CN218536222U

CN218536222U - All-steel radial RT tire

Info

Publication number: CN218536222U
Application number: CN202223226355.1U
Authority: CN
Inventors: 施晓路; 许美华; 刘伟彬; 王少朋; 于慧; 莫小凡
Original assignee: Shandong Xinhaoke Tire Co ltd
Current assignee: Shandong Xinhaoke Tire Co ltd
Priority date: 2022-12-02
Filing date: 2022-12-02
Publication date: 2023-02-28
Anticipated expiration: 2032-12-02

Abstract

The utility model relates to an all-steel radial RT tire, belonging to the tire technical field, comprising a tire body, a belt ply and a tire tread; the belt ply is at least two layers and is arranged between the tire body and the tire tread, the belt ply is made by cutting a steel wire calendered cord fabric, and the circumferential included angle between a steel wire and the tire is 15-55 degrees; the inside liner that is provided with of matrix, the matrix is decided for steel wire calendering curtain cloth and makes, the steel wire of matrix and tire circumference contained angle are 90. The utility model reduces the difficulty of the processing technique and saves the cost by improving the structure of the tread and the tire body; compared with the traditional semi-steel polyester fiber, the strength of the tire body is improved, and the safety and the wear resistance are enhanced.

Description

All-steel radial RT tire

Technical Field

The utility model relates to a radial tire especially relates to an all-steel radial RT tire, and it belongs to tire technical field.

Background

Radial tires are a structural form of tires, have good wear resistance and puncture resistance, and are widely used in the tire industry in recent years. The radial tire is classified into an all-steel radial tire and a semi-steel radial tire. The semi-steel tire is characterized in that steel wires are used as reinforcing layers at the tire tread part, and a tire body is made of nylon or polyester materials; the all-steel tire means that all tire bodies except tire surfaces are supported by steel wires, in the prior art, most car tires are semi-steel radial tires, and truck tires and engineering tires are all the all-steel radial tires. With the development of the automobile industry technology, the horsepower of an automobile is higher and higher, the requirement of a cross-country car on tires is higher and higher when the cross-country car passes through a complex terrain, the conventional semi-steel radial tire cannot meet the requirement of a part of large vehicles on the tires, and the tires are flatter due to the fact that the high-trafficability cross-country radial tire is compared with other all-steel tires, so that the process difficulty of forming and vulcanizing the all-steel radial RT tires is high. Therefore, an all-steel radial RT tire is urgently needed, which improves the tearing strength of rubber materials, reduces the heat generation of the tire and reduces the production difficulty by improving the structures of the tread and the tire body.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: overcomes the defects in the prior art and provides an all-steel radial RT tire.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

an all-steel radial RT tire comprises a tire body, a belt ply and a tire tread; the belt ply is at least two layers and is arranged between the tire body and the tire tread, the belt ply is made by cutting a steel wire calendered cord fabric, and the circumferential included angle between a steel wire and the tire is 15-55 degrees; the inside liner that is provided with of matrix, the matrix is decided for steel wire calendering curtain cloth and makes, the steel wire of matrix and tire circumference contained angle are 90.

Still further, the belt layer includes a first belt layer and a second belt layer.

Furthermore, the edges of two sides of the first belt layer are respectively wrapped with a first edge-wrapping rubber sheet; and the upper part and two side edges of the second belt layer are coated with second edge covering rubber sheets.

Further, base rubber is arranged on the upper portion of the edge of the belted layer, shoulder cushion rubber is arranged on the lower portion of the edge of the belted layer, and the base rubber and the shoulder cushion rubber form an arc-shaped tire shoulder structure between the tire body and the tire surface.

Furthermore, the tire body and the free end of the inner liner reversely extend to form a cavity, a tire bead is arranged in the cavity and filled with a triangular rubber, a seam allowance of the cavity is provided with a seam allowance reinforcing layer, and the outside of the seam allowance reinforcing layer and the bottom of the inner liner are coated with wear-resistant rubber.

Furthermore, the tire further comprises a tire side, wherein the tire side extends upwards to be attached to the base rubber and the tire tread, and extends downwards to be attached to the wear-resistant rubber.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model has the advantages that the tyre belt and the tyre body are made of steel wire rolled cord fabric, and compared with the traditional semi-steel polyester fiber, the tyre body strength is improved; the design of the included angle between the carcass steel wire and the belted layer steel wire reduces the model variation of the tire crown and increases the wear resistance; through the structural design of arranging at least two layers of belt layers and one layer of tire body, the difficulty of the processing technology is reduced, and the cost is saved.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the present invention.

