Rock drilling unit and method of changing drill rods

The invention relates to a rock drilling unit and a method of changing drill rods in a rock drilling unit. The rock drilling unit (1) comprises a feed beam (2), a retainer device (14), a rock drilling machine (4) and at least one clamp (15). The clamp is operable without driving force of the drillin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	PYÖRNY, ILMO
Format:	Patent
Sprache:	eng ; fre ; ger
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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Beschreibung
Zusammenfassung:	The invention relates to a rock drilling unit and a method of changing drill rods in a rock drilling unit. The rock drilling unit (1) comprises a feed beam (2), a retainer device (14), a rock drilling machine (4) and at least one clamp (15). The clamp is operable without driving force of the drilling unit. The clamp comprises a space (21) for receiving one single drill rod (11). The clamp is positioned in a side position (16) which is parallel to a drilling axis (D) and is at a transfer distance from the drilling axis.