Seed screening device for agricultural popularization

Abstract

The invention discloses a seed screening device for agricultural popularization, relates to the technical field of seed screening, and adopts the technical scheme that the seed screening device comprises a screening shell, three stages of screening plates are arranged in the screening shell, a feeding hopper is fixedly connected to the upper part of the screening shell, an equipartition wheel is rotatably connected to the interior of the feeding hopper, and a first transmission wheel is fixedly connected to one side of the equipartition wheel; the first transmission wheel is in transmission connection with a first transmission belt, the first transmission belt is in transmission connection with a second transmission wheel, the second transmission wheel is fixedly connected with a third transmission wheel, and the third transmission wheel is in transmission connection with a second transmission belt. The rotation of the uniform distribution wheel can control the seeds to continuously fall for several times, the rotation of the uniform distribution wheel can also synchronously drive a fourth transmission wheel to rotate, and the rotation of the fourth transmission wheel can drive a connecting piece to swing in a reciprocating manner so as to drive an air outlet pipe to swing, so that the action range of air flow is effectively widened, and dead angles which cannot be blown by the air flow in the screening process are prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of seed screening, in particular to a seed screening device for agricultural promotion. Background Art

[0002] The seed screening device for agricultural promotion is a pretreatment equipment developed based on the characteristics of subtropical fruit crops. It is specially optimized for the cultivation of tropical fruit trees such as lychee and longan. The device uses a multi-stage screening process to accurately remove moldy, insect-infested and underdeveloped seeds, and scientifically classifies them according to particle size and density to effectively ensure the vitality of sown seeds. The equipment adopts a moisture-proof design, adapts to humid and hot climate environments, and greatly reduces seed storage losses. The use of this device can promote the consistency of fruit tree growth, provide key technical support for standardized planting in the subtropical fruit industry, and help achieve the high-quality and high-yield production goals of the modern fruit industry.

[0003] In actual use, when processing subtropical fruit seeds, the conventional screening device is prone to clogging of the sieve holes due to the accumulation of mucus or impurities on the seed surface, requiring frequent shutdown for cleaning. In addition, the fixed-direction airflow set on the screening device easily leads to uneven screening, and the edge area of ​​the sieve plate is prone to forming screening dead corners. Therefore, a seed screening device for agricultural promotion is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the conventional screening device in the prior art, in which, when processing subtropical fruit seeds, the sieve holes are easily clogged due to the accumulation of mucus or impurities on the seed surface, requiring frequent shutdown for cleaning. In addition, the fixed-direction airflow set on the screening device easily leads to uneven screening, and the edge area of ​​the sieve plate easily forms screening dead corners. A seed screening device for agricultural promotion is proposed to solve the shortcomings of the conventional screening device in the prior art, in which the sieve holes are easily clogged due to the accumulation of mucus or impurities on the seed surface, requiring frequent shutdown for cleaning. In addition, the fixed-direction airflow set on the screening device easily leads to uneven screening, and the edge area of ​​the sieve plate easily forms screening dead corners.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A seed screening device for agricultural promotion includes a screening shell, wherein a three-stage screening plate is arranged inside the screening shell, the upper portion of the screening shell is fixedly connected to a feed hopper, the feed hopper is rotatably connected to an equalizing wheel, one side of the equalizing wheel is fixedly connected to a first transmission wheel, the first transmission wheel is transmission-connected to a first transmission belt, the first transmission belt is transmission-connected to a second transmission wheel, the second transmission wheel is fixedly connected to a third transmission wheel, the third transmission wheel is transmission-connected to a second transmission belt, the second transmission belt is transmission-connected to a fourth transmission wheel, the fourth transmission wheel is rotationally connected to a swing housing, the swing housing is fixedly connected to the upper portion of the screening shell, the fourth transmission wheel is fixedly connected to a first eccentric shaft, the first eccentric shaft is slidably connected to a swing member, the swing member is rotationally connected to the swing housing, the swing member is fixedly connected to a connecting member, and the connecting member is fixedly connected to an air outlet pipe.

[0007] Tropical fruit seeds are put into the screening shell through the feed hopper. During the feeding process, the seeds drive the averaging wheel to rotate. The seeds that enter the screening shell fall onto the surface of the three-stage screening plate for screening. The rotation of the averaging wheel synchronously drives the first transmission wheel to rotate. The rotation of the first transmission wheel drives the fourth transmission wheel to rotate. The rotation of the fourth transmission wheel drives the connecting part to swing back and forth, and then drives the air outlet pipe to swing back and forth to perform airflow screening on the seeds screened on the upper part of the three-stage screening plate and dry the seeds. The swinging action eliminates the dead corners of airflow screening.

