| 摘要 |
Device for rock drilling compriding a feed beam (1) along a rock drilling machine is movable to-and-fro, two guides (3, 4) fixed on the beam (1) at a distance from each other for guiding a feeder part (5) which is displaceable in the guides and carrying a drill guide (6). The device comprises one or more supports (7) arranged at the feed beam (1) between the guides (3, 4) and that the support (7) is displaceable in two directions (8, 9) perpendicular to the feed beam (1). |
