Double-layered eight-rotor-wing unmanned aerial vehicle

Abstract

The invention discloses a double-layered eight-rotor-wing unmanned aerial vehicle which comprises a body, four upper arms, four lower arms and eight flying mechanisms. The body comprises an upper platform and a lower platform; the four upper arms and the four lower arms are separately arranged on the upper platform and the lower platform; each of the lower arms comprises a first connecting rod, a folding mechanism and a second connecting rod which are successively connected; the eight flying mechanisms are separately arranged on the tail ends of the four upper arms and the four lower arms; each of the flying mechanisms comprises a brushless motor and a rotor wing fixedly connected to the output shaft of the brushless motor; and the rotating ranges of the rotor wings of the eight flying mechanisms are staggered for generating upward lift forces. By adopting a double-layered structure, the arm length of a common eight-rotor-wing unmanned aerial vehicle is reduced, the weight of the structure is alleviated, and the storage space is expanded; meanwhile, the double-layered eight-rotor-wing unmanned aerial vehicle is more stable to control, longer in time of endurance and higher in efficiency, and the safety of inner loads of the body is effectively guaranteed.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a double-deck eight-rotor unmanned aerial vehicle. Background technique [0002] Because of its good mobility, low cost, and good cost-effectiveness, multi-rotor drones are now widely used in various military and civilian fields such as military investigation, geological exploration, forest fire prevention, plant maintenance, and aerial photography. [0003] With the increase in the load requirements of UAVs, there are more and more rotors for UAVs, and there are also various rotor configurations. [0004] In order to increase the load capacity of UAVs, one of the existing multi-rotor distribution schemes has single-layer multi-rotors, but the distance between the adjacent rotors of the single-layer structure is very close, resulting in limited space for assembling the rotors, which limits the size and efficiency of the rotors; another This kind of coaxial multi...

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Problems solved by technology

[0004] In order to increase the load capacity of UAVs, one of the existing multi-rotor distribution schemes has single-layer multi-rotors, but the distance between the adjacent rotors of the single-layer structure is very close, resulting in limited space for assembling the rotors, which limits the size and efficiency of the rotors; another This kind of coaxial multi-rotor scheme, the motor is placed on the upper and lower sides of the same shaft. There is mutual interference between the rotors of this scheme, and the aerodynamic performance is poor. Although the size of the drone is reduced, the maximum performance of the rotor cannot be exerted. efficacy

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