Wing folding mechanism for unmanned plane

Abstract

The invention relates to a wing folding mechanism for an unmanned plane. The wing folding mechanism comprises a first sleeve, a second sleeve, a support shaft, a locking part, a tractive part and a connecting rod, wherein the first sleeve is provided with a first cavity; the second sleeve is provided with a second cavity; the support shaft is arranged in the first cavity in a slidable manner; the locking part is mounted on the side face of the first sleeve and has a locking state and an unlocking state; the tractive part is fixed in the second cavity and can move back and forth in the shaft axis direction of the first sleeve; the connecting rod is used for connecting the support shaft and the tractive part; the wing folding mechanism has an unfolding state and a folding state. On one aspect, part of the folding mechanism enters the support shaft of the second cavity, so that the folding mechanism is in the unfolding state; on the other aspect, under the action of the tractive part, the connecting rod enables the first sleeve to rotate relative to the end face of the second sleeve, so that the folding mechanism is in the folding state, as a result, both the unfolding and folding states are realized without a wheel gear serving as a transmission part; in addition, the wing folding mechanism is compact in structure and stable in motion, and few requirements are required for the torque of a motor.

Description

technical field [0001] The invention relates to a component of a UAV wing, in particular to a UAV wing folding mechanism. Background technique [0002] UAV is a general term for unmanned aerial vehicles, which are equipped with autopilot, program control device and other equipment. The personnel on the ground, on the ship, or at the remote control station of the parent aircraft track, locate, remotely control, telemeter and digitally transmit it through radar and other equipment. Compared with manned aircraft, it has the advantages of small size, low cost, and convenient use. The wing-folding UAV can change the shape of the wing by folding under different flight requirements: the wings are fully expanded for take-off or cruise, and the wings are retracted for high-speed or maneuvering flight and storage to save space. [0003] At present, most of the UAV wing folding mechanisms under research and development in China use a gear meshing mechanism: a dual-motor drive pinion ...

AI Technical Summary

Problems solved by technology

This kind of gear meshing mechanism has problems such as uncompact motion mechanism, large contact force between teeth, high requirements for motor torque, and unstable movement of the mechanism when the wings are folded.

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