Drive arrangement for helicopter, has fixed support detached from crankshaft housing during power failure of power path such that crankshaft housing is coupled with drift by another power path of transmission

摘要

The arrangement has an electric motor coupled with a transmission that comprises two power paths. An output end of the transmission is connected with a drift (5), and a motor shaft (3) of the motor is coupled with one of the power paths of the transmission. A rotary crankshaft housing (4) is coupled with the other power path of the transmission. A fixed support is detached from the crankshaft housing during power failure of the former power path such that the crankshaft housing is coupled with the drift by the latter power path of the transmission. The transmission is designed as an eccentric gear, a wolfrom gear, a wave gear or a cycloidal gear.