AIRSCREW HUB WITH AUTOMATIC SWASHPLATE Russian patent published in 2021 - IPC B64C27/32 B64C27/605 

FIELD: aviation.

SUBSTANCE: invention relates to the field of aviation, in particular to the airscrew assemblies of rotary-winged aircraft. The airsrew hub contains a swashplate, made in the form of a plate located at the axis of the airscrew shaft with controlled drives for its movement along the axis of the shaft and deflection of its plane at two angles. The airscrew shaft is made in the form of a power ring covering the plate of the swashplate. The plate has three holes distributed around the circumference, through which three corresponding screws are passed, connected to the control drives mounted on a fixed base. The nuts of the screws are located in the holes of the plate and are connected to the plate by means of two-axis cardan joints. The ring of the plate is connected to the scissor of one of the airscrew blades by means of a three-axis ball joint that can freely move along one of the axes of the joint, which is oriented along the radius of the peripheral ring of the plate, and with the scissors of the remaining airscrew blades, the peripheral ring of the plate is connected by means of a three-axis ball joint that has mobility in two coordinates along the plane of the plate.

EFFECT: invention provides a reduction in the overall dimensions of the bushing, streamlining that and reducing the weight of the assembly.

3 cl, 7 dwg