The invention discloses an overload early-warning cargo boom for a crane. The overload early-warning cargo boom for the crane comprises a stand column, a rotary column rotationally connected to the top of the stand column, a cross arm fixed to the side end surface of the rotary column and an electric hoist sliding on the top of the cross arm, and further comprises an inhaul cable arranged at the bottom of the electric hoist and penetrating through the cross arm, wherein a protective sliding block is slidably arranged at the outer end surface of the cross arm in a sleeving mode, the protectivesliding block is slidably connected with the electric hoist, a pressure sensor is arranged in a gap between the top of the cross arm and the protective sliding block, the top of the pressure sensor isfixedly connected with the protective sliding block, the bottom of the pressure sensor is fixedly connected with a protective plate, and a mounting groove is formed inside the protective sliding block. According to the overload early-warning cargo boom for the crane, firstly, through an anti-falling overload early warning structure, the overload anti-falling early warning performance of the craneis improved, and secondly, a switch conversion type control structure is adopted, so that the use safety is guaranteed.

    本发明公开了一种起重机过载预警起重臂,包括立柱、转动连接在立柱顶部的转柱、固定在转柱侧端面的横臂和滑动在横臂顶部的电动葫芦,还包括安装在电动葫芦底部的贯穿横臂的拉索,所述横臂的外端面滑动套设有防护滑块,且防护滑块与电动葫芦滑动连接,所述横臂的顶部与防护滑块的间隙处设置有压力传感器,且压力传感器的顶部与防护滑块固定连接,并且压力传感器的底部固定连接有保护板,所述防护滑块的内部具有安装槽。本发明中,首先,通过防坠式过载预警结构,提升了起重机的过载防坠预警性能,其次,采用开关转换式控制结构,保障了使用的安全性。


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    Title :

    Overload early-warning cargo boom for crane


    Additional title:

    一种起重机过载预警起重臂


    Contributors:
    YIN RUOKUN (author)

    Publication date :

    2021-01-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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