CN104982138B - A kind of bionical cutting blade of reed harvester and its manufacture method - Google Patents
A kind of bionical cutting blade of reed harvester and its manufacture method Download PDFInfo
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- CN104982138B CN104982138B CN201510302352.7A CN201510302352A CN104982138B CN 104982138 B CN104982138 B CN 104982138B CN 201510302352 A CN201510302352 A CN 201510302352A CN 104982138 B CN104982138 B CN 104982138B
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Abstract
The present invention relates to a kind of bionical cutting blade of reed harvester, belong to technical field of agricultural mechanical equipment.The blade includes the blade base with upper and lower surface and two hypotenuses, the blade base is transitioned into upper surface by forming the blade surface of the blade basil respectively by two hypotenuses of lower surface, the outside spacers of the blade surface are distributed one group of cutting teeth, the cutting teeth is made up of the cylinder back of tooth and cutting teeth profile, the cylinder axis and lower surface into the tooth angle for being more than the blade basil of the cylinder back of tooth are formed, the cutting teeth profile is the equidistant curve of longicorn maxilla cutting teeth matched curve.Using the present invention because Cutting Drag is obviously reduced, therefore power consumption is substantially reduced, and cut quality is good, it is entirely avoided reed stalk is pushed over by cutter, and ceding of Taiwan conveying clogging.It is reasonable that：Longicorn forms and sting butt face and have the maxilla of unique advantage chewing by very long evolution, is a kind of preferable optimization design by its bionical reed harvester cutting blade that applies to.
Description
Technical field
The present invention relates to a kind of cutter, the especially a kind of bionical cutting blade of reed harvester, while being related to its manufacturer
Method, belongs to technical field of agricultural mechanical equipment.
Background technology
Reed is a kind of perennial grass, once plantation can Multiple harvests, be very important ecological, society,
Economic resources, as paper making raw material, good forage, solid native whole natural pond, keeping ecological balance etc. many-sided all has great advantage.
Maturity period reed stalk xylem crust is thicker, quality is harder, according to the applicant understood：Current reed harvester is used
Reciprocal double acting blade triangle pointed tooth cutter generally existing Cutting Drag is big, the problem that power consumption is high.And it was verified that thing
Cut quality there is also very big problem in reality, because existing cutting blade can not reliably cut off reed stalk in time, and with
The advance of harvester, reed stalk will be pushed over by cutter, cause leakage to cut, a series of companies such as ceding of Taiwan conveying is blocked, stalk is toppled over
Lock reactor, causes machine to receive Frequent Troubles, and the operating efficiency and machine for having had a strong impact on Reed are produced effects benefit.
Therefore, develop Cutting Drag is small, low in energy consumption, cut quality is good cutter blade and turn into and realize reed harvester
Efficiently, high-quality, low consumption harvesting key subject.
The content of the invention
It is an object of the invention to：For the problem that existing reed harvester cutting blade is present, a kind of cutting resistance is proposed
The bionical cutting blade of reed harvester that power is small, low in energy consumption, cut quality is good, while providing its manufacture method.
To achieve the above objectives, applicant have observed that：Longicorn is food with reed stems and leaves, is the common insect pests of reed, its mouth
There is the unique structure of device maxilla excellent chewing to cut off performance, and the plant stipes that will can be clipped in the middle of the maxilla of left and right is disposable
Bite broken, cause whole strain reed withered death.If it is benefit to draw evil, this characteristic of longicorn is applied into reed by bionic principle receives
In the research and design of cutting mill cutting blade, it is expected to form low-resistance, low consumption, high-quality cutting blade.
The technical solution of the present invention of formation is on the basis of to longicorn maxilla cutting part bionics fiber：A kind of reed is received
The bionical cutting blade of cutting mill, including the blade base with upper and lower surface and hypotenuse, the blade base is by the oblique of lower surface
While being transitioned into upper surface by forming the blade surface of the blade basil, the outside spacers of the blade surface are distributed one group of cutting teeth, its feature
It is：The cutting teeth is made up of the cylinder back of tooth and cutting teeth profile, forms the cylinder axis and lower surface of the cylinder back of tooth
Into the tooth angle more than the blade basil, the cutting teeth profile is the equidistant curve of longicorn maxilla cutting teeth matched curve.
Of the invention further improving is that the cutting teeth profile is the equidistant curve of following fit curve equation：
y=ax4-bx3+cx2-dx+ e
The wherein span of a is 0.007x85% ~ 0.007x115%, the span of b be 0.031x85% ~
The span of 0.031x115%, c is 0.114x85% ~ 0.114x115%, the span of d be 0.546x85% ~
The span of 0.546x115%, e is -2 ~ 2.
Of the invention further improving is that the tooth pitch of the cutting teeth is 3 ~ 7 mm, and tooth is high and tooth pitch ratio is
0.16~0.4；The blade basil is 15 ° ~ 30 °, and tooth angle is 25 ° ~ 37 °.
Of the invention further improving is that the blade base is isosceles triangle or isosceles trapezoid and rectangle pommel group
Conjunction is formed, with two symmetrical hypotenuses.
