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南召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:179992 來源:川工(gong)密封

  南召機械密封利用機(ji)(ji)械(xie)方式傳(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)力(li)(li)和(he)(he)運動(dong)(dong)的傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong),機(ji)(ji)械(xie)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)在機(ji)(ji)械(xie)工程中應(ying)用非常廣泛,有多種(zhong)形式,主(zhu)要包(bao)括(kuo)(kuo)皮帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)、齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)、鏈傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)、蝸桿蝸輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)、齒輪齒條傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)和(he)(he)螺旋傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)等。齒輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)能(neng)夠用于大功率(lv)的場合(he),傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)比(bi)(bi)準確,但一般(ban)要求較高(gao)的制造(zao)精度和(he)(he)安裝精度。還有一類是靠機(ji)(ji)件間(jian)的摩(mo)擦(ca)力(li)(li)傳(chuan)(chuan)(chuan)(chuan)(chuan)遞動(dong)(dong)力(li)(li)和(he)(he)運動(dong)(dong)的摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong),包(bao)括(kuo)(kuo)帶傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)、繩傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)和(he)(he)摩(mo)擦(ca)輪傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)等。摩(mo)擦(ca)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)容易實現無(wu)級變速,可(ke)以適應(ying)軸間(jian)距(ju)較大的傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)場合(he),而過載(zai)打滑還能(neng)起到緩沖和(he)(he)保(bao)護傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)裝置的作(zuo)用,但這種(zhong)傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)一般(ban)不能(neng)用于大功率(lv)的場合(he),也不能(neng)保(bao)證準確的傳(chuan)(chuan)(chuan)(chuan)(chuan)動(dong)(dong)比(bi)(bi)。

  傳動形式多,但是南召機械密封的更(geng)換工作大同小異(yi),首先拆(chai)前需確認電機處于(yu)檢修(xiu)狀態,擰下加油(you)螺塞,用(yong)吸管把密封(feng)座(zuo)腔內的潤滑油(you)吸出。準備好(hao)放(fang)置泵(beng)(beng)零(ling)件(jian)的工作臺(tai)及拆(chai)裝工具(ju),切勿任意亂放(fang)亂用(yong),避免碰壞泵(beng)(beng)的零(ling)部(bu)件(jian)。

  拆對分式聯軸(zhou)(zhou)器(qi):先把聯軸(zhou)(zhou)器(qi)的固(gu)定內六角(jiao)螺釘(ding)擰下來,再(zai)輕輕把聯軸(zhou)(zhou)器(qi)的一(yi)半從(cong)軸(zhou)(zhou)上慢慢拉下,注意不要掉了,再(zai)用(yong)梅花扳(ban)手擰下泵軸(zhou)(zhou)吊緊螺栓和(he)擋(dang)塊(kuai),讓葉輪慢慢下沉至泵體,然(ran)后拆下另外一(yi)半聯軸(zhou)(zhou)器(qi),拿下泵軸(zhou)(zhou)擋(dang)圈。

  拆卸南召機械密封:抓(zhua)住密封彈簧順(shun)著(zhu)泵軸往上提,就能拆下來了。

  拆卸(xie)并(bing)清洗軸(zhou)承(cheng)(cheng)座(zuo):先(xian)輕輕松動(dong)一下軸(zhou)承(cheng)(cheng)座(zuo)后用拆卸(xie)螺栓頂起軸(zhou)承(cheng)(cheng)座(zuo),并(bing)且沿著泵(beng)軸(zhou)往上提而卸(xie)下,再用噴氣燃料清洗軸(zhou)承(cheng)(cheng)及座(zuo),裝前(qian)晾干并(bing)涂抹少許(xu)20號機械油用來潤滑保護。

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

  南召機械密封裝配:在(zai)動、靜(jing)環鏡面上(shang)涂一層潔(jie)凈的20號潤(run)滑油(you),導(dao)軸(zhou)承座也抹上(shang)潤(run)滑油(you),先把靜(jing)環輕(qing)輕(qing)定位(wei)裝入(ru)導(dao)軸(zhou)承座,再(zai)在(zai)泵軸(zhou)上(shang)抹上(shang)潤(run)滑油(you),把動環部(bu)分輕(qing)輕(qing)裝入(ru)泵軸(zhou)上(shang),用(yong)手輕(qing)推(tui)密封(feng)環應能伸縮自如,注意動、靜(jing)環部(bu)分的防轉部(bu)位(wei)需裝配到位(wei)。

  裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器(qi):在電機軸(zhou)(zhou)頭上(shang)裝(zhuang)(zhuang)上(shang)擋(dang)圈,裝(zhuang)(zhuang)上(shang)一半聯(lian)軸(zhou)(zhou)器(qi),再在泵軸(zhou)(zhou)端和(he)聯(lian)軸(zhou)(zhou)器(qi)槽內(nei)裝(zhuang)(zhuang)上(shang)擋(dang)塊并用(yong)(yong)梅花扳手(shou)擰緊(jin)螺栓;再裝(zhuang)(zhuang)上(shang)另(ling)一半聯(lian)軸(zhou)(zhou)器(qi)擰上(shang)內(nei)六角(jiao)螺釘。安裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器(qi)正(zheng)確的(de)檢查要(yao)求:對分式(shi)聯(lian)軸(zhou)(zhou)器(qi)上(shang)下間隙需要(yao)均勻(yun),用(yong)(yong)手(shou)盤動聯(lian)軸(zhou)(zhou)器(qi)幾圈檢查轉動的(de)靈活性(xing)。

  裝(zhuang)密封(feng)座(zuo)(zuo):先將密封(feng)座(zuo)(zuo)裝(zhuang)入橡(xiang)膠油封(feng),再(zai)把密封(feng)座(zuo)(zuo)裝(zhuang)入泵(beng)蓋(gai)(gai)(gai)并(bing)壓(ya)在軸(zhou)(zhou)承座(zuo)(zuo)上,擰緊螺(luo)母,確保所有安裝(zhuang)螺(luo)釘(ding)緊固(gu)(gu)。當安裝(zhuang)螺(luo)釘(ding)被(bei)用(yong)(yong)作(zuo)密封(feng)與(yu)軸(zhou)(zhou)之(zhi)間的驅動時,軸(zhou)(zhou)應打埋(mai)頭孔來加(jia)固(gu)(gu)連(lian)接,緊固(gu)(gu)壓(ya)蓋(gai)(gai)(gai)螺(luo)栓(shuan)時應該平穩緊固(gu)(gu),并(bing)且(qie)不要使壓(ya)蓋(gai)(gai)(gai)受彈力。在可能的地方使用(yong)(yong)4個以上螺(luo)釘(ding)的等間距壓(ya)蓋(gai)(gai)(gai),緊固(gu)(gu)壓(ya)蓋(gai)(gai)(gai)螺(luo)栓(shuan)時,用(yong)(yong)塞(sai)尺檢查軸(zhou)(zhou)與(yu)壓(ya)蓋(gai)(gai)(gai)之(zhi)間的間隙,這在密封(feng)腔對壓(ya)蓋(gai)(gai)(gai)不導向時,顯得特別重要,因為(wei)壓(ya)蓋(gai)(gai)(gai)必須對中(zhong)。