Dehulling device for grain processing with dust reduction mechanism
By combining the dual action of the crushing roller and the crushing blade with the adjustable aperture of the seepage hole and the fan separation, the problem of low efficiency and poor adaptability of existing grain dehulling devices is solved, achieving efficient and pure grain separation and dust reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GANSU XINGHUO ZHENPIN AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-24
AI Technical Summary
Existing grain dehulling devices have low dehulling efficiency, poor adaptability, and incomplete dehulling. After dehulling, the grain may have outer shells or impurities attached, affecting the quality of subsequent processing.
The device employs the dual action of a crushing roller and crushing blades for dehulling, combined with adjustable aperture screening holes and fan separation, to achieve dual separation and dust reduction, thereby enhancing the versatility and stability of the equipment.
It improves hulling efficiency and quality, ensures grain purity, reduces dust emissions, improves the working environment, and enhances the adaptability and stability of the equipment.
Smart Images
Figure CN224541804U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of grain processing technology, and in particular to a grain hulling device with a dust-reducing mechanism. Background Technology
[0002] Grain processing is a crucial part of agricultural production, and hulling is one of the key steps in grain processing. The purpose of grain hulling is to remove the outer shell of the grain, obtaining pure grains for further processing and consumption. Traditional grain hulling methods mainly include manual hulling, simple mechanical hulling, and modern mechanical hulling. With the advancement of agricultural modernization, mechanical hulling has gradually become the mainstream, but existing hulling devices still have some problems.
[0003] Many existing dehulling devices use only a single crushing or impact method for dehulling, resulting in low dehulling efficiency and poor adaptability to different grains. For example, for some grains with hard outer shells, a single crushing method may not completely remove the husk, leading to incomplete dehulling. Existing devices typically lack secondary processing mechanisms, meaning that some outer shell or impurities may still be attached to the grain after dehulling, affecting the quality of subsequent processing. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a grain hulling device with a dust-reducing mechanism.
[0005] This utility model is achieved by the following technical solution: a grain dehulling device with a dust reduction mechanism, including a dehulling box, a support plate fixedly connected inside the dehulling box, a material seepage hole opened on the surface of the support plate, a plurality of material seepage holes, an electric rotating shaft drivenly connected to the bottom end of the support plate, and a crushing blade fixedly connected to the surface of the electric rotating shaft, a plurality of crushing blades.
[0006] Through the above technical solution, the support plate provides a stable support platform for the grains, and the feed inlet is screened according to the size of the grains, allowing the dehulled grains to pass through smoothly, initially separating the grains from larger husks and slag, which facilitates subsequent crushing and separation operations. Changing the aperture according to the size of the grains enhances the versatility and adaptability of the device, enabling it to handle different types and sizes of grains. The electric rotating shaft drives the crushing blades to rotate, performing a second separation on the grains falling through the feed inlet, further removing the outer shell and impurities, making the grains purer and improving the dehulling quality. Through the rotation of the crushing blades, the contact area and collision frequency between the grains and the crushing blades are increased, further refining the grains and improving the dehulling efficiency.
[0007] As a further improvement to the above solution, the bottom of the shelling box is fixedly connected with four connecting columns, and the bottom of each of the four connecting columns is fixedly connected with an anti-slip pad.
[0008] Through the above technical solution, the connecting column fixes the shelling box to the ground, and the anti-slip pad provides good anti-slip performance to prevent the device from shaking or sliding during operation, ensuring stable operation of the device, improving work efficiency and safety. The anti-slip pad can distribute the weight of the device, reduce local pressure on the ground, and protect the ground from damage.
[0009] As a further improvement to the above solution, the front end of the shelling box is hinged to the left end of the box door, a handle is fixedly connected to the front end of the box door, a feeding hopper is fixedly connected to the top of the shelling box, and a feeding valve is drivenly connected to the front end of the feeding hopper.
[0010] The above technical solution allows for easy opening and closing of the hulling chamber door, facilitating grain loading and unloading as well as maintenance and cleaning of internal parts. The handle design makes it easy for operators to open and close the door, enhancing ease of operation. The feed hopper provides a convenient feeding channel for the grain, and the feed valve controls the feed rate and speed, ensuring even grain entry into the hulling chamber and preventing overfeeding or underfeeding from affecting the hulling effect.
[0011] As a further improvement to the above solution, a servo motor is fixedly connected to the left end of the shelling box, and a telescopic rod is provided inside the shelling box. The output end of the servo motor is connected to the left end of the telescopic rod through the inside of the shelling box. A connecting plate is fixedly connected to the right end of the telescopic rod, and a connecting shaft is fixedly connected to the inner wall of the connecting plate. A rolling roller is connected to the surface of the connecting shaft, and the surface of the rolling roller contacts one top end of the support plate.
[0012] Through the above technical solution, the servo motor drives the connecting plate to move left and right through the telescopic rod, thereby causing the crushing roller on the connecting shaft to move on the support plate to crush and dehull the grain. It is a key component for grain dehulling. The servo motor can precisely control the moving speed and stroke of the telescopic rod, thereby achieving precise control of the crushing roller and ensuring the consistency and stability of the dehulling effect.
[0013] As a further improvement to the above solution, the bottom end of the electric rotating shaft is connected to a second support plate, which is fixedly connected inside the shelling box. The surface of the second support plate is provided with a second material seepage hole, and there are several second material seepage holes.
[0014] Through the above technical solution, the support plate 2 provides a temporary storage and transition platform for grains and dregs, and the seepage hole 2 further screens the grains and dregs, so that the grains and dregs can be separated smoothly and fall separately, providing better conditions for subsequent separation operations. Similar to the support plate 1, the aperture of the seepage hole 2 can also be changed according to the size of the grains, further enhancing the adaptability of the device.
[0015] As a further improvement to the above solution, the bottom end of the second support plate is provided with an inclined plate, and there are two inclined plates, which are respectively fixedly connected to the left and right ends of the inner wall of the shelling box.
[0016] With the above technical solution, the inclined plates are set at the left and right ends of the inner wall of the hulling box, providing different sliding paths for the grains and the debris, so that the grains fall naturally to the left end of the inclined plate and the debris falls to the right end of the inclined plate, thus achieving the initial separation of the grains and the debris.
[0017] As a further improvement to the above solution, a fan is fixedly connected to the left end of the inner wall of the hulling box, and several fans are provided. An inclined block is provided at the bottom end of the two inclined plates, and the bottom end of the inclined block is fixedly connected to the bottom end of the inner wall of the hulling box. A grain discharge port is opened at the left end of the hulling box, and a slag discharge port is opened at the right end of the hulling box.
[0018] With the above technical solution, after the fan is started, the blown air separates the crushed grains from the grains, causing the crushed grains to fall to the right end of the inclined block and slide to the crushed grain discharge port, thereby achieving effective separation of grains and crushed grains, while reducing dust and playing a dust suppression role. The inclined block provides different discharge channels for grains and crushed grains. Grains are discharged from the grain discharge port, and crushed grains are discharged from the crushed grain discharge port, ultimately achieving complete separation and collection of grains and crushed grains, which facilitates subsequent processing and treatment.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0020] This invention utilizes the dual action of the crushing roller and the crushing blade to effectively dehull and separate grains, improving dehulling efficiency and quality. The fan blows out the crushed grains, preventing them from mixing with the grains and reducing dust, thus improving the working environment.
[0021] This invention enhances the versatility and adaptability of the device by allowing the diameters of the first and second infiltration holes to be changed according to the size of the grains. The device has a compact overall structure and achieves the functions of hulling and separation through simple mechanical transmission. The door and handle facilitate feeding and cleaning. The design of the connecting column and anti-slip pad increases the stability of the device and prevents shaking or sliding during operation. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0023] Figure 2 This is a schematic diagram of the left end structure of this utility model;
[0024] Figure 3 This is a schematic diagram of the bottom structure of this utility model;
[0025] Figure 4This is a schematic diagram of the internal structure of this utility model;
[0026] Figure 5 This is a cross-sectional structural diagram of the present invention.
[0027] Explanation of key symbols:
[0028] 1. Shelling box; 2. Connecting column; 3. Anti-slip mat; 4. Box door; 5. Handle; 6. Feed hopper; 7. Feed valve; 8. Servo motor; 9. Telescopic rod; 10. Connecting plate; 11. Connecting shaft; 12. Crushing roller; 13. Support plate one; 14. Seepage hole one; 15. Electric rotating shaft; 16. Crushing blade; 17. Support plate two; 18. Seepage hole two; 19. Inclined plate; 20. Fan; 21. Inclined block; 22. Grain outlet; 23. Crusher outlet. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0030] Example:
[0031] Please combine Figure 1-5 The grain hulling device with a dust suppression mechanism in this embodiment includes a hulling box 1. A support plate 13 is fixedly connected inside the hulling box 1. A material seepage hole 14 is opened on the surface of the support plate 13. A plurality of material seepage holes 14 are provided. An electric rotating shaft 15 is drivenly connected to the bottom end of the support plate 13. A crushing blade 16 is fixedly connected to the surface of the electric rotating shaft 15. A plurality of crushing blades 16 are provided.
[0032] The bottom of the shelling box 1 is fixedly connected to a connecting post 2, and there are four connecting posts 2. The bottom of the four connecting posts 2 is fixedly connected to an anti-slip pad 3, and there are four anti-slip pads 3.
[0033] The front end of the shelling box 1 is hinged to the left end of the box door 4. A handle 5 is fixedly connected to the front end of the box door 4. A feed hopper 6 is fixedly connected to the top of the shelling box 1. A feed valve 7 is driven to the front end of the feed hopper 6.
[0034] A servo motor 8 is fixedly connected to the left end of the shelling box 1. A telescopic rod 9 is installed inside the shelling box 1. The output end of the servo motor 8 is connected to the left end of the telescopic rod 9 through the inside of the shelling box 1. A connecting plate 10 is fixedly connected to the right end of the telescopic rod 9. A connecting shaft 11 is fixedly connected to the inner wall of the connecting plate 10. A rolling roller 12 is connected to the surface of the connecting shaft 11. The surface of the rolling roller 12 is in contact with the top of the support plate 13.
[0035] The bottom end of the electric rotating shaft 15 is connected to a support plate 2 17, which is fixedly connected inside the shelling box 1. The surface of the support plate 2 17 is provided with a material seepage hole 2 18, and there are several material seepage holes 2 18.
[0036] The bottom end of the support plate 17 is provided with an inclined plate 19. There are two inclined plates 19, which are fixedly connected to the left and right ends of the inner wall of the shelling box 1, respectively.
[0037] A fan 20 is fixedly connected to the left end of the inner wall of the hulling box 1. Several fans 20 are provided. Two inclined plates 19 are provided with inclined blocks 21 at their bottom ends. The bottom ends of the inclined blocks 21 are fixedly connected to the bottom end of the inner wall of the hulling box 1. A grain discharge port 22 is opened at the left end of the hulling box 1, and a slag discharge port 23 is opened at the right end of the hulling box 1.
[0038] The implementation principle of the grain hulling device with a dust suppression mechanism in this embodiment is as follows: Grain enters the hulling box 1 from the feed hopper 6 and falls to the top of the support plate 13. The servo motor 8 is started, and the connecting plate 10 moves left and right through the telescopic rod 9, thereby causing the crushing roller 12 to move on the support plate 13 to crush and hull the grain. The crushed grain falls into the crushing area through the seepage hole 14 on the support plate 13. During the falling process, the electric rotating shaft 15 drives the crushing blade 16 to rotate, performing a second separation of the grain to further remove the outer shell and impurities. The crushed grain and debris fall to the top of the support plate 17 and then fall through the seepage hole 18. At this time, the fan 20 starts. Due to the different weights of the grains and the dregs, the grains naturally fall to the left end of the inclined block 21 and slide to the grain outlet 22; while the dregs are carried by the wind blown by the fan 20 to the right end of the inclined block 21 and slide to the dregs outlet 23. The grains are discharged from the grain outlet 22 and the dregs are discharged from the dregs outlet 23, thus achieving effective separation of the grains and dregs.
[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A grain hulling device with a dust-reducing mechanism, characterized in that, The device includes a shelling box (1), inside which a support plate (13) is fixedly connected. The surface of the support plate (13) is provided with a material seepage hole (14), and there are several material seepage holes (14). The bottom end of the support plate (13) is connected to an electric rotating shaft (15), and the surface of the electric rotating shaft (15) is fixedly connected to a crushing blade (16), and there are several crushing blades (16). The left end of the shelling box (1) is fixedly connected to a servo motor (8), and the shelling box (1) is provided with a telescopic rod (9). The output end of the right end of the servo motor (8) is connected to the left end of the telescopic rod (9) through the shelling box (1). The right end of the telescopic rod (9) is fixedly connected to a connecting plate (10), and the inner wall of the connecting plate (10) is fixedly connected to a connecting shaft (11). The surface of the connecting shaft (11) is connected to a rolling roller (12), and the surface of the rolling roller (12) is in contact with the top end of the support plate (13).
2. The grain hulling device with a dust-reducing mechanism as described in claim 1, characterized in that: The bottom of the shelling box (1) is fixedly connected to a connecting column (2), and four connecting columns (2) are provided. The bottom of the four connecting columns (2) is fixedly connected to an anti-slip pad (3), and four anti-slip pads (3) are provided.
3. The grain hulling device with a dust-reducing mechanism as described in claim 1, characterized in that: The front end of the shelling box (1) is hinged to the left end of the box door (4). A handle (5) is fixedly connected to the front end of the box door (4). A feeding hopper (6) is fixedly connected to the top of the shelling box (1). A feeding valve (7) is drivenly connected to the front end of the feeding hopper (6).
4. The grain hulling device with a dust-reducing mechanism as described in claim 1, characterized in that: The electric rotating shaft (15) is connected to a support plate (17) at its bottom end. The support plate (17) is fixedly connected inside the shelling box (1). The surface of the support plate (17) is provided with a material seepage hole (18), and there are several material seepage holes (18).
5. The grain hulling device with a dust-reducing mechanism as described in claim 4, characterized in that: The bottom end of the support plate 2 (17) is provided with an inclined plate (19). There are two inclined plates (19), which are fixedly connected to the left and right ends of the inner wall of the shelling box (1).
6. The grain hulling device with a dust-reducing mechanism as described in claim 5, characterized in that: A fan (20) is fixedly connected to the left end of the inner wall of the hulling box (1). Several fans (20) are provided. An inclined block (21) is provided at the bottom end of the two inclined plates (19). The bottom end of the inclined block (21) is fixedly connected to the bottom end of the inner wall of the hulling box (1). A grain outlet (22) is opened at the left end of the hulling box (1), and a slag outlet (23) is opened at the right end of the hulling box (1).