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金堂如何對機械密封進行更換工作

發布時間:2021-06-01 15:17:49 人氣:172273 來源(yuan):川工密(mi)封(feng)

  金堂機械密封利用機(ji)械方式(shi)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)力(li)(li)和(he)(he)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)的傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong),機(ji)械傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)在機(ji)械工程中應用非常(chang)廣泛(fan),有多種(zhong)形(xing)式(shi),主要包括(kuo)皮帶(dai)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、蝸(gua)桿(gan)蝸(gua)輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、齒輪齒條傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)螺旋傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)等。齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)能夠(gou)用于大功(gong)率(lv)的場(chang)合,傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)比(bi)準確(que),但一(yi)般(ban)要求較高的制造精度和(he)(he)安(an)裝精度。還有一(yi)類是(shi)靠機(ji)件間的摩(mo)擦(ca)(ca)力(li)(li)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)力(li)(li)和(he)(he)運(yun)動(dong)(dong)(dong)(dong)(dong)(dong)的摩(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong),包括(kuo)帶(dai)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)摩(mo)擦(ca)(ca)輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)等。摩(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)容易實現(xian)無級變速,可以適應軸間距較大的傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)場(chang)合,而過載(zai)打(da)滑還能起到緩沖和(he)(he)保(bao)護(hu)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)裝置的作(zuo)用,但這(zhe)種(zhong)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)一(yi)般(ban)不(bu)能用于大功(gong)率(lv)的場(chang)合,也不(bu)能保(bao)證(zheng)準確(que)的傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)比(bi)。

  傳動形式多,但是金堂機械密封的(de)(de)(de)更換工(gong)(gong)作大(da)同小異,首先(xian)拆前需確認電(dian)機處于檢(jian)修(xiu)狀(zhuang)態,擰下加油螺(luo)塞,用吸(xi)管把密封座腔內的(de)(de)(de)潤滑(hua)油吸(xi)出。準備好放(fang)置泵零件(jian)的(de)(de)(de)工(gong)(gong)作臺(tai)及(ji)拆裝工(gong)(gong)具,切勿任意亂放(fang)亂用,避免碰(peng)壞泵的(de)(de)(de)零部件(jian)。

  拆對(dui)分式聯(lian)(lian)軸(zhou)器(qi)(qi):先把聯(lian)(lian)軸(zhou)器(qi)(qi)的固定內六角螺(luo)釘擰下(xia)來,再(zai)輕(qing)輕(qing)把聯(lian)(lian)軸(zhou)器(qi)(qi)的一半從軸(zhou)上(shang)慢慢拉下(xia),注意不要掉了(le),再(zai)用梅花扳(ban)手擰下(xia)泵軸(zhou)吊緊螺(luo)栓(shuan)和(he)擋塊(kuai),讓(rang)葉輪(lun)慢慢下(xia)沉至泵體,然(ran)后拆下(xia)另外一半聯(lian)(lian)軸(zhou)器(qi)(qi),拿下(xia)泵軸(zhou)擋圈。

  拆卸金堂機械密封:抓(zhua)住密封彈簧順著(zhu)泵軸往上提,就能拆下來了。

  拆卸(xie)并(bing)清洗軸(zhou)(zhou)承座:先輕(qing)輕(qing)松動(dong)一(yi)下軸(zhou)(zhou)承座后用拆卸(xie)螺栓頂起軸(zhou)(zhou)承座,并(bing)且沿著泵軸(zhou)(zhou)往上提而卸(xie)下,再用噴(pen)氣燃料清洗軸(zhou)(zhou)承及(ji)座,裝前晾干并(bing)涂抹少許20號機械油用來(lai)潤滑保護。

  拆(chai)密(mi)(mi)封(feng)座:擰下密(mi)(mi)封(feng)座壓緊螺母,輕(qing)輕(qing)卸下密(mi)(mi)封(feng)座并清洗(xi)。

  金堂機械密封裝配(pei):在(zai)動(dong)(dong)、靜環(huan)鏡(jing)面上(shang)涂一(yi)層(ceng)潔凈的(de)20號潤(run)滑(hua)油(you),導軸(zhou)承座也抹上(shang)潤(run)滑(hua)油(you),先把(ba)靜環(huan)輕(qing)(qing)輕(qing)(qing)定位(wei)(wei)裝入導軸(zhou)承座,再(zai)在(zai)泵軸(zhou)上(shang)抹上(shang)潤(run)滑(hua)油(you),把(ba)動(dong)(dong)環(huan)部分(fen)輕(qing)(qing)輕(qing)(qing)裝入泵軸(zhou)上(shang),用手(shou)輕(qing)(qing)推密封(feng)環(huan)應能伸縮自如,注意動(dong)(dong)、靜環(huan)部分(fen)的(de)防(fang)轉(zhuan)部位(wei)(wei)需裝配(pei)到位(wei)(wei)。

  裝(zhuang)(zhuang)聯(lian)軸(zhou)器:在電機軸(zhou)頭上(shang)裝(zhuang)(zhuang)上(shang)擋圈(quan),裝(zhuang)(zhuang)上(shang)一(yi)半(ban)聯(lian)軸(zhou)器,再(zai)在泵軸(zhou)端和聯(lian)軸(zhou)器槽內裝(zhuang)(zhuang)上(shang)擋塊并用(yong)梅花扳手擰緊螺(luo)栓;再(zai)裝(zhuang)(zhuang)上(shang)另一(yi)半(ban)聯(lian)軸(zhou)器擰上(shang)內六(liu)角螺(luo)釘。安裝(zhuang)(zhuang)聯(lian)軸(zhou)器正(zheng)確(que)的(de)檢查要求:對分式聯(lian)軸(zhou)器上(shang)下(xia)間隙需要均勻,用(yong)手盤(pan)動聯(lian)軸(zhou)器幾圈(quan)檢查轉(zhuan)動的(de)靈(ling)活(huo)性。

  裝(zhuang)密(mi)封(feng)(feng)座(zuo)(zuo):先將密(mi)封(feng)(feng)座(zuo)(zuo)裝(zhuang)入(ru)橡(xiang)膠油(you)封(feng)(feng),再把密(mi)封(feng)(feng)座(zuo)(zuo)裝(zhuang)入(ru)泵蓋(gai)(gai)并壓(ya)在軸承座(zuo)(zuo)上,擰緊螺(luo)母,確保所有安裝(zhuang)螺(luo)釘(ding)(ding)緊固。當(dang)安裝(zhuang)螺(luo)釘(ding)(ding)被(bei)用(yong)(yong)作密(mi)封(feng)(feng)與(yu)軸之(zhi)間(jian)的(de)(de)驅動(dong)時(shi),軸應(ying)打埋頭孔來加固連(lian)接,緊固壓(ya)蓋(gai)(gai)螺(luo)栓時(shi)應(ying)該(gai)平穩緊固,并且不(bu)要使(shi)壓(ya)蓋(gai)(gai)受彈力。在可能的(de)(de)地方使(shi)用(yong)(yong)4個以上螺(luo)釘(ding)(ding)的(de)(de)等(deng)間(jian)距壓(ya)蓋(gai)(gai),緊固壓(ya)蓋(gai)(gai)螺(luo)栓時(shi),用(yong)(yong)塞尺(chi)檢查軸與(yu)壓(ya)蓋(gai)(gai)之(zhi)間(jian)的(de)(de)間(jian)隙,這在密(mi)封(feng)(feng)腔對壓(ya)蓋(gai)(gai)不(bu)導向(xiang)時(shi),顯得特別重要,因為壓(ya)蓋(gai)(gai)必須對中。