All-steel truck radial tire tread pattern structure

Abstract

The utility model relates to an all-steel truck radial tire tread pattern structure which comprises a tire tread, a plurality of longitudinal main pattern grooves which are arranged in a staggered mode are formed in the tire tread, and the longitudinal main pattern grooves comprise wavy longitudinal main pattern grooves and zigzag longitudinal main pattern grooves located on the two sides of the wavy longitudinal main pattern grooves. And inclined grooves are connected between the wavy longitudinal main pattern grooves and the zigzag longitudinal main pattern grooves. Compared with the prior art, the all-steel tire has the advantages that the all-steel tire is low in heat generation and even in abrasion in the using process, the traveling mileage is high, and pattern groove bottom cracking is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of tire design, in particular to a tread pattern structure of an all-steel load-bearing radial tire. Background Art

[0002] Tires are donut-shaped elastic rubber products used for ground contact and rolling on various vehicles or machines. They are usually installed on metal rims to support the vehicle body, cushion external impacts, achieve contact with the road surface and ensure the vehicle's driving performance. Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperatures when driving, so they must have high load-bearing performance, traction performance, and cushioning performance.

[0003] There are many different tire tread designs, and their designs are based on the suitability for different uses and road conditions. At present, the straight groove design has better guiding performance and low noise, but poor driving performance; the transverse groove design has better driving performance, but high heat generation, uneven wear, low mileage and easy cracking of the groove bottom.

[0004] Patent publication number CN218750130U discloses a tread pattern structure of a full-steel load-bearing tubeless radial tire, including a tire tread, the tire tread is composed of nine equal parts of an active mold, the tire tread is provided with a plurality of staggered longitudinal main zigzag groove patterns, block-shaped pattern blocks are provided between adjacent longitudinal main zigzag groove patterns, and heat dissipation grooves are evenly distributed on the shoulder of the tire. However, the longitudinal main zigzag groove pattern of the tread pattern structure is Z-shaped, and there is still a certain stress concentration problem during use. Utility Model Content

[0005] The purpose of the utility model is to provide a tread pattern structure of an all-steel load-bearing radial tire in order to overcome the defects of the above-mentioned prior art, so as to achieve low heat generation and uniform wear of the all-steel tire during use, have a higher mileage, and prevent cracking at the bottom of the groove.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A tread pattern structure of an all-steel load-bearing radial tire comprises a tire tread, wherein the tire tread is provided with a plurality of staggered longitudinal main pattern grooves, including wavy longitudinal main pattern grooves and zigzag longitudinal main pattern grooves on both sides thereof, wherein an inclined groove is connected between the wavy longitudinal main pattern grooves and the zigzag longitudinal main pattern grooves.

[0008] Furthermore, the wavy longitudinal main groove has one groove, and the zigzag longitudinal main groove has two grooves.

[0009] Furthermore, the wavy longitudinal main grooves include a first arc longitudinal main groove and a second arc longitudinal main groove which are tangentially transitionally connected along a circumferential arc.

[0010] Furthermore, the first arc longitudinal main groove and the second arc longitudinal main groove have the same size, and their radii are both 30-40 mm.

[0011] Furthermore, the wavy longitudinal main groove is 12 to 18 mm wide and 12 to 17 mm deep, and a boss facing the center of the tire is provided at a depth of 1 / 4 to 1 / 2 of the groove bottom.

[0012] Furthermore, the peak value of the boss is located at the center of the wavy longitudinal main groove, and transitions to the bottom arc of the wavy longitudinal main groove, and the arc radius is 2.5 to 5 mm.

[0013] Furthermore, the zigzag longitudinal main grooves include a first fold line longitudinal main groove and a second fold line longitudinal main groove which are connected at an obtuse angle along the circumferential direction, and the angle between the first fold line longitudinal main groove and the second fold line longitudinal main groove and the circumferential center line of the tire tread is -20° to 20°.

[0014] Furthermore, the bottom of the zigzag main longitudinal groove has an arc transition, and the radius of the arc is 2.5 to 5 mm.

[0015] Furthermore, the inclined groove has an angle of 45° to 75° with the circumferential center line of the tire tread, a width of 1 to 4 mm, a depth of 6 to 8.5 mm, a groove bottom arc transition, and an arc radius of 0.5 to 2 mm.

