资源描述:
《除草机的结构设计-机械毕业设计(含全套cad图纸)》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、本科学生毕业设计除草机的结构设计系部名称:机电工程学院专业班级:机械设计制造及其自动化08-3班学生姓名:周轩指导教师:任忠先职称:教授哈尔滨工程大学2012年6月TheGraduationDesignforBachelor'sDegreeTheStructureDesignofTheForestBrushBreakerCandidate:ZhouXuanSpecialty:MechanicalDesignandManufactureandAutomationClass:08-3Supervisor:Lecturer.RenZhongxianhaerbinInstitut
2、eofTechnology2012-06·Harbin哈尔滨工程大学本科生毕业设计摘要本设计介绍了一种林区除草机产品:自走式除草机。设计中根据林区路面状况,以及清林抚育的作业情况,而设计出能够适应林区崎岖路面及道路狭窄等恶劣环境的自走式除草机,具有很高的实用性和推广价值。该自走式除草机由行走部分,割灌部分,驾驶台以及排障部分等组成,可以锯切加工直径范围在10~80mm的灌木。整个机器由两个汽油机提供动力,一个提供行走动力,另一个提供割灌动力。锯片位于整个机器的前下端,由驾驶台控制杆控制其离地面高度,以适应林区路面状况。通过顶部的排障杆使高于机器顶部的灌木倒向预定方向,达到
3、排障目的。该自走式除草机结构简单,容易维修,操作简单。在文章中,对该自走式除草机的主要部件进行了设计计算(例如:皮带轮,轴,轴承,键,四连杆等),并对主要部件进行了系统的介绍和说明,对使用中涉及到的润滑,保养及注意事项也作了说明。关键词:自走式;除草机;除草部分;行走部分;驾驶台;排障杆Ⅰ哈尔滨工程大学本科生毕业设计AbstractAselfprecededtrashbreaker,anewforestrymachinehasbeenpresentedinthispaper.Accordingtoforestroadsurfaceconditions,andworking
4、situationsofclearingfosteringtrees,theself-propelledbrushbreakerwasdesignedtoadapttoanyatrociousenvironment,suchasruggedroadsurface,narrownessofroadandsoon.Itwashighlypracticabilityandgeneralizingvalue.Thisself-propelledbrushbreakerisconsistofwalkingport,cuttingport,bridgeandbreachingofob
5、staclespartandcansawbrushindiameterrangefrom10mmto80mm.Thepowerofwholemachineissuppliedbytwopetrolmotors,oneisforrunningpower,theotherisforbreakingbrushpower.Sawbladewasunderthemachine,thecontrolstickondrivingstandcontrolitsheightawayfromgroundtoadapttotheforestroadsurfacecondition.Thebus
6、hesthatarehigherthanthemachinecanbecontrolledbyapilotbar,whichcanmakebushesfallalongthepre-designeddirectionandgetridofobstacles.Thisstructureofself-propelledbrushbreakerissimple,iseasytomaintain,andisoperatedeasilyaswell.Themainpartsoftheself-propelledbrushbreakerhavebeencompeeredandtest
7、edinthispaper,suchaspulley,axes,bearing,bond,fourlinkrodsandsoon,andthemainpartshavebeenintroducedandexplainedsystemically,andhavelubrication,maintenanceandothermattersnrelatedinusing.Keywords:Self-propelled;brushbreaker;thecuttingport;thewalkingport;bridge,;pilotba