目次へ スクリューコンベヤ[動力] |
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●運搬能力 |
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Qv = Nj * 60 * φ1 * φ2 *
π * (D ^ 2 - D1^2) * V / 4 |
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=1*60*1*1*π*(0.4^2-0.165^2)*0.4/4 |
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= 2.5 [m3/h] > 2.2
[m3/h] |
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TRUE |
2.5 |
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Qt = γ * Qv = 1.1*2.5 |
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= 2.8 [t/h] > 2.42
[t/h] |
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1611 |
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Nj=軸数 |
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1 |
[本] |
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φ1=断面効率 |
100 |
[%] |
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φ2=傾斜効率 |
100 |
[%] |
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3.7 |
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D=スクリュー径 |
0.4 |
[m] |
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100 |
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V=輸送速度 |
0.4 |
[m/min] |
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S=スクリューピッチ |
0.22 |
[m] |
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70000 |
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ns=スクリュー回転数=V/S |
1.8 |
[rpm] |
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g=重力加速度 |
9.8 |
[m/s2] |
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γ=運搬物見掛比重 |
1.1 |
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計画運搬量 |
2.2 |
[m3/h] |
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D1=中空軸径 |
0.165 |
[m] |
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●必要動力 |
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P = k * Qt * L / 367 +
Qt * H / 367 |
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0.38 |
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=10* 2.8*5/367 +2.8*0/367 |
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=0.38 [kW] |
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Qt=運搬能力 |
2.8 |
[t/h] |
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k=係数 |
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10 |
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L=水平機長 |
5 |
[m] |
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H=揚程 |
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0 |
[m] |
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傾斜角 |
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0 |
[ °] |
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●計画動力 |
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Pm
=F*P/η=2*0.38/0.6=1.27 [kW] → 1.5 [kW] |
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1.27 |
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η=機械効率 |
0.6 |
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Pm=計画動力 |
1.5 |
[kW] |
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F=サービスファクタ |
2 |
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