A screening device for corn breeding

Abstract

The utility model discloses a screening device of corn breeding belongs to agricultural machinery technical field, a screening device of corn breeding, including screening box and the feed inlet of opening in the top edge part of screening box, install cloth mechanism on the feed inlet, the inboard fixed connection of screening box has the screening net board of angle setting, and the terminal extension of screening net board reaches the outside of screening box, the fixed connection of the below of screening net board has the guide plate of angle setting, and the terminal fixed connection of guide plate has the filter screen of extending to the bottom of screening box inner chamber, the side wall of filter screen of screening box corresponds has assembled window, and the inboard installation of assembled window has the fan, the side wall of screening box is far away from the fan and is equipped with the collecting port, it guarantees screening net board to be able to to corn seed normal screening, guarantee the efficiency of screening, can effectively prevent seed to appear loss simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and more specifically, to a screening device for corn breeding. Background Technology

[0002] Maize breeding screening refers to the process of selecting new varieties with superior traits from a large number of maize materials through a series of scientific methods and technical means.

[0003] Patent authorization number CN212681717U discloses a corn breeding screening device, including a sieve box and an air separation mechanism. The sieve box includes an outer frame, a sieve mesh, and a metal plate. The sieve mesh is set inside the outer frame, and the metal plate is set below the sieve mesh. The air separation mechanism includes a bellows, a rotary motor, a fan, a metal mesh, a fixing rod, and a connecting block. The rotary motor is set on the left end face of the bellows, the fan is set inside the bellows on the left side, the metal mesh is set on the right side of the fan, and the connecting block is set on the upper and lower end faces of the metal mesh. The bellows is fixed to the lower side of the support plate by the fixing rod. The structure is simple, easy to operate, effectively reduces vibration during device operation, collects and treats dust, reduces noise and air pollution, and improves the working environment.

[0004] However, in the process of screening corn seeds, the screen in patent authorization number CN212681717U will trap some impurities, which will affect the screening efficiency of seeds over time. In addition, the fan may blow some good corn seeds into the dust collection bag during operation, resulting in the loss of corn seeds. There is still room for improvement. Therefore, we propose a screening device for corn breeding to solve the above-mentioned problems. Utility Model Content

[0005] 1. Technical problems to be solved

[0006] In view of the problems existing in the prior art, the purpose of this utility model is to provide a screening device for maize breeding, which ensures that the screening screen can screen maize seeds normally, ensures screening efficiency, and effectively prevents seed loss.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] A screening device for maize breeding includes a screening box and a feed inlet located at the top edge of the screening box, wherein a feeding mechanism is installed on the feed inlet.

[0010] The fabric feeding mechanism includes a fabric shell that is connected in communication with the feed inlet, a feed hopper that is connected in communication with the middle of the top of the fabric shell, a shaft that is rotatably connected to the inner side of the fabric shell, a drive motor installed on the outer side of the fabric shell and whose power output end is connected to the shaft, and a double-headed spiral blade welded to the outer wall of the shaft.

[0011] A screening screen plate set at an angle is fixedly connected to the inner side of the screening box, and the end of the screening screen plate extends to the outer side of the screening box.

[0012] A guide plate set at an angle is fixedly connected below the screening screen plate, and a filter screen extending to the bottom of the screening box cavity is fixedly connected to the end of the guide plate. An assembly window is opened on the side wall of the screening box corresponding to the filter screen, and a fan is installed on the inner side of the assembly window. A collection port is opened on the side wall of the screening box away from the fan, and a dust collection bag is installed at the port of the collection port.

[0013] The outer wall of the screening box is symmetrically welded with connecting plates at its root. A frame is installed below the connecting plates. A guide post is welded through the connecting plates at the top of the frame. A spring is fitted on the guide post. A vibration motor is installed on one side of the feed inlet.

[0014] Furthermore, the upper part of the fabric shell is arranged in an arc shape, and the inner diameter of the upper part of the fabric shell is adapted to the outer diameter of the double-headed helical blade.

[0015] Furthermore, a discharge port is provided at the junction of the screening box and the end of the screening screen.

[0016] Furthermore, the screening box has a discharge port corresponding to the edge of the filter screen.

[0017] Furthermore, a limiting block is installed at the top of the guide post, and the limiting block abuts against the connecting plate.

[0018] Furthermore, the bottom end of the spring is connected to the frame, and the top end of the spring is connected to the lower surface of the connecting plate.

[0019] Furthermore, an eccentric vibrator is installed at the power output end of the vibration motor.

