Experimental Stand for the Study of the Testing Process of Plunger Hydraulic Cylinders with Energy Recovery

One of the most important problems of modern machine-building production, including at the testing stage, is energy saving. The article proposes a hydro-mechanical drive of a stand with energy recovery for testing plunger hydraulic cylinders. In order to design a stand with the best energy indicators, it is proposed to perform mathematical modelling of the hydro-mechanical drive of the stand based on the theory of three-dimensional acerbity of hydraulic systems. The stand is designed in such a way that the tests are carried out under conditions as close as possible to the operating conditions of hydraulic cylinders in their real operating conditions. In order to carry out the energy efficiency of the testing process, a test efficiency coefficient is proposed. A mathematical model of the stand is proposed, which allows a numerical experiment to identify the influence of the design and functional parameters of the stand on the main operational characteristics of the testing process. The results obtained make it possible to develop and produce a hydro-mechanical drive of a test bench for plunger hydraulic cylinders with rational parameters.