A motor torque detection device

Abstract

The utility model provides a kind of motor torque detection device, comprising: underframe, the auxiliary wheel is arranged on the underframe;Torque detection unit, the torque detection unit is set on the underframe, and the torque detection unit includes motor and the torque detector being arranged on the motor output end, the side of the torque detector is provided with line wheel, and the line wheel is provided with the line rope abutting against the auxiliary wheel;Counterweight unit, the counterweight unit is set on the underframe.The motor torque detection device provided by the utility model fixes detection motor to underframe, and is connected with torque detector and rope wheel, and then the counterweight block of detection setting weight is placed on counterweight frame, at this time motor starts, to react torsion output by torque detector, and records the misplacement time under torsion output for a long time, subsequently adds or reduces counterweight block, to detect in different weight in this way, to improve accuracy in detection process.

Description

Technical Field

[0001] This utility model relates to the technical field of motor testing devices, and more specifically to a motor torque testing device. Background Technology

[0002] An electric motor mainly consists of a stator and a rotor. The stator and rotor interact electromagnetically to convert electrical energy into mechanical energy, thereby driving the transmission equipment. After the stator and rotor are assembled during the production process, a series of tests are often performed on the motor to improve its production quality, such as torque testing. Torque testing is a key step in ensuring the performance, safety, and reliability of the motor.

[0003] However, during the testing process, the motor is often subjected to load testing under simulated actual working conditions in order to evaluate the stability and efficiency of the motor under different load conditions. Currently, a fixed counterweight is often set at the output end of the motor during the testing process. The weight adjustment of the counterweight needs to be redesigned and processed, resulting in relatively simple test data that cannot meet the torque conditions under actual load. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies and to solve the issue of difficulty in balancing the motor during torque testing.

[0005] To achieve the above objectives, this utility model can be implemented through the following technical solution: a motor torque detection device, comprising:

[0006] A base frame, on which auxiliary wheels are provided;

[0007] A torque detection unit is mounted on the base frame. The torque detection unit includes a motor and a torque detector mounted on the output end of the motor. A spool is mounted on one side of the torque detector, and a rope is mounted on the spool that abuts against the auxiliary wheel.

[0008] A counterweight unit is mounted on the base frame. The counterweight unit includes a stabilizer frame and a counterweight frame snapped onto the stabilizer frame. Counterweight blocks are arranged in a linear array on the counterweight frame. The stabilizer frame is connected to the rope.

[0009] In this embodiment of the utility model, a fixed block is provided on the stabilizing frame, a triangular block is slidably provided on the fixed block, a spring is provided between the triangular block and the fixed block, and a slot is provided on the counterweight frame to engage with the triangular block. The stabilizing frame slides on the base frame.

[0010] In this embodiment of the utility model, a pull rod is provided on the triangular block, and the pull rod slides within the fixed block.

[0011] In this embodiment of the utility model, an L-shaped bending plate is provided on the base frame, and a rolling ball is provided on the stabilizing frame that rolls within the L-shaped bending plate.

[0012] In this embodiment of the utility model, the counterweight frame has an arc-shaped groove, and a locking block is provided in the arc-shaped groove. The rope is fixed in the arc-shaped groove by the locking block.

[0013] In this embodiment of the utility model, a limiting component is provided on the base frame. The limiting component includes an adjusting block and a sensor disposed on the adjusting block. A locking component that abuts against the base frame is provided on the adjusting block.

[0014] The counterweight unit also includes a first contact rod and a second contact rod, both of which abut against the sensor.

[0015] In this embodiment of the utility model, the adjusting block is provided with a wire sleeve.

[0016] In this embodiment of the utility model, the transmission unit further includes a bracket and a display. The motor, torque detector and the reel are all mounted on the bracket. The display is mounted on the bracket and electrically connected to the torque detector.

[0017] In this embodiment of the utility model, the base frame is provided with a slide rail that cooperates with the stabilizer frame.

[0018] In this embodiment of the utility model, a support block is provided on the base frame, and a bearing that cooperates with the auxiliary wheel is provided on the support block.

