Electric automobile hub motor test bench

Abstract

The utility model discloses an electric automobile hub motor test bench, which comprises a rack body and a bench body, an electric automobile hub motor body and a clamping assembly are arranged in the middle of the upper part of the bench body, the clamping assembly comprises sleeves arranged at the two ends of the outer part of the electric automobile hub motor body, and the positions of the two sets of sleeves correspond to each other. Sliding grooves are annularly formed in the outer wall of the sleeve at equal intervals in a penetrating mode, triangular clamping plates are slidably installed on the inner walls of the sliding grooves, driving rings are slidably installed at the positions, located on the triangular clamping plates, of the outer wall of the sleeve, and telescopic air cylinders used for pushing and pulling the driving rings are fixedly installed on the two sides of the outer wall of the sleeve. By means of the clamping assembly, manual work can be replaced to automatically clamp a motor shaft of the electric automobile hub motor body, so that the electric automobile hub motor body is fixed, time and labor are saved in the operation process, and the working difficulty of workers is reduced; and through the adjusting assembly, a worker can conveniently and flexibly adjust the position of the sleeve, and follow-up clamping work can be conveniently carried out.

Description

Technical Field

[0001] The utility model belongs to the technical field of wheel hub motor performance testing, in particular to a wheel hub motor test bench for an electric vehicle. Background Art

[0002] The wheel hub motor is a motor designed by integrating the car's "power system, transmission system, and brake system". The working principle of the wheel hub motor is a permanent magnet synchronous motor. "Wheel side motor" and "wheel hub motor" refer to motors installed in different positions of the vehicle. Since the wheel hub motor directly transmits power to the wheels, the traditional transmission system, such as the clutch, transmission, drive shaft and differential, is eliminated, making the power transmission chain shorter, reducing energy loss, and improving transmission efficiency.

[0003] At present, the performance test of electric vehicle hub motor mainly includes collision test, noise test, durability test, sealing test and limit speed test under no-load and load conditions, and these test items are usually completed using a test bench. Among them, when testing the limit speed of the electric vehicle hub motor under no-load and load conditions, the staff usually manually clamps the motor shaft of the electric vehicle hub motor to be tested on the test bench, which increases the difficulty of the staff's work. For this reason, an electric vehicle hub motor test bench is provided. Utility Model Content

[0004] The utility model aims to provide an electric vehicle hub motor test bench to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: an electric vehicle hub motor test bench, comprising a frame body and a platform body, an electric vehicle hub motor body is arranged in the upper middle part of the platform body, and also comprises: a clamping assembly for clamping and fixing the motor shaft of the electric vehicle hub motor body, the clamping assembly comprises sleeves arranged at both ends of the outside of the electric vehicle hub motor body, the two groups of sleeves are in corresponding positions, the outer wall of the sleeve is annular and has slide grooves equidistantly penetrated, the inner wall of the slide groove is slidably mounted with a triangular clamping plate, the outer wall of the sleeve is located at the triangular clamping plate position and a driving ring is slidably mounted, telescopic cylinders for pushing and pulling the driving ring are fixedly mounted on both sides of the outer wall of the sleeve, the output end of the telescopic cylinder is connected and assembled with the outer end of the driving ring, a fixing plate is installed on the top of the outer end of the triangular clamping plate, a second guide rod is arranged on the inner wall of the fixing plate, the fixing plate and the second guide rod are slidably arranged, and the outer wall of the second guide rod is located between the fixing plate and the sleeve and is wound with a reset spring.

[0006] Preferably, the outer wall of the sleeve is annularly provided with fixing blocks at equal intervals, the outer wall of the fixing block is located at one end of the driving ring and a first guide rod is fixedly provided, the outer wall of the first guide rod is located between the fixing block and the driving ring and a fastening spring is wound around it, one end of the fastening spring is connected to the fixing block, and the other end of the fastening spring is connected to the driving ring.

[0007] Preferably, one end of the second guide rod is connected to the sleeve, and an anti-drop cap is fixedly provided at the middle of the other end of the second guide rod, one end of the reset spring is connected to the fixed plate, and the other end of the reset spring is connected to the sleeve, and guide ribs are provided at both ends of the outer wall of the triangular clamp, and the guide ribs are integrally formed with the triangular clamp.

[0008] Preferably, a pressure plate is elastically mounted on the inner wall of the triangular clamp through an elastic member, an anti-slip pad is provided on one end of the outer wall of the pressure plate away from the elastic member, and a rounded surface is provided on the outer end of the driving ring.

[0009] Preferably, it also includes an adjustment component for supporting and driving the sleeve, the adjustment component includes a guide rail arranged in the middle above the electric vehicle hub motor body, a bidirectional screw is rotatably installed inside the guide rail through a bearing, and a displacement arm is arranged on the outer wall of the bidirectional screw at each sleeve position.

[0010] Preferably, the two groups of displacement arms are engaged with the guide rails through threads, the displacement arms are connected to the sleeve, the outer end of the bidirectional screw is connected and assembled to the output end of the external drive motor through a coupling, and a support frame for supporting and fixing the guide rail is provided in the middle of the outer wall of the guide rail, one end of the support frame is connected to the guide rail, and the other end of the support frame is connected to the platform.

[0011] The utility model of an electric vehicle hub motor test bench has the following advantages:

[0012] 1. The utility model can replace manual work to automatically clamp the motor shaft of the electric vehicle hub motor body by setting a clamping component, so as to fix the electric vehicle hub motor body. This not only saves time and effort in the operation process, but also reduces the work difficulty of the staff and effectively improves the detection efficiency.

[0013] 2. The utility model provides an adjustment component, which makes it easy for the staff to flexibly adjust the position of the sleeve and facilitate the subsequent clamping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the plane structure of the utility model;

[0017] Figure 3 It is a side view of the local structure of the utility model;

[0018] Figure 4 It is a partial structural sectional view of the utility model.

[0019] Explanation of marks in the figure: 1. frame; 2. platform; 3. adjustment assembly; 301. guide rail; 302. support frame; 303. bidirectional screw; 304. displacement arm; 305. drive motor; 4. clamping assembly; 401. sleeve; 402. telescopic cylinder; 403. slide groove; 404. first guide rod; 405. guide rib; 406. triangular splint; 407. drive ring; 408. tightening spring; 409. fixing block; 410. fillet surface; 411. anti-slip pad; 412. pressure plate; 413. reset spring; 414. fixing plate; 415. anti-drop cap; 416. second guide rod; 417. elastic member; 5. electric vehicle hub motor body. DETAILED DESCRIPTION

[0020] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0025] In order to better understand the purpose, structure and function of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-4 As shown, an electric vehicle hub motor test bench of the utility model includes a frame body 1 and a platform body 2, an electric vehicle hub motor body 5 is arranged in the upper middle part of the platform body 2, and the equipment also includes: a clamping assembly 4 for clamping and fixing the motor shaft of the electric vehicle hub motor body 5, specifically, the clamping assembly 4 includes sleeves 401 arranged at both ends of the outside of the electric vehicle hub motor body 5, and the positions of the two groups of sleeves 401 correspond to each other. A brake universal wheel is installed at the bottom of the frame body 1 to facilitate the staff to move the equipment as a whole.

[0027] Specifically, the outer wall of the sleeve 401 is annular and has sliding grooves 403 at equal intervals. The inner wall of the sliding groove 403 is slidably installed with a triangular clamping plate 406 for applying pressure to the motor shaft of the electric vehicle hub motor body 5. The outer wall of the sleeve 401 is located at the position of the triangular clamping plate 406 and is slidably installed with a driving ring 407 for merging each triangular clamping plate 406. The outer end of the driving ring 407 is provided with a rounded surface 410. The outer wall of the sleeve 401 is fixedly installed with telescopic cylinders 402 for pushing and pulling the driving ring 407. The output end of the cylinder 402 is connected and assembled with the outer end of the driving ring 407. The outer wall of the sleeve 401 is installed with fixed blocks 409 in a ring shape at equal intervals. The outer wall of the fixed block 409 is located at one end of the driving ring 407 and a first guide rod 404 is fixedly provided for guiding the driving ring 407 during the sliding process. The outer wall of the first guide rod 404 is located between the fixed block 409 and the driving ring 407 and is wound with a fastening spring 408. One end of the fastening spring 408 is connected to the fixed block 409, and the other end of the fastening spring 408 is connected to the driving ring 407.

[0028] Furthermore, a fixing plate 414 is installed on the top of the outer end of the triangular splint 406, and a second guide rod 416 is arranged on the inner wall of the fixing plate 414, one end of the second guide rod 416 is connected to the sleeve 401, and an anti-dropping cap 415 is fixedly arranged in the middle of the other end of the second guide rod 416, the fixing plate 414 and the second guide rod 416 are slidably arranged, and a return spring 413 is wound around the outer wall of the second guide rod 416 between the fixing plate 414 and the sleeve 401, one end of the return spring 413 is connected to the fixing plate 414, and the other end of the return spring 413 is connected to the sleeve 401, and guide ribs 405 are arranged at both ends of the outer wall of the triangular splint 406, The guide ribs 405 and the triangular splint 406 are integrally formed, and the inner wall of the slide groove 403 is provided with guide grooves at the positions of each guide rib 405, which are used to cooperate with the guide ribs 405 to guide and stabilize the triangular splint 406 during the sliding process. The inner wall of the triangular splint 406 is elastically installed with a pressure plate 412 through an elastic member 417, which is used to apply secondary pressure to the motor shaft of the electric vehicle hub motor body 5 to improve the stability of the connection. The outer wall of the pressure plate 412 is provided with an anti-slip pad 411 at one end away from the elastic member 417, which is used to protect the outer surface of the motor shaft of the electric vehicle hub motor body 5 on the one hand, and to increase the friction of the connection on the other hand.

