CN208445953U - The micro- coulter of nonirrigated farmland clayed soil curved surface - Google Patents
The micro- coulter of nonirrigated farmland clayed soil curved surface Download PDFInfo
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- CN208445953U CN208445953U CN201821131966.9U CN201821131966U CN208445953U CN 208445953 U CN208445953 U CN 208445953U CN 201821131966 U CN201821131966 U CN 201821131966U CN 208445953 U CN208445953 U CN 208445953U
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- cutter hub
- curved surface
- knife
- sword
- single side
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Abstract
The utility model discloses a kind of micro- coulters of nonirrigated farmland clayed soil curved surface, belong to rotary blade.It includes flat knife handle, and one end of the knife handle extends forward and forms the cutter hub that side has single side sword, and the single side sword is the curvilinear structures being bent outwardly；It is characterized by: the cutter hub is space curved surface structure made of being successively smoothly connected as positive dissection (9), changeover portion (8), lateral incision section (7), single side sword successively by and positive dissection (9) corresponding positive cutting blade (2) and changeover portion (8) corresponding transitional edges (3), lateral incision sword (5) corresponding with lateral incision section (7) be smoothly connected；Cutter hub is gradually curved tilting along its length and forms the curved surface that angle is β, and cutter hub gradually crimps along the length trend of cutter hub in the direction of the width and forms the curved surface that angle is α.The utility model has many advantages, such as that hack effect is good, tilling depth is big, cutter life is long, is a kind of micro- coulter in the nonirrigated farmland suitable for clayed soil.
Description
Technical field
The utility model relates to a kind of rotary blade more particularly to a kind of micro- coulters；Belong to agricultural machinery.
Background technique
Rotary tillage cutter can be divided into mini-tiller rotary blade and large-scale rotary cultivator rotary blade, the two installation according to equipment size
Mode is different.Mini-tiller is installed on six square shafts with rotary blade (referred to as micro- coulter) is general by two bolts hole, and large-scale rotation
The machine of ploughing usually adopts single bolt hole installation with rotary blade；As it can be seen that micro- coulter and rotary blade are equal in terms of applicable situation and manufacturing process
It is distinct.Therefore, the rotary blade that large-scale rotary cultivator uses does not adapt to mini-tiller substantially.
It is improved currently, micro- coulter is widely used and is substantially according to incision nineties section formula rotary blade, although structure
Fairly simple (knife face uses planar structure), but hack effect is poor；It is big, easy to harden to be difficult to adapt to viscosity, based on yellowish soil
Hills or mountain soil.For this purpose,
Authorization Notice No. discloses entitled " a kind of micro- for gasoline engine model for the patent of invention of " 102090165 B of CN "
The micro- coulter in nonirrigated farmland of the dry land blade for the machine of ploughing ", which is substantially the micro- coulter product of existing market mainstream.Due to the patented product
Knife face is two-dimensional space curved surface, thus for its hack effect of clayed soil, throw native effect not yet be improved significantly.
Summary of the invention
In view of the above defects of the prior art, it is micro- to be intended to provide a kind of nonirrigated farmland clayed soil curved surface for the utility model
Coulter, micro- coulter can obviously improve the hack of clayed soil and throw native effect.
To achieve the goals above, the utility model uses following technical scheme: it includes flat knife handle, the knife handle
One end extend forward and formed side have single side sword cutter hub, the single side sword is the curvilinear structures being bent outwardly；It is described
Cutter hub is space curved surface structure made of being successively smoothly connected as positive dissection, changeover portion, lateral incision section, single side sword successively by with tangent
The corresponding positive cutting blade of section and the corresponding transitional edges of changeover portion, lateral incision sword corresponding with lateral incision section are smoothly connected；Cutter hub is along long
Degree direction is gradually curved tilting and forms the curved surface that angle is β, and cutter hub is gradually rolled up along the length trend of cutter hub in the direction of the width
It is bent and form the curved surface that angle is α.
Cutter hub is bent to the side knife surface for offering single side sword, and curved angle β is 121~124 °；Cutter hub is to opening up
There is a side knife surface of single side sword to crimp, curling angle α is 10~30 °；Cutter length is 280~330mm, knife face width is 30
~40mm, knife face are 225~245mm with a thickness of 5~6mm, cutter radius of gyration R.
Compared with the prior art, the utility model is by adopting the above-described technical solution, be changed to three-dimension curved surface for knife face
Structure；Therefore the advantages that native effect and hack effect are good, tilling depth is big, long service life is thrown.It makes a concrete analysis of as follows:
1) when cutter hub cuts soil, soil can face up flowing relative to cutter hub；And cutter hub front is three-dimensional space
Negative camber structure, therefore soil will receive the centripetal force of negative camber offer and form lateral sliding, curling, thus one more
Hack process improves the hack effect of clayed soil.
