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起升限位开关装置的作用是什么？

起升限位开关装置的作用是什么？

浏览：39次 | 提问时间： 06-26 05:18

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愛情本是戲 06-26 05:19

起升限位开关装置的作用　限位开关又称行程限位开关，用于控制机械设备的行程及限位保护。在实际生产中，将行程限位开关安装在预先安排的位置，当装于生产机械运动部件上的模块撞击行程开关时，行程限位开关的触点动作，实现电路的切换。因此，限位开关是一种根据运动部件的行程位置而切换电路的电器，它的作用原理与按钮类似。限位开关广泛用于各类机床和起重机械，用以控制其行程、进行终端限位保护。在电梯的控制电路中，还利用行程限位开关来控制开关轿门的速度、自动开关门的限位，轿厢的上、下限位保护。　　限位开关就是用以限定机械设备的运动极限位置的电气开关。这种开关有接触式的和非接触式的。接触式的比较直观，机械设备的运动部件上，安装上限位开关，与其相对运动的固定点上安装极限位置的挡块，或者是相反安装位置。当限位开关的机械触头碰上挡块时，切断了(或改变了)控制电路，机械就停止运行或改变运行。由于机械的惯性运动，这种行程开关有一定的“超行程”以保护开关不受损坏。

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起升限位开关装置的作用是什么？

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起升限位开关装置的作用是什么？