Screening equipment for agricultural product production and using method thereof

By introducing a drive mechanism and scraping mechanism into the screening mechanism, the reciprocating movement of the screening mechanism and material scratching are achieved, which solves the problem of inefficiency caused by material accumulation in traditional screening mechanisms and improves the screening efficiency.

CN119426161AInactive Publication Date: 2025-02-14GUANGDONG TIANPENG AGRICULTURAL & ANIMAL HUSBANDRY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411795041.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-02-14
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the screening process, traditional screening mechanisms often accumulate at the edge of the screening mechanism, and require shutdown or the operator to manually move it, which is troublesome and greatly reduces the screening efficiency.

Method used

While driving the screening mechanism to reciprocate the reciprocating movement through the drive mechanism, the scraping mechanism is used to scrape the materials accumulated on the screening mechanism, so that they re-enter the screening range of the screening mechanism.

Benefits of technology

This greatly improves the screening efficiency, avoids shutdown operations and manual toggling, and solves the problem of reduced screening efficiency caused by material accumulation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides screening equipment for agricultural product production and a using method thereof.The screening equipment comprises a rack, a driving mechanism, a screening mechanism and a scraping mechanism are arranged on the rack, the screening mechanism is in transmission connection with the driving mechanism, the driving mechanism is used for driving the screening mechanism to do reciprocating motion, and the scraping mechanism is arranged in the screening mechanism in a sliding mode; according to the screening device, the screening mechanism can be driven by the driving mechanism to do reciprocating motion, and meanwhile, the materials accumulated on the screening mechanism are scraped through the scraping mechanism, so that the materials enter the screening range of the screening mechanism again; the screening efficiency is greatly improved, and the machine does not need to be stopped or an operator does not need to take a scraper blade to stir materials accumulated in the screening mechanism.
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Description

Technical Field

[0001] The invention relates to the technical field of screening equipment, and in particular to screening equipment for agricultural product production and a use method thereof. Background Art

[0002] Agricultural products usually include rice, wheat, soybeans and other grains. After harvesting, wheat and other grains are often mixed with weeds, straw, skin and husks. Generally, a combination screen is needed to screen wheat.

[0003] In the screening process, the traditional screening mechanism often accumulates materials at the edge of the screening mechanism, and it is necessary to stop the machine to move them or the operator uses a scraper to move the accumulated materials inside the screening mechanism. This operation is cumbersome and greatly reduces the screening efficiency of the screening mechanism. Summary of the invention

[0004] In view of this, the present invention provides a screening device for agricultural product production and a method of using the same. The driving mechanism can drive the screening mechanism to perform reciprocating motion while the scraping mechanism can scrape the material accumulated on the screening mechanism. This solves the problem that in the traditional screening mechanism, materials often accumulate at the edge of the screening mechanism during the screening process, and the machine needs to be stopped to move them, or the operator needs to use a scraper to move the materials accumulated inside the screening mechanism, which is cumbersome to operate and greatly reduces the screening efficiency of the screening mechanism.

[0005] In order to solve the above technical problems, the present invention provides a screening device for agricultural product production and a method of using the same, comprising a frame, on which a driving mechanism, a screening mechanism and a scraping mechanism are arranged, wherein the screening mechanism is connected to the driving mechanism in a transmission manner, the driving mechanism is used to drive the screening mechanism to reciprocate, and the scraping mechanism is slidably arranged inside the screening mechanism, and is used to push the materials accumulated in the movement direction of the screening mechanism to re-enter the screening mechanism. The present invention can drive the screening mechanism to reciprocate through the driving mechanism, and at the same time, the materials accumulated on the screening mechanism are scraped by the scraping mechanism, so that the materials re-enter the screening range of the screening mechanism, thereby greatly improving the screening efficiency, without the need to stop the machine or the operator using a scraper to move the materials accumulated inside the screening mechanism, thereby solving the problem that in the traditional screening mechanism, materials often accumulate at the edge of the screening mechanism during the screening process, and the machine needs to be stopped to move them, or the operator needs to use a scraper to move the materials accumulated inside the screening mechanism, which is cumbersome to operate and greatly reduces the screening efficiency of the screening mechanism.

[0006] The driving mechanism includes a motor arranged on a frame, the end of the output shaft of the motor is transmission-connected with a rotating shaft, the end of the rotating shaft is hingedly provided with a connecting rod, and the other end of the connecting rod is hingedly provided on the screening mechanism. The present invention can drive the rotating shaft transmission-connected with it to rotate through the rotation of the output shaft of the motor, and the rotation of the rotating shaft can drive the connecting rod hingedly provided with it to push the screening mechanism hingedly provided with it to perform reciprocating motion, thereby realizing efficient screening operation of the material inside the screen box, with better screening effect and higher efficiency.

[0007] The screening mechanism includes a plurality of rollers arranged on a frame, and a screen box is arranged on the plurality of rollers. Each roller is arranged on the frame through a roller shaft and a bracket, and the roller is rotatably arranged on the bracket. A plurality of drying mesh holes are opened on the bottom plate of the screen box, and a hinge seat is arranged on the outer side wall of the screen box. The other end of the connecting rod is hingedly arranged on the hinge seat through a hinge shaft. The present invention can guide the screen box when it reciprocates under the driving action of the driving mechanism through the rotating roller, and the operation is more convenient.

[0008] Guide grooves are respectively provided on the two side walls of the screen box along the movement direction of the screen box, and the scraping mechanism includes a sealing plate slidably arranged inside the guide groove, a fixed seat is provided at the lower part of the sealing plate located inside the screen box, and a plurality of scraping columns that contact the inner wall of the bottom plate of the screen box are provided in the fixed seat, and a mounting plate is provided on the frame located outside the guide groove of the screen box, and a plurality of limiting cylinders are provided on the mounting plate, and a spring is provided inside each limiting cylinder, and the other end of each spring is provided on the outer wall of the sealing plate on the same side as the spring. The present invention can realize the staggered movement of the relative position of the screen box and the sealing plate in the process of driving the screen box to perform reciprocating motion by a driving mechanism, and compress or stretch the spring at the same time. The stretched or compressed spring will push the sealing plate and the fixed seat at its lower part and the inner scraping columns of the fixed seat under the action of its own restoring elastic force to push the material remaining at both ends of the bottom plate of the screen box, so that it re-enters the screening range of the drying mesh holes of the screen box, thereby realizing efficient screening of the material, without the need for subsequent cleaning by the operator, and avoiding the accumulation of material at the edge position inside the screen box.

[0009] A feed hopper is also provided on the upper part of the screen box. The present invention can guide the material to be screened through the feed hopper, which makes the operation more convenient.

[0010] The feed hopper is a funnel-shaped structure with an upper opening larger than a lower opening. The purpose of this is to form a certain slope to facilitate the smooth guidance of materials into the screen box.

[0011] A driving wheel is arranged at the end of the output shaft of the motor, a driven wheel is arranged on the rotating shaft, and a transmission belt is arranged between the driving wheel and the driven wheel. The present invention can drive the driving wheel to rotate together through the rotation of the output shaft of the motor, and the rotation of the driving wheel can drive the driven wheel connected to it to rotate together through the transmission belt, and then drive the connecting rod hinged to it and the screen box hinged at the other end of the connecting rod to reciprocate, which is more convenient to operate.

[0012] The frame is provided with a shaft seat for fixing and guiding the rotating shaft, a bearing is provided in the shaft seat, and the rotating shaft and the inner ring of the bearing are fixed together. The present invention can guide the rotation of the rotating shaft through the cooperation of the shaft seat and the bearing, and the operation is more convenient.

[0013] A material guide plate is arranged on the frame and at the lower part of the screen box, which is inclined downward. The material screened by the screen box can be guided by the material guide plate so that the material falls smoothly and is collected, and the operation is more convenient.

