CN103069971A - Saw-blade saw bit with bionic sawteeth for cutting maize straws - Google Patents
Saw-blade saw bit with bionic sawteeth for cutting maize straws Download PDFInfo
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- CN103069971A CN103069971A CN2013100238778A CN201310023877A CN103069971A CN 103069971 A CN103069971 A CN 103069971A CN 2013100238778 A CN2013100238778 A CN 2013100238778A CN 201310023877 A CN201310023877 A CN 201310023877A CN 103069971 A CN103069971 A CN 103069971A
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Abstract
The invention relates to a saw-blade saw bit with bionic sawteeth for cutting maize straws, which belongs to the technical field of the simulation of agricultural machinery. The curve of the sawteeth in the saw-blade saw bit is similar to that of the outer contour of Chondracris rosea rosea cutting teeth, and a polynomial expression of a triangular function of a single curve unit is as follows: y=184.2sin(0.004499x+0.04364)+72.21sin(0.009018x+1.696)+48.33sin(0.0176x+2.394)+38.07sin(0.03065x-1.964)+11.13sin(0.07535x-0.5685)+13.37sin(0.03792x-1.018)+2.744sin(0.06923x+0.3267)+11.63sin(0.04853x+4.342), wherein x is more than or equal to 0 and less than or equal to 667; and compared with a traditional straight-sectional sawtooth structure or the traditional sawtooth structure consisting of straight sections and arc sections, the sawtooth curve structure can reduce the cutting resistance in the cutting process, so that the power consumption for cutting the maize straws can be reduced by 13 percent, the phenomenon for seizing the saw bit can be reduced, and the abrasion resistance and the working efficiency of the sawteeth can be improved.
Description
Technical field
The invention belongs to agricultural machinery bionics techniques field, be specifically related to a kind of saw blade saw blade that has bionical sawtooth for the maize straw cutting in the agricultural machinery.
Background technology
China's maize straw annual production is about 600,000,000 tons, is important biomass resource in the crops production system.The cutting process of stalk is continuous interactional process between stalk and the cutting implement workpiece.Because the special institutional framework of maize straw tangent plane can be resisted the stem stalk and be destroyed, cause energy consumption height in the maize straw cutting process.And stalk cutting implement working condition is very abominable, complicated, and the abrasive material generation fretting wear often and in the soil in sandstone or the crops causes the inefficacy of cutting implement workpiece.At present, the cutting part of maize straw mostly is straight knife or is with serrate blade, and these blades consume a large amount of energy in the process of cutting maize straw.So reduce maize straw cutting energy consumption, improve the wearability of maize straw cutting workpiece, be the key technology that improves facility productivity ratio and reduce production costs.In addition, maize straw is realized that cutting high-quality, efficient, low-power consumption is the basic demand that realizes conservation tillage.
Research finds that some crop pest has special and effective cutting power, such as locust.Wherein cotton locust is common a kind of of locust, mainly has the crop branches and leaves of vegetable fiber structure as food take cotton, bamboo, sugarcane, corn, camphor tree, coconut, horsetail beefwood etc.Research finds that cotton locust maxilla cutting outer margin contour has special laciniation, and in the time of on the feed, cotton locust cutting and vegetable fiber direct effect cut off vegetable fiber.Cotton locust species are in the long evolutionary process of occurring in nature process, the outer margin contour geometry of its maxilla cutting has low energy consumption, efficient and wear-resisting excellent properties to the cutting plants fibre structure, the cross section of maize straw is take vegetable fiber as main, and this characteristic provides bionical prototype for the Bionic Design of maize straw cutting part.Pass through reverse Engineering Technology, obtain the outer margin contour curve of cotton locust maxilla cutting, apply it in the maize straw cutting workpiece, this is for improving maize straw cutting workpiece, and, low-power consumption operation high-quality, efficient to the realization of maize straw cutting provides design considerations.
Summary of the invention
For reducing the work energy consumption of maize straw cutting workpiece, improve the workpiece life-span, for maize straw cutting workpiece provides a kind of bionical sweep-saw toothing, described bionical sweep-saw toothing is a kind of imitative cotton locust cutting outer margin contour sweep-saw toothing.
The technical solution used in the present invention is: as bionical object, the geometry feature application that it is special is cut off among the design of workpiece sawtooth to maize straw with locust cutting outer margin contour curve.
