汽车磨合试验台设计.docVIP

题目：汽车磨合试验台设计 二○○九年十月 摘 要 汽车磨合台是随着汽车工业技术的发展产生的一种新颖突破传统的设备设施.它固定在室内，以连续滚动的滚筒代替汽车实际行驶时的路面，近似的模拟汽车实际行驶过程来对汽车传动部件进行磨合，以使汽车尽快达到最佳性能状态。由于磨合试验台具有迅速、准确、安全、经济、不受外界自然条件的限制以及试验重复性好等优点，同时减少了新车上路磨合的时间，因而以成为发展的方向，并在国内外得到了广泛的应用。 通过对多个方案的设计计算比较，本文采用了机、电、液一体化的设计方案，选择了磨合台滚筒，利用CAD设计软件设计了磨合台的机械部分，对关键部件进行了强度校核，并完成了液压控制系统的设计及电气控控制部分的设计及编程。 关键词：汽车磨合台、滚筒、举升器、PLC ABSTRACT The motor run-in stand is a new equipment with the automobile industry development. The motor run-in stand is indoor located, it use continuous rolling roller replace practical road. The motor run-in stand is rapid ,accurate ,safety ,economic ,free of nature conditions restriction and have good repeatability. Because decreasing the new car’s running-in time ,the motor run-in stand is used more and more in world. Choosing from several proposals , we use mechanical.hydraulic,electrical to design roller,mechanical parts ,check the intensity of critical parts.and we complete the hydraulic system designing and control system designing and programming. Key Word: The motor run-in stand ,roller ,lifter , programming logic controlle 目 录 引言················································································································ 第一章 绪论·······························································································1 磨合试验台机械部分设计· 2.1 试验台总体结构设计·················································································4 2.2 电动机的选择···························································································7 2.3 轴的选择及校核 ……………………………………………………………………… 9 2.4 轴承的选择 ……………………………………………………………………………10 2.5 联轴器的选择 …………………………………………………………………………10 2.6 举升器轴的校核·······················································································11 第三章 磨合试验台控制部分设计 3.1 自动控制器类型的选择·············································································12 3.2 控制器的应用························································································· 13 3.3 PLC的组成与原理···················