Of the invention also further improving is that the cylinder axis of the cutting teeth cylinder back of tooth are on the upper and lower surface of blade
Projection and blade or so central axis.
The manufacture method basic step of the bionical cutting blade of reed harvester of the present invention is as follows：
Step one, blankings --- get the blade base blank of required shape ready；
Step 2 sets --- and constant pitch, tooth high, the blade basil, tooth angle are selected, and determines therefrom that longicorn maxilla cutting teeth
The equidistant curve of matched curve is used as cutting teeth profile, and the body diameter for forming the cylinder back of tooth；
Step 3 tangent planes --- process blade surface by the blade basil；
Step 4 cutting teeths --- processed by the tooth pitch requirement diameter cylinder knife tool equal with the body diameter for determining
Form the cylinder back of tooth of each adjacent cutting teeth；
Step 5 cuts exterior feature --- and the cutting teeth profile by determining processes cutting teeth profile.
Reed is carried out using the bionical cutting blade of reed harvester of the invention, compared with prior art, due to cutting
Resistance is cut to be obviously reduced, therefore power consumption is substantially reduced, and cut quality is good, it is entirely avoided and reed stalk is pushed over by cutter,
And ceding of Taiwan conveying clogging.It is reasonable that：Longicorn forms and stings butt face with uniqueness in chewing by very long evolution
The maxilla of advantage, is a kind of preferable optimization design by its bionical reed harvester cutting blade that applies to, and its manufacture method
It is practical.
Brief description of the drawings
The specific embodiment reflected by the following drawings illustrates that the features and advantages of the present invention will become to be more prone to reason
Solution.
Fig. 1 is the structural representation of one embodiment of the invention.
Fig. 2 is partial enlarged drawing at the A of Fig. 1.
Fig. 3 is the M-M section partial enlarged drawings of Fig. 1.
Fig. 4 is that longicorn maxilla flank profil extracts point and flank profil matched curve.
Specific embodiment
Embodiment one
The bionical cutting blade of reed harvester of the present embodiment is as shown in figure 1, blade base 1 is isosceles triangle and rectangle
Pommel is combined, in approximate isosceles triangle, with upper and lower surface 1-1,1-2, and two hypotenuses.The rectangle of blade base 1
End is provided with location hole 4.
Blade base 1 is transitioned into upper surface by forming the blade surface 3 of blade angle beta respectively by two hypotenuses of lower surface 1-2
1-1.The outside spacers of blade surface 3 are distributed one group of cutting teeth 2.
From Fig. 2, Fig. 3, cutting teeth 2 is made up of cylinder back of tooth 2-1 and cutting teeth profile S, forms cylinder back of tooth 2-1's
With lower surface 1-2 into the tooth angle γ more than blade angle beta, cutting teeth profile S is fitted cylinder axis for longicorn maxilla cutting teeth
The equidistant curve of curve.
Specifically, the feasible structural parameters of the single cutting teeth of the bionical cutting blade of reed harvester and the present embodiment is excellent
It can be 3 ~ 7 mm, preferably 5.5mm to select parameter tooth pitch p；Tooth h high and tooth pitch p ratio are 0.16 ~ 0.4, preferably 0.19；Blade angle beta
It is 15 ° ~ 30 °, preferably 20 °；Cutting teeth tooth angle γ is 25 ° ~ 37 °, preferably 30 °；Blade base thickness t is 2 ~ 4 mm, preferably
3mm。
The cutting teeth profile S of cutting teeth is as shown in figure 4, fit curve equation is：
y=0.007x4-0.031x3+0.114x2-0.546x+ e
Each level number can be in the range of its positive and negative deviation 15% in equation, and the wherein excursion of intercept is -2 ~ 2.
According to parameter determined above, you can extrapolate the Suitable cylindrical radius to form cylinder back of tooth 2-1.For the ease of
The reciprocating translation cutting in left and right, the cylinder axis of the cutting teeth cylinder back of tooth are in the projection on the upper and lower surface of blade and blade or so
Heart line is vertical, and the cylinder hands over forming curves Q for 3 sections with blade surface.
The basic manufacturing step of the bionical cutting blade of reed harvester of the present embodiment is as follows
Step one, blankings --- get the blade base blank of required shape ready；
Step 2 sets --- and constant pitch, tooth high, the blade basil, tooth angle are selected, and determines therefrom that longicorn maxilla cutting teeth
The equidistant curve of matched curve is used as cutting teeth profile, and the body diameter for forming the cylinder back of tooth；
Step 3 tangent planes --- process blade surface by the blade basil；
Step 4 cutting teeths --- by the tooth pitch requirement diameter cylindrical milling cutter equal with the body diameter for determining（Also may be used
With with broaching tool or other forming tools）Process the cylinder back of tooth to form each adjacent cutting teeth；
Step 5 cuts exterior feature --- and the cutting teeth profile linear cutter by determining goes out cutting teeth profile.
