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一(yi)、設(she)備維修方(fang)法存(cun)在(zai)的問題(ti)

1.設備維(wei)修不能正確判(pan)斷分析故(gu)障,盲目大拆大卸的現象司空見慣。

一(yi)些維(wei)修人員(yuan)由(you)于對(dui)(dui)設(she)備(bei)機(ji)(ji)械(xie)結(jie)構、原(yuan)(yuan)理不(bu)清楚,不(bu)認真分析故(gu)(gu)(gu)(gu)(gu)障原(yuan)(yuan)因,不(bu)能準確(que)判(pan)(pan)斷故(gu)(gu)(gu)(gu)(gu)障部(bu)位,憑著“大(da)概(gai)、差不(bu)多”的(de)思想(xiang)盲目(mu)對(dui)(dui)設(she)備(bei)大(da)拆(chai)大(da)卸(xie),結(jie)果不(bu)但原(yuan)(yuan)故(gu)(gu)(gu)(gu)(gu)障未(wei)排(pai)除,而且由(you)于維(wei)修技能和(he)工藝較(jiao)差,又(you)出(chu)現(xian)新的(de)問題。如(ru)某(mou)站曾經(jing)出(chu)現(xian)120KW柴(chai)油(you)發電機(ji)(ji)動力(li)不(bu)足、機(ji)(ji)械(xie)無(wu)法(fa)工作的(de)故(gu)(gu)(gu)(gu)(gu)障。維(wei)修人員(yuan)拆(chai)卸(xie)分解了(le)PT噴油(you)泵(beng)和(he)噴油(you)器也沒有找到(dao)故(gu)(gu)(gu)(gu)(gu)障原(yuan)(yuan)因,更換1個噴油(you)泵(beng)試驗,故(gu)(gu)(gu)(gu)(gu)障依舊(jiu)。較(jiao)后檢(jian)(jian)查故(gu)(gu)(gu)(gu)(gu)障是由(you)于所(suo)用(yong)柴(chai)油(you)內(nei)部(bu)雜質、水分過多引起(qi)。而此次拆(chai)卸(xie)卻導致PT噴油(you)泵(beng)的(de)性能明顯下降(jiang),柴(chai)油(you)發電機(ji)(ji)功率(lv)不(bu)足。因此,當(dang)機(ji)(ji)械(xie)出(chu)現(xian)故(gu)(gu)(gu)(gu)(gu)障后,要通過檢(jian)(jian)測設(she)備(bei)進行檢(jian)(jian)測;如(ru)無(wu)檢(jian)(jian)測設(she)備(bei),可通過“問、看、查、試”等傳統的(de)故(gu)(gu)(gu)(gu)(gu)障判(pan)(pan)斷方法(fa)和(he)手段,結(jie)合(he)設(she)備(bei)的(de)結(jie)構和(he)工作原(yuan)(yuan)理,確(que)定較(jiao)可能發生故(gu)(gu)(gu)(gu)(gu)障的(de)部(bu)位。在判(pan)(pan)定設(she)備(bei)故(gu)(gu)(gu)(gu)(gu)障時,一(yi)般常用(yong)“排(pai)除法(fa)”和(he)“比較(jiao)法(fa)”,按照從簡單到(dao)復雜、先外表后內(nei)部(bu)、先總成(cheng)再部(bu)件的(de)順序進行,切(qie)忌“不(bu)問青紅皂白,盲目(mu)大(da)拆(chai)大(da)卸(xie)”。

2.盲目更換零部件,一(yi)味“換件修理”的現象不同程度地存在。

設備故(gu)(gu)障(zhang)(zhang)的(de)(de)判斷和(he)排(pai)除(chu)相對困難一(yi)(yi)些(xie)(xie),有些(xie)(xie)維(wei)修(xiu)人員一(yi)(yi)貫采用換(huan)件(jian)(jian)(jian)試驗的(de)(de)方(fang)法(fa)(fa),不論(lun)大件(jian)(jian)(jian)小件(jian)(jian)(jian),只要認為可(ke)能是導(dao)致故(gu)(gu)障(zhang)(zhang)的(de)(de)零(ling)部(bu)件(jian)(jian)(jian),一(yi)(yi)個一(yi)(yi)個更(geng)(geng)換(huan)試驗。結果非但故(gu)(gu)障(zhang)(zhang)沒排(pai)除(chu),且(qie)把不該更(geng)(geng)換(huan)的(de)(de)零(ling)部(bu)件(jian)(jian)(jian)隨意更(geng)(geng)換(huan)了,增(zeng)加了維(wei)修(xiu)費。有些(xie)(xie)故(gu)(gu)障(zhang)(zhang)零(ling)部(bu)件(jian)(jian)(jian)完全可(ke)以通過(guo)修(xiu)理(li)恢(hui)復(fu)其技(ji)術性能,如發電機、空壓機、鼓風機、燃(ran)燒器、齒輪(lun)油(you)泵等出現故(gu)(gu)障(zhang)(zhang),不需要復(fu)雜修(xiu)理(li)工藝即(ji)可(ke)修(xiu)復(fu)。在維(wei)修(xiu)時(shi),應根據故(gu)(gu)障(zhang)(zhang)現象認真(zhen)分(fen)析(xi)判斷故(gu)(gu)障(zhang)(zhang)原(yuan)因(yin)及部(bu)位(wei),對能修(xiu)復(fu)的(de)(de)零(ling)部(bu)件(jian)(jian)(jian)要采取修(xiu)理(li)的(de)(de)方(fang)法(fa)(fa)恢(hui)復(fu)技(ji)術性能,杜絕盲目更(geng)(geng)換(huan)零(ling)部(bu)件(jian)(jian)(jian)的(de)(de)做法(fa)(fa)。

3.不(bu)注意(yi)檢測零部件配(pei)合間隙的現象(xiang)為(wei)數不(bu)少(shao)。

常用柴油發(fa)電(dian)機(ji)維修中,活(huo)塞與缸套配(pei)(pei)合(he)間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)、活(huo)塞環“三隙(xi)(xi)(xi)”、活(huo)塞頂隙(xi)(xi)(xi)、氣(qi)門間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)、柱塞余(yu)隙(xi)(xi)(xi)、制動蹄片間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)、主從動齒輪嚙合(he)間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)、軸(zhou)(zhou)承軸(zhou)(zhou)向和徑向間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)、氣(qi)門桿(gan)與氣(qi)門導(dao)管配(pei)(pei)合(he)間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)等,各類機(ji)型都有(you)嚴(yan)格(ge)的(de)要求,在維修時必(bi)須進行(xing)測量,對不(bu)(bu)符合(he)間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)要求的(de)零部件(jian)要進行(xing)調整(zheng)或更換。實(shi)際(ji)維修工(gong)作中,不(bu)(bu)測量配(pei)(pei)合(he)間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)而盲目裝配(pei)(pei)零部件(jian)的(de)現象為數不(bu)(bu)少(shao),導(dao)致軸(zhou)(zhou)承早(zao)期磨損或燒蝕、柴油發(fa)電(dian)機(ji)燒機(ji)油、起(qi)動困難或爆(bao)燃(ran)、活(huo)塞環折斷、機(ji)件(jian)撞擊、漏油、漏氣(qi)等故障。有(you)時甚(shen)至會(hui)因零部件(jian)配(pei)(pei)合(he)間(jian)(jian)(jian)(jian)隙(xi)(xi)(xi)不(bu)(bu)當(dang),導(dao)致機(ji)械嚴(yan)重損壞事故的(de)發(fa)生(sheng)。

