JP4377213B2 - Transformer coil separation method and system - Google Patents

Description

  The present invention relates to a transformer coil separation method and system for separating an iron core and a coil constituting a transformer core.

  In general, electric power supplied from a power plant to a building or house through an electric wire is adjusted to an appropriate voltage (for example, 100 V) by a transformer installed on a utility pole or the like.

  This transformer is a device that raises and lowers the AC voltage using electromagnetic induction, and passes through an iron core in which strips of soft magnetic material (for example, silicon steel) are annularly laminated and an opening in the center of the iron core. It has a transformer core composed of a plurality of (for example, two) coils made of wound copper wire or the like. The iron core generates heat due to the flow of eddy currents perpendicular to the magnetic flux while repeating electromagnetic induction, causing heat loss of electric power. The laminated structure of the iron core is intended to reduce heat loss due to this eddy current. However, since the heat generation of the transformer increases as the capacity increases, an oil-filled transformer in which an iron core and a coil are immersed in a container containing insulating oil has been used for both electrical insulation and cooling. .

  As an insulating oil for an oil-filled transformer, an oil containing PCB (polychlorinated biphenyl) excellent in chemical stability, insulating properties, nonflammability, and adhesiveness (hereinafter referred to as “PCB oil”) is frequently used. Yes. PCB oil is mainly used as insulation oil for transformers and capacitors, but it is used as a heating medium for heaters and dryers, plasticizers for electric wires and resins, solvents for paints and pressure-sensitive paper (non-carbon paper), and the effectiveness of agricultural chemicals. It has also been used as an extender. However, since it has been found that PCB is an environmental pollutant that adversely affects the human body, many offices are forced to store waste PCB oil and electrical equipment containing PCB. In addition, PCBs were prohibited from being manufactured or imported in 1972, but PCBs that are sealed and used, such as insulation oil used in transformers and capacitors, are allowed to be used until the end of their useful life. Has been. As a result, many transformers and capacitors containing high-concentration PCBs continue to be used today.

  In the past, the processing method of the waste transformer was to take out the transformer from the tank, then incinerate the insulator and the insulating oil, and collect the remaining iron core and coil as valuable materials. However, incineration of insulating oil containing PCB is rarely performed at present because toxic dioxins may be generated when the combustion temperature is not properly controlled.

  Since the insulation oil of the waste transformer penetrates between the laminations of the iron core and the inside of the coil, the iron core and the coil are separated to completely remove the insulation oil. It is necessary to remove the insulating oil separately from

  The following patent document discloses a winding cutting method and apparatus for a transformer as a technique for separating an iron core and a coil of the transformer. According to this technique, the winding of the transformer is cut by pushing the shear blade moving along the side surface of the iron core.

Japanese Patent No. 3232285

  However, in the above-described transformer winding cutting method and apparatus, a part of the winding is moved by being pushed by the shearing blade, so that the winding cannot be easily cut within the movable range of the shearing blade.

  An object of the present invention is to provide a transformer coil separation method and system capable of completely cutting a coil of a transformer core and easily separating the iron core and the coil of the transformer core.

The transformer coil separation method of the present invention is a transformer coil separation method for separating an annular iron core constituting a transformer core and a coil wound around the iron core through an opening in the center of the iron core. , in a direction perpendicular against the annular surface of (a) the core, by moving the cutting tool in the winding direction substantially perpendicular of the coil, and cutting the coil, (B) the (a) A step of separating the iron core and the coil by moving the coil or the iron core so as to pass a part of the iron core from the cut of the coil cut in the step of .

  In a specific aspect of the present invention, in the step (A), the blade is moved substantially perpendicular to the winding direction of the coil along the annular surface so as not to be parallel to the annular surface of the iron core.

  (C) widening the cut by pushing the coil from the inside of the cut toward the outside of the core; and (D) projecting from the opening in the center of the core and covering a part of the annular surface. A step of pushing the curved portion of the coil that is covered from the inside of the cut toward the opening side so as not to cover the annular surface, and thereafter, the process proceeds to the step (B). It is characterized by that.

  In a specific aspect of the present invention, in the step (B), a part of the coil deformed in the step (D) is pushed into the opening in the center of the iron core.

  In a specific aspect of the present invention, in the step (B), a part of the coil located on the opposite side of the cut is pushed from the inside of the coil.

  In a specific aspect of the present invention, in the step (A), a metal plate is placed between the annular surface and the coil, the pressure required to move the blade is detected, and the blade is The movement of the blade is stopped when a predetermined pressure is detected by cutting the coil and contacting the metal plate.

  In a specific embodiment of the present invention, the blade is a double-edged blade.

The transformer coil separation system of the present invention is a transformer coil separation system for separating an annular iron core constituting a transformer core and a coil wound around the iron core through an opening in the center of the iron core. ,
(E) a blade having a width greater than the length in the direction perpendicular to the winding direction of the coil;
(F) facing the blade is perpendicular to the annular surface of the core, the core such that the direction substantially perpendicular winding of the blade is the coil, core support for supporting the coil or the transformer core, (H) a coil cutting device, and (G) a blade cutter for moving the blade toward the annular surface when the core support supports the iron core, the coil, or the transformer core. ,
(I) A coil-shaped forming tool that has a thin portion that can be inserted into a cut made in the coil cut by the coil cutting device, and deforms the coil by moving in a predetermined direction;
(J) a core support that supports the iron core, the coil, or the transformer core so that the thin portion and the annular surface of the iron core face each other, and the thin portion and the cut are parallel to each other;
(K) When the core support of (J) supports the iron core, the coil, or the transformer core, the thin portion is inserted into the cut and pushes the coil toward the outside of the iron core. The coil shape molding is performed so that the curved portion of the coil protruding from the opening in the center of the iron core and covering a part of the annular surface is pushed from the inside of the cut toward the opening side. Molding tool moving means for moving the tool,
(L) a coil removing tool that has a rod-shaped portion that can be inserted into the opening and removes the coil from the iron core by moving in a predetermined direction; and (M) the coil protruding from the opening by the rod-shaped portion. And (N) a coil removing device having a removing tool moving means for moving the coil removing tool so that a part of the coil is pushed into the opening.

  In a specific aspect of the present invention, the coil detaching device has (O) a length in a direction perpendicular to the winding direction of the coil, instead of the coil detaching tool (L) and the detaching tool moving means (M). A coil removing tool including a plate-like portion having a width of approximately the same size as that of the coil, and (P) inserting the plate-like portion into the cut of the coil expanded by the coil-shaped forming tool of (I). There is a removal tool moving means for moving the coil removal tool of (O) so that the portion moves along the iron core and pushes the coil from the inside.

  In a specific aspect of the present invention, the coil cutting device includes: (Q) pressure detection means for detecting the pressure required for the blade moving means to move the blade; and (R) the pressure detection means is a predetermined size. Cutting control means for stopping the movement of the blade when the pressure is detected.

  In a specific aspect of the present invention, the core support of (J) includes (S) a pair of rectangular members that support one annular surface of the iron core from below on both sides of the coil, and (T) the rectangle. A lateral support member that is fixed so as to sandwich a part of the iron core placed on the member and prevents the iron core from moving on the rectangular member.

  The coil cutting device and the coil detaching device are installed side by side so that the blade of (E) and the thin portion of the coil-shaped forming tool of (I) are positioned in parallel, and the core support of (F) (U) The transformer core is moved from the coil cutting device side to the coil removing device side while supporting the iron core, the coil, or the transformer core. A movable core support that is moved is provided.

  In a specific aspect of the present invention, the movable core support (U) includes (V) two horizontal members installed from the coil cutting device side to the coil removing device side, and (W) One annular surface of the iron core is supported on both sides of the coil from below, and an annular surface support mounted on the horizontal member, and (X) the coil removal from the coil cutting device side on the horizontal member It is comprised with the support tool moving means which moves the said annular surface support tool toward the apparatus side.

  In a specific aspect of the present invention, the support tool moving means (X) is fixed at one end to the annular surface support tool so as to be parallel to the horizontal member (Y), and at least the coil cutting device to the coil The ball screw is longer than the distance to the detaching device and (Z) a motor having a gear meshing with the ball screw.

  In a specific aspect of the present invention, the annular surface support of (W) is fixed to both sides of a part of the iron core placed on the annular surface support to prevent the iron core from moving in the lateral direction. A lateral support member is provided.

  In a specific aspect of the present invention, the blade (E) is a double-edged blade.

According to the transformer coil separation method of the present invention, in a direction perpendicular against the annular surface of the core, by moving the cutting tool in the winding direction substantially perpendicular coils, it is possible to completely cut the coil . Moreover, an iron core and a coil can be isolate | separated by moving a coil or an iron core so that a part of iron core may pass from the cut | interruption of the coil formed in this cutting process.

