Variable-angle autorotation type rotary excavating drill bit

The utility model discloses a variable angle autorotation type rotary excavating drill bit in the technical field of root pile drill bits, the drill bit structure comprises a shell and a rotating shaft, a plurality of drill bit installation shafts annularly arranged on the outer side of the rotating...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	QIU HAOCI, LI YANGSEN, WU QINBIN, YIN YUAN, LI RONGJU, CHEN XIAOXIANG, WENG LANXI, CHI JINMING, LIN SHAOYUAN, LIN KAI, ZHANG WENXIANG, LI HONGJIN, FU BENZHAO, LUO KEWEI, HUANG WENSHENG, YU XINMIN, JIANG NENGMING, LIANG JIESHENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING EMBANKMENTS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS HYDRAULIC ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SOIL SHIFTING UNDERGROUND OR UNDERWATER STRUCTURES
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