CN203505057U - Harvesting cutter for small harvester - Google Patents
Harvesting cutter for small harvester Download PDFInfo
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- CN203505057U CN203505057U CN201320651095.4U CN201320651095U CN203505057U CN 203505057 U CN203505057 U CN 203505057U CN 201320651095 U CN201320651095 U CN 201320651095U CN 203505057 U CN203505057 U CN 203505057U
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- knife
- moving
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- cutter
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Abstract
The utility model discloses a harvesting cutter for a small harvester with a large space between teeth; when the harvesting cutter is used for harvesting rice, a plurality of straws enter tooth blades and are incapable of extruding and slipping out of the harvesting cutter to cause miss harvesting. The harvesting cutter for the small harvester comprises a fixed cutter and a movable cutter which is folded on the fixed cutter and is capable of moving back and forth along with the fixed cutter, wherein opposite sides of the fixed cutter and the movable cutter are contacted in a sliding manner; fixed tooth blades and movable tooth blades are arranged on the fixed cutter and the movable cutter; a space between teeth of the fixed tooth blades are equal to a space between teeth of the movable tooth blades; the space between teeth is not less than width of a tooth root of one fixed tooth blade or one movable tooth blade; isosceles triangle guide tips are arranged on the front parts of the fixed tooth blades; isosceles triangle harvesting cutters are arranged on rear parts of the fixed tooth blades; bottom sides of the guide tips are a litter larger than the upper bottom side of the isosceles triangle; the structure and the size of the movable cutter are the same as that of the harvesting cutter; the fixed tooth blades and the movable tooth blades are small in density, large in space between teeth and capable of holding more straws during harvesting and increasing the harvesting speed; further improvement of the harvesting cutter for the small harvester is characterized in that fixed and movable side teeth are arranged on the fixed and movable tooth blades; and the harvesting cutter for the small harvester is capable of puncturing the straws easily and effectively reducing cutting resistance.
Description
Technical field
The utility model relates to a kind of parts of family expenses grain header, the cropping knife that particularly a kind of small harvester is used.
Background technology
Along with improving constantly of farmers' income, the home penetration rate of farm machinery is more and more higher, in a lot of knobs of China, whenever the agriculture time receiving, the small harvesters that use more, conventionally on small harvester, two cropping knifes are installed, one is placed in and on grain header, approaches paddy bar root position, another is arranged on and on grain header, approaches paddy fringe root position, conventionally, cropping knife consists of the stationary knife and the overlapping moving knife that is placed in stationary knife top that are fixed in grain header frame, front side on stationary knife and moving knife is provided with jagged serrated knife, the drive unit of moving knife and cropping knife joins and under the drive of drive unit, along stationary knife length direction and stationary knife, make relative linear reciprocating motion, thus, the straw and the paddy fringe that enter in stationary knife and moving knife serrated knife are cut down.
Nowadays, the small harvester cropping knife used of selling on the market, sawtooth density on serrated knife is higher, most is that adjacent sawtooth is that the mode of joining with tooth root arranges, like this, space between adjacent sawtooth is too little, the straw radical holding is less, during single cut, cutting efficiency is lower, each sawtooth is sharp-pointed triangle in addition, when fixed, during the staggered cutting of moving knife, sawtooth on stationary knife and the staggered movement of the sawtooth on moving knife, part can have been entered to sawtooth and the straw extruding accumulation between the space of the formation of the sawtooth on moving knife on stationary knife or skid off this cropping knife, accumulation meeting damages because resistance causes greatly sawtooth, and skid off cropping knife, will reduce cutting efficiency.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of cropping knife of larger space width of small harvester use, this cropping knife is when harvesting paddy, the straw holding between serrated knife is many, during cutting, enters straw between serrated knife and can squeezedly not skid off cropping knife and leak and cut.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
The cropping knife that small harvester of the present utility model is used, comprising stationary knife and be stacked in also can be along the reciprocating moving knife of stationary knife length direction on stationary knife, stationary knife and the sliding-contact of moving knife opposite face, on stationary knife and moving knife, be equipped with tooth portion and tool arm, described in each, tooth portion is provided with at least two side by side and determines serrated knife or moving serrated knife perpendicular to tool arm, it is characterized in that: describedly determine the space width of serrated knife and the space width of moving serrated knife equates, this space width is not less than a tooth root width of determining serrated knife or moving serrated knife, the guidance tip that described front portion of determining serrated knife is isosceles triangle, its rear portion is the cutter of isosceles trapezoid, the base of guidance tip is slightly larger than the upper base of described isosceles trapezoid, described moving knife structure is identical with described cutter with size.
