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[CN 201721581222.2] Hydraulic plate shearing machine and hydraulic system thereof


[CN 201721581222.2] A Hydraulic Plate Shearing Machine and Its Hydraulic System Title: A Hydraulic Plate Shearing Machine and Its Hydraulic System Application Number: CN 201721581222.2 Applicant: Anhui Donghai Machine Tool Manufacturing Co., Ltd. Application Date: 2017-11-23 Patent Type: Utility Model The utility model discloses a hydraulic plate shearing machine and its hydraulic system, belonging to the technical field of plate shearing machine. The hydraulic system of the hydraulic shearing machine of the utility model includes an oil pump, an oil tank, a main oil cylinder and an auxiliary oil cylinder, and also includes an electro-hydraulic reversing valve, a two-position three-way reversing valve and a pressure relay. The oil inlet is connected with the oil tank, and the oil outlet is connected with the upper cavity of the main oil cylinder, the B port of the electro-hydraulic reversing valve and the pressure relay, its A port is connected with the lower cavity of the main oil cylinder, and its T port is connected with the oil tank; the P port of the two-position three-way reversing valve is connected with the oil outlet of the oil pump, and its B port is connected with the inner cavity of the auxiliary oil cylinder. The shearing machine of the utility model can automatically switch the circuit of the hydraulic system according to the requirements of the plate material to be cut, so as to meet the rapid shearing of the thin plate and the slow shearing of the thick plate.