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1、华南农业大学机械设计课程设计全套CAD图纸，联系QQ班级：05机化2班设计者：指导老师：日期：2008年1月18号40目录1设计任务····························································32设计方案分析·······················································33机构的结构分析·····················································44电动机的选择·····
2、··················································45传动装置运动和动力参数的选择计算···································56传动零件的设计计算················································6407轴的设计计算·····················································188键联接的设计计算····························
3、·····················309联轴器的选择·····················································3510润滑和密封方式的选择,润滑油和牌号的确定·························3611箱体及附件的结构设计和选择·····································3612设计小结·······················································3813参考资料·······
4、················································3940一、设计任务题目:带式输送机设计参数：传动方案输送带的牵引力F,(KN)输送带的速度v,（m/s）提升机鼓轮的直径D,(mm)37N0.4350设计要求:1.带式输送机提升物料:谷物,型沙,碎矿石,媒等等.2.输送机运转方向不变,工作载荷稳定.3.输送带鼓轮的传动效率取为w＝0.97.4.工作寿命为8年,每年300个工作日,每日工作16小时.二、设计方案分析1.输送带鼓轮2.齿轮传动3.减速器4.连轴器5.电动机三、机构
5、的结构分析40本机构利用两级减速装置有效地减速，外面用齿轮传动能有效地带动卷筒轴。四、电动机的选择计算1.电动机的类型选择根据动力源和工作条件,选择Y系列三相异步电动机2.电动机功率的选择查表知联=0.99,齿=0.98,轴承=0.99,带鼓轮=0.97=联×齿3×轴承4×带鼓轮=0.99×0.983×0.994×0.97=0.87工作机所需电动机的功率Pd=Pw/η=2.89/0.87=3.32Kw工作机所需功率Pw=Fv/(1000ηw)=7×0.4/(1000×0.97)=2.89Kw3.电动机转速的选择滚动轴工作转
6、速：nw=60×1000v/(D)=60×1000×0.4/(3.14×350)=21.84r/min通常，两级圆柱齿轮减速器的推荐传动比为＝8～60,单级圆柱齿轮减速器传动比范围为3～6，故电动机的转速可选范围为：nˊ=（3～6）×(8～60)×21.84r/min=(524.16～7862.4)r/min对于Y系列电动机，多选用同步转速为1000r/min或1500r/min的电动机。在1000r/min与1500r/min两种中选取，有如下方案：方案电动机型号额定功率（KW）电动机转速n（r/min）同步转速满载转速
7、1Y112M-44150014402Y132M1-641000960初选同步转速为1000r/min.即方案2。4.电动机型号的确定查表得初取电动机型号为Y132M1-6满载转速为960r/min.同步转速1000r/min,6级电动机型号额定功率/KW满载转速/r·min-1Y132M1-649602.02.040电动机的相关尺寸：中心高H/mm外形尺寸底角安装尺寸A×B地脚螺栓孔直径K轴伸尺寸D×E键公称尺寸F×h132515×345×315216×1781538×8010×1325.传动比的分配总传动比ia=nm/n
8、w=960/21.84=43.96ia=i齿1×i齿2×i齿3取i齿2=3.7则i齿3=2.846（高速级与低速级传动比为1.3～1.4）则i齿1=ia/i齿2/i齿3=43.96/3.7/2.846=4.17五、传动装置运动和动力参数的选择计算1.各轴的转速计算轴Ⅰ:n1=nm=960r/min轴Ⅱ:
