Motor gear torsion test mechanism

Abstract

The utility model discloses a motor gear torsion test mechanism relates to motor gear test technical field, including equipment cabinet and install torsion detection module in its inside. Torsion detection module contains frame, rotation drive motor, torsion sensor, driven pulley, torsion transmission rod and gear seat. Frame top rotation connects driven pulley, its bottom end is connected torsion sensor, and the top is through gear seat tooth groove and engages motor gear, and torsion transmission rod top second clamping groove and motor gear key groove engage and realize double positioning. Rotation drive motor is driven driven pulley and motor gear rotation through belt drive, and torsion is passed through torsion transmission rod and is detected to torsion sensor. The equipment integrated automatic feeding, shift and classification structure, has promoted test efficiency and precision, is suitable for batch motor gear torsion detection.

Description

Technical Field

[0001] This utility model relates to the field of motor gear testing technology, and in particular to a motor gear torque testing mechanism. Background Technology

[0002] In the manufacturing process of motor gears, torque performance is one of the key indicators for measuring their quality, directly affecting the stability of motor operation, transmission efficiency, and service life. Traditional motor gear torque testing mostly relies on manual operation or semi-automatic equipment, which has problems such as low testing efficiency and insufficient accuracy, as detailed below:

[0003] During manual testing, operators need to manually install gears, start the testing device, and record data. This is not only labor-intensive but also prone to deviations in test results due to differences in operation, making it difficult to meet the testing requirements of mass production. Although existing semi-automatic equipment has partially achieved automation, it often suffers from insufficient positioning accuracy, and gears are prone to misalignment during installation, affecting the accuracy of torque transmission. Moreover, most equipment only operates at a single station, resulting in low testing efficiency and failing to match the fast-paced production of the production line. In addition, the gears after testing need to be manually classified as good or bad, further increasing labor costs, and misjudgments are prone to occur during the classification process. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a motor gear torque testing mechanism.

[0005] This utility model discloses a motor gear torque testing mechanism, including an equipment cabinet. A torque detection module is installed inside the equipment cabinet. The torque detection module includes a frame mounted at the top of the equipment cabinet and a rotary drive motor. Several torque sensors are installed at the bottom of the frame, and several driven pulleys are rotatably connected to the top of the frame. The bottom of each driven pulley is connected to the detection end of a torque sensor. The top of each driven pulley extends above the frame and engages with a gear seat. A toothed groove is formed inside the gear seat, and a motor gear engages within the toothed groove. A torque transmission rod is rotatably connected inside each driven pulley. The top of the torque transmission rod has a second groove that engages with a keyway at the bottom of the motor gear. The rotary drive motor drives the driven pulleys to rotate.

[0006] Furthermore, a gear feeding fixture is slidably connected to the top of the equipment cabinet, and a feeding drive cylinder is fixedly installed thereon. The telescopic end of the feeding drive cylinder is connected to the gear feeding fixture to drive the gear feeding fixture carrying the motor gear to move back and forth.

[0007] Furthermore, a horizontal linear drive module is installed at the top of the equipment cabinet, a vertical linear drive module is installed at the drive end of the horizontal linear drive module, a base is installed at the drive end of the vertical linear drive module, and several air nozzles are installed at the bottom of the base to adsorb the motor gears for transfer.

[0008] Furthermore, a sorting bin is installed at the top of the equipment cabinet. The sorting bin includes a bin rack installed at the top of the equipment cabinet. The defective product bin is locked inside the bin rack, and a good product guide ramp is provided on the side of the bin rack. The outlet of the good product guide ramp is connected to a conveyor line to transport the good products to the next process.

[0009] Furthermore, a first slot is formed at the top of the driven pulley, and locking planes are provided on both sides of the top of the gear seat, the locking planes engaging inside the first slot.

[0010] Furthermore, a sleeve is fitted over the outside of the torque transmission rod, and the shaft of the motor gear is inserted into the inside of the sleeve and engages with the second slot.

[0011] Furthermore, the frame and the driven pulley, as well as the driven pulley and the torque transmission rod, are rotatably connected by bearings.

[0012] Furthermore, the drive end of the rotary drive motor is equipped with a drive pulley, and the torque detection module also includes several transition pulleys rotatably connected to the top of the equipment cabinet. The drive pulley, the several transition pulleys, and the several driven pulleys are all connected by belt drive.

