DEVICE AND METHOD FOR TRANSMITTING A MECHANICAL FORCE FOR DRIVING A PRESSING DEVICE FOR PRESS FITTINGS

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...

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Hauptverfasser: RISCHEN, CHRISTIAN, GRUNKEMEIER, UWE, ROSENTHAL, JORG
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Sprache:eng ; fre
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creator RISCHEN, CHRISTIAN
GRUNKEMEIER, UWE
ROSENTHAL, JORG
description 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. L'objectif de l'invention est d'améliorer la compression de raccords à compression de grande dimension. Cet objectif est atteint par un dispositif de conversion d'une force mécanique pour l'entraînement d'un dispositif de compression de raccords à compression, comportant un réservoir (4) de liquide hydraulique, un cylindre de pompage (8), un cylindre de travail (12), une première conduite (14) reliant le réservoir (4) au cylindre de pompage (8), une deuxième conduite (16) reliant le cylindre de pompage (8) au cylindre de travail (12), et une troisième conduite (18) reliant le cylindre de travail (12) au réservoir de stockage (4). Des moyens (20) servant à empêcher un retour de flux vers le réservoir de stockage (4) se trouvent dans la première conduite (14) et des moyens (22) servant à empêcher un retour de flux vers le cylindre de pompage (8) se trouvent dans la deuxième conduite (16), et des moyens de commutation (24) servent à l'ouverture et à la fermeture de la troisième conduite (18), la cylindrée (VA) du cylindre de travail (12) étant plus grande que la cylindrée (VP) du cylindre de pompage (8). L'invention concerne également un procédé associé.
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The invention also relates to a corresponding method. L'objectif de l'invention est d'améliorer la compression de raccords à compression de grande dimension. Cet objectif est atteint par un dispositif de conversion d'une force mécanique pour l'entraînement d'un dispositif de compression de raccords à compression, comportant un réservoir (4) de liquide hydraulique, un cylindre de pompage (8), un cylindre de travail (12), une première conduite (14) reliant le réservoir (4) au cylindre de pompage (8), une deuxième conduite (16) reliant le cylindre de pompage (8) au cylindre de travail (12), et une troisième conduite (18) reliant le cylindre de travail (12) au réservoir de stockage (4). Des moyens (20) servant à empêcher un retour de flux vers le réservoir de stockage (4) se trouvent dans la première conduite (14) et des moyens (22) servant à empêcher un retour de flux vers le cylindre de pompage (8) se trouvent dans la deuxième conduite (16), et des moyens de commutation (24) servent à l'ouverture et à la fermeture de la troisième conduite (18), la cylindrée (VA) du cylindre de travail (12) étant plus grande que la cylindrée (VP) du cylindre de pompage (8). 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Des moyens (20) servant à empêcher un retour de flux vers le réservoir de stockage (4) se trouvent dans la première conduite (14) et des moyens (22) servant à empêcher un retour de flux vers le cylindre de pompage (8) se trouvent dans la deuxième conduite (16), et des moyens de commutation (24) servent à l'ouverture et à la fermeture de la troisième conduite (18), la cylindrée (VA) du cylindre de travail (12) étant plus grande que la cylindrée (VP) du cylindre de pompage (8). 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The invention also relates to a corresponding method. L'objectif de l'invention est d'améliorer la compression de raccords à compression de grande dimension. Cet objectif est atteint par un dispositif de conversion d'une force mécanique pour l'entraînement d'un dispositif de compression de raccords à compression, comportant un réservoir (4) de liquide hydraulique, un cylindre de pompage (8), un cylindre de travail (12), une première conduite (14) reliant le réservoir (4) au cylindre de pompage (8), une deuxième conduite (16) reliant le cylindre de pompage (8) au cylindre de travail (12), et une troisième conduite (18) reliant le cylindre de travail (12) au réservoir de stockage (4). Des moyens (20) servant à empêcher un retour de flux vers le réservoir de stockage (4) se trouvent dans la première conduite (14) et des moyens (22) servant à empêcher un retour de flux vers le cylindre de pompage (8) se trouvent dans la deuxième conduite (16), et des moyens de commutation (24) servent à l'ouverture et à la fermeture de la troisième conduite (18), la cylindrée (VA) du cylindre de travail (12) étant plus grande que la cylindrée (VP) du cylindre de pompage (8). L'invention concerne également un procédé associé.</abstract><oa>free_for_read</oa></addata></record>
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subjects BLASTING
DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
FLUID-PRESSURE ACTUATORS
FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS
HAND TOOLS
HEATING
HYDRAULICS OR PNEUMATICS IN GENERAL
LIGHTING
MANIPULATORS
MECHANICAL ENGINEERING
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
WEAPONS
title DEVICE AND METHOD FOR TRANSMITTING A MECHANICAL FORCE FOR DRIVING A PRESSING DEVICE FOR PRESS FITTINGS
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