| 摘要 |
<p>A drilling machine comprising a supporting structure having a guide tower (2) provided with elements for guiding the sliding (21), upon which a rotating head (23) for sequentially moving drill rods, to which are given both the movements of rotation and the movements of advancement in the ground and of successive return, slides. The machine also comprises a loading device (3) associated with this guide tower, wherein a plurality of drill rods in battery is positioned and a guide device (4) for maintaining centered the drill rod present in battery and/or drawn from the loading device and associated to the rotating head in the desired direction of drilling.</p> |
