CN204749754U - Load radial tire tire bead structure - Google Patents
Load radial tire tire bead structure Download PDFInfo
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- CN204749754U CN204749754U CN201520440301.6U CN201520440301U CN204749754U CN 204749754 U CN204749754 U CN 204749754U CN 201520440301 U CN201520440301 U CN 201520440301U CN 204749754 U CN204749754 U CN 204749754U
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- steel wire
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Abstract
The utility model relates to a load radial tire tire bead structure, including setting up in the inside steel wire winding of matrix, the tire bead is filled and is glued, the wear -resisting glue of tire bead and extend the steel wire winding bottom matrix curtain cloth of package to the steel wire winding outside of turning over from the tire tyre cavity, and extend and to the anti - two -layer steel wire rim of the mouth cloth of package of the steel wire winding outside side direction steel wire winding bottom in the matrix, matrix outside steel wire rim of the mouth cloth is walked around steel wire winding bottom and is extended to the tire inboard, the inboard steel wire rim of the mouth cloth of matrix extends to steel wire winding bottom, the height that highly all is higher than the matrix curtain cloth of the two -layer steel wire rim of the mouth cloth that extends to the steel wire winding outside. Reduce the matrix curtain cloth package height of turning over, avoided the tire to appear that the rim of the mouth is empty, the rim of the mouth is split, the matrix reels off raw silk from cocoons the problem of exploding. Improve the structural strength and the rigidity at tire tire bead position simultaneously to improve tire load capacity and durability.
Description
Technical field
The utility model relates to a kind of heavy load radial tire bead structure, and a kind of raising loading of tire ability, extends the bead structure of Using Life of Tyre more precisely.
Background technology
Existing heavy load radial motor tire bead structure has multiple, but outside bead coil, mostly be single layer of wires tire bead cloth anti-package: when carcass anti-package is higher than steel wire tire bead cloth, because of carcass cord diameter and stiffness by itself large, in vehicle traveling tire deformation in compression process, carcass anti-package end points place filler gum stress is concentrated, cause hydraulic performance decline, bead separation or rim of the mouth are split to cause tire to occur in early days; When tire bead cloth anti-package is higher than carcass, because of tire bead cloth self rigidity and design angle, bead support hydraulic performance decline, and carcass turn up height reduces, and under the operating mode that loading of tire ability is high, very easily causes carcass to extract out under bead coil, forms explosion of reeling off raw silk from cocoons.
For solving above bead structure Problems existing, improve loading of tire ability, extend the service life of tire, the utility model have employed new type bead structure.
Utility model content
In view of this, the utility model is devoted to better to solve tyre rim sky, rim of the mouth is split, carcass reels off raw silk from cocoons Blow-up Problems, proposes a kind of heavy load radial tire bead structure.
The utility model solves this technical problem adopted technical scheme:
A kind of heavy load radial tire bead structure, comprise the bead coil, bead filler rubber, the wear-resisting glue of tyre bead and the carcass ply that extends in tire bottom bead coil outside anti-package to bead coil that are arranged at carcass inside, and to extend bottom side direction bead coil in carcass and to the two-layer steel wire tire bead cloth of anti-package outside bead coil, outside carcass, steel wire tire bead cloth is walked around bottom bead coil and is extended to inside tire, inside carcass, steel wire tire bead cloth extends to bottom bead coil, and the height of the two-layer steel wire tire bead cloth extended outside bead coil is all higher than the height of carcass ply.
Outside bead coil, two-layer steel wire tire bead cloth is by carcass ply interval, is positioned at the inside and outside both sides of carcass.
With bead coil bottom water horizontal line for basic point, outside carcass, tire bead cloth height is greater than steel wire tire bead cloth height inside carcass.
Carcass ply and interior outside steel wire tire bead cloth diff-H are at 0-50mm.
Between two-layer steel wire tire bead cloth steel cord and tyre crown equatorial line, shape forms an angle, and angle is between 0-70 °.
