The experimental research of the influence of accumulator to mill control precision

Abstract

Oil source made up of constant pressure variable displacement pump, accumulator, and pipeline is widely used to provide stable pressure for electro-hydraulic control system in practical engineering. Based on the experiment, the relationship between pressure & volume of the accumulator at inlet of the valve and control precision is analyzed in detail, and coupling rules between the load variation and the pressure ripple of oil-source are obtained. Coupling rules can give reference for selecting pressure & volume of the accumulator according to the requirement of system control precision, which can further improve control precision and product quality by optimizing equipment parameters.