CN203633064U - Bionic resistance-reducing subsoiler handle based on power function curve - Google Patents

Bionic resistance-reducing subsoiler handle based on power function curve Download PDF

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Publication number
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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curve
power function
shovel
section
reducing
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陈军
李博
韩冰
夏蕊
慕军营
马阳
王峰霞
刘凡一
王荣
槭树腾
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Northwest A&F University
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Northwest A&F University
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Abstract

本实用新型涉及农业耕作机械上的典型耕作部件深松铲,特别是涉及一种基于幂函数曲线的仿生减阻深松铲柄,它由机架连接段(H1),触土曲线段(H2)和铲尖连接段(H3)组成。其特征在于:本实用新型是基于棕熊爪趾表面轮廓线,其形状具有幂函数的曲线形式,深松铲柄触土曲线段的内准线(F)和外准线(G)分别按如下幂函数方程式制得:y1=1917000x1 (-1.658)+8.743;y2=5299x2 (-0.5737)-114.3。铲尖连接段(H3)的铲尖安装平面与水平面之间的夹角α为20°~24°。该种基于幂函数曲线的仿生减阻深松铲柄可使深松铲的工作阻力减少9%,有利于节约能耗。

The utility model relates to a subsoiling shovel, a typical tillage part on agricultural farming machinery, in particular to a bionic drag-reducing subsoiling shovel handle based on a power function curve, which consists of a frame connection section (H 1 ), a soil contact curve section ( H 2 ) and shovel tip connecting section (H 3 ). It is characterized in that: the utility model is based on the surface contour line of the brown bear claw toe, and its shape has a curve form of a power function, and the inner alignment (F) and outer alignment (G) of the subsoiling shovel handle touching the soil curve section are respectively as follows The power function equation is obtained: y 1 =1917000x 1 (-1.658) +8.743; y 2 =5299x 2 (-0.5737) -114.3. The included angle α between the installation plane of the shovel tip of the shovel tip connection section (H 3 ) and the horizontal plane is 20°-24°. The bionic drag-reducing subsoiling shovel handle based on the power function curve can reduce the working resistance of the subsoiling shovel by 9%, which is beneficial to saving energy consumption.

Description

Bionic, drag-reducing subsoiling spade based on power function curve
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.基于幂函数曲线的仿生减阻深松铲柄,它由机架连接段(H1),触土曲线段(H2)和铲尖连接段(H3)组成,内准线(F)的前部有60°刃角的刃口,刃口前轮廓线(E)与内准线(F)平行,其特征在于铲尖安装平面与水平面之间的夹角α为20°~24°;触土曲线段的内准线(F)和外准线(G)采用幂函数曲线特征的仿生结构,所用的曲线方程为:1. The bionic drag-reducing subsoiling shovel handle based on the power function curve, which is composed of the frame connection section (H 1 ), the soil contact curve section (H 2 ) and the shovel tip connection section (H 3 ), and the inner alignment line (F ) has a cutting edge with a cutting edge angle of 60°, and the front contour line (E) of the cutting edge is parallel to the inner alignment line (F). °; the inner directrix (F) and outer directrix (G) of the soil-touching curve section adopt the bionic structure of the power function curve feature, and the curve equation used is: y1=1917000x1 (-1.658)+8.743;y 1 =1917000x 1 (-1.658) +8.743; y2=5299x2 (-0.5737)-114.3;y 2 =5299x 2 (-0.5737) -114.3; 式中,x1的取值范围是116≤x1≤500,x2的范围是26≤x2≤500,拟合函数图像的x轴以pixels为单位。In the formula, the value range of x 1 is 116≤x 1 ≤500, the range of x 2 is 26≤x 2 ≤500, and the x-axis of the fitting function image is in pixels.
CN201320893671.6U 2013-12-24 2013-12-24 Bionic resistance-reducing subsoiler handle based on power function curve Expired - Fee Related CN203633064U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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Granted publication date: 20140611

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