| 摘要 |
A device (2) for handling drill string components (10) in respect of a drill rig (1), said device including: - gripping means (9) for gripping a first drill string component (10) to be threaded on to or off from a second drill string component (12) being part of a drill string which is partly drilled into a rock formation, and - a handling unit (8) which includes said gripping means (9), and which is movable between a drill string position (D) and a loading position (L) wherein a drill string component can be brought into or taken out from said gripping means. The handing unit (8) includes auxiliary- engagement means (11) for aligning said gripped first drill string component (10) to essentially in line with an axial direction defined by said second drill string component (12). Said gripping means as well as said auxiliary engagement means (11) are adjustable for gripping drill string components of different dimensions with maintained alignment of gripped drill string components. The invention also relates to a rock drill rig including such a device. |
