Fatigue testing device for electric vehicle

Abstract

The utility model discloses an electric vehicle fatigue testing device which comprises an electric vehicle driving base, an electric vehicle is arranged on the top surface of the electric vehicle driving base, two supporting rods are fixedly connected to the left side wall and the right side wall of the electric vehicle driving base, and an electric vehicle brake control piece is fixed to the top end of each supporting rod. The electric vehicle brake control piece is respectively sleeved on a handle and a brake pinching handle of the electric vehicle; the electric vehicle driving base comprises a supporting frame and a square frame fixedly connected to the surface of the top of the supporting frame. According to the technical scheme, the electric vehicle driving base is arranged, the caterpillar band is driven in an electric mode, the caterpillar band is used for driving the front and rear wheels of the electric vehicle to roll, the electric vehicle is controlled by the electric vehicle braking control piece to brake, and the braking system of the electric vehicle is tested at different speeds. The fatigue of the braking system of the electric vehicle is tested by continuously braking and driving the electric vehicle.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle testing equipment technical field, concretely relates to a kind of electric vehicle fatigue testing device. BACKGROUND

[0002] The main test items of electric vehicle include IPX waterproof dustproof test, brake performance and braking distance test, simulated road driving test, maximum speed limit test and the like;In the brake performance and braking distance test item of electric vehicle, generally, electric vehicle is braked in actual site, which leads to the scene of test being larger and cost increasing, or the braking system of electric vehicle is disassembled for testing, but such test cannot simulate the brake fatigue data of electric vehicle. Therefore, the technical personnel in the field propose a kind of electric vehicle fatigue testing device. SUMMARY

[0003] The utility model discloses a kind of technical solutions of electric vehicle fatigue testing device, to solve the deficiency in the background art. And to solve the drawbacks and defects described in the background art, the technical solution has the following contents:

[0004] It includes electric vehicle drive base, the top surface of the electric vehicle drive base is provided with electric vehicle, the left and right side walls of the electric vehicle drive base are fixedly connected with two support rods, the top of the support rod is fixed with electric vehicle brake control part, and the electric vehicle brake control part is respectively sleeved on the handle and brake pinch of electric vehicle.

[0005] The electric vehicle drive base includes support frame, square frame fixedly connected to the top surface of support frame and a plurality of driven rollers rotationally connected in the inner cavity of square frame at equal distances, the inner cavity front end position of square frame is rotationally provided with driving roller, the right surface of square frame is provided with driving motor, and the output shaft of driving motor is drivingly connected with the right end of driving roller through chain and gear.

[0006] The electric vehicle brake control part includes two semicircular holding tubes held on the handle of electric vehicle, U-shaped frame fixed to the front end face of the semicircular holding tube on the front side, push plate movably arranged inside the U-shaped frame, servo cylinder fixedly connected to the upper and lower surfaces of the U-shaped frame at front section, and the upper and lower ends of the push plate are respectively connected with the extension shaft of the servo cylinder.

[0007] As a preferred scheme of the utility model: the last end driven roller and the driving roller are provided with a caterpillar belt, and the front wheel and the rear wheel of the electric vehicle are in contact with the upper surface of the caterpillar belt.

[0008] As a preferred scheme of the utility model: the output shaft end of the driving motor and the right end of the driving roller are both installed with sprocket through shaft coupling, and the sprocket is transmissionally provided with chain between.

[0009] As a preferred scheme of the utility model: the side surface of the support rod that is close to each other is fixedly connected with the left and right side wall front section of the square frame through screw, and the top end of the support rod is fixedly connected with the rear end surface of the semicircular pipe.

[0010] As a preferred scheme of the utility model: the side surface of the semicircular pipe that is far away from each other is fixedly connected with fixed block, and the front end surface of the fixed block of the front side is fixedly connected with the rear end of the U-shaped frame.

[0011] As a preferred scheme of the utility model: the upper and lower surfaces of the semicircular pipe are fixedly connected with lug, and the lug is all penetrated with bolt.

[0012] As a preferred scheme of the utility model: the inside of the U-shaped frame is provided with upper and lower through strip-shaped through hole, and the inside of the strip-shaped through hole is slidably provided with push block.

[0013] As a preferred scheme of the utility model: the upper and lower ends of the push plate are fixedly connected with the end of the push block that is close to each other, and the extension shaft of the servo cylinder is fixedly connected with the side of the push block that is far away from the semicircular pipe.

