Method for judging bending of carcass cord of wide base radial tire

A technology of radial tires and carcass cords, applied in the field of simulation, to achieve high precision, solve bending problems, and wide application range

Active Publication Date: 2015-12-30
SHANDONG LINGLONG TIRE
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Problems solved by technology

The evaluation criteria for judging whether the carcass cords of w

Method used

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  • Method for judging bending of carcass cord of wide base radial tire
  • Method for judging bending of carcass cord of wide base radial tire
  • Method for judging bending of carcass cord of wide base radial tire

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0037] Taking the molding process of 435 / 50R19.5 all-steel heavy-duty wide-base radial tire as an example to illustrate the specific implementation steps, as follows figure 1 shown. The rated air pressure and rated load of this type of tire are 0.83MPa and 45kN respectively.

[0038] S1: Establishment of finite element model of tire components.

[0039] Wide-base radial tires mainly include main drum parts, auxiliary drum parts and apex parts. The main drum parts include sidewall rubber, wear-resistant rubber, film, inner liner, lower inner liner, reinforcing layer, carcass layer, and shoulder Pad rubber; auxiliary drum parts include No. 1 belt layer, No. 2 belt layer, No. 3 belt layer, No. 4 belt layer, and crown rubber; apex rubber parts include steel traveler, apex r...

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Abstract

The invention provides a method for judging the bending of a carcass cord of a wide base radial tire. The method is characterized in that a finite element analysis method is used for establishing a raw tire model of the tire, simulated analysis is carried out on the forming process of the wide base radial tire and a process of converting a raw tire of the tire into a finished tire by a mode of shaping inside a vulcanizing machine; positive and negative internal forces of the carcass cord at a crown of the finished tire are used as a method for judging whether the carcass cord is bent or not. According to the method disclosed by the invention, whether the carcass cord is bent or not is judged by using the positive and negative internal forces of the carcass cord of the finished tire after shaping is performed in the vulcanizing machine, so that the problem that the carcass cord is bent in a production process of the wide base radial tire is effectively solved, and theoretical guidance and technical support are laid for improving the properties of the wide base radial tire.

Description

technical field [0001] The invention belongs to the field of simulation, in particular to a method for judging the bending of carcass cords of wide-base radial tires. Background technique [0002] Wide-based single tire replaces ordinary tires and installs twin tires. It has the advantages of small tire and rim assembly, large load-bearing capacity, and small installation space. It has become the mainstream trend in the development of radial truck tires. However, the manufacturing process of wide-base radial tires is complex and requires high precision. In the actual production process of wide-base radial tires, carcass cord bending is one of the most common defects, which directly affects the performance of the tire. During the construction design process of tires, the "trial and error method" based on experience is often used to solve the problem of carcass cord bending. Yue Yaoping of Shandong Hongyu Rubber Co., Ltd. effectively solved the problem of carcass cord deform...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 周海超王国林周伟杨建梁晨魏新龙李昭
Owner SHANDONG LINGLONG TIRE
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