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      Fuel consumption of a tractor in function of wear, of ballasting and tire inflation pressure Translated title: Consumo de combustível de um trator em função do desgaste, da lastragem e pressão de inflação dos pneus

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          Abstract

          When using appropriate inflation pressures and load capacity (ballast), it may obtain a higher yield and prolongation of the life of the tire, besides it may minimize the problems of loss of traction, increased slippage and fuel consumption. This study aimed to evaluate the fuel consumption of a tractor operating with new and worn tires in three conditions of ballasting and three inflation pressures, when driving on compacted soil with vegetation cover. The experiment was conducted at the experimental unit from the Department of Animal Science, Federal University of Lavras, state of Minas Gerais, Brazil, in an agricultural soil compacted by cattle trampling and with vegetation cover. It was used a tractor 4x2 with front wheel assist, of a 65.62 kW engine power. The tires were of R1 type, diagonal (front: 12.4 to 24; and rear: 18.4 to 30), the average height of the clutches of the new tires were 0.3 and 0.35 m for front and rear tires, respectively, and for the worn tires were 0.018 and 0.0045 m, for the front and the rear tires, respectively. The results showed advantages for the tractor equipped with new tires.

          Translated abstract

          Ao se utilizar pressão de inflação e a capacidade de carga (lastro) adequadas, pode-se obter um rendimento maior e um prolongamento da vida útil do pneu; além disso, minimizam-se os problemas de perda de tração, aumento de patinhagem e consumo de combustível. O presente trabalho teve como objetivo avaliar o consumo de combustível de um trator agrícola operando com pneus novos e desgastados, em três condições de lastragem e três pressões de inflação, ao trafegar sobre solo compactado com cobertura vegetal. O experimento foi realizado na unidade experimental do Departamento de Zootecnia da Universidade Federal de Lavras, Lavras-MG, em um solo compactado pelo pisoteio de bovinos e com cobertura vegetal. Utilizou-se um trator 4x2 TDA, com potência de 65,62 kW no motor. Os pneus foram do tipo R1, diagonal (dianteiros: 12,4-24; traseiros: 18,4-30), sendo que a altura média das garras dos pneus novos foi de 0,3 e 0, 35 m para os pneus dianteiros e traseiros, respectivamente, e nos pneus desgastados, 0,018 e 0,0045 m para os pneus dianteiros e traseiros, simultaneamente. Os resultados evidenciaram vantagens para o trator quando equipado com pneus novos.

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          Most cited references16

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          Máquinas agrícolas: ensaios & certificação

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            Os cuidados com o trator

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              Effects of ballast and inflation pressure on tractor tire performance

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                eagri
                Engenharia Agrícola
                Eng. Agríc.
                Associação Brasileira de Engenharia Agrícola (Jaboticabal )
                1809-4430
                February 2012
                : 32
                : 1
                : 131-139
                Affiliations
                [1 ] Universidade Federal de Lavras Brazil
                Article
                S0100-69162012000100014
                10.1590/S0100-69162012000100014
                772300db-9584-467c-ba48-584908d9a215

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-6916&lng=en
                Categories
                AGRICULTURAL ENGINEERING

                Agricultural engineering
                agricultural machinery,tractor test,tractive force,máquinas agrícolas,ensaio de trator,força de tração

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