New energy automobile motor testing device

Abstract

The invention relates to the technical field of motor testing, and discloses a new energy automobile motor testing device which comprises a base, an equipment box is installed on the base, performance testing equipment is arranged in the equipment box, the performance testing equipment is connected with an input shaft, the new energy automobile motor testing device further comprises a testing table, and a connecting frame is installed on one side of the testing table; a connecting cylinder is rotationally arranged in the connecting frame; according to the invention, the power of the output shaft of the motor can be stably transmitted to the input shaft of the performance test equipment through the self-adaptive transmission assembly, so that the power transmission between the motor and the input shaft is not affected by the bumping of the motor, and the performance test equipment can carry out precise test in the motor bumping simulation test process. In addition, in the process that the jolting assembly drives the motor on the test board to jolt up and down, the jolting assembly can test the performance parameters of the output shaft of the motor when the load exists through the weight of structures such as the test board and the like.

Description

Technical Field

[0001] This invention relates to the field of motor testing technology, specifically a testing device for new energy vehicle motors. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels such as electricity and hydrogen as their power source, or those that use conventional vehicle fuels but are equipped with new power devices. Currently, electric drive has become the mainstream technology route for new energy vehicles. Its core working logic is: the power battery outputs electrical energy, which drives the motor to convert the electrical energy into mechanical energy, and then the motor drives the vehicle's transmission system to ultimately enable the vehicle to move. Therefore, testing the performance parameters of the motor is crucial.

[0003] Currently, existing testing equipment generally uses a connection mechanism to connect the motor output to the input of the performance testing equipment to achieve performance testing of the motor under operating conditions. However, when conducting vibration simulation testing of automotive motors, in order to ensure the stability of the connection between the motor output and the input of the testing equipment, traditional solutions often adopt a design of "synchronous vibration of the motor and the testing equipment." However, vibration will subject the performance testing equipment (such as precision torque sensors, dynamometers, etc.) to unnecessary vibration and impact, which will affect the accuracy of the performance testing equipment in testing the motor. On the other hand, if vibration simulation is applied only to the motor to protect the testing equipment, it will lead to problems such as misalignment of the connection between the motor output and the input of the performance testing equipment, which will also affect the accuracy of the performance testing equipment in testing the motor. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device for electric motors in new energy vehicles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A testing device for a new energy vehicle motor includes a base, on which an equipment box is mounted. The equipment box contains performance testing equipment for testing the motor's performance. The performance testing equipment is connected to an input shaft. The device also includes:

[0007] A test bench, wherein a connecting frame is installed on the side of the test bench near the equipment box, and a connecting cylinder is rotatably installed inside the connecting frame;

[0008] An adaptive transmission assembly is disposed between the connecting frame and the input shaft to achieve smooth transmission between the motor output shaft and the input shaft of the performance testing equipment.

[0009] A limiting component is disposed on the base and connected to the test bench, and is used to limit the test bench.

[0010] An adjustment component is disposed on the limiting component and is used to adjust the limiting constraint force of the limiting component on the test bench;

[0011] A bumping assembly, which is mounted on the base, is used to cause the test bench to bump.

[0012] A connecting assembly, which is disposed inside a connecting cylinder, is used to connect the motor output shaft to the connecting cylinder;

[0013] A moving component, which is mounted on a test bench, is used to drive a motor to move in position;

[0014] A fixing component is disposed on the moving component and is used to fix the motor.

[0015] As a preferred embodiment of the present invention, the adaptive transmission assembly includes an adjustment box, a first rotating shaft, and a second rotating shaft. The adjustment box is connected to the equipment box, and a mounting frame is installed on the side wall of the connecting frame. The mounting frame is rotatably connected to the first rotating shaft, and the input shaft is rotatably connected to the adjustment box. Pulleys are installed on the first rotating shaft, the second rotating shaft, and the input shaft, and several pulleys are connected by a synchronous belt drive. Adjustment grooves are opened on both sides of the adjustment box, and an adjustment frame rotatably connected to the second rotating shaft is slidably arranged in the adjustment groove. A first elastic element and a telescopic rod connected to the adjustment frame are installed in the adjustment box. A first gear located in the connecting frame is installed on the first rotating shaft, and a second gear meshing with the first gear is installed on the outer wall of the connecting cylinder.

