CN215582664U - V-shaped chopping knife roller and silage harvester - Google Patents
V-shaped chopping knife roller and silage harvester Download PDFInfo
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- CN215582664U CN215582664U CN202122140496.0U CN202122140496U CN215582664U CN 215582664 U CN215582664 U CN 215582664U CN 202122140496 U CN202122140496 U CN 202122140496U CN 215582664 U CN215582664 U CN 215582664U
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/06—Cutting apparatus specially adapted for cutting hay, straw or the like having rotating knives with their cutting edges on a cylinder surface, e.g. of the helical-type
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F29/00—Cutting apparatus specially adapted for cutting hay, straw or the like
- A01F29/09—Details
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Abstract
The utility model discloses a V-shaped chopping knife roller and an ensiling harvester, wherein the knife roller comprises: the device comprises a roller, a left mounting seat, a right mounting seat, a left moving blade and a right moving blade; the left moving blade and the right moving blade of the V-shaped chopping knife roller are provided with kidney-shaped holes, so that the positions of the left moving blade and the right moving blade can be moved in a screw loosening manner, the adjustment of the positions of the moving blades and the clearance between the ground moving and fixed blades is facilitated, the optimum cutting edge rotating diameter is obtained, and the cutting effect is optimal; the left mounting seat and the right mounting seat are distributed in a V-shaped staggered manner, namely, the cutting edges of the single left blade and the single right blade are cut from the outer side to the position of the central circumferential line of the knife roller, so that the materials flow to the position of the middle surface of the knife roller after being cut, and the power consumed by friction between the cut materials and the side wall is reduced; and the cutting edges of all the left moving blades and the right moving blades are positioned on the same cylindrical surface, so that the gap values of the moving and fixed blades can be ensured to be equal everywhere, and the material cutting quality can be improved.
Description
Technical Field
The utility model relates to the technical field of mechanical cutting, in particular to a V-shaped chopping knife roller and an ensiling harvester.
Background
In the working process of the silage harvester, the series processes of harvesting, feeding, chopping, crushing and throwing of silage materials are involved; wherein, the link of cutting up the silage material forms the cutting pair through the movable blade of installing in the rotor and the stationary knife that is fixed in the frame and realizes.
In the prior art, the structure and the arrangement mode of the movable blade of the traditional chopping knife roller are unreasonable, the cutting clearance of the movable knife and the fixed knife is inconvenient to adjust, and the process of grinding the movable blade is complicated; and the material flow is easy to rub the side wall, the power consumption is increased, and the cutting efficiency is not ideal.
Therefore, how to improve the shredding knife roll to improve the cutting quality and efficiency is a difficult problem to be solved in the field at present.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a V-shaped cutter roll, which can improve cutting quality and efficiency, and solve the problems in the field at the present stage. It is also an object of the present invention to provide a silage harvester comprising the above V-shaped chopper wheel, whereby cutting quality and efficiency can be improved.
A V-shaped chopper roll comprising: the roller is arranged on a left mounting seat and a right mounting seat on the peripheral surface of the roller, and a left moving blade and a right moving blade which are respectively mounted on the left mounting seat and the right mounting seat;
the left mounting seat and the right mounting seat are respectively positioned on two sides of a central circumferential line of the roller and distributed in a V-shaped staggered manner, and the left mounting seat and the right mounting seat are distributed along the circumferential direction of the roller;
nuts are fixed on the mounting surface of the left mounting seat and the mounting surface of the right mounting seat;
the left moving blade and the right moving blade are respectively provided with a waist-shaped hole matched with the nut, and a screw matched with the nut is inserted into the waist-shaped hole; the cutting edges of the left moving blade and the right moving blade are both arc-shaped;
and when viewed from the end face of the roller, the cutting edges of the left moving blades and the cutting edges of the right moving blades are distributed on the same circumference.
Preferably, the plurality of left mounting seats and the plurality of right mounting seats are uniformly distributed on the circumference of the drum;
and viewed from the end face of the roller, the cutting edges of the left moving blades and the cutting edges of the right moving blades are uniformly distributed on the same circumference.
Preferably, the V-shaped chopper roller further comprises a first bearing and a second bearing respectively arranged at two ends of the drum, and a left flange shaft and a right flange shaft respectively inserted into the first bearing and the second bearing.
Preferably, the V-shaped shredding knife roll has a first annular plug and a second annular plug at two ends of the drum, and the first bearing and the second bearing are respectively disposed at the first plug and the second plug.
