V帶設(shè)計步驟及圖表

1、精選優(yōu)質(zhì)文檔-傾情為你奉上計算功率Pca其根據(jù)傳遞功率P，并考慮到載荷性質(zhì)和每天工作時間等因素而確定，即Pca=KA·P KW傳動功率P，即額定功率（如電動機的額定功率）kw工作情況系數(shù)KA,由下表決定工作情況系數(shù)KA工 況KA軟起動負(fù)載起動每天工作小時數(shù)(h)1010161610101616載荷變動微小液體攪拌機，通風(fēng)機和鼓風(fēng)機（7.5kw）,離心式水泵和壓縮機，輕型輸送機1.01.11.21.11.21.3載荷變動小帶式輸送機（不均勻載荷），通風(fēng)機（>7.5kw）,旋轉(zhuǎn)式水泵和壓縮機，發(fā)電機，金屬切削機床，印刷機，旋轉(zhuǎn)篩，鋸木機和木工機械1.11.21.31.21.31.4

2、載荷變動較大制磚機，斗式提升機，往復(fù)式水泵和壓縮機，起重機，磨粉機，沖剪機床，橡膠機械，震動篩，紡織機械，重載輸送機1.21.31.41.41.51.6載荷變動很大破碎機（旋轉(zhuǎn)式、鄂式等），磨碎機（球磨、棒磨、管磨）1.31.41.51.51.61.8注：1）軟起動電動機(交流起動、三角起動、支流并勵)，四缸以上的內(nèi)燃機，裝有離心式離合器、液力聯(lián)軸器的動力機 。負(fù)載起動電動機（聯(lián)機交流起動、直流復(fù)勵或串勵），四缸以下的內(nèi)燃機。2）反復(fù)起動、正反轉(zhuǎn)頻繁、工作條件惡劣等場合，KA應(yīng)乘1.2。3) 增速傳動時KA應(yīng)承下列系數(shù): 增速比：1.251.74 1.752.49 2.53.49 3.5 系

3、數(shù)： 1.05 1.11 1.18 1.28選擇帶型根據(jù)計算功率Pca和小帶輪轉(zhuǎn)速n1，由圖1或圖2選定帶型 基準(zhǔn)直徑D1 小帶輪基準(zhǔn)直徑，根據(jù)V帶截型，參看表1表2選取，D1Dmin表1 V帶輪的最小基準(zhǔn)直徑Dmin(mm)槽 型ZABCSPZSPASPBSPCDmin50751252006390140224帶速VVmax:對普通V帶 Vmax=2530 m/s對窄V帶 Vmax=3540 m/s若V>Vmax 則離心力過大，應(yīng)減小D1若V過小，則D1選擇過小一般以V20m/s為宜基準(zhǔn)直徑D2從動輪基準(zhǔn)直徑D2=iD1， i-傳動比 ，并需圓整帶輪直徑圓整：按下表圓整表2: V帶輪的基

4、準(zhǔn)直徑系列（mm）基準(zhǔn)直徑D帶 型YZABCDE SPZSPASPBSPC 外 徑Dw5053.254 6366.267 7174.275 757980.5 8083.28485.5 8590.5 9093.29495.5 95100.5 100103.2104105.5 106111.5 112115.2116117.5 118123.5 125128.2129130.5132 132 136137.5139 140 144145.5147 150 154155.5157 160 164165.5167 170 177 180 184185.5187 200 204205.5207209.6

5、 212 219221.6 224 228229.5231233.6 236 243245.6 250 254255.5257259.6 265 274.6 280 284285.5287289.6 315 319320.5322324.6 355 359360.5362364.6371.2 375 391.2 400 404405.5407409.6416.2 425 441.2 450 455.5457459.6466.2 475 491.2 500 504505.5507509.6516.2519.2注：1） Dw參見圖8-112） 直徑的極限偏差:基準(zhǔn)直徑按c11，外徑按h12。3）

