时间：2014-06-10 14:21　作者：admin　点击： 次

The maximum torque transmitted by the coupling should be less than the allowable torque value. The determination of the maximum torque should consider the acceleration/deceleration torque and overload torque required for machine braking. The calculated torque is selected, that is, it does not exceed the allowable torque value.
Calculating torque Tc: Calculate with the following formula
Tc=KT
T=9550×Pw/n=7020×PH/n
Where T=theoretical torque Nm
K—working condition coefficient, please refer to JB/ZQ4383-86 "Coupling load classification and working condition coefficient" for selection, usually 1?K?5.
Pw —drive power, Kw
PH—drive power, horsepower
n—speed, rpm
3.Determine the aperture range (Note: When the diameter of the driving and driven shafts are different, the applicable scope and characteristics of the drum gear coupling should be selected according to the large end diameter of the coupling).
4.Determine the shaft diameter and the form of the key (or expansion coupling sleeve).