| 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 partly drilled into a rock formation, - support means (7) for fastening the device onto the drill rig (1), - a handling unit (8), which is movably connected to said support means (7), which includes said gripping means (9), and which is movable between a drill string position (D) and a loading position (L). The handling unit (8) includes auxiliary engagement means (11,11',11") for engagement with said second drill string component (12) in the drill string position (D) and means (17) for variation of angle of said gripping means and thereby said gripped first drill string component (10) in order to allow said alignment in the drill string position (D). The invention also concerns a method and a drill rig. |
