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金鄉如何對機械密封進行更換工作

發布時間(jian):2021-12-17 11:49:09 人(ren)氣:99063 來源:

  金鄉機械密封利(li)用機(ji)械方(fang)式傳(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力(li)(li)和(he)運動(dong)(dong)(dong)的(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong),機(ji)械傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)在(zai)機(ji)械工(gong)程中應用非常廣(guang)泛(fan),有多種形式,主要(yao)(yao)包(bao)括皮帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、蝸(gua)桿(gan)蝸(gua)輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒輪齒條傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)螺旋傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)能(neng)夠用于大功(gong)率(lv)的(de)(de)場(chang)合,傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比準確(que)(que),但一(yi)般(ban)(ban)要(yao)(yao)求較高的(de)(de)制造精(jing)度(du)和(he)安(an)裝精(jing)度(du)。還(huan)有一(yi)類是靠機(ji)件(jian)間的(de)(de)摩(mo)(mo)擦(ca)(ca)力(li)(li)傳(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力(li)(li)和(he)運動(dong)(dong)(dong)的(de)(de)摩(mo)(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong),包(bao)括帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、繩(sheng)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)摩(mo)(mo)擦(ca)(ca)輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。摩(mo)(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)容易實現無級變(bian)速,可(ke)以適應軸間距較大的(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)場(chang)合,而過載(zai)打滑(hua)還(huan)能(neng)起到緩(huan)沖和(he)保護(hu)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)裝置的(de)(de)作(zuo)用,但這種傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)一(yi)般(ban)(ban)不能(neng)用于大功(gong)率(lv)的(de)(de)場(chang)合,也不能(neng)保證(zheng)準確(que)(que)的(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比。


  傳動形式多,但是金鄉機械密封的(de)更換工作(zuo)大(da)同小異,首先拆前需(xu)確認電機處于檢(jian)修狀(zhuang)態,擰下加(jia)油(you)螺塞(sai),用吸管把密封座腔(qiang)內的(de)潤滑油(you)吸出。準備好放置泵零(ling)件的(de)工作(zuo)臺及拆裝工具,切勿(wu)任意亂放亂用,避免碰壞泵的(de)零(ling)部件。


  拆對分(fen)式(shi)聯(lian)(lian)軸器(qi)(qi):先把(ba)(ba)聯(lian)(lian)軸器(qi)(qi)的固定內六(liu)角(jiao)螺釘擰(ning)下(xia)來,再輕輕把(ba)(ba)聯(lian)(lian)軸器(qi)(qi)的一(yi)半(ban)從軸上慢(man)慢(man)拉下(xia),注(zhu)意(yi)不(bu)要掉了,再用梅花(hua)扳(ban)手擰(ning)下(xia)泵軸吊(diao)緊螺栓和擋(dang)塊(kuai),讓葉輪慢(man)慢(man)下(xia)沉(chen)至泵體(ti),然后拆下(xia)另外(wai)一(yi)半(ban)聯(lian)(lian)軸器(qi)(qi),拿下(xia)泵軸擋(dang)圈。

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  拆卸金鄉機械密封:抓住密封彈(dan)簧(huang)順著(zhu)泵軸往上提,就能拆下來(lai)了。


  拆卸并清(qing)洗軸(zhou)承(cheng)(cheng)座(zuo):先輕輕松動一下(xia)軸(zhou)承(cheng)(cheng)座(zuo)后用拆卸螺栓(shuan)頂起軸(zhou)承(cheng)(cheng)座(zuo),并且沿(yan)著(zhu)泵軸(zhou)往上提而卸下(xia),再用噴氣燃(ran)料清(qing)洗軸(zhou)承(cheng)(cheng)及座(zuo),裝前晾干并涂抹少許20號機械油用來潤滑(hua)保護(hu)。


