Alfalfa seed cleaning and sorting apparatus and method of use

Abstract

The present application relates to the technical field of cleaning device, and particularly relates to a kind of alfalfa seed cleaning and screening equipment and use method, including fixed support, the top of the fixed support is fixedly connected with fan, one side of fan surface is connected with air pipe, the other end of air pipe is connected with blowing box, the inside of the fixed support is fixedly connected with cleaning tank, and cleaning tank is provided with fixed support and is penetrated.Set by blowing box to blow air in drop chute, some light impurities and inferior seeds are separated, and a small amount of seeds are made to enter drop chute by paddle fluctuation, ensure that the airflow blown by blowing box can effectively blow impurities, ensure the working effect, and the transmission shaft is rotated by motor, the transmission effect of transmission mechanism is passed through, the transmission shaft and connecting shaft are forced to rotate in opposite directions, the cleaning effect can be guaranteed at the same time, the impurities floating on the top of brine can be cleaned, and the working effect of cleaning and screening is further improved.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, and in particular to an alfalfa seed cleaning and screening device. Background Technology

[0002] Alfalfa is a perennial herbaceous plant belonging to the legume family and the genus *Alfalfa*. Known as the "king of forage," alfalfa is not only high-yielding but also of excellent quality, readily consumed by various livestock and poultry. Selecting suitable high-quality seeds is the first step to successful alfalfa cultivation. Because alfalfa is a perennial plant, it can be used for 2-3 years, or even 4-5 years, after a single sowing. Therefore, controlling the quality of alfalfa seeds is crucial. However, some domestically produced seeds contain many impurities, and their quality cannot be guaranteed, so thorough cleaning is essential.

[0003] Existing cleaning devices for alfalfa seeds mostly involve manually soaking the seeds in water and rubbing them to remove a large number of impurities, or using simple machine washing and agitation. First, manual cleaning is labor-intensive and inefficient due to the large quantity of seeds. While simple machine washing can effectively remove dust and other impurities from the seeds, it cannot effectively remove inferior seeds that are shriveled or infested by insects, requiring subsequent screening, which is also labor-intensive and inefficient. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the background art by proposing an alfalfa seed cleaning and screening device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A type of alfalfa seed cleaning and screening equipment includes a fixed support, a fan fixedly connected to the top of the fixed support, an air duct connected to one side of the fan surface, an air blowing box connected to the other end of the air duct, a cleaning box fixedly connected inside the fixed support, the cleaning box being disposed through the fixed support, a processing box fixedly connected to the top of the cleaning box, and a feeding box connected to the top of the processing box.

[0007] The top of the feeding box has a feeding port, and the inside of the feeding box is rotatably connected to a rotating shaft. Multiple levers are fixedly connected to the surface of the rotating shaft, and the multiple levers are evenly distributed in a circular pattern on the surface of the rotating shaft. The bottom of the feeding box has a trough, and the processing box is connected to the feeding box through the trough.

[0008] The blower box is inserted into the interior of the processing box. The interior of the processing box has a material discharge chute, which is connected to the trough and is through the processing box. The interior of the processing box has a vibrating screen chamber, and a vibrating screen plate is slidably connected inside the vibrating screen chamber. A receiving box is fixedly connected to one side of the surface of the processing box and is connected to the vibrating screen chamber. A guide pipe is connected to the bottom of the processing box, and the other end of the guide pipe is connected to the washing box.

[0009] In the aforementioned alfalfa seed cleaning and screening equipment, a base plate is inserted into the bottom of the cleaning tank, a connecting shaft is rotatably connected to the surface of the base plate, and multiple baffles are fixedly connected to the surface of the connecting shaft. The multiple baffles are evenly distributed circumferentially on the surface of the connecting shaft. A connecting sleeve is fixedly connected to the top of the connecting shaft, and a transmission mechanism is set inside the connecting sleeve. A transmission shaft is rotatably connected to the top of the connecting sleeve. Multiple collection boxes are evenly clamped to the surface of the transmission shaft. The multiple collection boxes are circumferentially distributed on the surface of the transmission shaft, and the collection boxes are located below the guide pipe. A servo motor is fixedly connected inside the cleaning tank, and a pin is fixedly connected to the output end of the servo motor through a coupling. The pin is inserted into the transmission shaft.

