Wheel drive torque of an agricultural tractor submitted to traction tests
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Data
2015-09-01
Autores
Fiorese, Diego A.
Sandi, Jefferson [UNESP]
Marasca, Indiamara [UNESP]
Morelli-Ferreira, Francielle
Spadim, Emanuel R. [UNESP]
Lancas, Kleber P. [UNESP]
Título da Revista
ISSN da Revista
Título de Volume
Editor
Univ Federal Campina Grande
Resumo
The determination of the torque in wheeled agricultural tractors complements the traction tests and allows the calculation of the distribution of tractive efforts between the axles. The main objective of this research was to determine the torque demand on the driving axles of a tractor with power of 89 kW, seeking to evaluate the torque demanded for the mechanical front wheel drive (MFWD) use, for different gears, and according to the increase of the drawbar pull. Traction tests were performed on concrete tracks, where a torque meter installed on the rear axle of the tractor, dynamometer car, and electronic instrumentation for data acquisition were used. The MFWD on and off, four gears (5, 7, 8 and 9 km h(-1)) and eight loads on the drawbar (4, 8, 12, 16, 20, 24, 28, 30 kN) were evaluated. The results statistically analysed using regression equations, showed similar behavior for all gears, and also showed that, when the drawbar pull increased, there was a linear increase in the torque demand on the driving axles. When the traction is on, the torque is higher at the front axle with lowest loads, and the torque is higher at the rear axle with highest loads.
Descrição
Palavras-chave
performance, drive axle, tractive force
Como citar
Revista Brasileira De Engenharia Agricola E Ambiental. Campina Grande Pb: Univ Federal Campina Grande, v. 19, n. 9, p. 903-909, 2015.