S曲线无碳小车毕业设计沈阳工程学院.docx

S曲线无碳小车毕业设计沈阳工程学院.docx

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S曲线无碳小车毕业设计沈阳工程学院

S曲线无碳小车设计

I

摘要

S曲线无碳小车来自全国大学生工程训练综合能力竞赛命题，本文通过认

真分析任务要求，确定小车应有的功能，完成了方案设计、技术设计和加工装

配调试三个阶段，制作出了行驶平稳轻巧，效率高且转弯半径、周期可调的小

车，并提出了提高零件精度和增加赛道校准装置的改进方向。

在方案设计中，根据功能性需求，小车按模块化设计可分为六个部分：

车

架、原动机构、传动机构、转向机构、驱动系统、微调机构，对每个部分采用

扩展性思维寻求多种可行方案，并综合考虑功能实现、加工装配、成本可行性

等因素进行优化设计。

其中，车架为骨架式玻纤板，原动机构采用滑轮组和变径绕线轴、转向机

构采用关节轴承连接的曲柄连杆机构、驱动系统采用单轮差速、微调机构采用

细螺纹调节摇杆与连杆长度以及微调圆盘调节曲柄长度。

在技术设计中，采用现代机械设计方法，通过MATLAB建模做能耗规律

和运动学分析，设计关键参数，并使用SolidWorks仿真分析，绘制图纸。

关键词模块化设计，matlab建模，solidworks仿真，曲柄连杆机构，单轮差

速

沈阳工程学院毕业设计（论文）

II

Abstract

Thenon-carboncarofScurveisfromthenationalcomprehensiveability

trainingcontestofcollegestudentsofengineering,inthispaper,throughcareful

analysisofmissionrequirements,thecar'sfunctionisdetermined.Itcompletedthe

threephaseoftechnicaldesignandassemblydesign,debugging,producedastable

runninglightweight,highefficiencyandturningradius,adjustablecyclecart,and

putforwardtheimprovementdirectionofimprovingtheaccuracyofpartsand

addingthetrackcalibrationdevice.

Inthedesignofthescheme,concerningthefunctionalrequirements,according

tothemodulardesigning,thecarcanbedividedintosixparts:

frame,driving

mechanism,transmissionmechanism,asteeringmechanism,drivingsystem,

adjustmentmechanism.Foreachpart,itusedtheextendedthinkingtoseeka

varietyofoptions,andconsiderfactors,suchastherealizationofthefunction,

processingandassembling,costandfeasibility,tooptimizethedesign.

Amongthem,theframeisframetypeofglassplate,drivingmechanismadopts

groupandvariablediameterpulleyspool,thesteeringmechanismadoptsacrank

connectingrodmechanism,connectedbyjointbearing,drivingsystemhasa

differentialsinglewheel,adjustingmechanismusesfinethreadtoadjustthelength

ofrockerandtheconnectingrod,andthetrimmingdisctoadjustcranklength.

Inthetechnicaldesign,usingthemoderndesignmethod,itmadeenergy

consumptionanalysisoflawandkinematicsbytheMATLABmodeling,designed

keyparameters,thendidSolidWorkssimulation,andproduceddrawings.

KeyWordsmodulardesigning,matlabmodeling,SolidWorkssimulation,crank

connectingrodmechanism,singledifferentialwheel

S曲线无碳小车设计

III

摘要........................................................................................................................I

Abstract.................................................................................................................II

1绪论...............................................................................................................-1-

1.1小车的设计要求...............................................................................-1-

1.2小车的设计方法...............................................................................-2-

2方案设计.......................................................................................................-4-

2.1车架...................................................................................................-7-

2.2原动机构...........................................................................................-7-

2.3传动机构.........................................................................................-10-

2.4转向机构.........................................................................................-13-

2.5驱动系统.........................................................................................-15-

2.6微调机构.........................................................................................-18-

3技术设计.....................................................................................................-20-

3.1数学模型的建立及参数确定.........................................................-20-

3.1.1能耗规律模型.....................................................................-20-

3.1.2运动学分析模型.................................................................-23-

3.1.3确定零件尺寸.....................................................................-27-

3.2零部件设计.....................................................................................-29-

3.2.1标准件及材料明细表.........................................................-29-

沈阳工程学院毕业设计（论文）

IV

3.2.2需加工的零件......................................................................-30-

3.3整体设计.........................................................................................-31-

3.3.1整体装配图.........................................................................-31-

3.3.2小车运动仿真分析.............................................................-33-

4小车的加工、装配和调试.........................................................................-34-

4.1小车零件的加工.............................................................................-34-

4.2小车的装配.....................................................................................-35-

4.3小车调试.........................................................................................-36-

5评价分析及总结.........................................................................................-37-

5.1小车设计结果.................................................................................-37-

5.2小车设计的优缺点.........................................................................-37-

5.3改进方向..................................