How is the servo motor driver selected? What is the basis? Are you clear? Dalan hydraulic motor Xiaobian also only knows the fur, it is summarized. I hope to help you!
How is the servo motor driver selected? What is the basis? Are you clear? Dalan hydraulic motor Xiaobian also only knows the fur, it is summarized. I hope to help you!
1. Calculate the torque of the hydraulic oil pump and motor
1 rated displacement Q of the oil pump, produces a certain pressure P, the required torque T oil pump = 0.0159 * P * Q (Nm).
2 The torque of the servo motor matched with the oil pump is: T motor = T oil pump / 1.5.
3Eg: The displacement of one oil pump is 30ML/R, and the rated pressure is 21MPA. The required oil pump torque is T=0.0159*30*210=100Nm. The matched motor torque T = 100 / 1.5 = 66.67 Nm.
4 Because the motor has a certain overload capacity, and because the hydraulic system is not always in the maximum torque state. Therefore, the torque required by the oil pump does not need to be completely provided by the rated torque of the motor.
5 According to the current status of servo motors, this overload factor is usually about 1.5 times.
6 Due to the material formed by the hydraulic machinery, the process conditions are different. For the high-speed and high-pressure process, the overload factor should not exceed 1.3 times.
2, servo motor driver selection
1 Generally, the maximum current during holding pressure, the holding current and the maximum system pressure, the rated motor speed, and the displacement of the pump have related reference values;
2 holding current = maximum current * system pressure / maximum pressure * rated speed / maximum speed * oil pump displacement / maximum displacement.
3 rated current = holding current / 1.4.
----- Editor-in-Chief: Dalan Oil Pump Motor 02-Procurement Consultant
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