A motorcycle tyre footprint detection device and method

Abstract

The application relates to the field of tire detection, in particular to a motorcycle tire footprint detection device and method, which comprises: a wheel fixing assembly for fixing the wheel of a motorcycle; a pressure bearing platform, which is arranged towards the wheel fixing assembly, and is provided with a fulcrum, rotates around the fulcrum, changes the inclination angle, and makes the side of the pressure bearing platform towards the wheel fixing assembly contact the tire on the wheel; and a ground footprint detection system, which is arranged on the side of the pressure bearing platform towards the wheel fixing assembly, and is used for detecting the footprint of the contact position of the tire and the pressure bearing platform. The application has the advantages that the inclination angle of the pressure bearing platform is continuously changed, the contact position of the tire and the pressure bearing platform is changed, the footprint is detected by the ground footprint detection system, and thus the footprint of the motorcycle tire during steering is obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of tire detection, in particular to a motorcycle tire footprint detection device and method. BACKGROUND

[0002] The development of motorcycle tires has entered a stage of researching the safety and comfort of tires at high speeds and in turning situations, and preliminary research can be formed through tire footprint. Compared with cars with four or more wheels, when a motorcycle turns, the tire will be inclined at a certain angle, causing the tire ground contact position to change. The existing footprint detection device can only detect the footprint of the tire from the direction perpendicular to the radial direction of the tire, and cannot detect the footprint of the side of the tire, so it cannot be applied to the detection of motorcycle tire footprint. SUMMARY

[0003] To solve the above problems, the first object of the present application is to provide a motorcycle tire footprint detection device, which detects the footprint of the motorcycle tire when it is inclined by matching the surface of the motorcycle tire with a pressure bearing platform that can change the inclination angle.

[0004] To achieve the first object of the present application, the following technical solutions are adopted:

[0005] A motorcycle tire footprint detection device, comprising:

[0006] A wheel fixing assembly for fixing the wheels of a motorcycle;

[0007] A pressure bearing platform, which is arranged towards the wheel fixing assembly, and a fulcrum is arranged on the pressure bearing platform, the pressure bearing platform rotates around the fulcrum to change the inclination angle, so that the side of the pressure bearing platform facing the wheel fixing assembly is in contact with the tire on the wheel; and

[0008] A ground footprint detection system arranged on the side of the pressure bearing platform facing the wheel fixing assembly, for detecting the footprint of the contact position between the tire and the pressure bearing platform.

[0009] Preferably, a rotating connection assembly is arranged on the pressure bearing platform, which is the fulcrum, and the pressure bearing platform rotates around the rotating connection assembly.

[0010] Preferably, the rotating connection assembly comprises a first connecting block and a second connecting block connected by a rotating shaft, the first connecting block is fixedly connected with the pressure bearing platform, and the second connecting block is arranged on the rack of the device.

[0011] Preferably, the device further comprises a sliding rail assembly, and the second connecting block is slidingly arranged on the sliding rail assembly, so that when the pressure bearing platform rotates around the rotating shaft, the second connecting block slides on the sliding rail assembly, causing the fulcrum of the pressure bearing platform to displace.

[0012] As preferred, the pressure bearing platform is provided with an inclination angle adjusting assembly, which applies force to the pressure bearing platform to rotate it around the fulcrum.

[0013] As preferred, the inclination angle adjusting assembly comprises an adjusting rod, which is arranged to move along a straight line, one end of the adjusting rod is connected with the pressure bearing platform, and the straight line movement of the adjusting rod drives the pressure bearing platform to rotate around the fulcrum.

[0014] As preferred, the inclination angle adjusting assembly further comprises a screw elevator, the adjusting rod is arranged at the output end of the screw elevator; a connecting head is arranged between the adjusting rod and the pressure bearing platform, the adjusting rod is rotatably connected with the connecting head, and the pressure bearing platform is fixedly connected with the connecting head.

[0015] As preferred, the wheel fixing assembly is provided with a driving assembly, which is used to drive the wheel fixing assembly to move towards the pressure bearing platform.

[0016] The second object of the present application is to provide a motorcycle tire footprint detection method, which sequentially comprises the following steps:

[0017] The motorcycle wheel is installed on the wheel fixing assembly;

[0018] The inclination angle of the pressure bearing platform is adjusted so that the pressure bearing platform abuts against the tire;

[0019] The footprint detection system detects the footprint of the tire.

[0020] As preferred, when the inclination angle of the pressure bearing platform is adjusted, the adjusting rod moves linearly to drive one side of the pressure bearing platform to displace, so that the pressure bearing platform rotates around the rotating connecting assembly, thereby abutting against the tire;

[0021] The adjusting rod is continuously moved, and the footprint detection system detects the footprint of the tire at different inclination angles.

[0022] In summary, the present application has the advantage that by continuously changing the inclination angle of the pressure bearing platform, the contact position of the tire with the pressure bearing platform is changed, and the footprint detection system detects the footprint, thereby obtaining the footprint of the motorcycle tire when turning, which further improves the research on the footprint of the tire (especially the motorcycle tire), and has great reference significance for the research on the change of the tire footprint, the contour and pattern of the motorcycle, and the design of the construction. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a perspective view of a motorcycle tire footprint detection device.

[0024] Figure 2 It is Figure 1 It is a local enlarged view of A in the middle.

[0025] Figure 3 This is a side view of a motorcycle tire mark detection device.

[0026] Figure 4 This is a schematic diagram of the tire imprint obtained after being detected by the device of the present invention. Detailed Implementation

[0027] like Figure 1 As shown, a motorcycle tire mark detection device includes a frame 10. In this embodiment, the frame 10 is generally L-shaped, having a horizontal portion 11 and a vertical portion 12 that are perpendicular to each other. A flat pressure platform 20 is disposed above the horizontal portion 11. In the initial state, the pressure platform 20 is horizontally positioned. A rotating connecting assembly 30 is disposed on the side of the pressure platform 20 closest to the vertical portion 12. The pressure platform 20 rotates around the rotating connecting assembly 30 in the vertical plane, thereby changing the tilt angle of the pressure platform 20 (the angle between the pressure platform before and after rotation; in this embodiment, it is the angle between the pressure platform 20 and the horizontal plane). A tilt angle adjustment assembly 40 is disposed on the side of the pressure platform 20 away from the vertical portion 12. The tilt angle adjustment assembly 40 drives the right end of the pressure platform 20 to move in the vertical direction, causing the pressure platform 20 to rotate around the rotating connecting assembly 30. A wheel fixing assembly 50 is provided on the vertical part 12. The wheel fixing assembly 50 is used to fix the wheel of the motorcycle (it does not mean that the wheel cannot move at all, but that the wheel is mounted on the wheel fixing assembly 50). The axis of the wheel is set in the horizontal direction and perpendicular to the axis of rotation of the pressure platform 20. The pressure platform 20 faces the wheel fixing assembly 50. So when the pressure platform 20 rotates upward, the upper end surface of the pressure platform 20 will contact the lower surface of the tire (especially the position near the side of the tire), simulating the state when the motorcycle wheel is turning, and obtaining the tire's turning mark.

[0028] It should be noted that the pressure platform 20 can also be located on the upper part of the frame 10, that is, above the wheel fixing assembly 50. Rotating the pressure platform 20 downwards will also enable the detection of tire sidewall imprints. Furthermore, the pressure platform 20 does not necessarily need to be positioned in a horizontal plane. Its initial position can be changed, as long as it is directly opposite the wheel fixing assembly 50. For example, the pressure platform 20 can be positioned in a vertical plane, with the wheel fixing assembly 50 located to its left or right. When the pressure platform 20 rotates around its vertical axis, tire imprints can still be detected.

[0029] like Figure 2As shown, the rotating connecting assembly 30 comprises a first connecting block 31 and a second connecting block 32 which are connected by a rotating shaft, in the embodiment, the axis of the rotating shaft is arranged along the horizontal direction. The upper end of the first connecting block 31 is fixedly arranged on the pressure bearing platform 20, and the lower end of the second connecting block 32 is arranged on the horizontal part 11 of the frame 10, so that the first connecting block 31 and the second connecting block 32 can rotate around the rotating shaft, that is, the right end of the pressure bearing platform 20 can rotate around the rotating shaft.

