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Vliv nastavení regulační hydrauliky traktoru na výstupní parametry orební soupravy
Remeš, Jan
The present thesis entitled "Impact of the tractor control hydraulics setting on the output parameters of the tilling system" in its reference part surveys the current state of the design of hydraulic systems in agricultural tractors. The practical part of the thesis is focused on implementation and evaluation of experimental measurement. The measurement employed a tilling system featuring a tractor Class Axion 850 and a four-furrow mounted plough Kverneland EG 85 Variomat. The goal was to identify the effects of various types of hydraulic system controls on the fuel consumption, drive slip and tilling system performance. The measured values have been processed and presented in tables and graphics. The conclusion has been formulated on the basis of the identified results.
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Vliv připojení nesených strojů v tříbodovém závěsu na výstupní parametry traktorových souprav
Kopecký, Petr
In the literary part of the diploma thesis, a brief overview of the current state in the tractor design has been done, concentrating onto such elements that lead to lowering of fuel consumption. The practical part is based on the realized solution. The target of the measurement was to prove the influence of adjusting of the three-point hitch onto the output parameters of ploughing sets, consisting of the Zetor Forterra 140 HSX tractor and Kverneland 150 B mounted plough or Kverneland PN 100 semi-mounted plough. The essence of the measurement was gradual shortening of the upper linkage of the three-point hitch, whereas simultaneously with shortening of the linkage, the force on the linkage was rising. The force was measured by means of strain gauge Hotinger U2A. In case of the mounted plough it has been proved that shortening of the upper linkage causes rising of the force. That shifts part of the plough weight onto the rear wheels of the tractor, resulting in lower wheel slipping and lower fuel consumption.
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