The present invention is a kind of to have the saw blade saw blade of bionical sawtooth for maize straw cutting, the Similar Broken Line of the curve of sawtooth and cotton locust cutting outer margin contour on its saw blade saw blade, and wherein the trigonometric function multi-term expression of single curved unit is:
Y=184.2sin (0.004499x+0.04364)+72.21sin (0.009018x+1.696)+48.33sin (0.0176x+2.394)+38.07sin (0.03065x-1.964)+11.13sin (0.07535x-0.5685)+13.37sin (0.03792x-1.018)+2.744sin (0.06923x+0.3267)+11.63sin (0.04853x+4.342), wherein 0≤x≤667.
The length of described single curved unit is 6 millimeters to 120 millimeters, and can zoom in or out in the constant situation of the ratio of width to height keeping.
Described curved unit is arranged continuously with linear pattern or circular ring type.
The straight line total length that described curved unit is arranged continuously take linear pattern is as 6 millimeters to 2000 millimeters.
The annular radii that described curved unit is arranged continuously take circular ring type is as 60 millimeters to 400 millimeters.
Adopt bionical sawtooth of the present invention that the cutting experiment of maize straw is proved, with traditional being compared with the broached-tooth design that arc section forms by straightway or straightway, sawtooth curve structure of the present invention can make the power-dissipation-reduced nearly 13% of cutting maize straw, and can reduce the binding phenomenon, improve wearability and the operating efficiency of sawtooth.
Description of drawings
Fig. 1 is the schematic diagram that has the single curved unit of saw blade saw blade of bionical sawtooth for the maize straw cutting
Fig. 2 is reciprocating type maize straw cutting Straight blade and the local schematic diagram that amplifies of the single curved unit of sawtooth that curved unit is arranged continuously with linear pattern
Fig. 3 is rotary maize straw cutting saw blade and the local schematic diagram that amplifies of the single curved unit of sawtooth that curved unit is arranged continuously with circular ring type
Embodiment
Below in conjunction with accompanying drawing described embodiment is further specified the specific embodiment of the present invention.
Embodiment 1
As shown in Figure 2, this example is arranged continuously for the linear pattern that is used for the cutting maize straw and is imitated the reciprocating type saw blade of cotton locust cutting outer margin contour sweep-saw toothing, be characterized in: cotton locust cutting outer margin contour sweep-saw toothing is the continuous array of type linearly, the length of sawtooth is 375 millimeters on the saw blade, and the sawtooth unit of 24 groups of imitative cotton locust cutting outer margin contour curves is arranged on this length.
Embodiment 2
As shown in Figure 3, this example is arranged continuously for the circular ring type that is used for the cutting maize straw and is imitated the rotary saw blade of cotton locust cutting outer margin contour sweep-saw toothing, be characterized in: cotton locust cutting outer margin contour sweep-saw toothing is the continuous array of circular ring type, the radius of this circular saw is 280 millimeters, and the sawtooth unit of 58 groups of imitative cotton locust cutting outer margin contour curves is arranged on the peripheral length of circular saw.
Claims (5)
1. one kind is used for the saw blade saw blade that the maize straw cutting has bionical sawtooth, it is characterized in that the curve of sawtooth on the saw blade saw blade and the Similar Broken Line of cotton locust cutting outer margin contour, wherein the trigonometric function multi-term expression of single curved unit is: y=184.2sin (0.004499x+0.04364)+72.21sin (0.009018x+1.696)+48.33sin (0.0176x+2.394)+38.07sin (0.03065x-1.964)+11.13sin (0.07535x-0.5685)+13.37sin (0.03792x-1.018)+2.744sin (0.06923x+0.3267)+11.63sin (0.04853x+4.342), wherein 0≤x≤667.
2. have the saw blade saw blade of bionical sawtooth by claimed in claim 1 for maize straw cutting, the length that it is characterized in that described single curved unit is 6 millimeters to 120 millimeters, and can zoom in or out in the constant situation of the ratio of width to height keeping.
3. have the saw blade saw blade of bionical sawtooth by claimed in claim 1 for maize straw cutting, it is characterized in that described curved unit arranges continuously with linear pattern or circular ring type.
4. have the saw blade saw blade of bionical sawtooth by claimed in claim 3 for maize straw cutting, it is characterized in that straight line total length that described curved unit arranges continuously take linear pattern is as 6 millimeters to 2000 millimeters.
