The invention discloses a rotating shaft structure and a rim propeller adopting the same. A rotating shaft is of a hollow and trumpet-shaped structure, and comprises a large end part, a small end part and a gradual change part connecting the large end part and the small end part; the front section of the inner cavity of the large end part is used for fixedly mounting a propeller, and the rear section is provided with an accommodating cavity of a rectification piece; and when the rotating shaft rotates, the propeller promotes fluid to enter from the large end part, the rectification piece installed at the rear end of the propeller absorbs vortex energy in the fluid and converts the vortex energy into thrust, and according to the Venturi principle, the fluid is sprayed out from the small end part after being pressurized and accelerated through the gradual change part. According to the rotating shaft structure, the fluid jet propulsion efficiency is improved through the Venturi effect; and the rim propeller adopting the rotating shaft combines the structural characteristics of the rotating shaft and the propeller, the problems of narrow installation space of a high-power driving device in the rim propeller and utilization of fluid vortex energy in a pipeline are well solved, the small size of the rim propeller is guaranteed, and meanwhile the propelling power and the propelling efficiency of the rim propeller are greatly improved.

    本发明公开了一种转轴结构及采用该转轴的轮缘推进器,所述转轴呈中空、喇叭状结构,包括有大端部、小端部及连接大端部与小端部之间的渐变部;大端部内腔前段用于固定安装螺旋桨,后段设有整流片的容纳腔;转轴旋转时,螺旋桨促使流体从大端部进入,安装在螺旋桨后端的整流片吸收流体中涡能,将其转化为推力,根据文丘里原理,流体经过渐变部增压提速后从小端部喷出。本发明所涉及的转轴结构利用文丘里效应提高了流体喷射推进效率;而采用该转轴的轮缘推进器结合转轴及螺旋桨的结构特点,极好地解决了轮缘推进器中大功率的驱动装置安装空间狭小及管道中流体涡能利用的问题,既保证轮缘推进器小体积的同时,又极大地提高了其推进功率及推进效率。


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    Title :

    Rotating shaft structure and rim propeller adopting same


    Additional title:

    一种转轴结构及采用该转轴的轮缘推进器


    Contributors:

    Publication date :

    2021-06-01


    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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