Corn stalk chopping device of corn harvester

Abstract

The utility model discloses a corn stalk chopping device of a corn harvester, and relates to the technical field of corn harvesters, the corn stalk chopping device of the corn harvester comprises a harvesting arm and a rotating shaft, the rotating shaft is installed on the surface of one side of the harvesting arm, and a pulling plate is installed on the surface of the outer side of the rotating shaft. An extension plate is installed on the surface of one side of the harvesting arm, and a contact plate is installed on the surface of the top end of the extension plate. When the rotating rod rotates, the cutting edges installed on the outer side surface of the rotating rod can be driven to rotate, due to the fact that the heights of the two sets of cutting edges are not appropriate, the two sets of cutting edges can be staggered, the rotating cutting edges can make contact with corn stalks, and the corn stalks are cut and smashed through rotation of the cutting edges; therefore, the defects that a single blade of a corn harvester in the prior art can only cut off corn stalks, the cut-off corn stalks are large in size, and the period of absorbing the corn stalks by land is long are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of corn harvesters, in particular to a corn stalk chopping device for a corn harvester. Background Art

[0002] A corn harvester is a mechanical device used to harvest corn crops, usually towed by a tractor. The main function of a corn harvester is to cut the mature corn plants and separate and process the corn ears from the stalks. Corn harvesters are usually equipped with knives or rotary cutting devices to cut the corn plants from the ground. The cut corn plants are transported and processed by a series of conveyor belts and mechanisms, and the corn ears are effectively separated from the stalks.

[0003] Corn harvesters in the prior art generally rotate a rotating shaft when the harvester rotates, and a blade is installed on the outer surface of the rotating shaft. The blade contacts and hits the corn stalks through high-speed rotation, thereby crushing the corn stalks. However, since corn harvesters in the prior art can only be equipped with a single blade, the blade can only simply cut the corn stalks when rotating, and cannot fully crush them, resulting in a large volume of the chopped corn stalks and incomplete crushing. Utility Model Content

[0004] The utility model provides a corn stalk chopping device for a corn harvester, which has the advantage of crushing, so as to solve the problem that the corn harvester in the prior art can only be equipped with a single blade, so that the blade can only simply cut the corn stalks when rotating, and cannot fully crush them, resulting in the chopped corn stalks being large in volume and incomplete crushing.

[0005] In order to achieve the purpose of crushing, the utility model provides the following technical solutions: a corn stalk chopping device of a corn harvester, comprising a harvesting arm and a rotating shaft, the rotating shaft is installed on one side surface of the harvesting arm, a pulling plate is installed on the outer surface of the rotating shaft, an extension plate is installed on one side surface of the harvesting arm, a contact plate is installed on the top surface of the extension plate, a conveying assembly is installed on the top surface of the harvesting arm, and a chopping assembly is installed on the bottom surface of the conveying assembly.

[0006] As a preferred technical solution of the utility model, there are two extension plates, and the two extension plates are equidistantly distributed on one side surface of the harvesting arm. A contact plate is correspondingly distributed on the top surface of each extension plate, and a rotation axis is correspondingly distributed on the top surface of each extension plate. The top surface of the harvesting arm also has two rotation axes.

[0007] As a preferred technical solution of the utility model, the conveying assembly includes a bearing, a transmission shaft is installed on the inner wall of the bearing, a transmission gear is installed on the outer surface of the transmission shaft, a transmission chain is installed on the outer surface of the transmission gear, a push plate is installed on the outer surface of the transmission chain, and the bearing is installed on the inner wall of the extension plate.

[0008] As a preferred technical solution of the utility model, there are a plurality of bearings, and the plurality of bearings are correspondingly distributed on the inner wall of the rotating shaft. The outer surface of the bearing is movably and rotatably connected to the inner wall of the rotating shaft. A transmission gear is distributed on the outer surface of each bearing. There are two transmission chains, and the inner wall of each transmission chain is in movably contact with the outer surfaces of two transmission gears. There are a plurality of push plates equidistantly distributed on the outer surface of the transmission chain.

[0009] As a preferred technical solution of the utility model, the shredding assembly includes a track disc, a transmission track is installed on the outer surface of the track disc, a protective shell is installed on the bottom end surface of the extension plate, a rotating rod is installed on the inner wall of the protective shell, a cutting blade is installed on the outer surface of the rotating rod, and the track disc is installed on the outer surface of the transmission shaft.

[0010] As a preferred technical solution of the utility model, there are two track discs, which are respectively distributed on the outer surfaces of the two transmission shafts, and the outer surfaces of the two track discs are correspondingly distributed with transmission belts, and the inner wall of the transmission belt is in active contact with the outer surface of the track disc.

[0011] As a preferred technical solution of the utility model, the protective shell is composed of two bottom end surfaces respectively distributed on the two extension plates, and a rotating rod is correspondingly distributed on the inner wall of each of the protective shells. The rotating rod is movably and rotatably connected to the protective shell, and the outer surface of the rotating rod is movably contacted with the inner wall of the transmission track, and two cutting edges are correspondingly distributed on the outer surface of each of the rotating rods.

[0012] Compared with the prior art, the utility model provides a corn stalk chopping device for a corn harvester, which has the following beneficial effects:

[0013] The corn stalk chopping device of the corn harvester drives the cutting blades installed on its outer surface to rotate when the rotating rod rotates. Because the two sets of cutting blades are not at an appropriate height, the two sets of cutting blades will be staggered with each other, and the rotating cutting blades will come into contact with the corn stalks. The corn stalks are cut and crushed by the rotation of the cutting blades, thereby compensating for the problem that the single blade of the corn harvester in the prior art can only cut the corn stalks, resulting in a larger volume of the cut corn stalks and a long period of corn stalk absorption by the land. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the external structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the external structure of the utility model from another angle;

[0016] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the rotating shaft structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the conveying component of the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the shredding component of the utility model.

[0020] In the figure: 1. harvesting arm; 2. rotating shaft; 3. pulling plate; 4. extension plate; 5. contact plate; 6. bearing; 7. transmission shaft; 8. transmission gear; 9. transmission chain; 10. push plate; 11. track disc; 12. transmission track; 13. protective shell; 14. rotating rod; 15. cutting blade. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1 , Figure 3 , Figure 5 The utility model discloses a corn stalk chopping device for a corn harvester, comprising a harvesting arm 1 and a rotating shaft 2, the rotating shaft 2 being mounted on a side surface of the harvesting arm 1, a pulling plate 3 being mounted on the outer surface of the rotating shaft 2, an extension plate 4 being mounted on a side surface of the harvesting arm 1, a contact plate 5 being mounted on the top surface of the extension plate 4, a conveying assembly being mounted on the top surface of the harvesting arm 1, and a chopping assembly being mounted on the bottom surface of the conveying assembly.

[0024] There are two extension plates 4, which are equidistantly distributed on one side surface of the harvesting arm 1. A contact plate 5 is correspondingly distributed on the top surface of each extension plate 4. A rotating shaft 2 is correspondingly distributed on the top surface of each extension plate 4. There are also two rotating shafts 2 distributed on the top surface of the harvesting arm 1.

[0025] The conveying assembly includes a bearing 6, a transmission shaft 7 is installed on the inner wall of the bearing 6, a transmission gear 8 is installed on the outer surface of the transmission shaft 7, a transmission chain 9 is installed on the outer surface of the transmission gear 8, a push plate 10 is installed on the outer surface of the transmission chain 9, and the bearing 6 is installed on the inner wall of the extension plate 4.

[0026] There are a plurality of bearings 6, which are correspondingly distributed on the inner wall of the rotating shaft 2. The outer surface of the bearing 6 is movably and rotatably connected to the inner wall of the rotating shaft 2. A transmission gear 8 is distributed on the outer surface of each bearing 6. There are two transmission chains 9, and the inner wall of each transmission chain 9 is in movably contact with the outer surfaces of the two transmission gears 8. There are a plurality of push plates 10 that are equidistantly distributed on the outer surface of the transmission chain 9.

