Grain preliminary cleaning machine

Abstract

The utility model discloses a grain preliminary cleaning machine which comprises a vertical mounting frame, a cleaning box, an electric control box, an air compressor, an air storage tank and a feeding hole, wherein the cleaning box, the electric control box and the air compressor are arranged on the vertical mounting frame; the air storage tank is arranged on the cleaning box or the vertical mounting frame and is connected with the air compressor through a pipeline; the rear upper cavity, the rear lower cavity, the middle cavity and the front cavity are arranged in the cleaning box, the comb plate is in shaft connection with the upper portion of the rear upper cavity and obliquely extends to the upper portion of the middle cavity and the upper portion of the front cavity, the flow guide plate is arranged on the top of the inner wall of the cleaning box and guides grain feeding of a feeding port to the comb plate, and the exhaust fans are arranged in the rear upper cavity. The plurality of filter elements are arranged in the rear lower cavity and are communicated with an air outlet of the exhaust fan, the dust receiving hopper is arranged at the bottom of the rear lower cavity, the discharging opening is formed in the bottom of the middle cavity, the impurity distributing opening is formed in the lower part of the front cavity, and the filter element cleaning air pipe is connected with the air storage tank and faces the center of the upper part of the filter elements.

Description

Technical Field

[0001] The utility model relates to the technical field of primary grain cleaning, in particular to a primary grain cleaning machine. Background Art

[0002] The primary grain cleaning machine of this technology is mainly used for the initial cleaning of corn, wheat, rice, soybeans and other grains. Since the grains contain straw, shells and other debris, they need to be reliably cleaned. At present, the primary cleaning equipment of grains in the prior art is relatively complicated. For example, the Chinese utility model with "Patent Publication No.: CN206392432U, Name: Compound Grain Cleaning Machine" includes a primary vertical air separation dust collector, a secondary vertical air separation dust collector, a primary vibration cleaning screen, a primary specific gravity air separation machine, a secondary specific gravity air separation machine and a secondary vibration cleaning screen. In this technology, the grain entering the primary vertical air separation dust collector has been initially cleaned and is free of straw, shells and other debris.

[0003] Therefore, it is urgent to propose a grain primary cleaning machine with simple structure and reliable removal of debris. Utility Model Content

[0004] In view of the above problems, the purpose of the present invention is to provide a grain primary cleaning machine. The technical solution adopted by the present invention is as follows:

[0005] A primary grain cleaner comprises a vertical mounting frame, a cleaning box, an electric control box and an air compressor arranged on the vertical mounting frame, an air storage tank arranged on the cleaning box or the vertical mounting frame and connected to the air compressor by a pipeline, a feed port arranged on the top of the cleaning box, a rear upper chamber, a rear lower chamber, a middle chamber and a front chamber arranged in the cleaning box, a combing plate axially connected to the upper part of the rear upper chamber and obliquely extending to the upper part of the middle chamber and the front chamber, a guide plate arranged on the top of the inner wall of the cleaning box and guiding the grain feed from the feed port to the combing plate, a plurality of exhaust fans arranged in the rear upper chamber, a plurality of filter elements arranged in the rear lower chamber and connected to the air outlet of the exhaust fans, a dust collecting hopper arranged at the bottom of the rear lower chamber, a feed port arranged at the bottom of the middle chamber, a sundries distributing port arranged at the lower part of the front chamber, and a filter element cleaning air pipe connected to the air storage tank and facing the upper center of the filter element;

[0006] The rear upper chamber is arranged at the top of the rear lower chamber, and the middle chamber is placed at the lower part of the feed port; the rear upper chamber is connected with the middle chamber and the front chamber; an electromagnetic valve is arranged between the filter element cleaning air pipe and the air storage tank; the air compressor, exhaust fan and electromagnetic valve are electrically connected to the electric control box.

[0007] Furthermore, a dust exhaust pipe is provided at the bottom of the dust collecting hopper; a spiral rod is provided in the dust exhaust pipe; a motor reducer assembly is provided at one end of the dust exhaust pipe, and a dust exhaust cover plate is provided at the other end; the motor reducer assembly is transmission-connected to the spiral rod.

[0008] Furthermore, a partition is provided between the middle cavity and the front cavity; and the comb plate is placed on the upper part of the partition.

[0009] Furthermore, a material dividing guide plate in an eight-shaped shape is arranged in the front cavity; the material dividing guide plate is fixed on the partition plate; and the lower part of the material dividing guide plate is connected to the debris dividing port.

