Comprehensive testing device for driving motor of new energy automobile

Abstract

A new energy automobile driving motor comprehensive test device disclosed by the present invention comprises a test bench and a sliding frame fixedly installed on the upper surface of the test bench, the sliding frame is slidably connected with a transmission mechanism, the transmission mechanism is in engaged connection with a turntable mechanism, and the upper end of the turntable mechanism is fixedly connected with a driving motor. One side of the driving motor is fixedly connected with a pulling mechanism through a mounting frame, the driving motor is connected with a connecting mechanism in an inserted mode through a motor output shaft, the transmission mechanism comprises a sliding table, a transmission rod fixedly installed on the lower surface of the sliding table through a fixing block and a screw connected with the interior of the transmission rod in a meshed mode, and a spiral groove is formed in the outer surface of the transmission rod. The inner wall of the spiral groove is slidably connected with a sliding block. According to the invention, the driving cylinder and the contact strip are combined for use, so that the connection of the driving motor and the dynamometer can be quickly positioned, and the complex step of manual repeated positioning is avoided, thereby achieving the effect of high testing efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated test devices for drive motors, and particularly to an integrated test device for drive motors of new energy vehicles. Background Art

[0002] An integrated test device for drive motors of new energy vehicles is a professional device for comprehensively detecting the performance of drive motors and their control systems of new energy vehicles.

[0003] When performing a load test on a drive motor of a new energy vehicle, first, the drive motor of the new energy vehicle and the dynamometer can be docked through a coupling. Then, the rotation of the drive motor of the new energy vehicle can drive the dynamometer through the coupling, so as to judge various performances of the drive motor of the new energy vehicle in this test. However, the existing test method requires fixing the drive motor of the new energy vehicle to the coupling by bolting. At the same time, after the test is completed, it needs to be disassembled and then installed for the next drive motor test of the new energy vehicle, resulting in low test efficiency. Moreover, when testing the drive motor of the new energy vehicle, there will be a certain vibration, which will affect the data or even cause damage to the equipment through transmission at this time.

[0004] Therefore, we provide an integrated test device for drive motors of new energy vehicles. Summary of the Invention

[0005] The object of the present invention is to provide an integrated test device for drive motors of new energy vehicles aiming at the above-mentioned existing technical problems, achieving the effects of high test efficiency and reduced resonance.

[0006] In view of this, the present invention provides an integrated test device for drive motors of new energy vehicles, including a test bench, and a sliding frame fixedly installed on its upper surface. The sliding frame is slidably connected with a transmission mechanism. The transmission mechanism is meshed with a turntable mechanism. The upper end of the turntable mechanism is fixedly connected with a drive motor. One side of the drive motor is fixedly connected with a pulling mechanism through a mounting frame. The drive motor is inserted with a connecting mechanism through a motor output shaft; The transmission mechanism includes a sliding table, and a transmission rod fixedly installed on its lower surface through a fixing block and a screw rod meshed inside it. A spiral groove is formed on the outer surface of the transmission rod. A sliding block is slidably connected to the inner wall of the spiral groove. A rotating wheel is arranged on the periphery of the transmission rod. The inner wall of the rotating wheel is fixedly installed with the sliding block. A second ratchet is rotatably installed on the periphery of the rotating wheel. The second ratchet is meshed with a first ratchet. A turntable is arranged on the periphery of the rotating wheel. The inner wall of the turntable is fixedly installed with the first ratchet. A plurality of meshing teeth are fixedly installed on one side surface of the turntable; The connecting mechanism includes a driven cylinder and a driving cylinder rotatably connected to its inner wall. A plurality of positioning holes are provided in the inner wall of the driven cylinder. A fixing ball is slidably connected to the inner wall of the driving cylinder through a through hole. A plurality of engaging strips are fixedly installed on the inner wall of the driving cylinder. A contact strip is fixedly installed on one side surface of the engaging strip. An anti-vibration hole is formed through the contact strip.

