New energy automobile coaxial speed reducer testing device

Abstract

The invention discloses a new energy automobile coaxial speed reducer testing device, and relates to the technical field of transmission mechanism testing, and the device is provided with a plurality of installation bins for the installation of coaxial speed reducers, so that the device can carry out the testing operation of a plurality of coaxial speed reducers at the same time. The test efficiency of the coaxial speed reducer of the new energy automobile can be effectively improved, a contrast test can be conveniently carried out, meanwhile, multiple coaxial speed reducers can be connected into the same servo motor at the same time by means of meshing of a gear ring and multiple first gears, the use amount of the servo motor can be reduced, the test cost can be reduced, and the test efficiency can be improved. The power source stability and consistency during the testing of the plurality of coaxial speed reducers can be ensured, and the accuracy during the simultaneous testing of the plurality of coaxial speed reducers can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of transmission mechanism testing, and particularly to a testing device for a coaxial reducer of a new energy vehicle. Background Art

[0002] The coaxial reducer is one of the core components in the transmission mechanism of a new energy vehicle. The quality of its performance directly affects the power transmission efficiency, energy consumption, driving smoothness and comfort of the whole vehicle. Therefore, in the process of research and development and production of the coaxial reducer, a comprehensive and accurate test of the coaxial reducer is a key process to ensure its performance and quality. In the prior art, a coaxial reducer testing device is usually used to complete this operation.

[0003] In the actual use process of the existing coaxial reducer testing device, restricted by the installation position, usually only a single coaxial reducer is tested at the same time, which makes it difficult to form a control test under different working environments through the simultaneous testing of multiple coaxial reducers. During the testing process, there is a lack of comparison reference, and it is difficult to quickly, comprehensively and accurately evaluate the influence of different factors on the performance of the coaxial reducer. If the single-installation-position testing device needs to obtain control test data, multiple testing operations need to be carried out again, which not only leads to low testing efficiency, but also makes it difficult to accurately control the data setting during multiple tests, resulting in the accuracy and reliability of the test results being affected.

[0004] Therefore, a testing device for a coaxial reducer of a new energy vehicle is proposed to solve some problems existing in the above prior art. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the coaxial reducer testing device of a new energy vehicle in the prior art usually adopts a single-installation-position usage mode, which makes it difficult to conduct a control test on multiple coaxial reducers simultaneously, affecting the testing efficiency and accuracy, and to propose a testing device for a coaxial reducer of a new energy vehicle.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solutions:

[0007] A coaxial reducer test device for a new energy vehicle, comprising an outer frame. A first turntable and a second turntable are respectively arranged on the left and right sides of the outer frame. A plurality of circumferentially distributed installation bins are installed between the first turntable and the second turntable. A first rotating shaft corresponding to each of the plurality of installation bins rotates in the second turntable, and the first rotating shaft extends into the corresponding installation bin. A first gear is fixed on the first rotating shaft. A toothed ring is sleeved outside the numerous first gears, and the toothed ring meshes with the first gears. A servo motor is installed on the outer frame. A second rotating shaft corresponding to each of the plurality of installation bins rotates in the first turntable, and the second rotating shaft extends into the corresponding installation bin. A test sensor corresponding to the plurality of second rotating shafts is fixed in the first turntable. A plurality of coaxial reducers to be tested are installed in the plurality of installation bins. The input shaft of the coaxial reducer is connected to the first rotating shaft, and the output shaft of the coaxial reducer is connected to the second rotating shaft.

[0008] Preferably, the first turntable and the second turntable are coaxially arranged and rotatably connected to the outer frame. They are fixedly connected between the first turntable and the second turntable. A rotating cylinder is movably sleeved outside the first rotating shaft, and the rotating cylinder is fixedly connected to the corresponding installation bin. The installation bin is rotatably connected to the first turntable and the second turntable through the rotating cylinder.

[0009] Preferably, a first sprocket is fixed on each rotating cylinder. A fixed shaft is fixed on the outer frame and rotatably installed at the axial center position in the second turntable, and a second sprocket corresponding to each of the plurality of first sprockets is fixed on the fixed shaft. A chain is sleeved in a transmission manner between the second sprocket and the corresponding first sprocket.

[0010] Preferably, an operating table is fixed on the outer frame at the middle position in the front of the first turntable and the second turntable. An installation seat is placed in each installation bin. The coaxial reducer is fixed in the installation seat. A first connector is installed at the right end of the installation bin and the installation seat, and a second connector is installed at the left end of the installation bin and the installation seat.

[0011] Preferably, a first guide rail arranged longitudinally is fixed on the top of the operating table. A second guide rail arranged longitudinally is fixed in the installation bin, and the second guide rail is correspondingly arranged with the first guide rail. A sliding table slides on the second guide rail, and the installation seat is fixed on the sliding table.

