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侯馬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:183601 來源:川工(gong)密封

  侯馬機械密封利(li)用(yong)機械(xie)(xie)方(fang)式傳(chuan)遞動(dong)(dong)(dong)(dong)(dong)力和(he)運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)(dong),機械(xie)(xie)傳(chuan)動(dong)(dong)(dong)(dong)(dong)在(zai)機械(xie)(xie)工程中應用(yong)非常(chang)廣泛(fan),有多種形式,主要(yao)包(bao)括(kuo)皮(pi)帶傳(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)動(dong)(dong)(dong)(dong)(dong)、蝸桿蝸輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)輪齒(chi)條(tiao)傳(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)螺旋傳(chuan)動(dong)(dong)(dong)(dong)(dong)等。齒(chi)輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)能夠(gou)用(yong)于(yu)大功率(lv)的(de)(de)(de)場(chang)合(he),傳(chuan)動(dong)(dong)(dong)(dong)(dong)比準(zhun)確,但一般要(yao)求較(jiao)高的(de)(de)(de)制造精度和(he)安裝精度。還有一類是靠機件(jian)間的(de)(de)(de)摩(mo)擦力傳(chuan)遞動(dong)(dong)(dong)(dong)(dong)力和(he)運動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)摩(mo)擦傳(chuan)動(dong)(dong)(dong)(dong)(dong),包(bao)括(kuo)帶傳(chuan)動(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)摩(mo)擦輪傳(chuan)動(dong)(dong)(dong)(dong)(dong)等。摩(mo)擦傳(chuan)動(dong)(dong)(dong)(dong)(dong)容易實現(xian)無級變速,可以適應軸間距(ju)較(jiao)大的(de)(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)(dong)場(chang)合(he),而過(guo)載打滑(hua)還能起到緩沖和(he)保護傳(chuan)動(dong)(dong)(dong)(dong)(dong)裝置的(de)(de)(de)作用(yong),但這種傳(chuan)動(dong)(dong)(dong)(dong)(dong)一般不能用(yong)于(yu)大功率(lv)的(de)(de)(de)場(chang)合(he),也不能保證準(zhun)確的(de)(de)(de)傳(chuan)動(dong)(dong)(dong)(dong)(dong)比。

  傳動形式多,但是侯馬機械密封的更換工(gong)(gong)作(zuo)大(da)同小異,首先拆前需確認電機處于檢修狀(zhuang)態,擰下加油螺塞,用(yong)吸(xi)管把密封座腔內的潤滑油吸(xi)出。準備(bei)好放置泵零件的工(gong)(gong)作(zuo)臺及拆裝工(gong)(gong)具,切勿(wu)任意亂放亂用(yong),避免碰壞泵的零部件。

  拆對分式聯軸(zhou)(zhou)(zhou)器:先把聯軸(zhou)(zhou)(zhou)器的固定內(nei)六角(jiao)螺(luo)釘擰下來,再輕輕把聯軸(zhou)(zhou)(zhou)器的一半從(cong)軸(zhou)(zhou)(zhou)上慢(man)慢(man)拉下,注意(yi)不(bu)要掉了,再用梅花扳手擰下泵軸(zhou)(zhou)(zhou)吊緊螺(luo)栓和擋塊,讓葉輪慢(man)慢(man)下沉至泵體(ti),然后拆下另外一半聯軸(zhou)(zhou)(zhou)器,拿下泵軸(zhou)(zhou)(zhou)擋圈(quan)。

  拆卸侯馬機械密封:抓(zhua)住密封彈(dan)簧順著泵軸往上提,就能拆下(xia)來了。

  拆卸并清洗軸(zhou)(zhou)承座(zuo):先(xian)輕輕松(song)動一下(xia)軸(zhou)(zhou)承座(zuo)后用拆卸螺(luo)栓頂起軸(zhou)(zhou)承座(zuo),并且(qie)沿著泵(beng)軸(zhou)(zhou)往上提而卸下(xia),再用噴氣燃料清洗軸(zhou)(zhou)承及座(zuo),裝前晾干并涂抹(mo)少(shao)許20號機械(xie)油(you)用來潤滑保護。

