A fresh corn shelling device

Abstract

This utility model relates to the technical field of agricultural product processing equipment, and discloses a fresh corn threshing device, including a feeding port and a box body. The outer wall of the feeding port is fixedly connected to the outer right wall of the box body. A handle is fixedly connected to the upper right side of the box body, and a base is fixedly connected to the bottom of the box body. A roller is rotatably connected to the right side of the base. A separating cylinder is fixedly connected to the inner left wall of the box body, and a pull-out plate is slidably connected to the left side of the box body. A discharge port is fixedly connected to the lower left side of the box body. A motor is installed inside the box body, and a rotating rod is fixedly connected to the rotating end of the motor. An adjusting component is provided on the outer wall of the rotating rod, and a first sprocket is fixedly connected to the rotating end of the motor. In this utility model, the elastic component and the movable plate work together to automatically adapt to fresh corn of different diameters, improving the applicability and convenience. The motor-driven eccentric structure causes the filter plate to vibrate regularly, efficiently separating corn kernels and impurities, reducing labor costs and improving processing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product processing equipment technology, and in particular to a fresh corn threshing device. Background Technology

[0002] With the optimization of agricultural planting structure and the continuous growth in demand for fresh corn, the scale of the fresh corn industry is constantly expanding. The processing efficiency from field harvesting to market circulation has become a key link affecting the industry's profitability. Unlike traditional kernel corn, fresh corn ears need to be threshed while still tender, and the integrity and cleanliness of the kernels are highly important. As the core equipment in the fresh corn processing flow, the adaptability, threshing efficiency, and product quality of the threshing device directly affect the smoothness of subsequent processing steps and the product's market competitiveness. Therefore, the market demand for efficient and stable fresh corn threshing devices is becoming increasingly urgent.

[0003] In the current field of fresh corn threshing and processing, most existing threshing devices use a fixed-spacing peeling structure to thresh corn ears. In practical applications, due to the diverse varieties of fresh corn and the natural differences in ear diameter, the fixed-spacing peeling structure is difficult to adapt to ears of different sizes. When processing larger ears, insufficient spacing of the peeling structure can cause ear jamming, requiring manual shutdown for cleaning and affecting processing continuity. When processing smaller ears, insufficient contact between the peeling structure and the ear surface can lead to incomplete threshing, increasing subsequent rework. Overall, the applicable scope is narrow, and operational convenience needs improvement. Furthermore, although some existing threshing devices are equipped with material screening structures, these structures often use static filtration. Impurities such as corn silk and broken corn cobs produced after threshing easily mix with the corn kernels and accumulate on the surface of the filter structure. This not only makes efficient separation difficult but also leads to poor kernel discharge, resulting in material residue and waste. Additional manual sorting of impurities is required afterward, increasing labor costs. Overall, the processing efficiency cannot meet the needs of large-scale production.

[0004] In response to this technical problem, this application proposes a fresh corn threshing device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fresh corn threshing device. This device uses elastic components and movable plates to automatically adapt to fresh corn of different diameters, thereby improving its applicability and convenience. The motor-driven eccentric structure causes the filter plate to vibrate regularly, efficiently separating corn kernels from impurities, reducing labor costs and improving processing efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A fresh corn threshing device includes a feeding port and a box. The outer wall of the feeding port is fixedly connected to the outer right wall of the box. A handle is fixedly connected to the upper right side of the box. A base is fixedly connected to the bottom of the box. A roller is rotatably connected to the right side of the base. A separating cylinder is fixedly connected to the inner left wall of the box. A pull plate is slidably connected to the left side of the box. A discharge port is fixedly connected to the lower left side of the box. A motor is installed inside the box. A rotating rod is fixedly connected to the rotating end of the motor. An adjusting component is provided on the outer wall of the rotating rod. A first sprocket is fixedly connected to the rotating end of the motor. A chain is meshed with the outer wall of the first sprocket. A second sprocket is meshed with the lower inner wall of the chain. A vibration component is provided on the right side of the second sprocket.

