Design for Copying Grouser and Bionic Convex Hull Patterns on Track Surfaces of Crawler Combine Harvesters

Lulu Yuan, Zhong Tang (), Sifan Liu, Ting Wang and Zhao Ding
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Lulu Yuan: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Zhong Tang: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Sifan Liu: School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
Ting Wang: Jiangsu World Agriculture Machinery Co., Ltd. (WORLD A/M), Zhenjiang 212311, China
Zhao Ding: Key Laboratory of Crop Harvesting Equipment Technology of Zhejiang Province, Jinhua 321017, China

Agriculture, 2024, vol. 14, issue 7, 1-22

Abstract: In the rainy season, which often has uncertain rainfall, crawler combine harvesters have difficulty traversing wet and soft rice fields. A large amount of clay is often accumulated on the track surfaces, resulting in frequent slipping and sinking, which greatly affects the operational performance and harvesting efficiency of crawler combine harvesters. To address this issue, this paper proposes a high-traction track grouser based on the structure of an ostrich’s foot sole. First, a traction force mathematical model is constructed to analyze the interaction between a track grouser and wet and soft rice fields, and parameter optimization is conducted. Then, the bionic information of a dung beetle’s non-smooth body surface is extracted, and the surface of the track is designed with biomimetic convex hull patterns based on the geometric similarity principle and adhesive experiments. Finally, the analysis results indicate that the optimized track grouser significantly improved the traction of the track in wet and soft rice fields. For the track plate with a bionic desorption convex hull pattern, a convex hull diameter of 6 mm, convex hull spacing of 8.25 mm, and convex hull height of 3 mm led to good adhesion reduction and desorption effects in wet and soft soil.

Keywords: combine harvester; trafficability; track grouser structure; biomimetic convex hull (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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