Authors

Abstract

This study addresses the challenges of high resistance, energy consumption, and complex operations in deep trenching in orchards by proposing a reverse trenching and backfilling scheme. A reverse-rotating chain trencher was designed for integrated trenching and backfilling. Through mechanical analysis and MBD-DEM coupled simulation, operating parameters affecting the process were identified. A three-factor, three-level test with forward speed(v), rotation speed(n), and working angle(γ) determined the optimal parameters as v=0.29 km/h, n=393r/min, γ=15°. Field tests yielded specific energy consumption of 0.328 kW·h m-3 and mean torque of 416.66 Nm, with simulation errors of 2.18% and 4.03%, respectively.

Abstract in Chinese

本研究针对果园深开沟作业中存在的阻力大、能耗高及作业复杂等问题，提出了反向开沟与回填作业方式，设计了反向旋转链式开沟回填一体机。通过力学分析与MBD-DEM联合仿真，明确了影响该作业方式运行的主要参数。通过三因素三水平正交试验确定了前进速度（v）、刀轴转速（n）和工作角度（γ）的最佳参数组合为v=0.29 km/h、n=393 r/min、γ=15°。田间试验得到的比能耗为0.328 kW·h m-3，平均扭矩为416.66 Nm，仿真误差分别为2.18%和4.03%。