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武鄉如何對機械密封進行更換工作

發布(bu)時間:2021-06-01 15:17:49 人氣(qi):172453 來源:川(chuan)工密封

  武鄉機械密封利用(yong)機(ji)械(xie)(xie)方式(shi)傳(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力和(he)運動(dong)(dong)(dong)的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong),機(ji)械(xie)(xie)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)在(zai)機(ji)械(xie)(xie)工程中應用(yong)非常廣泛,有多種形式(shi),主要包括(kuo)皮(pi)帶傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒(chi)輪(lun)(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、蝸(gua)桿蝸(gua)輪(lun)(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒(chi)輪(lun)(lun)齒(chi)條傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)螺旋傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。齒(chi)輪(lun)(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)能夠用(yong)于大功率(lv)的(de)(de)(de)(de)(de)場(chang)合,傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比(bi)準(zhun)確,但一般(ban)要求較(jiao)高的(de)(de)(de)(de)(de)制造(zao)精(jing)度和(he)安裝精(jing)度。還有一類是靠(kao)機(ji)件間(jian)的(de)(de)(de)(de)(de)摩(mo)(mo)擦(ca)(ca)力傳(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力和(he)運動(dong)(dong)(dong)的(de)(de)(de)(de)(de)摩(mo)(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong),包括(kuo)帶傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、繩(sheng)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)摩(mo)(mo)擦(ca)(ca)輪(lun)(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。摩(mo)(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)容易實(shi)現無級變速,可以(yi)適應軸(zhou)間(jian)距較(jiao)大的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)場(chang)合,而過載打滑還能起到(dao)緩(huan)沖和(he)保(bao)護(hu)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)裝置的(de)(de)(de)(de)(de)作用(yong),但這種傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)一般(ban)不能用(yong)于大功率(lv)的(de)(de)(de)(de)(de)場(chang)合,也不能保(bao)證(zheng)準(zhun)確的(de)(de)(de)(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比(bi)。

  傳動形式多,但是武鄉機械密封的(de)(de)更換工作(zuo)大同小(xiao)異,首先(xian)拆前需確認電機處于檢修狀態,擰(ning)下加油螺塞,用(yong)吸管把密封座腔內的(de)(de)潤滑(hua)油吸出(chu)。準備好放置泵(beng)零件的(de)(de)工作(zuo)臺及拆裝工具,切勿任意亂放亂用(yong),避免碰壞泵(beng)的(de)(de)零部件。

  拆對分式聯(lian)(lian)軸(zhou)器(qi):先把(ba)聯(lian)(lian)軸(zhou)器(qi)的(de)固定內六角螺釘擰下(xia)(xia)來,再輕輕把(ba)聯(lian)(lian)軸(zhou)器(qi)的(de)一半從(cong)軸(zhou)上慢(man)慢(man)拉下(xia)(xia),注意不要掉了,再用梅(mei)花扳(ban)手擰下(xia)(xia)泵(beng)(beng)軸(zhou)吊緊螺栓和擋塊(kuai),讓葉輪慢(man)慢(man)下(xia)(xia)沉(chen)至(zhi)泵(beng)(beng)體,然后拆下(xia)(xia)另外(wai)一半聯(lian)(lian)軸(zhou)器(qi),拿下(xia)(xia)泵(beng)(beng)軸(zhou)擋圈。

  拆卸武鄉機械密封:抓住密封彈簧(huang)順著泵軸往(wang)上提,就(jiu)能拆(chai)下來了。

  拆卸并清洗(xi)軸(zhou)(zhou)承(cheng)座(zuo):先輕(qing)輕(qing)松動一(yi)下(xia)軸(zhou)(zhou)承(cheng)座(zuo)后(hou)用拆卸螺栓(shuan)頂起軸(zhou)(zhou)承(cheng)座(zuo),并且沿(yan)著泵(beng)軸(zhou)(zhou)往上提而卸下(xia),再用噴氣燃(ran)料清洗(xi)軸(zhou)(zhou)承(cheng)及座(zuo),裝(zhuang)前晾干并涂抹少許20號機械(xie)油用來潤滑保(bao)護。

  拆密(mi)封(feng)座:擰(ning)下(xia)密(mi)封(feng)座壓緊螺母,輕輕卸下(xia)密(mi)封(feng)座并清(qing)洗。

  武鄉機械密封裝配:在(zai)動(dong)、靜環鏡面(mian)上(shang)(shang)涂一層潔凈的20號潤(run)(run)滑油(you)(you),導軸承(cheng)座(zuo)也抹(mo)上(shang)(shang)潤(run)(run)滑油(you)(you),先把(ba)靜環輕輕定位(wei)裝入(ru)導軸承(cheng)座(zuo),再在(zai)泵軸上(shang)(shang)抹(mo)上(shang)(shang)潤(run)(run)滑油(you)(you),把(ba)動(dong)環部分輕輕裝入(ru)泵軸上(shang)(shang),用手輕推密封環應能伸縮(suo)自如,注意動(dong)、靜環部分的防轉部位(wei)需裝配到位(wei)。

  裝(zhuang)(zhuang)(zhuang)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi):在電機軸(zhou)(zhou)頭上裝(zhuang)(zhuang)(zhuang)上擋圈,裝(zhuang)(zhuang)(zhuang)上一(yi)半聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi),再(zai)在泵軸(zhou)(zhou)端和聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)槽內裝(zhuang)(zhuang)(zhuang)上擋塊(kuai)并用(yong)梅花扳(ban)手(shou)擰(ning)緊螺栓;再(zai)裝(zhuang)(zhuang)(zhuang)上另(ling)一(yi)半聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)擰(ning)上內六角螺釘。安(an)裝(zhuang)(zhuang)(zhuang)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)正確(que)的檢查要求(qiu):對分式(shi)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)上下間隙(xi)需要均勻,用(yong)手(shou)盤動聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)幾圈檢查轉動的靈活性。

  裝(zhuang)密(mi)封(feng)座(zuo):先將密(mi)封(feng)座(zuo)裝(zhuang)入(ru)橡膠油封(feng),再(zai)把密(mi)封(feng)座(zuo)裝(zhuang)入(ru)泵(beng)蓋(gai)(gai)并(bing)壓(ya)在(zai)(zai)軸承(cheng)座(zuo)上(shang),擰緊螺(luo)母(mu),確保(bao)所有安(an)(an)裝(zhuang)螺(luo)釘緊固(gu)。當安(an)(an)裝(zhuang)螺(luo)釘被用作密(mi)封(feng)與軸之間的(de)(de)驅(qu)動時,軸應打埋頭(tou)孔來加固(gu)連接,緊固(gu)壓(ya)蓋(gai)(gai)螺(luo)栓(shuan)時應該平穩緊固(gu),并(bing)且(qie)不(bu)要使(shi)壓(ya)蓋(gai)(gai)受(shou)彈力。在(zai)(zai)可能的(de)(de)地方(fang)使(shi)用4個以上(shang)螺(luo)釘的(de)(de)等間距壓(ya)蓋(gai)(gai),緊固(gu)壓(ya)蓋(gai)(gai)螺(luo)栓(shuan)時,用塞尺(chi)檢查軸與壓(ya)蓋(gai)(gai)之間的(de)(de)間隙,這在(zai)(zai)密(mi)封(feng)腔(qiang)對(dui)壓(ya)蓋(gai)(gai)不(bu)導向時,顯得特(te)別(bie)重(zhong)要,因(yin)為壓(ya)蓋(gai)(gai)必須對(dui)中。