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三角帶設計準則和單根V帶的額定功率
1.設計準則
根據帶傳動工作能力分析可知,帶傳動的主要失效形式有:①帶在帶輪上打滑,不能傳遞動力;②帶發生疲勞破壞(經歷一定應力循環次數后發生拉斷、撕裂、脫層)。因此帶傳動的設計準則為:①帶在傳遞規定功率時不發生打滑,即滿足式(8-7)。②具有一定的疲勞強度和壽命,即滿足式(8-5)。
2.單根V帶所能傳遞的額定功率。
經推導可得單根V帶所能傳遞的額定功率為:
(8-8)
式中:v為帶速m/s。
在特定帶長、使用壽命、傳動比(i=1、
)以及在載荷平穩條件下,通過疲勞試驗測得帶的許用應力
后,代入式(8-8)便可求出特定條件下的P0值,見表
包角
=180o、特定帶長、工作平穩情況下,單根V帶的額定功率P0(KW)
|
型號 |
小帶輪 |
小 帶 輪 轉 速 n1 ( r / min ) |
||||||||||||
|
直徑dd1 |
||||||||||||||
|
|
(mm) |
200 |
400 |
730 |
800 |
980 |
1200 |
1460 |
1600 |
2000 |
2400 |
2800 |
3200 |
3600 |
|
Z |
56 |
- |
0.06 |
0.11 |
0.1 |
0.1 |
0.17 |
0.19 |
0.2 |
0.25 |
0.3 |
0.33 |
0.35 |
0.37 |
|
63 |
- |
0.08 |
0.13 |
0.2 |
0.2 |
0.22 |
0.25 |
0.27 |
0.32 |
0.37 |
0.41 |
0.45 |
0.47 |
|
|
71 |
- |
0.09 |
0.17 |
0.2 |
0.2 |
0.27 |
0.31 |
0.33 |
0.39 |
0.46 |
0.5 |
0.54 |
0.58 |
|
|
80 |
- |
0.14 |
0.2 |
0.2 |
0.3 |
0.3 |
0.36 |
0.39 |
0.44 |
0.5 |
0.56 |
0.61 |
0.64 |
|
|
90 |
- |
0.14 |
0.22 |
0.2 |
0.3 |
0.33 |
0.37 |
0.4 |
0.48 |
0.54 |
0.6 |
0.64 |
0.68 |
|
|
A |
75 |
0.16 |
0.27 |
0.42 |
0.5 |
0.5 |
0.6 |
0.68 |
0.73 |
0.84 |
0.92 |
1 |
1.04 |
1.08 |
|
90 |
0.22 |
0.39 |
0.63 |
0.7 |
0.8 |
0.93 |
1.07 |
1.15 |
1.34 |
1.5 |
1.64 |
1.75 |
1.83 |
|
|
100 |
0.26 |
0.47 |
0.77 |
0.8 |
1 |
1.14 |
1.32 |
1.42 |
1.66 |
1.87 |
2.05 |
2.19 |
2.28 |
|
|
112 |
0.31 |
0.56 |
0.93 |
1 |
1.2 |
1.39 |
1.62 |
1.74 |
2.04 |
2.3 |
2.51 |
2.68 |
2.78 |
|
|
125 |
0.37 |
0.67 |
1.11 |
1.2 |
1.4 |
1.66 |
1.93 |
2.07 |
2.44 |
2.74 |
2.98 |
3.16 |
3.26 |
|
|
140 |
0.43 |
0.78 |
1.31 |
1.4 |
1.7 |
1.96 |
2.29 |
2.45 |
2.87 |
3.22 |
3.48 |
3.65 |
3.72 |
|
|
160 |
0.51 |
0.94 |
1.56 |
1.7 |
2 |
2.36 |
2.74 |
2.94 |
3.42 |
3.8 |
4.06 |
4.19 |
4.17 |
|
|
B |
125 |
0.48 |
0.84 |
1.34 |
1.4 |
1.7 |
1.93 |
2.2 |
2.33 |
2.64 |
2.85 |
2.96 |
2.94 |
2.8 |
|
140 |
0.59 |
1.05 |
1.69 |
1.8 |
2.1 |
2.47 |
2.83 |
3 |
3.42 |
3.7 |
3.85 |
3.83 |
3.63 |
|
|
160 |
0.74 |
1.32 |
2.16 |
2.3 |
2.7 |
3.17 |
3.64 |
3.86 |
4.4 |
4.75 |
