NDLI: Research on Characteristics of the Piloted Follow-up Load Control Valve in Automobile Crane Luffing System

Content Provider	IEEE Xplore Digital Library
Author	Haibo Xie Guolong Zhang
Copyright Year	2013
Description	Author affiliation: State Key Lab. of Fluid Power Transm. & Control, Zhejiang Univ., Hangzhou, China (Haibo Xie; Guolong Zhang)
Abstract	Automobile crane luffing system is a variable load system. While the boom is being lowered, the constantly changing geometry results in a steadily increasing load pressure acting on the luffing cylinder. This requests the load control valve to have perfect performance including opening characteristic, jiggle characteristic, load pressure over-compensation characteristic and dynamic response characteristic. However the luffing hydraulic system with traditional load control valve has the problems of high system pressure, large impact and easily vibrated. This paper introduces the working principle of a new piloted follow-up load control valve first, and then develops a simulation model, which is validated by a series of experiments conducted on the automobile crane. Based on theory research and simulation, the working mechanism is analyzed and it demonstrates that the piloted follow-up load control valve have a opening characteristic independent of load, good jiggle characteristic under low control pressure, load pressure over-compensation, and smooth dynamic response without overshoot, which are all essential in automobile crane luffing system.
Sponsorship	Central South Univ.
Starting Page	887
Ending Page	892
File Size	330038
Page Count	6
File Format	PDF
ISBN	9781467356527
DOI	10.1109/ICMTMA.2013.221
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-01-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pistons Cranes Orifices luffing system Valves Automobile crane Springs load pressure over-compensation jiggle characteristic Load flow control piloted follow-up load control valve Load modeling
Content Type	Text
Resource Type	Article

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