The invention discloses an elevator overspeed protection device. The elevator overspeed protection device comprises electromagnetic safety tongs and a speed detection mechanism, wherein the electromagnetic safety tongs are installed on an elevator car and comprise electromagnets and clamp bodies driven by the electromagnets, the clamp bodies are connected to guide rails in a clamped mode and have an opening state and a closing state, and when the electromagnets are powered on and powered off, the clamp bodies can be converted between the opening state and the closing state; the speed detection mechanism is installed on the elevator car, is used for detecting a speed of the elevator car, and is electrically connected with the electromagnets to control the electromagnets to be powered on and powered off; and when the speed detection mechanism detects that the elevator car is overspeed, an overspeed signal is sent to an elevator control system to stop output, and the electromagnets are powered off to convert the clamp bodies into the closing state, so that the guide rails are clamped to stop the elevator car. According to the invention, speed-limiting overspeed protection is achieved, the trigger protection response speed is high, a structure is simple, the material cost can be saved, an installation process is simplified, and installation time is shortened.

    本发明公开一种电梯超速保护装置,包括电磁安全钳以及速度检测机构;电磁安全钳安装于轿厢并包括电磁体以及由电磁体驱动的夹钳,夹钳卡接于导轨并具有一张开状态及一闭合状态,电磁体得失电时可使夹钳于张开状态、闭合状态之间转化;速度检测机构安装于轿厢并用于检测轿厢的速度,同时还与电磁体电连接用于控制电磁体得失电;当速度检测机构检测到轿厢超速时,将超速信号发送至电梯控制系统以使其停止输出,同时使电磁体失电而使夹钳转化为闭合状态进而夹住导轨以制停轿厢,实现限速超速保护,触发保护响应速度快,并且结构简单,能够节省材料成本,简化安装工艺,缩短安装工时。


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    Titel :

    Elevator overspeed protection device


    Weitere Titelangaben:

    电梯超速保护装置


    Beteiligte:
    CHEN SHENGJUN (Autor:in)

    Erscheinungsdatum :

    2022-02-18


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B66B Aufzüge , ELEVATORS



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