A snow tire groove with a bionic non-smooth pattern

Abstract

The invention relates to a snow tire groove with bionic non-smooth patterns, which belongs to the technical field of auto tires. The bionic non-smooth patterns at two side faces of the snow tire groove are distributed symmetrically; hemispheric pits, concave-convex structures I and concave-convex structures II are sequentially arranged from top to bottom; the three concave-convex structures I and the three concave-convex structures II are arranged under each two adjacent hemispheric pits; the concave-convex structures I and the concave-convex structures II at two sides are in one vertical line with a center of each two adjacent hemispheric pits; each two adjacent concave-convex structure I and the concave-convex structure II are arranged in a staggering way up and down; a middle row, a left row and a right row of a concave-convex structure III arranged on the bottom face of the groove are arranged in a staggering way. The pattern groove provided by the invention can be applied in a snow and four-season car tire, and other pattern structures of the tire have no need to be changed, but a groove structure of the tire needs to be changed, so that the combination properties of an original tire such as drainage and ageing resistance are ensured; the road holding of the tire is improved, the aerodynamic noise of the patterns can be reduced by 3 to 6 percent, stone and sediment can be automatically extruded and discharged, the damage of stones on the tire is effectively prevented, and the service life of the tire is prolonged.

Description

technical field [0001] The invention belongs to the technical field of automobile tires, in particular to a bionic non-smooth pattern of snow tire grooves. Background technique [0002] When driving in winter, a layer of water film will be formed between the tire and the ice and snow road surface, which will reduce the friction between the tire and the road surface and cause the tire to slip. Adhesion to ice and snow roads, so that the tires have stronger grip and anti-skid performance on ice and snow roads, improving braking and handling performance, but at the same time the noise of the tires increases and the wear resistance decreases. The implementation of the EU Tire Labeling Law and my country's "Green Tire Technical Specifications" have put forward clear requirements and limit levels for tire noise performance. In the face of increasingly stringent regulatory requirements, it is imminent to study new technologies for low-noise performance tires. However, the sound m...

AI Technical Summary

Problems solved by technology

In the choice of tread pattern, the bionic design of imitation coral pattern is adopted. When the road is dry, the tread of the tire will automatically harden to reduce wear and noise, and when the road is wet, the tire will become soft again, so as to Improving the grip of tires, but many technical aspects cannot be solved at present

Chinese patent CN103332071A discloses a noise-reducing tire pattern groove. The concave-convex damping structure can eliminate a certain range of air flow frequency in the tube cavity, reduce air pump noise, and reduce the probability of air column resonance, but the structure is relatively rough and has no shape feature ratio. Cannot optimize noise reduction

Chinese patent CN105270102A discloses a streamlined longitudinal groove structure, which can reduce noise, improve the flow of water in the road area, and increase the grip of the tire by increasing the ground contact area under the condition of certain wear and tear of the tire, but the heat dissipation performance of the tire and service life has not been improved

Therefore, there is currently no effective method for reducing tire noise and improving the service life of tires under the condition of slightly modifying the existing tire pattern.

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