Crop particle screening and reverse conveying device

Abstract

The utility model discloses a crop particle screening reverse conveying device which comprises a conveying frame, two supporting legs are fixedly installed on the bottom wall of the conveying frame, two conveying rollers are rotatably installed in the conveying frame, a reversible motor is fixedly installed on the outer wall of one of the conveying rollers, and the reversible motor is fixedly installed on the outer wall of the other conveying roller. A conveying belt is jointly installed on the outer walls of the two conveying rollers, a connecting frame is fixedly installed on the outer wall of the conveying frame through a connecting mechanism, a sliding rod is fixedly installed on the inner wall of the connecting frame, and two sliding blocks are slidably installed on the outer wall of the sliding rod through a stabilizing mechanism. By arranging the conveying frame, the conveying rollers, the reversible motor, the conveying belt and other assemblies, the reversible motor is controlled to rotate forwards and backwards to change the rotating direction of the conveying rollers, forward and reverse conveying of the conveying belt is achieved, the requirements of different production scenes for the material conveying direction are flexibly met, and the practicability and production adaptability of the device are remarkably improved; the problems that the conveying direction of traditional equipment is fixed, and complex production requirements are difficult to meet are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, and in particular to a reverse conveying device for screening crop particles. Background Technology

[0002] Crop grains refer to the seeds or fruits formed after crops mature. These grains usually have a specific shape and size and are the main object of crop propagation and harvesting.

[0003] In the post-harvest processing of crops, screening and conveying are key steps. In existing technologies, traditional screening equipment often has a single function, which can only perform simple particle screening and has a fixed conveying direction, making it difficult to meet complex and ever-changing production needs. For example, in some small grain processing plants, due to space constraints, conventional forward conveying will lead to inconvenient equipment layout and uneven material flow. This not only reduces production efficiency but also increases labor and time costs, making it impractical. Therefore, it is necessary to redesign a reverse conveying device for crop particle screening to address the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a reverse conveying device for screening crop particles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A reverse conveying device for screening crop particles includes a conveying frame. Two support legs are fixedly installed on the bottom wall of the conveying frame. Two conveying rollers are rotatably installed inside the conveying frame. A reversible motor is fixedly installed on the outer wall of one of the conveying rollers. A conveyor belt is installed on the outer walls of both conveying rollers. A connecting frame is fixedly installed on the outer wall of the conveying frame via a connecting mechanism. A sliding rod is fixedly installed on the inner wall of the connecting frame. Two sliders are slidably installed on the outer wall of the sliding rod via a stabilizing mechanism. The outer walls of both sliders are connected to the inner wall of the connecting frame via an elastic mechanism. The upper surfaces of the two sliders share a common... A screening frame is fixedly installed, and an extrusion block is fixedly installed on the outer wall of one of the sliders. The extrusion block has an extrusion groove on its outer wall. A rotating motor is fixedly installed on the outer wall of the connecting frame through a support mechanism. A cam is fixedly installed on the outer wall of the output shaft of the rotating motor. A screening plate is slidably installed on the inner wall of the screening frame through a fixing mechanism. Two handles are fixedly installed on the upper surface of the screening plate. Multiple discharge pipes communicating with the outside are fixedly installed on the inner bottom wall of the screening frame. Two baffles are fixedly installed on the upper surface of the conveying frame. One of the baffles has a limiting port on its outer wall that cooperates with the multiple discharge pipes.

[0007] Preferably, the connecting mechanism includes a connecting plate fixedly installed on the outer wall of the conveying frame, and the outer wall of the connecting plate is fixedly connected to the bottom wall of the connecting frame.

[0008] Preferably, the stabilizing mechanism includes a stabilizing rod fixedly installed inside the connecting frame, the stabilizing rod sliding through the two sliders.

[0009] Preferably, the elastic mechanism includes a spring installed on the outer wall of the slide bar, with both ends of the spring elastically connected to the outer wall of the slider and the inner wall of the connecting frame, respectively.

[0010] Preferably, the support mechanism includes a support plate fixedly installed on the outer wall of the connecting frame, and the rotating motor is fixedly installed on the bottom wall of the support plate.

[0011] Preferably, the fixing mechanism includes fixing plates fixedly installed on the inner walls of both sides of the screening frame, and the screening plate is slidably installed on the upper surface of the two fixing plates.

[0012] The beneficial effects of this utility model are:

[0013] 1. By setting up components such as a conveyor frame, conveyor rollers, reversible motors and conveyor belts, the direction of the conveyor rollers can be changed by controlling the forward and reverse rotation of the reversible motor, so as to realize forward and reverse conveying of the conveyor belt. This flexibly adapts to the material conveying direction requirements of different production scenarios, significantly improves the practicality and production adaptability of the device, and effectively solves the problem that the conveying direction of traditional equipment is fixed and it is difficult to meet complex production needs.