[0020] 3. Beneficial effects

[0021] Compared with existing technologies, the advantages of this utility model are:

[0022] (1) In this scheme, the corn seeds to be screened are added to the inside of the cloth shell through the feed hopper. At the same time, the drive motor is turned on to drive the shaft to drive the double-headed spiral blades to rotate synchronously, so that the corn seeds fall evenly onto the screening screen plate through the feed port. At the same time, the vibration motor is turned on, and the connecting plate and guide column slide under the elastic force of the spring to vibrate the screening box. The corn seeds are screened through the screening screen plate. Impurities with a particle size larger than the corn seeds are intercepted through the screening screen plate, while the corn seeds fall through the mesh of the screening screen plate. The impurities are finally discharged from the screening box through the end of the screening screen plate under vibration, so as to ensure that the screening screen plate can screen the corn seeds normally and ensure the screening efficiency.

[0023] (2) In this scheme, the corn seeds screened off are guided to the fan by the guide plate. The fan filters the shriveled seeds and dust mixed in with the corn seeds by air force, while the good and plump corn seeds are intercepted by the filter screen and fall down. The shriveled seeds and dust enter the dust collection bag through the collection port, which can effectively prevent the loss of seeds. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0026] Figure 3 This is a side view of the screening box of this utility model;

[0027] Figure 4 This is a cross-sectional view of the AA portion of the screening box of this utility model;

[0028] Figure 5 This is a side view of the fabric shell of this utility model;

[0029] Figure 6 This is a cross-sectional view of the fabric shell BB portion of this utility model.

[0030] Explanation of the labels in the diagram:

[0031] 1. Screening box; 2. Feed inlet; 3. Fabric shell; 4. Feed hopper; 5. Drive motor; 6. Shaft; 7. Double-headed spiral blades; 8. Screening mesh; 9. Guide plate; 10. Filter screen; 11. Fan; 12. Collection port; 13. Dust collection bag; 14. Connecting plate; 15. Frame; 16. Guide column; 17. Spring; 18. Vibration motor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] Example:

[0034] Please see Figure 1-6 A screening device for maize breeding includes a screening box 1 and a feed inlet 2 opened at the top edge of the screening box 1, and a feeding mechanism is installed on the feed inlet 2.

[0035] The fabric feeding mechanism includes a fabric shell 3 that is connected to the feed inlet 2, a feed hopper 4 that is connected to the middle of the top of the fabric shell 3, a shaft 6 that is rotatably connected to the inner side of the fabric shell 3, a drive motor 5 that is installed on the outer side of the fabric shell 3 and whose power output end is connected to the shaft 6, and a double-headed spiral blade 7 that is welded to the outer wall of the shaft 6.

[0036] A screening screen plate 8 is fixedly connected to the inner side of the screening box 1 at an angle, and the end of the screening screen plate 8 extends to the outer side of the screening box 1.

[0037] A guide plate 9 is fixedly connected at an angle to the bottom of the screening screen plate 8, and a filter 10 extending to the bottom of the inner cavity of the screening box 1 is fixedly connected to the end of the guide plate 9. An assembly window is opened on the side wall of the filter 10 corresponding to the screening box 1, and a fan 11 is installed on the inner side of the assembly window. A collection port 12 is opened on the side wall of the screening box 1 away from the fan 11, and a dust collection bag 13 is installed at the port of the collection port 12.

[0038] A connecting plate 14 is symmetrically welded to the root of the outer wall of the screening box 1. A frame 15 is set below the connecting plate 14. A guide post 16 that penetrates the connecting plate 14 is welded to the top of the frame 15. A spring 17 is sleeved on the guide post 16. A vibration motor 18 is installed on one side of the feed inlet 2.

[0039] It should be noted that when using this corn breeding screening device, the corn seeds to be screened are first added to the inside of the cloth shell 3 through the feed hopper 4. At the same time, the drive motor 5 is turned on to drive the shaft 6 to drive the double-headed spiral blades 7 to rotate synchronously, so that the corn seeds fall evenly onto the screening screen plate 8 through the feed port 2. At the same time, the vibration motor 18 is turned on, and under the elastic force of the spring 17, the connecting plate 14 and the guide column 16 slide to vibrate the screening box 1. The corn seeds are screened through the screening screen plate 8. Impurities with a particle size larger than the corn seeds are intercepted through the screening screen plate 8, while the corn seeds fall through the mesh of the screening screen plate 8. The impurities are finally discharged from the screening box 1 through the end of the screening screen plate 8 under vibration, so as to ensure that the screening screen plate 8 can screen the corn seeds normally and ensure the screening efficiency.

[0040] The screened corn seeds are guided to the fan 11 by the guide plate 9. The fan 11 uses air to screen the shriveled seeds and dust mixed in with the corn seeds, while the good and plump corn seeds are intercepted by the filter screen 10 and fall down. The shriveled seeds and dust enter the dust collection bag 13 through the collection port 12, which can effectively prevent seed loss.

[0041] like Figure 5 , Figure 6 As shown, the upper part of the fabric shell 3 is arranged in an arc shape, and the inner diameter of the upper part of the fabric shell 3 is adapted to the outer diameter of the double-headed spiral blade 7.

