ELECTROMECHANICAL DRIVE FOR CONTROLLING ACTIVE SHUTTER OF HELICOPTER ROTOR BLADE Russian patent published in 2019 - IPC B64C27/615 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aviation, in particular to devices for reduction/damping of oscillations (vibrations) of helicopter rotors. Electromechanical drive for control of the helicopter rotor blade active shutter consists of an electric motor comprising a stator and a rotor installed in the inner cavity of the body, a reduction gear, a reducer outlet and an output lever of the drive. Angular position sensor is installed on engine rotor to control engine and, at the same time, by recalculation, which determines angular position of output lever of drive. Reducer is connected to the motor rotor to reduce the motor rotor torque at the moment of the output link of the reduction gear which, due to the rigid connection, transmits torque to the output lever of the drive and then through the hinged joint to the active flap. Output lever of the drive is connected to the active blade flap directly or by means of intermediate parts.

EFFECT: higher drive specific moment, obtaining of poly-harmonic flap oscillations.

1 cl, 3 dwg