타임풀리, 벨트길이, 풀리직경과 중심거리, 회전수에 따른 풀리선정

타이밍벨트와 풀리의 선정                                  <a href="http://www.sflee.co.kr/industrialbelts/beltech2.htm" target="main">우레탄벨트 텐션 표</a> click                              <a href="http://www.sflee.co.kr/industrialbelts/beltech3.htm" target="main">우레탄벨트 장력표</a>click<table border="" width="648" height="1071" cellspacing="0" bordercolordark="white" bordercolorlight="black" style="color: rgb(0, 0, 0); font-family: Gulim;"><caption align="bottom"> </caption><tbody><tr><td width="50%" style="font-size: 9pt;">선정순서</td><td width="49%" style="font-size: 9pt;">선정의 예</td></tr><tr><td width="50%" style="font-size: 9pt;"> 1단계 : 구동조건을 결정한다   가. 적용 나. 부하  다. 축회전  라. 속비  마. 중심거리 바. 작동  바. 부가적 특수드라이브 조건 참조       예: 풀리직경한도, 주변환경(온도,기름,화학성)</td><td width="49%" style="font-size: 9pt;"> 가. 선반 나. 3.7kw  다. 구동축 1750rpm 피동축 875rpm  라. 1:2  마. 510±10㎜  바. 16시간/1일       소풀리는 최대 90㎜까지</td></tr><tr><td width="50%" style="font-size: 9pt;">2단계 : 설계 마력 계산  PD = Pm x Ks  PD = 설계마력  Pm = 모타마력  Ks = 써비스 팩토(Service Factor)(표참조)               Ks = k1 + k2 + k3</td><td width="49%" style="font-size: 9pt;">PD = 3.7kw x 1.8 = 6.7kw(Ks = 1.8 + 0 + 0 = 1.8)</td></tr><tr><td width="50%" style="font-size: 9pt;">3단계 : 벨트 타잎의 선정(표참조)</td><td width="49%" style="font-size: 9pt;">벨트 타잎 "H"를 선정함 <img src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.sflee.co.kr%2Findustrialbelts%2Fimages%2Fbeltech2.gif" width="198" height="176" border="0"> </td></tr><tr><td width="50%" style="font-size: 9pt;"> 4단계 : 타이밍풀리의 결정가. 표1의 적당한 풀리직경을 체크한다나. 대풀리 직경을 D라하면 D=소풀리직경(d)x속비</td><td width="49%" style="font-size: 9pt;"> 선택된 풀리구동축 풀리 : 22H(88.94 PD)피동축 풀리 : 44H(177.87 PD)</td></tr><tr><td width="50%" style="font-size: 9pt;"> 5단계 : 벨트길이와 중심거리 계산방법가. 잠정적인 중심거리 (C')를 사용해서 벨트길이를 계산      L'= 2C'+1.57(D+d)+ (D-d)²/4C'            L' : 계산된 벨트 길이(㎜)            C' : 잠정적인 중심거리(㎜)            D : 대풀리 PITCH 직경(㎜)            d : 소풀리 PITCH 직경(㎜)나. 계산된 벨트길이에 가장 가까운 표준벨트를 선택다. 정확한 중심거리의 재계산  <img src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.sflee.co.kr%2Findustrialbelts%2Fimages%2Fbeltech01.GIF" width="274" height="74" border="0">             b = 2L - π(D+d)</td><td width="49%" style="font-size: 9pt;">계산된 벨트길이L'=2x510+1.57(177.87+88.94) +(177.87-88.92)²/4x510  계산된 벨트길이에 가장 가까운 H형표준벨트 = 570H(1447.80㎜)  유효중심거리b=2x1447.8-3.14(177.87-88.94)=2057.82정확한 중심거리 C=512.42㎜</td></tr><tr><td width="50%" style="font-size: 9pt;"> 6단계 : 벨트폭의 계산          W≥ PD / Pr x F          W = 벨트폭          PD = 설계마력          Pr = 1 inch 벨트폭당 마력비율          F = 맞물려 닿는 잇수</td><td width="49%" style="font-size: 9pt;">W≥ 6.7kw / 5.0kw / 25.4㎜ x 1.0 = 34㎜벨트표준폭 : 38.1mm (코드150)주의 : Pr 값 즉, 벨트 1인치 당 기본동력비율-  위 계산 예에서 5.0kw/25.4mm-은 카다록의 도표를 참조하시기 바랍니다.</td></tr><tr><td width="50%" style="font-size: 9pt;">7단계 ; 작동</td><td width="49%" style="font-size: 9pt;">벨트타잎:570H150   구동풀리:22H150  피동풀리:44H150  중심거리:521.42㎜</td></tr></tbody></table><table border="0" width="648" style="color: rgb(0, 0, 0); font-family: Gulim;"><tbody><tr><td width="642" style="font-size: 9pt;">설계동력(Kw)과 작은 풀리의 RPM만으로 벨트를 간단히 선택하기 위한 도표 <img src="https://img1.daumcdn.net/relay/cafe/original/?fname=http%3A%2F%2Fwww.sflee.co.kr%2Findustrialbelts%2Fimages%2Fbeltech5.gif" width="582" height="351" border="0"> </td></tr></tbody></table>도표 1. 