Radial tire capable of resisting transverse slip wear of tire

Abstract

The invention provides a radial tire capable of resisting transverse slip wear of a tire. The radial tire comprises a tire body and a tire tread coating the outermost periphery of the tire body in a radial direction. The tire tread comprises a tire crown and tire shoulders. The tire crown contour of the tread is sequentially divided into a first section of crown arc and a second section of crown arc on the section of the meridian of the tire from the intersection point of the equatorial plane of the tire and the contour of the tread to the starting part of the tire shoulder. The outer diameterR1 of the first section of crown arc and the outer diameter R2 of the second section of crown arc have a relationship: R1/R2 is larger than or equal to 1.2 and is less than or equal to 1.6; the arc length L1 of the first section of crown arc and the arc length L2 of the first section of crown arc have a relationship: L1/L2 is larger than or equal to 0.8 and is less than or equal to 1.8; and the fall h of the tire shoulder on the meridian section of the tire and the tread width TDW have a relationship: h/TDW is larger than or equal to 0.02 and is less than or equal to 0.035. According to the radial tire capable of resisting transverse sliding abrasion of the tire, the effective contact area between the tread and the road surface is increased, and the transverse rigidity of the tread is improved; and thus, the tread is not easy to transversely slide when being stressed by a transverse force, so that the transverse abrasion is reduced.

Description

technical field [0001] The invention relates to the technical field of tires, in particular to a radial tire resistant to tire lateral sliding wear. Background technique [0002] The wear of the tire is caused by the wear of the tread. The wear of the tread is usually caused by the friction between the tread and the road surface under the circumferential and lateral forces of the tire, so that the surface of the tread rubber is subjected to mechanical stress, and rubber molecular chains and crosslink bonds occur. Fracture breaks, forcing the rubber out of the tread. During the rolling process, the tire will be subject to dynamically changing lateral force due to the non-straight driving of the vehicle (such as turning, avoiding, and uneven road surface), which will cause lateral slip between the tread and the road surface, resulting in lateral wear. [0003] To improve the wear life of the tire, generally increase the wear volume of the tire (increase the groove depth, wide...

AI Technical Summary

Problems solved by technology

During the rolling process of the tire, due to the non-linear driving of the vehicle (such as turning, avoiding, and uneven road surface), the dynamic lateral force will cause lateral slip between the tread and the road surface, resulting in lateral wear

[0003] To improve the wear life of the tire, generally increase the wear volume of the tire (increase the groove depth, widen the driving surface) to improve the wear of the tire. The negative effects brought about by this are: 1. The weight of the tire increases, the cost of the tire increases and the additional allocation is occupied 2. The increase of the groove depth or the width of the driving surface will increase the rolling resistance of the tire, and the fuel economy will decrease; 3. Due to the increase of the wear volume, the heat dissipation will decrease, and the tire durability will decrease, resulting in tire failure rate increases, which in turn leads to a reduction in the overall service life of the tire

Images