设计简介
电控行星齿轮变速器设计
摘 要：驾驶舒适、能减少驾驶者疲劳的优点，已成为现代轿车配置的一种发展方向。装有自动变速器的汽车能根据路面状况自动变速变矩，驾驶者可以全神贯注地注视路面交通而不会被换档搞得手忙脚乱。据此，本课题主要研究行星齿轮变速器，其目的是对机械原理、机械设计、AutoCAD等知识熟练运用和掌握，并利用AutoCAD软件绘制装配图和零件图。同时运用汽车构造、汽车设计、材料力学、汽车新能源与节能技术等学科知识对行星齿轮变速器进行节能安全设计。行星齿轮变速较普通齿轮变速器具有体积小、重量轻、效率高及传递功率范围大等优点，逐渐获得广泛应用。由于在各种类型的行星齿轮传动中均有效的利用了功率分流性和输入、输出的同轴性以及合理的的采用了内啮合。行星齿轮传动不仅适用于高速、大功率，而且可用于低速、大转矩的机械传动装置上。
关键词：行星齿轮；变速器；档数；传动比；同步器
Design of Electronically Contrplled Planetary Gear Transmission
Abstract：Driving comfort, reduce driver fatigue strengths, has become a development direction of modern car configuration. Cars with automatic transmission can according to road conditions automatic transmission and torque converter, the driver can concentrate fully on the eye on the road traffic and won't be shift to get overwhelmed. Accordingly, this topic mainly studies planetary gear transmission, its purpose is to mechanical principles, mechanical design, such as AutoCAD skillfully use and master of knowledge, and use AutoCAD software to draw the assembly drawing and part drawing. At the same time use of automobile structure, automobile design, mechanics of materials, new energy vehicles and energy-saving technology of planetary gear transmission for subject knowledge such as energy conservation and safety design. Planetary gear than ordinary gear transmission with small size, light weight, high efficiency and large range of transmission power etc, and gradually won a wide range of applications. Due to the various types of planetary gear transmission are effective in the use of the power split and coaxial input and output and the reasonable use of the internal gear. Planetary gear transmission is not only suitable for high speed, high power, and can be used for low speed and big torque mechanical transmission device.
Key words：Planetary gear；Gearbox；Gear；Gear ratio；Synchronizer
目 录
摘要 1
关键词 1
1 前言 2
2 变速器的设计要求及本次设计的目的 3
2.1 变速器的设计要求 3
2.2 本次设计要求 3
2.3 本次设计的目的 4
3 行星变速机构运动分析及控制方法 5
3.1 工作原理 5
3.1.1 正常加减速工作 5
3.1.2 转向 6
3.2 控制方法 6
3.2.1 正常的直线行驶加减速控制方法 6
3.2.2 实现自动控制修正行驶和转弯作业的控制方法 6
4 综合设计 6
4.1 参照条件 6
4.2 传动比 7
4.3 配齿计算 8
4.4 标准直齿圆柱齿轮的基本参数 9
4.5 涡轮蜗杆传动参数设计 12
5 齿轮强度 14
5.1齿轮的损坏形式 14
5.2 齿轮强度计算 15
5.2.1 轮齿弯曲强度计算 15
5.3 齿轮材料的选择 16
6 变速器轴、轴承等零件的设计 17
6.1 轴的设计 17
6.1.1 初选轴的直径 17
6.1.2 轴的刚度验算 20
6.1.3 轴的强度验算 21
6.1.4 轴上花键的设计 22
6.2 轴承的选择 22
7 设计总结 23
参考文献 23
致谢 25
摘 要：驾驶舒适、能减少驾驶者疲劳的优点，已成为现代轿车配置的一种发展方向。装有自动变速器的汽车能根据路面状况自动变速变矩，驾驶者可以全神贯注地注视路面交通而不会被换档搞得手忙脚乱。据此，本课题主要研究行星齿轮变速器，其目的是对机械原理、机械设计、AutoCAD等知识熟练运用和掌握，并利用AutoCAD软件绘制装配图和零件图。同时运用汽车构造、汽车设计、材料力学、汽车新能源与节能技术等学科知识对行星齿轮变速器进行节能安全设计。行星齿轮变速较普通齿轮变速器具有体积小、重量轻、效率高及传递功率范围大等优点，逐渐获得广泛应用。由于在各种类型的行星齿轮传动中均有效的利用了功率分流性和输入、输出的同轴性以及合理的的采用了内啮合。行星齿轮传动不仅适用于高速、大功率，而且可用于低速、大转矩的机械传动装置上。
关键词：行星齿轮；变速器；档数；传动比；同步器
Design of Electronically Contrplled Planetary Gear Transmission
Abstract：Driving comfort, reduce driver fatigue strengths, has become a development direction of modern car configuration. Cars with automatic transmission can according to road conditions automatic transmission and torque converter, the driver can concentrate fully on the eye on the road traffic and won't be shift to get overwhelmed. Accordingly, this topic mainly studies planetary gear transmission, its purpose is to mechanical principles, mechanical design, such as AutoCAD skillfully use and master of knowledge, and use AutoCAD software to draw the assembly drawing and part drawing. At the same time use of automobile structure, automobile design, mechanics of materials, new energy vehicles and energy-saving technology of planetary gear transmission for subject knowledge such as energy conservation and safety design. Planetary gear than ordinary gear transmission with small size, light weight, high efficiency and large range of transmission power etc, and gradually won a wide range of applications. Due to the various types of planetary gear transmission are effective in the use of the power split and coaxial input and output and the reasonable use of the internal gear. Planetary gear transmission is not only suitable for high speed, high power, and can be used for low speed and big torque mechanical transmission device.
Key words：Planetary gear；Gearbox；Gear；Gear ratio；Synchronizer
目 录
摘要 1
关键词 1
1 前言 2
2 变速器的设计要求及本次设计的目的 3
2.1 变速器的设计要求 3
2.2 本次设计要求 3
2.3 本次设计的目的 4
3 行星变速机构运动分析及控制方法 5
3.1 工作原理 5
3.1.1 正常加减速工作 5
3.1.2 转向 6
3.2 控制方法 6
3.2.1 正常的直线行驶加减速控制方法 6
3.2.2 实现自动控制修正行驶和转弯作业的控制方法 6
4 综合设计 6
4.1 参照条件 6
4.2 传动比 7
4.3 配齿计算 8
4.4 标准直齿圆柱齿轮的基本参数 9
4.5 涡轮蜗杆传动参数设计 12
5 齿轮强度 14
5.1齿轮的损坏形式 14
5.2 齿轮强度计算 15
5.2.1 轮齿弯曲强度计算 15
5.3 齿轮材料的选择 16
6 变速器轴、轴承等零件的设计 17
6.1 轴的设计 17
6.1.1 初选轴的直径 17
6.1.2 轴的刚度验算 20
6.1.3 轴的强度验算 21
6.1.4 轴上花键的设计 22
6.2 轴承的选择 22
7 设计总结 23
参考文献 23
致谢 25
