压床齿轮机构的设计(Ⅰ)

机械原理课程设计编写说明书设计题目：压床齿轮机构的设计(Ⅰ)1目录1.设计任务及要求………………22.数学模型的建立………………23.程序框图………………………54.程序清单及运行结果…………75．设计总结………………………156.参考文献………………………157.中期检查报告…………………1621.设计任务及要求已知:齿轮5,,38,112065moZZ模数分度圆压力角,齿轮为正常齿制，工作情况为开式传动，齿轮Z6与曲柄共轴。要求：1）编写程序计算A.中心距a（圆整尾数为5或0或双数）；B.啮合角；C.按小轮不发生根切为原则分配变位系数ｘ、65x；D.计算基圆直径，、节圆直径、，分度圆直径、ｂdididdddb656565,，齿顶圆齿厚，基圆齿厚、分度圆齿厚、SSSSbb6565，、SSaa65节圆展角；E.重合度;2）计算出齿形曲线，在3号图纸上绘制齿轮传动的啮合图。3）编写出计算说明书。2.数学模型1)注：下列尺寸单位为mm齿轮基本参数：齿数：Z5=11Z6=38模数：m=5压力角：20o3齿顶高系数：0.1*ha齿根高系数：25.0*c2)实际中心距a／的确定：2)(65zzma；a／=（a/5+1）5；3)啮合角/：；)cos(2)()cos(/65/zzminvinvzzxx)/()(tan26565,；分度圆分离系数：)1coscos)((21,65azzy分度圆直径；zdm55zdm66基圆直径；cos55zdmbcos66zdmb节圆直径：addi,55coscosaddi,66coscos4)按小轮不发生根切为原则分配变位系数ｘ、65x；zzzhxamin5minmin5/)(；；4zzzhxamin6minmin6/)(；tan2))((65/65zzxxinvinv齿顶高变动系数：yxx65齿顶高：)(5*5xhhaam)(6*6xhhaam齿根高：)(5**5xchhafm)(6**6xchhafm齿顶圆直径：hddaa5552hddaa6662齿根圆直径；hddff5552hddff6662分度圆齿厚：tan22155mmxs基圆齿厚tan22166mmxs：;2;26616666655155555coscosinvinvinvinvddrrrSSddrrrSSbbbbbbbbbb5齿顶厚：)(2555555invinvaaaarrrss)(2666666invinvaaaarrrss一般取25.0sa基圆展角：;66tan;55tan/61/616/51/515coscoscoscosddddddddbbbb5)重合度：)]tan(tan)tan(tan[21,66,55aazz)/(5515cosddaba)/(6616cosddaba20,o一般情况应保证2.13程序框图输入mz5z6ha*c*计算Xmin5Xmin66Yx5﹤Xmin5x6﹤Xmin6N计算aayd5d6db5db6d5d6计算ha5ha6hf5hf6da5da6s5s6sb5sb6sa5sa656Ysa﹤0.25mN计算Y﹤1.2N计算ha5ha6hf5hf6da5da6s5s6sb5sb6sa5sa65674.程序清单及运行结果(1)程序清单#includemath.h#includestdio.h#definez511.0#definez638.0#definet20*3.14/180/*yalijiao,unit:rad*/#definem5/*moshu*/#definehax1.0#definecx0.25#defineZmin17.0#definepi3.14main(){inta,ai;doubleti;/*niehejiao*/doublex5,x6,xh;doubledb5,db6;/*jiyuanzhijing*/doubled5,d6;/*fenduyuanzhijing*/doubleha5,ha6;/*chidinggao*/doublehf5,hf6;/*chigengao*/doubledf5,df6;/*chigenyuanzhijing*/doubledi5,di6;/*jieyuanzhijing*/8doubleda5,da6;/*chidingyuanzhijing*/doubleS5,S6;/*chihou*/doubleSb5,Sb6;/*jiyuanchihou*/doubleSa5,Sa6;/*chidingyuanchihou*/doubleo5,o6;/*jieyuanzhanjiao*/doublee;/*chonghedu*/doubley;/*fenduyuanfenlixishu*/doubleXmin5,Xmin6;/*zuixiaobianweixishu*/doublecdm;/*chidinggaobiandongxishu*/intj,i;a=m*(z5+z6)/2;printf(a=%d\n,a);i=a/5;ai=(i+1)*5;printf(ai=%d(mm)\n,ai);ti=acos(a*cos(t)/ai);printf(ti=%4.3f(rad)\n,ti);y=0.5*(z5+z6)*(cos(t)/cos(ti)-1);printf(y=%5.3lf\n,y);d5=m*z5;d6=m*z6;printf(d5=%5.3lf,d6=%5.3lf(mm)\n,d5,d6);db5=m*z5*cos(t);db6=m*z6*cos(t);printf(db5=%5.3lf,db6=%5.3lf(mm)\n,db5,db6);9di5=d5*cos(t)/cos(ti);di6=d6*cos(t)/