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[CN 201610744844.6] Hydraulic system for realizing stepless precise speed regulation of hydraulic press
[CN 201610744844.6] A hydraulic system for realizing stepless and precise speed regulation of hydraulic machine Title: A hydraulic system for realizing stepless and precise speed regulation of hydraulic machine Application number: CN 201610744844.6 Applicant: Nantong Forging Equipment Co., Ltd. Application date: 2016-8-29 Patent type: Invention application The present invention discloses a hydraulic system for realizing stepless and precise speed regulation of hydraulic machine in a large range, it mainly includes the main pump source, auxiliary pump source, large-scale speed control module, small-scale speed control module, the first two-way ball valve, the second two-way ball valve, the third two-way ball valve, the main hydraulic cylinder and the slider. The combined application of the proportional variable flow main pump source, the large-range speed control module and the small-range speed control module makes the present invention have a three-stage speed control function, a wide speed adjustment range, high precision, and can fully meet the various working requirements of the hydraulic press; The hydraulic system has less throttling loss and has better energy-saving characteristics.
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