2) since the radius of gyration for increasing cutter radius of gyration R(conventional tool is 195mm), soil can be increased and hit
Hit initial velocity.In addition, due to the knife face for using three-D space structure, although cutter total length greatly increases, cutter revolution
If the incrementss of radius are only 30~50mm(cutter, radius of gyration incrementss are more than 50mm, and the matched power of mini-tiller is obvious
It is insufficient；If cutter radius of gyration incrementss are less than 30mm, hack is effect improved unobvious)
3) since knife face uses three-dimensional space curved surface structure, and bending curvature and curling curvature are with the revolution half of cutter
Diameter increases and incrementally increases (bending degree increase), therefore the centrifugal force that not only soil can be made to be subject to also is stepped up, but also
Can be avoided cutter because of unexpected bending causes stress and the moment of resistance increased dramatically, is broken, and extends cutter life.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is B-B cross-sectional view in Fig. 2；
Fig. 5 is C-C cross-sectional view in Fig. 2；
Fig. 6 is D-D cross-sectional view in Fig. 2；
Fig. 7 is E-E cross-sectional view in Fig. 2；
In figure: knife handle 1, positive cutting blade 2, transitional edges 3, cutter hub front 4, lateral incision sword 5, the cutter hub back side 6, lateral incision section 7, changeover portion
8, positive dissection 9, knife spine 10, bolt hole 11, mounting hole 12.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing.
As shown in Fig. 1~7: knife handle 1 is in plane tabular structure, offers semicircular mounting hole 12, the installation on knife handle 1
Respectively there are a bolt hole 11 in the two sides in hole.One end of knife handle 1 extends forward and forming side has knife with single side sword, the other side
The cutter hub of back 10, the single side sword are the curvilinear structures being bent outwardly, and knife spine 10 is aduncate curved-surface structure.The cutter hub
Space curved surface structure made of being successively smoothly connected as positive dissection 9, changeover portion 8, lateral incision section 7, single side sword successively by with tangent
9 corresponding positive cutting blades 2 of section and the corresponding transitional edges 3 of changeover portion 8, lateral incision sword 5 corresponding with lateral incision section 7 are smoothly connected.Knife
Body is gradually curved tilting along its length and forms the curved surface that angle is β (i.e. for cutter hub also closer to knife handle 1, bending curvature is smaller；
Further away from knife handle 1, bending curvature is bigger), cutter hub gradually crimps along the length trend of cutter hub in the direction of the width and forms angle
For the curved surface of α, (i.e. it is smaller to crimp curvature also closer to knife handle 1 for cutter hub；Further away from knife handle 1, it is bigger to crimp curvature).Wherein, it presss from both sides
Angle beta is 121~124 °, angle α is 10~30 °, and cutter length is 280~330mm, knife face width is 30~40mm, knife face is thick
Degree is that 5~6mm, cutter radius of gyration R are 225~245mm.
In order to improve centrifugal force that soil is subject to, increase and get rid of soil and hit initial velocity, improve hack effect, cutter hub is along length side
It forms Two-dimensional Surfaces (i.e. cutter hub front 4 is negative camber, the cutter hub back side 6 is to being bent to the side knife surface for offering single side sword
Positive camber)；For the ease of soil lateral sliding, curling, hack effect is improved, cutter hub is in width direction to offering single side sword
One side knife surface crimps and forms three-dimension curved surface (i.e. cutter hub front 4 is negative camber, the cutter hub back side 6 is positive camber).
Claims (2)
1. a kind of micro- coulter of nonirrigated farmland clayed soil curved surface, including flat knife handle, one end of the knife handle extend forward and are formed
Side has the cutter hub of single side sword, and the single side sword is the curvilinear structures being bent outwardly；It is characterized by: the cutter hub is by just
Space curved surface structure made of dissection (9), changeover portion (8), lateral incision section (7) are successively smoothly connected, single side sword successively by with tangent
Section (9) corresponding positive cutting blade (2) and changeover portion (8) corresponding transitional edges (3), lateral incision sword (5) light corresponding with lateral incision section (7)
Slip forms；Cutter hub is gradually curved tilting along its length and forms the curved surface that angle is β, and cutter hub is in the direction of the width along knife
The length trend of body gradually crimps and forms the curved surface that angle is α.
2. the micro- coulter of nonirrigated farmland clayed soil curved surface according to claim 1, it is characterised in that: cutter hub is to offering single side sword
A side knife surface bending, curved angle β be 121~124 °；Cutter hub is crimped to the side knife surface for offering single side sword, volume
Bent angle α is 10~30 °；Cutter length is 280~330mm, knife face width is 30~40mm, knife face is with a thickness of 5~6mm, knife
Tool radius of gyration R is 225~245mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821131966.9U CN208445953U (en) | 2018-07-17 | 2018-07-17 | The micro- coulter of nonirrigated farmland clayed soil curved surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821131966.9U CN208445953U (en) | 2018-07-17 | 2018-07-17 | The micro- coulter of nonirrigated farmland clayed soil curved surface |
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| Publication Number | Publication Date |
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| CN208445953U true CN208445953U (en) | 2019-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821131966.9U Active CN208445953U (en) | 2018-07-17 | 2018-07-17 | The micro- coulter of nonirrigated farmland clayed soil curved surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108848693A (en) * | 2018-07-17 | 2018-11-23 | 贵州省山地农业机械研究所 | The micro- coulter of nonirrigated farmland clayed soil curved surface |
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2018
- 2018-07-17 CN CN201821131966.9U patent/CN208445953U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108848693A (en) * | 2018-07-17 | 2018-11-23 | 贵州省山地农业机械研究所 | The micro- coulter of nonirrigated farmland clayed soil curved surface |
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