哈工大带传动电算

1、Harbin Institute of Technology上机电算说明书课程名称： 机械设计 电算题目： V带传动电算 院 系： 机电学院 班 级： 设 计 者： 贾俊伟 学 号： 指导教师： 吴伟国 设计时间： 2014.11.11 哈尔滨工业大学目录一、普通V带传动的内容和任务1二、变量标识符1三、程序框图2四、V带设计C程序3五、程序运行截图10六、设计总结13七、参考文献13一、普通V带传动的内容和任务给定原始数据：传递的功率P，小带轮转速 n1 传动比i及工作条件设计内容：带型号，基准长度Ld，根数Z，传动中心距a，带轮基准直径dd1、dd2，带轮轮缘宽度B，初拉力F0和压轴力Q1

2、、编制V带传动设计程序框图；2、编制V带传动设计源程序；3、按习题或作业中数据运行程序，验证程序的使用性。二、变量标识符表1 变量标识符表序号名称代号标识符单位1名义功率PPkW2设计功率PdPdkW3工作情况系数KAKA4小带轮转速n1n1r/min5工作机载荷特性GZJ6原动机类型YDJ7带型号Z、AETYPE8小带轮基准直径dd1dd1mm9大带轮基准直径dd2dd2mm10最小带轮直径ddminddMINmm11带速Vm/s12最大带速VMAXm/s13中心距aamm14基准长度LdLdmm15小带轮包角ALF1度16 V带根数ZZ17额定功率P0P0kW18功率增量DIFP0kW19

3、弯曲影响系数KbKb20传动比系数KiKi21长度系数KLKL22包角系数KALF23初拉力F0F0N24压轴力QQN25圆周率PAI三、程序框图图1 V带设计程序框图a1=0.7(dd1+dd2)，a2=2(dd1+dd2)输入初估中心距a0,计算 Ld0Add2= 查标准带轮直径表确定dd2YVVmax ?根据型号确定最大带速Vmax，额定功率P0中系数K1,K2,K3，弯曲影响系数KbV=输出该型号带轮系列直径，选择输入小带轮基准直径dd1输入带型号查表求传动比系数Ki查KA, 计算Pd，选型查表求KA, 计算Pd输入P, n1, i输入各原始数据开始减小直径B查标准长度确定Ld，同时查

4、取KL，计算实际中心距aA计算小带轮包角查表确定包角系数计算Po，Z10 ?计算Fo, Q,B ( 取整)输出结果计算下一型号带 ？结束计算下一种带轮直径？YYYNNNNB四、V带设计c程序#include#include#define PAI 3.main()int i1,j1,i2,i3,i4,i5,i6,l1,l2,l3,xz1,xz2,counter=0;int n1,YDJ,TYPE,GZJ,TIME,GZHJ,dd1,dd2,Ld,Z;int DDMIN6=50,75,125,200,355,500; int JZDC30;int GS30;int XDd30;int DDd30;

5、 int VMAX6=25,25,25,25,30,30;int DD619=50,63,71,75,80,90,100,112,125,132,140,150,160,180,200,224,250,280,315,75,80,85,90,100,106,112,118,125,132,140,150,160,180,200,224,250,280,315,125,132,140,150,160,170,180,200,224,250,280,315,355,400,450,500,500,500,500,200,212,224,236,250,265,280,315,355,400,450

6、,500,500,500,500,500,500,500,500,355,375,400,425,450,475,500,530,600,600,600,600,600,600,600,600,600,600,600,500,530,560,600,630,710,710,710,710,710,710,710,710,710,710,710,710,710,710; int LD24=400,450,500,560,630,710,800,900,1000,1120,1250,1400,1600,1800,2000,2240,2500,2800,3450,3550,4000,4500,500

7、0;float P,Pd,KA,KL,V,a0,a,Ld0,ALF1,P0,DIFP0,Ki,Kb,KALF,F0,Q,B,i,dd2x,amax,amin,z0;float e6=12,15,19,25.5,37,44.5;float f6=8,10,12.5,17,23,29;float KB6=0.,0.,0.,0.,0.01995,0.03735;float KL0246=0.87,-10,-10,-10,-10,-10,0.89,-10,-10,-10,-10,-10,0.91,-10,-10,-10,-10,-10,0.94,-10,-10,-10,-10,-10,0.96,0.8

8、1,-10,-10,-10,-10,0.99,0.83,-10,-10,-10,-10,1.00,0.85,0.82,-10,-10,-10,1.03,0.87,0.84,0.83,-10,-10,1.06,0.89,0.86,0.86,0.83,-10,1.08,0.91,0.88,0.88,0.86,-10,1.10,0.93,0.90,0.91,0.89,-10,1.14,0.96,0.92,0.93,0.91,-10,1.16,0.99,0.95,0.95,0.93,-10,1.18,1.01,0.98,0.97,0.96,-10,20,1.03,1.00,0.99,0.98,-10,

9、20,1.06,1.03,1.02,1.00,-10,20,1.09,1.05,1.04,1.03,-10,20,1.11,1.07,1.07,1.06,-10,20,1.13,1.09,1.09,1.08,-10,20,1.17,1.13,1.12,1.11,-10,20,1.19,1.15,1.15,1.14,-10,20,20,1.18,1.18,1.17,-10,20,20,20,1.21,1.20,-10;float K16=0.246,0.449,0.794,1.48,3.15,4.57;float K26=7.44,19.02,50.6,143.2,507.3,951.5;flo

10、at K36=0.441,0.765,1.31,2.34,4.77,7.06;float M6=0.06,0.1,0.17,0.3,0.6,0.9;float KA143=1.0,1.1,1.2,1.1,1.2,1.3,1.2,1.3,1.4,1.3,1.4,1.5;float KA243=1.1,1.2,1.3,1.2,1.3,1.4,1.4,1.5,1.6,1.5,1.6,1.8;float KALFS14=1.2,1.15,1.1,1.05,1,0.98,0.95,0.92,0.89,0.86,0.82,0.78,0.73,0.68;float alf14=220,210,200,190

