| 摘要 |
A unit for cutting slits comprises a frame, a screw working element, a thrower, a driving mechanism. The working element is made as a rope with cutting elements built thereinto. Said cutting elements are arranged on the rope with a space, and on the frame a distributing plate is disposed in the space between the cutting elements. The unit is equipped with disk knives and a plough body. The latter is mounted on the frame in front of the screw working element under which a chisel is arranged. Said chisel on a leg is mounted hingedly and receives forced oscillations which are excited by a hydraulic vibrator through a resilient element. |
