Parallel double-steel-wire-coat tire bead structure for full-steel load radial tire
A radial tire, parallel type technology, applied in the field of all-steel truck radial tire parallel double steel wire wrapped bead structure, can solve the bending deformation of the carcass and steel wire wrapped cloth, insufficient overall rigidity of the bead part, and bead cracking To reduce the stress of the bead, increase the bearing capacity of the bead, and improve the rigidity of the inner side
Pending Publication Date: 2018-07-17
SHANDONG LINGLONG TIRE
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Problems solved by technology
Under the harsh conditions of harsh road conditions and severe overloading, the overall rigidity of the bead is insufficient, the deformation is large, and the carcass and the steel wire cloth are in direct contact. It is very easy to form stress concentration at the end point of the carcass and the steel wire cloth, and there will be problems such as ring voids, ring cracks and wire-drawn blasting.
Method used
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[0015] The present invention will be further described below in conjunction with accompanying drawing:
[0016] Such as figure 1 , figure 2 As shown, the all-steel truck radial tire parallel double steel wire wrapped bead structure includes a steel traveler 12 and a rubber core arranged on the upper part of the steel traveler 12. The surface of the rubber core located at the inner side of the bead structure is provided with a steel wire pack inside the bead. Cloth 6, bead inner steel wire wrapping cloth 6 is located on the inside of the bead structure. The surface is covered by the inner molding rubber 5. The carcass 3 extends downward from the inner side of the bead structure and is rewound outward to wrap the rubber core in turn in the bead structure. The surface in the inner direction, the bead inner wire cloth 6, the steel traveler 12 and the rubber core are located in the outer direction of the bead structure, the outer side of the carcass 3 is wrapped with the bead out...
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The invention discloses a parallel double-steel-wire-coat tire bead structure for a full-steel load radial tire. A tire bead inner side steel wire coat, inner side molding rubber and a rubber core form a first assembly, and the rigidity of the inner side of the tire bead is improved; meanwhile, the inner side molding rubber and the rubber core form coating-clamping protection for the inner side steel wire coat to prevent the inner side coat endpoints from cracking. A tire bead outer side steel wire coat, outer side molding rubber, a tire body and a rubber core form a second assembly, and the rigidity of the outer side of the tire bead is improved; besides, the tire bead outer side steel wire coat, the outer side molding rubber and the rubber core form coating-clamping protection for the outer side tire body endpoints to relieve the early-stage crack damage; meanwhile, the outer side molding rubber isolates the outer side steel wire coat from the outer side tire body to reduce the interlayer shear. Thus, the stress on the tire bead part is reduced, the bearing capacity of the tire bead is improved, and the service life is significantly prolonged.
Description
technical field [0001] The invention relates to the technical field of tire structures, in particular to a parallel double steel wire-wrapped bead structure of an all-steel load radial tire. Background technique [0002] The bead of the all-steel radial truck tire is a very critical part. It is the compound of various half-parts and skeleton material ends. It bears the internal pressure stress of the tire and the additional stress under the load. It requires strong support rigidity and strict production process. The bead reinforcement structure of the traditional truck radial tire has only one layer of bead reinforcement and steel wire cloth, and the carcass is directly bonded after the lamination is completed. Under the harsh conditions of harsh road conditions and severe overloading, the overall rigidity of the bead is insufficient, the deformation is large, and the carcass and the steel wire cloth are in direct contact. It is very easy to form stress concentration at th...
Claims
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IPC IPC(8): B60C15/04
CPCB60C15/04
Inventor 王锋隋海涛王彬腾李洪汛丁宁吕志磊史立芬
Owner SHANDONG LINGLONG TIRE