Design and testing of a new type of soil throwing device for rotary plowing and mowing
In the process of ridging and mulching planting,it is necessary to evenly and efficiently throw the soil to compact the mulching film.Based on this,a new type of rotary tillage and seedling soil throwing and mulching machine is designed and its soil throwing device is analyzed.Firstly,the theoretical analysis of the soil throwing process was carried out,then the length and width parameters of the soil throwing blades were determined through the discrete element simulation analysis of the soil throwing device,and then the effects of different blade numbers,rotational speeds and blade tilt angles on the soil throwing volume were analyzed,and finally,an ANOVA analysis was carried out on the one-factor test by using the Design-Expert software to set up the regression model of the mean value of the soil throwing volume.The parameter combination to obtain the optimal value of the amount of soil thrown:the number of blades is 4,the rotation speed of the soil throwing wheel was 275 r/min,and the blade tilt Angle was 130°.Field tests were conducted on the optimal parameter combinations.The results showed that the average quality of soil dumping was 10.4 kg/s,which met the requirements of agronomic operation.
throwing and mulching machinerototilling and ridgingsoil throwing devicebladeresponse surface method
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