SCREW PROPELLER ELECTROMECHANICAL DRIVE OF THE VESSEL Russian patent published in 2017 - IPC B63H23/24 

FIELD: electricity.

SUBSTANCE: screw propeller electromechanical drive of the vessel comprise: a vessel drive line component with the screw propeller, stern, shaft and axial bearing; a reduction gear unit with output and some input shafts; a spur gear-wheel with two girt gears mounted on the output shafts in the reduction-gear housing; servo drives; servo drives control modules; a main control unit; a shaft-position output encoder of the each servo drive; a reduction gear unit shaft-position output encoder connected by an interface bus to the main control unit, along with that, the teeth of each of the two wheel girt gears are formed by cycloidal surface interacting with the gear wheel made in the form of the cylindrical eccentric with the bearing installed on it forming eccentric- cycloid transfer; reduction gear unit input shafts are installed around each wheel girt gear.

EFFECT: electric motor drive redundancy capability for the rapid change, the capability for the vessel movement in case of the breakdown of the electric motor drive part and energy efficiency improvement of the electromechanical drive work when slow-speed moving and at average speed by virtue of the electric motor drive shutdown capability.

10 cl, 11 dwg