4.設備裝(zhuang)配時零部件裝(zhuang)反(fan)的(de)情況時有發生。

在(zai)(zai)維(wei)修設(she)備(bei)時,一些(xie)零部(bu)(bu)件裝(zhuang)(zhuang)配(pei)有著(zhu)嚴格的(de)方向(xiang)要(yao)(yao)求;只有正(zheng)(zheng)(zheng)確安(an)(an)(an)裝(zhuang)(zhuang),才(cai)能保證零部(bu)(bu)件正(zheng)(zheng)(zheng)常(chang)工(gong)作。有些(xie)零部(bu)(bu)件外部(bu)(bu)特征不(bu)明顯,正(zheng)(zheng)(zheng)反都可以安(an)(an)(an)裝(zhuang)(zhuang),在(zai)(zai)實際工(gong)作中時常(chang)出現裝(zhuang)(zhuang)反的(de)情(qing)況(kuang),導(dao)致零件早期(qi)損壞、機械不(bu)能正(zheng)(zheng)(zheng)常(chang)工(gong)作、設(she)備(bei)損壞事故(gu)等。如(ru)發動(dong)機氣缸襯墊、不(bu)等距(ju)氣門彈簧、發動(dong)機活(huo)塞、活(huo)塞環、風扇葉片(pian)、齒輪油泵側(ce)板、骨架油封、止推墊圈(quan)、止推 軸承(cheng)、止推墊片(pian)、擋油圈(quan)、噴油泵柱塞、離(li)合器摩(mo)擦片(pian)盤轂、傳動(dong)軸萬向(xiang)節(jie)等零部(bu)(bu)件在(zai)(zai)安(an)(an)(an)裝(zhuang)(zhuang)時,如(ru)不(bu)了解(jie)結構(gou)及安(an)(an)(an)裝(zhuang)(zhuang)注意事項,較(jiao)易(yi)裝(zhuang)(zhuang)反。致使裝(zhuang)(zhuang)配(pei)后工(gong)作不(bu)正(zheng)(zheng)(zheng)常(chang),導(dao)致設(she)備(bei)故(gu)障的(de)發生。因此,維(wei)修人員在(zai)(zai)裝(zhuang)(zhuang)配(pei)零部(bu)(bu)件時,一定(ding)要(yao)(yao)掌握零部(bu)(bu)件的(de)結構(gou)及安(an)(an)(an)裝(zhuang)(zhuang)方向(xiang)要(yao)(yao)求,不(bu)可想當然(ran)盲目(mu)安(an)(an)(an)裝(zhuang)(zhuang)。

5.維修方(fang)法不正規,“治標(biao)不治本”仍是(shi)一些維修單位的習慣(guan)。

在維(wei)修(xiu)(xiu)設備時,一些維(wei)修(xiu)(xiu)人員不(bu)采(cai)(cai)(cai)取正確的(de)(de)(de)維(wei)修(xiu)(xiu)方法,認為(wei)應(ying)急(ji)措(cuo)施是萬能的(de)(de)(de),以(yi)“應(ying)急(ji)”代“維(wei)修(xiu)(xiu)”,“治(zhi)標不(bu)治(zhi)本”的(de)(de)(de)現象還很多。如經常(chang)遇到的(de)(de)(de)“以(yi)焊代修(xiu)(xiu)”,就是一例。一些部件本可(ke)進(jin)行修(xiu)(xiu)理,但有(you)些維(wei)修(xiu)(xiu)人員圖省事,卻常(chang)采(cai)(cai)(cai)用“焊死”的(de)(de)(de)方法;為(wei)了使柴油(you)(you)發電機“有(you)勁”,人為(wei)調(diao)大噴油(you)(you)泵的(de)(de)(de)供油(you)(you)量和調(diao)高噴油(you)(you)器噴油(you)(you)壓(ya)力。這些不(bu)正規(gui)的(de)(de)(de)維(wei)修(xiu)(xiu)方法只能應(ying)急(ji),卻不(bu)可(ke)長期(qi)使用,必(bi)須從根本上(shang)查出故(gu)障原因,采(cai)(cai)(cai)取正規(gui)的(de)(de)(de)維(wei)修(xiu)(xiu)方法排(pai)除故(gu)障,應(ying)引(yin)起維(wei)修(xiu)(xiu)人員的(de)(de)(de)注意。


二、設(she)備維修(xiu)材料、配件中存在的問(wen)題

1.不檢查新(xin)件質量,裝(zhuang)配后出現故障的問題(ti)比較常見。

在更換配(pei)(pei)件(jian)前,有(you)些維修人員對新配(pei)(pei)件(jian)不(bu)(bu)做技術檢(jian)(jian)查,拿(na)來后直接(jie)安裝(zhuang)到設備上,這種做法是不(bu)(bu)科學的(de)。目前市場上出售的(de)零(ling)配(pei)(pei)件(jian)質量良莠不(bu)(bu)均,一(yi)些假冒偽劣配(pei)(pei)件(jian)魚目混(hun)珠;還(huan)有(you)一(yi)些配(pei)(pei)件(jian)由于庫存(cun)時間(jian)過長,性(xing)能發(fa)生(sheng)變化,如不(bu)(bu)經檢(jian)(jian)測(ce) ,裝(zhuang)配(pei)(pei)后常常引起(qi)故(gu)障的(de)發(fa)生(sheng)。因此,在更換新配(pei)(pei)件(jian)前一(yi)定要(yao)進行(xing)必(bi)要(yao)的(de)檢(jian)(jian)查測(ce)試(shi)。檢(jian)(jian)測(ce)包(bao)括(kuo)外觀及(ji)性(xing)能測(ce)試(shi),確保(bao)新配(pei)(pei)件(jian)無故(gu)障,杜絕其引起(qi)的(de)不(bu)(bu)必(bi)要(yao)麻煩(fan)。

