Universal motor axial force testing tool

Abstract

The utility model discloses a universal axial force testing tool for a motor, which is high in universality, can adapt to various motors, is high in stability, ensures that each part is stable during testing, is convenient to control through a handle, and effectively solves the problems of the existing tool. According to the universal axial force testing tool for the motor, a tension device is connected with a non-riveting surface of a rotor through a tension hook and a tension rope, a central shaft of a speed reducer is inserted into the rotor, a cross screw lock and a nylon pressing block are arranged at the top of the central shaft, and a jacking screw and a jacking nylon block are arranged below the central shaft to assist in fixing the motor; the speed reducer and the chest expander are respectively provided with a handle, a positioning block is arranged between the speed reducer and the testing clamp, and the speed reducer and the chest expander are rotatably connected with the tension rope and the central shaft. The tool is high in universality, can be adapted to various motors, is high in stability, ensures that all parts are stable during testing, is simple and convenient to operate, is convenient to control through the handles, effectively solves the problems of the existing tool, and is suitable for popularization and application. And the accuracy and efficiency of motor axial force testing are improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of motor testing, specifically relating to a general-purpose axial force testing fixture for motors. Background Technology

[0002] The motor industry is developing rapidly, with motors used in numerous scenarios, including the consumer market, industry, and automotive. The variety of motor types is also increasing, and motor sizes are becoming more diverse to meet the different application areas of various customers. After each motor is designed, it must undergo a series of verification tests.

[0003] Axial force on a motor can significantly affect its noise and vibration. In addition, excessive axial force can increase energy consumption and reduce system efficiency. However, there is a lack of universally applicable testing fixtures for motor axial force when different types of motors are designed. Utility Model Content

[0004] The purpose of this utility model is to provide a universal motor axial force testing fixture to solve the problems mentioned in the background art, which are that the axial force of the motor has a great impact on the noise and vibration of the motor, and that when the axial force is too large, it will lead to increased energy consumption of the mechanical system and reduced system efficiency, and there is a lack of a universal motor axial force testing fixture.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a general-purpose motor axial force testing fixture, comprising a testing device body;

[0006] A test fixture is provided at the middle position above the main body of the test device, a mounting base is provided at the bottom position of the test fixture, a motor under test is provided inside the main body of the test device, a stator is provided outside the motor under test, and a rotor is provided inside the motor under test.

[0007] A tensioner is installed on the right side of the main body of the testing device, and a speed reducer is installed on the left side of the main body of the testing device.

[0008] Preferably, a tension hook is provided at the front of the tensioner, and a tension rope is provided at the front of the tension hook.

[0009] Preferably, a tension rope connection is provided at the end of the tension rope, and the tension rope connection is fixed to the non-riveted surface of the rotor.

[0010] Preferably, a central shaft is provided at the front side of the reducer, and the central shaft is inserted into the rotor.

[0011] Preferably, a placement slot is provided inside the test fixture, and the motor to be tested is fixed inside the placement slot.

[0012] Preferably, a Phillips head screw is provided at the top of the test fixture, and a nylon pressure block is provided at the bottom of the Phillips head screw.

[0013] Preferably, lifting screws are provided on the left and right sides below the test fixture, and lifting nylon blocks are provided at the top of the lifting screws.

[0014] Preferably, a reducer handle is provided at the rear of the reducer, a tensioner rotating handle is provided at the side of the tensioner, and a positioning block is provided at the middle of the test fixture and the tensioner. The positioning block is rotatably connected to the tension rope and the central shaft, respectively.

[0015] Compared with the prior art, this utility model provides a universal fixture for testing axial force in motors, which has the following advantages:

