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金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(ren)氣:94855 來源:

  金臺機械密封利用機械(xie)(xie)方式(shi)傳(chuan)遞動(dong)(dong)(dong)(dong)(dong)力(li)和(he)運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)(dong),機械(xie)(xie)傳(chuan)動(dong)(dong)(dong)(dong)(dong)在機械(xie)(xie)工程中應(ying)用非常(chang)廣泛,有(you)多(duo)種形式(shi),主(zhu)要包(bao)括(kuo)皮帶(dai)傳(chuan)動(dong)(dong)(dong)(dong)(dong)、齒輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)動(dong)(dong)(dong)(dong)(dong)、蝸(gua)桿蝸(gua)輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)、齒輪齒條(tiao)傳(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)螺旋傳(chuan)動(dong)(dong)(dong)(dong)(dong)等(deng)。齒輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)能(neng)夠用于大功率的(de)(de)(de)場(chang)合,傳(chuan)動(dong)(dong)(dong)(dong)(dong)比(bi)準(zhun)確,但一般要求(qiu)較(jiao)高的(de)(de)(de)制造(zao)精度和(he)安裝(zhuang)(zhuang)精度。還有(you)一類是靠(kao)機件間(jian)的(de)(de)(de)摩擦(ca)力(li)傳(chuan)遞動(dong)(dong)(dong)(dong)(dong)力(li)和(he)運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)摩擦(ca)傳(chuan)動(dong)(dong)(dong)(dong)(dong),包(bao)括(kuo)帶(dai)傳(chuan)動(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)摩擦(ca)輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)等(deng)。摩擦(ca)傳(chuan)動(dong)(dong)(dong)(dong)(dong)容易實(shi)現(xian)無級變速(su),可以適應(ying)軸(zhou)間(jian)距較(jiao)大的(de)(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)(dong)場(chang)合,而(er)過(guo)載打滑還能(neng)起到緩沖和(he)保護傳(chuan)動(dong)(dong)(dong)(dong)(dong)裝(zhuang)(zhuang)置的(de)(de)(de)作(zuo)用,但這種傳(chuan)動(dong)(dong)(dong)(dong)(dong)一般不(bu)能(neng)用于大功率的(de)(de)(de)場(chang)合,也不(bu)能(neng)保證準(zhun)確的(de)(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)(dong)比(bi)。


  傳動形式多,但是金臺機械密封的(de)更(geng)換(huan)工(gong)作大(da)同小異,首先拆(chai)前需確認電(dian)機處于檢修狀(zhuang)態,擰(ning)下(xia)加油螺塞,用吸管把密封座腔(qiang)內的(de)潤滑(hua)油吸出(chu)。準備好(hao)放置泵(beng)零(ling)件的(de)工(gong)作臺及(ji)拆(chai)裝工(gong)具,切(qie)勿任意亂(luan)放亂(luan)用,避免碰(peng)壞泵(beng)的(de)零(ling)部(bu)件。


  拆對(dui)分式聯軸(zhou)器(qi):先把聯軸(zhou)器(qi)的固定內六(liu)角(jiao)螺釘擰下來,再(zai)輕輕把聯軸(zhou)器(qi)的一半從軸(zhou)上慢(man)慢(man)拉(la)下,注意(yi)不(bu)要掉了,再(zai)用梅花(hua)扳手擰下泵軸(zhou)吊(diao)緊螺栓(shuan)和(he)擋塊,讓葉(xie)輪慢(man)慢(man)下沉至(zhi)泵體,然(ran)后(hou)拆下另外一半聯軸(zhou)器(qi),拿下泵軸(zhou)擋圈。

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  拆卸金臺機械密封:抓住密(mi)封(feng)彈簧順著泵(beng)軸往上提(ti),就能拆下(xia)來了。


  拆卸并清洗軸承(cheng)座(zuo)(zuo)(zuo):先輕輕松動一下軸承(cheng)座(zuo)(zuo)(zuo)后用拆卸螺栓頂起軸承(cheng)座(zuo)(zuo)(zuo),并且沿著(zhu)泵軸往上提而(er)卸下,再用噴氣燃料清洗軸承(cheng)及(ji)座(zuo)(zuo)(zuo),裝前晾干并涂抹少許20號機械油用來潤滑保護。


