1、盡量減少有害因素的影響
(1)減少機械雜質的影響
機械雜質一般指的是灰塵、土壤等非金屬物質和工程機械在使用過程中自身產生的一些金屬屑、磨mo損sun產chan物wu等deng。這zhe些xie雜za質zhi一yi旦dan進jin入ru機ji械xie內nei部bu,到dao達da機ji械xie的de配pei合he表biao麵mian之zhi間jian,其qi危wei害hai是shi很hen大da的de,不bu但dan使shi相xiang對dui運yun動dong出chu來lai阻zu滯zhi,加jia速su零ling件jian的de磨mo損sun,而er且qie會hui擦ca傷shang配pei合he表biao麵mian,破po壞huai潤run滑hua油you膜mo,使shi零ling件jian溫wen度du升sheng高gao、潤滑油變質。
據測定,潤滑中機械雜質增加到0.15%時,發動機第一道活塞環的磨損速度將比正常值大2.5倍;滾動軸隨進入雜質微粒時,其壽命將降低80%-90%。因此,對於工作在環境惡劣、條件複雜場所的工程機械來說,一要使用優質、配套的零部件及潤滑油、潤滑脂,堵住有害雜質的源頭;eryaozuohaogongzuoxianchangdejixiefanghugongzuo,baozhengxiangyingjigounengzhengchanggongzuo,fangzhigezhongzazhijinrujixieneibu。duichuxianguzhangdejixie,jinliangdaozhengguidexiulichangsuojinxingxiuli。xianchangxiulishi,yeyaozuohaofanghucuoshi,fangzhixianchangxiulishigenghuandelingbujianzaijinrujixieqianshoudaohuichendengzazhidewuran。
(2)減少溫度的影響
在工作中,各個零部件的溫度都有各自的正常範圍。如一般冷卻水的溫度為80-90℃,液壓傳動係統液壓油的溫度為30-60℃,低於或超過此範圍就會加速零件的磨損,引起潤滑油變質,造成材料性能變化等等。試驗表明,各種工程機械的主傳動齒輪和軸承在-5℃的潤滑油中運轉比在3℃的潤滑油中運轉,磨損要增大10-12倍。但當溫度過高時,又會加速潤滑油的變質,如機油溫度超過55-60℃時,油溫每升高5℃,jiyoudeyanghuasudujiangtigaoyibei。weici,gongchengjixiezaishiyongguochengzhong,yiyaofangzhidiwenxiajinxingchaofuheyunzhuan,baozhengdisuyuwenjieduandezhengchangyunxing,shijixiedadaoguidingwenduhouzaijinxingxingshihuogongzuo,buyaoyinweidangshibuchuxianwentierhushiqizhongyaozuoyong;二er要yao防fang止zhi機ji械xie在zai高gao溫wen下xia運yun轉zhuan,機ji械xie運yun行xing過guo程cheng中zhong要yao經jing常chang檢jian查zha各ge種zhong溫wen度du表biao上shang的de數shu值zhi,發fa現xian問wen題ti立li即ji停ting機ji進jin行xing檢jian查zha,發fa現xian故gu障zhang及ji時shi排pai除chu。對dui於yu一yi時shi找zhao不bu到dao原yuan因yin的de,絕jue不bu能neng不bu經jing處chu理li而er仍reng使shi機ji械xie帶dai病bing工gong作zuo。在zai平ping時shi的de工gong作zuo中zhong,要yao注zhu意yi檢jian查zha冷leng卻que係xi統tong的de工gong作zuo狀zhuang況kuang。對dui水shui冷leng式shi機ji械xie,每mei日ri工gong作zuo前qian必bi須xu檢jian查zha,加jia添tian冷leng卻que水shui;對風冷式機械,也要定期清理風冷係統上的灰塵,保證散熱風道暢通。
(3)減少各種腐蝕作用
jinshubiaomianyuzhouweijiezhifashenghuaxuehuodianhuaxuezuoyongerzaoshoupohuaidexianxiangchengfushi。zhezhongfushizuoyongbudanhuiyingxiangjixiewaibiaoshebeidezhengchanggongzuo,erqiehuifushidaojixieneibudelingbujian。ruyushui、空氣中的化學物質等通過機械零部件的對外通道、縫隙等進入機械內部,腐蝕機械零件內部,加速機械磨損,增加機械故障。由於這種腐蝕作用有時是看不見、摸不著的,容易衩人忽視,因而其危害性更大。在使用中,管理和操作人員要根據當時當地天氣情況、空氣汙染情況,采取有效的措施,減小化學腐蝕對機械的影響,重點是防止雨水及空氣中化學成分對機械的侵入。
