The invention provides a lifting hook hydraulic electric control upper limiting system which comprises a mechanical part, a hydraulic system and an electric control system. The mechanical part comprises a heavy hammer and a steel wire rope lifting hook assembly, a proximity switch is arranged on the heavy hammer, a steel wire rope of the steel wire rope lifting hook assembly penetrates through theheavy hammer, and an induction block matched with the proximity switch is arranged on the steel wire rope lifting hook assembly; the hydraulic system comprises an oil tank, an oil pump, a multi-way valve bank and a winch system, the input end of the oil pump is connected to the oil tank, an oil return pipeline is arranged on the oil tank, the output end of the oil pump is connected with the multi-way valve bank, the winch system is connected with the multi-way valve bank, and the multi-way valve bank is further connected with the oil return pipeline of the oil tank; and the electric control system comprises a junction box and a PLC. According to the scheme, the proximity switch is used, the induction block only needs to be close to the proximity switch on the heavy hammer to stop operation of the winch system, and the induction block does not make contact with the heavy hammer, so that the induction block and the heavy hammer cannot be bonded through grease, and the situation that theinduction block and the heavy hammer are out of control due to bonding by the grease, and consequently a structural part or the hydraulic system is damaged is prevented.

    本发明提供一种吊钩液压电控上限位系统,包括机械部分、液压系统和电控系统,机械部分包括重锤和钢丝绳吊钩组件,在重锤上设有接近开关,钢丝绳吊钩组件的钢丝绳穿过重锤,在钢丝绳吊钩组件上设有与接近开关配合的感应块;液压系统包括油箱、油泵、多路阀组和绞车系统,油泵的输入端连接到油箱,油箱上设有回油管路,油泵的输出端与多路阀组相连,绞车系统与多路阀组相连,多路阀组还与油箱的回油管路相连;电控系统包括接线盒与PLC,本方案使用接近开关,则感应块只需要靠近重锤上的接近开关即可停止绞车系统的运行,感应块不与重锤接触,这样黄油不会将两者粘连,从而防止感应块与重锤被黄油粘连导致失控而损坏结构件或液压系统。


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    Title :

    Lifting hook hydraulic electric control upper limiting system


    Additional title:

    一种吊钩液压电控上限位系统


    Contributors:
    GU WENPING (author) / MA QIANYUN (author) / CHEN YI (author) / HU LING (author) / ZHOU GUOBAI (author) / DU CHUNJIANG (author) / WEI LINMU (author) / ZHAO XU (author) / GUO XIAOFEI (author) / LI YAN (author)

    Publication date :

    2021-02-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein



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