[0016] By arranging the tensioner, reducer, tension hook, tension rope, tension rope connection, and central shaft, a symmetrical and reasonable layout is formed with the tensioner on the right side of the main body of the testing device and the reducer on the left. This layout ensures that the motor under test receives a relatively balanced force during the test, avoiding deviations in test results due to excessive force on one side or an unreasonable layout, thus guaranteeing the stability of the testing environment and the accuracy of the test data. The tensioner is fixed to the non-riveted surface of the rotor via the tension hook, tension rope, and tension rope connection. This connection method reliably transmits the tension generated by the tensioner to the rotor. The tension rope has… With a certain degree of flexibility, it can adapt to the slight displacement and rotation of the rotor during the test while transmitting tension. Moreover, the tension rope connection is fixed on the non-riveted surface, which will not affect the structural integrity and mechanical performance of the rotor itself, ensuring that the test results truly reflect the axial force characteristics of the motor. The central shaft on the front side of the reducer is inserted into the rotor, which can accurately provide power input to the rotor. The cooperation between the central shaft and the rotor can effectively transmit torque, simulating the power state of the motor in actual operation, making the test environment closer to the actual working scenario, thereby improving the reliability and practicality of the test results, and helping to accurately evaluate the axial force performance of the motor in actual use.

[0017] The design incorporates a placement slot, Phillips head screws, nylon clamping blocks, lifting screws, and a lifting nylon block. The internal placement slots are sized to fit the motor under test (DUT), providing precise positioning and ensuring the motor is in the correct position before testing. This consistency in installation position is crucial for obtaining stable and comparable test data. The top Phillips head screws and bottom nylon clamping blocks work together; tightening the Phillips head screws secures the nylon clamping blocks firmly against the DUT. The soft nylon clamping blocks prevent hard damage to the motor's surface. The design provides sufficient pressure to firmly secure the motor, preventing it from shifting upwards due to vibration during testing. The lifting screws and nylon blocks on the lower left and right sides allow for fine-tuning of the motor's height by rotating the screws, adapting to different motor installation requirements. Furthermore, the nylon blocks provide stable support from the bottom, working in conjunction with the top fixing structure to further enhance the motor's stability within the test fixture, ensuring a stable motor position throughout the test and improving testing accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the top structure of the main body of the testing device in this utility model.

[0020] Figure 3 This is a schematic diagram of the side view of the main body of the testing device in this utility model.

[0021] Figure 4 This is a schematic diagram of the test fixture in this utility model.

[0022] In the diagram: 1. Main body of the testing device; 2. Tensioner; 3. Positioning block; 4. Testing fixture; 5. Reducer; 6. Motor under test; 7. Stator; 8. Central shaft; 9. Reducer handle; 10. Tensioner rotating handle; 11. Tension hook; 12. Tension rope; 13. Tension rope connection; 14. Phillips head screw; 15. Nylon pressure block; 16. Lifting screw; 17. Rotor; 18. Mounting base; 19. Lifting nylon block; 20. Placement slot. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figure 1-4 The invention shown is a general-purpose motor axial force testing fixture, which includes a testing device body 1;

[0025] A test fixture 4 is provided at the middle position above the main body 1 of the test device, and a mounting base 18 is provided at the bottom position of the test fixture 4. The motor under test 6 is provided inside the main body 1 of the test device, the stator 7 is provided outside the motor under test 6, and the rotor 17 is provided inside the motor under test 6.

[0026] A tensioner 2 is installed on the right side of the main body 1 of the testing device, and a speed reducer 5 is installed on the left side of the main body 1 of the testing device.

[0027] A tension hook 11 is provided at the front of the tensioner 2, and a tension rope 12 is provided at the front of the tension hook 11.

[0028] A tension rope connection 13 is provided at the end of the tension rope 12, and the tension rope connection 13 is fixed to the non-riveted surface of the rotor 17.

[0029] A central shaft 8 is provided at the front of the reducer 5, and the central shaft 8 is inserted into the rotor 17.

[0030] The test fixture 4 has a placement slot 20 inside, and the motor to be tested 6 is fixed inside the placement slot 20.

[0031] A cross screw lock 14 is provided at the top of the test fixture 4, and a nylon pressure block 15 is provided at the bottom of the cross screw lock 14.

[0032] Lifting screws 16 are respectively installed on the left and right sides below the test fixture 4, and lifting nylon blocks 19 are installed at the top of the lifting screws 16.

[0033] A reducer handle 9 is provided at the rear of the reducer 5, a tensioner rotating handle 10 is provided at the side of the tensioner 2, and a positioning block 3 is provided at the middle of the test fixture 4 and the tensioner 2. The positioning block 3 is rotatably connected to the tension rope 12 and the central shaft 8 respectively.

[0034] In this embodiment, the specific implementation steps of a general-purpose motor axial force testing fixture are as follows: The rotor 17 to be tested is inserted into the central shaft 8 and fixed to the non-riveted surface of the rotor 17 with a tension test rope 12. The other end of the tension test rope 12 is hooked onto the tension measuring hook 11. The tension rope 12 is pulled taut. The tensioner 2 is turned on, and the tensioner 2 gear is selected. The tensioner rotating handle 10 is manually rotated at a constant speed, so that the tensioner 2 pulls the rotor 17 horizontally through the tension rope 12. When the rotor 17 is pulled 3-5 cm, the handle rotation is stopped. The reducer handle 9 is rotated. The reducer 5 is connected to the central shaft 8 of the rotor 17. When the reducer handle 9 is rotated, the rotor 17 will also rotate. Check whether there is contact between the rotor 17 and the stator 7. If there is contact, it is necessary to adjust the cross-fixing mechanism. Adjust the position of stator 7 using lock 14 and lifting screw 16 to ensure a consistent gap between stator 7 and rotor 17. After preparation, turn on tensioner 2, select the tensioner 2 gear, and manually rotate tensioner handle 10 at a constant speed. This allows tensioner 2 to pull the rotor 17 under test horizontally via tension rope 12. Stop rotating the handle when the rotor 17 is pulled 3-5 cm. At this point, check the data displayed on tensioner 2, which should be B. The data obtained is the sum of the frictional force A between the horizontal pull of rotor 17 and the central shaft 8, and the axial force B between the horizontal pull of rotor 17 and stator 7. Finally, the axial force C of rotor 17 is calculated as B minus A, i.e., C = BA. The axial force of rotor 17 in this experiment is C.

[0035] like Figure 1-3 As shown, a tensioner 2 is installed on the right side of the main body 1 of the testing device, a reducer 5 is installed on the left side of the main body 1 of the testing device, a tension hook 11 is installed in front of the tensioner 2, a tension rope 12 is installed in front of the tension hook 11, a tension rope connection 13 is installed at the end of the tension rope 12, the tension rope connection 13 is fixed to the non-riveted surface of the rotor 17, and a central shaft 8 is installed in front of the reducer 5, the central shaft 8 is inserted into the rotor 17.

[0036] Preferably, a tensioner 2 is arranged on the right side of the main body 1 of the testing device, and a reducer 5 is arranged on the left side, forming a symmetrical and reasonable layout. This layout ensures that the motor under test 6 is subjected to a relatively balanced force during the test, avoiding deviations in test results due to excessive force on one side or an unreasonable layout, thus guaranteeing the stability of the testing environment and the accuracy of the test data. The tensioner 2 is fixed to the non-riveted surface of the rotor 17 through a tension hook 11, a tension rope 12, and a tension rope connection 13. This connection method can reliably transmit the tension generated by the tensioner 2 to the rotor 17. The tension rope 12 has a certain degree of flexibility, which can be used to transmit the tension. While adapting to the slight displacement and rotation of rotor 17 during the test, the tension rope connection 13 is fixed to the non-riveted surface, which will not affect the structural integrity and mechanical performance of rotor 17 itself, ensuring that the test results truly reflect the axial force characteristics of the motor. The central shaft 8 on the front side of the reducer 5 is inserted into rotor 17, which can accurately provide power input to rotor 17. The cooperation between central shaft 8 and rotor 17 can effectively transmit torque, simulate the power state of the motor during actual operation, and make the test environment closer to the actual working scenario, thereby improving the reliability and practicality of the test results and helping to accurately evaluate the axial force performance of the motor in actual use.

[0037] like Figure 1 and Figure 4 As shown, a placement groove 20 is provided inside the test fixture 4, and the motor to be tested 6 is fixed inside the placement groove 20. A cross screw lock 14 is provided at the top of the test fixture 4, and a nylon pressure block 15 is provided at the bottom of the cross screw lock 14. Lifting screws 16 are provided on the left and right sides below the test fixture 4, and lifting nylon blocks 19 are provided at the top of the lifting screws 16.

[0038] Preferably, the internal placement slot 20 is sized to fit the motor under test 6, providing precise positioning and ensuring the motor is in the correct position before testing begins. This ensures consistent installation position for each test, which is crucial for obtaining stable and comparable test data. The top Phillips head screw 14 and the bottom nylon pressure block 15 work together. By tightening the Phillips head screw 14, the nylon pressure block 15 can be firmly pressed onto the motor under test 6. The nylon pressure block 15 is soft, preventing hard damage to the surface of the motor under test 6 while providing sufficient pressure. The motor is securely fixed to prevent it from shifting upwards due to vibration or other factors during testing. The lifting screws 16 and lifting nylon blocks 19 on the lower left and right sides allow for fine-tuning of the height of the motor under test 6 by rotating the lifting screws 16 to accommodate different motor installation requirements. On the other hand, the lifting nylon blocks 19 provide stable support to the motor from the bottom, which, together with the fixed structure at the top, further enhances the stability of the motor under test 6 in the test fixture 4, ensuring that the motor position remains stable throughout the test and improving test accuracy.

[0039] like Figure 1-4 As shown, a reducer handle 9 is provided at the rear of the reducer 5, a tensioner rotating handle 10 is provided at the side of the tensioner 2, and a positioning block 3 is provided at the middle of the test fixture 4 and the tensioner 2. The positioning block 3 is rotatably connected to the tension rope 12 and the central shaft 8 respectively.

[0040] Optionally, a reducer handle 9 is provided on the rear side of the reducer 5 and a tensioner rotating handle 10 is provided on the side of the tensioner 2. This greatly facilitates the operator's control of the equipment. By operating the reducer handle 9, the operation of the reducer 5 can be easily controlled, thereby adjusting the speed and torque of the central shaft 8 to meet the power input requirements of the motor 6 under test under different test conditions. The tensioner rotating handle 10 allows the operator to flexibly control the magnitude and direction of the tension applied by the tensioner 2, realizing precise operation of the axial force test process of the motor, reducing the difficulty of operation and improving the test efficiency. A positioning block 3 is provided in the middle of the test fixture 4 and the tensioner 2, and the positioning block 3 is rotatably connected to the tension rope 12 and the central shaft 8 respectively. This design ensures the stability and accuracy of the tension rope 12 and the central shaft 8 during the movement process, making the entire test system more flexible and reliable.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A general-purpose motor axial force testing fixture, comprising a testing device body (1); A test fixture (4) is provided at the middle position above the main body (1) of the test device. A mounting base (18) is provided at the bottom position of the test fixture (4). A motor to be tested (6) is provided inside the main body (1) of the test device. A stator (7) is provided outside the motor to be tested (6). A rotor (17) is provided inside the motor to be tested (6). Its features are: A tensioner (2) is provided on the right side of the main body (1) of the test device, and a speed reducer (5) is provided on the left side of the main body (1) of the test device.

2. The universal motor axial force testing fixture according to claim 1, characterized in that: A tension hook (11) is provided at the front side of the tensioner (2), and a tension rope (12) is provided at the front side of the tension hook (11).

3. The universal motor axial force testing fixture according to claim 2, characterized in that: A tension rope connection (13) is provided at the end of the tension rope (12), and the tension rope connection (13) is fixed to the non-riveted surface of the rotor (17).

4. A general-purpose motor axial force testing fixture according to claim 3, characterized in that: A central shaft (8) is provided at the front of the reducer (5), and the central shaft (8) is inserted into the rotor (17).

5. A general-purpose motor axial force testing fixture according to claim 1, characterized in that: The test fixture (4) has a placement slot (20) inside, and the motor to be tested (6) is fixed inside the placement slot (20).

6. A general-purpose motor axial force testing fixture according to claim 5, characterized in that: The test fixture (4) is provided with a cross screw lock (14) at the top position and a nylon pressure block (15) at the bottom position of the cross screw lock (14).

7. A general-purpose motor axial force testing fixture according to claim 6, characterized in that: The test fixture (4) is provided with lifting screws (16) on the left and right sides below, and a lifting nylon block (19) is provided at the top of the lifting screws (16).

8. A general-purpose motor axial force testing fixture according to claim 1, characterized in that: A speed reducer handle (9) is provided at the rear of the speed reducer (5), a tensioner rotating handle (10) is provided at the side of the tensioner (2), and a positioning block (3) is provided at the middle of the test fixture (4) and the tensioner (2). The positioning block (3) is rotatably connected to the tension rope (12) and the central shaft (8) respectively.

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