The invention discloses an opposite-rotat wheel rim propeller which comprises a shell, a front guide pipe and a rear guide pipe. The front guide pipe is of a hollow and trumpet-shaped structure, and a first propeller is fixedly mounted in an inner ring of the large end part; the rear guide pipe is of a cylindrical annular structure, and a second propeller is fixedly installed in an inner ring. The small end part of the front guide pipe is movably butted with the rear guide pipe, and is fixed in end covers on two sides of the shell through bearings; the front guide pipe and the rear guide pipe are driven by power provided by a driving device to rotate oppositely. The Venturi effect and the structural characteristics of pipelines of the Venturi effect are fully utilized, the conventional design is broken through, the layout is reasonable, the contradiction between the high-power stator and rotor and the limited installation space in the rim propeller is well solved, the small size of the rim propeller is guaranteed, meanwhile, the propelling power and propelling efficiency of the rim propeller are greatly improved. In addition, by means of the contra-rotating motion mode of the double propellers, vortex motion energy of fluid is fully utilized, and the propelling efficiency of the propeller is further improved.

    本发明公开了一种对转轮缘推进器,包括壳体、前导管及后导管;所述前导管呈中空、喇叭状结构,大端部内环中固定安装有第一螺旋桨;所述后导管呈圆柱环状结构,内环中固定安装有第二螺旋桨;所述前导管的小端部与后导管活动对接在一起,再通过轴承固定在壳体两侧的端盖中;所述前导管及后导管由驱动装置提供动力带动实现相互反向对转。本发明充分利用文丘里效应及其管道的结构特点,突破常规设计,合理布局,极好地解决了轮缘推进器中大功率的定、转子与有限的安装空间之间的矛盾,在保证轮缘推进器小体积的同时,大大提高了其推进功率及推进效率,且利用双螺旋桨对转的运动方式,充分利用流体的涡动能量,进一步提升了推进器的推进效率。


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    Title :

    Opposite-rotating wheel rim propeller and underwater traveling tool adopting same


    Additional title:

    一种对转轮缘推进器及采用该推进器的水中行进工具


    Contributors:

    Publication date :

    2021-05-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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