Monitoring of operation loading of three-point linkage during ploughing

https://doi.org/10.17221/10/2015-RAECitation:Hujo Ľ., Tkáč Z., Tulík J., Kosiba J., Uhrinová D., Jánošová M. (2016): Monitoring of operation loading of three-point linkage during ploughing. Res. Agr. Eng., 62: 24-29.
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The research was focused on operational measurements of tractor plough tools and their subsequent utilisation and simulation under laboratory conditions by a hydrostatic simulator. In this field, theoretical and experimental works were focused on tractors, whereby the proposal of laboratory test arose out of the loading characteristics of the three-point linkage of the tractor. These characteristics were obtained from the agricultural tractor’s operation in plough aggregation. Measurements were performed with the following tools: tractor with carrier-mounted four-mouldboard plough PH1-435 and tractor with Kuhn plough manufactured by. The subject of these measurements was to obtain the time courses of forces and pressures in the hydraulic system of the three-point linkage during ploughing with carrier-mounted and semi-mounted ploughs. For objective comparison of the obtained results during experimental measurements, we determined the characteristics of measurement conditions focused on physical and mechanical properties of the soil – bulk density, moisture, penetrometer resistance and slide strength of the soil.  
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