Helical gear speed reducer load detection device

Abstract

The utility model provides a helical gear speed reducer load detection device which comprises a speed reducer body and further comprises a bottom plate, a balancing weight is arranged on the bottom plate, and foot stools assembled on the bottom plate are arranged on the two sides of the balancing weight. A first supporting plate and a second supporting plate are sequentially arranged between the two stand columns; the stand column is provided with a transmission unit and a swing arm matched with the transmission unit. According to the helical gear speed reducer load detection device provided by the utility model, the two groups of speed reducer bodies are assembled on the second supporting plate and are connected with the transmission unit so as to control the swinging arm and the weighting unit to swing, the phenomenon of position deviation or speed reduction of the swinging arm can occur for a long time, the operation is stopped, and recording is carried out; in the operation process, the first supporting plate and the second supporting plate are connected with the two stand columns, the supporting effect on the stand columns is improved, and the phenomenon that the stand columns shake is reduced.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and more specifically to a load detection device for a helical gear speed reducer. Background Technology

[0002] Gear reducers are commonly used as speed reduction transmission devices, mainly in mechanical equipment that reduces speed and increases torque, to make transmission more precise and smooth.

[0003] A helical gear reducer has multiple helical gears and a drive shaft inside. The helical gears are mounted on the drive shaft and rotate in conjunction. Adjacent parallel helical gears mesh with each other, so that the transmission ratio is greater than one, and the reducer is in a deceleration motion.

[0004] However, after the helical gears are manufactured, the helical gear reducer needs to be subjected to load testing. A load weight is added to the output shaft of the reducer. Under long-term uniform speed output operation, the internal temperature of the reducer will increase, which will cause the internal helical gears to wear rapidly. This will cause the reducer's rotation angle to shift or become misaligned. This is to evaluate the performance and service life of the reducer. In order to improve the testing efficiency, the motor is often run at a relatively high output speed. As the motor speed gradually increases, it will cause the testing platform to shake, which will affect the accuracy of the reducer testing. Utility Model Content

[0005] The purpose of this invention is to solve the aforementioned problems in the existing technology.

[0006] To achieve the above objectives, this utility model can be implemented through the following technical solution: a load detection device for a helical gear reducer, comprising a reducer body, and further comprising:

[0007] A base plate, on which a counterweight is provided, and on both sides of the counterweight are legs mounted on the base plate;

[0008] The columns are symmetrically arranged on the base plate, and a first support plate and a second support plate are arranged between the two columns in sequence. Each of the first support plate and the second support plate is provided with a triangular bracket, which cooperates with the column.

[0009] The column is equipped with a transmission unit and a swing arm that cooperates with the transmission unit. The swing arm is equipped with a weighting unit and a counterweight ring. The reducer body is mounted on the second support plate and cooperates with the transmission unit.

[0010] In this embodiment of the utility model, a support block is provided on the column, a connecting frame that cooperates with the column is provided on the support block, and a turntable that cooperates with the swing arm is provided on one side of the support block;

[0011] The column has a rotating rod at its axis, one end of which engages with the transmission unit, and the other end of which engages with the turntable.

[0012] In this embodiment of the utility model, the transmission unit includes a first synchronous pulley, a second synchronous pulley, and a synchronous belt, wherein the first synchronous pulley cooperates with the first synchronous pulley via the synchronous belt;

[0013] The second synchronous pulley is mounted on the rotating rod, while the first synchronous pulley is mounted on the output shaft of the reducer body.

[0014] In this embodiment of the invention, the number of teeth on the first synchronous pulley is less than the number of teeth on the second synchronous pulley.

[0015] In this embodiment of the utility model, bearings are provided at both ends of the rotating rod.

[0016] In this embodiment of the utility model, the weighting unit includes a support seat disposed on the swing arm, one end of the support seat is provided with limit posts arranged in a circular array, the end of the limit posts is provided with a chassis, and the counterweight ring is disposed on the chassis;

[0017] The other end of the support base is provided with a chuck, and a push rod is threadedly connected to the chuck. The end of the push rod is provided with a contact plate that fits against the counterweight ring.

[0018] In this embodiment of the utility model, a groove is provided on the base plate, and a guide post is provided in the groove, which cooperates with the counterweight.

