Oil-dynamic pitch-variable quadrotor unmanned plane

Abstract

The invention discloses an oil-dynamic pitch-variable quadrotor unmanned plane comprising a body and a power rotor system. The power rotor system comprises two first power rotor assemblies and two second power rotor assemblies. Intersection points of a support rod are symmetry points, the two first power rotor assemblies are symmetrically disposed at two ends of the support rod, and the two secondpower rotor assemblies are symmetrically disposed at the remaining two ends of the support rod. The first power rotor assemblies and the second power rotor assemblies include drive mechanisms fixed on the support rod by brackets, transmission mechanisms in transmission connection with the drive mechanisms, and blade pitch-regulating mechanisms and rotor mechanisms above the transmission mechanisms. The oil-dynamic pitch-variable quadrotor unmanned plane solves the problems of small load, short driving time and poor wind resistance of conventional electric multi-rotor unmanned planes, also solves the problems of large vibration, poor transmission accuracy, and the like of a single engine, and is simple in the overall structure, and easy to maintain.

Description

Technical field [0001] The present invention relates to the technical field of unmanned aerial vehicles, more specifically, the present invention relates to an oil-powered variable-pitch four-rotor unmanned aerial vehicle. Background technique [0002] With the continuous development of the UAV industry, UAVs are used in various fields. The demand for UAVs in the domestic and foreign markets is also increasing. At the same time, the endurance and load of UAVs have been proposed. higher requirement. Most of the existing UAVs use batteries as power and fly by increasing the speed of the motor. The energy density of the battery and the driving force of the motor severely limit the load of the aircraft, making its application field relatively narrow. [0003] Chinese patent CN 105270619 A announced "a kind of oil-powered variable pitch four-rotor unmanned aerial vehicle". The invention includes power system-transmission system, rotor-control system and frame system, rotor-control syst...

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to provide a four-rotor UAV with variable pitch. The four-rotor UAV adopts four aviation engines to provide power sources for each rotor mechanism separately, which solves the problem of conventional The electric multi-rotor UAV has small load, short flight time and poor wind resistance. At the same time, it solves the problems of large vibration of a single engine and poor transmission accuracy. The overall structure is simple to install and easy to maintain.

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