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琿春如何對機械密封進行更換工作

發布(bu)時間(jian):2021-06-01 15:17:49 人氣:183091 來源:川工密封

  琿春機械密封利用(yong)機(ji)械(xie)方式(shi)傳(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力和(he)(he)(he)運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong),機(ji)械(xie)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)在(zai)機(ji)械(xie)工程中(zhong)應(ying)(ying)用(yong)非常(chang)廣泛,有多種形(xing)式(shi),主(zhu)要(yao)包(bao)括(kuo)皮帶(dai)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒(chi)輪傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、蝸桿蝸輪傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、齒(chi)輪齒(chi)條(tiao)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)(he)螺旋(xuan)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等。齒(chi)輪傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)能夠用(yong)于大(da)功率的(de)(de)場合(he),傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比(bi)準(zhun)確,但一般要(yao)求較高(gao)的(de)(de)制造精度和(he)(he)(he)安裝(zhuang)精度。還有一類是靠機(ji)件間的(de)(de)摩(mo)擦力傳(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)力和(he)(he)(he)運動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)的(de)(de)摩(mo)擦傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong),包(bao)括(kuo)帶(dai)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)和(he)(he)(he)摩(mo)擦輪傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)等。摩(mo)擦傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)容(rong)易實(shi)現無級變速(su),可以適應(ying)(ying)軸間距較大(da)的(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)場合(he),而過(guo)載打滑還能起到緩沖(chong)和(he)(he)(he)保護傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)裝(zhuang)置的(de)(de)作用(yong),但這種傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)一般不(bu)能用(yong)于大(da)功率的(de)(de)場合(he),也不(bu)能保證準(zhun)確的(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)(dong)比(bi)。

  傳動形式多,但是琿春機械密封的(de)(de)更換工作大(da)同小異,首先拆(chai)前需確認(ren)電機(ji)處于檢修狀態,擰(ning)下加油(you)螺塞,用(yong)吸(xi)管把(ba)密封座腔(qiang)內(nei)的(de)(de)潤滑油(you)吸(xi)出。準備好(hao)放置泵(beng)(beng)零件的(de)(de)工作臺及拆(chai)裝工具,切勿(wu)任意亂放亂用(yong),避免碰壞泵(beng)(beng)的(de)(de)零部件。

  拆對分式聯(lian)(lian)軸(zhou)(zhou)器:先把聯(lian)(lian)軸(zhou)(zhou)器的固定內(nei)六角螺釘(ding)擰下(xia)來(lai),再(zai)輕輕把聯(lian)(lian)軸(zhou)(zhou)器的一(yi)半(ban)從軸(zhou)(zhou)上慢慢拉下(xia),注意(yi)不要掉了,再(zai)用梅(mei)花扳手擰下(xia)泵軸(zhou)(zhou)吊緊螺栓和擋塊(kuai),讓葉輪慢慢下(xia)沉至泵體,然后拆下(xia)另外一(yi)半(ban)聯(lian)(lian)軸(zhou)(zhou)器,拿(na)下(xia)泵軸(zhou)(zhou)擋圈。

  拆卸琿春機械密封:抓住密封彈簧順著(zhu)泵軸往上提(ti),就能(neng)拆下來(lai)了(le)。

  拆(chai)卸并清洗軸(zhou)(zhou)承(cheng)座:先輕輕松動(dong)一下軸(zhou)(zhou)承(cheng)座后用拆(chai)卸螺(luo)栓頂起軸(zhou)(zhou)承(cheng)座,并且沿著泵軸(zhou)(zhou)往上提而卸下,再用噴(pen)氣燃料清洗軸(zhou)(zhou)承(cheng)及座,裝(zhuang)前晾干并涂抹少許20號機械油用來(lai)潤(run)滑保護。

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

  琿春機械密封裝(zhuang)配(pei)(pei):在(zai)動、靜環(huan)(huan)鏡面上(shang)涂(tu)一層潔凈的(de)20號(hao)潤(run)(run)(run)滑油(you),導軸(zhou)(zhou)承座也抹(mo)(mo)上(shang)潤(run)(run)(run)滑油(you),先(xian)把(ba)靜環(huan)(huan)輕(qing)(qing)輕(qing)(qing)定位(wei)裝(zhuang)入(ru)(ru)導軸(zhou)(zhou)承座,再在(zai)泵軸(zhou)(zhou)上(shang)抹(mo)(mo)上(shang)潤(run)(run)(run)滑油(you),把(ba)動環(huan)(huan)部(bu)(bu)分(fen)輕(qing)(qing)輕(qing)(qing)裝(zhuang)入(ru)(ru)泵軸(zhou)(zhou)上(shang),用手輕(qing)(qing)推(tui)密封環(huan)(huan)應(ying)能伸縮(suo)自如,注意動、靜環(huan)(huan)部(bu)(bu)分(fen)的(de)防轉(zhuan)部(bu)(bu)位(wei)需裝(zhuang)配(pei)(pei)到位(wei)。

  裝(zhuang)(zhuang)聯軸(zhou)(zhou)器(qi)(qi):在電機軸(zhou)(zhou)頭上(shang)(shang)(shang)裝(zhuang)(zhuang)上(shang)(shang)(shang)擋(dang)圈(quan),裝(zhuang)(zhuang)上(shang)(shang)(shang)一半聯軸(zhou)(zhou)器(qi)(qi),再(zai)在泵(beng)軸(zhou)(zhou)端和(he)聯軸(zhou)(zhou)器(qi)(qi)槽內(nei)裝(zhuang)(zhuang)上(shang)(shang)(shang)擋(dang)塊并用梅花扳手(shou)擰緊螺栓;再(zai)裝(zhuang)(zhuang)上(shang)(shang)(shang)另(ling)一半聯軸(zhou)(zhou)器(qi)(qi)擰上(shang)(shang)(shang)內(nei)六角螺釘。安裝(zhuang)(zhuang)聯軸(zhou)(zhou)器(qi)(qi)正(zheng)確的檢(jian)查要求:對分式(shi)聯軸(zhou)(zhou)器(qi)(qi)上(shang)(shang)(shang)下(xia)間隙(xi)需要均勻,用手(shou)盤動(dong)聯軸(zhou)(zhou)器(qi)(qi)幾圈(quan)檢(jian)查轉(zhuan)動(dong)的靈活性(xing)。

  裝密(mi)封(feng)(feng)座(zuo)(zuo):先將密(mi)封(feng)(feng)座(zuo)(zuo)裝入橡膠(jiao)油(you)封(feng)(feng),再把(ba)密(mi)封(feng)(feng)座(zuo)(zuo)裝入泵蓋并壓(ya)(ya)(ya)在軸承座(zuo)(zuo)上,擰緊(jin)(jin)螺母,確保所有安裝螺釘緊(jin)(jin)固。當安裝螺釘被用(yong)作(zuo)密(mi)封(feng)(feng)與軸之(zhi)間(jian)(jian)的(de)驅動時,軸應打埋頭孔(kong)來加固連(lian)接,緊(jin)(jin)固壓(ya)(ya)(ya)蓋螺栓時應該平穩緊(jin)(jin)固,并且不要使(shi)壓(ya)(ya)(ya)蓋受(shou)彈力。在可能的(de)地(di)方使(shi)用(yong)4個以上螺釘的(de)等(deng)間(jian)(jian)距(ju)壓(ya)(ya)(ya)蓋,緊(jin)(jin)固壓(ya)(ya)(ya)蓋螺栓時,用(yong)塞尺檢查(cha)軸與壓(ya)(ya)(ya)蓋之(zhi)間(jian)(jian)的(de)間(jian)(jian)隙,這在密(mi)封(feng)(feng)腔對(dui)壓(ya)(ya)(ya)蓋不導向時,顯(xian)得(de)特別重要,因為壓(ya)(ya)(ya)蓋必須對(dui)中(zhong)。