Test device

Abstract

The embodiment of the utility model provides test equipment. The test equipment comprises a base station; the resistance simulation device is arranged on the base station and is used for being in contact with a tire with a to-be-tested hub motor, so that the tire is subjected to resistance generated by the resistance simulation device during rotation; the mounting frame is movably arranged on the base table, and the mounting frame is located above the resistance simulation device and used for mounting a tire; and the load simulation device comprises a connecting seat and a plurality of balancing weights, the balancing weights are mounted on the connecting seat, and the connecting seat is connected with the mounting frame, so that the tire rotates relative to the resistance simulation device under the gravity action of bearing the balancing weights. Through the arrangement, the working load encountered by the hub motor in practical application can be simulated, and the accuracy of a test result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor test technical field especially is related to a test equipment. BACKGROUND

[0002] As a new type of electric drive system, the in-wheel motor is widely used in electric vehicles and other mobile chassis fields. The in-wheel motor has the advantages of high efficiency, compact structure, fast response, etc., and becomes an important part of many automation and electric drive systems. However, in the reliability and durability evaluation process of the in-wheel motor, especially in the aging test, many challenges are faced.

[0003] In the existing test equipment, the in-wheel motor is usually tested in an unloaded state, and the in-wheel motor does not bear the actual load and only runs in a static condition. Although this test method is simple, it cannot truly simulate the working load encountered by the in-wheel motor in actual application, so there is a large deviation between the test results and the actual use scene, and it cannot effectively predict the performance degradation and aging problems that may occur in the in-wheel motor during long-term use. Therefore, the existing test equipment has problems such as insufficient test reliability and inaccurate test structure in actual application. SUMMARY

[0004] The utility model aims at solving one of the technical problems existing in the prior art. To this end, the utility model provides a test equipment which can simulate working load and improve the accuracy of test results.

[0005] The utility model embodiment provides a kind of test equipment, and the test equipment includes: base station;Resistance simulation device, the resistance simulation device is set on the base station, for being contacted with the tire of having in-wheel motor to be tested to make the tire when rotating receive the resistance generated by the resistance simulation device;Mounting bracket, the mounting bracket is movably arranged on the base station, and the mounting bracket is located above the resistance simulation device, to be used to install the tire;Load simulation device, the load simulation device includes connecting seat and several counterweights, the several counterweights are installed on the connecting seat, and the connecting seat is connected with the mounting bracket, to make the tire under the gravity of the several counterweights be loaded relative to the resistance simulation device rotation.

[0006] The test equipment provided by the utility model embodiment has at least the following beneficial effects:

[0007] By setting the mounting bracket and the base station movably connected, the connecting seat and the mounting bracket are connected, and the several counterweights can transmit load to the tire through the connecting seat and the mounting bracket, so that the tire rotates relative to the resistance simulation device under the gravity of the several counterweights being loaded, to simulate the working load encountered by the in-wheel motor in actual application, and improve the accuracy of test results.

[0008] In one embodiment of the implementation, the mounting frame comprises a fixing seat for mounting the tire and a connecting rod in sliding connection with the base, the connecting rod connecting the fixing seat and the connecting seat.

[0009] In one embodiment of the implementation, the base is provided with a receiving cavity, one end of the connecting rod is connected with the fixing seat, and the other end of the connecting rod extends into the receiving cavity and is connected with the connecting seat.

[0010] In one embodiment of the implementation, the base is provided with a guide structure, the guide structure is provided with a guide hole, and the connecting rod is in sliding fit with the guide hole.

[0011] In one embodiment of the implementation, the number of the weight blocks in the plurality of weight blocks is multiple, and the plurality of weight blocks are stacked in the vertical direction on the top side of the connecting seat.

[0012] In one embodiment of the implementation, the test device comprises a light emitter, the weight block is provided with a first detection hole, and the connecting seat is provided with a second detection hole.

[0013] When the plurality of weight blocks are placed in the preset position of the connecting seat, the plurality of first detection holes and the second detection holes are sequentially communicated to form a light channel, and the light emitted by the light emitter can pass through the light channel.

[0014] In one embodiment of the implementation, the test device comprises a signal emitter and a signal receiver, the signal emitter and the signal receiver are respectively located on two sides of the plurality of weight blocks in the stacking direction, and the weight block is provided with a third detection hole.

[0015] When the plurality of weight blocks are placed in the preset position of the connecting seat, the plurality of third detection holes are sequentially communicated to form a signal channel, and the signal emitted by the signal emitter can pass through the signal channel and reach the signal receiver.

