The invention relates to the technical field of building machinery, and discloses a protective device of a crane for building decoration, which comprises a shell, a clamping block and a rotating shaft, and further comprises a detection mechanism, a pushing mechanism and a clamping mechanism; the detection mechanism is fixedly connected to the interior of the rotating shaft; the detection mechanism detects the stall condition of the rotating shaft; and the pushing mechanism is fixedly connected to the interior of the shell, and the pushing mechanism can convert instantaneous current generated by a piezoelectric crystal II into lasting current. According to the protective device of the crane for the building decoration provided by the invention, through cooperative use of the detection mechanism and the pushing mechanism, the stall condition of the rotating shaft is detected through the detection mechanism, and the instantaneous current generated by the piezoelectric crystal II is converted into the lasting current; and through cooperative use of the pushing mechanism and the clamping mechanism, an electrorheological fluid II is squeezed into a clamping block, the solid-state electrorheological fluid is fixed with a protrusion inside the clamping block, so that the rotating shaft stops rotating, and the protective device is simple in operation, high in automation degree and good in safety performance.

    本发明涉及建筑机械技术领域,且公开了一种建筑装修用起重机的保护装置,包括壳体、卡块和转轴,还包括检测机构、推动机构和卡紧机构,所述检测机构固定连接在所述转轴的内部,检测机构检测转轴失速的情况,所述推动机构固定连接在所述壳体的内部,推动机构可将压电晶体二产生的瞬间电流转换成持久的电流。该建筑装修用起重机的保护装置,通过检测机构与推动机构的配合使用,在检测机构检测转轴失速的情况,将压电晶体二产生的瞬间电流转换成持久的电流,通过推动机构与卡紧机构的配合使用,将电流变体二挤入卡块的内部,使得固态的电流变体与卡块内部的凸起固定,使得转轴停止转动,操作简单,自动化程度高,安全性能好。


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    Title :

    Protective device of crane for building decoration


    Additional title:

    一种建筑装修用起重机的保护装置


    Contributors:
    CHEN WENJIE (author)

    Publication date :

    2021-10-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66C Krane , CRANES



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