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食品用双螺杆挤出机主机的设计说明书.doc

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食品用双螺杆挤出机主机的设计说明书.doc

I摘要针对设计任务要求,进行了组合式食品双螺杆挤出机的设计。首先,进行了总体方案的设计与选择,确定采用积木式螺杆和剖分式机筒,有利于提高生产效率,降低挤出机的制造难度然后,对挤出机的各组成子系统进行了设计与计算,主要包括传动系统、加料系统和挤出系统等的设计。最后,对关键的零部件进行了校核计算。总体上看,所设计的食品双螺杆挤出机,结构比较简单,有较好的进料特性、正向输送特性、良好的混合和自洁性能,而且,生产效率也较高。关键词组合式双螺杆自洁IIAbstractAccordingtotherequirement,designmodularfoodtwinscrewextruderdesign.First,designandchoosetheoverallscheme,adoptblockscrewandcylinderprofilefraction,improvetheproductionefficiency,reducethedifficultyoftheextrudermanufacturethendesignandcalculatetheextrudersubsystemsmainlyincludesthetransmissionsystem,chargingsystemandextrusionsystem,etc.Finally,checkthekeyparts.Overall,thedesignoffoodtwinscrewextruder,thestructureissimple,havegoodfeedingcharacteristics,transportation,goodmixingandselfcleaningperformance,and,theproductionefficiencyishigher.KeywordsmodulartwinscrewselfcleaningI目录摘要............................................................IAbstract..........................................................II第1章绪论....................................................11.1课题研究的意义.........................................11.2双螺杆挤出机的发展概况.................................11.3双螺杆挤出机的组成.....................................31.4双螺杆挤出机的主要技术参数.............................3第2章总体方案确定..............................................52.1设计参数...............................................52.2整体方案的拟定.........................................5第3章传动系统的设计............................................73.1电动机的选择............................................73.1.1选择电动机类型和结构形式...........................73.1.2选择电动机的容量及转速.............................73.2初步方案..............................................83.2.1转速图布置.........................................83.2.2传动系统和扭矩分配装置.............................103.3计算传动系统装置的运动和动力参数......................113.3.1各轴输入功率.......................................113.3.2各轴输入转矩......................................123.3.3齿轮的齿数........................................123.3.4第五对齿轮的设计..................................123.3.5第二对齿轮的设计..................................183.3.6带轮的设计........................................233.3.7轴的初步设计......................................273.3.8轴的校核..........................................28第4章挤出系统的设计.....................................324.1螺杆的设计............................................324.1.1螺杆设计主要指标..................................32II4.1.2螺杆主要参数的设计................................334.2螺杆轴承装置..........................................364.2.1螺杆轴向力的确定..................................374.2.2螺杆的强度计算....................................374.2.3轴承组的工作特点..................................394.2.4套筒式串联推力轴承组..............................394.2.5轴承设计原则......................................404.3机筒设计..............................................404.3.1机筒元件的结构形式................................414.3.2机筒的材质........................................44第5章加热与冷却装置...........................................455.1加热装置..............................................455.1.1载体加热器........................................455.1.2电阻加热..........................................465.1.3电感应加热器......................................465.2冷却装置..............................................47结论...........................................................48致谢...........................................................49参考文献.........................................................50IIICONTENTSAbstract...................................................................................错误未定义书签。Chapter1Introduction......................................................................................11.1Thesignificanceoftheresearch..................................错误未定义书签。1.2ThedevelopmentoftwinscrewextruderOverview..错误未定义书签。1.3Compositionoftwinscrewextruder..........................................................31.4Themaintechnicalparametersofthetwinscrewextruder错误未定义书签。Chapter2Overallprogramtodetermine........................................................52.1Designparameters......................................................................................52.2Theformulationoftheoverallprogram.....................................................5Chapter3Transmission.....................................................................................73.1Motorselecting........................................................................................73.1.1Selectmotortypeofnuclearstructure............................................73.1.2Selectmotorcapacityandspeed.....................................................73.2Preliminaryprogram..................................................................................83.2.1SpeedChartLayout.........................................................................83.2.2Torquetransmissionanddistributionequipment..........................103.3Calculatethemovementandpowertransmissionequipmentparameters错误未定义书签。3.3.1Theshaftinputpower......................................错误未定义书签。3.3.2Theshaftinputtorque......................................错误未定义书签。3.3.3Gearteeth.........................................................错误未定义书签。3.3.4Fifthgeardesign...............................................错误未定义书签。3.3.5Thedesignofthesecondgear..........................错误未定义书签。3.3.6Pulleydesign....................................................错误未定义书签。3.3.7Axisofthepreliminarydesign.........................错误未定义书签。3.3.8Checkingoftheaxis.........................................错误未定义书签。

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