机械5

本田节能竞技车转向及传动系统设计 摘要 随着人们生活水平的提高，能源节约、环境保护问题日趋严重，人们的关注程度也越来越高。 本文以中国节能竞技车大赛为背景，以本校已有的竞技车为基矗同时整个设计在满足大赛要求的基础上，以省油为主要指导思想，减少竞技车复杂程度和轻量化。本次设计对竞技车的转向系、传动系和离合器进行改进设计。首先对竞技车的总体方案进行了确定。然后对转向机构进行设计，运用CATIA对其进行实体建模，同时利用CATIA的运动仿真对转向系进行了仿真模拟运动，验证了转向机构的合理性。通过对相关期刊的研读，通过其中大量的实车试验数据，确定了传动系传动方案为链传动，也确定了离合器的改进方案。 关键词：转向系；传动系；离合器；CATIA三维建模 ABSTRACT As people's livi
ng sta
ndards improve, e
nergy co
nservatio
n a
nd e
nviro
nme
ntal protectio
n are becomi
ng more a
nd more serious, a
nd people are becomi
ng more a
nd more co
ncer
ned. E
nergy savi
ng i
n Chi
na based o
n competitive car competitio
n as the backgrou
nd, o
n the basis of our existi
ng sports car.At the same time, the whole desig
n is o
n the basis of satisfyi
ng the requireme
nts of the competitio
n, which is the mai
n guidi
ng pri
nciple of oil savi
ng, reduci
ng the complexity a
nd light weight of the competitive vehicle.This desig
n is desig
ned to improve the steeri
ng, tra
nsmissio
n a
nd clutch of competitive vehicles.The paper first ide
ntified the overall scheme of competitive vehicles.A
nd the
n to desig
n of steeri
ng mecha
nism, usi
ng CATIA to e
ntity modeli
ng, at the same time, usi
ng CATIA moveme
nt simulatio
n of steeri
ng system has carried o
n the simulatio
n, the ratio
nality of the steeri
ng mecha
nism was verified.Through the study of related jour
nals, through which a large
number of real vehicle test data, determi
ne the drivetrai
n tra
nsmissio
n scheme for the chai
n, also ide
ntified the improveme
nt scheme of the clutch. Key Words：Write Criterio
n; Typeset Format; Dissertatio
n；CATIA 3 d modeli
ng 目录 摘要I ABSTRACT II 1绪论1 1.1课题研究背景及意义1 1.2国内外发展概况及趋势2 1.3课题的主要研究内容2 2节能竞技车的总体设计方案确定4 2.1总体布置方案的选择4 2.2车架材料的确定6 2.3车辆驱动方式的确定6 2.4车辆转向形式的确定6 2.5车辆车轮的选择8 2.6车架参数的确定和计算8 2.7各总成的相关计算12 2.8整体参数的确定14 2.9本章小结14 3转向机构设计16 3.1汽车转向梯形机构设计理论16 3.2转向梯形参数确定18 3.3转向阻力距计算19 3.4转向装置的设计计算20 3.4转向梯形的仿真20 3.5本章小结21 4传动系设计22 4.1设计理论22 4.2实际传动比的确定22 4.3链传动的选取和设计计算23 4.4本章小结24 5离合器的设计25 5.1离合器的重新设计和选择25 5.2离合器需要传递扭矩的计算25 5.3摩擦片参数与尺寸计算25 5.4离合器弹簧与尺寸计算26 5.5离合器其他参数与尺寸的选用27 5.6设计小结27 6结论28 参考文献29 附录1：外文翻译30 附录2：外文原文34 致谢39