ROTOR HUB Russian patent published in 2022 - IPC B64C27/35 B64C27/41 B64C27/45 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aviation, in particular to the designs of rotors. The main rotor sleeve consists of a hub, pins, elastic elements, a support crown, mounting sprockets, axial hinges, forks for attaching the blades and drivers for controlling the angle of the blades. The hub is mounted on the main rotor shaft and transmits the torque from the shaft to the bearing ring through the fingers screwed into the hub and put on the fingers by elastic elements touching the surfaces of the holes in the bearing ring. The torque from the bearing crown to the trunnions of the axial hinges is transmitted by the upper sprocket. The main rotor sleeve is made elastic, with the ability to implement the necessary offset of the axis of the axial hinge from the axis of rotation of the screw, the angle of the main rotor taper, the vertical offset of the semi-rigid mount relative to the top of the main rotor cone.

EFFECT: reduced terms of pre-flight and post-flight inspections, maintenance, increased reliability of on-board equipment and payload.

1 cl, 3 dwg