Drive device for rotatable operation of a drill bit of a down-the-hole hammer

The invention relates to a rotary device (101) for a down-the-hole hammer (1), which rotary device is accommodated in a rotation motor housing (3) and mounted behind a drill housing (2) for transferring a torque to a drill bit (8) and a pressurized drive fluid (22) to a striking mechanism (4) for th...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	Hörman, Magnus, Egerström, Fredrik, Fridsell, Magnus, Öhnström, Martin
Format:	Patent
Sprache:	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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