In the figure, 1, the carcass; 2. a belt ply; 201. a first belt layer; 202. a second belt layer; 203. a first edge-covered film; 204. a second edge-covered film; 3. a tread; 4. an inner liner layer; 5. a base glue; 6. shoulder pad glue; 7. a bead; 8. triangular glue; 9. a bead reinforcing layer; 10. wear-resistant glue; 11. a sidewall.

Detailed Description

The principles and features of the present invention will be described with reference to fig. 1-2, which are provided for illustration only and are not intended to limit the scope of the invention.

An all-steel radial RT tire comprises a tire body 1, a belt layer 2 and a tire tread 3; the belt ply 2 is arranged between the tire body 1 and the tire tread 3, and the inner side of the tire body 1 is provided with an inner liner 4; the upper part of the edge of the belted layer 2 is provided with a base rubber 5, the lower part of the edge of the belted layer is provided with a shoulder pad rubber 6, and the base rubber 5 and the shoulder pad rubber 6 form an arc-shaped tire shoulder structure between the tire body 1 and the tire surface 3, so that the strength of the tire is enhanced. The tire body 1 is formed with the cavity with the reverse extension of the free end of inner liner 4, be provided with the tire bead 7 in the cavity to it has apex 8 to fill, cavity mouth of a river department is provided with bead strengthening layer 9, the outside of bead strengthening layer 9 and the cladding of inner liner 4 bottom have wear-resisting glue 10. The tire further comprises a tire side 11, wherein the tire side 11 extends upwards to be attached and connected with the base rubber 5 and the tire tread 3, and extends downwards to be attached and connected with the wear-resistant rubber 10.

The tire body 1 is made by cutting a steel wire calendered cord fabric, and the circumferential included angle between the steel wire of the tire body 1 and the tire is 90 degrees; compared with semi-steel polyester fibers, the tire body 1 has higher tire body strength and improves the safety of the tire. And the tyre body 1 is 1 layer, thus simplifying the processing technology.

The belt ply 2 is made by cutting a steel wire calendered cord fabric, and the circumferential included angle between a steel wire and the tire is 15-55 degrees. The belt layer 2 is at least two layers, in this embodiment, the belt layer 2 is two layers, and includes a first belt layer 201 and a second belt layer 202. The edges of two sides of the first belt layer 201 are respectively coated with a first edge covering rubber sheet 203; the upper part and two side edges of the second belt layer 202 are wrapped with second edge wrapping films 204. The rigidity of the tire crown is increased, the deformation of the tire crown is reduced, and the wear resistance of the tire is improved.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. An all-steel radial RT tire is characterized in that: comprises a tire body (1), a belt layer (2) and a tire tread (3); the belt ply (2) is at least two layers and is arranged between the tire body (1) and the tire tread (3), the belt ply (2) is made by cutting a steel wire calendered cord fabric, and the circumferential included angle between a steel wire and the tire is 15-55 degrees; the tyre body (1) inboard is provided with inner liner (4), the tyre body (1) is decided for the steel wire calendering curtain cloth and is made, the steel wire and the tire circumference contained angle of tyre body (1) are 90.

2. An all-steel radial RT tire according to claim 1, characterized in that: the belt layer (2) comprises a first belt layer (201) and a second belt layer (202).

3. An all-steel radial RT tire according to claim 2, characterized in that: the edges of two sides of the first belt layer (201) are respectively coated with a first edge covering rubber sheet (203); and the upper part and two side edges of the second belt layer (202) are coated with second edge covering films (204).

4. An all-steel radial RT tire according to claim 1, characterized in that: the upper part of the edge of the belt ply (2) is provided with a base rubber (5), the lower part of the edge is provided with a shoulder pad rubber (6), and the base rubber (5) and the shoulder pad rubber (6) form an arc-shaped tire shoulder structure between the tire body (1) and the tire tread (3).

5. An all-steel radial RT tire according to claim 4, characterized in that: the tyre body (1) and the free end of the inner liner (4) are reversely extended to form a cavity, a tyre bead (7) is arranged in the cavity, and a triangular rubber (8) is filled in the cavity, a seam allowance of the cavity is provided with a seam reinforcing layer (9), and the seam reinforcing layer (9) is coated with a wear-resistant rubber (10) outside and at the bottom of the inner liner (4).

6. An all-steel radial RT tire according to claim 5, characterized in that: the tire further comprises a tire side (11), wherein the tire side (11) extends upwards to be attached and connected with the base rubber (5) and the tire tread (3), and extends downwards to be attached and connected with the wear-resistant rubber (10).