The invention discloses an all-steel radial tire, and relates to the field of radial tires. The all-steel radial tire comprises a tire tread and four belt plies, wherein the four belt plies comprise afirst belt ply, a second belt ply, a third belt ply and a fourth belt ply, the first belt ply comprises a left section part, a middle section part and a right section part, the outer contour of the tire axial section of the tire tread is formed by sequentially and smoothly connecting n sections of tread arcs, n is larger than or equal to 6, the n sections of tread arcs are symmetrically distributed along the center point of the tire tread, the axial horizontal widths of the n sections of tread arcs are L1, L2, L3... Ln respectively, and the tread width of the tire tread is L. According to theinvention, the structure is simple, the tread contour and the belt ply structure are optimized, the modulus of the belted layer rubber material is increased, the thickness ratio of the tread to the shoulder is controlled, the end point shearing strain of the tire belted layer can be reduced, the tire grounding shape uniformity is ensured, the tire tread stress is reduced, and the tire durabilityis improved, so that the tire failure rate is reduced.
本发明公开了一种全钢子午线轮胎,涉及子午线轮胎领域,包括轮胎胎面和四层带束层,所述四层带束层包括第一带束层、第二带束层、第三带束层和第四带束层,所述第一带束层包括左段部、中段部和右段部,所述轮胎胎面的轮胎轴向断面外轮廓由n段胎面弧依次平滑连接形成,所述n≥6,所述n段胎面弧分别沿胎面中心点对称分布,所述n段胎面弧的轴向水平宽度分别为L1、L2、L3…Ln,所述轮胎胎面的胎面宽为L,本发明结构简单,优化了胎面轮廓及带束层结构,增加了带束层胶料的模量同时控制胎面与肩部厚度比,可以降低轮胎带束层端点剪应变,同时保证轮胎接地形状均匀,降低轮胎胎面应力,提升轮胎耐久性能,从而降低轮胎故障率。
All-steel radial tire
一种全钢子午线轮胎
2021-03-05
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |
Processing method of all-steel radial tire and all-steel radial tire
European Patent Office | 2020
|