| Design and test of Jerusalem artichoke harvester characterized by large dredging depth |
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| DOI：10.7606/j.issn.1000-7601.2019.05.38 |
| Key Words: Jerusalem artichoke harvester with large dredging depth design digging resistance field experiment |
| Author Name | Affiliation | | AI Li-xun | College of Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | HUANG Xiao-peng | College of Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WEI Hong-an | College of Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | YANG Yong | Tuofengshan Ecological Farm,Yuzhong, Gansu 730100, China | | LI Rong | Tuofengshan Ecological Farm,Yuzhong, Gansu 730100, China |
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| Abstract: |
| According to harvesting need of Jerusalem artichoke, a harvester of Jerusalem artichoke with large dredging depth was developed. The harvester consisted of extraversion integral strip-type digger blade, two-grade jitter-chain-transport separator,and rack and land wheels. The harvester can simultaneously complete digging of Jerusalem artichoke, removing soil, transporting and laying of Jerusalem artichoke. The field test showed that the harvester could realize sustainable and stable operation and dig 250~500 mm deep to overcome soil jam caused by blocking of frozen soil and/or gravels during the first frost in the field and developed dense roots of Jerusalem artichoke. It had good harvesting quality and good separating effect of Jerusalem artichoke from soil. The loss rate, damage rate, and the impurity rate of Jerusalem artichoke were less than 1.75%, 4.8%, and 4.5%, respectively, which meet the need of Jerusalem artichoke harvesting. |
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