[0019] In this embodiment of the utility model, the stand includes a screw, a top block, and a bending block disposed on the top block, the top block being fixed to the base plate;

[0020] The screw is located at the axis of the top block, and a pulley is provided at one end of the screw.

[0021] In this embodiment of the utility model, a rubber pad is provided on the bending block.

[0022] In this embodiment of the utility model, the column is provided with reinforcing ribs.

[0023] Compared with the prior art, the advantages of this application are as follows: the two sets of reducer bodies are assembled onto the second support plate and connected to the transmission unit to control the swing arm and the weight unit to swing. After a long time, the swing arm will experience positional displacement or speed reduction. The operation will be stopped and recorded. During operation, the first support plate and the second support plate connect the two columns, which improves the support effect on the columns and reduces the phenomenon of column swaying. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure;

[0025] Figure 2 This is a schematic diagram of the overall structure of the upper part of the column after being exploded and disassembled;

[0026] Figure 3 yes Figure 2 Enlarged view of section A in the middle;

[0027] Figure 4 This is a schematic diagram of the assembly of parts on a single column;

[0028] Figure 5 This is a schematic diagram of the overall assembly structure of the tripod;

[0029] Figure 6 It is a plan view of the whole in half section.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base plate; 11. Groove; 12. Counterweight; 13. Guide column; 14. Leg; 141. Screw; 142. Limit sleeve; 143. Top block; 144. Bending block; 145. Pulley; 146. Rubber pad; 2. Column; 20. Connecting frame; 21. Rotating rod; 22. Support block; 23. Bearing; 24. Turntable; 3. Counterweight ring; 4. Weighting unit; 41. Top rod; 42. Chuck; 411. Contact plate; 43. Support seat; 44. Limit column; 45. Chassis; 5. Swing arm; 6. Transmission unit; 61. Reducer body; 62. Synchronous belt; 63. First synchronous pulley; 64. Second synchronous pulley; 7. First support plate; 71. Control switch; 72. Timer; 73. Emergency stop button; 8. Second support plate; 9. Triangular bracket. Detailed Implementation

[0032] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0033] like Figure 1-6 As shown, a load detection device for a helical gear reducer includes a reducer body 61, and further includes:

[0034] The base plate 1 has a counterweight 12 on it, and the counterweight 12 has legs 14 mounted on the base plate 1 on both sides.

[0035] The columns 2 are symmetrically arranged on the base plate 1, and a first support plate 7 and a second support plate 8 are arranged between the two columns 2 in sequence. Triangular brackets 9 are provided on both the first support plate 7 and the second support plate 8, and the triangular brackets 9 cooperate with the columns 2.

[0036] The column 2 is equipped with a transmission unit 6 and a swing arm 5 that cooperates with the transmission unit 6. The swing arm 5 is equipped with a weighting unit 4 and a counterweight ring 3 is installed inside the weighting unit 4. The reducer body 61 is installed on the second support plate 8 and cooperates with the transmission unit 6.

[0037] Specifically, the base plate 1 is used to support the parts required for testing the reducer body 61, and at least two sets of columns 2 are set on the base plate 1. The two sets of columns 2 are installed on the base plate 1 in parallel and with a certain distance. Then, the first support plate 7 and the second support plate 8 are assembled between the columns 2 to improve the stability of the two columns 2. During testing, the reducer body 61 is installed on the second support plate 8 and cooperates with the transmission unit 6 to control the swing arm 5 to swing back and forth. The swing amplitude will not be greater than the width of the base plate 1. Through a period of testing, due to the wear of the helical gear or gear in the reducer body 61, the speed and swing position of the swing arm 5 will be deviated, and then the operation will stop and the values ​​will be recorded. The test values ​​of the two motors are compared to improve the accuracy of the test.

[0038] Furthermore, a control switch 71 and a timer 72 are symmetrically arranged on the first support plate 7, as well as an emergency stop button 73 for controlling the two reducers to stop simultaneously. When the swing arm 5 swings irregularly, it can be stopped by pressing the emergency stop button 73. The two sets of control switches 71 and timers 72 are electrically connected to the two reducer bodies 61 respectively to control the switching on and off of the reducer bodies 61 and the detection time.

