The invention provides a lifting appliance heavy hammer limiting device. The lifting appliance heavy hammer limiting device comprises a triggering mechanism, a heavy hammer mechanism, a platform, a guide mechanism, an anti-swing mechanism, a height detector and a lifting appliance. The trigger mechanism is fixed on a platform of the crane, the guide mechanism is used for guiding the heavy hammer mechanism, the anti-swing mechanism is connected with the guide mechanism and the platform, the height detector is fixed at the lower end of the guide mechanism, and the lifting appliance is positioned below the device; a spring is arranged in the triggering mechanism and the triggering speed is increased through elastic force; the guide mechanism can enable the counter weight mechanism to accurately trigger the limit switch; the anti-swing mechanism prevents the guide mechanism from swinging and has an anti-falling function; the height detector is provided with an early warning value, when the height of the lifting appliance reaches the early warning value, the limiting switch can be triggered, the lifting power source is disconnected, and the lifting appliance is prevented from rushing against the platform. The problems that under the working conditions of high lifting height, large wind load and vibration, a traction steel wire is prone to being wound, an ejector rod is prone to being clamped, a device falls to hurt people, and the response is slow are solved, and the lifting appliance is prevented from impacting the top platform rapidly, effectively and accurately.

    本发明提出了一种吊具重锤限位装置,包括触发机构、重锤机构、平台、导向机构、防摇机构、高度检测器和吊具。触发机构固定在起重机的平台上,导向机构用于重锤机构的导向,防摇机构连接导向机构和平台,高度检测器固定在导向机构的下端,吊具位于本装置下方;触发机构内有弹簧并通过弹力增加触发速度;导向机构能使重锤机构准确触发限位开关;防摇机构防止导向机构摆动并有防坠功能;高度检测器设有预警值,吊具高度达到预警值时,能触发限位开关,断开起升电源,防止吊具冲顶平台。本发明解决了在起升高度较高、存在较大风载和震动工况下,牵引钢丝易缠绕、顶杆易卡死、装置坠落伤人和反应慢等问题,快速、有效、精准提高了防止吊具冲顶平台。


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    Title :

    Limiting device for heavy hammer of lifting appliance


    Additional title:

    一种吊具重锤限位装置


    Contributors:
    MAO CONG (author) / WANG TAO (author) / ZHANG WEIYOU (author) / REN JUNHUI (author) / LIANG YIPU (author) / QI JIAYONG (author) / JIANG FUHAO (author) / ZHANG MINGJUN (author) / WANG WENTAO (author)

    Publication date :

    2025-02-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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