The invention belongs to the technical field of electric hoists, and discloses an electrically controlled electric hoist for a crane, which comprises a winding drum, the left side of the winding drum is movably provided with a speed reducer, and the right side of the winding drum is movably sleeved with a power device. Pressing plates are fixedly installed on the lower surfaces of a speed reducer, a power device and a brake, pressure springs are evenly distributed and fixedly installed on the lower surfaces of the pressing plates, overweight signal sending columns are fixedly installed on the lower surfaces of the pressing plates and located on inner rings of the pressure springs, and overweight signal receiving sleeves are fixedly installed on the lower surfaces of inner cavities of outer sleeves. When the power device works, a pressing plate is pulled to move downwards to compress a compression spring, when the weight of a hung object causes the bottom face of an overweight signal sending column to be in contact fit with an overweight signal receiving sleeve, namely the weight of the hung object exceeds the load of the power device, the hung object needs to be deleted and repackaged, frequent overload work of the power device is prevented, and the service life of the power device is prolonged.

    本发明属于电动葫芦技术领域,且公开了一种电气控制的起重机用电动葫芦,包括卷筒,所述卷筒的左侧活动安装有减速器,所述卷筒的右侧活动套装有动力装置。本发明通过减速器、动力装置、制动器的下表面固定安装压板,压板的下表面均布固定安装压簧,压板的下表面且位于压簧的内环固定安装过重信号发出柱,外套内腔的下表面固定安装过重信号接收套,使得卷筒上钢绳吊挂物体承受重力时,首先会拉动压板下移压缩压簧,当吊挂物体的重量导致过重信号发出柱的底面与过重信号接收套接触配合,即吊挂物体的重量超过动力装置的负载,需要对吊挂物体删减,重新打包,防止动力装置经常过载工作,提高动力装置的使用寿命。


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    Title :

    Electrically-controlled electric hoist for crane


    Additional title:

    一种电气控制的起重机用电动葫芦


    Contributors:
    CHEN XINYU (author)

    Publication date :

    2022-07-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66D Haspeln , CAPSTANS / F16N LUBRICATING , Schmierung



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