[0007] Preferably, a part of the fixing ball is located outside the driving cylinder and is one-fourth of its specification.

[0008] Preferably, two symmetrically distributed support rods for sliding are fixedly installed on the periphery of the fixing ball, and two symmetrically distributed positioning springs for stability are fixedly installed on the periphery of the support rods.

[0009] Preferably, the anti-vibration holes are honeycomb-shaped and are arranged regularly in several numbers.

[0010] Preferably, the turntable is frustum-shaped. A running groove for the sliding of the sliding rod is provided on one side surface of the turntable. The sliding rod is fixedly connected to one side surface of the sliding table.

[0011] Preferably, the turntable mechanism includes a test plate in the shape of an inverted frustum and a fixed plate rotatably connected thereto. A gear is fixedly installed on the peripheral surface of the test plate, and the gear is meshed with the engaging gear.

[0012] Preferably, the pulling mechanism includes a sliding rod and a spring for pushing fixedly installed on the upper half surface thereof. One end of the sliding rod is slidably connected to the turntable mechanism, and the other end of the spring is fixedly connected to the driving motor through a mounting frame.

[0013] Preferably, a guiding groove is provided on the upper surface of the fixed plate, and the inner wall of the guiding groove is slidably connected to the lower half periphery of the sliding rod.

[0014] Preferably, the guiding groove is in the shape of a water droplet, and a fixing groove is provided on one side surface of the guiding groove.

[0015] Preferably, the bottom of the test plate is rotatably connected to the inner wall of the test bench through a support column, and the bottom of the fixed plate is fixedly connected to the test bench through a second support column.

[0016] Compared with the prior art, the present invention provides a comprehensive test device for a driving motor of a new energy vehicle, having the following beneficial effects: In the present invention, by combining the driving cylinder and the contact strip, the connection between the driving motor and the dynamometer can be quickly positioned, avoiding the complex steps of manual repeated positioning, thereby achieving the effect of high test efficiency.

[0017] In the present invention, by combining the use of a spiral groove, a rotating wheel, and a turntable, it is possible to convert a lateral movement into a rotation, thereby enabling the turntable to drive the turntable mechanism and allowing the drive motor to be docked, thus eliminating the complex steps of manual hoisting and transportation, and achieving the effect of high testing efficiency.

[0018] In the present invention, by combining the use of a contact strip and anti-vibration holes, the anti-vibration holes can be squeezed into a double-layered shape, making it in an approximate fault state, capable of achieving the effect of blocking resonance, and thus achieving the effect of reducing resonance.

[0019] In the present invention, by combining the use of fixed balls and positioning springs, it can generate a certain flexibility, and while maintaining the connection strength, it can suppress the transmission of some vibrations, thus achieving the effect of reducing resonance.

[0020] In the present invention, by providing a plurality of anti-vibration holes, the contact strip is divided into multiple micro elastic units. Each unit can independently undergo small deformations, dispersing the vibration energy transmitted by the drive motor in multiple directions and frequencies, avoiding energy concentration causing resonance, and thus achieving the effect of reducing resonance. At the same time, a porous structure is adopted, and its inherent frequency range is relatively wide, which can cover multiple vibration frequency ranges of the drive motor from low speed to high speed, suppressing resonance at different rotational speeds, and further achieving the effect of reducing resonance. Moreover, the uniform arrangement will make the force distribution the most uniform, avoiding local stress concentration, which is superior to a randomly arranged porous structure, and thus further achieving the effect of reducing resonance.

[0021] In the present invention, by combining the use of anti-vibration holes and fixed balls, the anti-vibration holes mainly consume vibration energy through deformation, while the fixed balls can limit the relative displacement between the driving cylinder and the driven cylinder through spring positioning, keeping the deformation of the anti-vibration holes within the designed range, avoiding the reduction of resonance failure caused by excessive displacement. At the same time, the combination of the two can form a composite structure of elastic connection and rigid positioning, generating a synergistic effect in suppressing resonance. The fixed balls limit low-frequency large-displacement vibrations, and the anti-vibration holes absorb high-frequency small-amplitude vibrations, thus further achieving the effect of reducing resonance.

