CN111869402A - Viscosity and resistance reducing potato bionic digging shovel - Google Patents
Viscosity and resistance reducing potato bionic digging shovel Download PDFInfo
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- CN111869402A CN111869402A CN202010886077.9A CN202010886077A CN111869402A CN 111869402 A CN111869402 A CN 111869402A CN 202010886077 A CN202010886077 A CN 202010886077A CN 111869402 A CN111869402 A CN 111869402A
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- soil
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- potato
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- 235000002595 Solanum tuberosum Nutrition 0.000 title claims abstract description 31
- 244000061456 Solanum tuberosum Species 0.000 title claims abstract description 31
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 26
- 239000002689 soil Substances 0.000 claims abstract description 65
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000005520 cutting process Methods 0.000 claims description 22
- 239000003292 glue Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 238000003306 harvesting Methods 0.000 abstract description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 8
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 8
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 8
- 239000011425 bamboo Substances 0.000 abstract description 8
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000006911 nucleation Effects 0.000 abstract description 3
- 238000010899 nucleation Methods 0.000 abstract description 3
- 244000082204 Phyllostachys viridis Species 0.000 abstract 1
- 230000002411 adverse Effects 0.000 abstract 1
- 241001330002 Bambuseae Species 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 210000004283 incisor Anatomy 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 235000012015 potatoes Nutrition 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 208000000013 Hammer Toe Syndrome Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005495 investment casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000001968 nicotinic acid Nutrition 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D13/00—Diggers, e.g. potato ploughs
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvesting Machines For Root Crops (AREA)
Abstract
The invention discloses a bionic potato digger blade capable of reducing viscosity and resistance, belongs to the technical field of agricultural machinery, and is designed based on a bamboo rat tooth structure and a soil accumulation nucleation phenomenon, wherein an earth entering section is of a pentagonal plane structure, the front surface of an earth lifting section is provided with a ridge structure designed based on the soil accumulation nucleation phenomenon, the longitudinal section of the earth lifting section is of a bionic curve structure, and an installation section is of a cuboid structure; the soil entering section, the soil lifting section and the mounting section are sequentially arranged from bottom to top and are smoothly connected, and the soil entering section, the soil lifting section and the mounting section are all symmetrical structures about an upper central line ae of the digging shovel; the invention can effectively reduce the adverse effects of large working resistance, serious soil adhesion and the like of the digging shovel in the potato harvesting process, thereby improving the working efficiency of the potato harvesting machine and prolonging the service life of the potato harvesting machine.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a potato bionic digger blade capable of reducing viscosity and resistance.
Background
Since the implementation of the potato staple-grain strategy, the production scale of potatoes is continuously enlarged, and higher requirements are put forward on potato harvesting machinery. The digger blade is a key part of the potato harvesting machine, and directly influences the harvesting effect of the potatoes and the working performance of the potato harvester. Relevant data show that the power consumption of the digging shovel can account for more than 20% of the whole power consumption of the potato harvester, the existing potato digging shovel is mainly various plane shovels, and although other digging shovels exist, the problems of large digging resistance, serious soil adhesion and the like still exist, so that the working performance of the potato harvester is influenced, and the production cost of potatoes is increased to a certain extent. Therefore, it is necessary to design a shovel having a high breaking capacity, a low excavation resistance, and a low soil adhesion.
By utilizing a bionics method to learn the special properties of organisms such as structures, materials and the like, the bionic method is applied to the research and design of the aspects of resistance reduction, viscosity reduction, wear resistance and the like of the soil contact part, and has achieved excellent effects. The bamboo rat has excellent soil drilling and hole punching capabilities, the claw toe and the four incisors of the bamboo rat are main soil excavating tools, and the lower teeth of the four incisors of the bamboo rat play a main cutting role in the viscous soil; in the process that the soil flows on the surface of the soil contact part, if the soil meets certain convex structures, soil cores with certain stable structures are formed in front of the protrusions, so that the flowing condition of other soil particles is influenced, and the adhesion condition of the soil on the surface of the soil contact part is also influenced to a certain extent. The structure and the phenomenon provide good ideas and basis for the innovative design of the potato digging shovel in the aspects of drag reduction, viscosity reduction and the like.