[0027] When the corn stalk is pulled, the corn on the surface of the corn stalk cannot be pulled between the two rotating shafts 2 due to its large volume, so that the corn falls off the surface of the corn stalk. When the corn falls off, because the transmission chain 9 is still rotating, the rotating transmission chain 9 will drive the pushing plate 10 to contact the corn again, and drive the corn to move through the rotation, so as to realize the peeling of the corn from the corn stalk.

[0028] Embodiment 2

[0029] Please refer to the figure Figure 2 , Figure 4 , Figure 6 The utility model discloses a corn stalk chopping device for a corn harvester. The chopping assembly includes a track disc 11, a transmission track 12 is installed on the outer surface of the track disc 11, a protective shell 13 is installed on the bottom end surface of the extension plate 4, a rotating rod 14 is installed on the inner wall of the protective shell 13, a cutting blade 15 is installed on the outer surface of the rotating rod 14, and the track disc 11 is installed on the outer surface of the transmission shaft 7.

[0030] There are two track discs 11 , which are respectively distributed on the outer surfaces of the two transmission shafts 7 . Transmission tracks 12 are correspondingly distributed on the outer surfaces of the two track discs 11 , and the inner walls of the transmission tracks 12 are in active contact with the outer surfaces of the track discs 11 .

[0031] The protective shell 13 is composed of two bottom surfaces respectively distributed on the two extension plates 4. A rotating rod 14 is correspondingly distributed on the inner wall of each protective shell 13. The rotating rod 14 is movably and rotatably connected to the protective shell 13. The outer surface of the rotating rod 14 is movably in contact with the inner wall of the transmission track 12. Two cutting blades 15 are correspondingly distributed on the outer surface of each rotating rod 14.

[0032] The moving track 12 is wound around the outer surface of the rotating rod 14 at the same time. At this time, the rotating drive track 12 will drive the rotating rod 14 to rotate. When the rotating rod 14 rotates, it will drive the cutting blade 15 installed on its outer surface to rotate. Because the two groups of cutting blades 15 are not at the right height, the two groups of cutting blades 15 will be staggered from each other, and the rotating cutting blades 15 will contact the corn stalks, and the corn stalks will be cut and crushed by the rotation of the cutting blades 15.

[0033] The working principle and use process of the utility model are as follows: when the corn harvester is started, its power source will drive the transmission shaft 7 and the rotating shaft 2 to rotate. When the transmission shaft 7 rotates, it will drive the transmission gear 8 installed on its outer surface to rotate, and the outer surface of the transmission gear 8 is installed with a transmission chain 9. At this time, the transmission chain 9 will rotate along with the transmission gear 8. A pushing plate 10 is installed on the outer surface of the transmission chain 9. When the corn harvester moves forward, one side surface of the pushing plate 10 will contact with the corn stalks. Because the pushing plate 10 is in motion following the transmission chain 9, the pushing plate 10 will pull the corn stalks inward. When the corn stalks are pulled, the rotating shaft 2 will rotate along with the corn stalks. The rice stalks are in contact with each other, and because a pulling plate 3 is installed on the outer surface of the corn stalk, the rotating rotating shaft 2 will drive the pulling plate 3 to contact with the corn stalk, and because the pulling plate 3 is in a rotating state at this time, the two rotating shafts 2 will squeeze the corn stalk through the pulling plate 3 and pull it downward by rotating. When the corn stalk is pulled, the corn on the surface of the corn stalk cannot be pulled in between the two rotating shafts 2 due to its large volume, so that the corn falls off the surface of the corn stalk. When the corn falls off, because the transmission chain 9 is still rotating, the rotating transmission chain 9 will drive the pushing plate 10 to contact the corn again, and drive the corn to move through rotation, thereby realizing the peeling of the corn from the corn stalk.

