Rotating structure and folding wing driven by shape memory alloy

Abstract

The invention discloses a rotating structure and a folding wing driven by shape memory alloy, and belongs to the field of rotating structures. The structure comprises a rotating shaft, a fixing piece and at least one shape memory alloy wire assembly. Each group of shape memory alloy wire assembly comprises a first shape memory alloy wire group and a second shape memory alloy wire group; the fixing piece comprises a vertical rod; one end of the first shape memory alloy wire group is connected with the rotating shaft, the other end of the first shape memory alloy wire groupis connected with the vertical rod, and the first shape memory alloy wire group is lengthened by a preset length at a preset temperature and can drive the rotating shaft to rotate by a preset angle around the axis of the rotating shaft in a first rotating direction when heated; one end of the second shape memory alloy wire group is connected with the rotating shaft, the other end of the second shape memory alloy wire group is connected with the vertical rod, the second shape memory alloy wire group is lengthened by a preset length at a preset temperature and can drive the rotating shaft to rotate by a preset angle around the axis of the rotating shaft in a second rotating direction when heated, and the first rotating direction and the second rotating direction are opposite; the preset lengthened lengths of the shape memory alloy wire assemblies are different. According to the invention, the two rotating parts can relatively rotate at a preset angle and reset.

Description

technical field [0001] The present application relates to the technical field of rotating structures, in particular to a rotating structure and a folding wing driven by a shape memory alloy. Background technique [0002] With the continuous development of society, the development of the aviation industry is getting better and better. Aviation refers to the navigation activities of manned or unmanned aircraft in the earth's atmosphere. Aircrafts commonly used in aviation include airplanes and the like. [0003] Aircraft refers to a power plant with one or more engines to generate forward thrust or pull, and the fixed wings of the fuselage to generate lift, which are heavier than air aircraft flying in the atmosphere. Aircraft consists of wings, fuselage, empennage, landing gear, control system and power plant. Among them, the wing is one of the important components of the aircraft, and its main function is to generate lift, forming good stability and maneuverability togeth...

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present application provides a folding wing driven by a rotating structure and a shape memory alloy, which can solve the problem of relative rotation preset angle and reset between two rotating parts

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