| 摘要 |
A cutter dredger with a rotary cutter adjacent the mouth of a suction pipe, in which a second vibratory system balances the first vibratory system comprised by the rotating cutter and its shaft when they encounter resistance during dredging. The drive is applied to the two vibratory systems at their point of interconnection, to reduce the strain on the drive train. The drive may be mechanical, intermediate the length of a torsion shaft, or hydraulic. If hydraulic, a common pump drives motors individual to the two vibratory systems and accumulators are disposed between each pair of the pump and motors. In a compact hydraulic embodiment, the drive and the two driven systems are concentrically interconnected. |