  Further, even if the blade is moved not to be parallel to the annular surface of the iron core and moved substantially perpendicularly to the winding direction of the coil along the annular surface, the coil can be completely cut in the same manner as described above. it can.

  In addition, by pushing the coil from the inside of the cut toward the outside of the iron core, the process of widening the cut and the curved portion of the coil protruding from the opening in the center of the core and covering a part of the annular surface, It is preferable to perform a step of deforming the annular surface so as not to be covered by pushing toward the opening side from the inside. Thereby, an iron core and a coil can be separated more easily. In this case, it is possible to separate the iron core and the coil by pushing a part of the deformed coil into the opening in the center of the iron core. Or you may make it push a part of coil located in the other side of a cut | interruption from the inside of the said coil.

  Also, when cutting the coil, a metal plate is placed between the annular surface and the coil, the pressure required to move the blade is detected, and the blade cuts the coil and contacts the metal plate. It is preferable to stop the movement of the blade when a predetermined pressure is detected. Thereby, while being able to prevent a cutter from biting into an iron core, it can also prevent that a coil bites into an iron core.

  Moreover, it is suitable to employ | adopt the thing of a double blade as a blade for coil cutting.

According to the transformer coil separation system of the present invention, the blade having a width larger than the length in the direction perpendicular to the winding direction of the coil of the transformer core is perpendicularly opposed to the annular surface of the iron core constituting the transformer core. And a coil cutting device having a core support that supports the iron core, coil, or transformer core so that the blade is substantially perpendicular to the coil winding direction, and a coil cut by the coil cutting device. A coil-shaped forming tool having a thin portion that can be inserted into a cut and deforming the coil by moving in a predetermined direction, and a coil removing device having a coil removing tool for removing the coil from the iron core by moving in a predetermined direction Since the coil of the transformer core is completely cut, the iron core and the coil of the transformer core can be easily separated.

  Moreover, as the coil removal tool and the removal tool moving means, a coil removal tool including a plate-like portion having a width substantially the same as the length in the direction perpendicular to the winding direction of the coil, and the plate-like portion as a coil-shaped forming tool. It can be constituted by a removal tool moving means for moving the coil removal tool so that the coil removal tool is inserted so as to be moved along the iron core and pushed along the iron core.

  Further, the coil cutting device includes a pressure detection unit that detects a pressure required for the blade moving unit to move the blade, and the movement of the blade is stopped when the pressure detection unit detects a predetermined pressure. It is preferable to provide a cutting control means.

  The core support is fixed so as to sandwich a pair of rectangular members that support one annular surface of the iron core from below on both sides of the coil and a part of the iron core that is mounted on the rectangular member. It is preferable to configure with a lateral support member that prevents movement on the rectangular member.

  Moreover, the coil cutting device and the coil removing device can be installed side by side so that the blade of the coil cutting device and the thin portion of the coil shape forming tool of the coil removing device are positioned in parallel. In this case, it is preferable to provide a movable core support that moves the transformer core from the coil cutting device side to the coil removing device side while supporting the iron core, coil, or transformer core. Accordingly, a series of steps from the step of cutting the coil to the step of separating the iron core and the coil can be performed as a flow operation.

  Furthermore, the movable core supporter supports two horizontal members installed from the coil cutting device side to the coil removal device side and one annular surface of the iron core from the lower side on both sides of the coil. It can be comprised by the annular surface support mounted on the top, and a support tool moving means for moving the annular surface support from the coil cutting device side toward the coil removal device side on the horizontal member. In this case, the support moving means includes a ball screw having one end fixed to the annular surface support so as to be parallel to the horizontal member, longer than the distance from the coil cutting device to the coil removing device, and a gear meshing with the ball screw. And a motor.

  In addition, it is preferable that the annular surface support member is provided with a lateral support member that is fixed to both sides of a part of the iron core mounted thereon and prevents the iron core from moving in the lateral direction. Thereby, in the process of separating the iron core and the coil, the iron core, the coil, or the transformer core can be prevented from being tilted or overturned.

  Moreover, it is preferable to employ | adopt the thing of a double blade as a blade which a coil cutting device comprises.

  FIG. 1 shows a coil cutting device 1 of a transformer coil separation system to which the transformer coil separation method of the first embodiment of the present invention is applied.

This coil cutting device 1
A rectangular pedestal 2 that supports the standing of the entire device;
Two vertical frames 3a and 3b standing vertically with a predetermined interval (for example, 1 m) at the center of the pedestal 2,
An upper frame 4 that horizontally connects the upper portions of the vertical frames 3a and 3b;
An intermediate frame 5 that connects the vertical frames 3a and 3b horizontally at the intermediate position.
It has a steel structure composed of

  The coil cutting device 1 includes a double-edged blade 7 having a width larger than the length in the direction perpendicular to the winding direction of the coil of the transformer core. Both ends of this blade 7 are fitted in vertical grooves 8 provided on the mutually opposing surfaces of the vertical frames 3a, 3b of the coil cutting device 1, and can be moved up and down with the blade edge facing downward. Yes. The blade 7 is preferably made of a material that is hard and resistant to impact and wear (for example, alloy tool steel) in order to reduce damage caused by repeatedly cutting a coil made of copper or the like.

  The coil cutting device 1 is provided with a hydraulic cylinder 10 vertically between the upper frame 4 and the intermediate frame 5 as blade moving means for moving the blade 7 up and down. This hydraulic cylinder 10 is a double-acting cylinder having hydraulic oil inlets and outlets at both ends, and oil supply pipes 11a and 11b for supplying and discharging hydraulic oil are connected to the respective inlets and outlets. The double-acting cylinder is provided with a hydraulic oil inlet / outlet at both ends of the cylinder, thereby enabling the piston to reciprocate by changing the flow of the hydraulic oil using a direction control valve of a hydraulic control device described later. The hydraulic cylinder 10 has a built-in position sensor that can detect the position of the piston inside the cylinder and output it as an electrical signal.

  The piston rod 13 of the hydraulic cylinder 10 extends downward through the intermediate frame 5, and its tip is fitted and fixed to a cylindrical piston head 14. By fixing the piston head 14 and the blade fixing tool 15 attached so as to sandwich the upper portion of the blade 7, the blade 7 moves up and down by receiving the power from the hydraulic cylinder 10.

  The coil cutting device 1 according to the first embodiment includes a hydraulic control device 16 that controls whether hydraulic oil is supplied to the hydraulic cylinder 10. The hydraulic cylinder 10 is supplied with hydraulic oil from the hydraulic control device 16 through the oil feed pipe 11a or 11b, and can supply, for example, about 50 tons of power. Specifically, the hydraulic control device 16 is provided with an operation button 17 and a stop button 18 for switching whether or not hydraulic oil is supplied to the hydraulic cylinder 10, and when the operation button 17 is pressed, Correspondingly, hydraulic oil is supplied from the hydraulic control device 16 to the hydraulic cylinder 10, and the cutter 7 may be configured to be lowered by receiving power from the hydraulic cylinder 10.

  On the pedestal 2 of the coil cutting device 1, a transformer core 20 is installed between the two vertical frames 3a and 3b. The transformer core 20 includes an iron core 21 formed by winding a belt-shaped iron plate in an annular shape, and two coils 23 a and 23 b wound around the iron core 21 through an opening 22 in the center of the iron core 21. . The coils 23a and 23b are obtained by winding a plurality of strip-shaped conductive wires (for example, a 2 cm-wide copper wire) 24 and insulating paper (not shown) around the iron core 21 a plurality of times.

  Further, on the pedestal portion 2 of the coil cutting device 1, two core supports 25a and 25b forming a rectangular parallelepiped are installed in parallel at a predetermined interval between the two vertical frames 3a and 3b. The upper surface supports one annular surface 26 of the iron core 21 of the transformer core 20 from below. The interval between the two core supports 25a and 25b is preferably slightly larger than the length in the direction perpendicular to the winding direction of the coils 23a and 23b, for example, so that the core supports 25a and 25b When the annular surface 26 is supported, the coils 23a and 23b of the transformer core 20 are partially inserted between the two core supports 25a and 25b. Furthermore, when installing the transformer core 20, as shown in the figure, the core 21 is cored so that the annular surface 26 of the iron core 21 and the blade 7 face each other and the blade 7 is perpendicular to the winding direction of the coils 23a and 23b. It is good to mount on the support tools 25a and 25b. Thereby, the blade 7 is lowered by receiving the power of the hydraulic cylinder 10, and can cut the coil 23a or 23b from above the transformer core 20 in a direction perpendicular to the winding direction of the coils 23a and 23b.

