机械原理课程设计牛头刨床机构.docx

1、机械原理课程设计牛头刨床机构,cx = Val(InputBox(请输入齿轮的顶隙系数)t = 180# / pialp = alpha / t 角度转化成弧度End SubPrivate Sub Command3_Click()d1 = m * z1d2 = m * z2,x1 = (17 - z1) / 17x2 = 0 - x1ha1 = (hax + x1) * mha2 = (hax + x2) * mhf1 = (hax + cx - x1) * mhf2 = (hax + cx - x2) * mh1 = (2 * hax + cx) * mh2 = (2 * hax + cx)

2、 * m？da1 = d1 + 2 * ha1da2 = d2 + 2 * ha2df1 = d1 - 2 * hf1df2 = d2 - 2 * hf2a = * m * (z1 + z2)db1 = d1 * Cos(alp)db2 = d2 * Cos(alp)alpa1 = Atn(Sqr(da1 / 2) 2 - (db1 / 2) 2) / (db1 / 2) 计算齿顶1的圆压力角alpa2 = Atn(Sqr(da2 / 2) 2 - (db2 / 2) 2) / (db2 / 2) 计算齿顶2的圆压力角e = (z1 * (Tan(alpa1) - Tan(alp) + z2

3、* (Tan(alpa2) - Tan(alp) / (2 * pi) 计算重合度s1 = pi * m / 2 + 2 * x1 * m * Tan(alp)s2 = pi * m / 2 + 2 * x2 * m * Tan(alp)sa1 = s1 * da1 / d1 - 2 * da1 / 2 * (Tan(alpa1) - alpa1 - Tan(alp) + alp)sa2 = s2 * da2 / d2 - 2 * da2 / 2 * (Tan(alpa2) - alpa2 - Tan(alp) + alp) = d1 = d2， = x1 = x2 = ha1 = ha2 =

4、 hf1 = hf2 = h1 = h2） = da1 = da2 = df1 = df2 = a = a = e = e% = s1 = s2 = sa1 = sa2End SubPrivate Sub Command4_Click()If sa1 = * m And sa2 = * m And e = Then.MsgBox 此对齿轮的平稳性及齿顶强度均符合要求, , 齿轮校核MsgBox 请记录数据ElseMsgBox 请重新设计齿轮参数, , 齿轮校核z1 = 0z2 = 0m = 0alpha = 0】hax = 0cx = 0 = = = = = = | = = = = = = =

5、 = - = = = = = = = = 、End IfEnd SubPrivate Sub Command5_Click()Unload MeEnd SubPrivate Sub Form_Load()，End Sub）2、运行结果：￥!附2：导杆机构设计的源程序及运行结果1、源程序：% 导杆的运动分析fi1=0:2*pi; %曲柄的角位移l6=350; %机架长度l1=l6*sin(18*pi/180); %曲柄长度l3=450/(2*sin(18*pi/180); %导杆的长度n1=260; z1=14;z2=56;n2=z1*n1/z2;w1=n2*pi/60; %曲柄的角速度hold

6、 onaxis equal axis autofor fi1=0:pi/2;:fi3=(atan(l6+l1*sin(fi1)./(l6*cos(fi1); %导杆的角位移s3=(l1*cos(fi1)./cos(fi3); %滑块A的位移w3=l1.*cos(fi1-fi3)./s3; %导杆的角速度v=-l1*w1.*sin(fi1-fi3); %滑块A的速度e3=(l1*w1.2.*sin(fi3-fi1)-2*w3.*v)./(s3); %导杆的角加速度ad=l3*e3.*sin(fi3)+l3*w3.2.*cos(fi3); %刨刀的加速度plot(fi1,fi3;w3;e3,lin

