Full-automatic hydraulic reversing device

The invention provides a full-automatic hydraulic reversing device which comprises an oil inlet pipeline with an oil inlet, an oil outlet pipeline with an oil outlet, a gas inlet pipeline, and an exhaust pipeline communicated with the oil outlet pipeline. An oil cylinder is arranged between the oil...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MIAO JIANZHONG, MIAO JIANGHAO, MIAO WENZHONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides a full-automatic hydraulic reversing device which comprises an oil inlet pipeline with an oil inlet, an oil outlet pipeline with an oil outlet, a gas inlet pipeline, and an exhaust pipeline communicated with the oil outlet pipeline. An oil cylinder is arranged between the oil inlet pipeline and the oil outlet pipeline; an oil way circulation cavity and a gas circulation cavity which are not communicated with each other are formed in the oil cylinder; auxiliary reversing valves are arranged at the two ends of the oil cylinder respectively; a main reversing valve used forcommunicating the oil inlet and the oil outlet is arranged between the two auxiliary reversing valves; the gas inlet pipeline and the exhaust pipeline are connected to the two sides of the oil cylinder respectively and can be communicated with the gas circulation cavity; and gas flowing into the gas circulation cavity from the gas inlet pipeline can flow into the exhaust pipeline in a one-way modedue to the change of the