Recently, the oil hydraulic control system has been widely applied to themining industry, civil engineering and construction industry. Especially, robotizedmachines have been required to improve labor-saving, safety and productionin mining and construction works.
The aim of this study is to design the oil hydraulic multi-function cylinderwhich corresponds to the robotized machines. The experiment was made withvariations of the supply pressure, the vibration frequency and the bias voltageunder some levels of constant loads. As a result, the quantitative propertiesaffecting the fundamental properties of oil hydraulic multi-function cylinder, namely, the vibration amplitude, feed speed, the maximum pushing force andthe acceleration were made clear.
This paper is to investigate the digging effect in case that the oil hydraulicmulti-function cylinder is applied to the experimental system assumed as anactual hydraulic excavator, and the quantitative properties of the vibrationcylinder caused by the multi-function cylinder were compared with those of novibrationcylinder.