CN203681156U - All-steel radial tire with reinforced outside of tire bead - Google Patents
All-steel radial tire with reinforced outside of tire bead Download PDFInfo
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- CN203681156U CN203681156U CN201420009856.0U CN201420009856U CN203681156U CN 203681156 U CN203681156 U CN 203681156U CN 201420009856 U CN201420009856 U CN 201420009856U CN 203681156 U CN203681156 U CN 203681156U
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Abstract
The utility model relates to an all-steel radial tire with a reinforced outside of a tire bead. The tire comprises a tire crown, a tire shoulder, a carcass ply, a belt ply and the tire bead, wherein the tire bead comprises a bead ring, bead filler and a bead chafer; the carcass ply reversely wraps the bead ring; a steel cord reverse wrapping layer and a steel cord reinforcing layer are respectively arranged on two sides of the carcass ply; the steel cord reverse wrapping layer is tightly arranged between the carcass ply and a lining layer; the steel cord reinforcing layer is arranged between the carcass ply of the outside of the tire bead and the bead filler. By increasing the width of a steel wire reinforcing layer, the reverse wrapping height of the outside is greatly increased, so that the stiffness change of the tire bead part is smooth; meanwhile, short steel ladles are adhered to the inner side of the carcass ply, so that the high-load resistance of the tire bead is improved, the durability and the abrasive resistance of the tire are improved and the oil consumption is effectively reduced.
Description
Technical field
The utility model relates to the manufacture field of all-steel radial tyre, relates in particular to a kind of all-steel radial tyre of adjusting tyre bead ladle structure.
Background technology
Along with developing rapidly of auto-industry, more and more higher to the requirement of tyre performance, so compared with bias tire, the all-steel radial tyre with good wear-resisting fuel-economizing has obtained the development being exceedingly fast, and become the main product of tire industry.But the performance and used life that affects tire that tyre bead problem can be serious in all-steel radial tyre driving process, thereby the design improvement of bead structure has become one of main construction of domestic and international each giant tyre enterprise.The body cord of radial-ply tyre is radial array, and sidewall is more soft, and in tire running process, tyre bead is stressed very large, less stable, and the ability of tyre bead portion opposing high load capacity is lower.Under high-load condition, often there is the situation such as breach, distortion in tyre bead portion, so in order to guarantee the rigidity of tyre bead, improve the rideability of tire, tyre bead portion must be strengthened, and make have a suitable rigidity excessive between tyre bead and soft sidewall simultaneously, and prevent that stress concentrates, improve the rideability of tire.
China's tyre industry through 20 years, by introducing and digest and assimilate external outstanding technology, has formed huge productive capacity at all steel load radial tire production field since late 1980s.The current tire output of China is large, specification is many, but the homogeneity of all-steel load-bearing radial tire is serious, and the quality of product needs to improve.
Along with the economic development of China, the transportation of China is also developing rapidly.Meanwhile, the development model of highway in China transportation is developed to the heavy-load automobile of high tonnage, high speed by the autotruck of low tonnage, low speed; Developed to payload of freight container by the load-carrying of bulk goods formula; Developed to the long distance of high density or extra long distance by high density short range transportation, this must expand the field of application of all steel load radial tire.
Chinese utility model patent (application number: 02234433.0 applying date: 2002-05-10) discloses a kind of reinforcing structure for seam allowance of full steel wire heavy load radial tire, mainly contain steel bead wire, the composite filled adhesive tape of two kinds of obvious elastomeric material compositions of performance difference, radial carcass cord layer by layer, bead wirecord fabric enhancement Layer and fiber/rubber combined enhancement Layer composition, it is characterized in that, from tire section, steel bead wire top is by two kinds of composite filled adhesive tape that the obvious elastomeric material of difference forms in hardness, radial carcass cord layer by layer after steel bead wire bottom reversed its end points near bead apex near the low sizing material of hardness, there is the rim of the mouth wirecord fabric enhancement Layer of one deck through steel bead wire bottom in carcass ply outside layer by layer, there is fiber/rubber combined enhancement Layer in rim of the mouth wirecord fabric enhancement Layer outside.
Chinese utility model patent (application number: 200820149422.5 applyings date: 2008-09-25) discloses a kind of radial tire deadblow out portion reinforcing structure of all-steel load radial tire, comprise wire bead, compound tyre bead bead apex, be provided with casingply outward in wire bead and composite filled adhesive tape, casingply is provided with rim of the mouth steel wire infantees outward, casingply anti-package end points, higher than the outer end points of rim of the mouth steel wire infantees, has the wear-resisting glue in one deck rim of the mouth and sidewall rubber outward at rim of the mouth steel wire infantees.The outer end points of casingply anti-package end points and rim of the mouth steel wire infantees top is provided with end-blocking adhesive tape, and end-blocking adhesive tape is by casingply anti-package end points and the completely coated sealing of the outer end points of rim of the mouth steel wire infantees.The rim of the mouth reinforcement mode that the utility model is taked is strengthened emphatically the region of bead most fragile but not the entirety of tyre bead portion is strengthened, and has guaranteed the impact in service life of shoulder zone less thereby the bulk strength of bead area increases appropriateness.
Chinese invention patent (application number: 201310113155.1 applyings date: 2013-04-03) discloses heavier-duty load-carrying whole steel wire radial tyre, carcass outside, rim of the mouth place is provided with the double-deck heel fabric for carcass anti-package end points is pushed down, steel wire heel fabric and steel wire heel fabric are U-shaped encapsulated by structures rim of the mouth place carcass, can increase like this rim of the mouth intensity, stop the problem that rim of the mouth exists.And rim of the mouth adopts U-shaped packet form, carcass anti-package end points is pushed down, and is adopted 15 degree angles, simultaneously rim of the mouth steel wire softness, rather than spend as carcass 90, end points is also neat, rigidity is too strong, excessively not smooth, by hard steel wire once excessively to soft sizing material.After like this improving now by firmly to soft excessive gradually, can make rim of the mouth split and the rim of the mouth improvement greatly of reeling off raw silk from cocoons, extended service life, saved resource.
All-steel radial tire quality problems have very most of quality problems for tyre bead portion, and this is also one of great technical barrier of facing of domestic and international tire enterprise, and the utility model is the achievement based on the long-term research of technique of the market demand and enterprise just.
Summary of the invention
The technological deficiency existing in order to solve tyre bead, first object of the present utility model is to provide a kind of tyre bead the outer all-steel radial tyre of strengthening, do not affecting in other performance basis of tire, guarantee the compactness that coordinates with wheel rim of tyre bead take into account the dress tire of tire and tire and wheel rim close performance, and the endurance quality of actv. raising tire.
In order to realize first above-mentioned object, the utility model has adopted following technical scheme:
The outer all-steel radial tyre of strengthening of a kind of tyre bead, this tire comprises crown, tire shoulder, casingply, bracing ply and tyre bead, described tyre bead comprises bead coil, glue is protected in triangle rubber and rim of the mouth, described casingply anti-package bead coil, the both sides of casingply are respectively equipped with wirecord fabric anti-package layer and wirecord fabric enhancement Layer, wirecord fabric anti-package laminating close be arranged on casingply and inside liner between, wirecord fabric anti-package layer is walked around bead coil cross section and is U-shaped, the inner side end points of wirecord fabric anti-package layer and outer point are all higher than the anti-package end points of casingply, described wirecord fabric enhancement Layer be arranged on casingply and triangle rubber outside tyre bead between, the upper extreme point of wirecord fabric enhancement Layer is positioned at the below of the anti-package end points of casingply, lower extreme point ends at bead coil.
As preferably, the differential of the described outer point of wirecord fabric anti-package layer and the anti-package end points of casingply is 10 ~ 20mm, and the differential of the anti-package end points of inner side end points and casingply is 5 ~ 10mm.
