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一、鋁合金外殼智能調節防爆電動執行機構結構原理：

1、組成部分編輯

MW系(xi)列(lie)角(jiao)行(xing)(xing)程(cheng)調(diao)節電動執行(xing)(xing)機構(gou)由動力(li)部件和位(wei)置(zhi)定位(wei)器(qi)（PM-2控制(zhi)板(ban)）兩大部分組成。其中動力(li)部件主(zhu)要由電動機、減(jian)速(su)器(qi)、力(li)矩行(xing)(xing)程(cheng)限制(zhi)器(qi)、開關控制(zhi)箱、手(shou)輪和機械限位(wei)裝置(zhi)以及(ji)位(wei)置(zhi)發送器(qi)等組成，其各(ge)部分作用簡述如下：

2、電動機

電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)是(shi)特種(zhong)單(dan)相或三(san)相交流異步(bu)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)，具有(you)高(gao)啟(qi)動(dong)(dong)(dong)(dong)(dong)力矩、低啟(qi)動(dong)(dong)(dong)(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流和(he)較小(xiao)的轉動(dong)(dong)(dong)(dong)(dong)慣量(liang)，因而(er)有(you)較好的伺服特性(xing)。在電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)定子內(nei)部裝有(you)熱敏(min)開關(guan)（詳見圖(tu)3所示）做過熱保護，當電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)出現異常過熱（內(nei)部溫度超過130℃）時(shi)該(gai)開關(guan)將控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)的電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)斷開以保護電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)和(he)執行(xing)機(ji)(ji)構(gou)，當電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)冷(leng)卻以后(hou)開關(guan)恢(hui)復(fu)接通，電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)恢(hui)復(fu)工作。為了克服慣性(xing)惰(duo)走，調節型(xing)電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)執行(xing)機(ji)(ji)構(gou)的電(dian)(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)路(lu)均有(you)電(dian)(dian)(dian)(dian)(dian)(dian)制動(dong)(dong)(dong)(dong)(dong)功能。

二、鋁合金外殼智能調節防爆電動執行機構特點：
1.該裝置防塵、防雨、防輕腐蝕、其防護等X為IP55（特殊訂貨IP65、IP67）。
2.轉矩控制機構動作可靠、調節方便、轉矩重復精度高。
3.采用閥門電動裝置三相異步電機，起動轉矩大、轉動慣性小、使用壽命長等特點，FX絕緣。
4.工作制為短時10分鐘（特殊訂貨30分鐘）。
5.配有機械式（常規型）或液晶（常規型無）閥位指示器，可直觀知道閥門的開度大小。
6.手電動切換：全自動切換，需手動時直接轉運手輪即可操作電動裝置；需電動時直接電動操作，沒有切換手柄的操作。（注意：電動運行時請勿轉運手輪！）
7.有行程限位、過力矩限位和機械限位開關等三重保護，保障了驅動裝置和閥門的使用安全。
8.供電電源：常規為380V（±10％），50Hz（特殊訂貨三相660V、415V、單相220V、60Hz）.
9.防爆標志：ExdIIBT4（常規型不防爆）。
10.環境相對濕度：≤95％（25℃時）。
11.環境溫度：-20~+60℃（特殊訂貨-40~+100℃）。