Foldable type walking wheel

Abstract

The invention discloses a foldable type walking wheel which is simple in structure, low in manufacturing cost, easy and convenient to operate, wide in application and especially suitable for skidding and sinking prevention of various wheel machines like boat tractors in paddy fields and upland fields. The foldable type walking wheel has the beneficial effects that before and after operation, a drive wheel does not need to be replaced, labor intensity is relieved, the hard bottom layer of the paddy fields is not destroyed, and the benignant and sustainable operation of mechanical cultivation of the paddy fields is ensured. During running, the riding comfort is good, adhesive force is high, rolling resistance is small, and traction efficiency is high. The foldable type walking wheel comprises a hub, a drive tire and the like. The hub or a rigid connection body thereof is concentrically and rigidly connected with a rim 1; a plurality of supporting frames 2 are evenly distributed on the outer circumferential face of the rim 1 in a radial shape; the upper ends of the supporting frames 2 are hinged with supporting legs 3; the supporting legs 3 are provided with hinge holes 12 and antiskid teeth 4; the antiskid teeth 4 can extend out of an outer edge 14 of the drive tire; the supporting legs 3 can be folded around a hinge shaft 11 under the effect of external force; the supporting frames 2 are provided with limiting check blocks 6; and extension springs 5 are connected between the supporting legs 3 and the lower portions of the supporting frames 2.

Description

technical field [0001] The invention relates to an anti-skid and anti-subsidence device for wheeled vehicles, in particular to a foldable walking wheel for anti-skid and anti-subsidence of wheeled farming and harvesting machines, including mechanical plowing boats, when working in paddy and dry fields. Background technique [0002] At present, wheeled and boat tractors are widely used in paddy field cultivation, and rigid impellers are used as driving wheels, which have good anti-skid effect. However, because the rigid impeller has poor running smoothness on hard roads and is easy to damage the impeller and the road surface, it is very troublesome to frequently replace the rigid impeller and rubber wheel before and after entering the paddy field! Especially now that most of the farmers are left-behind women and the elderly, it is extremely difficult to replace the driving wheel! Furthermore, the blades of the rigid impeller are fixed. It squeezes the soil downward at the in...

AI Technical Summary

Problems solved by technology

However, because the rigid impeller runs poorly on hard roads and is easy to damage the impeller and the road surface, it is very troublesome to frequently replace the rigid impeller and rubber wheel before and after entering the paddy field! Especially now that most of the farmers are left-behind women and the elderly, it is extremely difficult to replace the driving wheel! Furthermore, the blades of the rigid impeller are fixed. It squeezes the soil downward at the initial stage of entering the soil, increasing the rolling resistance, and tangentially squeezes the soil in the middle stage to provide instantaneous traction. In the later stage, the previously squeezed soil is picked out and dug. A pit was formed, and the hard bottom layer of the paddy fields deepened year by year due to continuous cultivation, so that various farming machines were deeply trapped in it. Even the mechanical farming boats and crawler tractors were unable to extricate themselves, and had to resume farming with oxen or water instead of drought or even abandoned. At the same time, such paddy fields are prone to lodging in the middle and late stages of rice growth, resulting in reduced or even no harvest, which seriously threatens national food security.

Wheeled tractors also have serious skidding phenomenon in dry field farming. There is a rigid anti-skid wheel connected in parallel to the outside of the driving tire. Although the skidding problem is solved, the rolling resistance of the driving wheel is increased, which increases fuel consumption.

In order to prevent slipping, high-power wheeled tractors manufactured in European and American countries not only adopt four-wheel drive, but also connect a drive wheel of the same specification in parallel next to each drive wheel to improve traction. This not only increases rolling resistance, but also increases purchase costs. Moreover, so many tires run over, causing extensive damage to the aggregate structure of the soil

All kinds of wheeled engineering, exploration, off-road and other vehicles use anti-skid chains for anti-skid, which has poor anti-skid effect, great wear on tires and short service life

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