Truck radial tire pattern structure and tire

Abstract

The utility model discloses a truck radial tire pattern structure and a tire, and relates to the technical field of tire patterns, the tire pattern structure comprises a tire, a tread pattern side groove and a tread pattern middle groove, and the tread pattern middle groove designed by combining a closed groove and an open groove is formed in the middle of the surface of the tire. According to the utility model, the middle groove of the tread pattern adopts the design of combining the closed area and the open area and is complementary with the width of the shoulder groove, so that the saturation change in the whole abrasion period is small, and the abrasion uniformity is ensured. According to the utility model, the thickness of the tread pattern block cutter groove is 1t; 1.2 mm, so that the grip performance of the tire is improved. Through the tread pattern side ditches with the asymmetric pattern design, stone removal can be facilitated, and damage to the bottoms of the ditches is avoided. The large-angle slope and wide platform design is adopted on one side of the tread pattern side ditch, so that stress concentration of the abrasion mark, the shoulder ditch wall and the ditch bottom is reduced, and the cracking risk of the ditch bottom is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tire patterns, in particular to a load-bearing radial tire pattern structure and a tire. Background Art

[0002] In the existing trunk logistics transportation conditions, in order to ensure the fuel saving and wear performance of the tire, four straight closed grooves or open grooves are generally used. It is difficult to take into account rolling resistance, wear and slipperiness. Because the trunk logistics conditions generally use 6*4 tractors and 4*2 tractors, the driving conditions are high-speed, accounting for more than 90%. Customers are very concerned about the fuel saving performance, wear performance, and slippery performance of tires. Conventional closed groove tire design, the middle groove is a water drop shape, and "slipping" will occur on rainy days or when passing through flooded roads. The instantaneous longitudinal force on the tire is greater than the force of the normal road surface, the tread slip increases, and the overall wear life of the tire is reduced.

[0003] Based on this, a load-carrying radial tire pattern structure and a tire are now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0004] The utility model aims to provide a load-carrying radial tire pattern structure and a tire, which can reduce the slippage of the tread due to longitudinal force without causing substantial harm to the rolling resistance of the tire, improve the overall wear performance of the tread, and increase the service life of the tire.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A load-carrying radial tire pattern structure and tire, comprising a tire, tread pattern side grooves and tread pattern middle grooves, wherein the surface edge of the tire is provided with tread pattern side grooves adopting an asymmetric pattern design, and the middle of the tire surface is provided with a tread pattern middle groove adopting a design combining a closed groove and an open groove.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In an optional solution, a tread block is fixedly connected to the surface of the tire.

[0009] In an optional solution: a plurality of groups of tread block sipes are provided on the surface of the tread block, and the tread block sipes are evenly arranged on the tread block at a distance of about 30-50 mm in length.

[0010] In an optional solution: the thickness of the tread block sipes is <1.2 mm.

[0011] In an optional solution: a wear indicator slope and a wear indicator platform are provided on one side of the tread pattern side groove.

[0012] In an optional solution: the crown pattern depth of the tread pattern side groove ranges from 10 to 15 mm.

[0013] In an optional solution: the width distance of the middle grooves of the tread pattern is 15 mm, and the width distance of the tops of the middle grooves of the tread pattern is 22 mm.

[0014] In an optional solution: the first groove bottom slope angle of the tread pattern side groove is designed to be in a range of 3-6°, and the first groove bottom slope angle and the second groove bottom slope angle are inconsistent.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The utility model adopts a combination of closed and open areas in the middle groove of the tread pattern, which complements the width of the shoulder groove, so that the saturation does not change much during the entire wear cycle, ensuring uniform wear.

[0017] 2. The utility model improves the tire gripping performance by making the thickness of the tread block sipes less than 1.2 mm.

[0018] 3. The tread side grooves of the utility model are designed with asymmetric patterns, which can facilitate stone removal and avoid damage to the groove bottom.

[0019] 4. The utility model adopts a large-angle slope + wide platform design on one side of the tread pattern side groove to reduce the stress concentration on the wear mark and the shoulder groove wall and groove bottom, thereby reducing the risk of cracking at the groove bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the practical crown pattern design.

[0021] Figure 2 This is a schematic diagram of the practical crown pattern side groove design.

[0022] Figure 3 This is a schematic diagram of the middle groove design of the practical crown pattern.

[0023] Figure 4 This is a schematic diagram of the practical crown pattern shoulder groove and wear mark design.

[0024] Notes on figure numbers: 1. Tire body; 2. Tread pattern side groove; 3. Tread pattern block; 4. Tread pattern block sipe; 5. Tread pattern middle groove; G1. Crown pattern depth; G2. Pattern middle groove width; G3. Pattern middle groove top width; γ1. First pattern groove bottom slope angle; γ2. Second pattern groove bottom slope angle; 6. Wear indicator slope; 7. Wear indicator platform. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Example 1

[0027] In one embodiment, Figure 1-Figure 4 As shown, a load-bearing radial tire pattern structure includes a tire body 1, tread pattern side grooves 2 and tread pattern middle grooves 5. The surface edge of the tire body 1 is provided with tread pattern side grooves 2 with an asymmetric pattern design, which is conducive to stone removal and avoids groove bottom damage. The middle of the surface of the tire body 1 is provided with a tread pattern middle groove 5 with a combination of closed groove and open groove design, which is complementary to the shoulder groove width. The saturation does not change much during the entire wear cycle, ensuring uniform wear.

[0028] In one embodiment, Figure 1 As shown, a tread block 3 is fixedly connected to the surface of the tire body 1 .

[0029] In one embodiment, Figure 1 As shown, the surface of the tread block 3 is provided with a plurality of groups of tread block grooves 4, and the tread block grooves 4 are evenly arranged on the tread block 3 at a distance of about 30-50 mm in length, so that the tread block 3 will not be too densely packed with steel sheets arranged inside the tread block grooves 4, thereby causing low longitudinal stiffness of the tread block and easy damage to the block; and the surface grip performance will not be poor and the tire's anti-skid ability will not be poor due to insufficient number of steel sheets arranged inside.

[0030] In one embodiment, Figure 1 As shown, the thickness of the tread block sipe 4 is less than 1.2 mm, so as to improve the tire grip performance.

[0031] In one embodiment, Figure 4 As shown, a wear mark slope 6 and a wear mark platform 7 are provided on one side of the tread pattern side groove 2, and a large-angle slope + wide platform design is adopted to reduce stress concentration between the wear mark and the shoulder groove wall and groove bottom, thereby reducing the risk of cracking at the groove bottom.

[0032] In one embodiment, Figure 2 As shown, the crown pattern depth G1 of the tread pattern side groove 2 ranges from 10 to 15 mm.

[0033] In one embodiment, Figure 3As shown, the width G2 of the middle groove 5 of the tread pattern is 15 mm, and the width G3 of the top of the middle groove 5 of the tread pattern is 22 mm to avoid poor drainage and reduced wet skid ability due to a G3 value that is too small, or a value that is too large, which leads to weakened overall crown rigidity, large deformation, and increased rolling resistance.

[0034] In one embodiment, Figure 2 As shown, the design range of the first groove bottom slope angle γ1 of the tread pattern side groove 2 is 3-6°, so as to avoid the design value being too low, which will result in an insignificant stone removal effect, or the design value being too high, which will cause stress concentration at the groove bottom and cause early damage problems. The angles of the first groove bottom slope angle γ1 and the second groove bottom slope angle γ2 are inconsistent. This is an asymmetric design, which is conducive to stone removal and avoids groove bottom damage.

[0035] Example 2

[0036] In one embodiment, as shown in Table 1 below, through the performance comparison of different pattern designs, the comparative example and the embodiment have the same pattern running surface, and the middle groove 5 of the tread pattern of the embodiment is a combination of an open groove and a closed area; it can be seen that the rolling resistance performance remains basically unchanged, the wet slip coefficient is increased by 15.4%, and the wear is increased by 20%.

[0037] Table 1 Pattern performance comparison

[0038]

[0039] Working principle: The above embodiment discloses a load-bearing radial tire pattern structure and tire, wherein the middle groove 5 of the tread pattern adopts a combination of closed area and open area design to complement the shoulder groove width, and the saturation changes little during the entire wear cycle to ensure uniform wear. Through performance comparison of different pattern designs, the comparative example and the embodiment have the same pattern running surface, and the middle groove 5 of the tread pattern of the embodiment is a combination of open groove and closed area; it can be seen that the rolling resistance performance remains basically unchanged, the wet slip coefficient is increased by 15.4%, and the wear is increased by 20%. One side of the tread pattern side groove 2 adopts a large-angle slope + wide platform design to reduce the stress concentration of the wear mark and the shoulder groove wall and groove bottom, and reduce the risk of cracking at the groove bottom. The thickness of the tread block sipe 4 is <1.2mm to improve the tire grip performance. The tread pattern side groove 2 with an asymmetric pattern design can facilitate stone removal and avoid groove bottom damage.

[0040] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A load-carrying radial tire pattern structure, comprising a tire body (1), tread pattern side grooves (2) and tread pattern middle grooves (5), characterized in that: The surface edge of the tire body (1) is provided with a tread pattern side groove (2) adopting an asymmetric pattern design, and the middle of the surface of the tire body (1) is provided with a tread pattern middle groove (5) adopting a tread pattern combining a closed groove and an open groove design.

2. A load-carrying radial tire pattern structure according to claim 1, characterized in that: A tread pattern block (3) is fixedly connected to the surface of the tire body (1).

3. A load-carrying radial tire pattern structure according to claim 2, characterized in that: The surface of the tread block (3) is provided with a plurality of groups of tread block sipes (4), and the tread block sipes (4) are evenly arranged on the tread block (3) at intervals of about 30-50 mm in length.

4. A load-carrying radial tire pattern structure according to claim 3, characterized in that: The thickness of the tread block sipe (4) is less than 1.2 mm.

5. The load-carrying radial tire pattern structure according to claim 1, characterized in that: A wear marking slope (6) and a wear marking platform (7) are provided on one side of the tread pattern side groove (2).

6. The load-carrying radial tire pattern structure according to claim 1, characterized in that: The crown pattern depth G1 of the tread pattern side groove (2) has a value ranging from 10 to 15 mm.

7. The load-carrying radial tire pattern structure according to claim 1, characterized in that: The width G2 of the middle groove (5) of the tread pattern is 15 mm, and the width G3 of the top of the middle groove (5) of the tread pattern is 22 mm.

8. The load-carrying radial tire pattern structure according to claim 1, characterized in that: The first groove bottom slope angle γ1 of the tread pattern side groove (2) is designed to be in the range of 3-6°, and the first groove bottom slope angle γ1 and the second groove bottom slope angle γ2 are inconsistent.

9. A tire, characterized in that: The load-bearing radial tire pattern structure comprises the structure described in any one of claims 1 to 8.

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