Motor performance test equipment

Abstract

The utility model discloses motor performance testing equipment, which comprises a machine table, a load testing device and a no-load testing device. The load testing device is arranged on the machine table and used for testing performance parameters of the to-be-tested motor in a load state, and in the load testing state, the to-be-tested motor is suitable for being installed on the load testing device; the no-load testing device is arranged on the machine table and used for testing performance parameters of the to-be-tested motor in the no-load state, and the to-be-tested motor is suitable for being installed on the no-load testing device in the no-load testing state. According to the motor performance test equipment provided by the embodiment of the utility model, the load test device and the no-load test device are integrated on the same machine table, so that the motor to be tested can be conveniently subjected to load test and no-load test on the same test equipment, and the test efficiency of the motor to be tested in various test states can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment detection, in particular to a motor performance testing device. Background Art

[0002] The stability of the Electric Power Steering (EPS) system is related to driving safety and vehicle performance. Therefore, it is necessary to effectively test the performance and parameters of the EPS motor under different test conditions. The existing testing equipment can only meet the performance and parameter testing of EPS under a single test state. If multiple test states are required, multiple testing equipment must be used, resulting in low testing efficiency of the EPS motor, which needs to be improved. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a motor performance test device, which can facilitate the motor to be tested to complete load testing and no-load testing on the same test device, thereby improving the test efficiency of the motor to be tested under various test conditions.

[0004] The motor performance testing equipment according to the embodiment of the utility model includes: a machine platform; a load testing device, which is arranged on the machine platform and is used to test the performance parameters of the motor to be tested under a load state, and in the load testing state, the motor to be tested is suitable for being installed on the load testing device; a no-load testing device, which is arranged on the machine platform and is used to test the performance parameters of the motor to be tested under a no-load state, and in the no-load testing state, the motor to be tested is suitable for being installed on the no-load testing device; an incubator, the temperature in the incubator is adjustable, a test port is formed on the incubator, and the load testing device can be moved along the machine platform so that the motor to be tested can be moved into or out of the incubator through the test port.

[0005] According to the motor performance testing equipment of the embodiment of the utility model, by arranging the load testing device and the no-load testing device on the same machine, it is convenient to complete the load test and the no-load test of the motor to be tested on the same testing equipment, thereby improving the testing efficiency of the motor to be tested under various test conditions.

[0006] According to some embodiments of the utility model, a slide rail extending along a first direction is provided on the machine platform, the load testing device is supported on the slide rail and can slide along the extension direction of the slide rail, and when the load testing device moves to a set position, the load testing device is fixed to the machine platform by a first locking member.

[0007] According to some embodiments of the utility model, the load testing device includes a first servo motor, a first transmission shaft, a first torque sensor and a first encoder, the first torque sensor and the first encoder are both connected to the first transmission shaft, one end of the first transmission shaft is connected to the output shaft of the first servo motor, and the other end of the first transmission shaft is suitable for being connected to the output shaft of the motor to be tested; the no-load testing device includes a second servo motor, a second transmission shaft, a second torque sensor and a second encoder, the second torque sensor and the second encoder are both connected to the second transmission shaft, one end of the second transmission shaft is connected to the output shaft of the second servo motor, and the other end of the second transmission shaft is suitable for being connected to the output shaft of the motor to be tested.

[0008] According to some embodiments of the present invention, the first transmission shaft and the second transmission shaft both extend along a first direction, the load testing device and the no-load testing device are arranged along a second direction, and in the second direction, the no-load testing device and the load testing device are arranged opposite to each other, and the second direction is perpendicular to the first direction.

[0009] According to some embodiments of the utility model, the first transmission shaft and the first torque sensor are arranged along the axial direction of the first transmission shaft, the first torque sensor is connected between one end of the first transmission shaft and the output shaft of the first servo motor, and the first encoder is sleeved on the outer peripheral side of the first transmission shaft; the load testing device also includes a first base plate, a first support seat, a first support frame and a first bearing support, the first support seat, the first support frame and the first bearing support are all arranged on the first base plate and along the axial direction of the first transmission shaft, the first servo motor is installed on the first support seat, the first torque sensor is installed on the first support frame, and the first bearing support is provided with one or more first bearings arranged along the axial direction of the first transmission shaft, and the first transmission shaft cooperates with the first bearing.

[0010] According to some embodiments of the utility model, the outer wall of the first encoder is connected to the first bearing bracket via a first elastic bracket, and the first elastic bracket can be elastically deformed in the axial direction of the first transmission shaft; the first elastic bracket extends in an "S" shape in the axial direction of the first transmission shaft.

[0011] According to some embodiments of the utility model, the load test includes a conventional test mode and an incubator test mode. In the conventional test mode, the motor to be tested is located outside the incubator, and in the incubator test mode, the motor to be tested is located inside the incubator; the load testing device also includes an extension component, the extension component includes an extension shaft, and the extension shaft is detachably connected to the other end of the first transmission shaft; wherein, in the conventional test mode, the extension shaft is removed from the first transmission shaft, and the output shaft of the motor to be tested is directly connected to the other end of the first transmission shaft; in the incubator test mode, one end of the extension shaft is connected to the other end of the first transmission shaft, and the output shaft of the motor to be tested is directly connected to the other end of the extension shaft.

[0012] According to some embodiments of the utility model, the output shaft of the motor to be tested is formed with a first internal spline, the other end of the first transmission shaft is formed with a first external spline, one end of the extended shaft is formed with a second internal spline, and the other end of the extended shaft is formed with a second external spline; wherein, in the conventional test mode, the first internal spline is connected to the first external spline; in the temperature box test mode, the first internal spline is connected to the second external spline, and the first external spline is connected to the second internal spline.

[0013] According to some embodiments of the utility model, a slide rail extending along a first direction is provided on the machine platform, and a first slide groove cooperating with the slide rail is formed on the bottom surface of the first base plate, so that the load testing device can slide along the extension direction of the slide rail, and the extension component also includes an extension support member, which is suitable for supporting the slide rail and being detachably connected to the first bearing bracket, the extension shaft is passed through the extension support member, and a second slide groove cooperating with the slide rail is formed on the bottom surface of the extension support member, and a second fastening hole is provided on the extension support member. When the load testing device moves to a set position, a second locking member is passed through the second fastening hole and the machine platform to fix the extension support member on the machine platform; wherein, in the conventional test mode, the extension support member is removed from the first bearing bracket; in the temperature box test mode, the extension support member is suitable for being connected to the first bearing bracket and connected between the first bearing bracket and the motor to be tested.

[0014] According to some embodiments of the utility model, the extended support member includes an extended tube, a support flange and an extended tube bracket, the extended tube is detachably connected to the first bearing bracket, the extended shaft is passed through the extended tube, and one or more second bearings are arranged at intervals along the axial direction of the extended shaft are provided in the extended tube, the extended tube is sleeved on the outer periphery of the extended shaft, the extended shaft cooperates with the second bearing to support the extended shaft, a support flange is installed on the outer peripheral side of the extended tube, the support flange is fixed and supported on the extended tube bracket, the extended tube bracket is supported on the slide rail, the bottom surface of the extended tube bracket is formed with the second slide groove, and the extended tube bracket is provided with the second fastening hole.

[0015] According to some embodiments of the utility model, the extension tube and the first bearing bracket are connected and matched via a first stop structure, a mounting plate is provided on the motor to be tested, and the extension tube and the mounting plate are connected and matched via a second stop structure.

[0016] According to some embodiments of the utility model, the extension tube bracket includes a support base, a bracket seat, an adjustment rod and a guide rod, the support base is supported on the slide rail and is formed with the second slide groove and the second fastening hole, the bracket seat is located above the support base, the adjustment rod and the guide rod are both arranged on the bottom surface of the bracket seat and extend in the up and down directions, a guide hole and an adjustment hole are formed on the support base, the adjustment rod is threadedly connected to the adjustment hole, the guide rod is inserted into the guide hole and can move in the up and down directions, and the support flange is fixed and supported on the bracket seat.

