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Measuring of pulling resistance in machinery with passive working organs

Author

Listed:
  • J. Musil

    (Faculty of Agronomy, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic)

  • J. Červinka

    (Faculty of Agronomy, Mendel University of Agriculture and Forestry in Brno, Brno, Czech Republic)

Abstract

A determination of the total pulling resistance of machinery is important in light of its dimensioning as well in light of energy requirements of processed operation. There are several methods to determine it. They can be divided to analytical methods (Goryachkin) and to methods of measurement in field-laboratory conditions using different kinds of force sensors. The most frequently used type is a sensor on the base of tensiometer, which was used during our work. Measured pulling resistance at three working speeds and at ranges of used depths of soil processing 82-122 mm was 9.6-17.4 kN with variation coefficient up to 10%. This measure has proved a dependence of the total pulling resistance on used depth of soil processing however dependence on speed of operation was practically insignificant. Machinery work quality was evaluated by determination of weight of plants matter on the field surface and by quantification of its percentage in total plant matter on the same area. The measured percentage range of plant matter on the field surface was 67.2-4.6% at working speed 8-14 km/h.

Suggested Citation

  • J. Musil & J. Červinka, 2007. "Measuring of pulling resistance in machinery with passive working organs," Research in Agricultural Engineering, Czech Academy of Agricultural Sciences, vol. 53(2), pages 47-53.
    • Handle: RePEc:caa:jnlrae:v:53:y:2007:i:2:id:2121-rae
    DOI: 10.17221/2121-RAE
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