A seed selection device for crop seed production

Abstract

The utility model discloses a kind of seed selection devices for crop seed production, belong to agricultural machinery technical field, including device main body, the inside of device main body is provided with screening mechanism, the number of screening mechanism is three, three The screening mechanism is distributed in the inside of device main body from top to bottom, the screening mechanism includes elevating rack located device main body two sides inner surface, the two sides of elevating rack are fixedly connected with guide block, the two sides inner wall of device main body is all set with the guide groove matched with guide block, two The elevating rack between fixedly connected with screening net;Through the screening mechanism set, can make screening structure more reasonable, can be fully screened to crop seed, can realize grading screening, effectively improve the screening effect of device, can prevent device internal residual seed after screening, avoid causing the waste of crop seed.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a seed selection device for crop seed production. Background Technology

[0002] In agricultural production, seed selection is a crucial step in ensuring sowing quality and increasing crop yield. The main purpose of seed selection is to select plump, uniformly sized seeds to provide a high-quality seed source for subsequent sowing. With the development of agricultural mechanization, seed selection equipment has gradually become an important tool in agricultural production, significantly improving selection efficiency and reducing manual labor intensity. However, existing seed selection devices still have many shortcomings in practical applications, limiting their further promotion and use.

[0003] According to publicly available technical solutions, such as patent document with application number CN202421602037.7, a crop seed sorting machine is disclosed. This device achieves seed grading and sorting by setting a fixed frame and a sorting component. Specifically, it uses an impact column to impact a screening mesh to grade the seeds during the sorting process, and the design of the inclined guide plate and screening mesh plate avoids clogging problems during material injection. Although this technology improves the sorting efficiency to some extent, its sorting principle still has obvious defects. Because the impact component is located below the center of the screening mesh, sorted seeds are prone to remain on the impact component, which not only wastes seeds but also increases the workload of operators in cleaning up residual seeds. In addition, the presence of residual seeds may affect the normal operation of the impact component, thereby reducing the sorting effect and the stability of the equipment.

[0004] Therefore, designing a seed selection device that can achieve efficient grading and screening while avoiding seed residue and facilitating the collection of screened seeds has become a pressing technical challenge. This invention addresses this problem by proposing an improved seed selection device for crop seed production. It aims to improve screening efficiency and accuracy by optimizing the design of the screening mechanism, while reducing seed waste and simplifying the operation process, thus providing more reliable technical support for agricultural production. Utility Model Content

[0005] The purpose of this invention is to provide a seed selection device for crop seed production to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a seed selection device for crop seed production, comprising a device body, wherein a screening mechanism is provided inside the device body, and the number of the screening mechanisms is three, which are distributed from top to bottom inside the device body;

[0007] The screening mechanism includes lifting frames located on the inner surfaces of both sides of the main body of the device. Guide blocks are fixedly connected to both sides of the lifting frames. Guide grooves matching the guide blocks are opened on the inner walls of both sides of the main body of the device. A screening screen is fixedly connected between the two lifting frames. A connecting block is fixedly connected to the top of the lifting frames. A dual-axis motor is fixedly installed inside the connecting block. The two output ends of the dual-axis motor are fixedly connected to connecting shafts through couplings. An eccentric wheel is fixedly connected to one end of the connecting shaft. A guide rod is slidably connected inside the lifting frames. The guide rod completely penetrates the lifting frames. A reciprocating spring is installed between the guide rod and the lifting frames. The reciprocating spring is sleeved on the outer wall of the guide rod. A limit plate is fixedly connected to the top of the guide rod. The bottom outer wall of the guide rod is fixedly connected to the bottom inner wall of the main body of the device.

[0008] In a preferred embodiment, a baffle is fixedly connected to the top of the lifting frame, the baffle being located on the side near the connecting block, and the baffle being in an inclined state.

[0009] In a preferred embodiment, the number of screening screens is three, and the mesh diameter of the three screening screens gradually decreases from top to bottom.

