Foldable coaxial double-rotor aircraft and control method thereof

Abstract

The invention discloses a foldable coaxial double-rotor aircraft and a control method thereof. The foldable coaxial double-rotor aircraft comprises an aircraft body, a rotor system mounting base, an upper rotor action motor, a lower rotor actuation motor, an actuation motor connecting part, a foldable upper rotor part, a foldable lower rotor part, an upper rotor variable-pitch mechanism, a lower rotor variable-pitch mechanism, foldable landing gears and airborne equipment. The foldable coaxial double-rotor aircraft is characterized in that the aircraft body is in a column shape, and the outside surface is provided with a groove along the bus direction towards the interior of the aircraft body; the foldable upper rotor, the foldable lower rotor and the foldable landing gears are respectively folded into the groove along the bus direction of the aircraft body through self root hinges; the upper rotor variable-pitch mechanism and the lower rotor variable-pitch mechanism are used for independently completing the variable-pitch operation. By adopting the foldable coaxial double-rotor layout plan, the foldable coaxial double-rotor aircraft has the advantages that by extending and accommodating the foldable double rotors and the foldable landing gears, the aircraft can complete flight operation in a normal coaxial rotor state under the working condition; under the non-working condition, the size is smaller, and the manufacturing, transportation, carrying and storage are convenient.

Description

technical field [0001] The invention relates to the field of coaxial dual-rotor aircraft, in particular to a foldable coaxial dual-rotor aircraft and a control method thereof. Background technique [0002] Because the coaxial dual-rotor aircraft does not need the tail rotor to provide balance torque, it has a smaller volume than the single-rotor helicopter. Compared with the multi-rotor aircraft, in addition to being small in size, it also has higher energy efficiency. , Aerial surveillance and other application fields are increasingly occupying an important position. [0003] Although the coaxial dual-rotor aircraft has many advantages, the existing coaxial aircraft has a large volume due to the use of fixed rotors that are radially installed with the fuselage as the center, which usually brings problems for manufacturing, transportation, carrying and storage. Many questions. [0004] The existing coaxial dual-rotor aircraft usually adopts a fully differential or semi-dif...

AI Technical Summary

Problems solved by technology

[0004] The existing coaxial dual-rotor aircraft usually adopts a fully differential or semi-differential rotor pitch-changing mechanism and has a complex structure. During the pitch-changing process, the upper and lower rotor pitch-changing mechanisms will interact with each other. Under the coupling effect, its control The efficiency is low, and it may even affect the flight efficiency of the aircraft

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