CN202697161U - Coupling bionic surface of soil touch component of agricultural machinery - Google Patents
Coupling bionic surface of soil touch component of agricultural machinery Download PDFInfo
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- CN202697161U CN202697161U CN 201220340990 CN201220340990U CN202697161U CN 202697161 U CN202697161 U CN 202697161U CN 201220340990 CN201220340990 CN 201220340990 CN 201220340990 U CN201220340990 U CN 201220340990U CN 202697161 U CN202697161 U CN 202697161U
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Abstract
The utility model discloses a coupling bionic surface of a soil touch component of agricultural machinery. The coupling bionic surface comprises dung-beetle-body-surface-imitative slightly-convex bionic bulge structures and whale-head-contour-imitative bionic strip bulge structures, wherein the contour of each of the dung-beetle-body-surface-imitative slightly-convex bionic bulge structures conforms to the following mathematical expression: x<2>+y<2>+z<2>=R<2>; the adjacent bionic bulge structures are arranged according to a diamond manner, a smaller inclined angle in the diamond arrangement is theta, theta is more than 30 degrees and less than 60 degrees, and the dung-beetle-body-surface-imitative slightly-convex bionic bulge structures are applied to the surface of the component; a section contour line of each of the whale-head-contour-imitative bionic strip bulge structures conforms to the following mathematical expressions described in the specification, and the whale-head-contour-imitative bionic strip bulge structures are applied to rapid wear parts of the components; the component surface and the bulge structures are made of white iron, and the component core is made of nodular cast iron.
Description
Technical field
The utility model relates to a kind of agricultural machinery and touches native parts coupling bionic surface.
Background technology
The utility model of farming instrument is the critical event on the human history, and human operating efficiency and quality for raising farming instrument done long improvement, and the Yangcheng Mouldboard famous such as China adopts the white iron manufacturing, has good wearability and takes off native resistance reducing performance.Fast development along with agricultural mechanization, ploughing speed improves greatly, and the farming environment becomes increasingly complex, for the farming tool performance, especially the performance of touching native cultivating member has proposed more and more higher requirement, and the fragility of the materials such as white iron has limited its application in high speed, impact operating mode.In order to satisfy the impact for tactile native parts mechanical property under the high speed tillage condition, at present often with high-quality steel such as 65Mn, adopt Cold-forming process production.But processing cost is higher, and wearability is also poor than white iron, has been subject to certain impact service life.
Improve to touch the wearability of native parts, reducing production costs and the aspect such as tillage resistance, patent report is all being arranged both at home and abroad.At present, patent achievement mainly concentrates on material modification and two aspects of bionics techniques application.
One, aspect material modification:
1, Chinese patent application number: 01133458.4, the day for announcing is 2005.01.26.Denomination of invention is made binder alloy for " bionic non-smooth antifriction composite coating and preparation method thereof " discloses a kind of non-smooth antifriction composite coating with multi-element Cu-base solder, to strengthen wear-resisting hard point particle is connected with matrix steel, form a non-smooth antifriction composite coating on the surface of matrix steel, the composition of multi-element Cu-base solder is: zinc, manganese, nickel, tin, silicon, rare earth, surplus copper; The composition of brazing flux is: the mixture of boric acid and borax, and add a small amount of fluoride; The composition that strengthens wear-resisting hard point particle is carbide, and granularity is 50～100 orders, adds total amount and exists: 20～80Wt%.The preparation method of non-smooth antifriction composite coating: after the preparation smelting of multi-element Cu-base solder by above-mentioned constituent, the granulation size is 20～80 order powder, by mass percentage: 30～70% with 20～80% tungsten carbide, titanium carbide, carborundum in a kind of, two kinds or three kinds and brazing flux 1～3 evenly mix, after heating multi-element Cu-base solder and brazing flux fusing, multi-element Cu-base solder is put soldering with hard and is formed a non-smooth antifriction composite coating at the matrix steel surface, to improve the wearability of the mechanical part that is unearthed.
