CN117581703A - Double-acting knife cutter of harvester - Google Patents
Double-acting knife cutter of harvester Download PDFInfo
- Publication number
- CN117581703A CN117581703A CN202311819289.5A CN202311819289A CN117581703A CN 117581703 A CN117581703 A CN 117581703A CN 202311819289 A CN202311819289 A CN 202311819289A CN 117581703 A CN117581703 A CN 117581703A
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- CN
- China
- Prior art keywords
- cutter
- double
- combination
- auger
- acting
- 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.)
- Pending
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 40
- 230000005540 biological transmission Effects 0.000 claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000003825 pressing Methods 0.000 claims description 12
- 230000001012 protector Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 4
- 235000013339 cereals Nutrition 0.000 description 9
- 238000003306 harvesting Methods 0.000 description 7
- 241001124569 Lycaenidae Species 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 240000007594 Oryza sativa Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 241000209140 Triticum Species 0.000 description 2
- 235000021307 Triticum Nutrition 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 239000010902 straw Substances 0.000 description 2
- 241000251169 Alopias vulpinus Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 206010035148 Plague Diseases 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
- A01D41/14—Mowing tables
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/13—Cutting apparatus
- A01D34/135—Cutting apparatus having oppositely movable cooperating knife-bars
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/13—Cutting apparatus
- A01D34/14—Knife-bars
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/13—Cutting apparatus
- A01D34/17—Holding-down devices for the knife
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/13—Cutting apparatus
- A01D34/18—Guard fingers; Ledger-plates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/30—Driving mechanisms for the cutters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
- A01D34/02—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having reciprocating cutters
- A01D34/30—Driving mechanisms for the cutters
- A01D34/32—Connecting-rods for knife-driving mechanisms
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Harvester Elements (AREA)
Abstract
The invention provides a double-acting cutter of a harvester, which comprises a cutting table body, wherein a driving mechanism is arranged at the front end of the cutting table body, and a double-acting cutter combination is arranged at the forefront side of the cutting table body; the double-acting cutter combination comprises an upper movable cutter bar assembly and a lower movable cutter bar assembly, and blades of the upper movable cutter bar assembly and the lower movable cutter bar assembly are assembled in a pasting mode; the driving mechanism comprises an auger driving shaft, a left driving connecting rod, a right driving connecting rod and a right transmission shaft bearing seat combination. The double-acting cutters move oppositely or oppositely at the same time, so that the impulses can be mutually offset, and the vibration is reduced; the structure is simple and reliable, the occupied space is small, and the practicability is strong; the single-side transmission is changed into double-side transmission, so that the moving knife is balanced in motion, resonance phenomenon with other moving parts of the whole machine is avoided, the use experience and service life of the product are affected, and space and cost are saved; the upper cutter bar assembly and the lower cutter bar assembly are arranged at the overlapped position, so that the reliability is higher.
Description
Technical Field
The invention relates to the field of harvesters, in particular to a double-acting knife cutter of a harvester.
Background
The harvester is a machine for harvesting crops integrally. Harvesting and threshing are completed once, grains are concentrated in a storage bin, then the grains are conveyed to a transport vehicle through a conveyor belt, or alternatively, the grains can be harvested manually, straw of crops such as rice, wheat and the like is laid in the field, and then the grains are picked up and threshed by a grain harvesting machine. Crop harvesting machinery for harvesting rice, wheat and other cereal crops and straw. Including harvesters, windrowers, balers, grain combine harvesters, grain thresher, and the like. Grain harvesting machines have evolved on the basis of various harvesting and threshing tools.
Most of cutting devices on a harvester are reciprocating, and a movable blade is utilized to make reciprocating shearing motion relative to a fixed blade of a blade protector so as to shear a grass plant. Meanwhile, resonance phenomenon can be generated with other moving parts of the whole machine, and the use experience and service life of the product are affected. Balancing the motion of the moving knife belongs to industry problems which plague many years.
Disclosure of Invention
The present invention aims to provide a double-action knife cutter of a harvester which overcomes or at least partially solves the above-mentioned problems.
In order to achieve the above purpose, the technical scheme of the invention is specifically realized as follows:
the invention provides a double-acting cutter of a harvester, which comprises a cutting table body, wherein a driving mechanism is arranged at the front end of the cutting table body, and a double-acting cutter combination is arranged at the forefront side of the cutting table body;
the double-acting cutter combination comprises an upper movable cutter bar assembly and a lower movable cutter bar assembly, and blades of the upper movable cutter bar assembly and the lower movable cutter bar assembly are assembled in a pasting mode;
the driving mechanism comprises an auger driving shaft, a left driving connecting rod, a right transmission shaft bearing seat combination, an eccentric crank combination, a cutting table auger, an auger driving shaft chain wheel, a triangular rocker arm, an auger eccentric adjusting shaft chain wheel and a right cutter driving device chain wheel, wherein the auger driving shaft is arranged in the front end of the cutting table body, the cutting table auger is arranged on the outer wall of the auger driving shaft, the left driving connecting rod is arranged on the left side of the cutting table body, the right driving connecting rod is arranged on the right side of the cutting table body, the eccentric crank combination is arranged at one side of the cutting table body and at one ends of the left driving connecting rod and the right driving connecting rod, the eccentric crank combination is in transmission connection with one end of the left driving connecting rod, the other end of the left driving connecting rod is connected with one end of the triangular rocker arm combination and the upper moving cutter bar through a joint bearing, one end of the auger driving shaft is connected with an auger driving shaft sprocket, the sprocket is connected with the auger driving shaft sprocket through chain transmission in the eccentric crank combination, the other end of the auger driving shaft is connected with the right transmission shaft bearing combination, an auger eccentric adjusting shaft sprocket is installed on the right transmission shaft bearing combination, a right cutter driving device sprocket is installed in the eccentric crank combination at one end of the right driving connecting rod, the auger eccentric adjusting shaft sprocket is connected with the right cutter driving device sprocket through chain transmission, and the other end of the right driving connecting rod is connected with one end of the triangular rocker arm combination and the lower moving cutter bar through the joint bearing.
As a further scheme of the invention, the upper knife bar assembly is provided with an upper knife guard, and the lower knife bar assembly is provided with a lower knife guard.
As a further scheme of the invention, two backing plates and two friction plates are arranged between one ends of the upper edge protector and the lower edge protector, and the backing plates and the friction plates are alternately arranged.
As a further scheme of the invention, the upper edge protector, the lower edge protector, the two backing plates and the two friction plates are connected through fixing bolts, nuts and elastic pads.
As a further scheme of the invention, the upper cutter bar and the lower movable cutter bar are fixed in the middle of the pressing plate, and the upper cutter bar and the lower cutter bar are limited in the middle of the cutter pressing device through the cutter pressing device, so that the cutter bar can slide in the cutter pressing device to realize cutting action.
As a further aspect of the present invention, the eccentric crank assembly is driven by a drive shaft.
As a further scheme of the invention, the right transmission shaft bearing seat combination is provided with a bearing seat weld, and a rolling bearing is arranged between the bearing seat weld and the right transmission shaft bearing seat combination.
The invention provides a double-acting knife cutter of a harvester, which has the beneficial effects that:
1. when the device works, the driving shaft rotates to drive the eccentric crank combination, the eccentric crank can drive the left driving connecting rod to move, and the left driving connecting rod is connected with the triangular rocker arm combination through the joint bearing to drive the upper moving cutter bar to reciprocate left and right; the chain wheel in the eccentric crank combination can synchronously drive the screw feeder driving shaft chain wheel, the screw feeder driving shaft is driven, the screw feeder eccentric adjusting shaft chain wheel is driven by the right transmission shaft bearing combination, and the right cutter driving device chain wheel is driven by the eccentric adjusting shaft chain wheel, so that the right driving connecting rod is driven to be connected with the right triangle rocker arm combination, and the lower cutter bar is driven to reciprocate left and right, so that cutting is realized. When the upper moving cutter bar and the lower moving cutter bar do reciprocating motion, the impact load of the reciprocating motion of the moving cutter bar can be counteracted, and the cutter has a protective effect on each part and the cutting table of the cutter.
