CN209972071U - All-steel radial tire - Google Patents
All-steel radial tire Download PDFInfo
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- CN209972071U CN209972071U CN201920454353.7U CN201920454353U CN209972071U CN 209972071 U CN209972071 U CN 209972071U CN 201920454353 U CN201920454353 U CN 201920454353U CN 209972071 U CN209972071 U CN 209972071U
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Abstract
An all-steel radial tire comprises a tire bead, a tire side, a tire shoulder and a tire crown, wherein the tire bead comprises an inner liner, a tire body cord fabric layer, an inner aramid cord fabric layer, an outer aramid cord fabric layer, a steel cord fabric reinforcing layer, a seam allowance abrasion-resistant adhesive layer, an upper triangular rubber core, a lower triangular rubber core and a rubber ring steel wire; the inboard aramid cord fabric include inboard outer aramid cord fabric and inboard inner aramid cord fabric, this tire is resistant to buckling deformation to radial tire bead that has better support performance promotes durability.
Description
Technical Field
The utility model belongs to the technical field of the tire technique and specifically relates to an all-steel radial tire has an all-steel radial tire of high bearing capacity.
Background
The tire bead structure of the existing all-steel radial tire comprises a hard bead filler core on the inner side, a soft bead filler core on the outer side, a tire body cord fabric, a bead reinforcing steel wire cord fabric, bead filler, sidewall filler, a nylon cord fabric and an inner liner. Because the current road condition management is not standard, and the vehicle is often overloaded seriously, the air pressure is higher and other use conditions, the requirement on the tire of the vehicle is higher. As a structure of a common tire, the tire bead structure of the tire has insufficient support performance and large deformation, and is bent on a rim flange, and the reversely wrapped tire body cord fabric and the bead opening reinforcing steel wire cord fabric at the position near the rim flange area are compressed and deformed to easily form stress concentration, so that the quality problems of empty rim, ring crack, explosion and the like of the tire are caused.
Disclosure of Invention
An object of the utility model is to provide an all steel radial tire, this tire are resistant to warping and warping to radial tire bead that has better support performance promotes durability.
The utility model provides a technical scheme that its technical problem adopted is: the all-steel radial tire comprises a tire bead, a tire side, a tire shoulder and a tire crown, wherein the tire bead comprises an inner liner (a), a tire body ply (b), an inner aramid fiber ply, an outer aramid fiber ply, a steel cord fabric reinforcing layer (e), a seam wear-resistant adhesive layer (k), an upper triangular rubber core (g), a lower triangular rubber core (h) and a rubber ring steel wire (l), the tire body ply (b) is reversely wrapped by the rubber ring steel wire (l), a steel cord fabric reinforcing layer (e) is arranged on the outer side of the tire bead, the inner aramid fiber ply is arranged on the outer layer of the steel cord fabric reinforcing layer (e) at the inner side end of the tire bead, and the outer aramid fiber ply is arranged on the outer side end of the steel cord fabric reinforcing layer (e); the inner aramid cord fabric layer comprises an inner outer aramid cord fabric layer (c) and an inner aramid cord fabric layer (d), the outer aramid cord fabric layer comprises an outer inner aramid cord fabric layer (i) and an outer aramid cord fabric layer (j), the outer aramid cord fabric layer (i) is half-wrapped with rubber ring steel wires (L) and is L-shaped in cross section, and the lower end point of the outer aramid cord fabric layer (j) is positioned above the rubber ring steel wires (L); the outer end point of the steel cord reinforced layer (e) is lower than the outer end point of the carcass ply (b), and the inner end point of the steel cord reinforced layer (e) is higher than the outer end point of the carcass ply (b).
Preferably, the distance between the upper end point of the outer side inner aramid fiber cord fabric layer (i) and the turn-up end point of the carcass cord fabric layer (b) is 30-35 mm, and the lower end point of the outer side inner aramid fiber cord fabric layer (i) is located at the bottom center of the rubber ring steel wire (l).
Optimally, the width of the aramid cord fabric of the outer-side inner-layer aramid cord fabric layer (i) is 135-145 mm, and the angle is 35-55 degrees.