When using, the bionical cutting blade lower surface of two groups of the present embodiment of requirement is mounted opposite in reed harvester
On, form the reciprocating cutter sweep of shaving shape.As a result repetition test shows that Cutting Drag is obviously reduced, and power consumption drops significantly
It is low, it is to avoid the phenomenon such as reed stalk is pushed over by cutter, ceding of Taiwan conveying is blocked, it can be ensured that cutting harvests quality.
In addition to the implementation, the present invention can also have other embodiment.All use equivalents or equivalent transformation shape
Into technical scheme, all fall within the protection domain of application claims.
Claims (5)
1. a kind of bionical cutting blade of reed harvester, including the blade base with upper and lower surface and hypotenuse, the blade
Matrix is transitioned into upper surface, the outside spacers distribution one of the blade surface by the hypotenuse of lower surface by forming the blade surface of the blade basil
Group cutting teeth, it is characterised in that：The cutting teeth is made up of the cylinder back of tooth and cutting teeth profile, forms the circle of the cylinder back of tooth
With lower surface into the tooth angle more than the blade basil, the cutting teeth profile is longicorn maxilla cutting teeth matched curve to mast axis
Equidistant curve；
The cutting teeth profile is the equidistant curve of following fit curve equation：
Y=ax4-bx3+cx2-dx+e
The wherein span of a is 0.007x85%~0.007x115%, the span of b be 0.031x85%~
The span of 0.031x115%, c is 0.114x85%~0.114x115%, the span of d be 0.546x85%~
The span of 0.546x115%, e is -2~2.
2. the bionical cutting blade of reed harvester according to claim 1, it is characterised in that：The tooth pitch of the cutting teeth is
3-7mm, tooth is high and tooth pitch ratio is 0.16-0.4；The blade basil is 15 ° -30 °, and tooth angle is 25 ° -37 °.
3. the bionical cutting blade of reed harvester according to claim 2, it is characterised in that：The blade base is isosceles
Triangle or isosceles trapezoid are combined with rectangle pommel, with two symmetrical hypotenuses.
4. the bionical cutting blade of reed harvester according to claim 3, it is characterised in that：The cutting teeth cylinder back of tooth
Cylinder axis the upper and lower surface of blade projection and blade or so central axis.
5. the manufacture method of any bionical cutting blade of reed harvester of Claims 1-4, it is characterised in that basic step
It is as follows：
Step one, blankings --- get the blade base blank of required shape ready；
Step 2 sets --- and constant pitch, tooth high, the blade basil, tooth angle are selected, and determines therefrom that longicorn maxilla cutting teeth is fitted
The equidistant curve of curve is used as cutting teeth profile, and the body diameter for forming the cylinder back of tooth；
Step 3 tangent planes --- process blade surface by the blade basil；
Step 4 cutting teeths --- process to be formed by the tooth pitch requirement diameter cylinder knife tool equal with the body diameter for determining
The cylinder back of tooth of each adjacent cutting teeth；
Step 5 cuts exterior feature --- and the cutting teeth profile by determining processes cutting teeth profile.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510302352.7A CN104982138B (en) | 2015-06-05 | 2015-06-05 | A kind of bionical cutting blade of reed harvester and its manufacture method |
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| CN201510302352.7A CN104982138B (en) | 2015-06-05 | 2015-06-05 | A kind of bionical cutting blade of reed harvester and its manufacture method |
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| CN104982138B true CN104982138B (en) | 2017-06-30 |
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| CN105904022B (en) * | 2016-06-03 | 2017-12-15 | 杭州电子科技大学 | The preparation method of the broaching tool of imitative mantis mouthpart maxilla configuration |
| CN106863481B (en) * | 2017-03-16 | 2019-02-26 | 吉林大学 | A kind of bionical zigzag structure |
| CN110102819B (en) * | 2019-04-29 | 2020-04-07 | 杭州电子科技大学 | Molossi beetle fin surface-imitated micro-structure key slot broach and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3208270A1 (en) * | 1981-04-10 | 1982-11-04 | Gustav Schumacher Ii | Cutter blade for to-and-fro mowing cutters of harvesting machines and process for producing a cutter blade of this type |
| IT1205147B (en) * | 1987-06-12 | 1989-03-15 | Bcs Spa | DYNAMICALLY COMPENSATED ANTI-CLOG MOWING DEVICE |
| US6857255B1 (en) * | 2002-05-16 | 2005-02-22 | Fisher-Barton Llc | Reciprocating cutting blade having laser-hardened cutting edges and a method for making the same with a laser |
| CN101258793B (en) * | 2008-04-24 | 2011-12-28 | 吉林大学 | Bionic drag reduction stubbling knife and design method thereof |
| CN102265739A (en) * | 2011-06-19 | 2011-12-07 | 云南省农业机械研究所 | Blade of three-surface tooth cutter |
| CN104126360A (en) * | 2014-07-07 | 2014-11-05 | 吉林大学辊锻件厂 | Bionic agricultural machinery movable blade and manufacturing method thereof |
| CN204721855U (en) * | 2015-06-05 | 2015-10-28 | 农业部南京农业机械化研究所 | The bionical cutting blade of a kind of reed harvester |
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