[0016] In one embodiment of the implementation, the connecting seat is provided with a mounting frame, the plurality of weight blocks are stacked in the mounting frame, and the mounting frame can abut the side surface of the plurality of weight blocks to limit the plurality of weight blocks from leaving the mounting frame.

[0017] In one embodiment of the implementation, the weight block is provided with a mounting hole, the connecting seat is provided with a limiting column, and the limiting column sequentially passes through the plurality of mounting holes to limit the plurality of weight blocks from moving along the horizontal plane relative to the connecting seat.

[0018] In one embodiment of the embodiment, the testing device comprises a damping structure arranged on the base and connected with the mounting frame and / or the connecting seat, and the damping structure is used for absorbing the vibration generated in the testing process of the wheel hub motor.

[0019] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood from the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0021] Figure 1 is a perspective structural schematic view of the testing device under one embodiment of the embodiment of the present application;

[0022] Figure 2 is a perspective structural schematic view of the testing device under one embodiment of the embodiment of the present application; Figure 1

[0023] Figure 3 is a perspective structural schematic view of the motor mounting assembly under one embodiment of the embodiment of the present application; Figure 2

[0024] Figure 4 is a perspective structural schematic view of the load simulation device under one embodiment of the embodiment of the present application; Figure 3

[0025] Figure 5 is a sectional structural schematic view of the load simulation device under one embodiment of the embodiment of the present application; Figure 4

[0026] Figure 6 is a sectional structural schematic view of the load simulation device under another embodiment of the embodiment of the present application;

[0027] Figure 7 is a sectional structural schematic view of the load simulation device under another embodiment of the embodiment of the present application;

[0028] Figure 8 is a sectional structural schematic view of the load simulation device under another embodiment of the embodiment of the present application;

[0029] Figure 9 is a sectional structural schematic view of the load simulation device under another embodiment of the embodiment of the present application;

[0030] Figure 10 is a sectional structural schematic view of the load simulation device under another embodiment of the embodiment of the present application.

[0031] LIST OF REFERENCE NUMERALS: ​​​​

[0032] Test device 1000; motor mounting assembly 100; base 10; accommodating cavity 101; guide structure 11; guide hole 111; first guide block 112; second guide block 113; first side plate 14; second side plate 15; mounting frame 20; fixing seat 21; connecting rod 22; limiting ring 221; load simulation device 30; connecting seat 31; bearing surface 311; second detection hole 312; mounting frame 313; limiting column 314; counterweight structure 32; counterweight block 321; first detection hole 322; third detection hole 323; mounting hole 324; fan 40; light emitter 51; signal emitter 52; signal receiver 53; resistance simulation device 200; ground simulation assembly 210; first pulley 2101; second pulley 2102; synchronous belt 2103; protrusion 2104; brake 220; fan 230; wheel hub motor 300. DETAILED DESCRIPTION

[0033] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as a limitation of the present application.

[0034] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0035] In the description of the present application, the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only used for distinguishing technical features for the purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0036] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0037] In the description of the present utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the present utility model. In the specification, the illustrative description 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.

[0038] Please refer to Figure 1 and Figure 2 , Figure 1 is a three-dimensional structural schematic view of the test equipment 1000 under an embodiment of the present utility model embodiment; Figure 2 is Figure 1 a three-dimensional structural schematic view of part of the test equipment 1000. The present utility model embodiment provides a test equipment 1000, the test equipment 1000 includes motor installation assembly 100 and resistance simulation device 200, the motor installation assembly 100 is used to install the tire with the wheel hub motor 300 to be tested, and the resistance simulation device 200 is used to contact with the tire to make the tire receive the resistance generated by the resistance simulation device 200 when rotating. Specifically, the resistance simulation device 200 abuts with the bottom side of the tire, under the driving of the wheel hub motor 300, the tire can move along the resistance simulation device 200 to simulate road test.

[0039] The following describes the motor installation assembly 100 in the test equipment 1000 provided by the present utility model embodiment.

[0040] Please refer to Figure 3 and Figure 4 , Figure 3 is Figure 2 a three-dimensional structural schematic view of part of the motor installation assembly 100, Figure 4 is Figure 3 a three-dimensional structural schematic view of the load simulation device 30 of the present utility model embodiment. The present utility model embodiment provides a motor installation assembly 100, the motor installation assembly 100 includes base 10, mounting frame 20 and load simulation device 30. The base 10 is used to support the wheel hub motor 300. The mounting frame 20 is movably arranged on the base 10, and the mounting frame 20 is located above the resistance simulation device 200 to install the tire. The load simulation device 30 includes connecting seat 31 and counterweight structure 32, the counterweight structure 32 includes a plurality of counterweight blocks 321, the plurality of counterweight blocks 321 are installed on the connecting seat 31, and the connecting seat 31 is connected with the mounting frame 20 to make the tire rotate relative to the resistance simulation device 200 under the action of the gravity of the plurality of counterweight blocks 321.

