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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
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No.9 Gaoguannong,Daxue Road,Hangzhou,China
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310009
E-mail:
meem_contribute@163.com
Abstract: Aiming at the problem that the dynamic response performance of a special high quality combined cartridge valve for off shore hydraulic piling hammer needs to be optimized, the hydraulic resistance factors affecting the dynamic response characteristics of the combined cartridge valve were studied. Firstly, the structure of the hydraulic pile hammer and the working principle of the hydraulic system , and the hydraulic resistance position in the hydraulic system were introduced. Then, the hydraulic resistance theory was introduced, and the mechanism of the damping effect on the dynamic response of the combined cartridge valve was analyzed, and the opening motion equation of the cartridge valve spool was established. Finally, the simulation model of the combined cartridge valve was established. Taking the minimum dynamic response time of the combined cartridge valve as the optimization goal, the hydraulic resistance was parameterized by adjusting the damping hole size in the hydraulic bridge. The research results show that the influence of hydraulic resistance on the dynamic response of the combined cartridge valve is analyzed by simulation, and the optimal array of hydraulic resistance selection scheme of the cartridge valve is obtained. In the array of selection schemes, the response time of P valve, R valve and S valve can reach 0.12 s, 0.08 s and 0.07 s, respectively. It verifies the rationality of the selection of the initial value of the liquid resistance, and provides a theoretical basis for improving the dynamic response characteristics of the combined cartridge valve.
Key words: hydraulic control valve; hydraulic piling hammer；quick response bridge; liquid resistance matching; pilot valve；resistance hole；AMESim
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- Chinese Core Periodicals
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- Chinese Sci-tech Core Periodicals
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