Coupling bionic surface of agricultural machinery soil-engaging component
A technology for agricultural machinery and components, applied in agriculture, excavation/covering trenches, applications, etc., can solve the problems of high production cost, poor wear resistance, etc., and achieve improved performance, increased wear resistance, and guaranteed mechanical performance. Effect
Inactive Publication Date: 2014-06-11
JILIN UNIV
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Problems solved by technology
[0012] The purpose of the present invention is to solve the problems of poor wear resistance and high production cost of the current agricultural machinery touching the soil tillage parts, and to provide a bionic surface coupled with the soil touching parts of the agricultural machinery
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[0036]White iron has high hardness but poor toughness, and the agricultural machinery parts touched by the soil produced by it cannot be used in high-speed and impact conditions, while ductile iron or cast steel parts have poor hardness and wear resistance. , the present invention also optimizes the design of the cast iron composition and inlay casting process. During the production of nodular cast iron, components and process problems often lead to whitening of parts, that is, white iron appears on the surface of parts. Due to the high hardness of white iron but poor toughness, the performance of parts such as stretching and fatigue will be reduced. , so whitening is often defined as a harmful phenomenon in the production process of nodular cast iron, but white iron has high hardness, excellent wear resistance and soil removal and drag reduction performance, so the present invention is aimed at the whitening phenomenon on component components and The production process is imp...
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The invention discloses a coupling bionic surface of an agricultural machinery soil-engaging component. The coupling bionic surface consists of bionic convex structures with dung beetle-like shell dimpling and bionic strip convex structures with cetacean-like head outlines, wherein the outline of each bionic convex structure with dung beetle-like shell dimpling accords with the following mathematical expression: x<2>+y<2>+z<2>=R<2>; the adjacent bionic convex structures are arranged according to diamond manner, wherein the angle of smaller included angle in the diamond arrangement is theta, theta is larger than 30 degrees and smaller than 60 degrees, and the ionic convex structures with dung beetle-like shell dimpling are applied to the surface of the component; the outline of the cross section of the bionic strip convex structure with cetacean-like head outline accords with the mathematical expression: x=na*cosbeta-a*cosnbetay=na*sinbeta-a*sinbeta; the bionic strip convex structures with cetacean-like head outlines are applied to easily damaged parts of the component; and the surface of the component and the convex structures are made of white iron, and the core of the component is made of ductile cast iron.
Description
technical field [0001] The invention relates to a bionic surface coupled with soil-contacting parts of agricultural machinery. Background technique [0002] The invention of farming tools is an important event in human history. Human beings have made long-term improvements to improve the efficiency and quality of farming tools. For example, the famous Yangcheng plow mirror in my country is made of white iron, which has good wear resistance and durability. Soil-removing drag-reducing performance. With the rapid development of agricultural mechanization, the farming speed has been greatly increased, and the farming environment has become more and more complex. The performance of farming tools, especially the performance of soil-touching farming parts, has been put forward higher and higher requirements, and the brittleness of white iron and other materials It limits its application in high-speed and impact conditions. In order to meet the influence of high-speed farming on th...
Claims
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IPC IPC(8): A01C5/06
Inventor 贾洪雷庄健马云海齐江涛范旭辉刘春喜
Owner JILIN UNIV