[0010] In a preferred embodiment, a receiving frame is fixedly connected to the lower interior of the main body of the device. The overall shape of the receiving frame is U-shaped, and a receiving groove is provided inside the receiving frame.

[0011] In a preferred embodiment, a feeding bin is fixedly connected to the top of the main body of the device, and a feeding hopper is fixedly connected to the top of the feeding bin.

[0012] In a preferred embodiment, fixing plates are fixedly connected to both outer surfaces of the main body of the device, and support rods are welded to the bottom of the fixing plates.

[0013] In a preferred embodiment, a transfer mechanism is provided directly below the receiving frame. The transfer mechanism includes a collection box located directly below the receiving trough. A sorting plate is fixedly connected inside the collection box, and self-locking casters are rotatably connected to the bottom of the collection box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This seed selection device for crop seed production, through its set screening mechanism, allows for a more rational screening structure, enabling thorough screening of crop seeds and achieving graded screening. This effectively improves the screening effect of the device, prevents the residue of screened seeds inside the device, and avoids waste of crop seeds.

[0016] This seed selection device for crop seed production, by setting up a transfer mechanism, makes it easier for operators to classify, collect, grade, and screen crop seeds, and makes it easier for operators to transfer the screened crop seeds. Attached Figure Description

[0017] Figure 1 This is a front view of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main body of the device in this utility model;

[0019] Figure 3 This is a schematic diagram of the screening mechanism in this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle.

[0021] In the diagram: 1. Main body of the device; 2. Screening mechanism; 3. Receiving frame; 4. Receiving trough; 5. Fixing plate; 6. Support rod; 7. Feeding bin; 8. Feeding hopper; 9. Transfer mechanism; 21. Lifting frame; 22. Guide block; 23. Screening mesh; 24. Guide rod; 25. Reciprocating spring; 26. Connecting block; 27. Dual-axis motor; 28. Eccentric wheel; 29. ​​Baffle; 91. Collection box; 92. Sorting plate; 93. Self-locking caster wheel. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figure 1-4 This utility model provides a seed selection device for crop seed production. This device, through its internal multi-stage screening mechanism and vibration screening design, combined with a graded collection function, significantly improves the screening efficiency and accuracy of crop seeds, and effectively avoids the problem of seed residue inside the device. The following will be described in conjunction with the attached... Figure 1 To be continued Figure 4 The accompanying drawings, along with the specific reference numerals for each component, provide a detailed description of the specific embodiments of this utility model.

[0025] After selecting the crop seeds to be screened, the operator first pours the seeds into the feeding bin 7 through the feeding hopper 8. The feeding bin 7 is fixedly connected to the top of the main body 1 of the device. Its structural design ensures that the seeds can smoothly enter the interior of the main body 1 of the device. The main body 1 of the device serves as the core frame of the entire device. Inside it, from top to bottom, there are three screening mechanisms 2. Each screening mechanism 2 includes a lifting frame 21, a guide block 22, a screening screen 23, a dual-shaft motor 27, an eccentric wheel 28, a guide rod 24, and a reciprocating spring 25. These components together constitute a highly efficient vibration screening system for grading and screening seeds.

[0026] When the seeds enter the main body 1 of the device, they first come into contact with the uppermost screening mechanism 2. Guide blocks 22 are fixedly connected to both sides of the lifting frame 21 in the screening mechanism 2. The guide blocks 22 match the guide grooves opened on the inner wall of the main body 1, ensuring that the lifting frame 21 moves stably up and down along the guide grooves. A screening screen 23 is fixedly connected between the two lifting frames 21, and the screening screen 23 is used to complete the initial screening of the seeds. A connecting block 26 is fixedly connected to the top of the lifting frame 21. A dual-axis motor 27 is installed inside the connecting block 26. The two output ends of the dual-axis motor 27 are connected via couplings. The eccentric wheel 28 is connected to the guide rod 24, which passes through the lifting frame 21 and is fixedly connected to the bottom inner wall of the main body 1 of the device. The reciprocating spring 25 is sleeved on the outer wall of the guide rod 24 to provide elastic support for the lifting frame 21. After the dual-shaft motor 27 is started, the eccentric wheel 28 drives the lifting frame 21 to vibrate up and down along the guide rod 24 through its eccentric design and the elastic effect of the reciprocating spring 25, thereby driving the screening screen 23 to achieve vibration screening. Since the vibration part is located on both sides of the screening screen 23, rather than directly contacting the seeds, it can effectively avoid the seeds remaining inside the device and reduce seed waste.