4.89 |
4.8 |
4.46 |
|
|
180 |
0.88 |
1.59 |
2.61 |
2.8 |
3.3 |
3.85 |
4.41 |
4.68 |
5.3 |
5.67 |
5.76 |
5.52 |
4.92 |
|
|
200 |
1.02 |
1.85 |
3.06 |
3.3 |
3.9 |
4.5 |
5.15 |
5.46 |
6.13 |
6.47 |
6.43 |
5.95 |
4.98 |
|
|
224 |
1.19 |
2.17 |
3.59 |
3.9 |
4.5 |
5.26 |
5.99 |
6.33 |
7.02 |
7.25 |
6.95 |
6.05 |
4.47 |
|
|
|
200 |
— |
1.39 |
1.92 |
2.4 |
2.9 |
3.3 |
3.8 |
4.66 |
5.29 |
5.86 |
6.07 |
6.28 |
6.34 |
|
|
224 |
— |
1.7 |
2.37 |
3 |
3.6 |
4.12 |
4.78 |
5.89 |
6.71 |
7.47 |
7.75 |
8 |
8.05 |
|
C |
250 |
— |
2.03 |
2.85 |
3.6 |
4.3 |
5 |
5.82 |
7.18 |
8.21 |
9.06 |
9.38 |
9.63 |
9.62 |
|
|
280 |
— |
2.42 |
3.4 |
4.3 |
5.2 |
6 |
6.99 |
8.65 |
9.81 |
10.7 |
11.1 |
11.2 |
11 |
|
|
315 |
— |
2.86 |
4.04 |
5.1 |
6.2 |
7.14 |
9.34 |
10.2 |
11.5 |
12.5 |
12.7 |
12.7 |
12.1 |
|
|
400 |
— |
3.91 |
5.54 |
7.1 |
8.5 |
9.82 |
11.5 |
13.7 |
15 |
15.5 |
15.2 |
14.1 |
12 |
|
|
355 |
3.01 |
5.31 |
7.35 |
9.2 |
11 |
12.4 |
14 |
16.3 |
17.3 |
16.7 |
15.6 |
13 |
— |
|
|
400 |
3.66 |
6.52 |
9.13 |
11 |
14 |
15.4 |
17.6 |
20.3 |
21.2 |
20 |
18.3 |
14.3 |
— |
|
D |
450 |
4.37 |
7.9 |
11 |
14 |
16 |
18.7 |
21.1 |
24.2 |
24.8 |
22.4 |
19.6 |
13.3 |
— |
|
|
500 |
5.08 |
9.21 |
12.9 |
16 |
19 |
21.8 |
24.5 |
27.6 |
27.6 |
23.3 |
18.9 |
9.59 |
— |
|
|
560 |
5.91 |
10.76 |
15.1 |
19 |
22 |
25.3 |
28.3 |
31 |
29.7 |
22.1 |
15.1 |
— |
— |
|
|
500 |
6.21 |
10.86 |
15 |
19 |
22 |
24.2 |
26.6 |
28.5 |
25.5 |
16.3 |
— |
— |
— |
|
|
560 |
7.32 |
13.09 |
18.1 |
22 |
26 |
29.3 |
32 |
33 |
28.5 |
14.5 |
— |
— |
— |
|
E |
630 |
8.75 |
15.65 |
21.7 |
27 |
31 |
34.8 |
37.6 |
37.1 |
29.2 |
— |
— |
— |
— |
|
|
710 |
10.31 |
18.52 |
25.7 |
32 |
37 |
40.6 |
43.1 |
39.6 |
25.9 |
— |
— |
— |
— |
|
|
800 |
12.05 |
21.7 |
30.1 |
37 |
43 |
46.3 |
47.8 |
39.1 |
16.5 |
— |
— |
— |
— |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
SPZ |
75 |
0.28 |
0.49 |
0.79 |
0.9 |
1 |
1.21 |
1.41 |
1.52 |
1.79 |
2.04 |
2.27 |
2.48 |
2.65 |
|
|
80 |
0.31 |
0.55 |
0.88 |
1 |
1.2 |
1.38 |
1.6 |
1.73 |
