JP4824995B2 - Tension adequacy determination device for winding members - Google Patents

Description

  The present invention relates to a tension suitability determination device for a winding member that determines the suitability of tension of a winding member of a winding transmission device.

  The drive belt used in the wrapping transmission device is inspected periodically to check the tension to prevent the machine performance from sagging due to wear or aging. ing. However, a relatively small belt or a single belt is measured with a commercially available tension gauge, but only one of the loose side belt and the tension side belt is measured, so the tension of the entire belt cannot be measured. . Further, when the tension gauge is not used, the operator pushes the belt with a finger or the like, and judges whether the tension is good or not based on the intuition of the belt displacement. As a result, the adjustment of the belt tension is determined by the subjectivity and experience of the operator, resulting in variations in quality and unnecessary adjustment work.

  A conventional rotating belt bending determination tool is attached to a first latching portion that is latched on the upper surface of the slack side belt, and is attached to the first latching portion so as to be movable in the vertical direction. Formed on the second latching portion, a second latching portion latched on the lower surface of the belt, a spring balance connected to the first latching portion to apply a load for bending the slack side belt, and the second latching portion A scale portion representing the belt deflection limit amount, and a determination plate that is attached to the scale portion so as to be movable in the vertical direction, and for judging whether or not the belt deflection is within an allowable range. (For example, refer to Patent Document 1). In such a conventional rotating belt bending determination tool, the bending limit amount of the belt for each winding transmission device is calculated, and the determination plate is slid on the scale corresponding to the bending limit amount to align the position. And in such a conventional rotating belt bending determination tool, when a predetermined tensile force is applied to the first latching portion by the spring balance and the upper surface of the tension side belt protrudes from the red portion of the determination plate, It is determined to replace the belt.

  A conventional belt tension measuring device includes a cylindrical body mounted on the upper surface of a tension side belt, a push bar pressed against the lower surface of the slack side belt, and a compression spring housed in the cylindrical body and compressed by the push bar. And a pointer that supports the amount of compression of the compression spring, and a display panel that displays the belt tension or the optimum adjustment range value instructed by the pointer (see, for example, Patent Document 2). In such a conventional belt tension measuring device, the belt tension can be adjusted while measuring the tension while being sandwiched between the tension side belt and the slack side belt.

JP-A-9-257466

Japanese Utility Model Publication No. 6-046338

  With the conventional rotating belt bending determination tool, after calculating the bending limit amount in advance according to the type of belt transmission device, etc., the determination plate is slid onto the scale corresponding to this bending limit amount and the load is applied after aligning the position. There is a need to. For this reason, in the conventional rotating belt bending determination tool, it is necessary to calculate the bending limit amount for each belt transmission device, and it is necessary to position the determination plate. There is a problem.

  In the conventional belt tension measuring device, it is necessary to measure by inserting the lower end of the cylindrical body on the upper surface of the tension side belt and inserting the tip of the push rod into the lower surface of the loose side belt. For this reason, in the conventional belt tension measuring device, when the cylindrical body and the push rod are sandwiched between the tension side belt and the slack side belt in an inclined state, the cylindrical body and the push rod are inclined by the belt tension. There is a problem that a load in the direction acts and the cylindrical body and the push rod come off from the belt.

  An object of the present invention is to provide a tension suitability determination device for a winding member that can easily determine the suitability of the tension of the winding member in a short time. Another object of the present invention is to provide a tension suitability determination device for a winding member that can determine the suitability of tension of the winding member in a stable state.

The present invention solves the above-mentioned problems by the solving means described below.
In addition, although the code | symbol corresponding to embodiment of this invention is attached | subjected and demonstrated, it is not limited to this embodiment.
As shown in FIGS . 6 , 8, 9, and 12, the invention of claim 1 determines whether the tension of the winding member (4) of the winding transmission device (1) is appropriate or not. A determination device, which is detachably mounted so as to be sandwiched between an inner surface (4a) on the loose side (4A) of the winding member and an inner surface (4a) on the tension side (4B) of the winding member. A first load acting portion (6) that is in contact with the inner surface on the loose side of the wrapping member and receives a load from the inner surface on the loose side; and an inner surface on the tight side of the wrapping member And the second load acting part (7) on which the load acts from the inner surface of the tension side, and is disposed between the first load acting part and the second load acting part, When there are multiple types of winding transmission devices, these winding transmission devices (1A ~ 1C) The tension appropriateness indicating portion (8; 25) for instructing the appropriateness of the tension of the winding member, and the inner surface on the tension side of the winding member and the second load acting portion are in close contact with each other. Furthermore, the tension suitability determination device (5) for the wrapping member includes a posture inclination portion (15) for inclining the posture of the second load acting portion within a range of a predetermined inclination angle (Δθ) .

According to a second aspect of the present invention, in the tension appropriateness determination device for a winding member according to the first aspect, as shown in FIG. 7, the tension appropriateness indicating portion is a tension of the winding member for each of the winding transmission devices. Is a tension suitability determination device for a winding member, characterized by indicating a suitable range (L ₁₁ ).

According to a third aspect of the present invention, in the tension suitability determining device for a winding member according to the second aspect, as shown in FIG. 10, the tension suitability indicating portion is a minimum reference value (F ₃₎ of the tension of the winding member. ) To the maximum reference value (F ₂ ) is initially set as the conforming range, and is a tension suitability determination device for the winding member.

A fourth aspect of the present invention, the tension appropriateness determination device winding member according to any one of claims 1 to 3, as shown in FIGS. 1 to 5, wherein the first load operating unit And a tension adjusting device for determining the suitability of tension of the winding member, characterized in that a tension adjusting section (18) for adjusting a distance between the second load acting section and the second load acting section is provided.

According to a fifth aspect of the present invention, in the tension suitability determination device for a winding member according to the fourth aspect , as shown in FIG. 11, a plurality of types of the first load acting portions (6A to 6C) having different lengths are provided. An apparatus for determining the suitability of tension of a winding member, comprising: a mounting portion (19) that, when present, is detachably mounted so that the first load acting portion can be replaced.

