Abstract
The existing moving box mechanism pot seedling transplanting machine on the market moves too fast when the picked seedling is collected, which negatively impacts the seedling picking performance. In order to improve the performance, two types of variable speed continuous moving box schemes were designed in this study. The first scheme was to apply a spiral-gear moving box spiral shaft with sine curve characteristics in the box moving mechanism, whereas the second one was to change the circular gear in the moving box into an elliptical gear with a speed shifting transmission mechanism. The working mechanism of the mechanical structure was analyzed, and the kinematic model was established. A dynamic analysis of the slider mechanism was performed. A virtual prototype was established according to agronomic parameters, and the virtual prototype experiments were conducted in ADAMS. The physical prototype and the high-speed photography experiment were performed on the test bench of a transplanting machine frame. The theoretical analysis, virtual prototype and physical prototype test results were consistent, which verified the validity of the theoretical model, virtual prototype and physical prototype and ensured the feasibility of the system. Keywords: transplanting machine, rice transplanter, pot seedling, moving box mechanism, variable speed moving box, spiral shaft, elliptic gear DOI: 10.25165/j.ijabe.20181102.2867 Citation: Zhou M L, Hua Z Y, Wang J Y, Wang L, Zhao Y, Yin D Q. New type of transverse moving box mechanism for pot seedling transplanting machine. Int J Agric & Biol Eng, 2018; 11(2): 70–75.
Highlights
Pot seedling transplanting has been widely popularized due to its largely increased yield per unit area
Whether the box moving mechanism can achieve accurate and quantitative feeding of the seedlings is one of the key factors that affects the precision of seedling picking of the transplanting machine and is an important part of studies on transplanting equipment[1,2]
Automatic seedling transplanting machines are primarily classified into the crank rocker type and rotary type, and the seedling picking approaches are divided into the seedling picking type and soil picking type[3,4,5]
Summary
Pot seedling transplanting has been widely popularized due to its largely increased yield per unit area. It is necessary to take a compromise approach based on the continuous moving box by lowering the speed of the box’s movements during the seedling picking process to ensure that the moving distance is less than 1/6 of the pot width. This approach will not make the seedling box inertia force too large and will ensure the reliability of seedling picking[7,8,9]. The above two schemes were patented [the pot seedling transplanting variable velocity moving box mechanism (201310010615.8) and the double helix shaft of the variable speed transverse transfer box of a seedling transplanting machine (201310010614.3)][10,11]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Agricultural and Biological Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
