CN214189194U - Large-scale high pressure aviation radial tire bead structure - Google Patents
Large-scale high pressure aviation radial tire bead structure Download PDFInfo
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- CN214189194U CN214189194U CN202022981687.5U CN202022981687U CN214189194U CN 214189194 U CN214189194 U CN 214189194U CN 202022981687 U CN202022981687 U CN 202022981687U CN 214189194 U CN214189194 U CN 214189194U
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Abstract
The utility model discloses a large-scale high pressure aviation radial tire bead structure, be equipped with the bead filler including the periphery that the steel wire rubber coating is circular shape steel wire winding and with the bead filler of steel wire winding contact, wherein the bead filler is circular-arcly with the contact site of steel wire winding, steel wire winding and bead filler periphery are equipped with the bead core film, the bead core film is wrapped up by the matrix fabric layer outward, the matrix fabric layer outside is equipped with the bead protector, bead reinforcement glue and air-tight layer glue, the bead protector is located matrix fabric layer outside bottom, bead reinforcement glue is just right with the air-tight layer glue to be located the bead toe top. The tire bead structure can prevent the tire bead from defects such as rubber shortage, line marks, exposed lines and the like after vulcanization, thereby improving the qualified rate of the finished tire products.
Description
Technical Field
The utility model relates to a tire bead structure specifically is a large-scale high pressure aviation radial tire bead structure.
Background
The 50 x 20.0R 2234 PR aircraft tire is a large, high-pressure and high-load aircraft radial tire, the inflated outer diameter of which reaches 1270mm, the rated speed reaches 378km/h, the rated load reaches 273.7kN, and the rated air pressure reaches 1620 kPa. Because the tire has high rated inflation pressure and rated load, the carcass framework material of the tire needs to adopt a cord with high strength, and the diameter of the cord with high strength is thick and hard, so that when the tire is formed by using the cord with high strength, large wrinkles are easily formed around the steel wire ring in the process of turning up the cord layer. When the tire with the wrinkles is vulcanized, the folded cords cannot be stretched due to overlapping, so that the flowability of rubber in the vulcanization process is influenced, and the non-uniform stretching of the cords is also caused, thereby influencing the performance of the finished tire. Meanwhile, the cord threads of the folds cause the cord threads in the tire to be distributed irregularly, and the distribution of materials in the tire is influenced. Finally, the finished tire product has the defects of tire bead glue shortage, line mark, line exposure and the like, so that the finished tire product is unqualified, and the qualification rate of the tire is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a large-scale high pressure aviation radial tire bead structure to the not enough of existence among the prior art. The tire bead structure can prevent the tire bead from defects such as rubber shortage, line marks, exposed lines and the like after vulcanization, thereby improving the qualified rate of the finished tire products.
Realize the utility model discloses the technical scheme of purpose is:
the bead structure of the large-scale high-pressure aviation radial tire comprises a bead ring and a bead filler, wherein the bead ring is provided with a steel wire rubber coating in a circular shape at the periphery, the bead filler is in contact with the bead ring, the contact part of the bead filler and the bead ring is in a circular arc shape, bead core rubber sheets are arranged at the peripheries of the bead ring and the bead filler, the bead core rubber sheets are wrapped by a carcass ply, bead protection rubber, bead reinforcing rubber and air-tight layer rubber are arranged on the outer side of the carcass ply, the bead protection rubber is positioned at the bottom of the outer side of the carcass ply, and the bead reinforcing rubber is opposite.
The steel wire ring is composed of a plurality of layers of thick steel wires with annular winding centers.
The thickness of the bead core rubber sheet is 1.0-1.5 mm.
The hardness and the modulus of the tire bead reinforcing rubber are gradually increased from inside to outside.
The bead protection rubber is made of high-hardness and high-modulus materials, and the thickness of the bead protection rubber is 2.5-3.0 mm.
The steel wire ring is round in shape and wound, and compared with a square or hexagonal steel wire ring, the outer surface of the steel wire ring is a smooth arc, so that when a cord fabric reversely wraps around the steel wire ring, the transition is more smooth, and the wrinkles of the cord fabric can be reduced; the contact part of the triangular rubber and the bead ring is in an arc shape so as to be better attached to the round bead ring; adopt the rubber sheet of bead core to cover steel wire winding and bead filler, guaranteed that its combination is firm also guaranteed that the matrix casing ply is more laminated when wrapping up its surface simultaneously.
