Oblique giant-scale engineering tyre

Abstract

The invention relates to a skew giant engineering tire, which comprises a buffer layer, a matrix cord fabric layer manufactured by a cord fabric cylinder; the matrix cord fabric layer comprises a matrix cord fabric inner layer, a matrix cord fabric middle layer and a matrix cord fabric outer layer; the matrix cord fabric outer layer comprises a matrix cord fabric outer layer wrapped on an obverse side and a matrix cord fabric outer layer with travelers wrapped on a reverse side; the matrix cord fabric outer layer wrapped on the obverse side is provided at least a strengthened layer in which elastic modulus of cord threads is greater than the elastic modulus of the cord threads of the cord fabric cylinder of the cord fabric outer layer of the tire body in which travelers are wrapped on the reverse side and the cord threads of the matrix cord fabric inner layer as well as the cord threads of the matrix cord fabric middle layer; furthermore, at least one layer of the cord thread in the buffer layer is aramid material and the buffer layer is a strengthened buffer layer. The crown of the tire provided by the invention has the capability of prickling resistance and cutting resistance; service life of the tire is greatly prolonged; rolling resistance of the tire is greatly reduced; compared with the present tire adopting nylon materials as the matrix cord threads of the cord fabric outer layer, safe driving distance of the tire can be increased by over 50 percent.

Description

(1) Technical field:

[0001] The invention relates to a tire, in particular to a bias giant engineering tire. (two) background technology:

[0002] The outer layer of the carcass ply of existing bias-ply giant engineering machinery tires generally uses nylon dipped cord fabric as the skeleton material (hereinafter referred to as nylon). The more layers of the outer layer of the ply, the worse the heat dissipation. In addition, when the tire is used in mine operations, especially iron ore and copper mines, due to the extremely harsh operating conditions and large load capacity, the operating time Therefore, the carcass of the tire is not resistant to puncture and cutting during use, and it is very easy to cause early puncture and puncture of the tire, thus affecting the safe use performance and service life of the tire. Aramid is a material with high hardness, high strength, and relatively large elastic modulus. Some researchers once hoped to use aramid instead of nylon as th...

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