Journal of Taiwan Agricultural Research

Author:Guo-Shiang Hwang, Fu-Ming Lu*, Jhy-Rong Tsay, Lien-Sheng Liang and Fu-Hsiang Chang

Abstract:

    The objective of this study was to study the performance of a strain type grain flow sensor mounted on an oriental rice combine. The grain flow sensor and its related parts of the Ag Leader PF-3000 yield monitor were evaluated in this study. A genuine trashing operation tank of Japanese YANMAR GC85 rice combine was adopted to build a testing stand. An inclined screw conveyor was utilized to receive paddy from a horizontal screw conveyor. The impact plate mounted in the tangential direction of the grain flow path at (200, 30, 0) position based on a defined xyz coordinate showed that when the screw conveyor speed is reduced by 5%, the monitoring index is reduced by 17%. The vibration of the test stand increased the monitoring index and decreased the stability. The monitoring index either increased or decreased when the combine harvesting rate was either higher or lower than the corresponding grain flow rate set by original flow rate calibration constant.

Key words:Rice combine, Grain flow sensor, Yield monitor

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