Hydraulic system for drilling machine clamping device safety protection

The utility model discloses a hydraulic system for drilling machine clamping device safety protection. The hydraulic system is characterized by comprising an oil cylinder, an overflow valve, a two-joint multi-way valve, a sequence valve, an overturning oil cylinder, a rear clamping oil cylinder, a b...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG XINGPING, GU CHENGBING, CHEN GUANGMING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a hydraulic system for drilling machine clamping device safety protection. The hydraulic system is characterized by comprising an oil cylinder, an overflow valve, a two-joint multi-way valve, a sequence valve, an overturning oil cylinder, a rear clamping oil cylinder, a bidirectional hydraulic lock and a one-way valve. The two-joint multi-way valve is connected with the oil cylinder and further connected with two ports of the bidirectional hydraulic lock. The overturning oil cylinder is connected with the sequence valve in series, the overturning oil cylinder is connected with the one-way valve in parallel, the overturning oil cylinder and the sequence valve are connected with the rear clamping oil cylinder in parallel, and an oil supply opening and an oil outlet of the parallel oil path are connected with the two ports of the bidirectional hydraulic lock respectively. A first working oil opening of the two-joint multi-way valve is connected into the overflow valve, and one end of