[0022] In the present invention, by providing a slide bar and a spring, it can push the drive motor, enabling it to automatically dock with the dynamometer, eliminating the steps of manual docking, and thus achieving the effect of high testing efficiency.

[0023] In the present invention, by providing a turntable, it can rotate the turntable mechanism, enabling the dynamometer to automatically connect to the next drive motor for testing, thus avoiding the complex steps of manual operation and achieving the effect of high testing efficiency.

[0024] In the present invention, by combining the use of the first ratchet and the second ratchet, rotation can be transmitted when the transmission rod moves forward, and the transmission can be consumed when the transmission rod moves backward, so as to ensure the smooth connection and disconnection between the dynamometer and the drive motor, eliminating the steps of manual installation and removal, and enabling the rapid connection of the next drive motor, thus achieving the effect of high test efficiency.

[0025] In the present invention, by providing a water-drop-shaped guiding groove, the sliding rod can slide smoothly therein. At the same time, a huge thrust can be generated on the spring at the water-drop-shaped tip, so that the drive motor can be positioned and connected sufficiently, thus achieving the effect of accurate positioning. At the same time, the pushing continuously applies a thrust to the drive motor, thus achieving the effect of stable test process.

[0026] In the present invention, by providing a fixed ball, the connection between the driving cylinder and the driven cylinder can be completed. At the same time, when being extruded by the output shaft of the drive motor, it can be more firmly located inside the driving cylinder and the driven cylinder, thus achieving the effect of stable connection.

[0027] The parts not involved in this device are the same as or can be implemented by the prior art. The structure of the present invention is simple and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 2 is a schematic diagram of the transmission structure of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 3 is a schematic diagram of the top view structure of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 4 is a schematic diagram of the sliding table structure of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 5 is a schematic diagram of the meshing bar structure of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 6 is a schematic diagram of the driving cylinder structure of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 7 is a schematic diagram of the enlarged structure at A of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 8 is a schematic diagram of the enlarged structure at B of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 9 is a schematic diagram of the driven hole structure of a comprehensive test device for a drive motor of a new energy vehicle proposed by the present invention; Figure 10 Schematic diagram of the sliding rod structure of a comprehensive test device for a new energy vehicle drive motor proposed by the present invention; Figure 11 Schematic diagram of the ratchet structure of a comprehensive test device for a new energy vehicle drive motor proposed by the present invention; Figure 12 Schematic diagram of the spiral groove structure of a comprehensive test device for a new energy vehicle drive motor proposed by the present invention; Figure 13 Schematic diagram of the meshing cross-section structure of a comprehensive test device for a new energy vehicle drive motor proposed by the present invention; Figure 14 Schematic diagram of the turntable structure of a comprehensive test device for a new energy vehicle drive motor proposed by the present invention; Figure 15 Schematic diagram of the rotating wheel structure of a comprehensive test device for a new energy vehicle drive motor proposed by the present invention.

