羅托克電動執行(xing)器的操作過程

羅托克(ke)電動執(zhi)行(xing)(xing)器的(de)4~20 mA的(de)直(zhi)流電流信號，并將其轉換成(cheng)相應的(de)角位移或直(zhi)行(xing)(xing)程位移，去操(cao)縱閥門、檔板等控(kong)制(zhi)(zhi)機構，以實理自動控(kong)制(zhi)(zhi)。羅托克(ke)電動執(zhi)行(xing)(xing)器與氣(qi)動執(zhi)行(xing)(xing)器一(yi)樣，是控(kong)制(zhi)(zhi)系統(tong)中的(de)一(yi)個重要部分，接收來自控(kong)制(zhi)(zhi)器。

羅托克電(dian)動(dong)執行(xing)器(qi)(qi)(qi)(qi)(qi)的(de)工作過(guo)程(cheng)是內置(zhi)(zhi)(zhi)(zhi)伺服(fu)放大器(qi)(qi)(qi)(qi)(qi)將由控制器(qi)(qi)(qi)(qi)(qi)來的(de)輸(shu)入(ru)(ru)(ru)(ru)信號(hao)(hao)與(yu)(yu)(yu)位(wei)置(zhi)(zhi)(zhi)(zhi)反(fan)饋(kui)(kui)信號(hao)(hao)進行(xing)比較，當(dang)無信號(hao)(hao)輸(shu)入(ru)(ru)(ru)(ru)時，由于位(wei)置(zhi)(zhi)(zhi)(zhi)反(fan)饋(kui)(kui)信號(hao)(hao)也為(wei)零，放大器(qi)(qi)(qi)(qi)(qi)無輸(shu)出，電(dian)機(ji)不(bu)轉；如有信號(hao)(hao)輸(shu)入(ru)(ru)(ru)(ru)，且與(yu)(yu)(yu)反(fan)饋(kui)(kui)信號(hao)(hao)比較產生偏差，使放大器(qi)(qi)(qi)(qi)(qi)有足夠的(de)輸(shu)出功率(lv)，驅動(dong)伺服(fu)電(dian)動(dong)機(ji)，經減速后(hou)使減速器(qi)(qi)(qi)(qi)(qi)的(de)輸(shu)出軸轉動(dong)，直到(dao)與(yu)(yu)(yu)輸(shu)出軸相連的(de)位(wei)置(zhi)(zhi)(zhi)(zhi)發(fa)送(song)器(qi)(qi)(qi)(qi)(qi)的(de)輸(shu)出電(dian)流與(yu)(yu)(yu)輸(shu)入(ru)(ru)(ru)(ru)信號(hao)(hao)相等(deng)為(wei)止，此時輸(shu)出軸就穩(wen)定(ding)在與(yu)(yu)(yu)該輸(shu)入(ru)(ru)(ru)(ru)信號(hao)(hao)相對應的(de)轉角位(wei)置(zhi)(zhi)(zhi)(zhi)上。實現了輸(shu)入(ru)(ru)(ru)(ru)電(dian)流倍號(hao)(hao)與(yu)(yu)(yu)輸(shu)出轉角的(de)轉換。位(wei)置(zhi)(zhi)(zhi)(zhi)發(fa)送(song)器(qi)(qi)(qi)(qi)(qi)是能(neng)將執行(xing)機(ji)構輸(shu)出軸的(de)位(wei)移轉變(bian)為(wei)4~20mA DC反(fan)饋(kui)(kui)信號(hao)(hao)的(de)裝置(zhi)(zhi)(zhi)(zhi)，主要部(bu)分是差動(dong)變(bian)壓器(qi)(qi)(qi)(qi)(qi)。

