牛头刨床毕业设计全套
牛头刨床毕业设计全套,牛头,刨床,毕业设计,全套
机械原理课程设计说 明 书设计题目:牛头刨床传动机构设计及其运动分析机电学院 班 学号 设计者 指导教师 2007年6月21日(1)机构运动简图及原始数据和要求:牛头刨床传动机构示意图: 原始数据:齿轮转速n1(rpm)模数m(mm)齿数Z1齿数Z2距离L1(mm)滑枕冲程H(mm)行程数比系数K距离L2(mm)中心距O2O3230615551765001.65360350(2)设计过程及主要计算结果:由K=(180+)/(180-)=1.65 得:=180(K-1)/(K+1)=44.15由=(180-)/2=67.92 及cos= O2A/O2O3 得:O2A=131.54由sin(90-)=0.5H/O3B 得:O3B=665.20又由机构分析得S=-Lo3b*sin(j2) w1=2*PI*n1/(60) w2=w1*z1/z2 w3=Lo2a*w2*cos(j1-j2)/Lo3a V=-w3*Lo3b*cos(j2) Va=-Lo2a*w2*sin(j1-j2) aj=-(2*Va*w3+Lo2a*w2*w2*sin(j1-j2)/Lo3a at=Lo3b*aj*cos(j2) an=Lo3b*w3*w3*sin(j2) a=an-at可得出机构刨刀滑枕位移s速度v及加速度a。(3)计算原程序及注释:#include #include #define PI 3.1415926int i;float n1=230,m=6,z1=15,z2=55,L1=176,H=500,K=1.65,L2=360,Lo23=350,Lo3b=665.20,Lo2a=131.54;/*定义参数*/float j1,j2,tanj2,S,Lo2a,Lo3b,Lo3a,w1,w2,w3,V,Va,aj,at,an,a;/*定义变量(这里设O3A与Y轴夹角为角1,O3A与Y轴夹角为角2)*/PRINT(float j1) FILE *fp; fp=fopen(d:NTB5.txt,a); tanj2=(Lo2a*sin(j1)/(Lo23+Lo2a*cos(j1); j2=atan(tanj2); /*求解角2*/ Lo3a=sqrt(Lo23+Lo2a*cos(j1)*(Lo23+Lo2a*cos(j1)+(Lo2a*sin(j1)*(Lo2a*sin(j1); S=-Lo3b*sin(j2); w1=2*PI*n1/(60); w2=w1*z1/z2; w3=Lo2a*w2*cos(j1-j2)/Lo3a; /*求解O1.O2.O3角速度*/ V=-w3*Lo3b*cos(j2); /*求解刨刀速度*/ Va=-Lo2a*w2*sin(j1-j2); /*滑块A的法向速度*/ aj=-(2*Va*w3+Lo2a*w2*w2*sin(j1-j2)/Lo3a; /*滑块A的法向加速度*/ at=Lo3b*aj*cos(j2); /*滑块B的切向加速度*/ an=Lo3b*w3*w3*sin(j2); /*滑块B的法向加速度*/ a=an-at; /*刨刀的加速度*/ printf(%2d%12.3f%16.3f%16.3f%16.3fn,i,j1/PI*180,S,V,a); fprintf(fp,%2d%12.3f%18.3f%18.3f%18.3fn,i,j1/PI*180,S,V,a); fclose(fp); main() FILE *fp; if(fp=fopen(d:NTB5.txt,w+)=NULL) exit(0); printf( NO:t j1tt Stt Vtt ann); for(j1=0,i=1;j1=2*PI;j1=j1+(10*PI/180),i+) /*随角1变化定义循环*/ PRINT(j1); if(i%20=0) system(pause); fclose(fp); system(pause); (4)程序运行结果及图表分析:系列 角度 位移 (mm) 速度(mm/s) 加速度(mm/s2)1 0.000 -0.000 -1193.611 0.000 2 10.00 -31.649 -1186.250 554.774 3 20.000 -62.906 -1164.052 1118.385 4 30.000 -93.372 -1126.651 1700.996 5 40.000 -122.636 -1073.379 2315.608 6 50.000 -150.262 -1003.161 2979.941 7 60.000 -175.780 -914.367 3718.907 8 70.000 -198.666 -804.569 4567.833 9 80.000 -218.318 -670.223 5576.40110 90.000 -234.020 -506.229 6812.47911 100.00 -244.894 -305.427 8362.83612 110.000 -249.840 -58.197 10322.22013 120.000 -247.470 247.287 12750.26814 130.000 -236.077 622.807 15555.74415 140.000 -213.705 1073.216 18256.81816 150.000 -178.519 1581.651 19648.85917 160.000 -129.655 2088.243 17756.87318 170.000 -68.554 2480.597 10913.57619 180.000 -0.000 2631.014 0.02620 190.000 68.554 2480.598 -10913.53421 200.000 129.655 2088.246 -17756.85522 210.000 178.519 1581.653 -19648.86323 220.000 213.705 1073.218 -18256.82824 230.000 236.077 622.808 -15555.75325 240.000 247.470 247.288 -12750.27626 250.000 249.840 -58.196 -10322.22627 260.000 244.894 -305.427 -8362.84128 270.000 234.020 -506.229 -6812.48329 280.000 218.318 -670.223 -5576.40430 290.000 198.666 -804.568 -4567.83631 300.000 175.780 -914.366 -3718.91032 310.000 150.262 -1003.161 -2979.94433 320.000 122.636 -1073.379 -2315.61034 330.000 93.373 -1126.651 -1700.99835 340.000 62.906 -1164.052 -1118.38736 350.000 31.649 -1186.250 -554.77637 360.000 0.000 -1193.611 -0.002运行结果的图表分析:(5)图解法检验: 取3个位置分别为1=0,90, 40,分别用图解法求位移,速 度,加速度,如图,经检验,所得结果与上述结果在允许误差范 围内一致,故结果正确。
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