The article presents the results of theoretical research on influence design parameters output characterictics a hydraulic hammer. hammer under study has percussive mechanism permanent pressure-type structure with spool free control unit. A model unit been developed. mathematical is presented. oscillogram resulting from studies, which defines operation mechanism, range rational zones for select...

This research aims to optimize the working parameters of sawtooth-type recovery device for cotton fallen on ground enhance cotton’s effect. Firstly, cotton-picking mechanism and unloading were designed. The movement trajectory serrated tooth end designed device, non-missing picking condition, condition noted. Secondly, virtual simulation technology developed a model interaction process between ...