POWER TONGS WITH OPENABLE JAWS

This power tongs with openable jaws may be used for the connection or disconnection of drilling rods on drilling machine, and is powered by hydraulic motor. Compressed air is a power for the clamping of lower jaw and the movement of whole tongs. It is composed of floating upper jaw, automatically ce...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GUO ZHONGSHUN, TANG SHANGZHI, WANG JILAN ET AL
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HAND TOOLS MANIPULATORS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING
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Beschreibung
Zusammenfassung:	This power tongs with openable jaws may be used for the connection or disconnection of drilling rods on drilling machine, and is powered by hydraulic motor. Compressed air is a power for the clamping of lower jaw and the movement of whole tongs. It is composed of floating upper jaw, automatically centralized double-jaw clamper, floating braking belt, reset unit, flexible shifting gear, hanging and moving systems, and automatically opening and closing unit of jaws.