Automatic screening device for wheat breeding

Abstract

The utility model discloses an automatic screening device for wheat breeding, and relates to the technical field of seed screening devices. The screening device comprises a screening box, a feeding port is fixedly formed in the top of the screening box, an obliquely-arranged discharging plate is fixedly arranged in the screening box and located below the feeding port, and a control plate is rotationally arranged on the face, opposite to the discharging plate, in the screening box. A first control assembly is mounted on the side, away from the discharging plate, of the control plate, and a fan assembly is fixedly mounted on the side, located below the control plate and close to the discharging plate, in the screening box. The first control assembly can drive the control panel and the bottom of the blanking plate to be repeatedly opened and closed, so that the blanking frequency of seeds and the blanking quantity of each time are controlled, and the situation that light impurities in the seeds cannot be blown away by a subsequent fan due to the fact that the seeds directly enter the blanking plate at a time is prevented; and the screening effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of seed screening devices, specifically an automated screening device for wheat breeding. Background Technology

[0002] Wheat is an important food crop and is widely consumed around the world. my country's status as a major food producer is inseparable from the hard work of agricultural workers. Wheat breeding requires multiple screening processes to remove rotten, bad, or poorly developed seeds that are unlikely to grow into seedlings.

[0003] Application No.: "CN202021895544.6" A screening device for wheat breeding includes: a shell; a feed inlet at the top of the shell, with an iron remover surrounding the feed inlet; a fan located on one side of the upper interior of the shell, with a ventilation window on the side corresponding to the fan, the ventilation window having a strip-shaped air vent; a motor located inside the shell, the motor being connected to the inner wall of the shell; a crankshaft connected to the output shaft of the motor, the crankshaft being connected to a first connecting rod, the other end of the first connecting rod being connected to a coarse screen, and buffer mechanisms located at both ends of the coarse screen on the side away from the first connecting rod, the coarse screen being connected to the inner wall of the shell through the buffer mechanisms; through multiple screenings, wheat straw and iron filings are removed, the screening is fully automatic, saving labor, with high screening efficiency, good seed screening effect, and easy to use;

[0004] In the aforementioned patent, when seeds are put into the shell for screening, the top feed inlet does not have a structure to restrict the material flow. As a result, when the fan blows to remove light impurities, the raw material will be fed in directly without any restriction. This will affect the fan's ability to remove impurities mixed in with the seeds. Utility Model Content

[0005] In order to solve the above problems, the purpose of this utility model is to provide an automated screening device for wheat breeding.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an automated screening device for wheat breeding, comprising a screening box, a feed inlet fixedly mounted on the top of the screening box, a feed plate fixedly mounted below the feed inlet inside the screening box at an incline, a control plate rotatably mounted on the side of the screening box opposite to the feed plate, a first control component mounted on the side of the control plate away from the feed plate, a fan assembly fixedly mounted on the side of the screening box below the control plate and close to the feed plate, a first screening plate positioned below the fan assembly inside the screening box, a second screening plate positioned parallel to the first screening plate, connecting plates with an indentation at both ends of the first and second screening plates, the connecting plates movably penetrating through the screening box, and a second control component identical to the first control component positioned outside the connecting plate close to the first screening plate.

[0007] Preferably, the first control component includes a movable plate with a rectangular groove extending through its middle end. Two diagonal arc-shaped grooves are formed in the rectangular groove. The end of the movable plate near the control plate is connected to the control plate via a hinge block. A support rod is fixedly mounted on the end of the movable plate away from the control plate, and the support rod movably extends through the screening box. A Y-shaped pushing block is provided within the rectangular groove, and a rotating shaft is rotatably mounted on the middle end of the pushing block.

[0008] Preferably, the linkage structure includes a first drive shaft, which is rotatably mounted on the screening box and located below the support rod. The first drive shaft is connected to the rotating shaft in the first control component by two meshing gears. A second drive shaft is rotatably mounted on the screening box below the first drive shaft. A large gear is fixed on the first drive shaft, and a small gear that meshes with the large gear is fixed on the second drive shaft. The top of the rotating shaft on the second control component is connected to the second drive shaft by two meshing bevel gears.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] 1. In this utility model, the first control component can drive the control board and the bottom of the feeding plate to repeatedly open and close, thereby controlling the feeding frequency and the amount of seeds fed each time, preventing the seeds from entering directly at once and causing the subsequent fan to be unable to blow away some of the light impurities, thus increasing the screening effect;

[0011] 2. In this utility model, the drive of the control board is linked with the first and second screening plates below, which increases the overall linkage of the device. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the internal structure of the screening box of this utility model.

[0015] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0016] Figure 4 This is a schematic diagram of the structure of the first and second screening plates of this utility model.

[0017] In the diagram: 1. Screening box; 11. Feed inlet; 12. Discharge plate; 13. Control board; 14. Fan assembly; 15. Collection frame; 2. First control component; 21. Movable plate; 22. Rectangular groove; 23. Arc groove; 24. Rotating shaft; 25. Push block; 26. Support rod; 3. First screening plate; 31. Second screening plate; 32. Connecting plate; 33. Connecting block; 4. Second control component; 5. First drive shaft; 51. Second drive shaft; 52. Large gear; 53. Small gear; 54. Drive motor; 6. Door panel. Detailed Implementation

[0018] 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.

[0019] Example: Figure 1-4As shown, this utility model provides an automated screening device for wheat breeding, including a screening box 1. A feed inlet 11 is fixedly installed on the top of the screening box 1. An inclined feeding plate 12 is fixedly installed inside the screening box 1 below the feed inlet 11. A control plate 13 is rotatably mounted on the side of the screening box 1 opposite to the feeding plate 12. A first control component 2 is installed on the side of the control plate 13 away from the feeding plate 12. A fan assembly 14 is fixedly installed inside the screening box 1 below the control plate 13 and close to the feeding plate 12. A first screening plate 3 is located below the fan assembly 14 inside the screening box 1. A second screening plate 2 is arranged parallel to the first screening plate 3 below it. The screening plate 31, the first screening plate 3, and the second screening plate 31 are all connected to the two ends of the screening plate 31 with a U-shaped connecting plate 32. The two ends of the first screening plate 3 and the second screening plate 31 are all fixed with an inverted U-shaped connecting block 33. The end of the connecting block 33 away from the screening plate is movably inserted into the end of the connecting plate 32 located in the screening box 1. By inserting the inverted U-shaped block into the connecting plate 32, the installation of the first screening plate 3 and the second screening plate 31 can be quickly completed. When disassembling, it is only necessary to lift it upwards, which is convenient to operate. The connecting plate 32 movably passes through the screening box 1. The outside of the connecting plate 32 near the first screening plate 3 is provided with a second control component 4 that is the same as the first control component 2.

[0020] The first control component 2 includes a movable plate 21. A rectangular groove 22 is formed through the middle end of the movable plate 21. Arc-shaped grooves 23 are formed at two opposite corners of the rectangular groove 22. The end of the movable plate 21 near the control plate 13 is connected to the control plate 13 through a hinge block. A support rod 26 is fixedly provided at the end of the movable plate 21 away from the control plate 13 and the support rod 26 moves through the screening box 1. A Y-shaped push block 25 is provided in the rectangular groove 22. A rotating shaft 24 is provided at the middle end of the push block 25. Through the above operation, the control plate 13 can be pushed to swing continuously, so that the control plate 13 and the feeding plate 12 are repeatedly opened and closed, thereby fixing the discharge.

[0021] The movable plate 21 in the second control component 4 is located at the middle position of one end of the connecting plate 32 on the outer wall of the screening box 1, and the two ends of the movable plate 21 in the second control component 4 are not connected to any structure. A linkage structure is provided between the rotating shaft 24 in the first control component 2 and the second control component 4. The linkage structure includes a first drive shaft 5, which is rotatably mounted on the screening box 1 and located below the support rod 26. The first drive shaft 5 is connected to the rotating shaft 24 in the first control component 2 by two meshing gears. A rotating shaft 24 is located on the screening box 1 below the first drive shaft 5. The second drive shaft 51 has a large gear 52 fixed on the first drive shaft 5 and a small gear 53 fixed on the second drive shaft 51 that meshes with the large gear 52. The large gear 52 drives the small gear 53 to rotate, which makes the moving plate 21 of the second control component 4 move at a higher frequency than the moving plate 21 in the first control component 2. This results in a faster shaking frequency between the first screening plate 3 and the second screening plate 31, improving the screening effect. The top of the rotating shaft 24 on the second control component 4 is connected to the second drive shaft 51 through two meshing bevel gears.

[0022] A drive motor 54 is fixedly installed on the outer wall of the screening box 1 near the first drive shaft 5. The output end of the drive motor 54 is coaxially fixed on the first drive shaft 5. The drive motor 54 can provide power for the screening of the device, making it convenient for operators to operate.

[0023] A collection frame 15 is fixedly installed at one end of the screening box 1 opposite to the fan assembly 14. A vent is provided on the inner wall of the screening box 1 above the collection frame 15. The collection frame 15 is used to blow some light impurities blown by the fan assembly 14 into the collection frame 15 for direct collection. The vent ensures gas convection. A door panel 6 is installed on one side of the screening box 1. The door panel 6 can be opened to inspect the internal structure of the screening box 1 and clean the impurities remaining after screening.

[0024] Working principle: During use, the operator can directly put the seeds to be screened into the feed inlet 11. At this time, the drive motor 54 works, driving the first transmission shaft 5 to rotate. The rotating first transmission shaft 5 will directly drive the rotating shaft 24 in the first control component 2 to rotate. At this time, the rotating shaft 24 in the first control component 2 will drive the push block 25 fixed at the top to rotate. One end of the push block 25 will abut against one side of the rectangular groove 22. Driven by the push block 25, the movable plate 21 will move towards the side of the push block 25 that is in contact with the rectangular groove 22. After the end of the push block 25 rotates into the arc groove 23, the other end of the push block 25 will abut against the other side of the rectangular groove 22. At this time, the movable plate 21 will be driven to return to its original position. As the push block 25 rotates continuously, the push block 25 will drive the movable plate 21 to rotate at the end. The frequency of opening between the control plate 13 and the feeding plate 12 is set to prevent all the seeds from directly entering the screening box 1. Each time a portion falls, the fallen seeds will first be blown by the fan assembly 14, so that some light impurities mixed in will be blown into the collection frame 15 for collection. Then the seeds will fall onto the first screening plate 3.

