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[CN201721314465.X] Hydraulic press energy recovery and slider gravity balance system


[CN201721314465.X] A hydraulic machine energy recovery and slider gravity balance system Title: A hydraulic machine energy recovery and slider gravity balance system Application number: CN201721314465.X Applicant: Nantong Forging Equipment Co., Ltd. Application date: 2017-10-12 Patent type: Utility model The utility model discloses a hydraulic machine energy recovery and slider gravity balance system, it mainly includes return cylinder, accumulator group, hydraulic pump, first two-way electro-hydraulic reversing valve, second two-way electro-hydraulic reversing valve, electromagnetic relief valve, back pressure relief valve, accumulator group pressure limiting relief valve and one-way valve. The utility model has the ability of continuously transforming, absorbing and releasing energy in the working process of the hydraulic press, and offsets part of the gravity of the slider assembly in the return process of the slider, which has the advantages of reducing the energy consumption of the hydraulic press under the same production efficiency or improving the production efficiency under the same energy consumption, and does not need to add additional hydraulic actuators during application, which is convenient for integration, it is especially suitable for hydraulic presses with large slider quality or fast working speed, and at the same time helps to reduce the failure rate of hydraulic presses and improve the service life.

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