Screening machine for threshing cylinder of corn kernel machine

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By introducing a double-helix threshing and anti-clogging drum screening structure into the corn kernel machine, the problems of insufficient corn threshing and easy clogging of the screening machine have been solved, realizing automated threshing and screening, and improving the ease of use and efficiency of the equipment.

CN223859781UActive Publication Date: 2026-02-03JILIN AGRICULTURAL UNIV

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Patent Information

Application Number: CN202520479270.9
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-03-19
Publication Date: 2026-02-03
Estimated Expiration: 2035-03-19

AI Technical Summary

Technical Problem

Existing corn threshers do not thresh corn completely and require repeated manual operation. The screening machine is prone to clogging, resulting in inconvenience and high labor costs.

Method used

Design a corn kernel threshing drum screening machine, which adopts a double-helix threshing structure and an anti-clogging drum screening structure. The drive motor in the double-helix threshing structure drives the rotating and driven threshing rollers to achieve thorough threshing, and the cleaning roller in the anti-clogging drum screening structure cleans the mesh of the screening hopper.

Benefits of technology

It achieves complete threshing and automated screening of corn kernels, reduces manual operation, prevents clogging of the screening machine, and improves the ease of use and efficiency of the equipment.

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Abstract

The utility model relates to the technical field of screening machines, in particular to a corn kernel machine threshing cylinder screening machine which comprises a connecting base, a double-helix threshing structure is connected to the end face of the connecting base, an anti-blocking cylinder screening structure is arranged at the bottom of the connecting base, and a controller is connected to the end face of the connecting base through a connecting base. The double-helix threshing structure comprises a connecting shell and a driving motor, the connecting shell is connected to the end face of the connecting base through a connecting base, the driving motor is connected to the end face of the connecting base through a connecting box, and the driving end of the driving motor is connected with a driving rod through a coupler; the anti-blocking drum screening machine is arranged in the threshing drum screening machine of the corn kernel machine, the cleaning roller is driven to rotate through the transmission structure when the screening hopper in the anti-blocking drum screening machine rotates, the meshes of the screening hopper can be cleaned, and the situation that the meshes of the screening hopper are blocked by corn kernels, and the screening effect is affected is prevented.

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Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, specifically a corn kernel threshing drum screening machine. Background Technology

[0002] In agricultural production, corn needs to be threshed and screened after drying for subsequent processing. However, existing threshing machines use single rollers, resulting in insufficient threshing of the corn cobs. This necessitates manual reloading of the corn cobs into the machine for further threshing, making the machine inconvenient to use. Furthermore, threshing and screening after drying require two separate machines, necessitating multiple handling of the corn and consuming significant manpower. Additionally, existing screening machines are prone to clogging the screen mesh during screening, affecting the screening effect. To address these issues, a corn kernel threshing and screening machine is needed. Utility Model Content

[0003] The purpose of this utility model is to provide a corn kernel threshing drum screening machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A corn kernel threshing drum screening machine includes a connecting base, a double-helix threshing structure connected to the end face of the connecting base, an anti-clogging drum screening structure provided at the bottom of the connecting base, and a controller connected to the end face of the connecting base via a connecting seat.

[0006] The double-helix threshing structure includes a connecting shell and a drive motor. The connecting shell is connected to the end face of the connecting base via a connecting seat. The drive motor is connected to the end face of the connecting base via a connecting box. The drive end of the drive motor is connected to a drive rod via a coupling. A drive gear is connected to the side wall of the drive rod. A rotating gear and a driven gear are meshed on the side wall of the drive gear. A rotating threshing roller and a driven threshing roller are connected to the side wall of the rotating gear and the driven gear and located in the inner cavity of the connecting shell. A conveying auger is provided on the outer wall of both the rotating threshing roller and the driven threshing roller. A conveying flap is connected to the side wall of the drive rod and located in the inner cavity of the connecting shell. A feed funnel is provided on the end face of the connecting shell and above the rotating threshing roller. A collection funnel is provided at the bottom of the connecting shell and below the driven threshing roller and the conveying flap.