[0012] Preferably, an outer toothed ring is fixedly arranged on the outside of the second turntable, and the outer size of the outer toothed ring is adapted to the outer size of the toothed ring. A shaft frame slides in the outer frame, and a second gear meshing outside the toothed ring rotates in the shaft frame. A spline shaft is slidably inserted into the second gear, and the spline shaft is connected to the drive shaft of the servo motor. An electric push rod arranged parallel to the spline shaft is fixed on the outer frame, and the telescopic end of the electric push rod is fixed to the shaft frame.

[0013] Preferably, positioning holes corresponding to the plurality of installation bins are formed in the second turntable, positioning pins corresponding to the positioning holes are slidably inserted into the outer frame, and a first spring for elastically supporting the positioning pins is movably sleeved on the positioning pins.

[0014] Preferably, the first connector includes a first round box fixedly connected to the first rotating shaft, a first spline cylinder is fixed to the left side of the first round box, a first magnet is fixed at the axial center position inside the first round box, a second spline cylinder rotates on the right side of the mounting seat, and a first spline rod adapted to the first spline cylinder is fixed to the right end of the second spline cylinder. A second spring for elastically supporting the second spline cylinder is movably sleeved on the outer side of the second spline cylinder. A second spline rod is slidably inserted into the left end of the second spline cylinder. The second connector includes a third spline cylinder rotatably mounted on the left side of the mounting seat, a third spline rod is slidably inserted into the right end of the third spline cylinder, a second round box is fixed to the left end of the third spline cylinder, a fourth spline cylinder is fixed to the left side of the second round box, a second magnet is fixed at the axial center position inside the second round box, a fifth spline cylinder is fixed to the right end of the second rotating shaft, and a fourth spline rod is slidably inserted into the right end of the fifth spline cylinder. A third spring fixedly connected to the fourth spline rod is fixed inside the fifth spline cylinder.

[0015] Preferably, magnetic isolation mechanisms are installed in both the first round box and the second round box. The magnetic isolation mechanism includes magnetic isolation plates symmetrically and slidably installed in the first round box or the second round box, and a fourth spring for elastically supporting the magnetic isolation plates. The symmetrically arranged magnetic isolation plates are elastically supported by the fourth spring, approach and close to each other, and shield the first magnet or the second magnet.

[0016] Preferably, a magnetic coupling is connected between the drive shaft of the servo motor and the spline shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] 1. In the present invention, by providing a plurality of installation bins for installing coaxial speed reducers, the device can perform test operations on multiple coaxial speed reducers simultaneously, which can not only effectively improve the efficiency of testing the coaxial speed reducers of new energy vehicles, but also facilitate comparative testing. At the same time, by means of the meshing of the toothed ring and many first gears, many coaxial speed reducers can be connected to the same servo motor simultaneously, which is beneficial to reducing the usage of servo motors, not only reducing the test cost, but also ensuring the stability and consistency of the power source during the testing of multiple coaxial speed reducers, which is beneficial to ensuring the accuracy during the simultaneous testing of multiple coaxial speed reducers;

[0019] 2. In the present invention, by rotatably installing the first turntable and the second turntable in the outer frame, the positions of the numerous installation bins arranged around the first turntable and the second turntable can be adjusted by means of the rotation of the first turntable and the second turntable, so that the numerous installation bins can be adjusted to the front position one by one, and the installation of the coaxial reducer can be completed on the operation table outside the installation bin, and quickly moved to the installation bin, which is conducive to improving the efficiency of installing numerous coaxial reducers in the installation bin, and to a certain extent, improving the efficiency of the coaxial reducer testing process of new energy vehicles;

[0020] 3. In the present invention, the installation bin is rotatably connected with the first rotating disk and the second rotating disk through the rotating drum, and the rotating drum is transmission-connected with the fixed shaft whose axial center position is constantly set through the engagement between the first sprocket, the second sprocket and the chain, so that during the rotation adjustment process of the second rotating disk, the rotating drum will be driven to rotate in the opposite direction by the same angle, so that the installation bin fixedly connected with the rotating drum always maintains a stable upright state, so that many installation bins will not be tilted due to the rotation of the first rotating disk and the second rotating disk, which is conducive to ensuring the stability of the coaxial reducer installed in the installation bin by the staff;

[0021] 4. In the present invention, the outer gear ring is fixed around the outer side of the second rotating disk, and the outer size of the outer gear ring is set to match the outer size of the gear ring. By sliding the second gear left and right, the second gear can be meshed with the gear ring and the outer gear ring respectively, so that the servo motor can not only provide rotational power during the coaxial reducer test process, but also provide power for the rotation adjustment of the first rotating disk and the second rotating disk during the disassembly and assembly of the coaxial reducer, further reducing the usage of the servo motor, not only improving the convenience of operation when the device is used, but also effectively reducing the manufacturing cost of the device, as well as the energy consumption during the test, to achieve green and energy-saving test operation;

