CN210851899U

CN210851899U - Novel structure of all-steel loading meridian tubeless tire bead

Info

Publication number: CN210851899U
Application number: CN201921551297.5U
Authority: CN
Inventors: 朱典武
Original assignee: Hubei Oles Tire Co ltd
Current assignee: Hubei Oles Tire Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-06-26
Anticipated expiration: 2029-09-18

Abstract

The utility model relates to an automobile tire technical field especially relates to a novel structure of all-steel load meridian tubeless tire bead, including the steel wire matrix, tire bead chafer, first nylon tire bead chafer, second nylon tire bead chafer, the wear-resisting glue of bead opening, the steel wire winding, the inner liner, first triangle packing rubber core, second triangle packing rubber core, first triangle packing rubber core and second triangle packing rubber core closely laminate on the steel wire winding, the bottom of steel wire winding is provided with the steel wire matrix, the below of steel wire matrix closely laminates in proper order has tire bead chafer, first nylon tire bead chafer, second nylon tire bead chafer, inner liner and the wear-resisting glue of bead opening. The utility model solves the problem that the bonding performance between the steel wire turnup end point and the sizing material has fatigue failure due to the excessive heat generation of the strain energy of the turnup end point of the tire body cord fabric; meanwhile, two layers of nylon cloth are added between the tire bead steel wire component and the rim for protection, so that the endurance life of the tire is prolonged, and the safety performance of the tire is guaranteed.

Description

Novel structure of all-steel loading meridian tubeless tire bead

Technical Field

The utility model relates to an automobile tire technical field especially relates to a novel structure of all-steel load meridian tubeless tire bead.

Background

With the rapid development and progress of the national expressway, the all-steel heavy duty radial tire is gradually upgraded and transformed from an inner tire to a tubeless tire, the long-distance high-speed running puts higher updating requirements on the durability of the tire bead of the tubeless tire, but the all-steel heavy duty radial tire often has the problems of early fatigue failure such as bead cracking, bead grinding and the like due to the rapid and frequent stress and strain acting heat of the tire bead part under the conditions of load, speed and the like. The bead external crack damage point is often appeared near the turn-up end point of the steel wire carcass. In recent years, the structure of the domestic all-steel radial tire is continuously innovated and developed, the technology of stabilizing the large stress and strain of the turn-up end point of the steel wire tire body when the steel wire tire body runs under load by using the steel wire chafer to protect the dispersed stress of the turn-up end point of the steel wire tire body is also greatly improved, but the stress concentration, the large strain or the protection measure of the turn-up end point of the steel wire tire body is not thoroughly and effectively solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel structure of an all-steel loading meridian tubeless tire bead.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the design is a novel structure of an all-steel loading meridian tubeless tire bead, including steel wire carcass, tire bead chafer, first nylon tire bead chafer, second nylon tire bead chafer, the wear-resisting glue of bead, steel wire winding, inner liner, first triangle packing rubber core, second triangle packing rubber core, first triangle packing rubber core and second triangle packing rubber core closely laminate on the steel wire winding, and the bottom of steel wire winding is provided with the steel wire carcass, the below of steel wire carcass closely laminates in proper order has tire bead chafer, first nylon tire bead chafer, second nylon tire bead chafer, inner liner and the wear-resisting glue of bead, the outside that first triangle packing rubber core and second triangle packing rubber core is provided with the steel wire carcass, the inside of inner liner is provided with the tire bead chafer.

Preferably, the first nylon chafer and the second nylon chafer are coated on the outer side of the bead wire chafer, the second nylon chafer is 10mm-20mm higher than the outer end of the first nylon chafer, the first nylon chafer is 15mm-30mm higher than the turn-up outer end of the steel wire carcass, and the turn-up outer end point of the steel wire carcass is 10mm-20mm higher than the outer end of the bead wire chafer.

Preferably, an isolation thick rubber sheet is arranged between the first nylon chafer and the bead wire chafer; and two end points of the rubber sheet coated on the tire bead wire wrapping cloth are additionally attached to the inner part of the inner liner.

Preferably, the outer side of the triangular filling rubber core is provided with a reverse-wrapped cord fabric of a steel wire carcass.