[0016] Furthermore, a plurality of heat dissipation devices are evenly distributed on the shoulder of the tire, wherein the heat dissipation devices are water drop-shaped groove patterns, wherein the radius of the water drop is 8 to 12 mm.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] (1) The utility model designs a tread pattern structure of an all-steel load-bearing radial tire, wherein the middle wavy longitudinal main groove is composed of a first arc longitudinal main groove and a second arc longitudinal main groove that transition along a circumferential arc. Compared with the excessive angle, the problem of stress concentration in the crown of the tire can be effectively solved to ensure uniform wear of the tire. A boss is provided at the bottom of the middle wavy longitudinal main groove, and the boss transitions to the arc of the bottom of the wavy longitudinal main groove to prevent debris from being embedded in the bottom of the groove, protect the bottom of the groove from being punctured, and prevent the bottom of the groove from cracking.

[0019] (2) The utility model designs an all-steel load-bearing radial tire tread pattern structure, wherein the zigzag longitudinal main grooves on both sides are composed of a first fold line longitudinal main groove and a second fold line longitudinal main groove that intersect and connect at an obtuse angle along the circumferential direction, and an inclined groove is connected between the wavy longitudinal main grooves and the zigzag longitudinal main grooves. Compared with the straight pattern, the zigzag pattern can provide better driving force and grip during tire use.

[0020] (3) The utility model designs an all-steel load-bearing radial tire tread pattern structure, in which a water drop-shaped heat dissipation device is provided on the tire shoulder, and the center of the water drop is located at the highest temperature point of the tire shoulder, so as to prevent excessive heat generation on both shoulders of the tire during use, effectively avoid premature damage of the tire, and at the same time have a certain aesthetic visual effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the tire tread pattern in Example 1 of the utility model;

[0022] Figure 2 It is a cross-sectional view of the tire tread pattern in Example 1 of the utility model.

[0023] Description of the markings in the figure:

[0024] 1- Tire tread;

[0025] 2- wavy longitudinal main groove, 21- first arc longitudinal main groove, 22- second arc longitudinal main groove;

[0026] 3-zigzag longitudinal main groove, 31-first fold line longitudinal main groove, 32-second fold line longitudinal main groove;

[0027] 4- inclined grooves;

[0028] 5- heat dissipation device;

[0029] 6- Boss. DETAILED DESCRIPTION

[0030] The utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the utility model, and provide detailed implementation methods and specific operation processes, but the protection scope of the utility model is not limited to the following embodiments. In the following implementation methods or embodiments, if there is no special description of the functional components or structures, it indicates that they are all conventional components or conventional structures used in the field to achieve the corresponding functions.

[0031] It should be noted that in the description of the present invention, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example 1

[0034] like Figure 1 and Figure 2 As shown, a tread pattern structure of an all-steel load-bearing radial tire includes a tire tread 1, wherein the tire tread 1 is provided with a plurality of staggered longitudinal main grooves, including a wavy longitudinal main groove 2 and a zigzag longitudinal main groove 3 located on both sides thereof, and an inclined groove 4 is connected between the wavy longitudinal main groove 2 and the zigzag longitudinal main groove 3.

[0035] In this embodiment, the wavy longitudinal main groove 2 has one groove, and the zigzag longitudinal main groove 3 has two grooves. The wavy longitudinal main groove 2 includes a first arc longitudinal main groove 21 and a second arc longitudinal main groove 22 that are tangentially connected along a circumferential arc. The first arc longitudinal main groove 21 and the second arc longitudinal main groove 22 have the same size, and their radii are both 35 mm.

[0036] In this embodiment, the wavy longitudinal main groove 2 is 15 mm wide and 15 mm deep, and a boss 6 is provided toward the tire center at a depth of 1 / 3 of the groove bottom of the wavy longitudinal main groove 2. The peak of the boss 6 is located at the center of the wavy longitudinal main groove 2, and transitions to the groove bottom of the wavy longitudinal main groove 2 in an arc, and the arc radius is 4 mm.

[0037] In this embodiment, the zigzag longitudinal main groove 3 includes a first fold line longitudinal main groove 31 and a second fold line longitudinal main groove 32 intersecting at an obtuse angle along the circumferential direction, and the angle between the first fold line longitudinal main groove 31 and the second fold line longitudinal main groove 32 and the circumferential center line of the tire tread 1 is ±20°. The bottom of the zigzag longitudinal main groove 3 is an arc transition, and the arc radius is 4 mm.

