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[CN 201820481258.1] Energy-saving pump control system for hydraulic press
[CN 201820481258.1] Title of an energy-saving pump control system for hydraulic presses: Application number of an energy-saving pump control system for hydraulic presses: CN 201820481258.1 Applicant: Tianjin Tiangeng Press Co., Ltd. Application date: 2018-3-30 Patent type: Utility model The utility model discloses an energy-saving pump control system for hydraulic presses, including: a working oil pump group and a control oil pump group; the working oil pump group includes a working oil pump and a working motor; the control oil pump group includes a control oil pump and a control motor; the oil inlet of the control oil pump is connected to the oil tank through an oil pipe, and the oil outlet of the control oil pump is connected to the pump control oil port of each working oil pump through a control valve block; the oil inlet of each working oil pump The oil port is connected to the oil tank through the oil pipe, and the oil outlet of each working oil pump is connected to the master cylinder and the return cylinder through the main valve block. This patent adds an external oil control method on the basis of the traditional constant power variable pump. When the pump does not need to work with a large displacement, the displacement of the working oil pump is controlled in real time under the control of the electrical system by controlling the oil pump and the control valve block. Make it operate under a small displacement, and the system is simple and practical to change, and the power system has strong generalization ability, which effectively reduces the overall energy consumption and noise of the press.
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