Single-degree-of-freedom foldable sail

Abstract

The invention discloses a single-degree-of-freedom foldable sail. The single-degree-of-freedom foldable sail comprises a framework assembly, a flexible skin and a wire drive assembly, wherein the flexible skin is fixed onto the framework assembly, and the wire drive assembly is connected with the framework assembly; the framework assembly is composed of a driving framework, a follower framework and a fixed framework which are arranged in sequence from top to bottom; the follower framework is composed of a first aluminum alloy rod piece and a first carbon fiber rod piece; the driving frameworkcomprises a second aluminum alloy rod piece, a second carbon fiber rod piece, an expanding wire fixing shaft, a folding wire fixing shaft and a rotating disc; the fixed framework comprises a third carbon fiber rod piece, a first threaded rod, a connecting rod assembly and a second threaded rod. The single-degree-of-freedom foldable sail has the advantages that the area of the sail is changed by expanding different numbers of the frameworks to adapt to different wind speeds and wind directions on the sea surface, so that the sail has better thrust performance and a more stable sailing attitude,and all the frameworks are folded together to achieve a large folding rate so that a sailing device can be converted from a sail drive mode to a propeller propulsion mode or a dive navigation mode.

Description

technical field [0001] The invention relates to a wing sail for a marine vehicle with multi-movement modes, in particular to a single-degree-of-freedom foldable wing sail with an adjustable area and a large folding rate. Background technique [0002] At present, in order for marine vehicles to conduct long-term on-site observation of the air-sea interface, it is necessary to use natural energy wind energy as the driving force to enable the vehicle to have long-term navigation capabilities on the surface. In addition, when the vehicle needs to switch to propeller propulsion or In the submersible mode, the wing sail needs to have a larger folding rate. Most of the current sail telescopic devices adopt the scissor type, multi-stage screw nut superimposition, and hydraulic lifting rod to fold and deform the sail. The above devices are relatively bulky and take up a lot of space, which does not meet the lightweight design of marine vehicle deformation devices. principle, and the...

AI Technical Summary

Problems solved by technology

Most of the current sail telescopic devices adopt the scissor type, multi-stage screw nut superimposition, and hydraulic lifting rod to fold and deform the sail. The above devices are relatively bulky and take up a lot of space, which does not meet the lightweight design of marine vehicle deformation devices. principle, and the folding rate is limited

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