Compared with the traditional servo hydraulic press, what are the advantages of the new servo hydraulic press?
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2021-07-09
The servo hydraulic system of the new servo hydraulic press is an energy-saving hydraulic press that uses a servo motor to drive the main drive oil pump, reduce the control valve circuit, and control the slider of the hydraulic press. It is mainly composed of a moving plate, a moving worktable, a guide column, and a hydraulic system., Electrical system, pressure sensor, pipeline and other parts, suitable for stamping, die forging, press fitting, straightening, etc. Compared with the traditional servo hydraulic press, the maintenance of the new servo hydraulic press is more convenient. This is because the proportional servo hydraulic valve, speed regulating circuit and pressure regulating circuit in the hydraulic system are canceled, and the hydraulic system is greatly simplified. Therefore, the cleanliness requirement of hydraulic oil is far less than that of hydraulic proportional servo system, which reduces the impact of hydraulic oil pollution on the system. In addition, what advantages does the new servo hydraulic press have?
High efficiency of servo hydraulic press: through proper acceleration and deceleration control and energy optimization, the speed of servo control hydraulic press can be greatly improved, and the working beat is several times higher than that of traditional hydraulic press, reaching 10/min ~ 15/min;
2. The servo hydraulic press has high degree of automation, good flexibility and high precision: the pressure, speed and position of the servo-driven hydraulic press are fully closed-loop digital control, with high degree of automation and good precision. In addition, its pressure, speed programmable control, to meet the needs of various processes, but also can achieve remote automatic control;
3, servo hydraulic machine energy saving: servo hydraulic machine compared with ordinary hydraulic machine, the overall control system does not contain proportional servo valve or proportional pump link, service drive hydraulic machine with energy saving, low noise, small temperature rise, good flexibility, high efficiency, convenient maintenance and other advantages, can replace most of the existing ordinary hydraulic machine, has a broad market prospects. Compared with the traditional hydraulic press, the energy-saving effect is remarkable. According to the different processing technology and production rhythm, the servo-driven hydraulic press can save 30% ~ 70% of electricity compared with the traditional hydraulic press;
4. The servo hydraulic press generates less heat and reduces costs: since the hydraulic system of the servo-driven hydraulic press has no overflow heating and no flow when the slider is stationary, there is no hydraulic resistance heating, and the calorific value of the hydraulic system is generally 10% ~ 30% of that of the traditional hydraulic press. Due to the low calorific value of the system, most servo-driven hydraulic presses may not have a hydraulic oil cooling system, and some of the larger calorific value can be set up with a small power cooling system. Because most of the time the pump is zero speed and heat is small, the oil tank of the servo-controlled hydraulic press can be smaller than that of the traditional hydraulic press, and the oil change time can also be extended, so the hydraulic oil consumed by the servo-driven hydraulic press is generally only about 50% of that of the traditional hydraulic press;
5. Low noise: Servo-driven hydraulic oil pumps generally use internal gear pumps or high-performance vane pumps. Traditional hydraulic presses generally use axial piston pumps. Under the same flow and pressure, the noise of internal gear pumps or vane pumps is better than Axial piston pumps are 5dB ~ 10dB lower. The motor of the servo-driven hydraulic press runs at the rated speed during pressing and returning, and its emission noise is 5dB ~ 10dB lower than that of the traditional hydraulic press. When the slider is quickly lowered and the slider is stationary, the servo motor speed is 0, so the servo-driven hydraulic press basically has no noise emission. In the pressure holding stage, due to the low speed of the motor, the noise of the servo-driven hydraulic press is generally less than 70dB, while the noise of the traditional hydraulic press is 83dB ~ 90dB. After testing and calculation, under normal working conditions, the noise generated by 10 servo hydraulic presses is lower than that generated by an ordinary hydraulic press of the same specification.
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