Optimal Design Of Parabolic Sub-soiling On Structure And Work Analysis

Now sub-soiling technology is widely used in the domestic and foreign countries. Sub-soiling method, you can break the plow pan, and deepen the arable layer. Sub-soiling, means more than the normal plow tillage depth, tillage operations. Because of the perennial plowing farming, which is followed the traditional flat plowing farming. When farming in a certain depth, the soil on the longitudinal profile is at the more obvious level. The underlying subsoil layer, the middle is the plow pan; the upper is the arable layer. The upper layer is good at soil structure; loosen topsoil, as well as gas, liquid, solid. With the increasing of the ratio of coordination adaptation of crop growth, soil moisture and permeability are increasing. Sub-soiling technology can deepen the plow layer, loosen soil structure, reduce soil erosion and water erosion, reduce surface runoff and increase water penetrating, which can also improve the environment; improve soil structure, increase soil organic matter content; as well as increase production, resource utilization, decrease production costs and increase revenue and improve economic efficiency.A good design of sub-soiling shovel, firstly the influence will reduce resistance which considers the design of it. This paper studies parabolic sub-soiling shovel is no exception. For many years, domestic and foreign research scholar sum up our plough body surface, and find those who withstood the test of time and the good performance of the body surface plough.those all can be approximately in some curve or straight line to express. Thus the surface of the body develops plough new design method. In1958they began to determine the vertical element to deep type bending of a series of subsoil plow drawing resistance. The experimental results show that which compared with the linear farming parts bending type of farming parts of the drawing resistance to low7%-20%. So, based on past experience and experiments for a parabolic deep loosening of the shovel experimental study has its necessity.This paper describes the status of domestic and foreign sub-soiling equipment, and the forms of the shovel as well as the introduction of sub-soiling technology. CATIA3D design Software put a different focus on the parabolic type shovel. By SPSS statistical software, analysis of field test results, the factors that affect the resistance of the size of the ranking followed by sub-soiling depth, sub-soiling speed, shovel type. Finally, application of the ANSYS finite element analysis of the workbench software cans analysis the sub-soiling shovel stress and strain. Using applied load to see whether the parabolic sub-soiling shovel designing is reasonable and whether the designing can be consistent with the actual production needs.Structure analysis which is based on the field test; you can get the result to influence the resistance element size list which includes depth of sub-soiling tillage, speed of sub-soiling, loosening shovel type. And the optimal combination scheme is established, namely, a single test factors verbose output table which is intercepted from a couple of comparison tables, where relatively significant maximum is level, as well as inspection probability, to mean the basis, considering the confidence interval on the test indexes which have significant influence. Refer to the above decision method, in order to subs-oiling depth, speed and deep loosening shovel type analysis. You can get the following conclusion: deep loosening shovel sixth is at the best level, namely, parabolic deep loosening shovel is rate6; fifth best level, namely deep loosening speed is3.0KM/h; sub-soiling depth first level is the best, namely the sub-soiling depth of20cm. Thus, resistance index which is corresponding to the experimental design.the results:A6, B1, C5is the best combination. And these three factors on the effect of resistance in descending order of importance is C-B-A.By using ANSYS finite element analysis AN SYS workbench on sub-soiling shank for stress, strain stress analysis, through imposing the sub-soiling shank applied load,you can test out the parabolic deep loosening shovel handle has reasonable design and meet the actual need of production.Through the computer simulation and field test, focusing on the different parabolic loosening shovel which is working on the performance test, to further improve the sub-soiling structure, performance parameter. In order to explore one kind of method, this is based on the SPSS statistics software and finite element method in loosening shovel shape optimization design.