According to a sixth aspect of the present invention, in the tension suitability determination device for a winding member according to the fourth or fifth aspect , the second load acting portion having a plurality of different lengths exists when the second load acting portion is present. It is a tension suitability determination device for a winding member, characterized in that it includes a mounting portion that is detachably mounted so that the load acting portion can be replaced.

According to a seventh aspect of the invention, the tension appropriateness determination device winding member according to any one of claims 1 to 6, as shown in FIG. 12, the first and second load application A load detection unit (20) for detecting a load acting on the portion; and a tension suitability determination unit (24) for determining whether or not the tension of the winding member is appropriate based on a detection result of the load detection unit. The suitability indicating unit (25) is a tension suitability determining device for a winding member that instructs a determination result of the tension suitability determining unit.

According to an eighth aspect of the present invention, there is provided the information storage unit (23) for storing the tension member tension suitability determination device according to the seventh aspect as the adaptation range information from the minimum reference value to the maximum reference value of the tension of the winding member. And determining whether the tension of the winding member is appropriate based on the load detection value detected by the load detection unit and the compatible range information stored in the information storage unit. It is the tension appropriateness determination apparatus of the winding member characterized by the above.

  According to the present invention, the suitability of the tension of the winding member can be easily determined in a short time, and the suitability of the tension of the winding member can be determined in a stable state.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a state where a tension propriety determination device for a winding member according to a first embodiment of the present invention is attached to a winding transmission device. FIG. 2 is a front view of a tension suitability determination device for a winding member according to the first embodiment of the present invention. FIG. 3 is a side view of the tension suitability determination device for a winding member according to the first embodiment of the present invention. 4 is a cross-sectional view showing a state cut along line IV-IV in FIG. FIG. 5 is a cross-sectional view showing a state cut along line VV in FIG.

  A belt transmission 1 shown in FIG. 1 is a winding transmission that transmits the rotation of a driving shaft 2a to a driven shaft 3a, and includes belt wheels 2 and 3, a belt 4, and the like. As shown in FIG. 1, the belt transmission 1 wraps a bendable belt 4 around a belt wheel 2 and a belt wheel 3 arranged at a predetermined interval, and rotates the driving shaft 2a around the driven shaft 3a. introduce. A belt transmission device 1 shown in FIG. 1 transmits, for example, the power of an internal combustion engine installed under the floor of a railway vehicle to an air compressor or a generator for air conditioning.

  The belt wheels 2 and 3 are rotating bodies (pulleys) for hanging the belt 4. The belt wheel 2 is a driving vehicle that generates a driving force for driving the belt 4, and the belt wheel 3 is a driven vehicle driven by the belt 4. The belt wheel 2 is provided with a driving shaft 2a at the center of rotation, and the belt wheel 3 is provided with a driven shaft 3a at the center of rotation. On the outer peripheral surfaces of the belt wheels 2 and 3, for example, corrugated grooves that mesh with the belt 4 along the length direction are formed.

  The belt 4 is a winding member (winding medium node) wound around the belt wheel 2 and the belt wheel 3. The belt 4 shown in FIG. 1 is, for example, a cogged V belt that can be easily bent and can be used for a pulley having a relatively small diameter, and the inner surface 4a of the belt 4 is continuously formed in a corrugated shape in the length direction. The outer surface 4b of the belt 4 is continuously flat in the length direction. A tension (initial tension) for pressing the belt 4 against the belt wheels 2 and 3 is applied so that rotation can be transmitted by frictional force between the belt wheels 2 and 3. The belt 4 shown in FIG. 1 is a loose side belt 4A in which tension is reduced on the side fed from the belt wheel 2 (upper side shown in FIG. 1), and the side pulled on the belt wheel 2 (lower side shown in FIG. 1). The tension side belt 4B increases in tension.

  The tension suitability determination device 5 shown in FIGS. 1 to 5 is a device that determines the suitability of the tension of the belt 4 of the belt transmission device 1. The tension suitability determination device 5 can be detachably mounted so as to be sandwiched between the slack side belt 4A and the tension side belt 4B, and whether the tension of the belt 4 of the plurality of types of belt transmission devices 1 is within an appropriate range. Whether or not can be determined by one device. As shown in FIGS. 1 to 5, the tension suitability determination device 5 includes load action units 6, 7, a tension suitability instruction unit 8, a posture inclination unit 15, an interval adjustment unit 18, and the like.

  The load acting portion 6 is a portion where the load acts on the inner surface 4a of the slack side belt 4A and a load acts from the slack side belt 4A. The load acting portion 7 is a portion where the load acts from the tension side belt 4B in contact with the inner surface 4a of the tension side belt 4B. As shown in FIGS. 1 to 5, the load acting portions 6 and 7 include receiving portions 6 a and 7 a and support portions 6 b and 7 b.

  The receiving portion 6a is a portion that receives the inner surface 4a of the slack side belt 4A, and the receiving portion 7a is a portion that receives the inner surface 4a of the tension side belt 4B. As shown in FIGS. 3 and 5, the receiving portions 6 a and 7 a have a substantially U-shaped cross section so that the belt 4 can be held. For example, as shown in FIGS. 3 and 5, the receiving portions 6 a and 7 a have a length capable of holding these belts 4 simultaneously when a plurality of belts 4 are wound around the belt wheels 2 and 3 in parallel. Is formed. The support portion 6 b is a shaft-like portion that supports the receiving portion 6 a, and an upper end portion is connected to the lower surface of the receiving portion 6 a and a lower end portion is connected to the upper surface of the accommodating portion 9. The support portion 7 b is a shaft-like portion that supports the receiving portion 7 a and the posture inclined portion 15, a lower end portion is connected to the posture inclined portion 15, and an upper end portion is connected to the lower surface of the retaining portion 12. .