[0014] 2. By setting up components such as springs, extrusion blocks, and cams, and driving the cams to rotate via a rotating motor, the cams periodically extrude force from the extrusion blocks, driving the connected sliders to overcome the spring force and slide, thereby driving the screening frame to perform reciprocating linear motion. This achieves automatic reciprocating motion of the screening frame, providing a stable power source for screening crop particles, effectively avoiding manual operation, improving screening efficiency, and the structure is compact, stable in operation, and can ensure the continuity and efficiency of the screening process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a reverse conveying device for screening crop particles proposed in this utility model;

[0016] Figure 2 This is a rear view schematic diagram of a reverse conveying device for screening crop particles proposed in this utility model;

[0017] Figure 3 for Figure 1 A schematic diagram of the vertical section structure;

[0018] Figure 4 This is a top view schematic diagram of a reverse conveying device for screening crop particles proposed in this utility model;

[0019] Figure 5 for Figure 1 Enlarged schematic diagram of the structure at point A in the diagram;

[0020] Figure 6 for Figure 2 Enlarged schematic diagram of the structure at point B in the diagram;

[0021] Figure 7 for Figure 4 A magnified schematic diagram of the structure at point C.

[0022] In the diagram: 1. Conveying frame, 2. Support leg, 3. Conveying roller, 4. Reversible motor, 5. Conveying belt, 6. Connecting plate, 7. Connecting frame, 8. Slide bar, 9. Stabilizing bar, 10. Slider, 11. Spring, 12. Screening frame, 13. Extrusion block, 14. Support plate, 15. Rotating motor, 16. Cam, 17. Fixing plate, 18. Screening plate, 19. Handle, 20. Discharge pipe, 21. Baffle. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-7 A reverse conveying device for screening crop particles includes a conveying frame 1. Two support legs 2 are fixedly installed on the bottom wall of the conveying frame 1. Two conveying rollers 3 are rotatably installed inside the conveying frame 1. A reversible motor 4 is fixedly installed on the outer wall of one of the conveying rollers 3. A conveyor belt 5 is installed on the outer walls of both conveying rollers 3. A connecting frame 7 is fixedly installed on the outer wall of the conveying frame 1 through a connecting mechanism. The connecting mechanism includes a connecting plate 6 fixedly installed on the outer wall of the conveying frame 1. The outer wall of the connecting plate 6 is fixedly connected to the bottom wall of the connecting frame 7. A sliding rod 8 is fixedly installed on the inner wall of the connecting frame 7. The outer wall of the sliding rod 8 is connected to a stabilizing mechanism. The structure has two sliding blocks 10. The stabilizing mechanism includes a stabilizing rod 9 fixedly installed inside the connecting frame 7. The stabilizing rod 9 slides through the two sliding blocks 10. The outer walls of the two sliding blocks 10 are connected to the inner wall of the connecting frame 7 through an elastic mechanism. The elastic mechanism includes a spring 11 installed on the outer wall of the sliding rod 8. The two ends of the spring 11 are elastically connected to the outer wall of the sliding block 10 and the inner wall of the connecting frame 7, respectively. The elastic characteristics of the spring 11 can effectively buffer the impact force generated by the sudden change of direction during the movement of the screening frame 12, avoid damage to the equipment structure due to excessive instantaneous stress, and extend the service life of the equipment.

[0025] A screening frame 12 is fixedly installed on the upper surface of two sliders 10. An extrusion block 13 is fixedly installed on the outer wall of one slider 10. An extrusion groove is opened on the outer wall of the extrusion block 13. A rotating motor 15 is fixedly installed on the outer wall of the connecting frame 7 through a support mechanism. The support mechanism includes a support plate 14 fixedly installed on the outer wall of the connecting frame 7. The rotating motor 15 is fixedly installed on the bottom wall of the support plate 14. A cam 16 is fixedly installed on the outer wall of the output shaft of the rotating motor 15. A screening plate 18 is slidably installed on the inner wall of the screening frame 12 through a fixing mechanism. The fixing mechanism includes fixing plates 17 fixedly installed on the inner walls of both sides of the screening frame 12. The screening plate 18 is slidably installed on the upper surface of the two fixing plates 17. Two handles 19 are fixedly installed on the upper surface of the screening plate 18. Multiple discharge pipes 20 communicating with the outside are fixedly installed on the inner bottom wall of the screening frame 12. Two baffles 21 are fixedly installed on the upper surface of the conveying frame 1. A limiting port that cooperates with the multiple discharge pipes 20 is opened on the outer wall of one of the baffles 21.

[0026] In use, the conveyor frame 1 is stably supported by two support legs 2 at the bottom, ensuring the stability of the entire device during operation. The reversible motor 4 drives the connected conveyor rollers 3 to rotate. Since the conveyor belt 5 is installed on the outer wall of both conveyor rollers 3, the conveyor belt 5 will also rotate as the conveyor rollers 3 rotate. By controlling the forward and reverse rotation of the reversible motor 4, the rotation direction of the conveyor rollers 3 can be changed, thereby realizing the forward or reverse conveying of the conveyor belt 5 to meet different production needs. The two baffles 21 on the upper end of the conveyor frame 1 prevent the crop particles from falling from both sides of the conveyor belt 5. Then, the crop particles are placed... On the screening plate 18, the connecting frame 7 is fixed to the outer wall of the conveying frame 1 by the connecting plate 6, providing a stable installation base for the screening structure. The rotating motor 15 is fixed to the outer wall of the connecting frame 7 by the support plate 14. The rotating motor 15 drives the cam 16 to rotate. During the rotation, the cam 16 will periodically squeeze the squeezing groove of the squeezing block 13. When the cam 16 squeezes the squeezing block 13, the squeezing block 13 drives the slider 10 connected to it to overcome the elastic force of the spring 11 and slide along the direction of the slide rod 8 and the stabilizing rod 9. Since the screening frame 12 is fixedly installed on the upper surface of the two sliders 10, the sliding of the slider 10 will drive the screening frame 12 to perform reciprocating linear motion.

[0027] As the screening frame 12 reciprocates, the crop particles jump and tumble on the screening plate 18. Impurities smaller than the mesh size of the screening plate 18 will fall through the mesh. Multiple discharge pipes 20 fixedly installed on the inner bottom wall of the screening frame 12 are connected to the outside. The fallen impurities are discharged through the discharge pipes 20. The limiting port on the outer wall of one of the baffles 21 cooperates with the multiple discharge pipes 20 to ensure the accuracy of the direction of the discharge pipes 20 in discharging impurities and prevent impurities from splashing onto the conveyor belt 5. Two handles 19 fixed on the upper end face of the screening plate 18 make it convenient for operators to remove the screening plate 18 from the screening frame 12, which facilitates cleaning of the screening plate 18 or replacement with screening plates 18 of different aperture sizes to meet the screening needs of different crop particles.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A crop grain screening and reverse conveying device comprising a conveying frame (1), characterized in that, The bottom wall of the conveying frame (1) is fixedly installed with two supporting legs (2), the inside of the conveying frame (1) is rotatably installed with two conveying rollers (3), the outer wall of one of the conveying rollers (3) is fixedly installed with a reversible motor (4), the outer walls of the two conveying rollers (3) are jointly installed with a conveying belt (5), the outer wall of the conveying frame (1) is fixedly installed with a connecting frame (7) through a connecting mechanism, the inner wall of the connecting frame (7) is fixedly installed with a sliding rod (8), the outer wall of the sliding rod (8) is slidably installed with two sliding blocks (10) through a stabilizing mechanism, the outer walls of the two sliding blocks (10) are both connected with the inner wall of the connecting frame (7) through an elastic mechanism, the upper end faces of the two sliding blocks (10) are jointly fixedly installed with a screening frame (12), the outer wall of one of the sliding blocks (10) is fixedly installed with an extrusion block (13), the outer wall of the extrusion block (13) is provided with an extrusion groove, the outer wall of the connecting frame (7) is fixedly installed with a rotating motor (15) through a supporting mechanism, the output shaft of the rotating motor (15) is fixedly installed with a cam (16), the inner wall of the screening frame (12) is slidably installed with a screening plate (18) through a fixing mechanism, the upper end face of the screening plate (18) is fixedly installed with two handles (19), the inner bottom wall of the screening frame (12) is fixedly installed with a plurality of discharge pipes (20) in communication with the outside, the upper end face of the conveying frame (1) is fixedly installed with two baffle plates (21), the outer wall of one of the baffle plates (21) is provided with a limiting opening matched with the plurality of discharge pipes (20).

2. A crop grain screening and reverse conveying apparatus according to claim 1, wherein, The connecting mechanism comprises a connecting plate (6) fixedly installed on the outer wall of the conveying frame (1), and the outer wall of the connecting plate (6) is fixedly connected with the bottom wall of the connecting frame (7).

3. A crop grain screening and reverse conveying apparatus according to claim 2, wherein, The stabilizing mechanism comprises a stabilizing rod (9) fixedly installed in the inside of the connecting frame (7), and the stabilizing rod (9) slidably penetrates through the two sliding blocks (10).

4. A crop grain screening and reverse conveying apparatus according to claim 3, wherein, The elastic mechanism comprises a spring (11) installed on the outer wall of the sliding rod (8), and the two ends of the spring (11) are elastically connected with the outer wall of the sliding block (10) and the inner wall of the connecting frame (7) respectively.

5. A crop grain screening and reverse conveying apparatus according to claim 4, wherein, The supporting mechanism comprises a supporting plate (14) fixedly installed on the outer wall of the connecting frame (7), and the rotating motor (15) is fixedly installed on the bottom wall of the supporting plate (14).

6. A crop grain screening and reverse conveying apparatus according to claim 5, wherein, The fixing mechanism comprises a fixing plate (17) fixedly installed on the inner walls of the two sides of the screening frame (12), and the screening plate (18) is slidably installed on the upper end faces of the two fixing plates (17).

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