[0017] According to some embodiments of the utility model, it also includes a heat insulation seal, which is arranged on the axial side of the support flange away from the first transmission shaft; wherein, in the temperature box test mode, the heat insulation seal abuts against the outer wall surface of the temperature box and surrounds the outer peripheral side of the test port.

[0018] According to some embodiments of the utility model, the second transmission shaft and the second torque sensor are arranged along the axial direction of the second transmission shaft, the second torque sensor is connected between one end of the second transmission shaft and the output shaft of the second servo motor, and the second encoder is sleeved on the outer peripheral side of the second transmission shaft; the no-load test device also includes a second base plate, a second support seat, a second support frame and a second bearing frame, the second support seat, the second support frame and the second bearing frame are all arranged on the second base plate and along the axial direction of the second transmission shaft, the second servo motor is installed on the second support seat to support the second servo motor, the second torque sensor is installed on the second support frame to support the second torque sensor, and one or more third bearings arranged along the axial direction of the second transmission shaft are provided in the second bearing frame, and the second transmission shaft is installed on the third bearing to support the second transmission shaft.

[0019] According to some embodiments of the utility model, the outer wall of the second encoder is connected to the second bearing bracket via a second elastic bracket, and the second elastic bracket can be elastically deformed in the axial direction of the second transmission shaft; the second elastic bracket extends in an "S" shape in the axial direction of the second transmission shaft.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a front view of a motor performance testing device according to some embodiments of the utility model;

[0023] Figure 2 yes Figure 1 The enlarged view of A in FIG.

[0024] Figure 3 yes Figure 1 A side view of the motor performance test equipment in FIG.

[0025] Figure 4 yes Figure 1 A front view of the motor performance test equipment in the temperature chamber test mode;

[0026] Figure 5 yes Figure 4 The enlarged view of point B in the middle;

[0027] Figure 6 yes Figure 1 A top view of the motor performance test equipment in FIG.

[0028] Figure 7 yes Figure 1 The main view of the motor performance test equipment in FIG.

[0029] Figure 8 yes Figure 1 A front view of the assembly of the load test device and the extension assembly;

[0030] Fig. 9 yes Figure 8 Enlarged view of point C in the middle;

[0031] Fig.10 yes Figure 8 Sectional view along line DD;

[0032] Fig.11 yes Fig.10 Enlarged view of point E in the middle;

[0033] Fig.12 yes Fig.10 The enlarged view of F in the middle;

[0034] Fig.13 yes Figure 1 A top view of the load test device and the extension assembly assembled;

[0035] Fig.14 yes Fig.10 A cross-sectional view of a load test device in FIG.

[0036] Fig.15 yes Fig.14 Enlarged view of G in the middle;

[0037] Fig.16 yes Fig.10 A cross-sectional view of the extension assembly in FIG.

[0038] Fig.17 yes Fig.16 The enlarged view of the H in the middle;

[0039] Fig.18 yes Fig.16 The enlarged view of point I in the middle;

[0040] Fig.19 yes Figure 1 A three-dimensional schematic diagram of the extension tube bracket in FIG.

[0041] Fig. 20 yes Figure 1 A front view of the extension tube bracket;

[0042] Fig.21 yes Fig. 20 Sectional view along line JJ;

[0043] Fig. 22 yes Figure 1 A front view of the no-load test device in FIG.

[0044] Fig.23 yes Fig. 22 Enlarged view of K in the middle;

[0045] Fig.24 yes Fig. 22 Sectional view along line LL;

[0046] Fig.25 yes Fig.24 The enlarged view of M in FIG.

[0047] Fig.26 yes Figure 1 A top view of the no-load test device in FIG.

[0048] Fig. 27 yes Figure 1 A front view of the current connection terminal block and the connection terminal assembly;

[0049] Fig.28 yes Figure 1 A top view of the current connection terminal board and the connection terminal assembly;

[0050] Fig.29 yes Fig. 27 A top view of the current connection terminal block in FIG.

[0051] Fig.30 yes Figure 1 A three-dimensional schematic diagram of the connection terminals in FIG.

[0052] Fig.31 yes Figure 1 A front view of the connection terminal in FIG.

[0053] Fig.32 yes Figure 1 A top view of the connecting terminal in FIG.

[0054] Fig.33 yes Figure 1 A three-dimensional schematic diagram of the assembly of the connecting terminal and the insulating cap;

[0055] Fig.34 yes Figure 1 A front view of the assembly of the connection terminal and the insulating cap;

[0056] Fig.35 yes Figure 1 Top view of the connection terminal and insulation cap assembly.

[0057] Reference numerals:

[0058] 100. Motor performance testing equipment;

[0059] 1. Machine; 11. Slide rail;

[0060] 2. Load testing device; 21. First servo motor; 22. First transmission shaft; 22a. First external spline; 23. First torque sensor; 24. First encoder; 25. First base plate; 252. First fastening hole; 26. First support seat; 27. First support frame; 28. First bearing bracket; 281. First bearing; 29. ​​First elastic bracket;

[0061] 2a, extension assembly; 211, extension shaft; 212, second internal spline; 213, second external spline; 214, extension support; 215, second slide groove; 216, second fastening hole; 218, extension tube; 219, support flange; 220, extension tube bracket; 221, second bearing; 222, support base; 223, bracket seat; 224, adjustment rod; 225, guide rod; 226, guide hole; 227, adjustment hole;

[0062] 3. No-load test device; 31. Second servo motor; 32. Second transmission shaft; 33. Second torque sensor; 34. Second encoder; 35. Second base plate; 36. Second support seat; 37. Second support frame; 38. Second bearing bracket; 381. Third bearing; 39. Second elastic bracket;

[0063] 4. Temperature box; 41. Test port;

[0064] 5. Motor to be tested; 51. First internal spline; 52. Mounting plate; 53. Heat-insulating seal;

[0065] 61. First stop structure; 62. Second stop structure; 63. First coupling; 64. Second coupling; 65. Third coupling; 66. Fourth coupling;

[0066] 7. Current connection terminal board; 71. Insulation cap; 72. Connection terminal. DETAILED DESCRIPTION

[0067] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0068] Reference below Figure 1-Figure 35 A motor performance testing device 100 according to an embodiment of the present invention is described.

[0069] Reference Figure 1 and Figure 6 According to the motor performance test device 100 of the embodiment of the utility model, it includes a machine 1, a load test device 2 and a no-load test device 3. The machine 1 can provide installation support for the load test device 2 and the no-load test device 3. The load test device 2 is arranged on the machine 1, and the load test device 2 is used to test the performance parameters of the motor 5 to be tested under the load state. Under the load test state, the motor 5 to be tested is suitable for being installed on the load test device 2; the no-load test device 3 is arranged on the machine 1, and the no-load test device 3 is used to test the performance parameters of the motor 5 to be tested under the no-load state. Under the no-load test state, the motor 5 to be tested is suitable for being installed on the no-load test device 3. The load test device 2 and the no-load test device 3 are arranged on the same machine 1, which can facilitate the motor 5 to be tested to complete the load test and the no-load test on the same machine 1, and realize the switching of different test states of the motor 5 to be tested, so that the performance parameters of the motor 5 to be tested under the load state and the performance parameters under the no-load state can be measured on the same machine 1.

[0070] According to the motor performance testing equipment 100 of the embodiment of the utility model, by arranging the load testing device 2 and the no-load testing device 3 on the same machine 1, it is convenient for the motor 5 to be tested to complete the load test and the no-load test on the same testing equipment, thereby improving the testing efficiency of the motor 5 to be tested under various testing conditions.