2.不(bu)(bu)(bu)(bu)(bu)注意配(pei)件(jian)型號(hao),配(pei)件(jian)代(dai)(dai)用(yong)(yong)或(huo)錯(cuo)用(yong)(yong)的(de)(de)(de)現象(xiang)(xiang)較普遍(bian)(bian)。在維修(xiu)設(she)備(bei)時(shi)(shi),配(pei)件(jian)代(dai)(dai)用(yong)(yong)或(huo)錯(cuo)用(yong)(yong)的(de)(de)(de)現象(xiang)(xiang)仍然較普遍(bian)(bian)。有(you)(you)些(xie)配(pei)件(jian)應(ying)(ying)急代(dai)(dai)用(yong)(yong)是可(ke)行(xing)(xing)的(de)(de)(de),但(dan)長時(shi)(shi)間使(shi)用(yong)(yong)卻有(you)(you)害無益,影響設(she)備(bei)的(de)(de)(de)安(an)全(quan)和(he)技(ji)術(shu)性能(neng)(neng)(neng)。有(you)(you)些(xie)維修(xiu)人員對(dui)機(ji)(ji)械(xie)結構、原理(li)了(le)解較少(shao),很(hen)多(duo)零配(pei)件(jian)型號(hao)不(bu)(bu)(bu)(bu)(bu)符,但(dan)卻認(ren)為只要能(neng)(neng)(neng)裝上(shang)就行(xing)(xing),不(bu)(bu)(bu)(bu)(bu)考慮能(neng)(neng)(neng)否發(fa)揮機(ji)(ji)械(xie)的(de)(de)(de)技(ji)術(shu)性能(neng)(neng)(neng);用(yong)(yong)殘(can)次(ci)品代(dai)(dai)替合(he)格品,用(yong)(yong)鐵絲、鐵釘代(dai)(dai)替開口銷,用(yong)(yong)鋼筋、IEt螺栓代(dai)(dai)替圓柱銷等(deng),質(zhi)量無法(fa)保證,長期使(shi)用(yong)(yong)是絕(jue)不(bu)(bu)(bu)(bu)(bu)允許的(de)(de)(de)。因此(ci)在維修(xiu)設(she)備(bei)時(shi)(shi),應(ying)(ying)盡量使(shi)用(yong)(yong)原裝型號(hao)的(de)(de)(de)配(pei)件(jian),不(bu)(bu)(bu)(bu)(bu)可(ke)用(yong)(yong)其它型號(hao)配(pei)件(jian)代(dai)(dai)用(yong)(yong),更(geng)不(bu)(bu)(bu)(bu)(bu)能(neng)(neng)(neng)錯(cuo)用(yong)(yong);不(bu)(bu)(bu)(bu)(bu)成(cheng)(cheng)(cheng)(cheng)對(dui)、成(cheng)(cheng)(cheng)(cheng)套(tao)更(geng)換(huan)(huan)組件(jian)的(de)(de)(de)情況也不(bu)(bu)(bu)(bu)(bu)少(shao)見。設(she)備(bei)上(shang)有(you)(you)很(hen)多(duo)組件(jian),如(ru)柴油(you)(you)發(fa)電機(ji)(ji)燃(ran)油(you)(you)系統的(de)(de)(de)柱塞副、出油(you)(you)閥(fa)副、噴油(you)(you)嘴針閥(fa)組件(jian),這些(xie)配(pei)合(he)組件(jian)在工廠制造時(shi)(shi)經過(guo)特殊(shu)加工,成(cheng)(cheng)(cheng)(cheng)對(dui)研磨(mo)而成(cheng)(cheng)(cheng)(cheng),配(pei)合(he)十分(fen)精密,在使(shi)用(yong)(yong)的(de)(de)(de)壽命期內始終(zhong)成(cheng)(cheng)(cheng)(cheng)對(dui)使(shi)用(yong)(yong),切不(bu)(bu)(bu)(bu)(bu)可(ke)互(hu)(hu)換(huan)(huan)。一(yi)些(xie)相互(hu)(hu)配(pei)合(he)組件(jian),如(ru)活塞與(yu)缸套(tao)、軸瓦與(yu)軸頸等(deng),經過(guo)一(yi)段時(shi)(shi)間的(de)(de)(de)磨(mo)合(he)使(shi)用(yong)(yong),相對(dui)配(pei)合(he)較好,在維修(xiu)時(shi)(shi),也應(ying)(ying)注意成(cheng)(cheng)(cheng)(cheng)對(dui)裝配(pei),不(bu)(bu)(bu)(bu)(bu)要弄(nong)串(chuan)。這些(xie)一(yi)臺機(ji)(ji)械(xie)同(tong)時(shi)(shi)使(shi)用(yong)(yong)一(yi)套(tao)的(de)(de)(de)配(pei)件(jian),發(fa)生損(sun)壞一(yi)定要成(cheng)(cheng)(cheng)(cheng)套(tao)更(geng)換(huan)(huan),否則由于配(pei)件(jian)質(zhi)量差(cha)別大、新舊程度不(bu)(bu)(bu)(bu)(bu)同(tong)、長短尺寸不(bu)(bu)(bu)(bu)(bu)一(yi),會導致設(she)備(bei)運轉不(bu)(bu)(bu)(bu)(bu)穩、更(geng)換(huan)(huan)的(de)(de)(de)配(pei)件(jian)易早期損(sun)壞等(deng)。實(shi)際維修(xiu)工作中,有(you)(you)人為了(le)減少(shao)開支、有(you)(you)人不(bu)(bu)(bu)(bu)(bu)了(le)解技(ji)術(shu)要求,不(bu)(bu)(bu)(bu)(bu)成(cheng)(cheng)(cheng)(cheng)對(dui)或(huo)成(cheng)(cheng)(cheng)(cheng)套(tao)更(geng)換(huan)(huan)上(shang)述零部件(jian)的(de)(de)(de)情況還不(bu)(bu)(bu)(bu)(bu)少(shao)見,降低(di)了(le)設(she)備(bei)的(de)(de)(de)維修(xiu)質(zhi)量,縮短了(le)機(ji)(ji)件(jian)壽命,增(zeng)加了(le)故障(zhang)發(fa)生的(de)(de)(de)可(ke)能(neng)(neng)(neng)性,應(ying)(ying)引起足夠的(de)(de)(de)重視。

