Seed cleaning machine

Abstract

The utility model belongs to the technical field of agricultural machinery, and particularly relates to a seed cleaning machine. Comprising a rack, a feeding device, a screening device, an air suction device and a vibration device are arranged on the rack, the screening device comprises a first material guide plate, the feeding end of the first material guide plate is higher than the discharging end of the first material guide plate, a first screen is arranged above the first material guide plate, and a bad particle discharging plate is arranged below the first material guide plate; a first material guide plate is arranged below the first screen, a discharging end of the first material guide plate corresponds to a feeding end of the bad particle discharging plate, a second material guide plate is arranged below the bad particle discharging plate, a feeding end of the second material guide plate corresponds to a discharging end of the first screen, a discharging end of the second material guide plate is located above the second screen, and a fan for blowing good particles out of the second screen is arranged below the second screen. The air suction device comprises an air suction opening and an impurity discharging opening, and the air suction opening is located above the first screen. Screening is conducted through the two screens, and the screening precision is high.

Description

Technical Field:

[0001] The utility model belongs to the technical field of agricultural machinery, and particularly refers to a seed cleaner. Background Art:

[0002] A seed cleaner refers to a device that selects qualified and excellent seeds by utilizing the differences in the shape, size, specific gravity, surface characteristics, and aerodynamic characteristics between seeds and impurities.

[0003] The Chinese utility model patent (authorization publication number CN 219923697 U, application date Mar. 14, 2023, publication date Oct. 31, 2023) discloses a rice seed air-screen cleaner, which includes: a cleaning box, and a housing is fixedly installed on the top of the cleaning box; a screening assembly, which is arranged inside the cleaning box, and the screening assembly includes a first movable plate, a second movable plate, a first slider, a return spring, and a screening frame. The first slider drives the first movable plate and the screening frame to slide up and down, and through the reaction force of the return spring, the first movable plate and the second movable plate drive the screening frame to swing up and down back and forth, facilitating the screening of rice seeds. This rice seed air-screen cleaner only undergoes one screening, and the screening accuracy is poor. Summary of the Invention:

[0004] The purpose of the utility model is to provide a seed cleaner with high screening accuracy.

[0005] The utility model is implemented as follows:

[0006] A seed cleaner includes a frame, and a feeding device, a screening device, a suction device, and a vibration device are arranged on the frame. The screening device includes a first guide plate, the feeding end of the first guide plate is higher than the discharging end, a first screen is arranged above the first guide plate, a defective grain discharging plate is arranged below the first guide plate, the discharging end of the first guide plate is correspondingly arranged with the feeding end of the defective grain discharging plate, a second guide plate is arranged below the defective grain discharging plate, the feeding end of the second guide plate is correspondingly arranged with the discharging end of the first screen, and the discharging end is located above a second screen. A blower for blowing good grains out of the second screen is arranged below the second screen. The suction device includes a suction port and a waste discharging port, and the suction port is located above the first screen.

[0007] In the above-mentioned seed cleaner, the suction device further includes a suction pipe and a suction fan. One end of the suction pipe is the suction port, and the other end is connected to the suction fan. The suction fan includes a suction fan housing and a wind leaf shaft rotatably arranged inside the suction fan housing. Wind leaves are arranged on the wind leaf shaft, and the waste discharging port is arranged on the suction fan housing.

[0008] In the above-mentioned seed cleaner, a guide plate is provided above the second sieve and at one end close to the outlet. A good-grain discharge port is provided at the outlet end of the second sieve, and the guide plate is connected to the good-grain discharge port.

[0009] In the above-mentioned seed cleaner, the feeding device includes a first feeding hopper and a housing. An inlet and an outlet are provided on the housing. The first feeding hopper is arranged at the inlet, and the outlet is located above the first sieve. A deflating shaft is arranged in the housing between the inlet and the outlet. The deflating shaft is horizontally arranged and is driven to rotate by a first motor.

[0010] In the above-mentioned seed cleaner, a conveyor belt is further included. A second feeding hopper is arranged above one end of the conveyor belt, and the other end of the conveyor belt is located above the first feeding hopper of the feeding device.

[0011] In the above-mentioned seed cleaner, one end of the conveyor belt is arranged on the second feeding hopper support, and the second feeding hopper is erected above one end of the conveyor belt.

[0012] In the above-mentioned seed cleaner, the fan includes a fan housing and a fan shaft, and fan blades are arranged on the fan shaft.

