Návrh hydrostatického pohonu pojezdu malého zemního stroje

Abstract

The thesis deals with design of hydraulic circuit for small ground machine. The design is concentrated to a hydrostatic driving mechanism of small ground machine, which is solved as a closed hydraulic circuit. The second main part of this thesis is aimed to a hydraulic system for lifting of working arm and additional function which are solved as an non – closed hydraulic circuit. The chapter ,,An Introduction” generally describes multi – engine drive units, their synchronization and solving structure. Next chapter introduces my own design of driving mechanism including power analysis with following determination of parameters for the hydrostatic engines, pumps and their operating. The Separate chapter discuss about an organization in an accessories carrier, there is also calculated the kinematics, the linear hydraulics motor selection and operating and safety elements in this chapter. The thesis contains also design and summary of a combustion engine used as an driving unit of small ground machine.