Helicopter coaxial double-rotor wing two-rotation three-movement parallel driving device

Abstract

The invention relates to a helicopter coaxial double-rotor wing two-rotation three-movement parallel driving device. The device comprises a rotor wing mechanism, a movable table, a base, two PSS type driving rods, a PUU type driving rod, two rotating transmission shafts, two engines and a spring. The rotor wing mechanism comprises a movable table, a mandrel, an inner sleeve, an outer sleeve, a pull rod set, an upper paddle set, a lower paddle set, an upper connecting rod set, a lower connecting rod set, a gear set and an auxiliary electric rod. The upper paddle set and the lower paddle set are rotationally connected with the convex circular truncated cones of the coaxial inner sleeve and outer sleeve; the movable table is rotationally connected with the inner sleeve and the outer sleeve; the two ends of each of three driving rods are hinged to the movable table and the base to drive the rotor wing mechanism to swing and stretch out and draw back. the engine are connected with the bases; the two ends of each rotating transmission shaft are connected with an engine shaft and a gear set input shaft to drive the inner sleeve and the outer sleeve to rotate forwards and backwards; the auxiliary electric rod drives the paddle set to automatically tilt through a lead screw, the core rod, the pull rod set and the connecting rod set; the spring distributes rotor loads to the bases from the movable table. The device of the invention has the advantages of high navigational speed, large lift force, balanced reaction torque, simple structure, good stability and the like, and the engine is arranged on the engine base.

Description

technical field [0001] The invention relates to the technical field of helicopters, in particular to a helicopter coaxial double-rotor two-rotation and three-shift parallel driving device. Background technique [0002] Compared with traditional single-rotor helicopters, coaxial twin-rotor helicopters have many advantages and become an advanced model leading the development of helicopters in the world today. The rotor system is the most characteristic and most critical symbolic part of the helicopter. [0003] In recent years, patents on the rotor system include: patent CN101961559B discloses a rotor support device for a model airplane helicopter, which uses a V-shaped bracket to absorb the shock waves generated by the helicopter, in order to reduce the vibration of the helicopter body; patent CN101204992B discloses a helicopter coaxial Double-rotor speed differential device, in order to realize yaw control of coaxial dual-rotor helicopter; patent CN101376433B discloses a he...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technologies have their own characteristics, but the existing helicopter rotor technology still has the following inherent defects: the rotor heading control mechanism is complicated, the components are too many, and the transmission chain is long; the coaxial double rotor heading control mechanism is more complicated; The components are exposed outside the cabin, and the waste resistance area is large, easy to vibrate and be damaged; when the helicopter is tilted, the bending moment of the helicopter's own weight on the rotor main shaft is relatively large, and the bearing capacity of the ball bearing of the rotor main shaft is weak, which is not suitable for high-speed rotation; The main shaft swings synchronously, the flight flexibility is poor, and people are prone to dizziness; the bevel gear driving the coaxial dual-rotor forward and reverse has high noise, large vibration, complex manufacturing, low load capacity, and easy wear

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