[0007] As a preferred embodiment of this utility model, the anti-clogging roller screening structure includes a screening barrel, which is disposed below the connecting base. A drive rod is connected to the center of the screening barrel, and a driven pulley is connected to one end of the drive rod. A drive pulley is connected to the side wall of the driven pulley via a belt. The drive pulley is connected to the side wall of the drive rod. A screening hopper is connected to the side wall of the drive rod and located in the inner cavity of the screening barrel. A connecting gear is connected to the inner wall of the screening hopper. A transmission gear is meshed with the side wall of the connecting gear. A cleaning roller is connected to the center of the transmission gear and located in the inner wall of the screening hopper. Multiple discharge ports are provided on the side wall of the screening barrel.

[0008] In a preferred embodiment of this utility model, the drive motor is connected to the controller via a wire in an electrical connection manner, and the drive rod is connected to the side wall of the connecting housing via a bearing seat, wherein the drive rod and the bearing seat are connected in a rotatable manner.

[0009] As a preferred embodiment of this utility model, the rotating threshing roller is connected to the side wall of the connecting housing via a bearing seat, wherein the connection between the rotating threshing roller and the bearing seat is a rotating connection.

[0010] As a preferred embodiment of this utility model, the driven threshing roller is connected to the side wall of the connecting housing via a bearing seat, wherein the connection between the driven threshing roller and the bearing seat is a rotatable connection.

[0011] In a preferred embodiment of this utility model, the drive rod is connected to the side wall of the screening hopper via a bearing seat, wherein the drive rod and the bearing seat are connected by a rotatable connection.

[0012] In a preferred embodiment of this utility model, the cleaning roller is connected to the side wall of the screening hopper via a bearing seat, wherein the connection between the cleaning roller and the bearing seat is a rotatable connection.

[0013] As a preferred embodiment of this utility model, the side wall of the screening hopper is provided with multiple sets of discharge holes, wherein the mesh size of the discharge holes increases sequentially from left to right.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, a double-helix threshing structure is set in the corn kernel mill threshing drum screening machine. The drive motor in the double-helix threshing structure, through the transmission structure, causes the corn cobs to be threshed as they are conveyed from right to left on the rotating threshing roller. When the corn cobs and kernels reach the conveying flap, the kernels are screened out, and the corn cobs are conveyed to the driven threshing roller. The incompletely threshed corn cobs are further threshed on the driven threshing roller from left to right during the conveying process. The kernels are screened out, and the corn cobs are output from the tail end of the driven threshing roller, making the threshing of corn kernels more thorough.

[0016] In this invention, an anti-clogging drum screen is installed in the corn kernel threshing drum screen. When the screening hopper in the anti-clogging drum screen rotates, the cleaning roller is driven to rotate through the transmission structure, which can clean the mesh of the screening hopper and prevent the mesh of the screening hopper from being blocked by corn kernels, thus affecting the screening effect.

[0017] In this invention, a double-helix threshing structure and an anti-clogging drum screening are set in the corn kernel threshing drum screening machine. The drive motor in the double-helix threshing structure drives the driven threshing roller, rotating threshing roller, conveying auger, conveying flap and screening hopper to rotate through the transmission structure. This allows the device to perform corn kernel threshing and screening at the same time, improving the automation performance of the device and making it more convenient to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isotropic structure of this utility model;

[0019] Figure 2 for Figure 1 Partial structural diagram;

[0020] Figure 3 This is a schematic diagram of the double-helix threshing structure of this utility model;

[0021] Figure 4 for Figure 3 Partial structural diagram;

[0022] Figure 5 This is a schematic diagram of the anti-clogging drum screening structure of this utility model;

[0023] Figure 6 for Figure 5 A cross-sectional structural diagram.

