Electrical or pneumatic motor driven ring spanner and screw plate combination for screwing hard anchor screws and connections, has taper toothed wheel that is implemented in form of ring and provided in housing

摘要

The combination has a taper toothed wheel that is implemented in the form of a ring and provided in a housing (1), where the combination is driven by the toothed wheel. A firmly-fitting intermediate-ring is inserted in the toothed wheel and used as a retainer for screw inserts and thread cutting-inserts. A drive-taper toothed wheel (3) is fixed on a drive shaft (8) and driven via an electric motor (6) by a friction clutch.