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,designmodularfoodtwin-screwextruderdesign.First,designandchoosetheoverallscheme,adoptblockscrewandcylinderprofilefraction,improvetheproductionefficiency,reducethedifficultyoftheextrudermanufacture;thendesignandcalculatetheextrudersubsystems;mainlyincludesthetransmissionsystem,chargingsystemandextrusionsystem,etc.Finally,checkthekeyparts.Overall,thedesignoffoodtwin-screwextruder,thestructureissimple,havegoodfeedingcharacteristics,transportation,goodmixingandself-cleaningperformance,and,theproductionefficiencyishigher.Keywords:modular;twin-screw;self-cleaningI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。1.2Thedevelopmentoftwin-screwextruderOverview.错误!未定义书签。1.3Compositionoftwin-screwextruder.31.4Themaintechnicalparametersofthetwin-screwextruder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。