[0014] In the above technical scheme, the utility model provides technical effect and advantage:

[0015] In the technical scheme, the electric vehicle driving base is arranged, the crawler belt is driven by the electric mode, the front and rear wheels of the electric vehicle are rolled by the aid of the crawler belt, the electric vehicle is controlled to brake by the electric vehicle brake control member, and the electric vehicle brake system is tested at different speeds by continuously braking and driving the electric vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment or prior art, the drawings needed in the embodiment will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments in the utility model, and other drawings can be obtained by the drawings for the person skilled in the art.

[0017] Figure 1 It is the overall structure schematic view of fatigue test equipment;

[0018] Figure 2 It is the schematic view of electric vehicle driving base;

[0019] Figure 3 is a schematic view of an electric vehicle to be tested;

[0020] Figure 4 is a schematic view of an electric vehicle brake control.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, electric vehicle drive base; 11, support frame; 12, driven roller; 13, square frame; 14, track; 15, drive roller; 16, drive motor; 2, electric vehicle; 3, electric vehicle brake control; 31, semicircular pipe; 32, lug; 33, U-shaped frame; 34, strip-shaped through hole; 35, push block; 36, servo cylinder; 37, push plate; 38, fixed block; 4, support rod. DETAILED DESCRIPTION

[0023] In order to make the technical scheme and implementation of the utility model more clearly explained and described, the following describes several preferred embodiments for implementing the technical scheme of the utility model.

[0024] The following description is merely exemplary in nature and is not intended to limit the disclosure, application and uses. It should be understood that in all the drawings, the same or similar reference signs indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the disclosure, and do not necessarily show the specific dimensions and their proportions of the various embodiments of the disclosure. In particular parts of the specific drawings, the relevant details or structures of the embodiments of the disclosure may be exaggerated in a manner to illustrate the embodiments of the disclosure. The disclosures of the various publications, patents and published patent specifications cited herein are hereby incorporated by reference in their entirety, and the technical scheme of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model.

[0025] Embodiment, a better technical scheme of an electric vehicle fatigue test device, comprising the following:

[0026] It comprises an electric vehicle drive base 1, the top surface of the electric vehicle drive base 1 is provided with an electric vehicle 2, the left and right side walls of the electric vehicle drive base 1 are fixedly connected with two support rods 4, the top end of the support rod 4 is fixed with an electric vehicle brake control 3, the electric vehicle brake control 3 is respectively sleeved on the handle and brake pinch of the electric vehicle 2;

[0027] The electric vehicle driving base 1 comprises a support frame 11, a square frame 13 fixedly connected to the top surface of the support frame 11, a plurality of driven rollers 12 rotatably arranged at equal distances in the inner cavity of the square frame 13, a driving roller 15 rotatably arranged at the front end of the inner cavity of the square frame 13, a driving motor 16 mounted on the right side surface of the square frame 13, and a chain and gear transmission connection between the output shaft of the driving motor 16 and the right end of the driving roller 15.

[0028] The electric vehicle brake control 3 comprises two semicircular holding tubes 31 tightly holding the handle of the electric vehicle 2, a U-shaped frame 33 fixedly arranged at the front end surface of the front semicircular holding tube 31, a push plate 37 movably arranged in the U-shaped frame 33, a servo cylinder 36 fixedly connected to the front segment of the upper and lower surfaces of the U-shaped frame 33, and the upper and lower ends of the push plate 37 connected to the extension shaft of the servo cylinder 36.

[0029] A track 14 is arranged between the last driven roller 12 and the driving roller 15, the front wheel and the rear wheel of the electric vehicle 2 are in contact with the upper surface of the track 14, the output shaft of the driving motor 16 and the right end of the driving roller 15 are both provided with a chain wheel through a shaft coupling, a chain is arranged between the chain wheels in a transmission mode, the side surfaces of the support rods 4 close to each other are fixedly connected to the front segments of the left and right side walls of the square frame 13 through screws, and the top ends of the support rods 4 are fixedly connected to the rear end surfaces of the rear semicircular holding tubes 31.

[0030] The side surfaces of the semicircular holding tubes 31 away from each other are both fixedly connected to a fixed block 38, the front end surface of the front fixed block 38 is fixedly connected to the rear end of the U-shaped frame 33, the upper and lower surfaces of the semicircular holding tubes 31 are both fixedly connected to a protruding block 32, and the protruding blocks 32 are both penetrated by a bolt; a strip-shaped through hole 34 is arranged in the U-shaped frame 33, the push block 35 is slidably arranged in the strip-shaped through hole 34, the upper and lower ends of the push plate 37 are fixedly connected to the end of the push block 35 close to each other, and the extension shaft of the servo cylinder 36 is fixedly connected to the side of the push block 35 away from the semicircular holding tube 31.

