Low-heat-generation fatigue-resistant ring portion structure

Abstract

The utility model relates to the technical field of tire bead structure, and disclose a kind of low heat generation fatigue bead structure, including sidewall rubber and wear-resistant glue, the sidewall rubber and wear-resistant glue are fixedly connected, the inner surface of the sidewall rubber is bonded with carcass, the inner side of the wear-resistant glue is attached with the steel wire wrapping cloth located in the inner side of carcass, the outer surface of the steel wire wrapping cloth is attached with steel wire wrapping cloth endpoint protective glue.The utility model is by being provided with steel wire wrapping cloth endpoint protective glue, soft triangle rubber, steel wire wrapping cloth and hard triangle rubber, wherein the inner endpoint height of steel wire wrapping cloth increases, supports tire bead, improves the rigidity of bead structure whole, and increases protective rubber strip at endpoint, buffers endpoint stress and plays adhesive effect, then by optimizing wear-resistant glue height and volume, effectively reduce the heat generation of bead material, reduce the risk of bead crack even ring crack, compared with the prior art tire bead structure, with the advantage of low heat generation fatigue.

Description

Technical Field

[0001] This utility model relates to the field of tire bead structure technology, and more specifically, to a bead structure with low heat generation and fatigue resistance. Background Technology

[0002] The tire bead is the core sealing component that contacts the tire and the rim. It is formed by winding rubber-coated steel wires in a specific arrangement and is firmly bonded to the tire carcass ply through a vulcanization process. Its triangular rubber core design ensures an interference fit with the rim, combining high rigidity support and dynamic airtightness. It resists centrifugal deformation and maintains stable tire pressure during vehicle operation, making it a key structure for ensuring tire safety performance.

[0003] In the process of repeated lifting and touching down, the existing tire bead structure is subjected to tensile and compressive fatigue, and the bead temperature rises. Under the combined action of external load, air pressure and temperature, the rubber molecular chains break, resulting in the initiation and growth of cracks, which manifest as bead cracks. In severe cases, bead cracks may occur. Therefore, it is necessary to improve it. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a ring structure with low heat generation and fatigue resistance, which has the advantages of low heat generation and fatigue resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a low-heat-generating and fatigue-resistant bead structure, comprising a sidewall rubber and a wear-resistant rubber, wherein the sidewall rubber and the wear-resistant rubber are fixedly connected, the inner surface of the sidewall rubber is bonded to the tire body, the inner side of the wear-resistant rubber is fitted with a steel wire cloth located inside the tire body, and the outer surface of the steel wire cloth is fitted with a steel wire cloth end protector.

[0006] As a preferred embodiment of this utility model, the inner side of the sidewall rubber is filled with soft triangular rubber, and the outer surface of the soft triangular rubber is bonded to the tire body.

[0007] As a preferred embodiment of this utility model, a hard triangular adhesive is attached to the lower surface of the soft triangular adhesive, and the outer surface of the hard triangular adhesive is fixedly connected to the inner surface of the tire body.

[0008] As a preferred embodiment of this utility model, a tire bead is fixedly connected to the inner surface of the hard triangular rubber, and the tire bead is made of high carbon steel wire.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This invention incorporates a steel wire-wrapped end protectant, a soft triangular adhesive, a steel wire wrap, and a hard triangular adhesive. The increased height of the inner end of the steel wire wrap provides support for the tire bead, enhancing the overall rigidity of the bead structure. Protective strips are added to the end points to buffer stress and provide adhesion. Furthermore, by optimizing the height and volume of the wear-resistant adhesive, heat generation in the bead material is effectively reduced, lowering the risk of bead cracks and even bead breakage. Compared to existing bead structures, this invention offers advantages such as low heat generation and fatigue resistance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the tire bead structure of this utility model.

[0012] In the picture: 1. Sidewall rubber; 2. Steel wire wrapping end protection rubber; 3. Soft triangular rubber; 4. Abrasion-resistant rubber; 5. Tire body; 6. Steel wire wrapping; 7. Hard triangular rubber; 8. Tire bead. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] like Figure 1 As shown, this utility model provides a low-heat-generating and fatigue-resistant bead structure, including a sidewall rubber 1 and a wear-resistant rubber 4, which are fixedly connected. The inner surface of the sidewall rubber 1 is bonded to the tire body 5, and the inner side of the wear-resistant rubber 4 is bonded to a steel wire cloth 6 located inside the tire body 5. The outer surface of the steel wire cloth 6 is bonded to a steel wire cloth end protectant 2.

[0015] By increasing the height of the inner end of the steel wire wrapping fabric 6 and setting the steel wire wrapping fabric end protective rubber 2 at the inner end position, the rigidity of the tire bead can be effectively improved, the stress on the bead can be distributed, and by optimizing the shape and volume of the wear-resistant rubber 4, the heat generation of the entire bead can be reduced, thereby reducing the risk of bead cracks or even bead breakage.

[0016] The inner side of the sidewall rubber 1 is filled with soft triangular rubber 3, and the outer surface of the soft triangular rubber 3 is bonded to the tire body 5.

[0017] The soft triangle rubber 3 has a relatively soft texture, which can act as a cushion.

[0018] Among them, the lower surface of the soft triangular rubber 3 is attached to the hard triangular rubber 7, and the outer surface of the hard triangular rubber 7 is fixedly connected to the inner surface of the tire body 5.

[0019] Hard triangle rubber 7 is made of a high-hardness, high-elongation rubber compound and is responsible for bearing the tension from the tire carcass.

[0020] Among them, the inner surface of the hard triangular rubber 7 is fixedly connected to the tire bead 8, which is made of high carbon steel wire.

[0021] The bead 8 can be tightly fitted into the bead seat of the rim, ensuring that the high-pressure air inside the tire does not leak out through the gaps.

[0022] Working principle and usage process of this utility model:

[0023] By increasing the height of the inner end of the steel wire wrap 6, the tire bead support capacity is improved. At the same time, the steel wire wrap end protective adhesive 2 set at the inner end of the steel wire wrap 6 can effectively buffer the stress on the inner end of the steel wire wrap 6, and can also play a role in adhesion and fixation.

[0024] Compared to traditional tire bead, by optimizing and reducing the volume and size of the wear-resistant rubber 4, the heat generation of the wear-resistant rubber 4 is effectively reduced, the overall service life of the wear-resistant rubber 4 is extended, and the possibility of cracks or even bead cracks in the entire bead under the combined action of external load, air pressure and temperature is reduced.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Standard parts used in this invention are all commercially available, and custom-shaped parts can be made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, and the circuit connections and system control methods also adopt conventional connection methods in the prior art, which will not be detailed here.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-heat-generating, fatigue-resistant bead structure, comprising sidewall rubber (1) and wear-resistant rubber (4), characterized in that: The sidewall rubber (1) and the wear-resistant rubber (4) are fixedly connected. The inner surface of the sidewall rubber (1) is bonded with the tire body (5). The inner side of the wear-resistant rubber (4) is bonded with a steel wire cloth (6) located inside the tire body (5). The outer surface of the steel wire cloth (6) is bonded with steel wire cloth end protectant (2).

2. The low-heat-generating, fatigue-resistant ring structure according to claim 1, characterized in that: The inner side of the sidewall rubber (1) is filled with soft triangular rubber (3), and the outer surface of the soft triangular rubber (3) is bonded to the tire body (5).

3. The low-heat-generating, fatigue-resistant ring structure according to claim 2, characterized in that: The lower surface of the soft triangular rubber (3) is attached with a hard triangular rubber (7), and the outer surface of the hard triangular rubber (7) is fixedly connected to the inner surface of the tire body (5).

4. The low-heat-generating, fatigue-resistant ring structure according to claim 3, characterized in that: The inner surface of the hard triangular rubber (7) is fixedly connected with a tire bead (8), which is made of high carbon steel wire.

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