TMJ200型水果糖糖料拉白机设计毕业论文.doc

-第1页-南京工程学院继续教育学院毕业设计专用纸目录摘要·············································································································（3）第一章电动机的选择···············································································（4）1.1电动机的型号·············································································（4）1.2电动机功率的计算·····································································（4）1.3确定电动机的转速·····································································（5）第二章总传动比和分配各级传动比·······················································（6）2.1计算总传动比···············································································（6）2.2分配传动装置传动比·································································（6）第三章传动装置的运动和动力参数的计算···········································（7）3.1计算各轴转速···············································································（7）3.2计算各轴的功率···········································································（7）3.3计算各轴的转矩···········································································（8）第四章减速器的设计计算·······································································（9）4.1V带传动的设计计算····································································（9）4.2齿轮的设计·················································································（11）第五章轴的设计·····················································································（16）5.1选用轴的材料和初步估算轴径·················································（16）5.2轴的结构设计··············································································（17）5.3轴上受力分析·············································································（17）5.4绘制水平弯矩图··········································································（17）5.5绘垂直面的弯矩图······································································（17）5.6绘合成弯矩图··············································································（18）5.7转矩图··························································································（18）5.8确定危险截面并计算安全系数·················································（18）第六章轴承的寿命计算·········································································（23）6.1计算内部轴向力S·······································································（23）6.2计算实际轴向力·········································································（23）6.3取系数X、Y值···············································································（23）6.4计算当量载荷P···········································································（24）第七章曲柄的设计和杠杆的设计·························································（25）7.1曲柄的设计·················································································（25）-第2页-南京工程学院继续教育学院毕业设计专用纸7.2杠杆的设计·················································································（26）第八章选用键并校核强度·······························································（26）8.1主轴上安装齿轮处选用键的内型·········································（26）8.2主轴上安装曲柄处选用键的内型·········································（27）第九章箱体的设计···········································································（27）第十章齿轮和轴的润滑油的选择···················································（28）第十一章减速箱加工工艺设计···························································（28）11.1零件的工艺审查····································································（29）11.2毛坯的选择············································································（29）11.3基准选择················································································（30）11.3拟定机械加工工艺路线························································（30）设计小结····························································································（36）参考文献·······························································································（37）摘要-第3页-南京工程学院继续教育学院毕业设计专用纸我设计的是一台水果糖糖料拉白机。型号为TMJ200型。该拉白机对熬出的糖料进行拉伸，让糖料成为白色，使其光泽光亮，常用于酥芯糖糖衣的生产。该机的工作效率为25kg/次，次/810分钟。该机是一个传动机构，我对其传动机构进行设计。该机的工作状况是，通过电动机传到减速器，再通过减速器的变速运动，经过轴带动两曲柄的运动，两曲柄是进行相向运动，进行糖料的拉伸，达到工作的目的。在这次设计中我主要是对该拉白机的结构进行设计的。其主要步骤是，先选择其电动机的型号，根据其工作效率和要求来选择其型号的。然后再对其传动机构进行设计的，在这一部分我设计了主轴和齿轮，还计算了其传动比。其机的主要部分就是曲柄和杠杆。关键字：传动机构减速器曲柄一、电动机的选择-第4页-南京工程学院继续教育学院毕业设计专用纸1.1电动机的型号初选电动机型号：本拉白机在常温下连续工作，载荷平稳，对启动无特殊要求，启动性能较好，所以选用Y型三相鼠笼式异步电动机，封闭式结构，电压为380V。1.2电动机功率的计算所选电动机的额定功率应等于或稍大于工作要求的功率，这样才能使拉白机很好的工作，拉出更多的糖料。电动机的功率为：Pd=Pw/工作机所需功率：Pw=FV/1000w=96.010005102.04=1.16（kw）式中：F-工作机的阻力（N）V-工作机的线速度（m/s）w-工作机的效率电动机到曲柄的总效率为：=1223式中：-电动机到曲柄的总效率1-电动机V带传动的效率2-滚子轴承的效率3-两齿轮间的传动效率由表7.3可查得：1=0.962=0.973=0.98代入得