[0041] Specifically, the base 10 is arranged on a support surface such as the ground or the surface of another device. The mounting frame 20 is movably connected to the base 10 by means of rotating fit or sliding fit. The counterweight structure 32 is arranged on the connecting seat 31 by means of placement or hanging, so that the gravity of the counterweight structure 32 can be transmitted to the wheel hub motor 300 through the connecting seat 31 and the mounting frame 20, thereby simulating the working load. It can be understood that the wheel hub motor 300 will be subjected to working loads such as the vehicle frame, other components on the vehicle frame, and passengers in actual application. The presence of the counterweight structure 32 can simulate these working loads through its gravity, thereby improving the reliability of the test.

[0042] By movably connecting the mounting frame 20 to the base 10 and connecting the connecting seat 31 to the mounting frame 20, the plurality of counterweight blocks 321 can transmit the load to the tire through the connecting seat 31 and the mounting frame 20, so that the tire rotates relative to the resistance simulation device 200 under the action of the gravity of the plurality of counterweight blocks 321, thereby simulating the working load encountered by the wheel hub motor 300 in actual application and improving the accuracy of the test results. At the same time, the number of counterweight blocks 321 can be changed to adjust the working load of the wheel hub motor 300, thereby improving the applicability.

[0043] In one embodiment of the embodiment, please refer to Figure 3 The mounting frame 20 includes a fixing seat 21 and a connecting rod 22. The fixing seat 21 is used to mount the tire. The connecting rod 22 is slidably connected to the base 10. The connecting rod 22 connects the fixing seat 21 and the connecting seat 31. By slidably connecting the connecting rod 22 to the base 10, the connecting rod 22 can drive the fixing seat 21 and the wheel hub motor 300 on the fixing seat 21 to slide relative to the base 10, so as to transmit the gravity of the counterweight structure 32 to the wheel hub motor 300 and simulate the working load. At the same time, different specifications of wheel hub motors 300 can be fitted, so as to meet the aging test of different specifications of wheel hub motors 300 and improve the applicability.

[0044] In this embodiment, the connecting rod 22 and the base 10 slide relative to each other in the vertical direction, and the gravity of the counterweight structure 32 can act on the wheel hub motor 300 to a greater extent.

[0045] In this embodiment, please refer to Figure 2 The motor mounting assembly 100 includes a fan 40. The fan 40 is mounted on the top side of the fixing seat 21. The wheel hub motor 300 is mounted on the bottom side of the fixing seat 21. The reducer of the wheel hub motor 300 penetrates through the fixing seat 21. The fan 40 can form an air flow through the reducer, so as to air cool and dissipate heat for the wheel hub motor 300.

[0046] In one embodiment of the embodiment, please refer to Figure 1 and Figure 3The base 10 is provided with a containing cavity 101. One end of the connecting rod 22 is connected with the fixing seat 21, and the other end of the connecting rod 22 extends into the containing cavity 101 and is connected with the connecting seat 31. Specifically, the connecting seat 31 and the counterweight structure 32 in the load simulation device 30 are located in the containing cavity 101. The top end of the connecting rod 22 is located outside the containing cavity 101 and is connected and fixed with the bottom side of the fixing seat 21. The bottom end of the connecting rod 22 is located in the containing cavity 101 and is connected and fixed with the top side of the connecting seat 31. It can be understood that the hub motor 300 may vibrate when performing the aging test, so that the counterweight structure 32 is displaced and falls off from the connecting seat 31. The connecting seat 31 and the counterweight structure 32 are arranged in the containing cavity 101, so that the risk of the counterweight structure 32 accidentally injuring the worker is reduced, and the test safety is improved.

[0047] In an embodiment of this embodiment, referring to Figure 2 and Figure 3 The base 10 is provided with a guide structure 11, the guide structure 11 is provided with a guide hole 111, and the connecting rod 22 is in sliding fit with the guide hole 111. In this way, the connecting rod 22 can slide relative to the base 10, and the movement precision is relatively high.

