CN102714949B - Bamboo-like wear-resistant surface - Google Patents

Bamboo-like wear-resistant surface Download PDF

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Publication number
CN102714949B
CN102714949B CN201210243453.8A CN201210243453A CN102714949B CN 102714949 B CN102714949 B CN 102714949B CN 201210243453 A CN201210243453 A CN 201210243453A CN 102714949 B CN102714949 B CN 102714949B
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bionical
bamboo
wear
bulge
bionical bulge
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CN102714949A (en
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贾洪雷
庄健
范旭辉
马云海
齐江涛
刘春喜
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Jilin University
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Jilin University
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Abstract

The invention discloses an agricultural machine soil-touching part with a bamboo-like wear-resistant surface, which is a columnar bionic convex structure of bamboo-like cross-section fiber, wherein a hemispherical dent is arranged in the center of the bionic convex structure; the radius r of the dent is larger than or equal to 1mm and smaller than or equal to 5mm; the outline of the bionic convex structure satisfies the mathematical expression: (x-r)<2>+y<2>=R<2>, (x+r)<2>+y<2>=R<2> and x<2>+(y-r)<2>=R<2>, wherein x and y represent the x axis and y axis in a two-dimensional coordinate system; R is the radius of the outline; R is larger than or equal to r and smaller than or equal to 5r; the center of the outline is positioned at the edge of the hemispherical dent of the center of the bionic convex structure; the height H of the bionic convex structure is smaller than 5mm; and the adjacent bionic convex structures are arranged according to diamond manner. The bamboo-like wear-resistant surface has good wear resistance and desorption performance.

