The invention discloses a double-rotor pump-jet propeller. The pump-jet propeller comprises a rotating shaft, end covers and a shell. The pump-jet propeller is characterized in that: the rotating shaft is of a hollow and trumpet-shaped structure, is movably fixed in the end covers on the two sides of the shell through a bearing, 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; a first propeller is fixedly mounted at the large end part or the gradual change part; a first power driving device used for driving the rotating shaft to rotate is fixedly installed in the space between the rotating shaft and the shell; a second propeller is contained in the rotating shaft and located at the front end or the rear end of the first propeller; the second propeller is movably connected into a supporting seat on a flow guide cover through a connecting rod, and the flow guide cover is fixedly installed on the shell; and the connecting rod is driven by a second power driving device to rotate. The invention provides the high-power, high-efficiency and low-noise double-rotor pump-jet propeller which is designed by fully utilizing the Venturi effect and the structural characteristics of a pipeline.

    本发明公开了一种双转子泵喷推进器,包括有转轴、端盖及壳体,其特征在于:所述转轴呈中空、喇叭状结构,通过轴承活动固定在壳体的两侧的端盖中,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;大端部或渐变部固定安装有第一螺旋桨;所述转轴与壳体之间的空间固定安装有用于带动转轴旋转的第一动力驱动装置;所述转轴中容纳有第二螺旋桨,处于第一螺旋桨前端或后端;所述第二螺旋桨由连杆活动连接在导流罩上的支撑座中,所述导流罩固定安装在壳体上;所述连杆由第二动力驱动装置带动旋转。本发明提供了一种充分利用文丘里效应及其管道的结构特点而设计的大功率、高效率、低噪音的双转子泵喷推进器。


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    Title :

    Double-rotor pump-jet propeller and advancing tool adopting same


    Additional title:

    一种双转子泵喷推进器及采用该推进器的行进工具


    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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