  拆密(mi)(mi)封(feng)座(zuo):擰下(xia)(xia)密(mi)(mi)封(feng)座(zuo)壓緊螺母,輕輕卸下(xia)(xia)密(mi)(mi)封(feng)座(zuo)并清(qing)洗。


  金臺機械密封裝(zhuang)配(pei):在動、靜(jing)環(huan)鏡面上(shang)(shang)涂一層潔凈的(de)20號潤滑(hua)油(you),導軸承座(zuo)也(ye)抹上(shang)(shang)潤滑(hua)油(you),先把(ba)靜(jing)環(huan)輕輕定位裝(zhuang)入導軸承座(zuo),再在泵軸上(shang)(shang)抹上(shang)(shang)潤滑(hua)油(you),把(ba)動環(huan)部(bu)分輕輕裝(zhuang)入泵軸上(shang)(shang),用(yong)手輕推(tui)密封環(huan)應(ying)能伸縮自如,注意動、靜(jing)環(huan)部(bu)分的(de)防轉部(bu)位需裝(zhuang)配(pei)到位。


  裝(zhuang)聯(lian)(lian)軸(zhou)器(qi)(qi):在(zai)(zai)電機軸(zhou)頭上(shang)(shang)裝(zhuang)上(shang)(shang)擋圈,裝(zhuang)上(shang)(shang)一半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi),再在(zai)(zai)泵軸(zhou)端(duan)和(he)聯(lian)(lian)軸(zhou)器(qi)(qi)槽(cao)內(nei)裝(zhuang)上(shang)(shang)擋塊并用梅花扳手擰(ning)緊螺栓(shuan);再裝(zhuang)上(shang)(shang)另一半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi)擰(ning)上(shang)(shang)內(nei)六(liu)角螺釘。安裝(zhuang)聯(lian)(lian)軸(zhou)器(qi)(qi)正確的檢查要求:對(dui)分式聯(lian)(lian)軸(zhou)器(qi)(qi)上(shang)(shang)下間隙需要均勻,用手盤動聯(lian)(lian)軸(zhou)器(qi)(qi)幾圈檢查轉動的靈活性。


  裝(zhuang)密封(feng)(feng)(feng)座(zuo):先(xian)將密封(feng)(feng)(feng)座(zuo)裝(zhuang)入橡膠油封(feng)(feng)(feng),再(zai)把(ba)密封(feng)(feng)(feng)座(zuo)裝(zhuang)入泵蓋并(bing)壓(ya)(ya)(ya)在(zai)軸承座(zuo)上,擰緊(jin)(jin)螺(luo)(luo)母,確保所(suo)有(you)安裝(zhuang)螺(luo)(luo)釘(ding)(ding)緊(jin)(jin)固。當安裝(zhuang)螺(luo)(luo)釘(ding)(ding)被用(yong)作密封(feng)(feng)(feng)與軸之(zhi)間的驅動時(shi)(shi),軸應(ying)打埋(mai)頭孔來加固連接(jie),緊(jin)(jin)固壓(ya)(ya)(ya)蓋螺(luo)(luo)栓時(shi)(shi)應(ying)該平(ping)穩緊(jin)(jin)固,并(bing)且(qie)不要使壓(ya)(ya)(ya)蓋受彈力。在(zai)可能的地方(fang)使用(yong)4個以(yi)上螺(luo)(luo)釘(ding)(ding)的等間距壓(ya)(ya)(ya)蓋,緊(jin)(jin)固壓(ya)(ya)(ya)蓋螺(luo)(luo)栓時(shi)(shi),用(yong)塞(sai)尺檢查軸與壓(ya)(ya)(ya)蓋之(zhi)間的間隙,這在(zai)密封(feng)(feng)(feng)腔對(dui)壓(ya)(ya)(ya)蓋不導向時(shi)(shi),顯得特別(bie)重要,因(yin)為壓(ya)(ya)(ya)蓋必(bi)須對(dui)中。