[0029] In the figure: 1, test bench; 2, sliding frame; 3, drive motor; 4, connection mechanism; 5, transmission mechanism; 6, turntable mechanism; 7, gear teeth; 401, driven cylinder; 402, driving cylinder; 403, meshing strip; 404, fixed ball; 406, contact strip; 407, positioning hole; 408, positioning spring; 409, support rod; 410, anti-vibration hole; 501, sliding table; 502, screw; 503, transmission rod; 504, turntable; 505, sliding block; 506, rotating wheel; 507, spiral groove; 508, meshing tooth; 509, first ratchet tooth; 510, second ratchet tooth; 601, test disc; 602, fixed disc; 603, guide groove; 9, pulling mechanism; 901, sliding rod; 902, spring. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] Embodiment: A comprehensive test device for a new energy vehicle drive motor, as Figures 1 - 15As shown in the figure, it includes a test bench 1 and a sliding frame 2 fixedly installed on its upper surface. A transmission mechanism 5 is slidably connected to the sliding frame 2. The transmission mechanism 5 is meshed with a turntable mechanism 6. A driving motor 3 is fixedly connected to the upper end of the turntable mechanism 6. A pulling mechanism 9 is fixedly connected to one side of the driving motor 3 through a mounting frame. The driving motor 3 is inserted with a connecting mechanism 4 through a motor output shaft. The transmission mechanism 5 includes a sliding table 501, a transmission rod 503 fixedly installed on its lower surface through a fixing block, and a screw 502 meshed inside it. A spiral groove 507 is formed on the outer surface of the transmission rod 503. A sliding block 505 is slidably connected to the inner wall of the spiral groove 507. A rotating wheel 506 is arranged on the periphery of the transmission rod 503. The inner wall of the rotating wheel 506 is fixedly installed with the sliding block 505. A second ratchet 510 is rotatably installed on the periphery of the rotating wheel 506. The second ratchet 510 is meshed with a first ratchet 509. A turntable 504 is arranged on the periphery of the rotating wheel 506. The inner wall of the turntable 504 is fixedly installed with the first ratchet 509. A plurality of meshing teeth 508 are fixedly installed on one side surface of the turntable 504. The connecting mechanism 4 includes a driven cylinder 401 and a driving cylinder 402 rotatably connected to its inner wall. A plurality of positioning holes 407 are formed in the inner wall of the driven cylinder 401. A fixing ball 404 is slidably connected to the inner wall of the driving cylinder 402 through a through hole. A plurality of meshing strips 403 are fixedly installed on the inner wall of the driving cylinder 402. A contact strip 406 is fixedly installed on one side surface of the meshing strip 403. A vibration-proof hole 410 is formed through the inside of the contact strip 406.

[0033] The meshing strip 403 is made of wear-resistant material. One side of the contact strip 406 is in a slope shape and is made of a material with high smoothness and wear resistance.

[0034] Among them, when testing the drive motor of a new energy vehicle, first fix the motor on the turntable mechanism 6, then turn on the motor to drive the screw rod 502. The screw rod 502 can drive the sliding table 501 to start moving towards the turntable mechanism 6. At this time, through the movement of the sliding table 501, the transmission rod 503 can be driven to move towards the turntable mechanism 6. At this time, the spiral groove 507 causes the sliding block 505 to slide along its shape. At this time, the sliding block 505 can drive the rotating wheel 506 to start rotating, thereby converting the lateral movement of the sliding table 501 into rotation. At this time, the second ratchet 510 meshes with the first ratchet 509. At this time, the first ratchet 509 can drive the turntable 504, and at the same time, the meshing teeth 508 start to rotate. At this time, the turntable mechanism 6 engaged with it starts to rotate. At this time, the drive motor 3 located on the turntable mechanism 6 starts to be rotated. At the same time, the drive motor 3 drives the pulling mechanism 9 to start sliding on the turntable mechanism 6. At this time, when the sliding table 501 drives the dynamometer to move to the specified position, stop the operation of the motor, the sliding table 501 stops sliding, and at the same time the turntable mechanism 6 stops rotating. At this time, the pulling mechanism 9 can move forward through the shape of the turntable mechanism 6. At this time, the pulling mechanism 9 can push the drive motor 3 forward. At this time, the drive motor 3 slides forward on the turntable mechanism 6. At this time, the output shaft of the drive motor 3 contacts the inner wall of the active cylinder 402 and slides into the active cylinder 402 at the same time. At this time, the meshing strip 403 contacts the groove wall on the output shaft of the drive motor 3 and is squeezed and deformed. At the same time, the contact strip 406 meshes with the groove. At this time, the anti-vibration hole 410 deforms. At the same time, the surface of the drive motor 3 can squeeze the fixing ball 404. At this time, the fixing ball 404 moves outward, and at the same time, a part of the fixing ball 404 enters the positioning hole 407 inside the driven cylinder 401. When the thrust of the pulling mechanism 9 is reduced, at this time, the output shaft of the drive motor 3 is connected to the active cylinder 402, and at the same time, the active cylinder 402 is fixedly connected to the driven cylinder 401.