6、沒有外徑值的基準(zhǔn)直徑不推薦采用。4） 僅限于普通V帶輪；僅限于SP型窄V帶輪中心距a1. 若中心距未給出，可初值中心距a0，取0.7（D1+D2）< a0<2(D1+D2)2. a0取定后，按下式計算所需基準(zhǔn)長度L'd3. 根據(jù)L'd選取與l'd相近的V帶4. 再根據(jù)Ld計算實際中心距考慮到安裝調(diào)整和補償預(yù)緊力需要，中心距變動范圍為基準(zhǔn)長度Ld 見下表表： V帶的基準(zhǔn)長度系列（mm）基準(zhǔn)長度截 型Ld(mm)YZABCDESPZSPASPBSPC400+ 450+ 500+ 560 + 630 + + 710 + + 800 + + 900 + + 1000

7、 + + 1120 + + 1250 + + 1400 + + 1600 + + 1800 + + 2000 + +2240 + +2500 + +2800 + +3150 + +3550 + +4000 + +4500 + +5000 + +主動輪包角1帶根數(shù)Z 為使各根V帶受力均勻，根數(shù)不宜太多（通常Z<10）否則應(yīng)改帶型。 表 單根普通V帶的基本額定功率P0(kw) 帶型小帶輪基小帶輪轉(zhuǎn)速n1(r/min) 準(zhǔn)直徑 D1400730800980120014602800 (mm) Z型500.060.090.100.120.140.160.26 630.080.130.130.180

8、.220.250.41 710.090.170.170.230.270.310.50 800.140.200.200.260.300.360.56 A型750.270.420.450.520.60.681.00 900.390.630.680.790.931.071.64 1000.470.770.830.971.141.322.05 1120.560.931.001.181.391.622.51 1250.671.111.191.401.661.932.98 B型1250.841.341.441.671.932.202.96 1401.051.691.822.132.472.833.85 1

9、601.322.162.232.723.173.644.89 1801.592.612.813.303.854.415.76 2001.853.053.303.864.505.156.43 C型2002.413.804.074.665.295.865.01 2242.994.7785.125.896.717.476.08 2503.625.826.237.188.129.066.56 2804.326.997.528.659.8110.746.13 3155.418.348.9210.2311.5312.484.16 4007.0611.5212.1013.6715.0415.51- 表 單根

10、普通V帶的基本額定功率P0(kw) 帶型小帶輪基小帶輪轉(zhuǎn)速n1(r/min) 準(zhǔn)直徑 D1400730800980120014602800(mm)SPZ型630.350.560.600.700.810.931.45710.440.721.780.921.081.252.00800.550.881.991.151.381.602.61900.671.121.121.441.701.983.26SPA型900.751.211.301.521.762.023.001000.940.541.651.932.272.613.991121.161.912.072.442.863.315.151251.40

11、2.332.522.983.054.066.341401.682.813.033.584.234.917.64SPB型1401.923.133.353.924.555.217.151602.474.064.375.135.986.899.521803.014.995.376.317.388.511.622003.545.886.357.478.7410.0713.412244.186.977.528.8310.3311.8615.14SPC型2245.198.8210.4310.3911.8913.26-2506.3110.2711.0212.7614.6116.26-2807.5912.40

12、13.3115.4017.6019.49-3159.0714.8215.9018.3720.8822.92-40012.5620.4121.8425.1527.3329.40-單根V帶功率增量P0 (kw)其值查或表1 單根普通V帶額定功率的增量P0 (kw)帶型小帶輪傳 動 比 i轉(zhuǎn)速1.001.021.051.091.131.191.251.351.52 n12.0(r/min)1.011.041.081.121.181.241.341.511.99 Z型4000.000.000.000.000.000.000.000.000.010.017300.000.000.000.000.000.

13、000.010.010.010.028000.000.000.000.000.010.010.010.010.020.029800.000.000.000.010.010.010.010.010.020.0212000.000.000.010.010.010.010.020.020.020.0314600.000.000.010.010.010.020.020.020.020.0328000.000.010.020.020.030.030.030.030.040.04A型4000.000.010.010.020.020.030.030.040.040.057300.000.010.020.03

14、0.040.050.060.070.080.098000.000.010.020.030.040.050.060.080.090.109800.000.010.030.040.050.060.070.080.100.1112000.000.020.030.050.070.080.100.110.130.1514600.000.020.040.060.080.090.110.130.150.1728000.000.040.080.110.150.190.230.260.300.34B型4000.000.010.030.040.060.070.080.100.110.137300.000.020.

