CN106688339B - Stubble-breaking soil-loosening component with bionic structure - Google Patents
Stubble-breaking soil-loosening component with bionic structure Download PDFInfo
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- CN106688339B CN106688339B CN201611059375.0A CN201611059375A CN106688339B CN 106688339 B CN106688339 B CN 106688339B CN 201611059375 A CN201611059375 A CN 201611059375A CN 106688339 B CN106688339 B CN 106688339B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a stubble breaking and soil loosening component with a bionic structure, which comprises a stubble breaking disc, stubble breaking teeth and stubble breaking notches are uniformly distributed on the circumference of the outer edge of the stubble breaking disc in an array manner, the stubble breaking teeth and the stubble breaking notches are respectively provided with a bamboo rat tooth profiling curve, the bionic soil loosening structures are distributed on symmetrical disc surfaces at two ends of the stubble breaking disc in a staggered manner, and the bionic soil loosening structures are provided with golden cicada shell curve bionic structures. According to the combined stubble-breaking soil-loosening component with the bionic curved notches and the bionic soil-loosening structure, the lower incisor configuration of the bamboo rats is applied to the outer edge of the stubble-breaking soil-loosening component, the shell profile of the golden cicada is applied to the bionic soil-loosening structure of the stubble-breaking soil-loosening component, the combined stubble-breaking soil-loosening component with the bionic curved notches and the bionic soil-loosening structure is designed, the stubble-breaking efficiency and the seeding quality of a no-tillage seeder are improved, the installation space of the whole machine is reduced on the basis of achieving the required functions, and the operation efficiency.
Description
Technical Field
The invention belongs to the field of agricultural machinery, and particularly relates to a stubble-breaking soil-loosening component with a bionic structure, which is suitable for a no-tillage seeder.
Background
The no-tillage planter is used for operating on no-tillage land covered by crop straws and stubble, and is a key implement in no-tillage planting mechanization operation. In the process of sowing in the operation of the no-tillage planter, the treatment of the stubble straws and the loosening and tidying of the seedbed are two very important links. The treatment of the stubble straws and the arrangement of the seed beds are beneficial to the operations of sowing, fertilizing and the like of the subsequent no-tillage planter, and the smoothness and the high efficiency of the operation are realized. If the stubble straw is not cleaned properly, the problems of blockage, clamping stagnation and the like of the machine tool can be caused, and the seeding quality is influenced. If the seedbed loosening effect is not good, the sown seeds do not have good soil for growth, resulting in a decrease in yield. Therefore, the research on the straw treatment and seedbed loosening device has important significance for improving the smoothness of the operation of the no-tillage planter and the labor productivity.
Disclosure of Invention
The invention aims to: the stubble breaking and soil loosening component with a bionic structure is provided by simulating the high-efficiency operation form of organisms in nature, has the functions of stubble breaking treatment and seedbed loosening, and realizes the smoothness and high efficiency of no-tillage seeding operation. The invention imitates the outline curve of the bamboo rat tooth to design stubble breaking teeth and stubble breaking gaps; a soil loosening structure on the disc surface of the stubble breaking soil loosening part is designed to simulate the appearance of a golden cicada.
The purpose of the invention is realized by the following steps:
a stubble breaking and soil loosening component with a bionic structure comprises a stubble breaking disc, stubble breaking teeth and stubble breaking notches are uniformly distributed on the circumference of the outer edge of the stubble breaking disc in an array mode, the stubble breaking teeth and the stubble breaking notches are provided with bamboo rat tooth profiling curves, the bionic soil loosening structures are distributed on symmetrical disc surfaces of two ends of the stubble breaking disc in a staggered mode, and the bionic soil loosening structures are provided with golden cicada shell curve bionic structures.
The thickness of the stubble breaking disc is 4 mm.
