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品牌 | 貝爾 | 加工定制 | 是 |
---|---|---|---|
連接形式 | 法蘭 | 材質 | 碳鋼 |
驅動方式 | 其他 | 零部件及配件 | 執行器 |
標準 | 國標 |
整體調節型部分回轉電動執行器
結(jie)構原理:
1、組成部分編輯
MW系列角行程(cheng)調(diao)節電(dian)動(dong)執行機(ji)(ji)構由動(dong)力(li)部(bu)(bu)件和(he)位置(zhi)定位器(PM-2控制(zhi)板)兩(liang)大(da)部(bu)(bu)分組成。其中動(dong)力(li)部(bu)(bu)件主要由電(dian)動(dong)機(ji)(ji)、減(jian)速器、力(li)矩行程(cheng)限(xian)制(zhi)器、開關(guan)控制(zhi)箱、手輪和(he)機(ji)(ji)械(xie)限(xian)位裝置(zhi)以及(ji)位置(zhi)發送器等組成,其各部(bu)(bu)分作(zuo)用簡述如下:
2、電動機
電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)是特(te)(te)種單(dan)相(xiang)或三相(xiang)交(jiao)流異(yi)步電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji),具有高啟(qi)動(dong)(dong)力矩、低(di)啟(qi)動(dong)(dong)電(dian)(dian)(dian)流和較小的轉動(dong)(dong)慣(guan)量,因而有較好的伺服(fu)特(te)(te)性(xing)。在電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)定子(zi)內部裝有熱(re)敏開關(詳見圖(tu)3所示(shi))做過熱(re)保(bao)護,當電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)出現異(yi)常過熱(re)(內部溫度超過130℃)時該開關將控(kong)制電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)的電(dian)(dian)(dian)路斷開以保(bao)護電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)和執行機(ji)(ji)構,當電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)冷卻以后開關恢復(fu)接通,電(dian)(dian)(dian)路恢復(fu)工作(zuo)。為了克(ke)服(fu)慣(guan)性(xing)惰走,調節型電(dian)(dian)(dian)動(dong)(dong)執行機(ji)(ji)構的電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)控(kong)制電(dian)(dian)(dian)路均有電(dian)(dian)(dian)制動(dong)(dong)功能。
整體調節型部分回轉電動執行器工(gong)作環(huan)境和主(zhu)要技(ji)術參(can)數:
1電(dian)源:常規,三相380V(50Hz)
特殊,三相(xiang)660V、415V(50Hz、60Hz);
單相(xiang)220V、110V(50Hz、60Hz)
2工作環境
2.1環境溫(wen)度:-20~+60℃(特殊訂貨(huo)-40~+80℃)
2.2相(xiang)對(dui)濕度:≤95%(25℃時)
2.3防護類型
2.3.1戶(hu)外型:用于無(wu)易燃、易爆和無(wu)腐蝕(shi)性介質的場(chang)所;
2.3.2隔爆(bao)(bao)型(xing):有dI和dIIBT4兩種,dI適(shi)用于(yu)煤礦非(fei)采掘工作面(mian);dIIBT4用于(yu)工廠,適(shi)用于(yu)環境為IIA、IIB級T1-T4組的(de)爆(bao)(bao)炸(zha)性氣體(ti)混合物。(詳(xiang)見(jian)GB3836.1)
2.4防護等級:IP55(特(te)殊訂貨(huo)IP65、IP67)
2.5工作制:短時(shi)10分鐘(zhong)(特殊訂貨(huo)30分鐘(zhong))
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