JP5560878B2 - Oil combustor core lifting device - Google Patents

Description

  The present invention relates to a structure of a core lifting device of a core vertical oil combustor.

  The core up-down type oil combustor performs the core up-and-down operation with the core held in the gap between the core outer cylinder attached to the upper surface of the oil tank and the core inner cylinder standing from the bottom plate of the oil tank. The vertical axis of the core is provided, and the vertical axis of the core is rotated in the direction of raising the core to move the core upward so that the tip of the core protrudes to the upper part of the core housing cylinder, and the core is ignited by an ignition device such as an ignition heater. Then, the fuel sucked up at the lower end of the lead starts burning at the upper end of the lead. In addition, the combustion amount can be adjusted by rotating the vertical axis of the core during combustion to change the height of the core, and when the core is lowered to the fire extinguishing position, the fire is extinguished.

  A core lifting device provided in such an oil combustor is generally configured to move the core up and down by meshing a rack gear attached to the core holder and a pinion gear provided at the inner end of the core vertical shaft. However, the configuration with the rack gear and the pinion gear is troublesome because the rotation amount of the core vertical axis is large and the number of operations of the core vertical operation is increased, and it takes time to process the rack gear and the pinion gear, which increases the manufacturing cost. There was a problem. For this reason, instead of a configuration with a rack gear and a pinion gear, a drive plate is attached to the inner end of the core vertical shaft, a drive pin is formed from the movable end of the drive plate toward the core, and the core is attached to the outer periphery of the core. There is a proposal of a core lifting device in which a connecting portion with which a driving pin is engaged is provided on the side surface of the holder, and the core holder is driven by the driving pin of the driving plate that is movable when the core vertical axis is rotated to move the core up and down ( Patent Document 1).

  With the configuration of the above-mentioned Patent Document 1, a rack gear and a pinion gear are not required, so that the manufacturing cost can be reduced, the amount of rotation of the core vertical axis is reduced, the core vertical operation can be performed with a small number of operations, and operability can be improved. became. However, since this structure is a structure in which the drive pin supports the entire core only on one side of the core, a problem has been found that the core tends to tilt, and if the core tilts, the combustion balance is lost and odor is generated. The fire extinguishing performance may be deteriorated or the core up / down operation may be hindered.

As a countermeasure, the applicant attaches a drive restricting portion to the drive plate so as to be positioned between the drive plate and the connecting portion of the lead holder, and the drive restricting portion comes into contact with the side surface of the connecting portion of the lead holder. The structure which prevents the inclination of a core by pressing a holder to the core side was proposed (patent document 2).
JP 2005-106332 A JP 2006-258403 A

  The configuration of Patent Document 2 has a certain effect as a countermeasure against the inclination of the core during normal use. However, the tar component adheres to the core and the hardness and thickness of the core increase, and the core and the inside / outside of the core When the gap with the cylinder narrows and the contact resistance increases, the core may be inclined only by the force of the spring of the drive restricting portion, which is not yet a complete measure. In view of this, the present invention proposes a new core lifting device that can eliminate the drawbacks of the conventional structure of supporting the core on one side while maintaining the operability during the core lifting operation.

The present invention solves the above-described problem, and includes a core up / down shaft 1 for performing a core up / down operation, a core inner cylinder 3 erected from a bottom plate of an oil tank 2, and a core outer cylinder attached to an upper surface plate of the oil tank 2. In the oil combustor in which the core 5 is mounted in the gap between the core inner cylinder 3 and the core outer cylinder 4 so as to be vertically movable, and the core 5 is vertically moved by the rotation of the core vertical shaft 1. A drive plate 6 attached to the inner end of the core vertical shaft 1 and movable about the core vertical shaft 1 and a drive pin 6a formed from the movable end of the drive plate 6 toward the core 5 are provided. A pair of engagement pins 5a is formed on the side surface of the core 5, and a substantially U-shaped drive in which the drive pin 6a of the drive plate 6 and the engagement pin 5a of the core 5 are engaged in the oil tank 2. A lever 7 and a rotary shaft 8 that rotatably supports the drive lever 7 are provided. The drive lever 7 is rotated by a base 7a. 8, both end portions 7b are positioned on the sides of the core 5, and core engaging portions 9 for engaging the engaging pins 5a of the core 5 are provided on both end portions 7b. The front end portion 7b on one side is provided with an engaging portion 10 that engages with the driving pin 6a of the driving plate 6, and the engaging portion 10 is constituted by a long hole 10a along the longitudinal direction of the driving lever 7, When the core vertical shaft 1 is rotated, the drive pin 6a of the drive plate 6 drives the drive lever 7 while changing its position in the long hole 10a, and the drive lever 7 rotates around the rotary shaft 8. The core 5 is moved up and down , and the elongated hole 10a has a portion corresponding to the movement range of the drive pin 6a between the maximum combustion position and the minimum combustion position so that the base 7a side of the drive lever 7 becomes higher. Inclined .