[0013] In the above-mentioned seed cleaner, one end of the fan shaft extends out of the suction fan housing and is rotatably arranged on the frame through a bearing. A first belt pulley is arranged on the fan shaft. A second motor is arranged on the frame, and a second belt pulley is arranged on the rotating shaft of the second motor. A third belt pulley is arranged on the fan shaft. The first belt pulley and the second belt pulley are connected by a first belt in a transmission manner, and the second belt pulley and the third belt pulley are connected by a second belt in a transmission manner.

[0014] In the above-mentioned seed cleaner, the vibration device includes an eccentric wheel shaft rotatably arranged on the frame. An eccentric wheel is arranged on the eccentric wheel shaft. The eccentric wheel abuts against the fan housing to drive the second sieve to vibrate. A fourth belt pulley is arranged at one end of the eccentric wheel shaft. The fourth belt pulley and the second belt pulley are connected by a third belt in a transmission manner. The first linkage rod and the second linkage rod penetrate through the fan housing horizontally at intervals in the front and back. The two ends of the first linkage rod and the second linkage rod extend out of the fan housing. The two ends of the first linkage rod are respectively connected to the first rotating shaft through the first transmission rod. The first rotating shaft is rotatably arranged on the frame above the second sieve. The two ends of the second linkage rod are respectively connected to the second rotating shaft through the second transmission rod. The second rotating shaft is rotatably arranged on the frame below the bad-grain discharge plate and contacts the bottom surface of the bad-grain discharge plate. The second linkage rod is further connected to the third rotating shaft through the third transmission rod. The third rotating shaft is rotatably arranged on the frame below one side of the first guide plate. A connecting rod is arranged on the third rotating shaft, and a roller is arranged on the connecting rod. The roller abuts against the connecting member of the first guide plate and the first sieve.

[0015] In the above-mentioned seed cleaner, a spring is inclinedly arranged at the bottom of the fan housing. One end of the spring abuts against the fan housing, and the other end is arranged on the spring seat of the frame.

[0016] The prominent advantages of the present utility model compared with the prior art are as follows:

[0017] 1. The suction device provided in the present utility model blows away the light impurities (such as chaff, shriveled grains, awns, etc.) in the seeds, improves the ability to clean the light impurities, and increases the screening accuracy.

[0018] 2. The actions of the suction fan, the fan and the vibration device of the present utility model are driven by one motor, with a compact structure and reasonable layout, effectively reducing the production cost.

[0019] 3. The screening device of the present utility model vibrates through an eccentric wheel, which is convenient for sieving.

[0020] 4. The present utility model is sieved through two sieve meshes, with high screening accuracy. Description of the drawings:

[0021] Figure 1 is one of the three-dimensional schematic diagrams of the present utility model;

[0022] Figure 2 is the second three-dimensional schematic diagram of the present utility model;

[0023] Figure 3 is the right view after the feeding device of the present utility model is removed;

[0024] Figure 4 is Figure 3 the A-A cross-sectional view of

[0025] In the figure: 1, frame; 2, suction air pipe; 3, first material guiding plate; 4, first screen; 5, defective grain discharging plate; 6, second material guiding plate; 7, second screen; 8, suction fan; 9, suction fan housing; 10, air blade shaft; 11, air blade; 12, impurity discharging port; 13, top cover; 14, guiding plate; 15, good grain discharging port; 16, first feed hopper; 17, outer shell; 18, awn beating shaft; 19, first motor; 20, sixth pulley; 21, transmission belt; 22, second feed hopper; 23, second feed hopper bracket; 24, fan housing; 25, fan shaft; 26, fan blade; 27, first pulley; 28, second motor; 29, second pulley; 30, third pulley; 31, first belt; 32, second belt; 33, eccentric wheel shaft; 34, eccentric wheel; 35, fourth pulley; 36, third belt; 37, first linkage rod; 38, second linkage rod; 39, first transmission rod; 40, first rotating shaft; 41, second transmission rod; 42, second rotating shaft; 43, third transmission rod; 44, third rotating shaft; 45, connecting rod; 46, spring; 47, spring seat; 48, roller; 49, push handle. Detailed implementation manners:

[0026] The following further describes the present utility model with specific embodiments. Refer to Figure 1 —4:

[0027] The present utility model provides a seed cleaning machine, which includes a frame 1. An inlet device, a screening device, a suction air device and a vibration device are arranged on the frame 1. The screening device includes an inclined first material guiding plate 3, the feeding end of the first material guiding plate 3 is higher than the discharging end. A first screen 4 is arranged above the first material guiding plate 3, and a defective grain discharging plate 5 is arranged below the first material guiding plate 3. Generally, a defective grain collection box is arranged at the outlet of the defective grain discharging plate 5. The discharging end of the first material guiding plate 3 is correspondingly arranged with the feeding end of the defective grain discharging plate 5. A second material guiding plate 6 is arranged below the defective grain discharging plate 5. The feeding end of the second material guiding plate 6 is correspondingly arranged with the discharging end of the first screen 4, and the discharging end is above the second screen 7. A fan for blowing good grains out of the second screen 7 is arranged below the second screen 7. In this embodiment, the suction air device includes a suction air pipe 2 and a suction fan 8. One end of the suction air pipe 2 is a suction air port, which is above the first screen 4, and the other end is communicated with the suction fan 8. The suction fan 8 includes a suction fan housing 9 and an air blade shaft 10 rotatably arranged in the suction fan housing 9. An air blade 11 is arranged on the air blade shaft 10, and an impurity discharging port 12 is arranged on the suction fan housing 9. A top cover 13 is arranged at the top of the frame 1 of the present utility model. One end of the suction air pipe 2 penetrates through the top cover 13 and is above the first screen 4. The top cover 13 also has the function of fixing one end of the suction air pipe 2.

[0028] The seeds of the utility model entering the screening device from the feeding device usually contain impurities, seed husks, shriveled grains, etc. The vibration device drives the first screen 4 and the second screen 4 to vibrate for screening. When the seeds pass through the first screen 4 for screening, impurities, defective grains, etc. will be screened into the first guide plate 3 and discharged outward. The suction fan 8 works, and the suction air pipe 2 sucks the light impurities such as seed husks, shriveled grains, and awns into the suction air pipe 2 and discharges them outward through the suction fan housing 9 and the impurity discharge port 12. Usually, a impurity collection box or impurity collection bag is arranged at the impurity discharge port 12 to reduce dust and improve the workshop environment. The seeds passing through the first screening enter the second guide plate 6 from the discharge end of the first screen 4 and then enter the second screen 7 for secondary screening. After the first screening, the impurities, defective grains, etc. (less) mixed in are screened into the fan, and the good grains are blown out of the second screen 7 by the fan and collected.

[0029] In the utility model, a guide plate 14 is arranged above the second screen 7 and near one end of the outlet, which plays a certain guiding role for the good grains. A good grain discharge port 15 is arranged at the outlet end of the second screen 7. The guide plate 14 is connected to the good grain discharge port 15. Usually, a seed collection box or seed collection bag is arranged at the good grain discharge port 15.

[0030] Furthermore, the feeding device includes a first feeding hopper 16 and a housing 17. A feeding port and a discharge port are arranged on the housing 17. The first feeding hopper 16 is arranged at the feeding port, and the discharge port penetrates through the top cover 13 and is located above the first screen 7. Awn removing shaft 18 is arranged in the housing 17 between the feeding port and the discharge port. The awn removing shaft 18 is horizontally arranged and is driven to rotate by a first motor 19.

[0031] Specifically, a fifth pulley is arranged on the rotating shaft of the first motor 19, and a sixth pulley 20 is arranged on the awn removing shaft 18. The fifth pulley and the sixth pulley 20 are connected by a fourth belt for transmission. The awn removing shaft 18 can remove the awns on the seeds.

[0032] The utility model further includes a conveyor belt 21. A second feeding hopper 22 is arranged above one end of the conveyor belt 21, and the other end of the conveyor belt 21 is located above the first feeding hopper 16 of the feeding device.

[0033] The seeds fall on one end of the conveyor belt 21 through the second feeding hopper 22, and the conveyor belt 21 conveys the seeds upward to the first feeding hopper 16 in sequence.

[0034] In the utility model, one end of the conveyor belt 21 is fixedly arranged on the second feeding hopper bracket 23, and the second feeding hopper 22 is erected above one end of the conveyor belt 21.

[0035] It should be noted that the fan of the utility model includes a fan housing 24 and a fan shaft 25, and fan blades 26 are arranged on the fan shaft 25.

