Wheat seed screening device for agricultural planting

By designing a combination of screening boxes, filter components, and conveying mechanisms, the problems of clogging and dust in wheat seed screening devices were solved, achieving efficient screening and dust removal, protecting worker health, and ensuring uniform seed drying.

CN224195282UActive Publication Date: 2026-05-05ANHUI GRAIN ENG VOCATIONAL COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI GRAIN ENG VOCATIONAL COLLEGE
Filing Date
2025-03-27
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing wheat seed screening devices are prone to clogging during long-term use, have low screening efficiency, produce dust that is harmful to workers' health, and result in uneven seed drying.

Method used

A wheat seed screening device for agricultural planting was designed, comprising a screening box, a filter assembly, a screening promotion mechanism, and a conveying mechanism. The device uses a spring seat to mount the first screen, a horizontal gear rod, and a push rod for screening. Combined with a dust exhaust hood and dust removal equipment, it achieves rapid screening and dust removal.

Benefits of technology

It effectively prevents screen clogging, improves screening efficiency, reduces dust emissions, protects worker health, and achieves uniform drying.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a wheat seed screening device for agricultural planting, and relates to the technical field of wheat seed screening, the wheat seed screening device comprises a screening box, a filtering assembly is arranged in the screening box, a screening promoting mechanism is arranged on the surface of the screening box, and a conveying mechanism is arranged on the left side of the screening box; the conveying mechanism comprises a conveying track frame, a third motor and a material placing box; the screening box comprises a box body unit and a material guiding unit. According to the cleaning device, a transverse gear rod and a pushing rod are installed, the meshing effect can be achieved when a second motor drives cleaning, the pushing rod is driven to rotate, and therefore the first screen can be contacted and pushed to shake, and the screening and discharging speed is increased; and a third motor can be started to drive the conveying crawler belt to drive the material containing box to move in a surrounding mode, so that wheat seeds needing to be screened can be placed in the material containing box in batches for feeding, and the speed is higher than that of tubular feeding.
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Description

Technical Field

[0001] This utility model relates to the field of wheat seed screening technology, specifically to a wheat seed screening device for agricultural planting. Background Technology

[0002] Existing wheat seed screening devices lack a cleaning mechanism for the sieves, which may become clogged during long-term use, causing seeds and larger impurities to be discharged from the removal port. Furthermore, the directly discharged dust and particles can harm workers. In addition, the heater is installed directly on the side wall, resulting in uneven seed drying.

[0003] In the prior art, a Chinese patent document with publication number CN211359639U was proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a wheat breeding seed screening device, including a box, with a sieve plate fixed on the lower part of the inner wall of the box; the present invention uses the rotation of the support frame to drive the brush to rotate, thereby cleaning the upper surface of the sieve plate and avoiding sieve plate blockage, which would reduce screening efficiency and screening quality.

[0004] However, the tube feeding system is efficient but prone to clogging, which in turn affects the screening efficiency of large quantities of wheat seeds. Utility Model Content

[0005] The purpose of this invention is to provide a wheat seed screening device for agricultural planting, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A wheat seed screening device for agricultural planting includes a screening box, a filter assembly inside the screening box, a screening promotion mechanism on the surface of the screening box, and a conveying mechanism on the left side of the screening box, the conveying mechanism including a conveyor belt frame, a third motor and a material box.

[0008] The screening box includes a box body unit and a material guiding unit. The material guiding unit is disposed on the surface of the box body unit and includes a first motor, a rotating rod and a material guiding plate.

[0009] A further improvement of the present invention is that the box unit includes a screening box body, a discharge pipe is fixedly installed at the bottom of the screening box body, and a dust exhaust hood is fixedly installed at the top of the screening box body. By setting the dust exhaust hood, a dust removal device can be connected to discharge the dust generated during the feeding and screening process.

[0010] A further improvement of this utility model is that: the first motor is fixedly installed on the front of the screening box body, the rotating rod is inserted into the surface of the screening box body and rotatably connected to the first motor, and the guide plate is fixedly installed on the surface of the rotating rod. By setting the first motor and the rotating rod to install the guide plate, the position of the guide plate can be actively adjusted, so that the material can be tilted during feeding and rotated into the box body for vertical placement after feeding without affecting the movement of the material box.

[0011] A further improvement of this utility model is that the filter assembly includes four sets of spring seats fixedly installed on the inner surface of the screening box body. A first screen is fixedly installed on the spring end of the spring seat. A second screen is fixedly installed in the inner cavity of the screening box body below the first screen. By setting the spring seats to install the first screen, the wheat seeds entering in batches can be pre-screened, and the larger impurities contained therein can be screened out, preventing them from falling onto the second screen and causing clogging of the screen holes and making them difficult to clean.