[0014] A method for using a screening device for agricultural product production comprises the following steps:

[0015] S1. Pour the material to be screened into the feed hopper, and guide the material conveyed by the conveying auger into the feed hopper;

[0016] S2. Start the output shaft of the motor to rotate, and the rotation of the output shaft of the motor drives the driving wheel to rotate together. The rotation of the driving wheel can drive the driven wheel connected to it to rotate together through the transmission belt, and then drive the connecting rod hinged to it and the screen box hinged at the other end of the connecting rod to reciprocate, thereby realizing efficient screening of the materials dropped through the feed hopper. In this process, the driving mechanism drives the screen box to reciprocate to achieve the staggered movement of the relative positions of the screen box and the sealing plate, and compresses or stretches the spring at the same time. The stretched or compressed spring will push the sealing plate and the fixed seat at its lower part and the inner scraper of the fixed seat under the action of its own restoring elastic force to push the materials remaining at both ends of the bottom plate of the screen box, so that they re-enter the screening range of the drying mesh holes of the screen box, thereby realizing efficient screening of the materials, without the need for subsequent cleaning by the operator, and avoiding the accumulation of materials at the edge position inside the screen box;

[0017] S3. Place a collection bucket at the lower end of the guide plate, and the material screened by the screen box will fall through the guide hopper and be collected;

[0018] S4. Clean the materials inside the screen box. The operator takes out and collects the isolated materials in the screen box.

[0019] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0020] 1. The present invention can drive the screening mechanism to reciprocate through the driving mechanism and at the same time realize the scraping mechanism to scrape the material accumulated on the screening mechanism so that the material re-enters the screening range of the screening mechanism, thereby greatly improving the screening efficiency. There is no need to stop the machine or the operator to use a scraper to move the material accumulated inside the screening mechanism. This solves the problem that in the traditional screening mechanism, materials often accumulate at the edge of the screening mechanism during the screening process, and it is necessary to stop the machine to move them or the operator to use a scraper to move the materials accumulated inside the screening mechanism, which is troublesome to operate and greatly reduces the screening efficiency of the screening mechanism.

[0021] 2. The present invention can drive the driving wheel to rotate through the rotation of the output shaft of the motor. The rotation of the driving wheel can drive the driven wheel connected to it to rotate through the transmission belt, and then drive the connecting rod hinged to it and the screen box hinged at the other end of the connecting rod to perform reciprocating motion, thereby realizing efficient screening of the materials dropped through the feed hopper. In this process, the driving mechanism drives the screen box to perform reciprocating motion, realizes the staggered movement of the relative positions of the screen box and the sealing plate, and compresses or stretches the spring at the same time. The stretched or compressed spring will push the sealing plate and the fixed seat at its lower part and the inner scraper of the fixed seat under the action of its own restoring elastic force to push the materials remaining at both ends of the bottom plate of the screen box, so that they re-enter the screening range of the drying mesh holes of the screen box, thereby realizing efficient screening of the materials, without the need for subsequent cleaning by the operator, and avoiding the accumulation of materials at the edge position inside the screen box.

[0022] 3. The present invention can guide the screen box when it reciprocates under the driving action of the driving mechanism through the rollers rotatably arranged on the frame, which makes the operation more convenient.

[0023] 4. The present invention can provide a feed hopper of a funnel-shaped structure with an upper opening larger than a lower opening, so as to form a certain slope, facilitate smooth guidance of materials into the screen box, realize the guidance operation of the materials to be screened, and make the operation more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the screening equipment for agricultural product production of the present invention;

[0025] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 For the present invention Figure 1 Enlarged view of point B in the middle;

[0027] Figure 4 It is a front view of the screening device for agricultural product production of the present invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of center C.

[0029] Explanation of the reference numerals: 100, frame; 200, driving mechanism; 201, motor; 202, rotating shaft; 203, connecting rod; 204, driving wheel; 205, driven wheel; 206, driving belt; 207, shaft seat; 208, bearing; 300, screening mechanism; 301, roller; 302, screening box; 303, drying mesh; 304, hinged seat; 305, guide groove; 400, scraping mechanism; 401, sealing plate; 402, fixing seat; 403, scraping column; 404, mounting plate; 405, limiting cylinder; 406, spring; 500, feed hopper; 600, guide plate. DETAILED DESCRIPTION