[0022] 5. In the present invention, when no test is performed, the first magnet and the second magnet are respectively shielded by the magnetic isolation plates correspondingly arranged in the first round box and the second round box, and the first magnet and the second magnet cannot magnetically attract the first spline rod and the fourth spline rod through the magnetic isolation plates, which makes the first connector and the second connector both in an interrupted state. In this state, the mounting seat can be smoothly moved into the mounting bin, and can also be smoothly taken out of the mounting seat, which can effectively ensure the convenience and smoothness of the device to achieve disassembly and assembly of the coaxial reducer through the movement of the mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 is the perspective view of the present invention;

[0025] Figure 2 is the perspective view of the toothed ring, outer gear ring and second gear of the present invention;

[0026] Figure 3 is the perspective view of the rotating cylinder, first sprocket, fixed shaft, second sprocket and chain of the present invention;

[0027] Figure 4 is the perspective view when the mounting base of the present invention is taken out from the installation bin;

[0028] Figure 5 is the exploded view of the first connector and the second connector of the present invention;

[0029] Figure 6 is the front view of the present invention;

[0030] Figure 7 of the present invention Figure 6 is the cross-sectional view taken along line A-A;

[0031] Figure 8 is the top view of the present invention;

[0032] Figure 9 of the present invention Figure 8 is the cross-sectional view taken along line B-B;

[0033] Figure 10 of the present invention Figure 8 is the cross-sectional view taken along line C-C.

[0034] Reference numerals in the figure:

[0035] 1. Outer frame; 101. First turntable; 102. Second turntable; 103. Installation bin; 104. First rotating shaft; 105. First gear; 106. Toothed ring; 107. Servo motor; 108. Second rotating shaft; 109. Test sensor;

[0036] 2. Rotating cylinder; 201. First sprocket; 202. Fixed shaft; 203. Second sprocket; 204. Chain;

[0037] 3. Operating table; 301. First guide rail; 302. Second guide rail; 303. Slide table; 304. Mounting base; 305. Outer gear ring; 306. Shaft bracket; 307. Second gear; 308. Spline shaft; 309. Electric push rod;

[0038] 4. Positioning hole; 401. Positioning pin; 402. First spring;

[0039] 5. First round box; 501. First spline cylinder; 502. First magnet; 503. Second spline cylinder; 504. First spline rod; 505. Second spring; 506. Second spline rod;

[0040] 6. Third spline cylinder; 601. Third spline rod; 602. Second round box; 603. Fourth spline cylinder; 604. Second magnet; 605. Fifth spline cylinder; 606. Fourth spline rod; 607. Third spring;

[0041] 7. Magnetic separation plate; 701. Fourth spring;

[0042] 8. Magnetic coupling Detailed implementation mode

[0043] 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 the embodiments.

[0044] Embodiment: This embodiment provides a test device for a coaxial reducer of a new energy vehicle. Refer to Figure 1 - Figure 10 , specifically, it includes an outer frame 1. A first turntable 101 and a second turntable 102 are respectively arranged on the left and right sides of the outer frame 1. A plurality of circumferentially distributed installation bins 103 are installed between the first turntable 101 and the second turntable 102. A first rotating shaft 104 corresponding to each of the plurality of installation bins 103 rotates in the second turntable 102, and the first rotating shaft 104 extends into the corresponding installation bin 103. A first gear 105 is fixed on the first rotating shaft 104. A toothed ring 106 is sleeved outside the numerous first gears 105, and the toothed ring 106 meshes with the first gear 105. A servo motor 107 is installed on the outer frame 1. A second rotating shaft 108 corresponding to each of the plurality of installation bins 103 rotates in the first turntable 101, and the second rotating shaft 108 extends into the corresponding installation bin 103. A test sensor 109 corresponding to the plurality of second rotating shafts 108 is fixed in the first turntable 101. A plurality of coaxial reducers to be tested are installed in the plurality of installation bins 103. The input shaft of the coaxial reducer is connected to the first rotating shaft 104, and the output shaft of the coaxial reducer is connected to the second rotating shaft 108.

[0045] When the device is in use, the staff can use the device to test multiple coaxial reducers of the same type of new energy vehicle under different working conditions. Through the method of comparison and verification, accurate testing of the coaxial reducer can be achieved. For example, in the working condition test of the coaxial reducer under different lubrication conditions, during the test process, multiple identical coaxial reducers are sequentially installed in multiple installation bins 103, and the input shaft of the coaxial reducer is connected to the first rotating shaft 104, and the output shaft of the coaxial reducer is connected to the second rotating shaft 108. The lubricating oil quantity in each coaxial reducer is accurately controlled and is different from each other. Then, the servo motor 107 is powered on and started. After the servo motor 107 is started, it drives the gear ring 106 to rotate. By means of the meshing of the gear ring 106 and multiple first gears 105, it drives many first rotating shafts 104 to rotate synchronously. During the rotation of the first rotating shaft 104, the rotational power is transmitted to the input shaft of the coaxial reducer, and then after the conversion of the coaxial reducer, it is output from the output shaft of the coaxial reducer, driving the second rotating shaft 108 to rotate. The test sensor 109 connected to the second rotating shaft 108 can detect the rotation of the second rotating shaft 108. The test sensor 109 can be set as a rotational speed sensor, a torque sensor, etc. according to actual usage requirements. By recording and comparing the data measured by many test sensors 109, the control test of the coaxial reducer under different working conditions can be efficiently achieved.

[0046] During the test process, by providing multiple installation bins 103 for installing the coaxial reducer, the device can test multiple coaxial reducers simultaneously, which can not only effectively improve the efficiency of testing the coaxial reducer of new energy vehicles, but also facilitate the control test. And by means of the meshing of the gear ring 106 and many first gears 105, the power accessed by many coaxial reducers comes from the same servo motor 107, which can not only effectively reduce the usage amount of the servo motor 107, reduce the test cost, but also effectively ensure the stability and consistency of the power source during the test of multiple coaxial reducers, which is beneficial to ensuring the accuracy during the simultaneous test of multiple coaxial reducers.

[0047] In the specific implementation process, such as Figure 7 and Figure 10As shown, the first turntable 101 and the second turntable 102 are coaxially arranged and rotatably connected to the outer frame 1. The first turntable 101 and the second turntable 102 are fixedly connected to each other. A rotating cylinder 2 is movably sleeved outside the first rotating shaft 104, and the rotating cylinder 2 is fixedly connected to the corresponding installation bin 103. The installation bin 103 is rotatably connected to the first turntable 101 and the second turntable 102 through the rotating cylinder 2. Positioning holes 4 corresponding to the plurality of installation bins 103 are formed in the second turntable 102. A positioning pin 401 corresponding to the positioning holes 4 is slidably inserted into the outer frame 1, and a first spring 402 for elastically supporting the positioning pin 401 is movably sleeved on the positioning pin 401. When the device is in use, since the mutually connected first turntable 101 and the second turntable 102 are rotatably installed in the outer frame 1, the positions of the numerous installation bins 103 arranged around in the first turntable 101 and the second turntable 102 can be adjusted by rotating the first turntable 101 and the second turntable 102. Through rotation, the numerous installation bins 103 can be adjusted to the front position one by one, facilitating the staff to install a plurality of coaxial speed reducers in the numerous installation bins 103 one by one.

[0048] Before controlling the rotation and adjustment of the first turntable 101 and the second turntable 102, the staff needs to pull out the positioning pin 401 outward. By overcoming the elastic support of the first spring 402, the end of the positioning pin 401 is withdrawn from the positioning hole 4, releasing the locking of the rotation of the first turntable 101 and the second turntable 102. When the rotation and adjustment of the first turntable 101 and the second turntable 102 are in place, the staff releases the pulling of the positioning pin 401. Under the elastic reset support of the first spring 402, the end of the positioning pin 401 can be reinserted into the positioning hole 4, re-locking the rotation of the first turntable 101 and the second turntable 102. The operation is convenient and can effectively ensure the stability of the device during the coaxial speed reducer test.

[0049] In the specific implementation process, such as Figure 3 、 Figure 7 and Figure 10As shown in the figure, a first sprocket 201 is fixed on each rotating cylinder 2, and a fixed shaft 202 rotatably installed at the axial center position inside the second turntable 102 is fixed on the outer frame 1. A second sprocket 203 corresponding to each of the multiple first sprockets 201 is fixed on the fixed shaft 202. A chain 204 is sleeved between the second sprocket 203 and the corresponding first sprocket 201 for transmission. During the use of the device, when rotating and adjusting the first turntable 101 and the second turntable 102, since the installation bin 103 is rotationally connected to the first turntable 101 and the second turntable 102 through the rotating cylinder 2, and the rotating cylinder 2 is in transmission connection with the fixed shaft 202 through the engagement of the teeth of the first sprocket 201, the second sprocket 203, and the chain 204. Since the fixed shaft 202 remains in a constant state, during the rotation of the first turntable 101 and the second turntable 102, with the engagement of the teeth between the first sprocket 201, the second sprocket 203, and the chain 204, the rotating cylinder 2 will be driven to rotate in the opposite direction by the same angle, so that the installation bin 103 fixedly connected to the rotating cylinder 2 always maintains a stable vertical state, and many installation bins 103 will not tilt due to the rotation of the first turntable 101 and the second turntable 102, which is beneficial to ensuring the stability of the coaxial reducer installed in the installation bin 103 by the staff.

[0050] In the specific implementation process, such as Figure 1 、 Figure 4 and Figure 6 - Figure 10 As shown in the figure, an operating platform 3 is fixed on the outer frame 1 at the middle position in the front of the first turntable 101 and the second turntable 102. An installation seat 304 is placed in each installation bin 103. The coaxial reducer is fixed in the installation seat 304. A first connector is installed at the right end of the installation bin 103 and the installation seat 304, and a second connector is installed at the left end of the installation bin 103 and the installation seat 304. A first guide rail 301 arranged longitudinally is fixed on the top of the operating platform 3. A second guide rail 302 arranged longitudinally is fixed in the installation bin 103, and the second guide rail 302 is arranged corresponding to the first guide rail 301. A sliding table 303 slides on the second guide rail 302, and the installation seat 304 is fixed on the sliding table 303.