[0008] The above technical solution further includes:

[0009] A fourth collecting tank is provided on one side of the screening shell, and a filter plate is fixedly connected to the side of the fourth collecting tank close to the third-stage screening plate.

[0010] A second collecting trough is provided at the lower part of the three-stage screening plate, a third collecting trough is provided at the front end of the second collecting trough, and a first collecting trough is provided at the front end of the third collecting trough. The sieve holes on the upper part of the three-stage screening plate are divided into three parts according to the diameter. The sieve holes on the upper part of the second collecting trough have the largest diameter, and the sieve holes on the upper part of the first collecting trough have the smallest diameter.

[0011] A servo motor is provided at the bottom of the screening housing, a third transmission belt is provided at the output end of the servo motor, the third transmission belt is connected to a fifth transmission wheel, and the fifth transmission wheel is rotationally connected to the screening housing.

[0012] The fifth transmission wheel is fixedly connected to the first gear, the first gear is meshedly connected to the second gear, and the second gear is rotationally connected to the screening housing.

[0013] The second gear is fixedly connected to the second eccentric shaft, the second eccentric shaft is rotatably connected to the rotating plate, the rotating plate is rotatably connected to the vibration rod, and the upper part of the vibration rod is fixedly connected to the three-stage screening plate.

[0014] The fifth transmission wheel is connected to the fourth transmission belt, the fourth transmission belt is connected to the sixth transmission wheel, the sixth transmission wheel is rotatably connected to the screening shell, and two grooves are provided inside the fifth transmission wheel, which can be respectively connected to the third transmission belt and the fourth transmission belt through the two grooves.

[0015] The sixth transmission wheel is fixedly connected with a fan blade, and the fan blade is rotationally connected to the blowing shell, and the blowing shell is fixedly connected to the lower part of the screening shell.

[0016] A ventilation duct is provided on one side of the blowing shell, and an air outlet pipe is fixedly connected to the side of the ventilation duct away from the blowing shell. A heating component is provided inside the ventilation duct, and the air flow passing through the inside of the ventilation duct is heated by the heating component so that the air outlet pipe blows out hot air. The air outlet pipe is a hose and can be bent at will.

[0017] The present invention has the following beneficial effects:

[0018] 1. In the present invention, tropical fruit seeds can be put into the screening shell through the feed hopper. After entering the screening shell, the seeds can fall on the surface of the three-stage screening plate for screening. When the seeds pass through the feed hopper, they can drive the averaging wheel to rotate. The rotation of the averaging wheel can control the seeds to fall continuously in batches. The rotation of the averaging wheel can also synchronously drive the fourth transmission wheel to rotate. The rotation of the fourth transmission wheel can drive the connecting piece to swing back and forth, and then drive the air outlet pipe to swing, effectively increasing the range of the airflow and preventing dead corners that the airflow cannot reach during the screening process. At the same time, the heating component arranged inside the ventilation duct can also heat the airflow ejected from the air outlet pipe to form hot air, thereby drying the mucus on the surface of the seeds, making the seeds dry and not easy to mold.

[0019] 2. In the present invention, three-stage sieve holes are provided on the upper part of the three-stage screening plate, and the apertures of the three-stage sieve holes increase successively, which can effectively screen impurities of different volumes, effectively improving the screening effect of the three-stage screening plate, and by starting the servo motor, the fifth transmission wheel can be driven to rotate, and the rotation of the fifth transmission wheel can drive the third transmission belt and the fourth transmission belt to rotate. The rotation of the third transmission belt can drive the vibration rod to vibrate up and down, thereby driving the three-stage screening plate to vibrate, thereby improving the screening effect of seeds, and the rotation of the fourth transmission belt can drive the fan blades to rotate, thereby sending the outside air into the ventilation duct, and finally spraying it out from the air outlet pipe for airflow screening. The screening effect is further improved through the combined screening mode of physical combination with airflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a seed screening device for agricultural promotion proposed by the present invention;

[0021] Figure 2 Schematic diagram of the internal structure of the screening shell in the present invention;

[0022] Figure 3 Schematic diagram of the internal structure of the feed hopper in the present invention;

[0023] Figure 4 Schematic diagram of the connection relationship of the swing housing in the present invention;

[0024] Figure 5 It is a plan view of the internal structure of the screening shell in the present invention;

[0025] Figure 6 Schematic diagram of the connection relationship of the fifth transmission wheel in the present invention.

