CN218257578U

CN218257578U - Tire bead structure for improving bearing performance of aviation radial tire

Info

Publication number: CN218257578U
Application number: CN202222073566.XU
Authority: CN
Inventors: 刘力; 田庆军
Original assignee: Fujian Hangtai Technology Co ltd
Current assignee: Fujian Hangtai Technology Co ltd
Priority date: 2022-08-08
Filing date: 2022-08-08
Publication date: 2023-01-10
Anticipated expiration: 2032-08-08

Abstract

The utility model discloses a promote aircraft radial tire bearing capacity's tire bead structure relates to tire technical field. The tire bead aims at solving the problem that the tire in the prior art is poor in bearing performance and causes early damage to the tire bead. The utility model provides a promote tire bead structure of aviation radial tire bearing capacity, includes the side wall, the side wall sets up at the skin, and the inboard of side wall is equipped with the inoxidizing coating, and one side that the inoxidizing coating was kept away from the side wall is equipped with the transition layer, and one side that the inoxidizing coating was kept away from to the transition layer is equipped with the bead filler, buries the bead core underground in the bead filler. This promote aircraft radial tire bearing capacity's tire bead structure guarantees the bearing capacity of side wall, and then has strengthened the bearing capacity of tire, avoids each extreme point to be close to the too high phenomenon of the stress concentration themogenesis that causes too, effectively improves the bulk strength at tire bead position, reduces its themogenesis bad phenomenon of deformation, has increased the stability of tire bead, has avoided long-time use to cause the tire bead to take place to warp when improving bearing capacity, and then the condition of blowing out appears.

Description

Tire bead structure for improving bearing performance of aviation radial tire

Technical Field

The utility model relates to a tire technical field specifically is a promote aircraft radial tire bearing capacity's tire bead structure.

Background

Aircraft tires are typically used under high internal pressure, high loads, large deformations, and extremely strong impact loads. The invention with the application number of CN201911103588.2 provides a radial aircraft tire bead structure, which can disperse the stress of a tire bead part by mutually staggering the turn-up end points of 4 inner cord fabric layers according to the requirements of the invention, and arranging buffer rubber sheets, bead rubber sheets and bead reinforcing rubber sheets among the cord fabric layers, prevent the phenomena of delamination and bulging among the cord fabric layers, turn-up end parts of the cord fabric layers, the cord fabric layers and sidewall rubber layers from occurring at the tire bead part, improve the stability of the tire bead and improve the high-speed fatigue resistance of the tire.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a promote aircraft radial tire bearing capacity's tire bead structure, the bearing capacity who guarantees the side of the wall has, and then the bearing capacity of tire has been strengthened, avoid each extreme point to be close to the too high phenomenon of the stress concentration themogenesis that causes, effectively improve the bulk strength at tire bead position, reduce its themogenic bad phenomenon of deformation, the stability of tire bead has been increased, avoided long-time use to cause the tire bead to take place to warp when improving bearing capacity, and then the effect of the condition of tire burst appears, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a promote tire bead structure of aviation radial tire bearing capacity, includes the side wall, the side wall sets up at the skin, and the inboard of side wall is equipped with the inoxidizing coating, and one side that the side wall was kept away from to the inoxidizing coating is equipped with the transition layer, and one side that the inoxidizing coating was kept away from to the transition layer is equipped with the apex, buries the bead core underground in the apex.

The protective layer comprises a curtain cloth forward wrapping layer, a reinforcing rubber strip, a bead protection rubber and a curtain cloth reverse wrapping layer, the bead protection rubber is arranged on the outer side of the curtain cloth forward wrapping layer, a layer of reinforcing rubber strip is arranged between the curtain cloth reverse wrapping layer and the curtain cloth forward wrapping layer, and the curtain cloth reverse wrapping layer wraps the outer side of the transition layer.

The transition layer comprises a carcass layer, a first reinforcing layer and a second reinforcing layer, wherein the first reinforcing layer is wrapped on the outer side of the carcass layer, and the second reinforcing layer is arranged on the inner side of the carcass layer.

Preferably, the lower end point of the reinforcing rubber strip is the middle point of the height from the bead core to the rim contact point, and the upper end point of the reinforcing rubber strip is a golden section point of the distance from the widest part of the tire section to the rim contact point.

Preferably, the first reinforcing ply is wrapped around the carcass ply in a U-shaped manner, and the outer end point of the first reinforcing ply is radially offset from the end point of the carcass ply.

Preferably, the two sets of bead cores are arranged and embedded in the bead filler, each bead core comprises a steel wire ring and a supporting rubber, and the steel wire ring is embedded in the supporting rubber.

Preferably, the cross section of the steel wire ring is hexagonal, quadrangular, circular or elliptical, the supporting rubber is extruded by one or more rubbers, and the first reinforcing layer and the second reinforcing layer are steel cord layers.

