沙市機械密封利用(yong)機(ji)(ji)械(xie)方式傳(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)(dong)力(li)和運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)，機(ji)(ji)械(xie)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)在機(ji)(ji)械(xie)工程中應用(yong)非常(chang)廣泛，有(you)多(duo)種形式，主要包括(kuo)皮帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、蝸桿蝸輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)(chi)輪(lun)(lun)(lun)齒(chi)(chi)條傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和螺旋傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等。齒(chi)(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)能夠用(yong)于(yu)大(da)功率的場合，傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比準確(que)，但(dan)(dan)一般要求較(jiao)高(gao)的制造(zao)精度(du)和安裝精度(du)。還有(you)一類是靠機(ji)(ji)件間(jian)的摩(mo)擦(ca)力(li)傳(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)(dong)力(li)和運(yun)(yun)動(dong)(dong)(dong)(dong)(dong)的摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)，包括(kuo)帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、繩(sheng)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和摩(mo)擦(ca)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等。摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)容易實現(xian)無級變速，可以適(shi)應軸間(jian)距較(jiao)大(da)的傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)場合，而(er)過載打滑還能起到(dao)緩沖和保護傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)裝置的作用(yong)，但(dan)(dan)這種傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)一般不能用(yong)于(yu)大(da)功率的場合，也不能保證準確(que)的傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比。

　　傳動形式多，但是沙市機械密封的更換工(gong)作大同小異，首先拆前需(xu)確認電機處于檢修狀態，擰下加油螺塞，用吸管把密(mi)封座腔內的潤滑油吸出(chu)。準備好放置(zhi)泵零件(jian)的工(gong)作臺及拆裝(zhuang)工(gong)具，切勿任意(yi)亂放亂用，避(bi)免碰壞(huai)泵的零部件(jian)。

　　拆(chai)對分式聯(lian)(lian)(lian)軸(zhou)器：先把(ba)聯(lian)(lian)(lian)軸(zhou)器的固(gu)定內六角螺釘擰下(xia)來，再(zai)輕輕把(ba)聯(lian)(lian)(lian)軸(zhou)器的一半從軸(zhou)上慢(man)(man)慢(man)(man)拉下(xia)，注意不要掉了，再(zai)用(yong)梅花扳(ban)手擰下(xia)泵(beng)軸(zhou)吊(diao)緊螺栓和擋塊，讓葉輪(lun)慢(man)(man)慢(man)(man)下(xia)沉至泵(beng)體，然(ran)后拆(chai)下(xia)另外一半聯(lian)(lian)(lian)軸(zhou)器，拿下(xia)泵(beng)軸(zhou)擋圈。

　　拆卸沙市機械密封：抓住(zhu)密封彈(dan)簧順著(zhu)泵軸往(wang)上提，就能拆下來了。

　　拆卸(xie)并清洗(xi)軸承座：先輕輕松動一下(xia)軸承座后用拆卸(xie)螺栓頂(ding)起軸承座，并且(qie)沿著泵軸往上(shang)提(ti)而(er)卸(xie)下(xia)，再用噴氣燃料清洗(xi)軸承及座，裝(zhuang)前晾(liang)干并涂抹少(shao)許20號機(ji)械油用來潤滑保(bao)護(hu)。

　　拆密(mi)封座：擰(ning)下密(mi)封座壓緊螺(luo)母，輕輕卸下密(mi)封座并清洗。

　　沙市機械密封裝配(pei)：在(zai)動(dong)、靜環(huan)鏡(jing)面上(shang)(shang)(shang)涂一層潔凈(jing)的20號(hao)潤滑油(you)，導(dao)軸(zhou)承座也抹上(shang)(shang)(shang)潤滑油(you)，先把靜環(huan)輕(qing)輕(qing)定位裝入導(dao)軸(zhou)承座，再在(zai)泵軸(zhou)上(shang)(shang)(shang)抹上(shang)(shang)(shang)潤滑油(you)，把動(dong)環(huan)部分(fen)輕(qing)輕(qing)裝入泵軸(zhou)上(shang)(shang)(shang)，用手輕(qing)推(tui)密封環(huan)應(ying)能伸縮(suo)自如，注意動(dong)、靜環(huan)部分(fen)的防(fang)轉部位需裝配(pei)到位。

　　裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器：在電機軸(zhou)(zhou)頭上裝(zhuang)(zhuang)上擋圈，裝(zhuang)(zhuang)上一(yi)半聯(lian)軸(zhou)(zhou)器，再在泵軸(zhou)(zhou)端(duan)和聯(lian)軸(zhou)(zhou)器槽內(nei)裝(zhuang)(zhuang)上擋塊(kuai)并(bing)用(yong)梅花扳(ban)手(shou)擰緊螺栓；再裝(zhuang)(zhuang)上另一(yi)半聯(lian)軸(zhou)(zhou)器擰上內(nei)六角(jiao)螺釘。安裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器正確(que)的(de)檢查要(yao)求：對分(fen)式(shi)聯(lian)軸(zhou)(zhou)器上下間隙需要(yao)均勻，用(yong)手(shou)盤(pan)動(dong)聯(lian)軸(zhou)(zhou)器幾圈檢查轉動(dong)的(de)靈活(huo)性。

　　裝(zhuang)密封(feng)(feng)座(zuo)：先將密封(feng)(feng)座(zuo)裝(zhuang)入橡膠油封(feng)(feng)，再把密封(feng)(feng)座(zuo)裝(zhuang)入泵蓋(gai)(gai)并壓(ya)(ya)(ya)在(zai)軸(zhou)承座(zuo)上，擰緊(jin)螺(luo)(luo)母(mu)，確保(bao)所有安裝(zhuang)螺(luo)(luo)釘(ding)緊(jin)固(gu)。當安裝(zhuang)螺(luo)(luo)釘(ding)被用(yong)作(zuo)密封(feng)(feng)與軸(zhou)之間(jian)(jian)的(de)驅動時(shi)，軸(zhou)應打埋頭孔來加固(gu)連接，緊(jin)固(gu)壓(ya)(ya)(ya)蓋(gai)(gai)螺(luo)(luo)栓(shuan)(shuan)時(shi)應該平穩(wen)緊(jin)固(gu)，并且不要使壓(ya)(ya)(ya)蓋(gai)(gai)受(shou)彈(dan)力。在(zai)可能的(de)地方使用(yong)4個以上螺(luo)(luo)釘(ding)的(de)等間(jian)(jian)距(ju)壓(ya)(ya)(ya)蓋(gai)(gai)，緊(jin)固(gu)壓(ya)(ya)(ya)蓋(gai)(gai)螺(luo)(luo)栓(shuan)(shuan)時(shi)，用(yong)塞尺檢查軸(zhou)與壓(ya)(ya)(ya)蓋(gai)(gai)之間(jian)(jian)的(de)間(jian)(jian)隙，這在(zai)密封(feng)(feng)腔對(dui)壓(ya)(ya)(ya)蓋(gai)(gai)不導向時(shi)，顯得特別(bie)重要，因為壓(ya)(ya)(ya)蓋(gai)(gai)必須(xu)對(dui)中(zhong)。