A grass scraping and cutting mechanism and an agricultural machine

Abstract

The utility model provides a kind of grass scraping and cutting mechanism and agricultural machinery.A kind of grass scraping and cutting mechanism, comprising: rack, the fixed knife for cutting grass and the grass scraping knife for scraping grass of split setting, the fixed knife and the grass scraping knife are all installed on the rack, and the fixed knife is provided with multi-face cutting edge.One cutter is split into two, which can realize the functions of scraping grass and cutting grass.The fixed knife can use multi-face cutting edge, and when one cutting edge is worn out, it can be directly replaced with another cutting edge for continuous use, thereby prolonging the service life.

Description

Technical Field

[0001] This utility model relates to the field of silage harvester blade technology, and in particular to a grass scraping and cutting mechanism and agricultural machinery. Background Technology

[0002] The silage harvester typically has two types of blades installed between its feeding and chopping mechanisms: a scraper blade and a fixed chopping blade. The scraper blade is used to scrape the grass from the feeding roller and is usually made of cast metal. The fixed chopping blade works in conjunction with the moving chopping blade to cut the silage. However, current stalk and ear harvesters often combine these two blades into one. This design often results in the fixed chopping blade not being perfectly symmetrical, meaning it can only be used on one side and its lifespan cannot be extended. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a grass scraping and cutting mechanism and agricultural machinery to address the shortcomings of the existing technology.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A grass scraping and cutting mechanism includes: a frame, a fixed blade for cutting grass and a grass scraping blade for scraping grass, both of which are separately arranged, and the fixed blade and the grass scraping blade are mounted on the frame, and the fixed blade is provided with multiple cutting edges.

[0005] The beneficial effects of adopting this utility model's technical solution are: it splits a knife into two, enabling it to both scrape and cut grass. The fixed blade can be used with multiple cutting edges; when one edge wears out, it can be directly switched to the other edge for continued use, thereby extending its service life.

[0006] Furthermore, the multi-faceted cutting edge is a symmetrically arranged double-sided cutting edge.

[0007] The beneficial effect of adopting the above-mentioned further technical solution is that the fixed blade can be used with double-sided cutting edges. When one cutting edge is worn, it can be directly switched to the other cutting edge for continued use, thereby extending its service life.

[0008] Furthermore, the height of the mounting position of the grass scraper is higher than the height of the mounting position of the fixed blade.

[0009] The beneficial effect of adopting the above-mentioned further technical solution is that there is a height difference between the assembly positions of the fixed blade and the grass scraper, with the grass scraper being positioned higher than the fixed blade to prevent choking during feeding.

[0010] Furthermore, a feed roller and a shredding roller are mounted on the frame, with the fixed blade adjacent to the shredding roller and the grass scraper adjacent to the feed roller.

[0011] The beneficial effects of adopting the above-mentioned further technical solution are: the grass scraper and the feed roller work closely together to achieve the grass scraping function, and the fixed blade and the shredding roller are assembled and cooperated to achieve the shredding function of the fixed blade.

[0012] Furthermore, the distance between the cutting edge of the fixed blade and the outer cylindrical surface of the shredding roller blade ranges from 0.7mm to 1.1mm, and the distance between the grass scraper and the outer circle of the feed roller is no greater than 1.5mm.

[0013] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the grass scraper and the feed roller work closely together to achieve the grass scraping function; the fixed blade and the shredding roller are assembled and cooperate to achieve the shredding function of the fixed blade. The design of the distance between the fixed blade and the shredding roller improves the shredding efficiency and effect. The design of the distance between the grass scraper and the feed roller improves the grass scraping efficiency and effect.

[0014] Furthermore, the fixed blade has a cuboid structure, the grass scraper has a trapezoidal cross-section, and the grass scraper has a beveled edge, which is arranged along the tangent direction of the outer circle of the feed roller.

[0015] The beneficial effects of adopting the above-mentioned further technical solution are: the grass scraper is transformed from a blade that combines two functions into a single blade that simply scrapes grass, reducing its size by several times, making machining more convenient, and simplifying the complex shape into a trapezoidal thick plate. The inverted trapezoidal structure has the long side on top and the short side on the bottom, and is equipped with an inclined surface. The upper edge of the inclined surface can work with the feed roller to scrape grass.

[0016] Furthermore, a shredding shell is installed on the frame, and the fixed blade is installed on the shredding shell via a fixed blade beam, which is a plate adapted to the fixed blade; the grass scraper is installed on the frame via a supporting angle steel, which is an L-shaped plate.

[0017] The beneficial effects of adopting the above-mentioned further technical solution are: the fixed blade is assembled at the corresponding position of the fixed blade beam welding, and the grass scraper is assembled at the corresponding position of the supporting angle steel, so the two do not interfere with each other, nor with other moving parts. The welding of the fixed blade beam and the setting of the supporting angle steel facilitate the installation and maintenance of the fixed blade and the grass scraper.

[0018] Furthermore, the grass scraper is a machined sheet metal part, and both the fixed blade and the grass scraper are provided with multiple mounting holes.

[0019] The beneficial effects of adopting the above-mentioned further technical solution are: the grass scraper is transformed from a tool that combines two functions into a single tool for scraping grass, reducing its size by several times, making machining easier, and simplifying the complex shape into a trapezoidal thick plate component. The simplified structure of the grass scraper, adjusted to a machined thick plate component, avoids the costs of casting and mold opening, thus reducing costs. The installation holes facilitate the installation and maintenance of the fixed blade and the grass scraper.

[0020] Furthermore, the fixed blade is made of Q355B steel plate; the grass scraper is made of 45 steel.

[0021] The beneficial effects of adopting the above-mentioned further technical solutions are: the material design of the fixed blade and the grass scraper improves the load strength of the fixed blade and the grass scraper, and reduces costs.

[0022] In addition, this utility model also provides an agricultural machine, including the grass scraping and cutting mechanism described above.

[0023] The beneficial effects of adopting this utility model's technical solution are: it splits a knife into two, enabling it to both scrape and cut grass. The fixed blade can be used with multiple cutting edges; when one edge wears out, it can be directly switched to the other edge for continued use, thereby extending its service life.

[0024] The advantages of this invention in its additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is one of the structural schematic diagrams of the grass scraping and cutting mechanism provided in the embodiments of this utility model.

[0027] Figure 2 The second schematic diagram of the grass scraping and cutting mechanism provided in this embodiment of the utility model.

[0028] Figure 3 The third schematic diagram of the grass scraping and cutting mechanism provided in this embodiment of the utility model.

[0029] Figure 4 This is a schematic diagram of the fixed blade provided in an embodiment of the present utility model.

[0030] Figure 5 This is a schematic diagram of the structure of the grass scraper provided in an embodiment of the present utility model.

[0031] The following are the symbols in the attached diagram: 1. Fixed blade; 2. Grass scraper; 3. Feed roller; 4. Shredder roller; 5. Fixed blade beam welded together; 6. Supporting angle steel; 7. Cutting edge. Detailed Implementation

[0032] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] like Figures 1 to 5As shown, this utility model embodiment provides a grass scraping and cutting mechanism, including: a frame, a fixed blade 1 for cutting grass and a grass scraping blade 2 for scraping grass, both of which are separately arranged. The fixed blade 1 and the grass scraping blade 2 are mounted on the frame, and the fixed blade 1 is provided with multiple cutting edges 7.

[0039] The beneficial effects of adopting this utility model's technical solution are: it splits a knife into two, enabling it to both scrape and cut grass. The fixed blade can be used with multiple cutting edges; when one edge wears out, it can be directly switched to the other edge for continued use, thereby extending its service life.

[0040] The grass scraper 2 can be equipped with a single blade.

[0041] like Figures 1 to 5 As shown, the multi-faceted cutting edge 7 is a symmetrically arranged double-sided cutting edge.

[0042] The beneficial effect of adopting the above-mentioned further technical solution is that the fixed blade can be used with double-sided cutting edges. When one cutting edge is worn, it can be directly switched to the other cutting edge for continued use, thereby extending its service life.

[0043] like Figures 1 to 5 As shown, the height of the mounting position of the grass scraper 2 is higher than the height of the mounting position of the fixed blade 1.

