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[CN 201621228640.9] Hydraulic control system of sliding beam guide device of hydraulic press
[CN 201621228640.9] Hydraulic Control System Title of Hydraulic Machine Sliding Beam Guide Device: Hydraulic Control System Application Number of Hydraulic Machine Sliding Beam Guide Device: CN 201621228640.9 Applicant: Ningbo Hengli Hydraulic Co., Ltd. Application Date: 2016-11-14 Patent Type: Utility Model The utility model relates to a hydraulic control system of hydraulic machine sliding beam guide device, which is characterized in that it includes eight piston hydraulic cylinders, and a displacement sensor is installed on the piston hydraulic cylinder, it is divided into two groups, each group of four piston hydraulic cylinders, and the rodless chambers of the two piston hydraulic cylinders located on the diagonal are connected through the oil circuit. Servo proportional valve, each servo proportional valve correspondingly controls a group of piston hydraulic cylinders, the oil inlet P of each servo proportional valve is connected with the high-pressure oil source PH, and the oil return port T of each servo proportional valve is connected with the oil return tank. The oil outlet A and oil outlet B of each servo proportional valve are divided into two channels, one is connected to the rodless chambers of the two piston cylinders located at one diagonal, and the other is connected to the return tank. It is a hydraulic control system of the sliding beam guide device of the hydraulic press that can realize the leveling of the force couple, so that the guide device using the hydraulic control system is suitable for both slow hydraulic presses and fast hydraulic presses.
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