FIELD: transport.
SUBSTANCE: invention relates to aircraft engineering, particularly, to rotor vibration killer. Rotor 3 of helicopter 1 comprises main rotor hub 5 revolving about axis A and having several blades 9, partially hollow drive shaft 6 secured to helicopter drive. Rotor 3 is equipped with vibration killer 15 provided with weight 17 and elastically deformable element 16 jointed to weight 17 and supported by shaft 6. Element 16 extends, at least partially, inside shaft 6 and parallel with axis A. Weight 17 vibrated at rotor rotation at such frequency that prevents transmitting oscillations caused by rotation of hub 5 and blades 9 to shaft 6. Additionally, rotor 3 comprises supporting body fitted between shaft 6 and elastic element 16 and integrated therewith. Weight 17 comprises main body 26 and plates 27 attached thereto to adjust frequency of oscillations of said weight 17. Rotor comprises flow deflector 10 attached to hub 5. Element 16 and weight 17 are arranged inside chamber 30 formed by deflector 10 and shaft 6.
EFFECT: decreased oscillations of helicopter rotor.
10 cl, 2 dwg
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