[0029] Furthermore, in order to facilitate the staff to adjust the position of the sleeve 401, the utility model is also provided with an adjustment component 3 for supporting and driving the sleeve 401. Specifically, the adjustment component 3 includes a guide rail 301 arranged in the middle above the electric vehicle hub motor body 5, and a bidirectional screw 303 is rotatably installed inside the guide rail 301 through a bearing. The outer wall of the bidirectional screw 303 is provided with a displacement arm 304 at each sleeve 401 position. Two groups of displacement arms 304 are both arranged to engage with the guide rail 301 through threads, and the displacement arm 304 is connected to the sleeve 401. The outer end of the bidirectional screw 303 is connected to the output end of the external drive motor 305 through a coupling. A support frame 302 for supporting and fixing the guide rail 301 is provided in the middle of the outer wall of the guide rail 301, one end of the support frame 302 is connected to the guide rail 301, and the other end of the support frame 302 is connected to the platform 2.

[0030] According to the above, the utility model can replace manual operation to automatically clamp the motor shaft of the electric vehicle hub motor body 5 by setting a clamping component 4, so as to fix the electric vehicle hub motor body 5, which not only saves time and effort in the operation process, but also reduces the work difficulty of the staff and effectively improves the detection efficiency; the utility model provides an adjustment component 3, which is convenient for the staff to flexibly adjust the position of the sleeve 401, and facilitates the subsequent clamping work.

[0031] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An electric vehicle hub motor test bench, comprising a frame (1) and a platform (2), wherein an electric vehicle hub motor body (5) is arranged in the upper middle part of the platform (2), and characterized in that: Also includes: A clamping assembly (4) for clamping and fixing a motor shaft of a wheel hub motor body (5) of an electric vehicle, the clamping assembly (4) comprising sleeves (401) arranged at two ends of the exterior of the wheel hub motor body (5) of the electric vehicle, two groups of sleeves (401) being located in corresponding positions, the outer wall of the sleeve (401) being provided with annular slide grooves (403) extending therethrough at equal intervals, the inner wall of the slide groove (403) being slidably mounted with a triangular clamping plate (406), the outer wall of the sleeve (401) being located at the position of the triangular clamping plate (406) being slidably mounted with a drive ring (407), the sleeve (401) being provided with a plurality of guide rings (401) and a plurality of guide rings ... ) are fixedly installed on both sides of the outer wall of the driving ring (407) with telescopic cylinders (402) for pushing and pulling the driving ring (407), the output end of the telescopic cylinder (402) is connected and assembled with the outer end of the driving ring (407), a fixing plate (414) is installed on the top of the outer end of the triangular clamp (406), a second guide rod (416) is arranged on the inner wall of the fixing plate (414), the fixing plate (414) and the second guide rod (416) are slidably arranged, and the outer wall of the second guide rod (416) is located between the fixing plate (414) and the sleeve (401) and is wound with a return spring (413).

2. The electric vehicle hub motor test bench according to claim 1, characterized in that: The outer wall of the sleeve (401) is annularly provided with fixing blocks (409) at equal intervals, the outer wall of the fixing block (409) is located at one end of the driving ring (407) and is fixedly provided with a first guide rod (404), the outer wall of the first guide rod (404) is located between the fixing block (409) and the driving ring (407) and is wound with a fastening spring (408), one end of the fastening spring (408) is connected to the fixing block (409), and the other end of the fastening spring (408) is connected to the driving ring (407).

3. The electric vehicle hub motor test bench according to claim 1, characterized in that: One end of the second guide rod (416) is connected to the sleeve (401), and an anti-drop cap (415) is fixedly provided at the middle of the other end of the second guide rod (416); one end of the reset spring (413) is connected to the fixed plate (414), and the other end of the reset spring (413) is connected to the sleeve (401); guide ribs (405) are provided at both ends of the outer wall of the triangular clamp (406); and the guide ribs (405) and the triangular clamp (406) are integrally formed.

4. The electric vehicle hub motor test bench according to claim 1, characterized in that: A pressure plate (412) is elastically mounted on the inner wall of the triangular clamp (406) via an elastic member (417); an anti-slip pad (411) is provided on the outer wall of the pressure plate (412) away from the elastic member (417); and a rounded surface (410) is provided on the outer end of the driving ring (407).

5. The electric vehicle hub motor test bench according to claim 1, characterized in that: The invention also comprises an adjustment assembly (3) for supporting and driving the sleeve (401), wherein the adjustment assembly (3) comprises a guide rail (301) arranged in the middle of the upper part of the electric vehicle hub motor body (5), a bidirectional screw rod (303) being rotatably mounted inside the guide rail (301) via a bearing, and a displacement arm (304) being arranged on the outer wall of the bidirectional screw rod (303) at the position of each sleeve (401).

6. The electric vehicle hub motor test bench according to claim 5, characterized in that: The two groups of displacement arms (304) are both engaged with the guide rail (301) through threads, the displacement arms (304) are connected to the sleeve (401), the outer end of the bidirectional screw (303) is connected and assembled with the output end of the external drive motor (305) through a coupling, and a support frame (302) for supporting and fixing the guide rail (301) is provided in the middle of the outer wall of the guide rail (301), one end of the support frame (302) is connected to the guide rail (301), and the other end of the support frame (302) is connected to the platform (2).

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