Sunflower harvesting and threshing integrated device

By designing an integrated sunflower harvesting and threshing device, the problems of sunflower seed waste and high labor costs in existing technologies have been solved. It realizes the separation and independent conveying of sunflower seeds and sunflower discs, meeting diverse harvesting needs.

CN224290745UActive Publication Date: 2026-05-29张达

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
张达
Filing Date
2025-07-07
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing sunflower combine harvesters do not completely separate seeds and kernels, resulting in wasted seeds and an inability to selectively adjust the harvesting method according to demand, increasing labor costs.

Method used

A sunflower harvesting and threshing integrated device was designed, including a harvesting platform, a reeling auger, a threshing unit, and a climbing machine. The sunflower heads are conveyed by the reeling auger, the threshing unit uses a dispersing rod and a threshing drum to thresh the seeds, and the climbing machine is used for storing or discarding the sunflower heads to meet the needs of different users.

Benefits of technology

It enables the separation and independent conveying of sunflower seeds and sunflower heads, meeting the harvesting needs of different users and reducing waste and labor costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sunflower harvesting and threshing integrated device relates to sunflower harvesting technical field, including harvesting platform, the fixed welding of a plurality of strip partition plates has in the bottom wall of harvesting platform and is rotated and is arranged between the both side walls of harvesting platform and is arranged in the pronging auger, is equipped with the material guiding mouth of pronging auger rear side on harvesting platform, and the threshing part has sieve plate no.
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Description

Technical Field

[0001] This utility model relates to the field of sunflower harvesting technology, specifically to an integrated sunflower harvesting and threshing device. Background Technology

[0002] Sunflower seeds are the fruit of the sunflower and are a popular snack and edible oil source. The most common way to eat them is to roast or roast them and then shell them directly. Sunflower seeds can be added to various pastries, such as bread, cookies, and cakes, to enhance their flavor and nutritional value. Oil-producing sunflower seeds can be processed into sunflower seed oil through pressing or solvent extraction. Sunflower seed oil is a healthy edible oil suitable for cooking various dishes, especially cold dishes, as it preserves the original flavor and nutrients of the food.

[0003] Existing sunflower combine harvesters have issues with incomplete seed-and-seed separation, resulting in a large amount of seeds being discarded and wasted. During mechanical harvesting, due to varying harvesting needs, some farmers do not require sunflower heads to be collected, so the harvester simply discharges the harvested heads directly from the side of the harvester. However, other farmers do require sunflower heads to be collected, and the harvester cannot selectively adjust its harvesting method according to these needs, requiring additional manpower for collection, which wastes manpower and increases harvesting costs. Utility Model Content

[0004] The purpose of this invention is to provide a sunflower harvesting and threshing integrated device to solve the problems mentioned in the background art.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a sunflower harvesting and threshing integrated device, including a harvesting platform, wherein multiple strip partition plates are fixedly welded to the bottom wall of the harvesting platform and a auger rotatably arranged between the two inner side walls of the harvesting platform;

[0006] The threshing unit has a guide port located behind the auger on the harvesting platform. The threshing unit has a screen plate and multiple threshing drums rotatably arranged directly above the screen plate. There is a gap between the threshing drums and the screen plate. Multiple material leakage gaps are opened on the screen plate. The screen plate is used to receive the sunflower discs introduced by the guide port. Multiple dispersing rods are welded to the radial sidewalls of the threshing drums. The outer wall of the dispersing rods is covered with rubber sleeves. The multiple threshing drums rotate synchronously and in the same direction. When the dispersing rods rotate past the sunflower discs, they push them along the screen plate. At the same time, the dispersing rods knock the sunflower discs to thresh the grains.

[0007] In a further embodiment, a feeding gap is left between two adjacent strip partitions for sunflower stalks to enter. The side wall of the harvesting table where the strip partitions are installed and the two adjacent strip partitions form a blocking platform that can separate the sunflower heads from the stalks.

[0008] In a further embodiment, the upper end face of the strip partition plate is equipped with partition brushes arranged in a straight line on both side walls, and the ends of the partition brushes of two adjacent strip partition plates are in contact with each other.

[0009] In a further embodiment, a transmission rod is rotatably provided between the two inner side walls of the harvesting platform, and the radial side wall of the transmission rod is provided with multiple arc-shaped actuating surfaces.

[0010] In a further embodiment, the radial sidewalls at both ends of the auger are provided with spiral blades, which are symmetrically distributed. When the auger rotates, the two spiral blades are used to convey the harvested sunflower heads to the middle position of the auger.

[0011] In a further embodiment, a plurality of actuating plates are fixed to the radial sidewall at the middle position of the auger. The actuating plates rotate synchronously with the auger to push the harvested sunflower heads into the feed inlet.

[0012] In a further embodiment, a second sieve plate is also included, which is connected to the first sieve plate and is inclined upward.

[0013] The two long side walls of the screen plate 1 and screen plate 2 are each provided with two baffles and multiple steel bars welded together. The two outermost steel bars are welded to the two baffles respectively. The gap between two adjacent steel bars is the material leakage gap, and the space between the two baffles is the material drop space.

[0014] The steel bars of the first sieve plate are bent downwards and have multiple bends. The bends are located directly below the threshing drums. The multiple threshing drums rotate synchronously, and the dispersing rod moves the sunflower disc to pass through each bend in sequence.

[0015] In a further embodiment, the reinforcing bars of the second sieve plate are also bent downwards to form a curved section. Two curved sections are provided, and a threshing roller is rotatably mounted above one of the curved sections.

[0016] It also includes a climbing machine, which includes a rectangular hollow shell with an inclined distribution, a drive shaft rotatably disposed at the upper and lower ends inside the rectangular hollow shell, and a drive chain wound between the two drive shafts. The drive chain has two branches, and multiple toothed plates are fixedly installed between the two drive chains. The lower opening of the rectangular hollow shell extends to the top of the second sieve plate, and the drive shaft located on the lower side is located above another curved part of the second sieve plate.

[0017] In a further embodiment, the upper opening of the rectangular hollow shell is used to connect an external storage box;

[0018] A material distribution port is provided at the bottom end of the side wall of the rectangular hollow shell facing away from the screen plate 2. The material distribution port is equipped with a detachable sealing plate by bolts.

[0019] In a further embodiment, the threshing component further includes a housing for mounting a first sieve plate, a second sieve plate, and a plurality of threshing drums, wherein the threshing drums are rotatably disposed on the inner wall of the housing, and the baffles are welded to the inner wall of the housing;

[0020] A receiving hopper is installed on the side wall of the housing, located directly below the dispensing port. A discharge auger is rotatably installed inside the receiving hopper, and a discharge notch is opened on the side wall of the receiving hopper.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This utility model is a sunflower harvesting and threshing integrated device, which has the functions of harvesting and threshing in one step. At the same time, it can separately collect sunflower seeds and sunflower heads according to needs, or only collect sunflower seeds and directly export and discard the sunflower heads, so as to meet the harvesting needs of different users. It is simple and practical. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model;

[0024] Figure 2 This is a schematic diagram of the main structure and the assembly structure of the storage box in an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the auger structure of a harvester according to an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the climbing machine structure according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of the assembly structure of the climbing machine, screen plate one, screen plate two and multiple unloading rollers according to an embodiment of the present utility model;

[0028] Figure 6 This is a schematic diagram of the transmission rod structure according to an embodiment of the present utility model;

[0029] Figure 7 This is a schematic diagram of a further improved harvesting platform according to an embodiment of the present utility model.

[0030] In the diagram: 1. Harvesting table; 11. Threshing auger; 111. Actuating plate; 12. Drive rod; 13. Strip partition plate; 2. Shell; 21. Threshing drum; 22. Dispersing rod; 23. Conveyor belt; 24. Screen plate one; 25. Screen plate two; 3. Receiving hopper; 31. Discharge auger; 4. Rectangular hollow shell; 41. Sealing plate; 42. Drive shaft; 43. Drive chain; 44. Toothed plate. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This embodiment provides a sunflower harvesting and threshing integrated device, such as... Figure 1 and Figure 2 As shown, the harvesting platform includes a harvesting stand 1, with multiple strip-shaped partitions 13 fixedly welded to the inner bottom wall of the harvesting stand 1, and a auger 11 rotatably disposed between the two inner side walls of the harvesting stand 1. Specifically, a feeding gap is left between two adjacent strip-shaped partitions 13 for the sunflower stalks to enter. The side walls of the harvesting stand 1 where the strip-shaped partitions 13 are installed and the adjacent two strip-shaped partitions 13 form a blocking platform that can separate the sunflower heads from the stalks. The harvesting stand 1 is assembled with the pre-installed position of the self-propelled harvester. The harvester drives the harvesting stand 1 to move synchronously and provides power for raising and lowering the harvesting stand 1, raising it 50-100cm off the ground, but not exceeding the height of the sunflower heads. As the harvesting platform 1 moves forward, the sunflower stalks enter the space between two adjacent strip partitions 13. When the stalks come into contact with the side wall of the strip partitions 13 inside the harvesting platform 1, as the harvesting platform 1 continues to move forward, the stalks are bent, and the sunflower heads eventually fall onto the blocking platform. The diameter of the sunflower heads is larger than the gap between the two adjacent strip partitions 13, which eventually allows the sunflower heads to break free from the stalks.

