Lifting appliance of draw shaft video probe

The invention relates to a lifting appliance of a draw shaft video probe. The technical scheme of the lifting appliance is as follows: a left circular plate (3) and a right circular plate (13) are correspondingly arranged at the left end and the right end of a winding drum body (9), and a hollow sha...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TU FUQUAN, LIU YANZHANG, ZHANG XIAOBO, WANG QIFEI, LIU CHUNYU, ZHAO WEI, HU LIANGZHI, MAO YANG, SHI ZHIJUN, YE YICHENG, DENG LEI, ZHANG ANYU
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CAPSTANS EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS HAULING HOISTING HOISTS LIFTING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS TACKLES, e.g. PULLEY BLOCKS TRANSPORTING WINCHES
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