A preparation method of an all-steel radial tire reinforced with a steel wire-wrapped composite part

Abstract

The invention relates to an all-steel radial tire adopting a steel wire cloth-wrapped composite part for reinforcing a tire bead and a preparation method of the all-steel radial tire. The tire comprises a crown, a tire shoulder, a carcass ply layer, an inside liner layer, a belt ply layer and a tire bead, wherein the tire bead comprises a bead ring, a bead filler and abrasion resistant rubber, the bead ring is reversely wrapped by the carcass ply layer of the tire, a U-shaped steel wire cloth-wrapped composite part with a structure capable of wrapping the bead ring completely is arranged outside the carcass ply layer, the inner side of the cloth-wrapped steel wire is attached between the carcass ply layer and the inside liner layer, the end point of the inner side is slightly lower than the reversely-wrapped end point of the carcass ply layer, the outer side of the cloth-wrapped steel wire is attached between the carcass ply layer and the abrasion resistant rubber, the reversely-wrapping edge of the outer side of the cloth-wrapped steel wire is encapsulated and a rubber piece is adhered inside, and the reversely-wrapping end point of the outer side of the cloth-wrapped steel wire is higher than the reversely-wrapping end point of the carcass ply. According to the all-steel radial tire, the transitivity between the tire bead and the flexible side wall is improved, the stress concentration phenomenon can be effectively prevented, the high load resisting strength of the tire bead is enhanced, the durability and the abrasion resistance of the tire bead are improved, the fault rate of the seam allowance part can be reduced, the potential safety hazard of the tire in the aspects of overloading, regional road surfaces and the like can be reduced, the service life of the tire is prolonged and the scheme is easy, economic and reliable.

Description

technical field [0001] The invention relates to the manufacturing field of all-steel radial tires, in particular to an all-steel radial tire with an adjusted bead wire wrapping structure and a preparation method thereof. Background technique [0002] Radial tires came out in the 1940s. Due to the excellent performance brought by its unique structure, after more than half a century of development, the tires have gradually become radial. Radial tires have experienced a long and tortuous development, and now they are becoming more and more flat, tubeless, high-speed, environmentally friendly and functional. With the development of the automobile industry, the performance requirements for tires are getting higher and higher. All-steel radial tires with advantages such as good handling performance, low rolling resistance, fuel saving and good durability and wear resistance have become the main force in the tire industry. However, during the running of all-steel radial tires, cra...

AI Technical Summary

Problems solved by technology

This strengthening method focuses on strengthening the weak parts of the rim, but on the one hand, because the outer end point of the rim steel wire cloth is lower than the end point of the carcass ply turn-up, the reinforcing effect of the steel ladle on the bead is weakened; The rubber strip is closed at the end, and there are problems such as difficult positioning and construction during the production process, which requires high technical requirements

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