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A bionic curved surface structure and a construction method of an agricultural machine tool soil-touching part based on reverse engineering technology

A curved surface structure and reverse engineering technology, applied in computer-aided design, design optimization/simulation, special data processing applications, etc., can solve the problems of large surface soil damage, high energy consumption, and large working resistance, and achieve soil friction Small resistance, excellent geometric structure, reduce the effect of slow working speed

Pending Publication Date: 2019-02-05
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: the present invention provides a bionic curved surface structure of soil-contacting parts of agricultural machinery based on reverse engineering technology and its construction method, which is used to overcome the large working resistance of the curved soil-contacting parts of traditional agricultural machinery and the difficulty of energy consumption in breaking the soil High, great damage to the surface soil

Method used

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  • A bionic curved surface structure and a construction method of an agricultural machine tool soil-touching part based on reverse engineering technology
  • A bionic curved surface structure and a construction method of an agricultural machine tool soil-touching part based on reverse engineering technology
  • A bionic curved surface structure and a construction method of an agricultural machine tool soil-touching part based on reverse engineering technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1: as Figure 1-3 As shown, a bionic curved surface structure of soil-contacting parts of agricultural machinery based on reverse engineering technology, the bionic curved surface structure uses five curve fitting equations to fit a curved surface, one end of the curved surface is taken as a cross section, and the other end of the curved surface is smooth connected; the five curve fitting equations are:

[0050] the y 1 =0.0003943x 1 4 +0.05131x 1 3 +2.327x 1 2 +45.93x 1 +364.9;

[0051] the y 2 =0.0008876x 2 4 +0.09806x 2 3 +3.918x 2 2 +68.458x 2 +471.1;

[0052] the y 3 =0.0001187x 3 4 +0.019x 3 3 +0.9285x 3 2 +19.14x 3 +171.5;

[0053] the y 4 =0.0003826x 4 4 +0.04088x 4 3 +0.1562x 4 2 +26.38x 4 +195.6;

[0054] the y 5 =0.009708x 5 4 +0.4157x 5 3 +8.885x 5 2 +495.55x 5 +446.1.

[0055] Further, the five curve fitting equations satisfy the following conditions:

[0056] x 1 The value range is -32~-16mm (that is...

Embodiment 2

[0084] Embodiment 2: as Figure 1-3 As shown, a bionic curved surface structure and construction method of soil-contacting parts of agricultural implements based on reverse engineering technology are basically the same as in Example 1, the difference is that:

[0085] Further, the range of the radius R of the arc is 60 mm, and the corresponding central angle of the arc is 90°.

[0086] Further, the widths between the curves fitted by the five curve fitting equations are the same, and the width range is 8 mm.

Embodiment 3

[0087] Embodiment 3: as Figure 1-3 As shown, a bionic curved surface structure and construction method of soil-contacting parts of agricultural implements based on reverse engineering technology are basically the same as in Example 1, the difference is that:

[0088] Further, the range of the radius R of the arc is 100mm, and the corresponding central angle of the arc is 120°.

[0089] Further, the widths between the curves fitted by the five curve fitting equations are the same, and the width range is 12 mm.

[0090] The above-mentioned curved surface fitted according to the actual situation has a reasonable longitudinal section length and a reasonable cross-sectional width. The bionic curved surface structure of the present invention is used as a bionic curved surface plowshare soil-contacting part. The degree of damage to the soil caused by the surface of the plow body is reduced.

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Abstract

The invention relates to a bionic curved surface structure and a construction method of an agricultural machine tool soil-touching part based on a reverse engineering technology, belonging to the technical field of agricultural machinery equipment. A surface is fit by five curve fitting equation, one end of that surface is cut by a section of arc as a cross section, and the other end of the surface is smoothly connected. Based on reverse engineering technology and bionics theory, point cloud was obtained from the back surface of Takydromusmongolicus and several back curves were extracted. Fiveparallel and equal width curves were selected to fit the curve trajectory into equation. Finally, a section of arc is taken as the cross-section and the five equations are smoothly connected to complete the construction of biomimetic surface structure. The bionic curved surface structure of the invention is used as a bionic curved surface plowshare soil-contacting part and has the advantages of strong insertion ability of the soil-contacting part into the soil, low working resistance and reduced damage degree of the plow body curved surface to the soil when the bionic curved surface plowsharesoil-contacting part is applied in practice.

Description

technical field [0001] The invention relates to a bionic curved surface structure of soil-contacting parts of agricultural machinery based on reverse engineering technology and its construction method. The bionic curved surface structure is mainly designed by using reverse engineering technology and bionics theory. This structure can be applied to soil-contacting parts of agricultural machinery. It belongs to the technical field of agricultural machinery equipment. Background technique [0002] In the process of modern agricultural production, farming is one of the most energy-consuming links in agricultural production. Therefore, it is necessary to reduce the consumption of agricultural machinery and labor by optimizing the farming process. In farming, the use of agricultural machinery is the most, and among the numerous soil-contacting parts of agricultural machinery, the application of curved plows is relatively large. The plow is mainly used in: irrigation canal system,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/17G06F2119/06G06F30/20
Inventor 张智泓李莹赖庆辉王晓阳张兆国高旭航
Owner KUNMING UNIV OF SCI & TECH
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