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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
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Abstract: Due to the lack of joint analysis of the pumping and swinging links of the pumping system of the concrete pump truck, the commutation logic between the pumping unit and the swinging unit of the pumping system was still unclear. The dynamic characteristics and operation laws were studied.Firstly, the structure and working principle of the hydraulic control concrete pumping system were expounded. According to the measured data, a high-precision simulation model of the pumping system was established and verified. Then, based on the simulation model, the dynamic characteristics and operation law of pumping unit and swing unit were studied respectively. Finally, the coupling relationship between the pumping unit and the swing unit was analyzed, the commutation sequence of the pumping system was analyzed in detail, and the reversing sequence diagram of signal valve-swing valve-swing cylinder-main valve-master cylinder was drawn. The results show that the high-precision simulation model of the pumping system is established, the interaction mechanism between the pumping link and the swing link is clarified, and the sequential, coupling and cyclic relationship between the pumping and swing actions of the pumping system is revealed. It can provide technical reference for the design and structural optimization of concrete pumping system.
Key words: hydraulic transmission device; hydraulic control pumping system; commutation logic; swinging unit; reversing timesequence diagram; dynamic characteristics
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- Chinese Core Periodicals
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- Chinese Sci-tech Core Periodicals
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- SA, INSPEC Indexed
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- CSA: T Indexed
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- UPD:Indexed
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