Transactions of Materials and Heat Treatment

Title：Design and test on hydraulic impact device for a large hydraulic equipment

Authors： Ren Fenglan1 2 Wu Kun2

Unit： Key Laboratory of New Processing Technology for Nonferrous Metals and Materials Guangxi

KeyWords： large hydraulic equipment hydraulic impact unloading impact measurement and control system impact performance

ClassificationCode：TH137.9

year,vol(issue):pagenumber：2022,47(12):161-167

Abstract：

For the problem that the hydraulic impact of large hydraulic equipment will cause huge harm to equipment during the working process, a hydraulic impact device for a large hydraulic equipment was designed. Then, the functions and index requirements of the device were introduced, and the typical components were calculated and selected. Furthermore, the hydraulic impact was calculated, and the design of its electrical control system, measurement and control system and human-computer interaction system based on HMI was completed. And two sets of tests were carried out by taking the unloading impact pressure test station as an example. The results show that when the system pressure is 3 MPa and the opening degree is 50%, the flow impact is about 15% greater than that when the opening degree is 100%. However, when the pressure is 5 MPa, it is the opposite. When the opening degree is 50%, the flow impact is about 30% less than that when the opening degree is 100%. Thus, the designed hydraulic impact device for a large hydraulic equipment realizes the analysis and test of the performance parameters for hydraulic impact, which is of great significance on the analysis of hydraulic impact function of large hydraulic equipment and reducing the impact of hydraulic impact on the equipment.

Funds：

高性能复杂制造国家重点实验室自主研究项目（2013ZZTS030）；湖南省自然科学基金资助项目（2020JJ7001）

任丰兰（1976-），男，硕士，副教授 E-mail：fenglanren@163.com

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