[0030] To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1-5 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0031] like Figure 1-5 As shown: This embodiment provides a screening device for agricultural product production and a method of using the same, including a frame 100, on which a driving mechanism 200, a screening mechanism 300 and a scraping mechanism 400 are arranged, wherein the screening mechanism 300 is connected to the driving mechanism 200 in a transmission manner, the driving mechanism 200 is used to drive the screening mechanism 300 to reciprocate, and the scraping mechanism 400 is slidably arranged inside the screening mechanism 300, and is used to push the materials accumulated in the moving direction of the screening mechanism 300 to re-enter the inside of the screening mechanism 300. The present invention can drive the screening mechanism 300 to reciprocate by the driving mechanism 200. While performing the reciprocating motion, the scraper mechanism 400 can scrape the material accumulated on the screening mechanism 300, so that the material re-enters the screening range of the screening mechanism 300, thereby greatly improving the screening efficiency. There is no need to stop the machine or for the operator to use a scraper to move the material accumulated inside the screening mechanism 300, which solves the problem that in the traditional screening mechanism 300, the material often accumulates at the edge of the screening mechanism 300 during the screening process, and it is necessary to stop the machine to move it or for the operator to use a scraper to move the material accumulated inside the screening mechanism 300, which is cumbersome to operate and greatly reduces the screening efficiency of the screening mechanism 300.

[0032] According to one embodiment of the present invention, Figure 1-5As shown, the driving mechanism 200 includes a motor 201 arranged on the frame 100, the output shaft end of the motor 201 is drivingly connected to the rotating shaft 202, the end of the rotating shaft 202 is hingedly provided with a rocker, the rocker is hingedly provided with a connecting rod 203, the other end of the connecting rod 203 is hingedly provided on the screening mechanism 300, the output shaft end of the motor 201 is provided with a driving wheel 204, the rotating shaft 202 is provided with a driven wheel 205, a driving belt 206 is provided between the driving wheel 204 and the driven wheel 205, the frame 100 is provided with a shaft seat 207 for fixing and guiding the rotating shaft 202, a bearing 208 is provided in the shaft seat 207, the rotating shaft 202 and the inner ring of the bearing 208 are fixed together, and the rotating shaft 202 is realized through the cooperation of the shaft seat 207 and the bearing 208. The rotation of the output shaft of the motor 201 is guided, and the operation is more convenient. The present invention can drive the driving wheel 204 to rotate together through the rotation of the output shaft of the motor 201. The rotation of the driving wheel 204 can drive the driven wheel 205 connected to it to rotate together through the transmission belt 206, and then drive the connecting rod 203 hingedly set thereto and the screen box 302 hingedly set at the other end of the connecting rod 203 to reciprocate. The operation is more convenient. The rotation of the output shaft of the motor 201 drives the rotating shaft 202 connected to it to rotate together. The rotation of the rotating shaft 202 can drive the connecting rod 203 hingedly set thereto to push the screening mechanism 300 hingedly set thereto to reciprocate, thereby realizing efficient screening of the material inside the screen box 302, and the screening effect is better and the efficiency is higher.

[0033] According to another embodiment of the present invention, Figure 1 , Figure 2 and Figure 3 As shown, the screening mechanism 300 includes a plurality of rollers 301 arranged on the frame 100, and a screen box 302 is arranged on the plurality of rollers 301. Each roller 301 is arranged on the frame 100 through a roller shaft and a bracket, and the roller 301 is rotatably arranged on the bracket. A plurality of drying mesh holes 303 are provided on the bottom plate of the screen box 302, and a hinge seat 304 is arranged on the outer side wall of the screen box 302. The other end of the connecting rod 203 is hingedly arranged on the hinge seat 304 through a hinge shaft. The present invention can guide the screen box 302 when it reciprocates under the driving action of the driving mechanism 200 through the rotating rollers 301, and the operation is more convenient.

