Unmanned Aerial Vehicle Based on Coaxial Dual Rotors

Abstract

The invention discloses an unmanned aerial device based on coaxial dual rotors, which belongs to the technical field of unmanned aerial vehicles, and includes: a motor assembly, a rotor assembly, a variable pitch assembly, a load compartment and a landing gear. Wherein, the rotor assembly includes a first rotor group, a second rotor group and a central fixed shaft, and the central fixed shaft passes through the first rotor group, the central vertical slot and the second rotor group in sequence, and the motor assembly can rotate around the central fixed shaft. The first rotor group and the second rotor group are driven to rotate respectively, and a GPS signal receiving transmitter is installed on the signal end; the flight control module, navigation module and power module are built in the load compartment, and the landing gear is fixed under the load compartment , the variable pitch component is sleeved on the fixed end of the central fixed shaft, so that the variable pitch operation of the rotor can be realized only by driving one rotor group to rotate relative to the other rotor group through one variable pitch component, and the single-layer variable pitch design simplifies Variable pitch operation structure, simple overall structure, easy maintenance and high reliability.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, in particular to an unmanned aerial device based on coaxial dual rotors. Background technique [0002] Unmanned UAV, referred to as "UAV", is an unmanned UAV controlled by radio remote control equipment and its own program control device. There is no cockpit on board, but it is equipped with autopilot, program control device, information collection device and other equipment. The personnel on the ground, on the ship, or at the remote control station of the parent aircraft track, locate, remotely control, telemeter and digitally transmit it through radar and other equipment. It can take off like an ordinary UAV under radio remote control or be launched into the air with a booster rocket, or it can be brought into the air by the parent aircraft for flight. UAVs are often used for inspections of mountainous areas and transmission lines across large rivers, as well as line inspecti...

AI Technical Summary

Problems solved by technology

[0004] It can be seen that most of the existing coaxial dual-rotor UAVs use the full variable pitch operation of the upper and lower rotors to change the flight state of the UAV. However, the full variable pitch operation of the upper and lower rotors leads to the complex structure of the above-mentioned UAVs, and the number of steering gears is mostly. Difficult to maintain, low reliability

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