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、mosunchanwudeng。zhexiezazhiyidanjinrujixieneibu,daodajixiedepeihebiaomianzhijian,qiweihaishihendade,budanshixiangduiyundongchulaizuzhi,jiasulingjiandemosun,erqiehuicashangpeihebiaomian,pohuairunhuayoumo,shilingjianwendushenggao、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
金jin屬shu表biao麵mian與yu周zhou圍wei介jie質zhi發fa生sheng化hua學xue或huo電dian化hua學xue作zuo用yong而er遭zao受shou破po壞huai的de現xian象xiang稱cheng腐fu蝕shi。這zhe種zhong腐fu蝕shi作zuo用yong不bu但dan會hui影ying響xiang機ji械xie外wai表biao設she備bei的de正zheng常chang工gong作zuo,而er且qie會hui腐fu蝕shi到dao機ji械xie內nei部bu的de零ling部bu件jian。如ru雨yu水shui、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。
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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da2bei。zaizhengchangfuhexiagongzuodefadongji,qiguzhangfashenglvjiaodi,qieshoumingyanchang。xiangfan,chaofuheyunzhuandefadongji,guzhangfashenglvmingxianzengduo,shoumingyehuibishejizhibiaojianshao。jingchangchuyudafanweifuhebiandongdejixiemosunliangdayulianxuwendinggongzuodejixie。yibanqingkuangxia,fadianjishiyongdefadongjiyaobituituji、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3種zhong主zhu要yao換huan效xiao形xing式shi,而er零ling件jian工gong作zuo麵mian的de磨mo損sun所suo引yin起qi的de失shi效xiao所suo占zhan的de比bi例li最zui大da。也ye就jiu是shi說shuo,機ji械xie的de磨mo損sun是shi使shi其qi各ge種zhong零ling部bu件jian走zou向xiang極ji限xian技ji術shu狀zhuang態tai的de主zhu要yao原yuan因yin之zhi一yi。那na麼me,解jie決jue機ji械xie零ling部bu件jian的de磨mo損sun問wen題ti。除chu了le采cai用yong優you良liang的de材cai料liao、選擇先進的製造工藝、設she計ji合he理li的de機ji械xie結jie構gou外wai,在zai使shi用yong過guo程cheng中zhong要yao做zuo的de一yi項xiang重zhong要yao工gong作zuo就jiu是shi保bao證zheng對dui機ji械xie的de合he理li潤run滑hua。據ju統tong計ji,工gong程cheng機ji械xie的de故gu障zhang有you一yi半ban以yi上shang是shi由you潤run滑hua不bu良liang引yin起qi的de。
youyugongchengjixiegelingbujianpeihedejingmixing,lianghaoderunhuakeyishiqibaochizhengchangdegongzuojianxiheheshidegongzuowendu,congerjiangdilingjiandemosunchengdu,jianshaojixieguzhang。zhengchangheliderunhuashijianshaojixieguzhangdeyouxiaocuoshizhiyi。weici,yishiyaohelixuanyongrunhuaji,yaogenjujixiedezhongleiheyingyongjiegoudebutongxuanyongzhengchangderunhuajileibie,genjujixiedeyaoqiuxuanyongheshidezhiliangdengzu,genjujixiedeyaoqiuxuanyongheshidezhiliangdengji,genjujixiedegongzuohuanjinghebutongdejijiexuanzeheshiderunhuajipaihao。shiyongzhong,jibukeshiyongdidengjiderunhuaji,yebukeyongqitazhongleiderunhuajidaiti,gengbukeshiyongliezhichanpin。ershiyaojingchangjianzharunhuajideshulianghezhiliang。shuliangbuzuyaojishibuchong,zhiliangbujiayaojishigenghuan。yingjitiaojianxiashiyongbutongzhongleijipaihaorunhuajidaiyongzhe,shihouyidingduirunhuaxitongjinxingqingxibingjishidigenghuanzhengchangderunhuaji。
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4、適時維修
機(ji)械(xie)在(zai)使(shi)用(yong)過(guo)程(cheng)中(zhong)必(bi)然(ran)會(hui)出(chu)現(xian)各(ge)種(zhong)各(ge)樣(yang)的(de)故(gu)障(zhang)。在(zai)這(zhe)些(xie)故(gu)障(zhang)中(zhong),有(you)些(xie)故(gu)障(zhang)對(dui)機(ji)械(xie)設(she)備(bei)的(de)影(ying)響(xiang)可(ke)能(neng)是(shi)很(hen)微(wei)小(xiao)的(de),有(you)些(xie)是(shi)比(bi)較(jiao)嚴(yan)重(zhong)的(de),甚(shen)至(zhi)會(hui)造(zao)成(cheng)機(ji)毀(hui)人(ren)亡(wang)的(de)大(da)事(shi)故(gu)。經(jing)驗(yan)表(biao)明(ming),嚴(yan)重(zhong)機(ji)械(xie)故(gu)障(zhang)往(wang)往(wang)是(shi)由(you)一(yi)些(xie)較(jiao)小(xiao)的(de)故(gu)障(zhang)引(yin)發(fa)的(de)。究(jiu)其(qi)原(yuan)因(yin),就(jiu)在(zai)於(yu)忽(hu)視(shi)了(le)對(dui)小(xiao)故(gu)障(zhang)的(de)及(ji)時(shi)處(chu)置(zhi)。因(yin)此(ci),對(dui)於(yu)機(ji)械(xie)故(gu)障(zhang),無(wu)論(lun)大(da)小(xiao)都(dou)應(ying)及(ji)時(shi)地(di)進(jin)行(xing)排(pai)除(chu),這(zhe)樣(yang)才(cai)能(neng)保(bao)持(chi)機(ji)械(xie)的(de)正(zheng)常(chang)性(xing)能(neng),減(jian)少(shao)引(yin)發(fa)更(geng)大(da)故(gu)障(zhang)的(de)可(ke)能(neng)性(xing)。
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fu蝕shi等deng。二er要yao嚴yan格ge機ji械xie的de日ri常chang維wei護hu工gong作zuo,使shi機ji械xie處chu於yu良liang好hao的de技ji術shu狀zhuang態tai。三san是shi要yao教jiao育yu操cao作zuo人ren員yuan正zheng確que的de使shi用yong和he操cao作zuo各ge種zhong工gong程cheng機ji械xie,減jian少shao和he防fang止zhi人ren為wei失shi誤wu引yin起qi的de機ji械xie故gu障zhang。四si要yao精jing心xin保bao養yang機ji械xie,要yao做zuo到dao正zheng確que合he理li地di進jin行xing定ding期qi與yu不bu定ding期qi保bao養yang,保bao持chi機ji械xie的de清qing潔jie、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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