[0026] In the figure: 1. screening shell; 2. feed hopper; 3. blowing shell; 4. ventilation duct; 5. air outlet pipe; 6. swing shell; 7. first collecting trough; 8. second collecting trough; 9. third collecting trough; 10. three-stage screening plate; 11. filter plate; 12. fourth collecting trough; 13. equalizing wheel; 14. first transmission wheel; 15. first transmission belt; 16. second transmission wheel; 17. third transmission wheel; 18. second transmission belt; 19. fourth transmission wheel; 20. first eccentric shaft; 21. swinging member; 22. connecting member; 23. servo motor; 24. fifth transmission wheel; 25. vibration rod; 26. fan blade; 27. third transmission belt; 28. fourth transmission belt; 29. ​​sixth transmission wheel; 30. first gear; 31. second gear; 32. second eccentric shaft; 33. rotating plate. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] like Figures 1-6 As shown, a seed screening device for agricultural promotion includes a screening shell 1, a three-stage screening plate 10 is arranged inside the screening shell 1, a feed hopper 2 is fixedly connected to the upper part of the screening shell 1, an equalizing wheel 13 is rotatably connected inside the feed hopper 2, a first transmission wheel 14 is fixedly connected to one side of the equalizing wheel 13, the first transmission wheel 14 is transmission-connected to the first transmission belt 15, the first transmission belt 15 is transmission-connected to the second transmission wheel 16, the second transmission wheel 16 is fixedly connected to the third transmission wheel 17, the third transmission wheel 17 is transmission-connected to the second transmission belt 18, the second transmission belt 18 is transmission-connected to the fourth transmission wheel 19, the fourth transmission wheel 19 is rotationally connected to the swing shell 6, the swing shell 6 is fixedly connected to the upper part of the screening shell 1, the fourth transmission wheel 19 is fixedly connected to the first eccentric shaft 20, the first eccentric shaft 20 is slidably connected to the swing member 21, the swing member 21 is rotationally connected to the swing shell 6, the swing member 21 is fixedly connected to the connecting member 22, and the connecting member 22 is fixedly connected to the air outlet pipe 5.

[0030] Tropical fruit seeds are put into the screening shell 1 through the hopper 2. During the feeding process, the seeds drive the averaging wheel 13 to rotate, and the seeds entering the screening shell 1 fall onto the surface of the three-stage screening plate 10 for screening. The rotation of the averaging wheel 13 synchronously drives the first transmission wheel 14 to rotate, and the rotation of the first transmission wheel 14 drives the fourth transmission wheel 19 to rotate. The rotation of the fourth transmission wheel 19 drives the connecting member 22 to swing back and forth, and then drives the air outlet pipe 5 to swing back and forth to perform airflow screening on the seeds screened on the upper part of the three-stage screening plate 10 and dry the seeds. The swinging action eliminates the dead corners of the airflow screening. A fourth collecting trough 12 is provided on one side of the screening shell 1, and the fourth collecting trough 12 is fixedly connected to the filter plate 11 on the side close to the three-stage screening plate 10.

[0031] A ventilation duct 4 is provided on one side of the blowing shell 3, and an air outlet pipe 5 is fixedly connected to the side of the ventilation duct 4 away from the blowing shell 3. A heating component is provided inside the ventilation duct 4, and the air flow passing through the inside of the ventilation duct 4 is heated by the heating component, so that the air outlet pipe 5 blows out hot air. The air outlet pipe 5 is a hose and can be bent at will.