7、ewidth,1) %绘制导杆的（角）位移、速度及加速度与时间的关系end：hold on for fi1=pi/2:3*pi/2;fi3=(atan(l6+l1*sin(fi1)./(l6*cos(fi1);s3=(l1*cos(fi1)./cos(fi3);w3=l1.*cos(fi1-fi3)./s3;v=-l1*w1.*sin(fi1-fi3);e3=(l1*w1.2.*sin(fi3-fi1)-2*w3.*v)./(s3);plot(fi1,fi3;w3;e3,linewidth,1) %绘制导杆的（角）位移、速度及加速度与时间的关系 ）endfor pha1=3*pi/2:2*pi

8、fi3=(atan(l6+l1*sin(fi1)./(l6*cos(fi1);s3=(l1*cos(fi1)./cos(fi3);w3=l1.*cos(fi1-fi3)./s3;v=-l1*w1.*sin(fi1-fi3);e3=(l1*w1.2.*sin(fi3-fi1)-2*w3.*v)./(s3);plot(fi1,fi3;w3;e3,linewidth,1) %绘制导杆的（角）位移、速度及加速度与时间的关系！endlegend(3,3,3)xlabel(1)ylabel(3 3 3 )2、运行结果;/附3：导杆机构设计的源程序及运行结果1、源程序% 刨头的运动分析】fi1=0:2*pi

9、; %曲柄的角位移l6=350; %机架长度l1=l6*sin(18*pi/180); %曲柄长度l3=450/(2*sin(18*pi/180); %导杆的长度n1=260; z1=14;z2=56;n2=z1*n1/z2;w1=n2*pi/60; %曲柄的角速度hold onaxis autofor fi1=0:pi/2;fi3=(atan(l6+l1*sin(fi1)./(l6*cos(fi1); %导杆的角位移s3=(l1*cos(fi1)./cos(fi3); %滑块A的位移w3=l1.*cos(fi1-fi3)./s3; %导杆的角速度v=-l1*w1.*sin(fi1-fi3);

10、 %滑块A的速度e3=(l1*w1.2.*sin(fi3-fi1)-2*w3.*v)./(s3); %导杆的角加速度v5=l3.*w3; sd=l3.*sin(fi3); %刨刀的位移vd=v5.*sin(fi3);%刨刀的速度ad=l3*e3.*sin(fi3)+l3*w3.2.*cos(fi3); %刨刀的加速度plot(fi1,sd,linewidth,1);hold onplot(fi1,vd,r-,linewidth,2);，hold onplot(fi1,ad,linewidth,3);endhold on for fi1=pi/2:3*pi/2;fi3=(atan(l6+l1*s

11、in(fi1)./(l6*cos(fi1);s3=(l1*cos(fi1)./cos(fi3);w3=l1.*cos(fi1-fi3)./s3;v=-l1*w1.*sin(fi1-fi3);e3=(l1*w1.2.*sin(fi3-fi1)-2*w3.*v)./(s3);v5=l3.*w3; sd=l3.*sin(fi3); %刨刀的位移vd=v5.*sin(fi3);%刨刀的速度ad=l3*e3.*sin(fi3)+l3*w3.2.*cos(fi3); %刨刀的加速度plot(fi1,sd,linewidth,1);hold on】plot(fi1,vd,r-,linewidth,2);ho

12、ld onplot(fi1,ad,linewidth,3);endfor pha1=3*pi/2:2*pifi3=(atan(l6+l1*sin(fi1)./(l6*cos(fi1);s3=(l1*cos(fi1)./cos(fi3);w3=l1.*cos(fi1-fi3)./s3;？v=-l1*w1.*sin(fi1-fi3);e3=(l1*w1.2.*sin(fi3-fi1)-2*w3.*v)./(s3);v5=l3.*w3; sd=l3*sin(fi3); %刨刀的位移vd=v5.*sin(fi3);%刨刀的速度ad=l3*e3.*sin(fi3)+l3*w3.2.*cos(fi3); %刨刀的加速度plot(fi1,sd,linewidth,1);hold on【plot(fi1,vd,r-,linewidth,2);hold onplot(fi1,ad,linewidth,3);endlegend(位移,速度,加速度)xlabel(1)ylabel(Sd Vd Ad )2、运行结果