2. The double-acting cutters move simultaneously, so that impulse can be mutually offset, and vibration is reduced; the structure is simple and reliable, the occupied space is small, and the practicability is strong; the novel eccentric connecting rod drives one triangular rocker arm structure and drives the other triangular rocker arm structure through the transmission of the auger driving shaft, single-side transmission is changed into double-side transmission, so that the moving knife is balanced in motion, resonance phenomenon with other moving parts of the whole machine is avoided, the use experience and service life of a product are influenced, and space and cost are saved.
3. The upper knife guard and the lower knife guard are arranged at the overlapping positions of the upper knife bar assembly and the lower knife bar assembly, so that the reliability is higher, the upper knife bar and the lower knife bar are fixed in the middle of the pressing plate, and the upper knife bar and the lower knife bar are limited in the middle of the knife pressing device through the knife pressing device, so that the movable knife bar can slide in the knife pressing device, and cutting action is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall side view of the present invention.
Fig. 2 is a schematic top view of the whole structure of the present invention.
FIG. 3 is a schematic view of the partial structure of FIG. 2 according to the present invention.
Fig. 4 is a schematic diagram of the structure of fig. 3B according to the present invention.
FIG. 5 is a schematic diagram of the structure of FIG. 3 at A-A in accordance with the present invention.
Fig. 6 is a schematic view of a double-acting knife combination structure in the invention.
FIG. 7 is a schematic view of the structure of FIG. 6 at C according to the present invention.
In the figure: 1. cutting the table body; 2. a left drive link; 3. a right drive link; 4. cutting table auger; 5. double-acting knife combination; 6. eccentric crank combination; 7. an auger driving shaft sprocket; 8. an auger driving shaft; 9. a right transmission shaft bearing assembly; 10. screw eccentric adjusting shaft sprocket; 11. a right cutter driving device sprocket; 12. an upper movable cutter bar assembly; 13. a lower movable cutter bar assembly; 14. an upper edge protector; 15. a lower guard; 16. a backing plate; 17. a friction plate; 18. a fixing bolt; 19. a nut; 20. a spring pad; 21. welding a bearing seat; 22. a rolling bearing; 23. triangular rocker arms.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Referring to fig. 1-7, the double-acting cutter of a harvester provided by the embodiment of the invention comprises a cutting table body 1, wherein a driving mechanism is arranged at the front end of the cutting table body 1, and a double-acting cutter combination 5 is arranged at the forefront side of the cutting table body 1;
the double-acting cutter combination 5 comprises an upper movable cutter bar assembly 12 and a lower movable cutter bar assembly 13, and blades of the upper movable cutter bar assembly 12 and the lower movable cutter bar assembly 13 are assembled in a pasting manner;
the driving mechanism comprises an auger driving shaft 8, a left driving connecting rod 2, a right driving connecting rod 3, a right transmission shaft bearing seat combination 9, an eccentric crank combination 6, a cutting table auger 4, an auger driving shaft chain wheel 7, a triangular rocker arm 23, an auger eccentric adjusting shaft chain wheel 10 and a right cutter driving device chain wheel 11, wherein the auger driving shaft 8 is installed in the front end of the cutting table body 1, the cutting table auger 4 is installed on the outer wall of the auger driving shaft 8, the left driving connecting rod 2 is installed on the left side of the cutting table body 1, the right driving connecting rod 3 is installed on the right side of the cutting table body 1, one side of the cutting table body 1 is provided with the eccentric crank combination 6, the eccentric crank combination 6 is in transmission connection with one end of the left driving connecting rod 2, the other end of the left driving connecting rod 2 is in transmission connection with one end of the triangular rocker arm 23 through a joint bearing, one end of the upper cutter bar is connected with the auger driving shaft 8, the other end of the auger driving shaft 8 is connected with the right transmission shaft combination 9 through a chain transmission, the eccentric crank combination 6 is installed on the right transmission shaft combination 9, the eccentric crank adjusting shaft 10 is connected with the right driving shaft chain wheel 3 through a chain wheel 11, and the eccentric crank device is connected with one end of the right driving device of the right cutter bar 11 through the eccentric rocker arm 3.
