Design of an active seed throwing and cleaning unit for pneumatic rice seed metering device

Authors

  • He Xing Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou
  • Zaiman Wang Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China; College of Engineering, South China Agricultural University, Guangzhou 510642, China
  • Xiwen Luo Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China; College of Engineering, South China Agricultural University, Guangzhou 510642, China
  • Ying Zang Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China; College of Engineering, South China Agricultural University, Guangzhou 510642, China
  • Wenwu Yang Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China; College of Engineering, South China Agricultural University, Guangzhou 510642, China
  • Minghua Zhang Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China; College of Engineering, South China Agricultural University, Guangzhou 510642, China
  • Yuexin Ma 1. Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou 510642, China; 2. College of Engineering, South China Agricultural University, Guangzhou 510642, China

Keywords:

agricultural machinery, seed metering device, seed cleaning, anti-clogging, pneumatic seed metering, precision seeder

Abstract

To address the clogging of the rice seed metering device after a long period of operation without affecting the precision of normal seeding, an active seed throwing and cleaning unit was designed based on the fact that magnets of the same pole were mutually exclusive. The working principle of the two devices was analysed theoretically, and a mechanical model was created according to the relationship between the repulsion forces of magnets and the spring forces of springs. The super hybrid rice Y-2 You 900 with 22.5% moisture content (wet basis) was used as the test object. The whole factor experiments were carried out under different negative pressures, rotational speeds of the suction plates, and lengths of probes. The results indicated that under any test conditions, the active seed throwing and cleaning unit worked normally. The results of high-speed photography showed that the rate of seed cleaning was 100%. The results also showed that the optimal negative pressure was 0.8 kPa. The probability of 1-3 seeds per hill for the seed metering device was approximately 95% under the optimal negative pressure. The optimal length of the probe was found to be 2 mm. The average qualified rate of hill space was 96.04% under the optimal length of probe, the longer the length of the probe, the lower the qualified rate of hill space. It also showed that an active seed throwing and cleaning unit could effectively avoid the hole clogging caused by the long-term operation and had no influence on the normal operation of the pneumatic rice seed metering device. The active seed throwing and cleaning unit improved the stability of the seed metering device, and the research provided a reference for the optimal design of seed throwing and cleaning structures of the pneumatic rice seed metering device. Keywords: agricultural machinery, seed metering device, seed cleaning, anti-clogging, pneumatic seed metering, precision seeder DOI: 10.25165/j.ijabe.20181102.3844 Citation: Xing H, Wang Z M, Luo X W, Zang Y, Yang W W, Zhang M H, et al. Design of an active seed throwing and cleaning unit for pneumatic rice seed metering device. Int J Agric & Biol Eng, 2018; 11(2): 62–69.

Author Biography

He Xing, Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou

Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education

References

[1] Farooq M, Siddique K H M, Rehman H, Aziz T, Lee D, Wahid A. Rice direct seeding: Experiences, challenges and opportunities. Soil & Tillage Research, 2011; 111: 87–98.
[2] Pandey S, Velasco L. Trends in crop establishment methods in Asia and research issues. In: Rice is Life: Scientific Perspectives for the 21st Century, Proceedings of the World Rice Research Conference, 4–7 November 2004, Tsukuba, Japan, pp.178–181.
[3] Chan C C, Nor M A M. Impacts and implications of direct seeding on irrigation requirement and systems management. In: Paper Presented at the Workshop on Water and Direct Seeding for Rice, 14–16 June 1993.Muda Agricultural Development Authority, Ampang Jajar, Alor Setar, Malaysia.
[4] Yang Z Y, Li N, Ma J, Sun Y J, Xu H. High-yielding traits of heavy panicle varieties under triangle planting geometry: A new plant spatial configuration for hybrid rice in China. Field Crops Research, 2014; 168: 135–147. (in Chinese).
[5] Xing H, Zang Y, Wang Z M, Luo X W, Zhang G Z, Cao X M, et al. Design and experiment of filling seed stratified room on rice pneumatic metering device. Transactions of the CSAE, 2015; 31(4): 42–48. (in Chinese).
[6] Yasir S H. Design and test of a pneumatic precision metering device for wheat. Wuhan: Huazhong Agricultural University, 2011. (in Chinese).
[7] Singh R C, Singh G, Saraswat D C. Optimization of design and operational parameters of a pneumatic seed metering device for planting cottonseeds. Biosystems Engineering, 2005; 92(4): 429–438.
[8] Karayel D. Performance of a modified precision vacuum seeder for no-till sowing of maize and soybean. Soil & Tillage Research, 2009; 104(2): 121–125.
[9] Karayel D, Barut Z B, Ozmerzi A. Mathematical Modelling of Vacuum Pressure on a Precision Seeder. Biosystems Engineering, 2004; 87(4): 437–444.
[10] Karayel D, Wiesehoff M, Zmerz A O, Muller J. Laboratory measurement of seed drill seed spacing and velocity of fall of seeds using high-speed camera system. Computers and Electronics in Agriculture, 2006; 50(2): 89–96.
[11] Ozmerzi A, Karayel D, Topakci M. Effect of Sowing Depth on Precision Seeder Uniformity. Biosystems Engineering, 2002; 82(2): 227–230.
[12] Yazgi A, Degirmencioglu A. Measurement of seed spacing uniformity performance of a precision metering unit as function of the number of holes on vacuum plate. Measurement, 2014; 56(6): 128–135.
[13] Yazgi A, Degirmencioglu A, Onal I, Bayram E. Mathematical modeling and optimization of the performance of a metering unit for precision corn seeding. Journal of Agricultural Machine Science, 2010; 6(2): 107–113.
[14] Zhang G Z, Zang Y, Luo X W, Wang Z M, Zhang Q, Zhang S S. Design and indoor simulated experiment of pneumatic rice seed metering device. Int J Agric & Biol Eng, 2015; 8(4): 10–18.
[15] Liao Y T, Wang L, Liao Q X. Design and test of an inside-filling pneumatic precision centralized seed-metering device for rapeseed. Int J Agric & Biol Eng, 2017; 10(2): 56–62.
[16] Liu H X, Wang F L, Yang G L. New vertical composite plate soybean precision seed-metering device. Transactions of the CSAE, 2007; 23(10): 112–116. (in Chinese).
[17] Xing H, Zang Y, Cao X M, Wang Z M, Luo X W, Zeng S, et al. Experiment and analysis of dropping trajectory on rice pneumatic metering device. Transactions of the CSAE, 2015; 31(12): 23-30. (in Chinese)
[18] Beer F P, Johnston E R. Mechanics of materials. Beijing: China Machine Press, 2015. (in Chinese).
[19] GB/T 6973-2005 single (precise) test method. National Standards of the People’s Republic of China. (in Chinese).
[20] Li Y Y, Hu C R. Experimental design and data processing. Beijing: Chemical Industry Press, 2008. (in Chinese)

Downloads

Published

2018-03-31

How to Cite

Xing, H., Wang, Z., Luo, X., Zang, Y., Yang, W., Zhang, M., & Ma, Y. (2018). Design of an active seed throwing and cleaning unit for pneumatic rice seed metering device. International Journal of Agricultural and Biological Engineering, 11(2), 62–69. Retrieved from https://ijabe.migration.pkpps03.publicknowledgeproject.org/index.php/ijabe/article/view/3844

Issue

Vol. 11 No. 2 (2018): IJABE

Section

Power and Machinery Systems

License

IJABE is an international peer reviewed open access journal, adopting Creative Commons Copyright Notices as follows.


Authors who publish with this journal agree to the following terms:


  1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.

  2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.

  3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).