Authors

Abstract

Automatic orientation and conveying are critical to enhancing the operational efficiency of postharvest cabbage commercial processing (e.g., trimming), reducing labor input costs, and boosting commodity added value. To address this demand, this study presents the optimal design of an automatic orientation and conveying device for postharvest cabbages based on conical treads, leveraging the moment of inertia principle. Through dynamic modeling and analysis, the key structural parameters governing orientation performance and their feasible ranges were quantified. Furthermore, the orientation reliability of the proposed structure was validated via ADAMS-based motion simulation. A prototype of the postharvest cabbage orientation and conveying device was fabricated, and parameter optimization experiments were conducted to determine the optimal operating conditions. The results indicate that the device achieves superior operational performance when the orientation roller angle is set to 20°, the axial clearance is 60 mm, and the conveying chain linear speed is 300 mm/s. Under these optimal parameters, the orientation success rate of postharvest cabbages reaches 98.67 ± 1.05%, with an orientation angle deviation of 5.18 ± 0.39°. This design remarkably improves the orientation and conveying precision of postharvest cabbages, laying a solid theoretical foundation and providing technical support for subsequent commercial processing operations such as root cutting.

Abstract in Chinese

自动定向输送可有效提升采后甘蓝整修等商品化处理的作业效率，减少人工成本，提升其商品附加值。本文根据转动惯量原理优化设计了一种基于圆锥踏面的采后甘蓝自动定向输送装置，通过动力学分析确定了影响定向效果的关键结构参数及范围，并基于ADAMS运动仿真分析进一步验证了该结构的定向可行性。搭建采后甘蓝定向输送装置样机并进行参数优化试验，结果表明：定向辊锥度角度为20°，轴向间隙为60 mm，输送链条线速度为300 mm/s时作业效果最佳，采后甘蓝定向成功率为98.67±1.05%，其夹角为5.18±0.39°，进一步提升了采后甘蓝的定向输送性能，为后续根茎整修等商品化处理提供理论依据和技术支撑。