Preferably, the mounting surface of the left mounting seat and the mounting surface of the right mounting seat of the V-shaped shredding knife roll are inclined at the same angle as the outer peripheral surface of the drum.
Preferably, the V-shaped shredding knife roll, the nut is arranged on the inner side of the mounting surface, and the mounting surface is provided with a through hole matched with the nut.
Preferably, the V-shaped shredding knife roll is characterized in that a nut plate is fixed on the inner side of the mounting surface, a plurality of screw holes are formed in the nut plate, and the screws, the through holes and the waist-shaped holes are matched in plurality.
Preferably, the V-shaped cutter roll is welded to an inner side of the mounting surface.
Preferably, the V-shaped chopper wheel, the left mounting seat and the right mounting seat are welded to the drum.
A silage harvester comprising a V-shaped chopper roller as described in any one of the above.
The utility model provides a V-shaped chopping knife roller, which comprises: the roller comprises a left mounting seat and a right mounting seat which are arranged on the peripheral surface of the roller, and a left moving blade and a right moving blade which are respectively mounted on the left mounting seat and the right mounting seat; the left mounting seats and the right mounting seats are respectively positioned on two sides of a central circumferential line of the roller and distributed in a V-shaped staggered manner, and the left mounting seats and the right mounting seats are distributed along the circumferential direction of the roller; nuts are fixed on the mounting surface of the left mounting seat and the mounting surface of the right mounting seat; the left moving blade and the right moving blade are both provided with waist-shaped holes matched with the nuts, and screws matched with the nuts are inserted in the waist-shaped holes; the cutting edges of the left moving blade and the right moving blade are both arc-shaped; and when viewed from the end face of the roller, the cutting edges of the left moving blades and the cutting edges of the right moving blades are distributed on the same circumference. The left moving blade and the right moving blade of the V-shaped chopping knife roller are provided with kidney-shaped holes, so that the positions of the left moving blade and the right moving blade can be moved in a screw loosening manner, the adjustment of the positions of the moving blades and the clearance between the ground moving and fixed blades is facilitated, the optimum cutting edge rotating diameter is obtained, and the optimum cutting effect is realized; the cutter is a circular arc edge, and a blade does not need to be disassembled and assembled during sharpening, so that the cutter is simple and convenient; the left mounting seat and the right mounting seat are distributed in a V-shaped staggered manner, namely, the cutting edges of the single left blade and the single right blade are cut from the outer side to the position of the central circumferential line of the knife roller, so that the materials flow to the position of the middle surface of the knife roller after being cut, and the power consumed by friction between the cut materials and the side wall is reduced; and the cutting edges of all the left moving blades and the right moving blades are positioned on the same cylindrical surface, so that the gap values of the moving and fixed blades can be ensured to be equal everywhere, and the material cutting quality can be improved. Therefore, the V-shaped chopping knife roller provided by the utility model can improve the cutting quality and efficiency and solves the problem in the field at the present stage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a front view of a V-shaped chopper roller in accordance with an embodiment of the present invention;
FIG. 2 is a side view of a V-shaped chopper roller in accordance with an embodiment of the present invention;
FIG. 3 is a schematic end view of a V-shaped chopper roller in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a left blade according to an embodiment of the present invention;
FIG. 5 is a schematic view of a right moving blade in an embodiment of the present invention;
FIG. 6 is a schematic view of a nutplate in an embodiment of the present invention.
In fig. 1-6:
a roller-1; a left mounting base-2; a right mounting base-3; a left blade-4; a right moving blade-5; waist-shaped hole-6; screw-7; a first bearing-8; a left flange shaft-9; right flange shaft-10; a first plug-11; a nut plate-12; a screw hole-13; a through hole-14.
Detailed Description
The core of this embodiment lies in providing a V type shredding knife roller, and this V type shredding knife roller can improve cutting quality and efficiency, has solved the difficult problem in this field at present stage.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the utility model described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the utility model described in the claims.
The V-shaped chopper roller according to the present embodiment includes: the device comprises a roller 1, a left mounting seat 2 and a right mounting seat 3 which are arranged on the peripheral surface of the roller 1, and a left moving blade 4 and a right moving blade 5 which are respectively arranged on the left mounting seat 2 and the right mounting seat 3; the left mounting seat 2 and the right mounting seat 3 are respectively positioned on two sides of the central circumferential line of the roller 1 and distributed in a V-shaped staggered manner, and the left mounting seat 2 and the right mounting seat 3 are distributed along the circumferential direction of the roller 1; nuts are fixed on the mounting surface of the left mounting seat 2 and the mounting surface of the right mounting seat 3; the left moving blade 4 and the right moving blade 5 are both provided with waist-shaped holes 6 matched with the nuts, and screws 7 matched with the nuts are inserted in the waist-shaped holes 6; the cutting edges of the left moving blade 4 and the right moving blade 5 are both arc-shaped; the cutting edges of the left moving blades 4 and the cutting edges of the right moving blades 5 are distributed on the same circumference when viewed from the end surface of the roller 1.