[0071] Reference Figure 1 , Figure 3 and Figure 4 According to some embodiments of the utility model, the temperature in the incubator 4 is adjustable, a test port 41 is formed on the incubator 4, and the load test device 2 can move along the machine 1 so that the motor 5 to be tested can be moved into or out of the incubator 4 through the test port 41. The temperature in the incubator 4 is adjustable, which can be used to test the performance parameters of the motor 5 to be tested at different temperatures; the test port 41 can play the role of installation avoidance for the motor 5 to be tested, so that the motor 5 to be tested can be moved into or out of the incubator 4 through the test port 41.

[0072] Optionally, according to one embodiment of the utility model, the motor performance testing equipment 100 includes an incubator 4, the temperature inside the incubator 4 is adjustable, and a test port 41 is formed on the incubator 4. When the motor 5 to be tested is installed on the load testing device 2, the load testing device 2 is moved along the machine 1, so that the motor 5 to be tested can be moved into or out of the incubator 4 through the test port 41.

[0073] The load test includes a conventional test mode and a temperature box test mode. In the conventional test mode, the motor 5 to be tested is located outside the temperature box 4, and in the temperature box test mode, the motor 5 to be tested is located inside the temperature box 4. For example, when the motor 5 to be tested needs to be tested in the temperature box test mode, the load test device 2 is moved along the machine 1 and toward the temperature box 4, so that the motor 5 to be tested is moved into the temperature box 4 through the test port 41, and the performance parameters of the motor 5 to be tested in the temperature box test mode are tested by adjusting the temperature in the temperature box 4.

[0074] When the motor 5 to be tested needs to be tested in the conventional test mode, the load test device 2 can be moved along the machine platform 1 and in a direction away from the incubator 4, so that the motor 5 to be tested is moved out of the incubator 4 through the test port 41 to test the performance parameters of the motor 5 to be tested in the conventional test mode.

[0075] Reference Figure 1 and Figure 6 According to some embodiments of the present invention, the machine 1 is provided with a first direction (for example, referring to Figure 1 The slide rail 11 extends in the direction of e1 in the figure, and the load test device 2 is supported by the slide rail 11 and can slide along the extension direction of the slide rail 11. When the load test device 2 moves to the set position, the load test device 2 is fixed to the machine platform 1 through the first locking member. The slide rail 11 can facilitate the movement of the load test device 2 and ensure that the load test device 2 slides along a predetermined track, thereby preventing the load test device 2 from interfering with or colliding with other equipment (such as the unloaded test device 3) during movement.

[0076] When the load test device 2 moves to the set position, the load test device 2 is fixed to the machine platform 1 by the first locking member, so that the fixing method between the load test device 2 and the machine platform 1 is simple and has strong stability. For example, it can be avoided that during the test process, the load test device 2 moves due to the vibration of the motor 5 to be tested, thereby affecting the accuracy of the performance parameter test of the motor 5 to be tested.

[0077] For example, when the load testing device 2 needs to be moved, the first locking member can be removed so that the load testing device 2 can be movable relative to the slide rail 11, and the load testing device 2 slides along the extension direction of the slide rail 11; when the load testing device 2 needs to be fixed, when the load testing device 2 slides to the set position, the load testing device 2 can be fixed to the machine 1 through the first locking member to complete the fixation of the load testing device 2.

[0078] The motor performance test device 100 also includes a temperature box 4, the temperature in the temperature box 4 is adjustable, and a test port 41 is formed on the temperature box 4. When the motor 5 to be tested is installed on the load test device 2, the load test device 2 moves along the slide rail 11, so that the motor 5 to be tested can be moved into the temperature box 4 or out of the temperature box 4 through the test port 41. The temperature in the temperature box 4 is adjustable, which can be used to test the performance parameters of the motor 5 to be tested at different temperatures; the test port 41 can play the role of installation avoidance for the motor 5 to be tested, so that the motor 5 to be tested can be moved into the temperature box 4 or out of the temperature box 4 from the test port 41.

[0079] The load test includes a conventional test mode and a temperature box test mode. In the conventional test mode, the motor 5 to be tested is located outside the temperature box 4, and in the temperature box test mode, the motor 5 to be tested is located inside the temperature box 4. For example, when the motor 5 to be tested needs to be tested in the temperature box test mode, the first locking member can be removed to slide the load test device 2 along the extension direction of the slide rail 11 and toward the temperature box 4, so that the motor 5 to be tested is moved into the temperature box 4 through the test port 41, and the load test device 2 is fixed to the machine 1 by the first locking member, and the performance parameters of the motor 5 to be tested in the temperature box test mode are tested by adjusting the temperature in the temperature box 4.

[0080] When the motor 5 to be tested needs to be tested in the conventional test mode, the first locking piece can be removed to allow the load testing device 2 to slide along the extension direction of the slide rail 11 and in a direction away from the incubator 4, so that the motor 5 to be tested is moved out of the incubator 4 through the test port 41, and the load testing device 2 is fixed to the machine 1 by the first locking piece to test the performance parameters of the motor 5 to be tested in the conventional test mode.

[0081] Reference Figure 6According to some embodiments of the utility model, the load testing device 2 includes a first servo motor 21, a first transmission shaft 22, a first torque sensor 23 and a first encoder 24. The first torque sensor 23 and the first encoder 24 are connected to the first transmission shaft 22. One end of the first transmission shaft 22 is connected to the output shaft of the first servo motor 21, and the other end of the first transmission shaft 22 is suitable for connecting to the output shaft of the motor 5 to be tested. The first torque sensor 23 is used to test the torque of the motor 5 to be tested, and the first encoder 24 is used to test the speed and rotation angle of the motor 5 to be tested. One end of the first transmission shaft 22 is connected to the output shaft of the first servo motor 21, and the other end of the first transmission shaft 22 is suitable for connecting to the output shaft of the motor 5 to be tested, and the first torque sensor 23 and the first encoder 24 are both connected to the first transmission shaft 22, so that the motor 5 to be tested, the first servo motor 21, the first torque sensor 23 and the first encoder 24 can be transmission-connected, so that the rotation of the motor 5 to be tested is transmitted to the first servo motor 21, the first torque sensor 23 and the first encoder 24 via the first transmission shaft 22, so that the torque, speed and rotation angle of the motor 5 to be tested under the load test state can be measured.

[0082] For example, when the motor 5 to be tested is in a load test state, the first servo motor 21 can provide a set load and resistance for the motor 5 to be tested, so that the motor 5 to be tested is powered on and starts to rotate, and the rotation of the motor 5 to be tested can be transmitted to the first transmission shaft 22. The first transmission shaft 22 can transmit the rotation of the motor 5 to be tested to the first servo motor 21, the first torque sensor 23 and the first encoder 24. The first torque sensor 23 can measure the torque of the motor 5 to be tested when the load is set, and the first encoder 24 can measure the speed and rotation angle of the motor 5 to be tested when the load is set.

[0083] Optionally, one end of the first transmission shaft 22 may be directly connected to the output shaft of the first servo motor 21, or one end of the first transmission shaft 22 may be indirectly connected to the output shaft of the first servo motor 21 (for example, a coupling may be provided between the first transmission shaft 22 and the first servo motor 21, one end of the first transmission shaft 22 may be connected to one end of the coupling, and the other end of the coupling may be connected to the output shaft of the first servo motor 21).

[0084] Optionally, the other end of the first transmission shaft 22 may be directly connected to the output shaft of the motor to be tested 5, or the other end of the first transmission shaft 22 may be indirectly connected to the output shaft of the motor to be tested 5 (for example, a coupling may be provided between the first transmission shaft 22 and the motor to be tested 5, the other end of the first transmission shaft 22 may be connected to one end of the coupling, and the other end of the coupling may be connected to the output shaft of the motor to be tested 5).

