Helicopter umbrella stand rotor wing one-rotation three-movement parallel driving device

Abstract

The invention relates to a helicopter umbrella stand rotor one-rotation three-movement parallel driving device. The device comprises an umbrella stand rotor mechanism, a movable table, a base, RPS type driving rods, two SPS type driving rods, an engine, a telescopic universal transmission shaft, a ball rod and a spring; the umbrella stand rotor wing mechanism comprises a main shaft, a sleeve, n umbrella rods, n paddles and an auxiliary driving mechanism; the movable table is rotationally connected with the main shaft, fixedly connected with the auxiliary driving mechanism and connected with a ball rod cylindrical pair; the base is fixedly connected with the engine and is connected with the ball rod cylindrical pair; the three driving rods are circumferentially distributed, the two ends of each driving rod are hinged to the base and the movable table respectively; two ends of the telescopic universal transmission shaft are connected with a motor driving shaft and the main shaft to drive the main shaft to rotate; the auxiliary driving mechanism drives the n paddles to synchronously tilt; the spring abuts against a movable table eccentric sleeve and a ball rod boss, and loads of rotor wings are distributed to the base. The flight direction and speed of a helicopter can be changed, lift force can be increased, the engine is installed on the base, the rotor mechanism is light, the structure is simple, and stability is good.

Description

technical field [0001] The invention relates to the technical field of helicopters, in particular to a parallel drive device for one-rotation and three-shifting of the rotor of a helicopter umbrella stand. Background technique [0002] Helicopters have the advantages of good maneuverability, variable direction flight, hovering and fixed-point rotation, and vertical take-off and landing on small sites or ship platforms. They are widely used in transportation, national defense, rescue, energy, agriculture, forestry, tourism and other fields. The rotor system is the most characteristic and most critical symbolic part of the helicopter. The level of rotor technology has also become one of the key indicators to measure the advanced degree of helicopters. In this regard, scholars have carried out research on technological innovation design. [0003] In recent years, patents on the rotor system include: Patent CN101961559B discloses a rotor support device for a model airplane hel...

AI Technical Summary

Problems solved by technology

[0004] Although the above-mentioned prior art has its own characteristics, there are still the following inherent defects in the existing helicopter rotor technology: the rotor heading control mechanism is complicated, there are too many components, and the transmission chain is long; many components that rotate with the rotor main shaft are exposed outside the cabin, and waste resistance Large area, easy to vibrate and be damaged; these defects are the bottleneck hindering the development of helicopter technology

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