The invention discloses a main hoisting system of a large-tonnage gantry crane, and relates to the technical field of crane hoisting systems, the main hoisting system comprises a winding drum, a driving mechanism, a pulley block and a steel wire rope, the winding drum is installed on a trolley frame and connected with the driving mechanism, and a guide pulley is further installed on the trolley frame and located on the side, away from the winding drum, of the pulley block; the steel wire rope is discharged from the winding drum, bypasses the guide pulley, is redirected by the guide pulley and then is wound on the pulley block, and the bottom end of the pulley block is connected with the lifting hook group; through the arrangement of the two groups of guide pulleys, the problem that the minimum deflection angle of the steel wire rope of the multilayer winding fold line reel is less than 0.5 degree in the lifting process of a lifting hook is avoided, and meanwhile, the deflection angle of the rope outlet end of the steel wire rope at the reel is not influenced by the camber of a girder, so that the steel wire rope can be regularly wound on the reel in a multilayer manner; the application of the multi-layer broken line winding drum of the large-tonnage gantry crane is effectively improved, the requirement for lifting goods is met, and the economical efficiency and maintainability of the whole machine are improved.

    本发明公开了一种大吨位龙门起重机的主起升系统,涉及起重机起升系统技术领域,包括卷筒、驱动机构、滑轮组和钢丝绳,卷筒安装在小车架上并且连接驱动机构,小车架上还安装导向滑轮,导向滑轮位于滑轮组远离卷筒一侧,钢丝绳从卷筒出绳,绕过导向滑轮,经导向滑轮改向后缠绕在滑轮组上,滑轮组底端连接吊钩组;通过两组导向滑轮的设置,避免吊钩在起升过程中多层缠绕折线卷筒的最小钢丝绳偏角小于0.5度的问题发生,同时卷筒处钢丝绳的出绳端偏角不受大梁拱度的影响,从而达钢丝绳在卷筒上能非常有规律地进行多层缠绕,有效提高在大吨位龙门起重机的多层折线卷筒的应用,实现起吊货物的需求,提高整机的经济性和可维护性。


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    Title :

    Main lifting system of large-tonnage gantry crane


    Additional title:

    一种大吨位龙门起重机的主起升系统


    Contributors:
    ZHOU BAO (author) / YANG GANG (author) / ZHANG JINYING (author) / YANG HAORAN (author) / YANG MINGBIN (author) / GUO CHEN (author)

    Publication date :

    2024-07-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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