Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics
<p><span style="font-family: Times New Roman;">Rice panicles which have reached a mature state must be harvested, requiring differently specialized threshing devices and operating parameters to achieve favorable threshing and separating results. The primary objective of this st...
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria
2015-12-01
|
Series: | Spanish Journal of Agricultural Research |
Subjects: | |
Online Access: | http://revistas.inia.es/index.php/sjar/article/view/7402 |
id |
doaj-7b522b8318de499087733483d59401df |
---|---|
record_format |
Article |
spelling |
doaj-7b522b8318de499087733483d59401df2020-11-25T00:32:52ZengInstituto Nacional de Investigación y Tecnología Agraria y AlimentariaSpanish Journal of Agricultural Research1695-971X2171-92922015-12-01134e0216e021610.5424/sjar/2015134-74022255Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristicsZhong Tang0Yaoming Li1Zhan Zhao2Tao Sun3Jiangsu University, Ministry of Education & Jiangsu Province, Key Laboratory of Modern Agricultural Equipment and Technology. Zhenjiang 212013Jiangsu University, Ministry of Education & Jiangsu Province, Key Laboratory of Modern Agricultural Equipment and Technology. Zhenjiang 212013Jiangsu University, Ministry of Education & Jiangsu Province, Key Laboratory of Modern Agricultural Equipment and Technology. Zhenjiang 212013Jiangsu University, Ministry of Education & Jiangsu Province, Key Laboratory of Modern Agricultural Equipment and Technology. Zhenjiang 212013<p><span style="font-family: Times New Roman;">Rice panicles which have reached a mature state must be harvested, requiring differently specialized threshing devices and operating parameters to achieve favorable threshing and separating results. The primary objective of this study is to design a transverse multi-cylinders device that operates under the most effective possible variables to harvest rice in different states of maturity. The attachment forces between the grain and pedicel on the panicle were measured at different moisture contents. Based on rice agronomic characteristics, a transverse multi-cylinders device test bench was developed to conduct threshing and separating experiments. The threshing and separating capability of each transverse cylinder was tested, and the operating parameters of each threshing cylinder were investigated. Results showed that detachment force decreased from the bottom to the top of the rice panicle. Optimal harvesting time was identified at moisture content of 29.69%, and the best operating parameters combination was cylinder speed of 600, 650 and 700 rpm, and concave clearances of 40, 35 and 40 mm. Combine harvester of transverse multi-cylinder device test results showed an un-threshed grain ratio of 0.64%, un-separated grain ratio of 0.35%, and broken grain ratio of 0.22%, at a feeding rate of 6 kg/s. This research can be used in the future to successfully design transverse multi-cylinders device for small and medium-sized rice combine harvesters.</span></p>http://revistas.inia.es/index.php/sjar/article/view/7402detachment forcethreshing and separationagronomic characteristicsrice paniclemulti-cylinders |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Zhong Tang Yaoming Li Zhan Zhao Tao Sun |
spellingShingle |
Zhong Tang Yaoming Li Zhan Zhao Tao Sun Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics Spanish Journal of Agricultural Research detachment force threshing and separation agronomic characteristics rice panicle multi-cylinders |
author_facet |
Zhong Tang Yaoming Li Zhan Zhao Tao Sun |
author_sort |
Zhong Tang |
title |
Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics |
title_short |
Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics |
title_full |
Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics |
title_fullStr |
Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics |
title_full_unstemmed |
Structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics |
title_sort |
structural and parameter design of transverse multi-cylinders device on rice agronomic characteristics |
publisher |
Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria |
series |
Spanish Journal of Agricultural Research |
issn |
1695-971X 2171-9292 |
publishDate |
2015-12-01 |
description |
<p><span style="font-family: Times New Roman;">Rice panicles which have reached a mature state must be harvested, requiring differently specialized threshing devices and operating parameters to achieve favorable threshing and separating results. The primary objective of this study is to design a transverse multi-cylinders device that operates under the most effective possible variables to harvest rice in different states of maturity. The attachment forces between the grain and pedicel on the panicle were measured at different moisture contents. Based on rice agronomic characteristics, a transverse multi-cylinders device test bench was developed to conduct threshing and separating experiments. The threshing and separating capability of each transverse cylinder was tested, and the operating parameters of each threshing cylinder were investigated. Results showed that detachment force decreased from the bottom to the top of the rice panicle. Optimal harvesting time was identified at moisture content of 29.69%, and the best operating parameters combination was cylinder speed of 600, 650 and 700 rpm, and concave clearances of 40, 35 and 40 mm. Combine harvester of transverse multi-cylinder device test results showed an un-threshed grain ratio of 0.64%, un-separated grain ratio of 0.35%, and broken grain ratio of 0.22%, at a feeding rate of 6 kg/s. This research can be used in the future to successfully design transverse multi-cylinders device for small and medium-sized rice combine harvesters.</span></p> |
topic |
detachment force threshing and separation agronomic characteristics rice panicle multi-cylinders |
url |
http://revistas.inia.es/index.php/sjar/article/view/7402 |
work_keys_str_mv |
AT zhongtang structuralandparameterdesignoftransversemulticylindersdeviceonriceagronomiccharacteristics AT yaomingli structuralandparameterdesignoftransversemulticylindersdeviceonriceagronomiccharacteristics AT zhanzhao structuralandparameterdesignoftransversemulticylindersdeviceonriceagronomiccharacteristics AT taosun structuralandparameterdesignoftransversemulticylindersdeviceonriceagronomiccharacteristics |
_version_ |
1725318642354094080 |