吳中機械密封利用機(ji)械(xie)方式(shi)傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)力和(he)(he)運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)，機(ji)械(xie)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)在機(ji)械(xie)工程(cheng)中應用非常廣(guang)泛，有(you)多種形式(shi)，主要包(bao)括皮帶(dai)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒輪(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、鏈(lian)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、蝸(gua)桿蝸(gua)輪(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒輪(lun)齒條傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)(he)螺旋傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等。齒輪(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)能(neng)夠用于大(da)功率的(de)(de)(de)(de)(de)場合，傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比(bi)準確(que)，但一(yi)般(ban)要求較高的(de)(de)(de)(de)(de)制造精度(du)和(he)(he)安(an)裝(zhuang)精度(du)。還(huan)(huan)有(you)一(yi)類是靠機(ji)件間的(de)(de)(de)(de)(de)摩(mo)擦(ca)力傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)力和(he)(he)運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)，包(bao)括帶(dai)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(he)(he)摩(mo)擦(ca)輪(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(yi)實現無級變速(su)，可(ke)以適應軸間距較大(da)的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)場合，而過載打(da)滑(hua)還(huan)(huan)能(neng)起到緩(huan)沖和(he)(he)保護傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)裝(zhuang)置的(de)(de)(de)(de)(de)作(zuo)用，但這種傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)一(yi)般(ban)不能(neng)用于大(da)功率的(de)(de)(de)(de)(de)場合，也不能(neng)保證準確(que)的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比(bi)。

　　傳動形式多，但是吳中機械密封的更換工(gong)作大同(tong)小異，首先拆(chai)前(qian)需確認電機(ji)處于檢(jian)修狀(zhuang)態，擰下加油螺塞，用(yong)吸管把密封座腔內(nei)的潤滑油吸出。準備(bei)好放(fang)置泵(beng)零件(jian)的工(gong)作臺(tai)及(ji)拆(chai)裝工(gong)具，切(qie)勿任意亂放(fang)亂用(yong)，避免碰壞泵(beng)的零部件(jian)。

　　拆對分式聯軸器(qi)：先把聯軸器(qi)的固定內六角螺釘擰(ning)下(xia)(xia)來(lai)，再輕輕把聯軸器(qi)的一半從軸上(shang)慢慢拉下(xia)(xia)，注意(yi)不要掉(diao)了，再用(yong)梅花扳手擰(ning)下(xia)(xia)泵軸吊緊螺栓和擋塊，讓(rang)葉(xie)輪慢慢下(xia)(xia)沉至泵體，然(ran)后拆下(xia)(xia)另外(wai)一半聯軸器(qi)，拿下(xia)(xia)泵軸擋圈。

　　拆卸吳中機械密封：抓住密封彈簧順著泵軸往上提，就能拆下來了。

　　拆(chai)卸并(bing)清洗(xi)軸承座：先輕輕松(song)動一(yi)下軸承座后(hou)用拆(chai)卸螺栓頂起軸承座，并(bing)且沿著(zhu)泵軸往(wang)上提而卸下，再用噴(pen)氣(qi)燃料清洗(xi)軸承及座，裝前晾干并(bing)涂抹少許20號機械油用來潤滑保護。

　　拆密(mi)(mi)封座(zuo)：擰下密(mi)(mi)封座(zuo)壓緊螺母，輕(qing)輕(qing)卸下密(mi)(mi)封座(zuo)并(bing)清洗(xi)。

　　吳中機械密封裝配(pei)：在動(dong)、靜(jing)環鏡(jing)面上涂一(yi)層潔凈(jing)的20號潤滑(hua)(hua)油，導(dao)軸(zhou)(zhou)承(cheng)座也抹(mo)上潤滑(hua)(hua)油，先把(ba)靜(jing)環輕(qing)輕(qing)定位(wei)(wei)(wei)裝入(ru)導(dao)軸(zhou)(zhou)承(cheng)座，再在泵軸(zhou)(zhou)上抹(mo)上潤滑(hua)(hua)油，把(ba)動(dong)環部分輕(qing)輕(qing)裝入(ru)泵軸(zhou)(zhou)上，用(yong)手輕(qing)推密封(feng)環應能(neng)伸縮自如，注意動(dong)、靜(jing)環部分的防(fang)轉部位(wei)(wei)(wei)需裝配(pei)到(dao)位(wei)(wei)(wei)。

　　裝(zhuang)聯(lian)軸(zhou)(zhou)器(qi)：在電(dian)機軸(zhou)(zhou)頭上裝(zhuang)上擋圈(quan)，裝(zhuang)上一(yi)半聯(lian)軸(zhou)(zhou)器(qi)，再在泵軸(zhou)(zhou)端和聯(lian)軸(zhou)(zhou)器(qi)槽內裝(zhuang)上擋塊并用(yong)梅花扳手擰緊螺栓；再裝(zhuang)上另一(yi)半聯(lian)軸(zhou)(zhou)器(qi)擰上內六角螺釘。安(an)裝(zhuang)聯(lian)軸(zhou)(zhou)器(qi)正確的檢查要(yao)求：對(dui)分(fen)式聯(lian)軸(zhou)(zhou)器(qi)上下間隙(xi)需要(yao)均勻，用(yong)手盤動聯(lian)軸(zhou)(zhou)器(qi)幾(ji)圈(quan)檢查轉動的靈活性。

　　裝(zhuang)密(mi)封(feng)(feng)座(zuo)(zuo)：先將密(mi)封(feng)(feng)座(zuo)(zuo)裝(zhuang)入(ru)橡膠油封(feng)(feng)，再把密(mi)封(feng)(feng)座(zuo)(zuo)裝(zhuang)入(ru)泵蓋(gai)并壓(ya)在(zai)軸(zhou)(zhou)承座(zuo)(zuo)上(shang)，擰(ning)緊(jin)(jin)螺母，確保所有安(an)裝(zhuang)螺釘(ding)緊(jin)(jin)固(gu)(gu)。當安(an)裝(zhuang)螺釘(ding)被(bei)用作密(mi)封(feng)(feng)與軸(zhou)(zhou)之間(jian)的(de)驅動時(shi)，軸(zhou)(zhou)應打埋頭孔來(lai)加固(gu)(gu)連(lian)接，緊(jin)(jin)固(gu)(gu)壓(ya)蓋(gai)螺栓時(shi)應該(gai)平(ping)穩緊(jin)(jin)固(gu)(gu)，并且不(bu)要使壓(ya)蓋(gai)受彈力(li)。在(zai)可(ke)能(neng)的(de)地方使用4個以上(shang)螺釘(ding)的(de)等(deng)間(jian)距壓(ya)蓋(gai)，緊(jin)(jin)固(gu)(gu)壓(ya)蓋(gai)螺栓時(shi)，用塞尺檢查軸(zhou)(zhou)與壓(ya)蓋(gai)之間(jian)的(de)間(jian)隙，這在(zai)密(mi)封(feng)(feng)腔(qiang)對(dui)(dui)壓(ya)蓋(gai)不(bu)導向(xiang)時(shi)，顯得特別重(zhong)要，因為壓(ya)蓋(gai)必須對(dui)(dui)中。