Precise seed winnowing classification screening machine

Abstract

The utility model relates to the technical field of seed screening, and discloses a precise seed winnowing grading screening machine which comprises a collecting box and a screen, the left side of a feeding port is communicated with a hollow frame, the left side of the hollow frame is fixedly connected with an air pump, and the top of the hollow frame is rotationally connected with a crank. The bottom end of the crank penetrates through the hollow frame and is fixedly connected with a driving bevel gear, the driven bevel gear is in meshed connection with the driving bevel gear, a cross-shaped fixing plate is fixedly connected to the right side of the interior of the hollow frame, and a plurality of sector plates are fixedly connected to the periphery of the outer side of a movable rod at equal intervals; screens are fixedly connected to the upper side and the lower side of the interior of the collecting box. According to the utility model, the crank is rotated to drive the driving bevel gear to rotate, and at the moment, the fan-shaped plate on the movable rod rotates through the rotation of the movable rod, so that the effect of controlling the speed and the flow rate of airflow is achieved, and therefore, part of seeds are not easy to waste, and the requirements of users can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of seed screening, in particular to a precise seed air separation and grading screening machine. Background Art

[0002] In modern agricultural production, seed quality is very important. High-quality seeds can improve the yield, quality and disease and pest resistance of crops. With the continuous advancement of agricultural technology, growers have higher and higher requirements for seed purity, fullness, uniformity and quality indicators. In order to obtain high-quality seeds, seeds need to be carefully screened and graded.

[0003] At present, a seed screening machine is needed to screen seeds. It vibrates through the screen. When the seed mixture passes through the screen, seeds and impurities larger than the screen hole size will be retained above the screen, while seeds smaller than the screen hole size will fall through the screen and then pass through the secondary screen for more fine screening to obtain purer and more uniform seeds. Therefore, it is widely used.

[0004] The working method of the seed air separation and grading screening machine currently on the market is to pour the seeds into the funnel and separate them through the airflow generated by the fan. The lighter impurities will be blown up by the airflow, while the heavier seeds will fall under the action of gravity, thereby achieving the purpose of air separation and selecting high-quality seeds. However, it is impossible to control the speed and flow of the airflow according to the weight of the seeds, which can easily lead to the waste of some seeds and fail to meet the needs of users. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a precise seed air separation and grading screening machine, which aims to improve the problem in the prior art that the air flow speed cannot be controlled according to the weight of the seeds when in use.

[0006] The air inlet is connected to the air inlet of the collecting box, and the air inlet is connected to the collecting box on the other hand.

[0007] As a further description of the above technical solution:

[0008] The vibration mechanism includes a cavity, a transmission belt and a connecting rod, the cavity is opened on the inner front side of the collection box, the inner front left end of the cavity is fixedly connected to a micro motor, the inner front side of the cavity is rotatably connected to multiple rotating rods, the outer side of the micro motor output end and the outer side of the rotating rod are fixedly connected to pulleys, and the multiple pulleys are connected by the transmission belt, the micro motor output end and the rear end of the rotating rod are fixedly connected to a disc, the rear side of the disc is fixedly connected to a fixed shaft, the rear end of the fixed shaft is rotatably connected to the first rotating shaft, the inner rear side of the cavity is equidistantly connected to multiple fixed frames, the interior of the fixed frame is slidably connected to a movable block, the front side of the movable block is rotatably connected to the second rotating shaft, and the multiple second rotating shafts are respectively connected to the corresponding first rotating shafts through the connecting rod, and the rear side of the movable block is fixedly connected to a knocking rod.

[0009] As a further description of the above technical solution:

[0010] The right side of the feed port is connected to a hollow box, the right side of the hollow box is provided with a box door, and the right side of the box door is fixedly connected to a pull rod.

[0011] As a further description of the above technical solution:

[0012] A collection box is slidably connected to the middle and lower part of the inner side of the collection box, the front side of the collection box passes through the collection box, and handles are fixedly connected to the left and right sides of the front end of the collection box.

[0013] As a further description of the above technical solution:

[0014] The upper and lower ends of the right side of the box door are fixedly connected with hinges, and the box door is rotatably connected to the right side of the hollow box through the hinges.

[0015] As a further description of the above technical solution:

[0016] The right bottom of the feed port is connected to a first discharge port, and the right side of the collecting box is connected to a second discharge port.

[0017] As a further description of the above technical solution:

[0018] The size of each gap on the cross fixing plate matches the size of the corresponding sector plate.

[0019] As a further description of the above technical solution:

[0020] A control panel is fixedly connected to the front end of the hollow frame, and the control panel is electrically connected to the micro motor and the air pump respectively.

