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一、貝爾電裝戶外多回轉普通防爆電動裝置概述

隔(ge)爆型(xing)多回(hui)轉閥(fa)(fa)(fa)門電動(dong)裝置，簡稱為ZB/DZB型(xing)電裝，是閥(fa)(fa)(fa)門實現開啟、關閉(bi)或調節控(kong)制的(de)驅(qu)動(dong)設備。Z型(xing)電裝適(shi)用(yong)于(yu)閘(zha)閥(fa)(fa)(fa)、截止閥(fa)(fa)(fa)、隔(ge)膜(mo)閥(fa)(fa)(fa)、柱塞閥(fa)(fa)(fa)、節流閥(fa)(fa)(fa)、水閘(zha)門等。可用(yong)于(yu)明(ming)桿閥(fa)(fa)(fa)，也可用(yong)于(yu)暗桿閥(fa)(fa)(fa)。 

本系(xi)列電(dian)裝具有功能(neng)全、性能(neng)可(ke)靠、控(kong)(kong)制系(xi)統先進、體積小、重量輕、使用維護方便等(deng)(deng)特點。可(ke)對閥門實行遠控(kong)(kong)、集控(kong)(kong)和自動控(kong)(kong)制。廣(guang)泛用于電(dian)力、冶金、石(shi)油、化工、造紙、污水(shui)處(chu)理等(deng)(deng)行業。

本(ben)產品的性能符合JB/T8528-1997《普通(tong)型(xing)閥門電動(dong)裝置技(ji)術(shu)條件》的規定。隔(ge)爆型(xing)的性能符合GB3836.1-2000《爆炸性氣(qi)體環境(jing)用(yong)(yong)電氣(qi)設(she)備第1部分：通(tong)用(yong)(yong)要(yao)求》，GB3836.2-2000《爆炸性氣(qi)體環境(jing)用(yong)(yong)電氣(qi)設(she)備第2部分：隔(ge)爆型(xing)“d”》及JB/T8529-1997《隔(ge)爆型(xing)閥門電動(dong)裝置技(ji)術(shu)條件》的規定。

多回轉(zhuan)電動(dong)裝(zhuang)置按(an)防護類型(xing)(xing)分：有戶(hu)外型(xing)(xing)和隔爆型(xing)(xing)；

按(an)控(kong)制方式分：有常規(gui)型(xing)(xing)、整(zheng)(zheng)體型(xing)(xing)和整(zheng)(zheng)體調節型(xing)(xing)；

按連接型(xing)式分(fen)：有轉矩型(xing)、電站型(xing)和(he)推力型(xing)。

防(fang)爆(bao)等級(ji)ExdII, 煤(mei)礦井下用防(fang)爆(bao)等級(ji)ExdI

二.貝爾電裝戶外多回轉普通防爆電動裝置產品組成

電(dian)(dian)動(dong)裝置由多部(bu)分(fen)結構(gou)組(zu)成(cheng)，其組(zu)成(cheng)部(bu)分(fen)有(you)X電(dian)(dian)動(dong)機(ji)、齒輪傳動(dong)減速(su)機(ji)構(gou)、過力矩控制(zhi)機(ji) 構(gou)、行程控制(zhi)機(ji)構(gou)、開度指示(shi)機(ji)構(gou)、手(shou)一(yi)電(dian)(dian)動(dong)切(qie)換機(ji)構(gou)、手(shou)輪及電(dian)(dian)氣(qi)部(bu)分(fen)組(zu)成(cheng)。傳動(dong)原(yuan)理(li)如圖4所示(shi)。

注意：隔(ge)爆(bao)(bao)(bao)(bao)型電(dian)(dian)動(dong)裝(zhuang)置的(de)電(dian)(dian)氣部分已增(zeng)加了隔(ge)爆(bao)(bao)(bao)(bao)面(mian)結構，并(bing)采用隔(ge)爆(bao)(bao)(bao)(bao)型接(jie)線(xian)盒和隔(ge)爆(bao)(bao)(bao)(bao)型X電(dian)(dian)動(dong) 機(ji)。安裝(zhuang)、調(diao)試和維護時不(bu)得損傷(shang)隔(ge)爆(bao)(bao)(bao)(bao)面(mian)；打開電(dian)(dian)氣箱(xiang)蓋(gai)(gai)前必須先(xian)切斷(duan)電(dian)(dian)源(yuan)，不(bu)得在爆(bao)(bao)(bao)(bao)炸環境下拆去 與電(dian)(dian)氣有關的(de)箱(xiang)蓋(gai)(gai)帶(dai)電(dian)(dian)操(cao)作；重裝(zhuang)之(zhi)后(hou)，特別注意，務必緊固(gu)箱(xiang)蓋(gai)(gai)，以保證(zheng)隔(ge)爆(bao)(bao)(bao)(bao)性能！

X電動機：采用X三(san)相異步電動機。

齒(chi)輪(lun)減速(su)機(ji)構：里面(mian)有多對(dui)機(ji)械傳(chuan)動(dong)(dong)部件(jian)，大件(jian)由(you)一(yi)對(dui)直齒(chi)輪(lun)和蝸(gua)輪(lun)副兩X傳(chuan)動(dong)(dong)組成。電(dian)動(dong)(dong)機(ji)的(de) 動(dong)(dong)力(li)經減速(su)機(ji)構傳(chuan)遞(di)給蝸(gua)輪(lun)，蝸(gua)輪(lun)在傳(chuan)動(dong)(dong)給輸出軸，實現傳(chuan)動(dong)(dong)增(zeng)大力(li)矩、減小轉速(su)功能。

力矩控制機構：

當電(dian)動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)內(nei)部減(jian)速機構的(de)(de)(de)輸出軸上(shang)受到(dao)一定(ding)過(guo)力轉(zhuan)矩后，蝸桿除旋轉(zhuan)外還產生(sheng)(sheng)軸向 位(wei)移，帶(dai)動(dong)(dong)(dong)曲拐，曲拐直接(jie)（或通過(guo)撞塊）帶(dai)動(dong)(dong)(dong)支(zhi)架產生(sheng)(sheng)角(jiao)位(wei)移，從而達到(dao)所(suo)保(bao)護(hu)(hu)的(de)(de)(de)功能(neng)。當輸出軸 上(shang)的(de)(de)(de)轉(zhuan)矩增大到(dao)整定(ding)轉(zhuan)矩時，則支(zhi)架產生(sheng)(sheng)的(de)(de)(de)位(wei)移童使微動(dong)(dong)(dong)開關動(dong)(dong)(dong)作(zuo)，從而切(qie)斷電(dian)機電(dian)源(yuan)，電(dian)動(dong)(dong)(dong)機停(ting)轉(zhuan)。 以此實(shi)現(xian)對電(dian)動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)輸出轉(zhuan)矩的(de)(de)(de)控(kong)制，達到(dao)保(bao)護(hu)(hu)電(dian)動(dong)(dong)(dong)裝(zhuang)置(zhi)(zhi)或閥門(men)的(de)(de)(de)作(zuo)用。