Regarding the selection of gear turntable motors, please give me some advice.
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This post was last edited by a609934753 on 2019-7-12 15:36 Hello everyone, I have been designing a turntable equipment recently, and I don’t know much about the motor selection behind it. The conclusions drawn by different friends for help are also different. I hope the seniors on the forum can help. If possible, can you attach the calculation results? Thank you. The relevant design parameters are shown in the figure.
This post was last edited by a609934753 on 2019-7-12 21:28. I attached the motor power obtained by my own calculation results. The calculation process is as follows: Load calculation: inertial momentum of the circular cone itself: It=1/2 * Mt * Rt^2=1/2 * 750 * 3.225^2≈3900kg·m^2 Momentum of inertia of the load: Iw=Mw * Rw^2=2000 * 1.5^2=4500kg·m^2 The rotation speed of the circular cone is nt=0.333rpm, then the average angular velocity is about 2°/s, the acceleration time is 1s, then the angular acceleration a=2°/s^2, converted into radians, it is expressed as a=2/57.3(rad/s^2)≈0.035(rad/s^2), then the acceleration and deceleration torque T1=I * a=(It+Iw) * a=(3900+4500) * 0.035=294n·m≈0.3kn·m Friction torque T2=F friction * Rt=(Mt+Mw) * g * u * 3.225=(2000+750) * 9.8 * 0.08 * 3.225=6953.1≈6.95kn·m Total load torque Ttotal=T1+T2=7.25kn·m Ptotal=Ttotal * nt/9550=0.25KW The safety factor is 1.2, the usage factor is 1.7, and the motor power P=0.25 * 1.2 * 1.7=0.51KW Is this calculation correct? If this is correct, how should I choose after knowing the motor power?