农业工程学报2012，Vol.28Issue(3)：14-19,6.DOI:10.3969/j.issn.1002-6819.2012.03.003
切纵流联合收获机小麦脱粒分离性能评价与试验
Experiment and evaluating indicators of wheat threshing and separating on test-bed of longitudinal axial-threshing unit
摘要
Abstract
For the problems of the heavy grain losing and huge power consuming in crops threshing and separating by China-made tangential-axial combine harvester, the tangential-threshing drum, assisted-feeding drum and longitudinal-axial-threshing drum taking from the tangential-axial combine harvester were used to establish a tangential-longitudinal-axial threshing-separating test-bed in the laboratory. The evaluating indicators of threshing and separating power consuming, and entrainment losing rate and unthreshing losing rate were obtained by threshing and separating performance on the test-bed with the wheat feeding rate of 7.5 kg/s. The threshing and separating power consuming, and entrainment losing rate were converted into complex amplitude indexes to establish the feasible region of the best threshing and separating performance indexes. The experiments showed that the optimal results of wheat threshing and separating were as follows: the total grain losing was 0.56%, power consuming was 66.64 kW, the optimal threshing and separating performance indexes was 0.8935 with the conditions of that the wheat feeding rate of 7.5 kg/s, and the liner speed of the tangential-threshing drum was 21.66 m/s, the threshing components of the tangential-threshing drum was knife tooth, the clearance between the Inlet/Outlet was 30/20 mm, the liner speed of the longitudinal-axial-separating drum was 19.63 m/s, and the threshing components of longitudinal-axial-separating drum was spike tooth and the gap of the threshing was 20 mm.关键词
收获机/试验/指标/切流滚筒/纵轴流滚筒/脱粒分离Key words
combine/experiments/indicators/tangential-threshing drum/longitudinal-axial-threshing drum/threshing and separating分类
农业科技引用本文复制引用
唐忠,李耀明,徐立章,李洪昌,庞靖..切纵流联合收获机小麦脱粒分离性能评价与试验[J].农业工程学报,2012,28(3):14-19,6.基金项目
江苏省科技支撑计划资助项目(BE2011333)、江苏省研究生创新基金项目(CXZZ110549)、中国博士后科学基金(2011M501181)、江苏高校优势学科建设工程资助项目(苏财教(2011)8号). （BE2011333）
