CN111386758A - Bionic drag reduction subsoiler with low soil disturbance - Google Patents
Bionic drag reduction subsoiler with low soil disturbance Download PDFInfo
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- CN111386758A CN111386758A CN202010240130.8A CN202010240130A CN111386758A CN 111386758 A CN111386758 A CN 111386758A CN 202010240130 A CN202010240130 A CN 202010240130A CN 111386758 A CN111386758 A CN 111386758A
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- shovel
- convex edge
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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
- A01B13/00—Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation
- A01B13/08—Ploughs or like machines for special purposes ; Ditch diggers, trench ploughs, forestry ploughs, ploughs for land or marsh reclamation for working subsoil
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
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- Soil Working Implements (AREA)
Abstract
A bionic drag reduction subsoiler with low soil disturbance belongs to the technical field of agricultural machinery, and a shovel handle is fixedly connected to the upper end of a base body and is vertical to a horizontal plane; the shovel edge is fixedly connected in front of the base body, the shovel tip is fixedly connected at the front end of the base body, 40-44 convex edge columns of the left convex edge column group and the right convex edge column group are uniformly distributed and fixedly connected on the left side and the right side of the base body, the convex edge columns are parallel to the horizontal plane, the rear end faces of the left convex edge column and the right convex edge column are on the same vertical plane, and the cross section of each convex edge column is an isosceles trapezoid with. In the working process, gaps are formed when the rib structures are contacted with soil, the generated normal adhesion force is far larger than the tangential adhesion force, the adhesion of the interface is damaged, and therefore the resistance is reduced. The invention has the advantages of small operation resistance, low energy consumption, high working efficiency and small soil disturbance coefficient, and can improve the economic benefit of protective farming.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a bionic drag reduction subsoiler with low soil disturbance.
Background
With the continuous popularization and application of the soil cultivation technology in China, the land puts higher requirements on the cultivation quality and the energy consumption of the operation, and especially puts higher requirements on various soil working components. The subsoiler is the most main working component of the subsoiler, if on the premise of guaranteeing the farming quality, carry out reasonable design to the subsoiler to reduce the operating resistance or the machine energy consumption, this is favorable to promoting the subsoiler operation. The tillage resistance of a subsoiler comes primarily from two aspects: firstly, a shovel handle; second, the shovel tip. And the related research shows that the working resistance of the shovel shaft is larger. Therefore, by changing the structural form of the subsoiler, the resistance is reduced, the consumption is reduced, and the farming quality is improved.
Research shows that the zokor (myospax psilurus) front claw is a main excavating tool, and the front claw thereof can efficiently excavate soil like an excavator in the excavating process so as to enhance the soil excavating capacity. Research on the 3 rd jaw toe of the zokor forepaw discovers that the surface of the zokor forepaw has the characteristic of a logarithmic function curve along the longitudinal contour line, and the structural characteristic can greatly reduce the operation resistance. The surface form of the earthworms (Earth) when the heads shrink is a ridge structure, and related researches show that the structure can change the soil porosity of the plough layer to a large extent and has a small soil disturbance coefficient, so that the cultivated soil is beneficial to root growth. Therefore, the curve form and the rib structure are applied to the design of the subsoiler, and the effects of reducing tillage resistance and soil disturbance can be achieved.
Disclosure of Invention
The invention aims to design a bionic drag reduction subsoiler with low soil disturbance so as to achieve the effects of reducing tillage resistance and soil disturbance and reducing energy consumption.
The bionic protruding edge column type shovel comprises a shovel handle A, a shovel blade B, a bionic protruding edge column assembly C, a base body D and a shovel tip E, wherein the shovel handle A is a cube, and the length of the shovel handle H is equal to that of the shovel tip E1300-260-70mm, thick handle L3Is 30-40 mm; the shovel tip E is a chisel-shaped subsoiler shovel tip meeting the JB/T9788-1999 standard, and the horizontal projection height H of the mounting section of the shovel tip E380-90mm, wherein the shovel handle A is fixedly connected with the upper end of the base body D and is vertical to the horizontal plane, the shovel blade B is fixedly connected with the front surface of the base body D, the shovel tip E is fixedly connected with the front end of the base body D, the included angle α between the installation plane of the shovel tip E and the horizontal plane is 15- α -35 degrees, the working length of the soil entering is L1320-340 mm; 20-22 ribbed columns of a left ribbed column group I in the bionic ribbed column assembly C are uniformly distributed and fixedly connected on the left surface of a base body D at the rear part of the shovel blade B, and 20-22 ribbed columns are parallel to the horizontal plane; 20-22 ribbed columns of a right ribbed column group J in the bionic ribbed column assembly C are uniformly distributed and fixedly connected on the right side of a base body D at the rear part of the shovel blade B, and 20-22 ribbed columns are parallel to the horizontal plane; the rear end faces of the convex edge columns of the left convex edge column group I and the right convex edge column group J are on the same vertical plane.
