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東臺如何對機械密封進行更換工作

發布時間:2021-12-17 11:49:09 人氣:98938 來源(yuan):

  東臺機械密封利(li)用(yong)機械(xie)方式傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力(li)和(he)(he)運(yun)動(dong)(dong)(dong)的(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong),機械(xie)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)在機械(xie)工(gong)程中(zhong)應(ying)用(yong)非常廣泛,有多種形式,主要(yao)包括(kuo)皮帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、蝸(gua)桿(gan)蝸(gua)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒(chi)輪(lun)(lun)(lun)齒(chi)條傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)(he)螺(luo)旋傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。齒(chi)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)能(neng)(neng)夠(gou)用(yong)于(yu)(yu)大功率的(de)(de)場(chang)合,傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比準(zhun)確(que),但(dan)一(yi)般要(yao)求較高的(de)(de)制造(zao)精度(du)和(he)(he)安裝精度(du)。還(huan)有一(yi)類是靠機件間的(de)(de)摩(mo)擦(ca)(ca)力(li)傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力(li)和(he)(he)運(yun)動(dong)(dong)(dong)的(de)(de)摩(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong),包括(kuo)帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)(he)摩(mo)擦(ca)(ca)輪(lun)(lun)(lun)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。摩(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)容易實(shi)現無(wu)級變速,可以(yi)適應(ying)軸間距較大的(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)場(chang)合,而過載(zai)打滑還(huan)能(neng)(neng)起到緩(huan)沖和(he)(he)保護傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)裝置的(de)(de)作用(yong),但(dan)這種傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)一(yi)般不能(neng)(neng)用(yong)于(yu)(yu)大功率的(de)(de)場(chang)合,也不能(neng)(neng)保證準(zhun)確(que)的(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比。


  傳動形式多,但是東臺機械密封的(de)更換工(gong)作大同(tong)小(xiao)異,首先(xian)拆前需確認電機處于檢修狀(zhuang)態,擰(ning)下加油螺塞,用吸(xi)管把密封座腔內的(de)潤(run)滑(hua)油吸(xi)出。準備(bei)好放(fang)置泵(beng)零件的(de)工(gong)作臺及拆裝工(gong)具(ju),切勿(wu)任意亂放(fang)亂用,避免碰(peng)壞泵(beng)的(de)零部件。


  拆(chai)對分式(shi)聯軸(zhou)器(qi)(qi)(qi):先把(ba)聯軸(zhou)器(qi)(qi)(qi)的固定(ding)內(nei)六角螺(luo)釘擰(ning)下(xia)來,再輕輕把(ba)聯軸(zhou)器(qi)(qi)(qi)的一(yi)半從(cong)軸(zhou)上慢(man)(man)慢(man)(man)拉下(xia),注意(yi)不要掉了,再用梅花扳手擰(ning)下(xia)泵(beng)軸(zhou)吊緊(jin)螺(luo)栓和擋(dang)塊,讓葉輪慢(man)(man)慢(man)(man)下(xia)沉至泵(beng)體(ti),然后拆(chai)下(xia)另外一(yi)半聯軸(zhou)器(qi)(qi)(qi),拿下(xia)泵(beng)軸(zhou)擋(dang)圈(quan)。

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  拆卸東臺機械密封:抓住密封(feng)彈簧(huang)順著(zhu)泵軸往上提,就能拆下來了。


  拆(chai)卸并(bing)(bing)清洗軸(zhou)承(cheng)座(zuo):先輕輕松動一下(xia)軸(zhou)承(cheng)座(zuo)后(hou)用拆(chai)卸螺栓(shuan)頂起軸(zhou)承(cheng)座(zuo),并(bing)(bing)且沿著泵軸(zhou)往上提而卸下(xia),再(zai)用噴氣燃料清洗軸(zhou)承(cheng)及座(zuo),裝(zhuang)前晾干并(bing)(bing)涂抹少(shao)許20號機械油(you)用來潤滑保護。