[0027] To further improve the stability of the screening process, a tilted baffle 29 is fixedly connected to the top of the lifting frame 21. The baffle 29 is located near the connecting block 26, and its tilted design prevents seeds from jumping off the outside of the screening mesh 23 due to vibration, ensuring a more efficient and precise screening process. In addition, the mesh diameter of the three screening meshes 23 gradually decreases from top to bottom, sequentially grading and screening seeds of different particle diameters. This design not only achieves fine grading of seeds but also meets the classification needs of seeds of different particle sizes in agricultural production.

[0028] After three-stage screening, the seeds are graded by size and fall into the receiving trough 4 of the receiving frame 3. The receiving frame 3 is fixedly connected to the lower interior of the main body 1 of the device. Its overall shape is U-shaped. The receiving trough 4 inside is used to receive the graded and screened seeds. A transfer mechanism 9 is set directly below the receiving frame 3. The transfer mechanism 9 includes a collection box 91, a sorting plate 92, and self-locking casters 93. The sorting plate 92 is fixedly connected inside the collection box 91, dividing the space of the collection box 91 into three parts, each corresponding to a different grade of seed after screening, thus achieving classified collection. The self-locking casters 93 are rotatably connected to the bottom of the collection box 91, making it easy for operators to move and transfer the screened seeds. Through the above design, the graded and screened seeds can be automatically classified and centrally stored, simplifying the operation process and improving work efficiency.

[0029] Fixing plates 5 are fixedly connected to the outer surfaces of both sides of the main body 1. Support rods 6 are welded to the bottom of the fixing plates 5, providing stability for the main body 1. The design of the fixing plates 5 and support rods 6 ensures that the device remains stable during operation, preventing equipment displacement or damage due to vibration. In addition, a limiting plate is fixedly connected to the top of the guide rod 24. The design of the limiting plate further ensures the stable operation of the lifting frame 21 and prevents the lifting frame 21 from detaching from the guide rod 24 during vibration.

[0030] In actual use, the operator first pours the seeds to be screened into the feed hopper 8. The seeds enter the main body 1 of the device through the feed bin 7, and then come into contact with the uppermost screening mechanism 2. After starting the dual-shaft motor 27, the eccentric wheel 28, through its eccentric design and the elastic effect of the reciprocating spring 25, drives the lifting frame 21 to vibrate up and down along the guide rod 24, causing the screening screen 23 to vibrate and screen. During this process, the baffle 29 prevents the seeds from jumping off the outside of the screening screen 23 due to vibration, ensuring the stability of the screening process. After the first stage of screening, the seeds that meet the mesh diameter of the screening screen 23 fall into the second stage screening mechanism 2 for further screening. This process continues until, after three stages of screening, the seeds are graded by size and fall into the receiving trough 4 of the receiving frame 3. The seeds in the receiving trough 4 then enter the collection box 91. The sorting plate 92 divides the collection box 91 into three areas, each corresponding to a different grade of seed, achieving classified collection. Finally, the operator moves the collection box 91 to the designated position using the self-locking casters 93, completing the transfer of the seeds.

