E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 19/24 (2006.01) E21B 7/02 (2006.01) E21B 19/086 (2006.01)
Patent
CA 2687405
The invention relates to an arrangement for employing a drill steel centralizer (6) travelling on a feed beam (1) of a rock drill machine (2). The drill steel centralizer (6) has a pressure fluid-operated actuator for closing a transfer opening intended for a drill rod (4) during drilling, whereby pressure fluid is fed into the actuator during drilling.
La présente invention concerne un système pour utiliser un centreur de forage (6) en acier qui se déplace sur une poutrelle d'alimentation (1) de machine perforatrice de roche (2). Le centreur de forage (6) en acier comporte un actionneur à fluide sous pression destiné à fermer une ouverture de transfert prévue pour une tige de forage (4) au cours du forage, l'actionneur étant alimenté en fluide sous pression au cours du forage.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
Sandvik Mining And Construction Oy
LandOfFree
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