Downhole drill and shock absorber thereof

The invention discloses a shock absorber used for a downhole drill, which has a central through hole in axial direction thereof and comprises a first jointing disk connected with a knocker, a second jointing disk connected with a power head and a bolt assembly connecting the first jointing disk and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI ZHONGYIN, ZHAO ZHANGCHUN, JIANG YONGJUN, JIANG GUOPING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING BRAKES CLUTCHES COUPLINGS FOR TRANSMITTING ROTATION EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS THERMAL INSULATION IN GENERAL WEAPONS
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