The present invention relates to aeronautical engineering and specifically to rotors of aircraft in the manufacture of helicopters. A coaxial lifting system that display increased reliability and reduced weight is solved by such a coaxial lifting system including a reducing gear with two shafts rotating in opposite directions on which are mounted rotor hubs, two swashplates that are connected to one another and movable in the axial direction, and which are kinematically linked to guides of blades. The guides of the blades of the upper rotor hub are connected to the upper swashplate by rockers mounted on a slide block located above the upper rotor hub. Guides of the blades of the lower rotor hub are connected by tie rods directly to the lower swashplate. The radius of the guides on the upper rotor hub are smaller than that on the lower rotor hub. The lower swashplate is connected to the control systems of the collective and cyclical pitch by three tie rods and the slide block is connected to the control system of the differential pitch of the upper rotor by means of a tie rod located inside the shaft of the upper rotor.
Coaxial lifting system
2016-02-24
Patent
Electronic Resource
English
IPC: | B64C AEROPLANES , Flugzeuge |
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