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交城如何對機械密封進行更換工作

發布(bu)時間(jian):2021-12-17 11:49:09 人氣:94829 來源:

  交城機械密封利用機械方式(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)力(li)和(he)(he)(he)運動(dong)(dong)(dong)(dong)(dong)的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong),機械傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)在(zai)機械工程(cheng)中應(ying)用非(fei)常廣泛,有多種(zhong)形(xing)式(shi),主要包括皮帶傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、蝸桿蝸輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)輪(lun)(lun)(lun)齒(chi)條傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)(he)(he)螺旋傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等。齒(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)能夠用于(yu)大(da)(da)功率(lv)的(de)場(chang)合(he),傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比準確,但一(yi)般要求較高(gao)的(de)制造(zao)精度(du)和(he)(he)(he)安裝精度(du)。還(huan)有一(yi)類是靠機件(jian)間(jian)的(de)摩(mo)擦力(li)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)力(li)和(he)(he)(he)運動(dong)(dong)(dong)(dong)(dong)的(de)摩(mo)擦傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong),包括帶傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)(he)(he)摩(mo)擦輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等。摩(mo)擦傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)容(rong)易實現無(wu)級變速,可以適(shi)應(ying)軸間(jian)距較大(da)(da)的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)場(chang)合(he),而(er)過載打滑(hua)還(huan)能起到緩(huan)沖(chong)和(he)(he)(he)保護傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)裝置(zhi)的(de)作用,但這種(zhong)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)一(yi)般不能用于(yu)大(da)(da)功率(lv)的(de)場(chang)合(he),也不能保證準確的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比。


  傳動形式多,但是交城機械密封的(de)(de)更換工作大(da)同小異,首先拆(chai)前需確認電機處于檢(jian)修狀態(tai),擰(ning)下加(jia)油(you)螺塞,用吸管(guan)把密封座(zuo)腔內的(de)(de)潤(run)滑油(you)吸出(chu)。準備好放置泵零(ling)件的(de)(de)工作臺及拆(chai)裝工具,切(qie)勿(wu)任意亂放亂用,避免碰(peng)壞泵的(de)(de)零(ling)部件。


  拆對分式聯(lian)軸(zhou)器:先把聯(lian)軸(zhou)器的固定內六角(jiao)螺釘擰下(xia)來(lai),再(zai)輕輕把聯(lian)軸(zhou)器的一半從軸(zhou)上(shang)慢慢拉下(xia),注(zhu)意不(bu)要掉了,再(zai)用(yong)梅花(hua)扳手擰下(xia)泵(beng)軸(zhou)吊(diao)緊螺栓和擋塊,讓葉輪慢慢下(xia)沉至泵(beng)體,然后拆下(xia)另外一半聯(lian)軸(zhou)器,拿下(xia)泵(beng)軸(zhou)擋圈(quan)。

42.JPG

  拆卸交城機械密封:抓住密封彈簧順著(zhu)泵軸往上提(ti),就(jiu)能拆(chai)下來了(le)。


  拆(chai)卸并(bing)清(qing)洗軸承(cheng)座(zuo):先輕(qing)輕(qing)松動一下軸承(cheng)座(zuo)后用(yong)拆(chai)卸螺栓頂起軸承(cheng)座(zuo),并(bing)且沿著泵軸往上提而(er)卸下,再用(yong)噴氣(qi)燃料清(qing)洗軸承(cheng)及座(zuo),裝前晾干并(bing)涂抹少許20號機(ji)械油用(yong)來潤滑保護。


  拆(chai)密(mi)封(feng)座(zuo):擰下(xia)密(mi)封(feng)座(zuo)壓(ya)緊螺母(mu),輕輕卸下(xia)密(mi)封(feng)座(zuo)并(bing)清(qing)洗(xi)。


  交城機械密封裝(zhuang)(zhuang)(zhuang)配:在動(dong)、靜(jing)環(huan)鏡面上涂一層(ceng)潔(jie)凈的20號(hao)潤(run)滑油(you),導軸(zhou)(zhou)承座也抹上潤(run)滑油(you),先(xian)把靜(jing)環(huan)輕(qing)(qing)輕(qing)(qing)定位裝(zhuang)(zhuang)(zhuang)入(ru)導軸(zhou)(zhou)承座,再在泵(beng)軸(zhou)(zhou)上抹上潤(run)滑油(you),把動(dong)環(huan)部(bu)分(fen)輕(qing)(qing)輕(qing)(qing)裝(zhuang)(zhuang)(zhuang)入(ru)泵(beng)軸(zhou)(zhou)上,用手輕(qing)(qing)推密封環(huan)應能伸縮自如,注意動(dong)、靜(jing)環(huan)部(bu)分(fen)的防轉部(bu)位需(xu)裝(zhuang)(zhuang)(zhuang)配到位。


  裝聯軸(zhou)器(qi)(qi):在電機軸(zhou)頭上(shang)裝上(shang)擋(dang)(dang)圈,裝上(shang)一(yi)半聯軸(zhou)器(qi)(qi),再在泵軸(zhou)端(duan)和聯軸(zhou)器(qi)(qi)槽內(nei)裝上(shang)擋(dang)(dang)塊并(bing)用梅花扳手擰緊螺(luo)栓;再裝上(shang)另一(yi)半聯軸(zhou)器(qi)(qi)擰上(shang)內(nei)六角(jiao)螺(luo)釘。安裝聯軸(zhou)器(qi)(qi)正確的檢查要求(qiu):對分式聯軸(zhou)器(qi)(qi)上(shang)下(xia)間隙(xi)需要均(jun)勻(yun),用手盤動聯軸(zhou)器(qi)(qi)幾圈檢查轉動的靈活性。


  裝(zhuang)密(mi)封座(zuo):先將密(mi)封座(zuo)裝(zhuang)入(ru)橡(xiang)膠油封,再把(ba)密(mi)封座(zuo)裝(zhuang)入(ru)泵蓋并壓(ya)在(zai)(zai)軸承(cheng)座(zuo)上(shang),擰緊螺(luo)母,確(que)保所(suo)有安(an)裝(zhuang)螺(luo)釘(ding)緊固(gu)(gu)。當安(an)裝(zhuang)螺(luo)釘(ding)被用作(zuo)密(mi)封與軸之間的(de)(de)驅動時(shi),軸應打埋頭孔來加固(gu)(gu)連(lian)接,緊固(gu)(gu)壓(ya)蓋螺(luo)栓(shuan)時(shi)應該平穩緊固(gu)(gu),并且不(bu)(bu)要(yao)使(shi)壓(ya)蓋受彈力。在(zai)(zai)可能的(de)(de)地(di)方使(shi)用4個(ge)以上(shang)螺(luo)釘(ding)的(de)(de)等間距壓(ya)蓋,緊固(gu)(gu)壓(ya)蓋螺(luo)栓(shuan)時(shi),用塞尺檢查軸與壓(ya)蓋之間的(de)(de)間隙(xi),這在(zai)(zai)密(mi)封腔對(dui)壓(ya)蓋不(bu)(bu)導向時(shi),顯得(de)特別重要(yao),因為壓(ya)蓋必須對(dui)中。