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發布時間:2021-12-17 11:49:09 人氣:94768 來源:
汶上機械密封利用(yong)機械(xie)方式傳(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)力和(he)運(yun)動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong),機械(xie)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)在機械(xie)工程(cheng)中應(ying)用(yong)非(fei)常廣泛,有(you)多種形式,主要包括皮帶傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)(chi)輪(lun)(lun)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、鏈傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、蝸(gua)(gua)桿蝸(gua)(gua)輪(lun)(lun)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、齒(chi)(chi)輪(lun)(lun)齒(chi)(chi)條傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)螺旋(xuan)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等。齒(chi)(chi)輪(lun)(lun)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)能夠用(yong)于大(da)功(gong)率的(de)(de)(de)(de)(de)場合,傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比準(zhun)確,但一(yi)(yi)般(ban)要求較高的(de)(de)(de)(de)(de)制造精度和(he)安裝精度。還(huan)有(you)一(yi)(yi)類是靠機件間的(de)(de)(de)(de)(de)摩(mo)擦力傳(chuan)(chuan)遞動(dong)(dong)(dong)(dong)(dong)力和(he)運(yun)動(dong)(dong)(dong)(dong)(dong)的(de)(de)(de)(de)(de)摩(mo)擦傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong),包括帶傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)、繩傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)和(he)摩(mo)擦輪(lun)(lun)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)等。摩(mo)擦傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)容易(yi)實(shi)現無級(ji)變速,可以適應(ying)軸間距較大(da)的(de)(de)(de)(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)場合,而過(guo)載打滑還(huan)能起(qi)到緩沖和(he)保護傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)裝置的(de)(de)(de)(de)(de)作用(yong),但這(zhe)種傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)一(yi)(yi)般(ban)不能用(yong)于大(da)功(gong)率的(de)(de)(de)(de)(de)場合,也(ye)不能保證準(zhun)確的(de)(de)(de)(de)(de)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)(dong)比。
傳動形式多,但是汶上機械密封的(de)更換工作大同小異,首先拆(chai)前需確認電機處于檢(jian)修狀(zhuang)態,擰下加油螺塞,用(yong)吸(xi)管把密(mi)封座腔(qiang)內的(de)潤滑油吸(xi)出。準備好放置(zhi)泵(beng)零件(jian)的(de)工作臺及拆(chai)裝工具,切(qie)勿任意亂(luan)放亂(luan)用(yong),避(bi)免碰壞泵(beng)的(de)零部件(jian)。