[0039] As a further embodiment of this utility model, a support block 22 is provided on the column 2, and a connecting frame 20 that cooperates with the column 2 is provided on the support block 22. A turntable 24 that cooperates with the swing arm 5 is provided on one side of the support block 22. A rotating rod 21 is provided at the axis of the column 2. One end of the rotating rod 21 cooperates with the transmission unit 6, and the other end is engaged with the turntable 24. The connecting frame 20 is connected to the column 2 and the support block 22 respectively by bolts, thereby improving the stability of the column 2. The assembly process of the rotating parts on the column 2 is as follows: the rotating rod 21 is connected to the bearing 23 inside the column 2 in advance, and then the support block 22 is fixed to the end of the column 2 by bolts. Then the turntable 24 is engaged with the end of the rotating rod 21 and contacts the support block 22. The swing arm 5 and the turntable 24 are bolted to complete the assembly of the parts on the column 2.

[0040] As a further embodiment of this utility model, the transmission unit 6 includes a first synchronous pulley 63, a second synchronous pulley 64, and a synchronous belt 62. The first synchronous pulley 63 is engaged with the synchronous belt 62. The second synchronous pulley 64 is mounted on the rotating rod 21, while the first synchronous pulley 63 is mounted on the output shaft of the reducer body 61. A fixing frame and a coupling mounted at the center of the fixing frame are provided at the end of the first synchronous pulley 63, so that the reducer body 61 can be quickly installed on the fixing frame and its output end can be engaged with the coupling. When the reducer body 61 is running, the first synchronous pulley 63 drives the second synchronous pulley 64 to rotate through the synchronous belt 62, that is, the rotating rod 21 controls the swing arm 5 to reciprocate.

[0041] As a further embodiment provided by this utility model, the number of teeth of the first synchronous pulley 63 is less than the number of teeth of the second synchronous pulley 64. By decelerating the movement, the swing speed of the swing arm 5 is reduced, thereby further improving the stability of the device.

[0042] As a further embodiment of this utility model, bearings 23 are provided at both ends of the rotating rod 21, and the two bearings 23 are respectively engaged in the support block 22 or the column 2, thereby improving the rotation efficiency of the rotating rod 21.

[0043] As a further embodiment of this utility model, the weighting unit 4 includes a support base 43 disposed on the swing arm 5. One end of the support base 43 is provided with a limit post 44 arranged in a circumferential array. The end of the limit post 44 is provided with a chassis 45. The counterweight ring 3 is disposed on the chassis 45. The other end of the support base 43 is provided with a chuck 42. A push rod 41 is threadedly connected to the chuck 42. The end of the push rod 41 is provided with a contact plate that fits against the counterweight ring 3. The support base 43, the limit post 44, and the chassis 45 form a receiving cavity. The counterweight ring 3 is stacked and placed in the receiving cavity. The push rod 41 is then rotated so that the contact plate 411 fits against the counterweight ring 3, thereby fixing the counterweight ring 3. The weighting unit 4 can improve the load state at the end of the swing arm 5, that is, control the reducer under different load states and detect its failure time.

[0044] As a further embodiment of this utility model, a groove 11 is provided on the base plate 1, and a guide post 13 is provided in the groove 11. The guide post 13 cooperates with the counterweight 12. The counterweight 12 can be determined according to the operating power of the reducer body 61. When the amplitude and speed of the swing arm 5 are large, the number of counterweights 12 also increases to improve the stability of the base plate 1.

[0045] As a further embodiment of this utility model, the stand 14 includes a screw 141, a top block 143, and a bending block 144 disposed on the top block 143. The top block 143 is fixed to the base plate 1. The screw 141 is disposed at the axis of the top block 143. One end of the screw 141 is provided with a pulley 145, and the other end is provided with a limiting sleeve 142. The limiting sleeve 142 engages with the base plate 1 to fix the screw 141. The top block 143 is fixed to the bottom of the base plate 1 and is supported by the bending blocks 144 on both sides. The top block 143 and the two bending blocks 144 form a triangular cross section to improve the overall stability. Furthermore, when the base plate 1 needs to be moved, the screw 141 can be rotated to make the pulley 145 contact the ground, thereby moving the base plate 1.

