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1、()大学机械工程学院(此文档为word格式,下载后您可任意编辑修改!)()大学毕业设计论文设计(论文)题目:经济型山楂去核机设计系别:机械工程系专业:机械设计制造及其自动化()大学机械工程学院班级:09机制姓名:学号:指导老师:完成时间:2012-11()大学机械工程学院摘要山楂为药、食两用品种,近年来在医药、保健、食品等方面用量大增。在以山楂为原料加工饮料、罐头、果脯和果干制品时去核作业是一项十分重要的前处理工序。我国现在山楂的去核都是采用手工操作。一般每人每天(以8recentyears,Hawthorn,inmedici
2、ne,soarformedicine,foodandvarieties.Inasrawmaterialprocessingbeverages,cannedandpreservedfruitanddriedfruitproductstonuclearworkisaveryimportantpretreatmentprocess.Ourcountrynowthetonuclearweremadebymanualoperation.Generalperpersonaday(850~60kg,laborintensity.Inrecen
3、tyears,withthedevelopmentofeconomyandtheimprovementofpeople'slivingstandardandfoodqualityaskstobethepast,themanualoperationfarcannotsatisfythedemandofmodernfruitprocessing,researchanddevelopanewtonuclearagencyistheprospectofprocessingindustrytend.Hawthornpittergenera
4、lworkingprocessis:thefeeding,positioning,clampingandcuttingandgonuclear,finishedproductandscrapsofcollectedrespectively.Duetotheappearanceofisnotdryrulesshape.Soinmechanicalprocessing,theshapeoftheforpositioning,clamping,cannotguaranteenuclearcenterlinetoolcenterline
5、coincidence,positioning,clampingwillappeardeviation,increasedthebrokenrateandtonuclearnotnetrate.Basedonthephysicalstructureoffruitvarieties:nuclearcenterlineandcentresignifiesconcavepoint(concavepoint)andHuaDiconcavepoint(concavepoint)oftheconnectionclosecoincidence
6、.ThisputforwardaboveFconcavepointforlocatingdatumof,pitteroveralldesign.Theyarethecenterpositioningway,andguaranteethefeed,Whenthepositioningaccuracy.Inviewofthecurrentpitterexistencequestion,thecomprehensiveallkindsofstoningmachineadvantages,designoutoftheeconomyofp
7、itter,mainlyincluding:rotaryintermittentmechanism,automaticfeedingmechanism,bluntneedlereciprocating()大学机械工程学院motionmechanism,wasterecyclinginstitutions,organizationsactioncoordination,tonuclearrateis,减速比i为:考虑到速比较大,因此选用多级集成的减速箱。电动机的基本原则:1)电动机的机械特性、启动、制动、调速及其它控制性能应满足机
8、械特性和生产工艺过程的要求,电动机工作过程中对电源供电质量的影响(如电压波动、谢波干扰等),应在容许的范围内;2)按预定的工作制、冷却方法基辅在情况所确定的电动机功率,电动机的温升应在限定的范围内;3)根据环境条件、运行条件、安装方式、传动方式,选定电动机的结构