The invention provides an annular propeller and a using method thereof, and belongs to the field of propellers, and each propeller blade comprises a blade root part, a blade tip part, a variable skeleton, a memory alloy part and a skin; the two ends of the variable framework in the extending direction are arranged on the blade root portion and the blade tip portion respectively, and a window is formed in the variable framework. The two memory alloy parts are laid on the side face, away from the window, of the variable framework in the extending direction of the variable framework, the memory alloy parts elastically extend after being heated or elastically contract after being cooled, and the width of the window in the extending direction of the variable framework is increased or decreased; the outer surfaces of the memory alloy part and the variable framework are coated with the skin, the window is exposed, and when the memory alloy part contracts due to cold, the skin is tightened; the blade tip vortex is restrained through the annular structure of the propeller blade tip, and the middle window of the annular propeller structure is controlled to be opened or closed through deformation of the memory alloy part after being heated and cooled, so that the propeller reaches the optimal hydrodynamic state under the working conditions of high rotating speed and low rotating speed.

    本发明提出了一种环形螺旋桨及其使用方法,属于螺旋桨领域,桨叶包括叶根部、叶梢部、可变骨架、记忆合金部及蒙皮;可变骨架延伸方向的两端分别设置在叶根部与叶梢部上,可变骨架内开设有窗口;两个记忆合金部沿可变骨架延伸方向敷设在可变骨架远离窗口的侧面,记忆合金部受热发生弹性延展或者受冷发生弹性收缩,并使窗口沿可变骨架延伸方向的宽度增大或者缩小;蒙皮包覆在记忆合金部及可变骨架外表面并露出窗口,当记忆合金部受冷收缩时,蒙皮绷紧;通过螺旋桨叶梢的环形结构抑制叶梢涡,并通过记忆合金部受热受冷后发生形变来控制环形螺旋桨结构的中部窗口打开或闭合,使螺旋桨在高转速和低转速工况下都达到最佳的水动力状态。


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    Title :

    Annular propeller and use method thereof


    Additional title:

    一种环形螺旋桨及其使用方法


    Contributors:
    WU JIAFENG (author) / LIU BING (author) / HU XU (author) / WEI WEI (author) / CAO CHANG (author) / FENG XINGXING (author) / XIE XING (author) / CAI CHEN (author) / CAO XIAOMING (author)

    Publication date :

    2024-06-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING



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