[0019] Compared with the prior art, the advantages of this application are as follows: the detection motor is fixed to the base frame and connected to the torque detector and the rope wheel. Then, a counterweight block with a set weight is placed on the counterweight frame. At this time, the motor is started so that the torque output is reflected by the torque detector and the misalignment time under the torque output is recorded for a long time. Then, the counterweight block is added or removed to perform detection at different weights, thereby improving the accuracy of the detection process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure after the parts are assembled;

[0021] Figure 2 This is a schematic diagram of the exploded structure after the counterweight unit was removed from the base frame;

[0022] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is the overall left-side plan view.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base frame; 11. Base plate; 12. Slide rail; 13. Reinforcing block; 14. Auxiliary wheel; 15. Support block; 16. L-shaped bending plate; 17. Column; 18. Stabilizing block; 2. Limiting component; 21. Locking component; 22. Adjusting block; 23. Cable sleeve; 24. Sensor; 3. Cable; 4. Counterweight unit; 40. First contact rod; 41. Counterweight frame; 411. Inlet; 42. Fixing block; 43. Locking block; 44. Arc-shaped groove; 45. Second contact rod; 46. Rolling ball; 47. Stabilizing frame; 471. Triangular block; 472. Spring; 473. Pull rod; 5. Torque detection unit; 51. Bracket; 52. Motor; 53. Display; 54. Torque detector; 55. Rope pulley; 6. Counterweight block. Detailed Implementation

[0026] 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.

[0027] like Figure 1-4 As shown, a motor torque detection device includes:

[0028] Base frame 1, with auxiliary wheels 14 mounted on it;

[0029] Torque detection unit 5 is mounted on base frame 1. Torque detection unit 5 includes motor 52 and torque detector 54 mounted on the output end of motor 52. A spool is mounted on one side of torque detector 54, and a rope 3 is mounted on the spool that abuts against auxiliary wheel 14.

[0030] The counterweight unit 4 is mounted on the base frame 1. The counterweight unit 4 includes a stabilizer 47 and a counterweight frame 41 that is snapped onto the stabilizer 47. The counterweight frame 41 is provided with counterweight blocks 6 arranged in a linear array. The stabilizer 47 is connected to the rope 3.

[0031] Specifically, the base frame 1 consists of a base plate 11 and two columns 17, with a reinforcing block 13 between the two columns 17. The reinforcing block 13 is I-shaped to improve the stability of the device during the testing process. When testing the motor 52, two motors 52 of the same batch are fixed to the base frame 1, and the output end of the motor 52 is connected to the corresponding torque detector 54 and the rope wheel 55. Then, the required weight of the counterweight block 6 is added to the counterweight frame 41 (the weight of the counterweight block 6 can be adjusted). At this time, the motor 52 runs in both forward and reverse directions to drive the rope wheel 55 to rotate. The rope slides on the auxiliary wheel 14 so that the counterweight unit 4 slides back and forth on the column 17, thereby detecting that the motor 52 outputs under the rated torque. When the output shaft of the motor 52 is detected to deviate, the corresponding value is detected by the sensor 24 and the detection time is recorded. Then, the counterweight block 6 on the counterweight frame 41 is added or removed for multiple tests. The two motors 52 and multiple tests are performed to improve the accuracy of the detection values.

[0032] As a further embodiment of this utility model, a fixed block 42 is provided on the stabilizer 47, a triangular block 471 is slidably provided on the fixed block 42, a spring 472 is provided between the triangular block 471 and the fixed block 42, and a slot is provided on the counterweight frame 41 to engage with the triangular block 471. The stabilizer 47 slides on the base frame 1, and a pull rod 473 is provided on the triangular block 471. The pull rod 473 slides within the fixed block 42. Pulling the pull rod 473 causes the triangular block 471 to slide off the fixed block 42 and disengage from the counterweight frame 41. At this time, the counterweight frame 41 can be pulled out from the fixed block 42, and a counterweight 6 can be added at the inlet 411 to quickly adjust the weight during the detection process, that is, to adjust the rated torque of the motor 52.

[0033] As a further embodiment of this utility model, an L-shaped bending plate 16 is provided on the base frame 1, and a ball 46 that rolls inside the L-shaped bending plate 16 is provided on the stabilizer frame 47. The L-shaped bending plate 16 serves as a guide to improve the sliding effect of the stabilizer frame 47 on the base frame 1, so as to avoid the phenomenon of the stabilizer frame 47 getting stuck or jammed on the base frame 1 during the testing process.

[0034] As a further embodiment of this utility model, the counterweight frame 41 is provided with an arc-shaped groove 44, and a locking block 43 is provided in the arc-shaped groove 44. The rope 3 is fixed in the arc-shaped groove 44 through the locking block 43. The locking block 43 is fixed in the arc-shaped groove 44 by bolts. As the locking block 43 gradually fits into the arc-shaped groove 44, the pressure on the rope 3 increases accordingly. The counterweight unit 4 can be driven to slide on the base frame 1 by the rope 3.

