凸轮滚筒式农田残膜回收机设计与试验OA

Given the current inadequacies in the analysis of the operating mechanisms of farmland residual film pickup machines in China,as well as issues such as low operational efficiency and high contamination rates,a cam roller type farmland residual film recycling machine was designed.This machine utilizes a cam mechanism to drive the extension and retraction of the pickup teeth,thereby achieving the collection and separation of farmland film,and thereby improving the operational efficiency of farmland film recovery.By analyzing the movement trajectory of the pickup teeth,the contour curve of the cam was designed.Mechanical analysis of the residual film pickup process revealed that the viscous force ex-erted by soil on the film-soil mixture and the rotational speed of the cam roller were key factors influencing the viscous force.Kinematic analysis of the film pickup process was conducted,revealing that the rotational radius of the cam roller and the roller speed were key factors affecting the machine's performance.Cartesian coordinate system was established to analyze the film pickup process,and the machine's operational parameters were optimized.Using the forward speed of the residual film recovery machine,cam roller rotational speed,and cam rotational radius as experimental factors,and the residual film collection rate and impurity content as experimental indicators,field response surface experiments and parameter optimization verification experiments were conducted.The optimal operational performance parameters were de-termined to be forward speed of 5.7 km/h for residual film recovery machine,cam roller rotational speed of 698 r/min,cam base radius of 718 mm.Under this parameter combination,the residual film pickup rate in farmland was 88.2%,and the impurity rate was 32.6%,meeting farmland residual film recovery requirement.