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高郵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:183089 來源:川工密(mi)封

  高郵機械密封利用機械(xie)方式傳(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力和運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong),機械(xie)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)在機械(xie)工程中(zhong)應用非常廣(guang)泛,有多種形(xing)式,主要(yao)包括(kuo)皮帶傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒(chi)(chi)(chi)輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、蝸桿蝸輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒(chi)(chi)(chi)輪(lun)齒(chi)(chi)(chi)條傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和螺旋傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等。齒(chi)(chi)(chi)輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)能(neng)(neng)夠用于大(da)(da)功率(lv)(lv)的(de)場合,傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比(bi)準確,但(dan)一(yi)般要(yao)求(qiu)較(jiao)高的(de)制造(zao)精度(du)和安裝精度(du)。還(huan)有一(yi)類是靠機件間的(de)摩(mo)擦(ca)力傳(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力和運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)摩(mo)擦(ca)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong),包括(kuo)帶傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、繩(sheng)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和摩(mo)擦(ca)輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等。摩(mo)擦(ca)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)容易實現(xian)無級變速,可以適應軸間距(ju)較(jiao)大(da)(da)的(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)場合,而過載(zai)打滑還(huan)能(neng)(neng)起到(dao)緩沖和保護傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝置(zhi)的(de)作(zuo)用,但(dan)這種傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)一(yi)般不(bu)(bu)能(neng)(neng)用于大(da)(da)功率(lv)(lv)的(de)場合,也不(bu)(bu)能(neng)(neng)保證準確的(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比(bi)。

  傳動形式多,但是高郵機械密封的(de)(de)(de)更換工作大同小異,首先拆前需(xu)確認電(dian)機處于檢修狀態(tai),擰(ning)下加油(you)螺塞,用(yong)吸管把密封座腔內的(de)(de)(de)潤(run)滑油(you)吸出。準備好放置(zhi)泵零件(jian)的(de)(de)(de)工作臺(tai)及拆裝(zhuang)工具(ju),切勿任意亂放亂用(yong),避免(mian)碰(peng)壞泵的(de)(de)(de)零部件(jian)。

  拆(chai)對(dui)分式聯(lian)軸器:先把聯(lian)軸器的固(gu)定(ding)內六角(jiao)螺釘擰下(xia)來,再(zai)輕輕把聯(lian)軸器的一半(ban)從(cong)軸上(shang)慢慢拉下(xia),注意(yi)不(bu)要掉(diao)了,再(zai)用(yong)梅(mei)花扳手(shou)擰下(xia)泵(beng)軸吊緊螺栓(shuan)和擋塊,讓(rang)葉輪慢慢下(xia)沉(chen)至泵(beng)體(ti),然后拆(chai)下(xia)另外一半(ban)聯(lian)軸器,拿下(xia)泵(beng)軸擋圈(quan)。

  拆卸高郵機械密封:抓住密(mi)封(feng)彈簧順著泵(beng)軸(zhou)往(wang)上提,就(jiu)能(neng)拆(chai)下來了(le)。

  拆卸并清洗軸承座(zuo):先輕(qing)輕(qing)松動(dong)一下(xia)軸承座(zuo)后(hou)用拆卸螺栓頂起軸承座(zuo),并且沿著泵(beng)軸往上提(ti)而卸下(xia),再用噴氣燃料清洗軸承及座(zuo),裝(zhuang)前晾干并涂抹少許(xu)20號(hao)機(ji)械(xie)油用來潤滑保護。

  拆密(mi)封(feng)座(zuo):擰下(xia)密(mi)封(feng)座(zuo)壓(ya)緊(jin)螺母(mu),輕輕卸(xie)下(xia)密(mi)封(feng)座(zuo)并清洗。

  高郵機械密封裝配(pei):在動(dong)、靜環(huan)鏡(jing)面上(shang)(shang)涂一層潔凈(jing)的20號潤滑油,導軸(zhou)承座也抹(mo)上(shang)(shang)潤滑油,先把靜環(huan)輕(qing)(qing)輕(qing)(qing)定位裝入導軸(zhou)承座,再(zai)在泵(beng)軸(zhou)上(shang)(shang)抹(mo)上(shang)(shang)潤滑油,把動(dong)環(huan)部(bu)分輕(qing)(qing)輕(qing)(qing)裝入泵(beng)軸(zhou)上(shang)(shang),用手(shou)輕(qing)(qing)推密封(feng)環(huan)應能伸縮自如(ru),注意動(dong)、靜環(huan)部(bu)分的防轉部(bu)位需(xu)裝配(pei)到位。

  裝聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi):在電機軸(zhou)(zhou)(zhou)頭(tou)上(shang)裝上(shang)擋圈(quan),裝上(shang)一(yi)半聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi),再在泵(beng)軸(zhou)(zhou)(zhou)端和聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)槽(cao)內裝上(shang)擋塊并用(yong)(yong)梅花扳手擰緊螺栓;再裝上(shang)另一(yi)半聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)擰上(shang)內六角螺釘(ding)。安裝聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)正確(que)的檢(jian)查(cha)要(yao)求:對分式聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)上(shang)下間隙需要(yao)均勻(yun),用(yong)(yong)手盤(pan)動(dong)聯(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)幾圈(quan)檢(jian)查(cha)轉動(dong)的靈活(huo)性。

  裝(zhuang)密(mi)封(feng)座:先將密(mi)封(feng)座裝(zhuang)入橡(xiang)膠油(you)封(feng),再把密(mi)封(feng)座裝(zhuang)入泵蓋(gai)并壓(ya)在軸(zhou)承(cheng)座上,擰緊(jin)螺(luo)(luo)母,確保所有安(an)裝(zhuang)螺(luo)(luo)釘緊(jin)固。當安(an)裝(zhuang)螺(luo)(luo)釘被用作(zuo)密(mi)封(feng)與軸(zhou)之(zhi)間(jian)的驅動時(shi),軸(zhou)應(ying)(ying)打埋頭(tou)孔(kong)來加固連接,緊(jin)固壓(ya)蓋(gai)螺(luo)(luo)栓時(shi)應(ying)(ying)該平穩緊(jin)固,并且不要(yao)使(shi)壓(ya)蓋(gai)受彈(dan)力。在可能的地(di)方使(shi)用4個(ge)以上螺(luo)(luo)釘的等間(jian)距壓(ya)蓋(gai),緊(jin)固壓(ya)蓋(gai)螺(luo)(luo)栓時(shi),用塞尺檢查軸(zhou)與壓(ya)蓋(gai)之(zhi)間(jian)的間(jian)隙,這在密(mi)封(feng)腔對(dui)壓(ya)蓋(gai)不導向時(shi),顯得特別重要(yao),因為壓(ya)蓋(gai)必(bi)須(xu)對(dui)中。