A kind of tread rubber wear test method

Abstract

The invention belongs to the technical field of rubber wear detection, and relates to a tread rubber wear test method, which realizes the completion of the tread rubber wear test under simulated conditions where experimental parameters such as load, rotational speed, and wear angle can be adjusted; specifically, it includes samples The manufacture and fixation of the grinding mechanism, the loading of the grinding mechanism, the rotation of the rubber wheel, the deflection of the rubber wheel, and the weighing and comparison of the sample particles, the adjustment of different loads can be realized through the control of the loading of the grinding mechanism. The control of the rotation of the rubber wheel can realize the adjustment of different speeds, and the control of the deflection of the rubber wheel can realize the adjustment of different wear angles; the method is simple to operate, easy to control the conditions, accurate in testing, and suitable for wide application.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of rubber wear detection and relates to a tread rubber wear test method, which realizes the completion of the tread rubber wear test under simulated conditions where experimental parameters such as load, rotational speed and wear angle can be adjusted. [0003] Background technique: [0004] The wear resistance of the tire tread is one of the important indicators to measure the service life of the tire, and it is also a must-check item for every tire factory. So far, the common test methods for rubber wear in the laboratory include Akron abrasion, DIN abrasion and Grassier abrasion and other experimental methods. , with a certain inclination angle to carry out rolling friction with the alumina grinding wheel; this method is mainly suitable for rubber materials with a Shore hardness of 55-80. Although the device involved is simple in structure and widely used, it is troublesome to prepare the sample an...

AI Technical Summary

Problems solved by technology

So far, the common test methods for rubber abrasion in the laboratory include Akron abrasion, DIN abrasion, and Grassier abrasion. , with a certain inclination angle for rolling friction with the alumina grinding wheel; this method is mainly suitable for rubber materials with a Shore hardness of 55-80. Although the device involved is simple in structure and widely used, it is troublesome to prepare the sample and relatively slippery The ratio is different for different rubbers, resulting in a certain impact on the wear results; the DIN wear test method is to press a cylindrical sample with a certain load on a rotating sandpaper roller, and the sample is placed on the roller Do lateral movement on the upper side, and measure the wear volume of the cylindrical sample after a certain stroke. In this test, both the load and the roughness of the sandpaper have a decisive influence on the wear volume. Therefore, it is necessary to regularly correct the load and replace the sandpaper. This test method has the required The sample is small, the test method is simple and easy to operate, and the data error is small, but the maintenance cost is high and the test conditions cannot be adjusted; the Grassili abrasion test method is to press the sample on a sandpaper disc rotating at a constant speed, and measure The volume wear of a certain stroke (or power). In this method, the volume wear of the sample increases with the increase of load, speed and temperature. The particle size of the sandpaper has a greater impact on the wear volume. The coarser the sandpaper particles, the greater the wear volume. Big

[0005] The above test methods all have the following defects: non-adjustable test conditions, many factors affecting the test, and insufficient accuracy of the test results. Therefore, after long-term painstaking research, the inventor has designed a kind of universal tread rubber wear test method, which can be used in the imitation of car tires. Under the running state of the tire, simulate the rolling resistance and the sliding friction of the tire when turning to test the wear resistance of the tread rubber

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