CN102381143A - Reinforcing structure for all-steel cross-country radial tire bead - Google Patents
Reinforcing structure for all-steel cross-country radial tire bead Download PDFInfo
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- CN102381143A CN102381143A CN2010102704985A CN201010270498A CN102381143A CN 102381143 A CN102381143 A CN 102381143A CN 2010102704985 A CN2010102704985 A CN 2010102704985A CN 201010270498 A CN201010270498 A CN 201010270498A CN 102381143 A CN102381143 A CN 102381143A
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Abstract
A reinforcing structure for an all-steel cross-country radial tire bead comprises a steel wire ring (7) and composite filling rubber (2 and 6). A steel wire tire cord (5) is arranged outside the steel wire ring (7) and the composite filling rubber (2 and 6), bead nylon fabrics (3A, 3B, 3C and 3D) are arranged outside the steel wire tire cord (5), a reverse wrapping end point of the steel wire tire cord (5) is higher than an outer end point of each of the bead nylon fabrics (3A, 3B, 3C and 3D), and a bead wear-resistant rubber layer (4) and a side-wall rubber layer (1) are arranged outside the bead nylon fabric (3). The reinforcing structure is characterized in that the bead nylon fabric (3) is formed by intersecting at least two nylon cord layers, and the included angle of a nylon cord thread and the circumference ranges from 30 degrees to 90 degrees.
Description
Technical field
The present invention relates to tyre rim and strengthen, it can be applied to the cross-country radial-ply tyre of all types of all steels, but particularly is applicable to the adjustable inflation pressure tyre into cross-country broken country or desert pavement design.
Technical background
The position, rim of the mouth of the all-steel radial tyre of ordinary construction is made up of bead coil, steel wire carcass cord, outside or U shaped steel silk rim of the mouth enhancement Layer and wear-resisting glue etc.; The damage at position, rim of the mouth appears in the sub-port structure of this structure easily under tire heavy duty and low air pressure condition; This mainly is owing to following reason: the rigidity of carcass cord and steel wire infantees is big, and when squeegee action was bigger, carcass cord anti-package end points and heel fabric end points stress concentration were obvious at the position, rim of the mouth; The strain of end points place is serious; When tire constantly rotated, this big strain made this position produce huge heat, and heat constantly gathers and causes finally that elastomeric material is aging to become fragile and causes the crackle generation; When crackle along with repeatedly and constantly the enlarging of strain up to the tire outside, will cause the rim of the mouth explosion of tire and the in-use performance of tire is completely lost.Above-mentioned strain is big more, and the service life of tire is just short more, and performance is poor more.
Increase position, the rim of the mouth life-span mainly relies on the intensity that improves tyre bead portion to realize at present; As Chinese patent 00207683.7 adopt U shaped steel silk infantees enhancement Layer, Chinese patent 02234433.0 adds one deck nylon infantees enhancement Layer, Chinese patent 200820149422.5 in the steel wire infantees outside increases sealing rubber etc. in the enhancement Layer outer end; Such scheme has certain effect to the intensity that solves the position, rim of the mouth; But infrabar problem for cross-country radial-ply tyre; Not only need the rim of the mouth to have enough intensity, also must possess certain toughness, thereby reduce position, the rim of the mouth infantile failure of cross-country radial-ply tyre.
Summary of the invention
The objective of the invention is to overcome the above-mentioned shortcoming that exists in the prior art; Position, the rim of the mouth additional strengthening of the cross-country radial-ply tyre of a kind of all steel is provided; This structure will make the tyre rim position when having enough intensity; Have good toughness, this structure is adapted to cross-country radial-ply tyre, satisfies it and under the situation of non-road surface, carries out the pressure regulation use.
The objective of the invention is to realize through following technical scheme
Position, all steel of the present invention cross-country radial-ply tyre rim of the mouth additional strengthening; Comprise bead coil, compound tyre bead filling glue; Outside bead coil and composite filled glue, be provided with steel wire carcass cord; Carcass cord peripheral hardware has rim of the mouth nylon infantees, and each layer nylon infantees is equal difference and distributes, and the wear-resisting glue in one deck rim of the mouth is arranged outside the nylon infantees of rim of the mouth.
Position, described all steel cross-country radial-ply tyre rim of the mouth additional strengthening, nylon infantees present position, rim of the mouth integral thickness is excessively even, and thickest point differs 2～5mm with the thinnest dot thickness.
Wide wrong subsides and the mode of pasting of position, said rim of the mouth additional strengthening employing, adjacent each layer is intersection and distributes, and each layer cord angle and circumferential angle are between 30 to 90 °.
Position, said rim of the mouth additional strengthening, rim of the mouth nylon infantees adopts the U type structure of wrapped wire circle, and its outer end highest point is lower than uppermost 10～50mm.
Beneficial effect of the present invention is following: rim of the mouth nylon bag cloth adopts adjacent two layers to be the intersection arrangement among (1) the present invention, forms the net structure at position, rim of the mouth, with the sufficient intensity that guarantees the tyre rim position; (2) owing to adopt multilayer rim of the mouth nylon infantees; Each interlayer equal difference distributes, and makes the thickness at position, rim of the mouth excessively even, and the thickness difference of thickness and thinnest part is at 2～5mm; The transition of stress at position, rim of the mouth was more even when tire used, and reduced the stress concentration degree at position, rim of the mouth; (3) nylon infantees in rim of the mouth adopts the form of low inside and high outside U type wrapped wire circle, has effectively strengthened position, rim of the mouth in-to-in intensity, makes position, rim of the mouth intensity distributions even, the infantile failure at position, rim of the mouth when reducing the tire infrabar.
Description of drawings
Fig. 1 is the section drawing with cross-country radial-ply tyre of all steel of position, rim of the mouth of the present invention additional strengthening.
Fig. 2 is a partial enlarged drawing of selecting the zone among Fig. 1.
Fig. 3 is the laminating type and difference level mode of rim of the mouth nylon infantees.
The specific embodiment
As shown in the figure, position, all steel of the present invention cross-country radial-ply tyre rim of the mouth additional strengthening comprises bead coil (7), composite filled glue (2,6); At bead coil (7) and the outer steel wire carcass cord (5) that is provided with of composite filled glue (2,6), outer rim of the mouth nylon infantees (3A, the 3B of being provided with of steel wire carcass cord (5); 3C, 3D), steel wire carcass cord (5) anti-package end points is higher than rim of the mouth nylon infantees (3A; 3B, 3C, 3D) outer end points; Wear-resisting glue in one deck rim of the mouth (4) and sidewall rubber (1) are arranged outside rim of the mouth nylon infantees (3), it is characterized in that: rim of the mouth nylon infantees (3) adopts at least 2 layers of nylon cord to intersect to form, and nylon cord and circumferential angle are between 30 to 90 °.
Position, described all steel cross-country radial-ply tyre rim of the mouth additional strengthening is characterized in that: rim of the mouth nylon infantees (3) present position integral thickness is excessively even, and thickest point differs 2～5mm with the thinnest dot thickness.
Position, described all steel cross-country radial-ply tyre rim of the mouth additional strengthening is characterized in that: (3C 3D) adopts wide wrong subsides and mode of pasting to the nylon infantees, can adopt the molding mode (the instance figure is an equal difference form outside the outside) of interior equal difference in the outside and outer equal difference for 3A, 3B.
Position, described all steel cross-country radial-ply tyre rim of the mouth additional strengthening is characterized in that: rim of the mouth nylon infantees (3) adopts the U type structure of wrapped wire circle (7), and its outer end highest point is lower than uppermost 10～50mm.
Among the present invention, rim of the mouth nylon infantees 3 is cut into certain angle and width after rolling through the fibercord flattening mill, fits on make-up machine according to mode shown in Figure 3, and the difference level G between each layer is identical, and the width L of each layer is identical.The all tire parts aftershaping that finishes of on make-up machine, fitting goes out green tyre, and by processing the cross-country radial-ply tyre of all steel with structure of the present invention after the vulcanizer sulfuration.
Claims (4)
1. position, all steel cross-country radial-ply tyre rim of the mouth additional strengthening comprises bead coil (7), composite filled glue (2,6), at bead coil (7) and composite filled glue (2; 6) the outer steel wire carcass cord (5) that is provided with, outer rim of the mouth nylon infantees (3A, the 3B of being provided with of steel wire carcass cord (5); 3C, 3D), steel wire carcass cord (5) anti-package end points is higher than rim of the mouth nylon infantees (3A; 3B, 3C, 3D) outer end points; Wear-resisting glue in one deck rim of the mouth (4) and sidewall rubber (1) are arranged outside rim of the mouth nylon infantees (3), it is characterized in that: rim of the mouth nylon infantees (3) adopts at least 2 layers of nylon cord to intersect to form, and nylon cord and circumferential angle are between 30 to 90 °.
