Traveling Machinery and Hydraulic Steering System thereof

Abstract

The invention discloses a hydraulic steering system of a walking machine, comprising a hydraulic pump and a steering cylinder, further comprising a mode switching valve, a proportional multiplexing valve for electrically controlling steering and a steering gear for manually controlling steering; When the steering is manually controlled, the mode switching valve is in the first working position sothat the steering gear is connected to the steering cylinder, and when the steering is electrically controlled, the mode switching valve is in the second working position so that the proportional multiplex valve is connected to the steering cylinder. The electric control steering is realized by a proportional multi-way valve, the manual control steering is realized by steering gear, and the switching between the electric control steering and the manual control steering is realized by mode switching valve. The utility model has the advantages of simple structure, strong versatility, high reliability of the system, small component quantity, small volume, thus saving installation space and cost. The invention also discloses a walking machine comprising the hydraulic steering system.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a hydraulic steering system of a walking machine. In addition, the present invention also relates to a walking machine including the above-mentioned hydraulic steering system. Background technique [0002] With the explosive development of automobile unmanned driving technology, unmanned driving technology has also been well developed in construction machinery, agricultural and forestry machinery and special vehicles and other walking machinery. As a development direction of construction machinery, unmanned driving The technology has been widely used, and it has a very obvious effect on improving the personal safety of the staff and the work efficiency of the entire project, especially in areas prone to landslides, strong radiation, explosive areas, dangerous mine areas, deep-sea operation areas and even space Exploration areas and other dangerous work areas have a very wide...

AI Technical Summary

Problems solved by technology

[0004] However, the existing electro-hydraulic dual-control hydraulic steering gear integrates integrated valve blocks that can realize corresponding functions through the combination of various cartridge valves, and then cooperates with ordinary hydraulic steering gears to form a steering system, but the integrated valve block requires non-standard design. And the processing is still very complicated. In addition, the valve block itself is relatively large, and the host needs to plan the installation position for it.

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