羅(luo)托(tuo)(tuo)克(ke)電(dian)(dian)動(dong)(dong)執行(xing)(xing)(xing)器(qi)(qi)有角行(xing)(xing)(xing)程(cheng)(cheng)、直行(xing)(xing)(xing)程(cheng)(cheng)和(he)(he)多回轉(zhuan)等類(lei)型(xing)。角行(xing)(xing)(xing)程(cheng)(cheng)電(dian)(dian)動(dong)(dong)執行(xing)(xing)(xing)機構(gou)以電(dian)(dian)動(dong)(dong)機為(wei)動(dong)(dong)力元件(jian)，將輸(shu)入的(de)(de)直流(liu)(liu)電(dian)(dian)流(liu)(liu)信號轉(zhuan)換為(wei)相應的(de)(de)角位(wei)移(0°~90°)，這種羅(luo)托(tuo)(tuo)克(ke)電(dian)(dian)動(dong)(dong)執行(xing)(xing)(xing)器(qi)(qi)適(shi)用于操縱(zong)蝶(die)閥(fa)、球閥(fa)、風門(men)擋板之類(lei)的(de)(de)旋轉(zhuan)式(shi)(shi)控制(zhi)閥(fa)。羅(luo)托(tuo)(tuo)克(ke)電(dian)(dian)動(dong)(dong)執行(xing)(xing)(xing)器(qi)(qi)接收輸(shu)入的(de)(de)直流(liu)(liu)電(dian)(dian)流(liu)(liu)信號后，使(shi)電(dian)(dian)動(dong)(dong)機轉(zhuan)動(dong)(dong)，然后經減速(su)器(qi)(qi)減速(su)并轉(zhuan)換為(wei)直線(xian)位(wei)移輸(shu)出，去操縱(zong)單座、雙座、套筒、二通等各(ge)種控制(zhi)閥(fa)和(he)(he)其他(ta)直線(xian)式(shi)(shi)控制(zhi)機構(gou)。羅(luo)托(tuo)(tuo)克(ke)多回轉(zhuan)電(dian)(dian)功執行(xing)(xing)(xing)機構(gou)主要用來開啟(qi)和(he)(he)關閉閘閥(fa)、截業閥(fa)等多轉(zhuan)式(shi)(shi)閥(fa)門(men)，由于電(dian)(dian)機功率比較大(da)，zui大(da)的(de)(de)有幾(ji)十千瓦，一般多用作(zuo)操作(zuo)和(he)(he)遙(yao)控。

羅托克電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)執(zhi)(zhi)行(xing)器(qi)(qi)(qi)(qi)的(de)角(jiao)行(xing)程電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)執(zhi)(zhi)朽機(ji)(ji)(ji)(ji)構主要(yao)由(you)內置伺服(fu)(fu)放大器(qi)(qi)(qi)(qi)、伺服(fu)(fu)電(dian)功機(ji)(ji)(ji)(ji)、減速(su)器(qi)(qi)(qi)(qi)、位置發送器(qi)(qi)(qi)(qi)和(he)操縱器(qi)(qi)(qi)(qi)組成。智(zhi)能型電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)執(zhi)(zhi)行(xing)器(qi)(qi)(qi)(qi)由(you)三(san)相伺服(fu)(fu)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)，通過(guo)蝸(gua)(gua)輪(lun)蝸(gua)(gua)桿減速(su)，帶(dai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)空心(xin)(xin)輸(shu)出(chu)(chu)軸轉(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)。在(zai)減速(su)箱中，具有手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)/自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)切(qie)換(huan)機(ji)(ji)(ji)(ji)構。當切(qie)換(huan)手(shou)(shou)柄(bing)處于手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)位置時，操作手(shou)(shou)輪(lun).通過(guo)離(li)合(he)(he)器(qi)(qi)(qi)(qi)帶(dai)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)空心(xin)(xin)輸(shu)出(chu)(chu)軸轉(zhuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)。當電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)操作執(zhi)(zhi)行(xing)機(ji)(ji)(ji)(ji)構時，手(shou)(shou)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)/自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)切(qie)換(huan)機(ji)(ji)(ji)(ji)構自(zi)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)回落(luo)，離(li)合(he)(he)路和(he)蝸(gua)(gua)輪(lun)相嚙(nie)合(he)(he)，由(you)三(san)相電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)空心(xin)(xin)輸(shu)出(chu)(chu)軸。同時在(zai)電(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)(ji)(ji)驅動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)蝸(gua)(gua)桿軸上(shang)(shang)裝(zhuang)有力矩傳(chuan)感(gan)器(qi)(qi)(qi)(qi)；在(zai)空心(xin)(xin)軸出(chu)(chu)軸上(shang)(shang)通過(guo)傘齒輪(lun)嚙(nie)合(he)(he)將行(xing)程傳(chuan)輸(shu)到位置傳(chuan)感(gan)器(qi)(qi)(qi)(qi)上(shang)(shang)。