1、搬运物总重量:W=600KG Total weight of load:W=600KG 2、搬送速度:V=9.5m/min Conveyance speed:V=9.5m/min 3、与道轨之摩擦系列:μ=0.15 And the friction series track: =0.15 4、链轮转动效率:η1=0.95 Sprocket transmission efficiency:η1=0.95 5、减速机转动效率:η2=0.9 Reducer transmission efficiency:η2=0.9 6、运转时间:8小时/日 Operation time:8 hours/day 7、启动次数:1回/分,中冲击 Times of starting:1 time/min,impact 8、使用电源:三相220V,60Hz Power applied:three-phase 220v,60Hz |
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减速比 REDUCTION RATIO |
选型注意事项 | 计算范例 | |||||
由必要的入力轴回转数及出力轴回转数来选定减速比 Reduction ratio sbould be decided by input shaft revolutions and outpu shaft revolutions necessary 1、先求出输送带滚轮回转数(N1) Find conveyor wheel revohutions(N1) diameter*π) 2、再求出减速机出力轴回转数(N2) Find reducer output shaft revolutions(N2) N2=N1×链轮齿数减速比 N2=N1*sprovket wheel reduction ratio 3、以三相60Hz的马达计算减速比(τ) Calculate reduction ratio of three-phase motor with frequency of 60Hz T=出力轴回转数/入力轴回转数(马达转数N) T=output shaft revolutions/input shaft revolutions(motor' s rpm N) |
1、N1=V/(D ) =9.5/(0.2 3 14)15r/min(RPM) 2、N2=N1×(26/13) =15×π × . ×2/1=30r/min(RPM) 3、N2/N=30/1800=1/60(马达转速) |
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扭力 TORQUE |
选型注意事项 | 计算范例 | |||||
决定减速比后,由使用机械之条件换算其扭力 After reduction ratio is decided,the correspoding torque can be found according to its mechanical conditions 1、先算出输送带滚轮之扭力(T1)T1=(μ×荷重 )/η1 firstly find torque(T1)of conveyance wheel ratio T1=(m*load*wheel radios)/η1 2、再换算成减速机出力轴所须扭力(T2) then convert the torque(T1)to the torque(T2)necessary for the output shaft of reducer
T2=(T1×链轮减速比)/η2"
T2=(T1*sprocket reduction ratio)/η2" |
1、T1=μ×W(D/2)/ 2、T1=(T1× )/ η1 =0.15×600×(0.2/2)/0.95=9.5kgf-m η2 =(9.5×1/2)/0.9=5.28kgf-m |
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负荷条件 LOAD CONDMONS |
选型注意事项 | 计算范例 | |||||
原动机 Prime mover |
传动机负荷等级 Driven machine Load Classifieation |
每日使用时间 Duration of Service per day |
T3=T2×K =5.28×1.26=6.6kgf-m |
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0.50hr | 2hrs | 8-10hr | 10-24hr | ||||
电动机 Electric Motor |
均一负荷 Uniform | 0.8 | 0.9 | 1 | 1.25 | ||
中冲击 Medium Shock | 0.9 | 1 | 1.25 | 1.5 | |||
重冲击 Heavy Shock | 1 | 1.25 | 1.5 | 1.75 | |||
补正扭力=减速机出力轴扭力×系数 Corrective torque = reducer shaft torque × conefficient |
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马力 Hores power |
选型注意事项 | 计算范例 | |||||
1、最后换算成马力(Hp)Hp=(补正扭力 )/716.3 |
Hp=(T3 )/716.2=(6.6 )/716.2=0.3 1/2Hp马达适用(For 1/2Hp motor) |
链轮 SPROCKET | 1 | ||||||
齿轮 CEAR | 1.25 | ||||||
三角皮带 BELT | 1.5 | ||||||
平皮带 FLATBELT | 2.5 |
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