The left moving blade 4 and the right moving blade 5 of the V-shaped chopping knife roller are provided with kidney-shaped holes 6, so that the positions of the left moving blade 4 and the right moving blade 5 can be moved by loosening the screws 7, the adjustment of the positions of the moving blades and the clearance between the ground moving and fixed blades is facilitated, the optimum cutting edge rotating diameter is obtained, and the optimum cutting effect is realized; the cutter is a circular arc edge, and a blade does not need to be disassembled and assembled during sharpening, so that the cutter is simple and convenient; the left mounting seat 2 and the right mounting seat 3 are distributed in a V-shaped staggered manner, namely, the cutting edges of the single left blade 4 and the single right blade 5 are all cut from the outer side to the position of the central circumferential line of the knife roller when the materials are contacted, so that the materials flow to the middle surface of the knife roller after being cut, and the power consumed by friction between the cut materials and the side wall is reduced; and the cutting edges of the left moving blade 4 and the right moving blade 5 are positioned on the same cylindrical surface, so that the gap values of the moving and fixed blades can be ensured to be equal everywhere, and the material cutting quality can be improved.
Therefore, the V-shaped chopping knife roller provided by the utility model can improve the cutting quality and efficiency and solves the problem in the field at the present stage. Please refer to fig. 1-6.
Further, the plurality of left mounting seats 2 and the plurality of right mounting seats 3 of the V-shaped shredding knife roll can be uniformly distributed in the circumferential direction of the drum 1; that is, the cutting edges of the left blades 4 and the cutting edges of the right blades 5 are uniformly distributed on the same circumference when viewed from the end surface of the roller 1. The design ensures that the cutting edges of all the left blades 4 and the right blades 5 are continuous, and the condition of missed cutting does not exist in the width direction of the knife roll, namely, the cutting edges cut materials all at any time in the rotating process of the V-shaped cutter roller, so that the cutting resistance moment is uniform and consistent, and the cutting stability is ensured.
The V-shaped shredding knife roll provided by the present embodiment may further include a first bearing 8 and a second bearing respectively disposed at two ends of the drum 1, and a left flange shaft 9 and a right flange shaft 10 respectively inserted into the first bearing 8 and the second bearing.
Further, the two ends of the drum 1 may be respectively provided with a first annular plug 11 and a second annular plug, and the first bearing 8 and the second bearing may be respectively arranged on the first plug 11 and the second plug.
The left mounting seat 2, the right mounting seat 3, the first plug 11 and the second plug can be welded on the roller 1, so that the stability of the whole structure is improved; of course, the connection relationship between the structures can be in other forms which can play the same role.
In the V-shaped shredding knife roll provided by the embodiment, the mounting surface of the left mounting seat 2 and the mounting surface of the right mounting seat 3 can be inclined at the same angle compared with the peripheral surface of the roller 1; the double-row movable cutter holder and the movable cutter blades which are uniformly and obliquely arranged can obtain ideal sliding cutting angles and pushing angles, cutting efficiency is improved, cutting power is saved, cutting resistance moments are uniform and consistent, material cutting is more stable, material flow is concentrated in the middle face of the cutter roller, and power consumed by friction between cut materials and the side wall is reduced.
In the V-shaped chopping knife roller provided by the embodiment, the nut can be arranged on the inner side of the mounting surface, and the mounting surface is provided with the through hole 14 matched with the nut; further, a nut plate 12 can be fixed on the inner side of the mounting surface, a plurality of screw holes 13 are formed in the nut plate 12, and the screws 7, the through holes 14 and the waist-shaped holes 6 are matched.
Namely, the nut plate 12 and the mounting surface of the mounting seat are fixedly arranged, such as welded; when the movable blade is dismounted, only the screw 7 needs to be dismounted. The mounting base comprises a left mounting base 2 and a right mounting base 3; in a similar way, the movable blade comprises a left movable blade 4 and a right movable blade 5.
The nutplate 12 may be welded to the inside of the mounting surface or take other forms that serve an equivalent purpose.
Further, the working process of the V-shaped cutter roller is explained in detail:
when the cutting machine works, the left moving blades 4 firstly contact materials at the leftmost end of the blade, then sequentially move to the rightmost end along the blade of the left moving blade 4, and then the right moving blade 5 adjacent to the left moving blade 4 at the current position starts to cut the materials; similar to the left blade 4, the right blade 5 firstly contacts the material at the rightmost end of the blade, then sequentially moves along the blade of the right blade 5 to the leftmost end, and then the left blade 4 adjacent to the right blade 5 at the current position starts to cut the material and sequentially circulates; the cutting edges of the left moving blade 4 and the right moving blade 5 are continuous, the condition of missed cutting does not exist in the width direction of the knife roll, and the V-shaped chopping knife roll has the cutting edges for cutting materials all at any time in the rotating process, so that the cutting resistance moment is uniform and consistent, and the cutting stability is ensured. In addition, when the left moving blade 4 and the right moving blade 5 cut crops, the cutting edges of the single blades start to contact the crops from the outer side and finish cutting at the center of the knife roller, so that materials flow to the middle surface of the knife roller after being cut, and power consumed by friction between the cut materials and the side wall is reduced.
In the initial stage, the left moving blade 4 and the right moving blade 5 are installed on the left installation seat 2 and the right installation seat 3 one by one, and when the diameter of the circumference enclosed by the cutting edges of the left moving blade 4 and the right moving blade 5 approaches to an ideal diameter D, the screws 7 are screwed down to fix all the moving blades. When the V-shaped chopping knife roller is used for cutting crops, materials are horizontally conveyed from the right front, if the leftmost end of a certain left moving blade 4 contacts the materials firstly, then the materials sequentially move to the rightmost end along the cutting edge of the left moving blade 4, and when the knife roller continuously rotates, the cutting edge of the left moving blade 4 does not cut the materials, then the rightmost end of the cutting edge of the right moving blade 5 adjacent to the cutting edge starts to contact the materials, and in the whole process that the left moving blade 4 jumps to the right moving blade 5 to contact the materials, the cutting edge of the moving blade always cuts the materials, so that the continuous consistency of cutting is ensured.
In a similar way, the right moving blade 5 firstly contacts the material along the rightmost edge of the blade, then sequentially moves to the leftmost edge along the blade of the right moving blade 5, and then the left moving blade 4 adjacent to the right moving blade 5 at the current position starts to cut the material, and the whole material cutting action point is gathered from the outer side to the center of the knife roller, so that the whole material flows from the two sides to the middle, and the power consumed by the friction between the material and the side wall is reduced. After the movable blade is cut for a period of time, all the movable blades need to be sharpened by using a knife grinder, the circumferential diameter enclosed by the cutting edges of the left movable blade 4 and the right movable blade 5 after grinding is smaller than the initial ideal diameter D, the screws 7 can be loosened one by one, then the left movable blade 4 and the right movable blade 5 are pushed forward to a certain position along the direction of the waist-shaped hole 6 equally until the circumferential diameter enclosed by the cutting edges of the left movable blade 4 and the right movable blade 5 is close to the initial ideal diameter D, and then the screws 7 are screwed.
The present invention also provides a silage harvester, which includes the above-mentioned V-shaped shredding knife roller, and therefore, the silage harvester is also within the protection scope of the present invention.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A V-shaped chopper roller, comprising: the device comprises a roller (1), a left mounting seat (2) and a right mounting seat (3) which are arranged on the peripheral surface of the roller (1), and a left moving blade (4) and a right moving blade (5) which are respectively arranged on the left mounting seat (2) and the right mounting seat (3);
the left mounting seats (2) and the right mounting seats (3) are respectively positioned on two sides of a central circumferential line of the roller (1) and distributed in a V-shaped staggered manner, and the left mounting seats (2) and the right mounting seats (3) are distributed along the circumferential direction of the roller (1);
nuts are fixed on the mounting surface of the left mounting seat (2) and the mounting surface of the right mounting seat (3);
the left moving blade (4) and the right moving blade (5) are both provided with waist-shaped holes (6) matched with the nuts, and screws (7) matched with the nuts are inserted in the waist-shaped holes (6); the cutting edges of the left moving blade (4) and the right moving blade (5) are arc-shaped;
and when viewed from the end face of the roller (1), the cutting edges of the left moving blades (4) and the cutting edges of the right moving blades (5) are distributed on the same circumference.