[0035] Meanwhile, when the output shaft of the driving motor 3 moves into the interior of the driving cylinder 402 and the groove of the output shaft of the driving motor 3 cannot directly engage with the engaging bar 403, the output shaft of the driving motor 3 first contacts the contact bar 406. At this time, the pushing of the pulling mechanism 9 continues. At this time, the ramp surface of the contact bar 406 contacts the output shaft of the driving motor 3, and the contact point between the contact bar 406 and the output shaft of the driving motor 3 deforms. At the same time, the anti-vibration holes 410 also deform. Since there are several anti-vibration holes 410, the deformations of the anti-vibration holes 410 are different at this time. At the same time, the deformations of the anti-vibration holes 410 generate torque, which causes different forces on the contact bar 406. At this time, the contact bar 406 transmits the thrust and torque forces to the driving cylinder 402 through the engaging bar 403. At this time, the driving cylinder 402 is subjected to the thrust and torque forces, and the driving cylinder 402 is forced to rotate. At the same time, when the engaging bar 403 rotates to the groove of the output shaft of the driving motor 3, the output shaft of the driving motor 3 enters the interior of the driving cylinder 402, and at the same time, the fixing ball 404 is pushed into the interior of the driven cylinder 401, thus completing the connection between the driving motor 3 and the dynamometer.

[0036] When the test is over and the connection needs to be released, the motor rotates in reverse to reverse the screw rod 502 at this time. At this time, the sliding table 501 moves in the reverse direction. At this time, the transmission rod 503 moves in the reverse direction. At the same time, the sliding block 505 rotates on the spiral groove 507, thereby rotating the rotating wheel 506. At this time, the second ratchet 510 rotates and contracts towards the center point of the rotating wheel 506. At this time, the first ratchet 509 cannot rotate, so that the turntable mechanism 6 cannot rotate. At this time, the sliding table 501 can drive the dynamometer to be smoothly disconnected from the driving motor 3, thus eliminating the need for manual disassembly steps and enabling the connection of the next driving motor 3 to be carried out immediately, thereby achieving the effect of high test efficiency.

[0037] By combining the spiral groove 507, the rotating wheel 506 and the turntable 504, the lateral movement is transformed into rotation, and the turntable 504 drives the turntable mechanism 6 to drive the driving motor 3 to rotate and connect, eliminating the complex steps of manual handling, lifting and disassembly, thus achieving the effect of high test efficiency. By setting the driving cylinder 402 and the contact strip 406 inside it, it can quickly position the output shaft of the driving motor 3, avoiding the complex steps of manual repeated positioning, thus achieving the effect of high test efficiency. By setting the fixing ball 404, it can be squeezed by the output shaft of the driving motor 3 and enter the driven cylinder 401 to complete the fixed connection of the driving cylinder 402 to the driven cylinder 401. At the same time, due to the extrusion of the output shaft of the driving motor 3, the fixing ball 404 can be held more tightly, and at the same time, the tightness and firmness between the driving cylinder 402 and the driven cylinder 401 can be ensured, thus achieving the effect of stable connection. By setting the contact strip 406 and the anti-vibration holes 410, it can fit more tightly with the output shaft of the driving motor 3, thus achieving the stable effect during the test of the driving motor 3. And the anti-vibration holes 410 are squeezed into a double-layer shape. Under the operation of the driving motor 3, the resonance can be blocked through such an approximate fault state, thus achieving the effect of reducing resonance. By setting the first ratchet 509 and the second ratchet 510, it can transmit the forward rotation of the rotating wheel 506 and cancel the reverse rotation of the rotating wheel 506, ensuring that the sliding table 501 can drive the dynamometer to conduct the test and disconnect from the driving motor 3 after the test is completed, enabling the test connection and the test of the next driving motor 3 to proceed smoothly, thus achieving the effects of stable operation and high test efficiency. By setting the turntable 504, it can rotate the turntable mechanism 6, enabling the dynamometer to automatically connect to the next driving motor 3 for testing, thus avoiding the complex steps of manual operation and achieving the effect of high test efficiency.

