Tire with high-strength belt and process thereof

A belt layer, high-strength technology, applied to tire parts, reinforcing layers of pneumatic tires, tires, etc., can solve the problems of cost waste, insufficient strength, high strength, etc., and achieve improved service life, reasonable strength distribution, and long life long effect

Inactive Publication Date: 2010-12-29
HANGZHOU ZERO DEGREE TIRE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention mainly solves the technical problem that the strength of the middle part of the belt layer of the radial tire is not enough in the prior art, and the strength of both sides is too large, resulting in a waste of cost, and provides a kind of belt layer whose middle strength is strengthened, and the A high-strength belt tire with moderate strength on both sides, low cost and simple process

Method used

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  • Tire with high-strength belt and process thereof
  • Tire with high-strength belt and process thereof
  • Tire with high-strength belt and process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Such as figure 1 As shown, the present invention is a high-strength belted tire and its production process. The tire includes a carcass, a buffer layer 9, a belt 10, a sidewall 4 and a tread 11, and the carcass includes an inner cord Layer 1 and outer ply 3, the two sides of the inner ply 1 and outer ply 3 are provided with flanging, and the flanging is turned outward along the traveler 7 and attached to the outer ply 3, and the inner ply The flanges 1-1 on both sides are respectively 7mm longer than the flanges 3-1 on both sides of the outer ply, and the flanges 1-1 on both sides of the inner ply respectively wrap the flanges 3-1 on both sides of the outer ply, and the inner ply An inner sealing layer 8 is provided at the flanging of the inner ply, and the flanging 1-1 on both sides of the inner ply is wrapped by the encapsulation 5 arranged between the inner sealing layer 8 and the outer ply. The inner and outer plies are steel cords, and there is a colloidal interla...

Embodiment 2

[0079] Such as Figure 10 As shown, this embodiment is based on Embodiment 1, wherein the reinforcing part 10-1 of the belt layer 10 is a three-layer cord 10-2, and the cord bundle of the three-layer cord part of the belt layer reinforcing part is the second The laps partially overlap the first lap, and from the third lap partially overlap the previous two laps.

[0080] Correspondingly, in the process, when the cord bundle is wound, the belt forming drum is constantly rotating, and while it is rotating, a toggle mechanism is used to drive the cord bundle to run along the axial direction of the belt forming drum, and the belt Every time the belt layer forming drum rotates one circle, the distance of the belt layer routing driven by the toggle mechanism is greater than or equal to the width of the cord bundle. The driving mechanism drives the distance of the belt layer to be less than the width of the cord bundle, so that the second circle of the reinforcement partially overla...

Embodiment 3

[0082] This embodiment is based on embodiment 1 or embodiment 2, wherein the cords of the belt layer are aromatic polyamide cords, including the following:

[0083]

[0084]

[0085] The strength of the aramid cord is also quite reliable under the condition that the carcass is a steel cord, and its cost is much lower.

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Abstract

The invention relates to a tire with a high-strength belt, comprising a body, a buffer layer, the belt, walls and a tread, wherein cord bundles of the belt are formed by 1-5 cords side by side and are coated by a layer of rubber compounds; the cord bundles are formed by spiral coiling along the axial direction of the tire; the middle of the belt is provided with a reinforcing part; the reinforcing part is provided with two or three layers of cords; the width of the reinforcing part of the belt is (1 / 2)-(3 / 5) of the total width of the belt; and the width of the cords at the two sides of the reinforcing part is respectively (1 / 5)-(1 / 4) of the total width of the belt. The tire has the characteristics of low cost, simple process and high strength. The invention also provides a process of the tire with the belt, which is characterized by arranging a ring-shaped bulge on a forming drum of the belt. When the cords are wound on the forming drum, the distribution section of the cords instantly forms an arc, thus reducing the stress concentration at the two sides of the belt and realizing that the cords are not easy to expose when being worn at the two sides of the body.

Description

technical field [0001] The invention relates to a tire, in particular to a radial tire and its technology. Background technique [0002] The main structural features of existing radial tires have the following points: [0003] 1. The layers of the carcass cord are arranged in the meridian direction from one bead to the other. The stress generated by the internal pressure of the tire on the carcass cord is half less than that of ordinary bias tires, and all the cords are arranged in the direction of the force, and each cord is fully stressed; [0004] 2. The belt layer of the radial tire is the main stress-bearing part, which bears 60-75% of the total tensile force of the tire internal pressure; [0005] 3. Due to the radial arrangement of the carcass cords, the strength of the cords can be maximized, but the side of the carcass is soft and not rigid enough due to the small number of layers, and the normal deformation is 25-30% larger than that of bias tires. Large deforma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/18B60C15/04B29D30/20B29D30/38B29D30/46D01F6/60D01F6/80
Inventor 周明良
Owner HANGZHOU ZERO DEGREE TIRE TECH
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