[0034] When the corn stalks are pulled by the rotating shaft 2, because the transmission shaft 7 and the bearing 6 are still in a rotating state, and the outer surface of the transmission shaft 7 is also installed with a track disc 11, and the outer surface of the track disc 11 is installed with a transmission track 12, the rotating track disc 11 will drive the transmission track 12 on its outer surface to rotate, and the transmission track 12 is simultaneously wound around the outer surface of the rotating rod 14, and the rotating transmission track 12 will drive the rotating rod 14 to rotate, and when the rotating rod 14 rotates, it will drive the cutting blade 15 installed on its outer surface to rotate, because the two groups of cutting blades 15 are not of suitable height, the two groups of cutting blades 15 will be staggered with each other, and the rotating cutting blade 15 will contact the corn stalks, and the corn stalks will be cut and crushed by the rotation of the cutting blade 15.

Claims

1. A corn stalk chopping device for a corn harvester, comprising a harvesting arm (1) and a rotating shaft (2), wherein the rotating shaft (2) is mounted on a side surface of the harvesting arm (1), characterized in that: A pulling plate (3) is installed on the outer surface of the rotating shaft (2), an extension plate (4) is installed on one side surface of the harvesting arm (1), a contact plate (5) is installed on the top surface of the extension plate (4), a conveying assembly is installed on the top surface of the harvesting arm (1), and a chopping assembly is installed on the bottom surface of the conveying assembly.

2. A corn stalk chopping device for a corn harvester according to claim 1, characterized in that: There are two extension plates (4), which are equidistantly distributed on a side surface of the harvesting arm (1), and a contact plate (5) is correspondingly distributed on the top surface of each extension plate (4). A rotation axis (2) is correspondingly distributed on the top surface of each extension plate (4), and two rotation axes (2) are also distributed on the top surface of the harvesting arm (1).

3. The corn stalk chopping device for a corn harvester according to claim 1, characterized in that: The conveying assembly comprises a bearing (6), a transmission shaft (7) is installed on the inner wall of the bearing (6), a transmission gear (8) is installed on the outer surface of the transmission shaft (7), a transmission chain (9) is installed on the outer surface of the transmission gear (8), a push plate (10) is installed on the outer surface of the transmission chain (9), and the bearing (6) is installed on the inner wall of the extension plate (4).

4. The corn stalk chopping device for a corn harvester according to claim 3, characterized in that: There are a plurality of bearings (6), and the plurality of bearings (6) are correspondingly distributed on the inner wall of the rotating shaft (2). The outer surface of the bearing (6) is movably and rotatably connected to the inner wall of the rotating shaft (2). A transmission gear (8) is distributed on the outer surface of each bearing (6). There are two transmission chains (9), and the inner wall of each transmission chain (9) is in movably contact with the outer surfaces of two transmission gears (8). There are a plurality of push plates (10) equidistantly distributed on the outer surface of the transmission chain (9).

5. The corn stalk chopping device for a corn harvester according to claim 1, characterized in that; The shredder assembly comprises a track disc (11), a transmission track (12) is mounted on the outer surface of the track disc (11), a protective shell (13) is mounted on the bottom surface of the extension plate (4), a rotating rod (14) is mounted on the inner wall of the protective shell (13), a cutting blade (15) is mounted on the outer surface of the rotating rod (14), and the track disc (11) is mounted on the outer surface of the transmission shaft (7).

6. The corn stalk chopping device for a corn harvester according to claim 5, characterized in that: There are two track discs (11), which are respectively distributed on the outer surfaces of the two transmission shafts (7), and the outer surfaces of the two track discs (11) are correspondingly distributed with a transmission track (12), and the inner wall of the transmission track (12) is in active contact with the outer surface of the track disc (11).

7. The corn stalk chopping device for a corn harvester according to claim 5, characterized in that: The protective shell (13) is composed of two bottom surfaces respectively distributed on the two extension plates (4), and a rotating rod (14) is correspondingly distributed on the inner wall of each protective shell (13). The rotating rod (14) and the protective shell (13) are movably and rotatably connected, and the outer surface of the rotating rod (14) is in movably contact with the inner wall of the transmission crawler (12), and two cutting edges (15) are correspondingly distributed on the outer surface of each rotating rod (14).

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