A harvester grain transfer device

Abstract

The utility model relates to the technical field of harvester, put forward a kind of harvester grain transmission device, it include: U-shaped frame;Two groups of connecting components are fixedly connected in the inner wall of U-shaped frame, the surface of connecting component is equipped with screening net, both sides of screening net are fixedly connected with sponge strip. The fan in the wind selection shell two starts, produces the strong hot air current upwards, airflow penetrates the seed layer falling, wherein the light impurities (such as hair, light velvet, residual chaff) left are carried upwards by airflow, in addition, the power component in the wind selection shell one starts, fan runs, produces suction airflow, airflow is heated after heating wire, from side to the seed on the surface of screening net, the dry seed with lighter specific gravity, small chaff etc. are blown up by airflow, full seed is heavy, continue to stay on screen surface and accept vibrating screen, until from the end slide, and impurities are blown to the guide shell welded on connecting plate, its lower discharge port can be connected with hose, realize the directional delivery of impurities.

Description

Technical Field

[0001] This utility model relates to the field of harvester technology, and specifically to a grain conveying device for a harvester. Background Technology

[0002] The grain conveying device of a harvester, often referred to as a "grain bin conveying system" or "grain unloading system," has the core task of transporting threshed grains into a grain bin and, when necessary, discharging the grains from the bin onto a grain transport vehicle at high speed via an unloading auger. The entire grain conveying path can be viewed as a "three-stage conveying system": a horizontal grain collecting auger (primary conveying), a vertical elevator (core conveying), and a grain bin and unloading auger (storage and final conveying). In existing technologies, impurities in the harvested grains are not effectively removed. The small, broken stalks and husks provide better hiding places for harmful insects (such as rice weevils, corn weevils, and moths), leading to pest infestations. Furthermore, the organic impurities in the small, broken stalks and husks are more hygroscopic than the grains themselves, absorbing more moisture from the environment and forming "damp hotspots" within the grain pile. Therefore, a new grain conveying device for a harvester is proposed. Summary of the Invention

[0003] This utility model proposes a grain conveying device for a harvester, which solves the problem in related technologies where impurities in the harvested grains are not effectively cleaned, and the small-volume broken stalks and husks provide better hiding places for harmful insects (such as rice weevils, corn weevils, moths, etc.), leading to pest infestations.

[0004] The technical solution of this utility model is as follows: a grain conveying device for a harvester, comprising: a U-shaped frame; The inner wall of the U-shaped frame is fixedly connected with two sets of connecting components. The surface of the connecting components is provided with a screen. Both sides of the screen are fixedly connected with sponge strips. One side of the screen is provided with a vibrating element. The bottom of the U-shaped frame is provided with multiple sets of supporting components. The side surface of the U-shaped frame is provided with a first air separator shell, and the bottom of the U-shaped frame is provided with a second air separator shell. Power components are provided inside the first and second air separator shells.

[0005] Optionally, the connecting component includes a fixed plate and multiple sets of elastic connectors fixedly connected to the surface of the fixed plate.

[0006] Optionally, the elastic connector includes a fixed shell disposed on the surface of the fixed plate, a spring fixedly connected to the inner wall of the fixed shell, and a connecting block fixedly connected to one end of the spring; The connecting block is connected to the screening mesh.

[0007] Optionally, the vibrating element includes a vibrating block disposed on one side of the screening screen and a vibrating motor fixedly connected to one side of the vibrating block.

[0008] Optionally, the power component includes a mounting frame, multiple fans fixedly connected inside the mounting frame, a filter screen, and a dustproof screen; Heating wires are fixedly connected to the inner walls of both the first and second air separator shells.

[0009] Optionally, one end of the U-shaped frame is provided with a guide plate that matches the screening screen, and the inner surface of the U-shaped frame is fixedly connected with a filter screen that matches the second air separator shell.

[0010] Optionally, the support member includes a support column fixedly connected to the bottom of the U-shaped frame and a connecting piece fixedly connected to one end of the support column; The surface of the connecting piece is provided with through holes.

[0011] Optionally, the outer surface of the U-shaped frame is provided with a connecting plate, and the outer surface of the U-shaped frame is provided with multiple threaded grooves. Bolts are threadedly connected to the inner wall of the threaded grooves. A flow guide shell is fixedly connected to the surface of the connecting plate, and a discharge port is provided on the lower surface of the flow guide shell.

[0012] The working principle and beneficial effects of this utility model are as follows: This application has a reasonable structure. When the blower inside the second air separator is activated, it generates a strong upward hot airflow. The airflow penetrates the falling grain layer, and the remaining light impurities (such as hair, lint, and residual husks) are carried upward by the airflow. In addition, the power component inside the first air separator is activated, and the blower runs to generate an intake airflow. After being heated by the heating wire, the airflow is blown from the side onto the grains on the screening screen surface. The lighter shriveled grains and small husks are blown up by the airflow, while the full grains, due to their greater weight, continue to remain on the screen surface to be vibrated and screened until they slide off from the end. The impurities are blown away by the guide shell welded to the connecting plate. The discharge port at the bottom of the guide shell can be connected to a hose to realize the directional transportation of impurities. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 3 This is a cross-sectional view of the U-shaped frame in this utility model; Figure 4 This is a partial cross-sectional view of the second type of the stroke selection shell of this utility model; In the diagram: 1. U-shaped frame; 2. Air separator shell one; 3. Filter screen; 4. Support column; 5. Connecting plate; 6. Guide shell; 7. Screening screen; 8. Sponge strip; 9. Fixing plate; 10. Fixing shell; 11. Spring; 12. Connecting block; 13. Filter screen; 14. Air separator shell two; 15. Dustproof net; 16. Connecting plate; 17. Bolt; 18. Guide plate; 19. Vibrating block; 20. Vibrating motor; 21. Mounting frame; 22. Fan; 23. Heating wire. Detailed Implementation

[0015] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0016] Example 1 Please see Figure 1 - Figure 4 The present invention provides a grain conveying device for a harvester, comprising: a U-shaped frame 1; The inner wall of the U-shaped frame 1 is fixedly connected with two sets of connecting parts. The surface of the connecting parts is provided with a screen 7. Both sides of the screen 7 are fixedly connected with sponge strips 8. One side of the screen 7 is provided with a vibrating element. The bottom of the U-shaped frame 1 is provided with multiple sets of supporting parts. The side surface of the U-shaped frame 1 is provided with a first air separator shell 2, and the bottom of the U-shaped frame 1 is provided with a second air separator shell 14. Power components are provided inside the first air separator shell 2 and the second air separator shell 14.

[0017] Furthermore, the connecting component includes a fixed plate 9 and multiple sets of elastic connecting members fixedly connected to the surface of the fixed plate 9. The elastic connecting members include a fixed shell 10 disposed on the surface of the fixed plate 9, a spring 11 fixedly connected to the inner wall of the fixed shell 10, and a connecting block 12 fixedly connected to one end of the spring 11. Connecting block 12 is connected to screening screen 7.

[0018] Specifically, the connecting block 12 is fixedly connected to the screening screen 7 by welding or bolts. The spring 11 provides elastic support inside the fixed shell 10, enabling the screening screen 7 to perform multi-degree-of-freedom buffering movements and effectively reducing vibration transmission. The fixing plate 9 is fixed to the inner wall of the U-shaped frame 1 by welding or bolts, providing a stable installation foundation for the entire connecting component.

[0019] Furthermore, the vibrating component includes a vibrating block 19 disposed on one side of the screening screen 7 and a vibrating motor 20 fixedly connected to one side of the vibrating block 19.

[0020] Specifically, after the vibrating motor 20 is powered on, it generates high-frequency vibration, which is transmitted to the screening screen 7 through the vibrating block 19. This vibration causes the grains on the screening screen 7 to jump, promoting the screening process and preventing the screen from clogging. The vibrating block 19 adopts a counterweight design to optimize the vibration effect and energy consumption.

