Meridian aircraft tire capable of reducing interface stress, strain and themogenesis and improving bead durability

A technology for aviation tires and interfacial stress, which is applied to tire parts, reinforcing layers of pneumatic tires, wheel types, etc., can solve problems such as not meeting airworthiness standards, and achieve the effect of improving bead durability

Active Publication Date: 2013-04-03
中国化工集团曙光橡胶工业研究设计院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These methods have a better effect on improving the fatigue resistance of aviation tire beads, but they stil

Method used

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  • Meridian aircraft tire capable of reducing interface stress, strain and themogenesis and improving bead durability
  • Meridian aircraft tire capable of reducing interface stress, strain and themogenesis and improving bead durability

Examples

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with drawings and embodiments.

[0011] exist figure 2 In the prior art example shown, the radial aviation tire is composed of tread rubber, belt layer, carcass ply, a pair of bead rings, a layer of stress buffer rubber, etc., and the carcass ply 3A passes from the crown to the sidewall And wrap the bead ring 4 from the inside to the outside; the carcass ply 3B passes through the sidewall from the crown and wraps the bead ring 4 from the outside to the inside; the carcass ply 3B is provided with a circumferential belt layer 2; the belt layer Tread rubber 1 is arranged on 2; stress buffer rubber 5 is arranged on the outer side of carcass ply 3B. The Shore hardness of the stress buffer glue 5 is 65 degrees, and the thickness is 6 mm.

[0012] exist figure 1 In the shown embodiment of the radial aviation tire of the present invention, the radial aviation tire is composed of a tread rubber, a belt laye...

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Abstract

The invention discloses a meridian aircraft tire capable of reducing interface stress, strain and themogenesis and improving bead durability. The tire is characterized in that two layers of stress buffer rubbers with different rigidities and thicknesses are arranged at a bead part between the outer side of a carcass ply and sidewall rubbers. The improved meridian aircraft tire can reduce interface stress, strain and themogenesis between the carcass at the bead part and the rubbers at the outer side, and can improve the bead durability under the rigorous conditions; According to tests, the bead durability is improved by more than 80%; and the dynamic performance of the tire can meet the requirements of airworthiness standard (GJB683A).

Description

technical field [0001] The invention relates to an aircraft tire, especially a radial aircraft tire capable of reducing interface stress, strain and heat generation and improving bead durability under harsh conditions. Background technique [0002] Under severe dynamic service conditions, due to the low bending stiffness of the sidewall and the large deformation of the bead part of the radial aviation tire, it is easy to cause delamination between the carcass cord at the bead part or between the bead reinforcement layer and the outer rubber layer, causing aviation The fatigue resistance and safety performance of tires cannot meet the requirements of airworthiness standards. At present, the methods for reducing the strain, stress and heat generation of the bead include: (1) adjusting the height of the carcass turnup; (2) setting the bead reinforcement layer; (3) placing the bead between the carcass and the sidewall Set high elasticity, low heat generation rubber. These meth...

Claims

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Application Information

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IPC IPC(8): B64C25/36B60C9/02
Inventor 韦进明关伟平高香丽傅云翠
Owner 中国化工集团曙光橡胶工业研究设计院有限公司
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