Abstract
Peanut picking is the key technology of a semi feed peanut combine harvester, but currently, the unclear mechanism of peanut picking operation and insufficient optimization design methods and basis have restricted the innovation level of the entire equipment and the improvement of operation quality. This paper conducts a multi body dynamic simulation study on the rigid flexible coupling of a semi fed peanut picking mechanism. The results showed that with the increase of the angle between the chain rollers, the impact force of the peanut picking blades on the peanut pod gradually decreased, and the tensile force between the pod and the stalk also decreased during picking. The faster the speed of the grip** conveyor chain, the gradual decrease in the impact of the peanut picking blades on the peanut pod, resulting in a corresponding decrease in the tension between the pod and the stalk during picking. When the rotation radius of the peanut picking roller is constant, the impact force of the peanut picking blades on the peanut pod gradually increases, thereby increasing the force between the pod and the stalk during picking. When a blades strikes a pod, the velocity and acceleration of the pod centroid gradually increase with the increase of the strike force. Integrate a high-speed photography testing system, build a semi feeding peanut pod picking test platform, study the peanut stalk-pod separation process under the above simulation conditions, obtain the movement trajectory and force characteristics of the pod, and explore the mechanism of production and impact of operation quality.
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Wang, B., Lv, X., Hu, Z. (2024). Multibody Dynamics Simulation and Experimental Study on the Semi Feed Peanut Picking Mechanism. In: Rui, X., Liu, C. (eds) Proceedings of the 2nd International Conference on Mechanical System Dynamics. ICMSD 2023. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-8048-2_23
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DOI: https://doi.org/10.1007/978-981-99-8048-2_23
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