Navegando por Autor "Santos, Atos Siqueira"

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Avaliação de parâmetros de trabalho de um trator new holland modelo TL75E -4X2 TDA
(2019) Santos, Atos Siqueira; Teixeira, Carlos Alberto; http://lattes.cnpq.br/8235740394746329; http://lattes.cnpq.br/5402074701580023
Large areas occupied by crops were and still are favored by the mechanization of the crops, being the speed of work of the machines one of the most important factors in the effective working capacity of the mechanized assembly, which expresses the time, towork a certain area. The velocities measured in the field, collected according to the time the tractor took to cover a thirty-meter path, delimited by beacons, were compared with speeds provided by the manufacturer in the decal attached to the tractor paralama used in this model work New Holland TL75E, these speed comparisons were by different combinations of range, gear and engine speed, speeds measured in the field were found to be predominantly lower than those provided by the manufacturer in a range of8 to 23% less in the 32 combinations of range, gear and rotation. The manufacturer states that at approximately 2200 rpm in the engine rotation, the output on the shaft of the power take-off (TDP) is 540 rpm, however, through measurements with the use of tachometer it was found that in this engine rotation the output in the TDP was an average of less 13 rpm than that reported by the manufacturer for this engine speed. Losses are related to periodic and preventive maintenance of the tractor as well as the natural wear and tear of the engine's internal components, such losses can adversely affect the yields of agricultural operations.