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[CN 201710197681.9] Passive dynamic leveling control system of hydraulic press and control method thereof
[CN 201710197681.9] A passive dynamic leveling control system of a hydraulic press and its control method Title: A passive dynamic leveling control system of a hydraulic press and its control method Application number: CN 201710197681.9 Applicant: Fuzhou University Application date: 2017-3-29 Patent type: Invention application The present invention relates to a passive dynamic leveling control system of a hydraulic press, including controller, constant pressure oil source P1, high pressure oil source P2, oil tank, first, second, third and fourth displacement sensors, first dynamic leveling hydraulic subsystem S1, second dynamic leveling hydraulic subsystem S2, third dynamic leveling hydraulic subsystem S3, fourth dynamic leveling hydraulic subsystem S4, the first, second, third and fourth dynamic leveling hydraulic subsystems are all composed of the first check valve, the first, second and third solenoid ball valves, and the first, second and third leveling relief valves. The oil inlet of the first, second and third solenoid ball valves are connected to the rodless cavity of the first leveling hydraulic cylinder; the oil outlet of the first, second and third solenoid ball valves are respectively connected to the oil inlet of the first, second and third leveling relief valves; the outlet ports of the first, second and third leveling relief valves are connected to the oil tank. The passive dynamic leveling control system of the invention has strong anti-interference ability and high stability.
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