IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v11y2021i10p1000-d655239.html
   My bibliography  Save this article

Study on Performance of Concentric Threshing Device with Multi-Threshing Gaps for Rice Combines

Author

Listed:
  • Yanbin Liu

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China)

  • Yaoming Li

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China)

  • Lipeng Chen

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China)

  • Tao Zhang

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China)

  • Zhenwei Liang

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China)

  • Mingsen Huang

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China)

  • Zhan Su

    (Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang 212013, China)

Abstract

S concentric threshing device can improve rice crop separation and transportation capabilities. As one of the main factors affecting the threshing performance of rice combine harvesters, the threshing gap can influence the grain unthreshed rate and the grain damage rate directly. However, the clearance between any threshing cylinder tooth and the concave grid is constant for the traditional threshing device, named the single threshing gap in this paper, resulting in a consistently high total loss rate (the sum of unthreshed and damaged grains). Therefore, multi-threshing gaps are proposed in this paper for the concentric threshing device to solve the above problem. To compare the threshing performance between the single threshing gap and the multi-threshing gaps, the movement process of rice mixture (grain, short straw, and long straw) was simulated using the discrete element method (DEM). The simulation results showed that the separation and transportation abilities of the multi-threshing gaps were not decreased, but the distribution of threshed output mixture was more even for the multi-threshing gaps. Furthermore, a field experiment was also carried out on a combine harvester to compare the total loss rate. The experiment results showed that the total loss rate of the concentric threshing device with multi-threshing gaps was reduced by 0.0593%, which was 5.77% less than the total loss rate of the concentric threshing device with a single threshing gap.

Suggested Citation

  • Yanbin Liu & Yaoming Li & Lipeng Chen & Tao Zhang & Zhenwei Liang & Mingsen Huang & Zhan Su, 2021. "Study on Performance of Concentric Threshing Device with Multi-Threshing Gaps for Rice Combines," Agriculture, MDPI, vol. 11(10), pages 1-15, October.
  • Handle: RePEc:gam:jagris:v:11:y:2021:i:10:p:1000-:d:655239
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/11/10/1000/pdf
    Download Restriction: no

    File URL: https://www.mdpi.com/2077-0472/11/10/1000/
    Download Restriction: no
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Jianfei Zhang & Guangqiao Cao & Yue Jin & Wenyu Tong & Ying Zhao & Zhiyu Song, 2022. "Parameter Optimization and Testing of a Self-Propelled Combine Cabbage Harvester," Agriculture, MDPI, vol. 12(10), pages 1-19, October.
    2. Tao Zhang & Yaoming Li & Lizhang Xu & Yanbin Liu & Kuizhou Ji & Sheng Jiang, 2022. "Experimental Study on Fluidization Behaviors of Wet Rice Threshed Materials with Hot Airflow," Agriculture, MDPI, vol. 12(5), pages 1-13, April.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:11:y:2021:i:10:p:1000-:d:655239. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.