Disclosure of Invention
The invention aims to solve the problems of large working resistance, serious soil adhesion and the like of the existing potato digging shovel, and provides a bionic digging shovel based on the bamboo rat tooth and soil accumulation nucleation phenomenon so as to reduce resistance and consumption and improve the working efficiency of the digging shovel.
The soil-raising device comprises an earth-entering section A, a soil-raising section B and a mounting section C, wherein the earth-entering section A is of a pentagonal plane structure, the front surface of the soil-raising section B is provided with a rib structure D, the longitudinal section of the soil-raising section B is of a bionic curve structure, and the mounting section C is of a cuboid structure; the soil entering section A, the soil lifting section B and the mounting section C are sequentially arranged from bottom to top and are smoothly connected, and the soil entering section A, the soil lifting section B and the mounting section C are all symmetrical structures about a central line ae on the excavating shovel; the width W of the soil-entering section A, the soil-lifting section B and the installation section C is as follows: 140-180mm, the thickness H is 8-10 mm; under the working state, the included angle gamma between the installation section C and the horizontal plane is 18-23 degrees.
The section A that buries be the pentagon planar structure about central line ae symmetry, the length L1 of the lower extreme a point of section A that buries to the section A upper end that buries is: 80-90mm, the included angle alpha between the two bevel edges is 120 degrees, and the cutting edge angle beta of the cutting edge 1 on the two bevel edges is as follows: the thickness H1 of the front end of the cutting edge 1 of 25-30 degrees is as follows: 1.6-2 mm.
The front of the soil lifting section B is provided with a rib structure D which is arranged up and down, the cross section of the rib structure D is a right-angled triangle which is continuously arranged, and the length L3 of the short side 2 in each triangle is as follows: 3-4mm, the included angle lambda 1 between the short edge 2 and the bottom edge 3 is 90 degrees, and the included angle lambda 2 between the bevel edge 4 and the bottom edge 3 is as follows: 25-27 degrees, and the included angle lambda 2 faces downwards;
the longitudinal section of the soil lifting section B is of a bionic curve structure, and the equation of the bionic curve G is as follows:
y＝0.000006422·x4-0.001103·x3+0.05246·x2+0.7617·x
wherein: x is more than or equal to 0mm and less than or equal to 60 mm.
The mounting section C is of a rectangular plane structure, the length L2 of the mounting section C is 90-100mm, the mounting section C is provided with 4 counter bores d symmetrically arranged about the center line of ae on the digging shovel, the transverse distance L4 of the counter bores is 70-90mm, the longitudinal distance L5 of the counter bores is 45-55mm, and the distance L6 between the two rear counter bores and the tail end of the mounting section C is 20-25 mm.
In the invention, the 120-degree included angle of two cutting edges of the soil-entering section and the 25-30-degree edge angle of the cutting edge are optimized by analyzing the structures of two lower teeth in the incisors of the bamboo rat, thereby being beneficial to the penetration and cutting of soil by a digger shovel; the bionic curved surface structure of the soil lifting section has the effects of reducing resistance and consumption, and the rib structure on the curved surface destroys a continuous water film of soil on the shovel surface, so that the adhesion effect of the soil on the shovel surface is reduced; on the other hand, the sliding friction of soil particles on the shovel surface is converted into rolling friction to a greater extent, and certain soil and abrasive dust are stored, so that the wear resistance of the shovel surface is improved.
