New type of transverse moving box mechanism for pot seedling transplanting machine

Maile Zhou, Zhengyu Hua, Jingyuan Wang, Lei Wang, Yun Zhao, Daqing Yin

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.

Keywords


transplanting machine, rice transplanter, pot seedling, moving box mechanism, variable speed moving box, spiral shaft, elliptic gear

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References


Yang W Z, Zhao Y, Li G, Yu G H. Optimization design of a high speed rice transplanter box rotary spiral shaft orbit shift machine. Transactions of the CSAM, 2003; 34(6): 167–168.

Thomas E V. Development of a mechanism for transplanting rice seedlings. Mechanism and Machine Theory, 2002; 37(4): 395–410.

Zhao Y, Zhou M L, Zhao X, Sun J S. Rotary type rice pot seedling transplanting mechanism: China Patent, No. ZL201310317551.6, 2015.12.16.

Zhou M L, Sun L, Du X, Xin L. Optimal design and experiment of rice pot seedling transplanting mechanism with planetary bezier gears. Transactions of the ASABE, 2014; 57(6): 1537–1548.

Yu X X, Zhao Y, Chen B C, Zhou M L, Zhang H, Zhang Z C. Development status and prospect of transplanting machinery. Transactions of the CSAM, 2014; 45(8): 44–53.

Yang W Z, Yang Y D, Zhang Y, Zhao Y. Four axis high-speed rice transplanter moving box mechanism design principle. Chinese Agricultural Mechanization, 2005; 5: 67–69.

Nagasaka Y, Umeda N, Kanetai Y, Taniwaki K, Sasaki Y. Autonomous guidance for rice transplanting using global positioning and gyroscopes. Computers and Electronics in Agriculture, 2014; 43(3): 223–234.

Kumar G V P, Raheman H. Development of a walk-behind type hand tractor powered vegetable transplanter for paper pot seedlings. Biosystems Engineering, 2011; 110(2): 189–197.

Kumar G V P, Raheman H. Automatic feeding mechanism of a vegetable transplanter. Int J Agric & Biol Eng, 2012; 5(2): 20–27.

Zhao Y, Xin L, Na M J, Liu X L. Seedling transplanting non constant velocity continuous moving box mechanism. China Patent, No. 201310010615.8, 2013-04-10.

Zhao Y, Xin L, Wang L J. Variable speed transverse shifting box double helix shaft of pot seedling transplanting machine. China Patent, No. 201310010614.3, 2013-04-10

Bair B-W. Computer aided design of elliptical gears. Journal of Mechanical Design, 2002; 24(4): 787–793.

Bair B-W. Computer aided design of elliptical gears with circular-arc teeth. Mechanism and Machine Theory, 2004; 39(2): 153–168.

Zhou M L. Mechanism analysis and optimization design of the transplanting mechanism of high speed rice seedling transplanting mechanism with Bessel gear. Zhejiang: Zhejiang Sci-Tech University, 2014.

Li B F. Agricultural Mechanics. Beijing: China Agriculture Press, 2003.

Zhao Y. Outline of modern design methods of agricultural machinery. Journal of Northeast Agricultural University, 2012; 43(2): 1–5.

Jalón J G D, Serna M A, Avilés R. Computer method for kinematic analysis of lower-pair mechanisms. Mechanism and Machine Theory, 1981; 16(5): 94–114

van de Werken J. The development of the finger-tray automatic transplanting system. Journal of Agricultural Engineering Research, 1991; 50: 51–60

Zhao Y. Analysis and synthesis of agricultural machinery. Beijing: Mechanical Industry Press, 2008.




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