A hoist system for hoisting a conveyance from a mineshaft, comprising: a head frame mounted over the mineshaft; a hoist connected to the conveyance by an elongate flexible hoisting element so as to be operable to hoist the conveyance from the mineshaft by winding the hoisting element; an upper crash barrier located on the head frame so as to be engageable by the conveyance to prevent upward movement of the conveyance beyond the crash barrier in an overwind condition; and an upper conveyance retarder to retard upward movement of the conveyance as it approaches the crash barrier.


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    Title :

    Защита подъемного сосуда от падения при переподъеме


    Publication date :

    2017-07-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Russian


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS