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目次へ すぐばかさ歯車の計算(ルイスの式) |
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0 |
FALSE |
すぐばかさ歯車の計算(ルイスの式) |
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減速比=1.1 |
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90 |
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並歯 |
圧力角[°] |
外端正面モジュールm |
歯数 Z |
回転数
n |
歯幅 B |
材料 |
歯面硬度 |
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[rpm] |
[mm] |
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1 |
小歯車 |
20 |
4 |
20 |
1500 |
15 |
SUS304_ステンレス |
200B |
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SUS304 |
6 |
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2 |
大歯車 |
40 |
750 |
MC901_ナイロン |
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MC901 |
4 |
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●ピッチ円周上の周速 v (m/s) |
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v=π*d01*n1/(1000*60)=π*80*1500/(1000*60)=6.28
[m/s] |
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●速度係数 fv |
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●荷重係数 fw |
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fv=3.05/(3.05+v)=3.05/(3.05+6.28)=0.33 |
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fw=0.74 |
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0.8 |
0.74 |
0.74 |
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●小歯車:曲げ強さによる接線力 |
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●トルク |
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F=σb*B*mm*y=17.094*15*3.66*0.559=525
[N] |
T=F*dm1/2 |
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σb=fv*fw*σ0=0.33*0.74*70=17.094
[N/mm2] |
=525*73.29/2=19.24[N-m] |
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294 |
255 |
70 |
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●スラスト |
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σ0=許容曲げ応力=70 [N/mm2] |
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Fx=F*tan(α0)*sin(δ1) |
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y=歯形係数=0.559 |
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=525*tan(20)*sin(26.5651)=85.46[N] |
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mm=相当モジュール=3.66 |
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●大歯車:曲げ強さによる接線力 |
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●トルク |
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294 |
255 |
7 |
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F=σb*B*mm*y=1.709*15*3.66*0.747=70
[N] |
T=F*dm2/2 |
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σb=fv*fw*σ0=0.33*0.74*7=1.709
[N/mm2] |
=70*146.58/2=5.13[N-m] |
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●スラスト |
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σ0=許容曲げ応力=7 [N/mm2] |
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Fx=F*tan(α0)*sin(δ2)=22.79[N] |
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y=歯形係数=0.747 |
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=70*tan(20)*sin(63.4349)=22.79[N] |
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●面圧強さによる接線力 |
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●トルク |
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0.676 |
1.274 |
4 |
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F=fv*k*dm_1*B*2*Z2/[Z1*Cos(δ2)+Z2*Cos(δ1)] |
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小歯車:T=F*dm1/2=1000000*73.29/2=36645[N-m] |
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=0.33*4*80.52*15*2*40/[20*Cos(63.4349)+40*Cos(26.5651)] |
大歯車:T=F*dm2/2=1000000*146.58/2=73290[N-m] |
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=1000000 [N] |
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●スラスト |
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小歯車:Fx=F*tan(α0)*sin(δ1) |
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k=触面応力係数=4 [N/mm2] |
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=1000000*tan(20)*sin(26.5651)=162772.71[N] |
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dm_1=歯幅中間点の相当平歯車直径=3.66*22=73.29
[mm] |
大歯車:Fx=F*tan(α0)*sin(δ2) |
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=1000000*tan(20)*sin(63.4349)=325544.73[N] |
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●伝達動力 |
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P=F*vm/1000=70*5.76/1000=0.403
[kW] |
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vm=中央ピッチ円上の周速=5.76 [m/s] |
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