A kind of heavy load radial tire bead structure, on the basis of improving tyre bead integral rigidity and support performance, reduces carcass ply turn up height, quick-fried problem of avoiding that bead separation appears in tire, rim of the mouth is split, carcass reels off raw silk from cocoons.Improve structural strength and the rigidity at tire bead position simultaneously, thus improve loading of tire ability and endurance quality.
Accompanying drawing explanation
Fig. 1 novel heavy load radial tire bead structure generalized section
Description of symbols in figure: 1. steel wire tire bead cloth inside carcass; 2. carcass; 3. steel wire tire bead cloth outside carcass.
Detailed description of the invention
1 the utility model is described in further detail by reference to the accompanying drawings: in tire, extend the carcass ply outside anti-package to bead coil bottom bead coil, two-layer steel wire tire bead cloth, bead filler rubber, the wear-resisting glue of tyre bead.Outside bead coil two-layer steel wire tire bead cloth turn up height higher than carcass and each other and and carcass between there is reasonable poor level and be positioned at both sides inside and outside carcass ply.Outside bead structure bead coil, two-layer steel wire tire bead cloth is positioned at the inside and outside both sides of anti-package carcass.Bead structure is with bead coil bottom water horizontal line for basic point, and outside carcass, inside tire bead cloth turn up height and carcass, steel wire tire bead cloth turn up height is all greater than carcass turn up height.Bead structure carcass and interior outside steel wire tire bead cloth turn up height difference level are each other at 0-50mm.Between bead structure two-layer steel wire tire bead cloth steel cord and tyre crown equatorial line, angle is between 0-70 °.Outside bead structure carcass, steel wire tire bead cloth is walked around bottom bead coil and is extended in tire.Inside bead structure carcass, steel wire tire bead cloth extends to bottom bead coil.
In Tire Construction Design process, tire material distribution graph according to novel heavy load radial tire bead structure accurately calculates, carcass width, steel wire tire bead cloth width inside and outside carcass anti-package, location and laminating direction, the plane in bead coil drop point site and Tire Construction Design is wide.Reasonable computation determination tire is constructed, with ensure shaping after tire bead structure meet the claim of above-mentioned utility model.
Inside and outside steel wire tire bead cloth steel cord carries out severing by 0-70 ° of angle in severing process.
In the process of tire building, each half-blank is fitted successively according to tire construction requirement on laminating drum, and coating squence is as follows:
1) according to sidewall positioning requirements in Tire Construction Design, symmetrical laminating sidewall (comprising wear-resisting glue) centered by drum.
2) according to inside liner width, positioning requirements in Tire Construction Design, inside liner of fitting centered by drum.
3) according to steel wire tire bead cloth location, direction requirement outside anti-package carcass in Tire Construction Design, symmetrical laminating outside steel wire tire bead cloth centered by drum.
4) according to carcass width, positioning requirements in Tire Construction Design, carcass of fitting centered by drum.
5) according to steel wire tire bead cloth location, direction requirement inside anti-package carcass in Tire Construction Design, symmetrical laminating inner side steel wire tire bead cloth centered by drum.
6) according to the wide requirement of Tire Construction Design midplane, centered by drum, carry out symmetry buckle tyre bead (tyre bead after triangle rubber of applying ointment or plaster).
7) according to forming process requirement, laminating drum each half-blank composite members and auxiliary bulging bracing ply, tyre surface half-blank composite members carry out anti-package, pressing and forming on assembly drum.
