The present invention relates to a large winch for a marine crane with improved brake performance. The present invention is able to improve brake performance and speed reduction performance when reducing the speed of a winding drum by: controlling the rotation of the winding drum as a caliper brake, which is a primary brake device, is attached to a gear disk rotating with a drive motor by a hydraulic pressure; efficiently controlling the rotation of the winding drum through a hydraulic pressure by a band brake which is a secondary brake device; and preventing the reverse rotation of the winding drum as a ratchet brake unit, which is a tertiary brake device, attaches a pawl to a ratchet wheel through a hydraulic pressure.

    본 발명은 제동성능이 향상된 해상 크레인용 대형 윈치에 관한 것으로, 권취드럼의 제동 또는 감속 시, 1차 브레이크 장치인 캘리퍼 브레이크(Caliper Brake)가 유압으로 구동모터와 함께 회전하는 기어 디스크에 밀착되어 권취드럼의 회전을 제어하고, 2차 브레이크 장치인 밴드 브레이크(Band Brake)가 유압으로 권취드럼의 회전을 효율적으로 제어하며, 3차 브레이크 장치인 래치트 브레이크 유닛이 유압으로 래치트 휠(Ratchet Wheel)에 폴(Pawl)을 접촉시켜서 권취드럼의 역회전을 방지함으로써, 제동 및 감속 성능을 향상시킬 수 있다.


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    Title :

    LARGE SIZE WINCH FOR MARINE CRANE


    Additional title:

    제동성능이 향상된 해상 크레인용 대형 윈치


    Contributors:
    LEE JONG YEOL (author) / RYU YONG SUK (author) / HWANG DONG HWAN (author) / BAE JAE IL (author) / JANG JIN WOO (author)

    Publication date :

    2016-07-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B66D Haspeln , CAPSTANS



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