[0016] As a preferred embodiment of the present invention, the limiting component includes two symmetrically distributed mounting brackets mounted on the base. A top plate and a bottom support are mounted on the mounting brackets. Two guide rods connected to the base are mounted on the top plate. The guide rods are slidably connected to the test platform. A second elastic element is provided on the test platform.

[0017] As a preferred embodiment of the present invention, the adjustment assembly includes a third telescopic member mounted on the top plate, the telescopic end of the third telescopic member being connected to an adjustment plate that slides with the guide rod, and the adjustment plate being connected to a second elastic member.

[0018] As a preferred embodiment of the present invention, the bumping assembly includes two symmetrically distributed displacement grooves formed on the base, the displacement grooves are slidably connected to the displacement frame, the displacement frame is rotatably provided with a movable shaft, the movable shaft is mounted with a cam, a fourth telescopic member connected to the displacement frame is installed on the side of the base away from the equipment box, and a synchronization member is provided between the movable shaft and the input shaft.

[0019] As a preferred embodiment of the present invention, the synchronizing element includes a connecting protrusion installed on one end of the movable shaft near the equipment box, and a connecting seat installed on the end of the input shaft, wherein a connecting groove is provided on the connecting seat to cooperate with the connecting protrusion.

[0020] As a preferred embodiment of the present invention, the connecting assembly includes a plurality of second telescopic members installed on the outer wall of the connecting cylinder, and the telescopic ends of the second telescopic members are fitted with keyway mating parts located inside the connecting cylinder.

[0021] As a preferred embodiment of the present invention, the movable component includes a slide groove formed on the test platform, a sliding frame slidably disposed in the slide groove, the sliding frame being fixedly connected to a support platform, a placement groove being formed on the support platform, and a first telescopic member connected to the sliding frame being installed on the test platform.

[0022] As a preferred embodiment of the present invention, the fixing component includes two limiting rods mounted on a support platform, with movable frames slidably arranged on both sides of the limiting rods, and a fixing plate mounted on the movable frames. A bidirectional screw rod that is threadedly connected to the two movable frames is rotatably arranged in the middle of the support platform, and a driving component connected to the bidirectional screw rod is installed on the side wall of the support platform.

[0023] The present invention has the following advantages: The adaptive transmission component can smoothly transmit the power from the motor output shaft to the input shaft of the performance testing equipment, thus preventing the power transmission between the motor and the input shaft from being affected by motor vibrations. This allows the performance testing equipment to perform accurate tests during motor vibration simulation testing, and the vibrations will not cause vibration or impact to the performance testing equipment, thereby extending its service life. Furthermore, while the vibration component drives the motor on the test bench to bounce up and down, the performance parameters of the motor output shaft under load can also be tested through the test bench and other structures. Combined with the adjustment component, the load on the motor output shaft can be adjusted, simulating the load changes of the motor during actual operation as needed. This ensures a high degree of matching between the test scenario and actual application, significantly improving the reliability of the test results. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a testing device for a new energy vehicle motor.

[0025] Figure 2 This is a schematic diagram of a new energy vehicle motor testing device without the equipment box.

[0026] Figure 3 This is a schematic diagram of the structure of a fixed component in a new energy vehicle motor testing device.

[0027] Figure 4 This is a schematic diagram of the adaptive transmission component in a new energy vehicle motor testing device.

[0028] Figure 5 This is a schematic diagram of the connecting components in a new energy vehicle motor testing device.

[0029] Figure 6 This is a schematic diagram of the limiting component and the adjusting component in a new energy vehicle motor testing device.

[0030] Figure 7 This is a schematic diagram of the bumping component in a new energy vehicle motor testing device.

