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濱海如何對機械密封進行更換工作

發布時(shi)間(jian):2021-06-01 15:17:49 人(ren)氣:179971 來源:川工密封

  濱海機械密封利用(yong)(yong)機(ji)(ji)械(xie)方式傳(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力(li)和(he)(he)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong),機(ji)(ji)械(xie)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)在機(ji)(ji)械(xie)工程(cheng)中應用(yong)(yong)非常(chang)廣泛,有多種形式,主要(yao)(yao)包括(kuo)皮帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、蝸(gua)桿蝸(gua)輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒輪(lun)(lun)齒條傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)螺旋(xuan)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等(deng)。齒輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)能夠用(yong)(yong)于大功(gong)率的(de)場(chang)合,傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比(bi)準(zhun)(zhun)確,但一(yi)(yi)般(ban)(ban)要(yao)(yao)求較高的(de)制造精(jing)度(du)和(he)(he)安裝精(jing)度(du)。還有一(yi)(yi)類是靠(kao)機(ji)(ji)件間的(de)摩(mo)擦(ca)力(li)傳(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力(li)和(he)(he)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong),包括(kuo)帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)摩(mo)擦(ca)輪(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等(deng)。摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)容易實現無級變速(su),可以適應軸間距較大的(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)場(chang)合,而過(guo)載打滑還能起到緩沖和(he)(he)保護傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝置的(de)作用(yong)(yong),但這種傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)一(yi)(yi)般(ban)(ban)不能用(yong)(yong)于大功(gong)率的(de)場(chang)合,也不能保證準(zhun)(zhun)確的(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比(bi)。

  傳動形式多,但是濱海機械密封的(de)(de)更換工(gong)作(zuo)大同小異(yi),首(shou)先拆前需確(que)認(ren)電(dian)機處于檢修狀態,擰(ning)下加油螺塞,用(yong)吸管把密(mi)封座腔內的(de)(de)潤(run)滑油吸出。準備好放置泵零件(jian)的(de)(de)工(gong)作(zuo)臺及拆裝工(gong)具(ju),切勿任意亂放亂用(yong),避(bi)免(mian)碰壞泵的(de)(de)零部(bu)件(jian)。

  拆(chai)對分式聯軸(zhou)器(qi):先把聯軸(zhou)器(qi)的(de)固(gu)定內六角(jiao)螺釘擰下(xia)(xia)(xia)來,再輕(qing)輕(qing)把聯軸(zhou)器(qi)的(de)一(yi)半(ban)從軸(zhou)上慢(man)(man)慢(man)(man)拉(la)下(xia)(xia)(xia),注意不要掉了,再用梅花扳手擰下(xia)(xia)(xia)泵軸(zhou)吊緊螺栓和擋塊,讓葉輪(lun)慢(man)(man)慢(man)(man)下(xia)(xia)(xia)沉至泵體,然(ran)后拆(chai)下(xia)(xia)(xia)另(ling)外一(yi)半(ban)聯軸(zhou)器(qi),拿(na)下(xia)(xia)(xia)泵軸(zhou)擋圈(quan)。

  拆卸濱海機械密封:抓住(zhu)密封彈簧順著(zhu)泵軸往(wang)上提,就能(neng)拆(chai)下來了。

  拆卸并(bing)(bing)清洗(xi)軸(zhou)承(cheng)座(zuo):先輕(qing)輕(qing)松(song)動一(yi)下(xia)軸(zhou)承(cheng)座(zuo)后用(yong)(yong)拆卸螺栓頂起軸(zhou)承(cheng)座(zuo),并(bing)(bing)且沿(yan)著泵軸(zhou)往(wang)上提而卸下(xia),再用(yong)(yong)噴氣燃料(liao)清洗(xi)軸(zhou)承(cheng)及座(zuo),裝前晾(liang)干(gan)并(bing)(bing)涂抹(mo)少許20號(hao)機械油用(yong)(yong)來潤滑(hua)保護。

  拆(chai)密封(feng)座:擰下(xia)密封(feng)座壓緊螺母,輕(qing)(qing)輕(qing)(qing)卸下(xia)密封(feng)座并清洗(xi)。

  濱海機械密封裝配:在動(dong)、靜(jing)環(huan)鏡面上(shang)涂一層潔凈的20號潤滑(hua)油(you),導軸承(cheng)座也抹上(shang)潤滑(hua)油(you),先把靜(jing)環(huan)輕(qing)輕(qing)定(ding)位裝入(ru)導軸承(cheng)座,再在泵(beng)軸上(shang)抹上(shang)潤滑(hua)油(you),把動(dong)環(huan)部分(fen)輕(qing)輕(qing)裝入(ru)泵(beng)軸上(shang),用手輕(qing)推密封環(huan)應能伸縮(suo)自(zi)如(ru),注意(yi)動(dong)、靜(jing)環(huan)部分(fen)的防轉部位需裝配到位。

  裝聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi):在(zai)電機軸(zhou)(zhou)(zhou)(zhou)頭上裝上擋圈(quan),裝上一半聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi),再(zai)(zai)在(zai)泵(beng)軸(zhou)(zhou)(zhou)(zhou)端(duan)和聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)槽內(nei)裝上擋塊并用(yong)梅花扳手擰(ning)緊螺(luo)栓;再(zai)(zai)裝上另一半聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)擰(ning)上內(nei)六角(jiao)螺(luo)釘。安裝聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)正確的檢查要(yao)求:對(dui)分式聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)上下間隙需(xu)要(yao)均勻,用(yong)手盤動聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)幾圈(quan)檢查轉動的靈活性(xing)。

  裝密(mi)封(feng)座(zuo)(zuo):先將密(mi)封(feng)座(zuo)(zuo)裝入(ru)橡膠油(you)封(feng),再把(ba)密(mi)封(feng)座(zuo)(zuo)裝入(ru)泵蓋(gai)(gai)(gai)(gai)并(bing)壓(ya)(ya)在(zai)(zai)軸(zhou)(zhou)承(cheng)座(zuo)(zuo)上,擰緊(jin)螺(luo)母(mu),確(que)保所有安裝螺(luo)釘緊(jin)固。當安裝螺(luo)釘被用(yong)(yong)作密(mi)封(feng)與軸(zhou)(zhou)之間(jian)(jian)的(de)驅(qu)動時,軸(zhou)(zhou)應(ying)打(da)埋(mai)頭孔來加固連接(jie),緊(jin)固壓(ya)(ya)蓋(gai)(gai)(gai)(gai)螺(luo)栓時應(ying)該平(ping)穩緊(jin)固,并(bing)且不要使壓(ya)(ya)蓋(gai)(gai)(gai)(gai)受(shou)彈力(li)。在(zai)(zai)可能的(de)地方使用(yong)(yong)4個以上螺(luo)釘的(de)等間(jian)(jian)距(ju)壓(ya)(ya)蓋(gai)(gai)(gai)(gai),緊(jin)固壓(ya)(ya)蓋(gai)(gai)(gai)(gai)螺(luo)栓時,用(yong)(yong)塞(sai)尺檢查軸(zhou)(zhou)與壓(ya)(ya)蓋(gai)(gai)(gai)(gai)之間(jian)(jian)的(de)間(jian)(jian)隙(xi),這在(zai)(zai)密(mi)封(feng)腔(qiang)對壓(ya)(ya)蓋(gai)(gai)(gai)(gai)不導向時,顯得特別重要,因(yin)為(wei)壓(ya)(ya)蓋(gai)(gai)(gai)(gai)必(bi)須對中。