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[CN 201810379615.8] Energy-saving hydraulic pad control system for hydraulic press
[CN 201810379615.8] An energy-saving hydraulic pad control system for hydraulic presses Title: An energy-saving hydraulic pad control system for hydraulic presses Application number: CN 201810379615.8 Applicant: Tianjin Tiangeng Press Co., Ltd. Application date: 2018-4-25 Patent type: Invention application The present invention discloses an energy-saving hydraulic pad control system for hydraulic presses, belonging to the technical field of hydraulic presses, including: hydraulic cushion cylinder, charging valve, hydraulic cushion control valve block, pressure sensor, accumulator, accumulator safety valve group, hydraulic cushion jacking pump group and power oil tank; the hydraulic cushion control valve block is located above the power oil tank, the hydraulic cushion control valve block is connected to the hydraulic cushion cylinder and the accumulator through oil pipe, the hydraulic cushion moves down with the slider passively, the oil in the hydraulic cushion cylinder is discharged into the hydraulic cushion control valve block through the charging valve, and then into the accumulator through the pipeline, when jacking, the oil in the accumulator reaches the hydraulic cushion cylinder through the hydraulic cushion control valve block to drive the hydraulic cushion to jack up. The invention adopts the principle that the accumulator stores stretching energy on the basis of the traditional hydraulic pad control system, and uses the stored energy to push the hydraulic pad back to the stretching position when the hydraulic pad needs to be pushed up, which reduces system heating, It saves a large displacement hydraulic pad pump group, and realizes the results of reducing heat generation and energy saving.
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