[0032] In this embodiment, tropical fruit seeds can be put into the screening housing 1 through the feed hopper 2. After entering the screening housing 1, the seeds can fall on the surface of the three-stage screening plate 10 for screening. In the process of the seeds passing through the feed hopper 2, the seeds can drive the equalizing wheel 13 to rotate under the action of gravity. The rotation of the equalizing wheel 13 can control the seeds to fall continuously in batches, thereby effectively reducing the seed feeding rate and facilitating subsequent screening. The rotation of the equalizing wheel 13 can also synchronously drive the first transmission wheel 14 to rotate. The rotation of the first transmission wheel 14 drives the second transmission wheel 16 connected by the first transmission belt 15 to rotate. The rotation of the second transmission wheel 16 can drive the third transmission wheel 17 fixedly connected to the third transmission wheel 17 to rotate. 7 rotates to drive the second transmission belt 18 of the transmission connection to rotate, and the rotation of the second transmission belt 18 can drive the fourth transmission wheel 19 of the transmission connection to rotate, and the rotation of the fourth transmission wheel 19 can drive the fixedly connected first eccentric shaft 20 to rotate, and the rotation of the first eccentric shaft 20 drives the slidingly connected swinging member 21 to rotate, and the rotation of the swinging member 21 drives the fixedly connected connecting member 22 to swing back and forth, thereby driving the air outlet pipe 5 to swing, effectively increasing the range of the airflow and preventing the airflow from reaching dead corners during the screening process. At the same time, the heating component arranged inside the ventilation duct 4 can also heat the airflow ejected from the air outlet pipe 5 to form hot air, thereby drying the mucus on the surface of the seeds, making the seeds dry and not easy to mold.

[0033] Example 2

[0034] like Figures 1-6As shown, a second collecting trough 8 is provided at the lower part of the three-stage screening plate 10, a third collecting trough 9 is provided at the front end of the second collecting trough 8, and a first collecting trough 7 is provided at the front end of the third collecting trough 9. The upper sieve holes of the three-stage screening plate 10 are divided into three parts according to the diameter. The upper sieve holes of the second collecting trough 8 have the largest diameter, and the upper sieve holes of the first collecting trough 7 have the smallest diameter. A servo motor 23 is provided at the bottom of the screening housing 1, and a third transmission belt 27 is provided at the output end of the servo motor 23. The third transmission belt 27 is connected to the fifth transmission wheel 24 for transmission, and the fifth transmission wheel 24 is rotatably connected to the screening housing 1.

[0035] The fifth transmission wheel 24 is fixedly connected to the first gear 30, the first gear 30 is meshed with the second gear 31, the second gear 31 is rotatably connected to the screening housing 1, the second gear 31 is fixedly connected to the second eccentric shaft 32, the second eccentric shaft 32 is rotatably connected to the rotating plate 33, the rotating plate 33 is rotatably connected to the vibration rod 25, the upper part of the vibration rod 25 is fixedly connected to the three-stage screening plate 10, the fifth transmission wheel 24 is transmission-connected to the fourth transmission belt 28, the fourth transmission belt 28 is transmission-connected to the sixth transmission wheel 29, the sixth transmission wheel 29 is rotatably connected to the screening housing 1, two grooves are provided inside the fifth transmission wheel 24, the third transmission belt 27 and the fourth transmission belt 28 can be respectively transmission-connected through the two grooves, the sixth transmission wheel 29 is fixedly connected to the fan blade 26, the fan blade 26 is rotatably connected to the blowing shell 3, and the blowing shell 3 is fixedly connected to the lower part of the screening shell 1.

[0036] In this embodiment, the upper part of the three-stage screening plate 10 is provided with three-stage sieve holes, and the apertures of the three-stage sieve holes increase in sequence, which can effectively screen impurities of different volumes, effectively improving the screening effect of the three-stage screening plate 10, and the screened impurities can enter the first collection trough 7, the second collection trough 8 and the third collection trough 9 for collection, and by starting the servo motor 23, the fifth transmission wheel 24 can be driven to rotate, and the rotation of the fifth transmission wheel 24 can drive the third transmission belt 27 and the first gear 30 to rotate, and the rotation of the first gear 30 can drive the meshing connection of the second gear 31 to rotate, and the rotation of the second gear 31 drives the fixed connection of the second gear 31 to rotate. The eccentric shaft 32 rotates, and the rotation of the second eccentric shaft 32 drives the rotating plate 33 connected to it to rotate. The rotation of the rotating plate 33 drives the rotating vibration rod 25 connected to it to vibrate back and forth, thereby driving the three-stage screening plate 10 to vibrate, thereby improving the seed screening effect. The rotation of the fourth transmission belt 28 can drive the sixth transmission wheel 29 to rotate, thereby sending the outside air into the ventilation duct 4 and finally ejecting it from the air outlet pipe 5 for airflow screening. During the airflow screening process, small particles of impurities such as dust in the seeds can be sent into the fourth collection tank 12 through the filter plate 11. The screening effect is further improved by the combined screening mode of physical combination with airflow.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A seed screening device for agricultural promotion, comprising a screening housing (1), characterized in that: A three-stage screening plate (10) is provided inside the screening housing (1), a feed hopper (2) is fixedly connected to the upper portion of the screening housing (1), an equalizing wheel (13) is rotatably connected inside the feed hopper (2), a first transmission wheel (14) is fixedly connected to one side of the equalizing wheel (13), the first transmission wheel (14) is transmission-connected to a first transmission belt (15), the first transmission belt (15) is transmission-connected to a second transmission wheel (16), the second transmission wheel (16) is fixedly connected to a third transmission wheel (17), the third transmission wheel (17) is transmission-connected to a second transmission belt ( 18), the second transmission belt (18) is connected to a fourth transmission wheel (19), the fourth transmission wheel (19) is rotatably connected to the swing housing (6), the swing housing (6) is fixedly connected to the upper part of the screening housing (1), the fourth transmission wheel (19) is fixedly connected to the first eccentric shaft (20), the first eccentric shaft (20) is slidably connected to a swing member (21), the swing member (21) is rotatably connected to the swing housing (6), the swing member (21) is fixedly connected to a connecting member (22), and the connecting member (22) is fixedly connected to the air outlet pipe (5); Tropical fruit seeds are put into the interior of a screening housing (1) through a hopper (2). During the putting process, the seeds drive the equalizing wheel (13) to rotate. The seeds that enter the screening housing (1) fall onto the surface of the three-stage screening plate (10) for screening. The rotation of the equalizing wheel (13) synchronously drives the first transmission wheel (14) to rotate. The rotation of the first transmission wheel (14) drives the fourth transmission wheel (19) to rotate. The rotation of the fourth transmission wheel (19) drives the connecting member (22) to swing back and forth, thereby driving the air outlet pipe (5) to swing back and forth to perform airflow screening on the seeds screened on the upper part of the three-stage screening plate (10) and blow dry the seeds. Under the swinging action, dead corners of airflow screening are eliminated.

2. A seed screening device for agricultural promotion according to claim 1, characterized in that: A fourth collecting trough (12) is provided on one side of the screening housing (1), and a filter plate (11) is fixedly connected to the side of the fourth collecting trough (12) close to the third-stage screening plate (10).

3. The seed screening device for agricultural promotion according to claim 1, characterized in that: A second collecting trough (8) is provided at the lower part of the screening housing (1), a third collecting trough (9) is provided at the front end of the second collecting trough (8), and a first collecting trough (7) is provided at the front end of the third collecting trough (9).

4. The seed screening device for agricultural promotion according to claim 1, characterized in that: A servo motor (23) is provided at the bottom of the screening housing (1); a third transmission belt (27) is provided at the output end of the servo motor (23); the third transmission belt (27) is transmission-connected to a fifth transmission wheel (24); and the fifth transmission wheel (24) is rotationally connected to the screening housing (1).

5. The seed screening device for agricultural promotion according to claim 4, characterized in that: The fifth transmission wheel (24) is fixedly connected to a first gear (30), the first gear (30) is meshedly connected to a second gear (31), and the second gear (31) is rotationally connected to the screening housing (1).

6. The seed screening device for agricultural promotion according to claim 5, characterized in that: The second gear (31) is fixedly connected to a second eccentric shaft (32), the second eccentric shaft (32) is rotatably connected to a rotating plate (33), the rotating plate (33) is rotatably connected to a vibration rod (25), and the upper part of the vibration rod (25) is fixedly connected to a three-stage screening plate (10).

7. The seed screening device for agricultural promotion according to claim 4, characterized in that: The fifth transmission wheel (24) is connected to a fourth transmission belt (28), the fourth transmission belt (28) is connected to a sixth transmission wheel (29), and the sixth transmission wheel (29) is rotationally connected to the screening housing (1).

8. The seed screening device for agricultural promotion according to claim 7, characterized in that: The sixth transmission wheel (29) is fixedly connected to a fan blade (26), and the fan blade (26) is rotationally connected to the blowing shell (3), and the blowing shell (3) is fixedly connected to the lower part of the screening shell (1).

9. The seed screening device for agricultural promotion according to claim 8, characterized in that: A ventilation duct (4) is provided on one side of the air blowing housing (3), and an air outlet pipe (5) is fixedly connected to the side of the ventilation duct (4) away from the air blowing housing (3).

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