2, Chinese patent application number: 91106940.2, the day for announcing is 1994.01.26, denomination of invention discloses a kind of high-abrasive material for " anti-wear material for long-life digging elements and manufacture method thereof ", be used for the processing of the engineering machinery digging elements such as agricultural, mine, national defence, take general steel as mother metal, surface spraying weld one deck transitional horizon and one deck wearing layer, transitional horizon contains Cr, B, Si, Ni component, wearing layer is the melts of WC and bonded metal, wherein WC content 50～70%, and binding metal contains Cr, B, Si, Cu, Ni component.
Two, in the bionics techniques application facet:
1, Chinese patent application number: 201010166033.5, the day for announcing is 2010.09.22, denomination of invention discloses a kind of conical soil parts with abrasion-proof geometry surface for " a kind of conical soil parts with abrasion-proof geometry surface ", these parts are comprised of the bionic geometric structure unit that matrix and matrix surface distribute, and described bionic geometric structure unit comprises convex closure type, pit type, annular protruding rib stripe shape, annular recessed rib type, spiral convex closure type, spiral pit type, spiral prominence rib type and the recessed rib type of spiral.
2, Chinese patent application number: 201010166033.5, the day for announcing is 2009.12.16, and denomination of invention discloses a kind of bionic, drag-reducing shovel plate of ridge-forming apparatus for " bionic, drag-reducing shovel plate of ridge-forming apparatus and method for designing thereof ", and this shovel face is with y=-0.0l48x
2+ 0.86563x-1.51 is crestal line, y=-0.0054Z
2+ 30.49 is plain line, and plain line is along the formed curved surface of crestal line.
3, Chinese patent application number: 200810050347.1, the day for announcing is 2010.03.17, denomination of invention discloses a kind of bionic abrasion-proof structure surface for " rib type bionic abrasion-proof structure surface ", particularly relates to a kind of rib type Bionic wear-resisting geometry surface.The scale surface that the utility model is based on soil burrowing animal pangolin has the geometry feature of anti-soil abrasive wear, its objective is to solve wear problem existing and the bulk material contact component.This bionic abrasion-proof structure surface is with existing equipment or member and the surface modification structure that contacts material, sets up from the teeth outwards a series of ribbed shape structure with certain geometric parameter and spacing.Its Bionic wear-resisting planform is: y=asin (bx+c).Wherein, a-amplitude, b-frequency, c-initial phase, 0＜a≤12mm, 0≤bx-c≤π, 0≤x≤20mm.Rib spacing: 0＜L＜30mm.
The prior art scheme as can be known, for being subjected to the serious parts of abrasive wear take the tactile native cultivating member of agricultural machinery as representative, the main method that improves its wearability is to optimize material and use bionics techniques, fact proved it all is effective, but the general of these two kinds of methods need to carry out secondary operations and even repeatedly processing in process of production, greatly increased the production cost of parts.
Summary of the invention
The purpose of this utility model is will solve present agricultural machinery to touch native cultivating member wearability relatively poor, the problem that production cost is higher, and provide a kind of agricultural machinery to touch native parts coupling bionic surface.
The utility model is comprised of the bionical bulge-structure of imitative dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head; The appearance profile of the bionical bulge-structure of each imitative dung beetle body surface dimpling meets following mathematic(al) representation:
x
2+y
2+z
2=R
2
X wherein, y and z are the x-axis, y-axis and z-axis in the three-dimensional system of coordinate;
R＜4mm wherein; High H＜the 2mm of bionical bulge-structure, bionical bulge-structure center distance L＜25mm.Be platform or pit on the top of bionical bulge-structure, platform or pit diameter r
1＜2mm, pit are hemispherical, the pit radius r
2＜2mm, pit depth H
1＜2mm.As depicted in figs. 1 and 2;
Adjacent bionical bulge-structure is arranged according to the rhombus mode, is θ than clip angle angle in the diamond array, 30o＜θ＜60o, and distance be L between adjacent bionical bulge-structure, concerns below bionical bulge-structure spacing L and bionical bulge-structure height H satisfy:
As shown in Figure 3, diagonal long in the diamond array is parallel with soil movement direction in the cultivating procedure, and the bionical bulge-structure of imitative dung beetle body surface dimpling is applied to the surface of parts.
