Dynamika hydraulického obvodu brusky předvalků

Abstract

This thesis deals with the hydraulic circuit dynamics of the blank grinder grinding table travel. In the preamble part there is a brief description of the grinder and problems arising from its operation. In the next chapter means for the hydraulic circuit diagnostics are described. This chapter follows up with another chapter in which a trouble cause of thegrinder is specified from the measured pressures and electric current course. Anotherpart deals with measuring of the time-response characteristic and its ecaluation including evaluation of the frequency spectrum. For hydraulics of the grinding table travel a model has been compiled in the SimHydraulics program. In conclusion a solution for the hydraulic circuit optimization has been suggested and for this optimized solution a new model of the hydraulic circuit has been complied.