| 摘要 |
The adaptor for screwing or unscrewing a thread connecting element (2), comprising a body (10) joined, at its upper end, to a unit (1) for driving the body (10) in rotational and translational movement comprises an arrangement for centering the body (10) on the threaded connecting element (2), an interconnection between the body (10) and the threaded connecting element (2) in terms of rotational and translational movement, means for temporarily interconnecting in terms of rotational movement the means for connecting in terms of translational movement and the body (10), and a hydraulic distributor (18) mounted on the body (10).
|