[0036] Furthermore, one end of the impeller shaft 10 of the suction fan 8 extends out of the suction fan housing 9 and is rotatably arranged on the frame 1 through a bearing. A first pulley 27 is arranged on the impeller shaft 10, a second motor 28 is arranged on the frame 1, a second pulley 29 is arranged on the rotating shaft of the second motor 28, a third pulley 30 is arranged on the fan shaft 25, and the first pulley 27 and the second pulley 29 are drivingly connected through a first belt 31, and the second pulley 29 and the third pulley 30 are drivingly connected through a second belt 32.

[0037] The above structure uses one motor to drive the fan shaft 25 and the impeller shaft 10 to rotate simultaneously, with a compact structure and effectively reducing costs.

[0038] In addition, the vibration device of the present utility model has the following structure:

[0039] It includes an eccentric wheel shaft 33 rotatably arranged on the frame 1. An eccentric wheel 34 is arranged on the eccentric wheel shaft 33. The eccentric wheel 34 abuts against the fan housing 24 to drive the second sieve 7 to vibrate. One end of the eccentric wheel shaft 33 is provided with a fourth pulley 35, and the fourth pulley 35 and the third pulley 30 are drivingly connected through a third belt 36. The first linkage rod 37 and the second linkage rod 38 are horizontally penetrated through the fan housing 9 at intervals in the front and rear. The two ends of the first linkage rod 37 and the second linkage rod 38 extend out of the fan housing 24. The two ends of the first linkage rod 37 are respectively connected to the first rotating shaft 40 through the first transmission rod 39. The first rotating shaft 40 is rotatably arranged on the frame 1 above the second sieve 7. The two ends of the second linkage rod 38 are respectively connected to the second rotating shaft 42 through the second transmission rod 41. The second rotating shaft 42 is rotatably arranged on the frame 1 below the defective grain discharge plate 5 and contacts the bottom surface of the defective grain discharge plate 5. The second linkage rod 38 is also connected to the third rotating shaft 44 through the third transmission rod 43. The third rotating shaft 44 is rotatably arranged on the frame 1 on one side below the first guide plate 3. A connecting rod 45 is arranged on the third rotating shaft 44, and a roller is arranged on the connecting rod 45. The roller abuts against the connecting member of the first guide plate 3 and the first sieve 4.

[0040] As can be seen from the above, the eccentric wheel 33 of the present utility model is also driven by the second motor 28 to rotate. The eccentric wheel 33 acts on the fan housing 24 to drive the fan housing 24 to vibrate and then drive the second sieve 7 to vibrate. At the same time, the second linkage rod 38 drives the second transmission rod 41, the second rotating shaft 42, and the defective grain discharge plate 5 to vibrate. The second linkage rod 38 also drives the third transmission rod 43, the third rotating shaft 44, the connecting rod 45, and the roller to vibrate the first guide plate 3 and the first sieve 4. That is to say, the vibration device drives the vibration of the screening device, which is convenient for screening.

[0041] The utility model further obliquely arranges a spring 46 at the bottom of the fan housing 24. One end of the spring 46 abuts against the fan housing 24, and the other end is arranged on the spring seat 47 of the frame 1. The spring 46 has the functions of buffering and resetting, and can also reduce the noise generated by the vibration impact of the fan housing 24 on the frame 1.

[0042] In order to facilitate the movement of the utility model, a roller 48 is arranged at one end of the bottom of the frame 1. Meanwhile, a push handle 49 is arranged on the frame 1 and on the same side as the roller 48.

[0043] The above embodiments are only one of the preferred embodiments of the utility model, and do not limit the implementation scope of the utility model. Therefore, all equivalent changes made according to the shape, structure and principle of the utility model should be covered within the protection scope of the utility model.

Claims

1. A seed cleaning machine, characterized in that: The invention comprises a frame (1), on which a feeding device, a screening device, an air suction device and a vibration device are arranged. The screening device comprises a first guide plate (3), the feeding end of the first guide plate (3) is higher than the discharging end, a first screen (4) is arranged above the first guide plate (3), a bad particle discharging plate (5) is arranged below the first guide plate (3), the discharging end of the first guide plate (3) is arranged corresponding to the feeding end of the bad particle discharging plate (5), a second guide plate (6) is arranged below the bad particle discharging plate (5), the feeding end of the second guide plate (6) is arranged corresponding to the discharging end of the first screen (4), the discharging end is located above the second screen (7), and a fan for blowing good particles out of the second screen (7) is arranged below the second screen (7). The air suction device comprises an air suction port and a debris discharge port (12), and the air suction port is located above the first screen (4).