Preferably, the end positions of the bead protection rubber, the reinforcing rubber strip and the triangular rubber are staggered by more than 5mm in sequence.

Compared with the prior art, the beneficial effects of the utility model are as follows:

this promote aircraft radial tire bearing capacity's tire bead structure, the reinforcement adhesive tape that sets up makes the tire bead be favorable to the transmission of stress, avoid appearing blowing out the phenomenon, guarantee the bearing capacity of side wall, and then strengthened the bearing capacity of tire, the matrix layer of setting, first enhancement layer and second enhancement layer can produce great strain and stress concentration, and first enhancement layer and second enhancement layer are the steel cord layer, the steel cord can transmit bending stress, the bearing capacity of tire has further been improved, the bead mouth protects the glue, the terminal point position of reinforcement adhesive tape and apex staggers in proper order, avoid each terminal point to be close to the too high phenomenon of the stress concentration themogenesis that causes, effectively improve the bulk strength at tire bead position, reduce its themogenic bad phenomenon of deformation, the bead core sets up two sets of, the stability of tire bead has been increased, avoid long-time use to cause the tire bead to take place to warp when improving bearing capacity, and then the condition of blowing out a tyre appears, the life of tire bead has been improved.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a part of the structure of the present invention;

FIG. 3 is a schematic view of the transition layer structure of the present invention

FIG. 4 is a partial schematic structural view of the present invention;

fig. 5 is a schematic view of the bead core structure of the present invention.

In the figure: 1. a sidewall; 2. a protective layer; 21. positively wrapping the cord fabric; 22. a reinforcing rubber strip; 23. protecting the adhesive at the seam allowance; 24. reversely wrapping the cord fabric; 3. a transition layer; 31. a carcass layer; 32. a first reinforcing layer; 33. a second reinforcing layer; 4. triangular glue; 5. a bead core; 51. a bead ring; 52. and supporting the glue.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to solve the technical problems that the existing tire bead needs to bear load in the using process, the sinking rate of the tire is high, the stress of the tire bead is easy to concentrate, the bearing performance of the tire is poor, and the early damage of the tire bead is caused, please refer to fig. 1-5, the embodiment provides the following technical scheme

The utility model provides a promote tire bead structure of aviation radial tire bearing capacity, including side wall 1, side wall 1 sets up at the skin, the inboard of side wall 1 is equipped with inoxidizing coating 2, one side that side wall 1 was kept away from to inoxidizing coating 2 is equipped with transition layer 3, one side that inoxidizing coating 2 was kept away from to transition layer 3 is equipped with bead filler 4, bury bead core 5 in the bead filler 4 underground, bead core 5 sets up two sets ofly altogether, all bury underground in bead filler 4, bead core 5 includes steel wire winding 51 and supporting rubber 52, steel wire winding 51 buries underground in supporting rubber 52, steel wire winding 51's cross section is the hexagon, the quadrangle, circular or oval, supporting rubber 52 is by one or more rubber extrusion moulding.

The protective layer 2 comprises a curtain cloth forward bag 21, a reinforcing rubber strip 22, a bead opening protecting rubber 23 and a curtain cloth backward bag 24, the bead opening protecting rubber 23 is arranged on the outer side of the curtain cloth forward bag 21, a layer of reinforcing rubber strip 22 is arranged between the curtain cloth backward bag 24 and the curtain cloth forward bag 21, the lower end point of the reinforcing rubber strip 22 is the middle point of the height from a bead core to a rim contact point, the upper end point of the reinforcing rubber strip 22 is a golden section point of the widest position of the tire section and the distance from the rim contact point, the curtain cloth backward bag 24 is wrapped on the outer side of the transition layer 3, and the end points of the bead opening protecting rubber 23, the reinforcing rubber strip 22 and the bead filler 4 are sequentially staggered by more than 5 mm.

The transition layer 3 includes a carcass layer 31, a first reinforcing layer 32 and a second reinforcing layer 33, the first reinforcing layer 32 is wrapped around the carcass layer 31, the second reinforcing layer 33 is disposed on the inner side of the carcass layer 31, the first reinforcing layer 32 is wrapped around the carcass layer 31 in a U-shaped manner, the outer end point of the first reinforcing layer 32 is radially displaced from the end point position of the carcass layer 31, and the first reinforcing layer 32 and the second reinforcing layer 33 are steel cord layers.

Specifically, the reinforcing rubber strip 22 is arranged between the cord fabric turn-up 24 and the cord fabric turn-up 21, so that the tire bead is favorable for stress transfer, the tire burst phenomenon is avoided, the bearing capacity of the tire side 1 is ensured, further, the bearing performance of the tire is enhanced, when the tire side 1 is subjected to bending deformation towards the outside due to the comprehensive effect of tire crown pressure and tire rim supporting force, the arranged tire body layer 31, the first reinforcing layer 32 and the second reinforcing layer 33 can generate large strain and stress concentration, the first reinforcing layer 32 and the second reinforcing layer 33 are steel cord layers, the steel cords can transfer bending stress, the bearing performance of the tire is improved, the bead opening protecting rubber 23, the end positions of the reinforcing rubber strip 22 and the bead apex 4 are sequentially staggered by more than 5mm, further, the heat generation of rubber is greatly reduced, the overall strength of the tire bead position is effectively improved, the bad phenomenon of the heat generation of deformation is reduced, the two sets of the bead cores 5 are arranged, the bead cores are fixed through the bead apex 4, the bead cores 5 are filled with the supporting rubber 52, the stability of the bead cores is improved, and the long-time tire burst phenomenon caused by using is avoided while the bearing performance is improved.

To sum up, this promote aircraft radial tire bearing capacity's tire bead structure, the reinforcement adhesive tape 22 that sets up makes the tire bead be favorable to the transmission of stress, avoid appearing the phenomenon of blowing out, guarantee the bearing capacity of side wall 1, and then strengthened the bearing capacity of tire, the carcass layer 31 that sets up, first enhancement layer 32 and second enhancement layer 33 can produce great strain and stress concentration, and first enhancement layer 32 and second enhancement layer 33 are the steel cord layer, the steel cord can transmit bending stress, the bearing capacity of tire has further been improved, bead mouth protects gluey 23, the terminal point position of reinforcement adhesive tape 22 and bead apex 4 staggers more than 5mm in proper order, avoid each terminal point to be close to the too high phenomenon of the stress concentration themogenesis that causes, effectively improve the bulk strength at tire bead position, reduce its themogenesis unheated phenomenon of deformation, bead core 5 sets up two sets of groups, the stability of tire bead has been increased, avoid long-time use to cause the tire bead to take place to warp and then the condition that the tire bursts out when improving bearing capacity.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a promote aircraft radial tire bearing capacity's tire bead structure, includes side wall (1), its characterized in that: the tire side tire is characterized in that the tire side (1) is arranged on the outer layer, the inner side of the tire side (1) is provided with the protective layer (2), one side, far away from the tire side (1), of the protective layer (2) is provided with the transition layer (3), one side, far away from the protective layer (2), of the transition layer (3) is provided with the bead filler (4), and the bead core (5) is buried in the bead filler (4);

the protective layer (2) comprises a curtain cloth forward wrapping layer (21), a reinforcing rubber strip (22), a bead opening protective rubber (23) and a curtain cloth reverse wrapping layer (24), the bead opening protective rubber (23) is arranged on the outer side of the curtain cloth forward wrapping layer (21), a layer of reinforcing rubber strip (22) is arranged between the curtain cloth reverse wrapping layer (24) and the curtain cloth forward wrapping layer (21), and the curtain cloth reverse wrapping layer (24) is wrapped on the outer side of the transition layer (3);

the transition layer (3) comprises a carcass layer (31), a first reinforcing layer (32) and a second reinforcing layer (33), wherein the first reinforcing layer (32) is wrapped on the outer side of the carcass layer (31), and the second reinforcing layer (33) is arranged on the inner side of the carcass layer (31).

2. A bead structure for improving the bearing performance of an aircraft radial tire according to claim 1, wherein: the lower end point of the reinforcing rubber strip (22) is the middle point of the height from the bead core to the rim contact point, and the upper end point of the reinforcing rubber strip (22) is a golden section point of the widest part of the tire section and the distance from the rim contact point.

3. A bead structure for improving the bearing performance of an aircraft radial tire according to claim 1, wherein: the first reinforcing layer (32) is wrapped outside the carcass layer (31) in a U-shaped manner, and the outer end point of the first reinforcing layer (32) is radially displaced from the end point position of the carcass layer (31).

4. A bead structure for improving the bearing performance of an aircraft radial tire according to claim 1, wherein: the bead cores (5) are arranged in two groups and are embedded in the bead filler (4), each bead core (5) comprises a steel wire ring (51) and a supporting rubber (52), and the steel wire rings (51) are embedded in the supporting rubber (52).

5. A tire bead structure for improving the bearing performance of an aeronautical radial tire according to claim 4, wherein: the cross section of the steel wire ring (51) is hexagonal, quadrangular, circular or elliptical, the supporting rubber (52) is formed by extruding one or more rubbers, and the first reinforcing layer (32) and the second reinforcing layer (33) are steel cord layers.

6. A bead structure for improving the bearing performance of an aircraft radial tire according to claim 1, wherein: the end point positions of the bead filler (23), the reinforcing rubber strip (22) and the triangular rubber (4) are staggered by more than 5mm in sequence.