The invention provides a horizontal stability augmentation device for a flat-head tower crane boom, and relates to the field of truss type boom construction machinery. The stability augmentation device is arranged on a horizontal truss arm of a flat-head tower crane, and comprises a super-lift triangular supporting rod, a steel wire rope inhaul cable, a front connector and a rear connector, wherein the super-lift triangular supporting rod is fixedly connected to the portion, which is close to a rotary platform, of the truss arm; the front connector is fixedly connected to the arm end of a balance arm; the rear connector is fixedly connected to the portion close to the arm end of a cargo boom; and the super-lift triangular supporting rod is connected with the front connector and the rear connector through steel wire ropes respectively. The invention also provides a boom horizontal deviation alarm system. When the steel wire ropes are pre-tightened, an alarm signal can be sent as long asthe cargo boom and the balance arm horizontally move laterally. The device is arranged on the truss arm, and can adapt to any working condition of a truss type crane, particularly in a rotary workingcondition and a combined working condition, the cargo boom and the balance arm are connected through the stability augmentation device, so that the horizontal stability of the boom can be well improved, the horizontal rigidity of the boom is improved, and the operation safety of the crane is ensured.

    本发明提出一种平头塔机臂架水平增稳装置,涉及桁式臂架类型的建筑机械领域。该增稳装置安装在平头塔式起重机的水平桁架臂上,包括:超起三角形撑杆、钢丝绳拉索、前连接头、后连接头;其中,所述超起三角形撑杆固接在紧靠回转平台的那部分桁架臂上;所述前连接头固接在平衡臂的臂端;所述后连接头固接在靠近起重臂臂端的部分;所述超起三角形撑杆分别与前、后连接头采用钢丝绳连接。本发明也提供了臂架水平偏移报警系统,在进行钢丝绳预紧时,起重臂和平衡臂只要发生水平侧移,就会发出报警信号。本发明的装置布局在桁架臂上,能适应桁架类起重机的任意工况,特别是在回转工况和组合工况中,通过增稳装置连接起重臂与平衡臂,能够很好的增加臂架的水平稳定性,增大了臂架的水平刚度,保证了起重机的作业安全进行。


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    Title :

    Horizontal stability augmentation device for flat-head tower crane boom


    Additional title:

    一种平头塔机臂架水平增稳装置


    Contributors:
    ZHANG ZHIQIANG (author) / QIN YIXIAO (author) / CAO XIAOXIANG (author)

    Publication date :

    2020-09-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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