Indretning og fremgangsmåde til overføring af en mekanisk kraft til drivning af en presseindretning til pressefittings

The invention is based on the technical problem of improving the pressing in of large press fittings, said problem being solved by a device for transmitting a mechanical force for driving a pressing device for press fittings, having a storage container (4) for hydraulic fluid, having a pump cylinder...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	GRÜNKEMEIER, Uwe, RISCHEN, Christian, ROSENTHAL, Jörg
Format:	Patent
Sprache:	dan
Schlagworte:	BLASTING COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR COMBINED OPERATIONS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HAND TOOLS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MACHINE TOOLS MANIPULATORS MECHANICAL ENGINEERING METAL-WORKING NOT OTHERWISE PROVIDED FOR OTHER WORKING OF METAL PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING TRANSPORTING UNIVERSAL MACHINE TOOLS WEAPONS
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Beschreibung
Zusammenfassung:	The invention is based on the technical problem of improving the pressing in of large press fittings, said problem being solved by a device for transmitting a mechanical force for driving a pressing device for press fittings, having a storage container (4) for hydraulic fluid, having a pump cylinder (8), having a working cylinder (12), having a first line (14) for connecting the storage container (4) to the pump cylinder (8), having a second line (16) for connecting the pump cylinder (8) to the working cylinder (12), and having a third line (18) for connecting the working cylinder (12) to the storage container (4), wherein means (20) for preventing a return flow into the storage container (4) are provided in the first line (14), wherein means (22) for preventing a return flow into the pump cylinder (8) are provided in the second line (16), wherein switching means (24) for opening and closing the third line (18) are provided, and wherein the swept volume (VA) of the working cylinder (12) is configured to be greater than the swept volume (VP) of the pump cylinder (8). The invention also relates to a corresponding method.