Design, Development and Laboratory Evaluation of Grooved Roller Metering Device for Corn Planting

Document Type : Research Paper

Authors

1 Biosystem Engineering Department, School of Agriculture, Shiraz University, Shiraz, Iran

2 Department of Biosystem Engineering, Faculty of Agriculture, Shiraz University, Shiraz, Iran

Abstract

Precision planters provide accurate placement of single seeds at equal and uniform intervals within rows by metering devices. Air drum, inclined plate, belt, horizontal plate and roller meter device used for precision planter which the roller metering device was used mostly. Three levels of number of slots (4, 5 and 6) and three levels of slots mouth (, and ) were considered as the new metering device parameters. So, nine new metering devices were made by PTFE Teflon. The experiments were done by grease belt system with three different forward speeds (2.5, 3.5 and 4.5 km.h-1) and four Rotational speed ratios (0.5, 0.67, 0.75 and 1) in three replications as a completely randomized factorial design. Multiple index, quality of feed index, miss index and precision index were considered for laboratory evaluation of the metering device. Based on the results, the optimum design values for single-seed metering device were 5 slots with 24.5 degrees in the slots mouth in 3.5 km.h-1 forward speed and 0.67 rotational speed ratio (52 rpm rotational speed).

Keywords

References

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Iranian Journal of Biosystems Engineering
Volume 51, Issue 2
July 2020
Pages 305-317

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History

  • Receive Date: 24 November 2019
  • Revise Date: 06 February 2020
  • Accept Date: 04 March 2020

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