15、050.070.100.120.150.170.200.228000.000.030.060.080.110.140.170.200.230.259800.000.030.070.100.130.170.200.230.260.3012000.000.040.080.130.170.210.250.300.340.3814600.000.050.100.150.200.250.310.360.40.4628000.000.100.200.290.390.490.590.690.790.89C型4000.000.040.080.120.160.200.230.270.310.357300.000

16、.070.140.210.270.340.410.480.550.628000.000.080.160.230.310.390.470.550.630.719800.000.090.190.270.370.470.560.650.740.8312000.000.120.240.350.470.590.700.820.941.0614600.000.140.280.420.580.710.850.991.141.27 28000.000.270.550.821.101.371.641.922.192.47表2 單根普通V帶額定功率的增量P0 (kw)帶型小帶輪傳 動 比 i轉(zhuǎn)速1.001.021

17、.061.121.191.271.391.581.953.39n1(r/min)1.011.051.111.181.261.381.571.943.38SPZ型4000.000.010.010.030.030.040.050.060.060.067300.000.010.030.050.060.080.090.100.110.128000.000.010.030.050.070.080.100.110.120.139800.000.010.040.060.080.100.120.130.150.1512000.000.020.040.080.100.130.150.170.180.191460

18、0.000.020.050.090.130.150.180.200.220.2328000.000.040.100.180.240.300.350.390.430.45SPA型4000.000.010.040.070.090.110.130.140.160.167300.000.020.070.120.160.200.230.260.280.308000.000.030.080.130.180.220.250.290.310.339800.000.030.090.160.210.260.300.340.370.4012000.000.040.110.200.270.330.380.430.47

19、0.4914600.000.050.140.240.320.390.460.510.560.5928000.000.100.260.460.630.760.891.001.091.15SPB型4000.000.030.080.140.190.220.260.300.320.347300.000.050.140.250.330.400.470.530.580.628000.000.060.160.270.370.450.530.590.650.689800.000.070.190.330.450.540.630.710.780.8212000.000.090.230.410.560.670.79

20、0.890.971.0314600.000.100.280.490.670.810.951.071.161.2328000.000.200.550.961.31.571.852.082.262.04SPC型4000.000.090.240.410.560.680.790.890.971.037300.000.160.420.741.001.201.431.601.751.858000.000.170.470.821.121.351.581.781.942.069800.000.210.560.981.341.621.902.142.332.4712000.000.260.711.231.672

21、.032.382.672.913.0914600.000.310.851.482.010.432.853.213.503.70包角系數(shù)K：考慮包角不同時的影響系數(shù)，查下表表8-9 包角系數(shù)K小帶輪包角(°)K小帶輪包角（°）K18011450.911750.991400.891700.981350.881650.961300.861600.951250.841550.931200.821500.92 長度系數(shù)KL:考慮帶的長度不同時的影響系數(shù)，查下表表8-10 長度系數(shù)KL基準(zhǔn)長度Ld(mm)KL普通V帶窄V帶YZABCDESPZSPASPBSPC4000.960.87 4

22、501.000.89 5001.020.91 560 0.94 630 0.960.81 0.82 710 0.990.82 0.84 800 1.000.85 0.860.81 900 1.030.870.81 0.880.83 100 1.060.890.84 0.900.85 1120 1.080.910.86 0.930.87 1250 1.110.930.88 0.940.890.82 1400 1.140.960.90 0.960.910.84 1600 1.160.990.930.84 1.000.930.86 1800 1.181.010.950.85 1.010.950.88 2000 1.030.980.88 1.020.960.90.812240 1.061.000.91 1.050.980.920.832500 1.091.030.93 1.071.000.940.862800 1.111.050.950.83 1.091.020.960.883150 1.131.070.970.86 1.111.040.980.90 3550 1.171.100.980.89 1.131.061.000.924000 1.191.131.020.91 1.081.020.944500 1.151.040.930.9 1.091.040.9650