Rotary drilling machine head

The utility model discloses a rotary drilling machine head which comprises a rotating shaft, a drilling barrel and a sealing cover, and the upper end and the lower end of the sealing cover are correspondingly and fixedly connected with the rotating shaft and the drilling barrel respectively. The sid...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	TANI SATOSHI, DENG YUAN, CHEN XIAOLEI, FU JIANGHONG, LIAO XIAOHUI, YOO CHANG-JONG, ZHANG ZHIYI, WANG HAN, LYU MINXIAO, RAO XIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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