Six-rotor unmanned aerial vehicle with foldable vehicle arms

Abstract

The invention discloses a six-rotor unmanned aerial vehicle with foldable vehicle arms, and relates to the technical field of unmanned aerial vehicles, the six-rotor unmanned aerial vehicle comprises a center main body, the side surface of the center main body is fixedly connected with a fixing rod, the side surface of the end part of the fixing rod is fixedly connected with a rotating shaft, and the inner bottom wall of the center main body is fixedly connected with a sliding mechanism. According to the unmanned aerial vehicle, by arranging the spring columns, when the unmanned aerial vehicle is used, the central axis of the rotating rod and the central axis of the fixed rod can coincide, the unmanned aerial vehicle is unfolded to facilitate flying, when the unmanned aerial vehicle is not used, the spring columns can be pressed to enable the rotating rod to be folded upwards, the size of the unmanned aerial vehicle is reduced, and the purpose of facilitating transportation and storage is achieved; according to the unmanned aerial vehicle, the inclination direction of a shaking column can be adjusted by adjusting two electric telescopic rods, so that the direction of a camera at the bottom of a rotating ball is controlled, meanwhile, the camera is not in direct contact with the unmanned aerial vehicle, and the influence caused by vibration of the unmanned aerial vehicle can be effectively reduced after the camera is connected with the unmanned aerial vehicle through damping sponge.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a six-rotor unmanned aerial vehicle with foldable arms. Background technique [0002] UAVs are widely used in civilian use, especially in aerial photography, agriculture, plant protection, selfie, express transportation, disaster relief, observing wild animals, monitoring infectious diseases, surveying and mapping, news reporting, power inspection, disaster relief, film and television shooting, making romance, etc. field. [0003] With the increasing application of drones, the number of arms of drones is also increasing, and the design requirements for the mechanical structure of multi-rotor drones are also getting higher and higher. Due to the high rotation frequency of the multi-rotor UAV motor, in many UAV design schemes, it is impossible to avoid the problem that the motor rotation frequency is higher than the natural frequency of the UAV design. As a result...

AI Technical Summary

Problems solved by technology

Due to the high rotation frequency of the multi-rotor UAV motor, in many UAV design schemes, it is impossible to avoid the problem that the motor rotation frequency is higher than the natural frequency of the UAV design. As a result, when the UAV is flying, when the motor rotates When the frequency is close to the natural frequency of each order of the drone as a whole, the modes of the supporting structure of the drone are excited to generate vibrations, and what’s more, it directly causes the drone to be greatly unstable, which can lead to “fried aircraft”. In the six-rotor In the UAV design, due to the increase of the arms, the natural frequency of the UAV will drop. This situation is especially common. takes up a lot of space

[0004] At present, when the existing drone is in use, since the camera is fixedly installed under the drone, the angle cannot be adjusted when the camera is used for shooting, and the camera is subject to a large vibration during the flight. It is not conducive to the stability of the camera, and the current drones take up a lot of space when not in use, which is not convenient for transportation and storage

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