[0048] In this embodiment, the number of the guide structure 11 and the connecting rod 22 is multiple, multiple connecting rods 22 are respectively in sliding fit with the guide hole 111 of the corresponding guide structure 11, so as to further improve the movement precision, and the counterweight structure 32 can apply the gravity to the fixing seat 21 and the hub motor 300 through the multiple connecting rods 22, which is beneficial to improve the stability of the test.

[0049] In this embodiment, the guide structure 11 includes a first guide block 112 and a second guide block 113, the first guide block 112 and the second guide block 113 are arranged along the vertical direction, and the first guide block 112 is located on the top side of the second guide block 113. The first guide block 112 and the second guide block 113 are both provided with the guide hole 111. In this way, the connecting rod 22 can stably slide relative to the base 10, which is beneficial to further improve the stability of the test.

[0050] In this embodiment, the connecting rod 22 is sleeved with a limiting ring 221, and the limiting ring 221 is used for abutting against the top side of the first guide block 112 to limit the connecting rod 22 from driving the fixing seat 21 to descend relative to the base 10, thereby reducing the risk of falling to the bottom.

[0051] In an embodiment of this embodiment, referring to Figures 3 to 5 , Figure 5 is Figure 4A cross-sectional view of the load simulation device 30 is shown. The counterweight structure 32 includes multiple counterweight blocks 321, which are stacked vertically on the top side of the connecting seat 31. This arrangement allows the multiple counterweight blocks 321 to stably transfer gravity to the tire.

[0052] In this embodiment, the connecting seat 31 has a bearing surface 311, which is perpendicular to the vertical direction. Multiple counterweights 321 are stacked on the bearing surface 311, and the stacking direction of the multiple counterweights 321 is vertical, so that the gravity of the multiple counterweights 321 can be fully applied to the hub motor 300 through the connecting seat 31, the connecting rod 22 and the fixed seat 21.

[0053] In other embodiments, the number of counterweights 321 may be one, or multiple counterweights 321 may be arranged horizontally on the top side of the connecting seat 31.

[0054] In one embodiment of this implementation, please refer to Figure 6 , Figure 6 This is a cross-sectional view of the load simulation device 30 according to another embodiment of the present invention. The motor mounting assembly 100 includes a light emitter 51, a counterweight 321 with a first detection hole 322, and a connecting seat 31 with a second detection hole 312. When multiple counterweights 321 are placed in a preset position on the connecting seat 31, the multiple first detection holes 322 and second detection holes 312 are sequentially connected to form a light channel, through which the light emitted by the light emitter 51 can pass. With this configuration, the light emitter 51 can detect whether multiple counterweights 321 are placed in the preset position on the connecting seat 31, so as to ensure that the counterweights 321 do not deviate from the center of the connecting seat 31, causing the hub motor 300 under test to wobble and affecting the test results.

[0055] In this embodiment, the first test hole is located at the center of the counterweight 321, the second test hole is located at the center of the connecting seat 31, and the light emitter 51 is located on the top side of the multiple counterweights 321. The light emitter 51 is aligned with the second test hole. When the light emitted by the light emitter 51 can pass downward through the light channel, it can be determined that the multiple counterweights 321 are placed in the preset position and the multiple counterweights 321 are placed at the center of the connecting seat 31.

[0056] In other embodiments, please refer to Figure 7 , Figure 7 This is a cross-sectional view of the load simulation device 30 under another embodiment of the present invention. The light emitter 51 can also be set on the bottom side of the connecting seat 31. The light emitter 51 emits upward light. When the light can pass upward through the light channel, it can be determined that the multiple counterweights 321 are placed in the preset position and the multiple counterweights 321 are placed in the center of the connecting seat 31.

[0057] In one embodiment of the embodiment, refer to Figure 8 , Figure 8 is a cross-sectional structure schematic diagram of the load simulation device 30 under another embodiment of the utility model embodiment. The motor mounting assembly 100 includes a signal transmitter 52 and a signal receiver 53, and the signal transmitter 52 and the signal receiver 53 are respectively located on both sides of the multiple counterweight blocks 321 in the stacking direction, and the counterweight block 321 is provided with a third detection hole 323. When the multiple counterweight blocks 321 are placed in the preset position of the connecting seat 31, the multiple third detection holes 323 are sequentially communicated to form a signal channel, and the signal transmitted by the signal transmitter 52 can pass through the signal channel and reach the signal receiver 53. In this way, the type of the signal transmitter 52 can be detected by receiving the signal by the signal receiver 53 to determine whether the multiple counterweight blocks 321 are placed in the preset position of the connecting seat 31, so as to ensure that the counterweight block 321 does not deviate from the center of the connecting seat 31, so that the hub motor 300 to be tested is not yawed, and the test result is affected.

