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1、机械设计课程设计Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.第一章 绪论一、课程设计的目的（综合训练）1.巩固、加深和扩大在本课程和先修课程学到的知识2.培养机械设计一般方法3.进行机械设计基本技能的训练Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose
2、Pty Ltd.二、课程设计内容电动机减速器联轴器滚筒Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.P226三、设计题目三、设计题目Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with
3、Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.P226Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-201
4、1 Aspose Pty Ltd.P226Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.P226Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.题目题目10 螺旋输送机的传动装置螺旋输送机的传动装置螺旋输送机由电动机驱动，电动机转动，经传
5、动装置带动螺旋轴旋转如图所示。按整机布置，要求电机轴与螺旋平行，使用寿命为8年，每日两班制工作，载荷有中等冲击。该机要求有过载保护，允许螺旋轴转速偏差为5。该机器由一般机械厂小批生产。GEvaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.设计数据如表所示。题号 G1G2G3G4G5G6G7G8螺旋轴转速 180 160 170 145 150 165 175 185螺旋轴转矩 450 380 400 420 410 44
6、0 430 390Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.题目题目11 铸造车间碾砂机的传动装置铸造车间碾砂机的传动装置 碾砂机由电动机驱动。电动机转动，经传动装置带动碾砂机主轴转动，拖动碾轮在碾盘中滚动压碎砂石，如图所示。结构要求碾砂机主轴垂布置。使用寿命为8年，每日三班制工作，连续工作，单向转动。工作中载荷有轻度冲击，允许输送带速度偏差为5。按小批生产规模设计。Evaluation only.Create
7、d with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.设计数据如表所示。题号C1C2C3C4C5C6C7C8碾机主轴转速 180 160 170 145 150 165 175 185碾机主轴转矩 450 380 400 420 410 440 430 390Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose
8、 Pty Ltd.学号学号 01020304050607080910题号题号 H1H2H3H4H5C1C3C4C6C8学号 11121314151617181920题号 E1E2E3E4E5d1d2d3d4d5学号 21222324252627282930题号 I1I2I3I4I5c6c7c8c9c10学号 31323334353637383940题号 F1F2F3F4F5B1B3B5B7B10学号 41424344454647484950题号 G1G2G3G4G5e6e7e8e9e10题目分配题目分配Evaluation only.Created with Aspose.Slides for
9、 .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.1.减速器装配草图1张(1号坐标纸、手绘)；2.工作图：装配图1张、零件图2张，（计算机绘图 、M1:1）3.设计计算说明书1份（60008000）字。4.答辩四、设计工作量Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.1.传动装置总体设计 第12-13周2.装配草图设计 第13-
10、14周3.工作图设计(上机) 第14周4.编写设计计算说明书 第15周5.答辩 第16周五、课程设计计划Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.六、成绩评定六、成绩评定: 综合设计表现、图纸质量、说综合设计表现、图纸质量、说明书及答辩情况，按百分制平分。明书及答辩情况，按百分制平分。七、参考书：七、参考书：1. 机械设计机械设计2.机械设计课程设计机械设计课程设计3.机械零件设计图册机械零件设计图册Evalu
11、ation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.八、课程设计的要求1.明确学习目的，端正学习态度2.在教师的指导下,由学生独立完成3.正确处理理论计算与结构设计的关系4.正确处理继承与创新的关系5.正确使用标准和规范Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose P
12、ty Ltd.第2章 传动装置总体设计一、选择电动机1.选择电动机类型常用：Y系列三相异步电动机(P185)同步转速：3000 1500 1000 750 级数： 2 4 6 8电机安装型式：（P186P187） Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.2.确定电动机的功率KW(1) 工作机所需电动机功率或或工作机的功率Evaluation only.Created with Aspose.Slides fo
13、r .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.F v传动装置总效率 (P12、表2-3)Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.(2)确定电动机型号（表16-1、表16-3） 例：Pd = 3.6 kWnm=960r/minnm=1440r/min表16-1:(P185)由表16-3查取电动机轴外伸端尺寸: D-直径
14、E-长度,等Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.二、传动装置总传动比的确定和分配1.确定总传动比ia2.分配各级传动比减速器外传动比减速器传动比Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.(1) 各级传动比应在推荐范围内选取
15、，不得超过最大值。(表2-1)(3)圆锥-圆柱齿轮减速器或(2)展开式二级圆柱齿轮减速器分配原则:Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.目的：（1）尺寸协调、互不干涉Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.（2）尺寸紧凑、
16、便于润滑Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.注意注意：1.按工作机所需电动机功率Pd计算，而不按电动机额定功率Ped计算。（见P16 例2-3）2.设计轴时应按其输入功率计算、设计传动零件时应按主动轴的输出功率计算三、传动装置运动、动力参数计算计算各轴的功率P、转速n和转矩TEvaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro
17、file 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.F v列汇总表：P17 表2-5Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.第3章 传动零件设计 一、减速器外传动零件设计1.普通V带传动已知：P n T i2.链传动已知：P n T i设计步骤：见教科书例题Evaluation only.Created with Aspose.Slides for .NET 3.5
18、 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd. 1.高速级齿轮传动已知：P n T i设计步骤：见教科书例题 2.低速级齿轮传动已知：P n T i设计步骤：见教科书例题二、减速器内传动零件设计Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.三、按扭矩初步计算轴的最小直径注意：1.键槽单键：加5%双键：加7%2.按表8-4圆整为标准直径3.或按联
19、轴器圆整直径Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.四、验算工作速度误差五、减速器箱体结构尺寸（P23,表4-1）注意：、Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with As
20、pose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0.Copyright 2004-2011 Aspose Pty Ltd.