2. position, all steel according to claim 1 cross-country radial-ply tyre rim of the mouth additional strengthening is characterized in that: rim of the mouth nylon infantees (3) present position integral thickness is excessively even, and thickest point differs 2～5mm with the thinnest dot thickness.
3. position, all steel according to claim 1 cross-country radial-ply tyre rim of the mouth additional strengthening; It is characterized in that: nylon infantees (3A, 3B, 3C; 3D) adopt wide wrong subsides and mode of pasting, can adopt the molding mode (the instance figure is an equal difference form outside the outside) of interior equal difference in the outside and outer equal difference.
4. position, all steel according to claim 1 cross-country radial-ply tyre rim of the mouth additional strengthening is characterized in that: rim of the mouth nylon infantees (3) adopts the U type structure of wrapped wire circle (7), and its outer end highest point is lower than uppermost 10～50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102704985A CN102381143A (en) | 2010-09-02 | 2010-09-02 | Reinforcing structure for all-steel cross-country radial tire bead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102704985A CN102381143A (en) | 2010-09-02 | 2010-09-02 | Reinforcing structure for all-steel cross-country radial tire bead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102381143A true CN102381143A (en) | 2012-03-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102704985A Pending CN102381143A (en) | 2010-09-02 | 2010-09-02 | Reinforcing structure for all-steel cross-country radial tire bead |
Country Status (1)
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| CN (1) | CN102381143A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103213461A (en) * | 2013-04-03 | 2013-07-24 | 大连轮胎厂有限公司 | Enhanced truck all steel wire radial tire |
| CN104002618A (en) * | 2013-02-22 | 2014-08-27 | 住友橡胶工业株式会社 | Inflatable tire |
| CN104723803A (en) * | 2013-12-24 | 2015-06-24 | 北京橡胶工业研究设计院 | Reinforced tire bead of all-steel large engineering radial tire |
| CN106739838A (en) * | 2016-12-30 | 2017-05-31 | 青岛双星轮胎工业有限公司 | Military all steel tubeless meridian tire |
| CN110525133A (en) * | 2019-09-18 | 2019-12-03 | 湖北奥莱斯轮胎股份有限公司 | A kind of all-steel load-bearing radial tubeless tyre bead new structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078691A (en) * | 1992-04-06 | 1993-11-24 | 固特异轮胎和橡胶公司 | Gas-filled radial ply tyre with non-metallic gasket |
| CN201275989Y (en) * | 2008-09-25 | 2009-07-22 | 风神轮胎股份有限公司 | Radial tire deadblow out portion reinforcing structure of all-steel load radial tire |
| CN201849259U (en) * | 2010-09-02 | 2011-06-01 | 北京橡胶工业研究设计院 | All-steel tyre bead strengthening structure for off-road radial ply tyre |
-
2010
- 2010-09-02 CN CN2010102704985A patent/CN102381143A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078691A (en) * | 1992-04-06 | 1993-11-24 | 固特异轮胎和橡胶公司 | Gas-filled radial ply tyre with non-metallic gasket |
| CN201275989Y (en) * | 2008-09-25 | 2009-07-22 | 风神轮胎股份有限公司 | Radial tire deadblow out portion reinforcing structure of all-steel load radial tire |
| CN201849259U (en) * | 2010-09-02 | 2011-06-01 | 北京橡胶工业研究设计院 | All-steel tyre bead strengthening structure for off-road radial ply tyre |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002618A (en) * | 2013-02-22 | 2014-08-27 | 住友橡胶工业株式会社 | Inflatable tire |
| CN103213461A (en) * | 2013-04-03 | 2013-07-24 | 大连轮胎厂有限公司 | Enhanced truck all steel wire radial tire |
| CN103213461B (en) * | 2013-04-03 | 2016-08-17 | 大连轮胎厂有限公司 | Reinforced load-carrying whole steel wire radial tyre |
| CN104723803A (en) * | 2013-12-24 | 2015-06-24 | 北京橡胶工业研究设计院 | Reinforced tire bead of all-steel large engineering radial tire |
| CN106739838A (en) * | 2016-12-30 | 2017-05-31 | 青岛双星轮胎工业有限公司 | Military all steel tubeless meridian tire |
| CN110525133A (en) * | 2019-09-18 | 2019-12-03 | 湖北奥莱斯轮胎股份有限公司 | A kind of all-steel load-bearing radial tubeless tyre bead new structure |
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Application publication date: 20120321 |