Drawings
FIG. 1 is an axonometric view of a potato bionic digger blade for reducing viscosity and resistance
FIG. 2 is a top view of a potato bionic digging shovel with viscosity and resistance reducing functions
FIG. 3 is a side view of a potato bionic digging shovel for reducing viscosity and resistance
FIG. 4 is a top view of the soil-entering section A
FIG. 5 is a cross-sectional view of the cutting edge angle β of the cutting edge of the cutting section indicated by f in FIG. 2
FIG. 6 is a top view of the soil elevating section B
FIG. 7 is a cross-sectional view of the rib structure D of the soil lifting section B indicated by g in FIG. 3
FIG. 8 is a top view of the mounting section C
Wherein: A. soil entering section B, soil lifting section C, mounting section D, ridge structure 1, cutting edge 2, short edge 3, bottom edge 4, bevel edge
Detailed Description
As shown in fig. 1 to 3, the invention is composed of an earth-entering section a, an earth-raising section B and an installation section C, wherein the earth-entering section a is a pentagonal planar structure, the front surface of the earth-raising section B is provided with a rib structure D, the longitudinal section of the earth-raising section B is of a bionic curve structure, and the installation section C is of a cuboid structure; the soil entering section A, the soil lifting section B and the mounting section C are sequentially arranged from bottom to top and are smoothly connected, and the soil entering section A, the soil lifting section B and the mounting section C are all symmetrical structures about a central line ae on the excavating shovel; the width W of the soil-entering section A, the soil-lifting section B and the installation section C is as follows: 140-180mm and the thickness H is 8-10 mm.
As shown in figure 3, in the working state, the included angle gamma between the mounting section C and the horizontal plane is 18-23 degrees, which can ensure that the resistance of the digging shovel in the working process is as low as possible, and the angle is slightly smaller than the general mounting angle of the potato digging shovel, so that the subsequent conveying and separating device of the potato harvesting machine can adopt a relatively small inclination angle, and further the working strength of the potato harvesting machine is reduced.
As shown in fig. 2, 4 and 5, the soil penetrating segment a has a pentagonal plane structure symmetrical about the central line ae, and the length L1 from the point a at the lower end of the soil penetrating segment a to the upper end of the soil penetrating segment a is as follows: 80-90mm, the included angle alpha between the two bevel edges is 120 degrees, and the cutting edge angle beta of the cutting edge 1 on the two bevel edges is as follows: the thickness H1 of the front end of the cutting edge 1 of 25-30 degrees is as follows: 1.6-2 mm. The 120-degree included angle of the two cutting edges and the 25-30-degree edge angle of the cutting edges are optimized by analyzing the structures of two lower teeth in the bamboo rat incisors, so that the resistance of the digging shovel in penetrating and cutting soil is reduced.
As shown in fig. 3, fig. 6 and fig. 7, the front surface of the soil lifting section B is provided with a vertical arrangement of rib structures D, the cross sections of the rib structures D are right-angled triangles arranged in series, wherein the length L3 of the short side 2 in each triangle is: 3-4mm, the included angle lambda 1 between the short edge 2 and the bottom edge 3 is 90 degrees, and the included angle lambda 2 between the bevel edge 4 and the bottom edge 3 is as follows: 25-27 degrees, and the included angle lambda 2 faces downwards;
the longitudinal section of the soil lifting section B is of a bionic curve structure, and the equation of the bionic curve G is as follows:
y＝0.000006422·x4-0.001103·x3+0.05246·x2+0.7617·x
wherein: x is more than or equal to 0mm and less than or equal to 60 mm.
The curve equation takes the lower teeth of four incisors of the bamboo rat as a bionic prototype and is obtained by a reverse engineering technology, and the fitting degree is R2＝0.9998。
The bionic curved surface structure of the soil lifting section B enables the front surface of the digging shovel to have continuously-changing curvature, has the effects of reducing resistance and consumption, and simultaneously enables the soil entering section A, the soil lifting section B and the mounting section C to integrally present a stepped structure, thereby being beneficial to soil crushing. The rib structure on the curved surface destroys a continuous water film of soil on the shovel surface, so that the adhesion effect of the soil on the shovel surface is reduced, and the excavation resistance is further reduced; on the other hand, the sliding friction of soil particles to the shovel surface is converted into rolling friction by the rib structure to a greater extent, and certain soil and abrasive dust are stored, so that the wear resistance of the shovel surface is improved, and the soil is favorably crushed. These effects also improve the potato-soil separation effect to a certain extent, thereby reducing the workload of the subsequent conveying and separating device of the potato harvesting machine.
As shown in fig. 1, 2 and 8, the mounting section C is of rectangular planar configuration having a length L2 of 90-100mm and is provided with 4 counter bores d arranged symmetrically about the midline of ae of the cutting blade, wherein the transverse spacing L4 of the counter bores is 70-90mm, the longitudinal spacing L5 is 45-55mm and the distance L6 between the rear two counter bores and the rear end of the mounting section C is 20-25 mm. The position parameters L4, L5, L6 are determined on the premise of ensuring the connection strength of the shovel and the machine according to actual conditions.
The viscosity-reducing and resistance-reducing potato digger shovel can be obtained by processing the external shape of a plate according to the size and then bending the plate according to the curve equation; or the whole curved surface shape can be processed by adopting equipment or methods such as precision casting, machining centers, linear cutting and the like, and other detailed structures can be processed by adopting proper procedures.
Claims (4)
1. The utility model provides a bionic digger blade of potato that subtracts to glue and fall hinders which characterized in that: the soil-raising device is composed of an earth-entering section (A), a soil-raising section (B) and a mounting section (C), wherein the earth-entering section (A) is of a pentagonal plane structure, the front surface of the soil-raising section (B) is provided with a rib structure (D), the longitudinal section of the soil-raising section (B) is of a bionic curve structure, and the mounting section (C) is of a cuboid structure; the soil entering section (A), the soil lifting section (B) and the mounting section (C) are sequentially arranged from bottom to top and are smoothly connected, and the soil entering section (A), the soil lifting section (B) and the mounting section (C) are all symmetrical structures about a central line ae on the excavating shovel; the width W of the soil entering section (A), the soil lifting section (B) and the installation section (C) is as follows: 140-180mm, the thickness H is 8-10 mm; in the working state, the included angle gamma between the installation section (C) and the horizontal plane is 18-23 degrees.
2. A potato bionic digger blade as claimed in claim 1, characterized in that: the soil-entering section (A) is of a pentagonal plane structure which is symmetrical about a central line ae, and the length L1 from the point a at the lower end of the soil-entering section (A) to the upper end of the soil-entering section (A) is as follows: 80-90mm, the included angle alpha between the two bevel edges is 120 degrees, and the cutting edge angle beta of the cutting edge (1) on the two bevel edges is as follows: the thickness H1 of the front end of the cutting edge (1) with the angle of 25-30 degrees is as follows: 1.6-2 mm.
3. A potato bionic digger blade as claimed in claim 1, characterized in that: the front of liter native section (B) be equipped with edge structure (D) of arranging from top to bottom, the cross section of edge structure (D) is for being the right angled triangle of continuous arrangement, wherein the length L3 of minor face (2) is among every triangle: 3-4mm, the included angle lambda 1 between the short side (2) and the bottom side (3) is 90 degrees, and the included angle lambda 2 between the bevel side (4) and the bottom side (3) is as follows: 25-27 degrees, and the included angle lambda 2 faces downwards;
the longitudinal section of the soil lifting section (B) is of a bionic curve structure, and the equation of the bionic curve G is as follows:
y＝0.000006422·x4-0.001103·x3+0.05246·x2+0.7617·x
wherein: x is more than or equal to 0mm and less than or equal to 60 mm.
