A chassis with adjustable lateral wheelbase and ground clearance and its adjustment method

Abstract

The invention discloses a self-propelled chassis with an adjustable transverse wheel tread and an adjustable ground clearance. The self-propelled chassis is composed of a frame, a front axle, a rear axle, a power system, a ground clearance adjusting system, a transverse wheel tread adjusting system and a steady adjusting and controlling system. The power system comprises an engine, a clutch, a pump station, a hydraulic motor, a proportional valve and the like. The ground clearance adjusting system comprises a controller, a servo valve, ground clearance adjusting hydraulic cylinders and the like, wherein the controller adjusts the four ground clearance adjusting hydraulic cylinders through the servo valve to synchronously ascend and descend to change the ground clearance of the chassis. The transverse wheel tread adjusting system comprises a servo valve, a controller, a wheel tread adjusting hydraulic cylinder and the like, wherein the hydraulic cylinder drives a piston rod according to an instruction of the controller, drives an axle shaft connecting piece to move through a connecting flange, pushes wheels to transversely move and adjusts the transverse wheel tread of the chassis. The steady adjusting and controlling system controls flows of the four ground clearance adjusting hydraulic cylinders respectively through the servo valve according to unsteady signals, collected by a gyroscope, of the front axle and unsteady signals, collected by the gyroscope, of the rear axle, and automatically adjusts balance and stability of the chassis.

Description

Technical field: [0001] The invention relates to a self-propelled chassis with high ground clearance, in particular to a highly adaptable self-propelled chassis with adjustable lateral wheelbase and ground clearance. technical background: [0002] In order to meet the field management requirements of high poles and crops with different row widths in farmland, a walking chassis with high ground clearance and the ability to adjust the width of the lateral track width is often required. However, the existing high clearance walking chassis mostly use mechanical transmission, which has low transmission stability and heavy weight. , the ground clearance is fixed, the lateral wheel base cannot be adjusted, and the scope of application is small. Therefore, in order to meet the various ground clearances of different crop heights and the field operation requirements of different row widths, a walking machine with adjustable ground clearance and lateral wheel base is developed. Chassis...

AI Technical Summary

Problems solved by technology

However, the lifting movements of the four ground clearance adjustment hydraulic cylinders are always in step and at the same lifting height, so the running stability of the chassis is poor

When the ground in the field is not stable, it will cause the chassis to tilt, reduce the efficiency and quality of the sprayer spray, and even damage the spray boom

In addition, the horizontal track of the above-mentioned chassis cannot be adjusted, and cannot adapt to the different ridge width requirements of different crops. Therefore, it is necessary to develop a chassis that can adjust the horizontal wheel track

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