According to the present invention, disclosed is a rotary shaft assembly body having a waterproof structure capable of improving waterproof performance by providing pressure to a non-aqueous fluid contracted by external pressure and existing between a rotary shaft and a housing. According to one embodiment of the present invention, a rotary shaft assembly body located under water for driving comprises: a rotary shaft coupled to a motor; a housing including a through hole coupled to the rotary shaft; a fluid pocket formed from the outer surface of the housing toward the inside; and a space between the rotary shaft and the housing, wherein the fluid pocket and the space are filled with the non-aqueous fluid, and the rotary shaft assembly body is contracted by external pressure when the rotary shaft assembly body is put under water.

    본 발명에서는 외부 압력에 따라 수축되어 회전축과 하우징 사이에 존재하는 비수성 유체에 압력을 제공함으로써 방수 성능을 향상시킬 수 있는 회전축 조립체가 개시된다. 일 예로, 수중에 위치하여 구동되는 회전축 조립체에 있어서, 모터에 결합된 회전축; 상기 회전축이 결합되는 관통홀을 포함하는 하우징; 상기 하우징의 외면으로부터 내부를 향하여 형성되는 유체 포켓; 및 상기 회전축과 하우징 사이의 이격 공간을 포함하고, 상기 유체 포켓 및 이격 공간에는 비수성 유체가 충전되며, 상기 유체 포켓은 상기 회전축 조립체의 수중 투입 시, 외부 압력에 의하여 수축되는 회전축 조립체가 개시된다.


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    Title :

    rotation axis assembly having waterproof structure


    Additional title:

    방수 구조를 갖는 회전축 조립체


    Contributors:

    Publication date :

    2017-05-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    F16J Kolben , PISTONS / B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS



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