齒輪設(shè)計(jì)計(jì)算(樣板)

齒輪傳動(dòng)設(shè)計(jì),,,,,

,計(jì)算項(xiàng)目,參數(shù),公式,結(jié)果,單位

已知：,,,,,

1,額定功率,P,,44.55,kW

2,轉(zhuǎn)速,n1,,1480.00,r/min

3,傳動(dòng)比,i,,4.00,

4,工作條件,,載荷平穩(wěn)、大批量生產(chǎn),,

5,工作時(shí)間,t,,2.00,班制

6,使用期限,,,10.00,年

1選擇齒輪的材料、熱處理方式和精度等級(jí),,,,,

1,小齒輪材料,,,40Cr,

2,小齒輪熱處理,,調(diào)質(zhì),50,HRC

3,大齒輪材料,,,40Cr,

4,大齒輪熱處理,,正火,50,HRC

5,傳動(dòng)精度等級(jí),,,7,級(jí)

2初步確定主要參數(shù),,,,,

1,小齒輪傳遞轉(zhuǎn)矩,T1,,287467.91,Nmm

2,小齒輪齒數(shù),Z1,,17,

3,大齒輪齒數(shù),Z2,,68,

,,,圓整,68,

4,傳動(dòng)比,i,,4.00,

5,,,誤差,0.00%,合格

6,螺旋角,β,,12.00,

7,齒寬系數(shù),Фd,"由p144,表8.6查得",0.50,

8,端面重合度,εα,,1.61,

9,軸面重合度,εβ,,0.57,

3齒根彎曲疲勞強(qiáng)度設(shè)計(jì),,,,,

1,使用系數(shù),KA,"由p130,表8.3查得",1.00,

2,動(dòng)載系數(shù),Kvt,試選,1.20,

3,齒向載荷分布系數(shù),Kβ,"由p132,圖8.11查得",1.08,

4,齒間載荷分布系數(shù),Kα,"由p133,表8.4查得",1.20,

5,小齒輪當(dāng)量齒數(shù),Zv1,,18.17,

6,大齒輪當(dāng)量齒數(shù),Zv2,,72.66,

7,小齒輪的齒形系數(shù),YF1,"由p139,圖8.19查得",2.89,

8,大齒輪的齒形系數(shù),YF2,"由p139,圖8.19查得",2.25,

9,小齒輪的應(yīng)力修正系數(shù),Ys1,"由p139,圖8.20查得",1.52,

10,大齒輪的應(yīng)力修正系數(shù),Ys2,"由p139,圖8.20查得",1.77,

11,重合度系數(shù),Yε,"由p140,圖8.21查得",0.72,

12,螺旋角系數(shù),Yβ,"由p143,圖8.26查得",0.94,

13,小齒輪的彎曲疲勞極限應(yīng)力,σFlim1,"由p146,圖8.28查得",360.00,MPa

14,大齒輪的彎曲疲勞極限應(yīng)力,σFlim2,"由p148,圖8.28查得",360.00,MPa

15,小齒輪應(yīng)力循環(huán)次數(shù),N1,,355.20,107次

16,大齒輪應(yīng)力循環(huán)次數(shù),N2,,88.80,107次

17,壽命系數(shù),YN1,"由p147,圖8.30查得",1.00,

18,壽命系數(shù),YN2,"由p147,圖8.30查得",1.00,

19,安全系數(shù),SF,"由p147,表8.7查得",1.25,

20,小齒輪的許用彎曲應(yīng)力,[σ]F1,,288.00,MPa

21,大齒輪的許用彎曲應(yīng)力,[σ]F2,,288.00,MPa

22,小齒輪的模數(shù),Mn1,,3.99,mm

23,大齒輪的模數(shù),Mn2,,3.86,mm

24,模數(shù),Mn,,3.99,mm

25,小齒輪運(yùn)動(dòng)速度,V,,5.37,mm/s

26,動(dòng)載系數(shù),Kv,"由p131,圖8.7查得",1.15,

27,修正模數(shù),Mn,,3.93,mm

28,模數(shù),Mn,"由p124,表8.1查得",4.00,mm

4齒輪參數(shù)計(jì)算,,,,,

1,中心距,a,,173.80,mm

,,,圓整,175.00,mm

2,螺旋角,β,,13.73,度

3,小齒輪分度圓直徑,d1,,70.00,mm

4,大齒輪分度圓直徑,d2,,280.00,mm

5,大齒輪寬度,b2,,35.00,mm

,,,圓整,35.00,mm

6,小齒輪寬度,b1,,40.00,mm

5齒面接觸疲勞強(qiáng)度校核,,,,,

1,彈性系數(shù),ZE,"由p136,表8.5查得",189.80,

2,節(jié)點(diǎn)區(qū)域系數(shù),ZH,"由p136,圖8.14查得",2.45,

3,重合度系數(shù),Zε,"由p136,圖8.15查得",0.84,

4,螺旋角系數(shù),Zβ,"由p142,圖8.24查得",0.99,

5,小齒輪的接觸疲勞極限應(yīng)力,σHlim1,"由p146,圖8.28查得",1200.00,MPa

6,大齒輪的接觸疲勞極限應(yīng)力,σHlim2,"由p146,圖8.28查得",1200.00,MPa

7,壽命系數(shù),ZN1,"由p147,圖8.29查得",1.00,

8,壽命系數(shù),ZN2,"由p147,圖8.29查得",1.00,

9,安全系數(shù),SH,"由p147,表8.7查得",1.00,

10,小齒輪的許用接觸應(yīng)力,[σ]H1,,1200