[0034] According to another embodiment of the present invention, Figure 1 , Figure 3 and Figure 5As shown, guide grooves 305 are respectively provided on the two side walls of the screen box 302 along the movement direction of the screen box 302, and the scraper mechanism 400 includes a sealing plate 401 slidably arranged inside the guide groove 305, and a fixed seat 402 is arranged at the lower part of the sealing plate 401 located inside the screen box 302, and a plurality of scraping columns 403 that are in conflict with the inner wall of the bottom plate of the screen box 302 are arranged in the fixed seat 402, and a mounting plate 404 is arranged on the frame 100 located outside the guide groove 305 of the screen box 302, and a plurality of limiting cylinders 405 are arranged on the mounting plate 404, and a spring 406 is arranged inside each limiting cylinder 405, and the other end of each spring 406 is arranged on the sealing cylinder 406 located on the same side as the sealing cylinder 406. On the outer wall of the plate 401, the present invention can realize the staggered movement of the relative positions of the screen box 302 and the sealing plate 401 in the process of driving the screen box 302 to perform reciprocating motion through the driving mechanism 200, and at the same time compress or stretch the spring 406. The stretched or compressed spring 406 will push the sealing plate 401 and the fixed seat 402 at its lower part and the internal scraper 403 of the fixed seat 402 under the action of its own restoring elastic force to push the residual materials at both ends of the bottom plate of the screen box 302, so that it re-enters the screening range of the drying mesh holes 303 of the screen box 302, thereby realizing efficient screening of the materials, without the need for subsequent cleaning by the operator, and avoiding the accumulation of materials at the inner edge position of the screen box 302.

[0035] According to another embodiment of the present invention, Figure 1 , Figure 3 and Figure 4 As shown, a feed hopper 500 is also provided on the upper portion of the screen box 302. The present invention can guide the material to be screened through the feed hopper 500, which makes the operation more convenient.

[0036] The feed hopper 500 is a funnel-shaped structure with an upper opening larger than a lower opening. The purpose of this is to form a certain slope so that the material can be smoothly guided into the screen box 302.

[0037] A material guide plate 600 is provided on the frame 100 and is located at the lower part of the screen box 302 and is inclined downward. The present invention can guide the material screened by the screen box 302 through the material guide plate 600 so that it falls smoothly and is collected, and the operation is more convenient.

[0038] Method of use of the present invention:

[0039] First of all, it should be clear that the screening equipment involved in the present invention is mainly used for screening crops such as corn and wheat. The present invention takes the screening of wheat as an example to explain its use method in detail. When it is necessary to screen wheat, follow the following steps:

[0040] First, the material to be screened is poured into the feed hopper 500, and the material conveyed by the conveying auger is guided into the feed hopper 500;

[0041] Then, the output shaft of the motor 201 is started to rotate, and the rotation of the output shaft of the motor 201 drives the driving wheel 204 to rotate together. The rotation of the driving wheel 204 can drive the driven wheel 205 connected to it through the transmission belt 206 to rotate together, and then drive the connecting rod 203 hingedly set thereto and the screen box 302 hingedly set at the other end of the connecting rod 203 to reciprocate, thereby realizing efficient screening of the materials falling through the feed hopper 500. In this process, the driving mechanism 200 drives the screen box 302 to reciprocate to realize The relative positions of the screen box 302 and the sealing plate 401 are staggered and moved, and the spring 406 is compressed or stretched at the same time. The stretched or compressed spring 406 pushes the sealing plate 401 and the fixing seat 402 at the bottom thereof and the inner scraper 403 of the fixing seat 402 under the action of its own restoring elastic force to push the materials remaining at both ends of the bottom plate of the screen box 302, so that the materials re-enter the screening range of the drying mesh holes 303 of the screen box 302, thereby realizing efficient screening of the materials, without the need for subsequent cleaning by the operator, and avoiding the accumulation of materials at the inner edge of the screen box 302;

[0042] Then, a collecting bucket is placed at the lower end of the guide plate 600, and the material screened by the screen box 302 will fall through the guide hopper and be collected;

[0043] Finally, the material inside the screen box 302 is cleaned, and the operator takes out and collects the isolated material inside the screen box 302 .

[0044] The present invention can drive the screening mechanism 300 to perform reciprocating motion through the driving mechanism 200 and at the same time realize scraping the material accumulated on the screening mechanism 300 through the scraper mechanism 400, so that the material re-enters the screening range of the screening mechanism 300, thereby greatly improving the screening efficiency. There is no need to stop the machine or for the operator to use a scraper to move the material accumulated inside the screening mechanism 300, which solves the problem that in the traditional screening mechanism 300, the material often accumulates at the edge of the screening mechanism 300 during the screening process, and the operation needs to be stopped to move it or the operator needs to use a scraper to move the material accumulated inside the screening mechanism 300, which is cumbersome and greatly reduces the screening efficiency of the screening mechanism 300.

[0045] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A screening device for agricultural product production, comprising a frame (100), characterized in that: The frame (100) is provided with a driving mechanism (200), a screening mechanism (300) and a scraping mechanism (400), wherein the screening mechanism (300) is transmission-connected to the driving mechanism (200), the driving mechanism (200) is used to drive the screening mechanism (300) to reciprocate, and the scraping mechanism (400) is slidably arranged inside the screening mechanism (300) and is used to push materials accumulated in the moving direction of the screening mechanism (300) to re-enter the inside of the screening mechanism (300).

2. The screening equipment for agricultural product production according to claim 1, characterized in that: The driving mechanism (200) comprises a motor (201) arranged on a frame (100); the end of an output shaft of the motor (201) is drivingly connected to a rotating shaft (202); a connecting rod (203) is hingedly arranged at the end of the rotating shaft (202); and the other end of the connecting rod (203) is hingedly arranged on a screening mechanism (300).

3. The screening device for agricultural product production according to claim 2, characterized in that: The screening mechanism (300) comprises a plurality of rollers (301) arranged on a frame (100), a screening box (302) being arranged on the plurality of rollers (301), a plurality of drying mesh holes (303) being provided on a bottom plate of the screening box (302), a hinge seat (304) being arranged on an outer side wall of the screening box (302), and the other end of the connecting rod (203) being hingedly arranged on the hinge seat (304) via a hinge shaft.

4. The screening device for agricultural product production according to claim 3, characterized in that: Guide grooves (305) are respectively provided on the two side walls of the screen box (302) along the moving direction of the screen box (302); the scraper mechanism (400) comprises a sealing plate (401) slidably arranged inside the guide groove (305); a fixing seat (402) is arranged at the lower part of the sealing plate (401) located inside the screen box (302); a plurality of scraping columns (403) are arranged inside the fixing seat (402) and contact the inner wall of the bottom plate of the screen box (302); a mounting plate (404) is arranged on the frame (100) located outside the guide groove (305) of the screen box (302); a plurality of limiting cylinders (405) are arranged on the mounting plate (404); a spring (406) is arranged inside each limiting cylinder (405); and the other end of each spring (406) is arranged on the outer side wall of the sealing plate (401) located on the same side as the limiting cylinder.

5. The screening device for agricultural product production according to claim 4, characterized in that: A feed hopper (500) is also provided on the upper portion of the screen box (302).

6. The screening device for agricultural product production according to claim 5, characterized in that: The feed hopper (500) is a funnel-shaped structure with an upper opening larger than a lower opening.

7. The screening device for agricultural product production according to claim 6, characterized in that: A driving wheel (204) is arranged at the end of the output shaft of the motor (201), a driven wheel (205) is arranged on the rotating shaft (202), and a transmission belt (206) is arranged between the driving wheel (204) and the driven wheel (205).

8. The screening device for agricultural product production according to claim 7, characterized in that: The frame (100) is provided with a shaft seat (207) for fixing and guiding the rotating shaft (202), a bearing (208) is arranged inside the shaft seat (207), and the rotating shaft (202) and the inner ring of the bearing (208) are fixed together.

9. The screening device for agricultural product production according to claim 8, characterized in that: A material guide plate (600) is disposed on the frame (100) and is located at the lower part of the screen box (302) and is inclined downward.

10. A method for using a screening device for agricultural product production, characterized in that: The steps include: S1, pouring the material to be screened into the feed hopper (500); S2, starting the output shaft of the motor (201) to rotate; S3, placing a collection bucket at the lower end of the guide plate (600); S4. Clean the material inside the screen box (302).