2、保證正常的工作載荷
工gong程cheng機ji械xie工gong作zuo載zai荷he的de大da小xiao和he性xing質zhi對dui機ji械xie的de損sun耗hao過guo程cheng有you著zhe重zhong要yao的de影ying響xiang。一yi般ban來lai說shuo,零ling件jian的de磨mo損sun隨sui負fu荷he的de增zeng加jia而er成cheng比bi例li地di增zeng加jia。當dang零ling件jian承cheng受shou的de載zai荷he高gao於yu平ping均jun設she計ji載zai荷he時shi,其qi磨mo損sun將jiang會hui加jia劇ju。另ling外wai,在zai其qi他ta條tiao件jian相xiang同tong時shi,穩wen定ding的de載zai荷he比bi動dong載zai荷he下xia磨mo損sun要yao小xiao,故gu障zhang少shao,壽shou命ming低di。試shi驗yan表biao明ming,發fa動dong機ji在zai不bu穩wen定ding載zai荷he下xia工gong作zuo與yu穩wen定ding載zai荷he下xia工gong作zuo比bi較jiao,其qi氣qi缸gang的de磨mo損sun將jiang增zeng大da2倍(bei)。在(zai)正(zheng)常(chang)負(fu)荷(he)下(xia)工(gong)作(zuo)的(de)發(fa)動(dong)機(ji),其(qi)故(gu)障(zhang)發(fa)生(sheng)率(lv)較(jiao)低(di),且(qie)壽(shou)命(ming)延(yan)長(chang)。相(xiang)反(fan),超(chao)負(fu)荷(he)運(yun)轉(zhuan)的(de)發(fa)動(dong)機(ji),故(gu)障(zhang)發(fa)生(sheng)率(lv)明(ming)顯(xian)增(zeng)多(duo),壽(shou)命(ming)也(ye)會(hui)比(bi)設(she)計(ji)指(zhi)標(biao)減(jian)少(shao)。經(jing)常(chang)處(chu)於(yu)大(da)範(fan)圍(wei)負(fu)荷(he)變(bian)動(dong)的(de)機(ji)械(xie)磨(mo)損(sun)量(liang)大(da)於(yu)連(lian)續(xu)穩(wen)定(ding)工(gong)作(zuo)的(de)機(ji)械(xie)。一(yi)般(ban)情(qing)況(kuang)下(xia),發(fa)電(dian)機(ji)使(shi)用(yong)的(de)發(fa)動(dong)機(ji)要(yao)比(bi)推(tui)土(tu)機(ji)、挖掘機等使用的發動機壽命要長。
保bao證zheng正zheng常chang的de工gong作zuo載zai荷he主zhu要yao取qu決jue於yu操cao作zuo手shou對dui工gong程cheng機ji械xie的de使shi用yong。一yi要yao注zhu意yi不bu能neng在zai超chao過guo機ji械xie所suo能neng承cheng受shou的de最zui大da負fu荷he下xia進jin行xing工gong作zuo,要yao在zai力li所suo能neng及ji的de情qing況kuang下xia使shi用yong機ji械xie。作zuo為wei工gong程cheng機ji械xie管guan理li人ren員yuan,在zai指zhi定ding操cao作zuo人ren員yuan時shi,要yao把ba工gong程cheng機ji械xie隨sui機ji資zi料liao及ji操cao作zuo手shou冊ce等deng交jiao給gei操cao作zuo手shou,使shi其qi能neng正zheng常chang在zai掌zhang握wo機ji械xie性xing能neng及ji操cao作zuo規gui程cheng,而er不bu應ying隨sui意yi把ba有you關guan資zi料liao扣kou下xia來lai。二er要yao盡jin量liang保bao證zheng機ji械xie負fu荷he的de均jun勻yun加jia減jian,使shi機ji械xie處chu於yu較jiao為wei平ping緩huan的de負fu荷he變bian動dong,具ju體ti地di說shuo,就jiu是shi要yao較jiao為wei均jun勻yun地di加jia減jian油you門men,防fang止zhi發fa動dong機ji、工作裝置動作的大起大落。
