METHOD AND APPARATUS FOR CONTROLLING ROCK DRILLING

METHOD AND APPARATUS FOR CONTROLLING ROCK DRILLING

Method and apparatus for controlling rock drilling with a percussion device (7) belonging to a rock drill (1) to deliver stress waves to rock through a tool (9) by pushing the tool against the rock by means of a feed motor (3) and rotating simultaneously the tool by means of a rotation motor, whereb...

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Hauptverfasser: VIITANIEMI, JARNO, PELTONEN, VESA, SEPPAELAE, JUHO, SAARELA, MARKUS
Format: Patent
Sprache:eng ; fre
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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creator VIITANIEMI, JARNO
PELTONEN, VESA
SEPPAELAE, JUHO
SAARELA, MARKUS
description Method and apparatus for controlling rock drilling with a percussion device (7) belonging to a rock drill (1) to deliver stress waves to rock through a tool (9) by pushing the tool against the rock by means of a feed motor (3) and rotating simultaneously the tool by means of a rotation motor, whereby the maximum feed force is determined, pressure medium is supplied to the feed motor (3) and to the rotation motor (8) and the feed force is controlled according to the drilling conditions. The feed force is controlled on the basis of the feed speed and the rotation torque. The apparatus has a load control valve which controls the feed.
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subjects 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
title METHOD AND APPARATUS FOR CONTROLLING ROCK DRILLING
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