Design and Test of a Tractor-Type Cotton Stalk Returning to Field and Residual Film Recovery Combined Operation Machine

In order to improve the quality and efficiency of the cotton industry and control the serious problem of residual film pollution in cotton fields, it is imperative to carry out mechanized residual film recovery. However, there are many problems with residual film recovery equipment. Among them, the most important solution is to solve the low rate of residual film pick-up and film rod winding operation. Machine operation problems such as low efficiency. This paper studies and designs the 4JSM-2.1 cotton straw returning to the field and residual film recovery combined operation machine. The key working parts of the machine are the post-throwing straw crushing part, the telescopic arc-shaped tooth residual film cleaning roller and the film unloading roller. The post-throwing straw returning method is used during operation to make the surface to be collected as clean as possible. Solve the problem of film rod winding, and then pick up the mulch film through the residual film cleaning roller, and the film unloading device will rotate the mulch film on the roller to the film collecting box. The pick-up rate of residual film is the main index to evaluate the performance of the combined operation machine for straw returning to the field and residual film recovery. The field test is carried out by using the orthogonal test analysis method based on the operating speed of the machine, the rotating speed of the residual film cleaning drum and the depth of the ripper teeth. Analyze the influence of the ratio of different parameters on the pick-up rate of the residual film, obtain the significance of the influence of each factor and the order of priority, and obtain the optimal level combination, so as to obtain the best working parameter ratio relationship of the machine, that is, the residual film The speed of the film cleaning drum is 57r/min, the working speed of the machine is 6km/h, and the pick-up rate of the residual film reaches 87% when the soil loosening tooth enters the soil depth of 50mm. It reaches the design value of the machine and the national standard (80%), which is better than the existing straw returning to the field and the official measurement of the residual film recovery combined operation machine has increased by 4%, verifying that the machine can meet the requirements of residual film recovery operation and can be used in actual production.