[0058] In the embodiment, the signal transmitter 52 is located on the top side of the multiple counterweight blocks 321, and the signal receiver 53 is arranged in the groove formed in the center position of the bearing surface 311 of the connecting seat 31. The third test hole is arranged in the center position of the counterweight block 321. When the signal transmitted by the signal transmitter 52 can pass through the signal channel downward, the signal can be received by the signal receiver 53, that is, it can be judged that the multiple counterweight blocks 321 are placed in the preset position, and the multiple counterweight blocks 321 are placed in the center of the connecting seat 31. In other embodiments, the signal transmitter 52 can also be arranged on the connecting seat 31, and the signal receiver 53 is arranged on the top side of the multiple counterweight blocks 321.

[0059] In the embodiment, the signal transmitter 52 is configured as an infrared transmitter, and the signal receiver 53 is configured as an infrared receiver, so as to detect and judge whether the multiple counterweight blocks 321 are located in the center position of the connecting seat 31 through infrared light. In other embodiments, the signal transmitter 52 and the signal receiver 53 can also detect and judge through magnetic field signals.

[0060] In one embodiment of the embodiment, refer to Figure 9 , Figure 9 is a cross-sectional structure schematic diagram of the load simulation device 30 under another embodiment of the utility model embodiment. The connecting seat 31 is provided with a mounting frame 313, and the multiple counterweight blocks 321 are stacked in the mounting frame 313, and the mounting frame 313 can abut against the side surface of the multiple counterweight blocks 321 to limit the multiple counterweight blocks 321 from leaving the mounting frame 313.

[0061] In one embodiment of the embodiment, refer to Figure 10 , Figure 10is a sectional structure schematic view of the load simulation device 30 in another embodiment of the utility model embodiment. The counterweight 321 is provided with mounting holes 324, the connecting seat 31 is provided with limiting posts 314, the limiting posts 314 pass through the mounting holes 324 in turn to limit the movement of the counterweight 321 along the horizontal plane relative to the connecting seat 31. In this way, the positioning and installation of the counterweight 321 can be facilitated, and it can be ensured that the counterweight 321 does not deviate from the center of the connecting seat 31, so that the hub motor 300 to be tested is not inclined, and the test result is affected.

[0062] In the embodiment, the mounting holes 324 are arranged at the center of the counterweight 321, and the limiting posts 314 are arranged at the center of the connecting seat 31. When the counterweight 321 is placed on the connecting seat 31, the limiting posts 314 can pass through the mounting holes 324 in turn, so that the installation of the counterweight 321 is completed, and the installation method is simple.

[0063] In one embodiment of the embodiment, please refer to Figure 3 The motor mounting assembly 100 includes a damping structure (not shown) arranged on the base 10 and connected with the mounting frame 20 and / or the connecting seat 31. The damping structure is used to absorb the vibration generated during the test of the hub motor 300. Specifically, the damping structure can be constructed as a liquid damper, an air damper, an electromagnetic damper, etc. The damping structure can also be constructed as a spring, a reed, etc. which can provide elastic force. It can be understood that the damping structure can absorb the vibration generated during the test of the hub motor 300, so as to simulate the damping driving condition of the suspension and improve the reliability of the test.

[0064] The resistance simulation device 200 of the test equipment 1000 provided by the embodiment of the utility model is described below.

[0065] Please refer to Figure 2The resistance simulation device 200 comprises a ground simulation assembly 210, a brake 220 and a fan 230. The ground simulation assembly 210 comprises a first pulley 2101, a second pulley 2102 and a synchronous belt 2103. The base 10 is provided with a first side plate 14 and a second side plate 15 which are oppositely spaced. The first pulley 2101 and the second pulley 2102 are both arranged between the first side plate 14 and the second side plate 15, and the two ends of the first pulley 2101 are rotatably connected with the first side plate 14 and the second side plate 15 respectively, and the two ends of the second pulley 2102 are rotatably connected with the first side plate 14 and the second side plate 15 respectively. The synchronous belt 2103 is sleeved on the first pulley 2101 and the second pulley 2102 to move synchronously with the first pulley 2101 and the second pulley 2102. The synchronous belt 2103 is used for supporting the hub motor 300 to simulate the ground test. The brake 220 is connected with the first pulley 2101 to apply a braking torque to the first pulley 2101 to simulate the required walking resistance and improve the reliability of the test.

