| 摘要: |
| 针对国内马铃薯联合收获机纵向尺寸较大、田间作业掉头不灵活、通过性及稳定性较差的问题,对4U-1400马铃薯联合收获机分离输送装置进行参数分析。主要对该分离输送装置进行理论分析与仿真,并通过田间试验进行验证。田间试验过程发现,当二级土薯分离输送装置刮板高度≥60 mm,输送速度为0.8~1.0 m/s,倾斜角度≤36°时,薯块输送较平稳,不易伤薯且土薯分离效果较好。该分离输送装置集土薯分离功能和大倾角薯块输送功能于一体,整机结构紧凑。该收获机薯块装袋作业适应于土质疏松、无板结的旱地(覆膜)种植马铃薯的收获;当土壤湿度较大、结块严重时,亦可将薯块集中堆放(液压操纵)或条铺于地面。 |
| 关键词: 马铃薯 分离 输送 仿真 |
| DOI：10.11841/j.issn.1007-4333.2015.06.35 |
| 投稿时间：2014-12-24 |
| 基金项目:"十二五"国家科技支撑计划项目(2012BAD06B03) |
|
| Parameter analysis and experiment for separation conveyer of 4U-1400 type potato harvester |
|
LU Xiang-hui1, WANG Xin2, ZHANG Wen-jie1, SHI Ming-ming3, WEI Hong-an1
|
| (1.College of Engineering, Gansu Agricultural University, Lanzhou 730070, China;2.Lanzhou garden school, Lanzhou 730060, China;3.College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310000, China) |
| Abstract: |
| In view of the problems existing in the present domestic potato combine harvester such as the longitudinal size too large,harvester turn not flexible with field operation,the poor performance of passing and stability,Parameter analysis of separating and conveying device of 4U-1400 potato combine harvester was performed.Our study was mainly focused on the theoretical analysis and simulation of the secondary soil potato separation conveyor components and the validation of the simulation results through field harvest tests.The results show that when the height of scraper device is 60 mm or more than 60 mm,conveyor speed is 0.8-1.0 m/s,and the angle of inclination is 36° or less than 36°,the potato can be conveyed stably,at the same time,the conveyor has a low potato injury rate and a better soil separation.The separating-conveying device put the soil potato separation function and large angle tuber conveying function in one set,which make the machine more compact structure.The harvester is suitable for loose soil without harden dry land (tectorial membrane) .In addition,when the land has a high soil moisture or is severely hardened,the harvester still can collect potato to one spot (hydraulic control) or a line. |
| Key words: potato separation convey simulation |
