Steering angle fixing device of steering wheel

Abstract

The utility model relates to the technical field of vehicle and tire outdoor testing, in particular to a steering wheel steering angle fixing device, which comprises a steering wheel sensor and a steering wheel, and the steering wheel is rotatably connected with the steering wheel sensor through a rotating shaft. A fixing mechanism is arranged on the rotating disc sensor, the fixing mechanism comprises a base and at least one gear block movably arranged on the base, limiting blocks matched with the gear blocks in number are arranged on the side, opposite to the fixing mechanism, of the steering disc, and the gear blocks can limit movement of the limiting blocks. The position of the gear block is adjusted according to the rotation angle of the steering wheel, a double-gear-block mode is adopted, the steering wheel is rapidly rotated, the limiting block at the bottom of the steering wheel can be clamped in the self-locking mechanism on the gear block, accurate fixing of the steering wheel is achieved, the test accuracy is guaranteed, the angle step input test efficiency is improved, and the test efficiency is improved. The test cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of outdoor testing of vehicles and tires, in particular to a device for fixing the steering angle of a steering wheel. Background Art

[0002] In the conventional dynamics tests of tire OE, the center zone handling stability, angle step input and steady-state rotation test items are crucial to evaluate the performance of the tire and the handling stability of the vehicle. These tests not only require the tire to show excellent performance under various driving conditions, but also put forward strict requirements on the vehicle's control system, especially the steering system.

[0003] The requirements for the angle step input test in GB / T 6323 Automobile Handling Stability Test Method are particularly strict. The test requires that the steering wheel jump time is no more than 0.2 seconds or the jump speed is no less than 200° / second. Such high requirements pose a great challenge to the steering wheel input rate and accuracy in the test. In actual operation, even experienced test drivers find it difficult to quickly and accurately turn the steering wheel to the predetermined angle in a short period of time while avoiding the occurrence of corner rebound.

[0004] At present, although there are high-precision equipment such as steering robots on the market that can accurately control the input angle of the steering wheel, the high prices and subsequent maintenance costs make these devices not suitable for all testing occasions. Utility Model Content

[0005] In order to solve the deficiencies in the prior art, the utility model provides a steering wheel steering angle fixing device.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: a steering wheel steering angle fixing device, comprising a steering wheel sensor and a steering wheel, the steering wheel being rotatably connected to the steering wheel sensor via a rotating shaft; a fixing mechanism is arranged on the steering wheel sensor, the fixing mechanism comprising a base and at least one shift block movably arranged on the base, a limit block matching the number of the shift blocks is arranged on the side of the steering wheel opposite to the fixing mechanism, and the shift block can limit the movement of the limit block.

[0007] Furthermore, an annular groove is provided on the base, and the shift block moves in the annular groove.

[0008] Furthermore, a scale plate is provided on the surface of the steering wheel sensor, and a positioning arrow is provided on one side of the gear block, and the positioning arrow is aligned with the scale plate.

[0009] Furthermore, the number of the gear blocks is two.

[0010] Furthermore, two opposite sides of the shift block are provided with self-locking mechanisms, and the self-locking mechanisms can lock the limit block.

[0011] Furthermore, the self-locking mechanism includes a return spring arranged on the shift block, the other end of the return spring is connected to a self-locking button, support arms are arranged on both sides of the self-locking button, and the ends of the support arms are connected to control arms.

[0012] Furthermore, a plurality of base fixing bolts are arranged in the annular groove, and the base fixing bolts fix the base and the steering wheel sensor together.

[0013] Furthermore, the shift block is provided with a shift block fixing bolt, and the shift block fixing bolt fixes the shift block to the base.

[0014] The beneficial effects achieved by the utility model are:

[0015] 1. The utility model is simple to install and easy to operate. The position of the shift block can be adjusted according to the rotation angle of the steering wheel. The dual-shift block mode is adopted to quickly rotate the steering wheel. The limit block at the bottom of the steering wheel can be stuck in the self-locking mechanism on the shift block to achieve accurate fixation of the steering wheel, avoiding the steering wheel rotation angle exceeding the angle required for the experiment. At the same time, it also prevents the experimental error caused by the rebound of the steering wheel after the steering wheel reaches the preset angle, thereby ensuring the accuracy of the test, improving the efficiency of the angle step input test, and reducing the test cost.

[0016] 2. The utility model is provided with a scale plate on the steering wheel sensor, and a positioning angle head is provided on one side of the gear block. The cooperation between the positioning arrow and the scale plate can realize the precise control of the steering wheel angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 The overall structure of the fixed mechanism Figure 1 ;

[0019] Figure 3 The overall structure of the fixed mechanism Figure 2 ;

[0020] Figure 4 It is a schematic diagram of the overall structure of the self-locking mechanism.

[0021] Explanation of marks in the figure: 1. Steering wheel sensor; 2. Dial; 3. Fixing mechanism; 4. Steering wheel; 5. Rotating shaft; 6. Limit block; 301. Base; 302. Base fixing bolt; 303. Shift block; 304. Shift block fixing bolt; 305. Annular groove; 306. Positioning arrow; 307. Self-locking mechanism; 3071. Self-locking button; 3072. Return spring; 3073. Support arm; 3074. Control arm. DETAILED DESCRIPTION

[0022] In order to better understand the purpose, structure and function of the present invention, a steering wheel steering angle fixing device of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0023] like Figures 1 to 4 As shown, a device for fixing a steering wheel steering angle includes a steering wheel sensor 1, a rotating shaft 5 is connected to the steering wheel sensor 1, and a steering wheel 4 is arranged at the other end of the rotating shaft 5. A fixing mechanism 3 is arranged on the steering wheel sensor 1, and a limiting block 6 is arranged on the side of the steering wheel 4 opposite to the fixing mechanism 3. The fixing mechanism 3 can limit the movement of the limiting block 6 to ensure that the steering wheel 4 moves to the required angle.