3.墊(dian)(dian)(dian)片(pian)(pian)使用(yong)(yong)(yong)(yong)(yong)(yong)不規(gui)(gui)范,隨意(yi)使用(yong)(yong)(yong)(yong)(yong)(yong)的現象仍然存在。設備(bei)零部件配(pei)合(he)(he)(he)面(mian)間(jian)使用(yong)(yong)(yong)(yong)(yong)(yong)的墊(dian)(dian)(dian)片(pian)(pian)種(zhong)類(lei)很多,常用(yong)(yong)(yong)(yong)(yong)(yong)的有石棉墊(dian)(dian)(dian)、橡膠(jiao)墊(dian)(dian)(dian)、紙板墊(dian)(dian)(dian)、軟木墊(dian)(dian)(dian)、毛氈墊(dian)(dian)(dian)、有色(se)金(jin)屬(shu)墊(dian)(dian)(dian)(銅墊(dian)(dian)(dian)、鋁墊(dian)(dian)(dian))、銅皮(鋼(gang)皮)石棉墊(dian)(dian)(dian)、絕(jue)緣墊(dian)(dian)(dian)、彈簧(huang)墊(dian)(dian)(dian)、平(ping)墊(dian)(dian)(dian)等(deng)。一(yi)些用(yong)(yong)(yong)(yong)(yong)(yong)來(lai)防(fang)(fang)止零部件配(pei)合(he)(he)(he)面(mian)間(jian)漏(lou)(lou)油、漏(lou)(lou)水、漏(lou)(lou)氣(qi)、漏(lou)(lou)電(dian),一(yi)些起(qi)緊固防(fang)(fang)松(song)作用(yong)(yong)(yong)(yong)(yong)(yong)。每一(yi)類(lei)墊(dian)(dian)(dian)片(pian)(pian)使用(yong)(yong)(yong)(yong)(yong)(yong)的時(shi)機和(he)場合(he)(he)(he)有不同的規(gui)(gui)定和(he)要求,在維(wei)修(xiu)設備(bei)時(shi),墊(dian)(dian)(dian)片(pian)(pian)使用(yong)(yong)(yong)(yong)(yong)(yong)不規(gui)(gui)范甚(shen)至亂用(yong)(yong)(yong)(yong)(yong)(yong)的現象還比較嚴重(zhong),導致配(pei)合(he)(he)(he)面(mian)間(jian)經常發生泄漏(lou)(lou),螺栓、螺母 自行松(song)動、松(song)脫,影響設備(bei)的正(zheng)常使用(yong)(yong)(yong)(yong)(yong)(yong)。如(ru)發電(dian)機氣(qi)缸墊(dian)(dian)(dian)過厚,導致壓(ya)縮比降低,發動機起(qi)動困難(nan);噴油器與(yu)氣(qi)缸蓋配(pei)合(he)(he)(he)面(mian)間(jian)應使用(yong)(yong)(yong)(yong)(yong)(yong)銅墊(dian)(dian)(dian)片(pian)(pian),如(ru)用(yong)(yong)(yong)(yong)(yong)(yong)石棉墊(dian)(dian)(dian)代替,易使噴油器散熱不良發生燒(shao)蝕。所以維(wei)修(xiu)人員維(wei)修(xiu)設備(bei)時(shi),切(qie)記“墊(dian)(dian)(dian)片(pian)(pian)雖小用(yong)(yong)(yong)(yong)(yong)(yong)處(chu)大”。

產品圖片

三(san)、設備維修(xiu)質量方面存(cun)在的問(wen)題

1.“小件”好壞不(bu)重視,因(yin)“小”失“大(da)”導(dao)致故障增加(jia)。

在設(she)備(bei)(bei)維修作業(ye)時(shi),一(yi)些維修人員往(wang)(wang)往(wang)(wang)只重(zhong)視泵(beng)、燃油(you)泵(beng)等(deng)部(bu)件(jian)的(de)維護,卻忽視了對各類儀表等(deng)“小(xiao)(xiao)件(jian)”的(de)保(bao)養。他們認為這些“小(xiao)(xiao)件(jian)”不(bu)影響機(ji)械的(de)工作,即使(shi)損壞也無關緊(jin)要,只要機(ji)械能(neng)動(dong)就(jiu)湊合著用。孰不(bu)知正是這些“小(xiao)(xiao)件(jian)”缺乏維護,導致機(ji)械發(fa)生(sheng)早期磨損,縮短(duan)使(shi)用壽命。如設(she)備(bei)(bei)使(shi)用的(de)機(ji)油(you)濾清(qing)器(qi)、空氣濾清(qing)器(qi)、液壓油(you)濾清(qing)器(qi)、水溫表、油(you)溫表、油(you)壓表、傳感器(qi)、報警器(qi)、濾網、黃油(you)嘴、回油(you)接頭、開(kai)口(kou)銷(xiao)、風(feng)扇導風(feng)罩、傳動(dong)軸(zhou)螺栓鎖片等(deng),所以“小(xiao)(xiao)件(jian)”是設(she)備(bei)(bei)正常工作及維護保(bao)養必不(bu)可少的(de),對延長機(ji)械的(de)使(shi)用壽命至關重(zhong)要,如不(bu)注意(yi)維護保(bao)養,常會“因小(xiao)(xiao)失大”,導致設(she)備(bei)(bei)故障的(de)發(fa)生(sheng)。

