The invention provides a retractable rolling damping device of a ship. The device comprises a mounting plate, a first hydraulic cylinder and a second hydraulic cylinder, wherein the mounting plate is mounted inside a shell of a bilge part of a ship body; the first hydraulic cylinder and the second hydraulic cylinder are symmetrically arranged on the mounting plate; piston rods of the first and second hydraulic cylinders are respectively connected with the two ends of a rocker arm by pin shafts; the central position of the rocker arm is fixedly connected with a fin shaft; the fin shaft passes through the bilge part of the ship body and extends out of the ship body; a retractable hydrofoil sleeves the end part of the fin shaft; the retractable hydrofoil comprises a shell type main wing which is fixedly connected with the fin shaft; a retractable hydraulic cylinder is mounted inside the shell type main wing; the piston rod of the retractable hydraulic cylinder is fixedly connected with an auxiliary wing; the initial position of the auxiliary wing is inside the shell type main wing. The retractable rolling damping device disclosed by the invention can change the fin wingspan length and the fin area of a rolling damping fin so as to obtain different rolling damping effects, and is simple in structure, high in rolling damping efficiency, low flow noise, capable of putting the auxiliary wing in the main wing when not in work so as to reduce the sailing resistance of the ship, and applicable to various ships which have a navigational speed and are relatively small in space of the bilge part.


    Access

    Download


    Export, share and cite



    Title :

    Retractable rolling damping device of ship


    Contributors:
    DING YONG (author) / HUANG DETAI (author) / XIONG DAPENG (author) / HU KAIYE (author) / TIAN TAIPING (author)

    Publication date :

    2015-08-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



    ROLLING MOTION DAMPING SYSTEM OF SMALL SHIP SMALL SHIP HAVING THE ROLLING MOTION DAMPING SYSTEM AND ROLLING MOTION DAMPING METHOD

    PARK GWANG GYU / BYUN KYUNG SEOK / KIM YEON GIL et al. | European Patent Office | 2020

    Free access

    Ship with retractable hydrofoil

    HASSELSKOG GU RAN | European Patent Office | 2023

    Free access

    Retractable springboard and ship

    GE XINGWEI / LI GUOYUN | European Patent Office | 2021

    Free access

    Retractable crane for ship

    NI QIQUAN / ZOU JIAN / YANG DINGSHENG | European Patent Office | 2023

    Free access