  Further, when the coils 23a and 23b of the transformer core 20 are cut by the coil cutting device 1 of the first embodiment, a metal plate (for example, made of stainless steel) is interposed between the annular surface 26 of the iron core 21 and the coils 23a and 23b. It is preferable to prevent the blade 7 from biting into the iron core 21 after cutting the coil 23a or 23b.

  FIG. 2 shows a state when one coil (for example, 23a) of the transformer core 20 is cut by the coil cutting device 1 in the coil cutting step of the transformer coil separating method of the first embodiment. When cutting the coil 23a or 23b, the blade 7 is located as close as possible to the opening 22 in the center of the iron core 21 toward the metal plate 27a or 27b on the annular surface 26 of the iron core 21 (for example, the position of the broken line in the figure). It is preferable that the lowering point is lowered.

  FIG. 3 shows a state when one coil 23 a of the transformer core 20 is cut with the blade 7. As shown in the drawing, when the blade 7 descends and cuts the coil 23a, a cut 28a having a shape (for example, a V shape) along the shape of the blade 7 is formed in the coil 23a. The lowering of the blade 7 is preferably stopped when the blade 7 comes into contact with the metal plate 27a inserted between the annular surface 26 of the iron core 21 and the coil 23a. Further, as described above, after one coil 23a is cut, the transformer core 20 is moved on the core supports 25a and 25b of the coil cutting device 1, and the other coil 23b is cut in the same manner as described above. can do.

  In the coil cutting device 1 of the first embodiment, the pressure (for example, hydraulic pressure) required for the blade 7 to descend and cut the coil 23a or 23b of the transformer core 20 as described above is detected, and the pressure is predetermined. Control is performed to automatically stop the lowering of the blade 7 when the size of the blade is reached. Specifically, the hydraulic control device 16 of the coil cutting device 1 performs this control.

  FIG. 4 shows the configuration of the hydraulic cylinder 10 and the hydraulic control device 16 of the coil cutting device 1.

  The hydraulic cylinder 10 has a built-in position sensor 29 that can detect the position of the piston in the cylinder and output this as an electrical signal.

The hydraulic control device 16
A tank 30 for storing hydraulic oil;
A pump 31 for pumping hydraulic oil in the tank 30;
A servo motor 32 for driving the pump 31;
A motor driver 33 for controlling the drive / stop of the servo motor 32;
Pressure detection means (for example, a pressure sensor) 34 capable of detecting the pressure of hydraulic oil pumped from the pump 31 and outputting the detected pressure as an electrical signal;
The hydraulic oil pumped from the pump 31 is supplied to the hydraulic cylinder 10 through one of the oil feed pipes 11a or 11b, and simultaneously, the hydraulic oil sent from the hydraulic cylinder 10 through the other oil feed pipe 11b or 11a is supplied. A direction control valve 35 to be sent to the tank 30;
When an electrical signal (hereinafter referred to as “pressure signal”) relating to the hydraulic pressure output from the pressure sensor 34 is received and reaches a predetermined magnitude, the direction of the flow of hydraulic oil supplied to the hydraulic cylinder 10 is switched. It comprises a cutting control means (for example, CPU) 37 for controlling the direction control valve 35 and controlling the motor driver 33 based on the signal output from the position sensor 29. Further, the motor driver 33 receives an operation signal or a stop signal output in response to pressing of the operation button 17 or the stop button 18 provided in the hydraulic control device 16, and drives / stops the servo motor 32 based on this signal. Can be controlled.

An operation mode of the hydraulic control device 16 will be described. First, when the operation button 17 provided in the hydraulic control device 16 is pressed, an operation signal is input to the motor driver 33 based on this. The motor driver 33 drives the servo motor 32 based on the above operation signal, and the pump 31 pumps the hydraulic oil in the tank 30 along with this, and is supplied to the hydraulic cylinder 10 through the oil feed pipe 11a. Thereby, the blade 7 (FIG. 1) descends and cuts the coil 23a or 23b of the transformer core 20. The pressure (hydraulic pressure) required for the blade 7 to cut the coil 23a or 23b is, for example, 10 kg / cm ² (about 3 tons).

  When the coil 23a or 23b is completely cut, the blade 7 comes into contact with the metal plate 27a or 27b fitted between the annular surface 26 of the iron core 21 and the coils 23a and 23b. Here, in the case where a material harder than copper such as stainless steel is used as the metal plates 27a and 27b, in order to lower the blade after the blade 7 contacts the metal plate 27a or 27b, for example. The required pressure rises rapidly. Based on the pressure signal output from the pressure sensor 34, the CPU 37 of the hydraulic control device 16 controls the direction control valve 35 to control the hydraulic oil when it reaches a preset pressure value (for example, 20 tons). Switch the flow. As a result, the blade 7 stops descending when it comes into contact with the metal plate 27a or 27b, and rises upon receiving the power of the hydraulic cylinder 10.

  As described above, the hydraulic control device 16 controls the operation of the hydraulic cylinder 10 to prevent the blade 7 from biting into the annular surface 26 of the iron core 21. This means that when the blade 7 bites into the annular surface 26 of the iron core 21, the cut end of the coil 23 a or 23 b bites into the cut of the iron core 21 at the same time, and thereafter the coils 23 a and 23 b are removed from the iron core 21. Is very important to avoid the problem of becoming difficult. Further, the position sensor 29 built in the hydraulic cylinder 10 is configured to stop the operation of the hydraulic cylinder 10 when outputting a signal indicating that the piston in the cylinder has moved (lowered) to a predetermined position. It is possible. Thereby, when cutting the coils of a plurality of transformer cores having the same dimensions, it is possible to determine in advance a position for lowering the blade 7 and to control the lowering of the blade 7 at that position. is there.

  The blade 7 is preferably raised to the highest position within the movable range of the hydraulic cylinder 10 after cutting the coil 23a or 23b. Then, if the position sensor 29 built in the hydraulic cylinder 10 is configured to output a signal indicating that the blade 7 has been lifted completely, the CPU 37 of the hydraulic control device 16 that has received the signal will receive the motor driver. The operation of the hydraulic cylinder 10 can be stopped by controlling the drive of the servo motor 32 by controlling 33.

  Further, when the stop button 18 of the hydraulic control device 16 is pressed, a stop signal is output along with this, and the motor driver 33 receiving the stop signal stops the drive of the servo motor 32, so that the operation of the hydraulic cylinder 10 is performed. It is desirable to have a configuration that stops the operation.

  FIG. 5 shows a coil removal device 40 of a transformer coil separation system to which the transformer coil separation method of the first embodiment is applied.

This coil detaching device 40 includes:
A rectangular pedestal 42 for supporting the standing of the entire apparatus;
Vertical frames 43 a, 43 b, 43 c, 43 d erected vertically from the four corners of the pedestal portion 42;
Upper frames 44a, 44b, 44c, 44d that horizontally connect upper ends of adjacent vertical frames 43a, 43b, 43c, 43d, respectively;
The vertical frames 43b and 43c on the right side (right side in the figure) and the vertical frames 43a and 43d on the left side (left side in the figure) are connected horizontally at a position below the center of the vertical frames 43a, 43b, 43c and 43d. The intermediate frame 46a, 46b is composed of a steel frame structure.

In addition, the coil removing device 40 includes, as means for separating the coils 23a and 23b and the iron core 21 of the transformer core 20 cut by the coil cutting device 1,
The transformer core 20 cut by the coil cutting device 1 has thin portions (for example, tapers) 48a and 48b that can be inserted into the cuts 28a and 28b formed in the coils 23a and 23b, and moves by moving in a predetermined direction. A pair of coil-shaped forming tools 50a, 50b for deforming 23a, 23b;
Located on both sides of a part of the coils 23a and 23b of the transformer core 20, the tips of the thin portions 48a and 48b and the annular surface 26 of the iron core 21 face each other, and the thin portions 48a and 48b and the coils 23a, 23a, A pair of core supports 51a, 51b for supporting the iron core 21 of the transformer core 20 from below so that the cut lines 28a, 28b of the 23b are parallel to each other;
Forming tool moving means 52a, 52b for moving the coil shape forming tools 50a, 50b in a predetermined direction;
A coil remover 54 that has a rod-like portion 53 that can be inserted into the opening 22 in the center of the iron core 21 and removes the coils 23a and 23b from the iron core 21 of the transformer core 20 by moving in a predetermined direction (for example, downward);
A removal tool moving means (for example, hydraulic pressure) that moves the coil removal tool 54 so that a part of the coils 23 a and 23 b protruding from the opening 22 of the iron core 21 is pushed into the opening 22 by the rod-shaped portion 53 of the coil removal tool 54. Cylinder) 56.

