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1、成人高等教育畢業(yè)設(shè)計(論文)題目:船舶柴油機(jī)活塞的檢修學(xué)生姓名:姜龍函授站點(diǎn):威海學(xué)號:091462001專業(yè)名稱:輪機(jī)工程學(xué)習(xí)層次:本科學(xué)習(xí)形式:函授指導(dǎo)教師:陳群生審核簽字:二○一一年九月摘要海上運(yùn)輸是交通運(yùn)輸?shù)闹匾M成部分,在促進(jìn)外貿(mào)運(yùn)輸發(fā)展和推動對外貿(mào)易增長等方面以其他運(yùn)輸方式不可比擬的優(yōu)勢發(fā)揮出越來越重要的作用。船舶柴油機(jī)的結(jié)構(gòu)比較復(fù)雜,它是由許多機(jī)構(gòu)和系統(tǒng)組成。盡管各種柴油機(jī)的結(jié)構(gòu)、型號各異,但從工作原理和總體結(jié)構(gòu)上看則有很多共同之處?;钊遣裼蜋C(jī)的主要運(yùn)動部件之一,是燃燒室的組成部分?;钊?/p>
2、工作時承受著很大的機(jī)械應(yīng)力和熱應(yīng)力,同時還承受摩擦。因此,在使用中活塞容易損壞,特別是高增壓柴油機(jī)的活塞,這就需要輪機(jī)管理人員根據(jù)其原理認(rèn)真分析,找出故障的原因,進(jìn)而解決問題,使機(jī)器恢復(fù)正常運(yùn)轉(zhuǎn),保證船舶航行安全。關(guān)鍵詞:常見故障,活塞處理,柴油機(jī)AbstractMaritimetransportisanimportantpartoftransportation,transportationinthepromotionofforeigntradedevelopmentandpromotionoffore
3、igntradegrowthandotheraspectsoftheincomparableadvantageofothermodesoftransportplayanincreasinglyimportantrole.?Thestructureofmarinedieselengineismorecomplex,itiscomposedofmanyinstitutionsandsystems.?Althoughthestructureofavarietyofdieselengines,modelsvar
4、y,buttheworkingprincipleandtheoverallstructuralpointofviewtherearealotincommon.?Dieselenginepistonisoneofthemajormovingparts,ispartofthecombustionchamber.?Pistonworkunderalotofmechanicalstressandthermalstress,butalsotowithstandfriction.Therefore,thepisto
5、niseasytodamageinuse,especiallyhigh-superchargeddieselenginepistons,enginemanagementwhichrequiresacarefulanalysisbasedontheprinciple,toidentifythecauses,andthussolvetheproblem,themachinebacktonormaloperation,toensuresafetyofnavigation?.Keywords:familiarm
6、alfunction,Pistons?deal,diesel目錄第一章簡述活塞························································································11.1活塞的作用…………………………………………………………………………11.2活塞的工作條件……………………………………………………………1第二章活塞損壞的原因·············································
7、················22.1活塞外圓表面的磨損原因…………………………………………………………22.2環(huán)槽磨損的原因……………………………………………………………………22.3活塞裂紋和破裂的原因……………………………………………………………32.4活塞燒蝕原因……………………………………………………3第三章活塞損壞的修復(fù)·····················································43.1活塞外圓表面磨損的修復(fù)………………………………………………
8、…43.2環(huán)槽磨損的測量與修復(fù)………………………………………………43.3活塞裂紋的修復(fù)………………………………………………………………53.4活塞燒蝕測量與修復(fù)…………………………………………………………………6第四章修復(fù)后活塞的檢驗。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。7第五章結(jié)束語……………………………………………………………8參考文獻(xiàn)·····················