Testing device for electric power steering gear

Abstract

The utility model discloses an electric power steering gear testing device which comprises a testing platform, a left-end load electric telescopic cylinder, a right-end load electric telescopic cylinder and a motor installation support are arranged on the testing platform, a servo driving motor is arranged at the top of the motor installation support, and a transmission shaft is longitudinally arranged at the output end of the servo driving motor. A mounting table plate is arranged on the lower portion of the motor mounting support, a longitudinally-arranged output end connector is arranged on the lower portion of the mounting table plate, and a triangular supporting rotary disc is arranged at the tail end of the bottom of the output end connector and connected with a left-end load electric telescopic cylinder through a left-end double-ball-head pull rod. And the triangular supporting turntable is connected with a right-end load electric telescopic cylinder through a right-end double-ball-head pull rod. The electric power steering gear testing device can simulate the whole vehicle installation mode of the all-terrain vehicle to the greatest extent, and can verify the performance use condition and the service life of the electric steering column.

Description

Technical Field

[0001] The utility model relates to a beach vehicle steering test device, more specifically, to an electric power steering device test device. Background Art

[0002] Most passenger cars use a steering wheel, where the steering wheel is connected to an electric steering column, which is then connected to a rack and pinion with an intermediate drive shaft as a fulcrum. However, all-terrain ATVs still use handlebar-style steering, where the handlebars are connected to the electric steering column, which is directly connected to the tie rod with a triangular plate as a fulcrum. This has the advantage of enabling quick steering in complex road conditions, but the disadvantage is that it requires a large input torque. To better verify the performance of the electric steering column, steering tests are required. However, existing methods rely on manual labor and are quite labor-intensive. Utility Model Content

[0003] Based on this, it is necessary to provide an electric power steering test device to address the above technical problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An electric power steering test device, characterized in that the electric power steering test device comprises a test platform, wherein the test platform is provided with a left-end load electric telescopic cylinder, a right-end load electric telescopic cylinder and a motor mounting bracket, and the motor mounting bracket is located between the left-end load electric telescopic cylinder and the right-end load electric telescopic cylinder.

[0006] A servo drive motor is provided on the top of the motor mounting bracket, a longitudinally arranged transmission shaft is provided on the output end of the servo drive motor, a mounting platform is provided at the bottom of the motor mounting bracket, a longitudinally arranged output end connector is provided at the bottom of the mounting platform, a triangular support turntable is provided at the bottom end of the output end connector, the triangular support turntable is connected to the left end load electric telescopic cylinder through the left end double ball head pull rod, and the triangular support turntable is connected to the right end load electric telescopic cylinder through the right end double ball head pull rod.

[0007] As a preferred embodiment of the present invention, the triangular support turntable and the left-end load electric telescopic cylinder are rotatably connected to the left-end double-ball head pull rod, and the triangular support turntable and the right-end load electric telescopic cylinder are rotatably connected to the right-end double-ball head pull rod.

[0008] As a preferred embodiment of the present invention, the mounting platform is arranged horizontally.

[0009] As a preferred embodiment of the present invention, the triangular support turntable is arranged horizontally.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The utility model provides an electric power steering test device, which can simulate the installation mode of a beach buggy to the greatest extent, simulate the rapid reversing and high-torque reversing of the vehicle under different road conditions, and verify the performance, use and service life of the electric steering column through durability testing, and can verify the strength of the product, so as to promptly and effectively improve the shortcomings of the product, maintain market share, and better serve users. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the solutions in the present invention, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a schematic structural diagram of the electric power steering test device of the present utility model;

[0014] The markings in the figure are as follows: 1. Electric telescopic cylinder for load at the left end; 10. Mounting table; 2. Electric telescopic cylinder for load at the right end; 3. Double ball-end pull rod at the left end; 4. Double ball-end pull rod at the right end; 5. Triangular support turntable; 6. Output end connector; 8. Drive shaft; 9. Servo drive motor; K. Motor mounting bracket; S. Test platform. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] like Figure 1 As shown, the electric power steering test device includes a test platform S, on which a left-end load electric telescopic cylinder 1, a right-end load electric telescopic cylinder 2 and a motor mounting bracket K are provided. The motor mounting bracket K is located between the left-end load electric telescopic cylinder 1 and the right-end load electric telescopic cylinder 2.

