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液压泵(Hydraulic Pump)
流量计算(Flow Rate): Q=q·n·ηv/103
功率计算(Power): H=P·Q/(612·ητ)(KW)=P·Q/(450.ητ)(HP)
符号说明(Symbol):
q: 液压泵的排量, cc/rev Displacement of pump, cc/rev
Q:液压泵的每分钟流量,1/min Flow rate of pump,1/min
n: 电机转速, rpm Speed of Electric mortor, rpm
P: 液压泵输出压力,kg/cm2 Pump Pressure, kg/cm2
H: 功率,KW(HP) Power, KW(HP)
ηv: 液压泵的容积效率,见各产品样本
Volumetric efficiency of pump, see pump catalogue
ητ:液压泵效率=容积效率x机械效率
Efficiency of pump, Volumetric efficiencyXmechanical efficiency
液压马达(Hydraulic Motor)
扭矩计算(Torque): T=△P·q·ητ/(200Π)
负荷功率计算(Power): L=n·T/975(KW)=n·T/716(HP)
符号说明(Symbol):
T: 扭矩,Kg·m Torque, Kg·m
△P:压差, kg/cm2 p2-p1, kg/m2
n: 马达转速,rpm Speed of motor, rpm
q: 液压马达的排量, cc/rev Displacement of motor, cc/rev
L: 负荷功率,KW(HP) power, KW(HP)Π: 圆周率,3.1416
单位换算(Units Conversion)
1kg/cm2=0.98bar
1bar=14.5psi
1cc/rev=0.06lin/ren
1Kg·m=9.98daNm
1HP=0.746KW |
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