The cross section contour of the bionical strip projected parts structure of imitative cetacean contouring head meets following mathematic(al) representation:
X wherein and y are x axle and the y axle in the two-dimensional coordinate system;
Wherein n is characteristic coefficient, 2≤n≤4, in addition a≤12mm in the formula, 0o≤θ≤180o.
The bionical strip projected parts structure applications of imitative cetacean contouring head is in the damageable zone of parts.
The bionical bulge-structure of parts surface and imitative dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head are white iron, and the parts core is spheroidal graphite cast-iron.
The utility model compared with prior art beneficial effect is:
1, a kind of agricultural machinery described in the utility model touches native parts coupling bionic surface and is aimed at the abrasive conditions that agricultural machinery touches native farming workpiece diverse location, has carried out respectively bionic design and application.At the parts easily-worn position, designed the bionical strip projected parts structure of imitative cetacean contouring head, do in the process can to reduce the tillage resistance of parts when farming to the effect of soil water conservancy diversion tactile geotechnique; At parts surface, designed the bionical bulge-structure of imitative dung beetle body surface dimpling, when increasing the parts wearability, play the effect of taking off native drag reduction.Experimental result shows that the utility model is compared with the smooth surface parts of same material, and wearability on average increases by 6 ~ 12%, and working resistance on average reduces by 4 ~ 7%.
2, the bionical strip projected parts structure of imitative cetacean contouring head of the present utility model is that method by castingin processes at one time in casting process, and having avoided the techniques such as built-up welding that parts are carried out the cost that secondary operations causes increases.
3, top layer and the bionical projection of white iron formation have improved wearability, the service life of parts and have taken off native resistance reducing performance; The parts core that spheroidal graphite cast-iron consists of, the mechanical property of assurance parts.
4, the utility model adopts the method time processing moulding of castingin, has designed according to actual needs composite bionic surface texture form, on the basis of improving the parts serviceability, and the production cost of the parts that greatly reduce.
Description of drawings
Fig. 1 and Fig. 2 are the schematic diagram of the bionical bulge-structure of the imitative dung beetle head dimpling of the utility model.Wherein Fig. 1 is that the top is the schematic diagram of platform; Fig. 2 is the schematic diagram of top pit.
Fig. 3 is the arrangement mode schematic diagram of the bionical bulge-structure of the utility model.
Fig. 4 is the cross section contour schematic diagram that the utility model adopts the bionical bulge-structure of strip of the characteristic coefficient n=3 that embedding method forms.
Fig. 5, Fig. 6 and Fig. 7 are the schematic diagram that the utility model is applied to plough.Fig. 5 wherein is the front view of plough; Fig. 6 is the left view of plough; Fig. 7 is the vertical view of plough.
Embodiment
Higher but the poor toughness of white iron hardness, touching native cultivating member by its agricultural machinery of producing can not adapt in high speed, impact the application of operating mode, and spheroidal graphite cast-iron or cast steel components hardness and wearability are relatively poor, be directed to this, the utility model also is optimized design to casting iron liquid composition and imbedding process.Tend in the spheroidal graphite cast-iron production process because composition and technological problems make parts the air chill phenomenon occur, be that white iron appears in parts surface, the poor toughness because the hardness of white iron is higher, can cause parts to stretch, tired wait hydraulic performance decline, so air chill often is defined as the harmful phenomenon in the spheroidal graphite cast-iron production process, but the hardness of white iron is high, wearability and to take off native resistance reducing performance good, so the utility model is directed to the air chill phenomenon parts composition and production technology is improved.Founding materials composition described in the utility model, nodularization in the fusion process, inoculated technology is similar to production spheroidal graphite cast-iron, but the quality of Si and C and Mn and S in the cast iron liquid is watered in strict control, Si is 0.6-0.8 with the quality of C than scope, Mn is 16-20 with the quality of S than scope, simplifies simultaneously to prevent in the general spheroidal graphite cast-iron production process that air chill is such as technological means such as covering rice husks.It is that hardness is high that the agricultural machinery that adopts the utility model to produce touches native cultivating member surface, and the white iron that wearability is good, core are preferably spheroidal graphite cast-iron of toughness, have guaranteed so simultaneously wearability and the mechanical property of parts.
The utility model is comprised of the bionical bulge-structure of imitative dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head; The appearance profile of the bionical bulge-structure 1 of each imitative dung beetle body surface dimpling meets following mathematic(al) representation:
x
2+y
2+z
2=R
2
X wherein, y and z are the x-axis, y-axis and z-axis in the three-dimensional system of coordinate;
R＜4mm wherein; Bionical bulge-structure 1 high H＜2mm, bionical bulge-structure 1 center distance L＜25mm.Be platform or pit on the top of bionical bulge-structure 1, platform or pit diameter r
1＜2mm, pit are hemispherical, the pit radius r
2＜2mm, pit depth H
1＜2mm.As depicted in figs. 1 and 2;
Adjacent bionical bulge-structure 1 is arranged according to the rhombus mode, is θ than clip angle angle in the diamond array, 30o＜θ＜60o, and 1 distance of adjacent bionical bulge-structure is L, bionical bulge-structure 1 spacing L and bionical bulge-structure 1 height H satisfy following relation:
As shown in Figure 3, diagonal long in the diamond array is parallel with soil movement direction in the cultivating procedure, and the bionical bulge-structure 1 of imitative dung beetle body surface dimpling is applied to the surface of parts.
The cross section contour of the bionical strip projected parts structure 2 of imitative cetacean contouring head meets following mathematic(al) representation:
X wherein and y are x axle and the y axle in the two-dimensional coordinate system;
Wherein n is characteristic coefficient, 2≤n≤4, in addition a≤12mm in the formula, 0o≤θ≤180o.
Be illustrated in figure 4 as when n=3 the feature outlines in the wearability cross section of the bionical strip projected parts structure 2 of imitative cetacean contouring head.The bionical strip projected parts structure 2 of imitative cetacean contouring head is applied to the damageable zone of parts.
The bionical bulge-structure 1 of parts surface and imitative dung beetle body surface dimpling and the bionical strip projected parts structure 2 of imitative cetacean contouring head are white iron, and the parts core is spheroidal graphite cast-iron.
In order further to strengthen the wearability of the bionical projection of strip described in the utility model, the prefabricated section that adopts in the imbedding process is mainly by the Fe powder, the Si powder, and the C powder, the Ti powder forms.The C powder issues intercrescence with the high temperature that the Ti powder can produce and becomes reaction to generate TiC when casting, the TiC synthetic reaction can be emitted a large amount of heat further, conversion zone peripheral part material is melted, and rapid solidification can improve the interface of TiC between matrix material and is combined afterwards, increases the strength of materials; TiC can improve hardness and the intensity of castingin strip biomimetic features effectively as the highest metal carbides of hardness in addition, effectively improves the wearability of material and parts.
The utility model is applied to the example of plough:
Such as Fig. 5, Fig. 6 and shown in Figure 7, plough 3 is the native cultivating members that touch commonly used, and the sowing of being everlasting is used during intertillage, because the plough embedded depth is darker, the resistance that is subject to during work is larger; The contact soil hardness is larger during farming, and component wear is comparatively serious.Plough 3 is by embedding method production; Plough 3 surfaces are white iron, and core is spheroidal graphite cast-iron; There is the bionical bulge-structure 1 of imitative dung beetle body surface dimpling as depicted in figs. 1 and 2 on plough 1 surface, bionical bulge-structure 1 radius R=2mm, and bionical bulge-structure 1 high H=1mm, there is r on bionical bulge-structure 1 top
1The platform of=1mm; Bionical bulge-structure 1 is by diamond array, and less angle is 60o in the diamond array, bionical bulge-structure 1 center distance L=5mm, and diagonal long in the diamond array is parallel with soil movement direction in the cultivating procedure; Be to fill the cross spider zone among Fig. 7 in the more serious position of plough 3 wearing and tearing, form the bionical strip projected parts structure 2 of imitative cetacean contouring head by embedding method, bionical strip projected parts structure 2 cross section contours of imitative cetacean contouring head meet the feature contour wire shaped of n=3 described in Fig. 4, its height H
0=4mm.