The cutting edge angle β of the cutting edge B is 60-65 degrees, the cutting edge curve F of the cutting edge B is parallel to the inner alignment line G of the cutting edge B, and the mathematical expression of the inner alignment line G is as follows:
Y2＝1193.47442-199.70741*logx2+58.46437
wherein: x2 is: x2 is more than or equal to 5 and less than or equal to 450;
horizontal projection height H of shovel blade B2Is 320-340 mm.
Bionic ribbed column subassembly C constitute by left ribbed column group I and right ribbed column group J, and set up about subsoiler central line symmetry, left ribbed column group I and right ribbed column group J constitute by 20-22 ribbed columns, the isosceles trapezoid of ribbed column cross section for taking the fillet, isosceles trapezoid's height d is: 13.8-18.8mm, the ratio of the height d of the isosceles trapezoid to the distance h between adjacent convex prisms is as follows: d/h is 1:3, the width a of the bottom side of the isosceles trapezoid is as follows: 16.2-21.2mm, and the included angle theta between the inclined edge of the isosceles trapezoid and the bottom edge is as follows: 65-75 degrees, the radius r of the round angle in the isosceles trapezoid is as follows: 2-4mm, and the distance b between adjacent convex prisms is as follows: 3.6-8.6 mm.
The mathematical expression of the guideline H in the matrix D is as follows:
Y1＝1116.54536-186.63012*logx1+48.68405
wherein: x1 is: x1 is more than or equal to 15 and less than or equal to 450;
horizontal projection height H of substrate D4400 and 420 mm.
The working principle of the invention is as follows: the curve-shaped cutting edge of the bionic anti-drag subsoiler with low soil disturbance designed by the invention can change the soil cutting mode of a common circular arc-shaped cutting edge in the working process of the subsoiler, and the change of the mode can reduce the extrusion to the soil, thereby reducing the farming resistance, simultaneously reducing the friction resistance, greatly reducing the energy consumption and improving the working efficiency.
According to the bionic subsoiler, the rib structure is applied to the bionic subsoiler, the actual contact area of the rib structure and soil is much smaller, a gap is formed when the rib structure is in contact with the soil, the generated normal adhesion force is far larger than the tangential adhesion force, the adhesion of an interface is damaged, the resistance is reduced, a short soil failure line is generated in the horizontal direction of a rib column, and the soil disturbance is reduced.
Drawings
FIG. 1 is a schematic structural view of a bionic drag reduction subsoiler with low soil disturbance
FIG. 2 is a left side view of a bionic drag reduction subsoiler with low soil disturbance
FIG. 3 is a front view of a bionic drag-reduction subsoiler with low soil disturbance
FIG. 4 is a cross-sectional view of e-e of FIG. 3
FIG. 5 is a cross-sectional view of a biomimetic convex prism
Wherein: A. shovel handle B, shovel blade C, bionic lug column assembly D, base body E, shovel tip F, blade tip curve G, inner standard line H, outer standard line I, left lug column assembly J, right lug column assembly
Detailed Description
As shown in figures 1 and 2, the bionic protruding edge column type shovel comprises a shovel handle A, a shovel blade B, a bionic protruding edge column component C, a base body D and a shovel tip E, wherein the shovel handle A is a cube, and the length H of the shovel handle is long1Is 300-310mm, and the thickness of the film is 300-,wide shovel shaft L260-70mm, thick handle L3Is 30-40 mm; the shovel tip E is a chisel-shaped subsoiler shovel tip meeting the JB/T9788-1999 standard, and the horizontal projection height H of the mounting section of the shovel tip E380-90mm, wherein the shovel handle A is fixedly connected with the upper end of the base body D and is vertical to the horizontal plane, the shovel blade B is fixedly connected with the front surface of the base body D, the shovel tip E is fixedly connected with the front end of the base body D, the included angle α between the installation plane of the shovel tip E and the horizontal plane is 15- α -35 degrees, the working length of the soil entering is L1320-340 mm; 20-22 ribbed columns of a left ribbed column group I in the bionic ribbed column assembly C are uniformly distributed and fixedly connected on the left surface of a base body D at the rear part of the shovel blade B, and 20-22 ribbed columns are parallel to the horizontal plane; 20-22 ribbed columns of a right ribbed column group J in the bionic ribbed column assembly C are uniformly distributed and fixedly connected on the right side of a base body D at the rear part of the shovel blade B, and 20-22 ribbed columns are parallel to the horizontal plane; the rear end faces of the convex edge columns of the left convex edge column group I and the right convex edge column group J are on the same vertical plane.
