High-speed clamping device for clamping grinding disk on shaft of grinding machine, has actuating element with surface inclined in circumferential direction, where setting pistons are actuatable in axial direction during rotation of element

摘要

The device has a clamping nut (1) screwed on a shaft. A chamber (6) is provided with a hydraulic pressure medium. An escape space is shiftable to the chamber, where the space is formed by an axially running opening (2) in the nut. A disk (7) together with a ring (10) forms an actuating element, which is rotatably arranged relative to the nut. The actuating element includes a surface (8) for axial adjustment of setting pistons (3), where the surface is inclined in a circumferential direction. The pistons are actuatable in an axial direction during the rotation of the actuating element.