设计简介
摘要
本文在学习相关知识，理解非圆齿轮基本概念和基本方法的基础上，系统地阐述了非圆齿轮实现无级变速的工作原理、设计方法及计算校核过程，绘制了齿轮型无级变速装置装配总图和部分零件图，并进行了运动仿真。采用无级变速传动装置取代传统的汽车多挡有级变速器，不仅有利于节能（降低油耗）和环保（减少废气排放），而且变速操作简便。
齿轮型无级变速装置由可控相位的多组（本设计中为6组）并列非圆齿轮无级变速定轴轮系—超越离合器—圆齿轮变速机构组成。
关键词：非圆齿轮 无级变速 传动速比
This paper is studying related knowledge, comprehending a non- circle gear which the foundation of the basic concept and basic method, systematically elaborated a non- circle gear how to work, the principle of the design method and match process. Have drawn the assemble diagram and parts of spare parts diagrams. The adoption has transmission equipment of continuously variable transmission to replace a traditional automobile to block the class gearbox more soon, not only being advantageous to the economy energy(lower oil to consume) and environmental protection(reduce waste gas to exhaust), but also becoming to operate soon simple.
The gear CVT type has some(this design in for 6 sets of) parallel non-circle gears-overrunning clutch-common gears, whose phase-angle be controlled by the certain equipment .
Key words: non-circle gear continuously variable transmission transmission ratio
本文在学习相关知识，理解非圆齿轮基本概念和基本方法的基础上，系统地阐述了非圆齿轮实现无级变速的工作原理、设计方法及计算校核过程，绘制了齿轮型无级变速装置装配总图和部分零件图，并进行了运动仿真。采用无级变速传动装置取代传统的汽车多挡有级变速器，不仅有利于节能（降低油耗）和环保（减少废气排放），而且变速操作简便。
齿轮型无级变速装置由可控相位的多组（本设计中为6组）并列非圆齿轮无级变速定轴轮系—超越离合器—圆齿轮变速机构组成。
关键词：非圆齿轮 无级变速 传动速比
Abstract
This paper is studying related knowledge, comprehending a non- circle gear which the foundation of the basic concept and basic method, systematically elaborated a non- circle gear how to work, the principle of the design method and match process. Have drawn the assemble diagram and parts of spare parts diagrams. The adoption has transmission equipment of continuously variable transmission to replace a traditional automobile to block the class gearbox more soon, not only being advantageous to the economy energy(lower oil to consume) and environmental protection(reduce waste gas to exhaust), but also becoming to operate soon simple.
The gear CVT type has some(this design in for 6 sets of) parallel non-circle gears-overrunning clutch-common gears, whose phase-angle be controlled by the certain equipment .
Key words: non-circle gear continuously variable transmission transmission ratio
目 录
第一章 概论…………………………………………………………………… 1
1.1 课题的来源、意义及国内外的现状和发展…………………………1
1.2 课题任务………………………………………………………………2
第二章 非圆齿轮实现无级变速的原理………………………………………3
2.1 非圆齿轮的基本理论知识……………………………………………3
2.2 非圆齿轮的传动特性…………………………………………………3
第三章 传动方案的选定………………………………………………………6
3.1 星型布局方式…………………………………………………………6
3.2 并列布局方式…………………………………………………………8
3.3 方案对比选择……………………………………………………………10
第四章 非圆齿轮设计…………………………………………………………11
4.1 非圆齿轮的中心距与节曲线方程………………………………………11
4.2 中心距的确定……………………………………………………………12
4.3非圆齿轮的齿廓……………………………………………………………14
4.4装置结构图…………………………………………………………………14
第五章 非圆齿轮定轴轮系强度计算…………………………………………16
5.1 变速器的中心距A………………………………………………………16
5.2 齿宽B的计算…………………………………………………………… 17
5.3齿形、压力角
及螺旋角
………………………………………………17第六章 变速装置齿轮和轴的材料选用及强度校核………………………… 19
6.1材料选用………………………………………………………………………19
6.2强度计算及校核………………………………………………………………19
6.3变速器轴的设计计算…………………………………………………………21
6.4蜗轮蜗杆设计………………………………………………………………25
第七章 其他零件的设计选用……………………………………………………30
7.1轴承的选用……………………………………………………………………30
7.2超越离合器的选用……………………………………………………………30
7.3齿轮连接装置………………………………………………………………31
第八章 箱体设计…………………………………………………………………33
第九章 非圆齿轮传动的运动仿真……………………………………………34
9.1运动学仿真的概念…………………………………………………………34
9.2非圆齿轮机构无级变速的运动学方程………………………………………34
9.3 两级非圆齿轮传动的运动分析……………………………………………36
9.4非圆齿轮传动装置的运动分析……………………………………………38
第十章 技术经济意义分析及改进意见………………………………………………44
第十一章 结论…………………………………………………………………………45
致谢 …………………………………………………………………………………46
参考文献………………………………………………………………………………47
