Helicopter coaxial biconical rotor parallel manual device

Abstract

The invention relates to a helicopter coaxial double-cone rotor parallel manual device, which includes a rotor group, a parallel mechanism, a forward and reverse rotation mechanism, a variable cone mechanism and a spring; the rotor group includes a core rod, an inner and outer jacket, a tie rod group, an upper and The lower blade set, the upper and lower connecting rod sets, the upper and lower rings; the upper and lower blade sets are rotationally connected with the inner and upper ends of the jacket; the parallel mechanism is connected in parallel with the rotor set, and the hand-operated crank drives the rotor set to swing and telescope; forward and reverse The rotating mechanism drives the coaxial double-linked rotor to rotate forward and reverse through the inner and outer jackets, upper and lower large gears, intermediate wheels and upper and lower gears; the cone-changing mechanism drives the core rod, upper and lower rings and upper and lower connecting rod groups. Changing the angle between the blades and the axis of the rotor group changes the lift and flight speed. The control mechanism of the invention is simple and lightweight, and can change the flight direction, speed and lift flight. It has the characteristics of fast speed, large rotor lift, balanced anti-torque, simple structure, short fuselage, centered center of gravity, aerodynamic symmetry, small rotation diameter, Good stability and other advantages.

Description

Technical field [0001] The invention relates to the technical field of helicopters, and in particular to a helicopter coaxial double-cone rotor parallel manual device. Background technique [0002] Compared with traditional single-rotor helicopters, coaxial twin-rotor helicopters have many advantages and have become an advanced model leading the development of helicopters in the world today. The rotor system is the most distinctive and critical iconic component of the helicopter. [0003] In recent years, patents on rotor systems include: Patent CN101961559B discloses a model helicopter rotor support device that uses V-shaped brackets to absorb shock waves generated by the helicopter, in order to reduce the vibration of the helicopter body. Patent CN101204992B discloses a helicopter coaxial dual-rotor speed differential device in order to achieve yaw control of the coaxial dual-rotor helicopter. Patent CN101376433B discloses a helicopter rotor control method and system, wh...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned existing technologies have their own characteristics, the existing helicopter rotor technology still has the following inherent defects: the rotor heading control mechanism is complicated, there are too many components, and the transmission chain is long; the coaxial double-rotor heading control mechanism is more complicated.

Many components that rotate with the rotor main shaft are exposed outside the cabin, with a large area of ​​waste resistance and easy to be damaged and rotted; long blades are prone to flutter and loud noise; The load capacity is weak, not suitable for high-speed rotation; the fuselage swings synchronously with the rotor main shaft, the flight flexibility is poor, people are prone to dizziness, and it is difficult to lock the target; the bevel gear driving the coaxial dual rotor forward and reverse has high noise, large vibration, and complicated manufacturing , low load capacity, easy to wear

Images