[0013] The beneficial effects of this utility model are as follows: By setting up a torque detection module, the torque of the motor gear is accurately detected. With the help of the gear feeding fixture and the feeding drive cylinder, automatic feeding is completed. The automatic transfer of the motor gear is achieved by the horizontal and vertical linear drive modules and the air nozzle. Then, the sorting bin completes the automatic classification of good and bad products. It integrates automatic feeding, accurate positioning, efficient testing and automatic classification functions, effectively improving the efficiency and accuracy of motor gear torque testing, reducing manual labor intensity and labor costs, and meeting the testing needs in mass production. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the torque detection module in this utility model;

[0016] Figure 3 This is a schematic diagram showing the disassembled structure of the driven pulley, torque transmission rod, and gear seat in this utility model;

[0017] Figure 4 In this utility model Figure 3 Schematic diagram of the connection structure between the assembled device and the torque sensor;

[0018] Figure 5 This utility model Figure 4 A half-section view;

[0019] Figure 6 This is a side view of the torque detection module after assembly in this utility model;

[0020] Figure 7 This is a top view of the belt drive between the pulleys of this utility model;

[0021] Figure 8 This is a schematic diagram of the classification bin structure in this utility model;

[0022] Figure 9 This is a schematic diagram of the assembly structure of this utility model.

[0023] In the diagram: 1. Equipment cabinet; 2. Torque detection module; 21. Frame; 22. Torque sensor; 23. Driven pulley; 24. First slot; 25. Torque transmission rod; 26. Second slot; 27. Sleeve; 28. Gear seat; 29. ​​Gear groove; 210. Positioning plane; 211. Bearing; 212. Rotary drive motor; 213. Transition pulley; 214. Drive pulley; 215. Belt; 3. Gear loading fixture; 4. Loading drive cylinder; 5. Horizontal linear drive module; 6. Vertical linear drive module; 7. Base; 8. Air nozzle; 9. Sorting bin; 91. Bin rack; 92. Defective product bin; 93. Good product guide slope; 10. Motor gear; 101. Keyway. Detailed Implementation

[0024] Reference Figure 1-9 This utility model proposes a motor gear torque testing mechanism, mainly used for automated detection and classification of the torque performance of motor gears 10. It includes an equipment cabinet 1, a torque testing module 2, a gear loading fixture 3, a loading drive cylinder 4, a horizontal linear drive module 5, a vertical linear drive module 6, an air nozzle 8, and a classification bin 9. The specific technical solution is as follows:

[0025] The torque detection module 2 is specifically composed of a frame 21, a torque sensor 22, a driven pulley 23, a torque transmission rod 25, a gear seat 28, a rotary drive motor 212, and a transmission assembly. The frame 21 is installed at the top inside the equipment cabinet 1. Several torque sensors 22 are installed at the bottom inside the frame 21 to detect the torque data generated when the motor gear 10 rotates in real time. Several driven pulleys 23 are rotatably connected to the top of the frame 21 through bearings 211. The bottom of the driven pulleys 23 is connected to the detection end of the torque sensor 22 through a coupling. The top of the driven pulleys 23 extends to the top of the frame 21 and engages with the gear seat 28. The gear seat 28 has a tooth groove 29 inside to engage the teeth of the motor gear 10. The top two sides of the gear seat 28 are provided with locking planes 210. The top of the driven pulley 23 has a first locking groove 24. The locking planes 210 engage with the first locking groove 24 to fix the gear seat 28 and the driven pulley 23.

[0026] The driven pulley 23 is also rotatably connected to a torque transmission rod 25 via a bearing 211. The top of the torque transmission rod 25 is provided with a second slot 26 for engaging with the keyway 101 at the bottom of the motor gear 10. A sleeve 27 is provided on its outside. The shaft of the motor gear 10 is inserted into the sleeve 27 and then engaged with the second slot 26.