As shown in fig. 1 to 4, the cutting edge angle β of the cutting edge B is 60-65 degrees, the cutting edge curve F of the cutting edge B is parallel to the inner alignment line G of the cutting edge B, and the mathematical expression of the inner alignment line G is as follows:
Y2＝1193.47442-199.70741*logx2+58.46437
wherein: x2 is: x2 is more than or equal to 5 and less than or equal to 450;
horizontal projection height H of shovel blade B2Is 320-340 mm.
As shown in fig. 1, 3 and 5, bionic lug column assembly C comprises left lug column group I and right lug column group J, and about subsoiler central line symmetry setting, left lug column group I and right lug column group J comprise 20-22 lug columns, the cross section of the lug column is an isosceles trapezoid with rounded corners, height d of the isosceles trapezoid is: 13.8-18.8mm, the ratio of the height d of the isosceles trapezoid to the distance h between adjacent convex prisms is as follows: d/h is 1:3, the width a of the bottom side of the isosceles trapezoid is as follows: 16.2-21.2mm, and the included angle theta between the inclined edge of the isosceles trapezoid and the bottom edge is as follows: 65-75 degrees, the radius r of the round angle in the isosceles trapezoid is as follows: 2-4mm, and the distance b between adjacent convex prisms is as follows: 3.6-8.6 mm.
As shown in fig. 1 and fig. 2, the mathematical expression of the guideline H in the substrate D is:
Y1＝1116.54536-186.63012*logx1+48.68405
wherein: x1 is: x1 is more than or equal to 15 and less than or equal to 450;
horizontal projection height H of substrate D4400 and 420 mm.
Claims (4)
1. A bionic drag reduction subsoiler with low soil disturbance comprises a shovel handle (A), a shovel blade (B), a bionic ribbed column assembly (C), a base body (D) and a shovel tip (E), wherein the shovel handle (A) is a cube and is long H1300-260-70mm, thick handle L3Is 30-40 mm; the shovel tip (E) is a chisel-shaped subsoiler shovel tip conforming to JB/T9788-1999 standard, and the horizontal projection height H of the mounting section of the shovel tip (E)3Is 80-90mm, and is characterized in that a shovel handle (A) is fixedly connected with the upper end of a basal body (D) and is vertical to the horizontal plane, a shovel blade (B) is fixedly connected with the front of the basal body (D), a shovel tip (E) is fixedly connected with the front end of the basal body (D), an included angle α between the installation plane of the shovel tip (E) and the horizontal plane is more than or equal to 15 degrees and less than or equal to α degrees and less than or equal to 35 degrees, and the working length of the soil entering is L1320-340 mm; 20-22 convex edge columns of a left convex edge column group (I) in the bionic convex edge column assembly (C) are uniformly distributed and fixedly connected on the left surface of a base body (D) at the rear part of the shovel blade (B), and the 20-22 convex edge columns are parallel to the horizontal plane; 20-22 convex edge columns of a right convex edge column group (J) in the bionic convex edge column assembly (C) are uniformly distributed and fixedly connected on the right surface of a base body (D) at the rear part of the shovel blade (B), and the 20-22 convex edge columns are parallel to the horizontal plane; the rear end faces of the convex edge columns of the left convex edge column group (I) and the right convex edge column group (J) are on the same vertical plane.