  The tension appropriateness instructing unit 8 is a part for instructing appropriateness of the tension of the belt 4 for each belt transmission device 1 when a plurality of types of belt transmission devices 1 exist. As shown in FIGS. 1 to 5, the tension suitability indication unit 8 is disposed between the load application unit 6 and the load application unit 7, and indicates the adaptation range of the tension of the belt 4 for each belt transmission device 1. To do. For example, the tension suitability indication unit 8 is initially set as a fit range from a minimum reference value to a maximum reference value as a reference when determining the suitability of the tension of the belt 4. The tension suitability instruction unit 8 includes a storage unit 9 shown in FIGS. 1 to 5, a movable unit 10 shown in FIGS. 4 and 5, an elastic unit 11, a retaining portion 12 shown in FIGS. 1 and FIG. 2 and the appropriateness instruction | indication parts 13A-13C, the parameter | index part 14, etc. are provided. The tension suitability indicator 8 has a structure that approximates a spring balance that indicates the magnitude of the load.

  The accommodating portion 9 is a portion that accommodates the movable portion 10 and the elastic portion 11. As shown in FIGS. 4 and 5, the accommodating portion 9 is a cylindrical member that is formed in a predetermined length and has a circular cross section so that it can be easily grasped by an operator, and is shown in FIGS. 2 and 5. A guide portion 9a is provided. The guide portion 9a is a portion that guides the indicator portion 14 so as to be movable. The guide portion 9a is formed to have a predetermined length in the length direction of the housing portion 9 and penetrates the housing portion 9 as shown in FIGS. It is a hole.

  The movable part 10 is a part that reciprocates within the accommodating part 9. As shown in FIGS. 4 and 5, the movable portion 10 is a cylindrical member having an outer diameter smaller than the inner diameter of the accommodating portion 9 and a circular cross section, and a gap portion is formed between the inner peripheral surface of the accommodating portion 9 and the movable portion 10. It is movably accommodated in the accommodating portion 9 so as to form. The movable part 10 can be reciprocated integrally with the load acting part 7.

  The elastic portion 11 is a portion that is elastically deformed by a load acting on the load acting portions 6 and 7. As shown in FIGS. 4 and 5, the elastic portion 11 is an urging member such as a compression coil spring having an outer diameter smaller than the inner diameter of the housing portion 9 and receiving a compression force. It is accommodated in the accommodating portion 9 so as to be stretchable so as to form a gap portion therebetween. The elastic part 11 has an upper end in contact with the accommodating part 9 and a lower end in contact with the movable part 10, and expands and contracts according to the reciprocating motion of the movable part 10.

  The retaining portion 12 is a portion that prevents the movable portion 10 and the elastic portion 11 from coming out of the accommodating portion 9. The retaining portion 12 is a cap-shaped member that closes the lower end portion of the accommodating portion 9, and is screwed into the lower end portion of the accommodating portion 9 and is detachably mounted.

FIG. 6 is a conceptual diagram for explaining the function of the suitability indicator of the tension suitability indicator in the tension suitability determination device for a winding member according to the first embodiment of the present invention. ) Is a conceptual diagram in the case of determining the appropriateness of the tension of the belts of three types of belt transmission devices having different distances between the belts. FIG. 7 is an enlarged plan view showing a tension suitability indicator in the tension suitability determining device for a winding member according to the first embodiment of the present invention. In the following, as shown in FIG. 6, the belts of the three types of belt transmission devices 1A to 1C having different distances (hereinafter referred to as inter-belt distances) H _{1 to} H ₃ between the slack side belt 4A and the tension side belt 4B. A case where the suitability of the tension of 4 is determined will be described as an example.

The suitability indication units 13A to 13C are portions for instructing suitability of the tension of the belt 4 for each of the belt transmission devices 1A to 1C. As shown in FIG. 6 (A), the suitability instruction unit 13A indicates the adaptation range of the tension of the belt 4 of the belt transmission device 1A. As shown in FIG. 6 (B), the suitability instruction unit 13B indicates the adaptation range of the tension of the belt 4 of the belt transmission device 1B. As shown in FIG. 6C, the suitability indication unit 13C indicates the adaptation range of the tension of the belt 4 of the belt transmission device 1C. The suitability indication units 13A to 13C are arranged along the length direction of the guide portion 9a so that the operator can easily see in a dark place or a narrow place. For example, the suitability indication unit 13A is displayed in red. 13B is colored in blue, and the suitability indicating unit 13C is colored in yellow. As shown in FIG. 7, the lengths L _{11 to} L ₁₃ of the suitability indication units 13A to 13C indicate the adaptation range of the tension of the belt 4 for each of the belt transmission devices 1A to 1C. Compliance instruction unit 13A, for example, as shown in FIG. 7, when determining the appropriateness of the tension of the belt 4 belt transmission device 1A, the index is within the range of the length L ₁₁ when the tension of the belt 4 is appropriate When the tension of the belt 4 is not appropriate, the indicator 14 indicates that the length L ₁₁ is out of the range. The suitability indication units 13A to 13C are, for example, adhesive tapes that can be detachably attached to the outer peripheral surface of the storage unit 9, and when the range of tension of the belt 4 is changed, it is shifted from the original position and reattached. Is possible.

  The indicator part 14 is a part that indicates whether or not the tension of the belt 4 is appropriate. As shown in FIGS. 2, 5, and 7, the indicator portion 14 is a plate-like member that fits into the guide portion 9a so as to be slidable along the guide portion 9a. The indicator portion 14 is larger than the width of the guide portion 9a. It is formed slightly narrower and thicker than the accommodating portion 9. As shown in FIGS. 2 and 7, the indicator portion 14 is colored with a rhombus engraving formed on the surface so that the operator can easily see it. As shown in FIGS. 2, 4, and 7, the indicator portion 14 includes set screws 14 a and 14 b that are screwed into the outer peripheral surface of the movable portion 10 and fixed to the movable portion 10. Since the indicator portion 14 is allowed to move in the length direction of the guide portion 9a, the indicator portion 14 can reciprocate integrally with the movable portion 10, but moves in a direction intersecting the length direction of the guide portion 9a. Therefore, the load acting part 7 and the movable part 10 are prevented from rotating around the central axis.

  FIG. 8 is a conceptual diagram for explaining the function of the tilt angle varying unit in the tension suitability determining device for a winding member according to the first embodiment of the present invention. FIG. 9 is a cross-sectional view of the tilt angle variable unit in the tension suitability determining device for a winding member according to the first embodiment of the present invention.