[0027] The rotary drive motor 212 is mounted on the frame 21, and its drive end is equipped with a drive pulley 214. The torque detection module 2 also includes several transition pulleys 213 rotatably connected to the top of the equipment cabinet 1. The drive pulley 214, transition pulleys 213 and driven pulleys 23 are driven by a belt 215. When the rotary drive motor 212 is started, the power is transmitted to the driven pulley 23 through the drive pulley 214, belt 215 and transition pulleys 213, which drives the driven pulley 23 and gear seat 28 to rotate synchronously, thereby driving the gear part of the motor gear 10 to rotate. The torque it bears is transmitted to the torque sensor 22 through the shaft of the motor gear 10 and the torque transmission rod 25 to complete the detection.

[0028] To achieve automatic feeding of motor gears, a gear feeding fixture 3 is slidably connected to the top of the equipment cabinet 1 to carry the motor gear 10 to be tested. The telescopic end of the feeding drive cylinder 4 is connected to the gear feeding fixture 3. The telescopic piston rod pushes the gear feeding fixture 3 to reciprocate and transport the motor gear to be tested to the picking position.

[0029] A horizontal linear drive module 5 is installed at the top of the equipment cabinet 1. A vertical linear drive module 6 is installed at the drive end of the vertical linear drive module 6. A base 7 is installed at the drive end of the vertical linear drive module 6. Several air nozzles 8 are installed at the bottom of the base 7. Each air nozzle 8 is connected to the main solenoid valve through a separate air pipe. The horizontal and vertical linear drive modules work together to drive the base 7 and the air nozzles 8 to move. The air nozzles 8 use negative pressure to adsorb the motor gear 10, thereby realizing the transfer of the motor gear between the gear loading fixture 3 and the torque detection module 2, and between the torque detection module 2 and the sorting bin 9.

[0030] The sorting bin 9 includes a bin rack 91 installed at the top of the equipment cabinet 1. The bin rack 91 has a defective product bin 92 that is locked inside for storing motor gears that fail the test. The side of the bin rack 91 is provided with a good product guide ramp 93. The outlet of the good product guide ramp 93 is connected to the conveyor line. After the motor gears that pass the test slide out along the ramp, they are conveyed to the next process via the conveyor line, realizing the automatic sorting of good and defective products.

[0031] Work process:

[0032] The feeding drive cylinder 4 pushes the gear feeding fixture 3, which carries several motor gears 10 to be tested, to feed the gears. After the feeding is in place, the horizontal linear drive module 5 is started, driving the vertical linear drive module 6 to move horizontally to directly above the gear feeding fixture 3. The vertical linear drive module 6 drives the base 7 and the air nozzle 8 at the bottom to move downward until the air nozzle 8 is in contact with the top surface of the motor gear 10. The air nozzle 8 is connected to the negative pressure air source, and the motor gear 10 is firmly adsorbed by the negative pressure adsorption force. The vertical linear drive module 6 drives the air nozzle 8 with the adsorbed motor gear 10 to reset upward. Then the horizontal linear drive module 5 drives the vertical linear drive module 6 to move to directly above the corresponding driven pulley 23 in the torque detection module 2. The horizontal linear drive module 5 and the vertical linear drive module 6 are both transmission structures that drive the motor to rotate the lead screw, which adopts existing technology and will not be described in detail here.

[0033] The vertical linear drive module 6 drives the air nozzle 8 to move downward again, aligning the shaft of the motor gear 10 with the sleeve 27 outside the torque transmission rod 25, and inserting the shaft of the motor gear 10 into the sleeve 27. During this process, the keyway 101 at the bottom of the motor gear 10 precisely engages with the second slot 26 at the top of the torque transmission rod 25, and at the same time, the teeth of the motor gear 10 engage with the tooth groove 29 inside the gear seat 28. Then, the air nozzle 8 closes the negative pressure, releases the adsorption on the motor gear 10, and the vertical linear drive module 6 drives the air nozzle 8 to return to its original position.

[0034] When the rotary drive motor 212 starts, the drive pulley 214 at its drive end begins to rotate. Power is transmitted to the transition pulley 213 via the belt 215, which in turn drives the driven pulley 23 to rotate synchronously. Since the gear seat 28 is engaged and fixed with the first slot 24 of the driven pulley 23 through the locking plane 210, the gear seat 28 rotates together with the driven pulley 23, ultimately driving the motor gear 10 to rotate. The torque generated during the rotation of the motor gear 10 is transmitted to the detection end of the torque sensor 22 through the torque transmission rod 25. The torque sensor 22 detects and records the torque data in real time, completing the torque performance test of the motor gear 10. The torque sensor 22 is connected to an external test terminal via a wiring harness. The test terminal is equipped with corresponding software to display the torque value. This is existing known technology and will not be described in detail here.