Furthermore, the tooth form of the stubble breaking tooth simulates a characteristic curve of the dental crown vestibule surface of the lower incisor of the bamboo rat, the projection is carried out on a surface perpendicular to the axis of the stubble breaking and soil loosening component, a characteristic curve AB curve of the simulated dental crown vestibule surface projected in an XOY plane of a Cartesian rectangular coordinate system is obtained, and the bionic curve section equation is as follows: -0.004937x2+0.1964x+240.6
Wherein: x is [169.1,193.6] in mm; and a Cartesian rectangular coordinate system OXY, wherein the origin of coordinates O is positioned at the center of the stubble breaking and soil loosening part, the X axis is the radial direction of the disc, and the Y axis is the radial direction of the disc and is perpendicular to the X axis.
Further, the curve of the stubble breaking gap simulates a characteristic curve of a tooth crown occlusal surface of lower incisors of a bamboo rat, the projection is performed on a surface perpendicular to the axis of the stubble breaking and loosening part, a characteristic curve BC curve of the simulated tooth crown occlusal surface projected in an XOY plane of a Cartesian rectangular coordinate system is obtained, and the bionic curve section equation is as follows:
y＝0.01374x2-4.701x+536
wherein: x is [112.4,169.1] in mm; and a Cartesian rectangular coordinate system OXY, wherein the origin of coordinates O is positioned at the center of the stubble breaking and soil loosening part, the X axis is the radial direction of the disc, and the Y axis is the radial direction of the disc and is perpendicular to the X axis.
Furthermore, the stubble breaking tooth is provided with a bionic cutting edge I, the bionic cutting edge I is a symmetrical cutting edge, a unilateral curve of the bionic cutting edge I simulates a tooth crown lingual surface characteristic curve EF of a lower incisor of a bamboo rat, in an X ' OY ' plane of a Cartesian rectangular coordinate system, a cutting edge line EF curve of a cross section of the bionic cutting edge I and a cutting edge line FM curve are symmetrical about an X ' axis, and a curve equation of the cutting edge line EF curve in X ' OY ' plane projection is as follows:
f(x)＝0.0010x3-0.0275x2+0.0150x+1.9514
wherein x is [0,12] in mm; the X 'OY' plane is perpendicular to the radial direction of the stubble breaking and soil loosening part.
Furthermore, the stubble breaking gap is provided with a bionic cutting edge II, and the cutting edge section of the bionic cutting edge II is the same as that of the bionic cutting edge I.
Furthermore, the highest point of each stubble breaking tooth is connected by a smooth curve to form a circle with the diameter of 428mm, and the length of a stubble breaking tooth crest line AB is 46 mm; the lowest points of the stubble-breaking notches are connected by a smooth curve to form a circle with the diameter of 406mm, and the length BC of the stubble-breaking notch sharp line is 78 mm.
Furthermore, the bionic soil loosening structure is semi-ellipsoidal and is distributed on the symmetrical disc surface of the stubble breaking disc in a staggered manner, the bionic soil loosening structure simulates the outline of a golden cicada shell, two characteristic outline curves of the golden cicada are taken, one characteristic outline curve GH is taken as a bus, the other characteristic outline curve JK is taken as a guideline, the bus is rotated by 180 degrees around the guideline, the obtained bionic curved surface is cut by a plane which is 8mm away from the peak of the obtained curved surface and perpendicular to the axis of the stubble breaking soil loosening part, and the external curved surface of the bionic soil loosening structure can be obtained by taking the partially cut curved surface on the plane.
The characteristic profile curve GH curve segment equation is as follows: -0.0091663x2+0.92632x-12.463
Wherein: x is [10,93] in mm;
the characteristic profile curve JK curve segment equation is as follows: -0.015577x2+1.0313x-5.9437
Wherein: x is [12,52.5] in mm.
Furthermore, the bionic soil loosening structure is in a semi-ellipsoid shape, the length of the bionic soil loosening structure is 60mm, the width of the bionic soil loosening structure is 40.5mm, the bionic soil loosening structure is perpendicular to the radial central plane of the stubble breaking soil loosening structure to be projected, the length of the long axis of the obtained ellipse is 60, the length of the short axis of the obtained ellipse is 40.5, and the unit is mm.