[0066] In the embodiment, the brake 220 is connected with the first pulley 2101 and hinders the rotation of the first pulley 2101 by the form of magnetic force. When it is not required to provide friction resistance, the brake 220 can cut off the magnetic force. In other embodiments, the brake 220 abuts against the end face of the first pulley 2101 to provide friction resistance when the first pulley 2101 rotates. When it is not required to provide friction resistance, the brake 220 is separated from the end face of the first pulley 2101. In other embodiments, the number of the brake 220 is two, and the two brakes 220 are connected with the first pulley 2101 and the second pulley 2102 respectively to provide resistance to the first pulley 2101 and the second pulley 2102 respectively, so that the first pulley 2101 and the second pulley 2102 are uniformly stressed, which is beneficial to the smooth movement of the synchronous belt 2103.

[0067] In the embodiment, the ground simulation assembly 210 comprises a plurality of protrusions 2104 arranged on the surface of the synchronous belt 2103 and spaced along the movement direction of the synchronous belt 2103. The protrusions 2104 can collide with the hub motor 300 to simulate bumps, thereby further improving the reliability of the test.

[0068] In the embodiment, please refer to Figure 3 A part of the plurality of guide structures 11 is fixed on the first side plate 14 by screws, and the other part is fixed on the second side plate 15 by screws, so as to realize the installation of the guide structure 11 and the base 10.

[0069] The utility model embodiment has been explained in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiment, still can make various changes in the knowledge range of the ordinary skill of the art person who possesses under the premise of not departing from the utility model tenet. Besides, the embodiment and the feature in the embodiment of the utility model can be combined mutually under the condition of not conflicting.

Claims

1. A test apparatus, characterized by, The test device comprises a base, a resistance simulation device arranged on the base and used to contact a tire with a hub motor to be tested so that the tire is subjected to resistance generated by the resistance simulation device when rotating, a mounting frame movably arranged on the base and located above the resistance simulation device and used to mount the tire, and a load simulation device comprising a connecting seat and a plurality of weight blocks mounted on the connecting seat, the connecting seat being connected with the mounting frame so that the tire rotates relative to the resistance simulation device under the action of gravity of the plurality of weight blocks. The mounting frame comprises a fixing seat used to mount the tire and a connecting rod in sliding connection with the base, the connecting rod connecting the fixing seat and the connecting seat. The base is provided with a receiving cavity, one end of the connecting rod is connected with the fixing seat, and the other end of the connecting rod extends into the receiving cavity and is connected with the connecting seat. The base is provided with a guide structure provided with a guide hole, and the connecting rod is in sliding fit with the guide hole. The plurality of weight blocks are arranged in a vertical direction and stacked on a top side of the connecting seat.

2. The test apparatus of claim 1, wherein, The test device comprises a light emitter, the weight blocks are provided with first detection holes, and the connecting seat is provided with second detection holes.

3. The test apparatus of claim 2, wherein, When the plurality of weight blocks are placed in a preset position of the connecting seat, the first detection holes and the second detection holes are sequentially communicated to form a light channel, and light emitted by the light emitter can pass through the light channel.

4. The test apparatus of claim 2, wherein, The test device comprises a signal emitter and a signal receiver, the signal emitter and the signal receiver are located on two sides of the plurality of weight blocks in a stacking direction, and the weight blocks are provided with third detection holes.

5. The test apparatus of claim 1, wherein, When the plurality of weight blocks are placed in a preset position of the connecting seat, the third detection holes are sequentially communicated to form a signal channel, and a signal emitted by the signal emitter can pass through the signal channel and reach the signal receiver.

6. The test apparatus of claim 5, wherein, The connecting seat is provided with a mounting frame, the plurality of weight blocks are stacked in the mounting frame, and the mounting frame can abut against side surfaces of the plurality of weight blocks to limit the plurality of weight blocks from leaving the mounting frame. The weight blocks are provided with mounting holes, the connecting seat is provided with limiting columns, and the limiting columns sequentially pass through the mounting holes to limit the plurality of weight blocks from moving along a horizontal plane relative to the connecting seat.

7. The test apparatus of claim 5, wherein, The test device comprises a damping structure arranged on the base and connected with the mounting frame and / or the connecting seat, and the damping structure is used to absorb vibration generated in the process of testing the hub motor. ​ 8. The test apparatus of claim 5, wherein, ​ 9. The test apparatus of claim 5, wherein, ​ 10. The test apparatus of claim 1, wherein, ​

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