Forklift with adjustable wheelbase

Abstract

The invention discloses a forklift with adjustable wheelbase. The forklift comprises a forklift body, driving wheel assemblies arranged at the front part of the forklift body and steering wheel assemblies arranged at the rear part of the forklift body, wherein counterweights are arranged on the parts, of the forklift body, above the steering wheel assemblies; an adjusting device for adjusting the distance between the driving wheel assemblies and the steering wheel assemblies is arranged on the forklift body and used to adjust the positions, of the driving wheel assemblies, relative to the forklift body. The distance between the driving wheel assemblies and the steering wheel assemblies can be adjusted; when the distance between the driving wheel assemblies and the steering wheel assemblies decreases, the turning radius of the forklift decreases and thus the flexibility of the forklift is improved; and when the distance between the driving wheel assemblies and the steering wheel assemblies increases, the distance between the counterweights and fulcrums can be increased to increase the force moment of the counterweights, so as to increase the lifting weight of a fork to increase the rated lifting weight of the forklift. Moreover, the positions, of the driving wheel assemblies, relative to the forklift body can usually be adjusted at no load, so that the driving force of a driving device can be reduced to be much smaller than the driving force required for adjusting steering wheels.

Description

technical field [0001] The invention relates to the technical field of forklifts, more specifically, to a forklift with adjustable wheelbase. Background technique [0002] At present, most of the counterbalanced forklifts produced at home and abroad, but the driving wheel (front wheel) is stationary relative to the rear wheel (steering wheel), that is, the wheelbase is fixed. [0003] The wheelbase of some counterbalanced forklifts can be adjusted, and the wheelbase can be adjusted by adjusting the position of the rear axle, which changes the mobility of the forklift. However, since the counterweight is not adjusted accordingly, the rated lifting capacity of the forklift cannot be increased. And because of the distribution of the axle load of the forklift: the rear axle accounts for about 90% of the vehicle weight when the car is empty, so the thrust required for the movement of the rear axle is very large. [0004] To sum up, how to use a small driving force to adjust the...

AI Technical Summary

Problems solved by technology

However, since the counterweight is not adjusted accordingly, the rated lifting capacity of the forklift cannot be increased

And because of the distribution of the axle load of the forklift: the rear axle accounts for about 90% of the weight of the whole vehicle when the car is empty, so the thrust required for the movement of the rear axle is very large

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