[0031] This invention achieves efficient grading and screening of crop seeds through a multi-stage screening mesh and vibration screening design, significantly improving screening accuracy and efficiency. Specifically, the mesh diameter of the screening mesh 23 gradually decreases from top to bottom, ensuring finer screening results and meeting the grading requirements of seeds with different particle sizes. The vibration screening parts are located on both sides of the screening mesh 23, avoiding direct contact with the seeds and effectively preventing seed residue inside the device, reducing seed waste. Furthermore, the design of the baffle 29 further improves the stability of the screening process, preventing seeds from jumping off the outside of the screening mesh 23. The design of the receiving frame 3 and the collection box 91 enables automatic classification and collection of graded and screened seeds, simplifying the operation process and improving work efficiency. The fixing plate 5 and support rod 6 provide stability for the main body 1 of the device, while the guide rod 24 and the limiting plate ensure the stable operation of the lifting frame 21. The self-locking casters 93 increase the mobility of the equipment, facilitating the transfer of screened seeds by operators.

[0032] In summary, this utility model solves the problems of low screening efficiency, serious seed residue, and inconvenient operation in the prior art by optimizing the design of the screening mechanism and the overall structural layout, thus providing more reliable technical support for agricultural production.

[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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seed selection device for crop seed production, comprising a main body (1), characterized in that: Inside the device main body (1), a screening mechanism (2) is provided. The number of the screening mechanisms (2) is three, and the three screening mechanisms (2) are distributed inside the device main body (1) from top to bottom; The screening mechanism (2) includes lifting frames (21) located on the inner surfaces of both sides of the device main body (1). Guide blocks (22) are fixedly connected to both sides of the lifting frames (21). Guide grooves matching the guide blocks (22) are formed on the inner walls of both sides of the device main body (1). A screening net (23) is fixedly connected between the two lifting frames (21). A connecting block (26) is fixedly connected to the top of the lifting frame (21). A double-shaft motor (27) is fixedly installed inside the connecting block (26). Connecting shafts are fixedly connected to both output ends of the double-shaft motor (27) through couplings. An eccentric wheel (28) is fixedly connected to one end of the connecting shaft. A guide rod (24) is slidably connected inside the lifting frame (21). The guide rod (24) completely penetrates the lifting frame (21). A reciprocating spring (25) is installed between the guide rod (24) and the lifting frame (21). The reciprocating spring (25) is sleeved on the outer wall of the guide rod (24). A limiting disc is fixedly connected to the top of the guide rod (24). The bottom outer wall of the guide rod (24) is fixedly connected to the bottom inner wall of the device main body (1).

2. The seed selection device for crop seed production according to claim 1, characterized in that: A baffle (29) is fixedly connected to the top of the lifting frame (21). On the side of the baffle (29) close to the connecting block (26), the baffle (29) is in an inclined state.

3. The seed selection device for crop seed production according to claim 1, characterized in that: The number of the screening nets (23) is three, and the mesh diameters of the three screening nets (23) gradually decrease from top to bottom.

4. The seed selection device for crop seed production according to claim 1, characterized in that: A receiving frame (3) is fixedly connected to the lower interior of the device main body (1). The overall shape of the receiving frame (3) is in a shape of a Chinese character 'hui'. A receiving groove (4) is formed inside the receiving frame (3).

5. The seed selection device for crop seed production according to claim 1, characterized in that: A feeding bin (7) is fixedly connected to the top of the device main body (1). A feeding hopper (8) is fixedly connected to the top of the feeding bin (7).

6. The seed selection device for crop seed production according to claim 1, characterized in that: Fixed plates (5) are fixedly connected to the outer surfaces of both sides of the device main body (1). Support rods (6) are welded to the bottoms of the fixed plates (5).

7. The seed selection device for crop seed production according to claim 4, characterized in that: A transfer mechanism (9) is arranged directly below the receiving frame (3). The transfer mechanism (9) includes a collection box (91) located directly below the receiving groove (4). A classification plate (92) is fixedly connected inside the collection box (91). A self-locking universal wheel (93) is rotatably connected to the bottom of the collection box (91).

Images