拆(chai)對(dui)分式聯(lian)軸(zhou)器(qi)(qi):先(xian)把(ba)聯(lian)軸(zhou)器(qi)(qi)的(de)固定(ding)內(nei)六角(jiao)螺(luo)釘擰下(xia)來(lai),再輕輕把(ba)聯(lian)軸(zhou)器(qi)(qi)的(de)一(yi)半從(cong)軸(zhou)上慢(man)(man)慢(man)(man)拉(la)下(xia),注意不(bu)要掉了,再用梅花(hua)扳(ban)手(shou)擰下(xia)泵(beng)軸(zhou)吊緊螺(luo)栓(shuan)和擋(dang)塊,讓(rang)葉輪慢(man)(man)慢(man)(man)下(xia)沉至泵(beng)體,然后拆(chai)下(xia)另外(wai)一(yi)半聯(lian)軸(zhou)器(qi)(qi),拿下(xia)泵(beng)軸(zhou)擋(dang)圈。
拆卸汶上機械密封:抓(zhua)住密(mi)封(feng)彈簧順著泵軸往上提,就能拆下(xia)來了(le)。
拆卸(xie)(xie)并清洗(xi)軸(zhou)(zhou)承座(zuo):先輕輕松動(dong)一下(xia)(xia)軸(zhou)(zhou)承座(zuo)后(hou)用(yong)拆卸(xie)(xie)螺栓頂起軸(zhou)(zhou)承座(zuo),并且沿(yan)著泵軸(zhou)(zhou)往上提而卸(xie)(xie)下(xia)(xia),再(zai)用(yong)噴氣燃料清洗(xi)軸(zhou)(zhou)承及(ji)座(zuo),裝前(qian)晾干并涂抹少許20號機(ji)械油用(yong)來(lai)潤滑保護。
拆密(mi)封座(zuo):擰下密(mi)封座(zuo)壓緊螺母(mu),輕(qing)輕(qing)卸下密(mi)封座(zuo)并清洗。
汶上機械密封裝(zhuang)(zhuang)配:在動、靜環(huan)(huan)鏡面上(shang)涂一層潔(jie)凈的(de)20號(hao)潤(run)滑(hua)油(you),導軸承(cheng)座也抹上(shang)潤(run)滑(hua)油(you),先(xian)把(ba)靜環(huan)(huan)輕(qing)輕(qing)定位(wei)裝(zhuang)(zhuang)入導軸承(cheng)座,再在泵(beng)軸上(shang)抹上(shang)潤(run)滑(hua)油(you),把(ba)動環(huan)(huan)部分輕(qing)輕(qing)裝(zhuang)(zhuang)入泵(beng)軸上(shang),用手輕(qing)推密封環(huan)(huan)應(ying)能伸縮自如,注意(yi)動、靜環(huan)(huan)部分的(de)防轉部位(wei)需裝(zhuang)(zhuang)配到位(wei)。
裝(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi):在電機軸(zhou)(zhou)頭上(shang)裝(zhuang)上(shang)擋圈(quan),裝(zhuang)上(shang)一(yi)半聯(lian)軸(zhou)(zhou)器(qi)(qi),再在泵(beng)軸(zhou)(zhou)端和聯(lian)軸(zhou)(zhou)器(qi)(qi)槽(cao)內(nei)裝(zhuang)上(shang)擋塊并(bing)用梅花扳手擰緊螺栓(shuan);再裝(zhuang)上(shang)另一(yi)半聯(lian)軸(zhou)(zhou)器(qi)(qi)擰上(shang)內(nei)六角螺釘。安裝(zhuang)聯(lian)軸(zhou)(zhou)器(qi)(qi)正確的檢(jian)查(cha)(cha)要(yao)求:對分式聯(lian)軸(zhou)(zhou)器(qi)(qi)上(shang)下間(jian)隙需(xu)要(yao)均勻,用手盤動(dong)聯(lian)軸(zhou)(zhou)器(qi)(qi)幾圈(quan)檢(jian)查(cha)(cha)轉動(dong)的靈(ling)活性。
裝密封(feng)(feng)(feng)座(zuo):先將密封(feng)(feng)(feng)座(zuo)裝入橡膠油封(feng)(feng)(feng),再(zai)把密封(feng)(feng)(feng)座(zuo)裝入泵蓋并(bing)壓(ya)(ya)在軸承座(zuo)上,擰緊(jin)(jin)(jin)螺(luo)母,確保所有安裝螺(luo)釘(ding)緊(jin)(jin)(jin)固(gu)(gu)。當安裝螺(luo)釘(ding)被用(yong)作密封(feng)(feng)(feng)與軸之(zhi)間的(de)(de)驅(qu)動時(shi)(shi),軸應打(da)埋(mai)頭孔來加固(gu)(gu)連接(jie),緊(jin)(jin)(jin)固(gu)(gu)壓(ya)(ya)蓋螺(luo)栓(shuan)(shuan)時(shi)(shi)應該(gai)平穩緊(jin)(jin)(jin)固(gu)(gu),并(bing)且(qie)不(bu)要使(shi)壓(ya)(ya)蓋受彈力(li)。在可能的(de)(de)地(di)方使(shi)用(yong)4個以上螺(luo)釘(ding)的(de)(de)等(deng)間距壓(ya)(ya)蓋,緊(jin)(jin)(jin)固(gu)(gu)壓(ya)(ya)蓋螺(luo)栓(shuan)(shuan)時(shi)(shi),用(yong)塞尺檢查軸與壓(ya)(ya)蓋之(zhi)間的(de)(de)間隙,這在密封(feng)(feng)(feng)腔(qiang)對(dui)壓(ya)(ya)蓋不(bu)導(dao)向(xiang)時(shi)(shi),顯得特別(bie)重要,因為壓(ya)(ya)蓋必須(xu)對(dui)中。