Експериментальні дослідження перехідних процесів у гідроприводі чутливому до навантаження

Abstract

Experimental validation of the operability of the developed load-sensing hydraulic drive. Experimental studies were performed by the method of oscillography of transient processes from pressure and rotation sensors, using analog-to-digital transducer, and saving data to PC. Test stand has been developed for studying working processes in LS hydraulic drive during its operation in the hydraulic engine flow rate regulation mode. Taking into account that a special feature of such drives is maintaining constant pressure difference between the loaded hydraulic engine and hydraulic pump, which provides pressure-independent flow rate control, registration of pressure values at the corresponding parts of the circuit as well of the of the flow rate of hydraulic motor, connected in parallel, is provided at the test standThe obtained results of the research has made it possible to determine the influence of the balancing pressure difference on the transient process time and pressure overshoot value in the hydraulic drive during its operation in the hydraulic engine flow rate regulation mode. The developed hydraulic drive makes it possible to perform experimental studies of the working processes with hydrauluic units, having various characteristics, in different operation modes.