Design And Experimental Study On Fertilizer Shovel Of Fertilizer Cultivator

Cultivator is an important part of China’s agricultural intensification.cultivator can loose surface soil,turning the soil,removing weeds,increase temperature to promote the decomposition of fertilizer absorption,and reduce water evaporation,maintaining a certain subsurface soil moisture;addition,eliminate the soil cultivator formation compaction,improve soil traits with disabilities,increase soil permeability,and create good growing conditions for the crop,the crop can promote high yield.Corn seedling cultivation can loosen the soil and promote plant root development,eliminate weeds between crop rows to improve the nutritional condition of corn.In Heilongjiang, corn cultivator can increase1-3degrees Celsius in temperature,it is important to the growth of seedlings.Through agronomic trials,research dressing fertilizer from absorbing the impact of the corn plant,to determine the position of the lateral arrangement.In the0-60mm fertilizer application machinery will hurt the plant roots,considered by the test results in favor of the side120mm fertilizer absorption can help to improve production.Access to relevant literature,according to mature technology,agricultural and agronomic integration requirements,design overall structure fertilizer cultivator,determined cultivator main technical parameters,create a virtual three-dimensional solid model cultivators.The machine structure is simple,power consumption is small,can once complete subsoiling and side deep fertilizin.By strength check of cultivator fertilizer rack and finite element analysis,ensure to cultivators frame strength in the state of full suspension safe and reliable.Using three factors and five levels in response surface methodology for optimizing experimental study opener proceed.Research buried clearance angle,radius of curvature, opener speed,three main factors in the process of advancing the work of the resistance and disturbance of the soil.For each regression variance analysis,the impact of various factors on the opener of the running resistance order.opener speed>opener radius of curvature>opener of buried clearance angle; various factors on soil disturbance order:opener speed>opener radius of curvature>opener of buried clearance angle.Using Design Expert software to optimize the analysis of test results obtained opener buried clearance angle,radius of curvature,speed and resistance to soil disturbance into the regression model of the indicators.Determine the optimum structure of the program opener:opener speed1.lm/s,opener radius of curvature is31mm,buried clearance angle of11°.Using discrete element method in soil science and soil dynamics,identify the various physical and mechanical properties of soil parameters,including soil moisture content,density,firiction angle of the soil,soil firmness,etc.Discrete element software EDEM for opener process simulation analysis,the value of the results of simulation analysis and practical tests to get a certain bias,because of there is a error between the presence of soil mechanics and certain parameters of the model,however,the simulation has the same trend as the actual test results,indicating that the use of discrete element software has certain reference for the opener working process simulation results.