  Of the pair of core supports 51a and 51b, the core support 51a located on the near side (the near side in the figure) is provided with cord-like projections horizontally on both the left and right sides. It is configured to be able to move forward and backward by fitting in a groove 58 provided horizontally in the intermediate frames 46a and 46b. Further, a rectangular member 59 is horizontally fixed at the same height as the intermediate frames 46a and 46b on the left and right sides of the device on the front surface (front side in the figure) of the coil removing device 40. A pair of hydraulic cylinders 60a and 60b are fixed to the left and right sides of the front surface of the rectangular member 59, and each piston rod extends through the rectangular member 59 toward the inside of the apparatus. Is fixed to one core support 51a. Accordingly, the core support 51a is configured to move forward and backward by receiving power from the hydraulic cylinders 60a and 60b.

  On the other hand, the core support 51b located behind the core support 51a is horizontally fixed at the same height as the left and right intermediate frames 46a and 46b between the vertical frames 43c and 43d at the rear of the coil removing device 40. (For example, welding).

  When the transformer core 20 is supported by the core supports 51a and 51b, the interval between the core supports 51a and 51b is slightly larger than the length in the direction perpendicular to the winding direction of the coils 23a and 23b. A part of the coils 23a and 23b of the transformer core 20 may be fitted between the core supports 51a and 51b. Thereby, the transformer core 20 is supported from below in a state where a part of the iron core 21 is placed on the core supports 51a and 51b. Further, when the transformer core 20 is supported by the core supports 51a and 51b, the metal that has been inserted between the annular surface 26 of the iron core 21 and the coils 23a and 23b in the coil cutting process by the coil cutting device 1 is used. It is preferable to remove the plates 27a and 27b in advance.

Moreover, said shaping | molding tool movable means 52a, 52b
When the core supports 51a and 51b support the iron core 21 of the transformer core 20, the coil-shaped forming tools 50a and 50b are so arranged that the thin portions 48a and 48b are inserted into the cuts 28a and 28b of the coils 23a and 23b. Moving means (for example, hydraulic cylinders) 62a, 62b for horizontally moving the shape forming tools 50a, 50b;
For the same purpose as above, moving means (for example, hydraulic cylinders) 63a and 63b for moving the coil-shaped forming tools 50a and 50b up and down,
The coil-shaped forming tools 50a and 50b are moved in a predetermined direction so as to expand the cuts 28a and 28b by the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b inserted into the cuts 28a and 28b of the coils 23a and 23b. Moving means (for example, hydraulic cylinders) 64a and 64b are provided.

  Specifically, vertical grooves 66a and 66b are provided on the surfaces of the left vertical frames 43a and 43d facing each other and the surfaces of the right vertical frames 43b and 43c facing each other. Further, between the left vertical frames 43a and 43d and between the right vertical frames 43b and 43c, rectangular members 67a and 67b having protrusions at both ends are arranged, respectively. The vertical grooves 43a, 43b, 43c, 43d of the vertical grooves 66a, 66b are slidably fitted.

  In addition, rectangular cylinder fixing tools 68a and 68b for fixing hydraulic cylinders 62a and 62b for horizontally moving the coil-shaped forming tools 50a and 50b are attached to the centers of the rectangular members 67a and 67b. Furthermore, hydraulic cylinders 63a and 63b for moving the coil-shaped forming tools 50a and 50b up and down are fixed to the upper parts of the upper frames 44d and 44b of the coil removing device 40 located above the rectangular members 67a and 67b. The piston rod extends downward through the upper frames 44d and 44b, and the piston head and the cylinder fixtures 68a and 68b are connected. Thereby, each rectangular member 67a, 67b can move up and down by receiving the power from the hydraulic cylinders 63a, 63b installed in the upper frames 44d, 44b.

  Further, on the rectangular members 67a and 67b, rectangular connecting members 70a and 70b for horizontally connecting the both ends are fixed, so that the left and right rectangular members 67a and 67b are integrated into the upper and lower sides. It comes to move. In the connecting members 70a and 70b, cord-like grooves 72a and 72b are horizontally provided on the surfaces facing each other over the entire length. Between the connecting members 70a and 70b, rectangular horizontal moving members 73a and 73b to which the piston heads of the hydraulic cylinders 62a and 62b for horizontally moving the coil-shaped forming tools 50a and 50b are located. Projections provided at both ends of 73a and 73b are fitted in grooves 72a and 72b of the connecting members 70a and 70b so as to be slidable. Thereby, the horizontal moving members 73a and 73b can move horizontally (left and right in the figure) by receiving power from the hydraulic cylinders 62a and 62b.

  A pair of hinge members 75a and 75b are fixed to the horizontal movement members 73a and 73b on the surface located on the center side of the coil removing device 40, and a coil shape is formed via the hinge members 75a and 75b. The molding tools 50a and 50b are fixed. Therefore, the coil-shaped forming tools 50a and 50b are vertically rotatable around the fulcrum of the hinge members 75a and 75b.

  Further, hydraulic cylinders 64a and 64b for moving the coil shape forming tools 50a and 50b in a predetermined direction are fixed on the horizontal moving members 73a and 73b. The hydraulic cylinders 64a and 64b are hydraulic cylinders in which a fixture having a hinge mechanism is integrated, and a piston rod extends toward the center of the device, and is coiled via piston heads 77a and 77b having a hinge mechanism. It connects with the upper part of the shape shaping tools 50a and 50b. Thereby, the coil shape forming tools 50a and 50b receive power from the hydraulic cylinders 64a and 64b and can rotate around the fulcrum of the hinge members 75a and 75b fixed to the horizontal moving members 73a and 73b.

  Next, the arrangement configuration of the coil removal tool 54 and the removal tool moving means (for example, hydraulic cylinder) 56 will be described.

  Rectangular members 76a and 76b are vertically fixed (for example, welded) to the central portions of the connecting members 70a and 70b for connecting the forming tool moving means 52a and 52b of the coil removing apparatus 40 of the first embodiment. The upper ends thereof are connected horizontally by a rectangular member 78. On the upper surface of the rectangular member 78 that horizontally connects both the rectangular members 76a and 76b, a hydraulic cylinder 56 is fixed vertically as a removal tool moving means, and the piston rod extends downward through the rectangular member 78. ing. On the other hand, the coil remover 54 is fixed to a rod-like portion (for example, iron rod) 53 that can be inserted into the opening 22 in the center of the iron core 21 and an upper portion of the rod-like portion 53. It is composed of a substantially cylindrical piston rod fixture 79 provided with a hole of a size to be fitted. The coil remover 54 is integrated with the hydraulic cylinder 56 by fitting the piston rod of the hydraulic cylinder 56 into the hole on the upper surface of the piston rod fixture 79, and can move up and down by receiving power from the hydraulic cylinder 56. It has become.

  6 moves the coil-shaped forming tools 50a and 50b of the coil removing device 40 of the first embodiment, and the coil-shaped forming tools 50a and 50b are formed in the cut lines 28a and 28b formed in the coils 23a and 23b of the transformer core 20. The state when inserting the thin parts 48a and 48b of is shown.

  In the coil detaching apparatus 40 of the first embodiment, the step of separating the iron core 21 and the coils 23a and 23b of the transformer core 20 in the transformer coil separating method of the present invention is performed in advance. 23b is deformed into a shape suitable for the separation step. Specifically, first, as shown in the figure, the hydraulic cylinders 62a and 62b of the forming tool moving means 52a and 52b of the coil removing device 40 are operated, and the tips of the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b are moved. The coil-shaped forming tools 50a and 50b are moved so as to be positioned directly above the cuts 28a and 28b formed in the coils 23a and 23b of the transformer core 20.

  Next, the vertical movement hydraulic cylinders 63a and 63b (FIG. 5) provided in the molding tool moving means 52a and 52b of the coil removing device 40 are operated, and the thin portions 48a and 48b of the coil-shaped molding tools 50a and 50b. Is inserted into the cuts 28a and 28b formed in the coils 23a and 23b of the transformer core 20.

  FIG. 7 shows a state in which the thin portions 48 a and 48 b of the coil shape forming tools 50 a and 50 b are inserted into the cuts 28 a and 28 b formed in the coils 23 a and 23 b of the transformer core 20. As described above, when the thin portions 48a and 48b of the coil shape forming tools 50a and 50b are inserted into the cuts 28a and 28b formed in the coils 23a and 23b, the tips of the thin portions 48a and 48b correspond to the coils 23a and 23b. It is preferable that the cuts 28a and 28b are completely passed. Thereafter, by pushing the coils 23a and 23b of the transformer core 20 from the inside of the cuts 28a and 28b toward the outside of the iron core 21 (in the direction of the arrow in the figure), a step of expanding the cuts 28a and 28b is performed.

  In FIG. 8, in order to expand the cuts 28a and 28b of the coils 23a and 23b of the transformer core 20, the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b inserted into the cuts 28a and 28b are moved in a predetermined direction. The state of time is shown. Specifically, by operating the hydraulic cylinders 64a, 64b provided in the molding tool moving means 52a, 52b of the coil removing device 40 and extending the piston rod, the coil-shaped molding tools 50a, 50b become the molding tool moving means 52a. , 52b is rotated around the fulcrum of the hinge members 75a, 75b fixed to the horizontal moving members 73a, 73b, so that the thin portions 48a, 48b are outside the iron core 21 of the transformer core 20 (left and right in the figure). Move towards.

  FIG. 9 shows a state in which the cuts 28a and 28b of the coils 23a and 23b of the transformer core 20 are expanded by moving the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b.

  In the coil detaching apparatus 40 of the first embodiment, the coil-shaped forming tools 50a, 50b inserted into the cuts 28a, 28b of the coils 23a, 23b of the transformer core 20 are rotated by rotating the coil-shaped forming tools 50a, 50b. The portions 48a and 48b can easily deform the coils 23a and 23b using the rotational moment.

  Further, when the slits 28a and 28b of the coils 23a and 23b of the transformer core 20 are expanded as described above, a part of the coils 23a and 23b pushed by the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b are obtained. It is preferable to deform the coils 23a and 23b until the annular surface 26 of the iron core 21 is not covered.

  FIG. 10 shows that after the coils 23a and 23b of the transformer core 20 are deformed to expand the cuts 28a and 28b, the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b are directed to the iron core 21 side of the transformer core 20. Shows the state when moving.

  In the transformer coil separation method of the first embodiment, after the step of expanding the cuts 28a and 28b of the coils 23a and 23b of the transformer core 20, the iron core 21 protrudes from the opening 22 in the center of the iron core 21 of the transformer core 20. The curved portions 80a and 80a of the coils 23a and 23b covering a part of the annular surface 26 are pushed toward the opening 22 from the inside of the cuts 28a and 28b of the coils 23a and 23b, so that the annular shape of the iron core 21 is obtained. A step of deforming so as not to cover the surface 26 is performed.

  FIG. 11 shows a state where the curved portions 80a and 80b of the coils 23a and 23b of the transformer core 20 are pushed from both sides by the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b. Specifically, by operating the hydraulic cylinders 64a and 64b provided in the forming tool moving means 52a and 52b of the coil removing device 40 and pulling the piston rod, the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b. May be moved toward the opening 22 side in the center of the iron core 21.

As described above, when the curved portions 80a and 80b of the coils 23a and 23b of the transformer core 20 are pushed from both sides by the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b, the coil-shaped forming tools 50a and 50b are thin. It is preferable to move the portions 48a and 48b so that the curved portions 80a and 80b are deformed until the curved portions 80a and 80b of the coils 23a and 23b do not cover the annular surface 26 of the iron core 21. As a result, the curved portions 80a and 80b of the coils 23a and 23b form the forming projections 81a and 81b that protrude upward (upward in the drawing) from the opening 22 in the center of the iron core 21. The transformer coil separation method of the first embodiment Then, after the step of deforming the curved portions 80a and 80a of the coils 23a and 23b so as not to cover the annular surface 26 of the iron core 21, the forming projections 81a and 81b of the coils 23a and 23b deformed in this step are used. The process of separating the iron core 21 and the coils 23a and 23b by pushing the coil 22a into the opening 22 in the center of the iron core 21 and moving the coils 23a and 23b so as to pass a part of the iron core 21 from the cuts 28a and 28b of the coils 23a and 23b. I do. Further, when the step of separating the iron core 21 and the coils 23a and 23b is performed, the coil shape forming tools 50a and 50b may be moved from the position shown in the drawing to the initial position (for example, the position shown in FIG. 6). Although it may be stopped at the position shown in the figure, in the transformer coil separating method of the first embodiment, the coil-shaped forming tools 50a and 50b are moved to the initial positions.

  FIG. 12 shows a state in which the rod-like portion 53 of the coil removal tool 54 provided in the coil removal device 40 of the first embodiment is lowered toward the molding protrusions 81a and 81b of the coils 23a and 23b of the transformer core 20. Indicates the state.

  Further, the rod-shaped portion 53 of the coil removal tool 54 is of a thickness that can be inserted into the opening 22 in the center of the iron core 21 of the transformer core 20, and the material of the coils 23 a and 23 b of the transformer core 20 (for example, It is preferable to employ a material harder than copper.

  FIG. 13 shows that the rod-shaped portion 53 moves the molding projections 81a and 81b of the coils 23a and 23b into the opening 22 in the center of the iron core 21 by lowering the coil removal tool 54 provided in the coil removal device 40 of the first embodiment. Shows the pushed-in state.

  The molding protrusions 81a and 81b of the coils 23a and 23b of the transformer core 20 are deformed in advance so as not to cover the annular surface 26 of the iron core 21 by the coil-shaped molding tools 50a and 50b. When the rod-shaped portion 53 of the tool 54 pushes the molding projections 81a and 81b of the coils 23a and 23b from above, the molding projections 81a and 81b are not locked to the edge of the opening 22 of the iron core 21, and the coil A part of 23a and 23b can move (lower) smoothly in the opening 22 of the iron core 21. When the coils 23a and 23b are pushed down by the rod-shaped portion 53 of the coil removing tool 54 as described above, a part of the iron core 21 passes through the cuts 28a and 28b of the expanded coils 23a and 23b. As a result, the iron core 21 and the coils 23a and 23b are gradually separated.

  FIG. 14 shows a state where the iron core 21 of the transformer core 20 and the pair of coils 23a and 23b are separated. In this way, by further lowering the coil removing tool 54 provided in the coil removing device 40 from the position of FIG. 13, the rod-like portion 53 pushes the forming projections 81a and 81b of the coils 23a and 23b, while at the center of the iron core 21. Through the opening 22, the iron core 21 and the coils 23a and 23b can be completely separated.

  As described above, the transformer coil separation method of the first embodiment and the coil cutting device 1 and the coil removing device 40 for carrying out this method have been described, but the present invention is not limited to this. For example, in the coil removing device 40 (FIG. 5) of the first embodiment, the transformer core 20 is supported from below with a part of the iron core 21 placed on the pair of core supporters 51a and 51b. However, as shown in FIG. 15, the core supports 51a and 51b include a pair of rectangular members 83a and 83b for supporting one annular surface 26 of the iron core 21 from below on both sides of the coils 23a and 23b, and the rectangular members. A transverse support member 84 that is fixed so as to sandwich a part of the iron core 21 of the transformer core 20 mounted on 83a and 83b and prevents the iron core 21 from moving on the rectangular members 83a and 83b. You may do it.

  Specifically, the lateral support member 84 is configured by bending a flat plate (for example, an iron plate) into an L shape, and is vertically erected in a state where a part thereof is fixed on the rectangular members 83a and 83b. The part is located so as to sandwich a part of the iron core 21 from both sides (left and right in the figure). As a result, the thin portions 48a and 48b of the coil-shaped forming tools 50a and 50b inserted into the cuts 28a and 28b of the coils 23a and 23b of the transformer core 20 move in the direction away from the transformer core 20 and the cuts 28a and 28b. When the coils 23a and 23b are deformed so as to expand 28b, the transformer core 20, the iron core 21, or the coils 23a and 23b can be prevented from being out of balance and falling down. Further, by providing the core support tools 51a and 51b with the lateral support member 84 described above, not only the pair of coil-shaped forming tools 50a and 50b are moved simultaneously as in the first embodiment, but also the coil-shaped forming tool 50a. , 50b can be moved in order to expand the cuts 28a, 28b of the coils 23a, 23b.

  Next, a transformer coil separation system to which the transformer coil separation method according to the second embodiment of the present invention is applied will be described.

  FIG. 16 shows the transformer coil separation system of the second embodiment, and shows a state in which the coil cutting device 85 and the coil removing device 86 are installed side by side.

The coil cutting device 85
A pair of vertical frames 87a, 87b;
An upper frame 88 that horizontally connects the upper portions of the vertical frames 87a and 87b;
It has a steel structure composed of an intermediate frame 89 that connects the vertical frames 87a and 87b at a predetermined height (for example, 1 m).

Further, the coil cutting device 85 is a specific means for cutting the coils 97a and 97b of the transformer core 96.
A double-edged knife 93;
A hydraulic cylinder 94 is provided which is fixed on the vertical frame 88 and serves as a means for moving the blade 93 up and down. Also in this coil cutting device 85, it is preferable to control the operation of the hydraulic cylinder 94 using the hydraulic control device 16 (FIGS. 1 and 4) provided in the coil cutting device 85 of the first embodiment.

  Further, when the coils 97a and 97b of the transformer core 96 are cut by the coil cutting device 85, the cuts 98a and 98b are formed in the coils 97a and 97b as in the case of the first embodiment. .

On the other hand, the coil removing device 86 of the second embodiment is
Vertical frames 100a, 100b, 100c, 100d erected at the four corners of the device;
Of the vertical frames 100a, 100b, 100c, and 100d, upper frames 101a and 101b that horizontally connect the left two frames 100a and 100b and the upper two frames 100c and 100d, respectively,
Of the vertical frames 100a, 100b, 100c, and 100d at a predetermined height (for example, 1 m), the two left frames 100a and 100b and the two right frames 100c and 100d are connected horizontally. The steel frame structure comprised by the intermediate | middle frames 103a and 103b is comprised.

Further, the coil removing device 86 is a means for separating the coils 97a and 97b of the transformer core 96 cut by the coil cutting device 85 and the iron core 102 of the transformer core 96.
A pair of coil-shaped forming tools 104a and 104b having thin portions (for example, tapers) that can be inserted into the cuts 98a and 98b of the coils 97a and 97b of the transformer core 96;
Forming tool moving means 106 for moving the coil shape forming tools 104a and 104b in the vertical and horizontal directions;
A pair of coil removers 108a, 108b including a plate-like portion having a width substantially the same as the length in the direction perpendicular to the winding direction of the coils 97a, 97b of the transformer core 96;
Hydraulic cylinders 109a and 109b are provided as means for moving the coil removers 108a and 108b downward together with the plate-like portion.

  Moreover, in this coil removal apparatus 86, the metal plate is used as the coil removal tools 108a and 108b, and as a result, plate shape is comprised. As described above, the coil removers 108a and 108b can be configured by only a plate-shaped member or can be configured by combining a plurality of members including a plate-shaped portion, and this system is installed or used. It is possible to configure using appropriate members in accordance with the circumstances of the person.

The shaping tool moving means 106 of the coil removing device 86 of the second embodiment has a rectangular ring frame 110, and as specific means for moving the coil shape shaping tools 104a and 104b in the vertical direction and the horizontal direction,
In order to move the coil shape forming tools 104a and 104b in the vertical direction, a pair of hydraulic cylinders 112a fixed vertically on the upper frames 101a and 101b of the coil removing device 86 as means for moving the entire frame 110 in the vertical direction. 112b,
A pair of hydraulic cylinders 114a and 114b fixed horizontally to the frame 110 to move the coil shape forming tools 104a and 104b in the horizontal direction;
A cylinder fixing member 116 which is fixed to the rectangular ring frame 110 and supports a pair of hydraulic cylinders 109a and 109b as means for moving the coil removing tools 108a and 108b above the frame 110 is provided. With the above configuration, the frame 110 receives the power from the hydraulic cylinders 112a and 112b and moves up and down, so that the pair of coil shape forming tools 104a and 104b can move up and down at the same time.

  In the transformer coil separation system of the second embodiment, the coil cutting device 85 and the coil removing device 86 are arranged side by side as shown in the figure. Specifically, the blade of the coil cutting device 85 is provided. 93 and the coil shape forming tools 104a and 104b of the coil removing device 86 are arranged side by side so that the thin portions (for example, tapered portions) are parallel to each other. The transformer coil separation system further includes a movable core support 120 that moves the transformer core 96 from the coil cutting device 85 side to the coil removing device 86 side while supporting the iron core 102 of the transformer core 96. Yes.

The movable core support 120 is a specific means for moving the transformer core 96 from the coil cutting device 85 side to the coil removing device 86 side.
Two horizontal members 122a and 122b installed from the coil cutting device 85 side to the coil removing device 86 side;
One annular surface 124 of the iron core 102 of the transformer core 96 is supported from below on both sides of the coils 97a and 97b, and is placed on the horizontal members 122a and 122b so as to move horizontally on the horizontal members 122a and 122b. Annular surface supports 126a, 126b;
Supporting means moving means 128 for moving the annular surface supporting tools 126a and 126b from the coil cutting device 85 side toward the coil removing device 86 side on the horizontal members 122a and 122b.

  Of the two horizontal members 122 a and 122 b installed from the coil cutting device 85 side to the coil removing device 86 side, the rear horizontal member 122 a is the intermediate frame 89 of the coil cutting device 85 and the coil removing device 86. The front horizontal member 122b is fixed on the intermediate frames 103a and 103b, and is placed on the intermediate frame 89 and the intermediate frames 103a and 103b so as to be horizontally movable. Hydraulic cylinders 125a and 125b are fixed horizontally to the vertical frame 87b on the front side of the coil cutting device 85 and the vertical frame 100c on the right side of the coil removing device 86, and the piston rods are connected to the horizontal members 122a and 122b. It extends toward the side and is connected to the horizontal member 122b on the near side. As a result, the horizontal member 122b on the front side of the horizontal members 122a and 122b can move horizontally by receiving power from the hydraulic cylinders 125a and 125b, and the distance between the two members can be reduced by the coil 97a of the transformer core 96. 97b should be slightly wider than the length in the direction perpendicular to the winding direction.

  The annular surface supports 126a and 126b mounted on the horizontal members 122a and 122b have L-shapes in which two flat plates are joined at a right angle, respectively, and further, a rectangular shape is formed in the rear portion (the left portion in the figure). The flat plates 129a and 129a are fixed vertically. The annular surface supports 126a and 126b have one L-shaped part placed on the horizontal members 122a and 122b, and the other part along the opposing surfaces of the horizontal members 122a and 122b. The annular surface supports 126a and 126b support the transformer core 96 in a state where a part of the iron core 102 of the transformer core 96 is placed on a horizontal portion located on the horizontal members 122a and 122b.

  Further, a horizontal portion of the annular surface supports 126a and 126b is fixed so as to sandwich a part of the iron core 102 of the transformer core 96 from both sides, thereby preventing the iron core 102 from moving in the lateral direction. A direction support member 130 is provided. This lateral support member 130 has an L-shape obtained by bending a flat plate horizontally, and is fixed on each of the annular surface support tools 126a and 126b, with two surfaces facing each other. Standing up. Therefore, the two lateral support members 130 fixed on the respective annular surface supports 126a and 126b are in contact with the iron core 102 of the transformer core 96 on one side and the coils 97a and 97b on the other side. It is in a state of facing.

Further, the support tool moving means 128 for moving the annular surface support tools 126a and 126b on the horizontal members 122a and 122b,
Two ball screws 132a having one end fixed to the flat plates 129a and 129b at the rear portions of the annular surface supports 126a and 126b so as to be parallel to the horizontal members 122a and 122b and longer than at least the distance from the coil cutting device 85 to the coil removing device 86. 132b,
The motor 136 includes gears 134a and 134b that mesh with the ball screws 132a and 132b. Thereby, the transformer core 96 supports the annular surface by moving the ball screws 132a and 132b in the longitudinal direction thereof, that is, parallel to the horizontal members 122a and 122b as the gears 134a and 134b receiving the power of the motor 136 rotate. It can move on the horizontal members 122a and 122b together with the tools 126a and 126b.

  In the transformer coil separation system of the second embodiment, as described above, the coil cutting device 85 and the coil removing device 86 are installed side by side, and the transformer core 96 is conveyed from the coil cutting device 85 side to the coil removing device 86 side. By providing the means to perform, it is possible to perform a series of steps in the transformer coil separation method described in the first embodiment as a flow work. Further, even when the coils 97a and 97b of the transformer core 96 are cut by the coil cutting device 85 of the second embodiment, the gap between one annular surface 124 of the iron core 102 of the transformer core 96 and the coils 97a and 97b. It is preferable to insert metal plates (for example, stainless steel plates) 140a and 140b.

  In this transformer coil separation system, a method of separating the coils 97a and 97b and the iron core 102 of the transformer core 96 will be described.

  First, the step of placing the transformer core 96 on the annular surface supports 126a and 126b on the horizontal members 122a and 122b of the movable core support 120 and cutting the coil is performed. Specifically, the motor 136 of the support tool moving means 128 is driven, and the coil 97b on the front side of the coils 97a and 97b of the transformer core 96 is positioned directly below the blade 93 of the coil cutting device 85 with respect to the traveling direction. Thus, the annular surface supports 126a and 126b are moved together with the transformer core 96. The positions where the coils 97a and 97b are cut by the coil cutting device 85 are the same as the positions described in the first embodiment. After one of the coils 97b is cut, the annular surface supports 126a and 126b together with the transformer core 96 are further provided. And the other coil 97a is cut in the same manner.

  As described above, after cutting both the coils 97a and 97b, it is preferable to remove the metal plates 104a and 104b inserted between the iron core 102 and the coils 97a and 97b.

  Next, the transformer core 96 is moved from the coil cutting device 85 side to the coil removing device 86 side together with the annular surface supports 126a and 126b. Specifically, the transformer core 96 is preferably located at the center of the coil removal device 86. And the process of expanding the slits 98a and 98b made in the coils 97a and 97b by cutting the coils 97a and 97b of the transformer core 96 with the coil cutting device 85 is performed.

