齿轮设计计算(样板)

齿轮传动设计,,,,,

,计算项目,参数,公式,结果,单位

已知：,,,,,

1,额定功率,P,,44.55,kW

2,转速,n1,,1480.00,r/min

3,传动比,i,,4.00,

4,工作条件,,载荷平稳、大批量生产,,

5,工作时间,t,,2.00,班制

6,使用期限,,,10.00,年

1选择齿轮的材料、热处理方式和精度等级,,,,,

1,小齿轮材料,,,40Cr,

2,小齿轮热处理,,调质,50,HRC

3,大齿轮材料,,,40Cr,

4,大齿轮热处理,,正火,50,HRC

5,传动精度等级,,,7,级

2初步确定主要参数,,,,,

1,小齿轮传递转矩,T1,,287467.91,Nmm

2,小齿轮齿数,Z1,,17,

3,大齿轮齿数,Z2,,68,

,,,圆整,68,

4,传动比,i,,4.00,

5,,,误差,0.00%,合格

6,螺旋角,β,,12.00,

7,齿宽系数,Фd,"由p144,表8.6查得",0.50,

8,端面重合度,εα,,1.61,

9,轴面重合度,εβ,,0.57,

3齿根弯曲疲劳强度设计,,,,,

1,使用系数,KA,"由p130,表8.3查得",1.00,

2,动载系数,Kvt,试选,1.20,

3,齿向载荷分布系数,Kβ,"由p132,图8.11查得",1.08,

4,齿间载荷分布系数,Kα,"由p133,表8.4查得",1.20,

5,小齿轮当量齿数,Zv1,,18.17,

6,大齿轮当量齿数,Zv2,,72.66,

7,小齿轮的齿形系数,YF1,"由p139,图8.19查得",2.89,

8,大齿轮的齿形系数,YF2,"由p139,图8.19查得",2.25,

9,小齿轮的应力修正系数,Ys1,"由p139,图8.20查得",1.52,

10,大齿轮的应力修正系数,Ys2,"由p139,图8.20查得",1.77,

11,重合度系数,Yε,"由p140,图8.21查得",0.72,

12,螺旋角系数,Yβ,"由p143,图8.26查得",0.94,

13,小齿轮的弯曲疲劳极限应力,σFlim1,"由p146,图8.28查得",360.00,MPa

14,大齿轮的弯曲疲劳极限应力,σFlim2,"由p148,图8.28查得",360.00,MPa

15,小齿轮应力循环次数,N1,,355.20,107次

16,大齿轮应力循环次数,N2,,88.80,107次

17,寿命系数,YN1,"由p147,图8.30查得",1.00,

18,寿命系数,YN2,"由p147,图8.30查得",1.00,

19,安全系数,SF,"由p147,表8.7查得",1.25,

20,小齿轮的许用弯曲应力,[σ]F1,,288.00,MPa

21,大齿轮的许用弯曲应力,[σ]F2,,288.00,MPa

22,小齿轮的模数,Mn1,,3.99,mm

23,大齿轮的模数,Mn2,,3.86,mm

24,模数,Mn,,3.99,mm

25,小齿轮运动速度,V,,5.37,mm/s

26,动载系数,Kv,"由p131,图8.7查得",1.15,

27,修正模数,Mn,,3.93,mm

28,模数,Mn,"由p124,表8.1查得",4.00,mm

4齿轮参数计算,,,,,

1,中心距,a,,173.80,mm

,,,圆整,175.00,mm

2,螺旋角,β,,13.73,度

3,小齿轮分度圆直径,d1,,70.00,mm

4,大齿轮分度圆直径,d2,,280.00,mm

5,大齿轮宽度,b2,,35.00,mm

,,,圆整,35.00,mm

6,小齿轮宽度,b1,,40.00,mm

5齿面接触疲劳强度校核,,,,,

1,弹性系数,ZE,"由p136,表8.5查得",189.80,

2,节点区域系数,ZH,"由p136,图8.14查得",2.45,

3,重合度系数,Zε,"由p136,图8.15查得",0.84,

4,螺旋角系数,Zβ,"由p142,图8.24查得",0.99,

5,小齿轮的接触疲劳极限应力,σHlim1,"由p146,图8.28查得",1200.00,MPa

6,大齿轮的接触疲劳极限应力,σHlim2,"由p146,图8.28查得",1200.00,MPa

7,寿命系数,ZN1,"由p147,图8.29查得",1.00,

8,寿命系数,ZN2,"由p147,图8.29查得",1.00,

9,安全系数,SH,"由p147,表8.7查得",1.00,

10,小齿轮的许用接触应力,[σ]H1,,1200