[0008] Furthermore, the adjustment assembly includes a first bevel gear fixedly connected to the outer wall of the right side of the rotating rod, an L-shaped plate provided on the outer wall of the left side of the rotating rod, and a second bevel gear rotatably connected to the outer wall of the right side of the L-shaped plate.

[0009] Furthermore, the vibration assembly includes an eccentric circle fixedly connected to the outer wall of the right side of the second sprocket, a right connecting rod rotatably connected to the right side of the eccentric circle, and a filter plate rotatably connected to the other side of the connecting rod.

[0010] Furthermore, a spring is sleeved on the outer wall of the left side of the rotating rod, and the outer wall of the spring is located on the left side of the L-shaped plate.

[0011] Furthermore, a third bevel gear is rotatably connected to the lower outer wall of the L-shaped plate, and the outer wall of the third bevel gear is meshed with the lower side of the outer wall of the second bevel gear.

[0012] Furthermore, a peeling roller is fixedly connected to the lower outer wall of the third bevel gear, the lower end of the peeling roller on the left side is disposed on the inner wall of the box, and the lower end of the peeling roller on the right side is rotatably connected to the inner wall of the box.

[0013] Furthermore, a fixing plate is rotatably connected to the left side of the second sprocket, and the outer wall of the fixing plate is fixedly connected to the inside of the box.

[0014] Furthermore, an auxiliary plate is rotatably connected to the outer left wall of the filter plate, and the auxiliary plate is fixedly connected inside the housing.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model can flexibly handle fresh corn raw materials of different diameters. Through the cooperation of elastic components and movable plates, when processing larger diameter fresh corn, the corn pushes the peeling structure and related components to move, compressing the elastic component to widen the spacing between the peeling structures and avoid jamming caused by excessive size. When processing smaller diameter fresh corn, the elastic component can use its own elasticity to push the related components back to their original position, reducing the spacing between the peeling structures and ensuring that the peeling structure is always in close contact with the corn surface. It can adapt to various sizes of corn without manual adjustment, greatly improving the applicability and ease of operation of the device.

[0017] 2. In this invention, during the threshing process, the motor drives the sprocket and chain transmission, causing the eccentric structure to rotate. One side of the filter plate forms a stable fulcrum based on a fixed auxiliary plate, and under the drive of the eccentric structure, it achieves regular back-and-forth swaying, forming a continuous and gentle vibration effect. This vibration can not only quickly screen the stripped material, separating corn kernels from corn silk, broken corn cobs, and other impurities, preventing impurities from mixing into the corn kernels and affecting quality; it can also prevent corn kernels from accumulating and stagnating on the surface of the filter plate, promoting the smooth flow of corn kernels along the filter plate to the subsequent guiding structure, and finally efficiently collecting them at the discharge port. This reduces material residue and waste, while also reducing the workload of subsequent manual sorting of impurities, further improving the overall processing efficiency. Attached Figure Description

[0018] Figure 1 This is a perspective view of a fresh corn threshing device proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the separation cylinder structure of a fresh corn threshing device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the filter plate structure of a fresh corn threshing device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the motor structure of a fresh corn threshing device proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the first sprocket structure of a fresh corn threshing device proposed in this utility model.

