Affiliation:
1. College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2. Department of Educational Administration, Taiyuan University of Science and Technology, Taiyuan 030024, China
3. School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China
Abstract
To improve the sowing performance of the spoon wheel maize seeding machinery, in this paper, two varieties of maize seed are selected as examples. The maize spoon precision seed metering device, a core component of the spoon wheel seeding machinery, is used as the research object. The maize seed assembly model is first established based on the maize seed assembly modeling method. Its validity is verified by the sowing experiment and corresponding DEM simulation under the different revolving speeds of the seed metering wheel. Secondly, the performance of the spoon precision seed metering device is optimized by integrating the maize seed assembly model and multivariate nonlinear regression method. Therefore, the number of sub-spheres of the horse tooth, spherical cone, and spheroid maize seed model are 10–14, 18, and 6, respectively. The results show that the performance of the seed metering device improved when the revolving speed of the seed metering wheel, handing angle, and seed spoon radius are 25 r/min, 40°, and 7 mm, respectively. There is good agreement between the expected results and experimental ones with relative errors of less than 5%, and the optimized seed metering device facilitates the process of seed guiding and seed delivery during the sowing process.
Funder
National Natural Science Foundation of China
Fundamental Research Program of Shanxi Province
Talent Research Start-up Funding Project of Taiyuan University of Science and Technology
Shanxi Provincial Higher Education Science and Technology Innovation Project
Open Project of the State Key Laboratory of Engine and Powertrain System
Graduate Innovation Fund of Jilin University
Subject
Process Chemistry and Technology,Chemical Engineering (miscellaneous),Bioengineering
Cited by
1 articles.
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