洞頭機械密封利用(yong)機械(xie)(xie)方式傳(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)(dong)力(li)和(he)運(yun)動(dong)(dong)(dong)(dong)(dong)的(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)，機械(xie)(xie)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)在機械(xie)(xie)工程中應用(yong)非常(chang)廣泛，有(you)多(duo)種(zhong)形式，主要(yao)包括皮帶(dai)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、蝸(gua)桿蝸(gua)輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)輪齒(chi)條傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)螺旋(xuan)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等(deng)。齒(chi)輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)能夠用(yong)于大(da)功(gong)(gong)率的(de)場(chang)合，傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比準確(que)，但(dan)一般(ban)要(yao)求(qiu)較高的(de)制造精度(du)和(he)安(an)裝(zhuang)精度(du)。還有(you)一類是靠(kao)機件間的(de)摩(mo)擦力(li)傳(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)(dong)力(li)和(he)運(yun)動(dong)(dong)(dong)(dong)(dong)的(de)摩(mo)擦傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)，包括帶(dai)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)摩(mo)擦輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等(deng)。摩(mo)擦傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)容易實現無級變(bian)速，可以適應軸間距較大(da)的(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)場(chang)合，而(er)過載打滑(hua)還能起到緩(huan)沖和(he)保護傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)裝(zhuang)置(zhi)的(de)作(zuo)用(yong)，但(dan)這種(zhong)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)一般(ban)不(bu)能用(yong)于大(da)功(gong)(gong)率的(de)場(chang)合，也不(bu)能保證準確(que)的(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比。

　　傳動形式多，但是洞頭機械密封的(de)更(geng)換工作大同小(xiao)異，首(shou)先拆前需確認電機處于檢(jian)修(xiu)狀態(tai)，擰(ning)下加(jia)油螺(luo)塞，用吸管把密封(feng)座腔內的(de)潤滑油吸出。準備好放置(zhi)泵零件的(de)工作臺及拆裝工具，切勿任意亂(luan)放亂(luan)用，避免碰壞泵的(de)零部件。

　　拆對(dui)分式(shi)聯軸(zhou)器(qi)：先把(ba)聯軸(zhou)器(qi)的(de)固定內六角螺(luo)(luo)釘(ding)擰下(xia)來，再輕(qing)輕(qing)把(ba)聯軸(zhou)器(qi)的(de)一(yi)半從軸(zhou)上慢(man)慢(man)拉下(xia)，注意不要掉了，再用梅花扳手擰下(xia)泵(beng)(beng)軸(zhou)吊緊螺(luo)(luo)栓和擋塊，讓葉輪慢(man)慢(man)下(xia)沉至泵(beng)(beng)體，然后拆下(xia)另外一(yi)半聯軸(zhou)器(qi)，拿下(xia)泵(beng)(beng)軸(zhou)擋圈。

　　拆卸洞頭機械密封：抓(zhua)住(zhu)密封彈簧(huang)順著泵軸(zhou)往上提，就能拆下來了(le)。

　　拆(chai)卸并(bing)(bing)清(qing)洗軸承座：先輕輕松動一(yi)下軸承座后用(yong)拆(chai)卸螺(luo)栓頂(ding)起軸承座，并(bing)(bing)且沿著泵軸往(wang)上提而卸下，再用(yong)噴(pen)氣燃料(liao)清(qing)洗軸承及座，裝(zhuang)前晾干并(bing)(bing)涂抹少許20號機械油用(yong)來潤滑保護。

　　拆(chai)密(mi)封(feng)(feng)座(zuo)(zuo)：擰下密(mi)封(feng)(feng)座(zuo)(zuo)壓緊(jin)螺(luo)母，輕輕卸下密(mi)封(feng)(feng)座(zuo)(zuo)并清(qing)洗。

