The invention relates to a paddle-rudder matching structure for preventing rudder denudation. The paddle-rudder matching structure comprises a ship body, a propeller is backwards mounted below the tail of the ship body, a rudder is mounted on the ship body behind the propeller, a paddle cap extending backwards is connected to the rear end face of a propeller hub in the center of the propeller, the paddle cap penetrates through the lower portion of the rudder backwards, and a gap is formed between the outer surface of the paddle cap and the bottom face of the rudder; the propeller cap on the rear end face of the center of the propeller extends backwards and penetrates through the rudder, in the working and rotating process of the propeller, a hub vortex generated at the root of the propeller can be drained backwards along the outer wall face of the propeller cap and directly collapses in wake flow behind the rudder, contact between the hub vortex and the rudder is effectively avoided, and the service life of the propeller is prolonged. Therefore, denudation and vibration of the rudder caused by hub vortex impact are avoided, and the service life and the use reliability of the rudder are greatly guaranteed.

    本发明涉及一种防舵剥蚀的桨舵配合结构,包括船体,船体尾部下方朝后安装有螺旋桨,位于螺旋桨后方的船体上安装有舵,螺旋桨中心的桨毂后端面衔接有向后延伸的桨帽,桨帽经由舵下方向后穿过,桨帽外表面与舵底面之间设置有间隔;通过将螺旋桨中心后端面的桨帽向后延伸并穿过舵,在螺旋桨工作旋转过程中,使得螺旋桨根部产生的毂涡能够顺着桨帽外壁面向后引流,而直接溃灭于舵后方的尾流中,有效避免了毂涡与舵之间的接触,从而使舵免除了由毂涡冲击带来的剥蚀及振动,极大地保证了舵的使用寿命和使用可靠性。


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    Title :

    Paddle-rudder matching structure capable of preventing rudder denudation


    Additional title:

    一种防舵剥蚀的桨舵配合结构


    Contributors:
    ZHOU JIAN (author) / ZENG ZHIBO (author) / ZHAI SHUCHENG (author) / LI TAO (author) / XIN GONGZHENG (author) / TANG DENGHAI (author)

    Publication date :

    2022-12-23


    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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