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[CN 201810091894.8] Hydraulic system for anti-partial load hydraulic rolling metal plate shearing machine
[CN 201810091894.8] Title of hydraulic system for anti-partial load hydraulic roll-cutting metal plate shearing machine: Application number of hydraulic system for anti-partial load hydraulic roll-cutting metal plate shearing machine: CN 201810091894.8 Applicant: Taiyuan University of Technology Application Date: 2018-1-30 Patent Type: Application for the Invention The present invention relates to the technical field of hydraulic roll-cutting metal plate shearing machine, in particular to a hydraulic system for anti-partial load hydraulic roll-cutting metal plate shearing machine. It includes a first servo hydraulic cylinder circuit, a second servo hydraulic cylinder circuit and an anti-bias load circuit hinged with the frame and the upper tool rest respectively. In the process of rolling shear, the first servo hydraulic cylinder circuit and the second servo hydraulic cylinder circuit to ensure the accuracy of the tool position, while the servo hydraulic cylinder rod chamber pressure precise control and timely adjustment. The anti-partial load circuit balances the weight of the upper tool holder, reduces the partial load force on the piston rod, and prolongs the service life of the servo hydraulic cylinder. At the same time, it can prevent the upper tool holder from leaking due to the hydraulic system of the servo hydraulic cylinder or pipeline rupture. Sudden falling effectively protects the damage and personal safety of the tool holder. The beneficial effects of the present invention are: the rolling shearing process is extremely stable through the use of the anti-eccentric load loop, and has the characteristics of simple structure, strong practicability and easy implementation.
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