Teorie a konstrukce mlátících ústrojí sklízecích mlatiček

The thesis describes the history and the history of threshing grain combine harvesters. The paper describes the types of threshing unit. They are given energy indicators, the main technical data threshing system and their calculation. The paper gives an overview of the performance categories, sales, capital costs, operating costs and on the percentage of combine harvesters on the market today. The following describes the structure threshing device manufacturers marks Case, Claas, John Deere and New Holland, and there is shown a graphical comparison of their technical parameters. The work describes the mass flow threshing mechanism. Theoretical calculation is expressed by the dependence of flow quantity on the length of the threshing drum and then compared with the actual measured values