精品永久久福利一区二区_久久精品国产亚洲AV影院_国产黄大片在线观看画质优化_影音先锋中文字幕人妻

貝爾智能一體化部分回轉防爆開關型電動裝置

結構原理：

1、組成部分編輯

MW系列角(jiao)行(xing)程(cheng)調節電(dian)動執行(xing)機構由動力(li)部(bu)件(jian)和位置定位器(qi)（PM-2控制(zhi)板(ban)）兩大部(bu)分(fen)組成。其中動力(li)部(bu)件(jian)主要由電(dian)動機、減速器(qi)、力(li)矩行(xing)程(cheng)限制(zhi)器(qi)、開(kai)關(guan)控制(zhi)箱、手(shou)輪(lun)和機械限位裝(zhuang)置以及位置發送(song)器(qi)等組成，其各(ge)部(bu)分(fen)作用簡述如下(xia)：

2、電動機

電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)是特種單相或三相交流異步電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)，具有高啟動(dong)(dong)力矩、低啟動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)流和較小(xiao)的(de)轉動(dong)(dong)慣(guan)量，因而有較好的(de)伺服特性。在(zai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)定子內部裝(zhuang)有熱敏開(kai)關(guan)（詳見圖3所(suo)示）做過(guo)熱保(bao)護(hu)，當電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)出(chu)現異常(chang)過(guo)熱（內部溫度超過(guo)130℃）時該開(kai)關(guan)將控制電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)的(de)電(dian)(dian)(dian)(dian)(dian)路斷開(kai)以(yi)保(bao)護(hu)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)和執行(xing)機(ji)構，當電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)冷卻以(yi)后開(kai)關(guan)恢(hui)復接通，電(dian)(dian)(dian)(dian)(dian)路恢(hui)復工(gong)作。為了克(ke)服慣(guan)性惰走，調(diao)節型電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)執行(xing)機(ji)構的(de)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)控制電(dian)(dian)(dian)(dian)(dian)路均有電(dian)(dian)(dian)(dian)(dian)制動(dong)(dong)功能。

貝爾智能一體化部分回轉防爆開關型電動裝置工作環(huan)境(jing)和主要技術(shu)參數：

1電源(yuan)：常規，三相380V（50Hz）

特殊，三相660V、415V（50Hz、60Hz）；

單相220V、110V（50Hz、60Hz）

2工作環境

2.1環(huan)境溫度：-20~+60℃（特殊(shu)訂貨-40~+80℃）

2.2相對濕度：≤95%（25℃時）

2.3防護類型

2.3.1戶外型：用于無(wu)易燃、易爆和無(wu)腐蝕(shi)性(xing)介質的場(chang)所；

2.3.2隔(ge)爆型：有dI和dIIBT4兩種，dI適(shi)用(yong)于(yu)煤礦非采掘工(gong)作面；dIIBT4用(yong)于(yu)工(gong)廠，適(shi)用(yong)于(yu)環(huan)境為IIA、IIB級T1-T4組的爆炸性氣體混合物。（詳見(jian)GB3836.1）

2.4防(fang)護等級：IP55（特殊訂(ding)貨IP65、IP67）

2.5工(gong)作制：短時10分(fen)鐘（特殊訂貨30分(fen)鐘）