公开(公告)号：EP1558854A4

公开(公告)日：2007-08-22

申请号：EP03777618

申请日：2003-10-15

申请人： STOLLE MACHINERY CO LLC

发明人： JABLONSKI REX

IPC分类号： F16D1/08 ,  B41F17/22 ,  B41F27/10 ,  B41L29/00 ,  F16D20060101 ,  F16D1/00

CPC分类号： F16D1/0805 ,  B41F17/22 ,  B41F27/105

摘要： A hydraulic clamp (12) for being mounted on a shaft (10). The clamp may comprise a clamp body (15); an aperture in the clamp body (15) for receiving the shaft (10), the aperture extending in an axial direction of the clamp body (15) from a first end to a second end; a recess formed in the clamp body (15) and substantially surrounding the aperture, for receiving a pressure medium; the clamp body (15) having at the first end a pressure cylinder (30) communicating with the recess (36) for pressurizing the pressure medium and thereby deforming the recess (36) sufficiently to secure the clamp (12) to the shaft (10); the pressure cylinder (30) having a corresponding piston (32) arranged for axial movement toward the second end for pressurizing the pressure medium. The piston (32) and cylinder (30) may be threaded such that rotation of the piston drives the piston into the cylinder toward the second end to pressurize the pressure medium. The piston (32) may comprise a flange (40), disposed on the piston (32) for engaging the clamp body (15) for limiting axial movement of the piston (32) toward the second end. The clamp body (15) may further comprise a stop (45), disposed for engaging the piston (32) and for limiting axial movement of the piston (32) away from the second end. The stop (45) may have an aperture arranged axially of the piston (32), the aperture permitting a tool to access the piston by being inserted generally in the axial direction.