[0024] In the diagram: 1. Connecting base; 2. Double spiral threshing structure; 3. Anti-clogging roller screening structure; 4. Controller; 200. Connecting housing; 201. Drive motor; 202. Drive rod; 203. Drive gear; 204. Rotating gear; 205. Driven gear; 207. Driven threshing roller; 208. Rotating threshing roller; 209. Conveying auger; 210. Conveying flap; 211. Feed hopper; 212. Collection hopper; 301. Screening hopper; 302. Drive rod; 303. Driven pulley; 304. Drive pulley; 305. Screening hopper; 306. Connecting gear; 307. Transmission gear; 308. Cleaning roller; 309. Discharge port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] For an example, please refer to... Figure 1-6 This utility model provides a technical solution:

[0027] A corn kernel threshing drum screening machine includes a connecting base 1, a double helix threshing structure 2 connected to the end face of the connecting base 1, an anti-clogging drum screening structure 3 provided at the bottom of the connecting base 1, and a controller 4 connected to the end face of the connecting base 1 via a connecting seat.

[0028] In this embodiment, reference Figure 1 , Figure 2 , Figure 3 and Figure 4The double-helix threshing structure 2 includes a connecting housing 200 and a drive motor 201. The connecting housing 200 is connected to the end face of the connecting base 1 via a connecting seat. The drive motor 201 is connected to the end face of the connecting base 1 via a connecting box. The drive end of the drive motor 201 is connected to a drive rod 202 via a coupling. A drive gear 203 is connected to the side wall of the drive rod 202. A rotating gear 204 and a driven gear 205 are meshed on the side wall of the drive gear 203. The side walls of the rotating gear 204 and the driven gear 205 are located on the connecting... A rotating threshing roller 208 and a driven threshing roller 207 are connected in the inner cavity of the connecting housing 200. Conveying augers 209 are provided on the outer walls of both the rotating threshing roller 208 and the driven threshing roller 207. A conveying flap 210 is connected on the side wall of the drive rod 202 and in the inner cavity of the connecting housing 200. A feeding funnel 211 is provided on the end face of the connecting housing 200 and above the rotating threshing roller 208. A collecting funnel 212 is provided at the bottom of the connecting housing 200 and below the driven threshing roller 207 and the conveying flap 210.

[0029] Based on the above structure and its connection relationships, the controller 4 controls the drive motor 201. When the drive end of the drive motor 201 rotates, it sequentially drives the drive rod 202, drive gear 203, rotating gear 204, driven gear 205, rotating threshing roller 208, driven threshing roller 207, conveying auger 209, and conveying flap 210 to rotate. When the rotating threshing roller 208 and conveying auger 209 rotate, the corn cobs are threshed during the process of being conveyed from right to left. When the corn cobs and... When the corn kernels reach the conveyor flap 210, they are conveyed from the screening hole through the feed funnel 211 to the anti-clogging drum screening structure 3. The corn cobs are conveyed to the driven threshing roller 207. When the driven threshing roller 207 and the conveying auger 209 rotate, the corn cobs that are not completely threshed are threshed from left to right during the conveying process. The corn kernels are conveyed from the screening hole at the bottom of the driven threshing roller 207 through the feed funnel 211 to the anti-clogging drum screening structure 3, while the corn cobs are output from the tail end of the driven threshing roller 207.

[0030] Furthermore, the drive motor 201 is connected to the controller 4 via wires in an electrical connection manner, and the operation of the drive motor 201 can be controlled by the controller 4.

[0031] Furthermore, the drive rod 202 is connected to the side wall of the connecting housing 200 via a bearing seat, wherein the drive rod 202 and the bearing seat are connected in a rotatable manner. The rotating threshing roller 208 is connected to the side wall of the connecting housing 200 via a bearing seat, wherein the rotating threshing roller 208 and the bearing seat are connected in a rotatable manner. The driven threshing roller 207 is connected to the side wall of the connecting housing 200 via a bearing seat, wherein the driven threshing roller 207 and the bearing seat are connected in a rotatable manner. When the drive rod 202 rotates, it can drive the rotating threshing roller 208 and the driven threshing roller 207 to rotate.