[0085] The no-load test device 3 includes a second servo motor 31, a second transmission shaft 32, a second torque sensor 33 and a second encoder 34. The second torque sensor 33 and the second encoder 34 are both connected to the second transmission shaft 32. One end of the second transmission shaft 32 is connected to the output shaft of the second servo motor 31, and the other end of the second transmission shaft 32 is suitable for connecting to the output shaft of the motor 5 to be tested. The second torque sensor 33 is used to test the torque of the motor 5 to be tested, and the second encoder 34 is used to test the speed and rotation angle of the motor 5 to be tested. One end of the second transmission shaft 32 is connected to the output shaft of the second servo motor 31, and the other end of the second transmission shaft 32 is suitable for connecting to the output shaft of the motor 5 to be tested, and the second torque sensor 33 and the second encoder 34 are both connected to the second transmission shaft 32, so that the motor 5 to be tested, the second servo motor 31, the second torque sensor 33 and the second encoder 34 can be connected in a transmission manner, so that the rotation of the motor 5 to be tested is transmitted to the second servo motor 31, the second torque sensor 33 and the second encoder 34 via the second transmission shaft 32, so that the torque, speed and rotation angle of the motor 5 to be tested in the no-load test state can be measured.

[0086] For example, when the motor 5 to be tested is in a no-load test state, the second servo motor 31 is powered on and starts to rotate. The rotation of the second servo motor 31 can be transmitted to the second transmission shaft 32. The second transmission shaft 32 can transmit the rotation of the second servo motor 31 to the motor 5 to be tested, the second torque sensor 33 and the second encoder 34. The rotation of the second servo motor 31 can drive the motor 5 to be tested to rotate via the second transmission shaft 32. The second torque sensor 33 can measure the torque of the motor 5 to be tested in the no-load state. The second encoder 34 can measure the speed and rotation angle of the motor 5 to be tested in the no-load state.

[0087] Optionally, one end of the second transmission shaft 32 may be directly connected to the output shaft of the second servo motor 31, or one end of the second transmission shaft 32 may be indirectly connected to the output shaft of the second servo motor 31 (for example, a coupling may be provided between the second transmission shaft 32 and the second servo motor 31, one end of the second transmission shaft 32 may be connected to one end of the coupling, and the other end of the coupling may be connected to the output shaft of the second servo motor 31).

[0088] Optionally, the other end of the second transmission shaft 32 may be directly connected to the output shaft of the motor to be tested 5, or the other end of the second transmission shaft 32 may be indirectly connected to the output shaft of the motor to be tested 5 (for example, a coupling may be provided between the second transmission shaft 32 and the motor to be tested 5, the other end of the second transmission shaft 32 is connected to one end of the coupling, and the other end of the coupling is connected to the output shaft of the motor to be tested 5).

[0089] Reference Figure 6According to some embodiments of the present invention, the first transmission shaft 22 and the second transmission shaft 32 extend along a first direction, and the load test device 2 and the no-load test device 3 extend along a second direction (for example, referring to Figure 6 The no-load test device 3 and the load test device 2 are arranged in the e2 direction, and in the second direction, the no-load test device 3 and the load test device 2 are arranged opposite to each other. The second direction is perpendicular to the first direction and can make full use of the space of the machine 1 in the first direction and the second direction, so that the overall structure of the no-load test device 3 and the load test device 2 is more compact, and the collision or interference between the no-load test device 3 and the load test device 2 can be avoided.

[0090] Reference Figure 8 and Fig.10 According to some embodiments of the present invention, the first transmission shaft 22 and the first torque sensor 23 are arranged along the axial direction of the first transmission shaft 22, the first torque sensor 23 is connected between one end of the first transmission shaft 22 and the output shaft of the first servo motor 21, and the first encoder 24 is sleeved on the outer peripheral side of the first transmission shaft 22. The first torque sensor 23 can measure the torque on the first transmission shaft 22, so as to obtain the torque of the motor 5 to be tested, and the first encoder 24 is sleeved on the outer peripheral side of the first transmission shaft 22, and can directly measure the rotation speed and rotation angle of the first transmission shaft 22, so as to improve the accuracy of the test.

[0091] For example, when the motor 5 to be tested is in a load test state, the first servo motor 21 can provide a set load and resistance for the motor 5 to be tested, so that the motor 5 to be tested is powered on and starts to rotate. The rotation of the motor 5 to be tested can be transmitted to the first transmission shaft 22 and cause the first transmission shaft 22 to rotate. The rotation of the first transmission shaft 22 can transmit the rotation of the motor 5 to be tested to the first servo motor 21, the first torque sensor 23 and the first encoder 24. The first torque sensor 23 can measure the torque of the motor 5 to be tested when the load is set, and the first encoder 24 can measure the speed and rotation angle of the motor 5 to be tested when the load is set.

[0092] Optionally, according to an embodiment of the present utility model, the first torque sensor 23 is connected to the output shaft of the first servo motor 21 via a first coupling 63 , and the first torque sensor 23 is connected to the first transmission shaft 22 via a second coupling 64 .

[0093] The load testing device 2 includes a first base plate 25, a first support seat 26, a first support frame 27 and a first bearing bracket 28. The first support seat 26, the first support frame 27 and the first bearing bracket 28 are all arranged on the first base plate 25 and arranged along the axial direction of the first transmission shaft 22. The first base plate 25 can provide installation support for the first support seat 26, the first support frame 27 and the first bearing bracket 28, and the first support seat 26, the first support frame 27 and the first bearing bracket 28 are arranged along the axial direction of the first transmission shaft 22, which can make full use of the space on the first base plate 25 and avoid interference between the first support seat 26, the first support frame 27 and the first bearing bracket 28.

[0094] Optionally, according to an embodiment of the utility model, a first connecting hole can be formed on the first base plate 25, and the first support seat 26, the first support frame 27 and the first bearing bracket 28 are respectively formed with second connecting holes, and the first support seat 26, the first support frame 27 and the first bearing bracket 28 can all be bolted through the second connecting hole and the first connecting hole to complete the connection between the first support seat 26, the first support frame 27 and the first bearing bracket 28 and the first base plate 25, so that the connection method between the first support seat 26, the first support frame 27 and the first bearing bracket 28 and the first base plate 25 is simple and has good stability.

[0095] The first servo motor 21 is mounted on the first support seat 26 to support the first servo motor 21, the first torque sensor 23 is mounted on the first support frame 27 to support the first torque sensor 23, and one or more first bearings 281 arranged along the axial direction of the first transmission shaft 22 are provided in the first bearing bracket 28, and the first transmission shaft 22 cooperates with the first bearing 281 to support the first transmission shaft 22. The first support seat 26 can provide support for the first servo motor 21, the first support frame 27 can provide support for the first torque sensor 23, and the first bearing bracket 28 can provide support for the first transmission shaft 22. The first support seat 26, the first support frame 27 and the first bearing bracket 28 are all arranged on the first bottom plate 25 and along the axial direction of the first transmission shaft 22, so that the first servo motor 21, the first torque sensor 23 and the first transmission shaft 22 can be arranged along the axial direction of the first transmission shaft 22.

[0096] Optionally, according to one embodiment of the utility model, the axial hole of the first support seat 26 and the axial hole of the first bearing bracket 28 are at the same height. Through the supporting effect of the first support seat 26 on the first servo motor 21, the supporting effect of the first support bracket 27 on the first torque sensor 23, and the supporting effect of the first bearing bracket 28 on the first transmission shaft 22, the output shaft of the first servo motor 21, the first torque sensor 23, and the first transmission shaft 22 can be made to be at the same height, thereby facilitating the transmittable connection between the first transmission shaft 22, the first torque sensor 23 and the first servo motor 21.

[0097] Among them, the first bearing bracket 28 is provided with one or more first bearings 281 arranged along the axial direction of the first transmission shaft 22. The first transmission shaft 22 cooperates with the first bearing 281 to support the first transmission shaft 22, which can enhance the stability of the first transmission shaft 22 and reduce the vibration generated by the first transmission shaft 22 during the test, thereby avoiding the first transmission shaft 22 from generating additional torque due to vibration, and improving the accuracy of the torque measured by the motor 5 to be tested.