Description

Agricultural machinery touches native parts
Technical field
The present invention relates to a kind of agricultural machinery and touch native parts, in particular, the present invention relates to a kind of in order to improve the tactile native parts anti-wear performance of agricultural machinery and the Bionic wear-resisting in service life surface.
Background technology
Along with the fast development of agricultural mechanization, ploughing speed improves greatly, and farming environment becomes increasingly complex, and for farming tool performance, the performance of especially touching native cultivating member has proposed more and more higher requirement.It is wear out failure that agricultural machinery touches native parts main failure mode in cultivating procedure, therefore improve the wearability that agricultural machinery touches native parts, thereby extend the service life of parts, reduce the cost that frequently replacing parts bring and become the important topic that agricultural machinery touches native parts research field.
Improve to touch the wearability of native parts, reducing production costs and the aspect such as tillage resistance, all having patent report both at home and abroad.At present, patent achievement mainly concentrates on new material application and two aspects of bionics techniques application.Adopt high-abrasive material to produce agricultural machinery and touch native cultivating member, adopt novel processing treatment technology to touch native cultivating member to agricultural machinery and process wearability and the service life that can obviously improve parts:
1, Chinese Patent Application No. is: 01133458.4, the day for announcing is 2005.01.26, and 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, will strengthen wear-resisting hard point particle to be connected with matrix steel, on the surface of matrix steel, form a non-smooth antifriction composite coating, 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 to exist: 20～80Wt%.The preparation method of non-smooth antifriction composite coating: after multi-element Cu-base solder is smelted by the preparation of above-mentioned constituent, granulation size is 20～80 order powder, by mass percentage: 30～70% evenly mix with a kind of, two kinds or three kinds and brazing flux 1～3 in 20～80% tungsten carbide, titanium carbide, carborundum, after heating multi-element Cu-base solder and brazing flux fusing, multi-element Cu-base solder is put soldering by hard and is formed a non-smooth antifriction composite coating at matrix steel surface.To improve the wearability of the mechanical part that is unearthed.
2, Chinese patent, the day for announcing is 1994.01.26, application number: 91106940.2, denomination of invention is " anti-wear material for long-life digging elements and manufacture method thereof " a kind of high-abrasive material of openly knowing clearly, processing for 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 is containing Cr, B, Si, Ni component, wearing layer is the melts of WC and bonded metal, wherein WC content 50～70%, and binding metal is containing Cr, B, Si, Cu, Ni component.
Bionics Study shows, animals and plants were through the evolution of 1 years, there is the 26S Proteasome Structure and Function that adapts to varying environment, at agricultural mechanical field, be subject to the inspiration of soil animal feature, soil animal is excavated organ and excavates the analysis of moving, adopt the morphological feature of simulation typical soil animal and the method for biological nature, the bionical agricultural machinery of developing touches native parts and aspect drag reduction anti-attrition, is obtaining obvious effect:
1, application number is: 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 ", the bionic geometric structure unit that these parts are distributed by matrix and matrix surface forms, 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, application number is: 200810050347.1, and 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.This invention is the geometry feature that the scale surface based on soil burrowing animal pangolin has resistance to soil abrasive wear, its objective is and solves wear problem existing and bulk material contact component.This bionic abrasion-proof structure surface is by 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.
3, application number is: 201010166033.5, and the day for announcing is 2009.12.16, denomination of invention is " bionic, drag-reducing shovel plate of ridge-forming apparatus and method for designing thereof ".A kind of bionic, drag-reducing shovel plate of ridge-forming apparatus has been described in creation, it is characterized in that 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.
More reported that patent is known, existing by application new material, new process technology improves agricultural machinery and touches native parts wearability and the patent report in service life, also has by the morphological feature of soil animal and biological nature being carried out to Bionic wear-resisting structure or Bionic wear-resisting surface that analysis mode develops and for agricultural machinery, touches the Patent Application Publication of native cultivating member simultaneously.But by plant structure being carried out to the designed Bionic wear-resisting structure of analysis mode, yet there are no open at present.
Bamboo has hollow structure and fiber reinforcing texture simultaneously, has good mechanical property, and in addition, experimental study shows, bamboo has good anti-wear performance and desorption performance.The present invention, by the analysis and research to bamboo microstructure, has designed a kind of imitative bamboo wearing face, touches wearability and the service life of native parts in order to improve agricultural machinery.
Summary of the invention
The object of the invention is to touch in order to improve agricultural machinery wearability and the service life of native cultivating member, reduce the cost that the frequent replacing of cultivating member brings, and provide a kind of agricultural machinery to touch native parts.
Bamboo has hollow structure and fiber reinforcing texture simultaneously, has good mechanical property, and in addition, experimental study shows, bamboo has good anti-wear performance and desorption performance.The present invention, by the analysis and research to bamboo microstructure, provides a kind of imitative bamboo wearing face, touches wearability and the service life of native parts in order to improve agricultural machinery.The wear-resisting bionic surface of this imitative bamboo consists of jointly a kind of wear-resisting bionic surface projection of imitative bamboo fibre cross section structure and the particular arrangement mode of bionical projection.
