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Alpha Beta Inc. has a requirement of transferring material containers from a digging site to a hauling station. To cater needs, a system consisting of motor and a gearbox must be created. The application must prove to reduce costs and efficient.
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Alpha Beta Inc. has a requirement of transferring material containers from a digging site to a hauling station. To cater needs, a system consisting of motor and a gearbox must be created. The application must prove to reduce costs and efficient.
The motor is selected by taking into consideration the power efficiency, cost efficiency, and overall efficiency of the motor.
Gearbox speed range: 10.26 rpm to 9.06 rpm. So, we can determine the gearbox ratio as follows: For Ngb =10.26 rpm , GBr = Nm / Ngb = 500/10.26 = 48. For Ngb =9.06 rpm , GBr = Nm / Ngb = 500/9.06 = 55. Gearbox ratio is 90: Selected gearbox is PFA20 – 120ANM by Ondrivesus
Crosschecking using System power loss or overall efficiency as follows:
To conclude with, the selected motor ranging the Linear speed (S) between 80-99 ft/min for the selected load value between 30000-34000 lbs and the range of pressure between 2500-3500 psi will give the system overall efficiency between 80.14% to 90.83%.
Gearbox: https://www.mscdirect.com/product/details/ Hydraulic motor: https://www.regalrexnord.com/products/electric-motors/ac-motors-nema/pump- motors/hydraulic-motors/20-hp-hydraulic-motor-3-phase-1800-rpm-230-460-v-256-frame-tefc-851042-