阅读说明：本技术 一种胎肩阶梯式散热槽 (Stepped radiating groove of tire shoulder ) 是由 袁时超 赵江华 于 2020-07-30 设计创作，主要内容包括：本发明属于轮胎技术领域,具体涉及一种胎肩阶梯式散热槽。本发明的胎肩阶梯式散热槽沿胎肩翼部圆周方向均匀设置,所述阶梯式散热槽包括第一散热槽和第二散热槽,所述第二散热槽设置于第一散热槽的中心部位,第一散热槽的宽度大于第二散热槽,所述第一散热槽的深度小于第二散热槽。本发明的阶梯式散热沟槽既可以满足散热又兼顾排石、耐刺扎、抗撕裂性能,阶梯式设计使得槽宽更大,便于散热,胎肩部位在遇到更大的剪切力时有一定的缓冲,即便是槽口较深也不容易撕裂,同时阶梯式的沟槽设计方便排石,不易刺扎至胎肩骨架结构,更具有安全性和美观度。(The invention belongs to the technical field of tires, and particularly relates to a shoulder stepped heat dissipation groove. The shoulder stepped heat dissipation grooves are uniformly arranged along the circumferential direction of the shoulder wing part and comprise a first heat dissipation groove and a second heat dissipation groove, the second heat dissipation groove is arranged at the central part of the first heat dissipation groove, the width of the first heat dissipation groove is larger than that of the second heat dissipation groove, and the depth of the first heat dissipation groove is smaller than that of the second heat dissipation groove. The stepped heat dissipation groove can not only meet the requirements of heat dissipation, but also has the properties of stone removal, puncture resistance and tear resistance, the groove width is larger due to the stepped design, the heat dissipation is convenient, the tire shoulder part has certain buffering when meeting larger shearing force, the tire shoulder part is not easy to tear even if the notch is deeper, and meanwhile, the stepped groove design is convenient for stone removal, the tire shoulder skeleton structure is not easy to puncture, and the stepped heat dissipation groove has the advantages of safety and attractiveness.)

1. The utility model provides a cascaded radiating groove of tire shoulder, its characterized in that, cascaded radiating groove (1) evenly sets up along tire shoulder alar part (2) circumferencial direction, cascaded radiating groove (1) includes first radiating groove (11) and second radiating groove (12), second radiating groove (12) set up in the central point of first radiating groove (11), the width of first radiating groove (11) is greater than second radiating groove (12), the degree of depth of first radiating groove (11) is less than second radiating groove (12).

2. Stepped shoulder radiator according to claim 1, characterised in that the first (11) and second (12) radiators are both trapezoidal, symmetrical along the central axis.

3. Stepped shoulder radiator according to claim 1, characterised in that the upper end face of the second radiator groove (12) is lower than the upper end face of the first radiator groove (11), the lower end face of the second radiator groove (12) is lower than the lower end face of the first radiator groove (11), and the lower end faces of the first radiator groove (11) and the second radiator groove (12) form a stepped structure.

4. The stepped shoulder heat sink according to claim 3, wherein the widths of the upper end surfaces of the first heat sink (11) and the second heat sink (12) are smaller than the widths of the lower end surfaces thereof, and the upper end surface, the lower end surface and the wall of the groove are in a circular arc transition structure.

5. Stepped shoulder heatsink according to claim 4, characterized in that the left (11A) and right (11B) groove walls of the first heatsink groove (11) form an angle of 20-35 °, and the left (12A) and right (12B) groove walls of the second heatsink groove (12) form an angle of 20-35 °.

Technical Field

The invention belongs to the technical field of tires, and particularly relates to a shoulder stepped heat dissipation groove.

Background

With the development and progress of the country, the all-steel truck radial tire is more and more widely applied, and the tire patterns have great influence on the noise characteristic, the operation stability, the rolling resistance, the abrasion characteristic and the wet skid resistance of the tire. In particular, all-steel truck radial tires for medium and long distance and high speed running need to have these properties at the same time, and therefore, higher requirements are placed on the design of the tire pattern structure.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a shoulder stepped heat dissipation groove. The stepped heat dissipation groove can not only meet the requirements of heat dissipation, but also has the properties of stone removal, puncture resistance and tear resistance, the groove width is larger due to the stepped design, the heat dissipation is convenient, the tire shoulder part has certain buffering when meeting larger shearing force, the tire shoulder part is not easy to tear even if the notch is deeper, and meanwhile, the stepped groove design is convenient for stone removal, the tire shoulder skeleton structure is not easy to puncture, and the stepped heat dissipation groove has the advantages of safety and attractiveness.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a cascaded radiating groove of tire shoulder, cascaded radiating groove evenly sets up along shoulder alar part circumferencial direction, cascaded radiating groove includes first radiating groove and second radiating groove, the second radiating groove sets up in the central part of first radiating groove, the width of first radiating groove is greater than the second radiating groove, the degree of depth of first radiating groove is less than the second radiating groove.

The first radiating groove and the second radiating groove are both trapezoidal and symmetrical along the central axis.

The upper end face of the second heat dissipation groove is lower than the upper end face of the first heat dissipation groove, the lower end face of the second heat dissipation groove is lower than the lower end face of the first heat dissipation groove, and the lower end faces of the first heat dissipation groove and the second heat dissipation groove form a stepped structure.

The width of the upper end face of each of the first heat dissipation groove and the second heat dissipation groove is smaller than that of the lower end face of each of the first heat dissipation groove and the second heat dissipation groove, and arc transition structures are arranged between the upper end face and the lower end face of each of the first heat dissipation groove and the second heat dissipation groove and between the groove walls of the first heat.

The left groove wall and the right groove wall of the first heat dissipation groove form an included angle of 20-35 degrees, and the left groove wall and the right groove wall of the second heat dissipation groove form an included angle of 20-35 degrees.

Compared with the prior art, the invention has the following advantages:

the stepped heat dissipation grooves are uniformly arranged along the circumferential direction of the shoulder wing part, the second heat dissipation groove is arranged at the central part of the first heat dissipation groove, the width of the first heat dissipation groove is larger than that of the second heat dissipation groove, the depth of the first heat dissipation groove is smaller than that of the second heat dissipation groove, the upper end face of the second heat dissipation groove is lower than that of the first heat dissipation groove, the lower end face of the second heat dissipation groove is lower than that of the first heat dissipation groove, and the lower end faces of the first heat dissipation groove and the second heat dissipation groove form a stepped structure.

Compared with the design of a common single deep pattern groove, the design of the invention adopts a step-type design, so that the groove width is larger, the heat dissipation is convenient, the tire shoulder part has certain buffering when meeting larger shearing force, the tire shoulder part is not easy to tear even if the notch is deeper, and meanwhile, the step-type groove is convenient for removing stones, is not easy to prick a tire shoulder framework structure, and has higher safety and aesthetic degree.

Drawings

FIG. 1 is a schematic view of the shoulder stepped heat sink of the present invention.

Fig. 2 is a sectional view of the stepped heat sink of fig. 1.

FIG. 3 is a schematic view of the construction of shoulder stepped heat sinks of the present invention in a tread.

Fig. 4 is a cross-sectional view of the stepped heat sink of fig. 3 in a tread.

Description of reference numerals: 1-step type heat dissipation groove; 2-shoulder wing part; 3-a crown; 11-a first heat sink; 12-a second heat sink; 11A-the left slot wall of the first radiating slot; 11B-the right groove wall of the first heat dissipation groove; 12A-the left slot wall of the second heat sink; 12B-right groove wall of the second heat dissipation groove.

Detailed Description

In the description of the present invention, it is to be understood that the directions or positional relationships indicated by the directional terms such as "upper, lower", "left, right", etc., are generally based on the directions or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and thus, should not be construed as limiting the scope of the present invention.

The technical solution of the present invention is further explained with reference to the specific drawings and embodiments.