链轮标准规格尺寸一览表
标准链轮的尺寸
P:节距,R:滚子直径 ,N:链轮的齿数
◎节距直径PCD = P/(sin180°/N)
◎外径OD = P/(0.6+cot180°/N)
下表给出一种标准节距链轮的节距直径和外径(节距1)。
例:
为了得到120号NT(齿数)25链轮的节径和外径从表中可得到节距为7.9789。因此PCD=38.1×7.9789=303.98847,或者取小数点后1位并四舍五入303.99。
外径可从表中查得为8.516。因此OD=38.10×8.516=324.4596,或取小数点后1位并四舍五入324。
齿根圆直径BD=PCD—R
最大齿根距离(卡钳测量):CD
对于奇数齿:CD=PCDcos90/N—R
对于偶数齿:CD=BD
齿数 | 系数 | 系数 | 齿数 | 系数 | 系数 | 齿数 | 系数 | 系数 |
1/[sin(180/N)] | 0.6+cot(180/N) | 1/[sin(180/N)] | 016+cot(180/N) | 1/[sin(180/N)] | 0.6+cot(180/N) | |||
11 | 3.5495 | 4.006 | 52 | 16.2441 | 16.813 | 91 | 28.972 | 29.29 |
12 | 3.8637 | 4.332 | 52 | 16.5622 | 17.132 | 92 | 29.2902 | 29.873 |
13 | 4.1786 | 4.657 | 53 | 16.8803 | 17.451 | 93 | 29.6085 | 30.192 |
14 | 4.494 | 4.981 | 54 | 17.1984 | 17.769 | 94 | 29.9267 | 30.51 |
15 | 4.8097 | 5.305 | 55 | 17.5166 | 18.088 | 95 | 30.2449 | 30.828 |
16 | 5.1258 | 5.627 | 56 | 17.8347 | 18.407 | 96 | 30.5632 | 31.147 |
17 | 5.4422 | 5 950 | 57 | 18.1529 | 18.725 | 97 | 30.8815 | 31.465 |
18 | 5.7588 | 6.271 | 58 | 18.471 | 19.044 | 98 | 31.1997 | 31.784 |
19 | 6.0755 | 6 593 | 59 | 18.7892 | 19.363 | 99 | 31.518 | 32.102 |
20 | 6.3925 | 6 914 | 60 | 19.1073 | 19.681 | 100 | 31.8362 | 32.421 |
2l | 6.7095 | 7.235 | 61 | 19.4255 | 20 | 101 | 32.1545 | 32.739 |
22 | 7.0267 | 7.555 | 62 | 19.7437 | 20.318 | 102 | 32.4727 | 33.057 |
23 | 7.3439 | 7 876 | 63 | 20.0618 | 20.637 | 103 | 32.791 | 33.376 |
24 | 7.6613 | 8 196 | 64 | 20.38 | 20.955 | 104 | 33.1093 | 33.694 |
25 | 7.9787 | 8.516 | 65 | 20.6982 | 21.274 | 105 | 33.4275 | 34.013 |
26 | 8.2962 | 8.836 | 66 | 21.0164 | 21.593 | 106 | 33.7458 | 34.331 |
27 | 8.6138 | 9.156 | 67 | 21.2349 | 21.911 | 107 | 34.0641 | 34.694 |
28 | 8.9314 | 9.475 | 68 | 21.6528 | 22.23 | 108 | 34.3823 | 34.968 |
29 | 9.2491 | 9.795 | 69 | 21.971 | 22.548 | 109 | 34.7006 | 35.286 |
30 | 9.5668 | 10.114 | 70 | 22.2892 | 22.867 | 110 | 35.0189 | 35.605 |
31 | 9.8845 | 10.434 | 71 | 22.6074 | 23.185 | 111 | 35.3371 | 35.923 |
32 | 10.2023 | 10.753 | 72 | 22.9256 | 23.504 | 112 | 35.6554 | 36.241 |
33 | 10.5201 | 11.072 | 73 | 23.2438 | 23.822 | 113 | 35.9737 | 36.56 |
34 | 10.838 | 11.392 | 74 | 23.562 | 24.141 | 114 | 36.2919 | 36.878 |
35 | 11.1558 | 11.711 | 75 | 23.8802 | 24.459 | 115 | 36.6102 | 37.197 |
36 | 11.4737 | 12.03 | 76 | 24.1984 | 24 778 | 116 | 36.9285 | 37.515 |
37 | 11.7916 | 12.349 | 77 | 24.5167 | 25.096 | 117 | 37.2467 | 37.833 |
38 | 12.1096 | 12.668 | 78 | 24.8349 | 25.415 | 118 | 37.565 | 38.152 |
39 | 12.4275 | 12.987 | 79 | 25.1531 | 25.733 | 119 | 37.8833 | 38.47 |
40 | 12.7455 | 13.306 | 80 | 25.4713 | 26.052 | 120 | 38.2016 | 38.788 |
41 | 13.0635 | 13.625 | 81 | 25.7896 | 26.37 | |||
42 | 13.3815 | 13.944 | 82 | 26.1078 | 26.689 | |||
43 | 13.6995 | 14.363 | 83 | 26.4261 | 27.007 | |||
44 | 14.0175 | 14.582 | 84 | 26.7443 | 27.326 | |||
45 | 14.3356 | 14 901 | 85 | 27.0625 | 27.644 | |||
46 | 14.6536 | 15.219 | 86 | 27.3807 | 27.962 | |||
47 | 14.9717 | 15.538 | 87 | 27.699 | 28.281 | |||
48 | 15.2898 | 15.857 | 88 | 28.0172 | 28.599 | |||
49 | 15.6079 | 16.176 | 89 | 28.3355 | 28.918 | |||
50 | 15.926 | 16.495 | 90 | 28.6537 | 29.236 |
将本文加入收藏夹
新闻详情