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[CN 201821600546.0] Plate shearing machine and hydraulic system thereof
[CN 201821600546.0] A Shearing Machine and Its Hydraulic System Title: A Shearing Machine and Its Hydraulic System Application Number: CN 201821600546.0 Applicant: Anhui Donghai Machine Tool Manufacturing Co., Ltd. Application Date: 2018-9-29 Patent Type: Utility Model The utility model discloses a shearing machine and its hydraulic system, belonging to the technical field of forging machine tools. In the hydraulic system of the shearing machine of the utility model, the oil outlet of the first oil pump and the oil outlet of the second oil pump are respectively connected with the P port of the first electro-hydraulic reversing valve and the P port of the second electro-hydraulic reversing valve through pipelines., The lower cavity of the shearing cylinder, the lower cavity of the pressure cylinder, the first accumulator and the second accumulator are connected, and the port of the first electro-hydraulic reversing valve is connected with the upper cavity of the shearing cylinder through the first hydraulic control check valve, the B port is directly connected with the upper chamber of the shearing cylinder through the pipeline; the port of the second electro-hydraulic reversing valve is connected with the upper chamber of the pressure cylinder through the second hydraulic control check valve, and the B port is directly connected with the upper chamber of the pressure cylinder through the pipeline. The utility model optimizes the design of the hydraulic system of the shearing machine, which can effectively improve the processing efficiency of the shearing machine, effectively reduce the vibration of the machine tool and protect the blade, and is beneficial to prolong the life of the blade.
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