[0021] 1. In the utility model, rotating the crank can drive the active bevel gear to rotate, and the driven bevel gear meshing with it also rotates. The rotation of the driven bevel gear can drive the movable rod to rotate. At this time, the fan-shaped plate on the movable rod rotates through the rotation of the movable rod, thereby controlling the speed and flow of the airflow, so that different seeds can be better selected by air, which is not easy to cause waste of seeds and can meet the needs of users.

[0022] 2. In the present invention, when the micro motor is started, the pulley on the outer side of its output end will rotate, and the pulley on the rotating rod will also rotate through the transmission belt, thereby driving the rotating rod to rotate. At this time, the disc will rotate, thereby driving the first rotating shaft to rotate, and the second rotating shaft will also rotate through the connecting rod, thereby driving the movable block to move up and down inside the hollow frame. The knocking rod on the rear side of the movable block will move up and down to knock on the screen, thereby preventing the screen from being blocked by seeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the precise seed winnowing and grading screening machine proposed in the present utility model;

[0024] Figure 2 This is a structural cross-sectional view of the precise seed winnowing and grading screening machine proposed in the utility model;

[0025] Figure 3 for Figure 2 A magnified view of point A in the figure;

[0026] Figure 4 This is a partial structural breakdown diagram of the precise seed winnowing and grading screening machine proposed in the utility model;

[0027] Figure 5 This is a partial structural diagram of the precise seed winnowing and grading screening machine proposed in the present invention;

[0028] Figure 6 This is a partial structural breakdown diagram of the collection box of the precise seed winnowing and grading screening machine proposed in the utility model;

[0029] Figure 7 This is a top view of the local structure of the precise seed air separation and grading screening machine proposed in the utility model.

[0030] Legend:

[0031] 1. Collection box; 2. Vibration mechanism; 201. Cavity; 202. Micro motor; 203. Rotating rod; 204. Pulley; 205. Transmission belt; 206. Disc; 207. Fixed shaft; 208. First rotating shaft; 209. Connecting rod; 210. Second rotating shaft; 211. Movable block; 212. Fixed frame; 213. Knocking rod; 3. Feed port; 4. Hollow frame; 5. Air pump; 6. Inlet pipe; 7. Outlet pipe; 8. Crank; 9. Driving bevel gear; 10. Cross fixing plate; 11. Movable rod; 12. Driven bevel gear; 13. Fan plate; 14. Hollow box; 15. First discharge port; 16. Box door; 17. Hinge; 18. Pull rod; 19. Control panel; 20. Collection box; 21. Handle; 22. Second discharge port; 23. Screen. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0033] Reference Figure 1 、 Figure 3 and Figure 4The utility model provides an embodiment of a precise seed air separation and grading screening machine, comprising a collecting box 1 and a screen 23, characterized in that: a feed port 3 is fixedly connected to the left side of the top of the collecting box 1, a hollow frame 4 is connected to the left side of the feed port 3, an air pump 5 is fixedly connected to the left side of the hollow frame 4, one end of the air pump 5 passes through the hollow frame 4 and is connected to an air inlet pipe 6, the other end of the air pump 5 is connected to an air outlet pipe 7, a crank 8 is rotatably connected to the top of the hollow frame 4, the bottom end of the crank 8 passes through the hollow frame 4 and is fixedly connected to an active bevel gear 9, a cross fixing plate 10 is fixedly connected to the right side of the inside of the hollow frame 4, and the left side of the cross fixing plate 10 The side is rotatably connected to a movable rod 11, the left end of the movable rod 11 is fixedly connected to a driven bevel gear 12, the driven bevel gear 12 is meshed with the driving bevel gear 9, and a plurality of sector plates 13 are fixedly connected to the outer side of the movable rod 11 at equal intervals. The upper and lower sides of the interior of the collecting box 1 are fixedly connected with screens 23, the right bottom of the feed port 3 is connected to the first discharge port 15, and the right side of the collecting box 1 is connected to the second discharge port 22. The size of each gap on the cross fixed plate 10 matches the size of the corresponding sector plate 13. A vibration mechanism 2 is provided inside the collecting box 1 to prevent the screen 23 from being blocked;

[0034] Specifically, by turning the crank 8, the active bevel gear 9 is driven to rotate, and the driven bevel gear 12 engaged with the active bevel gear 9 also rotates, driving the movable rod 11 to rotate. When the movable rod 11 rotates, the fan-shaped plate 13 on the movable rod 11 rotates. At this time, as the fan-shaped plate 13 rotates, the air intake area in the hollow frame 4 is reduced. Through this operation, the flow rate of the airflow can be controlled according to the weight of different seeds, which is less likely to cause some seeds to be wasted and can meet the needs of users.

[0035] Reference Figure 2 、 Figure 5 and Figure 7The vibration mechanism 2 includes a cavity 201, a transmission belt 205 and a connecting rod 209. The cavity 201 is opened on the inner front side of the collection box 1. The left end of the inner front side of the cavity 201 is fixedly connected to a micro motor 202. The inner front side of the cavity 201 is rotatably connected to multiple rotating rods 203. The outer side of the output end of the micro motor 202 and the outer side of the rotating rod 203 are fixedly connected to pulleys 204. The multiple pulleys 204 are connected by a transmission belt 205. The output end of the micro motor 202 and the rear end of the rotating rod 203 are fixed. A disc 206 is connected, a fixed shaft 207 is fixedly connected to the rear side of the disc 206, and a first rotating shaft 208 is rotatably connected to the rear end of the fixed shaft 207. A plurality of fixed frames 212 are equidistantly connected to the rear side of the interior of the cavity 201. A movable block 211 is slidably connected to the interior of the fixed frame 212. The front side of the movable block 211 is rotatably connected to a second rotating shaft 210. The plurality of second rotating shafts 210 are respectively connected to the corresponding first rotating shaft 208 via a connecting rod 209. A knocking rod 213 is fixedly connected to the rear side of the movable block 211.

[0036] Specifically, the micro motor 202 is controlled by the control panel 19. When the micro motor 202 rotates, it drives the rotating rod 203 to rotate, and the rotating rod 203 drives the pulley 204 to rotate. At this time, the transmission belt 205 on the pulley 204 is transmitted by the rotation of the pulley 204. When the rotating rod 203 rotates, the disc 206 also rotates, and the disc 206 drives the fixed shaft 207 to move. The first rotating shaft 208 on the fixed shaft 207 also rotates, and then drives the second rotating shaft 210 connected to the connecting rod 209 to move. At this time, the movable block 211 slides up and down in the fixed frame 212 with the rotation of the second rotating shaft 210, and at the same time drives the knocking rod 213 to move up and down. The knocking rod 213 knocks, making it less likely for the screen 23 to be blocked, thereby speeding up the speed and accuracy of seed screening.

[0037] Reference Figure 1 and Figure 2 The right side of the feed port 3 is connected to a hollow box 14, and a box door 16 is provided on the right side of the hollow box 14. The right side of the box door 16 is fixedly connected to a pull rod 18, and the upper and lower ends of the right side of the box door 16 are fixedly connected to hinges 17. The box door 16 is rotatably connected to the right side of the hollow box 14 through the hinge 17;

[0038] Specifically, the box door 16 can be easily opened by the pull rod 18 to clean the impurities in the hollow box 14.

[0039] Reference Figure 1 、 Figure 2 and Figure 6 The collecting box 20 is slidably connected to the lower middle part of the inner side of the collecting box 1, the front side of the collecting box 20 passes through the collecting box 1, and the left and right sides of the front end of the collecting box 20 are fixedly connected to handles 21;

[0040] Specifically, the collection box 20 can be pulled out through the handle 21 to clean and recycle the debris inside.

[0041] Reference Figure 1 The front end of the hollow frame 4 is fixedly connected with a control panel 19, and the control panel 19 is electrically connected to the micro motor 202 and the air pump 5 respectively;

[0042] Specifically, the operation of the micro motor 202 and the air pump 5 can be controlled through the control panel 19. The model of the micro motor 202 is XD60KTYZ, and the model of the air pump 5 is B-500.

[0043] Working principle: When using the device, first start the air pump 5, and the air pump 5 conveys air into the feed box 3 through the hollow frame 4 to perform preliminary air selection on the seeds. When the wind speed needs to be controlled according to the weight of different seeds, the active bevel gear 9 is driven to rotate by turning the crank 8, and the active bevel gear 9 drives the driven bevel gear 12 to rotate, and at the same time drives the movable rod 11 to rotate, and the rotation of the movable rod 11 drives the fan-shaped plate 13 to rotate. At this time, the air intake area in the hollow frame 4 is reduced, which reduces the wind speed, makes it less likely that seeds and impurities will be blown away together, reduces the waste of seeds, and can meet the needs of users;

[0044] And when the screen 23 needs to be cleaned, the micro motor 202 is started to drive the rotating rod 203 to rotate, and the pulley 204 on the rotating rod 203 also rotates. The pulley 204 drives the transmission belt 205 to move, driving the disc 206 to rotate, and the fixed shaft 207 on the disc 206 also rotates and drives the first rotating shaft 208 to move. At this time, the connecting rod 209 on the first rotating shaft 208 also moves. When the connecting rod 209 moves, it drives the second rotating shaft 210 to move up and down, and the movable block 211 moves together with the second rotating shaft and drives the knocking rod 213 to knock the screen 23. By knocking the screen 23, the screen 23 is not easily blocked, which speeds up the speed and accuracy of seed screening.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A precise seed winnowing and grading screening machine, comprising a collecting box (1) and a screen (23), characterized in that: The left side of the top of the collecting box (1) is fixedly connected to a feed port (3), the left side of the feed port (3) is connected to a hollow frame (4), the left side of the hollow frame (4) is fixedly connected to an air pump (5), one end of the air pump (5) passes through the hollow frame (4) and is connected to an air inlet pipe (6), the other end of the air pump (5) is connected to an air outlet pipe (7), the top of the hollow frame (4) is rotatably connected to a crank (8), the bottom end of the crank (8) passes through the hollow frame (4) and is fixedly connected to a driving bevel gear (9), the right side of the interior of the hollow frame (4) is fixedly connected to A cross fixing plate (10) is rotatably connected to a movable rod (11) on the left side of the cross fixing plate (10), a driven bevel gear (12) is fixedly connected to the left end of the movable rod (11), the driven bevel gear (12) is meshed and connected with the driving bevel gear (9), a plurality of fan-shaped plates (13) are fixedly connected to the outer periphery of the movable rod (11) at equal intervals, a screen (23) is fixedly connected to the upper and lower sides of the interior of the collection box (1), and a vibration mechanism (2) is provided inside the collection box (1), and the vibration mechanism (2) is used to prevent the screen (23) from being blocked.

2. The precise seed winnowing and grading screening machine according to claim 1, characterized in that: The vibration mechanism (2) comprises a cavity (201), a transmission belt (205) and a connecting rod (209); the cavity (201) is opened on the inner front side of the collection box (1); the left end of the inner front side of the cavity (201) is fixedly connected to a micro motor (202); the inner front side of the cavity (201) is rotatably connected to a plurality of rotating rods (203); the outer side of the output end of the micro motor (202) and the outer side of the rotating rod (203) are fixedly connected to pulleys (204); the plurality of pulleys (204) are connected to each other through the transmission belt (205); the output end of the micro motor (202) and the rear end of the rotating rod (203) are fixedly connected. A disc (206) is fixedly connected, a fixed shaft (207) is fixedly connected to the rear side of the disc (206), a rear end of the fixed shaft (207) is rotatably connected to a first rotating shaft (208), a plurality of fixed frames (212) are equidistantly connected to the rear side of the interior of the cavity (201), a movable block (211) is slidably connected to the interior of the fixed frame (212), a front side of the movable block (211) is rotatably connected to a second rotating shaft (210), a plurality of second rotating shafts (210) are respectively connected to the corresponding first rotating shaft (208) through the connecting rod (209), and a knocking rod (213) is fixedly connected to the rear side of the movable block (211).

3. The precise seed winnowing and grading screening machine according to claim 1, characterized in that: The right side of the feed port (3) is connected to a hollow box (14), the right side of the hollow box (14) is provided with a box door (16), and the right side of the box door (16) is fixedly connected to a pull rod (18).

4. The precise seed winnowing and grading screening machine according to claim 1, characterized in that: A collection box (20) is slidably connected to the middle and lower portion of the inner side of the collection box (1), the front side of the collection box (20) passes through the collection box (1), and handles (21) are fixedly connected to the left and right sides of the front end of the collection box (20).

5. The precise seed winnowing and grading screening machine according to claim 3, characterized in that: The upper and lower ends of the right side of the box door (16) are fixedly connected with hinges (17), and the box door (16) is rotatably connected to the right side of the hollow box (14) through the hinges (17).

6. The precise seed winnowing and grading screening machine according to claim 1, characterized in that: The right bottom of the feed port (3) is connected to a first discharge port (15), and the right side of the collecting box (1) is connected to a second discharge port (22).

7. The precise seed winnowing and grading screening machine according to claim 1, characterized in that: The size of each slit on the cross fixing plate (10) matches the size of the corresponding sector plate (13).

8. The precise seed winnowing and grading screening machine according to claim 1, characterized in that: A control panel (19) is fixedly connected to the front end of the hollow frame (4), and the control panel (19) is electrically connected to the micro motor (202) and the air pump (5) respectively.

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