One-point double-shaft multi-propeller aircraft

Abstract

The invention relates to a one-point double-shaft multi-propeller aircraft which comprises a fixed bracket, a nacelle, a power shaft, a power rotor, a power motor, an attitude rotor and an attitude motor, wherein the fixed bracket is a transverse and longitudinal crossed bracket which is horizontally arranged, the nacelle is coaxially and fixedly installed on the lower end of the fixed bracket, the power shaft is coaxially installed on the upper end of the fixed bracket, the power rotor which is parallel to the fixed bracket is installed on the power shaft, the power rotor is driven to rotate by the power motor which is installed on the lower part of the power rotor, a coaxial double-propeller structure is adopted, and double propellers are overlapped and vertically arranged. The one-point double-shaft multi-propeller aircraft has the advantages of simple structure, safety, reliability, space saving, convenience in movement and field operation and large air bearing capacity, the posture is controlled by an upper propeller, power is supplied by a plurality of lower propellers, and the work requirements of aerial photos, communication and the like can be fully satisfied.

Description

technical field [0001] The invention belongs to the field of unmanned aerial vehicles, in particular to a one-point two-axis multi-blade aircraft. Background technique [0002] There are four flight control methods for rotorcraft in the world today: [0003] One is the single-rotor structure, which is adopted by most helicopters in the world; [0004] The second is the coaxial double propeller structure, representative models include Russian card series models, such as card-50, card-28, etc.; [0005] The third is the structure of two shafts and two propellers, the representative model is the American C-47 Chinook helicopter; [0006] The fourth is the multi-rotor structure, which is mainly used in the field of small UAVs. Its characteristics are: the attitude control of the aircraft is realized by adjusting the rotational speed of each rotor. On the same plane, there are mainly four-rotor, six-rotor, eight-rotor and other models, all of which use electronically controll...

AI Technical Summary

Problems solved by technology

[0015] When multi-rotors adjust the attitude of the aircraft, the whole machine must be tilted at a certain angle to adjust the running direction. For the observation pod that is rigidly connected to the aircraft body, it must also be tilted at a corresponding angle. If the wind is strong, The body must frequently adjust its attitude to maintain stability in the air. If it is used as an aerial observation platform, the accuracy of its observation will inevitably be affected.

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