As shown in fig. 3, the eccentric crank assembly 6 is driven by a drive shaft.
In the use process, the eccentric crank combination 6 is driven by the rotation of the driving shaft during the operation, the eccentric crank can drive the left driving connecting rod 2 to move, the left driving connecting rod 2 is connected with the triangular rocker arm 23 through the joint bearing combination to drive the upper moving cutter bar to reciprocate left and right; the chain wheel in the eccentric crank combination 6 can synchronously drive the screw feeder driving shaft chain wheel 7, the screw feeder driving shaft 8 is used for transmission, the right transmission shaft bearing combination 9 is used for driving the screw feeder eccentric adjusting shaft chain wheel 10, and the eccentric adjusting shaft chain wheel is used for driving the right cutter driving device chain wheel 11, so that the right driving connecting rod 3 is driven to be connected with the right triangle rocker arm 23 in a combined way, and the lower cutter bar is driven to reciprocate left and right, so that cutting is realized. When the upper moving cutter bar and the lower moving cutter bar do reciprocating motion, the impact load of the reciprocating motion of the moving cutter bar can be counteracted, and the cutter bar has a protective effect on each part and the cutting table of the cutter;
the double-acting cutters move simultaneously, so that impulse can be mutually offset, and vibration is reduced; the structure is simple and reliable, the occupied space is small, and the practicability is strong; the novel eccentric connecting rod is adopted to drive one triangular rocker arm 23 structure and drive the other triangular rocker arm 23 structure through the transmission of the screw feeder driving shaft 8, single-side transmission is changed into double-side transmission, so that the moving knife is balanced in motion, resonance phenomenon with other moving parts of the whole machine is avoided, the use experience and service life of a product are influenced, and space and cost are saved.
As shown in fig. 5, the upper knife bar assembly 12 is provided with the upper knife guard 14, the lower knife bar assembly 13 is provided with the lower knife guard 15, the upper knife guard 14 and the lower knife guard 15 are arranged at the overlapping position of the upper knife bar assembly 12 and the lower knife bar assembly 13, so that the reliability is higher, two backing plates 16 and two friction plates 17 are arranged between one ends of the upper knife guard 14 and the lower knife guard 15, the backing plates 16 and the friction plates 17 are alternately arranged, the upper knife guard 14, the lower knife guard 15, the two backing plates 16 and the two friction plates 17 are connected through a fixing bolt 18, a nut 19 and a spring pad 20, the upper knife bar and the lower knife bar are fixed in the middle of a pressing plate, and the upper knife bar and the lower knife bar are limited in the middle of the knife presser through the knife presser, so that the cutting action can be realized by sliding the upper knife bar and the lower knife bar in the knife presser.
As shown in fig. 4, a bearing seat welding 21 is installed on the right transmission shaft bearing seat combination 9, a rolling bearing 22 is arranged between the bearing seat welding 21 and the right transmission shaft bearing seat combination 9, and the screw feeder eccentric adjusting shaft sprocket 10 is driven by the right transmission shaft bearing seat combination 9.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.
