哈工大机械原理大作业凸轮机构设计题.docx

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1、哈工大机械原理大作业凸轮机构设计题 H a r b i n I n s t i t u t e o f T e c h n o l o g y 机械原理大作业二 课程名称： 机械原理 设计题目： 凸轮机构设计 一设计题目 设计直动从动件盘形凸轮机构， 1.运动规律（等加速等减速运动） 推程 0450? 推程 009045? 2.运动规律（等加速等减速运动） 回程 00202260? 回程 00240200? 三推杆位移、速度、加速度线图及凸轮s d ds - 线图 采用VB 编程，其源程序及图像如下： 1.位移： Private Sub Command1_Click() Timer1.Enab

2、led = True 开启计时器 End Sub Private Sub Timer1_Timer() Static i As Single Dim s As Single, q As Single i作为静态变量，控制流程；s代表位移；q代表角度 Picture1.CurrentX = 0 Picture1.CurrentY = 0 i = i + 0.1 If i = 45 And i = 90 And i = 150 And i = 190 And i = 230 And i = 45 And i = 90 And i = 150 And i = 190 And i = 230 And

3、i = 45 And i = 90 And i = 150 And i = 190 And i = 230 And i = 45 And i = 90 And i = 150 And i = 190 And i = 230 And i = 45 And i = 90 And i = 150 And i = 190 And i = 230 And i = 360 Then q = i * t x = 0 s = 0 Picture1.PSet Step(x, -s), vbRed Else End If End Sub 在轴心公共许用区内取轴心位置，能够满足压力角要求，现取直线红线与直线绿线的

4、=146.392 偏距e=131.557 交点为轴心位置，通过解方程组：x=131.557 y=-64.214 r s0=64.013 五绘制凸轮理论廓线和实际廓线 1.绘制凸轮理论轮廓 Private Sub Command6_Click() 开启计时器；建立坐标系 Picture1.Scale (-500, -500)-(500, 500) Timer6.Enabled = True End Sub Private Sub Timer6_Timer() i为静态变量，控制流程；e为偏距；s为基圆半径平方减去偏距平方再开方所得；q为角度；x为横坐标；y为纵坐标 Static i As Single Dim e As Single, q As Single, s As Single, x As Single, y As Single e = 131.557