5. have the saw blade saw blade of bionical sawtooth by claimed in claim 3 for maize straw cutting, it is characterized in that annular radii that described curved unit arranges continuously take circular ring type is as 60 millimeters to 400 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023877.8A CN103069971B (en) | 2013-01-22 | 2013-01-22 | Saw-blade saw bit with bionic sawteeth for cutting maize straws |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310023877.8A CN103069971B (en) | 2013-01-22 | 2013-01-22 | Saw-blade saw bit with bionic sawteeth for cutting maize straws |
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| Publication Number | Publication Date |
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| CN103069971A true CN103069971A (en) | 2013-05-01 |
| CN103069971B CN103069971B (en) | 2015-07-01 |
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| CN201310023877.8A Expired - Fee Related CN103069971B (en) | 2013-01-22 | 2013-01-22 | Saw-blade saw bit with bionic sawteeth for cutting maize straws |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103548489A (en) * | 2013-11-18 | 2014-02-05 | 吉林大学 | High-stubble reserving type maize harvesting machine |
| CN105144982A (en) * | 2015-06-17 | 2015-12-16 | 吉林大学 | Corn stubble cutting device with bionic structure |
| CN107116268A (en) * | 2017-07-06 | 2017-09-01 | 西南大学 | A kind of novel saw-tooth structure |
| CN109041599A (en) * | 2018-10-25 | 2018-12-21 | 吉林大学 | It is a kind of to cut a batch device for Subsoiler |
| CN113647254A (en) * | 2021-08-26 | 2021-11-16 | 江苏大学 | Bionic chopping knife, straw chopping device and combine harvester |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2877245Y (en) * | 2005-12-16 | 2007-03-14 | 宋永军 | Straw cutting device of corn harvester |
| CN102132658A (en) * | 2011-01-14 | 2011-07-27 | 东北农业大学 | Cutting edge curve form having bionic geometric construction characteristics |
| CN102349392A (en) * | 2011-09-02 | 2012-02-15 | 吉林大学 | Method for designing bionic toothed disc cutting component |
-
2013
- 2013-01-22 CN CN201310023877.8A patent/CN103069971B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2877245Y (en) * | 2005-12-16 | 2007-03-14 | 宋永军 | Straw cutting device of corn harvester |
| CN102132658A (en) * | 2011-01-14 | 2011-07-27 | 东北农业大学 | Cutting edge curve form having bionic geometric construction characteristics |
| CN102349392A (en) * | 2011-09-02 | 2012-02-15 | 吉林大学 | Method for designing bionic toothed disc cutting component |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103548489A (en) * | 2013-11-18 | 2014-02-05 | 吉林大学 | High-stubble reserving type maize harvesting machine |
| CN103548489B (en) * | 2013-11-18 | 2015-12-02 | 吉林大学 | One stays high stubble formula maize harvesting machine |
| CN105144982A (en) * | 2015-06-17 | 2015-12-16 | 吉林大学 | Corn stubble cutting device with bionic structure |
| CN107116268A (en) * | 2017-07-06 | 2017-09-01 | 西南大学 | A kind of novel saw-tooth structure |
| CN107116268B (en) * | 2017-07-06 | 2019-06-07 | 西南大学 | A kind of broached-tooth design |
| CN109041599A (en) * | 2018-10-25 | 2018-12-21 | 吉林大学 | It is a kind of to cut a batch device for Subsoiler |
| CN113647254A (en) * | 2021-08-26 | 2021-11-16 | 江苏大学 | Bionic chopping knife, straw chopping device and combine harvester |
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| CN103069971B (en) | 2015-07-01 |
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Inventor after: Jia Honglei Inventor after: Wang Gang Inventor after: Li Changying Inventor after: Zhang Zhihong Inventor after: Liu Zhaochen Inventor after: Qi Jiangtao Inventor after: Zhuang Jian Inventor after: Fan Xuhui Inventor before: Jia Honglei Inventor before: Li Changying Inventor before: Zhang Zhihong Inventor before: Wang Gang Inventor before: Liu Zhaochen Inventor before: Qi Jiangtao Inventor before: Zhuang Jian Inventor before: Fan Xuhui |
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Free format text: CORRECT: INVENTOR; FROM: JIA HONGLEI LI CHANGYING ZHANG ZHIHONG WANG GANG LIU ZHAOCHEN QI JIANGTAO ZHUANG JIAN FAN XUHUI TO: JIA HONGLEI WANG GANG LI CHANGYING ZHANG ZHIHONG LIU ZHAOCHEN QI JIANGTAO ZHUANG JIAN FAN XUHUI |
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Granted publication date: 20150701 Termination date: 20200122 |