The tire bead structure can prevent the tire bead from defects such as rubber shortage, line marks, exposed lines and the like after vulcanization, thereby improving the qualified rate of the finished tire products.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a schematic view of an apex in the example.
In the figure, 1, a steel wire ring 2, a steel wire rubber coating 3, a bead core rubber sheet 4, a bead apex 5, a carcass ply 6, a bead reinforcing rubber 7, a bead protection rubber 8 and an inner liner rubber are arranged.
Detailed Description
The present invention will be further described with reference to the following drawings and examples, but the present invention is not limited thereto.
Example (b):
referring to fig. 1, the bead structure of a large-scale high-pressure aircraft radial tire comprises a bead ring 1 with a circular bead ring rubber coating 2 arranged on the periphery and a bead apex 4 in contact with the bead ring 1, wherein the contact part of the bead apex 4 and the bead ring 1 is in an arc shape, as shown in fig. 2, bead core rubber sheets 3 are arranged on the peripheries of the bead ring 1 and the bead apex 4, the bead core rubber sheets 3 are wrapped by a tire body cord fabric 5, bead protection rubber 7, bead reinforcing rubber 6 and airtight layer rubber 8 are arranged on the outer side of the tire body cord fabric 5, the bead protection rubber 7 is positioned at the bottom of the outer side of the tire body cord fabric 5, as shown in fig. 1, the position A extends to the position B, and the bead reinforcing rubber 6 is opposite to the airtight layer rubber.
The steel wire ring 1 is composed of a plurality of layers of thick steel wires with annular winding centers.
The thickness of the bead core rubber sheet 3 is 1.0-1.5mm, and the thickness of the example is 1.0 mm.
The hardness and modulus of the bead reinforcing rubber 6 gradually increase from the inside to the outside.
The bead filler 7 is made of high-hardness and high-modulus material, and the thickness of the bead filler is 2.5-3.0mm, namely 2.5mm in the embodiment.
The bead ring 1 is round in shape and wound, and compared with a square or hexagonal bead ring, the bead ring has a smooth arc outer surface, so that when the carcass ply 5 is turned up and wound around the bead ring 1, the transition is more gradual, and the wrinkles of the carcass ply 5 can be reduced; the contact part of the triangular rubber 4 and the bead ring 1 is in a circular arc shape so as to be better attached to the circular bead ring 1; adopt bead core film 3 to wrap bead ring 1 and bead filler 4, guaranteed that its combination is firm simultaneously also guaranteed that carcass ply 5 is more laminated when wrapping up its surface.
Claims (5)
1. The bead structure of the large-scale high-pressure aviation radial tire is characterized by comprising a steel wire ring and a bead filler, wherein the steel wire ring is provided with a steel wire rubber coating in a circular shape at the periphery, the bead filler is in contact with the steel wire ring, bead core rubber sheets are arranged at the periphery of the steel wire ring and the bead filler, the bead core rubber sheets are wrapped by a tire body cord fabric, bead protection rubber, bead reinforcing rubber and air-tight layer rubber are arranged on the outer side of the tire body cord fabric, the bead protection rubber is positioned at the bottom of the outer side of the tire body cord fabric, and the bead reinforcing rubber is opposite to the air-tight layer rubber and positioned above a bead toe.
2. The large high pressure aircraft radial tire bead structure of claim 1, wherein said bead ring is comprised of a plurality of layers of thick steel wires whose fine wire winding center is annular.
3. The large high pressure aircraft radial tire bead structure of claim 1, wherein said bead core film thickness is 1.0-1.5 mm.
4. The large high pressure aircraft radial tire bead structure of claim 1, wherein said bead reinforcement rubber has a hardness and modulus that gradually increase from the inside to the outside.
5. The large high pressure aircraft radial tire bead structure of claim 1, wherein said bead filler is a high hardness, high modulus material and has a thickness of 2.5-3.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022981687.5U CN214189194U (en) | 2020-12-14 | 2020-12-14 | Large-scale high pressure aviation radial tire bead structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022981687.5U CN214189194U (en) | 2020-12-14 | 2020-12-14 | Large-scale high pressure aviation radial tire bead structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214189194U true CN214189194U (en) | 2021-09-14 |
Family
ID=77652111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022981687.5U Active CN214189194U (en) | 2020-12-14 | 2020-12-14 | Large-scale high pressure aviation radial tire bead structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214189194U (en) |
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2020
- 2020-12-14 CN CN202022981687.5U patent/CN214189194U/en active Active
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