大英機械密封利用(yong)機械(xie)方式傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力和(he)(he)運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)，機械(xie)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)在機械(xie)工程中應(ying)用(yong)非常廣(guang)泛，有多(duo)種形式，主要包括皮帶傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、蝸桿蝸輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒輪(lun)齒條(tiao)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)螺旋傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等(deng)。齒輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)能(neng)夠(gou)用(yong)于大功(gong)(gong)率的(de)場(chang)合，傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比準確(que)，但一般(ban)要求(qiu)較(jiao)高的(de)制(zhi)造精度和(he)(he)安裝(zhuang)精度。還(huan)有一類是靠機件間的(de)摩(mo)(mo)擦(ca)力傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力和(he)(he)運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)摩(mo)(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)，包括帶傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)摩(mo)(mo)擦(ca)輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等(deng)。摩(mo)(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)容易實(shi)現無級變速，可(ke)以適應(ying)軸間距較(jiao)大的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)場(chang)合，而過(guo)載打(da)滑還(huan)能(neng)起到緩沖和(he)(he)保護傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)置的(de)作用(yong)，但這(zhe)種傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)一般(ban)不(bu)能(neng)用(yong)于大功(gong)(gong)率的(de)場(chang)合，也(ye)不(bu)能(neng)保證準確(que)的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比。

　　傳動形式多，但是大英機械密封的更換工(gong)作大同(tong)小(xiao)異，首先拆(chai)前需(xu)確認電機處于檢修狀態，擰下加油螺(luo)塞，用吸管把密封座腔內的潤滑油吸出。準備好放(fang)置泵(beng)(beng)零件的工(gong)作臺(tai)及拆(chai)裝工(gong)具(ju)，切勿任意亂放(fang)亂用，避免(mian)碰壞(huai)泵(beng)(beng)的零部件。

　　拆(chai)對分式聯軸器(qi)：先把(ba)聯軸器(qi)的(de)固(gu)定內六角螺釘(ding)擰下(xia)來，再輕(qing)輕(qing)把(ba)聯軸器(qi)的(de)一半從軸上慢(man)慢(man)拉下(xia)，注意不要掉了，再用(yong)梅(mei)花扳手擰下(xia)泵軸吊(diao)緊螺栓和擋(dang)塊，讓葉輪慢(man)慢(man)下(xia)沉至泵體，然后拆(chai)下(xia)另外一半聯軸器(qi)，拿下(xia)泵軸擋(dang)圈。

　　拆卸大英機械密封：抓住密(mi)封彈簧順著泵軸往上提，就能拆下來了。

　　拆卸(xie)并(bing)(bing)清洗軸(zhou)承座：先(xian)輕(qing)輕(qing)松動一下(xia)軸(zhou)承座后用(yong)拆卸(xie)螺栓頂起軸(zhou)承座，并(bing)(bing)且沿著泵軸(zhou)往上提而(er)卸(xie)下(xia)，再用(yong)噴(pen)氣(qi)燃(ran)料清洗軸(zhou)承及座，裝前晾(liang)干并(bing)(bing)涂(tu)抹少許(xu)20號機械油用(yong)來潤滑(hua)保護。

　　拆密封(feng)座：擰下密封(feng)座壓緊螺母，輕輕卸下密封(feng)座并(bing)清洗。

　　大英機械密封裝(zhuang)配：在動、靜(jing)環鏡面上涂一層(ceng)潔(jie)凈的20號潤滑(hua)油，導軸(zhou)承座(zuo)也抹上潤滑(hua)油，先(xian)把靜(jing)環輕(qing)(qing)輕(qing)(qing)定位裝(zhuang)入導軸(zhou)承座(zuo)，再在泵(beng)軸(zhou)上抹上潤滑(hua)油，把動環部分(fen)(fen)輕(qing)(qing)輕(qing)(qing)裝(zhuang)入泵(beng)軸(zhou)上，用手輕(qing)(qing)推密封環應能伸縮(suo)自如，注意動、靜(jing)環部分(fen)(fen)的防轉部位需(xu)裝(zhuang)配到位。

　　裝聯(lian)軸(zhou)器(qi)(qi)：在電(dian)機(ji)軸(zhou)頭上(shang)裝上(shang)擋(dang)圈，裝上(shang)一半聯(lian)軸(zhou)器(qi)(qi)，再在泵軸(zhou)端(duan)和聯(lian)軸(zhou)器(qi)(qi)槽內(nei)裝上(shang)擋(dang)塊并(bing)用梅花扳手(shou)擰緊(jin)螺栓(shuan)；再裝上(shang)另一半聯(lian)軸(zhou)器(qi)(qi)擰上(shang)內(nei)六角(jiao)螺釘。安裝聯(lian)軸(zhou)器(qi)(qi)正(zheng)確的(de)檢(jian)查要(yao)(yao)求(qiu)：對分式聯(lian)軸(zhou)器(qi)(qi)上(shang)下間隙(xi)需(xu)要(yao)(yao)均勻，用手(shou)盤動聯(lian)軸(zhou)器(qi)(qi)幾圈檢(jian)查轉動的(de)靈(ling)活性。

　　裝密(mi)(mi)封座：先將密(mi)(mi)封座裝入(ru)橡膠油封，再(zai)把密(mi)(mi)封座裝入(ru)泵蓋并壓(ya)(ya)在軸承座上，擰緊(jin)螺母，確(que)保所(suo)有(you)安(an)裝螺釘緊(jin)固(gu)。當安(an)裝螺釘被用(yong)作密(mi)(mi)封與軸之間(jian)的驅動時(shi)，軸應(ying)打埋頭(tou)孔來(lai)加固(gu)連接，緊(jin)固(gu)壓(ya)(ya)蓋螺栓(shuan)時(shi)應(ying)該平穩緊(jin)固(gu)，并且不要(yao)(yao)使壓(ya)(ya)蓋受彈力。在可能的地(di)方使用(yong)4個以上螺釘的等間(jian)距壓(ya)(ya)蓋，緊(jin)固(gu)壓(ya)(ya)蓋螺栓(shuan)時(shi)，用(yong)塞尺(chi)檢查(cha)軸與壓(ya)(ya)蓋之間(jian)的間(jian)隙(xi)，這在密(mi)(mi)封腔對(dui)壓(ya)(ya)蓋不導向時(shi)，顯得(de)特別重要(yao)(yao)，因(yin)為壓(ya)(ya)蓋必須對(dui)中。