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新絳如何對機械密封進行更換工作

發布時間:2021-06-01 15:17:49 人(ren)氣:172346 來源(yuan):川工密封

  新絳機械密封利用(yong)(yong)機械方式傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力和運動(dong)(dong)(dong)的(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong),機械傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)在機械工程中應(ying)用(yong)(yong)非(fei)常廣泛,有多種形(xing)式,主(zhu)要包括皮帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、蝸(gua)桿(gan)蝸(gua)輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒輪齒條傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和螺旋傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等(deng)。齒輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)能(neng)夠用(yong)(yong)于大(da)(da)功(gong)率(lv)的(de)(de)場合,傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比準確(que),但一(yi)般要求較(jiao)高的(de)(de)制造精度和安裝精度。還有一(yi)類是靠機件間(jian)的(de)(de)摩擦力傳(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力和運動(dong)(dong)(dong)的(de)(de)摩擦傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong),包括帶傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)和摩擦輪傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)等(deng)。摩擦傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)容易實現無級變(bian)速,可以適應(ying)軸(zhou)間(jian)距(ju)較(jiao)大(da)(da)的(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)場合,而過載打滑還能(neng)起到緩(huan)沖和保(bao)護傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)裝置(zhi)的(de)(de)作用(yong)(yong),但這種傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)一(yi)般不(bu)能(neng)用(yong)(yong)于大(da)(da)功(gong)率(lv)的(de)(de)場合,也(ye)不(bu)能(neng)保(bao)證準確(que)的(de)(de)傳(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)比。

  傳動形式多,但是新絳機械密封的(de)更換工作大同小異,首先(xian)拆前需確認電機處于檢(jian)修狀態(tai),擰下(xia)加油(you)螺塞,用吸管把密封座腔(qiang)內的(de)潤滑油(you)吸出。準備好放(fang)置泵(beng)零件的(de)工作臺及(ji)拆裝工具,切勿(wu)任意亂放(fang)亂用,避免碰壞(huai)泵(beng)的(de)零部件。

  拆對分式聯軸(zhou)器:先把聯軸(zhou)器的固定內六角螺(luo)釘(ding)擰下來,再(zai)輕輕把聯軸(zhou)器的一半(ban)從(cong)軸(zhou)上慢(man)慢(man)拉下,注意(yi)不要掉了(le),再(zai)用梅花(hua)扳手擰下泵(beng)(beng)軸(zhou)吊緊螺(luo)栓和擋(dang)塊,讓葉輪慢(man)慢(man)下沉至泵(beng)(beng)體(ti),然后拆下另外一半(ban)聯軸(zhou)器,拿下泵(beng)(beng)軸(zhou)擋(dang)圈。

  拆卸新絳機械密封:抓住密封彈簧順著泵軸往上提,就(jiu)能拆(chai)下來了。

  拆卸(xie)并清洗軸承座(zuo):先輕輕松動一下軸承座(zuo)后(hou)用拆卸(xie)螺(luo)栓頂起軸承座(zuo),并且沿(yan)著泵(beng)軸往上(shang)提(ti)而(er)卸(xie)下,再用噴氣(qi)燃料清洗軸承及座(zuo),裝(zhuang)前晾干并涂(tu)抹少(shao)許(xu)20號機(ji)械(xie)油用來潤滑保護。

  拆密封(feng)座(zuo)(zuo):擰下密封(feng)座(zuo)(zuo)壓(ya)緊螺母(mu),輕輕卸下密封(feng)座(zuo)(zuo)并清洗(xi)。

  新絳機械密封裝配:在動(dong)、靜(jing)環(huan)(huan)鏡面上涂一層潔凈(jing)的(de)20號潤滑(hua)油(you)(you),導軸承座(zuo)也抹上潤滑(hua)油(you)(you),先(xian)把靜(jing)環(huan)(huan)輕(qing)(qing)輕(qing)(qing)定位(wei)裝入導軸承座(zuo),再在泵軸上抹上潤滑(hua)油(you)(you),把動(dong)環(huan)(huan)部分輕(qing)(qing)輕(qing)(qing)裝入泵軸上,用手輕(qing)(qing)推密封環(huan)(huan)應(ying)能伸縮自如,注意動(dong)、靜(jing)環(huan)(huan)部分的(de)防轉(zhuan)部位(wei)需裝配到(dao)位(wei)。

  裝(zhuang)(zhuang)聯軸器(qi):在電機軸頭上(shang)裝(zhuang)(zhuang)上(shang)擋圈(quan),裝(zhuang)(zhuang)上(shang)一半聯軸器(qi),再在泵軸端和聯軸器(qi)槽內裝(zhuang)(zhuang)上(shang)擋塊并用梅花扳手擰緊螺栓;再裝(zhuang)(zhuang)上(shang)另(ling)一半聯軸器(qi)擰上(shang)內六(liu)角螺釘。安裝(zhuang)(zhuang)聯軸器(qi)正確(que)的檢查要(yao)求:對分式(shi)聯軸器(qi)上(shang)下間(jian)隙需要(yao)均勻,用手盤動聯軸器(qi)幾(ji)圈(quan)檢查轉動的靈活(huo)性。

  裝(zhuang)(zhuang)密封(feng)座:先將密封(feng)座裝(zhuang)(zhuang)入(ru)橡(xiang)膠(jiao)油封(feng),再把密封(feng)座裝(zhuang)(zhuang)入(ru)泵(beng)蓋(gai)(gai)(gai)并壓(ya)(ya)(ya)在(zai)軸(zhou)承座上,擰緊螺(luo)(luo)母,確保所有安裝(zhuang)(zhuang)螺(luo)(luo)釘緊固。當安裝(zhuang)(zhuang)螺(luo)(luo)釘被用(yong)作密封(feng)與軸(zhou)之間(jian)的(de)驅(qu)動時,軸(zhou)應打(da)埋頭孔(kong)來加(jia)固連接,緊固壓(ya)(ya)(ya)蓋(gai)(gai)(gai)螺(luo)(luo)栓時應該平穩緊固,并且不(bu)要(yao)使壓(ya)(ya)(ya)蓋(gai)(gai)(gai)受彈力(li)。在(zai)可能的(de)地方使用(yong)4個(ge)以上螺(luo)(luo)釘的(de)等間(jian)距壓(ya)(ya)(ya)蓋(gai)(gai)(gai),緊固壓(ya)(ya)(ya)蓋(gai)(gai)(gai)螺(luo)(luo)栓時,用(yong)塞尺檢查(cha)軸(zhou)與壓(ya)(ya)(ya)蓋(gai)(gai)(gai)之間(jian)的(de)間(jian)隙,這在(zai)密封(feng)腔對壓(ya)(ya)(ya)蓋(gai)(gai)(gai)不(bu)導向時,顯得特別(bie)重要(yao),因為(wei)壓(ya)(ya)(ya)蓋(gai)(gai)(gai)必(bi)須對中。