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两轴式变速器毕业设计说明资料最终版.doc

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夏利汽车N3变速器设计 Charade car of N3 gearbox design 专业:机械设计制造及自动化(汽车工程) 姓名:张若军 指导老师: 申请学位级别:学士 论文提交日期:2013.6.10 学位授予单位:天津科技大 摘  要 关键词:变速器;同步器; ABSTRACT Automotive transmission is the core part of the car. Main functions: regulation of transformation engine performance, the power effectively transmitted to the drive wheels, in order to meet requirements of the car driving. Auto transmission is an important component to complete transmission function, affecting vehicle drivability of the main components. We usually designed for automotive transmission with high levels and standards, which will not only affect the cars power, but also affect the reliability of the shifting operation motorists and portability, as well as fuel economy and smooth driving and so on. With the development and progress of the automobile industry, automobile transmission design criteria and standards greatly improved, mainly increase its transmission power to weight ratio, but also for its size with a more sophisticated and better vehicle performance. The design of production models based Xiali N3 transmissions. In speed, maximum speed, the engine output torque Max.gradeability known case, focusing on the structural parameters of the transmission gear, shaft structure size, etc. design calculations. Transmission solutions for automotive transmissions and structure were designed, taking into account synchronizer for controls and rational design of the structure, to improve the cars overall performance requirements. Their own independent design a standard five-speed two-shaft transmission. Keywords: two-axis transmission; synchronizer; five-speed transmission 目 录 第1章 绪论 1 1.1 概述 1 1.1.1 汽车变速器的设计 1 1.1.2国内外变速器的发展现状 2 1.2 设计的步骤及方法 2 第2章 变速器传动机构与操纵机构 3 2.1 汽车变速器传动机构布置方案 3 2.1.1 变速器传动方案分析与选择 3 2.1.2 倒档布置方案 3 2.1.3 零部件结构方案分析 4 2.2 变速器操纵机构布置方案 5 2.2.1 概述 5 2.3 本章小结 6 第3章 变速器的设计与计算 7
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