| Design and test of self\|propelled Lycium barbarum vibrating harvester |
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| DOI：10.7606/j.issn.1000-7601.2021.05.30 |
| Key Words: Lycium barbarum harvester self\|propelled vibration picking parameter optimization field experiment |
| Author Name | Affiliation | | WAN Fangxin | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | SUN Haobo | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | DU Xiaolong | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | LI Shengyuan | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHAO Yongbiao | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | HUANG Xiaopeng | College of Mechanical and Electrical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| By establishing a vibration mechanical model of the fruit tree system, the mechanical conditions for the mechanical picking of Lycium barbarum to meet the requirements of “picking ripe and staying green” were obtained. Through field experiments, this project specifically studied effects of the amplitude, frequency, and number of vibrating rods on the harvest rate, damage rate, and wrong green harvest rate of mature Lycium barbarum fruits. Using the optimal value prediction function of the Design\|Expert 8.0.6 software to optimize the harvesting related parameters, the best combination of parameters was 140 r·min-1 for rotation speed of eccentric disc, 70 mm for amplitude, and 10 for number of vibrating rods. Under these conditions and based on experimental results, the minimum value of mature Lycium barbarum was 86.26%, the maximum value was 96.21%, and the average value was 91.23%. The minimum value of green fruit error recovery rate was 0.48%, the maximum value was 5.80%, and the average value was 3.14%. The minimum damage rate of mature Lycium barbarum was 0.84%, the maximum value was 2.87%, and the average value was 1.85%. The comprehensive recovery effect of the test index was the best and met the design requirements. |
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