Rotating cutter and suction sea bed dredger - has two cutter heads counter-rotating around common central axis

摘要

The dredger tears up the sea bed, where not much rock is prevalent. It pumps away the loosened solid and liq. mixture. The device has cutter heads rotating on the sea bed or watercourse, and an adjacent suction aperture. There are two cutter heads (11, 12) able to rotate in opposite directions about a central axis (2). They can have a ground plate (13), covering the circle of rotation, and bearing a head plate (14) on the suction side, leaving the central suction cross-section of the pipe clear. Drive shafts (7), protective pipes (8) and suction pipes (7) can be mounted in a shared shield (10).