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All-steel radial tire with zero degree undertread structure

A radial tire and belt layer technology, applied in the field of all-steel radial tire 0-degree belt structure adjustment, can solve the problems of decreased tire wear performance and sacrifice of tire service life, so as to reduce strain energy and reduce tire shoulder disease The effect of improving the durability of tires

Active Publication Date: 2009-08-12
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, improving shoulder defects by reducing tread heat generation is one of the measures. However, reducing tread heat generation often leads to reduced tire wear performance and sacrifices tire service life.

Method used

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  • All-steel radial tire with zero degree undertread structure
  • All-steel radial tire with zero degree undertread structure
  • All-steel radial tire with zero degree undertread structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Such as figure 2 The all-steel radial tire with 0-degree belt layer 4 structure shown, the tire includes a table portion 1, a sidewall portion 2, a bead portion and a carcass layer 3, and the outer side of the carcass layer 3 is 1# belt layer 6 in sequence , 2# belt layer 5 and 0 degree belt layer 4, the middle part of 0 degree belt layer 4 is 3# belt layer 7.

[0017] Belt cutting width adjustment: 1# belt layer 6 width is 165mm, 1# belt layer 6 edge wrapping film is adjusted to 30mm*1.0mm; 2# belt layer 5 width is 200mm, edge wrapping rubber width is adjusted to 240mm, The isolation film is adjusted to 30mm*1.5mm; the width of 3# belt layer 7 is 100mm.

[0018] 1# belt layer 6 is wider than 0 degree belt layer 4, and the level difference between 1# belt layer 6 and 0 degree belt layer 4 is 7.5mm. 2# belt layer 5 is wider than 0 degree belt layer 4, and the difference between 2# belt layer 5 and 0 degree belt layer 4 is 10mm.

[0019] The rest will be produced acco...

Embodiment 2

[0021] Such as figure 2 The all-steel radial tire shown has a 0-degree belt 4 structure. The tire includes a table portion, a sidewall portion, a bead portion, and a carcass layer. The outer sides of the carcass layer are 1# belt layer 6 and 2# belt Belt layer 5 and 0 degree belt layer 4, wherein: 1# belt layer 6 is wider than 0 degree belt layer 4, and the level difference between 1# belt layer 6 and 0 degree belt layer 4 is 6.5mm. 2# belt layer 5 is wider than 0 degree belt layer 4, and the difference between 2# belt layer 5 and 0 degree belt layer 4 is 11mm. Other technical characteristics are as shown in embodiment 1.

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Abstract

The invention relates to a structural design technology of an all-steel radial ply tire, in particular to the adjustment of the zero degree belt structure of the all-steel radial ply tire; the all-steel radial ply tire with zero degree belt structure comprises a tire face, a tire side, a tire ring and a cord ply; the exterior of the cord ply is sequentially 1# belt, 2# belt and zero degree belt; wherein, the 1# belt is wider than the zero degree belt; the grade difference between the 1# belt and the zero degree belt is at least 3mm. The invention breaks through the restrict of western design originator Pirelli SpA design conception on the zero degree belt structure, and provides an improved zero degree belt structure; namely, the zero degree belt is wider than the 1# belt; as the grade difference of the belt is increased, the stress is reasonably dispersed, in particular the shearing stress between ends of the 1#belt and 2# belt and the strain energy of the belt end region are reduced; the invention greatly improves the durability of the tire and reduces the shoulder vacancy defect of the tire.

Description

technical field [0001] The invention relates to the structural design technology of the all-steel radial tire, in particular to the adjustment of the 0-degree belt layer structure of the all-steel radial tire. Background technique [0002] With the upgrading of tire industry technology, all-steel radial tires have become the mainstream products in the tire industry. The main problems in the use of all-steel radial tires are the shoulder and bead problems, which are usually called "two-end point" problems and are worldwide. Difficult problems have become a sign that major tire companies at home and abroad are committed to solving and demonstrating their technological advancement. For example, improving shoulder defects by reducing tread heat generation is one of the measures. However, reducing tread heat generation often leads to a decrease in tire wear performance and sacrifices tire service life. [0003] Such as figure 1 As shown, the 0-degree belt structure design, as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/18B60C9/02
Inventor 尹海山
Owner ZHONGCE RUBBER GRP CO LTD
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