| 摘要 |
Drill rig comprising a carrier (1), a boom (2) and a feed device (3) rotatably connected with the boom by means of a rotation device and intended for a rock drilling machine (4). The rotation device comprises a hydraulic cylinder (5) between the feed device (3) and a first link (8). The first link is in addition with the hydraulic cylinder (5) rotatably connected with the feed device (3) and with a second link (9). The second link is furthermore rotatably connected with the boom (2). By means of the hydraulic cylinder the feed device can be swung about an axis of rotation (10) from a position at least 30 DEG to one side of a vertical line (12) to a position at least 90 DEG to the other side of the vertical line. |
