Design and Experiment of Spiral Discharge Anti-Blocking and Row-Sorting Device of Wheat No-Till Planter

Yunxiang Li, Caiyun Lu, Hongwen Li, Jin He, Qingjie Wang, Shenghai Huang, Zhen Gao, Panpan Yuan, Xuyang Wei and Huimin Zhan
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Yunxiang Li: College of Engineering, China Agricultural University, Beijing 100083, China
Caiyun Lu: College of Engineering, China Agricultural University, Beijing 100083, China
Hongwen Li: College of Engineering, China Agricultural University, Beijing 100083, China
Jin He: College of Engineering, China Agricultural University, Beijing 100083, China
Qingjie Wang: College of Engineering, China Agricultural University, Beijing 100083, China
Shenghai Huang: College of Engineering, China Agricultural University, Beijing 100083, China
Zhen Gao: College of Engineering, China Agricultural University, Beijing 100083, China
Panpan Yuan: College of Engineering, China Agricultural University, Beijing 100083, China
Xuyang Wei: College of Engineering, China Agricultural University, Beijing 100083, China
Huimin Zhan: Shaanxi Agricultural Machinery Appraisal and Extension Station, Xi’an 710068, China

Agriculture, 2022, vol. 12, issue 4, 1-18

Abstract: Aiming at the problems of the poor passing capacity of machines and low cleaning rate of seed strip during wheat no-tillage sowing in annual double cropping areas of North China, a spiral discharge anti-blocking and row-sorting device (SDARD) was designed and is reported in this paper. After the straw was cut and chopped by the high-velocity rotating no-till anti-blocking knife group (NAKG), the straw was thrown into the spiral discharging mechanism (SDM) behind the NAKG. The chopped straw was discharged to the non-sowing area to reach the effect of seed strip cleaning through the interaction between the SDM and the row-sorting of straw mechanism (RSM). Based on a theoretical analysis for determining the parameters of crucial components, the quadratic rotation orthogonal combination test method was adopted, and the operating velocity of machines (OVM), the rotary velocity of the spiral shaft (RVSS), and the height of the holding hopper from the ground (HHHG) were selected as the test factors. The straw cleaning rate (SCR) was taken as the test index. The discrete element simulation test was carried out, the regression model of the SCR was established, and parameters optimization and field test were carried out. The results show that the significant order of the three influencing factors on the SCR was HHHG > OVM > RVSS. The optimal combination of operating parameters was that OVM was 5 km/h, RVSS was 80 r/min, and HHHG was 10 mm. Under the optimal parameter combination, the average SCR was 84.49%, which was 15.5% higher than the no-till planter without the device, and the passing capacity of machines was great, which met the agronomic requirements of no-tillage sowing of wheat in annual double cropping areas. This study could provide a reference for the design of no-tillage machines.

Keywords: no-tillage sowing; sowing strip cleaning; spiral discharge straw; discrete element simulation; anti-blocking and row-sorting (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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