2.05 |
2.34 |
2.61 |
2.85 |
3.06 |
|
|
90 |
0.37 |
0.67 |
1.12 |
1.2 |
1.4 |
1.7 |
1.98 |
2.14 |
2.55 |
2.93 |
3.26 |
3.57 |
3.84 |
|
|
100 |
0.43 |
0.79 |
1.33 |
1.4 |
1.7 |
2.02 |
2.36 |
2.55 |
3.05 |
3.49 |
3.9 |
4.26 |
4.58 |
|
|
90 |
0.43 |
0.75 |
1.21 |
1.3 |
1.5 |
1.76 |
2.02 |
2.16 |
2.49 |
2.77 |
3 |
3.16 |
3.26 |
|
|
100 |
0.53 |
0.94 |
1.54 |
1.7 |
1.9 |
2.27 |
2.61 |
2.8 |
3.27 |
3.67 |
3.99 |
4.25 |
4.42 |
|
SPA |
112 |
0.64 |
1.16 |
1.91 |
2.1 |
2.4 |
2.86 |
3.31 |
3.57 |
4.18 |
4.71 |
5.15 |
5.49 |
5.72 |
|
|
125 |
0.77 |
1.4 |
2.33 |
2.5 |
3 |
3.5 |
4.06 |
4.38 |
5.15 |
5.8 |
6.34 |
6.76 |
7.03 |
|
|
140 |
0.92 |
1.68 |
2.81 |
3 |
3.6 |
4.23 |
4.91 |
5.29 |
6.22 |
7.01 |
7.64 |
8.11 |
8.39 |
|
|
160 |
1.11 |
2.04 |
3.42 |
3.7 |
4.4 |
5.17 |
6.01 |
6.47 |
7.6 |
8.53 |
9.24 |
9.72 |
9.94 |
|
|
140 |
1.08 |
1.92 |
3.13 |
3.4 |
3.9 |
4.55 |
5.21 |
5.54 |
6.31 |
6.86 |
7.15 |
7.17 |
6.89 |
|
|
160 |
1.37 |
2.47 |
4.06 |
4.4 |
5.1 |
5.98 |
6.89 |
7.33 |
8.38 |
9.13 |
9.52 |
9.53 |
9.1 |
|
SPB |
180 |
1.65 |
3.01 |
4.99 |
5.4 |
6.3 |
7.38 |
8.5 |
9.05 |
10.3 |
11.2 |
11.6 |
11.4 |
10.8 |
|
|
200 |
1.94 |
3.54 |
5.88 |
6.4 |
7.5 |
8.74 |
10.1 |
10.7 |
12.2 |
13.1 |
13.4 |
13 |
11.8 |
|
|
224 |
2.28 |
4.18 |
6.97 |
7.5 |
8.8 |
10.3 |
11.9 |
12.6 |
14.2 |
15.1 |
15.1 |
14.2 |
— |
|
|
250 |
2.64 |
4.86 |
8.11 |
8.8 |
10 |
12 |
13.7 |
14.5 |
16.2 |
16.9 |
16.4 |
— |
— |
|
|
224 |
2.9 |
5.19 |
8.38 |
9 |
10 |
11.9 |
13.3 |
13.8 |
14.6 |
14 |
— |
— |
— |
|
|
250 |
3.5 |
6.31 |
10.3 |
11 |
13 |
14.6 |
16.3 |
16.9 |
17.7 |
16.7 |
— |
— |
— |
|
SPC |
280 |
4.18 |
7.59 |
12.4 |
13 |
15 |
17.6 |
19.5 |
20.2 |
20.8 |
18.9 |
— |
— |
— |
|
|
315 |
4.97 |
9.07 |
14.8 |
16 |
18 |
20.9 |
22.9 |
23.6 |
23.5 |
20 |
— |
— |
— |
|
|
355 |
5.87 |
10.72 |
17.5 |
19 |
22 |
24.3 |
26.3 |
26.8 |
25.4 |
19.2 |
— |
— |
— |
|
|
400 |
6.86 |
12.56 |
20.4 |
22 |
25 |
27.3 |
29.4 |
29.5 |
25.8 |
— |
— |
— |
— |
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