Design And Dynamic Analysis Of2BMM-3Precision Cotton Planter With Non-tillage Crushed Stubble

Cotton is the main crop in the Yellow River Delta. The cotton is usuallyplanted once a year, and thus we cannot make full use of the land. So experts putforward the cotton and wheat cropping rotation system. The cotton planterdiscussed in this dissertation is no tillage, stubble, and highly precise, which isbased on the cotton and wheat cropping rotation system. It is the combination ofstubble and planter. In order to avoid wasting energy when sowing, it’s necessaryto do the force analysis and testing of the main energy-consuming components,such as the rotary blade and furrow opener. The subject is studied in this thesis andseveral innovations are presented.According to agronomic requirements and the main parameters of the cottonharvester, the overall structure of the cotton planter is designed. This includes thedesign of shape, size, and installation methods of the rotary blade, the selectionand the main parameters of the furrow opener, the size and shape of the fertilizerand seed tanks, the size of the press wheel. The main parameters of the variouscomponents are obtained through these analysis, which lay the foundation for thethree-dimensional model. Model the various components of cotton planter usingSolidWorks and check interference of the overall cotton planter based on thethree-dimensional model. Meanwhile, it provides a model for finite elementanalysis.The force analysis of the rotary blade and furrow opener is made, and the finiteelement analysis of them is achieved by ANSYS. It can be seen whether thestrength of the rotary blade meets the requirements and the position of the mainstress based on the finite analysis of the rotary blade. And this can provideinstruction for selecting the suitable materials and design of the rotary blade. Itcan be seen whether the column of the furrow opener breaks while operating basedon the finite element analysis. And this can provide instruction for the suitablematerials and design of the furrow opener.The main factors affecting the torque of rotary blade and the force of furrowopener are analyzed, and test is conducted in the soil bin. Considering that thereare many influence factors, the paper uses the orthogonal test and does the linearregression analysis. The results of the rotary blade test show that the speed ofrotary blade is the major factor influencing the torque. The second factor is the depth of tillage. The speed of the machine plays minimal impact on it. The resultsof the furrow opener test show that the hardness of the soil is the major factor ofresistance, following by planting depth. And the speed of the machine playsminimal impact on it. According to the test results, we can make planter powerconsumption to a minimum by improving the variable factors while operating, andachieve energy saving operation. It can provide the basis for selecting supportingpower.