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同向旋转型双螺杆挤压机及传动系统设计说明书[带图纸].doc

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同向旋转型双螺杆挤压机及传动系统设计说明书[带图纸].doc

编号无锡太湖学院毕业设计(论文)题目同向旋转型双螺杆挤压机及传动系统设计信机系机械工程及自动化专业学号学生姓名指导教师(职称副教授)(职称)2013年5月25日摘要本文分析了单螺杆挤压机与双螺杆挤压机的特点以及鱼肉仿真食品生产工艺的需要,确定了先通过单螺杆挤压机进行蒸煮、搅拌,再用双螺杆挤压成型机成型的生产流程。在现有挤压机的基础上,并参考了国内外比较成熟的挤压机设计方法,根据鱼肉仿真食品的的特殊工艺要求,对挤压机的关键部位进行了相应的改进。本文详细的介绍了挤压机的主要零部件分配箱、螺杆、机筒等的结构设计,并进行了相应的校核计算对主要传动零部件如分配箱大小齿轮,带轮、从动轴、键等进行了设计和强度校核,并对轴承承载能力、寿命进行了校核计算本文还涉及了挤压机一些辅助元件如加料系统、加热冷却装置、模头装置的选择要求,并进行了简单的设计。最后,本文介绍了一些关于挤压机的安装、操作、控制和维护等方面的内容。关键词齿轮分配箱双螺杆挤压机AbstractThisarticleanalyzedthefoodsimulationmarketdemandandtheproductionpresentsituationfirst,throughanalysistotheprawncrackerandaswellaswiththetraditionalprocessingcraftcontrastfromthetheorytousetheextrudertoproducethefoodcraftfeasibilityandtheeconomicalfeasibility.Next,analyzesthesinglescrewrodextruderwiththedoublescrewrodextrudercharacteristicaswellastheproductioncraftneed,haddetermineddigestionandagitationthroughthesinglescrewrodextruderfirst,thenusesthedoublescrewrodtoextrudetheshaperformationtheproductionprocess.Inthebaseoftheextrudersinexistence,wereferencedthematuremeansofextruderdesigninourcountryandabroadandthespecialworkingcraftworkrequiresofthesnackfoods,then,weimprovedthekeystructureofextruder.Inthistext,weintroducedthestructuredesignofextruderindetail,particulartothemajorpartsassignmenttank,screw,barrelandsystemsanalysisandcalculating.Tothoseimportanttransmissionpartsthebiggearandthesmallgearsinassignmenttank,stripwheel,drivingspindle,key,wemadeadesignandchecktheintensity.Andwecalculateandcheckthecarryingcapacityofthebearingparticularly.Wealsorefertothechoosingrequirementsoftheaccessoriesheatingandcoolingsystem,die,knifeequipment,andmadeasimpledesign.Intheendofthetext,theinstalling,operation,controllingandrepairingoftheextruderwerealsointroduced.KeywordsgearsassignmenttankTwinscrewExtruderIII目录摘要...............................................................................................................................................1ABSTRACT...................................................................................................................................II目录...........................................................................................................................................III1绪论.............................................................................................................................................11.1本课题的研究内容和意义...................................................................................................11.2国内外的发展概况...............................................................................................................41.3本课题应达到的要求...........................................................................................................52双螺杆挤压机设计.....................................................................................................................72.1双螺杆挤压机的工作原理..................................................................................................72.2挤压加工系统......................................................................................................................72.2.1挤压加工系统组成........................................................................................................72.2.2常用挤压术语................................................................................................................82.3双螺杆挤压机零部件结构设计...........................................................................................82.3.1总体结构设计................................................................................................................82.3.2螺杆结构设计................................................................................................................82.3.3机筒结构设计..............................................................................................................132.3.4加料系统......................................................................................................................132.3.5加热和冷却装置系统..................................................................................................132.3.6模板装置......................................................................................................................142.4双螺杆挤压机零部件设计计算.........................................................................................152.4.1主传动系统的设计计算..............................................................................................152.4.2主要传动零部件设计计算和校核..............................................................................162.4.3螺杆推力的传递..........................................................................................................212.4.4螺杆的强度计算..........................................................................................................232.4.5机筒结构的设计..........................................................................................................252.4.6模头结构设计..............................................................................................................252.4.7润滑油的选用..............................................................................................................263双螺杆挤压机的操作...............................................................................................................273.1双螺杆挤压机的安装.........................................................................................................273.2挤压加工系统的操作与维护.............................................................................................273.2.1挤压机的开车..............................................................................................................273.2.2开车操作注意事项......................................................................................................273.2.3挤压机维护保养..........................................................................................................274结论与展望...............................................................................................................................294.1结论.....................................................................................................................................294.2不足之处及未来展望.........................................................................................................29致谢...........................................................................................................................................31参考文献.......................................................................................................................................32

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