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精河如何對機械密封進行更換工作

發布時間(jian):2021-12-17 11:49:09 人(ren)氣:94789 來源:

  精河機械密封利用(yong)(yong)(yong)機(ji)械方式傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)力(li)和(he)(he)運動(dong)(dong)(dong)(dong)的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong),機(ji)械傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)在機(ji)械工程中應用(yong)(yong)(yong)非常廣泛,有(you)多(duo)種形式,主要(yao)包括皮帶傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、齒(chi)輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、鏈(lian)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、蝸桿蝸輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、齒(chi)輪(lun)齒(chi)條傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)和(he)(he)螺(luo)旋傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)等(deng)。齒(chi)輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)能(neng)夠(gou)用(yong)(yong)(yong)于大(da)功率的(de)場(chang)合(he),傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)比準(zhun)確,但一(yi)(yi)般(ban)要(yao)求較(jiao)高的(de)制造精度和(he)(he)安裝精度。還(huan)有(you)一(yi)(yi)類是靠機(ji)件(jian)間的(de)摩擦力(li)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)力(li)和(he)(he)運動(dong)(dong)(dong)(dong)的(de)摩擦傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong),包括帶傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)和(he)(he)摩擦輪(lun)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)等(deng)。摩擦傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)容(rong)易實現無級變速,可(ke)以適應軸間距較(jiao)大(da)的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)場(chang)合(he),而過載(zai)打滑還(huan)能(neng)起到(dao)緩沖和(he)(he)保護(hu)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)裝置的(de)作用(yong)(yong)(yong),但這種傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)一(yi)(yi)般(ban)不能(neng)用(yong)(yong)(yong)于大(da)功率的(de)場(chang)合(he),也不能(neng)保證準(zhun)確的(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)比。


  傳動形式多,但是精河機械密封的更換工作大同小異,首(shou)先(xian)拆前需確認電機處(chu)于檢修狀態,擰下加油螺(luo)塞,用(yong)吸管把密封座腔內的潤滑油吸出。準備好放置泵(beng)零件(jian)的工作臺及(ji)拆裝工具,切勿任意亂放亂用(yong),避(bi)免碰壞泵(beng)的零部(bu)件(jian)。


  拆對分式聯(lian)(lian)軸(zhou)(zhou)器(qi):先把聯(lian)(lian)軸(zhou)(zhou)器(qi)的固(gu)定內(nei)六角螺釘(ding)擰下(xia)來,再輕(qing)輕(qing)把聯(lian)(lian)軸(zhou)(zhou)器(qi)的一半從(cong)軸(zhou)(zhou)上慢慢拉(la)下(xia),注意不要掉了,再用(yong)梅花扳手擰下(xia)泵(beng)軸(zhou)(zhou)吊緊螺栓(shuan)和擋(dang)塊(kuai),讓(rang)葉輪慢慢下(xia)沉至泵(beng)體,然(ran)后拆下(xia)另外一半聯(lian)(lian)軸(zhou)(zhou)器(qi),拿(na)下(xia)泵(beng)軸(zhou)(zhou)擋(dang)圈。

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  拆卸精河機械密封:抓住密封(feng)彈簧順著(zhu)泵軸往上提,就能拆下來了。


  拆卸并(bing)清洗軸(zhou)承(cheng)座(zuo):先輕輕松動一下軸(zhou)承(cheng)座(zuo)后用(yong)拆卸螺栓頂起軸(zhou)承(cheng)座(zuo),并(bing)且沿著泵軸(zhou)往上提而卸下,再(zai)用(yong)噴氣燃料清洗軸(zhou)承(cheng)及座(zuo),裝前晾干并(bing)涂抹(mo)少許20號(hao)機械油用(yong)來潤滑(hua)保(bao)護(hu)。


  拆密封座(zuo):擰下密封座(zuo)壓緊螺母,輕輕卸下密封座(zuo)并清洗。


  精河機械密封裝(zhuang)(zhuang)(zhuang)配:在動、靜(jing)環鏡面(mian)上(shang)涂一層(ceng)潔凈(jing)的(de)20號潤(run)滑(hua)(hua)油,導(dao)軸(zhou)承(cheng)座也抹上(shang)潤(run)滑(hua)(hua)油,先把靜(jing)環輕(qing)輕(qing)定(ding)位(wei)裝(zhuang)(zhuang)(zhuang)入(ru)(ru)導(dao)軸(zhou)承(cheng)座,再在泵軸(zhou)上(shang)抹上(shang)潤(run)滑(hua)(hua)油,把動環部(bu)分(fen)輕(qing)輕(qing)裝(zhuang)(zhuang)(zhuang)入(ru)(ru)泵軸(zhou)上(shang),用手輕(qing)推密封環應能伸(shen)縮(suo)自如(ru),注(zhu)意動、靜(jing)環部(bu)分(fen)的(de)防(fang)轉(zhuan)部(bu)位(wei)需裝(zhuang)(zhuang)(zhuang)配到位(wei)。


  裝聯軸(zhou)(zhou)器(qi):在(zai)電機(ji)軸(zhou)(zhou)頭上(shang)裝上(shang)擋圈,裝上(shang)一(yi)半聯軸(zhou)(zhou)器(qi),再在(zai)泵軸(zhou)(zhou)端(duan)和聯軸(zhou)(zhou)器(qi)槽內(nei)裝上(shang)擋塊并用(yong)梅花扳手(shou)擰(ning)緊螺(luo)栓;再裝上(shang)另一(yi)半聯軸(zhou)(zhou)器(qi)擰(ning)上(shang)內(nei)六角螺(luo)釘。安裝聯軸(zhou)(zhou)器(qi)正確的檢查要求(qiu):對分式(shi)聯軸(zhou)(zhou)器(qi)上(shang)下間隙需要均(jun)勻(yun),用(yong)手(shou)盤動聯軸(zhou)(zhou)器(qi)幾圈檢查轉動的靈(ling)活性。


  裝(zhuang)密封(feng)座:先將密封(feng)座裝(zhuang)入橡膠油封(feng),再把密封(feng)座裝(zhuang)入泵蓋并壓(ya)(ya)(ya)在(zai)軸承(cheng)座上,擰(ning)緊螺母,確保所(suo)有安裝(zhuang)螺釘緊固(gu)。當安裝(zhuang)螺釘被用作密封(feng)與軸之間的(de)驅(qu)動時(shi)(shi),軸應打埋頭(tou)孔(kong)來加固(gu)連(lian)接(jie),緊固(gu)壓(ya)(ya)(ya)蓋螺栓時(shi)(shi)應該(gai)平穩緊固(gu),并且不要使(shi)壓(ya)(ya)(ya)蓋受彈力。在(zai)可(ke)能的(de)地方使(shi)用4個以上螺釘的(de)等間距壓(ya)(ya)(ya)蓋,緊固(gu)壓(ya)(ya)(ya)蓋螺栓時(shi)(shi),用塞尺檢查軸與壓(ya)(ya)(ya)蓋之間的(de)間隙(xi),這在(zai)密封(feng)腔(qiang)對壓(ya)(ya)(ya)蓋不導向(xiang)時(shi)(shi),顯得特別重要,因(yin)為壓(ya)(ya)(ya)蓋必須對中。