[0024] The fixing mechanism 3 includes a base 301 and two shift blocks 303 movably arranged on the base 301. An annular groove 305 is arranged at the connection between the base 301 and the shift block 303. The shift block 303 can make circular motion in the annular groove 305. A number of base fixing bolts 302 are evenly arranged in the annular groove 305. The base fixing bolts 302 fix the base 301 on the steering wheel sensor 1. A shift block fixing bolt 304 is arranged on the top of the shift block 303. By tightening the shift block fixing bolt 304, the shift block 303 can be fixed at any position in the annular groove 305.

[0025] The steering wheel sensor 1 is provided with a dial 2, which is arranged in the middle of the base 301. The dial 2 is an angle dial, and the minimum scale value is 1°. A positioning arrow 306 is arranged on the side of the gear block 303 aligned with the dial 2, and the positioning arrow 306 is located below one side of the gear block 303, so as to facilitate the positioning arrow 306 to align with the indication on the dial 2.

[0026] The shift block 303 is an I-shaped structure as a whole, and self-locking mechanisms 307 are provided on the opposite sides of the shift block 303. The opening direction of the self-locking mechanism 307 is the same as the moving direction of the limit block 6, and the opening size of the self-locking mechanism 307 matches the size of the limit block 6.

[0027] The self-locking mechanism 307 includes a return spring 3072 arranged on the gear block 303, one end of the return spring 3072 is arranged in the groove of the gear block 303, and the other end extends out of the groove of the gear block 303 and is connected to a self-locking button 3071, support arms 3073 are arranged on both sides of the self-locking button 3071, there is a certain angle between the support arms 3073 and the self-locking button 3071, and the ends of the support arms 3073 are connected to control arms 3074, when the limit block 6 enters the self-locking mechanism 307 in the gear block 303, the limit block 6 hits the self-locking button 3071, the self-locking button 3071 compresses the return spring 3072, the support arms 3073 on both sides of the self-locking button 3071 are horizontal with the self-locking button 3071, and the control arms 3074 on both sides move with the self-locking button 3071 to move toward the middle to clamp the limit block 6 to prevent the steering wheel 4 from rebounding.

[0028] Before the test, the size of the steering wheel 4 angle is determined by the sinusoidal amplification method or the steady-state circle method, the gear block 303 is moved according to the determined size of the steering wheel 4 angle, the position of the gear block 303 is determined by the coordination between the positioning arrow 306 and the dial 2, and the gear block 303 is fixed in the annular groove 305 using the gear block fixing bolt 304.

[0029] During the test, the test driver quickly rotates the steering wheel 4 to a preset angle. When the steering wheel 4 reaches the preset angle, the limit block 6 just enters the self-locking mechanism 307 in the gear block 303, triggering the self-locking button 3071 in the self-locking mechanism 307. The control arm 3074 clamps the limit block 6 to prevent experimental errors caused by shaking and rebounding of the steering wheel 4, thereby ensuring the accuracy of the test.

[0030] 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. A device for fixing the steering angle of a steering wheel, characterized in that: The invention comprises a steering wheel sensor (1) and a steering wheel (4), wherein the steering wheel (4) is rotatably connected to the steering wheel sensor (1) via a rotating shaft (5); a fixing mechanism (3) is arranged on the steering wheel sensor (1), wherein the fixing mechanism (3) comprises a base (301) and at least one shift block (303) movably arranged on the base (301); a side of the steering wheel (4) opposite to the fixing mechanism (3) is provided with a number of limit blocks (6) matching the number of the shift blocks (303); and the shift blocks (303) are capable of limiting the movement of the limit blocks (6).

2. A device for fixing the steering angle of a steering wheel according to claim 1, characterized in that: The base (301) is provided with an annular groove (305), and the shift block (303) moves in the annular groove (305).

3. The device for fixing the steering angle of a steering wheel according to claim 1, characterized in that: The surface of the steering wheel sensor (1) is provided with a scale plate (2), and one side of the gear block (303) is provided with a positioning arrow (306), and the positioning arrow (306) is aligned with the scale plate (2).

4. The device for fixing the steering angle of a steering wheel according to claim 1, characterized in that: The number of the gear blocks (303) is two.

5. The device for fixing the steering angle of a steering wheel according to claim 1, characterized in that: The shift block (303) is provided with self-locking mechanisms (307) on both opposite sides, and the self-locking mechanisms (307) are capable of locking the limit block (6).

6. A device for fixing the steering angle of a steering wheel according to claim 5, characterized in that: The self-locking mechanism (307) comprises a return spring (3072) arranged on the shift block (303); the other end of the return spring (3072) is connected to a self-locking button (3071); support arms (3073) are arranged on both sides of the self-locking button (3071); and the ends of the support arms (3073) are connected to control arms (3074).

7. The device for fixing the steering angle of a steering wheel according to claim 2, characterized in that: A plurality of base fixing bolts (302) are arranged in the annular groove (305), and the base fixing bolts (302) fix the base (301) and the steering wheel sensor (1) together.

8. The device for fixing the steering angle of a steering wheel according to claim 2, characterized in that: The shift block (303) is provided with a shift block fixing bolt (304), and the shift block fixing bolt (304) fixes the shift block (303) on the base (301).

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