[0044] The beneficial effect of adopting the above-mentioned further technical solution is that there is a height difference between the assembly positions of the fixed blade and the grass scraper, with the grass scraper being positioned higher than the fixed blade to prevent choking during feeding.

[0045] like Figures 1 to 5 As shown, the frame is further equipped with a feed roller 3 and a shredding roller 4, the fixed blade 1 is adjacent to the shredding roller 4, and the grass scraper 2 is adjacent to the feed roller 3.

[0046] The beneficial effects of adopting the above-mentioned further technical solution are: the grass scraper and the feed roller work closely together to achieve the grass scraping function, and the fixed blade and the shredding roller are assembled and cooperated to achieve the shredding function of the fixed blade.

[0047] like Figures 1 to 5 As shown, further, the distance between the cutting edge of the fixed blade 1 and the outer cylindrical surface of the shredding roller 4 is in the range of 0.7mm-1.1mm, and the distance between the grass scraper 2 and the outer circle of the feeding roller 3 is no greater than 1.5mm.

[0048] The beneficial effects of adopting the above-mentioned further technical solution are as follows: the grass scraper and the feed roller work closely together to achieve the grass scraping function; the fixed blade and the shredding roller are assembled and cooperate to achieve the shredding function of the fixed blade. The design of the distance between the fixed blade and the shredding roller improves the shredding efficiency and effect. The design of the distance between the grass scraper and the feed roller improves the grass scraping efficiency and effect.

[0049] like Figures 1 to 5 As shown, the fixed blade 1 is a cuboid structure, the grass scraper 2 has a trapezoidal cross section, the grass scraper 2 has a beveled edge, and the beveled edge of the grass scraper 2 is arranged along the tangent direction of the outer circle of the feed roller 3.

[0050] The beneficial effects of adopting the above-mentioned further technical solution are: the grass scraper is transformed from a blade that combines two functions into a single blade that simply scrapes grass, reducing its size by several times, making machining more convenient, and simplifying the complex shape into a trapezoidal thick plate. The inverted trapezoidal structure has the long side on top and the short side on the bottom, and is equipped with an inclined surface. The upper edge of the inclined surface can work with the feed roller to scrape grass.

[0051] like Figures 1 to 5 As shown, further, a shredding shell is installed on the frame, and the fixed blade 1 is installed on the shredding shell via a fixed blade beam weld 5, the fixed blade beam weld 5 being a plate body adapted to the fixed blade 1; the grass scraper 2 is installed on the frame via a supporting angle steel 6, the supporting angle steel 6 being an L-shaped plate body.

[0052] The beneficial effects of adopting the above-mentioned further technical solution are: the fixed blade is assembled at the corresponding position of the fixed blade beam welding, and the grass scraper is assembled at the corresponding position of the supporting angle steel, so the two do not interfere with each other, nor with other moving parts. The welding of the fixed blade beam and the setting of the supporting angle steel facilitate the installation and maintenance of the fixed blade and the grass scraper.

[0053] like Figures 1 to 5 As shown, the grass scraper 2 is a machined plate, and both the fixed blade 1 and the grass scraper 2 are provided with multiple mounting holes.

[0054] The beneficial effects of adopting the above-mentioned further technical solution are: the grass scraper is transformed from a tool that combines two functions into a single tool for scraping grass, reducing its size by several times, making machining easier, and simplifying the complex shape into a trapezoidal thick plate component. The simplified structure of the grass scraper, adjusted to a machined thick plate component, avoids the costs of casting and mold opening, thus reducing costs. The installation holes facilitate the installation and maintenance of the fixed blade and the grass scraper.

[0055] Among them, the grass scraper 2 can be punched out first, and then machined at an angle.

[0056] Furthermore, the fixed blade 1 is made of Q355B steel plate; the grass scraper 2 is made of 45 steel.

[0057] The beneficial effects of adopting the above-mentioned further technical solutions are: the material design of the fixed blade and the grass scraper improves the load strength of the fixed blade and the grass scraper, and reduces costs.

