CN208338291U - A kind of harvester crushing knife conducive to protection cutter head - Google Patents
A kind of harvester crushing knife conducive to protection cutter head Download PDFInfo
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- CN208338291U CN208338291U CN201820936609.3U CN201820936609U CN208338291U CN 208338291 U CN208338291 U CN 208338291U CN 201820936609 U CN201820936609 U CN 201820936609U CN 208338291 U CN208338291 U CN 208338291U
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- cutter head
- knife plate
- knife
- conducive
- right end
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Abstract
The utility model discloses a kind of harvester crushing knifes conducive to protection cutter head; including knife plate and cutter head; the cutter head is made of hard alloy; the upper right corner of the knife plate is equipped with the opening of rectangle; the horizontal section of the opening is equipped with the mounting groove of a strip; the bottom end of the cutter head is equipped with the installation projection of strip; the installation projection is set in mounting groove; the length of the cutter head is less than or equal to the length of mounting groove, and the right end of the cutter head is concordant with the right end of knife plate or is set to the left of knife plate right end.The utility model enhances the hardness of crushing knife cutter head, to improve the speed and quality of harvesting, and improves the protection to cutter head, enhances the ability of the anti-lateral external forces of crushing knife with external force backwards.
Description
Technical field
The utility model relates to the technical fields of harvester crushing knife, and in particular to a kind of harvesting conducive to protection cutter head
Machine crushing knife.
Background technique
China is exactly a large agricultural country since ancient times, and agricultural is always the lifeblood of national economy, whether agriculture development
It is directly related to the stabilization and development of society, modern agriculture is done to replace manually, having saved a large amount of labour using harvester, and
The speed of grain harvesting is improved, has made great contribution for the development of agricultural, harvester is integration harvesting crops
Machinery, it is disposable to complete harvesting, threshing, and grain is focused on into repository, grain is then being transported to by fortune by conveyer belt
On defeated vehicle.
In the prior art, the crushing knife of harvester is normal quenching blade, and hardness is only 55~60HRC,
Careless length is gathered in greater than 20 centimetres after gathering in 80 mu of ground, the situation of haystack product occurs, since the harvested grass of common steel knife is long, field
In grass have to pass through secondary treatment after could plant next season crops.
Utility model content
The utility model in view of the above-mentioned problems, provide it is a kind of conducive to protection cutter head harvester crushing knife, enhance powder
The hardness of broken knife cutter head to improve the speed and quality of harvesting, and improves the protection to cutter head, enhances crushing knife
The ability of anti-lateral external forces and external force backwards.
The technical solution of the utility model solution technical problem are as follows:
A kind of harvester crushing knife conducive to protection cutter head, including knife plate and cutter head, the cutter head are by hard alloy system
At the upper right corner of the knife plate is equipped with the opening of rectangle, and the horizontal section of the opening is equipped with the mounting groove of a strip, institute
The bottom end for stating cutter head is equipped with the installation projection of strip, and the installation projection is set in mounting groove, and the length of the cutter head is small
In the length for being equal to mounting groove, and the right end of the cutter head is concordant with the right end of knife plate or is set to the left of knife plate right end.
Further, the knife plate is made of steel plate.
Further, the lower right corner of the knife plate forms notch after being removed, and the high a of the notch is the 1/2 of the high b of knife plate
To 1/4, the long c of the notch and the long d of opening are equal.
Further, the cutter head is fixed on knife plate by welding.
Further, mounting hole is provided on the knife plate, the left end of knife plate is arranged in the mounting hole.