Contrast test
The tyre model of carrying out contrast experiment is 12.00R20-18PR, and contrast test adopts the utility model bead structure and conventional bead structure respectively, and other tyre semi-finished products and structure are all identical, and contrast experiment is as follows:
1) bead durability can be tested
Adopt a Tire testing drum, experiment tire is installed on the wheel rim of a standard, fill with the air pressure of 600Kpa (standard inflation pressure is for 830Kpa), and load the load 7500Kg of 200%, rotate with the linear velocity of 30 kilometers/hour under the ambient temperature of 35 DEG C; Until damaging appears in this tire, mileage value when record damages, machine test time.In Table 1, an experimental result exponential representation, the tire that this index is produced with prior art is for a reference value 100, and this index is higher, and tire bead endurance quality is better.
2) conventional endurance quality test
Conventional endurance test method: according to GB GB/T4501-2008 truck tyre performance Experimental Method in Laboratory, endurance quality test method performs.Test, until damaging appears in this tire, records mileage value when damaging, the machine test time.In Table 1, an experimental result exponential representation, the tire that this index is produced with prior art is for a reference value 100, and this index is higher, and tyres durable performance is better.
Table 1
| Tire | Bead durability energy | Conventional endurance quality |
| Conventional bead structure | 100 | 100 |
| The utility model new type bead structure | 210 | 190 |
Above the implementation that specific embodiments is described is intended to specific descriptions of the present utility model, can not be interpreted as it is to restriction of the present utility model.Those of ordinary skill in the art are under the instruction of utility model, and can make various variant on the basis of the embodiment described in detail, these variants all should be included within design of the present utility model.Utility model scope required for protection is only limited by described claims.
Claims (5)
1. a heavy load radial tire bead structure, comprise the bead coil being arranged at carcass inside, bead filler rubber, the wear-resisting glue of tyre bead and the carcass ply extended in tire bottom bead coil outside anti-package to bead coil, and to extend bottom side direction bead coil in carcass and to the two-layer steel wire tire bead cloth of anti-package outside bead coil, outside carcass, steel wire tire bead cloth is walked around bottom bead coil and is extended to inside tire, inside carcass, steel wire tire bead cloth extends to bottom bead coil, it is characterized in that, the height of the two-layer steel wire tire bead cloth extended outside bead coil is all higher than the height of carcass ply.
2. heavy load radial tire bead structure according to claim 1, is characterized in that: outside bead coil, two-layer steel wire tire bead cloth is by carcass ply interval, is positioned at the inside and outside both sides of carcass.
3. heavy load radial tire bead structure according to claim 1, is characterized in that: with bead coil bottom water horizontal line for basic point, outside carcass, the height of tire bead cloth is greater than the height of steel wire tire bead cloth inside carcass.
4. heavy load radial tire bead structure according to claim 1, is characterized in that: carcass ply and interior outside steel wire tire bead cloth diff-H are at 0-50mm.
5. heavy load radial tire bead structure according to claim 1, is characterized in that: between two-layer steel wire tire bead cloth steel cord and tyre crown equatorial line, shape forms an angle, and angle is between 0-70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440301.6U CN204749754U (en) | 2015-06-25 | 2015-06-25 | Load radial tire tire bead structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520440301.6U CN204749754U (en) | 2015-06-25 | 2015-06-25 | Load radial tire tire bead structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204749754U true CN204749754U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520440301.6U Active CN204749754U (en) | 2015-06-25 | 2015-06-25 | Load radial tire tire bead structure |
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| CN (1) | CN204749754U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711346A (en) * | 2015-06-25 | 2016-06-29 | 青岛双星轮胎工业有限公司 | Load-bearing radial tire ring structure |
| CN107444027A (en) * | 2016-04-12 | 2017-12-08 | 韩国轮胎株式会社 | Strengthen the tubeless tyre of bead part |
-
2015
- 2015-06-25 CN CN201520440301.6U patent/CN204749754U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105711346A (en) * | 2015-06-25 | 2016-06-29 | 青岛双星轮胎工业有限公司 | Load-bearing radial tire ring structure |
| CN107444027A (en) * | 2016-04-12 | 2017-12-08 | 韩国轮胎株式会社 | Strengthen the tubeless tyre of bead part |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |