Casting type polyurethane material inflation-free tire

Abstract

The invention relates to a casting type polyurethane material inflation-free tire, made of two polyurethane materials with different structures and different hardness. The casting type polyurethane material inflation-free tire comprises a tire body and a settling pit, wherein one side of the tire body is provided with a tire crown layer; the tire crown layer is poured on the outer top periphery ofthe tire body; the tire crown layer is arranged on the outer side of the tire body, and the settling pit is arranged on the outer side of the tire crown layer; as the crown lay of the casting type polyurethane material inflation-free tire is non-foamed, full density polyurethane (or CPU) elastomer material, the structure of tire crown is different from that of tire body, occupying 1 / 3 to 1 / 4 of the cross-sectional area of the top layer of the tire; as the crown non-foamed body and the tire body foamed body are automatically synthesized into an integral body during the casting process, the tire crown is wear-resistant and skid-proof, has small rolling resistance, has hydrolysis resistance, acid resistance, and alkali resistance, and the tire body foam sponge layer functions to achieve theshock-absorbing effect; and the double-layer shock-absorbing effect is close to that of the traditional pneumatic tire.

Description

technical field [0001] The invention relates to the technical field of tire products, in particular to a non-pneumatic tire made of cast polyurethane material. Background technique [0002] Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperature effects during driving. Therefore, they must have high load-carrying performance, traction performance, and cushioning performance. Wear resistance and flex resistance, as well as low rolling resistance and heat generation, half of the world's rubber consumption is used in tire production, which shows that the rubber consumption capacity of tires is not trivial. [0003] The existing polyurethane (PU) foam non-inflatable tire has the advantages of complete anti-puncture, no inflation, moderate elasticity, and no maintenance. The PU foam non-inflatable tire adopts micro-closed cell foaming technology to form high The small air chambers that are n...

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a non-pneumatic tire made of pouring polyurethane material to solve the problem that the existing non-pneumatic tire proposed by the above-mentioned background technology is a product made of one material, which is a single structure, has poor shock absorption effect, and is not durable. Grinding, dry friction and wear between the brake and the ground are obvious, and the grip between the brake and the ground is poor. On the other hand, the color is single, and there is no reflective or fluorescent effect at night, and the safety is not good.

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