  拆密封座(zuo):擰下(xia)密封座(zuo)壓緊螺母(mu),輕(qing)輕(qing)卸下(xia)密封座(zuo)并(bing)清洗。


  東臺機械密封裝配:在(zai)動(dong)、靜環(huan)鏡面上(shang)涂一層(ceng)潔凈的20號潤(run)滑油,導(dao)軸承座也抹(mo)(mo)上(shang)潤(run)滑油,先(xian)把靜環(huan)輕輕定位(wei)裝入導(dao)軸承座,再在(zai)泵軸上(shang)抹(mo)(mo)上(shang)潤(run)滑油,把動(dong)環(huan)部分輕輕裝入泵軸上(shang),用手輕推(tui)密封(feng)環(huan)應(ying)能伸縮自(zi)如,注意動(dong)、靜環(huan)部分的防轉部位(wei)需裝配到位(wei)。


  裝(zhuang)聯軸(zhou)(zhou)(zhou)器(qi)(qi):在(zai)電機軸(zhou)(zhou)(zhou)頭上(shang)(shang)裝(zhuang)上(shang)(shang)擋圈,裝(zhuang)上(shang)(shang)一(yi)半聯軸(zhou)(zhou)(zhou)器(qi)(qi),再在(zai)泵軸(zhou)(zhou)(zhou)端和聯軸(zhou)(zhou)(zhou)器(qi)(qi)槽內裝(zhuang)上(shang)(shang)擋塊并用(yong)梅花扳手(shou)擰緊(jin)螺(luo)栓;再裝(zhuang)上(shang)(shang)另一(yi)半聯軸(zhou)(zhou)(zhou)器(qi)(qi)擰上(shang)(shang)內六角螺(luo)釘。安裝(zhuang)聯軸(zhou)(zhou)(zhou)器(qi)(qi)正(zheng)確的檢查要求:對分式(shi)聯軸(zhou)(zhou)(zhou)器(qi)(qi)上(shang)(shang)下間隙需(xu)要均勻,用(yong)手(shou)盤動聯軸(zhou)(zhou)(zhou)器(qi)(qi)幾圈檢查轉(zhuan)動的靈(ling)活性(xing)。


  裝(zhuang)密(mi)封座(zuo)(zuo):先(xian)將密(mi)封座(zuo)(zuo)裝(zhuang)入橡膠油封,再把密(mi)封座(zuo)(zuo)裝(zhuang)入泵蓋(gai)并壓(ya)(ya)(ya)(ya)在(zai)(zai)軸(zhou)承座(zuo)(zuo)上,擰緊(jin)(jin)螺母,確保所(suo)有(you)安(an)裝(zhuang)螺釘緊(jin)(jin)固。當安(an)裝(zhuang)螺釘被用作密(mi)封與軸(zhou)之間(jian)的驅動時,軸(zhou)應(ying)打埋頭孔來加固連接(jie),緊(jin)(jin)固壓(ya)(ya)(ya)(ya)蓋(gai)螺栓時應(ying)該平穩緊(jin)(jin)固,并且不要使壓(ya)(ya)(ya)(ya)蓋(gai)受彈力。在(zai)(zai)可能的地方使用4個以上螺釘的等間(jian)距壓(ya)(ya)(ya)(ya)蓋(gai),緊(jin)(jin)固壓(ya)(ya)(ya)(ya)蓋(gai)螺栓時,用塞(sai)尺檢查軸(zhou)與壓(ya)(ya)(ya)(ya)蓋(gai)之間(jian)的間(jian)隙(xi),這在(zai)(zai)密(mi)封腔(qiang)對(dui)壓(ya)(ya)(ya)(ya)蓋(gai)不導向(xiang)時,顯得特(te)別重要,因為壓(ya)(ya)(ya)(ya)蓋(gai)必(bi)須對(dui)中(zhong)。