[0010] Furthermore, a material discharge door is provided on the material discharge port.

[0011] Furthermore, a comb plate angle adjustment screw is provided on the rear upper cavity; the comb plate angle adjustment screw is placed on the back of the comb plate.

[0012] Furthermore, the combing plate includes a combing plate body, a plurality of strip grooves provided on the combing plate body, a rotating shaft rod arranged at the upper end of the back of the combing plate body, and a reinforcing support bar arranged on the back of the combing plate body and placed between adjacent strip grooves; the rotating shaft rod is axially connected to the upper part of the rear upper cavity.

[0013] Furthermore, a filter element replacement cabinet door connected to the rear lower cavity is provided on the side of the cleaning box; an observation window connected to the middle cavity is provided on the side of the cleaning box; and a front inspection port connected to the front cavity is provided on the cleaning box.

[0014] Furthermore, a plurality of universal wheels are provided at the bottom of the vertical mounting frame.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] (1) The utility model provides a comb plate to screen the grain feed from the feed port, so that the grain falls into the middle cavity and the debris enters the front cavity. In addition, an exhaust fan is provided in the rear upper cavity, and a filter element is provided in the rear lower cavity to achieve dust removal of the grain.

[0017] (2) The utility model provides a comb plate angle adjustment screw to adjust the inclination angle of the comb plate, which is convenient for grain and debris screening and adjustment. The adjustment is simple and reliable, ensuring screening reliability.

[0018] (3) The utility model is convenient for regular cleaning of the filter element by arranging an air compressor, an air storage tank, and a filter element cleaning air pipe. In addition, the utility model is convenient for removing and cleaning dust by arranging a dust collecting hopper, a dust exhaust pipe, a spiral rod, and a motor reducer assembly.

[0019] (4) The utility model provides a reinforcing support strip on the back of the comb plate body to ensure its supporting strength.

[0020] In summary, the utility model has the advantages of simple structure and reliable removal of debris, and has high practical value and promotion value in the field of grain primary cleaning technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope of protection. For those skilled in the art, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic structural diagram of the utility model from a first angle.

[0023] Figure 2 It is a structural schematic diagram of the utility model from a second angle.

[0024] Figure 3 It is a schematic diagram of the internal section of the utility model.

[0025] Figure 4 This is a first angle schematic diagram of the present invention after the outer shell of the cleaning box is removed.

[0026] Figure 5 This is a second angle schematic diagram of the present invention after the outer shell of the cleaning box is removed.

[0027] Figure 6 This is a third angle schematic diagram of the present invention after the outer shell of the cleaning box is removed.

[0028] Figure 7 It is a structural schematic diagram of the combing plate in the utility model.

[0029] In the above drawings, the component names corresponding to the reference numerals are as follows:

[0030] 1. Vertical mounting frame; 2. Universal wheel; 3. Cleaning box; 4. Feed inlet; 5. Filter element replacement cabinet door; 6. Observation window; 7. Front inspection port; 8. Air compressor; 9. Gas storage tank; 10. Dust exhaust pipe; 11. Dust exhaust cover; 12. Guide plate; 13. Comb plate angle adjustment screw; 14. Comb plate; 15. Rear upper chamber; 16. Exhaust fan; 17. Filter element cleaning air pipe; 18. Rear lower chamber; 19. Filter element; 20. Dust collecting hopper; 21. Middle chamber; 22. Front chamber; 23. Partition; 24. Feeding port; 25. Feeding door; 26. Material distribution guide plate; 27. Debris distribution port; 28. Screw rod; 29. ​​Motor reducer assembly; 30. Electric control box; 141. Comb plate body; 142. Strip groove; 143. Rotating shaft rod; 144. Strengthening support strip. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of this application clearer, the utility model is further described below in conjunction with the accompanying drawings and embodiments, and the implementation methods of this utility model include but are not limited to the following embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0032] In this embodiment, the term "and / or" is merely a term used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0033] The terms "first" and "second" in the description and claims of this embodiment are used to distinguish different objects rather than to describe a specific order of objects. For example, a first target object and a second target object are used to distinguish different target objects rather than to describe a specific order of target objects.

[0034] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0035] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "multiple" refers to two or more than two. For example, multiple processing units refer to two or more processing units; multiple systems refer to two or more systems.