At the phase back side of determining serrated knife and moving serrated knife, be equipped with reinforcement.
In described both sides of determining serrated knife and moving serrated knife cutter, be equipped with stretch out, structure is identical and be zigzag fixed other tooth and moving other tooth, the opposite face sliding-contact of fixed other tooth and moving other tooth.
The mode that every adjacent two described fixed other teeth or moving other tooth join with tooth root is set up in parallel.
When determining serrated knife and moving serrated knife when overlapping, described fixed other tooth is crisscross arranged with moving other tooth.
On described fixed other tooth and the moving other tooth phase back side, be provided with reinforcement.
At described fixed other tooth, be provided with sharp beveled edge with the both sides of moving other tooth.
On the opposite face of described stationary knife tool arm and moving knife tool arm, be provided with gliding movement targeting structure.
Described gliding movement targeting structure be arranged on direction recess on moving knife tool arm and be arranged on stationary knife tool arm can be in described direction recess the guide rail of adaptive oriented sliding.
Described guide rail cross sectional shape is triangle, semicircle or trapezoidal.
The utility model reduces the density of determining serrated knife and moving serrated knife setting on cropping knife, and space width is strengthened, and during harvesting, its open ended straw increases, and can improve harvesting speed.The utility model is determining that guidance tip is set on serrated knife, its not only bootable straw enter smoothly cutting area, also can prevent that the straw that has entered cutting area from skidding off cropping knife when cutting extruding.Further improvement of the utility model is to determine that fixed other tooth and moving other tooth are set respectively on serrated knife and moving serrated knife, the crown of fixed other tooth and moving other tooth is before cutting, can easily straw be punctured, effectively reduce Cutting Drag, meanwhile, also can prevent that straw from reducing cutting efficiency cut because extruding produces to pile up.The utility model arranges reinforcement at the back side of determining serrated knife and moving serrated knife can effectively improve its intensity, avoids its damage.The utility model arranges guide frame between stationary knife and moving knife, in the time of can effectively preventing from cutting, crosses ambassador's stationary knife produce the cutting efficiency reduction that distortion causes with moving knife coordinating on horizontal plane because of resistance.
Accompanying drawing explanation
Fig. 1 is the utility model cropping knife schematic perspective view.
Fig. 2 is rear view of determining serrated knife embodiment 1 of the present utility model.
Fig. 3 determines serrated knife front view in Fig. 2.
Fig. 4 is the rear view of the moving serrated knife corresponding with determining serrated knife in Fig. 2.
Fig. 5 is the moving serrated knife front view in Fig. 4.
Fig. 6 is the front view of determining serrated knife embodiment 2 of the present utility model.
Fig. 7 is the front view of the moving serrated knife corresponding with determining serrated knife in Fig. 6.
Fig. 8 is the B portion zoomed-in view in Fig. 6.
Fig. 9 is the C portion zoomed-in view in Fig. 7.
Figure 10 is the A portion zoomed-in view in Fig. 1.
Figure 11 is the front view of determining serrated knife embodiment 3 of the present utility model.
Figure 12 determines the front view of the moving serrated knife that serrated knife is corresponding in Figure 11.
Figure 13 is the front view of determining serrated knife embodiment 4 of the present utility model.
Figure 14 determines the front view of the moving serrated knife that serrated knife is corresponding in Figure 13.
Reference numeral:
Embodiment
Below the utility model is elaborated.
