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[CN 201911348601.0] A kind of large hydraulic press movable beam plunger type leveling hydraulic system
[CN 201911348601.0] Title of a large hydraulic machine movable beam plunger type leveling hydraulic system: Application number of a large hydraulic machine movable beam plunger type leveling hydraulic system: CN 201911348601.0 Applicant: Jiangsu Institute of Technology Application Date: 2019-12-24 Patent Type: Application for the Invention The present invention discloses a large hydraulic machine movable beam plunger type leveling hydraulic system, involving the field of large hydraulic machines. The movable beam plunger type leveling hydraulic system of the large hydraulic press includes movable beam, first leveling plunger cylinder and second leveling plunger cylinder, first two-position two-way solenoid valve, second two-position two-way solenoid valve and third two-position two-way solenoid valve, first two-position two-way cartridge proportional valve island, second two-position two-way cartridge proportional valve island, third two-position two-way cartridge proportional valve island, proportional overflow valve, hydraulic pump, four first leveling plunger cylinders and four second leveling plunger cylinders are arranged at the diagonal apex of the movable beam. The large hydraulic machine movable beam plunger type leveling hydraulic system plunger cylinder stroke is twice the length of the cylinder, to avoid the equipment height is too high, the system has the characteristics of small volume, small pressure loss, accurate flow control.
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