[0098] Reference Figure 8 and Fig. 9 According to some embodiments of the utility model, the outer wall of the first encoder 24 is connected to the first bearing bracket 28 through the first elastic bracket 29, and the first elastic bracket 29 can be elastically deformed in the axial direction of the first transmission shaft 22, so that the first encoder 24 and the first bearing bracket 28 are flexibly connected, and a certain assembly error can be left for the installation of the first encoder 24 on the first bearing bracket 28, so as to avoid collision or interference between the first encoder 24 and the first bearing bracket 28 during assembly. In addition, the first elastic bracket 29 extends in an "S" shape in the axial direction of the first transmission shaft 22, so that the first elastic bracket 29 can be elastically deformed in the axial direction of the first transmission shaft 22.

[0099] Optionally, the first elastic bracket 29 may be made of a thin steel sheet.

[0100] Reference Figure 4 , Figure 8 and Fig.13 According to some embodiments of the utility model, a slide rail 11 extending along a first direction is provided on the machine platform 1, and a first slide groove cooperating with the slide rail 11 is formed on the bottom surface of the first bottom plate 25, so that the load testing device 2 can slide along the extension direction of the slide rail 11. The cooperation between the first slide groove and the slide rail 11 can make the load testing device 2 on the machine platform 1 slide more smoothly, and can reduce the friction and wear between the first bottom plate 25 and the machine platform 1, thereby extending the service life of the load testing device 2.

[0101] The first bottom plate 25 is provided with a first fastening hole 252. When the load test device 2 moves to the set position, the first locking member is passed through the first fastening hole 252 and the machine 1 to fix the load test device 2 on the machine 1. When the load test device 2 moves to the set position, the first bottom plate 25 can be fixed to the machine 1 by passing the first locking member through the first fastening hole 252 and the machine 1, completing the fixation of the load test device 2 on the machine 1, making the fixing method between the load test device 2 and the machine 1 simple and having good stability. For example, it can be avoided that during the test process, the load test device 2 moves due to the vibration of the motor 5 to be tested, thereby affecting the accuracy of the performance parameters of the motor 5 to be tested.

[0102] For example, when it is necessary to move the load testing device 2, the first locking member can be removed so that the load testing device 2 can be movable relative to the slide rail 11, and through the cooperation between the slide rail 11 and the first slide groove, the load testing device 2 can slide smoothly along the extension direction of the slide rail 11; when it is necessary to fix the load testing device 2, through the cooperation between the first slide groove and the slide rail 11, the load testing device 2 is moved toward the set position along the extension direction of the slide rail 11. When the load testing device 2 slides to the set position, the first locking member can be passed through the first fastening hole 252 and the machine 1 to fix the first base plate 25 on the machine 1, thereby completing the fixation of the load testing device 2.

[0103] The motor performance test device 100 includes a temperature box 4, the temperature in the temperature box 4 is adjustable, and a test port 41 is formed on the temperature box 4. When the motor 5 to be tested is installed on the load test device 2, the load test device 2 moves along the slide rail 11, so that the motor 5 to be tested can be moved into the temperature box 4 or out of the temperature box 4 through the test port 41. The temperature in the temperature box 4 is adjustable, and can be used to test the performance parameters of the motor 5 to be tested at different temperatures; the test port 41 can play the role of installation avoidance for the motor 5 to be tested, so that the motor 5 to be tested can be moved into the temperature box 4 or out of the temperature box 4 from the test port 41.

[0104] The load test includes a conventional test mode and an incubator test mode. In the conventional test mode, the motor 5 to be tested is located outside the incubator 4, and in the incubator test mode, the motor 5 to be tested is located inside the incubator 4. For example, when the motor 5 to be tested needs to be tested in the incubator test mode, the first locking member can be removed, and the load test device 2 can be slid along the extension direction of the slide rail 11 and toward the incubator 4 through the cooperation between the first slide groove and the slide rail 11, so that the motor 5 to be tested is moved into the incubator 4 through the test port 41, and the first locking member is passed through the first bottom plate 25 and the machine 1, and the first bottom plate 25 is fixed on the machine 1, so that the load test device 2 is fixed, and the temperature in the incubator 4 is adjusted to test the performance parameters of the motor 5 to be tested in the incubator test mode.

[0105] When the motor 5 to be tested needs to be tested in the conventional test mode, the first locking piece can be removed, and the load testing device 2 can be slid along the extension direction of the slide rail 11 and in the direction away from the temperature box 4 through the cooperation between the first slide groove and the slide rail 11, so that the motor 5 to be tested can be moved out of the temperature box 4 through the test port 41, and the first locking piece is passed through the first bottom plate 25 and the machine 1 to fix the first bottom plate 25 on the machine 1, thereby completing the fixation of the load testing device 2 and testing the performance parameters of the motor 5 to be tested in the conventional test mode.

[0106] Reference Figure 10-12 According to some embodiments of the present invention, the load testing device 2 also includes an extension component 2a, the extension component 2a includes an extension shaft 211, and the extension shaft 211 is detachably connected to the other end of the first transmission shaft 22, which can facilitate the load testing device 2 to switch between the conventional test mode and the incubator test mode.

[0107] In the conventional test mode, the extension shaft 211 is removed from the first transmission shaft 22, and the output shaft of the motor 5 to be tested is directly connected to the other end of the first transmission shaft 22; in the incubator test mode, one end of the extension shaft 211 is connected to the other end of the first transmission shaft 22, and the output shaft of the motor 5 to be tested is directly connected to the other end of the extension shaft 211. In the incubator test mode, the extension shaft 211 can realize a drivable connection between the output shaft of the motor 5 to be tested and the first transmission shaft 22; and when the conventional test mode is switched to the incubator test mode, the load test device 2 needs to be moved so that the motor 5 to be tested is located in the incubator 4. By setting the extension shaft 211 between the first transmission shaft 22 and the motor 5 to be tested, the moving distance of the load test device 2 can be reduced.

[0108] Reference Figure 10-12 According to some embodiments of the utility model, the output shaft of the motor 5 to be tested is formed with a first internal spline 51, the other end of the first transmission shaft 22 is formed with a first external spline 22a, one end of the extension shaft 211 is formed with a second internal spline 212, and the other end of the extension shaft 211 is formed with a second external spline 213; wherein, in the conventional test mode, the first internal spline 51 is connected to the first external spline 22a; in the incubator test mode, the first internal spline 51 is connected to the second external spline 213, and the first external spline 22a is connected to the second internal spline 212. In the conventional test mode, the other end of the first transmission shaft 22 can be connected to the output shaft of the motor 5 to be tested by connecting the first external spline 22a to the first internal spline 51, so that the first transmission shaft 22 can be directly connected to the motor 5 to be tested.

[0109] In the incubator test mode, the output shaft of the motor 5 to be tested can be connected to the other end of the extension shaft 211 by connecting the first internal spline 51 with the second external spline 213, and the other end of the first transmission shaft 22 can be connected to one end of the extension shaft 211 by connecting the first external spline 22a with the second internal spline 212, so that the output shaft of the motor 5 to be tested can be indirectly connected to the first transmission shaft 22 through the extension shaft 211, thereby realizing a transmittable connection between the output shaft of the motor 5 to be tested and the first transmission shaft 22.

[0110] Reference Fig.16 and Fig.19 According to some embodiments of the utility model, the extension component 2a also includes an extension support member 214, which is suitable for supporting the slide rail 11 and is detachably connected to the first bearing bracket 28. The extension shaft 211 is passed through the extension support member 214, and a second slide groove 215 that cooperates with the slide rail 11 is formed on the bottom surface of the extension support member 214, so that the extension support member 214 can slide along the extension direction of the slide rail 11. The cooperation between the second slide groove 215 and the slide rail 11 can make the extension support member 214 slide on the machine 1 more smoothly, and can reduce the friction and wear between the extension support member 214 and the machine 1, thereby extending the service life of the extension support member 214.

