The Impact of Upper Link Length on the Output Parameters of a Tractor Set

Abstract

The aim of the article is to find out the impact of the increase in the force in the upper link of a three‑point hitch on the performance parameters of the tractor set Claas Arion and the carried plough Pöttinger equipped with a traction roller and the cultivator Väderstad. During aggregation of the tractor with the plough with an average increase in the force in the upper link of a three‑point hitch by 25 kN, a decrease of slippage in average by 8.25 %, a decrease in fuel consumption by 1.875 ml/m3 and an increase in effective performance by 0.225 m3/s were achieved. During aggregation of the same tractor with the carried cultivator with an increase in the force by 40 kN, an average decrease in slippage by 2.64 %, a decrease in effective fuel consumption by 2 l/ha and an increase in effective performance by 0.6 ha/h were achieved. The changes in the observed parameters were demonstrably influenced by the change in the force in the upper link, which was more significantly shown during the aggregation of the tractor with the plough equipped with a traction booster.

Keywords

• three‑point hitch
• work efficiency
• fuel consumption
• tractor slippage
• wheel load