Design and experiment of film unloading device for roller-type residual film recycling machine
To solve the problem of unreliable performance of the film unwinding device in the film recovery machine for the plow layer,a device for loosening the film by reversing the roller and forcibly unwinding the film from the unwinding roller was designed.The film unwinding device mainly consists of a forward and reverse mecha-nism and an unwinding roller,effectively achieving the film unwinding function.Analysis and parameter calculations were conducted for key working components,and effect of film unwinding conditions were determined.The experiment set the unwinding roller speed set at 167.86 r·min-1 and the roller reversal speed at 43 r·min-1.Using the forward speed of the implement,the unwinding roller speed,and the roller reversal speed as experimental factors,and using the film unwinding rate and the soil content in the recovered mixture as evaluation indicators,a three-factor,three-level orthogonal experiment was used.The experimental results were analyzed using Design-Ex-pert 13.0 software to obtain the interaction effects between each factor and the evaluation indicators.It was found that the factors affecting the film unwinding rate(in decreasing order of impact)were the roller reversal speed,the unwinding roller speed,and the implement's forward speed.For the soil content in the recovered mixture,the in-fluencing factors(in decreasing order of impact)were the unwinding roller speed,the implement's forward speed,and the roller reversal speed.By optimizing the regression model,the most suitable parameter combination for the operation of the film unwinding device was determined to be an implement forward speed of 4.37 km·h-1,a roller reversal speed of 184.70 r·min-1,and an unwinding roller speed of 61.95 r·min-1.Field tests were conducted u-sing this optimal parameter combination.The results demonstrated that the film unwinding rate of the device was 73.21％,and the soil content in the recovered mixture was 16.20％.The relative errors compared to the theoretical-ly optimized values did not exceed 1％,meeting the design requirements.
residual film recycling machinefilm unloading deviceroller-typedesignexperiment
万方数据
维普
