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Sodobni in izpopolnjeni gorski traktorji omogočajo štiri različne načine krmiljenja koles. Namen diplomskega dela je podrobneje proučiti vpliv različnih načinov krmiljenja na zdrs pri delu v strmini. Proučevali smo tri različne načine krmiljenja, pri čemer smo s pomočjo meritev ugotovili pogonska kolesa imajo pri krmiljenju pasji hod najmanjši zdrs, ta znaša pri hitrosti vožnje 1,08 m/s v povprečju 5,96 % pri krmiljenju vseh štirih koles ob hitrosti 1,03 m/s v povprečju 7,27 % in pri krmiljenju samo prednjih koles in hitrosti vožnje 1,01 m/s največji zdrs, ki znaša v povprečju 8,07 %. Ugotovili smo, da ima pri delu v strmini krmiljenje vseh štirih koles velik pomen zaradi večje okretnosti in manjšega zdrsa v primerjavi s krmiljenjem le prednjih koles. Modern and advanced mountain tractors allows four different modes of steering wheels. The purpose of a graduate work was to further examine the impact of different ways to control the slip in the work on the slope. We studied three different methods of control, in which we found by means of measurements that the smallest slip was measured, when steering with so called crab - steering. The slip was 5,96 % at average speed of 1,08 m/s. When steering with all four wheels the slip at average speed of 1,03 m/s was 7,27 %, and the biggest slip was measured when steering with only front wheels. The slip was 8,07 % at the average speed 1,01 m/s. The conclusion is, that when working on step slope, it is useful to have all wheel steering, because of bigger agility and smaller slip compared with only front wheel steering. |