[0051] When the device is in use, during the installation of the coaxial reducer, the staff rotate to adjust each installation bin 103 to the front position one by one. In this state, the bottom of the installation bin 103 is exactly aligned with the rear of the top of the operation table 3, and the second guide rail 302 is exactly aligned with the first guide rail 301. At this time, the staff release the connection between the mounting seat 304 and the inside of the installation bin 103. By sliding the sliding table 303 on the first guide rail 301 and the second guide rail 302, the mounting seat 304 can be slid from the inside of the installation bin 103 to the operation table 3. Then the staff firmly install the coaxial reducer to be tested on the mounting seat 304, connect the input shaft of the coaxial reducer to the first connector, and connect the output shaft of the coaxial reducer to the second reducer. Then the staff push the mounting seat 304 backward, driving the sliding table 303 to slide along the first guide rail 301 and the second guide rail 302, so that the mounting seat 304 re-enters the installation bin 103, and re-lock the mounting seat 304 and the installation bin 103, then the coaxial reducer to be tested can be installed in the installation bin 103 conveniently and efficiently. Similarly, after the test is completed, when disassembling the coaxial reducer, the mounting seat 304 can also be slid to the operation table 3 for disassembly operation. Through the movement of the mounting seat 304, the disassembly and assembly operations of the coaxial reducer can be realized outside the installation bin 103, which can effectively improve the operation convenience of the device during actual use and is beneficial to improving the efficiency in the test process of the coaxial reducer of new energy vehicles.

[0052] In the specific implementation process, as Figure 2 、 Figure 6 and Figure 10 shown, an outer gear ring 305 is fixedly arranged around the outside of the second turntable 102, and the outer dimension of the outer gear ring 305 is adapted to the outer dimension of the gear ring 106. A shaft frame 306 slides inside the outer frame 1, and a second gear 307 meshing with the outside of the gear ring 106 rotates inside the shaft frame 306. A spline shaft 308 is slidably inserted into the second gear 307, and the spline shaft 308 is connected to the drive shaft of the servo motor 107. An electric push rod 309 parallel to the spline shaft 308 is fixed on the outer frame 1, and the telescopic end of the electric push rod 309 is fixed to the shaft frame 306. A magnetic coupling 8 is connected between the drive shaft of the servo motor 107 and the spline shaft 308. When the device is in use, the staff can not only use the servo motor 107 to provide rotational power for many coaxial reducers, but also provide power for the rotational adjustment of the first turntable 101 and the second turntable 102 during the disassembly and assembly of the coaxial reducer. The staff only need to switch the meshing state of the second gear 307 with the gear ring 106 and the outer gear ring 305 to achieve flexible control of the drive.

[0053] The second gear 307 is slidably sleeved outside the spline shaft 308. The outer dimension of the spline shaft 308 is adapted to the inner dimension of the second gear 307. During the sliding process of the second gear 307 along the spline shaft 308, it will not affect the rotation of the spline shaft 308 driving the second gear 307. During the disassembly and assembly process, when using the servo motor 107 to drive the first turntable 101 and the second turntable 102 to rotate, the electric push rod 309 is powered on and started. Its telescopic end pushes the shaft frame 306 to drive the second gear 307 to move leftward, so that the second gear 307 meshes with the external gear ring 305. At this time, the servo motor 107 is powered on and started, driving the spline shaft 308 to rotate, and then driving the second gear 307 to rotate. By means of the meshing of the second gear 307 and the external gear ring 305, the second turntable 102 is driven to rotate, realizing the drive during the rotation adjustment of the first turntable 101 and the second turntable 102 during the disassembly and assembly of the coaxial reducer. When using the servo motor 107 to provide rotational power for the coaxial reducer, the staff controls the telescopic end of the electric push rod 309 to move back to its original position, pulling the shaft frame 306 to drive the second gear 307 to move rightward, so that the second gear 307 meshes with the gear ring 106 again. By means of the meshing of the second gear 307 and the gear ring 106, as well as the meshing of the gear ring 106 and many first gears 105, rotational power is provided for many first rotating shafts 104, and thus rotational power is provided during the test of the coaxial reducer. The above structural settings enable the device to only use a single servo motor 107 for power drive, which can effectively reduce the usage amount of the servo motor 107. It can not only improve the operation convenience, but also effectively reduce the manufacturing cost of the device and the energy consumption during test use, realizing green and energy-saving test operations.

[0054] During the test process, the left and right parts of the magnetic coupling 8 are respectively connected to the spline shaft 308 and the drive shaft of the servo motor 107. The left and right parts of the magnetic coupling 8 are magnetically connected and rotate synchronously. When the torque borne by the magnetic coupling 8 is too large, the left and right parts of the magnetic coupling 8 will rotate relatively. By connecting the magnetic coupling 8 between the spline shaft 308 and the drive shaft of the servo motor 107, if there is an obstruction in the internal transmission of the coaxial reducer, resulting in the rotation of the spline shaft 308 being stuck, at this time, the magnetic coupling 8 can interrupt the rotational drive of the servo motor 107 to many coaxial reducers, avoiding the servo motor 107 from being stuck and burned out, realizing the protection of the servo motor 107, which is beneficial to ensuring the safety of the device during test use.