Research data show that the lower incisor of the bamboo rat has high cutting characteristic, and the shape of the soil animal has good desorption and drag reduction performance. According to the combined stubble-breaking soil-loosening component with the bionic curved notches and the bionic soil-loosening structure, the lower incisor configuration of the bamboo rats is applied to the outer edge of the stubble-breaking soil-loosening component, the shell profile of the golden cicada is applied to the bionic soil-loosening structure of the stubble-breaking soil-loosening component, the combined stubble-breaking soil-loosening component with the bionic curved notches and the bionic soil-loosening structure is designed, the stubble-breaking efficiency and the seeding quality of a no-tillage seeder are improved, the installation space of the whole machine is reduced on the basis of achieving the required functions, and the operation efficiency.
Drawings
FIG. 1 is a schematic structural view of a stubble breaking and soil loosening member with a bionic structure according to the present invention
FIG. 2 is an isometric view of the present invention
FIG. 3 is a schematic view showing the bionic soil loosening structure in staggered distribution on the symmetrical disc surface of the stubble breaking and soil loosening member
FIG. 4 is a sectional view of the stubble breaking and soil loosening element
FIG. 5 is a schematic view of the projection of the stubble breaking teeth on the XOY plane
FIG. 6 is a schematic view of the projection of the stubble breaking notch on the XOY plane
FIG. 7 is an AB curve equation of a characteristic curve of a dental crown vestibular surface of a lower incisor of a bamboo rat with a stubble-cutting tooth bionic
FIG. 8 is a BC curve equation diagram of a tooth crown occlusal surface characteristic curve of a lower incisor of a bamboo rat with a stubble-breaking notch bionic bamboo rat
FIG. 9 is a schematic view of the projection of the bionic cutting edge I on the X 'OY' surface
FIG. 10 is a simulated cutting edge I model bamboo rat lower incisor tooth crown lingual surface characteristic curve EF curve equation diagram
Fig. 11 is a configuration schematic diagram of a bionic soil loosening structure 3
FIG. 12 is a curve equation diagram of an imitative golden cicada appearance characteristic contour curve GH
FIG. 13 is a curve equation diagram of a golden cicada appearance characteristic contour curve JK
FIG. 14 is a schematic view of the lower incisor dental crown of a bamboo rat
FIG. 15 is a three-dimensional scan of the cicada shell
In the figure:
1. stubble breaking teeth 2, stubble breaking gap 3, bionic soil loosening structure 4, mounting hole I5, mounting hole II 6 and bionic blade I
7. A bionic cutting edge II 8, a vestibular surface 9, an occlusal surface 10 and a lingual surface;
AB is the front line of stubble breaking tooth 1; BC is the front line BC of the stubble breaking gap 2; P-P is the cross section perpendicular to the stubble-breaking disc
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
Please refer to fig. 1, 2, and 3, the present embodiment is a stubble breaking and soil loosening member with a bionic structure, the whole shape of which is a disc shape, the stubble breaking and soil loosening member includes a stubble breaking disc, stubble breaking teeth 1 and stubble breaking gaps 2 with bamboo rat tooth profile curves are uniformly distributed in an array manner on the circumference of the outer edge of the stubble breaking disc, bionic soil loosening structures 3 with golden cicada shell curve bionic structures are distributed in a staggered manner on symmetrical disc surfaces at two ends of the stubble breaking disc, a mounting hole i 4 is arranged in the center of the disc surface of the stubble breaking disc, and mounting holes ii 5 are uniformly distributed on the periphery of the mounting hole i 4.
As shown in fig. 1 and fig. 2, stubble breaking teeth 1 and stubble breaking notches 2 are uniformly distributed on the periphery of the outer edge of the stubble breaking disc, and the number of the stubble breaking teeth 1 is the same as that of the stubble breaking notches 2, and the number of the stubble breaking teeth 1 is 11. The center of the disc is provided with a mounting hole I4, and 6 mounting holes II 5 are uniformly distributed around the disc.