The effect provided in utility model content is only the effect of embodiment, rather than whole effects that utility model is all
Fruit, a technical solution in above-mentioned technical proposal have the following advantages that or the utility model has the advantages that
1, the present invention is made of cutter head of hard alloy, and the hardness of hard alloy is 90HRA, in the prior art commonly
The hardness of knife is only 55-60HRC, improves the hardness of knife, and using hard alloy high rigidity, high abrasion, cutting efficiency waits spies fastly
It selects and has the function that the crops such as high-speed cutting wheat, rice；And it is less than or equal to the length of mounting groove by the length of cutter head, and
The right end of the cutter head and the right end of knife plate are concordant or be set to the left of knife plate right end, on the one hand reduce the size essence of fluting
Degree, so that the difficulty of fluting processing is reduced, on the other hand, since crushing knife is fixedly mounted on harvester by knife plate
, if the right end of cutter head is prominent in the right end of knife plate, cutter head is easily detached from knife plate after by back force from bottom to top, will
And the right end of knife plate is concordant or the right end of cutter head is retracted a small distance to the left for the right end of cutter head, and the effect of protection is played to cutter head
Fruit, thus efficiently solve the problems, such as crushing knife by from bottom to top backwards to external force when weld seam it is easy to crack.
2, the utility model by installing projection by being set in mounting groove, relatively than in the prior art directly by cutter head
It is welded after being docked with knife plate, increases the binding force of cutter head and knife plate, it is therefore prevented that cutter head receives horizontal external force in cutting process
When weld cracking the occurrence of.
3, the utility model is by the way that in opening of the upper end of knife plate equipped with rectangle, the cutter head is arranged by welding
It is directly mounted at the upper end of knife plate in comparing on the horizontal section of opening, the vertical section of the side of cutter head and knife plate opening
In conjunction with playing a protective role to cutter head.
4, since the hardness of cutter head is high, poor toughness, when cutter head gets to hard foreign matter, cutter head easily bursts apart, the present invention
The lower right corner of knife plate forms notch after being removed, the half that the wide a of the notch is the wide b of knife plate is described to a quarter
The long c of notch is equal with the long d that is open, and by the way that notch is arranged, increases the deflection of knife plate, is set to the cutter head above notch and exists
When encountering foreign matter, knife plate deforms, and plays the role of buffering, thus caused by efficiently solving because getting to hard foreign matter
The problem of cutter head is broken.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the utility model；
Fig. 2 is the main view of knife plate；
Fig. 3 is the top view of knife plate；
Fig. 4 is the cross-sectional view in the direction A-A in Fig. 2；
In figure, knife plate 1, mounting hole 11, mounting groove 12, opening 13, notch 14, cutter head 2, installation projection 21.
Specific embodiment
In order to clearly illustrate the technical characterstic of this programme, below by specific embodiment, and its attached drawing 1 to 4 is combined,
The utility model is elaborated.Following disclosure provide many different embodiments or example be used to realize it is practical
Novel different structure.In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.
In addition, the utility model can in different examples repeat reference numerals and/or letter.This repetition is in order to simplified and clear
Purpose, itself do not indicate discussed various embodiments and/or setting between relationship.It should be noted that being schemed in the accompanying drawings
The component shown is not drawn necessarily to scale.The description to known assemblies and treatment technology and process is omitted to keep away in the utility model
Exempt to be unnecessarily limiting the utility model.
A kind of harvester crushing knife conducive to protection cutter head, including knife plate 1 and cutter head 2, the cutter head 2 is by hard alloy
It is made, the knife plate is made of steel plate, and the hardness of hard alloy is 90HRA, and the hardness of regular knife is only 55- in the prior art
60HRC improves the hardness of knife, and using hard alloy high rigidity, high abrasion, it is small that the features such as cutting efficiency is fast reaches high-speed cutting
The effect of the crops such as wheat, rice；The upper right corner of the knife plate 1 is equipped with the opening 13 of rectangle, the horizontal section of the opening 13
It is equipped with the mounting groove 12 of a strip, the bottom end of the cutter head 2 is equipped with the installation projection 21 of strip, the installation projection 21
It is set in mounting groove 12, is welded after relatively than in the prior art directly docking cutter head with knife plate, increase cutter head and knife plate
Binding force, it is therefore prevented that when cutter head receives horizontal external force in cutting process the occurrence of weld cracking, the utility model is logical
The opening that the upper end in knife plate is equipped with rectangle is crossed, the cutter head is set to by welding on the horizontal section of opening, phase
Comparison is directly mounted at the upper end of knife plate, and the side of cutter head is played protection to cutter head and made in conjunction with the vertical section that knife plate is open
Be less than or equal to the length of mounting groove 12 with the length of, the cutter head 2, and the right end of the cutter head 2 it is concordant with the right end of knife plate or
It is set to the left of knife plate right end, on the one hand reduces the dimensional accuracy of fluting, so that the difficulty of fluting processing is reduced, it is another
Aspect, since crushing knife is fixedly mounted on harvester by knife plate, if the right end of cutter head is prominent in the right end of knife plate, knife
Head after by back force from bottom to top then easily be detached from knife plate, by the right end of cutter head with the right end of knife plate concordant or cutter head
Right end be retracted a small distance to the left, thus efficiently solve crushing knife by from bottom to top backwards to external force when weld seam easily open
The problem of splitting.