As preferably, the wirecord fabric width of described wirecord fabric anti-package layer is 100 ~ 200mm, and thickness is 2.0 ~ 3.0mm.
As preferably, the differential of the outer point of described wirecord fabric enhancement Layer and the anti-package end points of casingply is 5 ~ 20mm.
As preferably, the wirecord fabric width 30 ~ 100mm of described wirecord fabric enhancement Layer, thickness is 2.0 ~ 3.0mm.
As preferably, described wirecord fabric anti-package layer and the steel cord of wirecord fabric enhancement Layer all adopt high tensile steel wire, and the intensity of high tensile steel wire is 2500 ~ 4500MPa.
As preferably, described wirecord fabric anti-package layer is with wirecord fabric enhancement Layer by parallel steel wire and rubber composition, and steel wire and tire circumferentially have 30 ~ 45° angle degree.
The utility model, owing to having adopted above-mentioned technical scheme, by the improvement to steel wire reinforcing layer width, is significantly increased the turn up height in outside, makes tyre bead portion stiffness change steady.Stick on short ladle in casingply inner side, actv. has been strengthened the anti-top load performance of tyre bead simultaneously.Endurance quality and the wear resisting property of tire are improved.Can effectively reduce oil consumption simultaneously.
We by carry out the trial-production of product and lathe is durable and tyre bead durability test cycle after, from test figures, can obviously find out compared with prior art, the utility model has effectively suppressed tyre bead portion radial displacement laterally in the process of moving, has improved the tyre bead endurance quality of tire.Meanwhile, this technical solution of the utility model is easy to implement in technology, workable, has practicality.The convenient enforcement of going into operation in prior art.
Accompanying drawing explanation
Fig. 1 is the bead structure schematic diagram of the utility model all-steel radial tyre.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is made a detailed explanation.
The outer all-steel radial tyre of strengthening of tyre bead, this tire comprises crown, tire shoulder, casingply 1, inside liner 2, bracing ply and tyre bead.As shown in Figure 1, described tyre bead comprises that bead coil 7, triangle rubber 3 and rim of the mouth protect glue 4, described casingply 1 anti-package bead coil 7, and the both sides of casingply 1 are respectively equipped with wirecord fabric anti-package layer 5 and wirecord fabric enhancement Layer 6.5 laminating of described wirecord fabric anti-package layer be arranged on casingply 1 and inside liner 2 between, wirecord fabric anti-package layer 5 is walked around bead coil 7 cross sections and is U-shaped, the inner side end points of wirecord fabric anti-package layer 5 and outer point are all higher than the anti-package end points of casingply 1, the differential of the outer point of wirecord fabric anti-package layer 5 and the anti-package end points of casingply 1 is 10 ~ 20mm, and the differential of the anti-package end points of inner side end points and casingply 1 is 5 ~ 10mm.Described wirecord fabric anti-package layer 5 is made up of parallel steel wire and rubber, and steel wire and tire circumferentially have 30 ° of angles, and wirecord fabric width is 150mm, and thickness is 2.3mm, and steel cord adopts high tensile steel wire, and the intensity of high tensile steel wire is 2500 ~ 4500MPa.
As shown in Figure 1, the described wirecord fabric enhancement Layer 6 wirecord fabric anti-package layer 5 of fitting arranges, wirecord fabric enhancement Layer 6 is made up of parallel steel wire and rubber, steel wire and tire circumferentially have 30 ° of angles, the wirecord fabric width 60mm of wirecord fabric enhancement Layer 6, thickness is 2.3mm, and steel cord adopts high tensile steel wire, and the intensity of high tensile steel wire is 3500MPa.Wirecord fabric enhancement Layer 6 arrange casingply 1 and triangle rubber 3 outside tyre bead between, the upper extreme point of wirecord fabric enhancement Layer 6 is positioned at the below of the anti-package end points of casingply 1, lower extreme point ends at bead coil 7, and the differential of the anti-package end points of upper extreme point and casingply 1 is 5 ~ 20mm.
The method of manufacturing the radial-ply tyre of above-mentioned employing the design bead structure, the method comprises the following steps:
1) previously prepared the first wirecord fabric enhancement Layer 5 and the second wirecord fabric enhancement Layer 6;
2), when green tyres moulding, by mechanical device, the first wirecord fabric enhancement Layer 5 and the second wirecord fabric enhancement Layer 6 are passed on forming machine auxiliary drum;
3) the first wirecord fabric enhancement Layer 5 of fitting on inside liner 2;
4) symmetrical laminating carcass ply again;
5) casingply 1 laminating arranges the second wirecord fabric enhancement Layer 6;
6) carry out all the other forming steps;
7) after moulding, tyre vulcanization is also checked, packed.
The utlity model has afterwards after testing following effect:
One, this utility model can significantly improve the tyre bead endurance quality of tire
The utility model project organization tire is compared with original structure tire, and actv. has improved the tyre bead endurance quality of all-steel radial tyre.At standard load 200%, under the condition of standard pressure 80%, the utility model design has been carried out repeatedly the test of twice load tyre bead endurance quality with former designing tyre.Lathe Data Comparison is as follows:
| The test of tyre bead endurance quality | Contrast for the first time | Contrast for the second time | Contrast for the third time |
| Standard tire | 7h44min | 5h34min | 5h11min |
| The utility model design experiment tire | 15h07min | 13h22min | 14h32min |
By the durable lathe correlation data of the tyre bead of 200% load: the twice of the standard tire durable 5 ~ 7h of being of tyre bead that loads; The utility model designing tyre is durable is 14 ~ 15h, and tyre bead durability actv. improves 30% ~ 50%.Because the lathe data of tire and product are paid compensation for rate and are had good conformability, thus this programme after operation, the tyre bead of enterprise is paid compensation for and is expected to reduce by 50%, this will bring huge economic benefit for enterprise.
Two, the anti-top load performance of reinforced bead, improves tyre bead safety
The quality accident of automobile 40% comes from tire, and tyre bead odd test is fried is also one of typical defect in home market, and the anti-performance of carrying of tyre bead has been strengthened in this utility model design, can effectively reduce the quality accident causing because of tire, ensures user's the security of the lives and property.
Three, improve the refresh rate of tire
Bead distortion are one of main symptom that affect tyre rebuilding recycle, the outer enhancement Layer ladle structure that the utility model adopts can effectively suppress the torsional deformation of tyre bead under high load capacity, significantly improve rate of reoperative tyre, be conducive to realize recycle, environmental protection.
Claims (7)
1. the outer all-steel radial tyre of strengthening of tyre bead, this tire comprises crown, tire shoulder, casingply (1), inside liner (2), bracing ply and tyre bead, described tyre bead comprises bead coil (7), glue (4) is protected in triangle rubber (3) and rim of the mouth, described casingply (1) anti-package bead coil (7), it is characterized in that: the both sides of casingply (1) are respectively equipped with wirecord fabric anti-package layer (5) and wirecord fabric enhancement Layer (6), wirecord fabric anti-package layer (5) laminating be arranged on casingply (1) and inside liner (2) between, wirecord fabric anti-package layer (5) is walked around bead coil (7) cross section and is U-shaped, the inner side end points of wirecord fabric anti-package layer (5) and outer point are all higher than the anti-package end points of casingply (1), described wirecord fabric enhancement Layer (6) be arranged on casingply (1) and triangle rubber (3) outside tyre bead between, the upper extreme point of wirecord fabric enhancement Layer (6) is positioned at the below of the anti-package end points of casingply (1), and lower extreme point ends at bead coil (7).
2. the outer all-steel radial tyre of strengthening of a kind of tyre bead according to claim 1, it is characterized in that: the differential 10 ~ 20mm of being of the anti-package end points of the outer point of wirecord fabric anti-package layer (5) and casingply (1), the differential of the anti-package end points of inner side end points and casingply (1) is 5 ~ 10mm.
3. the outer all-steel radial tyre of strengthening of a kind of tyre bead according to claim 1, is characterized in that: the wirecord fabric width of wirecord fabric anti-package layer (5) is 100 ~ 200mm, and thickness is 2.0 ~ 3.0mm.
4. the outer all-steel radial tyre of strengthening of a kind of tyre bead according to claim 1, is characterized in that: the differential 5 ~ 20mm of being of the anti-package end points of the outer point of wirecord fabric enhancement Layer (6) and casingply (1).
5. the outer all-steel radial tyre of strengthening of a kind of tyre bead according to claim 1, is characterized in that: the wirecord fabric width 30 ~ 100mm of wirecord fabric enhancement Layer (6), thickness is 2.0 ~ 3.0mm.
6. the outer all-steel radial tyre of strengthening of a kind of tyre bead according to claim 1, it is characterized in that: the steel cord of wirecord fabric anti-package layer (5) and wirecord fabric enhancement Layer (6) adopts high tensile steel wire, and the intensity of high tensile steel wire is 2500 ~ 4500MPa.
7. the outer all-steel radial tyre of strengthening of a kind of tyre bead according to claim 1, it is characterized in that: wirecord fabric anti-package layer (5) is with wirecord fabric enhancement Layer (6) by parallel steel wire and rubber composition, and steel wire and tire circumferentially have 30 ~ 45° angle degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009856.0U CN203681156U (en) | 2014-01-07 | 2014-01-07 | All-steel radial tire with reinforced outside of tire bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420009856.0U CN203681156U (en) | 2014-01-07 | 2014-01-07 | All-steel radial tire with reinforced outside of tire bead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203681156U true CN203681156U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420009856.0U Withdrawn - After Issue CN203681156U (en) | 2014-01-07 | 2014-01-07 | All-steel radial tire with reinforced outside of tire bead |
Country Status (1)
| Country | Link |
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| CN (1) | CN203681156U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754070A (en) * | 2014-01-07 | 2014-04-30 | 中策橡胶集团有限公司 | All-steel radial tyre for tyre bead external reinforcement as well as preparation method thereof |
| CN108638757A (en) * | 2018-04-16 | 2018-10-12 | 中策橡胶集团有限公司 | A kind of load-carrying Pneumatic belt tire with double steel wire supporting material bead structures |
| CN114312164A (en) * | 2022-01-27 | 2022-04-12 | 青岛双星轮胎工业有限公司 | Reinforcing layer and run-flat tire |
-
2014
- 2014-01-07 CN CN201420009856.0U patent/CN203681156U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103754070A (en) * | 2014-01-07 | 2014-04-30 | 中策橡胶集团有限公司 | All-steel radial tyre for tyre bead external reinforcement as well as preparation method thereof |
| CN103754070B (en) * | 2014-01-07 | 2016-03-23 | 中策橡胶集团有限公司 | All-steel radial tyre that a kind of tyre bead is strengthened outward and preparation method thereof |
| CN108638757A (en) * | 2018-04-16 | 2018-10-12 | 中策橡胶集团有限公司 | A kind of load-carrying Pneumatic belt tire with double steel wire supporting material bead structures |
| CN108638757B (en) * | 2018-04-16 | 2024-02-13 | 中策橡胶集团股份有限公司 | Pneumatic radial tire with double steel wire reinforced material bead structure for load carrying |
| CN114312164A (en) * | 2022-01-27 | 2022-04-12 | 青岛双星轮胎工业有限公司 | Reinforcing layer and run-flat tire |
| CN114312164B (en) * | 2022-01-27 | 2024-04-05 | 青岛双星轮胎工业有限公司 | Reinforcement layer and explosion-proof tire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140702 Effective date of abandoning: 20160323 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |