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[CN 201620191225.4] Quick trimming hydraulic shearing machine and its hydraulic driving system
[CN 201620191225.4] A Fast Trimming Hydraulic Shearing Machine and Its Hydraulic Drive System Title: A Fast Trimming Hydraulic Shearing Machine and Its Hydraulic Drive System Application Number: CN 201620191225.4 Applicant: Anhui Donghai Machine Tool Manufacturing Co., Ltd. Application Date: 2016-3-11 Patent Type: Utility Model The utility model discloses a fast trimming hydraulic shearing machine and its hydraulic drive system, belonging to the technical field of shearing machines. The hydraulic drive system of the quick trimming hydraulic shearing machine of the utility model comprises an oil tank, an oil pump, a hydraulic cylinder and a shearing blade connected with the hydraulic cylinder. The oil pump is connected with the oil pump motor unit, and the oil inlet pipe of the oil pump is connected with the oil tank. On the one hand, the oil outlet pipe of the oil pump is connected with the P port of the electromagnetic reversing valve, on the other hand, the overflow valve is connected with the oil tank through the oil return pipe, on the other hand, it is connected with the T port of the electromagnetic reversing valve; the port of the electromagnetic reversing valve is connected with the upper cavity of the hydraulic cylinder, and the B port of the electromagnetic reversing valve is connected with the lower cavity of the hydraulic cylinder through the first hydraulic control check valve, A spring is fixed in the upper cavity of the hydraulic cylinder. The utility model can effectively ensure the high-speed shearing of the blade, greatly improve the working efficiency of the hydraulic shearing machine, improve the shearing quality of the obtained workpiece, and prevent burrs.
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