Gradient elastic non-pneumatic tire

Abstract

The invention provides a gradient elastic non-pneumatic tire. The gradient elastic non-pneumatic tire comprises a supporting structure and an annular belt; a tire tread is fixed to the surface of the annular belt; the annular belt is formed by a square net in a surrounding mode; the supporting structure comprises an inner fixing ring, a gradient elastic spoke and an outer fixing ring; the inner fixing ring is installed on the outer side of a wheel rim; the outer fixing ring is installed on the inner side of the annular belt; the gradient elastic spoke is located between the inner fixing ring and the outer fixing ring; the gradient elastic spoke comprises rigid layers and flexible layers; the rigidity of the radial structure of the rigid layers is higher than that of the radial structure of the flexible layers; the rigid layers and the flexible layers are distributed alternately in the radial direction of the tire; the number of the rigid layers is larger than that of the flexible layers; and the rigidity of the radial structure of the flexible layers is increased as the radial diameter of the tire is decreased gradually. Through arrangement of the flexible layers and the rigid layers, the whole non-pneumatic tire has the lower stress level when deforming, the service life of the non-pneumatic tire is prolonged advantageously, and the excellent ground gripping capacity is obtained.

Description

technical field [0001] The invention relates to the field of tires, in particular to a gradient elastic non-pneumatic tire. Background technique [0002] Since the appearance of pneumatic tires, especially radial tires, the structure of tires has been continuously improved, and the performance has become more perfect. Pneumatic tires can support loads, absorb road vibrations, and have some significant advantages: lower ground pressure, lower rolling resistance and less noise, and have been widely used in various vehicles. However, due to its structural reasons, pneumatic tires have unavoidable shortcomings, such as complex manufacturing process, consumption of a large amount of natural rubber, need to maintain a certain inflation pressure, and the risk of tire blowout. [0003] Considering the various performances of pneumatic tires, many new types of non-pneumatic tires have come out. [0004] Patent CN101687433B proposes a non-pneumatic tire based on tensile force for su...

AI Technical Summary

Problems solved by technology

Patent CN102398474B proposes a solid tire. This invention highlights the cushioning effect of the solid tire, but it cannot return to its original shape after bearing the load, which is very unfavorable to the gripping ability of the tire.

Patent CN104995036A discloses a non-pneumatic tire. In this invention, the structural rigidity of the inner and outer parts of the wheel is different, which is a requirement for the wheel as a whole, but does not make specific requirements for the internal structure of the wheel, which cannot cope with the stress concentration generated when the wheel deforms. question

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