Design and experiment of pneumatic seed clearing mechanism for pin-hole tube wheat plot precision sowing device

Xirui Zhang, Youming Yang, Qingjie Wang, Hongwen Li, Zhifu Zhang, Junxiao Liu

Abstract


For the problem that when wheat is sucked up by the air suction method, the seeds are gathered in a small area, making it difficult for the contact seed cleaning mechanism to clean the seeds. The mechanism of seed cleaning airflow on wheat seed was studied, the flow velocity distribution relationship of the jet section was defined, the mathematical model of the jet velocity of circular and plane sections was established, and the key factors that could have a significant influence on seed cleaning effect were explored. A non-contact positive pressure air flow seed cleaning method was proposed. After theoretical calculations, it is concluded that the core section lengths of the circular section jet and the inline jet are 24.8 mm and 28.8 mm, respectively. The clearing distance is set to 20 mm. Through the single-factor test, the best air tube nozzle shape was clarified as a vertical inline nozzle. The angle of seed cleaning, the air velocity of seed cleaning, and the negative supply pressure were selected as influencing factors, and the seed leakage index, seed reabsorption index, and seed qualification index as the evaluation indicators to conduct a 3-factor 5-horizontal rotation test. A mathematical regression model of influencing factors and evaluation indexes was established to analyze the influence of these factors and indexes. The optimal operation parameters were obtained as the seed cleaning Angle of 19°, the seed cleaning air velocity of 58 m/s, and the negative pressure of 8.5 kPa. Under the optimal parameters, the seed leakage suction index is 8.23%, the seed reabsorption index is 0.33%, and the seed qualification index is 91.44%, which meets the design requirements.
Keywords: wheat, precision seed-metering device, clearing, seed, positive pressure airflow, jet flow field
DOI: 10.25165/j.ijabe.20231604.8006

Citation: Zhang X R, Yang Y M, Wang Q J, Li H W, Zhang Z F, Liu J X. Design and experiment of pneumatic seed clearing mechanism for pin-hole tube wheat plot precision sowing device. Int J Agric & Biol Eng, 2023; 16(4): 85-95

Keywords


wheat, precision seed-metering device, clearing, seed, positive pressure airflow, jet flow field

Full Text:

PDF

References


Dong Y X, Physiological mechanism and cultivation techniques of high yield and efficiency winter-seeded spring wheat in Inner Mongolia, Doctoral thesis. Inner Mongolia, China: Inner Mongolia Agricultural University, 2020; 143p. (in Chinese)

Xu Q M, Li H W, He J, Wang Q J, Lu C Y, Wang C L. Design and experiment of the self-propelled agricultural mobile platform for wheat seeding. Transactions of the CSAE, 2021; 37(14): 1-11. (in Chinese)

Cheng X P, Li H W, Lu C Y, He J, Wang Q J, Wang C, et al. Parameter optimization and experiment of centrifugal seed dispenser in wheat plot drill. Transactions of the CSAE, 2019; 35(20): 1-9. (in Chinese)

Cheng X P, Li H W, Wang Q J, He J, Lu C Y, Yang W. Design and experiment of wheat seeding control system in plot seeder. Transactions of the CSAM, 2019; 50(7): 30-38. (in Chinese)

El-Kholy M M, Kamel R M. Development and evaluation of an innovative grain cart with a pneumatic conveyor. Heliyon, 2021; 7(11): e08461. doi: 10.1016/j.heliyon.2021.e08461.

Feng J M, Qian D Y, Feng Y H, Tao L H, Zhuo J Y, Qing F X. Optimal structure design and performance tests of seed metering device with fluted rollers for precision wheat seeding machine. IFAC Papers OnLine, 2018; 51(17): 509–514.

Wang Y B, Li H W, Hu H N, He J, Wang Q J, Lu C Y, et al. A noncontact self-suction wheat shooting device for sustainable agriculture: A preliminary research. Computers and Electronics in Agriculture. 2022; 197. 106927. doi: 10.1016/j.compag.2022.106927.

Xi X B, Gu C J, Shi Y J, Zhao Y, Zhang Y F, Zhang Q, et al. Design and experiment of no-tube seeder for wheat sowing. Soil and Tillage Research. 2020; 204: 104724. doi:10.1016/j.still.2020.104724.

Liu J X, Wang Q J, Li H W, He J, Lu C Y. Design and seed suction performance of pinhole-tube wheat precision seeding device. Transactions of the CSAE, 2019; 35(11): 10-18. (in Chinese)

Liu J X, Wang Q J, Li H W, He J, Lu C Y, Wang C. Numerical analysis and experiment on pneumatic loss characteristic of pinhole-tube wheat uniform seeding mechanism. Transactions of the CSAM, 2020; 51(6): 29-37. (in Chinese)

Lai Q H, Sun K, Yu Q X, Qin W. Design and experiment of a six-row air-blowing centralized precision seed-metering device for Panax notoginseng. Int J Agric & Biol Eng, 2020; 13(2): 111–122. doi: 10.25165/j.ijabe.20201302.5161.

Liu W, Hu J P, Yao M J, Zhao J, Lakhiar I A, Lu C T, et al. Magnetic field distribution simulation and performance experiment of a magnetic seed-metering device based on the combined magnetic system. Int J Agric & Biol Eng, 2021; 14(1): 108–117. doi: 10.25165/j.ijabe.20211401.5852.

Wang G P, Sun W, Chen L D, Zhang H, Liu X L, Li H L, et al. Realization of an integrated seeding and compensating potato planter based on one-way clutch. Int J Agric & Biol Eng, 2020; 13(3): 79–87. doi: 10.25165/j.ijabe.20201303.5450.