[0111] The extended support member 214 is provided with a second fastening hole 216. When the load test device 2 moves to the set position, the second locking member is passed through the second fastening hole 216 and the machine 1 to fix the extended support member 214 on the machine 1. When the load test device 2 moves to the set position, the extended support member 214 can be fixed on the machine 1 by passing the second locking member through the second fastening hole 216 and the machine 1, completing the fixing process of the extended support member 214 on the machine 1, so that the fixing method between the extended support member 214 and the machine 1 can be simple and have strong stability. For example, it can be avoided that during the test process, the extended support member 214 moves due to the vibration of the motor 5 to be tested, thereby affecting the accuracy of the performance parameters of the motor 5 to be tested.

[0112] Optionally, according to one embodiment of the utility model, in the incubator test mode, when it is necessary to move the load test device 2, the first locking member and the second locking member can be removed so that the load test device 2 and the extended support member 214 can be movable relative to the slide rail 11, and through the cooperation between the slide rail 11 and the first slide groove and the second slide groove 215, the load test device 2 and the extended support member 214 can be slid along the extension direction of the slide rail 11 and toward the direction close to the incubator 4, so that the motor 5 to be tested can be moved into the incubator 4.

[0113] When the motor 5 to be tested is moved into the temperature box 4 , the load test device 2 and the extended support member 214 can be fixed to the machine 1 by the first locking member passing through the first fastening hole 252 and the machine 1 , and the second locking member passing through the second fastening hole 216 and the machine 1 .

[0114] Among them, in the conventional test mode, the extended support member 214 is removed from the first bearing bracket 28, so that one end of the adjacent output shaft of the motor 5 to be tested is directly connected to the first bearing bracket 28, thereby realizing a direct connection between the output shaft of the motor 5 to be tested and the first transmission shaft 22; in the incubator test mode, the extended support member 214 is suitable for being connected to the first bearing bracket 28 and connected between the first bearing bracket 28 and the motor 5 to be tested, so that one end of the extended shaft 211 is connected to the other end of the first transmission shaft 22, and the output shaft of the motor 5 to be tested is directly connected to the other end of the extended shaft 211, and the extended shaft 211 can realize a transmittable connection between the output shaft of the motor 5 to be tested and the first transmission shaft 22.

[0115] Optionally, according to an embodiment of the utility model, the motor performance testing equipment 100 also includes a current connection terminal board 7, which is installed on the machine 1. The current connection terminal board 7 can provide current for the motor 5 to be tested. The current connection terminal board 7 is provided with a plurality of connection terminals 72. During the use of the current connection terminal board 7, the insulating cap 71 needs to be installed on the connection terminal 72.

[0116] When the motor 5 to be tested is in the normal test mode, the first servo motor 21 can provide a set load and resistance for the motor 5 to be tested, so that the current connection terminal board 7 is connected to the motor 5 to be tested, and the motor 5 to be tested starts to rotate. The rotation of the motor 5 to be tested can be transmitted to the first transmission shaft 22. The first transmission shaft 22 can transmit the rotation of the motor 5 to be tested to the first servo motor 21, the first torque sensor 23 and the first encoder 24. The first torque sensor 23 can measure the torque of the motor 5 to be tested when the load is set, and the first encoder 24 can measure the speed and rotation angle of the motor 5 to be tested when the load is set.

[0117] When the motor 5 to be tested is in the incubator test mode, the first servo motor 21 can provide a set load and resistance for the motor 5 to be tested, so that the current connection terminal board 7 is connected to the motor 5 to be tested, and the motor 5 to be tested starts to rotate. The rotation of the motor 5 to be tested can be transmitted to the extension shaft 211, and the extension shaft 211 can transmit the rotation of the motor 5 to be tested to the first transmission shaft 22. The first transmission shaft 22 can transmit the rotation of the motor 5 to be tested to the first servo motor 21, the first torque sensor 23 and the first encoder 24. The first torque sensor 23 can measure the torque of the motor 5 to be tested when the load is set, and the first encoder 24 can measure the speed and rotation angle of the motor 5 to be tested when the load is set.

[0118] Reference Figure 5 and Fig.12 According to some embodiments of the utility model, the extension support member 214 includes an extension tube 218, a support flange 219 and an extension tube bracket 220. The extension tube 218 is detachably connected to the first bearing bracket 28. The extension shaft 211 is passed through the extension tube 218. One or more second bearings 221 arranged along the axial direction of the extension shaft 211 are provided in the extension tube 218. The extension tube 218 is sleeved on the outer periphery of the extension shaft 211. The second bearing 221 cooperates with the extension shaft 211 to support the extension shaft 211, which can enhance the stability of the extension shaft 211 and reduce the vibration generated by the extension shaft 211 during the test, thereby avoiding the extension shaft 211 from generating additional torque due to vibration and improving the accuracy of the measured torque.

[0119] A support flange 219 is installed on the outer circumference of the extension tube 218, and the support flange 219 is fixed and supported on the extension tube bracket 220. The extension tube bracket 220 is supported on the slide rail 11, which can reduce the vibration of the extension tube 218 during the test and enhance the stability of the extension tube 218. A second slide groove 215 is formed on the bottom surface of the extension tube bracket 220, and a second fastening hole 216 is provided on the extension tube bracket 220. The cooperation between the second slide groove 215 and the slide rail 11 can make the extension tube bracket 220 slide smoothly on the machine platform 1, and can reduce the friction and wear between the extension tube bracket 220 and the machine platform 1, thereby extending the service life of the extension tube bracket 220.

[0120] For example, when the load testing device 2 moves to the set position, the extension tube bracket 220 can be fixed on the machine 1 by passing the second locking piece through the second fastening hole 216 and the machine 1, thereby completing the fixing process of the extension tube bracket 220 on the machine 1, which can make the fixing method between the extension tube bracket 220 and the machine 1 simple and have strong stability.

[0121] Reference Fig.11 and Fig.12 According to some embodiments of the utility model, the extension tube 218 and the first bearing bracket 28 are connected and cooperated via a first stop structure 61. The first stop structure 61 can play a positioning role in the connection between the extension tube 218 and the first bearing bracket 28, thereby ensuring that the assembly position between the extension tube 218 and the first bearing bracket 28 is accurate; and can facilitate the disassembly and assembly of the extension tube 218 on the first bearing bracket 28.

[0122] A mounting plate 52 is provided on the motor 5 to be tested, and the extension tube 218 and the mounting plate 52 are connected and cooperated with each other via a second stop structure 62. The second stop structure 62 can play a positioning role in the connection between the extension tube 218 and the motor 5 to be tested, thereby ensuring that the assembly position between the extension tube 218 and the motor 5 to be tested is accurate; and can facilitate the disassembly and assembly of the extension tube 218 on the motor 5 to be tested.

[0123] Optionally, according to one embodiment of the utility model, the extension tube 218 and the first bearing bracket 28 are connected and matched by a first stop structure 61, and the extension tube 218 and the first bearing bracket 28 are threadedly connected by bolts to complete the assembly between the extension tube 218 and the first bearing bracket 28; the extension tube 218 and the mounting plate 52 of the motor to be tested 5 are connected and matched by a second stop structure 62, and the extension tube 218 and the motor to be tested 5 are threadedly connected by bolts to complete the assembly between the extension tube 218 and the motor to be tested 5.

