Tehnički vjesnik, Vol. 28 No. 6, 2021.
Izvorni znanstveni članak
https://doi.org/10.17559/TV-20210312082955
Optimization of Millet Axial Flow Threshing and Separation Device Based on Discrete Element Method
Dongming Zhang
; College of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
Shujuan Yi*
; College of Engineering, Heilongjiang Bayi Agricultural University, Daqing 163319, Heilongjiang, China
Haiyan Li
; Heilongjiang Agricultural Radio and Television School, (Hailun branch campus), Hailun 152300, China
Jie Gu
; Huzhou Fengyuan Agricultural Equipment Manufacturing Co., Ltd, Huzhou 313000, Zhejiang, China
Fenfei Zhang
; Xingguang Agricultural Machinery Co., Ltd, Huzhou 313000, Zhejiang, China
Tao Feng
; Xingguang Agricultural Machinery Co., Ltd, Huzhou 313000, Zhejiang, China
Sažetak
The difficulties of threshing and separation of millet have not been solved yet which has restricted the development of the millet industry because of the special biological structure and lack of professional agricultural machinery. In order to improve the quality of millet harvest and meet the market demand for millet, in this paper, according to the branching structure of millet, the millet earhead model was established by Discrete Element Method. Using virtual models of millet and device, the simulation tests were carried out whose results have shown that the threshing effect of the rasp-bar threshing element is better than that of the teeth threshing element. Then the rotor structure was optimized into a combined type of the rasp-bar and the teeth. A three-factor five-level quadratic orthogonal rotation combination test was carried out whose results have shown that the combined rotor can meet the requirements of millet harvest.
Ključne riječi
discrete element method; millet; simulation; threshing and separation
Hrčak ID:
264045
URI
Datum izdavanja:
7.11.2021.
Posjeta: 712 *