2.維修禁忌忘(wang)腦后,隱性故障頻繁出。

維(wei)修(xiu)(xiu)設備時(shi)(shi),有些維(wei)修(xiu)(xiu)人員(yuan)不(bu)(bu)(bu)了解(jie)維(wei)修(xiu)(xiu)中應注意的(de)(de)(de)一些問(wen)題,導(dao)(dao)致(zhi)拆裝中經常(chang)出現“習(xi)慣性(xing)”的(de)(de)(de)錯誤(wu),影(ying)響(xiang)機械(xie)的(de)(de)(de)維(wei)修(xiu)(xiu)質(zhi)(zhi)量。如安裝活塞(sai)銷(xiao)時(shi)(shi),不(bu)(bu)(bu)加熱活塞(sai)而(er)直接把活塞(sai)銷(xiao)打入(ru)銷(xiao)孔內,導(dao)(dao)致(zhi)活塞(sai)變形(xing)量增大,橢(tuo)圓(yuan)度增加:維(wei)修(xiu)(xiu)柴(chai)油(you)(you)發電機時(shi)(shi)過量刮(gua)削軸(zhou)(zhou)瓦(wa),軸(zhou)(zhou)瓦(wa)表(biao)面(mian)的(de)(de)(de)減摩(mo)合金(jin)層被刮(gua)掉,導(dao)(dao)致(zhi)軸(zhou)(zhou)瓦(wa)鋼背與(yu)曲(qu)軸(zhou)(zhou)直接摩(mo)擦發生(sheng)早期磨損;拆卸軸(zhou)(zhou)承(cheng)、皮帶(dai)輪(lun)等過盈配合零(ling)部(bu)件(jian)(jian)時(shi)(shi)不(bu)(bu)(bu)使(shi)用(yong)(yong)拉力器(qi),硬打硬敲(qiao),易導(dao)(dao)致(zhi)零(ling)部(bu)件(jian)(jian)變形(xing)或損壞;啟封新活塞(sai)、缸套、噴油(you)(you)嘴組件(jian)(jian)、柱塞(sai)組件(jian)(jian)等零(ling)件(jian)(jian)時(shi)(shi),用(yong)(yong)火(huo)燒零(ling)件(jian)(jian)表(biao)面(mian)封存的(de)(de)(de)油(you)(you)質(zhi)(zhi)或臘質(zhi)(zhi),使(shi)零(ling)件(jian)(jian)性(xing)能發生(sheng)變化,不(bu)(bu)(bu)利于零(ling)件(jian)(jian)的(de)(de)(de)使(shi)用(yong)(yong)。


靜音柴油發電機

3.零件除污、清洗不徹底,早損、腐蝕常發(fa)生(sheng)。

維(wei)修設備時(shi),正確(que)清除零部件表面(mian)的油污(wu)、雜(za)質(zhi)對(dui)提高修理質(zhi)量,延長機械使用壽命有著重要意義。不注意加強(qiang)零件的清洗(xi)(xi)、清洗(xi)(xi)劑選用不合理、清洗(xi)(xi)方法(fa)不當(dang)等,會導致零部件早期磨損(sun)、腐蝕(shi)性損(sun)壞現(xian)象發生。如(ru)不徹底(di)清除螺栓孔內雜(za)物(wu)、液壓(ya)元件內砂粒,導致螺栓

//redultras.net