[0025] When the drive motor 54 drives the first transmission shaft 5 to rotate, the first transmission shaft 5 will directly drive the small gear 53 to rotate through the large gear 52. The small gear 53 will drive the second transmission shaft 51 to drive the rotating shaft 24 on the second control component 4 to rotate. This will cause the movable plate 21 on the second control component 4 to drive the connecting plate 32 to move back and forth quickly and repeatedly. This will allow the connecting plate 32 to drive the first screening plate 3 and the second screening plate 31 to move left and right quickly and repeatedly. This will filter out some large particles of impurities that fall onto the first screening plate 3. Then the seeds will fall onto the second screening plate 31 below. The second screening plate 31 will further screen the seeds. The staff can set a collection box at the bottom of the screening box 1 to collect the screened seeds.

[0026] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An automated screening device for wheat breeding comprising a screening box (1), characterized in that: The top of the screening box (1) is fixedly provided with an installation inlet (11), a discharge plate (12) is fixedly arranged in the screening box (1) below the installation inlet (11) and is arranged in an inclined manner, a control plate (13) is rotatably arranged on the side of the screening box (1) opposite to the discharge plate (12), a first control assembly (2) is arranged on the side of the control plate (13) away from the discharge plate (12), a fan assembly (14) is fixedly arranged on the side of the screening box (1) below the control plate (13) and close to the discharge plate (12), a first screening plate (3) is arranged in the screening box (1) below the fan assembly (14), a second screening plate (31) is arranged in parallel with the first screening plate (3), connecting plates (32) are arranged at the two ends of the first screening plate (3) and the second screening plate (31) and are arranged in a mouth shape, the connecting plates (32) are movably arranged through the screening box (1), and a second control assembly (4) is arranged on the outer side of the connecting plate (32) close to the first screening plate (3) and is arranged in the same manner as the first control assembly (2).

2. The automated screening device for wheat breeding of claim 1, wherein, The first control assembly (2) comprises a movable plate (21), a rectangular groove (22) is arranged in the middle of the movable plate (21), arc-shaped grooves (23) are arranged at two opposite corners of the rectangular groove (22), one end of the movable plate (21) close to the control plate (13) is connected to the control plate (13) through a hinge block, a support rod (26) is fixedly arranged at the end of the movable plate (21) away from the control plate (13) and movably arranged through the screening box (1), and a push block (25) is arranged in the rectangular groove (22) and arranged in a Y shape, and a rotating shaft (24) is rotatably arranged at the middle end of the push block (25).

3. The automated screening device for wheat breeding of claim 2, wherein, The movable plate (21) of the second control assembly (4) is arranged at the middle position of the connecting plate (32) at one end of the outer wall of the screening box (1), and the two ends of the movable plate (21) of the second control assembly (4) are not connected to any structure, and a linkage structure is arranged between the rotating shafts (24) of the first control assembly (2) and the second control assembly (4).

4. The automated screening device for wheat breeding of claim 3, wherein, The linkage structure comprises a first transmission shaft (5), the first transmission shaft (5) is rotatably arranged on the screening box (1) and below the support rod (26), the first transmission shaft (5) is connected between the rotating shafts (24) of the first control assembly (2) through two meshing gears, a second transmission shaft (51) is rotatably arranged below the first transmission shaft (5) on the screening box (1), a large gear (52) is fixedly arranged on the first transmission shaft (5), a small gear (53) is fixedly arranged on the second transmission shaft (51) and meshes with the large gear (52), and the rotating shaft (24) on the second control assembly (4) is connected between the second transmission shaft (51) through two meshing bevel gears.

5. The automated screening device for wheat breeding of claim 4, wherein, The outer wall of the screening box (1) is fixedly provided with a driving motor (54) near the first transmission shaft (5), and the output end of the driving motor (54) is coaxially fixed on the first transmission shaft (5).

6. The automated screening device for wheat breeding of claim 5, wherein, One end of the screening box (1) opposite to the fan assembly (14) is fixedly provided with a collecting frame (15), and the inner wall of the screening box (1) is provided with a ventilation opening above the collecting frame (15).

7. The automated screening device for wheat breeding of claim 6, wherein, The two ends of the first screening plate (3) and the second screening plate (31) are fixedly provided with connecting blocks (33) in inverted U-shaped arrangement, and the end, away from the screening plate, of the connecting block (33) is movably inserted into one end of the connecting plate (32) in the screening box (1).

8. The automated screening device for wheat breeding of claim 7, wherein, One side of the screening box (1) is provided with a door plate (6).

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