4. A potato bionic digger blade as claimed in claim 1, characterized in that: the mounting section (C) is of a rectangular plane structure, the length L2 of the mounting section is 90-100mm, the mounting section is provided with 4 counter bores (d) which are symmetrically arranged relative to the central line of ae on the digging shovel, and the transverse distance L4 of the counter bores is as follows: 70-90mm, the longitudinal spacing L5 is: 45-55mm, and the distance L6 between the two rear counter bores and the tail end of the mounting section (C) is 20-25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010886077.9A CN111869402A (en) | 2020-08-28 | 2020-08-28 | Viscosity and resistance reducing potato bionic digging shovel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010886077.9A CN111869402A (en) | 2020-08-28 | 2020-08-28 | Viscosity and resistance reducing potato bionic digging shovel |
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| Publication Number | Publication Date |
|---|---|
| CN111869402A true CN111869402A (en) | 2020-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010886077.9A Pending CN111869402A (en) | 2020-08-28 | 2020-08-28 | Viscosity and resistance reducing potato bionic digging shovel |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827980A (en) * | 2007-10-18 | 2010-09-08 | 卡特彼勒公司 | Soil transport surface with anti-adhesion biomimetic features and machine using same |
| DE102011009628A1 (en) * | 2010-08-28 | 2014-02-06 | Hermann Thomas | Stalks of corn on cob in underground passage, has subterranean passage whose output is dug in ground by rooting |
| CN205385693U (en) * | 2016-01-08 | 2016-07-20 | 昆明理工大学 | Blade has bionical sawtooth geometry's subsoiler handle |
| CN106688339A (en) * | 2016-11-28 | 2017-05-24 | 吉林大学 | Stubble-cutting soil-loosening component with bionic structures |
| CN107258200A (en) * | 2017-03-22 | 2017-10-20 | 吉林大学 | A kind of bionical digger blade of potato |
| CN107318340A (en) * | 2017-08-14 | 2017-11-07 | 吉林大学 | A kind of bionical digger blade of drag-reducing abrasion-resisting |
| CN110012716A (en) * | 2019-04-19 | 2019-07-16 | 昆明理工大学 | A kind of bionical digger blade of knob tubers |
| CN110073737A (en) * | 2019-06-04 | 2019-08-02 | 吉林大学 | A kind of bionical deep soil loosing shovel with drag reduction bionic surface |
| CN111034390A (en) * | 2018-10-15 | 2020-04-21 | 西北农林科技大学 | Bionic subsoiler |
| CN212259800U (en) * | 2020-08-28 | 2021-01-01 | 吉林大学 | Viscosity and resistance reducing potato bionic digging shovel |
-
2020
- 2020-08-28 CN CN202010886077.9A patent/CN111869402A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101827980A (en) * | 2007-10-18 | 2010-09-08 | 卡特彼勒公司 | Soil transport surface with anti-adhesion biomimetic features and machine using same |
| DE102011009628A1 (en) * | 2010-08-28 | 2014-02-06 | Hermann Thomas | Stalks of corn on cob in underground passage, has subterranean passage whose output is dug in ground by rooting |
| CN205385693U (en) * | 2016-01-08 | 2016-07-20 | 昆明理工大学 | Blade has bionical sawtooth geometry's subsoiler handle |
| CN106688339A (en) * | 2016-11-28 | 2017-05-24 | 吉林大学 | Stubble-cutting soil-loosening component with bionic structures |
| CN107258200A (en) * | 2017-03-22 | 2017-10-20 | 吉林大学 | A kind of bionical digger blade of potato |
| CN107318340A (en) * | 2017-08-14 | 2017-11-07 | 吉林大学 | A kind of bionical digger blade of drag-reducing abrasion-resisting |
| CN111034390A (en) * | 2018-10-15 | 2020-04-21 | 西北农林科技大学 | Bionic subsoiler |
| CN110012716A (en) * | 2019-04-19 | 2019-07-16 | 昆明理工大学 | A kind of bionical digger blade of knob tubers |
| CN110073737A (en) * | 2019-06-04 | 2019-08-02 | 吉林大学 | A kind of bionical deep soil loosing shovel with drag reduction bionic surface |
| CN212259800U (en) * | 2020-08-28 | 2021-01-01 | 吉林大学 | Viscosity and resistance reducing potato bionic digging shovel |
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