[0010] In the above-mentioned alfalfa seed washing and screening equipment, the transmission mechanism includes an intermediate tooth and two conical teeth. The intermediate tooth and the two conical teeth are rotatably connected inside the connecting sleeve. The two conical teeth are fixedly connected to the top of the connecting shaft and the bottom of the transmission shaft, respectively. The intermediate tooth meshes between the two conical teeth, and the intermediate tooth is rotatably connected to the connecting sleeve.

[0011] In the above-mentioned alfalfa seed cleaning and screening equipment, four telescopic rods are embedded inside the fixed support. Connecting strips are fixedly connected to the bottom of the telescopic rods. A top plate is fixedly connected to one end of the four connecting strips that are close to each other. The top plate is snapped into the bottom plate. An annular filter screen is fixedly connected to the top of the bottom plate. The annular filter screen is inserted into the inside of the cleaning tank.

[0012] In the above-mentioned alfalfa seed cleaning and screening equipment, connecting wheels are symmetrically fixedly connected to both ends of the rotating shaft, and transmission grooves are symmetrically opened on both sides of the inside of the feeding box and the processing box. A belt is driven to the surface of the connecting wheel, and a guide wheel is driven to the other end of the belt. The connecting wheel and the guide wheel are rotatably connected inside the transmission groove.

[0013] In the above-mentioned alfalfa seed washing and screening equipment, a turntable is fixedly connected to one side of the guide wheel surface. The turntable is rotatably connected to the inside of the transmission groove. A pull rod is hinged to the surface of the turntable, and the other ends of the two pull rods are symmetrically hinged to both sides of the vibrating screen plate.

[0014] In the above-mentioned alfalfa seed cleaning and screening device, a locking block is fixedly connected to one side of the surface of the collection box. The locking block is inserted into the inside of the drive shaft. Locking heads are symmetrically locked on both sides of the locking block. A spring is fixedly connected to the other end of the locking head. The other end of the spring is fixedly connected to the inside of the drive shaft.

[0015] In addition, the present invention also discloses a method for using an alfalfa seed washing and screening device, comprising the following steps:

[0016] The first step is to pour the seeds into the feeding box through the feeding port. The rotation of the shaft drives the agitator to agitate the seeds. During each agitation, a small portion of the seeds can enter the processing box through the trough. When the seeds enter the discharge trough, the blower and ventilation pipe inject airflow into the blowing box. The blowing box blows air into the discharge trough, separating impurities and inferior seeds from normal seeds, and sending the impurities and inferior seeds to the surface of the vibrating screen plate.

[0017] The second step is that the rotation of the shaft will drive the connecting wheels on both sides to rotate, and the belt will drive the guide wheel to rotate, which in turn drives the turntable to rotate. The turntable drives the vibrating screen plate to slide back and forth in the vibrating screen chamber through the hinge effect of the pull rod, thus forming a stable vibrating screen effect, forcing the impurities and inferior seeds on the surface of the vibrating screen plate into the receiving box for collection.

[0018] Third, normal seeds enter the feed pipe through the feed chute. The feed pipe transports the seeds into the cleaning tank. The servo motor drives the drive shaft to rotate. At the same time, the bevel teeth at the bottom of the drive shaft drive the middle teeth to rotate, which in turn drives the bevel teeth at the top of the connecting shaft to rotate in the opposite direction. This forces the connecting shaft and the drive shaft to rotate in opposite directions. The baffle plate can agitate the seeds entering the brine, improving the cleaning effect. Meanwhile, the collection box rotates on top of the brine to further remove impurities or inferior seeds floating on the surface of the brine.

[0019] Compared with existing technologies, the advantages of this alfalfa seed washing and screening equipment are:

[0020] By blowing air into the material chute through the air blower box, some light impurities and inferior seeds are separated, and a small amount of seeds are agitated into the material chute by the deflector plate, so as to ensure that the airflow blown out by the air blower box can effectively blow away the impurities and ensure the working effect.

[0021] The motor drives the drive shaft to rotate, and through the transmission effect of the transmission mechanism, the drive shaft and the connecting shaft are forced to rotate in opposite directions. This ensures that the cleaning effect is achieved while also removing impurities floating on top of the brine, further improving the cleaning and screening efficiency.

