A bridge threshing and sunflower disc throwing integrated structure of a sunflower harvester

Abstract

The utility model discloses a kind of overbridge threshing and sunflower tray throwing and sending integrated structure of sunflower harvester, including header, overbridge threshing device is arranged in header side, throwing and sending mechanism is arranged in overbridge threshing device side, throwing and sending mechanism includes transmission bin, transmission cylinder, separating screen bottom, several transmission cylinders are movably arranged in transmission bin inside by pivot, separating screen bottom is fixedly arranged in transmission bin inside lower end of transmission cylinder.This utility model can enter the throwing and sending mechanism of the device after preliminary threshing by overbridge threshing device, then in throwing and sending mechanism by constantly rotating transmission cylinder, sunflower tray can be transmitted to obliquely upper side, it can also be hit on sunflower tray surface simultaneously, so as to can play the role of threshing to sunflower tray, so it can be threshed and can be transported to obliquely upper side, so the device can be combined with prior art, so as to further improve the threshing capacity of device to sunflower tray, and it is convenient to throw and send sunflower tray to high place.

Description

Technical Field

[0001] This utility model relates to the field of sunflower harvester technology, specifically to an integrated structure for threshing and sunflower tray throwing of a sunflower harvester. Background Technology

[0002] Sunflower is an important economic crop in my country. To meet the country's demand for sunflowers, mechanized harvesting of sunflowers has become an inevitable trend.

[0003] Currently, sunflower harvesting machinery in my country is broadly divided into two types: one is machinery that directly harvests the sunflower heads, and the other is machinery that harvests the heads and then threshes them to obtain sunflower cake and seeds. The second type of machinery generally includes a vehicle body, a header mechanism, a conveying mechanism, a threshing mechanism, a cleaning mechanism, a sunflower cake collection box, and a seed collection box. Its harvesting principle is as follows: sunflower heads are pre-cut from the sunflower stalks and inserted upwards onto the stalks to allow the seeds to dry. After the seeds are dry, the harvester enters the field, the header mechanism removes the dried sunflower heads from the stalks, and then the heads enter the conveying mechanism and are fed into the threshing mechanism for threshing. Finally, the threshed seeds and sunflower cake are sent to the seed collection box and sunflower cake collection box respectively, and periodically emptied for collection.

[0004] In existing technologies, after sunflower heads are harvested, there is a bridge-type threshing structure to replace the conveying mechanism and additional threshing mechanism in the existing technology. For example, Chinese patent application number 202320498902.7 uses a bridge-type threshing structure to thresh and transport sunflower heads. However, the limited transport height makes it inconvenient to transport the threshed sunflower heads to the storage box. At the same time, the limited threshing distance makes it easy for incomplete threshing to occur. Therefore, in order to solve this problem, an integrated bridge-type threshing and sunflower head throwing structure is needed for the improvement of the sunflower harvester. Utility Model Content

[0005] The purpose of this utility model is to provide an integrated structure for threshing and sunflower tray throwing in a sunflower harvester, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sunflower harvester with an integrated structure for threshing and sunflower tray throwing, including a header, a threshing device on one side of the header, and a throwing mechanism on one side of the threshing device. The throwing mechanism includes a transmission chamber, transmission rollers, and a separating screen. Several transmission rollers are movably arranged inside the transmission chamber via a rotating shaft, and a separating screen is fixedly arranged at the lower end of the transmission rollers inside the transmission chamber.

[0007] Preferably, the throwing mechanism further includes a rotating shaft, a first fixed block, and a second fixed block. The rotating shaft is movably arranged on one side of the inside of the transmission chamber via a bearing. A separation screen bottom is fixedly arranged on the outside of the rotating shaft. The first fixed block is fixedly arranged on one side of the inside of the transmission chamber. The second fixed block is fixedly arranged on the surface of the separation screen bottom. The first fixed block and the second fixed block are connected by an elastic component.

[0008] Preferably, the elastic component is a damping cylinder, a spring, or a combination of a damping cylinder and a spring.

[0009] Preferably, a limit ring is fixedly provided at the movable end of the damping cylinder, and an adjusting screw is screwed into the lower end of the surface of the damping cylinder via a thread. A spring is sleeved between the limit ring and the adjusting screw on the surface of the damping cylinder. The spring can automatically push the damping cylinder to extend and reset, thereby moving the separating screen bottom upwards and back to its original position. By rotating the adjusting screw to adjust the initial compression of the spring, the downward movement threshold of the separating screen bottom can be changed each time.

[0010] Preferably, the separating sieve bottom is a strip sieve or a perforated sieve.

[0011] Preferably, the bottom of the separating screen is arc-shaped to conform to the rotation path of the conveyor roller.

[0012] Preferably, the separating sieve bottom is a flat sieve.

[0013] Preferably, a guide roller is movably arranged inside the cutting table via a rotating shaft. A spiral conveyor plate is wound around the surface of the guide roller, and a claw is fixedly arranged in the middle of the surface of the guide roller. This device can transport the sunflower disc inside the cutting table to the middle of the device through the guide roller and the spiral conveyor plate. Then, the claw transports the sunflower disc to the bridge threshing device. After the initial threshing by the bridge threshing device, it can enter the throwing mechanism of this device.

[0014] Preferably, a plurality of harvesting forks are uniformly and fixedly arranged on the surface of the cutting table. The harvesting forks can be used to easily remove the sunflower discs from the rod diameter, thereby guiding the sunflower discs into the interior of the cutting table.

[0015] Preferably, a plurality of levers are uniformly fixed on the surface of the conveying roller; the levers, in conjunction with the rotating conveying roller, can convey the sunflower trays obliquely upwards, and at the same time, they can strike the surface of the sunflower trays, thereby achieving the function of threshing the sunflower trays. Thus, it can perform both threshing and conveying.

[0016] Preferably, a chute is fixedly provided on one side of the lower end of the bridge threshing device, and a vibrating screen is provided at the lower end of the bridge threshing device and the conveying bin.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] After initial threshing by the bridge threshing device, the sunflower discs enter the throwing mechanism of this device. Subsequently, the throwing mechanism, through a continuously rotating transmission roller, can transport the sunflower discs obliquely upwards and simultaneously strike their surface, thus achieving the effect of threshing. In this way, it can both thresh and transport the sunflower discs obliquely upwards. This device can be combined with existing technology to further improve the device's threshing capacity for sunflower discs and facilitate the upward throwing of the sunflower discs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the integrated structure of the sunflower harvester with bridge threshing and sunflower tray throwing;

[0020] Figure 2 This is a side view of the integrated structure of a sunflower harvester with a bridge for threshing and a sunflower tray for throwing, according to this utility model.

[0021] Figure 3 This utility model relates to an integrated structure for threshing and sunflower tray throwing in a sunflower harvester. Figure 2 A magnified view of point A in the middle.

[0022] In the diagram: 1. Cutting table; 2. Threshing device; 3. Conveyor bin; 4. Conveyor drum; 5. Rotating shaft; 6. Separating screen bottom; 7. First fixed block; 8. Second fixed block; 9. Damping cylinder; 10. Limit ring; 11. Adjusting screw; 12. Spring; 13. Guide drum; 14. Spiral conveyor plate; 15. Claw; 16. Harvesting fork; 17. Lever; 18. Chute; 19. Vibrating screen. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1-3This utility model provides a technical solution: an integrated structure for threshing and sunflower tray throwing of a sunflower harvester, including a header 1. A threshing device 2 (the threshing device 2 is a Chinese patent with patent number 202320498902.7 in the prior art) is provided in the middle of one side of the header 1. A throwing mechanism is provided on one side of the threshing device 2. The throwing mechanism includes a transmission chamber 3, a transmission roller 4, a rotating shaft 5, a separating screen bottom 6, a first fixed block 7, a second fixed block 8, and a damping cylinder 9. The transmission chamber 3 is provided on one side of the threshing device 2. Several transmission rollers 4 are evenly and movably arranged inside the transmission chamber 3 through bearings. A rotating shaft 5 is movably arranged on one side of the transmission chamber 3 through bearings. A separating screen bottom 6 is fixedly arranged on the outside of the rotating shaft 5. A first fixed block 7 is fixedly arranged on one side of the transmission chamber 3. A second fixed block 8 is fixedly arranged on the surface of the separating screen bottom 6. The first fixed block 7 and the second fixed block 8 are provided with damping cylinders 9.

[0025] The movable end of the damping cylinder 9 is fixedly provided with a limit ring 10. The lower end of the surface of the damping cylinder 9 is provided with an adjusting screw 11 through a threaded connection. A spring 12 is sleeved between the limit ring 10 and the adjusting screw 11 on the surface of the damping cylinder 9. The spring 12 can automatically push the damping cylinder 9 to extend and reset, thereby moving the separation screen bottom 6 upward and reset. By rotating the adjusting screw 11 to adjust the initial compression degree of the spring 12, the downward movement threshold of the separation screen bottom 6 can be changed each time.

[0026] Inside the cutting platform 1, a guide roller 13 is movably arranged via a rotating shaft. A spiral conveyor plate 14 is wound around the surface of the guide roller 13, and a claw 15 is fixedly arranged in the middle of the surface of the guide roller 13. This device can transport the sunflower disc inside the cutting platform 1 to the middle of the device through the guide roller 13 and the spiral conveyor plate 14. Then, the sunflower disc is transported to the bridge threshing device 2 through the claw 15. After the initial threshing by the bridge threshing device 2, it can enter the throwing mechanism of this device.

[0027] A plurality of harvesting forks 16 are uniformly fixed on the surface of the cutting table 1. The harvesting forks 16 can be used to easily remove the sunflower discs from the rod diameter, thereby guiding the sunflower discs into the cutting table 1.

[0028] A number of levers 17 are uniformly fixed on the surface of the conveying roller 4; the levers 17 cooperate with the rotating conveying roller 4 to convey the sunflower trays obliquely upward, and at the same time, they can strike the surface of the sunflower trays, thereby playing a role in threshing the sunflower trays. Thus, it can both thresh and convey.

[0029] A chute 18 is fixedly installed on one side of the lower end of the bridge threshing device 2, and a vibrating screen 19 is installed at the lower end of the bridge threshing device 2 and the transmission chamber 3. The sunflower seeds that are separated by the bridge threshing device 2 can enter the vibrating screen 19 along the chute 18, and the sunflower seeds that are threshed by the transmission drum can also fall onto the vibrating screen 19 for vibration screening.

[0030] Working Principle: When using this device, the harvesting fork 16 can remove the sunflower discs from the stem, thus guiding them into the header 1. Then, the guide roller 13 and the spiral conveyor 14 transport the sunflower discs inside the header 1 towards the center of the device. Next, the pawl 15 transports the sunflower discs to the threshing device 2, where they undergo preliminary threshing. After this preliminary threshing, the sunflower discs enter the throwing mechanism of this device. There, the continuously rotating conveyor roller 4 propels the sunflower discs diagonally upwards. The sunflower seeds are conveyed in a line and can also be struck on the surface of the sunflower discs, thus threshing the seeds. This device can both thresh and convey the seeds obliquely upwards. This device can be combined with existing technology to further improve the threshing capacity of the sunflower discs and facilitate the upward throwing of the sunflower discs. Finally, the sunflower discs are conveyed to the top and thrown out by the uppermost conveyor roller 4 with the help of centrifugal force into the sunflower disc storage bin. The threshed sunflower seeds can be filtered by the separating screen bottom 6 and then conveyed to the sunflower seed storage device at the bottom of the device by the conveyor belt.

[0031] It should be noted that the bridge threshing device 2 in this application is a Chinese patent with patent number 202320498902.7 in the prior art. It is a mature prior art. This device can be used in conjunction with this patent to achieve better threshing and throwing effect on the sunflower trays.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] 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 harvester with an integrated structure for threshing and sunflower tray throwing, comprising a header (1), characterized in that: The cutting platform (1) is provided with a threshing device (2) on one side, and a throwing mechanism is provided on one side of the threshing device (2). The throwing mechanism includes a transmission chamber (3), a transmission roller (4), and a separating screen (6). Several transmission rollers (4) are movably arranged inside the transmission chamber (3) through a rotating shaft. A separating screen (6) is fixedly arranged at the lower end of the transmission rollers (4) inside the transmission chamber (3).

2. The integrated structure for threshing and sunflower tray throwing of a sunflower harvester according to claim 1, characterized in that: The throwing mechanism also includes a rotating shaft (5), a first fixed block (7), and a second fixed block (8). The rotating shaft (5) is movably arranged on one side of the inside of the transmission chamber (3) via a bearing. A separation screen bottom (6) is fixedly arranged on the outside of the rotating shaft (5). The first fixed block (7) is fixedly arranged on one side of the inside of the transmission chamber (3). The second fixed block (8) is fixedly arranged on the surface of the separation screen bottom (6). The first fixed block (7) and the second fixed block (8) are connected by an elastic component.

3. The integrated bridge threshing and sunflower head throwing structure of a sunflower harvester according to claim 2, characterized in that: The elastic component is a damping cylinder (9), or a spring (12), or a combination of a damping cylinder (9) and a spring (12).

4. The integrated bridge threshing and pedicle throwing system of a sunflower harvester as claimed in claim 3 wherein: The movable end of the damping cylinder (9) is fixedly provided with a limit ring (10), and the lower end of the surface of the damping cylinder (9) is provided with an adjusting screw (11) by means of a thread. A spring (12) is sleeved between the limit ring (10) and the adjusting screw (11) on the surface of the damping cylinder (9).

5. The integrated bridge threshing and pedicle throwing system of claim 1, wherein: The separating sieve bottom (6) is a strip sieve or a perforated sieve.

6. The integrated bridge threshing and pedicle throwing system of a sunflower harvester as claimed in claim 1 wherein: The separating screen bottom (6) is arc-shaped to fit the rotation path of the conveyor roller (4).

7. The integrated bridge threshing and pedicle throwing system of a sunflower harvester as claimed in claim 1 wherein: The separating sieve bottom (6) is a flat sieve.

8. The integrated bridge threshing and pedicle throwing system of a sunflower harvester as claimed in claim 1 wherein: Inside the cutting table (1), a guide roller (13) is movably arranged via a rotating shaft. A spiral transmission plate (14) is wound around the surface of the guide roller (13), and a claw (15) is fixedly arranged in the middle of the surface of the guide roller (13).

9. The integrated bridge threshing and pedicle throwing system of a sunflower harvester as claimed in claim 1 wherein: Several levers (17) are uniformly fixed on the surface of the transmission roller (4).

10. The integrated bridge threshing and pedicle throwing system of a sunflower harvester as claimed in claim 1 wherein: A chute (18) is fixedly installed on one side of the lower end of the bridge threshing device (2), and a vibrating screen (19) is installed at the lower end of the bridge threshing device (2) and the transmission bin (3).

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