A more stable grain separation screen

By improving the support structure and screening box design of the paddy rice separator, the problems of excessive vibration and easy damage were solved, achieving stable and efficient paddy rice separation and reducing manufacturing costs.

CN224443744UActive Publication Date: 2026-07-03ANHUI LUCKY MECHANICAL & ELECTRIC EQUIP MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI LUCKY MECHANICAL & ELECTRIC EQUIP MFG CO LTD
Filing Date
2025-07-31
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing grain separators suffer from high vibration, are prone to metal fatigue fracture and damage, have low output, resulting in high manufacturing costs and making it difficult to meet the demands of modern large-scale, high-quality production.

Method used

The bench-type transmission support frame is used instead of the stepped transmission frame. Support rods and foot plates are added. The reinforcing ribs of the screening box are parallel to the longitudinal transmission shaft. The waist-shaped hole perforation design reduces welding and deformation, and evenly transmits force.

Benefits of technology

It improves the stability and output of the gluten separator, reduces the risk of metal fatigue fracture, lowers manufacturing costs, and meets the needs of high-efficiency production.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of balsamic processing technology and discloses a more stable balsamic separation sieve, including a frame. Triangular plates are fixedly connected to the four corners of the top of the frame. Support rods are fixedly connected to the tops of the triangular plates, and screening boxes are fixedly connected to the tops of the support rods. A material leakage plate is connected to the front of the screening box, and a screening plate is connected to the bottom of the material leakage plate. A crossbeam is fixedly connected to the top center of the frame, and vertical plates are fixedly connected between adjacent crossbeams. In this utility model, the screening effect is improved by reducing the vibration of the crossbeams at the bottom of the frame while ensuring uniform force distribution. The use of a pad with a welded nut allows the weight of the screening box to fall evenly, adjusting and correcting errors caused by welding deformation and wear during later use. It also reduces the amount of welding and welding deformation, saves labor, lowers manufacturing costs, and meets daily usage needs.
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Description

Technical Field

[0001] This utility model relates to the field of rice bran processing technology, and in particular to a more stable rice bran separating screen. Background Technology

[0002] With the continuous growth of the global population and the increasing demand for food, the Food and Agriculture Organization of the United Nations predicts that global rice consumption will steadily increase at a certain rate in the coming years. As a major rice producer and consumer, China accounts for a significant share of the global rice production. This huge output means that there is an urgent need for efficient rice processing equipment. In actual processing, the rice-coarse grain separator has many problems in terms of stability and is no longer able to meet the requirements of modern large-scale, high-quality production.

[0003] In the grain processing industry, rice processing is a crucial link in ensuring food supply and meeting people's needs. In the rice processing process, the separation of paddy and husk is a key step that directly affects the yield and quality of rice. The paddy-husk separator is the core equipment for realizing this step. To meet the growing demand for grain processing and improve the efficiency and quality of rice processing, a more stable paddy-husk separator has emerged. However, the various paddy-husk separators currently on the market are prone to large vibrations, metal fatigue fracture, and damage. At the same time, the output of such paddy-husk separators is low, resulting in high manufacturing costs and inconvenience for daily use. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a more stable grain-coarse grain separating screen, which aims to improve the problems of existing grain-coarse grain separating screens on the market, such as large vibration, easy metal fatigue fracture and damage, low output, and high manufacturing cost.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a more stable grain separation screen, comprising a frame, with triangular plates fixedly connected to the four corners of the top of the frame, support rods fixedly connected to the top of the triangular plates, and a screening box fixedly connected to the top of the support rods. A material leakage plate is connected to the front side of the screening box, and a screening plate is connected to the bottom of the material leakage plate. A crossbeam is fixedly connected to the middle of the top of the frame, and vertical plates are fixedly connected between adjacent crossbeams. Long plates are fixedly connected to the front and rear sides of the top of the frame, and rocker arms are fixedly connected to the top of the long plates. The top of the outer wall of the rocker arm is connected to the bottom of the screening box, and the outer wall of the screening box is provided with screening box reinforcing ribs.

[0006] As a further description of the above technical solution:

[0007] A support plate is fixedly connected to the middle of the front side of the frame, and a ventilation device is fixedly connected to the top of the support plate.

[0008] As a further description of the above technical solution:

[0009] Each frame has a vertical plate fixedly connected to its inner center, and each frame has a base plate fixedly connected to its bottom.

[0010] As a further description of the above technical solution:

[0011] The top of the material leakage plate is connected to a circular feed nozzle.

[0012] As a further description of the above technical solution:

[0013] A hollow plate is connected to the rear side of the screening box.