  拆密封(feng)座:擰下(xia)密封(feng)座壓緊螺母,輕輕卸(xie)下(xia)密封(feng)座并清洗。


  金鄉機械密封裝(zhuang)(zhuang)配:在動(dong)、靜(jing)環(huan)(huan)鏡面上(shang)涂一層(ceng)潔凈(jing)的20號潤滑(hua)油,導(dao)軸承座(zuo)也抹(mo)上(shang)潤滑(hua)油,先把靜(jing)環(huan)(huan)輕(qing)輕(qing)定位(wei)裝(zhuang)(zhuang)入導(dao)軸承座(zuo),再在泵(beng)軸上(shang)抹(mo)上(shang)潤滑(hua)油,把動(dong)環(huan)(huan)部分輕(qing)輕(qing)裝(zhuang)(zhuang)入泵(beng)軸上(shang),用手輕(qing)推(tui)密(mi)封環(huan)(huan)應(ying)能伸縮自如,注(zhu)意(yi)動(dong)、靜(jing)環(huan)(huan)部分的防(fang)轉(zhuan)部位(wei)需裝(zhuang)(zhuang)配到位(wei)。


  裝聯軸(zhou)(zhou)(zhou)器(qi):在(zai)電機軸(zhou)(zhou)(zhou)頭上(shang)(shang)裝上(shang)(shang)擋(dang)圈(quan),裝上(shang)(shang)一(yi)半聯軸(zhou)(zhou)(zhou)器(qi),再(zai)在(zai)泵軸(zhou)(zhou)(zhou)端和聯軸(zhou)(zhou)(zhou)器(qi)槽內裝上(shang)(shang)擋(dang)塊并用梅(mei)花扳手(shou)擰緊螺栓;再(zai)裝上(shang)(shang)另一(yi)半聯軸(zhou)(zhou)(zhou)器(qi)擰上(shang)(shang)內六角螺釘。安裝聯軸(zhou)(zhou)(zhou)器(qi)正確(que)的檢(jian)查要(yao)求:對分式聯軸(zhou)(zhou)(zhou)器(qi)上(shang)(shang)下間隙需要(yao)均勻,用手(shou)盤動聯軸(zhou)(zhou)(zhou)器(qi)幾圈(quan)檢(jian)查轉動的靈活性(xing)。


  裝密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)座:先將(jiang)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)座裝入橡膠(jiao)油封(feng)(feng)(feng)(feng)(feng),再把(ba)密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)座裝入泵(beng)蓋(gai)(gai)(gai)(gai)并壓(ya)在軸(zhou)(zhou)承座上,擰緊(jin)螺(luo)(luo)母,確保所有安裝螺(luo)(luo)釘緊(jin)固。當安裝螺(luo)(luo)釘被用(yong)作密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)與軸(zhou)(zhou)之間(jian)的(de)(de)驅(qu)動時,軸(zhou)(zhou)應(ying)打(da)埋(mai)頭孔來(lai)加固連接(jie),緊(jin)固壓(ya)蓋(gai)(gai)(gai)(gai)螺(luo)(luo)栓(shuan)時應(ying)該平穩緊(jin)固,并且不(bu)要(yao)使(shi)壓(ya)蓋(gai)(gai)(gai)(gai)受彈力。在可能的(de)(de)地方(fang)使(shi)用(yong)4個(ge)以上螺(luo)(luo)釘的(de)(de)等間(jian)距壓(ya)蓋(gai)(gai)(gai)(gai),緊(jin)固壓(ya)蓋(gai)(gai)(gai)(gai)螺(luo)(luo)栓(shuan)時,用(yong)塞(sai)尺檢(jian)查軸(zhou)(zhou)與壓(ya)蓋(gai)(gai)(gai)(gai)之間(jian)的(de)(de)間(jian)隙,這在密(mi)(mi)封(feng)(feng)(feng)(feng)(feng)腔(qiang)對壓(ya)蓋(gai)(gai)(gai)(gai)不(bu)導向時,顯得特別重(zhong)要(yao),因為壓(ya)蓋(gai)(gai)(gai)(gai)必須(xu)對中。