[0124] Reference Figure 19-21 According to some embodiments of the utility model, the extension tube bracket 220 includes a support base 222, a bracket seat 223, an adjustment rod 224 and a guide rod 225. The support base 222 is supported on the slide rail 11 and is formed with a second slide groove 215 and a second fastening hole 216. The bracket seat 223 is located above the support base 222. The adjustment rod 224 and the guide rod 225 are both arranged on the bottom surface of the bracket seat 223 and extend in the up-down direction. The support base 222 is formed with a guide hole 226 and an adjustment hole 227. The adjustment rod 224 is threadedly connected with the adjustment hole 227. The guide rod 225 is inserted into the guide hole 226 and can move in the up-down direction. The support flange 219 is fixed and supported on the bracket seat 223. The support base 222 can provide support for the bracket seat 223, the bracket seat 223 can provide support for the support flange 219, and the guide hole 226 can guide the movement of the guide rod 225. The adjustment rod 224 and the guide rod 225 are both disposed on the bottom surface of the bracket seat 223 and extend in the up-down direction. The adjustment rod 224 is threadedly connected to the adjustment hole 227 and the guide rod 225 is inserted into the guide hole 226 , so that the bracket seat 223 can be installed on the support base 222 .

[0125] By threading the adjusting rod 224 with the adjusting hole 227 , the guide rod 225 is inserted into the guide hole 226 and is movable in the up and down directions, so that the position of the bracket seat 223 can be moved in the up and down directions, thereby realizing the height adjustment of the extension tube bracket 220 .

[0126] For example, when the height of the bracket seat 223 needs to be adjusted, the guide rod 225 can be moved in the guide hole 226 along the up and down direction, and through the threaded connection between the adjustment rod 224 and the adjustment hole 227, the adjustment rod 224 can be moved in the up and down direction in the adjustment hole 227, thereby moving the bracket seat 223 to the set position and completing the height adjustment of the extension tube bracket 220.

[0127] Reference Figure 4 and Figure 5 According to some embodiments of the present invention, the motor performance test device 100 further includes a heat insulation seal 53, which is disposed on the axial side of the support flange 219 away from the first transmission shaft 22. For example, the heat insulation seal 53 may be pasted on the axial side of the support flange 219 away from the first transmission shaft 22, so that the connection between the heat insulation seal 53 and the support flange 219 is simple and has strong stability.

[0128] Among them, in the incubator test mode, the thermal insulation seal 53 abuts against the outer wall surface of the incubator 4 and surrounds the outer peripheral side of the test port 41, which can enhance the sealing effect between the extended support 214 and the incubator 4 and prevent high temperature or low temperature air from leaking from the test port 41, thereby improving the accuracy of the data measured in the incubator test mode.

[0129] Reference Fig. 22 , Fig.24 and Fig.25 According to some embodiments of the present invention, the second transmission shaft 32 and the second torque sensor 33 are arranged along the axial direction of the second transmission shaft 32, the second torque sensor 33 is connected between one end of the second transmission shaft 32 and the output shaft of the second servo motor 31, and the second encoder 34 is sleeved on the outer peripheral side of the second transmission shaft 32. The second torque sensor 33 can measure the torque on the second transmission shaft 32, so as to obtain the torque of the motor 5 to be tested. The second encoder 34 is sleeved on the outer peripheral side of the second transmission shaft 32, and can directly measure the speed and rotation angle of the second transmission shaft 32, so as to improve the accuracy of the torque, speed and rotation angle of the motor 5 to be tested.

[0130] For example, when the motor 5 to be tested is in a no-load test state, the second servo motor 31 is energized and starts to rotate. The rotation of the second servo motor 31 can be transmitted to the second transmission shaft 32. The second transmission shaft 32 can transmit the rotation of the second servo motor 31 to the motor 5 to be tested, the second torque sensor 33 and the second encoder 34. The rotation of the second servo motor 31 can drive the motor 5 to be tested to rotate via the second transmission shaft 32. The second torque sensor 33 can measure the torque of the motor 5 to be tested in the no-load state. The second encoder 34 can measure the speed and rotation angle of the motor 5 to be tested in the no-load state.

[0131] Optionally, according to an embodiment of the present invention, the second torque sensor 33 is connected to the output shaft of the second servo motor 31 via a third coupling 65 , and the second torque sensor 33 is connected to the second transmission shaft 32 via a fourth coupling 66 .

[0132] The no-load test device 3 includes a second base plate 35, a second support seat 36, a second support frame 37 and a second bearing bracket 38. The second support seat 36, the second support frame 37 and the second bearing bracket 38 are all arranged on the second base plate 35 and arranged along the axial direction of the second transmission shaft 32. The second base plate 35 can provide installation support for the second support seat 36, the second support frame 37 and the second bearing bracket 38, and the second support seat 36, the second support frame 37 and the second bearing bracket 38 are arranged along the axial direction of the second transmission shaft 32, which can make full use of the space on the second base plate 35 and avoid interference between the second support seat 36, the second support frame 37 and the second bearing bracket 38.

[0133] Optionally, according to one embodiment of the utility model, the axial hole of the second support seat 36 and the axial hole of the second bearing bracket 38 are at the same height. Through the supporting effect of the second support seat 36 on the second servo motor 31, the supporting effect of the second support bracket 37 on the second torque sensor 33, and the supporting effect of the second bearing bracket 38 on the second transmission shaft 32, the output shaft of the second servo motor 31, the second torque sensor 33, and the second transmission shaft 32 can be made to be at the same height, thereby facilitating the transmittable connection between the second transmission shaft 32, the second torque sensor 33 and the second servo motor 31.

[0134] For example, a third connecting hole can be formed on the second base plate 35, and the second support seat 36, the second support frame 37 and the second bearing bracket 38 are respectively formed with fourth connecting holes. The second support seat 36, the second support frame 37 and the second bearing bracket 38 can all be bolted through the third connecting hole and the fourth connecting hole to complete the connection between the second support seat 36, the second support frame 37 and the second bearing bracket 38 and the second base plate 35, so that the connection method between the second support seat 36, the second support frame 37 and the second bearing bracket 38 and the second base plate 35 is simple and has strong stability.

[0135] The second servo motor 31 is mounted on the second support seat 36 to support the second servo motor 31, the second torque sensor 33 is mounted on the second support frame 37 to support the second torque sensor 33, and the second bearing bracket 38 is provided with one or more third bearings 381 arranged along the axial direction of the second transmission shaft 32, and the second transmission shaft 32 is mounted on the third bearing 381 to support the second transmission shaft 32. The second support seat 36 can provide support for the second servo motor 31, the second support frame 37 can provide support for the second torque sensor 33, and the second bearing bracket 38 can provide support for the second transmission shaft 32. The second support seat 36, the second support frame 37 and the second bearing bracket 38 are all arranged on the second bottom plate 35 and along the axial direction of the second transmission shaft 32, so that the second servo motor 31, the second torque sensor 33 and the second transmission shaft 32 can be arranged axially along the second transmission shaft 32.

[0136] Among them, the second bearing bracket 38 is provided with one or more third bearings 381 arranged along the axial direction of the second transmission shaft 32. The second transmission shaft 32 cooperates with the third bearing 381 to support the second transmission shaft 32, which can enhance the stability of the second transmission shaft 32 and reduce the vibration generated by the second transmission shaft 32 during the test, thereby avoiding the second transmission shaft 32 from generating additional torque due to vibration, and improving the accuracy of the torque measured by the motor 5 to be tested.

[0137] Reference Fig.23 and Fig.25 According to some embodiments of the utility model, the outer wall of the second encoder 34 is connected to the second bearing bracket 38 via a second elastic bracket 39, and the second elastic bracket 39 can be elastically deformed in the axial direction of the second transmission shaft 32, so that the second encoder 34 and the second bearing bracket 38 are flexibly connected, and a certain assembly error can be left for the installation of the second encoder 34 on the second bearing bracket 38, so as to avoid interference between the second encoder 34 and the second bearing bracket 38. In addition, the second elastic bracket 39 extends in an "S" shape in the axial direction of the second transmission shaft 32, so that the second elastic bracket 39 can be elastically deformed in the axial direction of the second transmission shaft 32.

[0138] Optionally, the second elastic bracket 39 may be made of a thin steel sheet.

[0139] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0140] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A motor performance testing device, characterized in that: include: Machine; A load testing device, which is arranged on the machine platform and is used to test the performance parameters of the motor to be tested under a load state. Under the load testing state, the motor to be tested is suitable for being installed on the load testing device; A no-load test device, which is arranged on the machine platform and is used to test the performance parameters of the motor to be tested under a no-load state. Under the no-load test state, the motor to be tested is suitable for being installed on the no-load test device; A temperature box, the temperature in the temperature box is adjustable, a test port is formed on the temperature box, and the load testing device can be moved along the machine platform so that the motor to be tested can be moved into or out of the temperature box through the test port.

2. The motor performance testing device according to claim 1, characterized in that: The platform is provided with a slide rail extending in a first direction, the load testing device is supported on the slide rail and is slidable along the extension direction of the slide rail, and when the load testing device moves to a set position, the load testing device is fixed to the platform by a first locking member.

3. The motor performance testing device according to claim 1, characterized in that: The load testing device comprises a first servo motor, a first transmission shaft, a first torque sensor and a first encoder, wherein the first torque sensor and the first encoder are both connected to the first transmission shaft, one end of the first transmission shaft is connected to the output shaft of the first servo motor, and the other end of the first transmission shaft is suitable for being connected to the output shaft of the motor to be tested; The no-load testing device includes a second servo motor, a second transmission shaft, a second torque sensor and a second encoder. The second torque sensor and the second encoder are both connected to the second transmission shaft. One end of the second transmission shaft is connected to the output shaft of the second servo motor, and the other end of the second transmission shaft is suitable for being connected to the output shaft of the motor to be tested.

4. The motor performance testing device according to claim 3, characterized in that: The first transmission shaft and the second transmission shaft both extend along a first direction, the load testing device and the no-load testing device are arranged along a second direction, and in the second direction, the no-load testing device and the load testing device are arranged opposite to each other, and the second direction is perpendicular to the first direction.

5. The motor performance testing equipment according to claim 3, characterized in that: The first transmission shaft and the first torque sensor are arranged along the axial direction of the first transmission shaft, the first torque sensor is connected between one end of the first transmission shaft and the output shaft of the first servo motor, and the first encoder is sleeved on the outer peripheral side of the first transmission shaft; The load testing device also includes a first base plate, a first support seat, a first support frame and a first bearing support. The first support seat, the first support frame and the first bearing support are all arranged on the first base plate and arranged along the axial direction of the first transmission shaft. The first servo motor is installed on the first support seat, and the first torque sensor is installed on the first support frame. One or more first bearings arranged along the axial direction of the first transmission shaft are provided in the first bearing support, and the first transmission shaft cooperates with the first bearing.

6. The motor performance testing device according to claim 5, characterized in that: The outer wall of the first encoder is connected to the first bearing bracket via a first elastic bracket, and the first elastic bracket can be elastically deformed in the axial direction of the first transmission shaft; the first elastic bracket extends in an "S" shape in the axial direction of the first transmission shaft.

7. The motor performance testing device according to claim 5, characterized in that: The load test includes a conventional test mode and a temperature box test mode. In the conventional test mode, the motor to be tested is located outside the temperature box. In the temperature box test mode, the motor to be tested is located inside the temperature box. The load testing device further includes an extension assembly, wherein the extension assembly includes an extension shaft, and the extension shaft is detachably connected to the other end of the first transmission shaft; Wherein, in the conventional test mode, the extension shaft is removed from the first transmission shaft, and the output shaft of the motor to be tested is directly connected to the other end of the first transmission shaft; In the temperature chamber test mode, one end of the extension shaft is connected to the other end of the first transmission shaft, and the output shaft of the motor to be tested is directly connected to the other end of the extension shaft.

8. The motor performance testing device according to claim 7, characterized in that: The output shaft of the motor to be tested is formed with a first internal spline, the other end of the first transmission shaft is formed with a first external spline, one end of the extension shaft is formed with a second internal spline, and the other end of the extension shaft is formed with a second external spline; Wherein, in the conventional test mode, the first internal spline is connected to the first external spline; in the temperature box test mode, the first internal spline is connected to the second external spline, and the first external spline is connected to the second internal spline.

9. The motor performance testing device according to claim 7, characterized in that: The machine platform is provided with a slide rail extending in a first direction, and a first slide groove cooperating with the slide rail is formed on the bottom surface of the first bottom plate, so that the load testing device can slide along the extension direction of the slide rail, and the extension assembly also includes an extension support member, the extension support member is suitable for supporting the slide rail and being detachably connected to the first bearing bracket, the extension shaft is passed through the extension support member, and a second slide groove cooperating with the slide rail is formed on the bottom surface of the extension support member, and a second fastening hole is provided on the extension support member, and when the load testing device moves to a set position, a second locking member is passed through the second fastening hole and the machine platform to fix the extension support member on the machine platform; Wherein, in the conventional test mode, the extended support member is removed from the first bearing bracket; in the temperature box test mode, the extended support member is suitable for connecting to the first bearing bracket and connected between the first bearing bracket and the motor to be tested.

10. The motor performance testing device according to claim 9, characterized in that: The extended support member includes an extended tube, a supporting flange and an extended tube bracket, the extended tube is detachably connected to the first bearing bracket, the extended shaft is passed through the extended tube, one or more second bearings arranged at intervals along the axial direction of the extended shaft are provided in the extended tube, the extended tube is sleeved on the outer circumference of the extended shaft, the extended shaft cooperates with the second bearing to support the extended shaft, a supporting flange is installed on the outer circumference of the extended tube, the supporting flange is fixed to and supported by the extended tube bracket, the extended tube bracket is supported by the slide rail, the second slide groove is formed on the bottom surface of the extended tube bracket, and the second fastening hole is provided on the extended tube bracket.

11. The motor performance testing device according to claim 10, characterized in that: The extension tube is connected and matched with the first bearing bracket via a first stop structure, a mounting plate is provided on the motor to be tested, and the extension tube is connected and matched with the mounting plate via a second stop structure.

12. The motor performance testing device according to claim 10, characterized in that: The extension tube bracket includes a support base, a bracket seat, an adjustment rod and a guide rod. The support base is supported on the slide rail and is formed with the second slide groove and the second fastening hole. The bracket seat is located above the support base. The adjustment rod and the guide rod are both arranged on the bottom surface of the bracket seat and extend in the up and down directions. A guide hole and an adjustment hole are formed on the support base. The adjustment rod is threadedly connected to the adjustment hole. The guide rod is inserted into the guide hole and can move in the up and down directions. The support flange is fixed and supported on the bracket seat.

13. The motor performance testing device according to claim 10, characterized in that: It also includes a heat-insulating seal, which is arranged on the axial side of the support flange away from the first transmission shaft; Wherein, in the temperature box test mode, the heat insulating seal abuts against the outer wall surface of the temperature box and surrounds the outer peripheral side of the test port.

14. The motor performance testing device according to claim 3, characterized in that: The second transmission shaft and the second torque sensor are arranged along the axial direction of the second transmission shaft, the second torque sensor is connected between one end of the second transmission shaft and the output shaft of the second servo motor, and the second encoder is sleeved on the outer peripheral side of the second transmission shaft; The no-load test device also includes a second base plate, a second support seat, a second support frame and a second bearing frame. The second support seat, the second support frame and the second bearing frame are all arranged on the second base plate and along the axial direction of the second transmission shaft. The second servo motor is installed on the second support seat to support the second servo motor. The second torque sensor is installed on the second support frame to support the second torque sensor. One or more third bearings arranged along the axial direction of the second transmission shaft are provided in the second bearing frame. The second transmission shaft is installed on the third bearing to support the second transmission shaft.

15. The motor performance testing device according to claim 14, characterized in that: The outer wall of the second encoder is connected to the second bearing bracket via a second elastic bracket, and the second elastic bracket can be elastically deformed in the axial direction of the second transmission shaft; the second elastic bracket extends in an "S" shape in the axial direction of the second transmission shaft.

Images