[0042] It should be noted that the double-headed spiral blades 7 facilitate the even distribution of corn seeds inside the fabric shell 3.

[0043] like Figure 4 As shown, a discharge port is provided at the junction of the screening box 1 and the screening screen plate 8.

[0044] It should be noted that by setting a discharge port, the impurities trapped by the screening screen 8 can be discharged.

[0045] like Figure 4 As shown, the screening box 1 has a discharge port at the edge of the filter screen 10;

[0046] It should be noted that the selected, plump seeds are ultimately discharged through the outlet.

[0047] like Figure 1 As shown, a limit block is installed at the top of the guide post 16, and the limit block abuts against the connecting plate 14. The bottom end of the spring 17 is connected to the frame 15, and the top end of the spring 17 is connected to the lower surface of the connecting plate 14. An eccentric vibrator is installed at the power output end of the vibration motor 18.

[0048] It should be noted that when the vibration motor 18 is turned on, and the eccentric vibrator is used in conjunction with the elastic force of the spring 17, the connecting plate 14 and the guide column 16 slide to make the screening box 1 vibrate.

[0049] In use: First, add the corn seeds to be screened into the inner side of the cloth shell 3 through the feed hopper 4. At the same time, turn on the drive motor 5 and drive the shaft 6 to drive the double-headed spiral blades 7 to rotate synchronously, so that the corn seeds fall evenly onto the screening screen plate 8 through the feed port 2. At the same time, turn on the vibration motor 18. Under the elastic force of the spring 17, the connecting plate 14 and the guide column 16 slide to make the screening box 1 vibrate. The corn seeds are screened through the screening screen plate 8. Impurities with a particle size larger than the corn seeds are intercepted through the screening screen plate 8, while the corn seeds fall through the mesh of the screening screen plate 8. The impurities are finally discharged from the screening box 1 through the end of the screening screen plate 8 under vibration, so as to ensure that the screening screen plate 8 can screen the corn seeds normally.

[0050] The screened corn seeds are guided to the fan 11 by the guide plate 9. The fan 11 uses air to screen the shriveled seeds and dust mixed in with the corn seeds, while the good and plump corn seeds are intercepted by the filter screen 10 and fall down. The shriveled seeds and dust enter the dust collection bag 13 through the collection port 12. The screened plump seeds are finally discharged through the discharge port.

[0051] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A screening device for maize breeding, comprising a screening box (1) and a feed inlet (2) located at the top edge of the screening box (1), characterized in that: A fabric feeding mechanism is installed on the feed inlet (2); The fabric feeding mechanism includes a fabric shell (3) that is connected to the feed inlet (2), a feed hopper (4) that is connected to the middle of the top of the fabric shell (3), a shaft (6) that is rotatably connected to the inner side of the fabric shell (3), a drive motor (5) installed on the outer side of the fabric shell (3) and whose power output end is connected to the shaft (6) in transmission, and a double-headed spiral blade (7) welded to the outer wall of the shaft (6); The inner side of the screening box (1) is fixedly connected to a screening screen plate (8) set at an angle, and the end of the screening screen plate (8) extends to the outer side of the screening box (1). A guide plate (9) set at an angle is fixedly connected below the screening screen plate (8), and a filter screen (10) extending to the bottom of the inner cavity of the screening box (1) is fixedly connected at the end of the guide plate (9). An assembly window is opened on the side wall of the filter screen (10) corresponding to the screening box (1), and a fan (11) is installed on the inner side of the assembly window. A collection port (12) is opened on the side wall of the screening box (1) away from the fan (11), and a dust collection bag (13) is installed at the port of the collection port (12). The outer wall of the screening box (1) is symmetrically welded with connecting plates (14). A frame (15) is provided below the connecting plate (14). A guide post (16) that penetrates the connecting plate (14) is welded to the top of the frame (15). A spring (17) is sleeved on the guide post (16). A vibration motor (18) is installed on one side of the feed inlet (2).

2. The screening device for maize breeding according to claim 1, characterized in that: The upper part of the fabric shell (3) is arranged in an arc shape, and the inner diameter of the upper part of the fabric shell (3) is adapted to the outer diameter of the double-headed spiral blade (7).

3. The screening device for maize breeding according to claim 1, characterized in that: A discharge port is provided at the end of the screening box (1) and the screening mesh plate (8).

4. The screening device for maize breeding according to claim 1, characterized in that: The screening box (1) has a discharge port at the edge of the filter screen (10).

5. The screening device for maize breeding according to claim 1, characterized in that: A limiting block is installed at the top of the guide post (16), and the limiting block abuts against the connecting plate (14).

6. The screening device for maize breeding according to claim 1, characterized in that: The bottom end of the spring (17) is connected to the frame (15), and the top end of the spring (17) is connected to the lower surface of the connecting plate (14).

7. The screening device for maize breeding according to claim 1, characterized in that: An eccentric vibrator is installed at the power output end of the vibration motor (18).

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