The invention provides a marine crane. The marine crane comprises a hoisting mechanism, a guide pulley, a lifting hook group, a steel wire rope fixing end, a crane carriage and a trolley traction mechanism, the hoisting mechanism comprises a hoisting steel wire rope, a hoisting motor, a speed reducer and a hoisting winding drum, a movable pulley is arranged on the lifting hook group, a hoisting fixed pulley, a traction pulley, running wheels and a horizontal guide wheel are arranged on the crane carriage, and the trolley traction mechanism comprises a traction winding drum and a traction steel wire rope; the hoisting mechanism is fixedly connected with the tail part of a crane boom; one end of the hoisting steel wire rope is fixed on the hoisting winding drum, the other end of the hoisting steel wire rope sequentially penetrates through the guide pulley, the hoisting fixed pulley, the movable pulley and the hoisting fixed pulley and then is connected with the steel wire rope fixing end; the guide pulley is fixedly connected with the end part of the crane boom; the winding and unwinding directions of the two traction steel wire ropes are opposite; and the crane carriage is suspended on a lower edge wing plate of the crane. The marine crane has the advantages of being simple in structure, convenient to install and capable of meeting the use requirements of ships under complex working conditions.

    本发明提出了一种船用起重机,包括:起升机构、导向滑轮、吊钩组、钢丝绳固定端、起重小车和小车牵引机构,起升机构包括起升钢丝绳、起升电机、减速机和起升卷筒,吊钩组上设有动滑轮,起重小车上设有起升定滑轮、牵引滑轮、运行车轮和水平导向轮,小车牵引机构包括牵引卷筒和牵引钢丝绳;起升机构与起重机臂架尾部固定连接;起升钢丝绳一端固定在起升卷筒上,另一端依次穿过导向滑轮、起升定滑轮、动滑轮、起升定滑轮后与钢丝绳固定端连接;导向滑轮与起重机臂架的端部固定连接;牵引钢丝绳为两根,两根牵引钢丝绳的缠绕收放方向相反;起重小车悬挂于起重机的下缘翼板上。本发明的有益效果如下:结构简单、安装方便,满足船舶复杂工况使用需求。


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    Title :

    Marine crane


    Additional title:

    一种船用起重机


    Contributors:
    WANG HUI (author)

    Publication date :

    2021-04-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / B66D Haspeln , CAPSTANS



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