Indoor tire slippery performance testing method

A technology of wet skid performance and test method, which is applied in the direction of automobile tire test, vehicle test, machine/structural component test, etc. problems, to achieve the effect of improving test efficiency, reducing test costs, and reducing experimental cycle and cost

Inactive Publication Date: 2019-08-23
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This test method not only has a long test cycle and high cost, but also has a single and fixed working condition, making it difficult to do detailed data accumulation and data analysis, and obviously cannot meet the needs of a large number of test research.

Method used

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  • Indoor tire slippery performance testing method
  • Indoor tire slippery performance testing method
  • Indoor tire slippery performance testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, such as figure 1 with figure 2 As shown, the experimental device applied to the tire wet skid performance test is divided into upper and lower layers, the upper layer is a tire chamber, and the lower layer is a drum chamber with a drum testing machine.

[0028] The drum testing machine includes a drum 2 axially mounted on a bearing 1 . During the experiment, the tire 8 and the drum 2 were in a vertical structure, and the central plane of the drum and the tire 8 coincided and were all perpendicular to the ground.

[0029] Drum 2 is a welded steel structure and needs to meet dynamic balance requirements and meet relevant ISO standards, with a diameter of 3m and an outer surface width of 650mm. Bearing 1 is a grease-lubricated roller bearing, and the outer surface of the drum is machined to ensure a smooth surface and precise dimensions.

[0030] On the circumferential outer surface of the drum 2 are inlaid 30 sector blocks 3 made of aluminum alloy and coate...

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Abstract

The invention discloses an indoor tire slippery performance testing method; based on an indoor rotary drum experimental device, an outdoor certification test is changed into an indoor machine tool test, so that the domestic and abroad blank can be expected to be directly filled, the testing efficiency is remarkably improved and the detection cost is lowered, and powerful support is provided for systematic research of the slippery performance of the tire. The test method is based on a rotary drum experiment machine, and water is sprayed to the surface of a drum wheel when the drum wheel rotates, so that an experiment test for the slippery performance of the tire is realized. According to the method, the existing testing equipment is creatively utilized, and an indoor rotating drum capable of simulating various pavement conditions is designed and applied, and a rotary drum surface humidification and water spraying device is additionally arranged so as to establish a novel slippery performance test method based on the rotary drum experiment machine

Description

technical field [0001] The invention relates to a device and a method for comprehensively testing wet slip performance based on simulating various road surface drum test machines, belonging to the fields of rubber machinery and industrial automation. Background technique [0002] At present, rubber tires used in aviation, road traffic and other fields need to be tested and tested on various items before they are put into use in the factory, such as experimental items such as wear, rolling resistance and wet skid performance. [0003] The friction between the tire and the ground and the transmission of force provide the various forces and moments required for the movement of the car. The friction between the tire and the ground will be significantly reduced on the road with water medium, and the wet skid resistance of the tire is very important to the handling stability and driving safety of the car. Therefore, the wet skid resistance of tires is an important index to evalua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/02
CPCG01M17/022
Inventor 尹海山马连湘李绍明
Owner QINGDAO UNIV OF SCI & TECH
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