Schmiersystem für ein in axialer Richtung hin- und herbewegbares Kraftwerkzeug

摘要

The drive mechanism for imparting reciprocating movement to the tool plunger (42) includes first (30) and second (38) drive members. The first drive member (30) is mounted on an eccentric formation (24) which is in turn mounted on a drive shaft (18) thereby to impart a wobbling movement to the first drive member. The second drive member (38) is in the form of a piston mounted for reciprocating movement within a bore formed in the first drive member (30). The second drive member (38) is pivotally connected to the plunger (42). The second drive member (38) has a helical groove (70) in its exterior surface. A lubricant is forced along the groove in part due to the reciprocating movement of the second drive member in the bore of the first drive member.