電(dian)(dian)動(dong)(dong)執行器是一種常見的工業(ye)自動(dong)(dong)控(kong)制設備，它采用(yong)電(dian)(dian)機作(zuo)為驅動(dong)(dong)，將電(dian)(dian)能轉(zhuan)換成機械能，用(yong)于驅動(dong)(dong)各種類(lei)型的閥(fa)門和執行器。  

電動執(zhi)行器的工作原理  

電動(dong)(dong)(dong)執(zhi)行(xing)器(qi)(qi)是(shi)一種(zhong)通過電機(ji)將電能轉化為(wei)機(ji)械能，驅動(dong)(dong)(dong)閥門或執(zhi)行(xing)器(qi)(qi)進行(xing)開啟、關閉、調節等動(dong)(dong)(dong)作的(de)設備。電動(dong)(dong)(dong)執(zhi)行(xing)器(qi)(qi)內部有(you)一個電機(ji)和(he)(he)一個轉換(huan)機(ji)構，電機(ji)通過齒輪傳動(dong)(dong)(dong)將旋(xuan)轉運動(dong)(dong)(dong)轉化為(wei)直線(xian)(xian)運動(dong)(dong)(dong)，推動(dong)(dong)(dong)閥桿上(shang)下(xia)移動(dong)(dong)(dong)，從而(er)控制(zhi)閥門的(de)開啟度和(he)(he)流量大小。電動(dong)(dong)(dong)執(zhi)行(xing)器(qi)(qi)一般分為(wei)旋(xuan)轉式(shi)和(he)(he)直線(xian)(xian)式(shi)兩種(zhong)，旋(xuan)轉式(shi)適用(yong)于(yu)旋(xuan)轉閥門，直線(xian)(xian)式(shi)適用(yong)于(yu)直通式(shi)和(he)(he)角式(shi)閥門。  

電(dian)動(dong)執行(xing)器的特(te)點(dian)  

1.可(ke)實現遠程控制(zhi)和自動化(hua)控制(zhi)，提高生(sheng)產效率和產品質量。  

2.閥門開(kai)閉(bi)速度適宜，可適應高(gao)頻率開(kai)關和緊急切斷(duan)要求。  

3.閥門(men)調節精度好，可適用于細致調節控制(zhi)和流量(liang)計量(liang)。  

4.閥門密封(feng)性(xing)好，可適用(yong)于(yu)高(gao)溫(wen)、高(gao)壓、腐(fu)蝕性(xing)介質等惡劣環境(jing)。  

5.構造簡單，維護保養方便，性(xing)好，使用壽命(ming)長(chang)。