2. The bionic drag-reduction subsoiler with low soil disturbance as claimed in claim 1, characterized in that the cutting edge angle β of the cutting edge (B) is 60-65 degrees, the cutting edge curve F of the cutting edge (B) is parallel to the inner alignment line G of the cutting edge (B), and the mathematical expression of the inner alignment line G is:
Y2＝1193.47442-199.70741*log(x2+58.46437)
wherein: x2 is: x2 is more than or equal to 5 and less than or equal to 450;
the horizontal projection height H of the shovel edge (B)2Is 320-340 mm.
3. The low-soil-disturbance bionic drag-reduction subsoiler according to claim 1, wherein said bionic lug column assembly (C) is composed of a left lug column set (I) and a right lug column set (J), and is symmetrically arranged about a subsoiler central line, the left lug column set (I) and the right lug column set (J) are composed of 20-22 lug columns, the cross section of each lug column is an isosceles trapezoid with a fillet, and the height d of the isosceles trapezoid is: 13.8-18.8mm, the ratio of the height d of the isosceles trapezoid to the distance h between adjacent convex prisms is as follows: d/h is 1:3, the width a of the bottom side of the isosceles trapezoid is as follows: 16.2-21.2mm, and the included angle theta between the inclined edge of the isosceles trapezoid and the bottom edge is as follows: 65-75 degrees, the radius r of the round angle in the isosceles trapezoid is as follows: 2-4mm, and the distance b between adjacent convex prisms is as follows: 3.6-8.6 mm.
4. The bionic drag-reducing subsoiler with low soil disturbance according to claim 1, characterized in that the mathematical expression of the guideline H in said matrix (D) is:
Y1＝1116.54536-186.63012*log(x1+48.68405)
wherein: x1 is: x1 is more than or equal to 15 and less than or equal to 450;
horizontal projection height H of base body (D)4400 and 420 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010240130.8A CN111386758A (en) | 2020-03-31 | 2020-03-31 | Bionic drag reduction subsoiler with low soil disturbance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010240130.8A CN111386758A (en) | 2020-03-31 | 2020-03-31 | Bionic drag reduction subsoiler with low soil disturbance |
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| CN111386758A true CN111386758A (en) | 2020-07-10 |
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| CN202010240130.8A Pending CN111386758A (en) | 2020-03-31 | 2020-03-31 | Bionic drag reduction subsoiler with low soil disturbance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113508675A (en) * | 2021-07-19 | 2021-10-19 | 江苏大学 | White radish pulling type combined harvesting viscosity-reducing and resistance-reducing break shovel and harvester |
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| CN102487611A (en) * | 2011-12-16 | 2012-06-13 | 吉林大学 | Combined anti-drag subsoiling shovel |
| CN103430648A (en) * | 2013-08-24 | 2013-12-11 | 吉林大学 | Bionic double-wing universal weeding shovel |
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| RU173245U1 (en) * | 2017-01-10 | 2017-08-17 | Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" | Subsoiler |
| CN107996037A (en) * | 2018-01-18 | 2018-05-08 | 吉林大学 | A kind of bionical deep soil loosing shovel of the low soil disturbance of drag reduction |
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2020
- 2020-03-31 CN CN202010240130.8A patent/CN111386758A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102265727A (en) * | 2011-04-27 | 2011-12-07 | 吉林大学 | Exponential function curve type biomimetic resistance-reducing sub-soiling shovel handle |
| CN102487611A (en) * | 2011-12-16 | 2012-06-13 | 吉林大学 | Combined anti-drag subsoiling shovel |
| CN103430648A (en) * | 2013-08-24 | 2013-12-11 | 吉林大学 | Bionic double-wing universal weeding shovel |
| CN106233833A (en) * | 2016-07-13 | 2016-12-21 | 吉林建筑大学 | A kind of imitative Lumbricus ripple lubrication body surface anti-drag subsoiling shovel |
| RU173245U1 (en) * | 2017-01-10 | 2017-08-17 | Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" | Subsoiler |
| CN106993424A (en) * | 2017-05-10 | 2017-08-01 | 西华大学 | The bionical excavation shovel piece of potato class based on quadratic polynomial and logarithmic function |
| CN107996037A (en) * | 2018-01-18 | 2018-05-08 | 吉林大学 | A kind of bionical deep soil loosing shovel of the low soil disturbance of drag reduction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113508675A (en) * | 2021-07-19 | 2021-10-19 | 江苏大学 | White radish pulling type combined harvesting viscosity-reducing and resistance-reducing break shovel and harvester |
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Application publication date: 20200710 |
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