  The posture inclination portion 15 is a portion that inclines the posture of the load acting portion 7 within a range of a predetermined inclination angle Δθ so that the load acting portion 7 and the inner surface 4a of the belt 4 are in close contact with each other. When the posture inclination portion 15 is mounted so as to sandwich the tension suitability determination device 5 between the slack side belt 4A and the tension side belt 4B, the inner surface 4a of the tension side belt 4B and the receiving portion 7a of the load acting portion 7 are provided. The posture of the receiving portion 7a is inclined so that the two are in close contact with each other. The posture inclined portion 15 causes the inner surface 4a of the tension belt 4B and the receiving portion 7a of the load acting portion 7 to closely contact each other, and a load is applied to the load acting portion 7 by the tension of the belt 4 in the lateral direction. The part 7 is prevented from coming off. The attitude | position inclination part 15 is provided with the bearing part 16, the rotation angle control part 17, etc., as shown in FIGS.

  The bearing portion 16 is a portion that rotatably connects the receiving portion 7a and the support portion 7b. As shown in FIGS. 4 and 5, the bearing portion 16 has a pin passing through the upper end portion of the receiving portion 7 a and the lower end portion of the supporting portion 7 b, and rotatably connects the receiving portion 7 a and the supporting portion 7 b. is doing.

  The rotation angle restricting portion 17 is a portion that restricts the rotation angle between the receiving portion 7a and the support portion 7b within a predetermined range. As shown in FIG. 9, the rotation angle restricting portion 17 is a flat chamfered portion formed at both side corners of the lower end portion of the support portion 7b. As shown in FIG. 9A, the rotation angle restricting portion 17 is configured such that when the upper surface of the receiving portion 7a and the lower surface of the supporting portion 7b are parallel to each other and a gap δ is formed between them, the receiving portion It is away from the upper surface of 7a. On the other hand, as shown in FIG. 9B, when the receiving portion 7a and the support portion 7b are relatively rotated by the inclination angle Δθ, the rotation angle restricting portion 17 contacts the upper surface of the receiving portion 7a and functions as a stopper. Then, the rotation angle between the receiving portion 7a and the support portion 7b is limited within a predetermined range.

The interval adjustment unit 18 is a part that adjusts the interval between the load application unit 6 and the load application unit 7. As shown in FIGS. 1 to 5, the interval adjusting portion 18 is formed in the male screw portion 18 a formed within a predetermined range from the lower end portion of the support portion 6 b and in the accommodating portion 9 as shown in FIGS. 4 and 5. As shown in FIGS. 1 to 5, a female screw portion 18b meshing with the male screw portion 18a and a nut 18c attached to the male screw portion 18a are provided to prevent the male screw portion 18a and the female screw portion 18b from loosening. Interval adjusting unit 18, so that the belt distance H ₁ to H ₃ adaptable to different kinds of belt transmission device 1A-1C, the male screw portion 18a and to adjust the engagement of the female thread portion 18b and the receiving portion 6a And the distance (height) between the receiving portion 7a and the receiving portion 7a are varied.

Next, an initial setting method of the suitability indicating unit in the tension suitability determining device for a winding member according to the first embodiment of the present invention will be described.
FIG. 10 is a conceptual diagram for explaining an initial setting method for the tension suitability determination device for a winding member according to the first embodiment of the present invention, and FIG. 10 (A) explains an allowable error range of measurement points. FIG. 10B is a conceptual diagram for explaining a method for setting a maximum reference value, and FIG. 10C is a conceptual diagram for explaining a method for setting a minimum reference value. . The following describes a method of initializing when determining the tension appropriateness of the belt between the distance H ₁ of the belt transmission device 1A of the belt 4 by the tension appropriateness determination device 5.

10 the center point x ₁ shown in (A) is an intermediate point between the driving shaft 2a and the driven shaft 3a, the position x ₂ in terms of off-center point x ₁ to the driven shaft 3a side distance + a only The position x ₃ is a point shifted from the center point x ₁ by a distance −a toward the driving shaft 2a. The center line L ₁ is a line passing through the center point x ₁ , the straight line L ₂ is a line passing through the position x ₂ , and the straight line L ₃ is a line passing through the position x ₃ . Hereinafter, as shown in FIG. 10, the direction in which the belt-to-belt distance H ₁ increases is described as +.

(Interval adjustment operation)
By adjusting the engagement of the male screw portion 18a and the female screw portion 18b shown in FIGS. 4 and 5, so as to be corresponding to the belt transmission device 1A~1C belt distance H ₁ to H _3, receiving a receiving portion 6a The distance to the portion 7a is adjusted, and the length of the tension suitability determination device 5 is determined to be a predetermined length. When actually determining the appropriateness of the tension of the belt 4, it is ideal to determine whether the tension of the belt 4 is appropriate by attaching the tension appropriateness determination device 5 to the center point x _1. There is a possibility that the operator will wear the tension suitability determination device 5 deviating from ₁ . For this reason, as shown in FIG. 10A, it is necessary to set an allowable range of the mounting position of the tension suitability determination device 5, and the error range of the measurement point at the time of actual tension suitability determination is set as the distance ± a. The The distance ± a can be set to an arbitrary length, but is usually set to about 10 mm.

(Maximum reference value and minimum reference value setting operation)
First, the maximum allowed a proper value of the tension of the belt 4 of the belt transmission device 1A (tension limit) f ₂ and the allowable minimum value (tension lower limit) is determined as f _3. Next, as shown in FIG. 10B, the tension of the belt 4 is adjusted to the allowable maximum value f ₂ while measuring the tension of the belt 4 at the center point x ₁ . Thereafter, by mounting the tension appropriateness determination device 5 to the position x _2, the position indicator unit 14 instructs shown in FIGS. 2 and 7, the maximum reference value F ₂ as a reference in determining the appropriateness of tension To do. Next, as shown in FIG. 10C, the tension of the belt 4 is adjusted to the allowable minimum value f ₃ while measuring the tension of the belt 4 at the center point x ₁ . After that, the tension suitability determination device 5 is mounted at the position x ₃ , and the position indicated by the index unit 14 shown in FIGS. 2 and 7 is set to the minimum reference value F ₃ that serves as a reference for determining the suitability of tension. To do. Then, for example, as shown in FIG. 7, attaching the appropriateness instruction unit 13A corresponding to the length L ₁₁ from the minimum reference value F ₃ to the maximum reference value F ₂ on the outer peripheral surface of the container 9. As a result, the appropriateness of the tension of the belt 4 of the belt transmission device 1A can be determined by the appropriateness determination device 5. By the same method, the appropriateness indicating units 13B and 13C are determined for the belt transmission devices 1B and 1C, and the appropriateness of the tension of the belt 4 of the belt transmission devices 1B and 1C can be determined by one tension appropriateness determination device 5. .

