All-steel radial brand-new tire with heavy-duty tire bead structure
By designing a new heavy-load bead structural tire with all-steel radial, the quality problems of existing tires in terms of load capacity are solved, and the durability and heavy-load capacity of the bead are improved.
Patent Information
- Application Number
- CN202422285644.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-19
AI Technical Summary
The existing all-steel tires have quality problems such as emptying, cracking, and blasting in terms of load load, which cannot meet the market's demand for heavy load.
A new heavy-load bead structure tire with all-steel radial radial is designed, including sidewall, multi-layer fiber cord, sub-mouth wire wrap cloth, carcass cord, upper triangle glue, lower triangle glue, outer sub-mouth reinforced bead and steel wire ring. Through innovative design and material distribution, the durability of the bead is improved.
By adding multi-layer fiber ply and outer port reinforcement ply, the density and durability of the wire material are improved, the stress at the carcass end points is effectively dispersed, early damage is avoided, and the heavy load capacity of the tire is improved.
Smart Images
Figure CN222987892U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tires, in particular to a steel radial tire with a brand-new heavy-duty bead structure. Background Technique
[0002] At present, the competition in the all-steel market is fierce. Pulling more and running faster has become the current market development trend. In order to meet the market development needs, the structure of the existing technology can no longer meet the market's demand for load. Quality problems such as bead void, bead crack, and burst are likely to occur in tires. Therefore, it is urgent to design a heavy-duty bead for tires. Content of the Utility Model
[0003] (1) Technical Problems to be Solved
[0004] In view of the deficiencies of the existing technology, the utility model provides a steel radial tire with a brand-new heavy-duty bead structure to solve the above technical problems.
[0005] (2) Technical Solutions
[0006] To achieve the above object, the utility model provides the following technical solution: a steel radial tire with a brand-new heavy-duty bead structure, including a bead. The bead is composed of a bead side, two layers of fiber cord fabric, a bead wire wrapper, a carcass ply, an upper triangular rubber, a lower triangular rubber, an outer bead reinforcing cord fabric, and a bead wire. The bead wire wrapper is arranged between the outer fiber cord fabric and the carcass. The carcass is arranged outside the bead wire. A number of steel wires are arranged in the carcass ply. The end point height of the bead wire wrapper is higher than that of the carcass ply.
[0007] Preferably, the upper end point of the fiber cord fabric is 25-50 mm away from the upper end of the carcass ply at the outer side of the bead.
[0008] Preferably, the bead wire wrapper is higher than the carcass ply.
[0009] Preferably, the upper end point of the outer bead reinforcing cord fabric is edge-wrapped with a single layer of fiber cord fabric, and the angle of the single layer of fiber cord fabric is 30-50°.
[0010] Preferably, the hardness of the bead wire is greater than that of the lower triangular rubber, and the hardness of the lower triangular rubber is greater than that of the upper triangular rubber.
[0011] Preferably, there is a strong adhesion between the upper triangular rubber and the carcass ply, and the height of the upper triangular rubber is higher than that of the carcass ply.
[0012] Preferably, the angle of the steel wires in the carcass ply is 90 degrees, and the steel wires are symmetrically distributed.
[0013] Compared with the existing technology, the utility model provides a steel radial tire with a brand-new heavy-duty bead structure, having the following beneficial effects:
[0014] 1. Through innovative design of the structure form and material distribution of the tire bead part, the present utility model improves the bead durability performance. Compared with the prior art, by adding multiple layers of fiber cord fabric and outer bead reinforcing cord fabric, the defects of large density and heavy weight of steel wire materials are improved. The special-shaped groove carcass and the winding method of the bead enable the end point height of the bead wire wrapping cloth to be higher than that of the carcass cord fabric and implement end point protection, effectively dispersing the stress at the carcass end point and avoiding early damage to the carcass end point. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the bead structure of the present utility model.
[0016] Wherein: 1. Sidewall; 2. Fiber cord fabric; 3. Bead wire wrapping cloth; 4. Carcass cord fabric; 5. Lower triangular rubber; 6. Outer bead reinforcing cord fabric; 7. Steel wire ring; 8. Upper triangular rubber. DETAILED IMPLEMENTATION MANNER
[0017] The following further describes in detail the implementation manner of the present utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.
[0018] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0019] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0020] Please refer to Figure 1, a new all-steel radial tire with a new heavy-duty bead structure, including a bead. The bead is composed of a tire side 1, two layers of fiber cord 2, a bead wire wrapper 3, a carcass ply 4, an upper triangular rubber 8, a lower triangular rubber 5, an outer bead reinforcing ply 6 and a bead wire 7. The bead wire wrapper 3 is arranged between the outer fiber cord 2 and the carcass. The carcass is arranged outside the bead wire 7, and several steel wires are arranged inside the carcass ply 4.
[0021] Through innovative design of the tire bead structure form and material distribution, the bead durability performance is improved. Compared with the prior art, by adding the improvement of multiple layers of fiber cord 2 and the outer bead reinforcing ply 6, the defects of large density and heavy weight of the steel wire material are improved. The special carcass shape groove and the winding method of the bead enable the end point height of the bead wire wrapper 3 to be higher than that of the carcass ply 4 and implement end point protection, effectively dispersing the stress at the carcass end point and avoiding the early damage of the carcass end point.
[0022] Specifically, in this embodiment, the upper end point of the fiber cord 2 is 25-50 mm from the upper end of the carcass ply 4 on the outer side of the bead. The upper end point of the outer bead reinforcing ply 6 is wrapped with a single layer of fiber cord 2, and the angle of the single layer of fiber cord 2 is 30-50°. Since the end points of the two layers of fiber cord 2 are both higher than the end point of the carcass ply 4, and the bead wire wrapper 3 is higher than the carcass ply 4, the end point of the carcass ply 4 can be well protected, effectively dispersing the stress at the carcass end point.
[0023] Specifically, in this embodiment, the hardness of the bead wire 7 is greater than that of the lower triangular rubber 5, and the hardness of the lower triangular rubber 5 is greater than that of the upper triangular rubber 8.
[0024] Specifically, in this embodiment, there is a strong adhesion between the upper triangular rubber 8 and the carcass ply 4, and the height of the upper triangular rubber 8 is higher than that of the carcass ply 4.
[0025] Specifically, in this embodiment, the angle of the steel wire in the carcass ply 4 is 90 degrees, and the steel wires are symmetrically distributed.
[0026] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. All-steel radial tire with new heavy-duty bead structure, including bead, characterized by: The tire bead is composed of a sidewall, two layers of fiber cords, a bead steel wire wrap, a carcass cord, an upper apex rubber, a lower apex rubber, an outer bead reinforcing cord and a wire ring. The bead steel wire wrap is arranged between the outer fiber cord and the carcass. The carcass is arranged on the outer side of the wire ring. A plurality of steel wires are arranged in the carcass cord. The end point of the bead steel wire wrap is higher than the end point of the carcass cord.
2. The all-steel radial new heavy-duty tire with bead structure according to claim 1, characterized in that: The upper end point of the fiber cord is 25-50 mm away from the upper end of the carcass cord outside the tire bead.
3. The all-steel radial new heavy-duty tire with bead structure according to claim 1, characterized in that: The sub-mouth steel wire wrapped fabric is higher than the carcass cord fabric.
4. The all-steel radial new heavy-duty tire with bead structure according to claim 1, characterized in that: The upper end point of the outer mouth reinforcement cord is wrapped with a single-layer fiber cord, and the angle of the single-layer fiber cord is 30-50 degrees.
5. The all-steel radial new heavy-duty tire with bead structure according to claim 1, characterized in that: The hardness of the wire ring is greater than that of the lower triangle rubber, and the hardness of the lower triangle rubber is greater than that of the upper triangle rubber.
6. The all-steel radial new heavy-duty tire with bead structure according to claim 1, characterized in that: The upper apex rubber and the carcass cord have a strong adhesive force, and the height of the upper apex rubber is higher than that of the carcass cord.
7. The all-steel radial new heavy-duty tire with bead structure according to claim 1, characterized in that: The angle of the steel wires in the carcass cord is 90 degrees, and the steel wires are symmetrically distributed.