  Specifically, in order to move the coil shape forming tools 104a and 104b horizontally, the hydraulic cylinders 114a and 114b provided in the forming tool moving means 106 are operated, and the tips of the thin portions of the coil shape forming tools 104a and 104b are moved. The coil 97a, 97b of the transformer core 96 is positioned directly above the cuts 98a, 98b. Then, by actuating the hydraulic cylinders 112a and 112b that vertically move the frame 110 of the forming tool moving means 106 and lowering the coil-shaped forming tools 104a and 104b together with the frame 110, the thin portions of the coil-shaped forming tools 104a and 104b are moved. The coil 97a, 97b is inserted into the cut 98a, 98b. Thereafter, the hydraulic cylinders 114a and 114b for horizontally moving the coil-shaped forming tools 104a and 104b are operated to pull the piston rods, whereby the coil-shaped forming tools 104a and 104b connect the coils 97a and 97b to the cuts 98a and 98b. Pushing from the inside toward the outside of the iron core 102 results in expansion of the cuts 98a and 98b (see FIG. 10).

  After the cuts 98a and 98b are expanded, the curved portions of the coils 97a and 97b that protrude from the opening 142 in the center of the iron core 102 and cover a part of the annular surface 124 of the iron core 102 are cut into the cuts 98a and 98b. A step of deforming the annular surface 124 so as not to be covered is performed by pushing toward the opening 142 side from the inside of 98b (see FIG. 11). Specifically, the coil shape forming tools 104a and 104b may be moved in the opposite direction to the step of expanding the cut lines 98a and 98b. After this step, a step of separating the iron core 102 of the transformer core 96 and the coils 97a and 97b is performed.

  FIG. 17 shows a state when the iron core 102 of the transformer core 96 and the coils 97a and 97b are separated by the coil removing device 86 of the transformer coil separation system of the second embodiment.

  In the step of separating the iron core 102 of the transformer core 96 and the coils 97a and 97b in the transformer coil separating method of the second embodiment, the pair of coil removing tools 108a and 108b is expanded by the coil shape forming tools 104a and 104b. The coils 97a and 97b are inserted into the cuts 98a and 98b, and a part of the coils 97a and 97b located on the opposite side (downward in the drawing) of the coils 97a and 97b is inserted from the inside of the coils 97a and 97b. Press it.

  FIG. 18 shows a state where the iron core 102 of the transformer core 96 and the coils 97a and 97b are separated by lowering the pair of coil removers 108a and 108b. As described above, the pair of coil removers 108a and 108b inserted into the cuts 98a and 98b of the coils 97a and 97b are further lowered along the iron core 102, so that the tips of the coil removers 108a and 108b become the coils 97a, 97b can be pushed in from the inside, and the iron core 102 and the coils 97a and 97b can be separated.

  As described above, after separating the iron core 102 of the transformer core 96 and the coils 97a and 97b, the iron core 102 left on the annular surface supports 126a and 126b is removed, and the annular surface supports 126a and 126b are coiled. If it returns to the cutting device 85 side, the above process can be performed continuously.

  As mentioned above, although the Example of this invention was described, this invention is not limited to this. For example, as shown in FIG. 19, in the first embodiment, the blade 7 is directed in the A direction, that is, perpendicular to the annular surface 26 of the iron core 21 of the transformer core 20 and the winding direction of the coil 23a or 23b. The coil 23a or 23b is cut by moving vertically, but the blade 7 is moved obliquely with respect to the annular surface 26 of the iron core 21 as in the B direction or C direction in the figure. If the blade 7 is not moved in a state where at least the blade line of the blade 7 is parallel to the annular surface 26 of the iron core 21, the coils 23a and 23b can be completely cut as in the above embodiment. Further, in this case, the moving direction of the blade 7 may be inclined with respect to the direction A in the figure, or the result is obtained by changing the direction of the transformer core 20 without changing the moving direction of the blade 7 itself. Alternatively, the blade 7 may move in an oblique direction (B direction or C direction) with respect to the coil 23a or 23b of the transformer core 20 to cut the coil 23a or 23b.

  In the first embodiment (FIGS. 2 and 3), the blade 7 is moved substantially perpendicularly to the winding direction of the coil 23a or 23b toward the annular surface 26 of the iron core 21 of the transformer core 20, thereby Although 23a or 23b is cut, as shown in FIG. 20, the blade 145 different from the blade 7 of the first embodiment is not parallel to the annular surface 26 of the iron core 21, and the annular surface 26 may move substantially perpendicularly to the winding direction of the coil 23a or 23b (direction D in the figure). In this case, the annular cores 26 on both sides of the iron core 21 of the transformer core 20 are sandwiched by using the fixed core support 146a and the movable core support 146b as means for supporting the transformer core 20. It is preferable that the transformer core 20, the iron core 21, and the coils 23 a and 23 b are not tilted or fall down with the lowering of the blade 145. Appropriate moving means such as a hydraulic cylinder may be used as means for moving the movable core support 146b.

  In the transformer coil separation method of the first embodiment, after cutting the coils 23a and 23b of the transformer core 20, the iron core 21 and the coils 23a and 23b are separated by the coil removing device 40. It is also possible to manually perform the process performed by the coil removing device 40.

  In the embodiment, the hydraulic cylinder is used as means for moving the blades 7, 93, the coil-shaped forming tools 50a, 50b, 104a, 104b, etc., but is not limited thereto, and meshes with an air cylinder or a ball screw. Appropriate moving means such as a combination with a motor equipped with a gear can be adopted, and appropriate means can be used in accordance with the circumstances of the person installing or using the transformer coil separation system of the present invention. it can.

  Further, in the transformer coil separation system (FIG. 16) of the second embodiment, the support tool moving means 128 is a combination of two ball screws 132a and 132b and a motor 136 having gears 134a and 134b meshing therewith. Although configured, a belt conveyor is installed instead of the horizontal members 122a and 122b, and the transformer core 96 is directly mounted thereon, or the annular surface supports 126a and 126b are mounted similarly to the second embodiment. Good.

  In the embodiment, the blades 7, 93, and 145 are double-edged, but even if a single-edged blade is used, the coil of the transformer core can be cut in the same manner as described above.

  Moreover, in the process (FIGS. 12-14) which isolate | separates the iron core 21 and the coils 23a and 23b of the transformer core 20 of 1st Example, the rod-shaped part 53 of the coil removal tool 54 removes a part of coils 23a and 23b. As a result of pushing and moving the coils 23a and 23b, the iron core 21 and the coils 23a and 23b are separated, but the present invention is not limited to this. For example, if the lowering of the rod-like portion 53 of the coil removal tool 54 is stopped in the state of FIG. 13 and the iron core 21 is moved upward, the iron core 21 and the coils 23a and 23b can be moved without moving the coils 23a and 23b. Can be separated. In this case, for example, the pair of core supports 51 a and 51 b may be raised while supporting the iron core 21 using appropriate moving means such as a hydraulic cylinder.

