Special underground construction device and method for operation of a special underground construction device
AssigneeABI Anlagentechnik-Baumaschinen-Industriebedarf Maschinenfabrik und Vertriebsgesellschaft mbH
InventorsAlbrecht KLEIBL, Christian HEICHEL
Life of this patent
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Abstract
A special underground construction device, in particular pile-driving or drilling device, includes a support frame, on which a holder for a hydraulic working device is arranged, as well as two hydraulic main pumps for making available at least one hydraulic oil volume stream for operation of a held working device, which pumps are connected to the holder by way of lines, wherein a first one of the hydraulic main pumps is driven by a first motor connected to it, and the second of the hydraulic main pumps is driven by a separate, second motor connected to it. Furthermore, a method operates such a special underground construction device.
Claims17
A special underground construction device comprising:
- a support frame (1);
- a holder for a hydraulic working device arranged on the support frame;
- and
- first and second hydraulic main pumps (61, 62) for making available at least one hydraulic oil volume stream for operation of a held working device;
- wherein the first and second hydraulic main pumps are connected, by way of lines (63, 64, 65), to the holder;
- wherein the first hydraulic main pump (61) is driven by a first motor connected to the first hydraulic main pump, and the second hydraulic main pump (62) is driven by a second motor separate from the first motor and connected to the second hydraulic main pump.
Dependencies are inferred from the claim text.