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通河如何對機械密封進行更換工作

發(fa)布時間:2021-12-17 11:49:09 人氣:94810 來源:

  通河機械密封利(li)用機(ji)械方式傳(chuan)(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)力(li)和(he)(he)運動(dong)(dong)(dong)的傳(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(fei)常廣泛,有(you)多種(zhong)形式,主(zhu)要(yao)包(bao)括皮(pi)帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、蝸桿蝸輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒(chi)輪(lun)(lun)(lun)齒(chi)條傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)(he)螺旋(xuan)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。齒(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)能(neng)夠用于(yu)大(da)功率的場(chang)合(he),傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比(bi)準確(que)(que),但一般(ban)要(yao)求較高的制造(zao)精度和(he)(he)安裝精度。還有(you)一類是靠機(ji)件間的摩(mo)擦(ca)力(li)傳(chuan)(chuan)(chuan)(chuan)(chuan)遞(di)動(dong)(dong)(dong)力(li)和(he)(he)運動(dong)(dong)(dong)的摩(mo)擦(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)、繩傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)(he)摩(mo)擦(ca)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)容易實(shi)現無級變速,可以適(shi)應軸間距較大(da)的傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)場(chang)合(he),而過載打滑(hua)還能(neng)起到緩沖和(he)(he)保護傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)裝置的作用,但這種(zhong)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)一般(ban)不能(neng)用于(yu)大(da)功率的場(chang)合(he),也(ye)不能(neng)保證(zheng)準確(que)(que)的傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比(bi)。


  傳動形式多,但是通河機械密封的(de)更(geng)換工(gong)作大同小異,首先拆(chai)前(qian)需確認電機處于檢修(xiu)狀態,擰(ning)下(xia)加油螺(luo)塞,用吸管(guan)把密封座腔內的(de)潤(run)滑油吸出。準備好(hao)放置泵(beng)零件的(de)工(gong)作臺(tai)及拆(chai)裝工(gong)具,切勿任(ren)意亂(luan)放亂(luan)用,避免碰壞(huai)泵(beng)的(de)零部(bu)件。


  拆對(dui)分式聯(lian)軸(zhou)(zhou)器:先把(ba)(ba)聯(lian)軸(zhou)(zhou)器的固定內六角螺釘擰下(xia)來,再(zai)輕輕把(ba)(ba)聯(lian)軸(zhou)(zhou)器的一(yi)半(ban)從軸(zhou)(zhou)上慢慢拉下(xia),注意不(bu)要掉了,再(zai)用梅花扳(ban)手擰下(xia)泵(beng)軸(zhou)(zhou)吊緊螺栓和擋塊,讓葉輪慢慢下(xia)沉至泵(beng)體,然后拆下(xia)另外一(yi)半(ban)聯(lian)軸(zhou)(zhou)器,拿下(xia)泵(beng)軸(zhou)(zhou)擋圈。

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  拆卸通河機械密封:抓住密封彈簧(huang)順(shun)著(zhu)泵軸(zhou)往(wang)上提,就能拆下來了。


  拆(chai)卸(xie)(xie)并清洗軸承(cheng)座(zuo):先輕輕松動一(yi)下軸承(cheng)座(zuo)后用拆(chai)卸(xie)(xie)螺栓頂起(qi)軸承(cheng)座(zuo),并且(qie)沿著泵軸往上提而(er)卸(xie)(xie)下,再用噴氣燃料清洗軸承(cheng)及(ji)座(zuo),裝(zhuang)前晾干并涂抹少(shao)許(xu)20號機械油用來潤滑保(bao)護。


  拆密封座(zuo)(zuo):擰下密封座(zuo)(zuo)壓緊(jin)螺母,輕(qing)輕(qing)卸下密封座(zuo)(zuo)并清(qing)洗。


  通河機械密封裝(zhuang)配:在(zai)動、靜環(huan)(huan)鏡面上(shang)(shang)涂一(yi)層潔凈的20號潤(run)滑油,導軸(zhou)承座(zuo)也抹上(shang)(shang)潤(run)滑油,先(xian)把(ba)靜環(huan)(huan)輕(qing)輕(qing)定(ding)位(wei)裝(zhuang)入導軸(zhou)承座(zuo),再在(zai)泵軸(zhou)上(shang)(shang)抹上(shang)(shang)潤(run)滑油,把(ba)動環(huan)(huan)部分(fen)輕(qing)輕(qing)裝(zhuang)入泵軸(zhou)上(shang)(shang),用手輕(qing)推密封環(huan)(huan)應能伸縮自(zi)如,注意(yi)動、靜環(huan)(huan)部分(fen)的防轉(zhuan)部位(wei)需(xu)裝(zhuang)配到位(wei)。


  裝聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi):在電機軸(zhou)(zhou)(zhou)(zhou)頭上(shang)裝上(shang)擋圈(quan)(quan),裝上(shang)一半聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi),再(zai)在泵軸(zhou)(zhou)(zhou)(zhou)端和聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)槽(cao)內(nei)裝上(shang)擋塊并(bing)用(yong)梅花扳手擰緊螺栓;再(zai)裝上(shang)另一半聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)擰上(shang)內(nei)六角(jiao)螺釘。安裝聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)正確的(de)檢(jian)查(cha)要(yao)(yao)求:對分式聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)上(shang)下間隙需要(yao)(yao)均勻,用(yong)手盤動(dong)聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)幾圈(quan)(quan)檢(jian)查(cha)轉動(dong)的(de)靈活性。


  裝(zhuang)密(mi)封(feng)座(zuo)(zuo):先(xian)將密(mi)封(feng)座(zuo)(zuo)裝(zhuang)入橡(xiang)膠油(you)封(feng),再把(ba)密(mi)封(feng)座(zuo)(zuo)裝(zhuang)入泵蓋(gai)(gai)并壓(ya)(ya)(ya)在(zai)(zai)軸(zhou)(zhou)(zhou)承座(zuo)(zuo)上(shang),擰緊(jin)(jin)(jin)螺(luo)母,確(que)保所(suo)有(you)安裝(zhuang)螺(luo)釘緊(jin)(jin)(jin)固(gu)。當(dang)安裝(zhuang)螺(luo)釘被用作密(mi)封(feng)與(yu)軸(zhou)(zhou)(zhou)之間(jian)的(de)驅動(dong)時,軸(zhou)(zhou)(zhou)應(ying)打埋(mai)頭孔來(lai)加固(gu)連接,緊(jin)(jin)(jin)固(gu)壓(ya)(ya)(ya)蓋(gai)(gai)螺(luo)栓(shuan)時應(ying)該平穩緊(jin)(jin)(jin)固(gu),并且不(bu)要(yao)使(shi)壓(ya)(ya)(ya)蓋(gai)(gai)受彈力。在(zai)(zai)可(ke)能的(de)地方(fang)使(shi)用4個以上(shang)螺(luo)釘的(de)等間(jian)距壓(ya)(ya)(ya)蓋(gai)(gai),緊(jin)(jin)(jin)固(gu)壓(ya)(ya)(ya)蓋(gai)(gai)螺(luo)栓(shuan)時,用塞尺檢查(cha)軸(zhou)(zhou)(zhou)與(yu)壓(ya)(ya)(ya)蓋(gai)(gai)之間(jian)的(de)間(jian)隙(xi),這在(zai)(zai)密(mi)封(feng)腔(qiang)對壓(ya)(ya)(ya)蓋(gai)(gai)不(bu)導向時,顯得特別重要(yao),因為壓(ya)(ya)(ya)蓋(gai)(gai)必須對中(zhong)。