Reamer with self-centralizing and guiding functions

The invention provides a reamer with self-centralizing and guiding functions. The reamer includes a spindle, a plurality of gear wheels, a plurality of centralizing ribs, one or more gear wheel reinforcing ribs, a base and a centralizing barrel, wherein the base and the centralizing barrel are succe...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZHANG JIE, WANG XUEJUN, YE WENJIAN, XU YUNCHUAN, LANG MINGCHUN, QIU DEJING
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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