[0023] Legend:

[0024] 1. Handle; 2. Feed port; 3. Box body; 4. Discharge port; 5. Base; 6. Roller; 7. Separating cylinder; 8. Pull-out plate; 9. Rotating rod; 10. Peeling roller; 11. Connecting rod; 12. Filter plate; 13. First bevel gear; 14. First sprocket; 15. Motor; 16. Chain; 17. Second sprocket; 18. Fixing plate; 19. Second bevel gear; 20. Spring; 21. L-shaped plate; 22. Third bevel gear; 23. Eccentric circle. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 , Figure 4 and Figure 5 An embodiment of this utility model provides a fresh corn threshing device, including a feeding port 2 and a box 3. The outer wall of the feeding port 2 is fixedly connected to the outer right wall of the box 3. A handle 1 is fixedly connected to the upper right side of the box 3. A base 5 is fixedly connected to the bottom of the box 3. A roller 6 is rotatably connected to the right side of the base 5. A separating cylinder 7 is fixedly connected to the inner left wall of the box 3. A pull plate 8 is slidably connected to the left side of the box 3. A discharge port 4 is fixedly connected to the lower left side of the box 3. A motor 15 is installed inside the box 3. A rotating rod 9 is fixedly connected to the rotating end of the motor 15. A first bevel gear 13 is installed on the outer wall of the rotating rod 9. An L-shaped plate 21 is installed on the outer left side of the rotating rod 9. A second bevel gear 19 is rotatably connected to the outer right side of the L-shaped plate 21. The rotating end of the motor 15 is fixedly connected to a first sprocket 14. A chain 16 is meshed with the outer wall of the first sprocket 14. A second sprocket 17 is meshed with the inner wall of the lower side of the chain 16. An eccentric circle 23 is provided on the right side of the second sprocket 17. A right connecting rod 11 is rotatably connected to the right side of the eccentric circle 23. A filter plate 12 is rotatably connected to the other side of the connecting rod 11.

[0027] Specifically, when using the device, fresh corn is put in through the feed port 2 on the right side, and the stripping rollers 10 on both sides are driven by the motor 15 to rotate, thereby separating the corn kernels. The corn kernels will enter the discharge port 4 on the lower side through the internal channel, while the corn cobs, being longer, enter the separation cylinder 7 on the left side. In traditional devices, because the material entering is fresh corn, it is easy to retain moisture and stick together, and there will be some flocculent residue. Also, because the corn comes in different sizes, it is easy for some to be too small to be fully separated, and some to be too large to enter. First, the motor 15 drives the rotating rod 9 to rotate, which in turn drives the second bevel gear 19 and the first bevel gear 13 to rotate, thereby driving the peeling rollers 10 on both sides to rotate. The second bevel gear 19 is slidably connected to the outer wall of the rotating rod 9 and is rotatably connected to the L-shaped plate 21. The L-shaped plate 21 is rotatably connected to the third bevel gear 22 on the lower side, keeping the second bevel gear 19 and the third bevel gear 22 meshing. When the internal material is small, the spring 20 on the left side will push the L-shaped plate 21 to slide to the right, thereby pushing the peeling roller 10 to slide to the right. When the material is large, it will squeeze the peeling roller 10 to slide to the left. Furthermore, the rotation of motor 15 will drive the first sprocket 14 to rotate, and through the transmission of chain 16 and second sprocket 17, it will drive the eccentric circle 23 to rotate. The connecting rod 11 is connected to the eccentric rod on the outside of the eccentric circle 23. The other side of the connecting rod 11 is connected to the right side of the filter plate 12. Therefore, when the eccentric circle 23 rotates, it will drive the filter plate 12 to shake back and forth, thereby screening the internal particles into the lower fixed plate 18 and into the discharge port 4. The internal filter plate 12 can be processed by pulling out the pull plate 8. The lower end of the left peeling roller 10 is rotatably connected to an auxiliary block, which is slidably connected inside the box 3.

[0028] Reference Figure 2 and Figure 3 A spring 20 is fitted onto the outer wall of the left side of the rotating rod 9, and the outer wall of the spring 20 is located on the left side of the L-shaped plate 21. A third bevel gear 22 is rotatably connected to the lower outer wall of the L-shaped plate 21, and the outer wall of the third bevel gear 22 meshes with the lower side of the outer wall of the second bevel gear 19. A stripping roller 10 is fixedly connected to the lower outer wall of the third bevel gear 22, with the lower end of the left stripping roller 10 located on the inner wall of the housing 3, and the lower end of the right stripping roller 10 rotatably connected to the inner wall of the housing 3. A fixing plate 18 is rotatably connected to the left side of the second sprocket 17, and the outer wall of the fixing plate 18 is fixedly connected to the inside of the housing 3. An auxiliary plate is rotatably connected to the left outer wall of the filter plate 12, and the auxiliary plate is fixedly connected to the inside of the housing 3.