최소권장 풀리 규격표<table border="" width="647" height="300" cellspacing="0" bordercolordark="white" bordercolorlight="black" style="color: rgb(0, 0, 0); font-family: Gulim;"><caption align="bottom"> </caption><tbody><tr><td width="8%" height="28" style="font-size: 9pt;">rpm</td><td width="80" height="28" colspan="2" style="font-size: 9pt;">575</td><td width="80" height="28" colspan="2" style="font-size: 9pt;">690</td><td width="80" height="28" colspan="2" style="font-size: 9pt;">870</td><td width="80" height="28" colspan="2" style="font-size: 9pt;">1160</td><td width="80" height="28" colspan="2" style="font-size: 9pt;">1750</td><td width="80" height="28" colspan="2" style="font-size: 9pt;">3500</td><td width="80" height="28" colspan="2" style="font-size: 9pt;">6000</td></tr><tr><td width="8%" height="28" style="font-size: 9pt;">직경과최소 잇수</td><td width="38" height="28" style="font-size: 9pt;">직경(㎜)</td><td width="38" height="28" style="font-size: 9pt;">잇수</td><td width="38" height="28" style="font-size: 9pt;">직경(㎜)</td><td width="38" height="28" style="font-size: 9pt;">잇수</td><td width="38" height="28" style="font-size: 9pt;">직경(㎜)</td><td width="38" height="28" style="font-size: 9pt;">잇수</td><td width="38" height="28" style="font-size: 9pt;">직경(㎜)</td><td width="38" height="28" style="font-size: 9pt;">잇수</td><td width="38" height="28" style="font-size: 9pt;">직경(㎜)</td><td width="38" height="28" style="font-size: 9pt;">잇수</td><td width="38" height="28" style="font-size: 9pt;">직경(㎜)</td><td width="38" height="28" style="font-size: 9pt;">잇수</td><td width="38" height="28" style="font-size: 9pt;">직경(㎜)</td><td width="38" height="28" style="font-size: 9pt;">잇수</td></tr><tr><td width="8%" height="28" style="font-size: 9pt;">MXL</td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;">7.76</td><td width="38" height="28" style="font-size: 9pt;">12</td><td width="38" height="28" style="font-size: 9pt;">9.06</td><td width="38" height="28" style="font-size: 9pt;">14</td><td width="38" height="28" style="font-size: 9pt;">10.35</td><td width="38" height="28" style="font-size: 9pt;">16</td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;"> </td></tr><tr><td width="8%" height="28" style="font-size: 9pt;">XL</td><td width="38" height="28" style="font-size: 9pt;">16.17</td><td width="38" height="28" style="font-size: 9pt;">10</td><td width="38" height="28" style="font-size: 9pt;">16.17</td><td width="38" height="28" style="font-size: 9pt;">10</td><td width="38" height="28" style="font-size: 9pt;">16.17</td><td width="38" height="28" style="font-size: 9pt;">10</td><td width="38" height="28" style="font-size: 9pt;">16.17</td><td width="38" height="28" style="font-size: 9pt;">10</td><td width="38" height="28" style="font-size: 9pt;">17.79</td><td width="38" height="28" style="font-size: 9pt;">11</td><td width="38" height="28" style="font-size: 9pt;">19.4</td><td width="38" height="28" style="font-size: 9pt;">12</td><td width="38" height="28" style="font-size: 9pt;">25.87</td><td width="38" height="28" style="font-size: 9pt;">16</td></tr><tr><td width="8%" height="28" style="font-size: 9pt;">L</td><td width="38" height="28" style="font-size: 9pt;">36.38</td><td width="38" height="28" style="font-size: 9pt;">12</td><td width="38" height="28" style="font-size: 9pt;">36.38</td><td width="38" height="28" style="font-size: 