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Title:
HYDRAULIC FAST FORGING UNIT
Document Type and Number:
WIPO Patent Application WO/2018/014522
Kind Code:
A1
Abstract:
Disclosed is a hydraulic fast forging unit, comprising a forging and pressing hammer head (17), a movable beam (18), a main hydraulic cylinder (16), single-rod lifting hydraulic cylinders (15, 15'), a plurality of main hydraulic pumps (1, 1', 1''), a high-pressure accumulator (5), a medium-pressure accumulator (14), an oil tank, a programmable controller (19) and a valve control system arranged on a pipeline. During the return stroke of the forging and pressing hammer head (17), hydraulic oil in the single-rod lifting hydraulic cylinders (15, 15') is supplied from the main hydraulic pumps (1, 1', 1''), and oil stored in the main hydraulic cylinder (16) is drained into the medium-pressure accumulator (14); during the idle-stroke fast dropping of the forging and pressing hammer head (17), the hydraulic oil in the main hydraulic cylinder (16) is supplied from the medium-pressure accumulator (14) independently, the oil stored in the single-rod lifting hydraulic cylinders (15, 15') is drained into the oil tank, and the main hydraulic pumps (1, 1', 1'') supply the oil to the high-pressure accumulator; and during rolling of the forging and pressing hammer head (17), the hydraulic oil in the main hydraulic cylinder (16) is supplied from the main hydraulic pumps (1, 1', 1'') and the high-pressure accumulator (5) in a superposed manner, when the pressure of the main hydraulic cylinder (16) reaches a first set value, the high-pressure accumulator (5) stops supplying oil, and the hydraulic oil in the main hydraulic cylinder (16) is supplied from the main hydraulic pumps (1, 1', 1''). The hydraulic fast forging unit has a simple structure, less equipment investment and high utilization ratio of energy.

Inventors:
ZHANG, Lianhua (No.999, Runyang Road Jian Yang,Petroleum Equipment Industrial Park, Jianh, Yancheng Jiangsu 0, 224700, CN)
ZHANG, Hui (No.999, Runyang Road Jian Yang,Petroleum Equipment Industrial Park, Jianh, Yancheng Jiangsu 0, 224700, CN)
MA, Haijun (No.999, Runyang Road Jian Yang,Petroleum Equipment Industrial Park, Jianh, Yancheng Jiangsu 0, 224700, CN)
Application Number:
CN2017/070940
Publication Date:
January 25, 2018
Filing Date:
January 12, 2017
Export Citation:
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Assignee:
ZHONGJUXIN OCEAN ENGINEERING EQUIPMENT CO., LTD (No.999, Runyang Road Jian Yang,Petroleum Equipment Industrial Park, Jianh, Yancheng Jiangsu 0, 224700, CN)
International Classes:
F15B1/02; B21J9/12; F15B1/033
Foreign References:
CN106015124A2016-10-12
CN205841339U2016-12-28
CN101249730A2008-08-27
CN102364120A2012-02-29
US6634205B22003-10-21
Other References:
MENG, XINJIA: "Numerical Simulation of Working Process and Study of Hydraulic Control Strategy Control Strategy of a Fast Forging Hydraulic Press", SCIENCE -ENGINEERING (A), CHINA MASTER'S THESES FULL-TEXT DATABASE, 15 July 2010 (2010-07-15), pages 16 - 20, XP055442804
LIU, JIE ET AL.: "Simulation of Forging Manipulator Valve-Controlled Motor System Based on Virtual Prototype", SCIENCE -ENGINEERING (A), CHINA MASTER'S THESES FULL-TEXT DATABASE, 15 August 2010 (2010-08-15), pages 25 - 26, XP009502965
WANG, CHANGLEI: "Research on Electronic Control System of 31.5 MN Fast Forging Press", SCIENCE -ENGINEERING (A), CHINA MASTER'S THESES FULL-TEXT DATABASE, 15 March 2013 (2013-03-15), pages 15 - 18, XP009502966
See also references of EP 3290718A4
None
Attorney, Agent or Firm:
WUXI SINO INTELLECTUAL PROPERTY AGENCY, LTD. (Room 1809, Tower ANo.555 Yunhe East Roa, Wuxi Jiangsu 0, 214000, CN)
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