[0014] As a further description of the above technical solution:

[0015] The bottom of the hollow plate is connected to a discharge port.

[0016] As a further description of the above technical solution:

[0017] Protective strips are fixedly connected to the opposite sides of the two screening plates.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the design eliminates the stepped transmission frame on the original frame and replaces it with a bench-type transmission support frame. This expands the force distribution points generated during the transmission process and transmits the force to the bottom foot plate of the frame until the force is evenly transmitted to the installation platform. This design not only ensures uniform force distribution but also reduces the vibration of the crossbeam at the bottom of the frame, improving the screening effect. Furthermore, the push-enhanced version of the screening box is a waist-shaped perforated type, which, together with the pad with welded nuts, allows the weight of the screening box to fall evenly. This can adjust and correct the errors caused by welding deformation and the errors caused by wear during later use, meeting the needs of daily use.

[0020] 2. In this utility model, by replacing the original stepped transmission support frame of the grain separation screen with a bench-type support frame, the bottom force-bearing surface is expanded to improve stability. At the same time, the reinforcing ribs of the screening box are changed to be parallel to the longitudinal transmission shaft and the thrust reinforcing plate. The position of the reinforcing ribs is moved to the force-bearing point of the thrust bearing seat so that the force-bearing point is evenly stressed, greatly reducing the stress deformation and reducing metal fatigue fracture.

[0021] 3. In this utility model, foot plates are added to the bottom of the frame to cooperate with the force points of the left and right rocker bases, while the middle foot plate at the bottom of the frame is eliminated. This allows the impact force of the rocker to be directly transmitted to the platform, eliminating frame vibration and ensuring that the movement range of the screening box is not affected, thus improving output and efficiency. This type of grain separation screen uses less steel, reduces welding and welding deformation, saves labor, and lowers manufacturing costs. Attached Figure Description

[0022] Figure 1 This is a front perspective view of a more stable gluten separator proposed in this utility model;

[0023] Figure 2 A partial structural breakdown diagram of a more stable grain separation sieve proposed in this utility model;

[0024] Figure 3 This is a partial structural diagram of a more stable grain separation sieve proposed in this utility model.

[0025] Legend:

[0026] 1. Frame; 2. Discharge port; 3. Hollow plate; 4. Screening box; 5. Circular feed nozzle; 6. Discharge plate; 7. Screening plate; 8. Ventilation equipment; 9. Rocker arm; 10. Protective strip; 11. Triangular plate; 12. Support plate; 13. Foot plate; 14. Long plate; 15. Crossbeam; 16. Vertical plate one; 17. Support rod; 18. Screening box reinforcing rib; 19. Vertical plate two. Detailed Implementation

[0027] 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.

[0028] Please see the appendix Figure 1 - Appendix Figure 3An embodiment of this utility model provides a more stable grain separation screen, including a frame 1. Triangular plates 11 are fixedly connected to the four corners of the top of the frame 1. Support rods 17 are fixedly connected to the top of the triangular plates 11. Screening box 4 is fixedly connected to the top of the support rods 17. A material leakage plate 6 is connected to the front side of the screening box 4. Screening plate 7 is connected to the bottom of the material leakage plate 6. A crossbeam 15 is fixedly connected to the middle of the top of the frame 1. Vertical plates 19 are fixedly connected between adjacent crossbeams 15. Long plates 14 are fixedly connected to the front and rear sides of the top of the frame 1. A rocker arm 9 is fixedly connected to the top of the long plate 14. The top of the outer wall of the rocker arm 9 is connected to the bottom of the screening box 4. Screening box 4 is provided with screening box reinforcing ribs 18 on the outer wall. Protective strips 10 are fixedly connected to the opposite sides of the two screening plates 7.

[0029] Specifically, the triangular plate 11 serves as the starting point of the entire support structure. The top of the triangular plate 11 is firmly fixed to the support rod 17 by welding or bolting. The top of the support rod 17 is tightly connected to the screening box 4, providing solid support for the screening box 4 and ensuring that the screening box 4 remains stable during operation. The bottom of the material leakage plate 6 is further connected to the screening plate 7, which is covered with uniform screen holes. After the grain slides from the material leakage plate 6 onto the screening plate 7, multiple crossbeams 15 are arranged in parallel under the vibration of the screening plate 7. The vertical plate 19 is fixed between adjacent crossbeams 15 by bolting. The vertical plate 19 further enhances the structural stability of the frame 1, enabling the entire frame 1 to withstand the vibration and impact generated during screening. Long plates 14 are fixedly connected to the front and rear sides of the top of the frame 1. The long plates 14 are placed horizontally, providing an installation base for the rocker arm 9. The rocker arm 9 is vertically fixed to the top of the long plate 14, and its outer top wall is connected to the bottom of the screening box 4.

