| 摘要 |
<p>A cartridge for drill rods (12), comprising two rotors (3, 4) arranged to be rotated in opposite directions with respect to each other. Each rotor comprises control plates with gaps for the drill rods (12), and guides (5, 6) for guiding the drill rods (12) along a spiral path about the shafts of the rotors (3, 4). According to the invention, worm gears (7, 8) are provided for rotating the rotors (3, 4) about their shafts, the spiral shafts of the worm gears being interconnected coaxially into a drive shaft to which a rotation motor (9, 10) is connected to rotate both rotors simultaneously.</p> |