[0032] In this embodiment, reference Figure 1 , Figure 2 , Figure 5 and Figure 6 The anti-clogging roller screening structure 3 includes a screening barrel 301, which is located below the connecting base 1. A drive rod 302 is connected to the center of the screening barrel 301. One end of the drive rod 302 is connected to a driven pulley 303. A drive pulley 304 is connected to the side wall of the driven pulley 303 via a belt. The drive pulley 304 is connected to the side wall of the drive rod 202. A screening hopper 305 is connected to the side wall of the drive rod 302 and located in the inner cavity of the screening barrel 301. A connecting gear 306 is connected to the inner wall of the screening hopper 305. A transmission gear 307 is meshed with the side wall of the connecting gear 306. A cleaning roller 308 is connected to the center of the transmission gear 307 and located in the inner wall of the screening hopper 305. Multiple discharge ports 309 are provided on the side wall of the screening barrel 301.

[0033] Based on the above structure and the connection relationship of the above structure, when the drive rod 202 rotates, it sequentially drives the drive pulley 304, the driven pulley 303, the drive rotating rod 302, the screening hopper 305 and the connecting gear 306 to rotate, thereby performing the grading and screening of corn kernels. When the connecting gear 306 rotates, it drives the transmission gear 307 and the cleaning roller 308 to rotate, thereby performing the cleaning of the mesh of the screening hopper 305, preventing the mesh of the screening hopper 305 from being blocked by corn kernels and affecting the screening effect.

[0034] Furthermore, the drive rod 302 is connected to the side wall of the screening barrel 301 via a bearing seat, wherein the drive rod 302 and the bearing seat are connected in a rotatable manner. The cleaning roller 308 is connected to the side wall of the screening barrel 301 via a bearing seat, wherein the cleaning roller 308 and the bearing seat are connected in a rotatable manner. When the drive rod 202 rotates, it can drive the drive rod 302 and the cleaning roller 308 to rotate.

[0035] Furthermore, the side wall of the screening hopper 305 is provided with multiple sets of discharge holes, the mesh size of which increases from left to right, enabling multi-stage screening.

[0036] The working process of this utility model is as follows: When using the corn kernel threshing drum screening machine, first connect the power supply to the device to put it into operation. The controller 4 controls the drive motor 201. When the drive end of the drive motor 201 rotates, it drives the drive rod 202 to rotate. The drive rod 202 drives the drive gear 203 and the conveying flap 210 to rotate. The drive gear 203 drives the rotating gear 204 and the driven gear 205 to rotate. The rotating gear 204 drives the rotating threshing roller 208 and the conveying auger 209 to rotate. The driven gear 205 drives the driven threshing roller 207 and the conveying auger 209 to rotate. The rotating threshing roller 208... When the conveying auger 209 rotates, the corn cobs are threshed as they are conveyed from right to left. When the corn cobs and kernels reach the conveying flap 210, the kernels are conveyed from the screening hole through the feed funnel 211 to the anti-clogging drum screening structure 3, and the corn cobs are conveyed to the driven threshing roller 207. When the driven threshing roller 207 and the conveying auger 209 rotate, the corn cobs that are not completely threshed are threshed from left to right during the conveying process. The kernels are conveyed from the screening hole at the bottom of the driven threshing roller 207 through the feed funnel 211 to the anti-clogging drum screening structure 3, and the corn cobs are output from the tail end of the driven threshing roller 207.

[0037] When the drive rod 202 rotates, it drives the drive pulley 304 to rotate. The drive pulley 304 drives the driven pulley 303 to rotate via a belt. The driven pulley 303 drives the drive rod 302, the screening hopper 305 and the connecting gear 306 to rotate, thereby performing the grading and screening of corn kernels. When the connecting gear 306 rotates, it drives the transmission gear 307 and the cleaning roller 308 to rotate, thereby cleaning the mesh of the screening hopper 305 to prevent the mesh of the screening hopper 305 from being blocked by corn kernels and affecting the screening effect.

[0038] 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 corn kernel threshing drum screening machine, comprising a connecting base (1), characterized in that: A double-helix threshing structure (2) is connected to the end face of the connecting base (1), and an anti-clogging roller screening structure (3) is provided at the bottom of the connecting base (1). A controller (4) is connected to the end face of the connecting base (1) through a connecting seat. The double-helix threshing structure (2) includes a connecting housing (200) and a drive motor (201). The connecting housing (200) is connected to the end face of the connecting base (1) via a connecting seat. The drive motor (201) is connected to the end face of the connecting base (1) via a connecting box. The drive end of the drive motor (201) is connected to a drive rod (202) via a coupling. A drive gear (203) is connected to the side wall of the drive rod (202). A rotating gear (204) and a driven gear (205) are meshed on the side wall of the drive gear (203). The rotating gear (204) and the driven gear (205) are located on the side wall of the connecting... A rotating threshing roller (208) and a driven threshing roller (207) are connected in the inner cavity of the connecting housing (200). A conveying auger (209) is provided on the outer wall of both the rotating threshing roller (208) and the driven threshing roller (207). A conveying flap (210) is connected on the side wall of the drive rod (202) and in the inner cavity of the connecting housing (200). A feed funnel (211) is provided on the end face of the connecting housing (200) and above the rotating threshing roller (208). A collection funnel (212) is provided at the bottom of the connecting housing (200) and below the driven threshing roller (207) and the conveying flap (210).

2. The corn kernel threshing drum screening machine according to claim 1, characterized in that: The anti-clogging roller screening structure (3) includes a screening hopper (301), which is located below the connecting base (1). A drive rod (302) is connected to the center of the screening hopper (301). One end of the drive rod (302) is connected to a driven pulley (303). A drive pulley (304) is connected to the side wall of the driven pulley (303) via a belt. The drive pulley (304) is connected to the side wall of the drive rod (202). A screening hopper (305) is connected to the side wall of the rotating rod (302) and inside the screening hopper (301). A connecting gear (306) is connected to the inner wall of the screening hopper (305). A transmission gear (307) is meshed on the side wall of the connecting gear (306). A cleaning roller (308) is connected to the center of the transmission gear (307) and inside the screening hopper (305). Multiple discharge ports (309) are provided on the side wall of the screening hopper (301).

3. The corn kernel threshing drum screening machine according to claim 2, characterized in that: The drive motor (201) is connected to the controller (4) by wires and the connection method is electrical connection. The drive rod (202) is connected to the side wall of the connecting housing (200) by bearing seat, wherein the connection method between the drive rod (202) and the bearing seat is rotatable connection.

4. The corn kernel threshing drum screening machine according to claim 2, characterized in that: The rotating threshing roller (208) is connected to the side wall of the connecting housing (200) via a bearing seat, wherein the rotating threshing roller (208) and the bearing seat are connected by a rotating connection.

5. A corn kernel threshing drum screening machine according to claim 2, characterized in that: The driven threshing roller (207) is connected to the side wall of the connecting housing (200) via a bearing seat, wherein the driven threshing roller (207) and the bearing seat are connected by a rotatable connection.

6. A corn kernel threshing drum screening machine according to claim 2, characterized in that: The drive rod (302) is connected to the side wall of the screening hopper (301) through a bearing seat, wherein the drive rod (302) and the bearing seat are connected by a rotatable connection.

7. A corn kernel threshing drum screening machine according to claim 2, characterized in that: The cleaning roller (308) is connected to the side wall of the screening hopper (301) via a bearing seat, wherein the cleaning roller (308) and the bearing seat are connected by a rotatable connection.

8. A corn kernel threshing drum screening machine according to claim 2, characterized in that: The screening hopper (305) has multiple sets of discharge holes on its side wall, wherein the mesh size of the discharge holes increases sequentially from left to right.