A grain pulverizing device for grain processing

CN224541839UActive Publication Date: 2026-07-24HUBEI YOUMIJIANG ECOLOGICAL AGRI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUBEI YOUMIJIANG ECOLOGICAL AGRI TECH CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing crushing equipment is not convenient for screening grain particles after crushing, resulting in inconsistent particle size.

Method used

A grain crushing device including a crushing box, a screening structure, and a fixed structure was designed. The screening structure is driven to vibrate by a vibrating motor, and the particles are screened by a screen. Suitable and unsuitable particles are discharged through a discharge chute and a slag discharge chute, respectively.

Benefits of technology

It achieves effective screening of crushed grain particles, ensuring uniform particle size, and allows for easy replacement of screen mesh size as needed.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of grain processing, and disclose a kind of grain grinding equipment for grain processing, including main body structure, the main body structure includes and is smashed box, grinding roller, material collecting tank, discharge port and connecting column, two groups of grinding roller are respectively rotationally connected in the two sides inner wall of smashing box by bearing, the connecting column is fixedly connected in the four corners of material collecting tank lower surface.The utility model can discharge the grain particle after being smashed in the inside of smashing box to the upper surface of screen by discharge port, start vibration motor can drive screen structure whole vibration, at this time, grain particle will be vibrated and screened on the upper surface of screen, and the particle of proper size will fall on the upper surface of discharge plate and be discharged outward through discharge tank, and the particle with larger diameter will be discharged outward through slag discharge groove, so that the device can screen the size of particle when using.
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Description

Technical Field

[0001] This utility model relates to the field of grain processing technology, and more specifically, to a grain crushing device for grain processing. Background Technology

[0002] Grains refer to the general term for various plant seeds used in cooking, and can also be broadly referred to as "cereals." Grain crops are rich in nutrients, mainly protein, vitamins, dietary fiber, fat, and starch. In ancient times, "grain" was used for traveling and "food" for living; later, it also generally referred to raw and processed grains such as cereals, beans, and tubers for consumption. The Food and Agriculture Organization of the United Nations (FAO) defines grains specifically as cereals, including wheat, beans, whole grains, and rice. During grain processing, some require grinding, which necessitates the use of grain grinding equipment.

[0003] However, some existing crushing devices have some defects in use. After crushing the grain, some existing devices are not convenient for screening the crushed particles, which may result in grain particles of different sizes. Therefore, this utility model provides a grain crushing device for grain processing to solve the above problems. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a grain crushing equipment for grain processing, which has the advantage of screening the crushed grain particles.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grain crushing device for grain processing, comprising: a main structure, the main structure including a crushing box, crushing rollers, a collection trough, a discharge port and connecting columns, the two sets of crushing rollers being rotatably connected to the inner walls of both sides of the crushing box via bearings, and the connecting columns being fixedly connected to the four corners of the lower surface of the collection trough; The screening structure includes a fixed plate, a connecting cover, a screening box, a discharge plate, a mounting groove, a screen and a vibrating motor. Fixed cylinders are fixedly connected to the four corners of the upper surface of the fixed plate. The connecting column is inserted into the inside of the fixed cylinder. A first spring is installed inside the fixed cylinder, and the upper end of the first spring abuts against the lower end of the connecting column. The vibrating motor is installed on the lower surface of the discharge plate. The fixed structure includes a fixed seat, which is fixedly connected to one side of the outer surface of one end of the screening box. A pull plate is inserted into the inside of one side surface of the fixed seat, and a limit plate is fixedly connected to one end of the pull plate. A second spring is attached to the upper surface of the limit plate.

[0006] As a preferred embodiment of this utility model, a support frame is fixedly connected to the outer surfaces of both sides of the crushing box, and an inlet is connected to the interior of the upper surface of the crushing box.

[0007] As a preferred embodiment of this utility model, a drive motor is installed on the outer surface of one end of the crushing box, and there are two sets of drive motors. The output ends of the two sets of drive motors are respectively fixedly connected to one end of the two sets of crushing rollers.

[0008] As a preferred embodiment of this utility model, the material collection trough is fixedly connected to the lower end of the inner surface of the crushing box, the discharge port is fixedly connected to the lower surface of the material collection trough, and the interior of the discharge port is connected to the interior of the material collection trough and the crushing box.

[0009] As a preferred embodiment of this utility model, the connecting cover is fixedly connected to the upper surface of the fixing plate, the connecting cover is sleeved on the lower end of the outer surface of the crushing box, the screening box is fixedly connected to the lower surface of the fixing plate, and a connecting groove is provided inside the fixing plate, and the position of the connecting groove is perpendicular to the position of the discharge port and the screening box.

[0010] As a preferred technical solution of this utility model, the discharge plate is fixedly connected to the lower surface of the screening box, and a slag discharge plate is fixedly connected to one end of the discharge plate. The discharge trough and the slag discharge trough are respectively opened inside both ends of the screening box. The position of the discharge trough corresponds to the position of the discharge plate, and the position of the slag discharge trough corresponds to the position of the slag discharge plate.

[0011] As a preferred technical solution of this utility model, the inner surface of the screening box is provided with mounting grooves on both sides, and the screen is slidably connected to the inside of the mounting grooves.

[0012] As a preferred embodiment of this utility model, the surface of one side of the limiting plate is attached to one end of the screen, the upper end of the second spring abuts against the upper surface inside the fixing seat, and the lower end of the second spring abuts against the upper surface of the limiting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model allows the crushed grain particles inside the crushing box to be discharged onto the upper surface of the screen through the discharge port. Starting the vibration motor can drive the entire screening structure to vibrate. At this time, the grain particles will be vibrated and screened on the upper surface of the screen. Particles of suitable size will fall onto the upper surface of the discharge plate and be discharged outward through the discharge chute. Particles with larger diameters will be discharged outward through the slag discharge chute. This design enables the device to screen the size of the particles during use.

[0014] 2. This utility model uses the elastic force of the second spring to push the limiting plate downward. When the surface of one side of the limiting plate is in contact with one end of the screen, the position of the screen can be fixed. Pulling the pull plate can drive the limiting plate upward, which can cause the limiting plate to detach from one end of the screen. At this time, the operator can disassemble and replace the screen. This design allows the operator to replace screens with different apertures according to the different particle sizes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a partial exploded view of the structure of this utility model; Figure 4 This is a cross-sectional view of the screening structure of this utility model; Figure 5 This is a partial exploded view of the screening structure of this utility model; Figure 6 This utility model Figure 3 A partial sectional view of the structure at point A in the middle.

[0016] In the diagram: 1. Main structure; 11. Crushing box; 12. Support frame; 13. Feed inlet; 14. Drive motor; 15. Crushing roller; 16. Collection trough; 17. Discharge port; 18. Connecting column; 2. Screening structure; 21. Fixing plate; 22. Fixing cylinder; 23. First spring; 24. Connecting cover; 25. Screening box; 26. Discharge plate; 27. Slag discharge plate; 28. Mounting groove; 29. ​​Screen; 210. Vibrating motor; 3. Fixing structure; 31. Fixing seat; 32. Pull plate; 33. Limiting plate; 34. Second spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 6 As shown, this utility model provides a grain crushing device for grain processing, including a main structure 1. The main structure 1 includes a crushing box 11, crushing rollers 15, a collection trough 16, a discharge port 17 and a connecting column 18. Two sets of crushing rollers 15 are rotatably connected to the inner walls of both sides of the crushing box 11 through bearings, and the connecting column 18 is fixedly connected to the four corners of the lower surface of the collection trough 16. Screening structure 2 includes a fixed plate 21, a connecting cover 24, a screening box 25, a discharge plate 26, a mounting groove 28, a screen 29, and a vibrating motor 210. Fixed cylinders 22 are fixedly connected to the four corners of the upper surface of the fixed plate 21. Connecting columns 18 are inserted into the inside of the fixed cylinders 22. A first spring 23 is provided inside the fixed cylinders 22. The upper end of the first spring 23 abuts against the lower end of the connecting column 18. The vibrating motor 210 is installed on the lower surface of the discharge plate 26. The fixing structure 3 includes a fixing seat 31, which is fixedly connected to one side of the outer surface of one end of the screening box 25. A pull plate 32 is inserted into the inside of one side surface of the fixing seat 31, and a limit plate 33 is fixedly connected to one end of the pull plate 32. A second spring 34 is attached to the upper surface of the limit plate 33.

[0019] The crushing box 11 has a support frame 12 fixedly connected to the outer surface of both sides, and the upper surface of the crushing box 11 has an inlet 13 connected to the inside.

[0020] The two sets of support frames 12 can support the 11. The grain to be crushed can be added into the crushing box 11 through the feed port 13. The lower end of the feed port 13 corresponds to the middle position of the two sets of crushing rollers 15, so that the grain can fall directly between the two sets of crushing rollers 15 after entering the crushing box 11 through the feed port 13.

[0021] Among them, a drive motor 14 is installed on the outer surface of one end of the crushing box 11, and there are two sets of drive motors 14. The output ends of the two sets of drive motors 14 are respectively fixedly connected to one end of the two sets of crushing rollers 15.

[0022] By starting the two sets of drive motors 14, the two sets of crushing rollers 15 can be driven to rotate in opposite directions, so that the grain in the middle can be squeezed and crushed when the two sets of crushing rollers 15 rotate.

[0023] The material collection trough 16 is fixedly connected to the lower end of the inner surface of the crushing box 11, and the discharge port 17 is fixedly connected to the lower surface of the material collection trough 16. The interior of the discharge port 17 is connected to the interior of the material collection trough 16 and the crushing box 11.

[0024] The grain crushed by the two sets of crushing rollers 15 inside the main structure 1 can be guided by the collection trough 16 into the discharge port 17.

[0025] The connecting cover 24 is fixedly connected to the upper surface of the fixing plate 21 and is sleeved on the lower end of the outer surface of the crushing box 11. The screening box 25 is fixedly connected to the lower surface of the fixing plate 21, and the fixing plate 21 has a connecting groove inside, and the position of the connecting groove is perpendicular to the position of the discharge port 17 and the screening box 25.

[0026] The crushed grain can be discharged into the screening box 25 through the discharge port 17 via the fixed plate 21. There is a 20mm gap between the inner surface of the connecting cover 24 and the outer surface of 11. The connecting cover 24 can block the dust generated during the crushing process. The connecting cover 24 is connected to the upper surface of the fixed plate 21 by bolts. When in use, the connecting cover 24 can be removed to clean the upper surface of the fixed plate 21.

[0027] The discharge plate 26 is fixedly connected to the lower surface of the screening box 25, and a slag discharge plate 27 is fixedly connected to one end of the discharge plate 26. The discharge trough and the slag discharge trough are respectively opened inside the two ends of the screening box 25. The position of the discharge trough corresponds to the position of the discharge plate 26, and the position of the slag discharge trough corresponds to the position of the slag discharge plate 27.

[0028] By starting the vibration motor 210, the entire screening structure 2 can be driven to vibrate. The screening structure 2 is suspended below the crushing box 11 through the cooperation of the connecting column 18 and the fixed cylinder 22. When the screening structure 2 vibrates, it will push against the first spring 23 to compress. At this time, the first spring 23 can buffer the vibration to a certain extent through its own elasticity and effectively reduce the vibration of the crushing box 11.

[0029] The screening box 25 has mounting grooves 28 on both sides of its inner surface, and the screen 29 is slidably connected to the inside of the mounting grooves 28.

[0030] The screen 29 can be used to screen grain particles. When the screen 29 vibrates, it can drive the grain to vibrate synchronously. The screen 29 is slightly inclined towards the slag discharge plate 27, so that when it vibrates, it can drive the large particles screened out to move towards the slag discharge plate 27 and finally discharge them out through the slag discharge trough. Particles of appropriate size filtered out will fall onto the upper surface of the discharge plate 26, and as the discharge plate 26 vibrates, the particles will be discharged out through the discharge trough.

[0031] The surface of one side of the limiting plate 33 is attached to one end of the screen 29, the upper end of the second spring 34 abuts against the upper surface inside the fixed seat 31, and the lower end of the second spring 34 abuts against the upper surface of the limiting plate 33.

[0032] When the pull plate 32 is pulled, the limiting plate 33 compresses the second spring 34 and moves upward, disengaging from the end of the screen 29; after the pull plate 32 is released, the second spring 34 resets and pushes the limiting plate 33 to press one end of the screen 29, thereby achieving quick fixing and disassembly.

[0033] The working principle and usage process of this utility model are as follows: First, select a suitable aperture and install it inside the mounting groove 28. Then, fix the position of the screen 29 by the limiting plate 33. Next, add the grain into the crushing box 11 through the feed inlet 13. Then, the two sets of crushing rollers 15 will crush the grain. The crushed grain will enter the screening box 25 through the collection trough 16, the discharge port 17 and the fixing plate 21, and fall onto the upper surface of the screen 29. With the overall vibration of the screening structure 2, particles of appropriate size will fall onto the upper surface of the discharge plate 26 and be discharged outward through the discharge trough. Particles with larger diameters will be discharged outward through the slag discharge trough.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A grain crushing device for grain processing, characterized in that: It includes a main structure (1), and the main structure (1) includes a crushing box (11), crushing rollers (15), an aggregate trough (16), a discharge port (17) and connecting columns (18). The two groups of crushing rollers (15) are respectively rotatably connected to the inner walls on both sides of the crushing box (11) through bearings. The connecting columns (18) are fixedly connected to the four corners of the lower surface of the aggregate trough (16). A screening structure (2), and the screening structure (2) includes a fixing plate (21), a connecting cover (24), a screening box (25), a discharge plate (26), mounting grooves (28), a screen (29) and a vibration motor (210). The four corners of the upper surface of the fixing plate (21) are fixedly connected with fixing cylinders (22). The connecting columns (18) are inserted into the interiors of the fixing cylinders (22). A first spring (23) is arranged inside the fixing cylinders (22), and the upper end of the first spring (23) abuts against the lower end of the connecting columns (18). The vibration motor (210) is installed on the lower surface of the discharge plate (26). A fixing structure (3), and the fixing structure (3) includes a fixing seat (31). The fixing seat (31) is fixedly connected to one side of the outer surface of one end of the screening box (25). A pull plate (32) is inserted into the inner surface of one side of the fixing seat (31). One end of the pull plate (32) is fixedly connected with a limiting plate (33). A second spring (34) is fitted on the upper surface of the limiting plate (33).

2. The grain crushing equipment for grain processing according to claim 1, characterized in that: Support frames (12) are fixedly connected to the outer surfaces on both sides of the crushing box (11). A feed inlet (13) is communicated with the interior of the upper surface of the crushing box (11).

3. A grain crushing device for grain processing according to claim 1, characterized in that: A driving motor (14) is installed on the outer surface of one end of the crushing box (11). There are two groups of driving motors (14), and the output ends of the two groups of driving motors (14) are respectively fixedly connected to one ends of the two groups of crushing rollers (15).

4. A grain crushing device for grain processing according to claim 1, characterized in that: The aggregate trough (16) is fixedly connected to the lower end of the inner surface of the crushing box (11). The discharge port (17) is fixedly connected to the lower surface of the aggregate trough (16). The interior of the discharge port (17) is communicated with the interior of the aggregate trough (16) and the crushing box (11).

5. A grain crushing device for grain processing according to claim 1, characterized in that: The connecting cover (24) is fixedly connected to the upper surface of the fixing plate (21). The connecting cover (24) is sleeved on the lower end of the outer surface of the crushing box (11). The screening box (25) is fixedly connected to the lower surface of the fixing plate (21). A communication groove is formed inside the fixing plate (21), and the position of the communication groove is perpendicular to the positions of the discharge port (17) and the screening box (25).

6. The grain crushing equipment for grain processing according to claim 1, characterized in that: The discharge plate (26) is fixedly connected to the lower surface of the screening box (25). One end of the discharge plate (26) is fixedly connected with a slag discharge plate (27). Discharge grooves and slag discharge grooves are respectively formed inside both ends of the screening box (25). The position of the discharge groove corresponds to the position of the discharge plate (26), and the position of the slag discharge groove corresponds to the position of the slag discharge plate (27).

7. A grain crushing device for grain processing according to claim 1, characterized in that: Mounting grooves (28) are formed inside both sides of the inner surface of the screening box (25). The screen (29) is slidably connected to the interior of the mounting grooves (28).

8. A grain crushing device for grain processing according to claim 1, characterized in that: One side surface of the limiting plate (33) is fitted to one end of the screen mesh (29). The upper end of the second spring (34) abuts against the upper surface inside the fixed seat (31), and the lower end of the second spring (34) abuts against the upper surface of the limiting plate (33).