As shown in fig. 1, 2 and 3, bionic soil loosening structures 3 are uniformly distributed on the front and back surfaces of the stubble breaking and soil loosening component in a staggered manner, and the number of single surfaces of the bionic soil loosening structures is 11.
As shown in figure 4, two sides of each stubble breaking tooth 1 are bionic cutting edges I6, and two sides of each stubble breaking gap 2 are bionic cutting edges II 7.
As shown in fig. 5 and 7, the stubble breaking teeth 1 are evenly distributed on the edge of the stubble breaking disc, and the highest point of each stubble breaking tooth 1 is connected by a smooth curve to form a stubble breaking disc with a diameter of 4Circle of 28 mm. The stubble breaking tooth 1 is provided with a bionic cutting edge I6, and the length AB of the front line of the stubble breaking tooth 1 is 46 mm. The tooth form of the stubble-breaking tooth 1 simulates the characteristic curve of the dental crown vestibular surface of the lower incisor of a bamboo rat, wherein the stubble-breaking soil-loosening component is projected on the surface perpendicular to the axis of the tooth form, the AB curve of the characteristic curve of the dental crown vestibular surface is projected in the XOY plane of a Cartesian rectangular coordinate system, and the bionic curve segment equation is as follows: -0.004937x2+0.1964x+240.6
Wherein: x is [169.1,193.6] in mm; and a Cartesian rectangular coordinate system OXY, wherein the origin of coordinates O is positioned at the center of the stubble breaking and soil loosening part, the X axis is the radial direction of the discs and passes through the circle center of the mounting hole I4, and the Y axis is the radial direction of the discs and is perpendicular to the X axis.
As shown in fig. 6 and 8, the stubble cutting gaps 2 are uniformly distributed on the edge of the stubble cutting disc, and the lowest points of the stubble cutting gaps 2 are connected by smooth curves to form a circle with the diameter of 406 mm. The stubble breaking gap 2 is provided with a bionic cutting edge II 7, and the length BC of the front line BC of the stubble breaking gap 2 is 78 mm. The bionic bamboo rat lower incisor tooth crown occlusal surface characteristic curve of the stubble-breaking gap 2 curve is characterized in that a stubble-breaking soil-loosening part is projected on a surface perpendicular to the axis of the bamboo rat lower incisor tooth, a projection bionic crown occlusal surface characteristic curve BC curve is projected in an XOY plane of a Cartesian rectangular coordinate system, and the bionic curve segment equation is as follows:
y＝0.01374x2-4.701x+536
wherein: x is [112.4,169.1] in mm; and a Cartesian rectangular coordinate system OXY, wherein the origin of coordinates O is positioned at the center of the stubble breaking and soil loosening part, the X axis is the radial direction of the discs and passes through the circle center of the mounting hole I4, and the Y axis is the radial direction of the discs and is perpendicular to the X axis.
As shown in fig. 4, 5, 9 and 10, the bionic cutting edge I6 is a symmetrical cutting edge. The unilateral curve of the bionic cutting edge I6 imitates a characteristic curve EF of a dental crown lingual surface of a lower incisor of a bamboo rat, a stubble breaking tooth 1 is cut by a section P-P (the section P-P is perpendicular to a stubble breaking disc), a cross section of the bionic cutting edge I6 is obtained (wherein E and M are intersection points of an edge line and the section, and F is an intersection point of a front line and the section P-P), the cross section is placed in an X ' OY ' plane of a Cartesian rectangular coordinate system, the EF curve of the edge line and an FM curve are symmetrical about an X ' axis, the EF curve imitates the characteristic curve of the lingual surface of the lower incisor of the bamboo rat, and the curve equation is as follows:
f(x)＝0.0010x3-0.0275x2+0.0150x+1.9514
wherein x is [0,12] and is in mm.