Preferably, the reverse wrapping outer end point of the steel wire carcass is separated from the first nylon chafer cloth through an isolation rubber sheet.

The utility model provides a pair of novel structure of all steel load meridian tubeless tire bead, beneficial effect lies in:

1. because the height of the two layers of nylon tire bead wrapping cloth is higher than that of the steel wire tire body turn-up end points, the stress strain caused by the deformation of the steel wire tire body turn-up end points under the load driving can be inhibited from being overlarge, the strain energy of the steel wire tire body turn-up end points is reduced, the heat generation is reduced, and the early bonding fatigue damage between the steel wire tire body turn-up end points and the rubber material is effectively prevented.

2. Two layers of nylon tire bead wrapping cloth are added between the steel wire ring and the rim, so that a steel wire tire body is firmly clamped on the rim by the steel wire ring, and strain energy generated by stress strain of the end point of the steel wire tire body due to deformation of the tire under load running is reduced, so that the tire bead is small in heat generation, and the outward crack of a tire bead opening is reduced.

3. The two layers of nylon chafer cover the steel wire chafer and the turn-up part of the steel wire carcass, rigid transition is arranged between the steel wire component and the wheel rim, the steel wire component is protected from being damaged by the wheel rim due to hard abrasion of the wheel rim, such as the wheel rim opening and the like, and the service life of the driving mileage of the tire is prolonged.

Drawings

FIG. 1 is a schematic view of a cross-sectional structure of a novel structure of an all-steel loading meridian tubeless tire bead provided by the utility model;

FIG. 2 is a schematic structural view of an isolation thick rubber sheet of the novel structure of an all-steel loading meridian tubeless tire bead of the utility model;

FIG. 3 is a schematic structural view of a turn-up cord fabric of a novel structure of an all-steel loading meridian tubeless tire bead;

figure 4 is the utility model provides an all steel load meridian does not have isolation film structure schematic diagram of inner tube tire bead novel structure.

In the figure: 1 steel wire carcass, 2 tire bead wire infantees, 3 first nylon tire bead infantees, 4 second nylon tire bead infantees, 5 rim of a seam wear-resistant glue, 6 steel wire rings, 7 inner liners, 8 first triangle packing rubber cores, 9 second triangle packing rubber cores, 10 keep apart the slabber, 11 films, 12 turn over the drape, 13 keep apart the film.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1

Referring to fig. 1-4, a novel all-steel loading meridian tubeless tire bead structure comprises a steel wire tire body 1, a tire bead filler cloth 2, a first nylon tire bead filler cloth 3, a second nylon tire bead filler cloth 4, a bead filler wear-resistant rubber 5, a steel wire ring 6, an inner liner 7, a first triangular filler rubber core 8 and a second triangular filler rubber core 9, wherein the first triangular filler rubber core 8 and the second triangular filler rubber core 9 are tightly attached to the steel wire ring 6, the bottom of the steel wire ring 6 is provided with the steel wire tire body 1, the lower part of the steel wire tire body 1 is sequentially and tightly attached with the tire bead filler cloth 2, the first nylon tire bead filler cloth 3, the second nylon tire bead filler cloth 4, the inner liner 7 and the bead filler wear-resistant rubber 5, the outer sides of the first triangular filler rubber core 8 and the second triangular filler rubber core 9 are provided with the steel wire tire body 1, the inner part of the inner liner 7 is provided with the tire bead filler cloth 2, and the first nylon tire bead filler cloth 3 and the second nylon tire bead filler cloth 4 are coated on, the second nylon chafer 4 is 10mm-20mm higher than the outer end of the first nylon chafer 3, the first nylon chafer 3 is 15mm-30mm higher than the turn-up outer end of the steel wire carcass 1, the turn-up outer end of the steel wire carcass 1 is 10mm-20mm higher than the outer end of the chafer 2, because the two layers of nylon chafers are higher than the turn-up end of the steel wire carcass 1, the turn-up end of the steel wire carcass 1 can be inhibited, the stress strain brought by the deformation of the tire under load driving is overlarge, the strain energy of the turn-up end of the steel wire carcass 1 is reduced, the heat generation is reduced, the early bonding fatigue damage between the turn-up end of the steel wire carcass 1 and the sizing material is effectively prevented, two layers of nylon chafers are added between the bead ring 6 and the rim, the steel wire carcass 1 is firmly clamped on the rim by the bead ring 6, the strain energy generated by the stress strain of the steel wire carcass 1 end caused by the deformation of the tire under, therefore, the heat generation of the tire bead is small, the outward crack of the bead opening is reduced, the two layers of nylon tire bead wrapping cloth cover the turn-up parts of the tire bead wire wrapping cloth 2 and the steel wire tire body 1, rigid transition is formed between the steel wire component and the wheel rim, the steel wire component is protected from being worn by the wheel rim to cause damage phenomena such as the bead opening and the like, and the service life of the driving mileage of the tire is prolonged.