cos(ti);printf(di5=%5.3lf,di6=%5.3lf(mm)\n,di5,di6);Xmin5=hax*(Zmin-z5)/Zmin;printf(Xmin5=%3.4lf(mm)\n\n,Xmin5);Xmin6=hax*(Zmin-z6)/Zmin;printf(Xmin6=%3.4lf(mm)\n\n,Xmin6);xh=0.5*(tan(ti)-ti-(tan(t)-t))*(z5+z6)/tan(t);printf(xh=x5+x6=%5.3f\n,xh);for(j=0;j10;j++){x5=Xmin5+0.04*j;x6=xh-x5;if(x6Xmin6)break;cdm=x5+x6-y;ha5=m*(hax+x5-cdm);ha6=m*(hax+x6-cdm);hf5=(hax+cx-x5)*m;hf6=(hax+cx-x6)*m;da5=d5+2*ha5;10da6=d6+2*ha6;df5=d5-2*hf5;df6=d6-2*hf6;S5=0.5*pi*m+2*x5*m*tan(t);S6=0.5*pi*m+2*x6*m*tan(t);Sb5=S5*db5/d5-db5*(tan(acos(db5/db5))-acos(db5/db5)-(tan(t)-t));Sb6=S6*db6/d6-db6*(tan(acos(db6/db6))-acos(db6/db6)-(tan(t)-t));Sa5=S5*da5/d5-da5*(tan(acos(db5/da5))-acos(db5/da5)-(tan(t)-t));Sa6=S6*db6/d6-da6*(tan(acos(db6/da6))-acos(db6/da6)-(tan(t)-t));o5=tan(acos(db5/di5))-acos(db5/di5);o6=tan(acos(db6/di6))-acos(db6/di6);e=(z5*(tan(acos(db5/da5))-tan(ti))+z6*(tan(acos(db6/da6))-tan(ti)))/(2*pi);if((S5cx*m)&&(S6cx*m)&&(Sb5cx*m)&&(Sb6cx*m)&&(Sa5cx*m)&&(Sa6cx*m)&&(e1.2)){printf(x5=%5.3lf,x6=%5.3lf(mm)\n,x5,x6);11printf(cdm=%5.3lf\n,cdm);printf(ha5=%5.3lf,ha6=%5.3lf(mm)\n,ha5,ha6);printf(hf5=%5.3lf,hf6=%5.3lf(mm)\n,hf5,hf6);printf(da5=%5.3lf,da6=%5.3lf(mm)\n,da5,da6);printf(df5=%5.3lf,df6=%5.3lf(mm)\n,df5,df6);printf(S5=%5.3lf,S6=%5.3lf(mm)\n,S5,S6);printf(Sb5=%5.3lf,Sb6=%5.3lf(mm)\n,Sb5,Sb6);printf(Sa5=%5.3lf,Sa6=%5.3lf(mm)\n,Sa5,Sa6);printf(o5=%6.5lf,o6=%6.5lf(rad)\n,o5,o6);printf(e=%5.31f\n,e);}}}（2）运行结果a=122ai=125(mm)ti=0.410(rad)y=0.602d5=55.000,d6=190.000(mm)db5=51.686,db6=178.553(mm)di5=56.352,di6=194.672(mm)Xmin5=0.3529(mm)Xmin6=-1.2353(mm)12xh=x5+x6=0.654x5=0.353,x6=0.301(mm)cdm=0.052ha5=6.506,ha6=6.248(mm)hf5=4.485,hf6=4.744(mm)da5=68.012,da6=202.495(mm)df5=46.029,df6=180.512(mm)S5=9.134,S6=8.946(mm)Sb5=9.353,Sb6=11.064(mm)Sa5=2.260,Sa6=2.565(mm)o5=0.02459,o6=0.02459(rad)e=1.346x5=0.393,x6=0.261(mm)cdm=0.052ha5=6.706,ha6=6.048(mm)hf5=4.285,hf6=4.944(mm)da5=68.412,da6=202.095(mm)df5=46.429,df6=180.112(mm)S5=9.279,S6=8.800(mm)Sb5=9.489,Sb6=10.927(mm)Sa5=2.109,Sa6=2.652(mm)o5=0.02459,o6=0.02459(rad)e=1.337x5=0.433,x6=0.221(mm)cdm=0.05213ha5=6.906,ha6=5.848(mm)hf5=4.085,hf6=5.144(mm)da5=68.812,da6=201.695(mm)df5=46.829,df6=179.712(mm)S5=9.425,S6=8.655(mm)Sb5=9.626,Sb6=10.790(mm)Sa5=1.953,Sa6=2.738(mm)o5=0.02459,o6=0.02459(rad)e=1.329x5=0.473,x6=0.181(mm)cdm=0.052ha5=7.106,ha6=5.648(mm)hf5=3.885,hf6=5.344(mm)da5=69.212,da6=201.295(mm)df5=47.229,df6=179.312(mm)S5=9.