Claims (3)
1. an agricultural machinery touches native parts coupling bionic surface, it is characterized in that: be comprised of the bionical bulge-structure of imitative dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head;
The appearance profile of the bionical bulge-structure of each imitative dung beetle body surface dimpling meets following mathematic(al) representation:
x
2+y
2+z
2=R
2
X wherein, y and z are the x-axis, y-axis and z-axis in the three-dimensional system of coordinate;
R＜4mm wherein; High H＜the 2mm of bionical bulge-structure, bionical bulge-structure center distance L＜25mm is platform or pit on the top of bionical bulge-structure, platform or pit diameter r
1＜2mm, pit are hemispherical, the pit radius r
2＜2mm, pit depth H
1＜2mm; Described adjacent bionical bulge-structure is arranged according to the rhombus mode, is θ than clip angle angle in the diamond array, 30o＜θ＜60o; The bionical bulge-structure of imitative dung beetle body surface dimpling is applied to the surface of parts;
The cross section contour of the bionical strip projected parts structure of each imitative cetacean contouring head meets following mathematic(al) representation:
X wherein and y are x axle and the y axle in the two-dimensional coordinate system;
Wherein n is characteristic coefficient, 2≤n≤4, in addition a≤12mm in the formula, 0o≤θ≤180o; The bionical strip projected parts structure applications of imitative cetacean contouring head is in the damageable zone of parts.
2. a kind of agricultural machinery according to claim 1 touches native parts coupling bionic surface, it is characterized in that: distance is L between the bionical bulge-structure of described adjacent imitative dung beetle body surface dimpling, and bionical bulge-structure spacing L and bionical bulge-structure height H satisfy following relation:
Diagonal long in the diamond array is parallel with soil movement direction in the cultivating procedure.
3. a kind of agricultural machinery according to claim 1 and 2 touches native parts coupling bionic surface, it is characterized in that: described parts surface and the bionical bulge-structure of imitative dung beetle body surface dimpling and the bionical strip projected parts structure of imitative cetacean contouring head are white iron, and the parts core is spheroidal graphite cast-iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340990 CN202697161U (en) | 2012-07-13 | 2012-07-13 | Coupling bionic surface of soil touch component of agricultural machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220340990 CN202697161U (en) | 2012-07-13 | 2012-07-13 | Coupling bionic surface of soil touch component of agricultural machinery |
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| Publication Number | Publication Date |
|---|---|
| CN202697161U true CN202697161U (en) | 2013-01-30 |
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|---|---|---|---|
| CN 201220340990 Withdrawn - After Issue CN202697161U (en) | 2012-07-13 | 2012-07-13 | Coupling bionic surface of soil touch component of agricultural machinery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714951A (en) * | 2012-07-13 | 2012-10-10 | 吉林大学 | Coupling bionic surface of agricultural machinery soil-engaging component |
| CN109063376A (en) * | 2018-09-07 | 2018-12-21 | 山东理工大学 | Convex closure type electromagnetic type bionics plow moldboard based on the clean dung beetle sand dune shape design of the legendary god of farming |
| CN113549865A (en) * | 2021-07-27 | 2021-10-26 | 黑龙江省农业机械工程科学研究院 | Iron-based alloy powder, ribbed bionic resistance-reducing wear-resistant structure, and preparation method and application thereof |
-
2012
- 2012-07-13 CN CN 201220340990 patent/CN202697161U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714951A (en) * | 2012-07-13 | 2012-10-10 | 吉林大学 | Coupling bionic surface of agricultural machinery soil-engaging component |
| CN109063376A (en) * | 2018-09-07 | 2018-12-21 | 山东理工大学 | Convex closure type electromagnetic type bionics plow moldboard based on the clean dung beetle sand dune shape design of the legendary god of farming |
| CN113549865A (en) * | 2021-07-27 | 2021-10-26 | 黑龙江省农业机械工程科学研究院 | Iron-based alloy powder, ribbed bionic resistance-reducing wear-resistant structure, and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130130 Effective date of abandoning: 20140611 |
|
| RGAV | Abandon patent right to avoid regrant |