[0055] In the specific implementation process, such as Figure 5 、 Figure 7 and Figure 9 - Figure 10As shown in the figure, the first connector includes a first circular box 5 fixedly connected to the first rotating shaft 104. A first spline cylinder 501 is fixed to the left side of the first circular box 5. A first magnet 502 is fixed at the axial center position inside the first circular box 5. A second spline cylinder 503 rotates on the right side of the mounting seat 304. A first spline rod 504 adapted to the first spline cylinder 501 is fixed to the right end of the second spline cylinder 503. A second spring 505 for elastically supporting the second spline cylinder 503 is movably sleeved on the outer side of the second spline cylinder 503. A second spline rod 506 is slidably inserted into the left end of the second spline cylinder 503. The second connector includes a third spline cylinder 6 rotatably mounted on the left side of the mounting seat 304. A third spline rod 601 is slidably inserted into the right end of the third spline cylinder 6. A second circular box 602 is fixed to the left end of the third spline cylinder 6. A fourth spline cylinder 603 is fixed to the left side of the second circular box 602. A second magnet 604 is fixed at the axial center position inside the second circular box 602. A fifth spline cylinder 605 is fixed to the right end of the second rotating shaft 108. A fourth spline rod 606 is slidably inserted into the right end of the fifth spline cylinder 605. A third spring 607 fixedly connected to the fourth spline rod 606 is fixed inside the fifth spline cylinder 605. A magnetic isolation mechanism is installed in both the first circular box 5 and the second circular box 602. The magnetic isolation mechanism includes magnetic isolation plates 7 symmetrically and slidably mounted inside the first circular box 5 or the second circular box 602, and a fourth spring 701 for elastically supporting the magnetic isolation plates 7. The symmetrically arranged magnetic isolation plates 7 are elastically supported by the fourth spring 701, approach and close to each other, and shield the first magnet 502 or the second magnet 604.

[0056] During the use of the device, the staff firmly installs the coaxial reducer to be tested on the mounting seat 304, firmly sleeved the second spline rod 506 on the input shaft of the coaxial reducer, and firmly sleeved the third spline rod 601 on the output shaft of the coaxial reducer. When the coaxial reducer is not being tested, with the elastic support of the second spring 505, the second spline cylinder 503 has a tendency to move to the left, driving the first spline rod 504 to retract into the right end wall of the mounting seat 304. With the elastic connection of the third spring 607, the fourth spline rod 606 retracts into the fifth spline cylinder 605. This makes the distance between the left and right sides of the mounting seat 304 the same as the distance between the first spline cylinder 501 and the fifth spline cylinder 605. The first spline rod 504 and the fourth spline rod 606 are made of magnetic conductive materials. When not being tested, the first magnet 502 and the second magnet 604 are respectively shielded by the magnetic shielding plates 7 provided correspondingly in the first round box 5 and the second round box 602. In this state, the first magnet 502 cannot magnetically attract the first spline rod 504 through the magnetic shielding plate 7, and the second magnet 604 cannot magnetically attract the fourth spline rod 606 through the magnetic shielding plate 7. This makes the first spline rod 504 not inserted into the first spline cylinder 501, and the fourth spline rod 606 not inserted into the fourth spline cylinder 603. Both the first connector and the second connector are in an interrupted state. With the cooperation of the first connector and the second connector, the mounting seat 304 can be smoothly moved into the installation bin 103 and can also be smoothly taken out from the mounting seat 304, which is beneficial to ensuring the smoothness of installing the coaxial reducer in the installation bin 103 through the movement of the mounting seat 304.

[0057] The outer dimension of the first spline rod 504 is adapted to the inner dimension of the first spline cylinder 501, the outer dimension of the second spline rod 506 is adapted to the inner dimension of the second spline cylinder 503, the outer dimension of the third spline rod 601 is adapted to the inner dimension of the third spline cylinder 6, and the inner dimensions of the fourth spline cylinder 603 and the fifth spline cylinder 605 are adapted to the outer dimension of the fourth spline rod 606. The relative sliding of the second spline rod 506 and the second spline cylinder 503 will not affect the synchronous rotation of the second spline rod 506 and the second spline cylinder 503, and the relative sliding of the third spline rod 601 and the third spline cylinder 6 will not affect the synchronous rotation of the third spline rod 601 and the third spline cylinder 6.