11、,180,170,160,150,140,130,120,110,100,90;float i010=1,1.02,1.05,1.09,1.13,1.19,1.25,1.35,1.52,2; float KI9=1,1.0136,1.0276,1.0419,1.0567,1.0719,1.0875,1.1036,1.1202;float ZXJ30;float CLL30;float YZL30;float LYKD30;char type=Z,A,B,C,D,E;char DXH30; printf(-n);printf( Welcome to use the V belt design p

12、rogram n);printf(n);printf(n);printf(n);printf(n);printf( The designer：(贾俊伟 ) n);printf(-n);printf(n);printf(输入基本数据:n); printf(n);printf(1、传动的名义功率P（单位kw）:n); scanf(%f,&P); printf(n);printf(2、小带轮转速n1（单位r/min）:n);scanf(%d,&n1); printf(n);printf(3、第一级传动比i:n);scanf(%f,&i); printf(n);printf(4、原动机类型:n);pr

13、intf(0: I类-普通鼠笼式电机，同步电机，直流电动机（并激），600r/min内燃机。n);printf(1: II类-交流电动机（双鼠笼式，滑环式，单项，大转差率），直流电动机（复激、串激），单缸发动机，n600r/min内燃机。n);scanf(%d,&YDJ); printf(n);printf(5、工作机载荷情况:n);printf(0: 载荷平稳。n);printf(1: 载荷变动小。n);printf(2: 载荷变动大。n);printf(3: 载荷变动很大。n);scanf(%d,&GZJ); printf(n);printf(6、输入工作时间:n);printf(0: 1

14、6h（三班制）n);scanf(%d,&TIME); printf(n);printf(7、工作机工作环境:n);printf(0: 室外有尘、不需要反复起动n);printf(1: 室内清洁、反复起动、正反转频繁等n);scanf(%d,&GZHJ); printf(n);printf(n); if(YDJ=0) if (GZHJ=1) KA=KA1GZJTIME; else KA=KA1GZJTIME*1.1; elseif (GZHJ=1) KA=KA2GZJTIME; else KA=KA2GZJTIME*1.1; Pd=KA*P;doprintf(_n);printf( 根据以上数据

15、求得：n);printf( 设计功率Pd=%f KWn,Pd);printf( 小带轮转速n1=%d r/minn,n1);printf(_n); printf(8、请根据Pd与n1要求，选择合适的V带类型:n);printf(0: Z型n);printf(1: A型n);printf(2: B型n);printf(3: C型n);printf(4: D型n);printf(5: E型n);scanf(%d,&TYPE);if(TYPE=0)l1=18;else if(TYPE=1)l1=18;else if(TYPE=2)l1=15;else if(TYPE=3)l1=11;else if(

16、TYPE=4)l1=8;elsel1=5;dododoprintf(9、请选择小带轮直径:n);i1=0;for(;i1l1+1;)for(j1=0;(j15)&(i1l1+1);j1+,i1+)printf(%d,DDTYPEi1);printf(n);scanf(%d,&dd1);dd2x=i*dd1;if(dd2xDDTYPE18);for(i2=0;i219;i2+)if(DDTYPEi2(dd2x-DDTYPEi2-1)l2=i2-1;elsel2=i2;break;dd2=DDTYPEi2;printf(所匹配的大带轮直径为:%dmmn,dd2); printf(最大带速Vmax=

17、%dm/sn,VMAXTYPE);V=PAI*dd1*n1/60/1000;printf(传送带的速度为v=%fm/s（一般5m/s为宜。）n,V);if(VVMAXTYPE);amin=0.7*(dd1+dd2); amax=2*(dd1+dd2);printf(n);printf(n);printf(请在%fmm%fmm范围内选择合适的中心距:n,amin,amax);scanf(%f,&a0);Ld0=2*a0+PAI/2*(dd1+dd2)+pow(dd2-dd1),2)/(4*a0);for(i3=0;i324;i3+)if(LDi3(Ld0-LDi3-1)l3=i3-1;elsel

18、3=i3;break;KL=KL0l3TYPE;if(KL0);else if(KL20)dol3=l3-1;KL=KL0l3TYPE;while(KL20);Ld=LDl3;printf(-n);printf( 计算结果：n);printf( 基准长度Ld=%d mmn,Ld);printf( 长度系数Kl=%fn,KL);a=a0+(Ld-Ld0)/2; printf( 实际中心距a=%f mmn,a);ALF1=180-(dd2-dd1)/a*57.3;for(i4=0;i414;i4+)if(ALF1=2)Ki=1.1373;elsefor(i5=0;i510;i5+)if(i0i5i

19、)continue;Ki=KIi5-1;break;Kb=KBTYPE;DIFP0=Kb*n1*(1-1/Ki);printf( 功率增量为:%f Wn,DIFP0); z0=Pd/(P0+DIFP0)/KALF/KL;for(i6=0;i610;i6+)if(i6(z0-(i6-1)Z=i6-1;elseZ=i6;break;printf( 应选用带的根数Z=%dn,Z);F0=500*Pd/Z/V*(2.5-KALF)/KALF)+MTYPE*pow(V,2);printf( 初拉力F0=%f Nn,F0);Q=2*Z*F0*sin(ALF1/180/2*PAI);printf( 压轴力Q=%f Nn,Q);B=(Z-1)*eTYPE+2*fTYPE;printf( 轮缘宽度B=%f mmn,B);printf(n);DXHcounter=typeTYPE;JZDCcounter=Ld;GScounter=Z