Claims (7)
1. The double-acting cutter of the harvester comprises a cutting table body (1) and is characterized in that a driving mechanism is arranged at the front end of the cutting table body (1), and a double-acting cutter combination (5) is arranged at the forefront side of the cutting table body (1);
the double-acting cutter combination (5) comprises an upper movable cutter bar assembly (12) and a lower movable cutter bar assembly (13), and blades of the upper movable cutter bar assembly (12) and the lower movable cutter bar assembly (13) are assembled in a pasting mode;
the driving mechanism comprises an auger driving shaft (8), a left driving connecting rod (2), a right driving connecting rod (3), a right transmission bearing seat combination (9), an eccentric crank combination (6), a cutting table auger (4), an auger driving shaft chain wheel (7), a triangular rocker arm (23), an auger eccentric adjusting shaft chain wheel (10) and a right cutter driving device chain wheel (11), wherein the auger driving shaft (8) is arranged in the front end of the cutting table body (1), the cutting table auger (4) is arranged on the outer wall of the auger driving shaft (8), the left driving connecting rod (2) is arranged on the left side of the cutting table body (1), the right driving connecting rod (3) is arranged on the right side of the cutting table body (1), one end of the cutting table body (1) which is positioned on one side of the left driving connecting rod (2) and one end of the right driving connecting rod (3) is provided with the eccentric crank combination (6), the other end of the left driving connecting rod (2) is in transmission connection with one end of the triangular rocker arm (23) through a joint bearing, one end of the eccentric crank combination (6) is connected with one end of the auger driving shaft (7) through the chain wheel (7), the novel automatic cutter driving device is characterized in that the other end of the auger driving shaft (8) is connected with a right transmission bearing seat combination (9), an auger eccentric adjusting shaft chain wheel (10) is arranged on the right transmission bearing seat combination (9), a right cutter driving device chain wheel (11) is arranged in an eccentric crank combination (6) at one end of the right driving connecting rod (3), the auger eccentric adjusting shaft chain wheel (10) is connected with the right cutter driving device chain wheel (11) through chain transmission, and the other end of the right driving connecting rod (3) is connected with one end of a lower cutter bar through a joint bearing and a triangular rocker arm (23) combination.
2. A double-acting knife cutter of a harvester according to claim 1, characterized in that the upper movable knife bar assembly (12) is provided with an upper knife guard (14) and the lower movable knife bar assembly (13) is provided with a lower knife guard (15).
3. A double-acting knife cutter of a harvester according to claim 2, characterized in that two backing plates (16) and two friction plates (17) are arranged between one ends of the upper and lower edge protectors (14, 15), and that the backing plates (16) and the friction plates (17) are arranged alternately.
4. A double-acting knife cutter of a harvester according to claim 3, characterized in that the upper guard (14), the lower guard (15), the two backing plates (16) and the two friction plates (17) are connected by means of a fixing bolt (18), a nut (19) and a spring washer (20).
5. The double-acting knife cutter of a harvester according to claim 4, wherein the upper moving knife bar and the lower moving knife bar are fixed in the middle of the pressing plate, and the upper moving knife bar and the lower moving knife bar are limited in the middle of the knife pressing device through the knife pressing device.
6. A double-acting knife cutter of a harvester according to claim 1, characterized in that the eccentric crank combination (6) is driven by a drive shaft.
7. The double-acting knife cutter of a harvester according to claim 1, wherein a bearing seat weld (21) is mounted on the right transmission bearing seat combination (9), and a rolling bearing (22) is arranged between the bearing seat weld (21) and the right transmission bearing seat combination (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311819289.5A CN117581703A (en) | 2023-12-27 | 2023-12-27 | Double-acting knife cutter of harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311819289.5A CN117581703A (en) | 2023-12-27 | 2023-12-27 | Double-acting knife cutter of harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117581703A true CN117581703A (en) | 2024-02-23 |
Family
ID=89913441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311819289.5A Pending CN117581703A (en) | 2023-12-27 | 2023-12-27 | Double-acting knife cutter of harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117581703A (en) |
-
2023
- 2023-12-27 CN CN202311819289.5A patent/CN117581703A/en active Pending
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