[0022] In summary, this invention uses an air blower box to blow air into the material trough, separating some light impurities and inferior seeds. A small amount of seeds is then agitated into the material trough by a deflector plate, ensuring that the airflow from the air blower box can effectively dislodge impurities and guarantee the working effect. The motor drives the transmission shaft to rotate, and through the transmission effect of the transmission mechanism, the transmission shaft and the connecting shaft are forced to rotate in opposite directions. This ensures that while maintaining the cleaning effect, it can also clean impurities floating on the top of the brine, further improving the cleaning and screening effect. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 This is a cross-sectional view of the feeding box structure of the present invention;

[0025] Figure 3 This is a cross-sectional view of the transmission groove structure of the present invention;

[0026] Figure 4 This is the invention Figure 3 A magnified view of the structure at point A in the middle;

[0027] Figure 5 This is a cross-sectional view of the cleaning box of the present invention;

[0028] Figure 6 This is a schematic cross-sectional view of the annular filter screen of the present invention;

[0029] Figure 7 This is a schematic cross-sectional view of the connecting sleeve of the present invention;

[0030] Figure 8 This is a cross-sectional structural schematic diagram of the transmission shaft of the present invention.

[0031] In the diagram: 1. Fixed support; 2. Fan; 3. Air duct; 4. Air blowing box; 5. Cleaning box; 6. Processing box; 7. Feeding box; 8. Feeding port; 9. Rotating shaft; 10. Pulley; 11. Slot; 12. Drop chute; 13. Vibrating screen chamber; 14. Vibrating screen plate; 15. Receiving box; 16. Guide pipe; 17. Base plate; 18. Connecting shaft; 19. Baffle plate; 20. Connecting sleeve; 21. Transmission mechanism; 211. Intermediate gear; 212. Bevel gear; 22. Drive shaft; 23. Collection box; 24. Servo motor; 25. Pin head; 26. Telescopic rod; 27. Connecting strip; 28. Top plate; 29. ​​Annular filter screen; 30. Connecting wheel; 31. Transmission groove; 32. Belt; 33. Guide wheel; 34. Turntable; 35. Pull rod; 36. Locking block; 37. Locking head; 38. Spring. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Reference Figures 1-8 A type of alfalfa seed washing and screening device includes a fixed support 1, a fan 2 fixedly connected to the top of the fixed support 1, an air duct 3 connected to one side of the surface of the fan 2, and an air blowing box 4 connected to the other end of the air duct 3. A washing box 5 is fixedly connected inside the fixed support 1, and the washing box 5 is through the fixed support 1. A processing box 6 is fixedly connected to the top of the washing box 5, and a feeding box 7 is connected to the top of the processing box 6. A feeding port 8 is opened on the top of the feeding box 7. A rotating shaft 9 is rotatably connected inside the feeding box 7. Multiple levers 10 are fixedly connected to the surface of the rotating shaft 9, and the multiple levers 10 are evenly distributed in a circular pattern on the rotating shaft. On the surface of 9, a trough 11 is provided at the bottom of the feeding box 7. The processing box 6 is connected to the feeding box 7 through the trough 11. The blower box 4 is inserted into the interior of the processing box 6. A material drop trough 12 is provided inside the processing box 6. The material drop trough 12 is connected to the trough 11 and is through the processing box 6. A vibrating screen chamber 13 is provided inside the processing box 6. A vibrating screen plate 14 is slidably connected inside the vibrating screen chamber 13. A receiving box 15 is fixedly connected to one side of the surface of the processing box 6 and is connected to the vibrating screen chamber 13. A guide pipe 16 is connected to the bottom of the processing box 6. The other end of the guide pipe 16 is connected to the washing box 5.

[0035] Seeds are poured into the feeding box 7 through the feeding port 8. The rotation of the rotating shaft 9 drives the agitator 10 to agitate the seeds. During each agitation, a small portion of the seeds can enter the processing box 6 through the trough 11. When the seeds enter the dropping trough 12, the blower 2 and the ventilation pipe 3 inject airflow into the blowing box 4. The blowing box 4 blows air into the dropping trough 12, separating impurities and inferior seeds from normal seeds. The impurities and inferior seeds are then sent to the surface of the vibrating screen plate 14. Finally, the removed impurities are collected in the receiving box 15 through the vibrating effect of the vibrating screen plate 14.

[0036] Connecting wheels 30 are symmetrically fixedly connected to both ends of the rotating shaft 9. Transmission grooves 31 are symmetrically opened on both sides of the inside of the feeding box 7 and the processing box 6. A belt 32 is driven to the surface of the connecting wheel 30. A guide wheel 33 is driven to the other end of the belt 32. The connecting wheel 30 and the guide wheel 33 are rotatably connected to the inside of the transmission groove 31. A turntable 34 is fixedly connected to one side of the surface of the guide wheel 33. The turntable 34 is rotatably connected to the inside of the transmission groove 31. A pull rod 35 is hinged to the surface of the turntable 34. The other ends of the two pull rods 35 are symmetrically hinged to both sides of the vibrating screen plate 14.