[0017] A servo drive motor 9 is provided at the top of the motor mounting bracket K, and a longitudinally arranged transmission shaft 8 is provided at the output end of the servo drive motor 9. A horizontally arranged mounting platform 10 is provided at the lower part of the motor mounting bracket K, and a longitudinally arranged output end connector 6 is provided at the lower part of the mounting platform 10. A horizontally arranged triangular support turntable 5 is provided at the bottom end of the output end connector 6. The triangular support turntable 5 is connected to the left-end load electric telescopic cylinder 1 through the left-end double ball head pull rod 3, and the triangular support turntable 5 is connected to the right-end load electric telescopic cylinder 2 through the right-end double ball head pull rod 4.

[0018] The triangular support turntable 5 and the left end load electric telescopic cylinder 1 are both rotatably connected to the left end double ball head pull rod 3, and the triangular support turntable 5 and the right end load electric telescopic cylinder 2 are both rotatably connected to the right end double ball head pull rod 4.

[0019] The working mode of the electric power steering test device is described below.

[0020] The electric steering column 7 is fixedly mounted on the mounting plate 10 , and the input end is connected to the servo drive motor 9 via a transmission shaft 8 and is locked with bolts.

[0021] Then, the output end connector 6 is directly connected to the triangular support turntable 5, and is connected to the left end load electric telescopic cylinder 1 through the left end double ball head pull rod 3, and is connected to the right end load electric telescopic cylinder 2 through the right end double ball head pull rod 4.

[0022] It should be noted that the left-end double-ball tie rod 3 and the right-end double-ball tie rod 4 are both double-ball tie rods.

[0023] Before conducting the test, set the load electric cylinder to the rated output load, set the servo drive motor 9 to the rotation speed and rotation angle, and check that all connection parts are locked before conducting the durability test.

[0024] This electric power steering test device simulates an ATV scenario. For example, the center distance of the rocker arm is designed to be 65cm, the push-pull force of the electric load cylinder is 2000N, and the load is 130NM. Actual loading requires observing the input torque. The theoretical load is deducted from the input torque, and the final load can be close to 100NM. The input speed is controlled at 30 (r / min), and the rotation angle is controlled within ±50°.

[0025] The electric power steering test device can simulate the installation mode of a beach buggy to the greatest extent, and simulate the vehicle's rapid switching and high-torque switching under different road conditions. After the durability test, it can verify the performance, usage and service life of the electric steering column, and can verify the strength of the product. It can improve the product's deficiencies in a timely and effective manner to maintain market share and better serve users.

[0026] Obviously, the embodiments described above are only part of the embodiments of the present application, rather than all the embodiments. The drawings provide preferred embodiments of the present application, but do not limit the patent scope of the present application.

Claims

1. An electric power steering test device, characterized in that: The electric power steering test device comprises a test platform (S), on which a left-end load electric telescopic cylinder (1), a right-end load electric telescopic cylinder (2) and a motor mounting bracket (K) are provided, wherein the motor mounting bracket (K) is located between the left-end load electric telescopic cylinder (1) and the right-end load electric telescopic cylinder (2). A servo drive motor (9) is provided on the top of the motor mounting bracket (K), a longitudinally arranged transmission shaft (8) is provided on the output end of the servo drive motor (9), a mounting platform (10) is provided at the bottom of the motor mounting bracket (K), a longitudinally arranged output end connector (6) is provided at the bottom of the mounting platform (10), a triangular support turntable (5) is provided at the bottom end of the output end connector (6), the triangular support turntable (5) is connected to the left end load electric telescopic cylinder (1) through the left end double ball head pull rod (3), and the triangular support turntable (5) is connected to the right end load electric telescopic cylinder (2) through the right end double ball head pull rod (4).

2. The electric power steering test device according to claim 1, characterized in that: The triangular support turntable (5) and the left-end load electric telescopic cylinder (1) are both rotatably connected to the left-end double-ball head pull rod (3), and the triangular support turntable (5) and the right-end load electric telescopic cylinder (2) are both rotatably connected to the right-end double-ball head pull rod (4).

3. The electric power steering test device according to claim 1, characterized in that: The mounting plate (10) is arranged horizontally.

4. The electric power steering test device according to claim 1, characterized in that: The triangular support turntable (5) is arranged horizontally.

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