Next, a tension suitability determination method of the tension suitability determination device for a winding member according to the first embodiment of the present invention will be described.
As shown in FIG. 6 (A), after the receiving portion 6a of the load acting portion 6 is pressed and brought into close contact with the inner surface 4a of the slack side belt 4A of the belt transmission device 1A, the tension side belt 4B of the belt transmission device 1A is pressed. The receiving portion 7a of the load acting portion 7 is pressed against the inner surface 4a. At this time, when the diameters of the belt wheels 2 and 3 are different, the slack side belt 4A and the tension side belt 4B are inclined, so that a lateral load acts on the receiving portions 6a and 7a and the tension suitability determination device 5 There is a possibility that it will be released in the lateral direction by the tension of 4. As shown in FIG. 8, since the receiving portion 7a and the support portion 7b are rotatably connected by the bearing portion 16, the receiving portion 7a is in close contact with the inner surface 4a of the tension side belt 4B, and the tension suitability determination device. 5 is prevented from falling laterally due to the tension of the belt 4.

As shown in FIG. 6A, when the tension suitability determination device 5 is mounted between the slack side belt 4A and the tension side belt 4B, a load acts on the load acting portions 6 and 7, and FIG. The movable part 10 shown in FIG. 5 moves in the accommodating part 9 and the elastic part 11 is compressed. As a result, the indicator portion 14 slides along the guide portion 9a integrally with the movable portion 10, and the indicator portion 14 is balanced when the load acting on the load acting portions 6 and 7 and the biasing force of the elastic portion 11 are balanced. Stops. As shown in FIG. 7, suitability indicators 13 </ b> A to 13 </ b> C are attached in advance to the outer peripheral surface of the housing 9. Thus, for example, when the index portion 14 is pointing within the range of the length L ₁₁ of the appropriateness instruction unit 13A, the tension of the belt 4 belt transmission device 1A is determined on the operator is appropriate, indicator unit 14 when instructs the outside of the length L ₁₁ of the appropriateness instruction unit 13A, the tension of the belt transmission device 1A of the belt 4 is determined in the operator not proper.

The tension suitability determination device for a winding member according to the first embodiment of the present invention has the following effects.
(1) In the first embodiment, when there are a plurality of types of belt transmission devices 1A to 1C, the tension appropriateness instructing unit 8 instructs the appropriateness of the tension of the belt 4 for each of the belt transmission devices 1A to 1C. . For this reason, the tension suitability determination device 5 is mounted between the loose side belt 4A and the tension side belt 4B, and the tension suitability determination device determines whether the tension of the belt 4 of the various types of belt transmission devices 1A to 1C is appropriate. 5 can be easily determined in a short time. As a result, it is possible to reduce adjustment work such as calculation of the deflection limit amount and alignment of the judgment plate for each of the belt transmission devices 1A to 1C, such as a conventional rotary belt deflection judgment tool, and shorten the work time. Can be planned.

(2) In the first embodiment, the tension appropriateness instructing unit 8 indicates the tension adaptability range of the belt 4 for each of the belt transmission devices 1A to 1C. Therefore, even when the tension appropriateness determination device 5 is mounted on the measuring point in slightly offset error range from the center line L ₁ shown in FIG. 10, it determines the appropriateness of the tension of the belt 4 within the allowable range can do. For example, as shown in FIG. 10, a case where the tension appropriateness determination device 5 is mounted in the range from the center point x ₁ distance ± a, between the minimum reference value F ₃ to the maximum reference value F ₂ In some cases, it can be determined that the tension of the belt 4 is an appropriate value. In addition, it is possible to prevent variations in determination by the operator and improve the quality control of the belt 4.

(3) In the first embodiment, the tension reference value indicating unit 8 is initially set as the applicable range from the minimum reference value F ₃ to the maximum reference value F ₂ of the tension of the belt 4. For this reason, it is possible to instantaneously determine whether the tension of the belt 4 is appropriate after the initial setting by initializing the minimum reference value F ₃ to the maximum reference value F ₂ as an appropriate range in advance.

(4) In the first embodiment, the tension suitability instruction unit 8 is disposed between the load application unit 6 and the load application unit 7. For this reason, even if the belt transmission devices 1A to 1C are installed in a limited space in the work space, the tension suitability indicator 8 is located in the space between the slack side belt 4A and the tension side belt 4B. Therefore, even if the vicinity of the belt transmission devices 1A to 1C is dense, an operator can easily determine visually.

(5) In this first embodiment, the posture of the load acting portion 7 is set within a predetermined inclination angle Δθ so that the load acting portion 7 and the inner surface 4a of the belt 4 are in close contact with each other. Tilt. For this reason, even if the slack side belt 4A and the tension side belt 4B are not parallel because the diameters of the belt wheels 2 and 3 are different, it is determined whether the tension is appropriate between the slack side belt 4A and the tension side belt 4B. The apparatus 5 can be mounted stably. As a result, it is possible to prevent the tension suitability determination device 5 from being bounced off due to the tension of the belt 4 and falling off as much as possible.

(6) In the first embodiment, the interval adjusting unit 18 adjusts the interval between the load application unit 6 and the load application unit 7. Therefore, it is possible to have the belt distance H ₁ to H ₃ to correspond to different types of belt drive 1A~1C determining the tension appropriateness of the belt 4.

