前郭機械密封利用(yong)(yong)機(ji)械(xie)方式(shi)傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)力和運動(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)，機(ji)械(xie)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)在機(ji)械(xie)工程(cheng)中(zhong)應(ying)用(yong)(yong)非常廣泛(fan)，有(you)多種形式(shi)，主(zhu)要包(bao)括皮(pi)帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、齒輪(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、蝸(gua)桿蝸(gua)輪(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、齒輪(lun)齒條(tiao)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)和螺旋(xuan)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)等。齒輪(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)能(neng)夠用(yong)(yong)于大功(gong)率(lv)的(de)(de)(de)場合，傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)比準(zhun)確，但(dan)一般要求較(jiao)高的(de)(de)(de)制造精度(du)和安裝(zhuang)精度(du)。還有(you)一類是靠機(ji)件間(jian)的(de)(de)(de)摩擦(ca)(ca)(ca)力傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)力和運動(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)摩擦(ca)(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)，包(bao)括帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)和摩擦(ca)(ca)(ca)輪(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)等。摩擦(ca)(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)容易(yi)實現(xian)無級(ji)變速(su)，可以適應(ying)軸間(jian)距較(jiao)大的(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)場合，而過(guo)載打滑還能(neng)起到緩(huan)沖和保護(hu)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)置(zhi)的(de)(de)(de)作用(yong)(yong)，但(dan)這種傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)一般不能(neng)用(yong)(yong)于大功(gong)率(lv)的(de)(de)(de)場合，也(ye)不能(neng)保證(zheng)準(zhun)確的(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)比。

　　傳動形式多，但是前郭機械密封的(de)(de)更換工作大(da)同小異，首先拆前需確(que)認(ren)電機處(chu)于檢修狀態(tai)，擰(ning)下加油螺塞，用(yong)吸管(guan)把密封座腔內的(de)(de)潤(run)滑油吸出。準備好(hao)放置泵(beng)零件的(de)(de)工作臺及拆裝工具，切勿任意(yi)亂放亂用(yong)，避免碰壞泵(beng)的(de)(de)零部件。

　　拆對分(fen)式聯軸(zhou)器(qi)：先把聯軸(zhou)器(qi)的固定內六角螺釘擰下來(lai)，再(zai)(zai)輕(qing)(qing)輕(qing)(qing)把聯軸(zhou)器(qi)的一半(ban)從(cong)軸(zhou)上慢慢拉下，注(zhu)意不要掉了(le)，再(zai)(zai)用(yong)梅(mei)花扳(ban)手擰下泵(beng)(beng)軸(zhou)吊緊螺栓(shuan)和(he)擋塊，讓葉輪慢慢下沉至泵(beng)(beng)體(ti)，然后拆下另外一半(ban)聯軸(zhou)器(qi)，拿(na)下泵(beng)(beng)軸(zhou)擋圈。

　　拆卸前郭機械密封：抓住密(mi)封(feng)彈簧順著泵軸往上提，就(jiu)能拆(chai)下來了。

　　拆(chai)卸(xie)并(bing)清洗軸(zhou)(zhou)承(cheng)(cheng)座(zuo)：先輕輕松動一(yi)下(xia)(xia)軸(zhou)(zhou)承(cheng)(cheng)座(zuo)后用(yong)拆(chai)卸(xie)螺栓頂(ding)起軸(zhou)(zhou)承(cheng)(cheng)座(zuo)，并(bing)且(qie)沿著泵軸(zhou)(zhou)往(wang)上(shang)提(ti)而卸(xie)下(xia)(xia)，再用(yong)噴氣燃料清洗軸(zhou)(zhou)承(cheng)(cheng)及座(zuo)，裝前晾(liang)干并(bing)涂抹少許20號機械油用(yong)來(lai)潤滑(hua)保護。

　　拆密(mi)封(feng)座(zuo)：擰下密(mi)封(feng)座(zuo)壓緊螺母，輕輕卸下密(mi)封(feng)座(zuo)并清洗。

　　前郭機械密封裝(zhuang)配：在動、靜環(huan)鏡面上(shang)涂一層(ceng)潔凈的20號潤滑(hua)(hua)油，導(dao)軸承(cheng)座也抹上(shang)潤滑(hua)(hua)油，先(xian)把(ba)靜環(huan)輕(qing)輕(qing)定(ding)位(wei)裝(zhuang)入導(dao)軸承(cheng)座，再在泵(beng)軸上(shang)抹上(shang)潤滑(hua)(hua)油，把(ba)動環(huan)部分(fen)輕(qing)輕(qing)裝(zhuang)入泵(beng)軸上(shang)，用手輕(qing)推密(mi)封環(huan)應能伸縮(suo)自如，注意動、靜環(huan)部分(fen)的防(fang)轉部位(wei)需裝(zhuang)配到(dao)位(wei)。

　　裝(zhuang)聯(lian)(lian)軸(zhou)器(qi)：在電(dian)機軸(zhou)頭(tou)上(shang)裝(zhuang)上(shang)擋(dang)圈，裝(zhuang)上(shang)一(yi)半聯(lian)(lian)軸(zhou)器(qi)，再在泵軸(zhou)端和聯(lian)(lian)軸(zhou)器(qi)槽內裝(zhuang)上(shang)擋(dang)塊(kuai)并(bing)用(yong)梅(mei)花扳手(shou)擰緊螺栓；再裝(zhuang)上(shang)另一(yi)半聯(lian)(lian)軸(zhou)器(qi)擰上(shang)內六角螺釘。安(an)裝(zhuang)聯(lian)(lian)軸(zhou)器(qi)正確的(de)檢(jian)查要(yao)求：對分式聯(lian)(lian)軸(zhou)器(qi)上(shang)下(xia)間隙需要(yao)均勻，用(yong)手(shou)盤動(dong)聯(lian)(lian)軸(zhou)器(qi)幾圈檢(jian)查轉(zhuan)動(dong)的(de)靈活性。

　　裝(zhuang)(zhuang)密封(feng)(feng)座：先將密封(feng)(feng)座裝(zhuang)(zhuang)入橡(xiang)膠(jiao)油封(feng)(feng)，再(zai)把密封(feng)(feng)座裝(zhuang)(zhuang)入泵蓋(gai)并壓在(zai)(zai)軸(zhou)承座上，擰(ning)緊螺(luo)(luo)母，確保所有安裝(zhuang)(zhuang)螺(luo)(luo)釘緊固(gu)(gu)。當安裝(zhuang)(zhuang)螺(luo)(luo)釘被用作密封(feng)(feng)與軸(zhou)之間(jian)(jian)的(de)驅動時(shi)，軸(zhou)應打埋頭孔(kong)來加固(gu)(gu)連接，緊固(gu)(gu)壓蓋(gai)螺(luo)(luo)栓時(shi)應該(gai)平穩緊固(gu)(gu)，并且不要(yao)使壓蓋(gai)受彈(dan)力。在(zai)(zai)可能(neng)的(de)地方使用4個以上螺(luo)(luo)釘的(de)等(deng)間(jian)(jian)距壓蓋(gai)，緊固(gu)(gu)壓蓋(gai)螺(luo)(luo)栓時(shi)，用塞尺檢查軸(zhou)與壓蓋(gai)之間(jian)(jian)的(de)間(jian)(jian)隙，這在(zai)(zai)密封(feng)(feng)腔對壓蓋(gai)不導向時(shi)，顯得特別重要(yao)，因為壓蓋(gai)必須對中。