The sealing device for the stern shaft and the stern tube comprises a front sealing sleeve and a rear sealing sleeve, a first lubricating cavity is formed in the front sealing sleeve, a second lubricating cavity is formed in the rear sealing sleeve, oil injection holes are formed in the first lubricating cavity and the second lubricating cavity, circulators are arranged in the oil injection holes, pipe joints are arranged on the circulators, and oil pipes are connected to the pipe joints. A torsion spring is arranged between the adjusting block and the shell, a position adjusting rod is arranged at the upper end of the adjusting block, a first oil outlet hole is formed in the lower end of the adjusting block, an annular space ring is arranged in the shell, a first guide groove and a second guide groove are formed in the annular space ring, a second oil outlet hole and a third oil outlet hole are formed in the bottom of the shell, and a filter screen is arranged between the shell and the adjusting block. Oil pipes are arranged at the oil injection hole and the oil drainage hole to be connected with a lubricating oil tank, lubricating oil in a lubricating cavity is circulated, a circulator is arranged at the oil injection hole to filter the lubricating oil, when a filter screen at the second oil outlet hole is blocked, an adjusting block is controlled to rotate to enable the first oil outlet hole to communicate with the third oil outlet hole, and normal circulation of the lubricating oil is guaranteed.

    本发明提供一种艉轴艉管用密封装置,包括前密封套和后密封套,前密封套内设有第一润滑腔,后密封套内设有第二润滑腔,第一润滑腔和第二润滑腔上均设有注油孔,注油孔内设有循环器,循环器上设有管接头,管接头上连接有油管,调节块和壳体之间设有扭簧,调节块上端设有位置调节杆,调节块下端设有第一出油孔,壳体内设有环形隔圈,环形隔圈上设有第一导向槽第二导向槽,壳体底部设有第二出油孔第三出油孔,壳体和调节块之间设有滤网。本发明采用注油孔和放油孔处设置油管与润滑油箱连接,对润滑腔内的润滑油进行循环,注油孔处设置循环器对润滑油进行过滤,当第二出油孔处的滤网堵塞时,控制调节块旋转使第一出油孔与第三出油孔连通,保证润滑油的正常循环。


    Access

    Download


    Export, share and cite



    Title :

    Sealing device for stern shaft and stern tube


    Additional title:

    一种艉轴艉管用密封装置


    Contributors:
    ZHU YONG (author) / ZHU XIAOCHUN (author)

    Publication date :

    2025-05-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / F16J Kolben , PISTONS / F16N LUBRICATING , Schmierung



    Stern shaft tube sealing mechanism and stern shaft body thereof

    QIU XIANMIN | European Patent Office | 2023

    Free access

    STERN TUBE SEALING SYSTEM STERN TUBE SEALING DEVICE SHIP AND STERN TUBE SEALING METHOD

    OKAMOTO MITSUHIRO / HIMENO NOBUHIRO / FUJII MASAHIKO | European Patent Office | 2018

    Free access

    STERN TUBE SEALING SYSTEM, STERN TUBE SEALING DEVICE, SHIP, AND STERN TUBE SEALING METHOD

    OKAMOTO MITSUHIRO / HIMENO NOBUHIRO / FUJII MASAHIKO | European Patent Office | 2017

    Free access


    STERN TUBE SEALING SYSTEM, STERN TUBE SEALING DEVICE, SHIP, AND STERN TUBE SEALING METHOD

    OKAMOTO MITSUHIRO / HIMENO NOBUHIRO / FUJII MASAHIKO | European Patent Office | 2017

    Free access