[0036] like Figures 1 to 7As shown, the present embodiment provides a grain primary cleaner, which includes a vertical mounting frame 1, a plurality of universal wheels 2 arranged at the bottom of the vertical mounting frame 1, a cleaning box 3, an electric control box 30 and an air compressor 8 arranged on the vertical mounting frame 1, an air storage tank 9 arranged on the cleaning box 3 or the vertical mounting frame 1 and connected to the air compressor 8 by a pipeline, a feed port 4 arranged at the top of the cleaning box 3, a rear upper chamber 15, a rear lower chamber 18, a middle chamber 21 and a front chamber 22 arranged in the cleaning box 3, a comb plate 14 axially connected to the upper part of the rear upper chamber 15 and obliquely extending to the upper part of the middle chamber 21 and the front chamber 22, a guide plate 12 arranged at the top of the inner wall of the cleaning box 3 and guiding the grain feed from the feed port 4 to the comb plate 14, and a guide plate 12 arranged in the rear upper chamber 15. Several exhaust fans 16, several filter elements 19 arranged in the rear lower chamber 18 and connected with the air outlet of the exhaust fans 16, a dust collecting hopper 20 arranged at the bottom of the rear lower chamber 18, a material discharge port 24 arranged at the bottom of the middle chamber 21, a material discharge door 25 arranged on the material discharge port 24, a debris separation port 27 arranged at the lower part of the front chamber 22, a filter element cleaning air pipe 17 connected to the air storage tank 9 and facing the upper center of the filter element 19, a solenoid valve arranged between the filter element cleaning air pipe 17 and the air storage tank 9, a dust exhaust pipe 10 arranged at the bottom of the dust collecting hopper 20, a spiral rod 28 arranged in the dust exhaust pipe 10, a motor reducer assembly 29 arranged at one end of the dust exhaust pipe 10, and a dust exhaust cover plate 11 arranged at the other end of the dust exhaust pipe 10. Among them, the motor reducer assembly 29 is in transmission connection with the spiral rod 28. The air compressor 8 , the exhaust fan 16 , the motor reducer assembly 29 and the solenoid valve are electrically connected to the electric control box 30 .

[0037] In this embodiment, the rear upper chamber 15 is arranged at the top of the rear lower chamber 18, and the rear upper chamber 15 is connected with the middle chamber 21 and the front chamber 22. A partition 23 is arranged between the middle chamber 21 and the front chamber 22, and the comb plate 14 is placed on the upper part of the partition 23. In this embodiment, in order to adjust the inclination angle of the comb plate 14, a comb plate angle adjustment screw 13 is arranged on the rear upper chamber 15, and the comb plate angle adjustment screw 13 is placed on the back of the comb plate 14. In this embodiment, the comb plate angle adjustment screw 13 is used to change the equivalent distance that the grain stays in the horizontal direction of the comb plate 14, that is, the comb plate angle adjustment screw 13 is screwed into the direction of the comb plate 14, so that the lower part of the comb plate 14 is tilted upward, so that the equivalent length of the comb plate 14 in the horizontal direction is increased, and the time that the grain stays in the comb plate 14 is increased.

[0038] In this embodiment, a material distribution guide plate 26 in an eight-shaped shape is provided in the front cavity 22, and the material distribution guide plate 26 is fixed on the partition plate 23. The lower part of the material distribution guide plate 26 is connected to the two debris distribution openings 27 in a one-to-one correspondence.

[0039] In this embodiment, the comb plate 14 includes a comb plate body 141, a plurality of strip grooves 142 provided on the comb plate body 141, a rotating shaft rod 143 provided at the upper end of the back of the comb plate body 141, and a reinforcing support strip 144 provided at the back of the comb plate body 141 and disposed between adjacent strip grooves 142. The rotating shaft rod 143 is connected to the upper axis of the rear upper chamber 15. When in use, grain enters from the feed port 4 and is guided to the comb plate 14 by the guide plate 12, the grain leaks into the middle chamber 21 from the strip grooves 142, and the debris falls into the front chamber 22 along the comb plate body 141. During the cleaning process, the dust is sucked away by the exhaust fan 16 and attached to the filter element 19. When the filter element needs to be cleaned, the solenoid valve is opened and compressed air is introduced to flush the dust down and drop it into the dust collecting hopper 20, and then the spiral rod 28 is used to drive the dust to be discharged.

