Hydraulic control system for manual steering hydraulic power tractor

Abstract

The invention relates to a hydraulic control system for a manual steering hydraulic power tractor. The hydraulic control system comprises a power pump station, a hydraulic pressure gauge, a hydraulic control valve bank, a plunger type cylinder and a hydraulic motor. The power pump station comprises a motor, an oil tank, a liquid level and liquid temperature gauge, an air filter, an absorbed oil filter, an oil hydraulic pump, a one-way valve, an overflow valve and a return oil filter. The hydraulic control valve bank comprises an M-type three-position four-way hand change-over valve, an overflow valve, a hydraulic change-over valve, a Y-type three-position four-way hand change-over valve, a two-position four-way hand change-over valve, a hydraulic control one-way valve and a throttling valve. By means of the hydraulic control system, control over stretching and contraction of the plunger type cylinder at a working position and changeover between a high driving gear and a low driving gear in the running process can be conveniently achieved under different loading conditions, the system structure is simple, operation is convenient and fast, control is simple, safety and reliability are achieved, and potential safety hazards of operators are eliminated.

Description

technical field [0001] The invention relates to a hydraulic control system, in particular to a hydraulic control system of a manual steering hydraulic power tractor. It belongs to the technical field of hydraulic control. Background technique [0002] At present, the normal driving of a semi-trailer or a full-trailer all requires the traction of a tractor to realize it. Due to the large volume and large turning radius of the tractor, it has high requirements on the site, and is not suitable for transshipment in a small space or short distance, and sometimes it cannot even achieve the ideal operation requirements. Moreover, the tractor system is complicated, the operation is cumbersome, professional drivers are required, and the flexibility is poor. , low work efficiency. The manual steering hydraulic power tractor has a compact structure and small overall length, width and height. To meet the requirements of different loads and different speeds and other working condition...

AI Technical Summary

Problems solved by technology

Due to the large volume and large turning radius of the tractor, it has high requirements on the site, and is not suitable for transshipment in a small space or short distance, and sometimes it cannot even achieve the ideal operation requirements. Moreover, the tractor system is complicated, the operation is cumbersome, professional drivers are required, and the flexibility is poor. , low work efficiency

The manual steering hydraulic power tractor has a compact structure and small overall length, width and height. To meet the requirements of different loads and different speeds and other working conditions, most of the functions of this type of vehicle are realized by manpower or other means, which not only is cumbersome to operate, but also leads to low work efficiency, and causes certain safety hazards to operators during the work process

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