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Optimization Of Deep Plow Shovel And Its Wear Resistance Technology

Posted on:2016-09-08Degree:MasterType:Thesis
Country:ChinaCandidate:Z Y WangFull Text:PDF
GTID:2133330476951879Subject:Agricultural mechanization project
Abstract/Summary:PDF Full Text Request
According to the plow shovel in farming, it is mainly influenced by the process in the plow shovel soil contact stress position and trends of soil was simulated with discrete element software,through simulation,To prove the discrete element software simulation and actual plow shovel plough shovel work consistent force tendency, discusses the use of discrete element method feasibility and the scientific nature of soil dynamics analysis and simulation, the simulation method of updating the soil. Study on the method of step by step to improve the plow shovel, The optimization of bionic plow shovel plough shovel and two kinds of welding process, and systematic study of the wear failure of plough shovel and soil interaction, Combining with the use of software and laboratory tests and the field test the research methods. Comparison of the plow shovel wear, service life, making the price of ordinary plough shovel and improved., The main conclusions are as follows:Put forward new ideas on soil dynamics is simulated by discrete element method, Analysis of how to build the structure model and the establishment of complex boundary problem, simulation of the plow shovel work in soil by using the discrete element software, consistent with the laboratory results, to prove the feasibility of the software, Put forward the method for further research.By means of the orthogonal test method, Analysis on working status under the condition of the same, Effects of tillage depth and speed of tillage resistance. The primary and secondary order, Tillage depth and tillage speed. In the cultivation process, control the tillage depth is an important link to improve farming efficiency and save the investment.According to the discrete element software analysis, use of Pro/E to establish model of plow shovel, based on the ANSYS software, the optimization of the plough shovel can solve the problem of stress concentration at the tip of the blade. Deep loosening shovel the maximum deformation and the maximum stress in the allowable deformation and allowable stress range, At the same time, the laboratory results show that the optimized service life than common plow plow shovel shovel increased 1.3 times.Proposed the use of CO2 gas- jet sent new process of composite surfacing powder for welding surface bionic plow shovel,the results show that bionic surfacing plow blade service life by 1.87 times, the wear resistance increases by 2.07 times.Through the research of the software and laboratory of deep loosening plough shovel samples drawn plough shovel wear mechanism.Two kinds of improved, service life and wear resistance were increased significantly, compared with the ordinary plough shovel is improved by 1-2 times, and analyzed in the economy, although the two kinds of plough shovel are improved in the use of performance and service life, but the bionic plow shovel and the optimized plow shovel economic benefit was 0.51 yuan / hour, 0.36 yuan / hour, For the deep loose plough shovel in geometry, material process, further study of the theory and the method, provides the basis of science.
Keywords/Search Tags:Plough shovel, Discrete element, wear resistance, service life
PDF Full Text Request
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