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發布時(shi)間(jian):2021-12-17 11:49:09 人氣(qi):98972 來源:
黑水機械密封利用(yong)機(ji)械(xie)方式傳(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力(li)和(he)(he)運動(dong)(dong)(dong)的(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong),機(ji)械(xie)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)在機(ji)械(xie)工程(cheng)中(zhong)應用(yong)非常廣泛,有多(duo)種形式,主要包括(kuo)(kuo)皮帶傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、鏈傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、蝸桿(gan)蝸輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、齒輪(lun)齒條傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)(he)螺旋(xuan)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。齒輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)能夠用(yong)于(yu)大功率的(de)(de)場(chang)合(he),傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比準(zhun)確(que),但一(yi)般要求(qiu)較高的(de)(de)制造精度和(he)(he)安裝(zhuang)精度。還有一(yi)類(lei)是靠機(ji)件間的(de)(de)摩(mo)擦(ca)(ca)力(li)傳(chuan)(chuan)(chuan)遞動(dong)(dong)(dong)力(li)和(he)(he)運動(dong)(dong)(dong)的(de)(de)摩(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong),包括(kuo)(kuo)帶傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)、繩傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)和(he)(he)摩(mo)擦(ca)(ca)輪(lun)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)等。摩(mo)擦(ca)(ca)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)容易實現(xian)無級變速,可以(yi)適應軸間距較大的(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)場(chang)合(he),而過載打滑還能起到緩(huan)沖和(he)(he)保護傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)裝(zhuang)置的(de)(de)作用(yong),但這種傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)一(yi)般不能用(yong)于(yu)大功率的(de)(de)場(chang)合(he),也(ye)不能保證(zheng)準(zhun)確(que)的(de)(de)傳(chuan)(chuan)(chuan)動(dong)(dong)(dong)比。
傳動形式多,但是黑水機械密封的更換工作大同(tong)小(xiao)異,首先拆(chai)(chai)前需確認電(dian)機處于(yu)檢修(xiu)狀態,擰下加油螺塞(sai),用吸(xi)管把(ba)密(mi)封座腔(qiang)內的潤滑油吸(xi)出(chu)。準備好(hao)放置泵零件(jian)(jian)的工作臺及拆(chai)(chai)裝工具,切勿任意亂放亂用,避(bi)免(mian)碰壞泵的零部件(jian)(jian)。
拆對分式聯軸器(qi):先把(ba)聯軸器(qi)的固定內六角(jiao)螺釘擰下(xia)來,再輕輕把(ba)聯軸器(qi)的一半從(cong)軸上慢慢拉(la)下(xia),注意不要(yao)掉了(le),再用梅花(hua)扳(ban)手擰下(xia)泵軸吊緊(jin)螺栓和擋塊,讓(rang)葉(xie)輪慢慢下(xia)沉至泵體,然后拆下(xia)另外一半聯軸器(qi),拿下(xia)泵軸擋圈(quan)。
拆卸黑水機械密封:抓住(zhu)密封彈簧順著(zhu)泵軸往上提,就能拆下來了(le)。
拆(chai)卸并清洗軸(zhou)承(cheng)座:先(xian)輕(qing)(qing)輕(qing)(qing)松動(dong)一下軸(zhou)承(cheng)座后用拆(chai)卸螺栓頂(ding)起軸(zhou)承(cheng)座,并且沿(yan)著泵軸(zhou)往上提而卸下,再用噴氣燃料清洗軸(zhou)承(cheng)及(ji)座,裝(zhuang)前晾干并涂(tu)抹少(shao)許20號(hao)機械油用來潤滑保(bao)護。
拆(chai)密封座:擰下密封座壓緊螺母(mu),輕(qing)輕(qing)卸下密封座并(bing)清(qing)洗。
黑水機械密封裝配:在動(dong)、靜(jing)環(huan)(huan)鏡面上涂一層潔凈的(de)20號潤滑(hua)油,導軸(zhou)(zhou)(zhou)承(cheng)座也抹上潤滑(hua)油,先把(ba)(ba)靜(jing)環(huan)(huan)輕(qing)(qing)輕(qing)(qing)定位裝入導軸(zhou)(zhou)(zhou)承(cheng)座,再在泵(beng)軸(zhou)(zhou)(zhou)上抹上潤滑(hua)油,把(ba)(ba)動(dong)環(huan)(huan)部分輕(qing)(qing)輕(qing)(qing)裝入泵(beng)軸(zhou)(zhou)(zhou)上,用手輕(qing)(qing)推(tui)密封環(huan)(huan)應能伸縮自如,注意動(dong)、靜(jing)環(huan)(huan)部分的(de)防(fang)轉部位需裝配到位。
裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi):在(zai)電機軸(zhou)(zhou)頭上(shang)裝(zhuang)(zhuang)上(shang)擋圈(quan)(quan),裝(zhuang)(zhuang)上(shang)一半聯(lian)軸(zhou)(zhou)器(qi)(qi),再(zai)在(zai)泵軸(zhou)(zhou)端(duan)和(he)聯(lian)軸(zhou)(zhou)器(qi)(qi)槽內裝(zhuang)(zhuang)上(shang)擋塊并用梅花扳手擰緊螺(luo)栓;再(zai)裝(zhuang)(zhuang)上(shang)另一半聯(lian)軸(zhou)(zhou)器(qi)(qi)擰上(shang)內六角螺(luo)釘。安裝(zhuang)(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi)正確的(de)檢查(cha)(cha)要(yao)求:對分式聯(lian)軸(zhou)(zhou)器(qi)(qi)上(shang)下間隙需要(yao)均勻,用手盤動(dong)聯(lian)軸(zhou)(zhou)器(qi)(qi)幾圈(quan)(quan)檢查(cha)(cha)轉動(dong)的(de)靈(ling)活性。
裝(zhuang)密(mi)封座:先將密(mi)封座裝(zhuang)入橡膠油封,再把密(mi)封座裝(zhuang)入泵蓋(gai)(gai)并壓(ya)(ya)在軸(zhou)承座上,擰緊(jin)(jin)螺(luo)(luo)(luo)母,確保(bao)所有(you)安(an)裝(zhuang)螺(luo)(luo)(luo)釘緊(jin)(jin)固(gu)。當(dang)安(an)裝(zhuang)螺(luo)(luo)(luo)釘被(bei)用作密(mi)封與(yu)軸(zhou)之(zhi)間的驅動時(shi)(shi),軸(zhou)應打埋頭孔來加固(gu)連接(jie),緊(jin)(jin)固(gu)壓(ya)(ya)蓋(gai)(gai)螺(luo)(luo)(luo)栓時(shi)(shi)應該(gai)平穩緊(jin)(jin)固(gu),并且不要使壓(ya)(ya)蓋(gai)(gai)受彈力。在可能的地方(fang)使用4個(ge)以(yi)上螺(luo)(luo)(luo)釘的等間距壓(ya)(ya)蓋(gai)(gai),緊(jin)(jin)固(gu)壓(ya)(ya)蓋(gai)(gai)螺(luo)(luo)(luo)栓時(shi)(shi),用塞尺檢(jian)查軸(zhou)與(yu)壓(ya)(ya)蓋(gai)(gai)之(zhi)間的間隙,這在密(mi)封腔對(dui)壓(ya)(ya)蓋(gai)(gai)不導向時(shi)(shi),顯得(de)特(te)別(bie)重要,因為壓(ya)(ya)蓋(gai)(gai)必須(xu)對(dui)中。