(Second Embodiment)
FIG. 11: is a front view which fractures | ruptures and shows a part of tension | tensile_strength suitability determination apparatus of the winding member which concerns on 2nd Embodiment of this invention. In the following, the same parts as those shown in FIGS. 1 to 10 are denoted by the same reference numerals and detailed description thereof is omitted.
The tension suitability determination device 5 shown in FIG. 11 includes a mounting portion 19, and when there are a plurality of types of load acting portions 6 </ b> A to 6 </ b> C having different lengths, the loading portion 19 has these load acting portions 6 </ b> A to 6 </ b> C. It is a part which attaches | detaches so that replacement | exchange is possible. The mounting portion 19 is a recess into which the lower end portion of the support portion 6 b is fitted, and is formed at the upper end portion of the accommodating portion 9. In the second embodiment, a plurality of types of load acting portions 6A to 6C having different lengths are prepared in advance according to the suitability indicating portions 13A to 13C, and the load acting portions 6A to 6A having the optimum length are prepared as necessary. 6C can be selected and replaced easily. As a result, the height of the tension suitability determination device 5 can be more easily adjusted by the mounting unit 19 functioning as an adapter, compared to the interval adjusting unit 18 of the first embodiment.

(Third embodiment)
FIG. 12 is a configuration diagram of a tension suitability determination device for a winding member according to a third embodiment of the present invention.
The tension suitability determination device 5 shown in FIG. 12 automatically determines the suitability of the tension of the belt 4 for each of the belt transmission devices 1A to 1C. As shown in FIG. 12, the tension suitability determination device 5 includes a load detection unit 20, a mode selection unit 21, an information input unit 22, an information storage unit 23, a tension suitability determination unit 24, and a tension suitability determination unit 25. And a control unit 26 and the like.

  The load detection unit 20 is a part that detects a load acting on the load application units 6 and 7. The load detection unit 20 is, for example, a mechanical / electrical conversion unit such as a strain gauge that converts a mechanical displacement into an electric signal and outputs the electric signal, and an electric signal (load detection value) corresponding to the load acting on the load application units 6 and 7. ) Is output to the control unit 26.

  The mode selection unit 21 is a part for selecting an initial setting mode for initially setting the tension suitability determination device 5 and a tension suitability determination mode for determining the suitability of tension by the tension suitability determination device 5. The mode selection unit 21 is, for example, a slide type switch that switches between an initial setting mode and a tension suitability determination mode by an operator's manual operation.

The information input unit 22 is a part for inputting various information related to the tension suitability determination device 5. The information input unit 22 is, for example, a model number for identifying the belt transmission devices 1A to 1C shown in FIG. 6, a distance between the belts (length of the tension suitability determination device 5) H _{1 to} H ₃ , and a distance shown in FIG. (Error range) This is a push button type switch for inputting model information related to ± a or the like by manual operation of an operator.

The information storage unit 23 is a part that stores various information related to the tension suitability determination device 5. The information storage unit 23 stores, for example, model information input by the information input unit 22 and adaptation range information regarding the adaptation range from the minimum reference value F ₃ to the maximum reference value F ₂ of the tension of the belt 4 illustrated in FIG. Memory.

  The tension suitability determination unit 24 is a part that determines the suitability of the tension of the belt 4 based on the detection result of the load detection unit 20. The tension suitability determination unit 24 determines the suitability of the tension of the belt 4 based on the load detection value detected by the load detection unit 20 and the adaptation range information stored in the information storage unit 23.

  The tension suitability instruction unit 25 is a part that instructs the determination result of the tension suitability determination unit 24. The tension suitability instruction unit 25 is, for example, a display device that displays the suitability of the tension of the belt 4 with characters, figures, symbols, or the like, or a warning device that warns with sound.

  The control unit 26 is a central processing unit (CPU) that controls various operations related to the tension suitability determination device 5. For example, the control unit 26 stores the information input by the information input unit 22 in the information storage unit 23, instructs the tension suitability determination unit 24 to determine whether the belt 4 is tensioned properly, or the tension suitability instruction unit 25. Instruct the judgment result.

Next, the operation of the tension suitability determining device for a winding member according to the third embodiment of the present invention will be described.
FIG. 13 is a flowchart for explaining the operation of the tension suitability determining device for a winding member according to the third embodiment of the present invention. Hereinafter, the operation of the control unit 26 will be mainly described.
In step (hereinafter referred to as S) 100 shown in FIG. 13, the control unit 26 determines whether or not the initial setting mode is selected. The control unit 26 determines whether or not the operator has operated the mode selection unit 21 shown in FIG. 12 to select the initial setting mode. When the initial setting mode is selected, the process proceeds to S200. When the initial setting mode is not selected (when the tension suitability determination mode is selected), the process proceeds to S300.

  In S200, the control unit 26 starts an initial setting process. When the initial setting mode is selected, the control unit 26 starts a series of initial setting processes.

  In S300, the control unit 26 executes tension suitability determination processing. When the tension suitability determination mode is selected, the control unit 26 starts a series of tension suitability determination processing.

FIG. 14 is a flowchart for explaining an initial setting process of the tension suitability determination device for a winding member according to the third embodiment of the present invention.
In S210 shown in FIG. 14, the control unit 26 determines whether or not model information has been input. The control unit 26 determines whether or not the operator has operated the information input unit 22 to input the model information. When the model information is input, the process proceeds to S220. When the model information is not input, the model information is input. Repeat judgment until

  In S220, the control unit 26 instructs the information storage unit 23 to store the model information. When model information is input from the information input unit 22 to the control unit 26, the model information is output to the information storage unit 23 by the control unit 26, and the model information is stored in the information storage unit 23.

In S230, the control unit 26 determines whether or not the fitting range information is input. As shown in FIG. 10B, when the tension of the belt 4 is adjusted to the allowable maximum value f ₂ at the center point x ₁ , the load detection value detected by the load detection unit 20 at the position x ₂ is the maximum reference value F. ₂ is output to the control unit 26. Further, as shown in FIG. 10C, when the tension of the belt 4 is adjusted to the allowable minimum value f ₃ at the center point x ₁ , the load detection value detected by the load detection unit 20 at the position x ₃ is the minimum reference. The control unit 26 outputs the value F ₃ . When the adaptation range information from the minimum reference value F ₃ to the maximum reference value F ₂ is input to the control unit 26, the process proceeds to S240, and when the adaptation range information is not input to the control unit 26, the adaptation range information is input. Repeat judgment.

In S240, the control unit 26 instructs the information storage unit 23 to store the compatible range information. When the fit range information from the minimum reference value F ₃ to the maximum reference value F ₂ is input from the load detection unit 20 to the control unit 26, the control unit 26 outputs the fit range information to the information storage unit 23, and this fit range information Is stored in the information storage unit 23.

  In S250, the control unit 26 determines whether other model information has been input. For example, the control unit 26 determines whether or not the operator has operated the information input unit 22 to input the model information of the belt transmission devices 1B and 1C other than the belt transmission device 1A. When other model information is input, the process returns to S210, and the model information and the compatible range information of the belt transmission devices 1B and 1C are stored in the information storage unit 23. When no other model information is input, the series of processes is terminated. .

FIG. 15 is a flowchart for explaining the tension suitability determination process of the tension suitability determining device for a winding member according to the third embodiment of the present invention.
In S310 shown in FIG. 15, the control unit 26 determines whether or not model information is input. The control unit 26 determines whether or not the operator has operated the information input unit 22 to input the model information. When the model information is input, the process proceeds to S320. When the model information is not input, the model information is input. Repeat judgment until

  In S <b> 320, the control unit 26 reads the matching range information from the information storage unit 23. When model information is input from the information input unit 22 to the control unit 26, the control unit 26 searches the information storage unit 23 using the model information as a search key. As a result, the control unit 26 reads out the appropriate range information corresponding to each belt transmission device 1 </ b> A to 1 </ b> C from the information storage unit 23, and the appropriate range information is output to the tension suitability determination unit 24.

  In S330, the control unit 26 determines whether or not a load detection value is input. For example, when the tension suitability determination device 5 is mounted between the slack side belt 4A and the tension side belt 4B of the belt transmission device 1A, the load detection unit 20 detects the load acting on the load application units 6 and 7. As a result, the detection result is input to the control unit 26 as a load detection value, and the control unit 26 outputs the load detection value to the tension suitability determination unit 24. When the load detection value is input to the control unit 26, the process proceeds to S340, and when the load detection value is not input, the determination is repeated until the load detection value is input.

  In S340, the control unit 26 instructs the tension suitability determination unit 24 to determine whether the tension of the belt 4 is appropriate. As a result, the conformity range information and the load detection value are collated by the tension suitability determination unit 24 to determine whether or not the load detection value is within the conformance range, and the determination result is output to the control unit 26 as determination result information. To do.

  In S350, the control unit 26 instructs the tension suitability indicating unit 25 to instruct whether the tension of the belt 4 is appropriate. When determination result information is input from the tension suitability determination unit 24 to the control unit 26, the control unit 26 outputs the determination result information to the tension suitability instruction unit 25, and the tension suitability instruction unit 25 displays the determination result on the screen of the display device. Or generate a warning with sound from the speaker of the warning device.

In addition to the effects of the first embodiment and the second embodiment, the tension suitability determination device for a winding member according to the third embodiment of the present invention has the following effects.
(1) In the third embodiment, the load detection unit 20 detects the load acting on the load application units 6 and 7, and the tension appropriateness determination unit 24 determines the appropriateness of the tension of the belt 4 based on the detection result. The tension suitability instruction unit 25 instructs this determination result. For this reason, the propriety of the tension | tensile_strength of the belt 4 for every belt transmission apparatus 1A-1C can be determined automatically easily.

(2) In the third embodiment, the information storage unit 23 stores the minimum reference value F ₃ to the maximum reference value F ₂ of the tension of the belt 4 as the applicable range information, and the load detection value detected by the load detection unit 20. And the suitability determination unit 24 determines whether or not the tension of the belt 4 is appropriate based on the fit range information stored in the information storage unit 23. For this reason, model information, compatibility range information, and the like are recorded in advance by using together with a digital device or the like, and the tension of the belts 4 of the multiple belt transmission devices 1A to 1C is determined by one tension suitability determination device 5. be able to.

(Other embodiments)
The present invention is not limited to the embodiment described above, and various modifications or changes can be made as described below, and these are also within the scope of the present invention.
(1) In this embodiment, the case where the winding transmission device is the belt transmission device 1A to 1C has been described as an example. However, the present invention can also be applied to a case of a rope transmission device or a chain transmission device. it can. In this embodiment, the case where the belt 4 is a cogged V belt has been described as an example. However, the present invention can also be applied to a case of a normal flat belt, a V belt, or the like. Furthermore, in this embodiment, the case where two belts 4 are wound in parallel has been described as an example. However, the present invention can also be applied to a case where three or more belts 4 are wound in parallel.

(2) In this embodiment has been described taking a case of determining the tension appropriateness of the belt between the distance H ₁ to H ₃ is three different belt drive 1A~1C belt 4 as an example, of a belt type The present invention can also be applied to cases where the values are different. Further, in this embodiment, the case where the suitability instruction units 13A to 13C are detachable adhesive tapes has been described as an example. However, the suitability instruction units 13A to 13C are engraved and colored by engraving the outer peripheral surface of the storage unit 9. It can also be formed. Furthermore, in this embodiment, the case where the suitability instruction units 13A to 13C are associated with the belt transmission devices 1A to 1C has been described as an example, but the number of belt transmission devices 1A to 1C is four or more. It is also possible to add three or more suitability instruction units 13A to 13C.

(3) In this embodiment, the case where the posture inclination portion 15 inclines the posture of the load acting portion 7 within the range of the predetermined inclination angle Δθ has been described as an example, but only the load acting portion 6 or the load acting portion is described. Both postures 6 and 7 can be inclined. In the second embodiment, the case where a plurality of types of load acting portions 6 having different lengths are made detachable so as to be exchangeable by the mounting portion 19 has been described as an example, but only the load acting portion 7 or Both of the load acting parts 6 and 7 can be made detachable.

