E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 44/06 (2006.01) E21B 44/00 (2006.01)
Patent
CA 2682961
The present invention relates to a method and a device for controlling at least one drill parameter when drilling in rock with a drilling machine. During drilling, an impulse-generating device uses an impact means to induce shock waves in a tool working against the rock, a pressure level for a shock-wave-generating pressure is controlled during the drilling, and said drilling machine includes a damping chamber that can be pressurized. The contact of the drilling machine against the rock is affected at least partially by the pressure prevailing in said damping chamber. When the pressure in said damping chamber exceeds said first level and is below said second level, the percussion pressure is controlled as a function of the pressure in said damping chamber.
La présente invention concerne un procédé et un dispositif de réglage d'au moins un paramètre de forage lors du forage de roches à l'aide d'une machine de forage. Au cours du forage, un dispositif de génération d'impulsions utilise un moyen de génération de chocs pour induire des ondes de choc dans un outil utilisé contre la roche et le niveau de la pression de génération d'ondes de choc est réglé. Ladite machine de forage comprend une chambre d'amortissement pouvant être pressurisée. Le contact de la machine de forage contre la roche est affecté au moins partiellement par la pression existant dans ladite chambre d'amortissement. Lorsque la pression dans ladite chambre d'amortissement dépasse ledit premier niveau et se situe en dessous dudit second niveau, la pression de percussion est réglée en fonction de la pression dans ladite chambre.
Leu Marcus
Olsson Magnus
Sinnerstad Jonas
Atlas Copco Rock Drills Ab
Fetherstonhaugh & Co.
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