[0035] After the test is completed, the torque sensor 22 transmits the detection data to the equipment control system. The system analyzes and judges the data to determine whether the motor gear 10 is a good or defective product.

[0036] If it is a good product: the horizontal linear drive module 5 and the vertical linear drive module 6 work together again to move the air nozzle 8 to the test station, adsorb the good product motor gear 10 and transfer it to the good product guide slope 93 above the sorting bin 9. The air nozzle 8 releases the motor gear 10, and the motor gear 10 slides out along the good product guide slope 93 and enters the connected conveyor line, and is transported to the next process.

[0037] If it is a defective product: After the air nozzle 8 picks up the defective product motor gear 10, it is transferred to the defective product bin 92 above the sorting bin 9. The air nozzle 8 releases the motor gear 10, and the defective product motor gear 10 falls into the defective product bin 92 for temporary storage.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A motor gear torque testing mechanism, comprising an equipment cabinet (1), characterized in that, The equipment cabinet (1) houses a torque detection module (2). The torque detection module (2) includes a frame (21) mounted at the top of the equipment cabinet (1) and a rotary drive motor (212). Several torque sensors (22) are mounted at the bottom of the frame (21), and several driven pulleys (23) are rotatably connected to the top of the frame (21). The bottom of the driven pulleys (23) is connected to the detection end of the torque sensors (22), and the top of the driven pulleys (23) extends... Above the frame (21), a gear seat (28) is engaged and fixed. The gear seat (28) has a toothed groove (29) inside. The toothed groove (29) engages with the motor gear (10). The driven pulley (23) is rotatably connected to a torque transmission rod (25). The top of the torque transmission rod (25) has a second slot (26) that engages with the keyway (101) at the bottom of the motor gear (10). The rotary drive motor (212) drives the driven pulley (23) to rotate.

2. The motor gear torque testing mechanism according to claim 1, characterized in that, The top of the equipment cabinet (1) is slidably connected to the gear feeding fixture (3) and the feeding drive cylinder (4) is fixedly installed. The telescopic end of the feeding drive cylinder (4) is connected to the gear feeding fixture (3) to push the gear feeding fixture (3) carrying the motor gear (10) to move back and forth.

3. The motor gear torque testing mechanism according to claim 1, characterized in that, The top of the equipment cabinet (1) is also equipped with a horizontal linear drive module (5), the drive end of the horizontal linear drive module (5) is equipped with a vertical linear drive module (6), the drive end of the vertical linear drive module (6) is equipped with a base (7), and the bottom end of the base (7) is equipped with several air nozzles (8) to adsorb the motor gear (10) for transfer.

4. The motor gear torque testing mechanism according to claim 1, characterized in that, The top of the equipment cabinet (1) is also equipped with a sorting bin (9). The sorting bin (9) includes a bin rack (91) installed on the top of the equipment cabinet (1). The defective product bin (92) is locked inside the bin rack (91), and a good product guide slope (93) is provided on the side of the bin rack (91). The outlet of the good product guide slope (93) is connected to the conveyor line to transport the good products to the next process.

5. The motor gear torque testing mechanism according to claim 1, characterized in that, The driven pulley (23) has a first slot (24) at its top end, and the gear seat (28) has a locking plane (210) on both sides of its top end. The locking plane (210) engages with the inside of the first slot (24).

6. The motor gear torque testing mechanism according to claim 1, characterized in that, The torque transmission rod (25) is fitted with a sleeve (27), and the shaft of the motor gear (10) is inserted into the sleeve (27) and engaged with the second slot (26).

7. The motor gear torque testing mechanism according to claim 1, characterized in that, The frame (21) and the driven pulley (23) are rotatably connected by bearings (211) as are the driven pulley (23) and the torque transmission rod (25).

8. The motor gear torque testing mechanism according to claim 1, characterized in that, The drive end of the rotary drive motor (212) is equipped with an active pulley (214). The torque detection module (2) also includes several transition pulleys (213) rotatably connected to the top of the equipment cabinet (1). The active pulley (214), several transition pulleys (213) and several driven pulleys (23) are all driven by belts (215).

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