  拆密封座(zuo):擰下(xia)密封座(zuo)壓緊(jin)螺母(mu),輕(qing)輕(qing)卸(xie)下(xia)密封座(zuo)并清洗(xi)。

  侯馬機械密封裝配:在動、靜環(huan)鏡面(mian)上(shang)(shang)涂(tu)一層(ceng)潔(jie)凈的(de)20號(hao)潤(run)滑油(you),導(dao)軸(zhou)(zhou)承座(zuo)也(ye)抹上(shang)(shang)潤(run)滑油(you),先把靜環(huan)輕(qing)輕(qing)定位裝入導(dao)軸(zhou)(zhou)承座(zuo),再在泵軸(zhou)(zhou)上(shang)(shang)抹上(shang)(shang)潤(run)滑油(you),把動環(huan)部分(fen)(fen)輕(qing)輕(qing)裝入泵軸(zhou)(zhou)上(shang)(shang),用手輕(qing)推密封環(huan)應能伸縮(suo)自如,注意動、靜環(huan)部分(fen)(fen)的(de)防(fang)轉部位需裝配到位。

  裝(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi):在電機軸(zhou)(zhou)頭(tou)上(shang)(shang)(shang)裝(zhuang)上(shang)(shang)(shang)擋(dang)圈,裝(zhuang)上(shang)(shang)(shang)一半(ban)聯(lian)軸(zhou)(zhou)器(qi)(qi),再在泵軸(zhou)(zhou)端和聯(lian)軸(zhou)(zhou)器(qi)(qi)槽內裝(zhuang)上(shang)(shang)(shang)擋(dang)塊并用梅花(hua)扳手擰(ning)緊螺栓(shuan);再裝(zhuang)上(shang)(shang)(shang)另一半(ban)聯(lian)軸(zhou)(zhou)器(qi)(qi)擰(ning)上(shang)(shang)(shang)內六角螺釘。安裝(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi)正確的(de)檢查要求:對分式聯(lian)軸(zhou)(zhou)器(qi)(qi)上(shang)(shang)(shang)下(xia)間隙(xi)需(xu)要均勻,用手盤動(dong)聯(lian)軸(zhou)(zhou)器(qi)(qi)幾(ji)圈檢查轉動(dong)的(de)靈活性。

  裝密(mi)(mi)封(feng)座(zuo):先將密(mi)(mi)封(feng)座(zuo)裝入橡膠油封(feng),再把密(mi)(mi)封(feng)座(zuo)裝入泵蓋并壓(ya)(ya)在軸承座(zuo)上,擰緊螺(luo)母,確保所有(you)安(an)裝螺(luo)釘緊固(gu)(gu)。當安(an)裝螺(luo)釘被用作密(mi)(mi)封(feng)與軸之間(jian)的(de)驅動時,軸應(ying)打埋頭孔來加固(gu)(gu)連接,緊固(gu)(gu)壓(ya)(ya)蓋螺(luo)栓時應(ying)該平(ping)穩緊固(gu)(gu),并且不要(yao)使(shi)壓(ya)(ya)蓋受彈(dan)力。在可能(neng)的(de)地方使(shi)用4個以(yi)上螺(luo)釘的(de)等間(jian)距壓(ya)(ya)蓋,緊固(gu)(gu)壓(ya)(ya)蓋螺(luo)栓時,用塞尺檢查軸與壓(ya)(ya)蓋之間(jian)的(de)間(jian)隙(xi),這在密(mi)(mi)封(feng)腔對壓(ya)(ya)蓋不導向(xiang)時,顯得(de)特別重要(yao),因為壓(ya)(ya)蓋必須對中。