[0038] As Figures 1 - 15 shown, a part of the fixing ball 404 is located outside the driving cylinder 402 and is one-fourth of its specification.

[0039] Two symmetrically distributed support rods 409 for sliding are fixedly installed on the peripheral side of the fixing ball 404, and two symmetrically distributed positioning springs 408 for stability are fixedly installed on the peripheral side of the support rods 409.

[0040] The anti-vibration holes 410 are honeycomb-shaped and are arranged regularly in several numbers.

[0041] A quarter of the fixed ball 404 is located outside the driving cylinder 402, which can ensure the normal rotation between the driven cylinder 401 and the driving cylinder 402, thus ensuring the automatic calibration effect when the output shaft of the driving motor 3 is connected to it, avoiding the steps of manual calibration, and achieving the effect of high test efficiency. At the same time, when the fixed ball 404 is squeezed, the fixed ball 404 can completely enter the interior of the driving cylinder 402 and the surface of the fixed ball 404 contacts the output shaft of the driving motor 3, ensuring the stability when the driving cylinder 402 drives the driven cylinder 401 to rotate, and achieving the effect of stability during the test. At the same time, the support rod 409 and the positioning spring 408 can ensure the normal movement of the fixed ball 404. By setting the combination of the fixed ball 404 and the positioning spring 408, it generates a certain flexibility, which can suppress part of the vibration transmission while maintaining the connection strength, thus achieving the effect of reducing resonance. At the same time, the dense anti-vibration holes 410 divide the contact strip 406 into multiple micro-elastic units, and each unit can independently undergo small deformations, dispersing the vibration energy transmitted by the driving motor 3 in multiple directions and frequencies, avoiding the concentration of energy causing resonance, and thus achieving the effect of reducing resonance. At the same time, the porous structure is adopted, and its inherent frequency range is relatively wide, which can cover multiple vibration frequency ranges of the driving motor 3 from low speed to high speed, suppressing resonance at different rotational speeds, and further achieving the effect of reducing resonance. And the uniform arrangement makes the force on it the most uniform, avoiding local stress concentration, which is superior to the porous structure with random arrangement, thus achieving the effect of reducing resonance. The anti-vibration holes 410 mainly consume vibration energy through deformation, while the fixed ball 404 can limit the relative displacement between the driving cylinder 402 and the driven cylinder 401 through spring positioning, making the deformation of the anti-vibration holes within the design range, avoiding the reduction of resonance failure caused by excessive displacement. At the same time, the combination of the two can form a composite structure of elastic connection and rigid positioning, producing a synergistic effect in suppressing resonance. The fixed ball 404 restricts low-frequency large-displacement vibrations, and the anti-vibration holes 410 absorb high-frequency small-amplitude vibrations, further achieving the effect of reducing resonance.

[0042] As Figures 1 - 15 shown, the turntable 504 is frustum-shaped, and a running groove for the sliding of the sliding rod is provided on one side surface of the turntable 504. The sliding rod is fixedly connected to one side surface of the sliding table 501.

[0043] The frustum-shaped turntable 504 can be in the shape of a bevel gear, so that it can mesh with the turntable mechanism 6 to complete the transmission of power. At the same time, the sliding rod can support the rotation of the turntable 504 so that it cannot fall and move and can rotate normally. At the same time, the turntable 504 meshes with the turntable mechanism 6, which can further ensure that it cannot move, thus achieving the stability of the docking between the dynamometer and the driving motor 3.

[0044] As Figures 1 - 15As shown, the turntable mechanism 6 includes a test disk 601 in the shape of an inverted frustum, and a fixed disk 602 rotatably connected thereto. A gear 7 is fixedly installed on the peripheral surface of the test disk 601, and the gear 7 is meshed and connected with the meshing tooth 508.

[0045] The pulling mechanism 9 includes a sliding rod 901, and a spring 902 for pushing fixedly installed on the upper half surface thereof. One end of the sliding rod 901 is slidably connected to the turntable mechanism 6, and the other end of the spring 902 is fixedly connected to the drive motor 3 through a mounting frame.

[0046] A guide groove 603 is formed on the upper surface of the fixed disk 602, and the inner wall of the guide groove 603 is slidably connected to the lower half circumference of the sliding rod 901.

[0047] The guide groove 603 is in the shape of a water droplet, and a groove for fixing is formed on one side surface of the guide groove 603.

[0048] The bottom of the test disk 601 is rotatably connected to the inner wall of the test bench 1 through a support column, and the bottom of the fixed disk 602 is fixedly connected to the test bench 1 through a second support column.

[0049] When the meshing tooth 508 rotates the test disk 601 through the gear 7, at the same time, the fixed disk 602 remains stationary. At the same time, the drive motor 3 rotates on the test disk 601, and the sliding rod 901 rotates with it and slides in the guide groove 603. At the same time, the water droplet-shaped guide groove 603 enables the sliding rod 901 to slide along its shape. At this time, the spring 902 is subjected to a thrust, but the thrust is not sufficient to push the drive motor 3. At this time, the spring 902 contracts. When the sliding rod 901 moves to the tip of the water droplet, at this time, the thrust received by the spring 902 is the largest, and the spring 902 contracts to the limit. At this time, the spring 902 transmits the thrust to the outer frame of the drive motor 3, and the elastic force and the thrust together move the outer frame to one side. At the same time, the spring 902 expands. At this time, the output shaft of the drive motor 3 completely enters the inside of the driving cylinder 402, thus completing the automatic docking, reducing the steps of manual docking, and thus achieving the effect of high test efficiency. At this time, the elasticity of the spring 902 is not completely released, and the spring is subjected to a continuous thrust at the tip of the water droplet-shaped guide groove 603. At this time, the spring 902 will apply a continuous thrust to the drive motor 3 to keep the drive motor 3 stable, thus achieving the stable effect during the test process. By setting the sliding rod 901 and the spring 902, it can push the drive motor 3 and automatically dock the dynamometer, eliminating the steps of manual docking, thus achieving the effect of high test efficiency. Through.

[0050] Working principle: When testing the drive motor 3, the screw rod 502 rotates, the sliding table 501 drives the dynamometer to move. At the same time, the transmission rod 503 moves, the sliding block 505 rotates on the spiral groove 507, the rotating wheel 506 rotates, the second ratchet 510 rotates, the first ratchet 509 rotates, the turntable 504 rotates, the meshing teeth 508 rotate, the gear teeth 7 rotate, the test disc 601 rotates, the drive motor 3 rotates, the slide bar 901 slides, the spring 902 contracts, the screw rod 502 stops rotating, the spring 902 expands, the drive motor 3 moves, the output shaft of the drive motor 3 is docked with the driving cylinder 402, and the output shaft enters the inside of the driving cylinder 402. The fixed ball 404 moves outward, the meshing strip 403 contacts the output shaft, and the contact strip 406 meshes with the output shaft. When the test is over, the screw rod 502 rotates in reverse, the sliding table 501 moves in the reverse direction, the transmission rod 503 moves, the sliding block 505 rotates on the spiral groove 507, the rotating wheel 506 rotates, the second ratchet 510 rotates, and the first ratchet 509 does not rotate.

[0051] As described above, only the preferred specific embodiments of the present invention are provided, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An integrated test device for a driving motor of a new energy vehicle, comprising a test bench (1) and a sliding frame (2) fixedly installed on its upper surface, characterized in that, The sliding frame (2) is slidably connected with a transmission mechanism (5), the transmission mechanism (5) is meshed with a turntable mechanism (6), a driving motor (3) is fixedly connected to the upper end of the turntable mechanism (6), a pulling mechanism (9) is fixedly connected to one side of the driving motor (3) through a mounting frame, and a connecting mechanism (4) is inserted into the driving motor (3) through a motor output shaft; The transmission mechanism (5) includes a sliding table (501), a transmission rod (503) fixedly installed on its lower surface through a fixing block, and a screw rod (502) meshed inside it. A spiral groove (507) is formed on the outer surface of the transmission rod (503), a sliding block (505) is slidably connected to the inner wall of the spiral groove (507), a rotating wheel (506) is arranged on the periphery of the transmission rod (503), the inner wall of the rotating wheel (506) is fixedly installed with the sliding block (505), a second ratchet tooth (510) is rotatably installed on the periphery of the rotating wheel (506), the second ratchet tooth (510) is meshed with a first ratchet tooth (509), a turntable (504) is arranged on the periphery of the rotating wheel (506), the inner wall of the turntable (504) is fixedly installed with the first ratchet tooth (509), and a plurality of meshing teeth (508) are fixedly installed on one side surface of the turntable (504); The connecting mechanism (4) includes a driven cylinder (401) and a driving cylinder (402) rotatably connected to its inner wall. A plurality of positioning holes (407) are formed in the inner wall of the driven cylinder (401). A fixing ball (404) is slidably connected to the inner wall of the driving cylinder (402) through a through hole. A plurality of meshing strips (403) are fixedly installed on the inner wall of the driving cylinder (402). A contact strip (406) is fixedly installed on one side surface of the meshing strip (403). An anti-vibration hole (410) is formed through the inside of the contact strip (406).

2. The integrated test device for a new energy vehicle drive motor according to claim 1, wherein, A part of the fixing ball (404) is located outside the driving cylinder (402) and is one quarter of its specification.

3. The integrated test device for a new energy vehicle drive motor according to claim 2, characterized in that Two symmetrically distributed support rods (409) for sliding are fixedly installed on the periphery of the fixing ball (404), and two symmetrically distributed positioning springs (408) for stability are fixedly installed on the periphery of the support rods (409).

4. The integrated test device for a new energy vehicle drive motor according to claim 1, characterized in that, The anti-vibration hole (410) is honeycomb-shaped and is arranged in a plurality of regular arrangements.

5. An integrated test device for a new energy vehicle drive motor according to claim 1, characterized in that, The turntable (504) is frustum-shaped, and a running groove for sliding a sliding rod is formed on one side surface of the turntable (504). The sliding rod is fixedly connected to one side surface of the sliding table (501).

6. The integrated test device for a new energy vehicle drive motor according to claim 1, characterized in that, The turntable mechanism (6) includes an inverted frustum-shaped test disc (601) and a fixed disc (602) rotatably connected to it. Gear teeth (7) are fixedly installed on the peripheral surface of the test disc (601), and the gear teeth (7) are meshed with the meshing teeth (508).

7. The integrated test device for a new energy vehicle drive motor according to claim 1, characterized in that, The pulling mechanism (9) includes a sliding rod (901), and a spring (902) for pushing fixedly installed on the upper half surface thereof. One end of the sliding rod (901) is slidably connected to the turntable mechanism (6), and the other end of the spring (902) is fixedly connected to the driving motor (3) through a mounting frame.

8. An integrated test device for a new energy vehicle drive motor according to claim 6, characterized in that, A guiding groove (603) is formed on the upper surface of the fixed disk (602), and the inner wall of the guiding groove (603) is slidably connected to the circumferential side of the lower half of the sliding rod (901).

9. The integrated test device for a new energy vehicle drive motor according to claim 8, wherein The guiding groove (603) is in a water droplet shape, and a groove for fixing is formed on one side surface of the guiding groove (603).

10. The integrated test device for a new energy vehicle drive motor according to claim 6, characterized in that, The bottom of the test disk (601) is rotatably connected to the inner wall of the test bench (1) through a support column, and the bottom of the fixed disk (602) is fixedly connected to the test bench (1) through a second support column.

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