It is a front view which shows the state which mounted | wore the belt transmission with the tension | tensile_strength suitability determination apparatus of the winding member which concerns on 1st Embodiment of this invention. It is a front view of the tension propriety determination apparatus of the winding member which concerns on 1st Embodiment of this invention. It is a side view of the tension propriety determination apparatus of the winding member which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the state cut | disconnected by the IV-IV line of FIG. It is sectional drawing which shows the state cut | disconnected by the VV line | wire of FIG. It is a conceptual diagram for demonstrating the function of the suitability instruction | indication part of the tension suitability instruction | indication part in the tension | tensile_strength suitability determination apparatus of the winding member which concerns on 1st Embodiment of this invention, (A)-(C) is distance between belts. It is a conceptual diagram in the case of determining the propriety of the belt tension of three different types of belt transmission devices. It is a top view which expands and shows the tension suitability instruction | indication part in the tension suitability determination apparatus of the winding member which concerns on 1st Embodiment of this invention. It is a conceptual diagram for demonstrating the function of the inclination angle variable part in the tension | tensile_strength suitability determination apparatus of the winding member which concerns on 1st Embodiment of this invention. It is sectional drawing of the inclination angle variable part in the tension | tensile_strength propriety determination apparatus of the winding member which concerns on 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a conceptual diagram for demonstrating the initial setting method of the tension | tensile_strength suitability determination apparatus of the winding member which concerns on 1st Embodiment of this invention, (A) is a conceptual diagram for demonstrating the error tolerance | permissible_range of a measurement point. (B) is a conceptual diagram for explaining a method for setting a maximum reference value, and (C) is a conceptual diagram for explaining a method for setting a minimum reference value. It is a front view which fractures | ruptures and shows a part of tension | tensile_strength suitability determination apparatus of the winding member which concerns on 2nd Embodiment of this invention. It is a block diagram of the tension propriety determination apparatus of the winding member which concerns on 3rd Embodiment of this invention. It is a flowchart for demonstrating operation | movement of the tension propriety determination apparatus of the winding member which concerns on 3rd Embodiment of this invention. It is a flowchart for demonstrating the initial setting process of the tension | tensile_strength suitability determination apparatus of the winding member which concerns on 3rd Embodiment of this invention. It is a flowchart for demonstrating the tension suitability determination process of the tension suitability determination apparatus of the winding member which concerns on 3rd Embodiment of this invention.

Explanation of symbols

1,1A-1C Belt transmission (wrapping transmission)
2,3 Belt wheel 2a Drive shaft 3a Drive shaft 4 Belt (winding member)
4A Loose side belt 4B Tension side belt 4a Inner surface 5 Tension suitability determination device 6, 6A to 6C Load acting part (first load acting part)
7 Load acting part (second load acting part)
DESCRIPTION OF SYMBOLS 8 Tension appropriateness instruction | indication part 9 Storage part 10 Movable part 11 Elastic part 12 Retaining part 13A-13C Appropriateness instruction | indication part 14 Index | 21 Mode selection unit 22 Information input unit 23 Information storage unit 24 Tension suitability determination unit 25 Tension suitability instruction unit 26 Control unit Δθ Inclination angle ± a Distance (error range)
F ₂ maximum reference value F ₃ minimum reference value H _{1 to} H ₃ belt distance L _{11 to} L ₁₃ length (conformity range)

Claims (8)

It is a tension suitability determination device for a winding member that determines the suitability of tension of a winding member of a winding transmission device,
It can be detachably mounted so as to be sandwiched between an inner surface on the loose side of the winding member and an inner surface on the tension side of the winding member,
A first load acting portion that contacts a loose side inner surface of the winding member and a load acts from the loose side inner surface;
A second load acting portion in contact with an inner surface on the tension side of the winding member, and a load acting from the inner surface on the tension side;
When there are a plurality of types of the winding transmission devices arranged between the first load application unit and the second load application unit, the tension of the winding member for each of these winding transmission devices A tension suitability indicating section for instructing whether or not
A posture inclined portion for inclining the posture of the second load acting portion within a range of a predetermined inclination angle so that the inner surface on the tension side of the winding member and the second load acting portion are in close contact with each other;
A tension suitability determination device for a winding member comprising: In the tension | tensile_strength suitability determination apparatus of the winding member of Claim 1,
The tension suitability indication unit indicates an adaptation range of tension of the winding member for each winding transmission device;
An apparatus for determining the suitability of tension of a winding member. In the tension | tensile_strength suitability determination apparatus of the winding member of Claim 2,
The tension suitability indication unit is initially set as the adaptation range from the minimum reference value to the maximum reference value of the tension of the winding member,
An apparatus for determining the suitability of tension of a winding member. In the tension | tensile_strength suitability determination apparatus of the winding member of any one of Claim 1- Claim 3 ,
An interval adjustment unit for adjusting an interval between the first load application unit and the second load application unit;
An apparatus for determining the suitability of tension of a winding member. In the tension | tensile_strength suitability determination apparatus of the winding member of Claim 4 ,
A plurality of types of the first load acting portions having different lengths, including a mounting portion that is detachably mounted so that the first load acting portions can be replaced;
An apparatus for determining the suitability of tension of a winding member. In the tension | tensile_strength suitability determination apparatus of the winding member of Claim 4 or Claim 5 ,
A plurality of types of the second load acting portions having different lengths, and a mounting portion that detachably attaches the second load acting portion so that the second load acting portion can be replaced;
An apparatus for determining the suitability of tension of a winding member. In the tension | tensile_strength suitability determination apparatus of the winding member of any one of Claim 1- Claim 6 ,
A load detection unit for detecting a load acting on the first and second load application units;
A tension suitability determination unit that determines the suitability of tension of the winding member based on the detection result of the load detection unit;
The tension suitability instruction unit instructs the determination result of the tension suitability determination unit;
An apparatus for determining the suitability of tension of a winding member. In the tension | tensile_strength suitability determination apparatus of the winding member of Claim 7 ,
An information storage unit that stores from the minimum reference value to the maximum reference value of the tension of the winding member as conforming range information;
The tension suitability determination unit determines suitability of the tension of the winding member based on the load detection value detected by the load detection unit and the adaptation range information stored in the information storage unit,
An apparatus for determining the suitability of tension of a winding member.

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