Tractor dual-purpose paddy wheel

Abstract

The invention provides a traveling device of a tractor, in particular to a paddy wheel which is made of metal. The paddy wheel can produce the friction in a paddy field to be consistent with that on a hard pavement, so that the tractor can obtain the traction force in the paddy field which is consistent with that on the hard pavement; and moreover the tractor dual-purpose paddy wheel is convenient to operate and small in steering resistance. The tractor dual-purpose paddy wheel is applicable to the traveling machinery which moves on the paddy field or on the hard pavement and on the pavement falling in between the paddy field and the hard pavement.

Description

Technical field: [0001] The invention relates to a running device of a metal tractor, specifically a metal wheel, which is mainly used as a driving wheel. Background technique: [0002] The dual-purpose wheels assembled on the tractor are easy to slip when walking in the paddy field, and the traction force of the tractor is reduced so that it cannot walk. Walking on hard roads is easy to damage the wheels, and it is difficult to turn. Skidding is because the friction force between the paddy field wheel and the ground becomes smaller, and its reason is that the surface of the paddy field wheel is jammed with mud. Under normal circumstances, the walking of the tractor relies on the power on the tractor to overcome the friction between the driving wheel and the ground, that is to say, the smaller the friction between the driving wheel and the ground, the smaller the traction force of the tractor, and vice versa However, after the soil and mud are jammed on the paddy field whe...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the walking of the tractor relies on the power on the tractor to overcome the friction between the driving wheel and the ground, that is to say, the smaller the friction between the driving wheel and the ground, the smaller the traction force of the tractor, and vice versa However, after the soil and mud are jammed on the paddy field wheel, the soil and mud jammed on the paddy field wheel act on the ground to disperse the pressure on the acting surface of the original paddy field wheel on the ground, so the friction between the paddy field wheel and the ground becomes smaller, and the stuck The coefficient of friction between the soil and the ground on the paddy field wheel is smaller than that of the original paddy field wheel and the ground, so the friction between the paddy field wheel and the ground after the soil is jammed becomes smaller than that of the non-jammed soil , skidding occurs, resulting in reduced traction of the tractor

Walking on hard roads is easy to damage the wheels, because the paddy field wheel has a single contact area with the ground and has no elasticity. No matter how much pressure the tractor exerts on the paddy field wheel, the contact area and contact position of the paddy field wheel to the road surface are fixed, and it cannot happen change, so paddy field wheels are damaged and steering resistance is large

In addition, the radial area outside the paddy field wheel is large, and the contact area with the soil and mud in the paddy field is large when turning, so the resistance is large and it is difficult to turn.

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