2. The V-shaped chopper roll according to claim 1, characterized in that a plurality of the left mounting seats (2) and a plurality of the right mounting seats (3) are uniformly distributed in the circumferential direction of the drum (1);
and viewed from the end face of the roller (1), the cutting edges of the left moving blades (4) and the cutting edges of the right moving blades (5) are uniformly distributed on the same circumference.
3. The V-shaped chopping knife roll according to claim 1, characterized by further comprising a first bearing (8) and a second bearing which are respectively arranged at two ends of the roller (1), and a left flange shaft (9) and a right flange shaft (10) which are respectively inserted into the first bearing (8) and the second bearing.
4. The V-shaped chopper roll according to claim 3, characterized in that the drum (1) is provided at both ends thereof with a first stopper (11) and a second stopper, respectively, which are formed in a ring shape, and the first bearing (8) and the second bearing are provided at the first stopper (11) and the second stopper, respectively.
5. The V-shaped chopper roll according to claim 1, characterized in that the mounting surface of the left mounting seat (2) and the mounting surface of the right mounting seat (3) are inclined at the same angle as the outer circumferential surface of the drum (1).
6. A V-shaped chopper wheel according to claim 5, characterized in that the nut is disposed inside the mounting surface, and the mounting surface is provided with a through hole (14) matching the nut.
7. The V-shaped chopping knife roller according to claim 6, characterized in that a nut plate (12) is fixed on the inner side of the mounting surface, a plurality of screw holes (13) are formed on the nut plate (12), and the screws (7), the through holes (14) and the kidney-shaped holes (6) are matched in plurality.
8. The V-shaped chopper roll of claim 7, characterized in that the nut plate (12) is welded to the inside of the mounting surface.
9. A V-shaped chopper wheel according to claim 1, characterized in that the left mounting seat (2) and the right mounting seat (3) are both welded to the drum (1).
10. A silage harvester comprising a V-shaped chopper wheel as claimed in any one of claims 1-9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122140496.0U CN215582664U (en) | 2021-09-06 | 2021-09-06 | V-shaped chopping knife roller and silage harvester |
| PCT/CN2022/113316 WO2023030022A1 (en) | 2021-09-06 | 2022-08-18 | V-shaped chopping knife roller and silage harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122140496.0U CN215582664U (en) | 2021-09-06 | 2021-09-06 | V-shaped chopping knife roller and silage harvester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215582664U true CN215582664U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122140496.0U Active CN215582664U (en) | 2021-09-06 | 2021-09-06 | V-shaped chopping knife roller and silage harvester |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN215582664U (en) |
| WO (1) | WO2023030022A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115316053A (en) * | 2022-08-11 | 2022-11-11 | 金华市农业科学研究院(浙江省农业机械研究院) | Spiral zigzag cutter head suitable for cutting water bamboo pier |
| WO2023030022A1 (en) * | 2021-09-06 | 2023-03-09 | 中国铁建重工集团股份有限公司 | V-shaped chopping knife roller and silage harvester |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10021662B4 (en) * | 2000-05-04 | 2004-01-15 | Maschinenfabrik Bernard Krone Gmbh | Harvester, especially self-propelled forage harvesters |
| CN203206749U (en) * | 2013-02-06 | 2013-09-25 | 洛阳四达农机有限公司 | Crawler self-propelled ear stem corn harvester for reaping both corn stalk and spike |
| CN203505117U (en) * | 2013-11-13 | 2014-04-02 | 中机美诺科技股份有限公司 | Cutting and rubbing device for silage harvester |
| CN207626114U (en) * | 2017-11-13 | 2018-07-20 | 佳木斯大学 | A kind of hob-type straw chopping cylinder |
| CN108901331A (en) * | 2018-07-06 | 2018-11-30 | 甘肃省机械科学研究院有限责任公司 | Combined type fodder grass shreds rotor |
| CN215582664U (en) * | 2021-09-06 | 2022-01-21 | 中国铁建重工集团股份有限公司 | V-shaped chopping knife roller and silage harvester |
-
2021
- 2021-09-06 CN CN202122140496.0U patent/CN215582664U/en active Active
-
2022
- 2022-08-18 WO PCT/CN2022/113316 patent/WO2023030022A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023030022A1 (en) * | 2021-09-06 | 2023-03-09 | 中国铁建重工集团股份有限公司 | V-shaped chopping knife roller and silage harvester |
| CN115316053A (en) * | 2022-08-11 | 2022-11-11 | 金华市农业科学研究院(浙江省农业机械研究院) | Spiral zigzag cutter head suitable for cutting water bamboo pier |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023030022A1 (en) | 2023-03-09 |
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