| 摘要 |
A drilling machine for earth processing includes a drill drive (10) for bringing into rotary motion a drill string (1), and a continuous flow swivel (20) for passage of building material from the hose (6) for building material to inside of the drill string(1), at that the continuous flow swivel (20) includes the first tube connection element (21) and the second tube connection element (22) for the drill string (1). To provide reliable supply of building material, in particular concrete, to inside of the drill string, the continuous flow swivel (20) includes a rotary device (30) for active turn of the second tube connection element (22) with respect to the first tube connection element (21), for compensation of rotation of the drill drive (10) the rotary device (30) is arranged with possibility of counter-rotary motion synchronously with rotary motion of the drill drive (10), the drill string (1) includes a lock (2) placed under the drill drive (10) for instrument and at least partially placed over the drill drive (10) extender (3), and the continuous flow swivel (20) is placed on the upper end of the extender (3). |