Further, a core vertical shaft 1 for performing the core vertical operation, a core inner cylinder 3 standing from the bottom plate of the oil tank 2, and a core outer cylinder 4 attached to the upper surface plate of the oil tank 2 are provided. In the oil combustor in which the core 5 is moved up and down by the rotation of the core vertical shaft 1 in the gap between the core outer cylinder 4 and attached to the inner end of the core vertical shaft 1. A drive plate 6 that is movable about the core vertical axis 1 and a drive pin 6a that is formed from the movable end of the drive plate 6 toward the core 5 are provided. A pin 5a is formed, a substantially U-shaped drive lever 7 in which the drive pin 6a of the drive plate 6 and the engagement pin 5a of the core 5 are engaged in the oil tank 2, and the drive lever 7 is rotated. A rotary shaft 8 that is movably supported, and the drive lever 7 is attached to the rotary shaft 8 by a base portion 7a so that both distal ends 7b A core engaging portion 9 that is located on the side of the core 5 and that engages with the engaging pin 5a of the core 5 is provided at both ends 7b, and the tip 7b on the core vertical shaft 1 side An engaging portion 10 is provided for engaging the drive pin 6a of the drive plate 6. The drive pin 6a of the drive plate 6 drives the drive lever 7 when the core vertical shaft 1 rotates, and the drive lever 7 The rotary shaft 8 is rotated around the rotary shaft 8 to move the core 5 up and down, and the rotary shaft 8 is provided with a regulating means 12 with an interval 11, and the drive lever 7 is arranged with this interval 11, The restricting means 12 sandwiches the drive lever 7, and the side surface of the drive plate 6 and the side surface of the distal end portion 7b of the drive lever 7 come into contact with each other to restrict the position of the drive lever 7.

  In addition, a regulating means 12 is arranged on the rotating shaft 8 with an interval 11, the driving lever 7 is arranged at the interval 11, and the regulating means 12 sandwiches the driving lever 7 to position the driving lever 7. By restricting, the movement of the drive lever 7 in the axial direction of the rotary shaft 8 is prevented to enable a smooth operation during the core up / down operation, and at the combustion position, the core 5 will move in the core lowering direction by its own weight. However, since the rotation of the drive lever 7 in the core lowering direction is prevented, the position of the core 5 can be held.

  Further, since the side surface of the drive plate 6 and the side surface of the tip end portion 7b of the drive lever 7 are in contact with each other, a force that causes the core 5 to move in the core lowering direction due to its own weight acts. Since resistance could also be given to the contact surface with the drive lever 7, the rotation of the drive lever 7 and the core vertical shaft 1 in the core lowering direction can be prevented, and the core 5 can be securely held at the set position. it can.

  The present invention is provided with a drive lever 7 that engages a drive pin 6a of the drive plate 6 with an engagement pin 5a formed on both sides of the core 5, and the drive pin 6a interlocked with the rotation of the core vertical shaft 1 is a drive lever. 7, and the drive lever 7 is configured to move up and down the core 5 by rotating about the rotation shaft 8. Both ends 7 b of the drive lever 7 support the core 5 from both sides. Therefore, the tip 5 of the lead 5 can be maintained at a uniform height all around the core 5 without tilting, and good combustion performance can be maintained.

  In addition, when the core 5 becomes hard or the thickness of the core 5 increases due to tar adhering to the core 5 as the product is used, the resistance when the core 5 moves up and down may change. Since both end portions 7b of the lever 7 support and drive both sides of the core 5, the force of the drive plate 6 is evenly transmitted to both sides of the core 5, and the inclination of the core 5 can be prevented. For this reason, the core up / down operation cannot be immediately performed due to the adhesion of tar to the core 5 and can be used for a long period of time, which overcomes the disadvantage of the conventional structure in which the core 5 is moved up and down only on one side. It was possible to cope with changes in resistance when moving up and down, and the durability of the product could be improved.

  Further, the engaging portion 10 of the drive lever 7 with which the drive pin 6a of the drive plate 6 engages is constituted by a long hole 10a along the longitudinal direction of the drive lever 7, and the long hole 10a is minimum from the maximum combustion position. The portion corresponding to the movement range of the drive pin 6a between the combustion positions is inclined so that the base 7a side of the drive lever 7 becomes higher. With this configuration, the rotation angle of the drive pin 6a between the maximum combustion position and the minimum combustion position matches the inclination angle of the long hole 10a, and the drive pin 6a rotates along the inclination of the long hole 10a. Compared with the amount of rotation of the vertical shaft 1, the amount of rotation of the drive lever 7 is reduced, and the amount of movement of the core 5 in the vertical direction can be reduced, so that the amount of combustion in the combustion range can be easily adjusted.

In addition, a restricting means 12 for holding the drive lever 7 is arranged on the rotary shaft 8 to prevent the drive lever 7 from moving in the axial direction of the rotary shaft 8. Since the useless movement of the lever 7 can be suppressed, the drive lever 7 can efficiently transmit the force of the drive pin 6a to the lead 5 and the lead up / down operation can be performed smoothly.
Further, when the lead 5 is set at the combustion position, a force to move in the lead-down direction is exerted by the weight of the lead 5, but the resistance of the drive lever 7 is caused by the resistance generated on the contact surface between the restricting means 12 and the drive lever 7. Since rotation in the core lowering direction is prevented, the core 5 can be held in the correct set position, and good combustion performance can be obtained.

  Further, by bringing the side surface of the drive plate 6 and the side surface of the drive lever 7 into contact with each other, resistance can be applied even on the contact surface between the drive plate 6 and the drive lever 7, so that the core 5 is lowered by the weight of the core 5. Even if it is about to move, the resistance generated at the contact surface between the drive plate 6 and the drive lever 7 prevents the core vertical shaft 1 and the drive lever 7 from rotating in the core lowering direction. And good combustion performance can be obtained.

It is a longitudinal cross-sectional view of the oil combustor which shows the Example of this invention. It is a cross-sectional view of an oil combustor showing an embodiment of the present invention. It is principal part sectional drawing explaining the state of the maximum combustion position of the core lifting apparatus which shows the Example of this invention. It is principal part sectional drawing explaining the state of the minimum combustion position of the core lifting apparatus which shows the Example of this invention. It is principal part sectional drawing explaining the state of the fire extinguishing position of the core raising / lowering apparatus which shows the Example of this invention.

  The present invention will be described with reference to the embodiments shown in the drawings. 2 is an oil tank of an oil combustor, 3 is a core inner cylinder erected from the bottom plate of the oil tank 2, 4 is a core outer cylinder attached to the upper surface of the oil tank 2, 13 is a core housing cylinder constituted by the core inner cylinder 3 and the core outer cylinder 4, and 5 is a core attached to the gap between the core inner cylinder 3 and the core outer cylinder 4 so as to be movable up and down. Sucked at the lower end of the lead 5 and supplied to the upper end of the lead 5.

  1 is a core vertical axis for performing a core up / down operation inserted into the oil tank 2 from the side of the oil tank 2, 1 a is an operation knob of the core vertical axis 1 attached to the outer end of the core vertical axis 1, and 14 is a core 5 Combustion cylinders arranged on the upper side, the core vertical shaft 1 is rotated in the direction of raising the core by the operation knob 1a to move the core 5 upward, and the core 5 is ignited by an ignition device such as an ignition heater (not shown). The fuel in the oil tank 2 sucked up at the lower end of the gas is burned at the upper end of the wick 5, and the generated combustion flame and combustion gas are supplied with air by the combustion cylinder 14 to complete the combustion.

  15 is the base of the core lifting device attached to the side of the oil tank 2, 16 is a rotary plate that is loosely fitted to the core vertical shaft 1 and rotates around the core vertical shaft 1, and 16a rotates with the core vertical shaft 1. A locking portion provided between the plate 16, 17 is a return spring attached between the oil tank 2 and the rotating plate 16, and 18 is a stopper that engages with the rotating plate 16 at the center-up position. When the vertical shaft 1 is rotated in the centering direction, the rotating plate 16 is rotated together via the locking portion 16a to wind up the return spring 17, and the rotating plate 16 and the stopper 18 are engaged at the maximum combustion position. Accordingly, the rotating plate 16 holds the rotational force in the core lowering direction by the return spring 17.

  A seismic device 19 is connected to the stopper 18. When the seismic device 19 detects a predetermined vibration value, the stopper 18 and the rotating plate 16 are disengaged, and the rotating plate 16 is moved by the force of the return spring 17. The oil combustor can be extinguished by rotating in the core lowering direction and rotating the core vertical shaft 1 in the core lowering direction via the locking portion 16a.

  Further, the core vertical shaft 1 is provided so as to be able to rotate independently from the locking portion 16a in a state where the rotation plate 16 and the stopper 18 are engaged, and the core vertical shaft 1 can be manually rotated. Therefore, it is possible to perform a normal fire extinguishing operation and adjustment of the combustion amount.

  Reference numeral 6 denotes a drive plate that rotates around the core vertical axis 1 provided at the inner end of the core vertical axis 1, and 6a denotes a drive pin that extends from the movable end of the drive plate 6 toward the core 5 side. When the shaft 1 is rotated, the drive plate 6 is driven and the drive pin 6a is rotated about the core vertical axis 1.

  7 is a drive lever formed in a substantially U-shape arranged in the oil tank 2, 7b is two tip portions of the drive lever 7 arranged so as to sandwich both sides of the core 5, and 7a is two tip portions 7b. Reference numeral 7c denotes a shaft hole formed in the base 7a. Reference numeral 8 denotes a rotary shaft that is disposed in the oil tank 2 and serves as the rotation center of the drive lever 7, 20 denotes a shaft holding member that engages with the tip of the rotary shaft 8 that is inserted into the oil tank 2, and 21 denotes the oil tank 2. It is a packing attached to the periphery of the through hole formed on the side surface. The rotary shaft 8 is inserted into the oil tank 2 from the through hole to which the packing 21 is attached, and after passing through the shaft hole 7c of the base portion 7a of the drive lever 7, the rotation is performed. The tip of the shaft 8 is fitted to the shaft holding member 20. A shaft fixing member 15 a is formed by a part of the base 15 of the core lifting device. When the base 15 is attached to the side surface of the oil tank 2, the shaft fixing member 15 a comes into contact with the outer end of the rotating shaft 8 to rotate the rotating shaft 8. Is pressed, and the packing 21 is brought into close contact with the periphery of the through hole of the oil tank 2 to fix the rotary shaft 8 in the oil tank 2.

  The drive lever 7 in the oil tank 2 is attached so that the shaft hole 7c of the base portion 7a is fitted to the rotary shaft 8 and is rotatable about the rotary shaft 8. One end portion 7b of the drive lever 7 is It is located between the core 5 and the drive plate 6. Reference numeral 10 denotes an engaging portion provided at the tip portion 7b located between the core 5 and the driving plate 6. The engaging portion 10 of the embodiment is configured by a long hole 10a along the longitudinal direction of the driving lever 7. The drive pin 6a of the drive plate 6 is engaged with the long hole 10a, and when the core vertical shaft 1 is rotated, the drive pin 6a pushes the inner edge of the long hole 10a and transmits a force to the drive lever 7 to drive the drive lever 7 Rotates around the rotation shaft 8.

  22 is a core holder attached to the outer periphery of the core 5, 5 a is a pair of engaging pins formed outward from the side surface of the core holder 22, and the core 5 is integrally attached to the core holder 22 before the core inner cylinder. 3 is attached. Reference numeral 9 denotes a core engaging portion formed by L-shaped slits provided at both end portions 7 b of the drive lever 7, and the upper end of the L-shaped core engaging portion 9 is opened at the upper end of the drive lever 7. Yes. When the engaging pin 5a of the core 5 attached to the core inner cylinder 3 is inserted from the upper opening of the core engaging portion 9 and the core 5 is rotated in the circumferential direction, the engaging pin 5a of the core 5 becomes the core engaging portion 9 Moving to the horizontal part, the core 5 engages with the drive lever 7. With this configuration, when the drive lever 7 is driven around the rotary shaft 8 by rotating the core vertical shaft 1, the inner edge of the core engaging portion 9 of the drive lever 7 pushes the engagement pin 5 a of the core 5 to press the core. The force is transmitted to 5, and the core 5 can move up and down.

By the way, since the conventional core lifting device has a structure in which the drive pin 6a of the drive plate 6 is directly engaged with the core holder 22 and supports only one part on one side of the core 5, the side where the core 5 is not supported is There is a problem that the position of the lead 5 is lowered by the weight of the lead 5 and the lead 5 is easily inclined, and when the lead 5 is set at the combustion position, the side supported by the drive pin 6a and the side not supported. The core height is changed, and in a portion where the core height is low, the distance between the flame at the tip of the core 5 and the core accommodating cylinder 13 may be short, and the fire extinguishing time may be long.
Further, when tar adheres to the tip of the core 5 and the core 5 becomes harder or the thickness of the core 5 increases, the clearance between the core 5 and the core housing cylinder 13 becomes narrower and resistance when the core is moved up and down increases. However, when driving the core 5, a strong force is required. However, in the configuration in which the core 5 is driven only at one side of the core 5, only one side of the core 5 can be moved. There is a problem that the core up / down operation cannot be performed in a short period of time.

  The present invention solves these conventional problems, and since both end portions 7b of the drive lever 7 support both sides of the core 5, only one side of the core 5 is lowered and the inclination of the core 5 is inclined. Since the core height can be made uniform over the entire circumference of the core 5, the temperature of the core housing cylinder 13 becomes uniform, a good combustion balance can be maintained, and stable combustion performance is achieved. It became something that can be obtained.

  Further, since the force of the drive pin 6a of the drive plate 6 can be transmitted to both sides of the core 5 via the drive lever 7, the force is not concentrated on only a part of the core 5, and tar adheres to the core 5. Even when the resistance when the core is raised or lowered due to the above, the core 5 can be moved up and down without causing the inclination of the core 5, and only a little tar is attached to the core 5 as in the past. There was no longer a situation where the core could not be moved up and down immediately, and it was not disabled in a short period from the start of use, and it could be used for a long period of time.

  Further, the drive pin 6a is configured to move the core 5 up and down via the drive lever 7, and the drive lever 7 rotates about the rotation shaft 8, so that the longer the distance from the rotation shaft 8, the smaller the drive pin 6a. The drive lever 7 can be driven with force. For this reason, in the embodiment, the engaging portion 10 of the drive lever 7 is disposed on the distal end side of the drive lever 7 with respect to the position of the core engaging portion 9, and the rotational axis is more than the distance from the rotational shaft 8 to the engaging pin 5a. The distance from 8 to the drive pin 6a is longer. In this way, the force with which the drive pin 6a drives the drive lever 7 can be made smaller than the force with which the core 5 tries to drive the drive lever 7 via the engagement pin 5a. The core vertical shaft 1 can be rotated with less force than the conventional structure that directly drives the core 5, and the position of the core 5 can be held with less force when set at the combustion position.

  In addition, since the drive pin 6a of the drive plate 6 rotates about the core vertical axis 1 as a rotation center, the drive pin 6a is positioned above and below the core vertical axis 1 in the range 45 degrees obliquely upward from the uppermost portion. The amount of movement of the drive pin 6a in the vertical direction with respect to the rotation amount of the shaft 1 is reduced. On the other hand, when the drive pin 6 a is in the range from 45 degrees above and 45 degrees below the core vertical axis 1, the vertical movement amount of the drive pin 6 a increases with respect to the rotation amount of the core vertical axis 1. In the embodiment, the combustion range is set between 45 degrees above the uppermost part and the vicinity below 45 degrees is set as the fire extinguishing position. With this configuration, the rotation of the core vertical axis 1 is performed in the combustion range. As the lead 5 moves up and down little by little, it becomes easy to adjust the lead height, and the amount of movement of the lead 5 up and down relative to the amount of rotation of the lead vertical shaft 1 from the combustion range to the fire extinguishing position. Increases the core up and down operation smoothly.

  When the vertical shaft 1 is rotated, the drive pin 6a drives the drive lever 7 while changing its position in the long hole 10a. In the present invention, the long hole 10a of the drive lever 7 is set to the maximum combustion position and the minimum. The range in which the drive pin 6a moves between the combustion positions is inclined so that the base 7a side becomes higher. With this configuration, the inclination angle of the long hole 10a can be made closer to the rotation angle of the drive pin 6a in the combustion range, so that the drive pin 6a can easily move along the inclination angle of the long hole 10a, and the core vertical axis in the combustion range The amount of movement of the drive lever 7 in the vertical direction with respect to the amount of rotation of 1 can be reduced. For this reason, the lead 5 moves little by little in response to the operation of the lead vertical shaft 1 in the combustion range, and a sudden change in the lead height is suppressed, making it easy to adjust the amount of combustion.

