Anti-cracking all-steel radial tire

Abstract

The utility model relates to tire technical field provides a kind of full steel radial tire of anti-cracking, including tread, belt layer, carcass ply, inner liner and airtight layer, the belt layer is set to the inner side of tread, the carcass ply is set to the inner side of belt layer, the inner liner is set to the inner side of carcass ply, inner liner and airtight layer are combined;The inner liner and anti-cracking reinforcing layer between are provided with anti-cracking reinforcing layer, the anti-cracking reinforcing layer is made of a layer of rubber-coated aramid fiber ply.The utility model design is reasonable, by setting anti-cracking reinforcing layer, anti-cracking reinforcing layer is made of aramid fiber material, with very high strength and excellent impact resistance, can effectively prevent external impact caused rubber cracking, and effectively inhibit the crack that has already had continues to expand to deep layer, protects relatively core carcass ply.

Description

Technical Field

[0001] This utility model mainly relates to the field of tire technology, specifically to a crack-resistant all-steel radial tire. Background Technology

[0002] All-steel radial tires are widely used in commercial vehicles such as trucks and buses due to their advantages such as high load-bearing capacity, wear resistance, and fuel efficiency.

[0003] However, when these tires are driven on complex and harsh road conditions (such as gravel roads and construction sites), the sidewalls and bead areas are highly susceptible to impacts and scrapes from sharp objects on the road surface, or cracks caused by excessive flexing leading to rubber aging. Although these cracks are not obvious at first, they will gradually expand and deepen, eventually damaging the internal carcass ply, leading to cord breakage, tire leakage, or even tire blowout, seriously threatening driving safety and shortening tire life. Utility Model Content

[0004] The purpose of this invention is to provide a crack-resistant all-steel radial tire to solve the technical problems existing in the background art.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows: a crack-resistant all-steel radial tire, comprising a tread, a belt layer, a carcass ply, an inner liner, and an airtight layer. The belt layer is disposed on the inner side of the tread, the carcass ply is disposed on the inner side of the belt layer, and the inner liner is disposed on the inner side of the carcass ply. The inner liner and the airtight layer are combined. A crack-resistant reinforcing layer is disposed between the inner liner and the carcass ply, and the crack-resistant reinforcing layer is made of a layer of aramid fiber ply coated with rubber.

[0006] Preferably, the width of the crack-resistant reinforcement layer covers the entire area from the bead portion on one side of the tread to the entire tire on the other side.

[0007] Preferably, sidewalls are provided on both sides of the tire tread.

[0008] Preferably, the outer surface of the tire sidewall is provided with a plurality of anti-friction strips, which are distributed circumferentially along the tire sidewall.

[0009] Preferably, the tire sidewall has a semi-circular structure.

[0010] Preferably, the tire sidewall has an insert opening, and a colored rubber strip is inserted into the insert opening.

[0011] Beneficial effects: Compared with the prior art, this utility model has a reasonable design. By setting a crack-resistant reinforcement layer, which is made of aramid fiber material, it has extremely high strength and excellent impact resistance. It can effectively prevent rubber cracking caused by external impact and effectively inhibit the continued expansion of existing cracks into deeper layers, thus protecting the core tire carcass ply layer. The setting of anti-friction strips, inserts, and colored rubber strips can provide protection for the outer side of the tire. Combined with the crack-resistant reinforcement layer, it forms a double protection from the inside out, comprehensively improving the tire's ability to resist damage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the tire of this utility model; Figure 3 This is a cross-sectional enlarged structural diagram of the anti-friction strip in this utility model.

[0013] Reference numerals: 1. Tread; 2. Belt layer; 3. Carcass ply; 4. Inner liner; 5. Crack-resistant reinforcement layer; 6. Sidewall; 7. Anti-friction strip; 8. Insertion hole; 9. Colored rubber strip. Detailed Implementation

[0014] 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.

[0015] See attached document Figure 1-2 This embodiment proposes a crack-resistant all-steel radial tire, comprising a tread 1, a belt layer 2, a carcass ply 3, an inner liner 4, and an airtight layer. The belt layer 2 is disposed inside the tread 1, the carcass ply 3 is disposed inside the belt layer 2, and the inner liner 4 is disposed inside the carcass ply 3. The inner liner 4 and the airtight layer are combined. A crack-resistant reinforcing layer 5 is disposed between the inner liner 4 and the carcass ply 3. The crack-resistant reinforcing layer 5 is made of a layer of aramid fiber ply coated with rubber. The width of the crack-resistant reinforcing layer 5 covers the entire area from the bead portion on one side of the tread 1 to the entire tire area on the other side.

[0016] It should be noted that the tire structure consists of the tread 1, belt layer 2, and carcass ply layer 3 from the outside to the inside. The innermost part of the tire is the inner liner layer 4. Between the carcass ply layer 3 and the inner liner layer 4, a crack-resistant reinforcement layer 5 is added. The crack-resistant reinforcement layer 5 is made of a layer of aramid fiber ply coated with rubber. The aramid fiber ply is arranged in the same direction as the tire's circular direction. The crack-resistant reinforcement layer 5 covers the entire inner area of ​​the tire, providing comprehensive protection.

[0017] In this embodiment, refer to the appendix Figure 3 Sidewalls 6 are provided on both sides of the tread 1. Several anti-friction strips 7 are provided on the outer surface of the sidewall 6, and the anti-friction strips 7 are distributed circumferentially along the sidewall 6. The sidewall 6 has a semi-circular structure. An insert 8 is provided inside the sidewall 6, and a colored rubber strip 9 is inserted and installed inside the insert 8.

[0018] It should be noted that by setting anti-scratch strips 7 on the outer surface of the tire sidewall 6, it can effectively resist lateral scratches. Colored rubber strips 9 are embedded inside the anti-scratch strips 7. When the anti-scratch strips 7 are worn to a predetermined depth, the colored rubber strips 9 will be exposed, reminding the driver that the sidewall of the tire has been damaged to a certain extent and that more attention should be paid to it and it should be checked in time.

[0019] The working principle of this utility model is as follows: The tire structure consists of a tread 1, a belt layer 2, and a carcass ply layer 3 from the outside to the inside. The innermost part of the tire is the inner liner layer 4. A crack-resistant reinforcement layer 5 is added between the carcass ply layer 3 and the inner liner layer 4. The crack-resistant reinforcement layer 5 is made of a layer of aramid fiber ply coated with rubber. The aramid fiber ply is arranged in the same direction as the tire's circular direction. The crack-resistant reinforcement layer 5 covers the entire inner area of ​​the tire, providing comprehensive protection. By setting anti-friction strips 7 on the outer surface of the tire sidewall 6, it can effectively resist lateral scratches. Colored rubber strips 9 are embedded inside the anti-friction strips 7. When the anti-friction strips 7 are worn to a predetermined depth, the colored rubber strips 9 will be exposed, reminding the driver that the tire sidewall has been damaged to a certain extent and requires more attention and timely inspection.

[0020] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0021] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A crack-resistant all-steel radial tire, characterized in that: The tire includes a tread (1), a belt layer (2), a carcass ply layer (3), an inner liner layer (4), and an airtight layer. The belt layer (2) is located inside the tread (1), the carcass ply layer (3) is located inside the belt layer (2), and the inner liner layer (4) is located inside the carcass ply layer (3). The inner liner layer (4) and the airtight layer are combined. A crack-resistant reinforcing layer (5) is provided between the inner liner layer (4) and the carcass ply layer (3). The crack-resistant reinforcing layer (5) is made of a layer of aramid fiber ply coated with rubber.

2. The crack-resistant all-steel radial tire according to claim 1, characterized in that: The width of the crack-resistant reinforcement layer (5) covers the entire area from the bead portion on one side of the tread (1) to the entire tire on the other side.

3. The crack-resistant all-steel radial tire according to claim 2, characterized in that: Sidewalls (6) are provided on both sides of the tread (1).

4. A crack-resistant all-steel radial tire according to claim 3, characterized in that: The outer surface of the tire sidewall (6) is provided with several anti-friction strips (7), which are distributed circumferentially along the tire sidewall (6).

5. A crack-resistant all-steel radial tire according to claim 4, characterized in that: The sidewall (6) has a semi-circular structure.

6. A crack-resistant all-steel radial tire according to claim 5, characterized in that: The sidewall (6) has an inlay opening (8) inside, and a colored rubber strip (9) is inlaid and installed inside the inlay opening (8).

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