A plastic or rubber wheel embedded in a resilient metal skeleton

Abstract

The invention relates to the field of agricultural machinery composite forming wheels, in particular to a plastic rubber wheel embedded in an elastic metal skeleton. The plastic rubber wheel comprises an outer ring, circular pipes, springs, spring shafts, a bearing, a backing plate and an inner ring, wherein six circular pipes are uniformly distributed and welded on the elastic metal skeleton between circumferential directions of the outer ring and the inner ring; the spring and the spring shaft are respectively mounted in each circular pipe; a ball bearing with seal rings on both sides is mounted in the middle of a circle center of the inner ring; two circular backing plates with circular holes at the centers are respectively welded on both sides of the inner ring; the outer ring of the bearing props the spring shaft to compress the six springs; both sides of the bearing abut on the circular backing plates. The plastic rubber wheel embedded in the elastic metal skeleton provided by the invention needs no tire so as to spare troubles of inflating, repairing and changing the tire, and is suitable for mass production and high in production efficiency due to the use of mold forming.

Description

technical field [0001] The patent of the present invention relates to the field of composite material forming wheels for agricultural machinery, in particular to a plastic or rubber wheel embedded with an elastic metal skeleton. Background technique [0002] In small rotary cultivators and small harvesters, steering wheels are usually used. One is the tire type, which is easy to be punctured by sharp objects, and it is very troublesome to inflate, repair and change the tire; Casting and processing have a long production cycle; there is also a rubber type, which has poor elasticity and short life. Contents of the invention [0003] The object of the present invention is to provide a plastic or rubber wheel embedded in an elastic metal skeleton, which avoids the above-mentioned technical defects. The invention puts the elastic metal frame into the mold and injects plastic or rubber to form the wheel at one time. The elastic metal frame is wrapped with plastic or rubber. Whe...

AI Technical Summary

Problems solved by technology

[0002] In small rotary cultivators and small harvesters, steering wheels are usually used, one is tire type, the tire is easy to be punctured when encountering sharp objects, and it is troublesome to inflate, repair and change the tire; the other is cast iron type, the wheel has no elasticity, Casting, processing, long production cycle; there is also a rubber type, which has poor elasticity and short life

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