[0058] During the test, the first rotating shaft 104 rotates at high speed due to the drive of the servo motor 107. During the rotation of the first rotating shaft 104, the first round box 5 is driven to rotate at high speed. The swing generated by the rotation of the first round box 5 makes the two symmetrically arranged magnetic isolation plates 7 in the first round box 5 overcome the elastic support of their respective fourth springs 701 and move outward. The two magnetic isolation plates 7 move away from each other, and the shielding of the first magnet 502 is released. At this time, the first magnet 502 magnetically attracts the first spline rod 504, pulls the first spline rod 504 to the right, drives the right end of the first spline rod 504 to be inserted into the first spline cylinder 501, and performs transmission connection. The rotational power on the first rotating shaft 104 is transmitted to the second spline cylinder 503, and then transmitted to the input shaft of the coaxial reducer through the second spline rod 506. After conversion by the coaxial speed controller, the output shaft of the coaxial speed controller is transmitted to the third spline rod 601, and the third spline rod 601 drives the third spline cylinder 6 to rotate, and then drives the second round box 602 to rotate. The swing generated by the rotation of the second round box 602 makes the two symmetrically arranged magnetic isolation plates 7 in the second round box 602 overcome the elastic support of their respective fourth springs 701 and move outward. The two magnetic isolation plates 7 move away from each other, and the shielding of the second magnet 604 is released. At this time, the second magnet 604 magnetically attracts the fourth spline rod 606, pulls the fourth spline rod 606 to the right, drives the right end of the fourth spline rod 606 to be inserted into the fourth spline cylinder 603, and transmits the rotational power to the second rotating shaft 108 through the fifth spline cylinder 605, and then detects it through the test sensor 109.

[0059] When the driving shaft of the servo motor 107 stops rotating, the rotation of the first round box 5 and the second round box 602 stops, and under the elastic reset of the fourth spring 701, the magnetic isolation plate 7 moves and resets due to the rotation and swing, so that the magnetic isolation plate 7 shields the first magnet 502 and the second magnet 604 in the first round box 5 and the second round box 602 again. After losing the magnetic attraction, with the help of the elastic reset of the second spring 505 and the third spring 607, the first spline rod 504 is retracted into the right side of the mounting seat 304, and the fourth spline rod 606 is retracted into the fifth spline cylinder 605. At this time, the first connector and the second connector are disconnected again, and the mounting seat 304 can be smoothly removed, which effectively ensures the stability of the device for convenient disassembly and assembly of the coaxial reducer.

[0060] Specifically, the working principle and operation method of the present invention are as follows:

[0061] The staff can install multiple coaxial speed reducers in the mounting seats 304 within multiple mounting bins 103 respectively. Through the meshing of the second gear 307 and the gear ring 106, and the meshing of the gear ring 106 with multiple first gears 105, the first rotating shaft 104 is driven to rotate. Then, the rotational power is transmitted to the input shaft of the coaxial speed reducer by means of the first transmission, converted and then exported through the output shaft. Then, it is transmitted to the second rotating shaft 108 by means of the second transmission and detected by the test sensor 109. Multiple coaxial speed reducers are simultaneously driven by a unified servo motor 107. By setting different working conditions of the coaxial speed reducer, the performance of the coaxial speed reducer under different working environments can be tested. When disassembling and assembling the coaxial speed reducer, the second turntable 102 can be rotated by the servo motor 107 to align multiple mounting bins 103 one by one to the top of the operating table 3. With the docking of the first guide rail 301 and the second guide rail 302, and the sliding of the sliding table 303, the mounting seat 304 is removed from the mounting bin 103, and the disassembly and assembly operations of the coaxial speed reducer are realized on the operating table 3 outside the mounting bin 103, effectively improving the efficiency of disassembly, replacement of multiple coaxial speed reducers during the test process.

[0062] The above is only a preferred specific embodiment of the present invention, 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 of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A new energy vehicle coaxial reducer testing device, comprising an outer frame (1), characterized in that: A first rotating disk (101) and a second rotating disk (102) are respectively arranged on the left and right sides of the outer frame (1); a plurality of mounting bins (103) are arranged between the first rotating disk (101) and the second rotating disk (102) and are arranged in a surrounding manner; a first rotating shaft (104) corresponding to the plurality of mounting bins (103) rotates in the second rotating disk (102), and the first rotating shaft (104) extends into the corresponding mounting bin (103); a first gear (105) is fixed on the first rotating shaft (104); a gear ring (106) is commonly sleeved on the outer sides of the plurality of first gears (105); and the gear ring (106) and the first gear (105) are connected to each other. 105) are engaged, a servo motor (107) is installed on the outer frame (1), a second rotating shaft (108) corresponding to a plurality of mounting bins (103) is rotated in the first rotating disk (101), and the second rotating shaft (108) extends into the corresponding mounting bin (103), a test sensor (109) correspondingly connected to the plurality of second rotating shafts (108) is fixed in the first rotating disk (101), a plurality of coaxial reducers to be tested are installed in the plurality of mounting bins (103), the input shaft of the coaxial reducer is connected to the first rotating shaft (104), and the output shaft of the coaxial reducer is connected to the second rotating shaft (108).

2. A new energy vehicle coaxial reducer testing device according to claim 1, characterized in that: The first rotating disk (101) and the second rotating disk (102) are coaxially arranged and rotatably connected to the outer frame (1); the first rotating disk (101) and the second rotating disk (102) are fixedly connected; a rotating drum (2) is provided on the outer movable sleeve of the first rotating shaft (104); the rotating drum (2) is fixedly connected to the corresponding installation bin (103); and the installation bin (103) is rotatably connected to the first rotating disk (101) and the second rotating disk (102) via the rotating drum (2).

3. A new energy vehicle coaxial reducer testing device according to claim 2, characterized in that: A first sprocket (201) is fixed on each rotating drum (2), a fixed shaft (202) rotatably mounted at an inner axis position of the second rotating disk (102) is fixed on the outer frame (1), and second sprockets (203) corresponding to the plurality of first sprockets (201) are fixed on the fixed shaft (202), and a chain (204) is transmission-sleeved between the second sprockets (203) and the corresponding first sprockets (201).

4. A new energy vehicle coaxial reducer testing device according to claim 2, characterized in that: An operating table (3) is fixed on the outer frame (1) and is located in the middle of the front of the first turntable (101) and the second turntable (102); a mounting seat (304) is placed in each mounting chamber (103); the coaxial reducer is fixed in the mounting seat (304); a first connector is installed at the right end of the mounting chamber (103) and the mounting seat (304); and a second connector is installed at the left end of the mounting chamber (103) and the mounting seat (304).

5. A new energy vehicle coaxial reducer testing device according to claim 4, characterized in that: A first guide rail (301) arranged longitudinally is fixed on the top of the operating table (3), a second guide rail (302) arranged longitudinally is fixed in the installation chamber (103), and the second guide rail (302) is arranged corresponding to the first guide rail (301), a slide table (303) slides on the second guide rail (302), and the installation seat (304) is fixed on the slide table (303).

6. A new energy vehicle coaxial reducer testing device according to claim 2, characterized in that: An outer ring gear (305) is fixedly arranged around the outer side of the second rotating disk (102), and the outer size of the outer ring gear (305) matches the outer size of the ring gear (106); an axle frame (306) is slidably arranged inside the outer frame (1), and a second gear (307) meshing with the outer side of the ring gear (106) rotates inside the axle frame (306); a spline shaft (308) is slidably inserted inside the second gear (307), and the spline shaft (308) is connected to the driving shaft of the servo motor (107); an electric push rod (309) is fixedly arranged parallel to the spline shaft (308) on the outer frame (1), and the telescopic end of the electric push rod (309) is fixed to the axle frame (306).

7. A new energy vehicle coaxial reducer testing device according to claim 2, characterized in that: The second rotating disk (102) is provided with positioning holes (4) corresponding to the plurality of installation compartments (103) one by one, the outer frame (1) is slidably plugged with positioning pins (401) corresponding to the positioning holes (4), and the positioning pins (401) are movably sleeved with first springs (402) for elastically supporting them.

8. A new energy vehicle coaxial reducer testing device according to claim 4, characterized in that: The first connector comprises a first round box (5) fixedly connected to the first rotating shaft (104), and a first spline cylinder (501) is fixed on the left side of the first round box (5), a first magnet (502) is fixed at the inner axis position of the first round box (5), a second spline cylinder (503) is rotatably arranged on the right side of the mounting seat (304), and a first spline rod (504) adapted to the first spline cylinder (501) is fixed at the right end of the second spline cylinder (503), a second spring (505) for elastically supporting the second spline cylinder (503) is provided on the outer movable sleeve of the second spline cylinder (503), and a second spline rod (506) is slidably inserted at the left end of the second spline cylinder (503), and the second connector comprises a rotating shaft (104). A third spline cylinder (6) is movably mounted on the left side of the mounting seat (304), and a third spline rod (601) is slidably inserted into the right end of the third spline cylinder (6), a second round box (602) is fixed to the left end of the third spline cylinder (6), and a fourth spline cylinder (603) is fixed to the left side of the second round box (602), a second magnet (604) is fixed at the axial position inside the second round box (602), a fifth spline cylinder (605) is fixed to the right end of the second rotating shaft (108), and a fourth spline rod (606) is slidably inserted into the right end of the fifth spline cylinder (605), and a third spring (607) fixedly connected to the fourth spline rod (606) is fixed inside the fifth spline cylinder (605).

9. A new energy vehicle coaxial reducer testing device according to claim 8, characterized in that: A magnetic isolation mechanism is installed in both the first round box (5) and the second round box (602), and the magnetic isolation mechanism comprises a magnetic isolation plate (7) symmetrically slidably installed in the first round box (5) or the second round box (602), and a fourth spring (701) for elastically supporting the magnetic isolation plate (7). The symmetrically arranged magnetic isolation plates (7) are elastically supported by the fourth spring (701) to be close to each other and shield the first magnet (502) or the second magnet (604).

10. A new energy vehicle coaxial reducer testing device according to claim 6, characterized in that: A magnetic coupler (8) is connected between the drive shaft of the servo motor (107) and the spline shaft (308).

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