[0046] As a further embodiment of this utility model, a rubber pad 146 is provided on the bending block 144. The rubber pad 146 improves the contact effect between the stand 14 and the ground, reducing the shaking phenomenon of the detection device.

[0047] As a further embodiment provided by this utility model, the column 2 is provided with reinforcing ribs, which are in two sets and are respectively provided on the four sides of the column 2 to improve the overall stability of the column 2.

[0048] Working principle: First, two identical reducer bodies 61 are installed on the second support plate 8, and the output shaft of the reducer body 61 is engaged with the coupling on the first synchronous pulley 63. Before the reducer body 61 runs, according to the swing amplitude of the swing arm 5 and the output power of the reducer, a counterweight block 12 is added to the guide column 13 to improve the overall stability of the base plate 1. Then, a counterweight ring 3 of appropriate weight is added under the support seat 43. The push rod 41 on the chuck 42 is rotated so that the contact plate 411 is in contact with the counterweight ring 3 to fix it. When the reducer runs, the first synchronous pulley 63 drives the second synchronous pulley 64 to rotate through the synchronous belt 62, thereby causing the rotating rod 21 to drive the swing arm 5 to swing back and forth. After a period of time, the swing arm 5 will show a swing position deviation and a change in speed, and then the reducer body 61 will stop and the detection data will be recorded. The data generated by the two motors are compared to improve the accuracy of the detection.

[0049] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0050] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A helical gear reducer load detecting device comprising a reducer body, characterized by, Also include: The bottom plate is provided with a counterweight, and the two sides of the counterweight are provided with a footrest assembled on the bottom plate; The column is symmetrically arranged on the bottom plate, and a first support plate and a second support plate are sequentially arranged between the two columns, and the first support plate and the second support plate are both provided with a triangular support matched with the column; The column is provided with a transmission unit and a swing arm matched with the transmission unit, the swing arm is provided with a weight unit, the weight unit is provided with a counterweight ring, and the reducer body is arranged on the second support plate and matched with the transmission unit.

2. The helical gear reducer load detecting device according to claim 1, wherein The column is provided with a support block, the support block is provided with a connecting frame matched with the column, and the support block is provided with a turntable matched with the swing arm; Wherein, the shaft of the column is provided with a rotating rod, one end of the rotating rod is matched with the transmission unit, and the other end is engaged with the turntable.

3. A helical gear reducer load detecting device according to claim 2, wherein The transmission unit includes a first synchronous wheel, a second synchronous wheel and a synchronous belt, the first synchronous wheel is matched with the first synchronous wheel through the synchronous belt; The second synchronous wheel is arranged on the rotating rod, and the first synchronous wheel is arranged on the output shaft of the reducer body.

4. The helical gear reducer load detecting device according to claim 3, wherein The number of teeth of the first synchronous wheel is less than the number of teeth of the second synchronous wheel.

5. The helical gear reducer load detecting device according to claim 2, wherein Both ends of the rotating rod are provided with bearings.

6. A helical gear reducer load detecting device according to claim 1, wherein The weight unit includes a support seat arranged on the swing arm, one end of the support seat is arranged in a circular array and provided with a limiting column, the end of the limiting column is provided with a bottom plate, and the counterweight ring is arranged on the bottom plate; The other end of the support seat is provided with a chuck, the chuck is threadedly connected with a top rod, and the end of the top rod is provided with a contact disc matched with the counterweight ring.

7. The helical gear reducer load detecting apparatus according to claim 1, wherein The bottom plate is provided with a groove, the groove is provided with a guide column, and the guide column is matched with the counterweight.

8. The helical gear reducer load detecting apparatus according to claim 1, wherein The footrest includes a screw rod, a top block, and a bent block arranged on the top block, and the top block is fixed on the bottom plate; The screw rod is arranged at the shaft center of the top block, and one end of the screw rod is provided with a pulley.

9. A helical gear reducer load detecting device according to claim 8, wherein The bent block is provided with a rubber pad.

10. The helical gear reducer load detecting apparatus according to claim 1, wherein The column is provided with a reinforcing rib.

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