Motor-driven type independent steering system of loading machine

Abstract

The invention discloses a motor-driven type independent steering system of a loading machine. The system comprises a steering performing mechanism, a power unit, an electro-hydraulic flow rate control unit and a B solenoid directional valve, wherein the steering performing mechanism comprises a steering device, a steering wheel, a non-return valve, a safety valve, a steering hydraulic cylinder and an oil tank; the power unit comprises an oil tank, a hydraulic pump, a motor, a safety valve and a priority valve. According to the technical scheme, the system has the advantages that a manner of supplying quantitative pressure to a conventional steering system of the loading machine is replaced by the manner of supplying variable pressure based on the steering requirement, namely, the pressure is supplied as the requirement, so that the energy consumption of the steering system of the loading machine can be decreased, and the efficiency of a hydraulic system can be improved. The technical problems of high oil consumption, large emission and large hydraulic loss of the conventional steering system of the loading machine can be solved. The system has the advantages that the energy consumption is decreased, and the efficiency of the hydraulic system is improved.

Description

technical field [0001] The invention belongs to the technical field of steering control systems, and in particular relates to an electric drive independent steering system for a loader. Background technique [0002] The loader is a kind of construction machinery which is widely used. It is mainly used for loading and shoveling bulk materials, and lightly shoveling construction minerals. When the loader is working on the whole machine, it needs to turn the whole machine under frequent load or no load. At present, the loader generally uses the quantitative pump steering system, which supplies the same pressure regardless of the size and speed of the steering, resulting in a large energy loss. Due to the frequent changes in the load of the loader and the wide range of changes, there are problems such as high fuel consumption and large emissions. How to reduce energy consumption is a direction of loader research. [0003] The patent "hydraulic oil circuit, hydraulic steering...

AI Technical Summary

Problems solved by technology

However, the system provides the same pressure to the steering system regardless of the load and the speed of the steering. The remaining flow is difficult to control when it is supplied to the hydraulic system, and there are still many hydraulic losses in the system.

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