| 摘要 |
A boring machine (1) for driving a drill string (8), wherein the boring machine includes: a driving head (6) being movable in an axial direction towards respectively from a holding table (5) for axially driving the drill string (8), a rotator (9) for driving the drill string (8), a drill string chuck (10), at the holding table (5), a second key grip device (12) at the rotator (9). A first sensor arrangement (13) in the region of the holding table (5) for detecting a first rotational position of a key grip 14; 24 of a drill string component (7), a second sensor arrangement (15) for detecting a second rotational position of the second key grip device (12), and a memory (17) for storing data representing the second rotational position. The invention also relates to a method. |
