V带设计步骤及图表

1、精选优质文档-倾情为你奉上计算功率Pca其根据传递功率P，并考虑到载荷性质和每天工作时间等因素而确定，即Pca=KA·P KW传动功率P，即额定功率（如电动机的额定功率）kw工作情况系数KA,由下表决定工作情况系数KA工 况KA软起动负载起动每天工作小时数(h)1010161610101616载荷变动微小液体搅拌机，通风机和鼓风机（7.5kw）,离心式水泵和压缩机，轻型输送机1.01.11.21.11.21.3载荷变动小带式输送机（不均匀载荷），通风机（>7.5kw）,旋转式水泵和压缩机，发电机，金属切削机床，印刷机，旋转筛，锯木机和木工机械1.11.21.31.21.31.4

2、载荷变动较大制砖机，斗式提升机，往复式水泵和压缩机，起重机，磨粉机，冲剪机床，橡胶机械，震动筛，纺织机械，重载输送机1.21.31.41.41.51.6载荷变动很大破碎机（旋转式、鄂式等），磨碎机（球磨、棒磨、管磨）1.31.41.51.51.61.8注：1）软起动电动机(交流起动、三角起动、支流并励)，四缸以上的内燃机，装有离心式离合器、液力联轴器的动力机 。负载起动电动机（联机交流起动、直流复励或串励），四缸以下的内燃机。2）反复起动、正反转频繁、工作条件恶劣等场合，KA应乘1.2。3) 增速传动时KA应承下列系数: 增速比：1.251.74 1.752.49 2.53.49 3.5 系

3、数： 1.05 1.11 1.18 1.28选择带型根据计算功率Pca和小带轮转速n1，由图1或图2选定带型 基准直径D1 小带轮基准直径，根据V带截型，参看表1表2选取，D1Dmin表1 V带轮的最小基准直径Dmin(mm)槽 型ZABCSPZSPASPBSPCDmin50751252006390140224带速VVmax:对普通V带 Vmax=2530 m/s对窄V带 Vmax=3540 m/s若V>Vmax 则离心力过大，应减小D1若V过小，则D1选择过小一般以V20m/s为宜基准直径D2从动轮基准直径D2=iD1， i-传动比 ，并需圆整带轮直径圆整：按下表圆整表2: V带轮的基

4、准直径系列（mm）基准直径D带 型YZABCDE SPZSPASPBSPC 外 径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参见图8-112） 直径的极限偏差:基准直径按c11，外径按h12。3）

6、没有外径值的基准直径不推荐采用。4） 仅限于普通V带轮；仅限于SP型窄V带轮中心距a1. 若中心距未给出，可初值中心距a0，取0.7（D1+D2）< a0<2(D1+D2)2. a0取定后，按下式计算所需基准长度L'd3. 根据L'd选取与l'd相近的V带4. 再根据Ld计算实际中心距考虑到安装调整和补偿预紧力需要，中心距变动范围为基准长度Ld 见下表表： V带的基准长度系列（mm）基准长度截 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 + +主动轮包角1带根数Z 为使各根V带受力均匀，根数不宜太多（通常Z<10）否则应改带型。 表 单根普通V带的基本额定功率P0(kw) 带型小带轮基小带轮转速n1(r/min) 准直径 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 单根

10、普通V带的基本额定功率P0(kw) 带型小带轮基小带轮转速n1(r/min) 准直径 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-单根V带功率增量P0 (kw)其值查或表1 单根普通V带额定功率的增量P0 (kw)带型小带轮传 动 比 i转速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 单根普通V带额定功率的增量P0 (kw)带型小带轮传 动 比 i转速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包角系数K：考虑包角不同时的影响系数，查下表表8-9 包角系数K小带轮包角(°)K小带轮包角（°）K18011450.911750.991400.891700.981350.881650.961300.861600.951250.841550.931200.821500.92 长度系数KL:考虑带的长度不同时的影响系数，查下表表8-10 长度系数KL基准长度Ld(mm)KL普通V带窄V带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