CN112026450A - All-steel radial tire bead structure - Google Patents
All-steel radial tire bead structure Download PDFInfo
- Publication number
- CN112026450A CN112026450A CN202010917273.8A CN202010917273A CN112026450A CN 112026450 A CN112026450 A CN 112026450A CN 202010917273 A CN202010917273 A CN 202010917273A CN 112026450 A CN112026450 A CN 112026450A
- Authority
- CN
- China
- Prior art keywords
- bead
- core
- tire
- carcass ply
- rubber core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011324 bead Substances 0.000 title claims abstract description 64
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 35
- 239000010959 steel Substances 0.000 title claims abstract description 35
- 239000000945 filler Substances 0.000 claims abstract description 21
- 230000007704 transition Effects 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 5
- 230000020169 heat generation Effects 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 2
- 239000011159 matrix material Substances 0.000 claims 4
- 239000002390 adhesive tape Substances 0.000 claims 2
- 238000000465 moulding Methods 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/04—Bead cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0614—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the chafer or clinch portion, i.e. the part of the bead contacting the rim
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C15/00—Tyre beads, e.g. ply turn-up or overlap
- B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
- B60C2015/0617—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a cushion rubber other than the chafer or clinch rubber
- B60C2015/0625—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a cushion rubber other than the chafer or clinch rubber provided at the terminal edge portion of a carcass or reinforcing layer
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Abstract
The invention relates to an all-steel radial tire bead structure, which comprises an apex rubber core for filling a gap between a carcass ply turn-up part wrapped around a bead ring and an inner carcass ply, wherein the carcass ply is wrapped outside the apex rubber core, a steel wire bead is wrapped outside the carcass ply structure, a molding compound is further arranged between the steel wire bead and the carcass ply, and the apex rubber core comprises a first apex rubber core, a third apex rubber core and a second apex rubber core, wherein the first apex rubber core and the third apex rubber core are positioned close to the end surface part of the bead structure, and the second apex rubber core is arranged in a transition manner; and a steel ring is arranged at the bottom of the third triangular tire core, and a bead filler rubber and an outer layer sidewall rubber are arranged at the outer side of the tire bead structure. The invention solves the problem that the bead part is easy to generate excessive heat and easy to crack and fall off, improves the bearing capacity and the service life of the tire, and further improves the safety performance of the tire.
Description
Technical Field
The invention belongs to the technical field of tires, and particularly relates to an all-steel radial tire bead structure.
Background
With the development of tire science and technology, the safety performance of tires is more and more emphasized. The possibility of accidents is reduced and the design of the TBR tire is placed at the head. On the other hand, on a TBR tire, the tire bead part has the characteristics of high heat generation, easiness in damage and the like due to the influence of tire load and speed, and is a part with multiple accidents.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a novel combination mode of apex, steel ring and seam allowance reinforcing layer. The original all-steel radial ply wheel apex is generally in a single composite or double composite (namely, two sizing materials are compounded) form, and a gap between a reversed wrapping part of a tire body cord fabric wrapped around a steel wire ring and an inner tire body cord fabric is filled in a triple composite (namely, three sizing materials are compounded) form. On a TBR tire, the ends of the tire body cord fabric and the steel wire opening wrapping cloth move under the influence of the internal movement of the tire, so that the TBR tire is a part with a plurality of accidents, and a steel wire ring and a bead filler play a great role in preventing the accidents.
Specifically, an all steel radial tire bead structure which characterized in that:
the tire bead structure comprises a bead reinforcement layer and an apex rubber core,
the bead filler core is filled in a gap between a turned-up part of a carcass ply and an inner carcass ply, which are wrapped around the bead ring, and comprises a first bead filler core positioned close to the end surface part of the bead structure, a third bead filler core positioned inside the bead structure, and a second bead filler core arranged in a transition manner between the first bead filler core and the third bead filler core and close to the turned-up side of the carcass ply; a steel ring is arranged at the bottom of the third triangular tire core;
the bead reinforcing layer comprises an outer side section of a carcass ply, a profile rubber strip and an outer section of a steel wire bead, the carcass ply is wrapped outside the triangular rubber core, the steel wire bead is wrapped outside the carcass ply structure, the profile rubber strip is further arranged between the steel wire bead and the carcass ply, the bead protective rubber and the outer sidewall rubber are further arranged on the outer side of the tire bead structure, wear-resistant rubber is arranged at the intersection between the bead protective rubber and the outer sidewall rubber, and the wear-resistant rubber is partially wrapped on the periphery of the steel wire bead.
Further, the first apex rubber core adopts a rubber material with medium hardness and good flexibility resistance.
Further, the second apex is made of a compound having a normal hardness but low heat build.
Further, the third apex rubber adopts a rubber compound with high hardness.
Has the advantages that:
1. the transition between the hardness of the rubber material and the physical property of the material is more uniform and mild, and the bonding strength between the rubber materials is higher.
2. The newly added second triangular rubber core is combined with the reverse wrapping part of the tire body cord fabric, so that the stress of the part is buffered better, the heat generation is reduced, the bearing performance of the tire is improved, and the service life of the tire is prolonged.
The invention solves the problem that the bead part is easy to generate excessive heat and easy to crack and fall off, improves the bearing capacity and the service life of the tire, and further improves the safety performance of the tire.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, common embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention.
Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1: the bead structure of the all-steel radial tire comprises a bead rim reinforcing layer and an apex rubber core,
the bead filler core is filled in a gap between a turned-up part of a carcass ply and an inner carcass ply, which are wrapped around the bead ring, and comprises a first bead filler core 1 positioned close to the end surface part of the bead structure, a third bead filler core 3 positioned in the bead structure, and a second bead filler core 2 arranged in a transition manner between the first bead filler core 1 and the third bead filler core and close to the turned-up side of the carcass ply; a steel ring 4 is arranged at the bottom of the third triangular tire core;
the first apex 1 is made of a rubber material with medium hardness and good flexibility resistance. The first apex 1 is energy absorbing and requires moderate hardness and good flex resistance
The second bead filler 2 is arranged on one side close to the turn-up of the carcass ply, and is required to wrap the turn-up part of the carcass ply, and a sizing material with common hardness and low heat generation is adopted. Play the roles of the transition of the triangles 1 and 3 and the buffer of the steel wire part.
The third triangular rubber core 3 plays a role in fixing the steel wire ring and the tire cord fabric, simultaneously improves the integral strength of the tire bead part, and requires high-hardness rubber to play a supporting role.
Wherein the rim of a mouth enhancement layer includes carcass ply 5's outside section, molding strip 10 and the 6 outside sections of steel wire rim of a mouth, the outside parcel of apex core has carcass ply 5, the outside parcel of carcass ply 5 structure has steel wire rim of a mouth 6, wherein still be provided with molding strip 10 between steel wire rim of a mouth and the carcass ply 5, bead structure outside position still is provided with the rim of a mouth and protects gluey 7 and outer sidewall rubber 8, the rim of a mouth protects crossing department between gluey 7 and the outer sidewall rubber 8 and is provided with wear-resisting glue 9, wear-resisting glue 9 part parcel steel wire rim of a mouth 6 periphery.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modification, change and equivalent changes of the above embodiments according to the principles of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides an all steel radial tire bead structure which characterized in that:
the tire bead structure comprises a bead reinforcement layer and an apex rubber core,
the bead filler core is filled in a gap between a turned-up part of a carcass ply and an inner carcass ply, which are wrapped around a bead ring, and comprises a first bead filler core (1) which is positioned close to the end surface part of a bead structure, a third bead filler core (3) which is positioned inside the bead structure, and a second bead filler core (2) which is arranged between the first bead filler core and the third bead filler core and is close to the turned-up side of the carcass ply in a transition manner; a steel ring (4) is arranged at the bottom of the third triangular tire core;
wherein the rim of a river enhancement layer includes the outside section of matrix ply (5), type adhesive tape (10) and steel wire rim of a river (6) outside section, the outside parcel of triangle rubber core has matrix ply (5), the outside parcel of matrix ply (5) structure has steel wire rim of a river (6), wherein still be provided with type adhesive tape (10) between steel wire rim of a river and matrix ply (5), bead structure outside position still is provided with the rim of a river and protects gluey (7) and outer child side gum (8), the intersection department between child rim of a river protection glue (7) and outer child side gum (8) is provided with wear-resisting glue (9), the periphery of steel wire rim of a river (6) is wrapped up in to wear-resisting glue (9) part.
2. An all-steel radial tire bead structure according to claim 1, characterized in that:
the first apex rubber core (1) is made of rubber with medium hardness and good flexibility resistance.
3. An all-steel radial tire bead structure according to claim 1, characterized in that:
the second apex (2) is made of a rubber compound having a normal hardness but low heat generation.
4. An all-steel radial tire bead structure according to claim 1, characterized in that:
the third apex (3) adopts a rubber material with high hardness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010917273.8A CN112026450A (en) | 2020-09-03 | 2020-09-03 | All-steel radial tire bead structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010917273.8A CN112026450A (en) | 2020-09-03 | 2020-09-03 | All-steel radial tire bead structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112026450A true CN112026450A (en) | 2020-12-04 |
Family
ID=73592141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010917273.8A Pending CN112026450A (en) | 2020-09-03 | 2020-09-03 | All-steel radial tire bead structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112026450A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116923001A (en) * | 2023-07-21 | 2023-10-24 | 山东华盛橡胶有限公司 | Tire with low rolling resistance and manufacturing method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311752B1 (en) * | 1998-10-08 | 2001-11-06 | Bridgestone Corporation | Pneumatic radial tires with stiffener rubber having hard and soft stiffener rubber members |
| CN102529599A (en) * | 2010-12-22 | 2012-07-04 | 固特异轮胎和橡胶公司 | Tire with optimized apex |
| CN102802967A (en) * | 2009-06-22 | 2012-11-28 | 米其林集团总公司 | Tyre bead for a large goods vehicle |
| JP2014118069A (en) * | 2012-12-18 | 2014-06-30 | Sumitomo Rubber Ind Ltd | Pneumatic tire for heavy load |
| CN104669952A (en) * | 2015-03-09 | 2015-06-03 | 山东玲珑轮胎股份有限公司 | All-steel radial heavy-duty tire |
| CN205292151U (en) * | 2016-01-11 | 2016-06-08 | 德轮橡胶股份有限公司 | Light -duty load rim of mouth of all steel reinforcing radial tire |
| CN109109577A (en) * | 2018-09-05 | 2019-01-01 | 江苏通用科技股份有限公司 | Bearing type tubeless tyre bead structure |
| CN110254143A (en) * | 2019-08-02 | 2019-09-20 | 合肥万力轮胎有限公司 | A kind of bead structure of tire |
-
2020
- 2020-09-03 CN CN202010917273.8A patent/CN112026450A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6311752B1 (en) * | 1998-10-08 | 2001-11-06 | Bridgestone Corporation | Pneumatic radial tires with stiffener rubber having hard and soft stiffener rubber members |
| CN102802967A (en) * | 2009-06-22 | 2012-11-28 | 米其林集团总公司 | Tyre bead for a large goods vehicle |
| CN102529599A (en) * | 2010-12-22 | 2012-07-04 | 固特异轮胎和橡胶公司 | Tire with optimized apex |
| JP2014118069A (en) * | 2012-12-18 | 2014-06-30 | Sumitomo Rubber Ind Ltd | Pneumatic tire for heavy load |
| CN104669952A (en) * | 2015-03-09 | 2015-06-03 | 山东玲珑轮胎股份有限公司 | All-steel radial heavy-duty tire |
| CN205292151U (en) * | 2016-01-11 | 2016-06-08 | 德轮橡胶股份有限公司 | Light -duty load rim of mouth of all steel reinforcing radial tire |
| CN109109577A (en) * | 2018-09-05 | 2019-01-01 | 江苏通用科技股份有限公司 | Bearing type tubeless tyre bead structure |
| CN110254143A (en) * | 2019-08-02 | 2019-09-20 | 合肥万力轮胎有限公司 | A kind of bead structure of tire |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116923001A (en) * | 2023-07-21 | 2023-10-24 | 山东华盛橡胶有限公司 | Tire with low rolling resistance and manufacturing method thereof |
| CN116923001B (en) * | 2023-07-21 | 2024-02-06 | 山东华盛橡胶有限公司 | Tire with low rolling resistance and manufacturing method thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201204 |