Pneumatic folding apparatus of variable-wing sweepback angle suitable for aeronaval unmanned aerial vehicle

Abstract

The invention discloses a pneumatic folding apparatus of a variable-wing sweepback angle suitable for an aeronaval unmanned aerial vehicle. The folding apparatus comprises a folding wing support, a left wing driving assembly, a right wing driving assembly and a tucking-expansion transition assembly; and the left wing driving assembly and the right wing driving assembly are symmetrically installed at two ends of the folding wing support, and the tucking-expansion transition assembly is installed on the fixed plate of a frame assembly. The left and right wing driving assemblies are respectively provided with a self-locking composition, so when the wing driving assemblies arrive the tucking or expansion position, the positions of the wing driving assemblies can be fixed by inserting self-locking shafts into self-locking through holes, thereby the tucking and expansion positions of wings can be reliably maintained. The apparatus allows the tucking and the expansion of the wings to be controlled through adjusting the sweepback angles of the wings according to different work environments, so the gather adaptability of unmanned aerial vehicles in different fluid medium environments is increased.

Description

technical field [0001] The present invention relates to a driving device for a wing of an unmanned aerial vehicle, more particularly, a pneumatic folding device suitable for changing the sweep angle of the wing of an amphibious unmanned aerial vehicle across the sea and air. Background technique [0002] UAV is the abbreviation of unmanned aerial vehicle, and the English abbreviation is UAV (Unmanned Aerial Vehicle). [0003] The most important requirement for the design of the UAV is to be as light as possible while the fuselage system is strong enough. However, UAVs under various mission load requirements leave very limited space and quality quotas for motion transmission mechanisms. It is necessary to flexibly and efficiently convert basic engineering driving motions, such as high-speed rotation, into favorable controlled motions. The basic aviation transmission methods include direct drive, proportional amplification drive, electric servo drive and hydraulic servo drive...

AI Technical Summary

Problems solved by technology

[0006] The wings of current UAVs are generally fixed structures, and the sweep angle is generally not adjustable. The wings cannot be folded and unfolded according to the specific application environment (underwater or in the air) to meet the environmental requirements, and it has the function of folding wings. The driving device of the folding wing of the UAV is also mostly driven by motor or hydraulic pressure. The structure of the driving device is relatively complicated, which increases the weight of the overall structure.

Images