[0033] Furthermore, such as Figure 7 As shown, baffle brushes arranged in a straight line are installed on both sides of the upper end face of the strip partition plate 13, with the ends of the baffle brushes of two adjacent strip partition plates 13 contacting each other. By setting the brushes, they possess the characteristic of being flexible and deformable, ensuring that the straw does not interfere with the feeding gap between two adjacent strip partition plates 13. This prevents sunflower seeds from detaching from the sunflower head and falling into the feeding gap during harvesting, thus avoiding waste.

[0034] like Figure 1 and Figure 3As shown, spiral blades are provided on the radial sidewalls at both ends of the auger 11, with two spiral blades symmetrically distributed. The harvester provides rotational power to the auger 11. When the auger 11 rotates, the two spiral blades are used to convey the harvested sunflower heads towards the center of the auger 11. Two rotating blades guide the harvested sunflower heads towards the center. Multiple actuating blades 111 are fixed to the radial sidewall of the center of the auger 11. The actuating blades 111 rotate synchronously with the auger 11, and are used to push the harvested sunflower heads into the feed inlet. The harvesting platform 1 has a feed inlet located behind the auger 11. The rotating auger 11 will drive the multiple actuating blades 111 to rotate synchronously, which can push the sunflower heads that have gathered together to the feed inlet.

[0035] Meanwhile, a transmission rod 12 is also rotatably installed between the two inner side walls of the harvesting platform 1, such as... Figure 6 As shown, the radial sidewall of the transmission rod 12 has multiple arc-shaped actuating surfaces. The harvester uses the rotation of the transmission rod 12 to bend the straw towards the auger 11, ensuring that the sunflower heads can be quickly and effectively detached from the straw and secured on the blocking platform. Furthermore, the rotating transmission rod 12 prevents the sunflower heads from falling to the ground from the front of the harvesting table 1.

[0036] After the sunflower heads are harvested and separated from the stalks, they need to be threshed. Specifically, as follows: Figure 1 and Figure 5 As shown, this embodiment also discloses a threshing component, which includes a screen plate 24 and multiple threshing rollers 21 rotatably disposed directly above the screen plate 24. A gap is left between the threshing rollers 21 and the screen plate 24. Multiple material leakage gaps are provided on the screen plate 24. The component also includes a screen plate 25 installed on the inner wall of the housing 2, which is connected to the screen plate 24 and is inclined upwards. The threshing component further includes a housing 2 for mounting the screen plate 24, the screen plate 25, and the multiple threshing rollers 21. The threshing rollers 21 are rotatably disposed on the inner wall of the housing 2, and baffles are welded to the inner wall of the housing 2. The harvester provides rotational power to the threshing rollers 21. Two baffles and multiple welded steel bars are provided on the two long sidewalls of the screen plate 24 and the screen plate 25. The two outermost steel bars are welded to the two baffles respectively. The gap between two adjacent steel bars is a material leakage gap, and the space between the two baffles is a material drop space. The steel bars of the sieve plate 24 are bent downwards and have multiple bends. The bends are located directly below the threshing drum 21. The multiple threshing drums 21 rotate synchronously, and the dispersing rod 22 moves the sunflower disc to pass through each bend in turn.

[0037] Screen plate 24 is located at the opening of the feed inlet and is used to receive the sunflower discs introduced from the feed inlet. Multiple dispersing rods 22 are welded to the radial sidewalls of the threshing drum 21. Multiple threshing drums 21 rotate synchronously and in the same direction. Figure 5As shown, there are four threshing rollers 21 above the sieve plate 24. The gap between the dispersing rod 22 and the sieve plate 24 serves as a guide space for the sunflower heads. When the dispersing rod 22 rotates, it passes over the sunflower heads, pushing them along the sieve plate 24. Simultaneously, the rotating dispersing rod 22 generates a momentary impact force upon contacting the sunflower heads, quickly shaking the sunflower seeds off. A conveyor belt 23 is located directly below the sieve plate 24. The harvester provides power to the conveyor belt 23, and the sunflower seeds fall through the gaps onto it, where they are then guided out for subsequent storage.

[0038] Furthermore, it should be noted that by providing a rubber sleeve on the outer wall of the dispersing rod 22, the surface gloss of the sunflower seeds can be protected from wear and tear during the dispersing process, thus preventing damage to the appearance and avoiding breakage of the sunflower seeds, which would affect the yield.

[0039] The sunflower heads remain on sieve plate 24 and are pushed onto sieve plate 25 by the rotating dispersing rods 22 on the four threshing rollers 21. Here, as... Figure 5 As shown, the steel bars of the second sieve plate 25 are also bent downwards and have two bending parts. A threshing roller 21 is rotated above one of the bending parts. The purpose of the threshing roller 21 is to continue to push the threshed sunflower discs laterally along the second sieve plate 25.

[0040] like Figure 4 As shown, the system also includes a climbing mechanism, which comprises an inclined rectangular hollow shell 4, drive shafts 42 rotatably disposed at the upper and lower ends within the rectangular hollow shell 4, and drive chains 43 wound between the two drive shafts 42. Two drive chains 43 are provided, and multiple toothed plates 44 are fixedly installed between the two drive chains 43. The lower opening of the rectangular hollow shell 4 extends above the second sieve plate 25, and the lower drive shaft 42 is located above another curved portion of the second sieve plate 25. The harvester provides power to the drive shafts 42.

[0041] pass Figure 2 As can be shown, the upper opening of the rectangular hollow shell 4 is used to connect to an external storage box; the sunflower disc conveyed along the sieve plate 25 is inserted by the tooth tip of the toothed plate 44 on the transmission chain 43, and then is sent into the rectangular hollow shell 4 along the transmission chain 43, and is guided upward along the rectangular hollow shell 4. When the sunflower disc is sent to the opening of the rectangular hollow shell 4, at the bending position of the transmission chain 43, the sunflower disc is pushed off by the side wall of the upper opening of the rectangular hollow shell 4 and enters the storage box.

[0042] Because different users have different needs, some users do not need to recycle sunflower heads, so there is no need to recycle and store them. For example... Figure 4As shown, a material distribution port is provided at the bottom of the side wall of the rectangular hollow shell 4 opposite to the screen plate 25. A detachable sealing plate 41 is installed at the material distribution port by bolts. By removing the bolts, the sealing plate 41 can be removed. At this time, the material distribution port is in an open state, and its height is much lower than the upper opening height of the rectangular hollow shell 4. In this way, when the sunflower disc is pushed along the inside of the rectangular hollow shell 4 by the toothed plate 44, when it reaches the material distribution port, the sunflower disc will be exposed outside the material distribution port. As the toothed plate 44 continues to convey, the sunflower disc is pushed off by the side wall of the material distribution port opening and falls from the material distribution port.

[0043] Meanwhile, a receiving hopper 3 is installed on the side wall of the casing 2, located directly below the distributing port. A discharge auger 31 is rotatably installed inside the receiving hopper 3, and a discharge notch is opened on the side wall of the receiving hopper 3. Sunflower heads falling from the distributing port fall into the receiving hopper 3. The harvester provides rotational power to the discharge auger 31, which rotates to guide the sunflower heads in the receiving hopper 3 out through the discharge notch, eliminating the need for collection.

[0044] At this point, the sunflower heads and sunflower seeds are separated and transported for storage independently.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sunflower harvesting and threshing integrated device, characterized in that, include: Harvesting platform (1), the bottom wall of the harvesting platform (1) is fixedly welded with multiple strip partition plates (13) and a auger (11) that is rotatably set between the two inner side walls of the harvesting platform (1). The threshing unit has a guide port located behind the auger (11) on the harvesting table (1). The threshing unit has a screen plate (24) and multiple threshing rollers (21) rotatably arranged directly above the screen plate (24). There is a gap between the threshing rollers (21) and the screen plate (24). Multiple material leakage gaps are opened on the screen plate (24). The screen plate (24) is used to receive the sunflower disc introduced by the guide port. Multiple dispersing rods (22) are welded to the radial side wall of the threshing rollers (21). The outer wall of the dispersing rods (22) is covered with rubber sleeves. The multiple threshing rollers (21) rotate synchronously and in the same direction. When the dispersing rods (22) rotate past the sunflower disc, they push it along the screen plate (24). At the same time, the dispersing rods (22) knock the sunflower disc to thresh it.

2. The sunflower harvesting and threshing integrated device according to claim 1, characterized in that, A feeding gap is left between two adjacent strip partitions (13) for sunflower stalks to enter. The side wall of the strip partition (13) installed in the harvesting table (1) and the two adjacent strip partitions (13) form a blocking platform, which can separate the sunflower heads from the stalks.

3. The sunflower harvesting and threshing integrated device according to claim 1, characterized in that, The upper surface of the strip partition (13) is equipped with partition brushes arranged in a straight line on both sides of the upper end face, and the ends of the partition brushes of two adjacent strip partitions (13) are in contact with each other.

4. The sunflower harvesting and threshing integrated device according to claim 1, characterized in that, A transmission rod (12) is also rotatably provided between the two inner side walls of the harvesting platform (1), and the radial side wall of the transmission rod (12) is provided with multiple arc-shaped actuating surfaces.

5. The sunflower harvesting and threshing integrated device according to claim 1, characterized in that, The sunflower auger (11) has spiral blades on both radial sidewalls at both ends. The two spiral blades are symmetrically distributed. When the sunflower auger (11) rotates, the two spiral blades are used to transport the harvested sunflower heads to the middle position of the sunflower auger (11).

6. The sunflower harvesting and threshing integrated device according to claim 4, characterized in that, Multiple actuating plates (111) are fixed to the radial side wall at the middle position of the auger (11). The actuating plates (111) rotate synchronously with the auger (11) to push the harvested sunflower heads into the feed inlet.

7. The sunflower harvesting and threshing integrated device according to claim 1, characterized in that, It also includes a second sieve plate (25) installed on the inner wall of the housing (2), the second sieve plate (25) being connected to the first sieve plate (24), and the second sieve plate (25) being inclined upward; The two long side walls of the screen plate 1 (24) and screen plate 2 (25) are provided with two baffles and multiple steel bars welded together. The two outermost steel bars are welded to the two baffles respectively. The gap between the two adjacent steel bars is the material leakage gap, and the space between the two baffles is the material drop space. The screen plate 1 (24) is provided with a conveyor belt (23) directly below it. The steel bars of the sieve plate (24) are bent downwards and have multiple bends. The bends are located directly below the threshing drum (21). The multiple threshing drums (21) rotate synchronously, and the scattering rod (22) moves the sunflower disc to pass through each bend in sequence.

8. The sunflower harvesting and threshing integrated device according to claim 7, characterized in that, The steel bars of the second sieve plate (25) are also bent downwards and have two bending parts. A threshing drum (21) is provided above one bending part. It also includes a climbing machine, which includes a rectangular hollow shell (4) with an inclined distribution, a drive shaft (42) rotatably disposed at the upper and lower ends inside the rectangular hollow shell (4), and a drive chain (43) wound between the two drive shafts (42). The drive chain (43) has two branches, and multiple toothed plates (44) are fixedly installed between the two drive chains (43). The lower opening of the rectangular hollow shell (4) extends to the top of the second sieve plate (25), and the drive shaft (42) located on the lower side is located above another curved part of the second sieve plate (25).

9. The sunflower harvesting and threshing integrated device according to claim 8, characterized in that, The upper opening of the rectangular hollow shell (4) is used to connect an external storage box; The rectangular hollow shell (4) has a material distribution port at the bottom of the side wall opposite to the screen plate (25), and the material distribution port is fitted with a detachable sealing plate (41) by bolts.

10. The sunflower harvesting and threshing integrated device according to claim 9, characterized in that, The threshing unit also includes a housing (2) for mounting a first sieve plate (24), a second sieve plate (25) and a plurality of threshing drums (21), wherein the threshing drums (21) are rotatably disposed on the inner wall of the housing (2) and the baffles are welded to the inner wall of the housing (2); The housing (2) has a receiving hopper (3) located directly below the material distribution port installed on its side wall. The receiving hopper (3) is equipped with a discharge auger (31) that rotates inside it. The receiving hopper (3) has a discharge notch on its side wall.