[0038] In this embodiment, the inclined groove 4 has an included angle of 60° with the circumferential center line of the tire tread 1, a width of 2.5 mm, a depth of 7 mm, an arc transition at the bottom of the groove, and an arc radius of 1 mm.

[0039] In this embodiment, a plurality of heat dissipation devices 5 are evenly distributed on the shoulder of the tire. The heat dissipation devices 5 are water drop-shaped groove patterns, wherein the radius of the water drop is 10 mm.

[0040] After adopting the tread pattern structure of this embodiment, indoor test mileage and outdoor actual loading mileage experiments confirm that the heat generation of the all-steel load-bearing radial tire of this embodiment is effectively reduced, and the indoor durability and outdoor driving mileage are greatly improved. The tread pattern structure of this embodiment has high wear resistance and uniform wear, and effectively prevents cracks at the bottom of the groove. The tire reduces the probability of early damage to the tire caused by shoulder voids, crown voids, and poor wear resistance.

[0041] The above description of the embodiments is to facilitate the understanding and use of the utility model by those skilled in the art. It is obvious that those familiar with the art can easily make various modifications to these embodiments and apply the general principles described herein to other embodiments without creative work. Therefore, the utility model is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of the utility model without departing from the scope of the utility model should be within the scope of protection of the utility model.

Claims

1. A tread pattern structure of an all-steel load-bearing radial tire, comprising a tire tread (1), characterized in that: The tire tread (1) is provided with a plurality of staggered longitudinal main grooves, including wavy longitudinal main grooves (2) and zigzag longitudinal main grooves (3) located on both sides thereof, and an inclined groove (4) is connected between the wavy longitudinal main grooves (2) and the zigzag longitudinal main grooves (3); The wavy longitudinal main groove (2) comprises a first arc longitudinal main groove (21) and a second arc longitudinal main groove (22) connected in a tangential transition along a circumferential arc; A plurality of heat dissipation devices (5) are evenly distributed on the shoulder of the tire, wherein the heat dissipation devices (5) are water drop-shaped groove patterns, wherein the radius of the water drop is 8 to 12 mm.

2. The tread pattern structure of the all-steel load-bearing radial tire according to claim 1, characterized in that: The wavy longitudinal main groove (2) has one groove, and the zigzag longitudinal main groove (3) has two grooves.

3. The tread pattern structure of the all-steel load-bearing radial tire according to claim 1, characterized in that: The first circular arc longitudinal main groove (21) and the second circular arc longitudinal main groove (22) have the same size, and their radii are both 30-40 mm.

4. The tread pattern structure of the all-steel load-bearing radial tire according to claim 1, characterized in that: The wavy longitudinal main groove (2) has a width of 12 to 18 mm and a depth of 12 to 17 mm. The wavy longitudinal main groove (2) is provided with a boss (6) facing the center of the tire at a depth of 1 / 4 to 1 / 2 of the groove bottom.

5. The tread pattern structure of the all-steel load-bearing radial tire according to claim 4, characterized in that: The peak value of the boss (6) is located at the center of the wavy longitudinal main groove (2), and transitions to the bottom arc of the wavy longitudinal main groove (2), and the arc radius is 2.5 to 5 mm.

6. The tread pattern structure of the all-steel load-bearing radial tire according to claim 1, characterized in that: The zigzag longitudinal main groove (3) comprises a first fold line longitudinal main groove (31) and a second fold line longitudinal main groove (32) which intersect and connect at an obtuse angle along the circumferential direction, and the angle between the first fold line longitudinal main groove (31) and the second fold line longitudinal main groove (32) and the circumferential center line of the tire tread (1) is -20° to 20°.

7. The tread pattern structure of the all-steel load-bearing radial tire according to claim 1, characterized in that: The zigzag longitudinal main groove (3) has an arc transition at the bottom, and the arc radius is 2.5-5 mm.

8. The tread pattern structure of the all-steel load-bearing radial tire according to claim 1, characterized in that: The inclined groove (4) has an included angle of 45° to 75° with the circumferential center line of the tire tread (1), a width of 1 to 4 mm, a depth of 6 to 8.5 mm, a groove bottom arc transition, and an arc radius of 0.5 to 2 mm.

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