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Bionic dual-wing universal weeding shovel

A weeding shovel and double-wing technology, applied in the field of bionic double-wing universal weeding shovel, can solve the problems of low soil entry capacity, large working resistance, and low soil entry capability of the weeding shovel, and reduce the probability of entangling grass and damaging seedlings and reducing frictional resistance. , The effect of reducing work resistance

Inactive Publication Date: 2015-09-30
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The working resistance of the weeding shovel comes from the shear resistance to the soil and the frictional resistance between it and the soil during the work of the components, resulting in low penetration into the soil. The traditional weeding shovel entangles the grass mainly because of the flaws in the design of the weeding shovel, which prevents weeds from Falling smoothly, the purpose of the present invention is to provide a bionic double wing that can solve the technical problems of traditional weeding shovels such as low penetration into the soil, high working resistance and grass entanglement, and has a Gaussian function curved shovel handle and a polynomial curved shovel blade. Universal weeding shovel

Method used

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  • Bionic dual-wing universal weeding shovel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] figure 2 with image 3 Front view and left view of the handle of the bionic dual-wing universal weeding shovel

[0038] Figure 4 with Figure 5 It is a bionic double-wing general-purpose weeding shovel handle. The cutting edge section of the working edge section is in the form of chamfering. Considering the strength of the structure, the cutting edge angle β 1 is 120°, and the angle α of the rest section 1 is 90°, Figure 10 This is the top view of the bionic dual-wing general-purpose weeding shovel. The arc D of the tip of the hoe is in the form of a polynomial curve. Compared with the traditional weeding shovel, the bionic dual-wing general-purpose weeding shovel can reduce resistance by about 9%.

Embodiment 2

[0040] Image 6 It is a schematic diagram of the cutting edge section of the working edge section of the bionic double-wing universal weeding shovel handle in the form of a parabola, and the parabolic equation is:

[0041] f(x)=x^2 / 2

[0042] Among them: -10mm

[0043] The curve is optimized to form the cutting edge section shape of the bionic shovel handle of the weeding shovel after optimization. Figure 10 It is a top view of the bionic dual-wing general-purpose weeding shovel. The arc D of the tip of the hoe is in the form of a polynomial curve. Compared with the traditional weeding shovel, this kind of bionic dual-wing general-purpose weeding shovel can reduce resistance by about 8.5%.

Embodiment 3

[0045] Figure 7 It is a schematic diagram of the cutting edge section of the bionic double-wing general-purpose weeding shovel handle in the form of a sinusoidal curve. The sinusoidal curve equation is: f(x)=6sinx

[0046] Where: 0

[0047] The curve is optimized, and after optimization, the cutting edge section shape of the working edge section of the bionic shovel handle of the weeding shovel is formed. Figure 10 This is the top view of the bionic two-wing general-purpose weeding shovel. The arc D of the tip of the hoe is in the form of a polynomial curve. Compared with the traditional weeding shovel, this kind of bionic two-wing general-purpose weeding shovel can reduce resistance by about 9%.

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Abstract

The invention discloses a bionic double-wing universal weeding shovel, and belongs to the technical field of agricultural machinery. The upper end and the lower end of a working cutting edge segment of a shovel handle are in fixed connection with a shovel handle connecting segment and a shovel mounting segment respectively, a shovel body is fixedly connected with the lower end of the shovel mounting segment, and the shovel body has a shovel point arc line D; a chamfering form or a parabola form or a sine curve form can be adopted for the section of the position, at the connection section of the working cutting edge segment and the shovel handle connecting segment, of a cutting edge; the directrix of the position, on the front surface of the working cutting edge segment, of the cutting edge has a Gaussian function curve A of a bionic structure, and the equation of the Gaussian function curve A is as follows: . According to the bionic double-wing universal weeding shovel, the property of weeding and the property of soil smashing are both achieved, the working resistance of the weeding shovel handle can be reduced by about 9%, the soil entering ability of the weeding shovel is improved, and the probability that the weeding shovel is twined by weeds or hurts seedlings is lowered.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a bionic double-wing general-purpose weeding shovel with a bionic structure for cultivating machinery. Background technique [0002] The introduction of conservation tillage technology has realized an innovation of my country's agricultural farming technology, and its achievements have made a great contribution to the development of my country's agriculture. In the early stage of conservation tillage development, chemical herbicides were used to manage farmland weeds. The emergence of drug resistance and conservation tillage have made it more difficult to control weeds in farmland. Therefore, it is imperative to replace or partially replace chemical weeding with mechanical weeding, and at the same time reduce the pollution of chemical agents to the natural environment. Cultivation and weeding has become one of the important links of intensive farming in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B39/18A01B39/22
Inventor 佟金王洪昌陈东辉张智泓张清珠马云海许顺孙霁宇周江陈玉香郭丽
Owner JILIN UNIV