電(dian)動推桿的結構決定了它的特性

1、結構(gou)：電(dian)(dian)(dian)動推桿由電(dian)(dian)(dian)動機(ji)、減速(su)齒輪、絲桿、銅螺(luo)母、導(dao)向套、活塞桿、軸承座、彈簧、缸(gang)筒(tong)座、缸(gang)筒(tong)聯接(jie)叉(cha)及光電(dian)(dian)(dian)接(jie)近(jin)開關裝置（用(yong)戶選購）等(deng)部件所組成(cheng)。

2、工作(zuo)原(yuan)理： 電(dian)動(dong)機(ji)通過一級(ji)(ji)或二級(ji)(ji)齒輪(lun)減(jian)速(su)后，帶動(dong)絲(si)杠螺母付，把(ba)電(dian)動(dong)機(ji)的旋轉運(yun)動(dong)變為直(zhi)線運(yun)動(dong)，利用電(dian)動(dong)機(ji)正反轉實現推桿(gan)往(wang)復動(dong)作(zuo)。輸出(chu)推拉力相等(deng)。通過各(ge)種杠桿(gan)力臂長(chang)度，可以增長(chang)行程。

3、過(guo)載自(zi)動(dong)(dong)保(bao)護功(gong)能：電(dian)(dian)動(dong)(dong)推(tui)桿內(nei)過(guo)載自(zi)動(dong)(dong)保(bao)護裝置(zhi)，當推(tui)桿行程到極限(xian)位(wei)置(zhi)或(huo)負載超(chao)過(guo)額定(ding)推(tui)力一定(ding)數(shu)值時(shi)，推(tui)桿將自(zi)動(dong)(dong)切(qie)斷電(dian)(dian)源(yuan)，起到保(bao)護作(zuo)用，使電(dian)(dian)動(dong)(dong)機及其它構件不致損壞，但(dan)不得以此作(zuo)為正常(chang)(chang)運行時(shi)的(de)限(xian)位(wei)開(kai)(kai)關使用。因此要(yao)求在本機上另行配置(zhi)外行程限(xian)位(wei)開(kai)(kai)關裝置(zhi)，本廠可為用戶配置(zhi)光電(dian)(dian)接(jie)近開(kai)(kai)關裝?置(zhi)，以控制推(tui)桿正常(chang)(chang)起停。