Example 2

Referring to fig. 2-4, as another preferred embodiment of the present invention, the difference from embodiment 1 lies in that, an isolation heavy duty sheet 10 is provided between the first nylon chafer 3 and the bead filler 2, the inside of the inner liner 7 is attached with two end points of the rubber sheet 11 wrapped on the bead filler 2, the outside of the triangular filling rubber core 8 is provided with the reverse wrapped cord fabric 12 of the steel wire carcass 1, the reverse wrapped outer end point of the steel wire carcass 1 is separated from the first nylon chafer 3 by the isolation rubber sheet 13, the isolation heavy duty sheet 10, the rubber sheet 11 and the isolation rubber sheet 13 are provided to enhance the structural stability inside the tire bead, so that the connection between the layers is tighter, the generation of the internal stress of the tire is reduced, and the tire is prevented from being heated from the inside under the condition of long-time running, and the tire damage is caused.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A novel all-steel loading meridian tubeless tire bead structure comprises a steel wire tire body (1), a tire bead cord fabric (2), a first nylon tire bead fabric (3), a second nylon tire bead fabric (4), a bead opening wear-resistant rubber (5), a steel wire ring (6), an inner liner (7), a first triangular filling rubber core (8) and a second triangular filling rubber core (9), and is characterized in that the first triangular filling rubber core (8) and the second triangular filling rubber core (9) are tightly attached to the steel wire ring (6), the steel wire tire body (1) is arranged at the bottom of the steel wire ring (6), the tire bead cord fabric (2), the first nylon tire bead fabric (3), the second nylon tire bead fabric (4), the inner liner (7) and the bead opening wear-resistant rubber (5) are sequentially and tightly attached to the lower portion of the steel wire tire body (1), the steel wire tire body (1) is arranged on the outer sides of the first triangular filling rubber core (8) and the second triangular filling rubber core (9), and the inside of the inner liner (7) is provided with a bead wire wrapping cloth (2).

2. The novel structure of an all-steel load-carrying radial tubeless tire bead as claimed in claim 1, wherein said first nylon chafer (3) and said second nylon chafer (4) are wrapped outside said bead wire chafer (2), said second nylon chafer (4) is 10mm-20mm higher than the outer end of said first nylon chafer (3), said first nylon chafer (3) is 15mm-30mm higher than the turn-up outer end of said steel cord body (1), and the turn-up outer end of said steel cord body (1) is 10mm-20mm higher than the outer end of said bead wire chafer (2).

3. The novel structure of an all-steel load-carrying radial tubeless tire bead as claimed in claim 1, wherein an isolation heavy rubber sheet (10) is disposed between the first nylon chafer (3) and the bead wire chafer (2), and rubber sheets (11) are attached to the inside of the inner liner (7) to cover two end points of the bead wire chafer (2).

4. The novel structure of an all-steel load-carrying radial tubeless tire bead as claimed in claim 1, wherein the outside of said apex filler rubber core (8) is provided with a turn-up cord fabric (12) of the steel carcass (1).

5. The new structure of all-steel load-carrying radial tubeless tire bead as claimed in claim 1, wherein the turn-up outer end point of the steel wire carcass (1) is separated from the first nylon chafer (3) by an isolation rubber sheet (13).