9pt;">12</td><td width="38" height="28" style="font-size: 9pt;">36.38</td><td width="38" height="28" style="font-size: 9pt;">12</td><td width="38" height="28" style="font-size: 9pt;">36.38</td><td width="38" height="28" style="font-size: 9pt;">12</td><td width="38" height="28" style="font-size: 9pt;">42.45</td><td width="38" height="28" style="font-size: 9pt;">14</td><td width="38" height="28" style="font-size: 9pt;">48.51</td><td width="38" height="28" style="font-size: 9pt;">16</td><td width="38" height="28" style="font-size: 9pt;">60.64</td><td width="38" height="28" style="font-size: 9pt;">20</td></tr><tr><td width="8%" height="28" style="font-size: 9pt;">H</td><td width="38" height="28" style="font-size: 9pt;">56.6</td><td width="38" height="28" style="font-size: 9pt;">14</td><td width="38" height="28" style="font-size: 9pt;">56.6</td><td width="38" height="28" style="font-size: 9pt;">14</td><td width="38" height="28" style="font-size: 9pt;">56.6</td><td width="38" height="28" style="font-size: 9pt;">14</td><td width="38" height="28" style="font-size: 9pt;">64.68</td><td width="38" height="28" style="font-size: 9pt;">16</td><td width="38" height="28" style="font-size: 9pt;">72.77</td><td width="38" height="28" style="font-size: 9pt;">18</td><td width="38" height="28" style="font-size: 9pt;">80.85</td><td width="38" height="28" style="font-size: 9pt;">20</td><td width="38" height="28" style="font-size: 9pt;">97.02</td><td width="38" height="28" style="font-size: 9pt;">24</td></tr><tr><td width="8%" height="28" style="font-size: 9pt;">XH</td><td width="38" height="28" style="font-size: 9pt;">127.34</td><td width="38" height="28" style="font-size: 9pt;">18</td><td width="38" height="28" style="font-size: 9pt;">141.49</td><td width="38" height="28" style="font-size: 9pt;">20</td><td width="38" height="28" style="font-size: 9pt;">155.64</td><td width="38" height="28" style="font-size: 9pt;">22</td><td width="38" height="28" style="font-size: 9pt;">169.79</td><td width="38" height="28" style="font-size: 9pt;">24</td><td width="38" height="28" style="font-size: 9pt;">183.94</td><td width="38" height="28" style="font-size: 9pt;">26</td><td width="38" height="28" style="font-size: 9pt;">212.23</td><td width="38" height="28" style="font-size: 9pt;">30</td><td width="38" height="28" style="font-size: 9pt;"> </td><td width="38" height="28" style="font-size: 9pt;"> </td></tr><tr><td width="8%" height="26" style="font-size: 9pt;">XXH</td><td width="38" height="26" style="font-size: 9pt;">181.91</td><td width="38" height="26" style="font-size: 9pt;">18</td><td width="38" height="26" style="font-size: 9pt;">202.13</td><td width="38" height="26" style="font-size: 9pt;">20</td><td width="38" height="26" style="font-size: 9pt;">222.34</td><td width="38" height="26" style="font-size: 9pt;">22</td><td width="38" height="26" style="font-size: 9pt;">242.55</td><td width="38" height="26" style="font-size: 9pt;">24</td><td width="38" height="26" style="font-size: 9pt;">262.76</td><td width="38" height="26" style="font-size: 9pt;">26</td><td width="38" height="26" style="font-size: 9pt;"> </td><td width="38" height="26" style="font-size: 9pt;"> </td><td width="38" height="26" style="font-size: 9pt;"> </td><td width="38" height="26" style="font-size: 9pt;"> </td></tr></tbody></table>