CN201022278Y - Straw grinding return-to-field machine special-purpose flail knife - Google Patents
Straw grinding return-to-field machine special-purpose flail knife Download PDFInfo
- Publication number
- CN201022278Y CN201022278Y CNU2007201006104U CN200720100610U CN201022278Y CN 201022278 Y CN201022278 Y CN 201022278Y CN U2007201006104 U CNU2007201006104 U CN U2007201006104U CN 200720100610 U CN200720100610 U CN 200720100610U CN 201022278 Y CN201022278 Y CN 201022278Y
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- CN
- China
- Prior art keywords
- alloy bar
- flail knife
- carbide alloy
- cross
- section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a special throw falchion cutter of straw crushing return field machine, which is characterized in that a hard alloy bar is welded on the edge position of the cutter. The cross section of the hard alloy bar is in the shape of trapezium, square or rectangle, wherein the upper part of the hard alloy bar is smaller than the lower part. The utility model enhances the anti-wear ability greatly and has the advantages of long service life, high efficiency of crushing and energy saving.
Description
Technical field
The utility model relates to the special-purpose flail knife of a kind of straw crushing and field-returning machine, belongs to the parts cutter of agricultural machinery.
Background technology
Chinese patent discloses " a kind of straw crushing and field-returning machine blade ", and (application number: 20040075242.9), flail knife wherein is to be coated with weldering one deck with welding rod to be coated with layer on the outer surface at blade position.Though the wearability of above-mentioned flail knife increases, in actual use, the service life of flail knife is still shorter, and the forward lower comer of flail knife is easily by rounding, thereby flail knife is cut grab the ability of stalk to be affected, and causes crushing effect relatively poor.In addition, be coated with layer and make blade thickening rust, resistance increases during operation, makes power and fuel consume bigger.
Summary of the invention
Technical problem to be solved in the utility model provides that a kind of abrasion-resistance is strong, the special-purpose flail knife of straw crushing and field-returning machine of long service life, good crushing effect, the saving energy.
The technical scheme that its technical problem that solves the utility model adopts:
Design feature of the present utility model is to be welded with the carbide alloy bar at the blade position, the cross section of carbide alloy bar be shaped as trapezoidal or square or rectangular.The cross section of described carbide alloy bar is up-small and down-big.
The beneficial effects of the utility model are to have improved abrasion-resistance greatly, long service life, good crushing effect, energy savings.
Description of drawings
Fig. 1 is the structural representation of embodiment 1 of the present utility model.
Fig. 2 is the structural representation of embodiment 2 of the present utility model.
Fig. 3 is the shaft side figure (shape of cross section is trapezoidal) of carbide alloy bar,
In Fig. 1-3,1. installing hole, 2. cutter hub, 3. carbide alloy bar, 4. cutter hub.
Embodiment
Embodiment 1:
By the embodiment 1 shown in Fig. 1,3 as can be known, it is the flail knife that is provided with angle between a kind of knife edge part and the cutter hub, and being welded with shape of cross section at blade part is trapezoidal carbide alloy bar 3, the cross section of this carbide alloy bar 3 up-small and down-big (seeing Fig. 1,3).
In present embodiment 1, also can adopt cross section is trapezoidal upper and lower equally thick carbide alloy bar.
Embodiment 2:
By the embodiment 2 shown in Fig. 2,3 as can be known, it as different from Example 1 the cutter hub of flail knife be plate shaped.
In present embodiment 2, also can adopt cross section is trapezoidal upper and lower equally thick carbide alloy bar.
Embodiment 3:
Embodiment 3 is that to change the carbide alloy bar in embodiment 1 or 2 into cross sectional shape be rectangular carbide alloy bar, and the cross section of this carbide alloy bar is up-small and down-big.
In present embodiment 3, also can adopt cross sectional shape is rectangular upper and lower equally thick carbide alloy bar.
Embodiment 4:
Embodiment 4 is that to change the carbide alloy bar in embodiment 1 or 2 into shape of cross section be foursquare carbide alloy bar, and the cross section of this carbide alloy bar is up-small and down-big.
In present embodiment 4, also can adopt cross sectional shape is foursquare upper and lower equally thick carbide alloy bar.
Claims (2)
1. the special-purpose flail knife of straw crushing and field-returning machine is characterized in that being welded with the carbide alloy bar at the blade position, the cross section of carbide alloy bar be shaped as trapezoidal or square or rectangular.
2. the special-purpose flail knife of straw crushing and field-returning machine according to claim 1 is characterized in that the cross section of described carbide alloy bar is up-small and down-big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201006104U CN201022278Y (en) | 2007-02-12 | 2007-02-12 | Straw grinding return-to-field machine special-purpose flail knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201006104U CN201022278Y (en) | 2007-02-12 | 2007-02-12 | Straw grinding return-to-field machine special-purpose flail knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201022278Y true CN201022278Y (en) | 2008-02-20 |
Family
ID=39096134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201006104U Expired - Fee Related CN201022278Y (en) | 2007-02-12 | 2007-02-12 | Straw grinding return-to-field machine special-purpose flail knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201022278Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108738650A (en) * | 2018-06-15 | 2018-11-06 | 山东三钻硬质合金有限公司 | A kind of harvester alloy crushing knife |
| CN108934502A (en) * | 2017-05-23 | 2018-12-07 | 包青春 | A kind of chopping wire drawing flail knife |
-
2007
- 2007-02-12 CN CNU2007201006104U patent/CN201022278Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108934502A (en) * | 2017-05-23 | 2018-12-07 | 包青春 | A kind of chopping wire drawing flail knife |
| CN108738650A (en) * | 2018-06-15 | 2018-11-06 | 山东三钻硬质合金有限公司 | A kind of harvester alloy crushing knife |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080220 Termination date: 20100212 |