3、保證對機械的合理潤滑
零件工作麵的磨員、零件表麵的腐蝕和材料的老化是正常使用條件下的機械零部件的3zhongzhuyaohuanxiaoxingshi,erlingjiangongzuomiandemosunsuoyinqideshixiaosuozhandebilizuida。yejiushishuo,jixiedemosunshishiqigezhonglingbujianzouxiangjixianjishuzhuangtaidezhuyaoyuanyinzhiyi。name,jiejuejixielingbujiandemosunwenti。chulecaiyongyouliangdecailiao、選擇先進的製造工藝、shejihelidejixiejiegouwai,zaishiyongguochengzhongyaozuodeyixiangzhongyaogongzuojiushibaozhengduijixiedehelirunhua。jutongji,gongchengjixiedeguzhangyouyibanyishangshiyourunhuabuliangyinqide。
由you於yu工gong程cheng機ji械xie各ge零ling部bu件jian配pei合he的de精jing密mi性xing,良liang好hao的de潤run滑hua可ke以yi使shi其qi保bao持chi正zheng常chang的de工gong作zuo間jian隙xi和he合he適shi的de工gong作zuo溫wen度du,從cong而er降jiang低di零ling件jian的de磨mo損sun程cheng度du,減jian少shao機ji械xie故gu障zhang。正zheng常chang合he理li的de潤run滑hua是shi減jian少shao機ji械xie故gu障zhang的de有you效xiao措cuo施shi之zhi一yi。為wei此ci,一yi是shi要yao合he理li選xuan用yong潤run滑hua劑ji,要yao根gen據ju機ji械xie的de種zhong類lei和he應ying用yong結jie構gou的de不bu同tong選xuan用yong正zheng常chang的de潤run滑hua劑ji類lei別bie,根gen據ju機ji械xie的de要yao求qiu選xuan用yong合he適shi的de質zhi量liang等deng組zu,根gen據ju機ji械xie的de要yao求qiu選xuan用yong合he適shi的de質zhi量liang等deng級ji,根gen據ju機ji械xie的de工gong作zuo環huan境jing和he不bu同tong的de季ji節jie選xuan擇ze合he適shi的de潤run滑hua劑ji牌pai號hao。使shi用yong中zhong,既ji不bu可ke使shi用yong低di等deng級ji的de潤run滑hua劑ji,也ye不bu可ke用yong其qi他ta種zhong類lei的de潤run滑hua劑ji代dai替ti,更geng不bu可ke使shi用yong劣lie質zhi產chan品pin。二er是shi要yao經jing常chang檢jian查zha潤run滑hua劑ji的de數shu量liang和he質zhi量liang。數shu量liang不bu足zu要yao及ji時shi補bu充chong,質zhi量liang不bu佳jia要yao及ji時shi更geng換huan。應ying急ji條tiao件jian下xia使shi用yong不bu同tong種zhong類lei及ji牌pai號hao潤run滑hua劑ji代dai用yong者zhe,事shi後hou一yi定ding對dui潤run滑hua係xi統tong進jin行xing清qing洗xi並bing及ji時shi地di更geng換huan正zheng常chang的de潤run滑hua劑ji。
4、適時維修
jixiezaishiyongguochengzhongbiranhuichuxiangezhonggeyangdeguzhang。zaizhexieguzhangzhong,youxieguzhangduijixieshebeideyingxiangkenengshihenweixiaode,youxieshibijiaoyanzhongde,shenzhihuizaochengjihuirenwangdedashigu。jingyanbiaoming,yanzhongjixieguzhangwangwangshiyouyixiejiaoxiaodeguzhangyinfade。jiuqiyuanyin,jiuzaiyuhushileduixiaoguzhangdejishichuzhi。yinci,duiyujixieguzhang,wulundaxiaodouyingjishidijinxingpaichu,zheyangcainengbaochijixiedezhengchangxingneng,jianshaoyinfagengdaguzhangdekenengxing。
從(cong)某(mou)種(zhong)意(yi)義(yi)上(shang)來(lai)說(shuo),對(dui)出(chu)現(xian)的(de)故(gu)障(zhang)及(ji)時(shi)進(jin)行(xing)處(chu)理(li),就(jiu)是(shi)減(jian)少(shao)和(he)防(fang)止(zhi)故(gu)障(zhang)的(de)一(yi)種(zhong)有(you)效(xiao)措(cuo)施(shi)。所(suo)謂(wei)適(shi)時(shi)進(jin)行(xing)處(chu)理(li)一(yi)是(shi)要(yao)按(an)照(zhao)維(wei)修(xiu)保(bao)養(yang)規(gui)程(cheng),對(dui)機(ji)械(xie)進(jin)行(xing)定(ding)期(qi)的(de)保(bao)養(yang)與(yu)修(xiu)理(li),各(ge)種(zhong)等(deng)組(zu)的(de)保(bao)養(yang)與(yu)修(xiu)理(li)必(bi)須(xu)按(an)要(yao)求(qiu)進(jin)行(xing)。現(xian)有(you)的(de)各(ge)種(zhong)保(bao)養(yang)與(yu)修(xiu)理(li)規(gui)格(ge)是(shi)多(duo)年(nian)實(shi)踐(jian)經(jing)驗(yan)的(de)總(zong)結(jie),是(shi)有(you)其(qi)科(ke)學(xue)性(xing)與(yu)合(he)理(li)性(xing)的(de),在(zai)沒(mei)有(you)重(zhong)大(da)的(de)技(ji)術(shu)進(jin)步(bu)與(yu)革(ge)新(xin)的(de)情(qing)況(kuang)下(xia),這(zhe)些(xie)規(gui)程(cheng)對(dui)工(gong)程(cheng)機(ji)械(xie)維(wei)修(xiu)與(yu)保(bao)養(yang)的(de)指(zhi)導(dao)是(shi)絕(jue)對(dui)性(xing)的(de),必(bi)須(xu)遵(zun)照(zhao)執(zhi)行(xing)。二(er)是(shi)在(zai)使(shi)用(yong)過(guo)程(cheng)中(zhong)要(yao)加(jia)強(qiang)對(dui)工(gong)程(cheng)機(ji)械(xie)的(de)定(ding)期(qi)與(yu)不(bu)定(ding)期(qi)檢(jian)查(zha),及(ji)時(shi)了(le)解(jie)機(ji)械(xie)的(de)運(yun)行(xing)情(qing)況(kuang),對(dui)臨(lin)時(shi)出(chu)現(xian)的(de)故(gu)障(zhang),要(yao)及(ji)時(shi)進(jin)行(xing)處(chu)理(li),不(bu)要(yao)因(yin)故(gu)障(zhang)小(xiao)、不影響使用而延誤維修時機,釀成更大故障。
5、采取正確的技術措施和組織管理措施
隨著材料科學及設計製造技術的發展,工程機械上采用了許多新技術、新材料、新結構,要求機械的技術保障與管理工作更科學、更完善。
為此作為工程機械的組織管理人員及操作人員,一要注意保證機械在運輸及保管過程中防止機械的損傷、變形、腐蝕等。
eryaoyangejixiederichangweihugongzuo,shijixiechuyulianghaodejishuzhuangtai。sanshiyaojiaoyucaozuorenyuanzhengquedeshiyonghecaozuogezhonggongchengjixie,jianshaohefangzhirenweishiwuyinqidejixieguzhang。siyaojingxinbaoyangjixie,yaozuodaozhengquehelidijinxingdingqiyubudingqibaoyang,baochijixiedeqingjie、幹淨,定期檢查機械的技術狀態,發現異常及時處理,對於鬆動和失調的零部件及時緊固和調整,對一些易損件進行預防性的更換等。
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