残膜回收机拾膜卸膜机构运动分析及实验

Motion Simulation and Orthogonal Experiment on Pole-teeth Plastic Film Residue Collector

根据搂草机滑道弹齿机构设计了杆齿式残膜回收机,对机构运动进行了仿真分析和正交试验。运用仿真分析得出杆齿末端的运动轨迹和不同速比下杆齿末端的加速度曲线,并利用土槽台架试验系统,对影响机具拾膜率及卸膜率的行进速度、速比(机具行进速度与杆齿轴转动线速度比)、杆齿入土深度3个主要因素进行了正交试验。试验结果表明:速比的变化对机构拾膜率的影响程度大于机具行进速度和杆齿入土深度的变化,当机具行进速度为0.85m/s、速比为1.5、托膜铲入土深度为50mm时,杆齿式拾膜机构、卸膜机构的拾膜率和卸膜率均达到优水平。

Pole-teeth plastic film collector was designed in accordance with slide-way pole-teeth hay rake mechanism. The pose of pole-teeth was determined its collection ratio and unloading film performance when the machine is operating. To further investigate the pose variation of pole-teeth collection and determine the optimal working condition, the motion simulation and the Orthogonal experiment were carried out. Motion simulation was presented pole-teeth end trajectory in the motion of plastic film collector and pole-teeth end acceleration curve in different speed ratio. By using the soil-bin trolley experiment, the orthogonal experiment with influence factors of machine operating speed, speed ratio （ the ratio of the speed of machine operating and spring-tooth axis speed） and the embedded depth of the pole-teeth for lifting film was carried out. The results was indicated that the variation of speed ratio have greater influence to machine performance compared with that of machine operating speed and the embedded depth of the pole-teeth. Moreover, the collection ratio of mechanism could reach the optimal level when the machine operating speed was 0.85m/s, the speed ratio was 1.5, and the embedded depth of the pole-teeth for lifting film was 50mm