[0012] A further improvement of this utility model is that the screening mechanism includes a second motor fixedly installed in the middle of the top surface of the screening box body. A cleaning gear rod is fixedly installed at the output end of the second motor. A horizontal gear rod is mounted on the bearing surface of the support block of the left spring seat. A push rod is fixedly installed on the surface of the horizontal gear rod. By installing the horizontal gear rod and the push rod on the cleaning gear rod, the meshing action can be achieved when the second motor drives the cleaning to drive the push rod to rotate, thereby contacting the first screen and pushing it to shake to promote the speed of screening and feeding.

[0013] A further improvement of this utility model is that: the conveyor belt frame is fixedly installed on the left side of the screening box body, the third motor is fixedly installed on the support block surface of the conveyor belt frame, and the material box is fixedly installed on the belt surface of the conveyor belt frame. By setting the conveying mechanism, the third motor can be started to drive the conveyor belt to move the material box in a circular motion, so that the wheat seeds to be screened can be placed in the material box in batches for feeding, which is faster than the tube feeding speed.

[0014] A further improvement of this utility model is that: the cleaning gear rod and the screening box body are inserted together and the bevel gear and the horizontal gear rod are meshed together; the third motor and the drive shaft of the conveyor track frame are rotatably connected.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] This utility model provides a wheat seed screening device for agricultural planting. By setting a spring seat to install the first screen, it can pre-screen wheat seeds entering in batches, screen out the larger impurities they contain, and prevent them from falling onto the second screen and causing screen blockage and making them difficult to clean.

[0017] This utility model provides a wheat seed screening device for agricultural planting. By installing a horizontal gear and a push rod, the device can achieve meshing when the second motor drives the sweeping process, thereby driving the push rod to rotate, which can then contact the first screen and push it to shake, thus promoting the speed of screening and feeding.

[0018] This utility model provides a wheat seed screening device for agricultural planting. By setting up a conveying mechanism, a third motor can be started to drive the conveyor belt to move the material box in a circular motion, so that the wheat seeds to be screened can be placed in the material box in batches for feeding. Compared with the tube feeding, the speed is faster. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This utility model Figure 2 A magnified structural diagram at point A;

[0022] Figure 4 This utility model Figure 2 A magnified structural diagram at point B;

[0023] Figure 5 This is a schematic diagram of the conveying mechanism of this utility model.

[0024] In the diagram: 1. Screening box; 2. Filter assembly; 3. Screening facilitator; 4. Conveying mechanism; 11. Screening box body; 12. Discharge pipe; 13. Dust exhaust hood; 14. First motor; 15. Rotating rod; 16. Guide plate; 21. Spring seat; 22. First screen; 23. Second screen; 31. Second motor; 32. Cleaning gear rod; 33. Horizontal gear rod; 34. Push rod; 41. Conveyor track frame; 42. Third motor; 43. Material box. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments: Example

[0026] like Figure 1-5As shown, this utility model provides a wheat seed screening device for agricultural planting, including a screening box 1. A filter assembly 2 is installed inside the screening box 1. A screening promotion mechanism 3 is installed on the surface of the screening box 1. A conveying mechanism 4 is installed on the left side of the screening box 1, and the conveying mechanism 4 includes a conveyor belt frame 41, a third motor 42, and a material box 43. The screening box 1 includes a box body unit and a guiding unit. The guiding unit is installed on the surface of the box body unit and includes a first motor 14, a rotating rod 15, and a guiding plate 16. The box body unit includes a screening box body 11. A discharge pipe 12 is fixedly installed at the bottom of the screening box body 11, a dust exhaust hood 13 is fixedly installed at the top of the screening box body 11, a first motor 14 is fixedly installed on the front of the screening box body 11, a rotating rod 15 is inserted into the surface of the screening box body 11 and rotatably connected to the first motor 14, and a guide plate 16 is fixedly installed on the surface of the rotating rod 15. By setting the conveying mechanism 4, the third motor 42 can be started to drive the conveyor belt to drive the material box 43 to move in a circular manner, so that the wheat seeds to be screened can be placed in the material box 43 in batches for feeding, which is faster than the tube feeding speed. Example

[0027] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the filter assembly 2 includes four sets of spring seats 21 fixedly installed on the inner surface of the screening box body 11. A first screen 22 is fixedly installed on the spring end of the spring seat 21. A second screen 23 is fixedly installed in the inner cavity of the screening box body 11 below the first screen 22. The screening mechanism 3 includes a second motor 31 fixedly installed in the middle of the top surface of the screening box body 11. A cleaning gear rod 32 is fixedly installed at the output end of the second motor 31. A horizontal gear rod 33 is mounted on the bearing surface of the support block of the left spring seat 21. A push rod 34 is fixedly installed on the surface of the horizontal gear rod 33. By setting the spring seat 21 to install the first screen 22, it is possible to pre-screen the wheat seeds entering in batches, screen out the larger impurities they contain, and prevent them from falling onto the second screen 23 and causing sieve blockage and making them difficult to clean. Example