The cropping knife that small harvester of the present utility model is used, can be installed on the upper and lower of grain header frame front end, is mainly used in cutting root or the paddy fringe head (this paddy comprises paddy and wheat, paddy) of paddy straw.
As Fig. 1, 2, shown in 4, cropping knife of the present utility model comprises the stationary knife 1 of elongated rectangular shape, moving knife 2 and drive unit form, stationary knife 1 is fixed in grain header frame, moving knife 2 is overlapping to be placed on stationary knife 1, moving knife 2 is connected with drive unit and under the driving of drive unit, along stationary knife 1 length direction and stationary knife 1, do relatively reciprocating motion, (the front of weighed cutter 1 and moving knife 2 again, the surface that stationary knife 1 is relative with moving knife 2, the opposing surface of stationary knife 1 and moving knife 2 is called the back side, lower same) sliding-contact, at stationary knife 1 and moving knife 2, by tooth portion 3 and tool arm 4, form, tooth portion 3 is placed in the front side of stationary knife 1 or moving knife 2, tool arm 4 is connected as a single entity as the trunk of stationary knife 1 and moving knife 2 with tooth portion 3, on the front of stationary knife 1 tool arm 4 and moving knife 2 tool arms 4, be provided with gliding movement targeting structure, this gliding movement targeting structure is be arranged on the rectilinear direction recess 6 on moving knife 2 tool arms 4 and be arranged on rectilinear guide rail 5 (shown in Fig. 1 and Figure 10) on stationary knife 1 tool arm 4, guide rail 5 is identical with the cross sectional shape of direction recess 6, its size is adaptive, guide rail 5 is placed in direction recess 6 and slidably moves, guide rail 5 cross sectional shapes can be triangle, semicircle or trapezoidal, when this structure can guarantee that moving knife 2 and stationary knife 1 relatively move (rectilinear motion of doing while cutting paddy), moving knife 2 does not produce distortion with stationary knife 1 on horizontal plane.
Described tooth portion 3 on stationary knife 1 and moving knife 2 is all provided with a plurality of sawtooth perpendicular to tool arm 4 side by side, each sawtooth is a cutter, be called and determine serrated knife 11 or moving serrated knife 21, the dual-side of determining serrated knife 11 and moving serrated knife 21 is sharp blade 7, on stationary knife 1, every adjacent two space widths of determining between serrated knife 11 equate with the space width between every adjacent two moving serrated knives 21 on moving knife 2, this space width is not less than a tooth root width of determining serrated knife 11 or moving serrated knife 21, is preferably the tooth root width described in 1.5.
In described front portion of determining serrated knife 11, be provided with the guidance tip 12 that is isosceles triangle, its rear portion is the cutter of isosceles trapezoid, the base of guidance tip 12 isosceles triangles is slightly wider than the upper base of cutter isosceles trapezoid, and described moving knife 2 structures are identical with the cutter of determining serrated knife 11 with size.The effect of this structure is: the paddy straw in guidance tip 12 guiding grain header the place aheads enters cutting area (being every two gaps of determining between serrated knife 11) smoothly, and when the straw that enters cutting area at moving 21 pairs of serrated knives cuts, because the base of guidance tip 12 isosceles triangles is wider than the upper base of cutter isosceles trapezoid, therefore, its straw that can prevent from having entered cutting area, at moving serrated knife 21 with when determining serrated knife 11 and relatively moving, is extruded and skids off this cutting area.
In order to improve the mechanical strength of stationary knife 1 and moving knife 2, avoid when harvesting even touch hard object damage, be equipped with reinforcement 8 determining the opposing surface of serrated knife 11 and moving serrated knife 21 (back side of weighed serrated knife 11 and moving serrated knife 21 again).
As shown in Fig. 2,3,4,5, described to determine serrated knife 11 and moving serrated knife 21 both sides sharp blade 7 be ramp type blade 7.In this embodiment, determine serrated knife 11 and moving serrated knife 21, easy to process, manufacturing cost is lower.
