Lifting jack for stage with sound dampening flanges - has drive motor and gearbox mounted in tube-stand fitted inside rope-cylinder supported on rotary bearings

摘要

The lifting jack has a motor (2) and a gearbox (20) placed inside a tube-stand (1,23) for driving the rope-cylinder (6). The stand is fitted inside the rope-cylinder (6). The rotary bearings (5,10) are mounted between the stand and the rope-cylinder. The gearbox outlet is connected to one cylinder end, while the stand extends through the other cylinder end. The gearbox is fastened at the stand (1) using sound-dampened flanges (21,22,23). The gearbox (20) is mounted inside the tube (22) which is fitted telescopically in the tube (23). Sound damping material is inserted between the tubes (22,23). USE/ADVANTAGE - Compact construction reduces the size of the lifting jack. Sound damping materials are used for noise reduction.