Foldable variable-pitch propeller for fixed-wing unmanned aerial vehicle

Abstract

The invention discloses a foldable variable-pitch propeller for a fixed-wing unmanned aerial vehicle, and relates to the technical field of unmanned aerial vehicles. The foldable variable-pitch propeller comprises a shell, a cavity is formed in the shell, bearings are embedded in the two sides of the shell, the bearings are symmetrically distributed relative to the shell, and the bearings are parallel to each other; propeller clamps are installed on the two sides of the shell in a matched mode, and the two sets of propeller clamps are coaxial; the two ends, close to each other, of the two setsof propeller clamps penetrate through the bearing and extend into the cavity, and clamping grooves are formed in the two ends, away from each other, of the two sets of propeller clamps in the axial direction; and blades are hinged into the clamping grooves in a matched mode. The foldable variable-pitch propeller is novel in structure and simple and reliable in structure, and the problem that thefixed-pitch blades have adverse effects on the flight performance of the fixed-wing unmanned aerial vehicle is effectively solved.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicle equipment, in particular to a foldable variable-pitch propeller for a fixed-wing unmanned aerial vehicle. Background technique [0002] UAV is an unmanned and autonomous aircraft. The image of UAV in people's impression generally stays on a multi-rotor aircraft. In fact, as long as it has out-of-control autonomous flight, can automatically identify and judge Those who respond should be included in the category of unmanned aerial vehicles, including unmanned multi-rotor aircraft, helicopters, fixed-wing aircraft and even hot air balloons. At present, there has been no major breakthrough in battery technology. Most of the man-machines use fixed-wing aircraft, and use internal combustion engines as driving power, and fixed-wing aircraft have a flight speed and higher survivability that multi-rotor aircraft cannot match. [0003] Most of the current civilian fixed-wing UAVs use fixed-pitch blad...

AI Technical Summary

Problems solved by technology

[0004] A foldable variable-pitch propeller for a fixed-wing unmanned aerial vehicle proposed by the present invention solves the problem that the fixed-pitch blade has an adverse effect on the flight performance of a fixed-wing unmanned aerial vehicle

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