[0058] like Figures 1 to 5 As shown, this utility model embodiment addresses the problem of the fixed blade's inability to use both cutting edges simultaneously to extend its service life. It splits the fixed blade (fixed blade) into two parts, extending its service life while maintaining both scraping and chopping functions. The fixed blade 1 in this embodiment is made of 25 / Q355B steel plate (25# carbon structural steel), with a double-edged, rectangular structure. During assembly, the double-edged sides face upwards, and the edge of the cutting edge (the boundary of the upper surface of the blade) is adjusted to be 0.7-1.1mm away from the outer cylindrical surface of the blade roller (chopping roller 4). The scraping blade 2 is made of 45# steel, with a trapezoidal structure. During assembly, the long side of the trapezoid faces upwards, and the inclined side is along the tangent direction of the outer circle of the feed roller.

[0059] The fixed blade 1 and the grass scraper 2 are assembled at different heights, with the grass scraper 2 positioned higher than the fixed blade 1 to prevent choking during feeding. The grass scraper 2 works closely with the feed roller 3 to achieve the grass scraping function. The fixed blade 1 is assembled and cooperates with the shredding roller 4 to achieve the shredding function of the fixed blade 1. The fixed blade 1 is assembled at the corresponding position of the fixed blade beam weld 5, and the grass scraper 2 is assembled at the corresponding position of the supporting angle steel 6. The two do not interfere with each other, nor with other moving parts.

[0060] By splitting a single blade into two while ensuring functionality, the issue of blade lifespan is resolved. This allows for both grass scraping and grass cutting, and the grass scraper's streamlined structure, made from a machined thick plate, avoids the costs associated with casting and mold making. The fixed blade can be used with both cutting edges, further extending its lifespan.

[0061] In addition, this utility model also provides an agricultural machine, including the grass scraping and cutting mechanism described above.

[0062] The beneficial effects of adopting this utility model's technical solution are: it splits a knife into two, enabling it to both scrape and cut grass. The fixed blade can be used with multiple cutting edges; when one edge wears out, it can be directly switched to the other edge for continued use, thereby extending its service life.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A grass cutting and chopping mechanism, characterised in that, include: The machine includes a frame, a fixed blade for cutting grass and a grass scraper, which are separately mounted on the frame. The fixed blade has multiple cutting edges.

2. A combination mowing and chopping mechanism according to claim 1 wherein, The multi-faceted cutting edge is a symmetrically arranged double-sided cutting edge.

3. A grass cutting and chopping mechanism as claimed in claim 1, wherein, The height of the mounting position of the grass scraper is higher than the height of the mounting position of the fixed blade.

4. A grass cutting and chopping mechanism as claimed in claim 1, wherein, The frame is equipped with a feed roller and a shredding roller, with the fixed blade adjacent to the shredding roller and the grass scraper adjacent to the feed roller.

5. A grass cutting and chopping mechanism according to claim 4, wherein, The distance between the cutting edge of the fixed blade and the outer cylindrical surface of the shredding roller blade is in the range of 0.7mm-1.1mm, and the distance between the grass scraper blade and the outer circle of the feed roller is no greater than 1.5mm.

6. A grass cutting and chopping mechanism as claimed in claim 1, wherein, The fixed blade has a cuboid structure, the grass scraper has a trapezoidal cross-section, and the grass scraper has a beveled edge, which is set along the tangent direction of the outer circle of the feed roller.

7. A grass cutting and chopping mechanism as claimed in claim 1, wherein, The frame is equipped with a shredding shell welded together, and the fixed blade is welded onto the shredding shell welded together via a fixed blade beam welded together. The fixed blade beam welded together is a plate body adapted to the fixed blade. The grass scraper is mounted on the frame via a supporting angle steel, which is an L-shaped plate body.

8. A grass cutting and chopping mechanism as claimed in claim 1, wherein, The grass scraper is a machined plate, and both the fixed blade and the grass scraper are provided with multiple mounting holes.

9. A grass cutting and chopping mechanism as claimed in claim 1, wherein, The fixed blade is made of Q355B steel plate; the grass scraper is made of 45 steel.

10. An agricultural machine characterized by, Includes a grass scraping and cutting mechanism as described in any one of claims 1 to 9.

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