  On the other hand, the amount of vertical movement of the drive pin 6a increases from the minimum combustion position to the fire extinguishing position, and the long hole 10a intersects the movement direction of the drive pin 6a. The vertical movement amount of 6a and the vertical movement amount of the drive lever 7 are almost the same. In this range, the vertical movement of the core 5 relative to the rotation amount of the core vertical shaft 1 compared to the combustion range. The amount can be increased. For this reason, in the combustion range that requires fine adjustment of the core height, the amount of movement of the core 5 is suppressed, while on the other hand, smooth operation is possible in the range from the minimum combustion position that does not require fine adjustment to the fire extinguishing position. The operability at the time of raising and lowering the core could be improved.

  In FIG. 2, reference numeral 8 a denotes a stepped portion that reduces the diameter on the tip side in the middle of the rotating shaft 8, and the shaft hole 7 c of the drive lever 7 has a smaller diameter on the tip side than the stepped portion 8 a of the rotating shaft 8. The drive lever 7 is disposed between the shaft holding member 20 and the stepped portion 8a. Reference numeral 12 denotes a restricting means for restricting the position of the drive lever 7. In the embodiment, the restricting means 12 is constituted by the shaft holding member 20 and the step portion 8a, and the shaft 8 is mounted in the oil tank 2 to fix the shaft. When pressed toward the oil tank 2 by 15a, the drive lever 7 is sandwiched between the shaft holding member 20 and the step portion 8a in the oil tank 2, and the shaft holding member 20 and the step portion 8a are the rotation shafts of the drive lever 7. 8 is restricted from moving in the axial direction.

If the drive lever 7 moves in the axial direction of the rotary shaft 8 when the drive lever 7 rotates about the rotary shaft 8, extra resistance is generated in the drive lever 7 and hinders the core up / down operation. However, with the above-described configuration, the restricting means 12 can prevent the drive lever 7 from moving in the axial direction of the rotary shaft 8, so that the drive lever 7 can be prevented from moving unnecessarily and the core up / down operation can be performed smoothly. It has become possible to improve the operability when operating the core up and down.
Further, when the lead 5 is set at the combustion position, a force is applied to the lead 5 to lower the lead 5 from the set position in the lead-down direction by the weight of the lead 5, but the drive lever 7 is sandwiched by the restricting means 12. Since resistance is generated on the contact surface between the drive lever 7 and the restricting means 12 to prevent the drive lever 7 from rotating in the core lowering direction, the core 5 is lowered in the core lowering direction by the weight of the core 5. It became possible to obtain good combustion performance by maintaining the correct core height.

  In FIG. 2, reference numeral 23 denotes an engaging piece arranged in parallel with the distal end portion 7b of the drive lever 7 located between the core 5 and the drive plate 6 with a space therebetween. In the embodiment, the distal end of the distal end portion 7b is used as the base portion 7a. The core engaging portion 9 and the engaging portion 10 are provided on the distal end portion 7b of the drive lever 7 and the engaging piece 23, respectively. By forming a gap between the engagement piece 23 and the tip 7b of the drive lever 7, the drive plate 6 and the drive pin 6a can be in a positional relationship that does not interfere with the engagement pin 5a of the core 5. It is difficult to be limited by the mounting position of the components in the oil tank 2 and the placement efficiency of the components can be improved, and it can be realized without significant design changes such as changing the position of the core vertical shaft 1 or the shape of the oil tank 2. .

  Further, in the present invention, since the engagement piece 23 and the drive plate 6 are configured to contact each other, resistance is generated even on the contact surface between the drive plate 6 and the engagement piece 23, and the drive lever 7 is controlled by the restriction. Since both the resistance generated on the contact surface with the means 12 and the resistance generated on the contact surface between the drive plate 6 and the engagement piece 23, the rotation of the drive lever 7 in the core lowering direction can be prevented. When the lead 5 is set at the combustion position, the drive lever 7 does not rotate in the lead-down direction due to the weight of the lead 5, and the correct lead height can be reliably maintained.

1 core vertical shaft 2 oil tank 3 core inner cylinder 4 core outer cylinder 5 core 6 driving plate 6a driving pin 7 driving lever 7a base 7b tip 7c shaft hole 8 rotating shaft 9 core engaging part 10 engaging part 10a long hole 11 Interval 12 Restriction means

Claims (4)

A core vertical shaft (1) for performing the core vertical operation, a core inner cylinder (3) erected from the bottom plate of the oil tank (2), and a core outer cylinder (4) attached to the upper surface plate of the oil tank (2) The core (5) is mounted in the gap between the core inner cylinder (3) and the core outer cylinder (4) so as to be movable up and down, and the core (5) is moved up and down by the rotation of the core vertical axis (1). In a moving oil combustor,
A drive plate (6) attached to the inner end of the core vertical axis (1) and movable about the core vertical axis (1), and from the movable end of the drive plate (6) toward the core (5). A drive pin (6a) formed, and
A pair of engaging pins (5a) is formed on the side surface of the core (5),
A substantially U-shaped drive lever (7) in which the drive pin (6a) of the drive plate (6) and the engagement pin (5a) of the core (5) are engaged in the oil tank (2), A rotation shaft (8) for rotatably supporting the drive lever (7);
The drive lever (7) is attached to the rotating shaft (8) by a base portion (7a), and both end portions (7b) are positioned on the side of the core (5),
A core engaging portion (9) that engages with an engaging pin (5a) of the core (5) is provided at both of the distal end portions (7b), and the distal end portion (7b) on the side of the core vertical axis (1) is provided. Is provided with an engaging portion (10) with which the driving pin (6a) of the driving plate (6) is engaged,
The engaging portion (10) is composed of a long hole (10a) along the longitudinal direction of the drive lever (7),
The drive pin (6a) of the drive plate (6) drives the drive lever (7) while changing its position in the long hole (10a) when the core vertical axis (1) is rotated, and the drive lever (7) rotates about the rotating shaft (8) to move the core (5) up and down ,
The long hole (10a) is inclined so that the portion corresponding to the movement range of the drive pin (6a) between the maximum combustion position and the minimum combustion position becomes higher on the base (7a) side of the drive lever (7). An oil combustor core lifting device. A core vertical shaft (1) for performing the core vertical operation, a core inner cylinder (3) erected from the bottom plate of the oil tank (2), and a core outer cylinder (4) attached to the upper surface plate of the oil tank (2) The core (5) is mounted in the gap between the core inner cylinder (3) and the core outer cylinder (4) so as to be movable up and down, and the core (5) is moved up and down by the rotation of the core vertical axis (1). In a moving oil combustor,
A drive plate (6) attached to the inner end of the core vertical axis (1) and movable about the core vertical axis (1), and from the movable end of the drive plate (6) toward the core (5). A drive pin (6a) formed, and
A pair of engaging pins (5a) is formed on the side surface of the core (5),
A substantially U-shaped drive lever (7) in which the drive pin (6a) of the drive plate (6) and the engagement pin (5a) of the core (5) are engaged in the oil tank (2), A rotation shaft (8) for rotatably supporting the drive lever (7);
The drive lever (7) is attached to the rotating shaft (8) by a base portion (7a), and both end portions (7b) are positioned on the side of the core (5),
A core engaging portion (9) that engages with an engaging pin (5a) of the core (5) is provided at both of the distal end portions (7b), and the distal end portion (7b) on the side of the core vertical axis (1) is provided. Is provided with an engaging portion (10) with which the driving pin (6a) of the driving plate (6) is engaged,
The drive pin (6a) of the drive plate (6) drives the drive lever (7) when the core vertical axis (1) is rotated, and the drive lever (7) is centered on the rotary shaft (8). To move the core (5) up and down,
The rotating shaft (8) is arranged with a regulating means (12) with an interval (11), and the drive lever (7) is arranged with this interval (11),
The restricting means (12) clamps the drive lever (7), and the side surface of the drive plate (6) and the side surface of the tip end portion (7b) of the drive lever (7) come into contact with each other so that the drive lever (7 ) To regulate the position of the center of the oil combustor. The rotating shaft (8) is arranged with a regulating means (12) with an interval (11), and the drive lever (7) is arranged with this interval (11),
2. The oil combustor core lifting device according to claim 1, wherein the regulating means (12) clamps the drive lever (7) to regulate the position of the drive lever (7).   4. The oil combustor core lifting device according to claim 3, wherein a side surface of the drive plate (6) and a side surface of the tip end portion (7 b) of the drive lever (7) are in contact with each other.

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