提高筛分效率的杂粮用筛分机构
By using a U-shaped frame structure and a motor-driven screening mechanism, combined with hot air drying and moving plate pushing, the problem of existing equipment being unable to dry and screen quickly has been solved, achieving efficient screening and automated collection of grains.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JILIN DEWEI RICE IND CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing grain screening equipment is difficult to dry and screen quickly, the screens are prone to clogging, and it is difficult to achieve the classification and collection of grains of different sizes.
The screening mechanism adopts a U-shaped frame structure, combined with the rotation of the screen cylinder driven by a motor and the reciprocating motion of the moving plate. It is equipped with a hot air mechanism for dynamic drying, uses centrifugal force to achieve uniform distribution of grains, and prevents clogging through the cooperation of the pusher plate and the moving plate, thus achieving automated collection.
It enables rapid drying and efficient screening of grains, reduces screen clogging, and ensures the stability of the screening process and the efficiency of automated collection.
Smart Images
Figure CN224507549U_ABST
Abstract
Claims
1. A screening mechanism for coarse grains to improve screening efficiency, comprising a U-shaped frame (1); characterized in that: A support body (2) is fixedly connected to the upper end of the U-shaped frame (1). Two fixed plates (3) are fixedly connected to the upper inclined surface of the support body (2). A belt conveyor (4) is set between the two fixed plates (3). A guide block (8) is fixedly connected to the upper end of the U-shaped frame (1). A U-shaped slide (9) is slidably provided on the side wall of the guide block (8). A moving mechanism for pushing the U-shaped slide (9) is provided at the upper end of the U-shaped frame (1). Rotating columns (13) are rotatably mounted on the inner walls of both sides of the U-shaped slide (9). A central cylinder (14) is fixedly connected to the side wall of the rotating column (13). A sieve cylinder (16) is fixedly connected to the side wall of the central cylinder (14). A first motor (15) is fixedly connected to the upper part of one side of the U-shaped slide (9). The output shaft of the first motor (15) is fixedly connected to one end of the rotating column (13). One side of the sieve cylinder (16) is open. A second electric cylinder (17) is fixedly connected to the lower part of one side of the U-shaped slide (9). The output shaft of the second electric cylinder (17) passes through the U-shaped slide (9) and is fixedly connected to a push plate. (18), the outer wall of the push plate (18) is attached to the inner wall of the screen cylinder (16), the inner wall of the push plate (18) is attached to the side wall of the central cylinder (14), a second motor (19) is fixedly connected to one side of the push plate (18), the output shaft of the second motor (19) passes through the push plate (18) and is fixedly connected to the lead screw (20), the lead screw (20) is threaded with a thread sleeve (21) on the side wall, the thread sleeve (21) is fixedly connected to the side wall of the moving plate (22), the moving plate (22) is equipped with a hot air mechanism, and the side wall of the screen cylinder (16) is opened with uniformly distributed screen holes (23); A fixing cover (30) is fixedly connected to the upper opening of the screen cylinder (16), and an installation cover (31) is threaded onto the inner wall of the fixing cover (30).
2. The screening mechanism for coarse cereals according to claim 1, characterized in that: A through hole is provided in the center of one side of the movable plate (22), and the inner wall of the through hole is in contact with the side wall of the central cylinder (14).
3. The grain screening mechanism for improving screening efficiency according to claim 1, characterized in that: Two fixed plates (3) are fixed together at their close ends with a baffle (6), and there is a gap between the lower end of the baffle (6) and the upper end of the conveyor belt of the belt conveyor (4).
4. The screening mechanism for coarse cereals according to claim 1, characterized in that: The moving mechanism includes a fixed block (10), a first electric cylinder (11), and a push block (12); the upper end of the U-shaped frame (1) is fixedly connected to the fixed block (10), the first electric cylinder (11) is fixedly connected to one side of the fixed block (10), the push block (12) is fixedly connected to the output shaft of the first electric cylinder (11), and the side end of the push block (12) is fixedly connected to the side end of the U-shaped slide (9).
5. The screening mechanism for coarse cereals according to claim 1, characterized in that: A hopper (5) is fixed to one side of the U-shaped frame (1), and a collection box (7) is placed at the left end of the U-shaped frame (1). The collection box (7) is located below the output end of the belt conveyor (4).
6. The screening mechanism for coarse cereals according to claim 1, characterized in that: The hot air mechanism includes an axial flow fan (25), a protective plate (26), a first ventilation slot (27), a second ventilation slot (28), and an electric heating block (29). Two axial flow fans (25) are fixedly connected to the upper part of one side of the movable plate (22). The two axial flow fans (25) are symmetrical about the lead screw (20). The inner walls of both ends of the axial flow fans (25) are fixedly connected to the protective plate (26). Multiple first ventilation slots (27) are opened through one side of the protective plate (26). A second ventilation slot (28) is opened through the lower part of one side of the movable plate (22). Multiple electric heating blocks (29) are fixedly connected to the upper and lower ends of the inner wall of the second ventilation slot (28). There is a gap between two adjacent electric heating blocks (29).
7. The screening mechanism for coarse cereals according to claim 1, characterized in that: A boss (24) is fixed to one side of the push plate (18) near the moving plate (22). The boss (24) is a frustum structure. A limiting hole is opened through one side of the boss (24). The inner wall of the limiting hole is in contact with the side wall of the lead screw (20).
8. The screening mechanism for coarse cereals according to claim 1, characterized in that: There are gaps between the upper and lower ends of the movable plate (22) and the inner wall of the sieve cylinder (16).
9. The screening mechanism for coarse cereals of claim 1, wherein: There is a gap between one side of the sieve cylinder (16) and the inner wall of one side of the U-shaped slide (9).