As shown in figure 4, the cutting edge section of the bionic cutting edge II 7 is the same as that of the bionic cutting edge I6.
As shown in fig. 1, 3 and 5, the bionic soil loosening structure 3 is semi-ellipsoidal, is distributed in a staggered manner on the symmetrical disc surface of the stubble cutting disc, has a length of 60mm and a width of 40.5mm, and is positioned in the radial direction of the disc surface of the stubble cutting disc, and one end of the bionic soil loosening structure close to the center of the disc surface of the stubble cutting disc is uniformly distributed on a circle with a radius of 110mm and taking the center of the disc surface of the stubble cutting disc as the center of the circle.
As shown in fig. 1, 11, 12 and 13, the bionic soil loosening structure 3 simulates the contour of a golden cicada shell, two characteristic contour curves of the golden cicada are taken, wherein the characteristic contour curve GH is taken as a bus, the other characteristic contour curve JK is taken as a guideline, the bus is rotated by 180 degrees around the guideline, the bionic curved surface is cut by a plane which is 8mm away from the vertex of the obtained curved surface and is perpendicular to the axis of the stubble breaking soil loosening part, and the external curved surface of the bionic soil loosening structure 3 can be obtained by taking the curved surface cut by the upper part of the plane. And projecting the bionic soil loosening structure 3 perpendicular to the radial central plane of the stubble breaking soil loosening structure, wherein the long axis length of the obtained ellipse is 60, the short axis length is 40.5, and the unit is mm.
The characteristic profile curve GH curve segment equation is as follows: -0.0091663x2+0.92632x-12.463
Wherein: x is [10,93] in mm;
the characteristic profile curve JK curve segment equation is as follows: -0.015577x2+1.0313x-5.9437
Wherein: x is [12,52.5] in mm;
as shown in figure 1, the diameter of the mounting hole I4 is 55mm, and the mounting hole is positioned in the center of the disk surface of the stubble breaking and soil loosening component. 6 mounting holes II 5 are uniformly distributed on the circumference 40mm away from the center of the disk surface of the stubble-breaking soil-loosening component, and the diameter of the mounting holes II 5 is 12 mm.
As shown in figure 3, the thickness of the stubble-cutting disc is 4 mm.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (4)
1. A stubble breaking and soil loosening component with a bionic structure is characterized by comprising a stubble breaking disc, stubble breaking teeth (1) and stubble breaking notches (2) are uniformly distributed on the periphery of the outer edge of the stubble breaking disc in an array mode, both the stubble breaking teeth (1) and the stubble breaking notches (2) are provided with bamboo rat tooth profile curves, bionic soil loosening structures (3) are distributed on symmetrical disc surfaces at two ends of the stubble breaking disc in a staggered mode, and the bionic soil loosening structures are provided with golden cicada shell curve bionic structures;
the tooth form of the stubble breaking tooth (1) simulates a tooth crown vestibular surface characteristic curve of a lower incisor of a bamboo rat, the projection is carried out on a plane perpendicular to the axis of the stubble breaking and soil loosening component, a tooth crown vestibular surface characteristic curve AB curve projected in an XOY plane of a Cartesian rectangular coordinate system is obtained, and the bionic curve section equation is as follows: -0.004937x2+0.1964x+240.6
Wherein: x is [169.1,193.6] in mm; a Cartesian rectangular coordinate system OXY, wherein the origin of coordinates O is positioned at the center of the stubble breaking and soil loosening part, the X axis is the radial direction of the disc, and the Y axis is the radial direction of the disc and is vertical to the X axis;
the curve of the stubble breaking notch (2) simulates a tooth crown occlusal surface characteristic curve of lower incisors of a bamboo rat, the projection is carried out on the surface perpendicular to the axis of the stubble breaking and soil loosening component, a tooth crown occlusal surface characteristic curve BC curve projected in an XOY plane of a Cartesian rectangular coordinate system is obtained, and the bionic curve section equation is as follows:
y＝0.01374x2-4.701x+536
wherein: x is [112.4,169.1] in mm; a Cartesian rectangular coordinate system OXY, wherein the origin of coordinates O is positioned at the center of the stubble breaking and soil loosening part, the X axis is the radial direction of the disc, and the Y axis is the radial direction of the disc and is vertical to the X axis;
the bionic soil loosening structure (3) is in a semi-ellipsoid shape and is distributed on the symmetrical disc surface of the stubble breaking disc in a staggered mode, the bionic soil loosening structure (3) simulates the outline of a golden cicada shell, two characteristic outline curves of the golden cicada are taken, one characteristic outline curve GH is taken as a bus, the other characteristic outline curve JK is taken as a guideline, the bus is rotated by 180 degrees around the guideline, the obtained bionic curved surface is cut by a plane which is 8mm away from the peak of the obtained curved surface and is perpendicular to the axis of the stubble breaking soil loosening part, and the cut curved surface on the upper portion of the plane is taken to obtain the external curved surface of the bionic soil loosening structure (3);
the characteristic profile curve GH curve segment equation is as follows: -0.0091663x2+0.92632x-12.463
Wherein: x is [10,93] in mm;
the characteristic profile curve JK curve segment equation is as follows: -0.015577x2+1.0313x-5.9437
Wherein: x is [12,52.5] in mm.
2. The stubble breaking ripping part with bionic structure as claimed in claim 1, characterized in that the highest point of each stubble breaking tooth (1) is connected by smooth curve to form a circle with a diameter of 428mm, the length AB of the front line of the stubble breaking tooth (1) is 46 mm; the lowest points of the stubble-breaking notches (2) are connected by smooth curves to form a circle with the diameter of 406mm, and the length of the front line BC of the stubble-breaking notch (2) is 78 mm.
3. The stubble breaking and soil loosening component with the bionic structure as claimed in claim 1, wherein the bionic soil loosening structure (3) is semi-ellipsoidal, 60mm in length and 40.5mm in width, and the projection of the bionic soil loosening structure (3) perpendicular to the radial central plane of the stubble breaking and soil loosening component is implemented, so that the major axis of the ellipse is 60, and the minor axis is 40.5 mm.
4. A stubble breaking and soil loosening member as claimed in claim 1, wherein the thickness of the stubble breaking disc is 4 mm.
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| CN201611059375.0A CN106688339B (en) | 2016-11-28 | 2016-11-28 | Stubble-breaking soil-loosening component with bionic structure |
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| CN201611059375.0A CN106688339B (en) | 2016-11-28 | 2016-11-28 | Stubble-breaking soil-loosening component with bionic structure |
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| CN106688339B true CN106688339B (en) | 2019-12-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107960162A (en) * | 2017-12-12 | 2018-04-27 | 东北农业大学 | A kind of breaking hack knife |
| CN111869402A (en) * | 2020-08-28 | 2020-11-03 | 吉林大学 | Viscosity and resistance reducing potato bionic digging shovel |
| CN115067026B (en) * | 2022-05-03 | 2024-02-02 | 吉林大学 | Micro-power bionic stubble breaking mechanism, stubble breaking device, no-tillage planter and stubble breaking method |
| CN115643891A (en) * | 2022-10-11 | 2023-01-31 | 海南大学 | Vertical three-shaft distribution beveling two-stage crushing returning machine |
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| CN101548592A (en) * | 2009-05-04 | 2009-10-07 | 吉林大学 | Cultivation rotation working part with bionic geometric structure |
| CN102918945A (en) * | 2012-11-13 | 2013-02-13 | 吉林大学 | Variable camber tooth type stubble-cutting scarifier |
| AU2015201532A1 (en) * | 2014-05-15 | 2015-12-03 | K-Line Industries Pty Ltd | Single pass raised bed preparation system |
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