[0037] The rotation of the rotating shaft 9 will drive the connecting wheels 30 on both sides to rotate, and the guide wheel 33 will rotate through the transmission effect of the belt 32, thereby driving the turntable 34 to rotate. The turntable 34 drives the vibrating screen plate 14 to slide back and forth inside the vibrating screen chamber 13 through the hinge effect of the pull rod 35, thereby forming a stable vibrating screen effect, forcing impurities and inferior seeds on the surface of the vibrating screen plate 14 into the receiving box 15 for collection.

[0038] Reference Figures 1-8 A base plate 17 is inserted into the bottom of the cleaning tank 5. A connecting shaft 18 is rotatably connected to the surface of the base plate 17. Multiple baffles 19 are fixedly connected to the surface of the connecting shaft 18, and the multiple baffles 19 are evenly distributed in a circular pattern on the surface of the connecting shaft 18. A connecting sleeve 20 is fixedly connected to the top of the connecting shaft 18. A transmission mechanism 21 is set inside the connecting sleeve 20. A transmission shaft 22 is rotatably connected to the top of the connecting sleeve 20. Multiple collection boxes 23 are evenly engaged on the surface of the transmission shaft 22, and the multiple collection boxes 23 are distributed in a circular pattern on the surface of the transmission shaft 22. Below the feed pipe 16, a servo motor 24 is fixedly connected inside the cleaning box 5. The output end of the servo motor 24 is fixedly connected to a pin 25 through a coupling. The pin 25 is inserted into the transmission shaft 22. The transmission mechanism 21 includes an intermediate tooth 211 and two bevel teeth 212. The intermediate tooth 211 and the two bevel teeth 212 are rotatably connected inside the connecting sleeve 20. The two bevel teeth 212 are fixedly connected to the top of the connecting shaft 18 and the bottom of the transmission shaft 22, respectively. The intermediate tooth 211 meshes between the two bevel teeth 212, and the intermediate tooth 211 is rotatably connected to the connecting sleeve 20.

[0039] Normal seeds enter the feed pipe 16 through the feed chute 12. The feed pipe 16 conveys the seeds into the cleaning tank 5. The servo motor 24 drives the drive shaft 22 to rotate. At the same time, the bevel gear 212 at the bottom of the drive shaft 22 drives the middle gear 211 to rotate, which in turn drives the bevel gear 212 at the top of the connecting shaft 18 to rotate in the opposite direction. This forces the connecting shaft 18 and the drive shaft 22 to rotate in opposite directions. The baffle 19 can agitate the seeds entering the brine, improving the cleaning effect. Meanwhile, the collection box 23 rotates on top of the brine to further remove impurities or inferior seeds floating on the surface of the brine. Furthermore, the rotation of the baffle 19 will cause the brine in the cleaning tank 5 to generate a vortex effect, which may force surface impurities to sink. The counter-rotating collection box 23 can effectively counteract the vortex effect, further ensuring the cleaning effect of impurities.

[0040] The fixed support 1 has four telescopic rods 26 embedded inside. The bottom of the telescopic rods 26 is fixedly connected to the connecting strips 27. The top plate 28 is fixedly connected to one end of the four connecting strips 27 that are close to each other. The top plate 28 is snapped into the bottom plate 17. The top of the bottom plate 17 is fixedly connected to the annular filter screen 29, which is inserted into the inside of the cleaning tank 5.

[0041] The top plate 28 is lowered by the telescopic rod 26 and the connecting strip 27, which in turn lowers the bottom plate 17, forcing the washed seeds to be taken out of the washing box 5. The annular filter 29 ensures that the brine after washing can be automatically separated from the seeds. After the bottom plate 17 is separated from the top plate 28, the seeds can be poured out, which facilitates the material retrieval after washing.

[0042] A locking block 36 is fixedly connected to one side of the surface of the collection box 23. The locking block 36 is inserted into the inside of the drive shaft 22. The locking heads 37 are symmetrically locked on both sides of the locking block 36. The other end of the locking head 37 is fixedly connected to a spring 38. The other end of the spring 38 is fixedly connected to the inside of the drive shaft 22. The spring 38 pushes the locking head 37 to lock with the two sides of the locking block 36, which makes it easy to disassemble and assemble the collection box 23 after use, so as to clean the impurities and inferior seeds collected inside in time and ensure the working effect of reuse.

[0043] The working principle and usage of this invention are explained in detail below: In use, firstly, seeds are poured into the feeding box 7 through the feeding port 8. The rotation of the rotating shaft 9 drives the agitator 10 to oscillate the seeds. During each oscillation, a small portion of the seeds can enter the processing box 6 through the trough 11. When the seeds enter the dropping trough 12, the blower 2 and the ventilation pipe 3 inject airflow into the blowing box 4. The blowing box 4 blows air into the dropping trough 12, separating impurities and inferior seeds from normal seeds, and sending the impurities and inferior seeds to the surface of the vibrating screen plate 14.

[0044] In the second step, the rotation of the rotating shaft 9 will drive the connecting wheels 30 on both sides to rotate, and through the transmission effect of the belt 32, the guide wheel 33 will rotate, thereby driving the turntable 34 to rotate. The turntable 34, through the hinge effect of the pull rod 35, drives the vibrating screen plate 14 to slide back and forth inside the vibrating screen chamber 13, thereby forming a stable vibrating screen effect, forcing the impurities and inferior seeds on the surface of the vibrating screen plate 14 into the receiving box 15 for collection.

[0045] Third, normal seeds enter the guide pipe 16 through the feed chute 12. The guide pipe 16 conveys the seeds into the cleaning tank 5. The servo motor 24 drives the drive shaft 22 to rotate. At the same time, the bevel tooth 212 at the bottom of the drive shaft 22 drives the middle tooth 211 to rotate, which in turn drives the bevel tooth 212 at the top of the connecting shaft 18 to rotate in the opposite direction. This forces the connecting shaft 18 and the drive shaft 22 to rotate in opposite directions. The baffle 19 can agitate the seeds entering the brine to improve the cleaning effect. Meanwhile, the collection box 23 rotates on top of the brine to further remove impurities or inferior seeds floating on the surface of the brine.

[0046] To further clarify, the aforementioned fixed connection should be interpreted broadly unless otherwise explicitly specified and limited. For example, it may be welding, gluing, or integral molding, or other conventional methods well known to those skilled in the art.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An alfalfa seed washing and screening device, comprising a fixed support (1), characterized in that: A fan (2) is fixedly connected to the top of the fixed support (1). A duct (3) is connected to one side of the surface of the fan (2). A blower box (4) is connected to the other end of the duct (3). A cleaning box (5) is fixedly connected inside the fixed support (1). The cleaning box (5) and the fixed support (1) are connected through each other. A processing box (6) is fixedly connected to the top of the cleaning box (5). A feeding box (7) is connected to the top of the processing box (6). The top of the feeding box (7) is provided with a feeding port (8), and the inside of the feeding box (7) is rotatably connected with a rotating shaft (9). Multiple levers (10) are fixedly connected to the surface of the rotating shaft (9), and the multiple levers (10) are evenly distributed in a circular pattern on the surface of the rotating shaft (9). The bottom of the feeding box (7) is provided with a trough (11), and the processing box (6) is connected to the feeding box (7) through the trough (11). The blower box (4) is inserted into the interior of the processing box (6). The interior of the processing box (6) is provided with a material drop chute (12). The material drop chute (12) is connected to the trough (11), and the material drop chute (12) is connected to the processing box (6). The interior of the processing box (6) is provided with a vibrating screen chamber (13). The vibrating screen chamber (13) is slidably connected with a vibrating screen plate (14). A receiving box (15) is fixedly connected to one side of the surface of the processing box (6), and the receiving box (15) is connected to the vibrating screen chamber (13). The bottom of the processing box (6) is connected with a guide pipe (16), and the other end of the guide pipe (16) is connected to the cleaning box (5). The bottom of the cleaning tank (5) is connected to a bottom plate (17), and a connecting shaft (18) is rotatably connected to the surface of the bottom plate (17). Multiple baffles (19) are fixedly connected to the surface of the connecting shaft (18), and the multiple baffles (19) are evenly distributed in a circular pattern on the surface of the connecting shaft (18). A connecting sleeve (20) is fixedly connected to the top of the connecting shaft (18). A transmission mechanism (21) is set inside the connecting sleeve (20). A transmission shaft (22) is rotatably connected to the top of the connecting sleeve (20). Multiple collection boxes (23) are evenly clamped to the surface of the transmission shaft (22). The multiple collection boxes (23) are circumferentially distributed on the surface of the transmission shaft (22), and the collection boxes (23) are located below the guide pipe (16). A servo motor (24) is fixedly connected inside the cleaning tank (5). A pin head (25) is fixedly connected to the output end of the servo motor (24) through a coupling. The pin head (25) is inserted into the transmission shaft (22). The transmission mechanism (21) includes an intermediate tooth (211) and two bevel teeth (212). The intermediate tooth (211) and the two bevel teeth (212) are rotatably connected to the inside of the connecting sleeve (20). The two bevel teeth (212) are fixedly connected to the top of the connecting shaft (18) and the bottom of the transmission shaft (22) respectively. The intermediate tooth (211) meshes between the two bevel teeth (212), and the intermediate tooth (211) is rotatably connected to the connecting sleeve (20). The fixed support (1) has four telescopic rods (26) embedded inside. The bottom of the telescopic rods (26) is fixedly connected to a connecting strip (27). The four connecting strips (27) are fixedly connected to a top plate (28) at one end close to each other. The top plate (28) is snapped into the bottom plate (17). The top of the bottom plate (17) is fixedly connected to an annular filter screen (29). The annular filter screen (29) is inserted into the inside of the cleaning tank (5). The two ends of the rotating shaft (9) are symmetrically fixedly connected with connecting wheels (30). The two sides of the inside of the feeding box (7) and the processing box (6) are symmetrically provided with transmission grooves (31). The surface of the connecting wheel (30) is connected with a belt (32), and the other end of the belt (32) is connected with a guide wheel (33). The connecting wheel (30) and the guide wheel (33) are rotatably connected inside the transmission groove (31). A turntable (34) is fixedly connected to one side of the surface of the guide wheel (33). The turntable (34) is rotatably connected to the inside of the transmission groove (31). A pull rod (35) is hinged to the surface of the turntable (34). The other ends of the two pull rods (35) are symmetrically hinged to both sides of the vibrating screen plate (14). The rotation of the shaft (9) will drive the connecting wheels (30) on both sides to rotate, and the guide wheel (33) will rotate through the transmission effect of the belt (32), thereby driving the turntable (34) to rotate. The turntable (34) drives the vibrating screen plate (14) to slide back and forth inside the vibrating screen chamber (13) through the hinge effect of the pull rod (35).

2. The alfalfa seed washing and screening equipment according to claim 1, characterized in that: A locking block (36) is fixedly connected to one side of the surface of the collection box (23). The locking block (36) is inserted into the inside of the drive shaft (22). The locking heads (37) are symmetrically locked on both sides of the locking block (36). A spring (38) is fixedly connected to the other end of the locking head (37). The other end of the spring (38) is fixedly connected to the inside of the drive shaft (22).

3. A method of using an alfalfa seed washing and screening device according to any one of claims 1-2, comprising the following steps: The first step is to pour the seeds into the feeding box (7) through the feeding port (8). The rotation effect of the rotating shaft (9) drives the plate (10) to oscillate the seeds. During each oscillation, a small portion of the seeds enters the processing box (6) through the trough (11). When the seeds enter the dropping trough (12), the blower (2) and the ventilation pipe (3) inject airflow into the blowing box (4). The blowing box (4) blows air into the dropping trough (12) to separate impurities and inferior seeds from normal seeds and send the impurities and inferior seeds to the surface of the vibrating screen plate (14). In the second step, the rotation of the shaft (9) will drive the connecting wheels (30) on both sides to rotate, and through the transmission effect of the belt (32), the guide wheel (33) will rotate, thereby driving the turntable (34) to rotate. The turntable (34) drives the vibrating screen plate (14) to slide back and forth inside the vibrating screen chamber (13) through the hinge effect of the pull rod (35), thereby forming a stable vibrating screen effect, forcing the impurities and inferior seeds on the surface of the vibrating screen plate (14) to enter the receiving box (15) for collection. In the third step, normal seeds enter the guide pipe (16) through the drop chute (12). The seeds are transported to the inside of the cleaning box (5) by the conveying effect of the guide pipe (16). The drive shaft (22) is driven to rotate by the servo motor (24). At the same time, the bevel tooth (212) at the bottom of the drive shaft (22) drives the middle tooth (211) to rotate, which in turn drives the bevel tooth (212) at the top of the connecting shaft (18) to rotate in the opposite direction, forcing the connecting shaft (18) and the drive shaft (22) to rotate in opposite directions. The seeds entering the brine can be stirred by the baffle plate (19) to improve the cleaning effect. At the same time, the collection box (23) rotates on the top of the brine to further remove impurities or inferior seeds floating on the surface of the brine.

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