Functional properties of tillers working tools

This theses provides an overview of tillers´ working tools used in current tillage technologies for soil loosening to varying depths. A more detailed overview was made to describe current solutions for the design of tillers for shallow and medium depths. Literary insights into the quality of work and energy requirements of tillers´ working tools are presented. The work also includes the results of field measurement of draught force and quality evaluation of the work of three selected prototypes of chisel tines. This results were used to find out the relationship between specific draught and soil-aggregate size distribution on different widths of chisels and their working depth. For all widths of tines, a significant growth in specific draught was found with increasing working depth. The specific draught significantly correlated with the cross-section area of the loosened soil (correlation coefficient 0,808)