[0030] Further, the horizontal part 11 of the frame 10 is provided with a sliding rail assembly 60, and the lower part of the rotating connecting assembly 30 is slidingly arranged on the sliding rail assembly 60. When the pressure bearing platform 20 rotates, the right end of the pressure bearing platform 20 will move along the sliding rail assembly 60 in the horizontal direction, so that the pressure bearing platform 20 can change the position in the horizontal direction within a certain range while changing the inclination angle, thereby changing the contact position of the tire with the pressure bearing platform 20, and better simulating the contact position of the motorcycle wheel with the ground when turning.

[0031] Specifically, the sliding rail assembly 60 comprises a sliding rail 61 fixedly arranged on the horizontal part 11 and a sliding block 62 slidingly arranged on the sliding rail 61, and the bottom of the second connecting block 32 is fixedly arranged on the sliding block 62, so that when the left end of the pressure bearing platform 20 moves upward, the right end of the pressure bearing platform 20 will slide along the sliding rail 61 to the left, so that the pressure bearing platform 20 as a whole moves to the left, changing the contact position of the tire with the pressure bearing platform 20.

[0032] As shown, Figure 1 The inclination angle adjusting assembly 40 comprises an adjusting rod 41 which is arranged to move up and down, and a connecting head 42 which is rotatably arranged on the upper part of the adjusting rod 41, and the connecting head 42 is fixedly arranged on the left end of the pressure bearing platform 20, so that when the adjusting rod 42 moves up and down, it will drive the left end of the pressure bearing platform 20 to move up and down in the vertical direction, so that the pressure bearing platform 20 rotates around the rotating connecting assembly 30, that is, the inclination angle of the pressure bearing platform 20 can be adjusted.

[0033] Specifically, the adjusting rod 41 is arranged on a screw elevator 43, and the adjusting rod 41 is driven to move in the vertical direction by the screw elevator 43. In order to facilitate operation, a hand wheel 44 is arranged on one side of the screw elevator 43, and when in use, rotating the hand wheel 44 can drive the adjusting rod 41 to move up and down. By controlling the angle through which the hand wheel 44 is turned, the inclination angle of the pressure bearing platform 20 can be accurately controlled. Generally, the inclination angle of the pressure bearing platform 20 continuously changes within 0-30° to simulate the inclination angle when the motorcycle normally turns.

[0034] As shown, Figure 1As shown, the wheel fixing assembly 50 is provided with a driving assembly, which is used to move the wheel fixing assembly 50 up and down (for example, through a cylinder, a motor, etc.), so as to adjust the position of the wheel on the wheel fixing assembly 50, so that the wheel is close to or away from the pressure platform 20, and the wheel can exert force on the pressure platform 20, so as to detect other performances of the tire, such as lateral load, radial load, force analysis, displacement analysis, etc.

[0035] As shown in Figure 1 and 3 In this embodiment, a support seat 70 is further arranged on the horizontal part 11, which is located below the pressure platform 20. When the pressure platform 20 is in a horizontal position, the bottom of the pressure platform 20 is connected to the support seat 70, so that the pressure platform 20 is in a horizontal position.

[0036] A ground mark detection system (not shown) is further arranged on the pressure platform 20, so as to collect the mark information of the tire when the tire contacts the pressure platform 20. In addition, the device is further provided with a radial and lateral loading device, a positioning device, a force measuring system, and a displacement measuring system, which are used to measure other parameters of the tire, and more comprehensively analyze the situation of the tire when turning.

[0037] The use process of the device is as follows:

[0038] Firstly, the motorcycle wheel is installed on the wheel fixing assembly 50, and then the longitudinal position of the wheel fixing assembly 50 is adjusted, so that the wheel is in a suitable position for subsequent contact with the pressure platform 20.

[0039] Then, the hand wheel 44 is rotated to drive the screw elevator 43 to move, so that the adjusting rod 41 moves upward, and the left end of the pressure platform 20 is driven by the connecting head 42 to move upward, so that the pressure platform 20 rotates around the rotating shaft, and at the same time, the right end of the pressure platform 20 moves leftward along the slide rail 61, so as to change the inclination angle of the pressure platform 20, so that the pressure platform 20 contacts the tire.

[0040] Then, the ground mark detection system detects the mark of the tire.

[0041] Continue to rotate the hand wheel 44, and continuously adjust the inclination angle of the pressure platform 20 within 0-30°, and in the process, the ground mark detection system detects the mark of the tire.

[0042] In the above process, the wheel fixing assembly 50 can also be adjusted up and down, so that the pressure between the tire and the pressure platform 20 changes, and the stress condition of the tire when the motorcycle turns is better simulated.

[0043] The foregoing is a description of the embodiments of the present application. The above description of disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein but will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method of detecting a motorcycle tyre footprint, characterised in that, The device used in the method comprises: A wheel fixing assembly (50) is used for fixing the wheel of the motorcycle; a pressure bearing platform (20) is arranged towards the wheel fixing assembly (50), and a fulcrum is arranged on the pressure bearing platform (20), the pressure bearing platform (20) rotates around the fulcrum to change the inclination angle, so that the side of the pressure bearing platform (20) towards the wheel fixing assembly (50) is in contact with the tire on the wheel; and a ground print detection system is arranged on the side of the pressure bearing platform (20) towards the wheel fixing assembly (50), and is used for detecting the print of the contact position of the tire and the pressure bearing platform (20); An inclination angle adjusting assembly (40) is arranged on the pressure bearing platform (20), and the inclination angle adjusting assembly (40) applies force to the pressure bearing platform (20) to make it rotate around the fulcrum; the inclination angle adjusting assembly (40) comprises an adjusting rod (41) which is arranged to move in a straight line, one end of the adjusting rod (41) is connected with the pressure bearing platform (20), and the straight line movement of the adjusting rod (41) drives the pressure bearing platform (20) to rotate around the fulcrum; The method sequentially comprises the following steps: installing the motorcycle wheel on the wheel fixing assembly (50); adjusting the inclination angle of the pressure bearing platform (20) to continuously change within 0-30° to simulate the inclination angle of the motorcycle during normal steering, so that the pressure bearing platform (20) abuts against the tire; and the ground print detection system detects the print of the tire; When the inclination angle of the pressure bearing platform (20) is adjusted, the adjusting rod (41) moves in a straight line to drive one side of the pressure bearing platform (20) to displace, so that the pressure bearing platform (20) rotates around the rotating connection assembly (30), thereby abutting the pressure bearing platform (20) against the tire; the adjusting rod (41) is continuously moved, and the ground print detection system detects the tire print at different inclination angles.

2. The method of claim 1, wherein, A rotating connection assembly (30) is arranged on the pressure bearing platform (20), and the rotating connection assembly (30) is the fulcrum, and the pressure bearing platform (20) rotates around the rotating connection assembly (30).

3. The method of claim 2, wherein, The rotating connection assembly (30) comprises a first connecting block (31) and a second connecting block (32) which are connected with each other through a rotating shaft, the first connecting block (31) is fixedly connected with the pressure bearing platform (20), and the second connecting block (32) is arranged on the rack of the device.

4. The method of claim 3, wherein, The device further comprises a sliding rail assembly (60), and the second connecting block (32) is slidingly arranged on the sliding rail assembly (60), so that the second connecting block (32) slides on the sliding rail assembly (60) while the pressure bearing platform (20) rotates around the rotating shaft, and the fulcrum of the pressure bearing platform (20) is displaced.

5. The method of claim 1, wherein, The inclination angle adjusting assembly (40) further comprises a screw elevator (43), and the adjusting rod (41) is arranged at the output end of the screw elevator (43); a connecting head (42) is arranged between the adjusting rod (41) and the pressure bearing platform (20), the adjusting rod (41) is rotationally connected with the connecting head (42), and the pressure bearing platform (20) is fixedly connected with the connecting head (42).

6. The method of claim 1, wherein, The wheel fixing assembly (50) is provided with a driving assembly, and the driving assembly is used for driving the wheel fixing assembly (50) to move towards the pressure-bearing platform (20).

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