[0035] As a further embodiment of this utility model, a limiting member 2 is provided on the base frame 1. The limiting member 2 includes an adjusting block 22 and a sensor 24 disposed on the adjusting block 22. A locking member 21 abutting against the base frame 1 is provided on the adjusting block 22. The locking member 21 can be a bolt. The adjusting block 22 can slide on the base frame 1 and be fixed by the locking member 21 to adjust the position of the limiting member 2. The counterweight unit 4 also includes a first contact rod 40 and a second contact rod 45. Both the first contact rod 40 and the second contact rod 45 abut against the sensor 24. When the motor 52 is performing detection, under the rated torque, as time goes on, the output shaft of the motor 52 will rotate at an angle offset, so that the sliding distance of the stabilizer 47 changes, which will cause the first contact rod 40 or the second contact rod 45 to contact the output end of the sensor 24, so that the motor 52 stops outputting and the offset time of the motor 52 is recorded. There are two sets of limiting members 2, such as Figure 2 The device shown is set on the base frame 1 to serve as a limit, which is the maximum sliding distance set by the stabilizer 47.

[0036] As a further embodiment of this utility model, the adjusting block 22 is provided with a sleeve 23, and the rope 3 slides inside the sleeve 23 to improve the traction effect of the rope 3.

[0037] As a further embodiment of this utility model, the transmission unit also includes a bracket 51 and a display 53. The motor 52, torque detector 54 and reel are all mounted on the bracket 51. The display 53 is mounted on the bracket 51 and electrically connected to the torque detector 54. The display 53 displays the torque value during the detection process so that the worker can observe it at any time.

[0038] As a further embodiment of this utility model, the base frame 1 is provided with a slide rail 12 that cooperates with the stabilizer frame 47. The slide rail 12 is provided in two sets on the L-shaped bending plate 16 to improve the sliding effect of the counterweight unit 4.

[0039] As a further embodiment of this utility model, a support block 15 is provided on the base frame 1, and a stabilizing block 18 is provided between the support block 15 and the column 17 to improve the connection and fixing effect between the support block 15 and the column 17. A bearing that cooperates with the auxiliary wheel 14 is provided on the support block 15. The support block 15 supports the auxiliary wheel 14 and plays the role of supporting the rope 3, so that the rope 3 is connected to the counterweight unit 4 and the rope wheel 55 in the vertical direction.

[0040] 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.

[0041] 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, and 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 motor torque detection device, characterized in that, include: A base frame, on which auxiliary wheels are provided; A torque detection unit is mounted on the base frame. The torque detection unit includes a motor and a torque detector mounted on the output end of the motor. A spool is mounted on one side of the torque detector, and a rope is mounted on the spool that abuts against the auxiliary wheel. A counterweight unit is mounted on the base frame. The counterweight unit includes a stabilizer frame and a counterweight frame snapped onto the stabilizer frame. Counterweight blocks are arranged in a linear array on the counterweight frame. The stabilizer frame is connected to the rope.

2. The motor torque detection device according to claim 1, characterized in that, The stabilizing frame is provided with a fixed block, and a triangular block is slidably disposed on the fixed block. A spring is disposed between the triangular block and the fixed block. The counterweight frame is provided with a slot that engages with the triangular block. The stabilizing frame slides on the base frame.

3. The motor torque detection device according to claim 2, characterized in that, A pull rod is provided on the triangular block, and the pull rod slides within the fixed block.

4. The motor torque detection device according to claim 2, characterized in that, The base frame is provided with an L-shaped bending plate, and the stabilizing frame is provided with a rolling ball located inside the L-shaped bending plate.

5. The motor torque detection device according to claim 1, characterized in that, The counterweight frame has an arc-shaped groove, and a locking block is provided in the arc-shaped groove. The rope is fixed in the arc-shaped groove by the locking block.

6. The motor torque detection device according to claim 1, characterized in that, The base frame is provided with a limiting component, which includes an adjusting block and a sensor disposed on the adjusting block. The adjusting block is provided with a locking component that abuts against the base frame. The counterweight unit also includes a first contact rod and a second contact rod, both of which abut against the sensor.

7. The motor torque detection device according to claim 6, characterized in that, The adjusting block is equipped with a wire sleeve.

8. The motor torque detection device according to claim 1, characterized in that, The transmission unit also includes a bracket and a display. The motor, torque detector and the reel are all mounted on the bracket. The display is mounted on the bracket and is electrically connected to the torque detector.

9. A motor torque detection device according to claim 1, characterized in that, The base frame is equipped with slide rails that cooperate with the stabilizer frame.

10. A motor torque detection device according to claim 1, characterized in that, The base frame is provided with a support block, and the support block is provided with a bearing that cooperates with the auxiliary wheel.

Images