减速器设计说明书.doc

机械设计课程设计设计题目：二级圆柱齿轮减速器的设计机械与自动控制学院院（系）机械设计制造及其自动化专业班级：09机制（4）班学号：B09300421学生姓名：寿飞锋指导教师：钱萍完成日期：2012年1月8日浙江理工大学目录1.设计任务书······························································11.1设计数据及要求·······················································11.2传动装置简图·························································11.3设计所需完成的工作量················································12.传动方案的拟定························································13.电动机的选择···························································23.1选择电动机的类型····················································23.2选择电动机功率·······················································23.3确定电动机的转速····················································23.4电动机的主要尺寸····················································34.传动比的计算及分配····················································44.1总传动比······························································44.2分配传动比···························································45.传动装置的动力、运动参数计算······································45.1各轴转速······························································45.2各轴功率······························································45.3各轴转矩······························································55.4主要传动数据·························································56.减速器内传动的设计计算··············································56.1高速级斜齿圆柱齿轮的设计计算······································56.2低速级斜齿圆柱齿轮的设计计算······································117.斜齿圆柱齿轮上作用力的计算·········································157.1高速级齿轮传动的作用力··············································157.2低速级齿轮传动的作用力··············································168.减速器装配图的设计····················································168.1合理布置图画·························································168.2绘制齿轮的轮廓尺寸··················································178.3箱体内壁·····························································179.轴的设计计算···························································189.1中间轴的设计计算····················································189.2高速轴的设计计算····················································209.3低速轴的设计计算····················································239.4轴设计的主要参数····················································3010.减速器箱体的结构尺寸···············································3110.1箱座高度····························································3110.2箱体壁厚····························································3210.3轴承座螺栓凸台的设计··············································3210.4设置加强肋板·······················································3210.5箱盖外轮廓的设计··················································3210.6箱体凸缘尺寸·······················································3210.7箱体具体尺寸·······················································3311.润滑油的选择与计算·················································3412.装配图与零件图······················································3512.1附件的设计与选择··················································3512.2绘制装配图和零件图················································3513.设计小结······························································3614.参考文献······························································36附件一：减速器装配图附件二：减速器输出轴附件三：减速器输出轴上的齿轮附件四：减速器箱盖两级展开式圆柱斜齿轮减速器的设计1设计任务书1.1设计数据及要求其中：F—带的工作拉力，N；D—滚筒直径，mm；V—运输带工作速度，m/s。1.2传动装置简图1.3设计所需完成的工作量1）减速器装配图1张(A1)2）零件工作图1张（减速器箱盖、减速器箱座-A2）；2张（输出轴-A3；输出轴齿轮-A3）F（N）D（mm）V(m/s)年产量工作环境载荷特性最短工作年限63004601.3中批矿山平稳传动8年两班1—电动机；2、4—联轴器；3—二级展开式圆柱齿轮减速器；5—卷筒；6—输送皮带图1二级减速器传动简图3）设计说明书1份（A4纸）2传动方案的拟定一个好的传动方案，除了首先应满足机器的功能需求外，还应当工作可靠，结构简单、尺寸紧凑、传动效率高、成本低廉以及使用维护方面，要完全满足这些功能要求是困难的。在拟定传动方案和对多种方案进行比较时，应根据机器的具体使用情况综合考虑，选择能保证主要要求的较合理的传动方案。现以参考文献[2]第3页中的带式输送机的四种传动方案为例进行分析。方案a制造成本低，但宽度尺寸大，带的寿命短，而且不宜在恶劣环境下工作，方b结构紧凑，环境适应性好，但传动效率低，不适于长期连续工作，且制造成本高。方案c工作可靠、传动效率高、维护方便、环境适应好，但宽度较大。方案d具有方案c的优点，而且尺寸较小，但制造成本较高。综合考虑本次设计的要求，选择c方案。传动简图见图1。3电动机的选择3.1选择电动机的类型根据用途选用Y系列一般用途的全封闭自冷式三相异步电动机。3.2选择电动机功率输送带所需功率为kW19.810003.163001000wFvP由表9-1[4]得，一对轴承效率9.90轴承，斜齿圆柱齿轮传动效率7.90齿轮，联轴器效率9.90联，滚筒效率6.90滚筒为则电动机到工作机间的总效率为05.806.909.907.909.90224224滚筒联齿轮轴承总电动机所需工作功率为kW635.9850.08.19PPwd总查表20-1[2]选取电动机的额定功率kW11edP3.3确定电动机的转速输送带带轮的工作转速为r/min974.532603.1601000601000wDvn查表2-2[1]，两级减速器传动比60~8齿i推算电动机转速范围为r/min44.3238~792.43160~8974.53w总innd查表20-1[2]得，符合这一要求的电动机同步转速有750r/min、1000r/min、1500r/min、3000r/min。而3000r/min的电动机转速高，会使传动装置的总传动比、结构尺寸和重量增加，故选用转速为1500r/min的电动机进行试算，其满载转速为mn1460r/min，其型号为Y160M-4。方案电动机型号额定功率（KW）电动机转速r/min电动机质量（㎏）同步满载ⅠY160M-41115001460123ⅡY160M1-21130002930117而3000r/min的电动机转速高，会使传动装置的总传动比、结构尺寸和重量增加，故选用转速为1500r/min的电动机进行试算，其满载转速为mn1460r/min，其型号为Y160M-4。3.4电动机的主要尺寸查表20-1[2]得电动机的主要尺寸如下（单位：mm）HDF×GELEDG38512×860011042374传动比的计算及分配4.1总传动比05.27974.531460wmnni总4.1分配传动比因为输入轴与输出轴直接与联轴器相连，所以传动比不变，减速器的传动比99.15i，因为21)5.1~1.1(ii，所以取214.1ii，所以，154.605.274.14.11ii，396.4154.605.2712iii图2电动机示意图5传动装置的运动、动力参数计算5.1各轴转速min/14601rnnmr/min244.237154.61460112innr/min968.53396.4244.237223innr/min968.533nn卷5.2各轴功率kW539.999.0635.9d1联PPkW16.97.909.90539.912