System and method for testing all-weather tyre tread-road surface frictional characteristic

A tire tread and friction characteristics technology, applied in the field of tire tribology research, can solve problems such as unrealized automation, rapid heat generation, and influence on the accuracy of measurement results, so as to improve repeatability and accuracy and reduce impact

Inactive Publication Date: 2012-02-22
JILIN UNIV
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AI Technical Summary

Problems solved by technology

The development of these devices has greatly advanced the theory of friction, but some features of these instruments make it difficult to study the friction characteristics of tires:
[0004] (1) Due to the limitation of the structure, the speed range is very narrow (mostly low speed, less than 1m/s);
[0005] (

Method used

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  • System and method for testing all-weather tyre tread-road surface frictional characteristic
  • System and method for testing all-weather tyre tread-road surface frictional characteristic
  • System and method for testing all-weather tyre tread-road surface frictional characteristic

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Embodiment Construction

[0039] The technical scheme of the present invention will be further introduced below in conjunction with the accompanying drawings:

[0040] Such as figure 1 As shown, the all-weather tire tread-road friction characteristic test system of the present invention includes: console 1, hydraulic source 2, speed regulating motor 3, rotating disc 4, pressure disc 5, hydraulic loading cylinder 6, vertical pressure sensor 7. Tire interview block 8, environmental chamber 9, air duct 10, environmental control unit 11, speed sensor 12, main frame 13, horizontal tension and compression sensor 14, friction road surface 15.

[0041] Among them, the console 1 is respectively connected to the control speed regulating motor 3, the hydraulic loading cylinder 6, and the environmental control unit 11 through a data cable;

[0042] The hydraulic source 2 is connected to the hydraulic loading cylinder 6 through a hydraulic oil pipe to provide hydraulic power for it;

[0043] The speed-regulating motor 3 re...

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Abstract

The invention discloses a system and a method for testing an all-weather tyre tread-road surface frictional characteristic. The test system comprises a console, a speed adjusting motor, a rotary disk, a pressure disk, a hydraulic loading cylinder, a vertical pressure sensor, a tyre tread test block, an environmental chamber, an environment control unit, a horizontal pulling and pressing sensor, a frictional road surface and the like; with the adoption of the system, the friction coefficient measurement between the all-weather rubber tyre tread and road surface covering the change ranges of use working conditions (including various different contact pressures, ambient temperature and humidity, slip velocity and road surface condition) of an automobile tyre can be realized, and an effective technological means can be provided for obtaining a curve of friction coefficient-slip velocity of rubber materials. Combined with the disclosed test system, a test method with short-time contact measurement is adopted in the invention to greatly reduce the influence on the libratory result due to rubber abrasion and temperature rising in the rubber friction coefficient test, and the repeatability and accuracy of the libratory result are remarkably improved.

Description

Technical field [0001] The invention belongs to the field of tire tribology research, and specifically relates to an all-weather tire tread-road surface friction characteristic test system and method, which can provide effective test methods and test methods for the friction and wear properties of tire tread rubber materials. At the same time, it can provide a platform for measuring the tire-road friction characteristics at different speeds. Background technique [0002] As the main component of tires, rubber has special friction characteristics and does not comply with Coulomb's law of friction. The mechanical properties of rubber tires largely depend on the friction properties of rubber (especially in some extreme conditions). The theoretical research on rubber friction is still immature. Therefore, the testing and research of rubber friction is very important for the research of tire mechanical properties. [0003] In order to study the friction characteristics of rubber, peo...

Claims

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Application Information

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IPC IPC(8): G01N19/02
Inventor 郭孔辉庄晔
Owner JILIN UNIV
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