As shown in Fig. 6,7,8,9, describedly determine the sharp blade 7 of serrated knife 11 and moving serrated knife 21 both sides and be respectively a plurality of fixed other teeth 13 that are set up in parallel and moving other tooth 22, fixed other tooth 13 and moving other tooth 22 sizes, shape are identical with structure, all to determining serrated knife 11 or moving serrated knife 21 extensions, fixed other tooth 13 and the opposite face sliding-contact of moving other tooth 22, front of each fixed other tooth 13 is positioned at same plane with the front of determine serrated knife 11, same, the front of moving side tooth 22 also with the front of moving serrated knife 21 in same level.
Arranging of fixed other tooth 13 and moving other tooth 22 is identical, set-up mode is: the mode that every adjacent two fixed other teeth 13 or moving other tooth 22 join with tooth root is set up in parallel, the quantity arranging establishes 10-20 fixed other tooth 13 with every side or moving other tooth 22 is advisable, preferably 15, the space width of adjacent fixed other tooth 13 is at 2mm-8mm, preferably 5mm.
Determine other tooth 13 sequentially different with arranging of moving other tooth 22, when determining serrated knife 11 when overlapping with moving serrated knife 21, fixed other tooth 13 is crisscross arranged with moving other tooth 22, fixed other tooth 13 shifts to install with moving other tooth 22, preferably the crown of fixed other tooth 13 is in a straight line with the tooth root phase contact of two moving other teeth 22, equally, the tooth root phase contact of two fixed other teeth 13 is in a straight line with the crown of moving other tooth 22.
In order to improve the mechanical strength of fixed other tooth 13 and moving other tooth 22, avoid even touch hard object when harvesting to damage, at the back side of fixed other tooth 13 and moving other tooth 22, reinforcement 8 is set.
In order to improve the cutting power of fixed other tooth 13 and moving other tooth 22, fixed other tooth 13 can be processed into the inclined-plane with sharp knife edges 7 with the two sides of moving other tooth 22.
The present embodiment tool has the following advantages:
1) when moving serrated knife 21 moving linearlies are to before entering the straw of cutting area and cutting, the crown of fixed other tooth 13 and moving other tooth 22 first punctures straw, the air being stored in straw discharged, thereby, can reduce the Cutting Drag of moving serrated knife 21, improve its cutting efficiency and extend its service life.
2) enter the straw of cutting area, when moving serrated knife 21 cuts it, effect due to fixed other tooth 13 and moving other tooth 22, these straw many places are in the between cog of fixed other tooth 13 or the between cog of moving other tooth 22, therefore, it can not slide because being extruded on serrated knife 11 length directions determining, like this, both can avoid producing because sliding straw accumulation and cause the damage of determining serrated knife 11 or moving serrated knife 21, and also can avoid the straw that enters cutting area to reduce harvesting efficiency because skidding off cropping knife.
The present embodiment also can with embodiment 1 cross-reference, one of them is made into the structure of determining serrated knife 11 or moving serrated knife 21 in embodiment 1 soon to determine serrated knife 11 and moving serrated knife 21, by the moving serrated knife 21 of remainder or determine the structure that the structure fabrication cost of serrated knife 11 is implemented.
As shown in Figure 11,12, the present embodiment is substantially the same manner as Example 2, only described fixed other tooth 13 and moving other tooth 22 shapes and embodiment 2 are different, the fixed other tooth 13 of the present embodiment and moving other tooth 22 are except having the function identical with moving other tooth 22 with fixed other tooth 13 in embodiment 2, it is aspect making processing, easy compared with embodiment 2, so it can reduce manufacturing cost.
As shown in Figure 13,14, the present embodiment is substantially the same manner as Example 3, only described fixed other tooth 13 and moving other tooth 22 shapes and embodiment 3 are different, the fixed other tooth 13 of the present embodiment and moving other tooth 22 are except having the function identical with moving other tooth 22 with fixed other tooth 13 in embodiment 3, it is aspect making processing, easier again compared with embodiment 3, only need can complete with common milling machine processing, so it also can reduce manufacturing cost.
