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DZZ一體化防爆閥門電動裝置

1、電(dian)動機：戶外(wai)型采(cai)用YDF型，隔爆型采(cai)用YBDF型閥門三相(xiang)異步電(dian)動機。

2、減速(su)(su)機(ji)構(gou)：由一對直(zhi)齒輪(lun)和蝸輪(lun)副兩級(ji)傳(chuan)(chuan)動組成(cheng)。電動機(ji)的動力經減速(su)(su)機(ji)構(gou)傳(chuan)(chuan)遞給輸出軸。 

3、力矩控制機構：當輸(shu)出軸(zhou)上受到(dao)一(yi)定轉(zhuan)矩后，蝸桿除旋轉(zhuan)外還產(chan)(chan)生(sheng)軸(zhou)向位(wei)移(yi)，帶動(dong)(dong)(dong)曲拐(guai)(guai)，曲拐(guai)(guai)直接（或通過(guo)撞(zhuang)塊）帶動(dong)(dong)(dong)支架產(chan)(chan)生(sheng)角位(wei)移(yi)。當輸(shu)出軸(zhou)上的(de)轉(zhuan)矩增(zeng)大到(dao)整定轉(zhuan)矩時，則支架產(chan)(chan)生(sheng)的(de)位(wei)移(yi)量使微動(dong)(dong)(dong)開關動(dong)(dong)(dong)作，從而(er)切(qie)斷電(dian)機電(dian)源，電(dian)動(dong)(dong)(dong)機停(ting)轉(zhuan)。以此實現對電(dian)動(dong)(dong)(dong)裝置輸(shu)出轉(zhuan)矩的(de)控制，達(da)到(dao)保護(hu)電(dian)動(dong)(dong)(dong)閥門的(de)目的(de)。

4、行程(cheng)控制(zhi)(zhi)(zhi)機(ji)構： 采用(yong)十進制(zhi)(zhi)(zhi)計(ji)數(shu)(shu)器(qi)原理(li)，又稱為計(ji)數(shu)(shu)器(qi)，控制(zhi)(zhi)(zhi)精度高，其工作原理(li)為：由(you)減速箱內的(de)一對大(da)小(xiao)(xiao)傘齒輪(lun)帶動(dong)中傳小(xiao)(xiao)齒輪(lun)，再帶動(dong)行程(cheng)控制(zhi)(zhi)(zhi)機(ji)構工作。如果行程(cheng)控制(zhi)(zhi)(zhi)器(qi)按閥門開、關的(de)位置已調整好，當(dang)控制(zhi)(zhi)(zhi)器(qi)隨輸出軸轉(zhuan)動(dong)到預先調整好的(de)位置（圈數(shu)(shu)）時，則凸輪(lun)將轉(zhuan)動(dong)90°，迫使(shi)微(wei)動(dong)開關動(dong)作，切斷電(dian)動(dong)機(ji)電(dian)源，電(dian)動(dong)機(ji)停轉(zhuan)，從而實現對電(dian)動(dong)裝置行程(cheng)（轉(zhuan)圈數(shu)(shu)）的(de)控制(zhi)(zhi)(zhi)。注1：為了控制(zhi)(zhi)(zhi)較(jiao)多轉(zhuan)圈數(shu)(shu)的(de)閥門，可調整凸輪(lun)轉(zhuan)180°或270°再壓迫微(wei)動(dong)開關動(dong)作。

5、開(kai)度指(zhi)(zhi)示(shi)機構(gou)：輸入齒(chi)輪(lun)由(you)計數(shu)器(qi)(qi)個位齒(chi)輪(lun)帶動(dong)，經減(jian)速后，指(zhi)(zhi)示(shi)盤隨閥(fa)門的開(kai)關(guan)(guan)過(guo)程同時(shi)轉動(dong)，以(yi)指(zhi)(zhi)示(shi)閥(fa)門的開(kai)關(guan)(guan)量，電位器(qi)(qi)軸(zhou)和指(zhi)(zhi)示(shi)盤同步轉動(dong)，供遠傳開(kai)度指(zhi)(zhi)示(shi)用(yong)。移(yi)動(dong)轉圈數(shu)調(diao)整(zheng)齒(chi)輪(lun)可以(yi)改變轉圈數(shu)。開(kai)度指(zhi)(zhi)示(shi)機構(gou)內設一(yi)(yi)微動(dong)開(kai)關(guan)(guan)和凸輪(lun)，當(dang)電動(dong)裝置運轉時(shi)，旋轉凸輪(lun)周(zhou)期(qi)性地使(shi)微動(dong)開(kai)關(guan)(guan)動(dong)作，其(qi)頻率(lv)為輸出軸(zhou)轉動(dong)一(yi)(yi)圈動(dong)作一(yi)(yi)次(ci)或二次(ci)，可供閃光信號(hao)等使(shi)用(yong)。

6、手(shou)(shou)(shou)(shou)—電動(dong)(dong)切(qie)(qie)換(huan)機(ji)構：為半自動(dong)(dong)切(qie)(qie)換(huan)，手(shou)(shou)(shou)(shou)動(dong)(dong)時(shi)(shi)需扳動(dong)(dong)手(shou)(shou)(shou)(shou)柄(bing)(bing)切(qie)(qie)換(huan)，手(shou)(shou)(shou)(shou)動(dong)(dong)狀態(tai)(tai)轉(zhuan)變為電動(dong)(dong)時(shi)(shi)則自動(dong)(dong)運行。它由手(shou)(shou)(shou)(shou)柄(bing)(bing)、切(qie)(qie)換(huan)件、直(zhi)立(li)桿(gan)、離(li)(li)(li)(li)合(he)(he)器(qi)、壓簧等組成。需手(shou)(shou)(shou)(shou)輪操作(zuo)時(shi)(shi)，將(jiang)手(shou)(shou)(shou)(shou)柄(bing)(bing)向(xiang)(xiang)手(shou)(shou)(shou)(shou)動(dong)(dong)方向(xiang)(xiang)推動(dong)(dong)，切(qie)(qie)換(huan)件使離(li)(li)(li)(li)合(he)(he)器(qi)抬高，并(bing)壓迫壓簧。當手(shou)(shou)(shou)(shou)柄(bing)(bing)推到一定(ding)位置(zhi)時(shi)(shi)，離(li)(li)(li)(li)合(he)(he)器(qi)即脫離(li)(li)(li)(li)蝸(gua)輪而(er)與手(shou)(shou)(shou)(shou)輪嚙合(he)(he)，同(tong)時(shi)(shi)直(zhi)立(li)桿(gan)在(zai)扭簧作(zuo)用(yong)下(xia)(xia)直(zhi)立(li)于蝸(gua)輪端面，支(zhi)撐(cheng)住(zhu)離(li)(li)(li)(li)合(he)(he)器(qi)不致(zhi)下(xia)(xia)落，切(qie)(qie)換(huan)完成即可放開(kai)手(shou)(shou)(shou)(shou)柄(bing)(bing)，使用(yong)手(shou)(shou)(shou)(shou)輪進行操作(zuo)。而(er)需電動(dong)(dong)操作(zuo)時(shi)(shi)，電動(dong)(dong)機(ji)將(jiang)帶動(dong)(dong)蝸(gua)輪轉(zhuan)動(dong)(dong)，支(zhi)承(cheng)于蝸(gua)輪端面的直(zhi)立(li)桿(gan)即倒(dao)下(xia)(xia)，在(zai)壓簧作(zuo)用(yong)下(xia)(xia)離(li)(li)(li)(li)合(he)(he)器(qi)迅(xun)速向(xiang)(xiang)蝸(gua)輪方向(xiang)(xiang)移(yi)動(dong)(dong)，并(bing)與蝸(gua)輪嚙合(he)(he)，同(tong)時(shi)(shi)與手(shou)(shou)(shou)(shou)輪脫開(kai)，自動(dong)(dong)實現手(shou)(shou)(shou)(shou)動(dong)(dong)到電動(dong)(dong)狀態(tai)(tai)的轉(zhuan)換(huan)。

DZZ一體化防爆閥門電動裝置

機電一體(ti)化閥門(men)電動執行器廣(guang)泛應用于工(gong)業(ye)驅動閘閥(fa)，截止(zhi)閥(fa)，大口徑(jing)蝶閥(fa)和大口徑(jing)球閥(fa)等做多(duo)回轉的(de)閥(fa)門，產品性(xing)能穩(wen)定，手電(dian)動自由切換，操作(zuo)簡單(dan)。防(fang)護等級IP65。

該(gai)裝(zhuang)(zhuang)(zhuang)置(zhi)是把電(dian)氣(qi)控(kong)(kong)制部(bu)分(fen)與常(chang)規電(dian)裝(zhuang)(zhuang)(zhuang)合成一體簡稱整體式電(dian)裝(zhuang)(zhuang)(zhuang)。對用(yong)戶安(an)(an)裝(zhuang)(zhuang)(zhuang)，調試，檢修十分(fen)方便，可大大地節省(sheng)安(an)(an)裝(zhuang)(zhuang)(zhuang)費用(yong)，縮短安(an)(an)裝(zhuang)(zhuang)(zhuang)周期。可現場按鈕連續操作，也可遠控(kong)(kong)，集控(kong)(kong)和自(zi)控(kong)(kong)，內部(bu)有相(xiang)序識別及(ji)缺(que)相(xiang)保護(hu)功能。

該裝置可以不(bu)配套電控(kong)(kong)箱/電控(kong)(kong)柜，機頭(tou)上(shang)帶控(kong)(kong)制(zhi)按鈕(niu)，可就地控(kong)(kong)制(zhi)。切換成遠(yuan)程時，可接(jie)受中央(yang)控(kong)(kong)制(zhi)室(shi)的DCS或PLC信(xin)號集(ji)中控(kong)(kong)制(zhi)（調節(jie)型可接(jie)受4-20mA模擬量(liang)信(xin)號），同時輸出(chu)相應的4-20mA閥(fa)位反饋信(xin)號，極大(da)程度上(shang)實現了工業控(kong)(kong)制(zhi)自動化(hua)。