시험용 수집형 두류 수확기의 팥 수확성능
Harvesting Performance of the Experimental Pick-up Type Pulse Crop Harvester for Red Bean
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참고문헌
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초록
본 연구는 수집형 자주식 두류 콤바인 개발을 위하여 시험용 수확기를 설계·제작하여 예취·건조된팥을 대상으로 수확작업 성능을 분석하였다. 수확시험은 수확기의 엔진 회전속도 2000, 2400,2800rpm, 작업속도 0.6, 1.0, 1.4m/s의 설정에 따라 수집 손실비율, 배진 손실비율 등 수확손실과 수확된 곡물 품질로서 완전립 비율, 손상립 비율, 미탈곡립 비율, 이물질 비율을 분석하였으며, 작물 재배폭과 작업속도를 고려한 이론작업능률을 계산·추정하였다. 시험기는 운전조건이 엔진 회전속도2400rpm, 작업속도 1.0m/s일 때 가장 좋은 작업 성능을 보인 것으로 판단되며, 이 때 수집 손실비율약 3.9%, 배진 손실비율 약 0.5%, 총 손실비율 약 4.4%, 완전립 비율 약 97.0%, 손상립 비율 약1.8%, 미탈곡립 비율 약 0.0%, 이물질 비율 약 0.4%의 성능을 보여 국외 보통형 콤바인 보다 곡물 손실이 적고, 수확 곡물의 품질도 높아 우수한 작업 성능을 보인 것으로 나타났다. 또한 시험기는 팥의수확시험 조건이 불량한 상태에서도 재배 폭이 약 2m인 3조 예취·건조 팥을 약 1.0m/s의 작업속도로수집·탈곡할 수 있어서 이론 작업능률은 약 70a/h 정도일 것으로 판단되었다.
Abstract
To evaluate performance of the experimental pick-up type pulse crop harvester for harvestingred bean, its pick-up and discharging grain loss ratios, grain quality such as whole grain ratio,damaged grain ratio, unthreshed grain, and foreign material ratio in grain tank, and theoreticalfield capacity of the harvester were analyzed according to engine speeds of 2000, 2400 and2800 rpm and harvesting speeds of 0.6, 1.0 and 1.4 m/s. It is considered that the harvestershowed optimum performance at the engine speed of 2400 rpm and the harvesting speed of 1.0m/s, and then average pick-up grain loss ratio of 3.9%, discharging grain loss ratio of 0.5%,total grain loss 4.4%, whole grain ratio of 97.0%, damaged grain ratio of 1.8%, unthreshedgrain ratio of 0.0%, and foreign material ratio of 0.4% were shown. It is considered that theharvester has lower grain loss and higher grain quality than those of the imported beancombines. And also as it could harvest 3 rows of cut and dried red bean crop width of whichwas about 2 m, its theoretical field capacity was estimated for about 70 a/h.
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