Screening device for seed grading
By designing screening cylinders and adjustment handles with multiple coaxial structures, the problem of low grading efficiency for seeds with large size gaps in the prior art is solved, and efficient grading and processing of seeds from different crops is achieved.
Patent Information
- Application Number
- CN202420839080.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing seed grading screening device is difficult to efficiently process seeds with large size gaps, resulting in low grading efficiency and requires multiple equipment to process.
A screening device consisting of a screening cylinder with a plurality of coaxial structures is designed. The screening cylinder is divided into four equal parts and gradually reduced screening holes, and screening is carried out through the adjustment ring plate and the central adjustment plate. The rotation adjustment of the cylinder is combined with the vibration motor drive for screening.
It realizes efficient grading and processing of seeds from different crops, increases the size type of screening holes, is convenient to operate, and improves grading efficiency.
Smart Images
Figure CN222152776U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of seed grading, in particular to a screening device for seed grading. Background Art
[0002] Seed grading refers to the quality assessment of seeds according to certain standards and the classification of seeds into different grades to reflect the genetic quality, physiological condition and use value of seeds. Screening devices used for seed grading usually use mechanical vibration, airflow, drum rotation, swinging and other methods to separate and grade seeds according to the characteristics of seed particle size, shape, density, etc., aiming to improve seed processing efficiency, ensure grading accuracy, and meet the needs of seed quality control in agricultural production, scientific research, trade and other fields.
[0003] There are many types of crops and seed sizes, which leads to different screening structures for grading and screening devices according to the types of crops. However, one screening device is usually unable to efficiently grade seeds with large size differences, so seed grading needs to be done through different equipment, resulting in low screening efficiency. Utility Model Content
[0004] The utility model aims to provide a screening device for seed grading, so as to solve the problem raised in the above background technology that the screening devices currently on the market are usually unable to efficiently grade seeds with large size differences, so that seed grading needs to be carried out through different equipment, resulting in low screening efficiency.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for seed grading, comprising a seed screening device main body, a positioning inner plate and a positioning outer cylinder of a coaxial structure are provided on the seed screening device main body, and a first screening cylinder, a second screening cylinder, a third screening cylinder and a fourth screening cylinder of a coaxial structure are sequentially provided between the positioning inner plate and the positioning outer cylinder from the inside to the outside, a fixed end plate is provided at one end of the positioning outer cylinder, and a center adjustment plate, a third adjustment ring plate, a second adjustment ring plate and a first adjustment ring plate that are movably connected to each other are sequentially provided at the other end of the positioning outer cylinder from the inside to the outside, and screening holes of gradually decreasing sizes are respectively arranged in four equal parts on the first screening cylinder, the second screening cylinder, the third screening cylinder and the fourth screening cylinder.
[0006] Preferably, a stabilizing frame formed by welding and fixing a steel pipe is provided at the lower end of the main body of the seed screening device, support frames are welded and fixed on both sides of the lower end of the positioning outer cylinder, and shock-absorbing connecting seats are installed between the support frames and the stabilizing frame. A hopper is provided on one side of the main body of the seed screening device, and a feed pipe that penetrates the gap in the middle of the central adjustment plate is connected to the side of the hopper.
[0007] Preferably, the fixed end plate is provided with a first discharge channel, a second discharge channel, a third discharge channel and a fourth discharge channel corresponding to the positions below the ends of the first screening cylinder, the second screening cylinder, the third screening cylinder and the fourth screening cylinder, the positioning outer cylinder is inclined at the bottom, and the fifth discharge channel corresponding to the bottom position of the fourth screening cylinder is opened at the lower end of the positioning outer cylinder.
[0008] Preferably, the positioning inner plate is a C-shaped structure, and is fixed to the fixed end plate by screws, and the positioning inner plate is movably engaged with the center adjustment plate, and the fixed end plate is also movably engaged with the first screening cylinder, the second screening cylinder, the third screening cylinder and the fourth screening cylinder.
[0009] Preferably, the center adjustment plate, the third adjustment ring plate, the second adjustment ring plate and the first adjustment ring plate are respectively fixed with adjustment handles by screws, and the adjustment handles are close to one end of the hopper, the center adjustment plate is fixed to the end of the first screening cylinder by screws, the third adjustment ring plate is fixed to the end of the second screening cylinder by screws, the second adjustment ring plate is fixed to the end of the third screening cylinder by screws, and the first adjustment ring plate is fixed to the end of the fourth screening cylinder by screws.
[0010] Preferably, the first screening cylinder, the second screening cylinder and the third screening cylinder are all welded and fixed with supporting partition plates between the screening holes divided into four equal parts, and the first screening cylinder is gap-fitted with the positioning inner plate, and the fourth screening cylinder is gap-fitted with the positioning outer cylinder.
[0011] Compared with the prior art, the utility model has the following beneficial effects: the screening device for seed grading is composed of a plurality of coaxial screening cylinders to form a screening net structure, and screening holes are evenly divided into four on the screening cylinders, which greatly increases the size types of the screening holes. By combining and adjusting the screening holes, seeds of different crops can be screened and graded. The screening device for seed grading supports and stabilizes the screening cylinders through supporting partition plates, and can adjust the rotation of each layer of screening cylinders through adjusting ring plates and central adjustment plates, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a front view of the interior of a screening device for seed grading according to the utility model;
[0013] Figure 2 This is a right view of a screening device for seed grading according to the utility model;
[0014] Figure 3 This is a top view of a screening device for seed grading according to the utility model;
[0015] Figure 4This is a schematic diagram of the left side external structure of a screening device for seed grading according to the utility model;
[0016] Figure 5 The utility model is a schematic diagram of the internal cross-sectional structure of a screening device for seed grading.
[0017] In the figure: 1. Seed screening device body; 2. Fixed end plate; 3. Positioning inner plate; 4. First discharge channel; 5. Second discharge channel; 6. Third discharge channel; 7. Fifth discharge channel; 8. Support frame; 9. Shock-absorbing connecting seat; 10. Stabilizing frame; 11. Adjusting handle; 12. First adjusting ring plate; 13. Second adjusting ring plate; 14. Third adjusting ring plate; 15. Positioning outer cylinder; 16. Fourth screening cylinder; 17. Third screening cylinder; 18. Second screening cylinder; 19. First screening cylinder; 20. Hopper; 21. Center adjusting plate; 22. Feed pipe; 23. Support partition plate; 24. Fourth discharge channel. DETAILED DESCRIPTION
[0018] 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.
[0019] See also Figure 1-5The utility model provides a technical solution: a screening device for seed grading, including a seed screening device body 1, a positioning inner plate 3 and a positioning outer cylinder 15 of a coaxial structure are arranged on the seed screening device body 1, and a first screening cylinder 19, a second screening cylinder 18, a third screening cylinder 17 and a fourth screening cylinder 16 of a coaxial structure are arranged in sequence from the inside to the outside between the positioning inner plate 3 and the positioning outer cylinder 15, one end of the positioning outer cylinder 15 is provided with a fixed end plate 2, and the other end of the positioning outer cylinder 15 is provided with a central adjustment plate 21, a third adjustment ring plate 14, a second adjustment ring plate 13 and a first adjustment ring plate 12 that are movably connected to each other in sequence from the inside to the outside, and the lower end of the seed screening device body 1 is provided with a steel pipe welded fixed The stabilizing frame 10 is constituted, and the supporting frames 8 are respectively welded and fixed on both sides of the lower end of the positioning outer cylinder 15, and the shock-absorbing connecting seat 9 is installed between the supporting frame 8 and the stabilizing frame 10. A hopper 20 is provided on one side of the main body 1 of the seed screening device, and a feeding pipe 22 that penetrates the gap in the middle of the central adjustment plate 21 is connected to the side of the hopper 20. This structure allows seeds to be fed into the main body 1 of the seed screening device through the hopper 20. The seeds pass through the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the screening holes on the fourth screening cylinder 16 from the middle to the outside. The main body 1 of the seed screening device can be driven by a vibration motor to vibrate the positioning outer cylinder 15, so that the screening cylinders installed in the positioning outer cylinder 15 can be vibrated and screened respectively. The fixed end plate 2 is provided with a first discharge channel 4, a second discharge channel 5, a third discharge channel 6 and a fourth discharge channel 24 corresponding to the lower positions of the ends of the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16. The positioning outer cylinder 15 is tilted at the bottom, and the fifth discharge channel 7 corresponding to the bottom position of the fourth screening cylinder 16 is opened at the lower end of the positioning outer cylinder 15. This structure can collect the seeds screened and graded by the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16 through the first discharge channel 4, the second discharge channel 5, the third discharge channel 6 and the fifth discharge channel 7. The positioning inner plate 3 is C-shaped structure, and the positioning inner plate 3 is fixed to the fixed end plate 2 by screws, and the positioning inner plate 3 is movably engaged with the center adjustment plate 21, and the fixed end plate 2 is also movably engaged with the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16. The positioning inner plate 3 of this structure can play a role in center positioning, and the adjustment and positioning structure of the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16 is formed by the positioning inner plate 3, the fixed end plate 2 and the positioning outer cylinder 15, so that the required screening holes can be adjusted to the bottom of the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16 as needed.The first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16 are respectively provided with screening holes of gradually decreasing sizes in four equal parts, and the center adjustment plate 21, the third adjustment ring plate 14, the second adjustment ring plate 13 and the first adjustment ring plate 12 are respectively fixed with adjustment handles 11 by screws, and the adjustment handle 11 is close to one end of the hopper 20, the center adjustment plate 21 is fixed with screws to the end of the first screening cylinder 19, the third adjustment ring plate 14 is fixed with screws to the end of the second screening cylinder 18, the second adjustment ring plate 13 is fixed with screws to the end of the first screening cylinder 19, and the third adjustment ring plate 14 is fixed with screws to the end of the second screening cylinder 18. The ends of the three screening cylinders 17 are fixed with screws, and the ends of the first adjustment ring plate 12 and the fourth screening cylinder 16 are fixed with screws. This structure enables the center adjustment plate 21, the third adjustment ring plate 14, the second adjustment ring plate 13 and the first adjustment ring plate 12 to respectively rotate and adjust the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16. After the adjustment is completed, the card plate structure can be clamped to the outside of the center adjustment plate 21, the third adjustment ring plate 14, the second adjustment ring plate 13 and the first adjustment ring plate 12, so that the center The adjusting plate 21, the third adjusting ring plate 14, the second adjusting ring plate 13 and the first adjusting ring plate 12 are relatively stable. The first screening cylinder 19, the second screening cylinder 18 and the third screening cylinder 17 are all welded and fixed with a supporting partition plate 23 between the screening holes opened in four equal parts, and the first screening cylinder 19 is gap-fitted with the positioning inner plate 3, and the fourth screening cylinder 16 is gap-fitted with the positioning outer cylinder 15. This structure makes the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16 relatively stable. The stable support ensures the stability of the overall structure. The minimum screening hole on the first screening cylinder 19 is larger than the maximum screening hole on the second screening cylinder 18, the minimum screening hole on the second screening cylinder 18 is larger than the maximum screening hole on the third screening cylinder 17, and the minimum screening hole on the third screening cylinder 17 is larger than the maximum screening hole on the fourth screening cylinder 16. By rotating and adjusting the screening cylinders, there are at least sixteen combinations, which greatly increases the scope of use and can be used for graded screening of seeds of different crops.
[0020] Working principle: When using the screening device for seed grading, first adjust the screening holes of the seed screening device body 1 according to the type of seeds, and rotate the center adjustment plate 21, the third adjustment ring plate 14, the second adjustment ring plate 13 and the first adjustment ring plate 12 through the adjustment handle 11 respectively, and support the partition plate 23 to separate the screening holes of each area. The positioning inner plate 3 and the positioning outer cylinder 15 stabilize the first screening cylinder 19 and the fourth screening cylinder 16 respectively. The fixed end plate 2 and the positioning inner plate 3 and the positioning outer cylinder 15 are relatively stable, forming a supporting and positioning structure to make the overall structure stable. The screening holes of the required size are rotated to the bottom of the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16, and then the center adjustment plate 21 is adjusted. , the third adjusting ring plate 14, the second adjusting ring plate 13 and the first adjusting ring plate 12 are stabilized. When the seeds are graded and screened, the vibration motor is started to make the positioning outer cylinder 15 vibrate under the support of the stabilizing frame 10, and the supporting frame 8 performs shock-absorbing protection treatment on the stabilizing frame 10 through the shock-absorbing connecting seat 9. The seeds are poured into the hopper 20, and the seeds enter the first screening cylinder 19 through the central adjusting plate 21 through the feeding pipe 22. The seeds are screened by the first screening cylinder 19, the second screening cylinder 18, the third screening cylinder 17 and the fourth screening cylinder 16 in turn, and the discharged seeds are collected by the first discharging channel 4, the second discharging channel 5, the third discharging channel 6, the fourth discharging channel 24 and the fifth discharging channel 7 respectively, so as to realize efficient grading of the seeds and complete a series of tasks.
[0021] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A seed grading device, comprising a seed grading device body (1), characterized in that: The seed screening device body (1) is provided with a coaxial positioning inner plate (3) and a positioning outer cylinder (15), and a first screening cylinder (19), a second screening cylinder (18), a third screening cylinder (17) and a fourth screening cylinder (16) are sequentially provided between the positioning inner plate (3) and the positioning outer cylinder (15) from the inside to the outside. A fixed end plate (2) is provided at one end of the positioning outer cylinder (15), and a central adjustment plate (21), a third adjustment ring plate (14), a second adjustment ring plate (13) and a first adjustment ring plate (12) are sequentially provided at the other end of the positioning outer cylinder (15) from the inside to the outside. Screening holes of gradually decreasing sizes are respectively provided in four equal parts on the first screening cylinder (19), the second screening cylinder (18), the third screening cylinder (17) and the fourth screening cylinder (16).
2. A screening device for seed grading according to claim 1, characterized in that: The lower end of the main body (1) of the seed screening device is provided with a stabilizing frame (10) formed by welding a steel pipe, and support frames (8) are respectively welded and fixed on both sides of the lower end of the positioning outer cylinder (15), and a shock-absorbing connecting seat (9) is installed between the support frame (8) and the stabilizing frame (10). A hopper (20) is provided on one side of the main body (1) of the seed screening device, and a feed pipe (22) that penetrates the middle gap of the central adjustment plate (21) is connected to the side of the hopper (20).
3. A screening device for seed grading according to claim 1, characterized in that: The fixed end plate (2) is provided with a first discharge channel (4), a second discharge channel (5), a third discharge channel (6) and a fourth discharge channel (24) corresponding to positions below the ends of the first screening cylinder (19), the second screening cylinder (18), the third screening cylinder (17) and the fourth screening cylinder (16); the positioning outer cylinder (15) is arranged at an angle at the bottom, and a fifth discharge channel (7) corresponding to the bottom position of the fourth screening cylinder (16) is opened at the bottom of the positioning outer cylinder (15).
4. A screening device for seed grading according to claim 1, characterized in that: The positioning inner plate (3) is a C-shaped structure, and the positioning inner plate (3) is fixed to the fixed end plate (2) by screws, and the positioning inner plate (3) is movably engaged with the center adjustment plate (21), and the fixed end plate (2) is also movably engaged with the first screening cylinder (19), the second screening cylinder (18), the third screening cylinder (17) and the fourth screening cylinder (16).
5. A screening device for seed grading according to claim 1, characterized in that: The center adjustment plate (21), the third adjustment ring plate (14), the second adjustment ring plate (13) and the first adjustment ring plate (12) are respectively fixed with an adjustment handle (11) by screws, and the adjustment handle (11) is close to one end of the hopper (20), the center adjustment plate (21) is fixed to the end of the first screening cylinder (19) by screws, the third adjustment ring plate (14) is fixed to the end of the second screening cylinder (18) by screws, the second adjustment ring plate (13) is fixed to the end of the third screening cylinder (17) by screws, and the first adjustment ring plate (12) is fixed to the end of the fourth screening cylinder (16) by screws.
6. A screening device for seed grading according to claim 1, characterized in that: The first screening cylinder (19), the second screening cylinder (18) and the third screening cylinder (17) are all welded and fixed with supporting partition plates (23) between the screening holes divided into four equal parts, and the first screening cylinder (19) is gap-fitted with the positioning inner plate (3), and the fourth screening cylinder (16) is gap-fitted with the positioning outer cylinder (15).