Coaxial double-rotor helicopter core and helicopter

Abstract

The invention discloses a coaxial double-rotor helicopter core and a helicopter. The coaxial double-rotor helicopter core comprises an upper rotor and a lower rotor which are coaxially connected through a rotary shaft, a server for controlling the upper rotor and the lower rotor to swing and motors for controlling the upper rotor and the lower rotor to rotate oppositely. The rotary shaft comprises an inner shaft body and an outer shaft body, the inner shaft body is connected with the upper rotor, the outer shaft body is connected with the lower rotor, and the upper rotor and the lower rotor are connected through a swash plate assembly. The swash plate assembly comprises an upper swash plate and a lower swash plate. Each of the upper swash plate and the lower swash plate comprises an inner control panel and an outer control panel which are connected through a knuckle bearing. The inner control panel of the upper swash plate is connected with the upper rotor through first connecting rods and rotates reversely along with the upper rotor. The outer control panel of the lower swash plate is connected with the server and controlled by the server to be linked vertically. The inner control panel of the lower swash plate and the outer control panel of the upper swash plate are in linkage through second connecting rods and rotate forwards along with the outer shaft body. By the adoption of the coaxial double-rotor helicopter core, the linkage synchronous adjustment of the upper rotor and the lower rotor is achieved, the torque generated in the rotation process of the two rotors can be effectively counteracted, and the helicopter is more stable.

Description

technical field [0001] The invention relates to the field of helicopters, in particular to a coaxial twin-blade helicopter core and the helicopter. Background technique [0002] Since the coaxial unmanned helicopter has no tail rotor and relies on the upper and lower rotors to reverse at the same speed, it has a compact structure, a symmetrical start-up layout and high hovering efficiency, and is widely used in various fields. With the development of modern investigation and detection, video surveillance and multimedia shooting, micro-coaxial drones have quickly occupied a place with their unique advantages. [0003] Although coaxial unmanned helicopters are more and more widely used, there are still some problems, especially for the steering problem in the hovering state. For example, a balance bar is usually set above the upper rotor. When adjusting the upper and lower rotors to turn the helicopter, the balance bar is always kept horizontal due to the action of gravity. D...

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the present invention is to provide a coaxial coaxial twin-propeller helicopter core and helicopter, which solves the technical problems of poor steering effect and unstable flight in the hovering state of the existing unmanned helicopter, and realizes a more stable flight effect, making the aircraft more responsive without reducing stability

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