Wang Y B, Li H W, Hu H N, He J, Wang Q J, Lu C Y, et al. DEM-CFD coupling simulation and optimization of a self-suction wheat shooting device. Powder Technology. 2021; 393: 494-509.

Yang W. Research on technology and equipment of precision seeding in maize breeding. Doctoral thesis. Beijing, China: Chinese Academy of Agricultural Mechanization Sciences, 2019; 105p. (in Chinese)

Introduction of machines and tools of Wintersteiger Company in Austria, 2021. https://www.nongjitong.com/company/wintersteiger/. Accessed on [2021-08-03] (in Chinese)

Yang W, Fang X F, Li J D, Li L X. Design and experiment of air-suction precision seed meter with self-clearing seed chamber for corn plot test. Transactions of the CSAM, 2019; 50(6): 64-73. (in Chinese)

Zhang L Y. Design on wheat hill-drop planter based on PLC controlled used for experimental plot. MS dissertation, Tai’an,: Shandong Agricultural University, 2012; 64p. (in Chinese)

Zhang D D. Improving design and test on pneumatic hill-drop planter for wheat breeding plot. MS dissertation. Tai’an: Shandong Agricultural University, 2014; 58 p. (in Chinese)

Liu Y Q. Experimental study on air-suction drum-type vegetable seedling seeder. Beijing: Chinese Academy of Agricultural Mechanization Sciences, 2018; 69p. (in Chinese)

Liu Y Q, Zhao Z B, Liu L J, Zhao J H, Wang J Y. Research status and development trend of vegetable plug seedling seeder. Agricultural Engineering, 2018; 8(1): 6-12. (in Chinese)

Liu Y Q, Liu L J, Zhao Z B, Zhao J H, Cui W. Design and experiment on plant seedling device for vegetable seedling seeder. Transactions of the CSAM, 2018; 49(S1): 83-91. (in Chinese)

Zhang K. Study on mechanism and parameters of air suction cylinder type precise seeding device for maize with plant material bowl-tray. Doctoral thesis. Daqing, China: Heilongjiang Bayi Agricultural Reclamation University, 2018;124p. (in Chinese)

Zhang K, Yi S J. Simulation and experimental optimization on filling seeds performance of seed metering device with roller of air-suction. Transactions of the CSAM, 2017; 48(7): 78-86. (in Chinese)

Xu G J. Design and experiment of pneumatic cylinder array precision seed-metering device for cotton. Master dissertation. Shihezi: Shihezi University, 2018; 64p. (in Chinese)

Ni X D, Xu G J, Wang Q, Peng X R, Wang J, Hu B. Design and experiment of pneumatic cylinder array precision seed-metering device for cotton. Transactions of the CSAM, 2017; 48(12): 58-67. (in Chinese)

Wen Q, Sha J, Liu Y Z. TR-PIV Measurement of the turbulent submerged jet and pod analysis of the dynamic structure. Journal of Experiments in Fluid Mechanics, 2014; 28(4): 16-24. (in Chinese)

Cai Y T. Numerical simulation of air resistance of light materials. MS dissertation. Qinhuangdao; Yanshan University, 2021; 77p. (in Chinese)

Dun G Q, Mao N, Gao Z Y, Wu X P, Liu W H, Zhou C. Model construction of soybean average diameter and hole parameters of seed-metering wheel based on DEM. Int J Agric & Biol Eng, 2022; 15(1): 101–110. doi: 10.25165/j.ijabe.20221501.5914.

Han D D, Zhang D X, Jing H, Yang L, Cui T, Ding Y Q, et al. DEM-CFD coupling simulation and optimization of an inside-filling air-blowing maize precision seed-metering device. Computers and Electronics in Agriculture, 2018; 150: 426-438.

Liang Y Q, Tang Z, Zhang H, Li Y M, Ding Z, Su Z. Cross flow fan on multi-dimensional airflow field of air screen cleaning system for rice grain. Int J Agric & Biol Eng, 2022; 15(4): 223–235. doi: 10.25165/j.ijabe.20221504.6949.

Lei X L, Liao Y T, Liao Q G. Simulation of seed motion in seed feeding device with DEM-CFD coupling approach for rapeseed and wheat. Computers and Electronics in Agriculture, 2016; 131: 29-39.

Patel M, Thomas J, Joshi H C. Flow characterization of supersonic gas jets: Experiments and simulations. Vacuum, 2021; 192: 110440. doi: 10.1016/j.vacuum.2021.110440.

Gahlot N K, Singh N K. Effect of air jet with injection pressure on the performance of mixed compression air intake. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 2020; 235(9). doi:10.1177/0954410020966507.

Pimshtein V G. On the structure of the sound field near a turbulent jet emanating from a nozzle in the case where perturbations exist in its prechamber. Journal of Engineering Physics and Thermophysics, 2021; 94(3): 666-669.

He R Y, Wang J L, Xu G M, He X Y, Duan P F. Design and experiment of wheat precise seed metering apparatus with positive and negative pressure with function of limiting seed filling posture. Transactions of the CSAM, 2022; 53(9): 39-49,167. (in Chinese)

Zhao C Q, Jiang Y. Gas jet dynamics. Beijing: Beijing Institute of Technology Press, 1998. (in Chinese)

GB/T6973-2005 Inspection and Quarantine of the People's Republic of China (AQSIQ). Test method for single grain (precision) seeder, 2005. (in Chinese)

JB/T10293-2013. Enterprise Standard of Shenyang Tianhe Xingda Machinery Manufacturing Co., Ltd. Test method for single grain (precision) seeder, 2013. (in Chinese)




Copyright (c) 2023 International Journal of Agricultural and Biological Engineering

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

2023-2026 Copyright IJABE Editing and Publishing Office