The figure which shows the coil cutting device of 1st Example of this invention. The figure which shows a state when cut | disconnecting one coil of a transformer core with the blade of a coil cutting device. The figure which shows a state when the coil of a transformer core is cut | disconnected by the coil cutting device. The figure which shows the structure of the hydraulic control apparatus with which the coil cutting device was equipped. The figure which shows the coil removal apparatus of 1st Example. The figure which shows a state when inserting the thin part of a coil-shaped shaping tool in the cut | interruption of the coil of a transformer core. The figure which shows the state which inserted the thin part of the coil shape molding tool into the cut | interruption of the coil of a transformer core. The figure which shows a state when moving the thin part of the coil-shaped shaping tool inserted in the cut | interruption of the coil of a transformer core to a predetermined direction. The state which expanded the cut | interruption of the coil of a transformer core by moving the thin part of a coil shape molding tool is shown. The figure which shows a state when moving the thin part of a coil-shaped shaping tool toward the iron core side of a transformer core. The figure which shows the state which pressed the curved part of the coil of the transformer core from both sides with the thin part of the coil shape molding tool. The figure which shows a state when lowering the rod-shaped part of a coil removal tool toward the shaping | molding projection part of the coil of a transformer core. The figure which shows the state which the rod-shaped part pushed the shaping | molding projection part of the coil into the opening of the iron core center by descending a coil removal tool. The figure which shows the state which isolate | separated the iron core of a transformer core, and a pair of coil completely. The figure which shows the core support of another aspect provided with the horizontal direction support member which prevents a movement of an iron core. The figure which shows the transformer coil isolation | separation system of 2nd Example. The figure which shows a state when isolate | separating the iron core and coil of a transformer core with the coil removal apparatus of 2nd Example. The figure which shows a state when an iron core and a coil isolate | separate, when the front-end | tip of a coil removal tool pushes a coil from the inner side. The figure which shows another moving direction of a cutter. The figure which shows a state when moving a cutter in another direction and cut | disconnecting a coil.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,85 ... Coil cutting device, 2,42 ... Base part, 3a, 3b, 43a, 43b, 43c, 43d, 87a, 87b, 100a, 100b, 100c, 100d ... Vertical frame, 4, 44a, 44b, 44c, 44d, 88, 101a, 101b ... Upper frame, 5, 46a, 46b, 89, 103a, 103b ... Intermediate frame, 7, 93, 145 ... Cutlery, 8, 66a, 66b ... Vertical groove 10, 56, 60a, 60b , 62a, 62b, 63a, 63b, 64a, 64b ... hydraulic cylinder, 11a, 11b ... oil feed pipe, 13 ... piston rod, 14, 77a, 77b ... piston head, 15 ... blade fixture, 16 ... hydraulic control device, 17 ... Run button, 18 ... Stop button, 20, 96 ... Transformer core, 21, 102 ... Iron core, 22, 142 ... Opening, 23a, 2 b, 97a, 97b ... coil, 24 ... conducting wire, 25a, 25b, 51a, 51b, 146a, 146b ... core support, 26, 124 ... annular surface, 27a, 27b, 140a, 140b ... metal plate, 28a, 28b, 98a, 98b ... cut, 29 ... position sensor, 30 ... tank, 31 ... pump, 32 ... servo motor, 33 ... motor driver, 34 ... pressure sensor, 35 ... direction control valve, 37 ... CPU, 40, 86 ... coil removal 48a, 48b ... thin part, 50a, 50b, 104a, 104b ... coil shape forming tool, 52a, 52b, 106 ... forming tool moving means, 53 ... rod-like part, 54, 108a, 108b ... coil removal tool, 58, 72a, 72b ... groove, 59, 67a, 67b, 76a, 76b, 78, 83a, 83b ... rectangular member, 68a, 8b ... Cylinder fixing tool, 70a, 70b ... Connecting member, 73a, 73b ... Horizontal movement member, 75a, 75b ... Hinge member, 79 ... Piston rod fixing tool, 80a, 80a ... Curved part, 81a, 81a ... Molding projection part, 84, 130 ... Lateral support member, 110 ... Frame, 116 ... Cylinder fixing member, 120 ... Movable core support, 122a, 122b ... Horizontal member, 126a, 126b ... Annular surface support, 128 ... Support tool moving means, 129a, 129a ... flat plate, 132a, 132b ... ball screw, 134a, 134b ... gear, 136 ... motor.

Claims (16)

A transformer coil separation method for separating an annular iron core constituting a transformer core and a coil wound around the iron core through an opening in the center of the iron core,
In a direction perpendicular against the annular surface of (A) the core, by moving the cutting tool in the winding direction substantially perpendicular of the coil, and cutting the coil,
(B) separating the iron core and the coil by moving the coil or the iron core so as to pass a part of the iron core from the cut of the coil cut in the step (A); A transformer coil separation method comprising:   2. The transformer coil separation method according to claim 1, wherein in the step (A), the blade is not substantially parallel to the annular surface of the iron core and is substantially perpendicular to the winding direction of the coil along the annular surface. Transformer coil separation method characterized by moving to In the transformer coil separation method according to claim 1 or 2,
(C) expanding the cut by pushing the coil from the inside of the cut toward the outside of the iron core;
(D) The curved surface of the coil protruding from the opening at the center of the iron core and covering a part of the annular surface is pushed from the inside of the cut toward the opening side so that the annular surface is not covered. The transformer coil separating method is characterized in that it includes the step of deforming in such a manner, and thereafter the step (B) is performed.   4. The transformer coil separation method according to claim 3, wherein in the step (B), a part of the coil deformed in the step (D) is pushed into an opening in the center of the iron core. Coil separation method.   4. The transformer coil separation method according to claim 3, wherein in the step (B), a part of the coil located on the opposite side of the cut is pushed from the inside of the coil. .   6. The transformer coil separation method according to claim 1, wherein, in the step (A), a metal plate is placed between the annular surface and the coil, and the blade is moved. The transformer coil is characterized in that when the pressure of a predetermined magnitude is detected by detecting the pressure required for the cutting, and the blade cuts the coil and contacts the metal plate, Separation method.   The transformer coil separation method according to any one of claims 1 to 6, wherein the blade is a double-edged blade. A transformer coil separation system for separating an annular iron core constituting a transformer core and a coil wound around the iron core through an opening in the center of the iron core,
(E) a blade having a width greater than the length in the direction perpendicular to the winding direction of the coil;
(F) facing the blade is perpendicular to the annular surface of the core, the core such that the direction substantially perpendicular winding of the blade is the coil, core support for supporting the coil or the transformer core, (H) a coil cutting device, and (G) a blade cutter for moving the blade toward the annular surface when the core support supports the iron core, the coil, or the transformer core. ,
(I) A coil-shaped forming tool that has a thin portion that can be inserted into a cut made in the coil cut by the coil cutting device, and deforms the coil by moving in a predetermined direction;
(J) a core support that supports the iron core, the coil, or the transformer core so that the thin portion and the annular surface of the iron core face each other, and the thin portion and the cut are parallel to each other;
(K) When the core support of (J) supports the iron core, the coil, or the transformer core, the thin portion is inserted into the cut and pushes the coil toward the outside of the iron core. The coil shape molding is performed so that the curved portion of the coil protruding from the opening in the center of the iron core and covering a part of the annular surface is pushed from the inside of the cut toward the opening side. Molding tool moving means for moving the tool,
(L) a coil removing tool that has a rod-shaped portion that can be inserted into the opening and removes the coil from the iron core by moving in a predetermined direction; and (M) the coil protruding from the opening by the rod-shaped portion. A transformer coil separation system comprising: (N) a coil removal device having removal tool moving means for moving the coil removal tool so that a part of the coil removal tool is pushed into the opening. 9. The transformer coil separation system according to claim 8, wherein the coil removing device is replaced with the coil removing tool (L) and the removing tool moving means (M).
(O) a coil removal tool including a plate-like portion having a width substantially the same as the length in the direction perpendicular to the winding direction of the coil;
(P) Insert the plate-like portion into the cut of the coil expanded by the coil-shaped forming tool of (I), so that the plate-like portion moves along the iron core and pushes the coil from the inside. Further, the transformer coil separation system is characterized by further comprising removal tool moving means for moving the coil removal tool of (O). The transformer coil separation system according to claim 8 or 9, wherein the coil cutting device comprises:
(Q) pressure detecting means for detecting a pressure required for the blade moving means to move the blade; and
(R) A transformer coil separation system comprising cutting control means for stopping movement of the blade when the pressure detection means detects a pressure of a predetermined magnitude. The transformer coil separation system according to any one of claims 8 to 10, wherein the core support (J) is
(S) a pair of rectangular members for supporting one annular surface of the iron core from below on both sides of the coil;
(T) It is fixed by sandwiching a part of the iron core placed on the rectangular member, and is composed of a lateral support member that prevents the iron core from moving on the rectangular member. Transformer coil separation system. The transformer coil separation system according to any one of claims 8 to 11, wherein the coil cutting device and the coil are arranged such that the blade of (E) and the thin portion of the coil-shaped forming tool of (I) are positioned in parallel. A detaching device is installed side by side, and instead of the core support of (F) and the core support of (J), (U) the transformer with the iron core, the coil, or the transformer core supported. A transformer coil separation system comprising a movable core support for moving a transformer core from the coil cutting device side to the coil removing device side. The transformer coil separation system according to claim 12, wherein the movable core support of (U) is:
(V) two horizontal members installed from the coil cutting device side to the coil removing device side;
(W) an annular surface support that supports one annular surface of the iron core from below on both sides of the coil, and is placed on the horizontal member;
(X) Transformer coil separation system comprising: a support tool moving means for moving the annular surface support tool from the coil cutting device side toward the coil removal device side on the horizontal member. . The transformer coil separation system according to claim 13, wherein the support moving means (X) is:
(Y) one end fixed to the annular surface support so as to be parallel to the horizontal member, and at least a ball screw longer than the distance from the coil cutting device to the coil removing device;
(Z) A transformer coil separation system comprising a motor having a gear meshing with the ball screw.   15. The transformer coil separation system according to claim 13, wherein the annular surface support of (W) is fixed to both sides of a part of the iron core mounted on the annular surface support, and the side of the iron core is fixed. Transformer coil separation system characterized in that a lateral support member is provided to prevent movement in the direction. 16. The transformer coil separation system according to claim 8, wherein the blade of (E) is a double blade.

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