Folding wing mechanism

Abstract

The invention discloses a folding wing mechanism. The folding wing mechanism comprises folding wings and a folding mechanism which is used for providing power for the deploying of the folding wing andlimiting the deploying absolute limit; the folding mechanism comprises a limiting buffer column; and when the folding wings deploy to the absolute limit, the folding wings are blocked by the limit buffer column. According to the folding wing mechanism, the upper wing and the lower wing are driven by a central arm torsion spring to simultaneously deploy, torsion arms are respectively assembled with torsion spring mounting holes on the upper wing root and the lower wing root, the installation is simple and reliable, and the environmental dependency is small; a lock pin assembly is used as a locking mechanism after the wing surface opens, the structure is simple, the size is small, the reliability is high, the replacement is easy, the unlocking is simple, the wings can be quickly folded after the unmanned aerial vehicle is recycled, and recovery of the unmanned aerial vehicle is completed; the mature product needle roller end bearings are used to reduce friction, the frictional resistance of the opening process is reduced, and the rapidity and the synchronism of the opening process are ensured; and the whole folding mechanism is high in integration degree, simple in mechanism, smallin size, simple in assembly and simple and convenient to operate, and meets the requirements of the cylindrical launching unmanned aerial vehicle for folding wings.

Description

technical field [0001] The invention belongs to the technical field of aircraft, and in particular relates to a folding wing mechanism. Background technique [0002] The barrel-launched folding-wing UAV belongs to the field of aircraft technology. The barrel-launched folding-wing UAV is small in size, can be carried by an individual soldier, quickly enters the combat zone, and has flexible tactics and strong maneuverability. It is suitable for anti-terrorism and urban warfare. [0003] At present, the U.S. military has individual loitering missiles that use a barrel-type launch folding-wing UAV solution. Among them, the "Switchblade" series has a barrel bomb with a total weight of less than 3kg and a warhead of about 320g. Vehicle-based. The more mature product of the Israeli "Hero" series of short-range loitering missiles is the "Hero" 30, which is as powerful as the "Switch Knife". It also adopts a barrel-type launch folding UAV solution. [0004] The CH-901 series of lo...

AI Technical Summary

Problems solved by technology

Some folding wings are complex in design and do not balance the relationship between stiffness and weight; in order to improve the assembly stiffness of the wing, some unfolding mechanisms generally adopt a large installation preload, so that the sliding friction resistance is relatively large during the wing unfolding process. As a result, the wing deployment process is slow and the deployment process is asynchronous; some locking mechanisms are complex in structure and unreliable in locking, or the wings shake a lot after locking, resulting in unstable flight; some locking mechanisms cannot be replaced or the cost of replacement higher

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