Multi-stage screening device for soybean seed breeding

Abstract

The utility model discloses a multistage screening device for soybean seed breeding, which comprises a shell and a screening mechanism, and a feeding pipe is arranged at a feeding hole formed in the upper side wall of the shell; the screening mechanism comprises U-shaped seats, screening bins, screening grids and an adjusting screening net plate, the U-shaped seats which are evenly distributed are arranged in the shell, the screening bins are rotationally connected to the interiors of the U-shaped seats, the screening grids are arranged at the ends, close to the center of the shell, of the screening bins, the adjusting screening net plate is slidably connected to the interiors of the screening bins, and the screening grids are arranged in the adjusting screening net plate. The multistage screening device for soybean seed breeding comprises a shell and a screening mechanism, the screening mechanism comprises a plurality of screening grids, adjusting screening net plates are arranged on the screening grids, the adjusting screening net plates and the vertically adjacent screening grids are installed in a matched mode, a control switch is arranged on the front side face of the shell, the input end of the control switch is electrically connected with an external power source, and the screening mechanism further comprises a guiding sliding groove and an adjusting frame. The screening aperture can be quickly changed according to actual screening requirements, and universality and adaptability are high.

Description

Technical Field

[0001] This utility model relates to the field of soybean seed screening technology, specifically a multi-stage screening device for soybean seed breeding. Background Technology

[0002] Soybeans, as an important global crop, are widely used in food, feed, and industry. With the advancement of agricultural modernization and the increasing demands for soybean yield and quality, the breeding of high-quality soybean seeds has become increasingly crucial. Seed quality directly affects the growth, development, yield, and resistance to pests and diseases of soybeans. In the process of soybean seed breeding, precise particle size screening of seeds is an important step in ensuring seed quality. It can effectively remove seeds that do not meet the standards, improve seed uniformity and purity, and lay a good foundation for subsequent planting.

[0003] Currently, in the field of soybean seed screening, the most common screening devices are traditional vibrating screens or fixed-aperture screens. Vibrating screens mainly use the vibration generated by a vibrating motor to make the seeds move on the screen, and the screening is achieved by the size of the screen aperture. Fixed-aperture screens combine screens of different apertures to allow the seeds to pass through in sequence to achieve the purpose of grading.

[0004] During the screening process, vibrating screens can only change the screening specifications by changing screens with different aperture sizes, which is cumbersome and time-consuming. Although fixed aperture screen equipment has a simple structure, the screening aperture is fixed and cannot be flexibly adjusted according to the specific screening requirements of different varieties and batches of soybean seeds, resulting in poor adaptability. Therefore, we propose a multi-stage screening device for soybean seed breeding. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a multi-stage screening device for soybean seed breeding. It allows for flexible adjustment of the position of the screening screen plate, rapid change of screening aperture according to actual screening needs, strong versatility and adaptability, and can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage screening device for soybean seed breeding, including a shell, a feeding pipe provided at the feed inlet on the upper side wall of the shell, and a screening mechanism;

[0007] Screening mechanism: It includes a U-shaped seat, screening chamber, screening grid and adjustable screening screen plate. The shell has U-shaped seats evenly distributed inside, and screening chambers are rotatably connected inside each U-shaped seat. Screening grids are provided at one end of each screening chamber near the center of the shell. Adjustable screening screen plates are slidably connected inside each screening chamber. The adjustable screening screen plates are installed in cooperation with the adjacent screening grids above and below. The position of the adjustable screening screen plates can be flexibly adjusted, and the screening aperture can be quickly changed according to the actual screening needs. It has strong versatility and adaptability.

[0008] Furthermore, a control switch is provided on the front side of the housing, and the input terminal of the control switch is electrically connected to an external power source for stable control.

[0009] Furthermore, the screening mechanism also includes guide chutes and adjusting frames. Guide chutes are provided on the front side of the screening chamber, and adjusting frames are provided on the front side of the adjusting screening screen. The middle part of the adjusting frame is slidably connected to the guide chutes adjacent to the front side, which facilitates the adjustment of the position of the adjusting screening screen.

[0010] Furthermore, the screening mechanism also includes mounting plates and lead screws. The front side of the screening chamber is provided with symmetrically distributed mounting plates. A lead screw is rotatably connected between two horizontally adjacent mounting plates. The middle part of the lead screw is threadedly connected to the front end of the adjacent rear adjustment frame for adjusting the position of the adjustment frame.

[0011] Furthermore, it also includes motors. Motors are installed on the inner side of the mounting plate near the center of the housing. The output shafts of the motors are fixedly connected to the center of the end face of the adjacent lead screw near the center of the housing. The input ends of the motors are electrically connected to the output ends of the control switch for stable driving.

[0012] Furthermore, the screening mechanism also includes an adjusting shaft. The rear side of each screening chamber is provided with an adjusting shaft. An electric cylinder is installed on the upper side of the outer shell. The telescopic end of the electric cylinder passes through the upper side wall of the outer shell. An adjusting rod is provided at the telescopic end of the electric cylinder. The front side of the adjusting rod has evenly distributed strip-shaped openings. The rear ends of the adjusting shafts are all located inside the adjacent strip-shaped openings on the rear side. The input end of the electric cylinder is electrically connected to the output end of a control switch for adjusting the angle of the screening chamber.

[0013] Furthermore, the interior of the outer shell is provided with evenly distributed slide rails, and each slide rail is slidably connected to a collection chamber. The left and right side walls of the outer shell are provided with pull-out holes corresponding to the collection chambers for collecting the sieved soybean seeds.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This multi-stage screening device for soybean seed breeding has the following advantages:

[0015] In soybean seed breeding, different varieties or batches of soybean seeds have different screening requirements. This device uses a motor-driven lead screw to flexibly adjust the position of the screening screen plate. It can quickly change the screening aperture according to the actual screening needs. Whether it is necessary to screen seeds with larger particle sizes or to finely screen seeds with smaller particle sizes, this device can easily handle the task and has strong versatility and adaptability. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the front side cross-section of the present invention;

[0018] Figure 3 This is a partial structural schematic diagram of the screening mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention, viewed from the rear side.

[0020] In the diagram: 1. Outer shell; 2. Screening mechanism; 21. U-shaped seat; 22. Screening bin; 23. Screening mesh; 24. Adjustable screening mesh plate; 25. Guide chute; 26. Adjusting frame; 27. Mounting plate; 28. Lead screw; 29. ​​Adjusting shaft; 3. Pull-out hole; 4. Slide rail; 5. Collection bin; 6. Feeding pipe; 7. Electric cylinder; 8. Adjusting rod; 9. Strip opening; 10. Control switch; 11. Motor. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 This embodiment provides a technical solution: a multi-stage screening device for soybean seed selection, including a shell 1. A control switch 10 is provided on the front side of the shell 1. The input end of the control switch 10 is electrically connected to an external power source. A feeding pipe 6 is provided at the feed inlet on the upper side wall of the shell 1. The shell 1 is provided with uniformly distributed slide rails 4. A collection chamber 5 is slidably connected inside each slide rail 4. Pull-out holes 3 corresponding to the collection chambers 5 are provided on the left and right side walls of the shell 1. The soybean seeds to be screened are poured into the shell 1 through the feeding pipe 6. The seeds will first enter the screening chamber 22 located at the top layer. After screening, the collection chamber 5 is pulled out from the shell 1 through the pull-out holes 3. The collection chamber 5 contains soybean seeds of different particle sizes that have been screened. The device also includes a screening mechanism 2 to facilitate the screening and collection of soybean seeds.