[0031] According to the above-mentioned preferred technical scheme, the working process of the technical scheme is described.

[0032] The driving motor 16 drives the driving roller 15 to rotate, and drives the track 14 and the driven roller 12 to rotate, at this time, the front and rear wheels of the electric vehicle 2 placed on the track 14 begin to roll, and the rotation speed of the front and rear wheels of the electric vehicle 2 is controlled through the driving motor 16 and the track 14. Before this, the semicircular holding tubes 31 are tightly held on the handle of the electric vehicle 2, the electric vehicle 2 is supported and kept balanced by the supporting rod 4, then the push block 35 is pushed by the servo cylinder 36, the push plate 37 is forced to approach the brake pinch of the electric vehicle 2, the brake system of the electric vehicle 2 is made to work by pushing the brake pinch, and the fatigue degree data of the brake system of the electric vehicle 2 are obtained by continuously driving and braking the electric vehicle 2.

[0033] The above only describes certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. An electric vehicle fatigue testing apparatus comprising an electric vehicle drive base (1) characterised in that: The top surface of the electric car driving base (1) is provided with an electric car (2), the left and right side walls of the electric car driving base (1) are fixedly connected with two support rods (4), the top ends of the support rods (4) are fixedly connected with electric car brake control members (3), and the electric car brake control members (3) are sleeved on the handles and brake pinch handles of the electric car (2) respectively. The electric car driving base (1) comprises a support frame (11), a square frame (13) fixedly connected to the top surface of the support frame (11), and a plurality of driven rollers (12) rotationally connected to the inner cavity of the square frame (13) at equal distances, a driving roller (15) is rotationally arranged at the front end position of the inner cavity of the square frame (13), a driving motor (16) is mounted on the right surface of the square frame (13), and the output shaft of the driving motor (16) is in transmission connection with the right end of the driving roller (15) through a chain and a gear. The electric car brake control member (3) comprises two semicircular holding tubes (31) that hold the handle of the electric car (2), a U-shaped frame (33) fixed to the front end face of the semicircular holding tube (31) on the front side, a push plate (37) movably arranged inside the U-shaped frame (33), a servo cylinder (36) fixedly connected to the front segment of the upper and lower surfaces of the U-shaped frame (33), and the telescopic shafts of the servo cylinder (36) are connected to the upper and lower ends of the push plate (37) respectively.

2. The electric vehicle fatigue testing device of claim 1, wherein: A track (14) is arranged between the last end of the driven roller (12) and the driving roller (15), and the front wheel and the rear wheel of the electric car (2) are in contact with the upper surface of the track (14).

3. The electric vehicle fatigue testing apparatus of claim 1, wherein: The output shaft of the driving motor (16) and the right end of the driving roller (15) are both provided with a sprocket through a shaft coupling, and the sprockets are in transmission connection through a chain.

4. The electric vehicle fatigue testing apparatus of claim 1, wherein: The side surfaces of the support rods (4) that are close to each other are fixedly connected to the front segments of the left and right side walls of the square frame (13) through screws, and the top ends of the support rods (4) are fixedly connected to the rear end faces of the semicircular holding tubes (31) on the rear side.

5. The electric vehicle fatigue testing apparatus of claim 1, wherein: The side surfaces of the semicircular holding tubes (31) that are away from each other are both fixedly connected with fixing blocks (38), and the front end face of the fixing block (38) on the front side is fixedly connected with the rear end of the U-shaped frame (33).

6. The electric vehicle fatigue testing apparatus of claim 1, wherein: The upper and lower surfaces of the semicircular holding tubes (31) are both fixedly connected with protrusions (32), and the protrusions (32) are both penetrated by bolts.

7. The electric vehicle fatigue testing apparatus of claim 1, wherein: The inside of the U-shaped frame (33) is provided with an upper and lower through strip-shaped through hole (34), and the push block (35) is slidably arranged in the strip-shaped through hole (34).

8. The electric vehicle fatigue testing apparatus of claim 1, wherein: The upper and lower ends of the push plate (37) are fixedly connected to one end of the push block (35) that is close to the semicircular holding tube (31), and the telescopic shaft of the servo cylinder (36) is fixedly connected to one side of the push block (35) that is away from the semicircular holding tube (31).

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