[0040] In this embodiment, a filter element replacement cabinet door 5 communicating with the rear lower chamber 18 is provided on the side of the cleaning box 3 to facilitate the replacement of the filter element. In addition, an observation window 6 communicating with the middle chamber 21 is provided on the side of the cleaning box 3, and a front inspection port 7 communicating with the front chamber 22 is provided on the cleaning box 3 to facilitate observation and maintenance.

[0041] The above embodiments are only preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any changes that adopt the design principles of the present utility model and are made through non-creative labor on this basis should fall within the protection scope of the present utility model.

Claims

1. A grain primary cleaning machine, characterized in that: The invention comprises a vertical mounting frame (1), a cleaning box (3), an electric control box (30) and an air compressor (8) arranged on the vertical mounting frame (1), an air storage tank (9) arranged on the cleaning box (3) or the vertical mounting frame (1) and connected to the air compressor (8) by a pipeline, a feed port (4) arranged at the top of the cleaning box (3), a rear upper chamber (15), a rear lower chamber (18), a middle chamber (21) and a front chamber (22) arranged in the cleaning box (3), a combing plate (14) axially connected to the upper part of the rear upper chamber (15) and obliquely extending to the upper part of the middle chamber (21) and the front chamber (22), and a gas storage tank (9) arranged on the cleaning box (3). (3) and a guide plate (12) for guiding the grain feed from the feed port (4) to the comb plate (14); a plurality of exhaust fans (16) arranged in the rear upper chamber (15); a plurality of filter elements (19) arranged in the rear lower chamber (18) and connected to the air outlet of the exhaust fans (16); a dust collecting hopper (20) arranged at the bottom of the rear lower chamber (18); a feed outlet (24) arranged at the bottom of the middle chamber (21); a debris dispensing port (27) arranged at the bottom of the front chamber (22); and a filter element cleaning air pipe (17) connected to the air storage tank (9) and facing the upper center of the filter element (19); The rear upper chamber (15) is arranged at the top of the rear lower chamber (18), and the middle chamber (21) is placed at the bottom of the feed port (4); the rear upper chamber (15) is connected with the middle chamber (21) and the front chamber (22); an electromagnetic valve is arranged between the filter element cleaning air pipe (17) and the air storage tank (9); and the air compressor (8), the exhaust fan (16) and the electromagnetic valve are electrically connected to the electric control box (30).

2. A grain primary cleaner according to claim 1, characterized in that: A dust exhaust pipe (10) is arranged at the bottom of the dust collecting hopper (20); a spiral rod (28) is arranged in the dust exhaust pipe (10); a motor reducer assembly (29) is arranged at one end of the dust exhaust pipe (10), and a dust exhaust cover plate (11) is arranged at the other end; the motor reducer assembly (29) is drivingly connected to the spiral rod (28).

3. A grain primary cleaner according to claim 1, characterized in that: A partition plate (23) is arranged between the middle cavity (21) and the front cavity (22); the comb plate (14) is placed on the upper part of the partition plate (23).

4. A grain primary cleaner according to claim 3, characterized in that: A material distribution guide plate (26) in an eight-shaped shape is arranged in the front cavity (22); the material distribution guide plate (26) is fixed on the partition plate (23); and the lower part of the material distribution guide plate (26) is connected to the debris distribution port (27).

5. A grain primary cleaner according to claim 1, characterized in that: The discharge port (24) is provided with a discharge door (25).

6. A grain primary cleaner according to any one of claims 1 to 5, characterized in that: A comb plate angle adjustment screw rod (13) is arranged on the rear upper cavity (15); the comb plate angle adjustment screw rod (13) is placed on the back of the comb plate (14).

7. A grain primary cleaner according to any one of claims 1 to 5, characterized in that: The combing plate (14) comprises a combing plate body (141), a plurality of strip grooves (142) provided on the combing plate body (141), a rotating shaft rod (143) arranged at the upper end of the back of the combing plate body (141), and a reinforcing support strip (144) arranged at the back of the combing plate body (141) and placed between adjacent strip grooves (142); the rotating shaft rod (143) is axially connected to the upper part of the rear upper cavity (15).

8. A grain primary cleaner according to claim 1, characterized in that: The side of the cleaning box (3) is provided with a filter element replacement cabinet door (5) communicating with the rear lower chamber (18); the side of the cleaning box (3) is provided with an observation window (6) communicating with the middle chamber (21); and the cleaning box (3) is provided with a front inspection port (7) communicating with the front chamber (22).

9. A grain primary cleaner according to claim 1, characterized in that: A plurality of universal wheels (2) are arranged at the bottom of the vertical mounting frame (1).

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