CN203633064U - Bionic resistance-reducing subsoiler handle based on power function curve - Google Patents
Bionic resistance-reducing subsoiler handle based on power function curve Download PDFInfo
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- CN203633064U CN203633064U CN201320893671.6U CN201320893671U CN203633064U CN 203633064 U CN203633064 U CN 203633064U CN 201320893671 U CN201320893671 U CN 201320893671U CN 203633064 U CN203633064 U CN 203633064U
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- subsoiler
- power function
- reducing
- directrix
- curve
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Abstract
The utility model relates to a classic cultivation part of agricultural cultivation machines, namely a subsoiler, in particular to a bionic resistance-reducing subsoiler handle based on a power function curve. The bionic resistance-reducing subsoiler handle comprises a machine frame connection section (H1), a soil contact curve section (H2) and a subsoiler tip connection section (H3), and is characterized in that the subsoiler handle is based on he outline of the surface of a brown bear claw toe, the shape of the subsoiler handle is of a mode of the power function curve, the inner directrix (F) of the soil contact curve section of the subsoiler handle is obtained through a power function equation of y1=1917000x1(-1.658)+8.743, and the outer directrix (G) of the soil contact curve section of the subsoiler handle is obtained through a power function equation of y2=5299x2(-0.5737)-114.3. The included angle alpha between the subsoiler tip installation surface of the subsoiler tip connection section (H3) and the horizontal plane ranges from 20 degrees to 24 degrees. By means of the bionic resistance-reducing subsoiler handle based on the power function curve, work resistance of a subsoiler can be reduced by 9 percent, and energy conservation is facilitated.
Description
Technical field
The utility model relates to a kind of bionic, drag-reducing subsoiling spade based on power function curve with drag reduction effect on agricultural tillage machinery.
Background technology
Along with constantly applying of subsoiling technology, cultivating quality and energy consumption to Subsoiler are had higher requirement.Deep soil loosing shovel is the topmost workpiece of subsoiler, if can guarantee under the prerequisite of operation quality, thereby reduces the working resistance of Subsoiler by the structure of appropriate design deep soil loosing shovel, and this has great significance for further popularization subsoiling technology.
The tillage resistance of deep soil loosing shovel comes from spade and spear, and the version of spade has tremendous influence to the resistance of deep soil loosing shovel, touches native curve by changing subsoiling spade, under the prerequisite that guarantees operation quality, reduces tillage resistance.
Research is found, brown bear is good at excavated cavity, this has inseparable relation with the shape of its fore paw toe, brown bear is to complete by the movement of pawl toe in the process of excavated cavity in addition, the cultivating procedure of this and deep soil loosing shovel is quite similar, therefore the design that, its pawl toe curve is applied to subsoiling spade has stronger theoretical foundation.In to the research process of brown bear fore paw toe, find that its outline line has the feature of power function curve, this structure makes brown bear can greatly reduce resistance in the process of excavated cavity, therefore, this curve form is applied in the design of subsoiling spade, can reaches the effect that reduces tillage resistance.
Summary of the invention
The purpose of this utility model is a kind of bionic, drag-reducing subsoiling spade based on power function curve of design, to reach the effect that reduces tillage resistance saving energy consumption.
As shown in Figure 1, it is by frame linkage section H for the bionic, drag-reducing subsoiling spade of the utility model based on power function curve
1, touch native curved section H
2with spear linkage section H
3composition, there is the cutting edge of 60 ° of basils interior directrix front portion, and cutting edge front-wheel profile E is parallel with directrix F in spade active section, spear linkage section H
3spear mounting plane and horizontal plane between angle α be 20 °～24 °.In the time of farming, form when tactile native curved section can imitate brown bear excavation.Touching the interior directrix F of native curved section and outer directrix G makes according to following power function equation respectively:
y
1=1917000x
1 (-1.658)+8.743；
y
2=5299x
2 (-0.5737)-114.3；
In formula, x
1span be 116≤x
1≤ 500, x
2scope be 26≤x
2≤ 500, the x axle of fitting function image is take pixels as unit.
The beneficial effects of the utility model are: the bionic, drag-reducing subsoiling spade based on power function curve can make its cutting edge front soil move obliquely in cultivating procedure, thereby can reduce like this, the extruding of soil is reduced to tillage resistance, this curve form can reduce friction simultaneously, has effectively reduced energy consumption.Research shows, uses this bionic, drag-reducing subsoiling spade based on power function curve can make the working resistance of subsoiling facility reduce 9%.
Accompanying drawing explanation
Fig. 1 is the bionic, drag-reducing deep soil loosing shovel handle structure schematic diagram based on power function curve;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is that A-A shown in Fig. 2 is to cross section view;
Fig. 4 is the fore paw middle toe upper surface contour curve of brown bear;
Fig. 5 is the fore paw middle toe lower surface contour curve of brown bear.
Embodiment
Further illustrate particular content of the present utility model and embodiment thereof below in conjunction with example shown in accompanying drawing.
Referring to figs. 1 through Fig. 3, the bionic, drag-reducing subsoiling spade based on power function curve is by by frame linkage section H
1, touch native curved section H
2with spear linkage section H
3composition, there is the cutting edge of 60 ° of basils interior directrix front portion, and cutting edge front-wheel profile E is parallel with directrix F in spade active section, spear linkage section H
3spear mounting plane and horizontal plane between angle α be 20 °～24 °.According to deep soil loosing shovel operation General Requirements, H
1+ H
2+ H
3=600mm, H
1for 280mm (according to GB JB/T9788-1999 standard), I is 55mm, and J is 25mm (according to GB JB/T9788-1999 standard).Touch native curved section H
2for the biomimetic features that adopts power function curve to obtain, formed by E, F, tri-sections of curves of G, curve is taken from brown bear pawl toe contour curve (take brown bear pawl toe photo, utilize Matlab software to carry out described point to pawl toe profile, obtain the curvilinear equation of its power function form through curve).The interior directrix F and the outer directrix G that touch native curved section are following two curves that equation makes that obtain according to matching respectively:
y
1=1917000x
1 (-1.658)+8.743；
y
2=5299x
2 (-0.5737)-114.3；
In formula, x
1span be 116≤x
1≤ 500, x
2scope be 26≤x
2≤ 500, the x axle of fitting function image is take pixels as unit.According to the designing requirement of subsoiling spade, the curve obtaining is carried out to scaled down, curved section E, F after optimal design, G are as shown in Figure 1.Span 0.7≤L/D≤0.85 of the ratio L/D of spade front-extending quantity L and tilling depth D.
Size and structure take the medium-sized deep soil loosing shovel of the machinery industry standard JB/T9788-1999 of the People's Republic of China (PRC) " deep soil loosing shovel and subsoiling spade " defined design and produce as basis.
Tilling depth requires D=320mm, gets x
1scope be 116≤x
1≤ 500, x
2scope be 26≤x
2≤ 500, by the curvilinear coordinate value x in Fig. 2 and Fig. 3
1, y
1, x
2, y
2entirety is dwindled, and proportionality coefficient is 0.47, obtains L=250mm, L/D=0.78.
Interior directrix and outer directrix front end spear linkage section H
3middle N is 10mm, and P is 25mm, and other sizes are according to designing of stipulating in GB.
Claims (1)
1. the bionic, drag-reducing subsoiling spade based on power function curve, it is by frame linkage section (H
1), touch native curved section (H
2) and spear linkage section (H
3) composition, there is the cutting edge of 60 ° of basils the front portion of interior directrix (F), and cutting edge front-wheel profile (E) is parallel with interior directrix (F), it is characterized in that the angle α between spear mounting plane and horizontal plane is 20 °～24 °; The biomimetic features that touches interior directrix (F) and outer directrix (G) the employing power function curve feature of native curved section, curvilinear equation used is:
y
1=1917000x
1 (-1.658)+8.743；
y
2=5299x
2 (-0.5737)-114.3；
In formula, x
1span be 116≤x
1≤ 500, x
2scope be 26≤x
2≤ 500, the x axle of fitting function image is take pixels as unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893671.6U CN203633064U (en) | 2013-12-24 | 2013-12-24 | Bionic resistance-reducing subsoiler handle based on power function curve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320893671.6U CN203633064U (en) | 2013-12-24 | 2013-12-24 | Bionic resistance-reducing subsoiler handle based on power function curve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203633064U true CN203633064U (en) | 2014-06-11 |
Family
ID=50864371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320893671.6U Expired - Fee Related CN203633064U (en) | 2013-12-24 | 2013-12-24 | Bionic resistance-reducing subsoiler handle based on power function curve |
Country Status (1)
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|---|---|
| CN (1) | CN203633064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797906A (en) * | 2013-12-24 | 2014-05-21 | 西北农林科技大学 | Bionic anti-drag subsoiler handle based on power function curve |
| CN107439061A (en) * | 2017-08-25 | 2017-12-08 | 东北农业大学 | Matched curve moldeed depth pine spade |
-
2013
- 2013-12-24 CN CN201320893671.6U patent/CN203633064U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103797906A (en) * | 2013-12-24 | 2014-05-21 | 西北农林科技大学 | Bionic anti-drag subsoiler handle based on power function curve |
| CN103797906B (en) * | 2013-12-24 | 2015-09-30 | 西北农林科技大学 | Based on the bionic, drag-reducing subsoiling spade of power function curve |
| CN107439061A (en) * | 2017-08-25 | 2017-12-08 | 东北农业大学 | Matched curve moldeed depth pine spade |
| CN107439061B (en) * | 2017-08-25 | 2022-03-22 | 东北农业大学 | Fitting curve type subsoiler handle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |