| 摘要 |
<p>A method and an arrangement for controlling the feeding of a rock drilling machine so that the feeding of a drill rod of the rock drilling machine is controlled on the basis of the rotation resistance of the drill rod rotated by a hydraulically operated rotation motor of the machine. In the method, the rotation resistance is determined as a pressure difference acting across the rotation motor on the basis of which the operation of the feed motor is controlled. The arrangement is characterized in that it comprises means for determining the pressure difference acting across the rotation motor and for controlling the supply of the pressure fluid to the feed motor on the basis of said pressure difference.</p> |
