图书简介:
绪论 ················································································································1第 1 章 精密机械零件的受力分析与平衡 ································································31.1 力学的基本概念 ····················································································31.2 约束、约束反力与受力图 ········································································51.3 精密机械零件的受力平衡 ········································································8习题 1 ····································································································· 11第 2 章 精密机械零件受力变形与应力分析 ··························································· 132.1 精密机械零件的强度和刚度 ··································································· 132.2 杆件的拉伸与压缩 ··············································································· 142.3 机械零件的剪切 ·················································································· 172.4 机械零件的扭转 ·················································································· 192.5 梁类零件的平面弯曲 ············································································ 23习题 2 ····································································································· 28第 3 章 平面机构的运动简图与自由度计算 ··························································· 313.1 运动副及其分类 ·················································································· 313.2 平面机构运动简图 ··············································································· 353.3 平面机构的自由度计算 ········································································· 37习题 3 ····································································································· 42第 4 章 平面连杆机构 ······················································································ 444.1 铰链四杆机构的基本形式和特性 ····························································· 444.2 铰链四杆机构曲柄存在的条件 ································································ 474.3 铰链四杆机构的演化 ············································································ 494.4 平面四杆机构的设计 ············································································ 51习题 4 ····································································································· 52第 5 章 凸轮机构 ···························································································· 545.1 凸轮机构的应用和分类 ········································································· 545.2 从动件的常用运动规律 ········································································· 555.3 图解法设计盘形凸轮轮廓 ······································································ 585.4 凸轮机构基本尺寸的确定 ······································································ 59习题 5 ····································································································· 61 ·VI·第 6 章 齿轮传动 ···························································································· 626.1 齿轮机构的特点和分类 ········································································· 626.2 齿廓啮合基本定理 ··············································································· 626.3 渐开线齿廓 ························································································ 636.4 齿轮各部分名称及渐开线标准直齿圆柱齿轮的几何尺寸计算 ························· 656.5 渐开线标准直齿圆柱齿轮的啮合传动 ······················································· 676.6 渐开线齿轮的切齿原理与根切现象 ·························································· 706.7 斜齿圆柱齿轮机构 ··············································································· 736.8 圆锥齿轮机构 ····················································································· 776.9 蜗杆蜗轮机构 ····················································································· 806.10 齿轮传动的失效形式及设计准则 ···························································· 846.11 齿轮材料及热处理 ·············································································· 866.12 齿轮传动精度 ··················································································· 876.13 直齿圆柱齿轮传动的强度计算 ······························································· 896.14 斜齿圆柱齿轮传动强度计算 ·································································· 946.15 直齿圆锥齿轮传动 ············································································· 966.16 蜗杆传动 ························································································· 976.17 齿轮传动链的设计 ············································································· 99习题 6 ···································································································· 106第 7 章 轮系 ································································································· 1097.1 轮系的类型 ······················································································· 1097.2 定轴轮系传动比计算 ··········································································· 1097.3 周转轮系传动比计算 ··········································································· 1117.4 复合轮系传动比计算 ··········································································· 1147.5 轮系的功能 ······················································································· 1157.6 几种特殊的行星齿轮传动简介 ······························································· 117习题 7 ···································································································· 118第 8 章 设计概论与精度设计 ············································································ 1208.1 精密机械设计的要求、程序与方法 ························································· 1208.2 精密机械零件的强度 ··········································································· 1228.3 精密机械零件的常用材料及钢的热处理 ··················································· 1258.4 精密机械零件的结构工艺性 ·································································· 1308.5 精密机械零件的刚度 ··········································································· 1308.6 精密机械精度设计 ·············································································· 1318.7 精度设计原则 ···················································································· 1328.8 公差与配合 ······················································································· 1338.9 形状公差与位置公差 ··········································································· 143习题 8 ···································································································· 147 ·VII·第 9 章 带传动 ······························································································ 1499.1 带传动的类型和应用 ··········································································· 1499.2 带传动的受力分析 ·············································································· 1509.3 带传动中带的应力分析 ········································································ 1529.4 带传动的弹性滑动和打滑 ····································································· 1539.5 普通 V 带传动的设计计算 ···································································· 1549.6 V 带轮设计及带传动张紧装置 ······························································· 1599.7 同步带传动简介 ················································································· 162习题 9 ···································································································· 167第 10 章螺旋传动 ························································································· 16810.1 螺旋传动的类别 ··············································································· 16810.2 螺旋传动的计算 ··············································································· 16810.3 螺旋机构误差分析 ············································································ 17210.4 提高螺旋传动精度的措施···································································· 17510.5 螺旋传动的结构形式 ········································································· 178习题 10 ··································································································· 184第 11 章 轴 ·································································································· 18511.1 概述 ······························································································· 18511.2 轴的结构设计 ··················································································· 18711.3 轴的强度计算 ··················································································· 18911.4 轴的刚度计算 ··················································································· 192习题 11 ··································································································· 193第 12 章 轴承 ······························································································· 19512.1 轴承的分类 ····················································································· 19512.2 滑动轴承的结构形式与轴承材料 ··························································· 19512.3 滚动轴承的基本类型和特点 ································································· 19712.4 滚动轴承的代号 ··············································································· 19912.5 滚动轴承的选择计算 ········································································· 20112.6 滚动轴承的组合设计 ········································································· 205习题 12 ··································································································· 210第 13 章 弹性元件及常用机构 ·········································································· 21113.1 弹性元件 ························································································ 21113.2 微动机构 ························································································ 22213.3 示数装置 ························································································ 22513.4 记录装置 ························································································ 22713.5 计数装置 ························································································ 229 ·VIII·13.6 锁紧装置 ························································································ 23013.7 减振器 ··························································································· 232习题 13 ··································································································· 235第 14 章 基座和导轨 ······················································································ 23714.1 导轨的作用、特点和分类···································································· 23714.2 导轨设计的基本要求 ········································································· 23814.3 导轨导向设计 ·················································································· 24214.4 滚动导轨 ························································································ 24314.5 基座 ······························································································ 245习题 14 ··································································································· 252第 15 章 连接 ······························································································· 25315.1 概述 ······························································································ 25315.2 螺纹的基本知识 ··············································································· 25315.3 螺纹连接的主要类型及应用 ································································· 25615.4 螺纹连接的预紧与防松······································································· 25715.5 键连接和花键连接 ············································································ 26015.6 销连接 ··························································································· 262习题 15 ··································································································· 262参考文献 ······································································································· 263
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本书为国家精品课程、国家精品资源共享课程、国家一流本科课程、国家精品在线开放课程“精密机械设计”的主教材,被列为“十二五”普通高等教育本科国家级规划教材,是测控技术与仪器专业基础课教学用书。高等教育改革,对人才培养目标和培养模式、专业设置和教学计划、课程体系和内涵、教学方法和手段等方面提出了新的要求。按照仪器仪表类专业改革“以综合设计能力的培养为主线,相关课程整体优化”的总体思路,“精密机械设计”课程的目标应以培养学生对系统总体方案设计、机械零部件工作能力设计和结构设计的能力为主,使学生能够掌握一般精密机械部件工作原理的分析方法和精密机械机构的设计方法。因此,“精密机械设计”课程的教学改革必须适应这种形势,要符合培养学生较宽领域的基本知识、能力和素质的要求。“精密机械设计”作为测控技术与仪器专业的一门专业基础课,是教育部高等学校仪器类专业教学指导委员会确定的核心主干课,主要任务是使学生初步掌握有关精密机械设计的基本原理和方法,进行精密机械中常用零部件的设计。编著者试图在满足教学基本要求的情况下,贯彻少而精的原则,力求做到精选内容,适当拓宽知识面,反映学科成就。因此,本书从力学基础知识、机械原理、金属材料及热处理、精度设计、机械结构设计与传动等方面阐述本课程的知识点,可供相关专业作为专业基础课教材。除绪论外,本书包括15章内容。第1~2章讲述精密机械设计所需的力学基础知识;第3~7章讲述精密机械中常用机构的工作原理和运动特性等基本知识;第8~12章讲述精密机械设计中所用材料的热处理方法、精度设计、常用机械零部件的特点和设计计算的知识;第13~15章讲述精密机械中常用弹性元件、常用机构、基座和导轨、常用连接相关知识。本书由许贤泽教授、徐逢秋教授编著,刘刚、何加文、蒋宇飞、何韩、宋明星、邹梦龙、施元、周顺、曾志豪也参与了本书的编写。全书由许贤泽教授统稿。曾周末教授审阅了本书,并提出了许多宝贵意见。书中引用了许多文献资料,未能一一列出,在此向文献资料的原作者谨致谢意。限于编著者的水平,谬误及欠妥之处在所难免,衷心希望广大读者提出宝贵的意见,并对书中不妥之处进行批评指正。本书免费提供教学资源(含电子课件),读者可以登录http://www.hxedu.com.cn(华信教育资源网),注册之后进行下载。读者反馈:liuzih@phei.com.cn。
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