[0028] like Figure 1-5As shown, based on embodiments 1-2, this utility model provides a technical solution: Preferably, the conveyor belt frame 41 is fixedly installed on the left side of the screening box body 11, the third motor 42 is fixedly installed on the support block surface of the conveyor belt frame 41, the material box 43 is fixedly installed on the belt surface of the conveyor belt frame 41, the cleaning gear rod 32 is inserted into the screening box body 11 and its bevel gear and the bevel gear of the horizontal gear rod 33 are meshed and connected, the third motor 42 is rotatably connected to the drive shaft of the conveyor belt frame 41, by installing the horizontal gear rod 33 and the push rod 34, the meshing action can be achieved when the second motor 31 drives the cleaning to drive the push rod 34 to rotate, thereby contacting the first screen 22 and pushing it to shake to promote the speed of screening and feeding.

[0029] The working principle of the wheat seed screening device for agricultural planting will be explained in detail below.

[0030] like Figure 1-5 As shown, when the screening device is in use, wheat seeds are placed on the feeding box 43 and the third motor 42 is started to drive the conveyor belt to rotate. As the feeding box 43 moves to the top and begins to flip, the wheat seeds fall onto the guide plate 16. After the feeding is completed, the first motor 14 drives the rotating rod 15 to rotate the guide plate 16 into the screening box body 11. Then the feeding box 43 can continue to move.

[0031] After the seeds enter the box, they first pass through the first screen 22 to remove larger impurities. As they fall, they pass through the second screen 23 for fine screening and are then discharged through the discharge pipe 12. After a long period of screening, the second motor 31 can be started to drive the cleaning gear rod 32 to rotate and clean the second screen 23 to prevent blockage. Under the meshing action, the horizontal gear rod 33 can drive the push rod 34 to rotate, thereby pushing the first screen 22 upward. Then, under the action of the spring, it shakes to promote the pre-screening and discharge of the seeds.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A wheat seed screening device for agricultural planting, comprising a screening box (1), characterized in that: The screening box (1) is equipped with a filter assembly (2) inside, and a screening promotion mechanism (3) is provided on the surface of the screening box (1). A conveying mechanism (4) is provided on the left side of the screening box (1), and the conveying mechanism (4) includes a conveyor belt frame (41), a third motor (42) and a material box (43). The screening box (1) includes a box body unit and a material guiding unit. The material guiding unit is disposed on the surface of the box body unit and includes a first motor (14), a rotating rod (15) and a material guiding plate (16).

2. The wheat seed screening device for agricultural planting according to claim 1, characterized in that: The box unit includes a screening box body (11), a discharge pipe (12) is fixedly installed at the bottom of the screening box body (11), and a dust exhaust hood (13) is fixedly installed at the top of the screening box body (11).

3. The wheat seed screening device for agricultural planting according to claim 2, characterized in that: The first motor (14) is fixedly installed on the front of the screening box body (11), the rotating rod (15) is inserted into the surface of the screening box body (11) and rotatably connected to the first motor (14), and the guide plate (16) is fixedly installed on the surface of the rotating rod (15).

4. The wheat seed screening device for agricultural planting according to claim 2, characterized in that: The filter assembly (2) includes four sets of spring seats (21) fixedly installed on the inner surface of the screening box body (11). The spring end of the spring seat (21) is fixedly installed with a first screen (22), and the inner cavity of the screening box body (11) is located below the first screen (22) and a second screen (23) is fixedly installed.

5. The wheat seed screening device for agricultural planting according to claim 4, characterized in that: The screening mechanism (3) includes a second motor (31) fixedly installed in the middle of the top surface of the screening box body (11). A cleaning gear rod (32) is fixedly installed at the output end of the second motor (31). A horizontal gear rod (33) is installed on the bearing surface of the support block of the spring seat (21) on the left side. A push rod (34) is fixedly installed on the surface of the horizontal gear rod (33).

6. The wheat seed screening device for agricultural planting according to claim 5, characterized in that: The conveyor track frame (41) is fixedly installed on the left side of the screening box body (11), the third motor (42) is fixedly installed on the support block surface of the conveyor track frame (41), and the material box (43) is fixedly installed on the track surface of the conveyor track frame (41).

7. The wheat seed screening device for agricultural planting according to claim 6, characterized in that: The cleaning gear rod (32) and the screening box body (11) are inserted together and their bevel gears and transverse gear rod (33) are meshed together. The third motor (42) and the drive shaft of the conveyor track frame (41) are rotatably connected.

Citation Information

Patent Citations

  • Improved variety screening device for wheat breeding

    CN211359639U