Capacidade Do Sistema De Levante Hidráulico Dos Tratores Agrícolas De Pneus No Brasil

Veit, André Augusto; Alonço, Airton dos Santos; Francetto, Tiago Rodrigo; Becker, Rafael Sobroza; Bellé, Mateus Potrich

doi:10.17058/tecnolog.v20i1.6472

Cited by 2 publications

(2 citation statements)

References 4 publications

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“…Although the largest collections of normative texts and test data address the topic of agricultural tractors (Mialhe, 1996), there is still a lack of information on performance and data related to the torque and power demand of agricultural machines and implements. According to Veit et al (2016), the joint evaluation of a tractor is complex and time-consuming. Garay et al (2013) affirmed that the main interest of consumers is related to the acquisition of machines properly adjusted to their reality, so that they are fully aware of technical specifications.…”

Section: Introductionmentioning

confidence: 99%

Torque and power demand of agricultural equipment activated by power take-off

et al. 2021

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The agricultural tractor is the main mobile energy source in rural companies, with power take-off being one of the most important uses of the energy produced by the engine. This study evaluates the torque and power demand required to activate active parts of agricultural equipment through tractor power take-off in different working conditions. For this, a boom sprayer, an atomizer, a rotary hoe, and a rotary ditcher were used. The experimental design for the sprayers was completely randomized, with working pressures of 150, 240, and 310 kPa for the boom sprayer and flow rates of 11.5, 13.0, and 22.0 L min h -1 for the atomizer. The randomized block experimental design, in a bi-factorial design (3 x 2), was used for the rotary hoe and rotary ditcher, with three speeds (2.10; 2.60 and 3.10 km h -1 ) and two soil conditions for the rotary hoe (one harrowing and two harrowings) and two working depths for the rotary ditcher (0.10 m and 0.20 m). Torque and power values were obtained using a torque indicator installed between the power take-off and the universal joint shaft, which links the tractor to the equipment. From the data obtained, it was concluded that the boom sprayer demanded the highest torque and power at the highest working pressure. The rotary ditcher increased torque and power demand as speed and working depth increased.

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Section: Introductionmentioning

confidence: 99%

Torque and power demand of agricultural equipment activated by power take-off

et al. 2021

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“…In agricultural tractors, this system is also known as remote control valves (RCV). The operation principle of this energy transfer equipment is based on transmitting the force through the pressurized oil flow [ 15 ], which activates the equipment, without interfering with the rotation of the engine.…”

Section: Introductionmentioning

confidence: 99%

Development of an electrohydraulic drive system for the vibrating conveyor belt of the peanut digger-inverter

et al. 2018

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Hydraulic systems are equipment widely used in stationary industrial equipment and in moving agricultural equipment and construction machines. Currently, the rotation of the vibrating conveyor belt of the peanut digger-inverter is triggered by the tractor power take-off. Considering that for the equipment to operate at its optimal, the tractor engine needs to work at low rotation, responsible for the rotation of the power take-off, this work aimed at developing an electro-hydraulic system able to transmit varying work rotations to the vibrating conveyor belt of the digger-inverter, regardless the rotation of the power take-off and the speed used in the tractor. The electro-hydraulic system uses the oil of the auxiliary hydraulic system (remote control) and electric power of the tractor battery. The rotation of the hydraulic motor that drives the vibrating conveyor axis is controlled by a proportional flow control valve while the direction of rotation is determined by an electro-hydraulic directional valve, controlled by a Vcontrol Personal Device Assistant controller installed in the tractor cab. The electro-hydraulic system developed can be used to control the rotation of the vibrating conveyor belt of the peanut digger-inverter since it meets the torque and power requirements necessary to move the vibrating conveyor belt, with the respective rotation control.

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Capacidade Do Sistema De Levante Hidráulico Dos Tratores Agrícolas De Pneus No Brasil

Cited by 2 publications

References 4 publications

Torque and power demand of agricultural equipment activated by power take-off

Torque and power demand of agricultural equipment activated by power take-off

Development of an electrohydraulic drive system for the vibrating conveyor belt of the peanut digger-inverter

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