[0023] Screening mechanism 2: It includes a U-shaped seat 21, a screening chamber 22, a screening grid 23, and an adjustable screening grid plate 24. The interior of the outer shell 1 has evenly distributed U-shaped seats 21, each with a rotatably connected screening chamber 22. Each screening chamber 22 has a collection chamber 5 on its lower side. The screening mechanism 2 also includes an adjusting shaft 29, with adjusting shafts 29 located on the rear side of each screening chamber 22. An electric cylinder 7 is mounted on the upper side of the outer shell 1. The telescopic end of the electric cylinder 7 penetrates the upper side wall of the outer shell 1. An adjusting rod 8 is located at the telescopic end of the electric cylinder 7. The front side of the adjusting rod 8 has evenly distributed strip-shaped openings 9. The rear ends of the adjusting shafts 29 are located inside adjacent rear strip-shaped openings 9. The input end of the electric cylinder 7 is electrically connected to the output end of the control switch 10. The screening chamber 22 is located near the outer shell 1. Each of the shell 1 has a screening grid 23 at one end of its center. The screening chamber 22 has an adjustable screening plate 24 slidably connected inside. The adjustable screening plate 24 is installed in conjunction with the adjacent screening grids 23 above and below. (The screening holes of the adjustable screening plate 24 and the screening grids 23 are the same. When the position of the adjustable screening plate 24 changes, the screening holes of the adjustable screening plate 24 partially overlap with the screening holes of the adjacent screening grids 23, while the non-overlapping parts still have gaps, allowing soybean seeds to pass through.) The screening mechanism 2 also includes a guide groove 25 and an adjusting frame 26. The front side of the screening chamber 22 has a guide groove 25, and the front side of the adjustable screening plate 24 has an adjusting frame 26. The middle part of the adjusting frame 26 is slidably connected to the adjacent guide groove 25 on the front side. The screening mechanism 2 also... The system includes mounting plates 27 and lead screws 28. The front side of the screening chamber 22 has symmetrically distributed mounting plates 27, with lead screws 28 rotatably connected between each two laterally adjacent mounting plates 27. The middle of each lead screw 28 is threadedly connected to the front end of an adjacent rear adjusting frame 26. The system also includes a motor 11, with motors 11 mounted on the inner side of each mounting plate 27 near the center of the outer casing 1. The output shafts of the motors 11 are fixedly connected to the center of the end face of each adjacent lead screw 28 near the center of the outer casing 1. The input ends of the motors 11 are electrically connected to the output end of a control switch 10. Based on the actual screening requirements of the soybean seeds, the motors 11 are started, and their output shafts drive the lead screws 28 to rotate. Since the lead screws 28 are threadedly connected to the front end of the adjusting frame 26, and the adjusting frame 26 is located in the guide groove... The sliding mechanism 25, with the rotation of the lead screw 28, causes the adjusting frame 26 to move back and forth along the guide groove 25, thereby driving the adjusting screen plate 24 to slide within the screening chamber 22. This adjusts the relative position between the adjusting screen plate 24 and the screening mesh 23, changing the actual screening aperture size of the screening station. If the tilt angle of the screening chamber 22 needs adjustment, the electric cylinder 7 is activated. The telescopic end of the electric cylinder 7 drives the adjusting rod 8 to move up and down. The strip-shaped opening 9 on the adjusting rod 8 interacts with the adjusting shaft 29 on the rear side of the screening chamber 22, causing the screening chamber 22 to rotate around the rotation connection point of the U-shaped seat 21, thus changing the tilt angle of the screening chamber 22. A suitable tilt angle helps the seeds move more smoothly during the screening process, improving screening efficiency. Soybean seeds are within the screening chamber 22.Due to their own gravity and the tilt angle of the screening chamber 22, seeds roll and slide on the screening grid 23 and the adjusting screening plate 24. Seeds smaller than the current screening aperture (determined by the gap between the screening grid 23 and the screen aperture of the adjusting screening plate 24) will fall through the screening grid 23 into the corresponding collection chamber 5 below, while seeds larger than the screening aperture will remain in the current screening chamber 22. As the seeds are continuously screened, seeds of different sizes remaining in each screening chamber 22 are gradually separated. The soybean seed screening size can be adjusted according to specific circumstances.

[0024] The working principle of the multi-stage screening device for soybean seed breeding provided by this utility model is as follows: Soybean seeds to be screened are poured into the outer casing 1 through the feeding pipe 6. The seeds first enter the screening chamber 22 located at the top. Based on the actual screening requirements of the soybean seeds, the motor 11 is started. The output shaft of the motor 11 drives the lead screw 28 to rotate. Since the lead screw 28 is threadedly connected to the front end of the adjusting frame 26, and the adjusting frame 26 slides within the guide groove 25, the rotation of the lead screw 28 causes the adjusting frame 26 to move back and forth along the guide groove 25, thereby driving the adjusting screening screen plate 24 to slide within the screening chamber 22. Adjusting the relative position between the adjusting screening screen plate 24 and the screening mesh 23 changes the actual screening aperture size of the screening station. If it is necessary to adjust the tilt angle of the screening chamber 22, the electric cylinder 7 is started. The telescopic end of the electric cylinder 7 drives the adjusting rod 8 to move up and down. The strip-shaped opening 9 on the adjusting rod 8 will engage with the adjusting shaft 29 on the rear side of the screening chamber 22. The interaction causes the screening chamber 22 to rotate around the rotation connection point of the U-shaped seat 21, thereby changing the tilt angle of the screening chamber 22. A suitable tilt angle helps the seeds move more smoothly during the screening process and improves the screening efficiency. In the screening chamber 22, soybean seeds are affected by their own gravity and the tilt angle of the screening chamber 22, and roll and slide on the screening grid 23 and the adjusting screening screen plate 24. Seeds smaller than the current screening aperture (determined by the gap between the screening grid 23 and the screen holes of the adjusting screening screen plate 24) will fall into the corresponding collection chamber 5 below through the screening grid 23; while seeds larger than the screening aperture will remain in the current screening chamber 22. As the seeds are continuously screened, seeds of different sizes remaining in each screening chamber 22 are gradually separated. After screening, the collection chamber 5 is pulled out from the outer shell 1 through the pull hole 3. The collection chamber 5 contains soybean seeds of different sizes that have been screened.

[0025] It is worth noting that the electric cylinder 7 disclosed in the above embodiments can be a TGA series electric cylinder, the motor 11 can be a 2IK6GN-C series, and the control switch 10 is provided with control buttons that correspond one-to-one with the electric cylinder 7 and the motor 11 and are used to control their switching.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-stage screening device for soybean seed breeding, comprising a shell (1), wherein a feeding pipe (6) is provided at the feed inlet on the upper side wall of the shell (1), characterized in that: It also includes a screening mechanism (2); Screening mechanism (2): It includes a U-shaped seat (21), a screening chamber (22), a screening grid (23) and an adjustable screening screen plate (24). The interior of the outer shell (1) is provided with uniformly distributed U-shaped seats (21). The screening chambers (22) are rotatably connected inside the U-shaped seats (21). The screening grids (23) are provided at one end of the screening chambers (22) near the center of the outer shell (1). The adjustable screening screen plates (24) are slidably connected inside the screening chambers (22). The adjustable screening screen plates (24) are all installed in cooperation with the adjacent screening grids (23) above and below.

2. The multi-stage screening device for soybean seed breeding according to claim 1, characterized in that: The front side of the housing (1) is provided with a control switch (10), and the input end of the control switch (10) is electrically connected to an external power source.

3. The multi-stage screening device for soybean seed breeding according to claim 2, characterized in that: The screening mechanism (2) also includes a guide chute (25) and an adjusting frame (26). The front side of the screening chamber (22) is provided with a guide chute (25), and the front side of the adjusting screening screen plate (24) is provided with an adjusting frame (26). The middle part of the adjusting frame (26) is slidably connected to the guide chute (25) adjacent to the front side.

4. The multi-stage screening device for soybean seed breeding according to claim 3, characterized in that: The screening mechanism (2) also includes a mounting plate (27) and a lead screw (28). The front side of the screening chamber (22) is provided with symmetrically distributed mounting plates (27). A lead screw (28) is rotatably connected between two horizontally adjacent mounting plates (27). The middle part of the lead screw (28) is threadedly connected to the front end of the rear adjacent adjustment frame (26).

5. The multi-stage screening device for soybean seed breeding according to claim 4, characterized in that: It also includes a motor (11). The inner side of the mounting plate (27) near the center of the outer shell (1) is equipped with a motor (11). The output shaft of the motor (11) is fixedly connected to the center of the end face of the adjacent lead screw (28) near the center of the outer shell (1). The input end of the motor (11) is electrically connected to the output end of the control switch (10).

6. The multi-stage screening device for soybean seed breeding according to claim 2, characterized in that: The screening mechanism (2) also includes an adjusting shaft (29). The rear side of the screening chamber (22) is provided with an adjusting shaft (29). An electric cylinder (7) is installed on the upper side of the outer shell (1). The telescopic end of the electric cylinder (7) passes through the upper side wall of the outer shell (1). An adjusting rod (8) is provided at the telescopic end of the electric cylinder (7). The front side of the adjusting rod (8) is provided with evenly distributed strip-shaped openings (9). The rear end of the adjusting shaft (29) is located inside the adjacent strip-shaped openings (9) on the rear side. The input end of the electric cylinder (7) is electrically connected to the output end of the control switch (10).

7. The multi-stage screening device for soybean seed breeding according to claim 1, characterized in that: The shell (1) is provided with evenly distributed slide rails (4), and each slide rail (4) is slidably connected to a collection chamber (5). The left and right side walls of the shell (1) are provided with pull-out holes (3) corresponding to the collection chambers (5).

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