The present invention has been the agricultural machinery wear-resisting bionic surface of a kind of imitative bamboo that touched native part design.By to bamboo fibre microstructure, arrangement mode and wear-resisting and analysis desorption mechanism, designed a kind of wear-resisting bionical projection of imitative bamboo fibre cross sectional shape, simultaneously according to bamboo fibre in bamboo distribution mode, designed the arrangement mode of wear-resisting bionical projection.
Surface of the present invention is imitative bamboo wearing face, is the bionical bulge-structure of column of imitative bamboo cross-section fibers, and there is hemispherical pit at bionical bulge-structure center, and pit radius is r, 1mm≤r≤5mm, and the outline of bionical bulge-structure meets following mathematic(al) representation:
(x-r) 2+ y 2=R 2wherein ( r + R ) 2 2 < x < ( r + R )
(x+r) 2+ y 2=R 2wherein - ( r + R ) < x < - ( r + R ) 2 2
X 2+ (y-r) 2=R 2wherein ( r + R ) 2 2 < y < ( r + R )
X 2+ (y+r) 2=R 2wherein - ( r + R ) < y < - ( r + R ) 2 2
X wherein and y are x axle and the y axle in two-dimensional coordinate system.
Wherein R is profile radius, r≤R≤5r, and outer contour is centered close to the hemispherical pit edge of the structure heart in bionical projection, and bionical projection height is H, H<5mm;
The arrangement mode of described wear-resisting bionical bulge-structure is: adjacent bionical bulge-structure is arranged according to rhombus mode, in diamond array, compared with clip angle angle, be θ, 30 ° of < θ <60 °, adjacent bionical bulge-structure spacing is L, and bionical bulge-structure spacing L and bionical bulge-structure height H meet following relation:
10 < L H < 20
Diagonal longer in diamond array is consistent with glide direction.
The aligning method of above-mentioned wear-resisting bionical bulge-structure and bionical bulge-structure has formed a kind of imitative bamboo wearing face of the present invention jointly.
The present invention's beneficial effect is compared with prior art:
Present invention is directed to the wear problem that agricultural machinery touches native farming workpiece, by the imitation to bamboo fibre structure and arrangement mode, formed the imitative bamboo wearing face with excellent abrasive resistance and desorption performance.Experimental result shows, adopts the tactile native cultivating member of agricultural machinery of imitative bamboo wearing face to compare with similar smooth surface parts, and the resistance in operation process is not significantly increased, and wearability on average increases by 4～7%, and desorption ability significantly increases.
Accompanying drawing explanation
Fig. 1 is bamboo wood cross section wear surface microphoto.
Fig. 2, Fig. 3 are bionical bulge-structure schematic diagram of the present invention.Wherein, Fig. 2 is vertical view, and Fig. 3 is front view.
Fig. 4 is the arrangement mode schematic diagram of bionical bulge-structure of the present invention.
Fig. 5, Fig. 6 and Fig. 7 are for inventing the schematic diagram that is applied to plough.Wherein Fig. 5 is front view, and Fig. 6 is left view, and Fig. 7 is vertical view.
Embodiment
The present invention has designed a kind of imitative bamboo Bionic wear-resisting surface according to antiwear characteristic and the design feature of bamboo.Bamboo has good mechanical property, this has benefited from hollow structure and the fiber reinforcing texture of bamboo, simultaneously, research surface, the fiber reinforcing texture of bamboo makes bamboo have good wearability and desorption performance, so this kind of structure is suitable for being applied in the Bionic wear-resisting surface design field that agricultural machinery touches native parts.The fibre structure analysis of bamboo wear surface is found, the bamboo fibre that anti-wear performance is played an important role is regular symmetric shape, and center exists bowl configurations, the bamboo fibre distribution that assumes diamond in shape in bamboo, as shown in Figure 1.Test and show simultaneously, the bowl configurations at bamboo fibre center can obviously reduce the adhesive attraction of bamboo soil in the wear process with soil, improves the desorption performance of bamboo.
The microstructure of combined bamboo fabric of the present invention and bamboo fibre obtain distribution mode and have designed the imitative bamboo wearing face that touches native parts surface for agricultural machinery in bamboo, comprise the bionical bulge-structure of imitative bamboo fibre structure and the aligning method of bionical bulge-structure.The present invention copy bamboo fibre cross sectional shape profile design wear-resisting bionical bulge-structure, bionical bulge-structure is the bionical bulge-structure of column of imitative bamboo cross-section fibers, there is hemispherical pit 2 at bionical bulge-structure 1 center, pit 2 radiuses are r, 1mm≤r≤5mm, the outline of bionical bulge-structure 1 meets following mathematic(al) representation:
(x-r) 2+ y 2=R 2wherein ( r + R ) 2 2 < x < ( r + R )
(x+r) 2+ y 2=R 2wherein - ( r + R ) < x < - ( r + R ) 2 2
X 2+ (y-r) 2=R 2wherein ( r + R ) 2 2 < y < ( r + R )
X 2+ (y+r) 2=R 2wherein - ( r + R ) < y < - ( r + R ) 2 2
X wherein and y are x axle and the y axle in two-dimensional coordinate system.
Wherein R is profile radius, r≤R≤5r, and outer contour is centered close to hemispherical pit 2 edges at bionical bulge-structure 1 center, and bionical bulge-structure 1 height is H, H<5mm.As shown in Figure 2 and Figure 3; The present invention also copies bamboo fibre in bamboo, to obtain distribution mode, designed the arrangement mode of wear-resisting bionical bulge-structure 1: adjacent bionical bulge-structure 1 is arranged according to rhombus mode, in diamond array, compared with clip angle angle, be θ, 30 ° of < θ <60 °, adjacent bionical bulge-structure 1 spacing is L, and bionical bulge-structure 1 spacing L and height of projection H meet following relation:
10 < L H < 20
Diagonal longer in diamond array is consistent with glide direction, as shown in Figure 4; Above-mentioned wear-resisting bionical bulge-structure 1 has formed a kind of imitative bamboo wearing face of the present invention jointly with the aligning method of bionical bulge-structure 1.
As shown in Fig. 5, Fig. 6 and Fig. 7, plough 3 is the conventional native cultivating members that touch, and the sowing of being everlasting, applies during intertillage, and because plough 3 embedded depths are darker, the resistance being subject to during work is larger; During farming, contact soil hardness larger, component wear is comparatively serious.By the present invention's imitative bamboo Bionic wear-resisting surface applications to plough 3.Plough 3 is produced by casting method, and plough surface has wear-resisting bionical bulge-structure 1, r=1.5mm wherein, R=4mm, bionical bulge-structure height H=2mm; Bionical bulge-structure 1 is arranged according to aligning method shown in Fig. 4, in diamond array, compared with clip angle angle, is wherein 30 °, and adjacent bionical bulge-structure distance between centers is 20mm, and diagonal longer in diamond array is parallel with soil movement direction in cultivating procedure.

Claims (2)

1. an agricultural machinery touches native parts, it is characterized in that: its surface is imitative bamboo wearing face, the bionical bulge-structure of column that imitative bamboo wearing face is imitative bamboo cross-section fibers, there is hemispherical pit at bionical bulge-structure center, pit radius is r, 1mm≤r≤5mm, the outline of bionical bulge-structure meets following mathematic(al) representation:
(x-r) 2+ y 2=R 2wherein ( r + R ) 2 2 < x < ( r + R )
(x+r) 2+ y 2=R 2wherein - ( r + R ) < x < - ( r + R ) 2 2
X 2+ (y-r) 2=R 2wherein ( r + R ) 2 2 < y < ( r + R )
X 2+ (y+r) 2=R 2wherein - ( r + R ) < y < - ( r + R ) 2 2
X wherein and y are x axle and the y axle in two-dimensional coordinate system;
Wherein R is profile radius, r≤R≤5r, and outer contour is centered close to the hemispherical pit edge of the structure heart in bionical projection, and bionical projection height is H, H<5mm;
Described adjacent bionical bulge-structure is arranged according to rhombus mode.
2. a kind of agricultural machinery according to claim 1 touches native parts, it is characterized in that: in described diamond array, compared with clip angle angle, be θ, 30 ° of < θ <60 °, adjacent bionical bulge-structure spacing is L, and bionical bulge-structure spacing L and bionical bulge-structure height H meet following relation:
10 < L H < 20
Diagonal longer in diamond array is consistent with glide direction.
CN201210243453.8A 2012-07-13 2012-07-13 Bamboo-like wear-resistant surface Expired - Fee Related CN102714949B (en)

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CN102972128B (en) * 2012-12-14 2015-04-22 吉林大学 Bionic core moldboard type sowing boot

Citations (6)

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Publication number Priority date Publication date Assignee Title
AU2366584A (en) * 1983-01-20 1984-07-26 Farmland Pty Ltd Sweep implement
US5025736A (en) * 1988-10-03 1991-06-25 Anderson Kevin M Furrow opener
US6321667B1 (en) * 2000-06-09 2001-11-27 Kenneth E. Shoup Adjustable gauge wheel for a planter
CN1405240A (en) * 2001-11-14 2003-03-26 吉林大学 Bionic non-smooth antifriction composite coating and its manufacture method
CN101225919A (en) * 2008-01-30 2008-07-23 吉林大学 Rib type bionic abrasion-proof structure surface
CN202663766U (en) * 2012-07-13 2013-01-16 吉林大学 Bamboo-like wear-resistant surface

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2366584A (en) * 1983-01-20 1984-07-26 Farmland Pty Ltd Sweep implement
US5025736A (en) * 1988-10-03 1991-06-25 Anderson Kevin M Furrow opener
US6321667B1 (en) * 2000-06-09 2001-11-27 Kenneth E. Shoup Adjustable gauge wheel for a planter
CN1405240A (en) * 2001-11-14 2003-03-26 吉林大学 Bionic non-smooth antifriction composite coating and its manufacture method
CN101225919A (en) * 2008-01-30 2008-07-23 吉林大学 Rib type bionic abrasion-proof structure surface
CN202663766U (en) * 2012-07-13 2013-01-16 吉林大学 Bamboo-like wear-resistant surface

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Title
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"竹子-一种天然生复合材料的研究";李世红等;《材料研究学报》;19940430;第8卷(第2期);第188-192页 *
周本濂等."复合材料的仿生探索".《自然科学进展-国家重点实验室通讯》.1994,第4卷(第6期),713-725.
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