Preferably, the width of the aramid cord fabric of the outer aramid cord fabric layer (j) is 70-90 mm, and the angle is 125-145 degrees.
Preferably, the inner end point of the steel cord reinforced layer (e) is covered by the inner outer aramid cord layer (c), the distance between the upper end point of the inner outer aramid cord layer (c) and the inner end point of the steel cord reinforced layer (e) is 30-35 mm, and the lower end point of the inner outer aramid cord layer (c) is 0-5mm below a large deformation area.
Optimally, the width of the aramid cord fabric layer (c) on the inner outer layer is 70-85 mm, and the angle is 35-55 degrees.
As optimization, the cutting angle of the aramid cord fabric layer (d) on the inner side and the cutting angle of the aramid cord fabric layer (d) on the outer side are 35-55 degrees, and the angle of the aramid cord fabric layer (c) on the inner side and the cutting angle of the aramid cord fabric layer on the outer side are 125-145.
Preferably, a high-performance isolating rubber sheet is additionally attached between the upper end point of the steel cord reinforced layer (e) and the carcass ply (b).
Preferably, the wirecord fabric rolling density of the wirecord fabric reinforcing layer (e) is 45-55 threads/100 mm.
Preferably, an outer inner aramid cord fabric layer (i) is arranged on the outer side of the steel cord reinforced layer (e), and the outer inner aramid cord fabric layer (i) covers the outer end point of the steel cord reinforced layer (e) and the turn-up end point of the carcass fabric layer (b).
As optimization, the inner outer aramid cord layer (c), the inner aramid cord layer (d), the outer inner aramid cord layer (i) and the outer aramid cord layer (j) are formed by two aramid fiber reinforced materials, and the upper end and the lower end of the two aramid fiber reinforced materials are arranged in a staggered mode respectively.
As optimization, the inner part of the carcass ply (b) is wrapped with an upper triangular rubber core (g) and a lower triangular rubber core (h), and the inner part of the lower end of the lower rubber core (h) is penetrated with a rubber ring steel wire (l).
The utility model has the advantages that: compared with the prior art, the all-steel radial tire of the utility model adopts a specially designed three-composite rubber core structure, can effectively improve the supporting performance of the tire bead position, and effectively improve the bending rigidity of the tire bead position under the condition of high load; the tire bead is characterized in that the tire bead is supported by adopting two layers of aramid cord threads to be crossed and attached at the inner side and adopting the bead reinforcing steel wire cord fabric to support the tire body cord fabric at the outer side, and the stress of the end points is dispersed and the bead hard rubber thickness is adjusted by the crossed and attached two layers of aramid cord threads, so that the supporting performance of the tire bead is further improved, the bending rigidity of the tire bead under the high-load condition is improved, and the damage of stress concentration to the tire bead is reduced.
Drawings
FIG. 1 is a general structure diagram of the present invention;
FIG. 2 is a partial enlarged view of the tire bead of the present invention;
FIG. 3 is an enlarged view of the large deformation area of the present invention;
the tire comprises an inner liner layer a, a carcass ply layer b, an inner outer aramid ply layer c, an inner aramid ply layer d, a steel wire cord reinforced layer e, a tire side glue layer f, an upper triangular rubber core g, a lower triangular rubber core h, an outer aramid ply layer i, an outer aramid ply layer j, a bead wear-resistant glue layer k, a rubber ring steel wire l and a large deformation area m.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The all-steel radial tire comprises a tire bead, a tire side, a tire shoulder and a tire crown, wherein the tire bead comprises an inner liner (a), a tire body ply (b), an inner aramid fiber ply, an outer aramid fiber ply, a steel cord fabric reinforcing layer (e), a seam wear-resistant adhesive layer (k), an upper triangular rubber core (g), a lower triangular rubber core (h) and a rubber ring steel wire (l), the tire body ply (b) is reversely wrapped by the rubber ring steel wire (l), a steel cord fabric reinforcing layer (e) is arranged on the outer side of the tire bead, the inner aramid fiber ply is arranged on the outer layer of the steel cord fabric reinforcing layer (e) at the inner side end of the tire bead, and the outer aramid fiber ply is arranged on the outer side end of the steel cord fabric reinforcing layer (e); the inner aramid cord fabric layer comprises an inner outer aramid cord fabric layer (c) and an inner aramid cord fabric layer (d), the outer aramid cord fabric layer comprises an outer inner aramid cord fabric layer (i) and an outer aramid cord fabric layer (j), the outer aramid cord fabric layer (i) is half-wrapped with rubber ring steel wires (L) and is L-shaped in cross section, and the lower end point of the outer aramid cord fabric layer (j) is positioned above the rubber ring steel wires (L); the outer end point of the steel cord reinforced layer (e) is lower than the outer end point of the carcass ply (b), and the inner end point of the steel cord reinforced layer (e) is higher than the outer end point of the carcass ply (b).
Preferably, the distance between the upper end point of the outer side inner aramid fiber cord fabric layer (i) and the turn-up end point of the carcass cord fabric layer (b) is 30-35 mm, and the lower end point of the outer side inner aramid fiber cord fabric layer (i) is located at the bottom center of the rubber ring steel wire (l).
Optimally, the width of the aramid cord fabric of the outer-side inner-layer aramid cord fabric layer (i) is 135-145 mm, and the angle is 35-55 degrees.
Preferably, the width of the aramid cord fabric of the outer aramid cord fabric layer (j) is 70-90 mm, and the angle is 125-145 degrees.
Preferably, the inner end point of the steel cord reinforced layer (e) is covered by the inner outer aramid cord layer (c), the distance between the upper end point of the inner outer aramid cord layer (c) and the inner end point of the steel cord reinforced layer (e) is 30-35 mm, and the lower end point of the inner outer aramid cord layer (c) is located below the large deformation area (m) by 0-5 mm. In FIG. 3, the m region of the pattern filling part is a large deformation region
Optimally, the width of the aramid cord fabric layer (c) on the inner outer layer is 70-85 mm, and the angle is 35-55 degrees.
As optimization, the cutting angle of the aramid cord fabric layer (d) on the inner side and the cutting angle of the aramid cord fabric layer (d) on the outer side are 35-55 degrees, and the angle of the aramid cord fabric layer (c) on the inner side and the cutting angle of the aramid cord fabric layer on the outer side are 125-145.
Preferably, a high-performance isolating rubber sheet is additionally attached between the upper end point of the steel cord reinforced layer (e) and the carcass ply (b).
Preferably, the wirecord fabric rolling density of the wirecord fabric reinforcing layer (e) is 45-55 threads/100 mm.
Preferably, an outer inner aramid cord fabric layer (i) is arranged on the outer side of the steel cord reinforced layer (e), and the outer inner aramid cord fabric layer (i) covers the outer end point of the steel cord reinforced layer (e) and the turn-up end point of the carcass fabric layer (b).
As optimization, the inner outer aramid cord layer (c), the inner aramid cord layer (d), the outer inner aramid cord layer (i) and the outer aramid cord layer (j) are formed by two aramid fiber reinforced materials, and the upper end and the lower end of the two aramid fiber reinforced materials are arranged in a staggered mode respectively.
As optimization, the inner part of the carcass ply (b) is wrapped with an upper triangular rubber core (g) and a lower triangular rubber core (h), and the inner part of the lower end of the lower rubber core (h) is penetrated with a rubber ring steel wire (l).
And a seam allowance wear-resistant glue layer (k) is arranged on the outer side of the outer aramid fiber cord fabric layer (j).
The tire body cord fabric (b) has the end point height L1, the outer end point height L2 of the bead reinforcing wire cord fabric e, the inner end point height L3 of the bead reinforcing wire cord fabric e and the root thickness L4 of the lower triangular rubber core h, and the rigidity of the whole tire bead can be improved by optimizing the sizes of L1, L2 and L3 and the size of L4. Preferably, the endpoint height L1 of the carcass ply b is: 70mm-90mm, the height L2 of the outer end point of the steel cord reinforced layer e is as follows: 30mm-50mm, 70-120mm of inner endpoint, and the base width L4 of the lower triangular rubber core h is 22mm-27 mm. The tire crown is wound by using the zero-degree aramid crown strip, the rigidity of the tire can be obviously increased in a relevant machine tool endurance test through the adjusted tire, the machine tool endurance is improved from 80 hours at the beginning to 137 hours at the later stage, and the rigidity of the whole tire bead can be improved by improving the height L1-L3 and the width L4.
In this embodiment, an inner outer aramid cord layer (c) and an inner aramid cord layer (d) are additionally attached between the inner liner layer a and the carcass cord layer b and the steel cord reinforced layer e, the angle between the inner outer aramid cord layer (c) and the inner aramid cord layer (d) is 35-55 degrees (the angle is the angle between the cord direction and the vertical direction), the width is 80-120 mm, the inner layer and the outer layer are staggered and laminated in a 10-15 mm cross mode, the inner outer aramid cord layer (c) and the inner aramid cord layer (d) wrap the upper end of the carcass cord layer b and the bead reinforced steel cord layer e on the inner side of the bead, and the position of the lower end point of the inner outer aramid cord layer (c) and the inner aramid cord layer (d) is 10-30 mm away from the widest point of the bead.
In this embodiment, a sidewall rubber layer f, an outer-side inner aramid fiber cord layer (i) and an outer-side outer aramid fiber cord layer (j) are additionally attached between the bead wear-resistant rubber layer k and the outer carcass cord layer b and the steel cord reinforced layer e, the angle between the outer-side inner aramid fiber cord layer (i) and the outer-side outer aramid fiber cord layer (j) is 35-55 degrees (the angle is the angle of an included angle between the direction of the cord and the vertical direction), the width is 80-130 mm, the inner layer and the outer layer are staggered and 10-15 mm in difference level for cross attachment, the double-layer aramid fiber cord covers the bead steel cord reinforced layer e and the upper end of the carcass cord layer b outside the bead, and the position of the upper end point of the outer-side inner aramid fiber cord layer (i) and the upper end of the outer-side aramid fiber cord.
In the embodiment, the outer side of the tire bead adopts a structure that a steel cord reinforced layer e supports a carcass ply b, and the distance between the upper end point of the steel cord reinforced layer e and the upper end point of the carcass ply b is 20-30 mm.
Additionally, the utility model discloses the extreme point height range of adjustment rim of mouth wearing layer k and side wall glue film f is 50mm-110mm, and rim flange region tire bead position thickness is 38mm-44mm, can effectively reduce bending deformation.
And a double-layer aramid cord fabric is adhered between the sidewall rubber and the carcass ply and the steel cord fabric reinforcing layer outside the tire bead, and the upper end of the carcass ply and the steel cord fabric reinforcing layer outside the tire bead. The scheme can effectively avoid early damage caused by stress concentration of the end point.
In order to further improve the supporting performance of the bead position of the tire and improve the bending rigidity of the tire bead position under the condition of high load, the bead reinforcing steel wire cord fabric supports the tire body cord fabric on the outer side of the tire bead.
The height ranges of the end points of the side rubber layer and the bead opening wear-resistant rubber layer are 60mm-100mm, and the thickness of the tire bead position in the rim flange area is 40mm-45 mm. The bending deformation can be reduced by adjusting the height of the end points of the sub-opening rubber and the side wall rubber and increasing the thickness of the tire bead position in the rim flange area.
The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but not limited to the product form and style of the above embodiments, any suitable changes or modifications to the device by those of ordinary skill in the art that are consistent with the present invention should fall into the protection scope of the present invention.
Claims (10)
1. The utility model provides an all steel radial tire, includes tire bead, side wall, tire shoulder and child hat, its characterized in that: the tire bead comprises an inner liner (a), a tire body cord fabric layer (b), an inner aramid cord fabric layer, an outer aramid cord fabric layer, a steel cord fabric reinforcing layer (e), a seam allowance wear-resistant adhesive layer (k), an upper triangular rubber core (g), a lower triangular rubber core (h) and a rubber ring steel wire (l), wherein the tire body cord fabric layer (b) is reversely wrapped with the rubber ring steel wire (l), the outer side of the tire body cord fabric layer (b) is provided with the steel cord fabric reinforcing layer (e), the inner aramid cord fabric layer is arranged at the inner side end of the tire bead on the outer layer of the steel cord fabric reinforcing layer (e), and the outer aramid cord fabric layer is arranged at the outer side end of the steel cord fabric; the inner aramid cord fabric layer comprises an inner outer aramid cord fabric layer (c) and an inner aramid cord fabric layer (d), the outer aramid cord fabric layer comprises an outer inner aramid cord fabric layer (i) and an outer aramid cord fabric layer (j), the outer aramid cord fabric layer (i) is half-wrapped with rubber ring steel wires (L) and is L-shaped in cross section, and the lower end point of the outer aramid cord fabric layer (j) is positioned above the rubber ring steel wires (L); the outer end point of the steel cord reinforced layer (e) is lower than the outer end point of the carcass ply (b), and the inner end point of the steel cord reinforced layer (e) is higher than the outer end point of the carcass ply (b).
2. An all-steel radial tire according to claim 1, characterized in that: the distance between the upper end point of the outer side inner aramid fiber cord layer (i) and the turn-up end point of the carcass cord layer (b) is 30-35 mm, and the lower end point of the outer side inner aramid fiber cord layer (i) is located at the bottom center of the rubber ring steel wire (l).
3. An all-steel radial tire according to claim 1, characterized in that: the width of the aramid cord fabric of the outer-side inner-layer aramid cord fabric layer (i) is 135-145 mm, and the angle is 35-55 degrees.
4. An all-steel radial tire according to claim 1, characterized in that: the width of the aramid cord fabric of the outer aramid cord fabric layer (j) at the outer side is 70-90 mm, and the angle is 125-145 degrees.
5. An all-steel radial tire according to claim 1, characterized in that: the inner end point of the steel cord fabric reinforcing layer (e) is covered by the inner side outer aramid cord layer (c), the distance between the upper end point of the inner side outer aramid cord layer (c) and the inner end point of the steel cord fabric reinforcing layer (e) is 30-35 mm, and the lower end point of the inner side outer aramid cord layer (c) is located 0-5mm below the large deformation area (m).
6. An all-steel radial tire according to claim 1, characterized in that: the width of the aramid cord fabric layer (c) on the inner outer layer is 70-85 mm, and the angle is 35-55 degrees.
7. An all-steel radial tire according to claim 1, characterized in that: the cutting angle of the aramid cord fabric layer (d) on the inner side and the inner layer is 35-55 degrees, and the angle of the aramid cord fabric layer (c) on the outer layer on the inner side is 125-145 degrees.
8. An all-steel radial tire according to claim 1, characterized in that: and a high-performance isolating rubber sheet is additionally attached between the upper end point of the steel cord fabric reinforcing layer (e) and the carcass ply (b).
9. An all-steel radial tire according to claim 1, characterized in that: the calendering density of the steel cord fabric reinforcing layer (e) is 45-55 pieces/100 mm.
10. An all-steel radial tire according to claim 1, characterized in that: the outer side of the steel wire cord fabric reinforcing layer (e) is provided with an outer side inner aramid cord fabric layer (i), and the outer end point of the steel wire cord fabric reinforcing layer (e) and the turn-up end point of the carcass fabric layer (b) are covered by the outer side inner aramid cord fabric layer (i).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454353.7U CN209972071U (en) | 2019-04-04 | 2019-04-04 | All-steel radial tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454353.7U CN209972071U (en) | 2019-04-04 | 2019-04-04 | All-steel radial tire |
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| Publication Number | Publication Date |
|---|---|
| CN209972071U true CN209972071U (en) | 2020-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920454353.7U Active CN209972071U (en) | 2019-04-04 | 2019-04-04 | All-steel radial tire |
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| CN (1) | CN209972071U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878274A (en) * | 2019-04-04 | 2019-06-14 | 山东华盛橡胶有限公司 | A kind of all-steel radial tyre |
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2019
- 2019-04-04 CN CN201920454353.7U patent/CN209972071U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109878274A (en) * | 2019-04-04 | 2019-06-14 | 山东华盛橡胶有限公司 | A kind of all-steel radial tyre |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Heda (Shandong) Rubber Technology Co.,Ltd. Assignor: SHANDONG HUASHENG RUBBER Co.,Ltd. Contract record no.: X2022980022349 Denomination of utility model: An all steel radial tire Granted publication date: 20200121 License type: Common License Record date: 20221130 |