[0031] Figure 8 for Figure 7 A magnified view of a portion of point A in the middle.

[0032] In the diagram: 101, base; 102, equipment box; 103, performance testing equipment; 104, input shaft; 105, test bench; 106, connecting frame; 107, connecting cylinder; 2. Moving assembly; 201, slide groove; 202, sliding frame; 203, first telescopic component; 204, support platform; 205, placement slot; 3. Fixing assembly; 301, limit rod; 302, moving frame; 303, fixing plate; 304, bidirectional screw; 305, driving component; 4. Connecting assembly; 401, second telescopic component; 402, keyway mating part; 5. Adaptive transmission assembly; 501, mounting frame; 502, first rotating shaft; 503, first gear; 504. Second gear; 505. Adjusting box; 506. Second rotating shaft; 507. Pulley; 508. Synchronous belt; 509. Adjusting groove; 510. Adjusting frame; 511. Telescopic rod; 512. First elastic element; 6. Limiting assembly; 601. Mounting bracket; 602. Base support; 603. Top plate; 604. Guide rod; 605. Second elastic element; 7. Adjusting assembly; 701. Third telescopic element; 702. Adjusting plate; 8. Bumping assembly; 801. Displacement groove; 802. Displacement frame; 803. Movable shaft; 804. Cam; 805. Fourth telescopic element; 806. Connecting protrusion; 807. Connecting seat; 808. Connecting groove. Detailed Implementation

[0033] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0034] Please see Figure 1-8 A new energy vehicle motor testing device includes a base 101, on which an equipment box 102 is mounted. A performance testing device 103 is installed inside the equipment box 102 for performing performance testing on the motor. The performance testing device 103 is connected to an input shaft 104. The device also includes:

[0035] Test bench 105, a connecting frame 106 is installed on the side of the test bench 105 near the equipment box 102, and a connecting cylinder 107 is rotatably arranged inside the connecting frame 106;

[0036] Adaptive transmission component 5 is disposed between connecting frame 106 and input shaft 104 to realize smooth transmission between motor output shaft and input shaft 104 of performance testing equipment 103;

[0037] A limiting component 6 is disposed on the base 101 and connected to the test bench 105, and is used to limit the test bench 105.

[0038] Adjustment component 7 is disposed on limit component 6 and is used to adjust the limiting constraint force of limit component 6 on test table 105;

[0039] A bumping component 8 is disposed on the base 101 and is used to cause the test bench 105 to be bumped.

[0040] Connection component 4, which is disposed inside the connecting cylinder 107, is used to connect the motor output shaft to the connecting cylinder 107;

[0041] The moving component 2 is disposed on the test bench 105 and is used to drive the motor to move in position.

[0042] The fixing component 3 is disposed on the moving component 2 and is used to fix the motor.

[0043] In one instance of this embodiment, please refer to Figure 1-4 The adaptive transmission assembly 5 includes an adjustment box 505, a first rotating shaft 502, and a second rotating shaft 506. The adjustment box 505 is connected to the equipment box 102, and a mounting frame 501 is installed on the side wall of the connecting frame 106. The mounting frame 501 is rotatably connected to the first rotating shaft 502. The input shaft 104 is rotatably connected to the adjustment box 505. Pulleys 507 are installed on the first rotating shaft 502, the second rotating shaft 506, and the input shaft 104. Several pulleys 507 are connected by a synchronous belt 508. Adjustment grooves 509 are opened on both sides of the adjustment box 505. An adjustment frame 510 rotatably connected to the second rotating shaft 506 is slidably arranged in the adjustment groove 509. A first elastic element 512 and a telescopic rod 511 connected to the adjustment frame 510 are installed in the adjustment box 505. A first gear 503 located in the connecting frame 106 is installed on the first rotating shaft 502. A second gear 504 meshing with the first gear 503 is installed on the outer wall of the connecting cylinder 107.

[0044] With the cooperation of the first elastic element 512 and the telescopic rod 511, the adjusting frame 510 is subjected to an elastic pulling force towards the telescopic rod 511. Under the elastic pulling force of the first elastic element 512, the synchronous belt 508, which is connected to the pulley 507, can be straightened, thereby ensuring the power transmission capacity of the synchronous belt 508.

[0045] The motor's output shaft is connected to the connecting cylinder 107 via the connecting assembly 4. When the motor is working, the output shaft drives the connecting cylinder 107 to rotate synchronously. The meshing first gear 503 and second gear 504 drive the first rotating shaft 502 to rotate, causing the pulley 507 on it to rotate synchronously. In conjunction with the synchronous belt 508 and the pulleys 507 on the first rotating shaft 502 and the input shaft 104, the input shaft 104 can be driven to rotate synchronously. Thus, the performance testing device 103 can detect the motor's performance parameters through the input of the input shaft 104.

[0046] During the motor's vibration simulation test, the vibration test bench 105 moves up and down repeatedly. During this process, the input shaft 104 in the adjustment box 505 remains stably connected to the performance testing equipment 103. As the test bench 105 moves up and down, the position of the pulley 507 on the first rotating shaft 502 continuously changes. Thanks to the adaptive elastic adjustment capability of the first elastic element 512, the synchronous belt 508 can maintain a transmission connection with several pulleys 507. Thus, even when the test bench 105 drives the motor to vibrate up and down, the power of the motor output shaft can still be smoothly transmitted to the input shaft 104. Therefore, the vibration of the motor will not affect the power transmission between the motor and the input shaft 104. This allows the performance testing equipment 103 to perform accurate tests during the motor vibration simulation test, and the vibration will not cause vibration or impact to the performance testing equipment 103, thereby extending the service life of the performance testing equipment 103.

[0047] It should be noted that the specific structure of the first elastic element 512 is not limited. In this embodiment, the first elastic element 512 is set as a spring.

[0048] In one instance of this embodiment, please refer to Figure 1 , Figure 2 and Figure 6 The limiting component 6 includes two symmetrically distributed mounting brackets 601 mounted on the base 101. A top plate 603 and a bottom support 602 are mounted on the mounting brackets 601. Two guide rods 604 connected to the base 101 are mounted on the top plate 603. The guide rods 604 are slidably connected to the test table 105. A second elastic element 605 is provided on the test table 105. The second elastic element 605 is sleeved on the guide rods 604, and the end of the second elastic element 605 away from the test table 105 is connected to the adjusting component 7.

[0049] In the initial state, the test stage 105 is located on the base 602 of the mounting bracket 601, and the second elastic member 605 applies a downward elastic pressure to the test stage 105, so that the test stage 105 is confined on the base 602.

[0050] During the bump simulation test, the bump component 8 will contact the test bench 105 and drive the test bench 105 to move up and down. With the help of the second elastic element 605, the test bench 105 and the bump component 8 can be kept in close contact. This makes it easier for the bump component 8 to drive the test bench 105 to make stable up and down bumps, so as to better simulate the bump test of the motor.

[0051] It should be noted that the specific structure of the second elastic element 605 is not limited. In this embodiment, the second elastic element 605 is set as a spring.

[0052] In one instance of this embodiment, please refer to Figure 1 , Figure 2 and Figure 6 The adjustment assembly 7 includes a third telescopic member 701 mounted on the top plate 603. The telescopic end of the third telescopic member 701 is connected to an adjustment plate 702 that slides with the guide rod 604. The adjustment plate 702 is connected to the second elastic member 605.

[0053] During the up-and-down shaking process of the test bench 105 driven by the bump assembly 8, since the bump assembly 8 is driven by the input shaft 104, that is, the driving force used by the bump assembly 8 is the output power of the output shaft of the motor under test, during the process of the test bench 105 being raised by the bump assembly 8, the bump assembly 8 driven by the input shaft 104 needs to overcome the weight of the corresponding structure on the test bench 105 to drive the test bench 105 to rise, and thus the performance parameters of the motor under this load condition can be tested.

[0054] During the up-and-down shaking process of the test bench 105 driven by the bump assembly 8, in order to adjust the load on the input shaft 104, the adjustment plate 702 can be driven to move up and down along the guide rod 604 by the third telescopic member 701. This changes the compression of the second elastic member 605 in the initial state, that is, changes the downward elastic pressure applied by the second elastic member 605 to the test bench 105, and thus changes the load on the input shaft 104 driven by the bump assembly 8, thereby realizing dynamic load detection of the motor.

[0055] It should be noted that the specific structure of the third telescopic member 701 is not limited. In this embodiment, the third telescopic member 701 is set as a hydraulic rod.

[0056] In one instance of this embodiment, please refer to Figure 1 , Figure 7and Figure 8 The bumping assembly 8 includes two symmetrically distributed displacement grooves 801 formed on the base 101. The displacement grooves 801 are slidably connected to the displacement frame 802. A movable shaft 803 is rotatably arranged on the displacement frame 802. A cam 804 is installed on the movable shaft 803. A fourth telescopic member 805 connected to the displacement frame 802 is installed on the side of the base 101 away from the equipment box 102. A synchronizing member is provided between the movable shaft 803 and the input shaft 104.

[0057] The synchronizing element includes a connecting protrusion 806 installed on one end of the movable shaft 803 near the equipment box 102, and a connecting seat 807 installed on the end of the input shaft 104. The connecting seat 807 has a connecting groove 808 that mates with the connecting protrusion 806. The connecting protrusion 806 and the connecting groove 808 are regular polygons to facilitate power transmission.

[0058] In the initial state, when the test platform 105 is located on the base 602, the section with the minimum radius of the cam 804 profile is in contact with the bottom of the test platform 105.

[0059] When conducting a motor vibration simulation test, the fourth telescopic component 805 drives the positioner frame 802 to move along the positioner groove 801, causing the movable shaft 803 on the positioner frame 802 to move toward the connecting seat 807 of the input shaft 104 until the connecting protrusion 806 at the end of the movable shaft 803 is engaged in the connecting groove 808 of the connecting seat 807, thus connecting the input shaft 104 and the movable shaft 803. At this time, the power transmitted to the input shaft 104 can be driven by the synchronizing component to drive the movable shaft 803 to rotate synchronously, causing the movable shaft 803 to drive the cam 804 to rotate. Due to the presence of the limiting component 6, the cam 804 will remain in contact with the test platform 105 during the process of driving the test platform 105 to rise and fall, thereby effectively driving the test platform 105 to move up and down, which can simulate the motor being in a vibration state.

[0060] It should be noted that the specific structure of the fourth telescopic member 805 is not limited. In this embodiment, the fourth telescopic member 805 is set as a hydraulic rod.

[0061] In one instance of this embodiment, please refer to Figure 3 and Figure 5 The connecting assembly 4 includes a plurality of second telescopic members 401 installed on the outer wall of the connecting cylinder 107, and the telescopic end of the second telescopic member 401 is equipped with a keyway mating part 402 located inside the connecting cylinder 107.

[0062] When connecting the motor output shaft to the connecting cylinder 107, the moving component 2 moves the motor output shaft into the connecting cylinder 107, and the motor output shaft and the connecting cylinder 107 are coaxial, so that the keyway of the motor output shaft is aligned with the keyway mating part 402 in the connecting cylinder 107. Then, the second telescopic component 401 is activated, and the second telescopic component 401 drives the keyway mating part 402 to engage in the keyway of the motor output shaft, thereby realizing the connection between the connecting cylinder 107 and the motor output shaft, so that the motor can synchronously drive the connecting cylinder 107 to rotate when driving the output shaft to rotate.

[0063] It should be noted that the specific structure of the second telescopic member 401 is not limited. In this embodiment, the second telescopic member 401 is set as a hydraulic rod.

[0064] In one instance of this embodiment, please refer to Figure 1-3 The moving component 2 includes a slide groove 201 opened on the test platform 105, a sliding frame 202 slidably arranged in the slide groove 201, a support platform 204 fixedly connected to the sliding frame 202, a placement groove 205 opened on the support platform 204, and a first telescopic member 203 connected to the sliding frame 202 installed on the test platform 105.

[0065] Before testing the motor, the motor is placed in the placement slot 205 of the support platform 204. The placement slot 205 is adapted to the shape of the motor so that the motor can be stably placed on the support platform 204. The axis of the motor output shaft coincides with the axis of the connecting cylinder 107. Then, the sliding frame 202 is driven to move along the slide groove 201 through the first telescopic member 203 until the motor output end moves to the set position of the connecting cylinder 107.

[0066] It should be noted that the specific structure of the first telescopic member 203 is not limited. In this embodiment, the first telescopic member 203 is set as a hydraulic rod.

[0067] In one instance of this embodiment, please refer to Figure 1 and Figure 3 The fixing component 3 includes two limiting rods 301 installed on the support platform 204. Movable frames 302 are slidably arranged on both sides of the limiting rods 301. A fixing plate 303 is installed on the movable frames 302. A bidirectional screw 304 is rotatably arranged in the middle of the support platform 204 and threadedly connected to the two movable frames 302. A driving component 305 connected to the bidirectional screw 304 is installed on the side wall of the support platform 204.

[0068] In order to fix the motor placed on the placement slot 205, in this embodiment, the driving component 305 is activated, and the driving component 305 drives the bidirectional screw 304 to rotate, so that the bidirectional screw 304 drives the moving frame 302 to move along the limiting rod 301 until the fixing plate 303 completes the clamping and fixing of the motor side wall.

[0069] In addition to the motor fixing method in this embodiment, other fixing methods can also be used, such as hydraulic clamping fixing.

[0070] It should be noted that the specific structure of the drive component 305 is not limited. In this embodiment, the drive component 305 is set as a servo motor.

[0071] This invention places the motor to be tested on the moving component 2 and fixes the motor with the fixing component 3. The moving component 2 drives the motor to move so that the motor output shaft is placed inside the connecting cylinder 107. Then, the connecting component 4 connects the motor output shaft to the connecting cylinder 107. When the motor output shaft rotates, the power can be transmitted to the input shaft 104 of the performance testing device 103 through the connecting cylinder 107 and the adaptive transmission component 5. Thus, the performance of the motor can be tested by the performance testing device 103. During the motor vibration simulation test, the vibration assembly 8 is first connected to the input shaft 104. This allows the motor output shaft to simultaneously output power to the input shaft 104 and drive the vibration assembly 8. The vibration assembly 8, in conjunction with the limit assembly 6, drives the test bench 105 to move up and down repeatedly, thus simulating the vibration of the motor. Furthermore, during the vibration of the test bench 105, the adaptive transmission assembly 5 can still smoothly transmit the power from the motor output shaft to the input shaft 104 of the performance testing equipment 103, preventing the vibration of the motor from affecting the power transmission between the motor and the input shaft 104. During the motor vibration simulation test, the performance testing equipment 103 can perform accurate tests, and the vibration will not cause vibration or impact to the performance testing equipment 103, thereby extending the service life of the performance testing equipment 103. In addition, during the up-and-down vibration of the motor on the test bench 105 driven by the vibration component 8, the performance parameters of the motor output shaft under load can also be tested by the weight of the test bench 105 and other structures. With the adjustment component 7, the load of the motor output shaft can be adjusted, which can simulate the load changes of the motor in actual operation as needed, so that the test scenario is highly matched with the actual application, and the reliability of the test results is greatly improved.

[0072] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A testing device for a new energy vehicle motor, comprising a base, characterized in that, An equipment box is mounted on the base, and a performance testing device is installed inside the equipment box for testing the performance of the motor. The performance testing device is connected to an input shaft and also includes: A test bench, wherein a connecting frame is installed on the side of the test bench near the equipment box, and a connecting cylinder is rotatably installed inside the connecting frame; An adaptive transmission assembly is disposed between the connecting frame and the input shaft to achieve smooth transmission between the motor output shaft and the input shaft of the performance testing equipment. A limiting component is disposed on the base and connected to the test bench, and is used to limit the test bench. An adjustment component is disposed on a limiting component and is used to adjust the limiting constraint force of the limiting component on the test bench; A bumping assembly, which is mounted on the base, is used to cause the test bench to bump. A connecting assembly, which is disposed inside a connecting cylinder, is used to connect the motor output shaft to the connecting cylinder; A moving component, which is mounted on a test bench, is used to drive a motor to move in position; A fixing component is disposed on the moving component and is used to fix the motor.

2. The new energy vehicle motor testing device according to claim 1, characterized in that, The adaptive transmission assembly includes an adjustment box, a first rotating shaft, and a second rotating shaft. The adjustment box is connected to the side of the equipment box facing the test bench, and a mounting frame is installed on the side wall of the connecting frame. The mounting frame is rotatably connected to the first rotating shaft, and the input shaft is rotatably connected to the adjustment box. Pulleys are installed on the first rotating shaft, the second rotating shaft, and the input shaft, and several pulleys are connected by synchronous belt drive. Adjustment grooves are opened on both sides of the adjustment box, and an adjustment frame rotatably connected to the second rotating shaft is slidably arranged in the adjustment groove. A first elastic element and a telescopic rod connected to the adjustment frame are installed in the adjustment box. A first gear located in the connecting frame is installed on the first rotating shaft, and a second gear meshing with the first gear is installed on the outer wall of the connecting cylinder.

3. The new energy vehicle motor testing device according to claim 2, characterized in that, The limiting component includes two symmetrically distributed mounting brackets installed on the base. A top plate and a bottom support are installed on the mounting brackets. Two guide rods connected to the base are installed on the top plate. The guide rods are slidably connected to the test platform. A second elastic element is provided on the test platform.

4. The new energy vehicle motor testing device according to claim 3, characterized in that, The adjustment assembly includes a third telescopic member mounted on the top plate. The telescopic end of the third telescopic member is connected to an adjustment plate that slides with the guide rod. The adjustment plate is connected to a second elastic member.

5. A new energy vehicle motor testing device according to claim 4, characterized in that, The bumping assembly includes two symmetrically distributed displacement slots on the base, which are slidably connected to a displacement frame. A movable shaft is rotatably mounted on the displacement frame, and a cam is installed on the movable shaft. A fourth telescopic component connected to the displacement frame is installed on the side of the base away from the equipment box. A synchronizing component is provided between the movable shaft and the input shaft.

6. The new energy vehicle motor testing device according to claim 5, characterized in that, The synchronizing element includes a connecting protrusion installed on one end of the movable shaft near the equipment box, and a connecting seat installed on the end of the input shaft, with a connecting groove on the connecting seat that mates with the connecting protrusion.

7. The new energy vehicle motor testing device according to claim 1, characterized in that, The connecting assembly includes several second telescopic members installed on the outer wall of the connecting cylinder, and the telescopic ends of the second telescopic members are fitted with keyway mating parts located inside the connecting cylinder.

8. The new energy vehicle motor testing device according to claim 1, characterized in that, The movable component includes a slide groove on the test bench, a sliding frame slidably disposed in the slide groove, a support platform fixedly connected to the sliding frame, a placement slot on the support platform, and a first telescopic component connected to the sliding frame installed on the test bench.

9. A new energy vehicle motor testing device according to claim 8, characterized in that, The fixing assembly includes two limiting rods mounted on the support platform. Movable frames are slidably arranged on both sides of the limiting rods. Fixed plates are installed on the movable frames. A bidirectional screw is rotatably arranged in the middle of the support platform and threadedly connected to the two movable frames. A driving component connected to the bidirectional screw is installed on the side wall of the support platform.

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