发动机与起动机性能匹配测试系统结构设计机械设计毕业论文.doc

目 录 摘 要 1 Abstract 2 1 绪论 3 1.1 选题的意义 3 1.2 发动机的简述与结构 4 1.3测功机-转矩转速传感器 5 1.3.1 转矩转速传感器简介 5 1.3.2电涡流测功机工作原理 7 1.4动力性指标 8 1.4.1扭矩 8 1.4.2转速 8 1.4.3 功率 8 1.5 机械振动的来源 9 1.6国内常用机型比较 10 1.7 发动机测试系统未来发展方向 10 1.8 本章小结 10 2 测试系统设计整体方案选择 11 2.1 测试方法 11 2.2总体方案设计 12 2.2.1设计任务 12 2.2.2设计的整体方案 12 2.3 本章小结 13 3. 测试系统设计参数选择和分析 14 3.1 设计参数的选择与分析 14 3.2地板螺栓的选择 14 3.3支架的微调装置 16 3.4全螺纹螺柱 17 3.5支架零件校核 19 3.5.1剪切力分析校核 19 3.5.2纵向压力分析 19 3.6切应力变形分析 20 3.7支架的振动分析 21 3.8联轴器的设计与分析 22 3.9测功机支架选择与分析 23 3.10 本章小结 24 4 测试系统的安装与使用 25 5 总结 27 参考文献 28 译 文 30 原文说明 37 摘 要 随着近年来家用车辆的激增，对发动机测试设备的需求量越来越大，要求越来越高，使国产发动机测试设备企业也得到了较快的发展。但与国外先进水平比，设备的性能、精度和质量水平还较低，成套设备配套使用的可靠性较差，难以商品化，无法满足汽车发动机行业发展的需要，因此研发一套成熟的系统是十分必要的。动力性指标是表征发动机做功能力大小的指标，一般用发动机的有效转矩、有效功率、发动机转速等作为评价指标。The Design Of Internal Combustion Engine Test System Abstract With the surge in vehicles, the test of enginee is great needed with its level of standards growing, as a result, the test equipment manufacturer in country developed obviously. With international test equipment manufactuing , our national’s quality is not comparable as production’s stabilization hasn’t reach the commercial standard turns out to not an optional of industry. To be a alteration, matured both in stabilization and commercial is essential. The index of combustion engine is Round Per Minute(RPM) and torrance. This article is about the design of combust engine test system. From the supporting system, the joining system, according to the actual requirements to calculate the final draw to meet the test requirements of engine. As the most of parts are standardlization, further more, the un-standardlization parts are made by plant steel or iron, the price of this test equipment been reduced obviously. The extendable of this system is outstanding, after alter four parts only and quick adjustment it became another kind of test system. Key words: combust engine test system，，发动机与起动机性能匹配测试系统结构设计测功机转矩转速传感器动力性指标 动力性指标是表征发动机做功能力大小的指标，一般用发动机的有效转矩、有效功率、发动机转速等作为评价指标。扭矩 扭矩表示使物体加速转