Further, notch 14 is formed after the lower right corner of the knife plate 1 is removed, the high a of the notch 14 is that knife plate 1 is high
The 1/2 to 1/4 of b shows that as 1/3 that preferred a is b be preferred plan by largely testing, the long c of the notch 14 with
The long d of opening 13 is equal.Since the hardness of cutter head is high, poor toughness, when cutter head gets to hard foreign matter, cutter head easily bursts apart,
The lower right corner of knife plate of the present invention forms notch after being removed, and by the way that notch is arranged, increases the deflection of knife plate, is set to notch
When encountering foreign matter, knife plate deforms the cutter head of top, plays the role of buffering, to efficiently solve hard because getting to
The problem of cutter head is broken caused by foreign matter.
Further, the cutter head 2 is fixed on by welding on knife plate 1, wherein the mode welded uses soldering,
Soldering can make knife plate and cutter head to dock place more smooth.
Further, it is provided with mounting hole 11 on the knife plate 1, the mounting hole 11 is arranged in the left end of knife plate, passes through
Mounting hole is matched with the hole on harvester and is fixed on harvester.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to utility model, not to the utility model
The limitation of protection scope, based on the technical solution of the present invention, those skilled in the art do not need to pay creativeness
The various modifications or changes that working can make are still within the scope of the present invention.
Claims (5)
1. a kind of harvester crushing knife conducive to protection cutter head, which is characterized in that including knife plate (1) and cutter head (2), the cutter head
(2) it is made of hard alloy, the upper right corner of the knife plate (1) is equipped with the opening (13) of rectangle, the level of the opening (13)
Section is equipped with the mounting groove (12) of a strip, and the bottom end of the cutter head (2) is equipped with the installation projection (21) of strip, described
Installation projection (21) is set in mounting groove (12), and the length of the cutter head (2) is less than or equal to the length of mounting groove (12), and institute
The right end for stating cutter head (2) is concordant with the right end of knife plate or be set to the left of knife plate right end.
2. a kind of harvester crushing knife conducive to protection cutter head as described in claim 1, which is characterized in that the knife plate be by
Steel plate is made.
3. a kind of harvester crushing knife conducive to protection cutter head as claimed in claim 2, which is characterized in that the knife plate (1)
The lower right corner be removed after form notch (14), the high a of the notch (14) is the 1/2 to 1/4 of knife plate (1) high b, the notch
(14) long c is equal with the opening long d of (13).
4. a kind of harvester crushing knife conducive to protection cutter head as described in claim 1, which is characterized in that the cutter head (2)
It is fixed on knife plate (1) by welding.
5. a kind of harvester crushing knife conducive to protection cutter head as described in claim 1, which is characterized in that the knife plate (1)
On be provided with mounting hole (11), the left end of knife plate is arranged in the mounting hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936609.3U CN208338291U (en) | 2018-06-15 | 2018-06-15 | A kind of harvester crushing knife conducive to protection cutter head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820936609.3U CN208338291U (en) | 2018-06-15 | 2018-06-15 | A kind of harvester crushing knife conducive to protection cutter head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208338291U true CN208338291U (en) | 2019-01-08 |
Family
ID=64883614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820936609.3U Active CN208338291U (en) | 2018-06-15 | 2018-06-15 | A kind of harvester crushing knife conducive to protection cutter head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208338291U (en) |
-
2018
- 2018-06-15 CN CN201820936609.3U patent/CN208338291U/en active Active
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