[0030] Please see the appendix Figure 1 - Appendix Figure 3 Vertical plates 16 are fixedly connected to the inner middle of the frame 1, foot plates 13 are fixedly connected to the bottom of the frame 1, support plates 12 are fixedly connected to the front middle of the frame 1, ventilation equipment 8 is fixedly connected to the top of the support plates 12, circular feed nozzles 5 are connected to the top of the material leakage plate 6, hollow plates 3 are connected to the rear side of the screening box 4, and discharge ports 2 are connected to the bottom of the hollow plates 3.

[0031] Specifically, a support plate 12 is fixedly connected to the middle of the front side of the frame 1. The support plate 12 is placed horizontally. The ventilation device 8, which screens the grain, is firmly installed on the frame 1 through the support plate 12. The ventilation device 8 can generate a strong airflow. The circular feed nozzle 5 is cylindrical, which allows the grain to enter the discharge plate 6 more smoothly. The circular feed nozzle 5 can play a buffering and guiding role, reducing the collision and damage of the grain during the outflow process. Through the cooperation of the vertical plate 16 on the inner side of the frame 1, the foot plate 13 at the bottom, the support plate 12 on the front side and the ventilation device 8, as well as the coordinated work of the circular feed nozzle 5 at the top of the discharge plate 6, the hollow plate 3 on the rear side of the screening box 4 and the discharge port 2 at the bottom.

[0032] Working Principle: This design eliminates the stepped transmission frame 1 from the original frame 1 and replaces it with a bench-type transmission support frame. This expands the force distribution points during transmission and transmits the force to the bottom foot plate 13 of the frame 1 until the force is evenly distributed to the installation platform. This design ensures uniform force distribution while reducing vibration of the bottom crossbeam 15 of the frame 1, thus improving the screening effect. The reinforcing ribs 18 of the screening box 4 are perpendicular and parallel to the longitudinal transmission shaft and the thrust reinforcing plate. The reinforcing ribs 18 are located on both sides of the thrust bearing reinforcing plate and are perpendicular and parallel to it. Furthermore, the thrust reinforcing plate of the screening box 4 has a perforated, waist-shaped hole design. Combined with a pad with a welded nut, this allows the weight of the screening box 4 to fall evenly. This design can adjust and correct errors caused by welding deformation and wear during later use, while reducing welding volume and deformation, saving labor, lowering manufacturing costs, and meeting daily usage needs.

[0033] 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 more stable husk separating sieve comprising a frame (1), characterized in that: Triangular plates (11) are fixedly connected to the four corners of the top of the frame (1). A support rod (17) is fixedly connected to the top of the triangular plate (11). A screening box (4) is fixedly connected to the top of the support rod (17). A material leakage plate (6) is connected to the front side of the screening box (4). A screening plate (7) is connected to the bottom of the material leakage plate (6). A crossbeam (15) is fixedly connected to the middle of the top of the frame (1). A vertical plate (19) is fixedly connected between adjacent crossbeams (15). A long plate (14) is fixedly connected to the front and rear sides of the top of the frame (1). A rocker arm (9) is fixedly connected to the top of the long plate (14). The top of the outer wall of the rocker arm (9) is connected to the bottom of the screening box (4). A screening box reinforcing rib (18) is provided on the outer wall of the screening box (4).

2. A more stable husk separation sieve according to claim 1, characterized in that: A support plate (12) is fixedly connected to the middle of the front side of the frame (1), and a ventilation device (8) is fixedly connected to the top of the support plate (12).

3. A more stable husk separation sieve as claimed in claim 1, wherein: The inner middle of each frame (1) is fixedly connected with a vertical plate (16), and the bottom of each frame (1) is fixedly connected with a foot plate (13).

4. A more stable husk separation sieve according to claim 1, characterized in that: The top of the material leakage plate (6) is connected to a circular feed nozzle (5).

5. A more stable husk separation sieve as claimed in claim 1, wherein: The rear side of the screening box (4) is connected to a hollow plate (3).

6. A more stable gluten separator according to claim 5, characterized in that: The bottom of the hollow plate (3) is connected to the discharge port (2).

7. A more stable husk separation sieve as claimed in claim 1, wherein: Protective strips (10) are fixedly connected to the opposite sides of the two screening plates (7).