2. A seed cleaning machine according to claim 1, characterized in that: The air suction device further comprises an air suction pipe (2) and an air suction fan (8); one end of the air suction pipe (2) is an air suction port, and the other end is connected to the air suction fan (8); the air suction fan (8) comprises an air suction fan housing (9) and a fan blade shaft (10) rotatably arranged in the air suction fan housing (9); a fan blade (11) is arranged on the fan blade shaft (10); and a debris discharge port (12) is arranged on the air suction fan housing (9).

3. A seed cleaning machine according to claim 1, characterized in that: A guide plate (14) is arranged above the second screen (7) and at one end close to the outlet, a good grain discharge port (15) is arranged at the outlet end of the second screen (7), and the guide plate (14) is connected to the good grain discharge port (15).

4. A seed cleaning machine according to claim 1, 2 or 3, characterized in that: The feeding device comprises a first feeding hopper (16) and a casing (17). A feeding port and a discharging port are arranged on the casing (17). The first feeding hopper (16) is arranged on the feeding port, and the discharging port is located above the first screen (4). An awning shaft (18) is arranged in the casing (17) between the feeding port and the discharging port. The awning shaft (18) is arranged horizontally, and the awning shaft (18) is driven to rotate by a first motor (19).

5. A seed cleaning machine according to claim 1, 2 or 3, characterized in that: It also includes a conveyor belt (21), a second feed hopper (22) is arranged above one end of the conveyor belt (21), and the other end of the conveyor belt (21) is located above the first feed hopper (16) of the feeding device.

6. A seed cleaning machine according to claim 5, characterized in that: One end of the conveyor belt (21) is arranged on a second feed hopper support (23), and the second feed hopper (22) is erected above one end of the conveyor belt (21).

7. A seed cleaning machine according to claim 2, characterized in that: The fan comprises a fan housing (24) and a fan shaft (25), and a fan blade (26) is arranged on the fan shaft (25).

8. A seed cleaning machine according to claim 7, characterized in that: One end of the fan shaft (10) extends out of the suction fan housing (9) and is rotatably arranged on the frame (1) through a bearing; a first pulley (27) is arranged on the fan shaft (10); a second motor (28) is arranged on the frame (1); a second pulley (29) is arranged on the rotating shaft of the second motor (28); a third pulley (30) is arranged on the fan shaft (25); the first pulley (27) and the second pulley (29) are connected to each other through a first belt (31); and the second pulley (29) and the third pulley (30) are connected to each other through a second belt (32).

9. A seed cleaning machine according to claim 8, characterized in that: The vibration device comprises an eccentric wheel shaft (33) rotatably arranged on the frame (1), an eccentric wheel (34) being arranged on the eccentric wheel shaft (33), the eccentric wheel (34) being in contact with the fan housing (24), driving the second screen (7) to vibrate, a fourth pulley (35) being arranged at one end of the eccentric wheel shaft (33), the fourth pulley (35) being connected to the third pulley (30) by a third belt (36); a first linkage rod (37) and a second linkage rod (38) being arranged to extend transversely through the fan housing (24) at intervals in front and back, the two ends of the first linkage rod (37) and the second linkage rod (38) extending out of the fan housing (24), the two ends of the first linkage rod (37) being connected to the first rotating shaft (24) by a first transmission rod (39) respectively. The first rotating shaft (40) is connected with the frame (1) above the second screen (7), the two ends of the second linkage rod (38) are respectively connected with the second rotating shaft (42) through the second transmission rod (41), the second rotating shaft (42) is rotatably arranged on the frame (1) below the bad particle discharge plate (5) and contacts with the bottom surface of the bad particle discharge plate (5), the second linkage rod (38) is also connected with the third rotating shaft (44) through the third transmission rod (43), the third rotating shaft (44) is rotatably arranged on the frame (1) on one side below the first guide plate (3), a connecting rod (45) is arranged on the third rotating shaft (44), and a roller is arranged on the connecting rod (45), and the roller abuts against the connecting piece of the first guide plate (3) and the first screen (4).

10. A seed cleaning machine according to claim 9, characterized in that: A spring (46) is obliquely arranged at the bottom of the fan housing, one end of the spring (46) abuts against the fan housing (24), and the other end is arranged on a spring seat (47) of the frame (1).

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