　　洞頭機械密封裝(zhuang)(zhuang)配(pei)：在動(dong)(dong)(dong)、靜環(huan)(huan)鏡(jing)面上(shang)涂一層潔凈的20號潤(run)滑油(you)，導軸(zhou)(zhou)承座(zuo)也抹上(shang)潤(run)滑油(you)，先(xian)把靜環(huan)(huan)輕(qing)(qing)輕(qing)(qing)定位(wei)裝(zhuang)(zhuang)入導軸(zhou)(zhou)承座(zuo)，再在泵(beng)軸(zhou)(zhou)上(shang)抹上(shang)潤(run)滑油(you)，把動(dong)(dong)(dong)環(huan)(huan)部(bu)(bu)分(fen)輕(qing)(qing)輕(qing)(qing)裝(zhuang)(zhuang)入泵(beng)軸(zhou)(zhou)上(shang)，用手輕(qing)(qing)推密封環(huan)(huan)應能伸縮自如，注意(yi)動(dong)(dong)(dong)、靜環(huan)(huan)部(bu)(bu)分(fen)的防轉部(bu)(bu)位(wei)需(xu)裝(zhuang)(zhuang)配(pei)到位(wei)。

　　裝(zhuang)(zhuang)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器：在(zai)電機軸(zhou)(zhou)(zhou)(zhou)(zhou)頭(tou)上(shang)裝(zhuang)(zhuang)上(shang)擋(dang)圈(quan)(quan)，裝(zhuang)(zhuang)上(shang)一半(ban)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器，再在(zai)泵軸(zhou)(zhou)(zhou)(zhou)(zhou)端和聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器槽內(nei)裝(zhuang)(zhuang)上(shang)擋(dang)塊并用(yong)梅花(hua)扳手(shou)擰緊螺栓(shuan)；再裝(zhuang)(zhuang)上(shang)另一半(ban)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器擰上(shang)內(nei)六角螺釘(ding)。安裝(zhuang)(zhuang)聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器正確的檢查要(yao)求(qiu)：對(dui)分式聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器上(shang)下(xia)間隙需要(yao)均勻，用(yong)手(shou)盤動聯(lian)(lian)軸(zhou)(zhou)(zhou)(zhou)(zhou)器幾圈(quan)(quan)檢查轉動的靈活性。

　　裝(zhuang)(zhuang)密封(feng)座(zuo)：先(xian)將(jiang)密封(feng)座(zuo)裝(zhuang)(zhuang)入(ru)橡膠油封(feng)，再把密封(feng)座(zuo)裝(zhuang)(zhuang)入(ru)泵(beng)蓋并壓(ya)在(zai)軸(zhou)(zhou)承座(zuo)上，擰緊螺(luo)母，確保所有安(an)(an)裝(zhuang)(zhuang)螺(luo)釘緊固(gu)。當(dang)安(an)(an)裝(zhuang)(zhuang)螺(luo)釘被用作(zuo)密封(feng)與(yu)軸(zhou)(zhou)之間的(de)驅(qu)動時(shi)(shi)，軸(zhou)(zhou)應打埋頭孔來(lai)加(jia)固(gu)連(lian)接(jie)，緊固(gu)壓(ya)蓋螺(luo)栓(shuan)(shuan)時(shi)(shi)應該(gai)平穩緊固(gu)，并且不要使壓(ya)蓋受彈力。在(zai)可能的(de)地(di)方使用4個以上螺(luo)釘的(de)等間距(ju)壓(ya)蓋，緊固(gu)壓(ya)蓋螺(luo)栓(shuan)(shuan)時(shi)(shi)，用塞尺(chi)檢查軸(zhou)(zhou)與(yu)壓(ya)蓋之間的(de)間隙，這在(zai)密封(feng)腔(qiang)對(dui)壓(ya)蓋不導向時(shi)(shi)，顯得特(te)別重(zhong)要，因(yin)為(wei)壓(ya)蓋必須對(dui)中(zhong)。