| 摘要 |
<p>The drive has an unlockable non-return valve (14) connecting a pressure chamber (12) of a counter-holding cylinder with a tank (T). A tool part is movable for acceleration by a quick movement cylinder (10) and is subjected to counter holding pressure by a counter-holding cylinder (6). The cylinders are arranged in hydraulic circuits with a counter-holding hydro-machine (30) and a motor (32), where the circuits are separated from each other. A hydro-storage arrangement (26) is provided in a pressure line (24) between one of the hydro-machine or the motor and the chamber.</p> |
