Full-hydraulic-control anti-explosion walking driving hydraulic system

2013 
The invention discloses a full-hydraulic-control anti-explosion walking driving hydraulic system and particularly relates to a full-hydraulic-control anti-explosion walking driving hydraulic system for dust removing of pipelines or walking driving of a coal mine monorail and belongs to the field of engineering machines. A driving hydraulic cylinder and a gate valve hydraulic cylinder are arranged and matched with a full-hydraulic-control control valve and a valve block, and therefore stepping walking is achieved. Due to the fact that no electric appliance element is used, the full-hydraulic-control anti-explosion walking driving hydraulic system has high using value on occasions needing explosion prevention, wherein the occasions include pipeline walking and an underground coal mine. Meanwhile, driving by utilizing a hydraulic cylinder is large in driving force, high in reliability and low in cost compared with driving by utilizing a hydraulic motor. A sequence valve is used for controlling a hydraulic-control one-way valve to replace a one-way sequence valve to achieve sequential actions, and therefore the hydraulic-control one-way valve is slow in temperature rising and high in system reliability under high pressure.
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