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廣安如何對機械密封進行更換工作

發布時間(jian):2021-06-01 15:17:49 人氣:182955 來源(yuan):川工密封

  廣安機械密封利(li)用機(ji)(ji)械方式傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)力(li)和(he)運動(dong)(dong)(dong)(dong)的(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong),機(ji)(ji)械傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)在機(ji)(ji)械工(gong)程中應用非(fei)常廣泛,有(you)多種形(xing)式,主(zhu)要包(bao)括皮帶(dai)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、蝸桿蝸輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)、齒輪齒條傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)和(he)螺旋傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)等。齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)能夠用于大(da)功(gong)率的(de)(de)(de)場(chang)合,傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)比準確,但一(yi)(yi)般要求較(jiao)高(gao)的(de)(de)(de)制(zhi)造(zao)精度(du)和(he)安裝(zhuang)精度(du)。還(huan)有(you)一(yi)(yi)類(lei)是(shi)靠機(ji)(ji)件間的(de)(de)(de)摩(mo)擦力(li)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)(dong)力(li)和(he)運動(dong)(dong)(dong)(dong)的(de)(de)(de)摩(mo)擦傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong),包(bao)括帶(dai)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)摩(mo)擦輪傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)等。摩(mo)擦傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)容易實現無級變速,可以適應軸間距較(jiao)大(da)的(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)場(chang)合,而過載打滑還(huan)能起到緩沖和(he)保護(hu)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)裝(zhuang)置的(de)(de)(de)作用,但這種傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)一(yi)(yi)般不能用于大(da)功(gong)率的(de)(de)(de)場(chang)合,也不能保證(zheng)準確的(de)(de)(de)傳(chuan)(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)(dong)(dong)比。

  傳動形式多,但是廣安機械密封的更換工(gong)作(zuo)大(da)同(tong)小(xiao)異,首先(xian)拆前需確認電機處于檢(jian)修狀態,擰下加(jia)油螺塞(sai),用吸(xi)管把(ba)密封座腔內的潤滑油吸(xi)出。準備好放置泵零件的工(gong)作(zuo)臺及拆裝工(gong)具,切(qie)勿任意亂放亂用,避免碰壞泵的零部件。

  拆(chai)對分式聯軸(zhou)器:先把聯軸(zhou)器的固定內六角螺釘擰(ning)下(xia)來(lai),再(zai)輕輕把聯軸(zhou)器的一半從(cong)軸(zhou)上慢慢拉下(xia),注意不要(yao)掉了,再(zai)用梅花扳手擰(ning)下(xia)泵軸(zhou)吊緊螺栓和(he)擋塊,讓葉(xie)輪慢慢下(xia)沉(chen)至泵體,然后(hou)拆(chai)下(xia)另外一半聯軸(zhou)器,拿(na)下(xia)泵軸(zhou)擋圈。

  拆卸廣安機械密封:抓住密封(feng)彈(dan)簧(huang)順著泵(beng)軸往(wang)上(shang)提,就能拆下(xia)來了。

  拆(chai)卸(xie)并(bing)(bing)清洗軸承(cheng)座:先(xian)輕輕松動一下軸承(cheng)座后用拆(chai)卸(xie)螺(luo)栓頂(ding)起軸承(cheng)座,并(bing)(bing)且沿著泵軸往(wang)上提而卸(xie)下,再用噴氣(qi)燃料清洗軸承(cheng)及(ji)座,裝前晾干并(bing)(bing)涂抹少許20號機(ji)械油(you)用來(lai)潤滑保護。

  拆密封座:擰下(xia)密封座壓緊(jin)螺母(mu),輕輕卸下(xia)密封座并清(qing)洗。

  廣安機械密封裝配(pei):在(zai)動(dong)、靜環(huan)(huan)(huan)鏡面上(shang)涂(tu)一層潔凈的20號潤滑(hua)(hua)油(you),導軸(zhou)(zhou)(zhou)承(cheng)座也抹(mo)上(shang)潤滑(hua)(hua)油(you),先(xian)把(ba)靜環(huan)(huan)(huan)輕(qing)輕(qing)定位裝入導軸(zhou)(zhou)(zhou)承(cheng)座,再在(zai)泵軸(zhou)(zhou)(zhou)上(shang)抹(mo)上(shang)潤滑(hua)(hua)油(you),把(ba)動(dong)環(huan)(huan)(huan)部(bu)(bu)分輕(qing)輕(qing)裝入泵軸(zhou)(zhou)(zhou)上(shang),用手輕(qing)推密封環(huan)(huan)(huan)應能伸縮自(zi)如,注(zhu)意動(dong)、靜環(huan)(huan)(huan)部(bu)(bu)分的防轉部(bu)(bu)位需裝配(pei)到位。

  裝(zhuang)聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi):在(zai)電(dian)機軸(zhou)(zhou)(zhou)(zhou)頭上(shang)(shang)裝(zhuang)上(shang)(shang)擋(dang)圈,裝(zhuang)上(shang)(shang)一(yi)半聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi),再(zai)在(zai)泵軸(zhou)(zhou)(zhou)(zhou)端和聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)槽內裝(zhuang)上(shang)(shang)擋(dang)塊并(bing)用梅花扳手擰緊螺(luo)栓;再(zai)裝(zhuang)上(shang)(shang)另一(yi)半聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)擰上(shang)(shang)內六角螺(luo)釘。安裝(zhuang)聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)正確的(de)檢查要求:對分式聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)上(shang)(shang)下間(jian)隙需要均勻,用手盤(pan)動聯(lian)軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)幾圈檢查轉(zhuan)動的(de)靈活性(xing)。

  裝(zhuang)(zhuang)密封(feng)(feng)座(zuo)(zuo)(zuo):先將密封(feng)(feng)座(zuo)(zuo)(zuo)裝(zhuang)(zhuang)入橡(xiang)膠(jiao)油封(feng)(feng),再把密封(feng)(feng)座(zuo)(zuo)(zuo)裝(zhuang)(zhuang)入泵(beng)蓋(gai)并壓(ya)在軸(zhou)承座(zuo)(zuo)(zuo)上,擰緊(jin)螺母(mu),確保(bao)所有(you)安裝(zhuang)(zhuang)螺釘緊(jin)固(gu)(gu)。當安裝(zhuang)(zhuang)螺釘被用作密封(feng)(feng)與(yu)(yu)軸(zhou)之間(jian)的(de)驅(qu)動時,軸(zhou)應打(da)埋頭(tou)孔來加固(gu)(gu)連(lian)接(jie),緊(jin)固(gu)(gu)壓(ya)蓋(gai)螺栓時應該(gai)平(ping)穩(wen)緊(jin)固(gu)(gu),并且不要使壓(ya)蓋(gai)受(shou)彈力(li)。在可能(neng)的(de)地方使用4個以上螺釘的(de)等間(jian)距壓(ya)蓋(gai),緊(jin)固(gu)(gu)壓(ya)蓋(gai)螺栓時,用塞尺檢查軸(zhou)與(yu)(yu)壓(ya)蓋(gai)之間(jian)的(de)間(jian)隙,這在密封(feng)(feng)腔對(dui)壓(ya)蓋(gai)不導向時,顯得特別(bie)重要,因(yin)為壓(ya)蓋(gai)必須(xu)對(dui)中。