Drive unit for driving ramming parts under water
AssigneeBomag-Menck GmbH
InventorHans Kuehn
Life of this patent
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Abstract
For driving of ramming parts under water, a first ramming device is suspended on the supporting element and a second ramming device is suspended on a further supporting element, a submergible electrohydraulic drive unit is located laterally near or under one of the ramming device and connected with both ramming devices by hose conduits, the ramming devices with the drive unit are lowered so that at least one ramming device is placed on one ramming part and after driving it in over a predetermined path it is transferred to another ramming part, while the other ramming device drives further the first ramming part or a further ramming part, and both ramming devices are driven one after the other or simultaneously with one another by the same drive unit.
Claims12
A submergible electrohydraulic drive unit for underwater ramming devices comprising a housing having a throughgoing central receiving space for receiving at least a part of a ramming device, upper and lower supporting plates releasably mounted on the ramming device, an outer wall connecting said supporting plates with one another, and an inner wall which surrounds said receiving space;
- a plurality of pump units arranged between said inner wall and said outer wall at circumferential distances from one another and each including a hydraulic pump and an associated electric motor;
- and switching means for subdividing supply of a pressure medium produced by said hydraulic pumps to at least one of two ramming devices.
Dependencies are inferred from the claim text.