Hydraulic clamping device, has intermediate unit transmitting clamping force screwed with piston at end and with threaded bolt at another end, and retaining pin engaging in recesses of intermediate unit

摘要

The device (10) has a hydraulic piston (13) transmitting a clamping force to an end of a threaded bolt (11) to be clamped over an intermediate unit (14), where the clamping force lies at the piston. The piston and the intermediate unit are surrounded by a housing (15). The intermediate unit transmitting the clamping force is screwed with the piston at an end (18) and with the bolt at another end (19). A narrowing (21) is attached to the housing adjacent to the end (18) of the intermediate unit. A retaining pin (22) engages in recesses (23) of the intermediate unit.