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Vliv seřízení tříbodového závěsu traktoru na výstupní parametry orebních souprav
 Kratochvíl, Ivo
The aim of the thesis "Influence of adjustment of three-point tractor hitch on output parameters of tractor sets" was to elaborate the current state of the tractor construction and to find out above all, the influence of adjustment of the three-point hitch of the tractor and setting of the working machine on output parameters of tractor sets. Part of the work was the experimental measurement of a total of three tractor sets with full mounted depth cultivator, full mounted plow and semi-mounted plow. For the first tractor set, the effect of thrust and pressure in the upper pull rod of three-point tractor hitch on the output parameters of the tractor set with depth cultivator was determined. For the second plow tractor set, the influence of the length of the upper pull rod of three-point tractor hitch on the parameters of the plow tractor set was determined. In the third plow tractor set with a semi-mounted plow equipped with a traction cylinder, the influence of the pressure in the traction cylinder on the output parameters of the plow tractor set was determined. From all three measurements, the results have been achieved that when the three-point tractor hitch is correctly adjusted, it reduces slippage, increases surface performance and decreases fuel consumption.
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Vliv zatížení hnacích kol traktorů na výstupní parametry orebních souprav
 Výravský, Tomáš
The present master thesis deals with the topic of load applied to driving wheels of tractors and its impact on output parameters of tilling systems. Introduction describes the advantages and disadvantages of tillage. It briefly presents its history, evolution and possible improvements of its parameters by correct plough and three-point linkage system of tractor settings. The following part explains the impact of load distribution between tractor driving wheels on its thrust properties. Some possibilities of improving load distribution between driving wheels are also specified and described here. Special attention was dedicated to improvement of load distribution by transferring part of the plough weight to the tractor. The practical part of the thesis explored the impact of force in upper linkage of three-point linkage system of tractor on the force transfer and subsequently on the output parameters of tilling systems. Two measurements were processed in the present master thesis, one focusing on the total additional loading or tractor rear axle and one focused on balancing the load difference between the right-hand side and left-hand side wheel of rear axle. The measured values were processed in tabular form and further evaluated by regression analysis. Conclusion was formulated based on the identified results.
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