[0029] Specifically, a spring 20 is tightly fitted onto the outer left side of the rotating rod 9, while its right side adheres to the left side wall of the L-shaped plate 21. The spring 20 serves both elastic support and resetting functions: when processing large-diameter fresh corn, the corn squeezes the stripping roller 10 to the left, causing the L-shaped plate 21 to compress the spring 20; when corn is finished being conveyed or small-diameter corn is encountered, the spring 20's elastic force pushes the L-shaped plate 21 to the right to reset, ensuring that the stripping roller 10 always adheres to the corn, adapting to different sizes of raw materials and avoiding the jamming problem of traditional devices. The lower side of the L-shaped plate 21 is connected to a third bevel gear 22 via a rotating shaft, and the two mesh precisely. As the core of power transmission, the third bevel gear 22 converts the rotational power transmitted from the rotating rod 9 via the second bevel gear 19 into the driving force of the stripping roller 10, ensuring that the stripping roller 10 maintains a stable speed as it moves with the L-shaped plate 21, providing continuous and uniform torque for threshing. The lower side of the third bevel gear 22 is welded with a stripping roller 10: the lower end of the left stripping roller 10 movably abuts against the inner wall of the housing 3 and can move with the L-shaped plate 21; the lower end of the right stripping roller 10 is connected to the inner wall of the housing 3 via a bearing and is fixed in position. During operation, the two stripping rollers 10 rotate relative to each other, and the raised structure on the surface clamps the fresh corn, quickly stripping the corn kernels and improving the threshing efficiency. The left side of the second sprocket 17 is connected to a fixing plate 18 via a bearing, and the fixing plate 18 is fixed inside the housing by bolts. It has a dual function: first, it provides a stable fulcrum for the second sprocket 17, preventing transmission deviation and ensuring smooth operation of the chain 16; second, the inclined plane at the top can guide the flow, directing the corn kernels screened by the filter plate 12 to the discharge port 4, avoiding accumulation. The left side of the filter plate 12 is connected to an auxiliary plate via a hinge, and the lower end of the auxiliary plate is fixed to the bottom wall of the housing. The auxiliary plate works in conjunction with the connecting rod 11 on the right side of the filter plate 12: When the eccentric circle 23 drives the connecting rod 11 to move, the auxiliary plate provides left-side support for the filter plate 12, making it stable and swaying, efficiently separating corn kernels and impurities, preventing corn kernels from lingering at the edge of the filter plate 12, and improving the separation and collection effect.

[0030] Working principle: When the diameter of the fresh corn is large, the corn will squeeze the two peeling rollers 10 on both sides, pushing the left peeling roller 10 to drive the third bevel gear 22 and the L-shaped plate 21 to move to the left. At this time, the L-shaped plate 21 compresses the spring 20, increasing the distance between the two peeling rollers 10 to accommodate the large-sized corn. If the diameter of the corn is small, the spring 20 will push the L-shaped plate 21 to the right by its own elasticity, causing the left peeling roller 10 to move closer to the right peeling roller 10, ensuring that the peeling roller 10 is always in close contact with the surface of the corn. At the same time, the rotational power of the rotating rod 9 is transmitted to the third bevel gear 22 meshing on the lower side of the L-shaped plate 21 through the second bevel gear 19. The third bevel gear 22 drives the peeling roller 10 welded on the lower side to rotate synchronously. Since the right peeling roller 10 is fixed to the inner wall of the housing 3 by bearings and the left peeling roller 10 can move with the L-shaped plate 21, the two peeling rollers 10 rotate relative to each other. The raised structure on their surface clamps the fresh corn and quickly peels off the corn kernels. The operation of motor 15 also drives the first sprocket 14 to rotate, which in turn drives the second sprocket 17 to rotate synchronously via chain 16. The fixed plate 18 on the left side of the second sprocket 17 provides stable support to prevent transmission deviation. When the second sprocket 17 rotates, it drives the eccentric circle 23 to rotate. The eccentric circle 23 pulls the filter plate 12 through the connecting rod 11. The auxiliary plate on the left side of the filter plate 12 is fixed in the box 3 by a hinge, forming a support fulcrum. This causes the filter plate 12 to swing back and forth around the auxiliary plate, separating the peeled corn kernels from impurities. The separated corn kernels are guided along the inclined plane at the top of the fixed plate 18 to the discharge port 4 for discharge, completing the threshing process.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fresh corn threshing device, comprising a feeding port (2) and a housing (3), characterized in that: The outer wall of the feeding port (2) is fixedly connected to the right outer wall of the box (3). A handle (1) is fixedly connected to the upper right side of the box (3). A base (5) is fixedly connected to the bottom of the box (3). A roller (6) is rotatably connected to the right side of the base (5). A separation cylinder (7) is fixedly connected to the left inner wall of the box (3). A pull plate (8) is slidably connected to the left side of the box (3). A discharge port (4) is fixedly connected to the lower left side of the box (3). A motor (15) is installed inside the box (3). A rotating rod (9) is fixedly connected to the rotating end of the motor (15). An adjustment component is installed on the outer wall of the rotating rod (9). A first sprocket (14) is fixedly connected to the rotating end of the motor (15). A chain (16) is meshed with the outer wall of the first sprocket (14). A second sprocket (17) is meshed with the lower inner wall of the chain (16). A vibration component is installed on the right side of the second sprocket (17).

2. The fresh corn threshing device according to claim 1, characterized in that: The adjustment assembly includes a first bevel gear (13) fixedly connected to the outer wall of the right side of the rotating rod (9), an L-shaped plate (21) is provided on the outer wall of the left side of the rotating rod (9), and a second bevel gear (19) is rotatably connected to the outer wall of the right side of the L-shaped plate (21).

3. The fresh corn threshing device according to claim 1, characterized in that: The vibration assembly includes an eccentric circle (23) fixedly connected to the outer wall of the right side of the second sprocket (17). The right side of the eccentric circle (23) is rotatably connected to a right connecting rod (11), and the other side of the connecting rod (11) is rotatably connected to a filter plate (12).

4. The fresh corn threshing device according to claim 2, characterized in that: A spring (20) is sleeved on the outer wall of the left side of the rotating rod (9), and the outer wall of the spring (20) is located on the left side of the L-shaped plate (21).

5. The fresh corn threshing device according to claim 2, characterized in that: The lower outer wall of the L-shaped plate (21) is rotatably connected to a third bevel gear (22), and the outer wall of the third bevel gear (22) is meshed with the lower side of the outer wall of the second bevel gear (19).

6. The fresh corn threshing device according to claim 5, characterized in that: The lower outer wall of the third bevel gear (22) is fixedly connected to a peeling roller (10). The lower end of the peeling roller (10) on the left side is set on the inner wall of the box (3), and the lower end of the peeling roller (10) on the right side is rotatably connected to the inner wall of the box (3).

7. The fresh corn threshing device according to claim 3, characterized in that: The second sprocket (17) is rotatably connected to a fixing plate (18) on its left side, and the outer wall of the fixing plate (18) is fixedly connected to the inside of the box (3).

8. The fresh corn threshing device according to claim 3, characterized in that: An auxiliary plate is rotatably connected to the outer left side of the filter plate (12), and the auxiliary plate is fixedly connected inside the box body (3).

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