Prediction and Experimental Study of Tire Slip Rate Based on Chassis Sinkage Amount

Yixin Shi, Jianfei Liu, Defan Huang, Minzi Xu, Shike Zhai, Wentao Zhang and Ping Jiang ()
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Yixin Shi: College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha 410128, China
Jianfei Liu: College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha 410128, China
Defan Huang: College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha 410128, China
Minzi Xu: College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha 410128, China
Shike Zhai: College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha 410128, China
Wentao Zhang: College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha 410128, China
Ping Jiang: College of Mechanical and Electrical Engineering, Hunan Agricultural University, Changsha 410128, China

Agriculture, 2023, vol. 13, issue 3, 1-13

Abstract: In view of the problems that the fuselage inclines and the driving straightness is difficult to guarantee due to the sinking and sliding of the wheels when the high-clearance plant protection machine is working in the paddy field, this paper takes high-clearance wheels as the research object, based on the paddy field driving environment, establishes a prediction model of the wheel subsidence through derivation, and explores the influence of different wheel parameters on the subsidence characteristics through experiments, so as to improve the chassis trafficability. At the same time, using the test data under different wheel parameters, the prediction model of the settlement of the working chassis with high clearance is correspondingly modified. Finally, the paddy field trafficability of the working chassis is compared and analyzed based on different tire parameters. The results show that when the wheel slip rate is 0.5, the traction force of the solid tire is 37% higher than that of the pneumatic tire; when the height of the wheel spike increases, the traction force increases, and the settlement decreases obviously; proper increase of the wheel diameter can improve the passing performance of the chassis; with the increase of the tire width, the angle of soil penetration decreases while the tire is driving, and the angle of the slope climbing increases; and when the load changes, the driving coefficient is proportional to the traction coefficient, and the tire resistance coefficient is inversely proportional to the traction coefficient. Through the research on the settlement mechanism of the high-clearance operation chassis and the analysis of the paddy field trafficability, the stability of the high-clearance plant protection machine in the paddy field has been improved, providing a platform and guarantee for subsequent precision operation.

Keywords: wheel–ground interaction; sink mechanism; slip rate; sink volume; hook traction (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: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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