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基于主减速器的混合动力汽车传动系设计

摘要

汽车工业所带来的能源短缺与环境污染等问题越来越受到世界各国政府的重视。当前，许多国家政府、世界知名的汽车企业和科研机构纷纷研制开发低能耗、低排放，且能满足现代使用性能要求的新型汽车。混合动力电动汽车应运而生。可以断言，使用混合动力电动汽车是解决排污和能源问题最具现实意义的途径之一。本课题对混合动力电动汽车传动传动系统的三种联接方式；串联式，并联式，混联式进行了分析和比较，并以cS6100并联式混合动力电动汽车为研究对象，分析了并联式混合动力电动汽车传动系的结构特点，重点进行了对传动系基本参数的计算与匹配。还对主减速器进行了设计，对其中的齿轮和轴进行了校核，并给出了四张草图；底盘布置图、动力耦合系统主要总成图以及两张动力耦合系统主要零件图。

关键词：并联式混合动力汽车；传动系；主减速器；计算与匹配

DESIGING OF THE POWER TRAIN WHICH BASED ON THE MAIN REDUCER OF HYBRID ELECTRIC VEHICLE

ABSTRACT

     Energy source shortage and environment pollution arising from automobile industry have been given more and more attention all over the world．Development of new type motor vehicle with low energy consumption and emission is being researched by automobile industry and research institute，which is encouraged by government policy．So the hybrid electric vehicle was born．We Can affirm it is the most realistic way to solve the problem of emissions and energy problem．Three basical types of the power train system in hybrid electric vehicle，which are serial，parallel and combined type，were analyzed and compared in this paper．Taking the cs6100 parallel hybrid electric vehicle as the research object,the characteristics of the power train of the hybrid electric vehicle were analyzed．With emphasis，the calculation and parameter selection were performed for power train．The main reducer was designed，the gear and the axis were checked，and also four schematic diagrams were produced，which are chassis general arrangement，dynamic coupling system consists mainly of assembly plans and two pieces of dynamic coupling system parts diagram．

Key words： parallel hybrid electric vehicle； power train； main reducer；
calculation and matching

目  录
      
1  绪论………………………………………………………………………………..1
1.1 混合动力电动汽车的现状与展望………………………………………….1
2  并联式混合动力电动汽车传动系的特点分析…………………………………..6
2.1 传动系简介……………………………………………………………….…6
2.2混合动力汽车传动系的结构特点分析……………………………..……..11
2.3不同种类混合动力电动汽车传动系的比较………………………………18
3  CS6120混合动力汽车传动系参数的设计……………………………...………20
3.1 发动机功率的选择………………………………………………...………20
3.2 电动机参数的选择…………………………………………………..…… 22
3.3 电池组容量的选择…………………….……………………………..……23
3.4 传动比的选择……………………………………………………..…….…25
3.5车辆最高车速的校核…………………………………………..…….…….26
4  主减速器的设计……………………………………………………..…………..27
4.1 主减器的减速型式及选择…………….…………………..………………27
4.2 主减速器速比的确定 …………………………………………………….29
4.3 主减速器齿轮的齿形…………………………………………..………….30
4.4 主减速器的支承………………………………………………….…..……32
4.5 双曲面齿轮的设计……………………………………………….….….…33
4.6 主减速器锥齿轮的强度计算…………………………………..………….38
4.7 主减速器锥齿轮轴承的载荷计算……………………….……….….……41
4.8 主减速器锥齿的材料及热处理……………………………..……….……45
5  设计总结………………………………………………..………………………..46
致谢…………………………………………………………………………….….…47
参考文献……………………………………………………………………..………48