Claims (10)
1. the cropping knife that a small harvester is used, comprising stationary knife (1) and be stacked in also can be along the reciprocating moving knife (2) of stationary knife (1) length direction on stationary knife (1), stationary knife (1) and moving knife (2) opposite face sliding-contact, on stationary knife (1) and moving knife (2), be equipped with tooth portion (3) and tool arm (4), described in each, tooth portion (3) is provided with at least two side by side and determines serrated knife (11) or moving serrated knife (21) perpendicular to tool arm (4), it is characterized in that: the described space width of determining serrated knife (11) equates with the space width of moving serrated knife (21), this space width is not less than a tooth root width of determining serrated knife (11) or moving serrated knife (21), the guidance tip (12) that described front portion of determining serrated knife (11) is isosceles triangle, its rear portion is the cutter of isosceles trapezoid, the base of guidance tip (12) is slightly larger than the upper base of described isosceles trapezoid, described moving knife (2) structure is identical with described cutter with size.
2. the cropping knife that small harvester according to claim 1 is used, is characterized in that: at the phase back side of determining serrated knife (11) and moving serrated knife (21), be equipped with reinforcement (8).
3. the cropping knife that small harvester according to claim 1 is used, it is characterized in that: in described both sides of determining serrated knife (11) and moving serrated knife (21) cutter, be equipped with stretch out, structure is identical and be zigzag fixed other tooth (13) and moving other tooth (22), the opposite face sliding-contact of fixed other tooth (13) and moving side tooth (22).
4. the cropping knife that small harvester according to claim 3 is used, is characterized in that: the mode that every adjacent two described fixed other teeth (13) or moving other tooth (22) join with tooth root is set up in parallel.
5. the cropping knife that small harvester according to claim 4 is used, is characterized in that: when determining serrated knife (11) when overlapping with moving serrated knife (21), described fixed other tooth (13) is crisscross arranged with moving other tooth (22).
6. the cropping knife using according to small harvester described in any one in claim 3-5, is characterized in that: on described fixed other tooth (13) and tooth (22) the phase back side, moving side, be provided with reinforcement (8).
7. the cropping knife that small harvester according to claim 6 is used, is characterized in that: in described fixed other tooth (13) and the both sides of moving other tooth (22), be provided with sharp beveled edge (7).
8. the cropping knife that small harvester according to claim 7 is used, is characterized in that: on the opposite face of described stationary knife (1) tool arm (4) and moving knife (2) tool arm (4), be provided with gliding movement targeting structure.
9. the cropping knife that small harvester according to claim 8 is used, is characterized in that: described gliding movement targeting structure for be arranged on the direction recess (6) on moving knife (2) tool arm (4) and be arranged on stationary knife (1) tool arm (4) can be in described direction recess (6) guide rail (5) of adaptive oriented sliding.
10. the cropping knife that small harvester according to claim 9 is used, is characterized in that: described guide rail (5) cross sectional shape is triangle, semicircle or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651095.4U CN203505057U (en) | 2013-10-12 | 2013-10-12 | Harvesting cutter for small harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651095.4U CN203505057U (en) | 2013-10-12 | 2013-10-12 | Harvesting cutter for small harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203505057U true CN203505057U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651095.4U Expired - Fee Related CN203505057U (en) | 2013-10-12 | 2013-10-12 | Harvesting cutter for small harvester |
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| Country | Link |
|---|---|
| CN (1) | CN203505057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103563542A (en) * | 2013-10-12 | 2014-02-12 | 李小波 | Harvesting cutter for small-scale harvester |
| CN106471991A (en) * | 2015-08-31 | 2017-03-08 | 广西大学 | A kind of Oryza glutinosa harvesting device |
-
2013
- 2013-10-12 CN CN201320651095.4U patent/CN203505057U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103563542A (en) * | 2013-10-12 | 2014-02-12 | 李小波 | Harvesting cutter for small-scale harvester |
| CN106471991A (en) * | 2015-08-31 | 2017-03-08 | 广西大学 | A kind of Oryza glutinosa harvesting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20171012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |