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http://dx.doi.org/10.7839/ksfc.2015.12.2.039

Development and Verification of Analytical Model of a Main Control Valve  

Kim, D.M. (Department of Mechanical Engineering, Graduate School, Gachon University)
Lee, J.M. (Department of Mechanical Engineering, Graduate School, Changwon University)
Jung, W.J. (Department of Mechanical Engineering, Graduate School, Gachon University)
Jang, J.S. (Department of Mechanical Engineering, Graduate School, Gachon University)
Publication Information
Journal of Drive and Control / v.12, no.2, 2015 , pp. 39-48 More about this Journal
Abstract
In order to control the actuators of hydraulic machinery such as excavators, various control valves are typically assembled in a single block. Such a control block is called a main control valve(MCV). In this paper, we analyzed the working principle and the particular purpose of the design of all valves included in the MCV system. To Examine the reliability of the analysis model, the pressure drop of the MCV at each port was measured. The authors developed an analytical model of the control valve(main spool, load poppet, pressure relief, make up, and regeneration). The authors considered the notch shape of the spool while developing the analytical models of the main spool valve. Most importantly, at the stage before the analysis model was applied in the design tuning, the reliability was ensured by comparing the analysis results with the test results. This paper showed a process of developing an analysis model that can be utilized in the design and tuning stages.
Keywords
Main Control Valve; Excavator; Notch; Analysis Model; SimulationX;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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