[0021] Furthermore, the power components include a mounting frame 21, multiple fans 22 fixedly connected inside the mounting frame 21, a filter screen 3, and a dustproof screen 15; Heating wires 23 are fixedly connected to the inner walls of both air separator shell 11 and air separator shell 214.

[0022] Specifically, when the fan 22 is working, it generates directional airflow. When the weather is humid, the heating wire 23 heats the airflow. The filter screen 3 and the dustproof screen 15 are installed at the air inlets of the first air separator shell 2 and the second air separator shell 14, respectively, to effectively filter impurities in the air. The mounting frame 21 is fixed inside the air separator shell with bolts to provide a stable mounting platform for the fan group.

[0023] Furthermore, one end of the U-shaped frame 1 is provided with a guide plate 18 that matches the screening screen 7, and the inner surface of the U-shaped frame 1 is fixedly connected with a filter screen 13 that matches the air separator shell 14.

[0024] Specifically, the guide plate 18 is installed at an angle inside the end of the U-shaped frame 1 to guide the flow of the grains, and the filter screen 13 is installed on the bottom surface inside the U-shaped frame 1 to allow airflow but block the grains from falling. This design achieves gas-solid separation and ensures the purity of grain collection.

[0025] Furthermore, the support includes a support column 4 fixedly connected to the bottom of the U-shaped frame 1 and a connecting piece 5 fixedly connected to one end of the support column 4; The surface of the connecting piece 5 has an insertion hole.

[0026] Specifically, the support column 4 is connected to the bottom of the U-shaped frame 1 by welding to provide the main support force. The through holes on the connecting piece 5 can be used for bolt fixing, so that the entire device can be stably installed on the work site. Multiple sets of support components work together to ensure the stability of the equipment during operation.

[0027] Example 2 Based on Embodiment 1, this embodiment includes: a connecting plate 16 is provided on the outer surface of the U-shaped frame 1, a plurality of threaded grooves are provided on the outer surface of the U-shaped frame 1, bolts 17 are threadedly connected to the inner wall of the threaded grooves, a flow guide shell 6 is fixedly connected to the surface of the connecting plate 16, and a discharge port is provided on the lower surface of the flow guide shell 6.

[0028] Specifically, the connecting plate 16 is fixed to the outer surface of the U-shaped frame 1 by bolts 17, and the installation position can be adjusted as needed. The guide shell 6 is welded to the connecting plate 16, and its lower discharge port can be connected to a hose to realize the directional conveying of impurities. This modular design is easy to install and maintain.

[0029] The workflow for this application is as follows: Step 1: Material introduction and initial loading After harvesting, the grain mixture containing impurities (such as broken stems and husks) is conveyed into the U-shaped frame 1 by a conveying device and evenly spread on the screen surface of the screening net 7. Step 2: Vibration screening and size separation The vibration motor 20 starts and transmits high-frequency vibration to the entire screening screen 7 through the vibration block 19. Under the action of vibration: impurities smaller than the screen (such as fine sand and small dust particles) are screened out and fall into the filter screen 13 at the bottom of the U-shaped frame 1, while grains and larger light impurities (such as broken stems and husks) bounce continuously under the action of vibration and move forward along the screen surface. The elastic connecting parts (fixed shell 10, spring 11, connecting block 12) provide elastic support, amplify the vibration effect and protect the frame structure. The sponge strip 8 ensures that the two sides of the screen are sealed to prevent grain leakage. Step 3: Primary Wind Selection The blower 22 inside the air separator shell 14 starts, generating a strong upward hot airflow. The airflow penetrates the falling grain layer, and the remaining light impurities (such as hair, velvet, and residual husks) are carried upward by the airflow. Step 4: Secondary air separation and final purification When the power components inside the air separator shell 2 are activated, the blower 22 runs and generates an intake airflow. After being heated by the heating wire 23, the airflow is blown from the side onto the grains on the surface of the screening screen 7. Lighter shriveled grains and small husks are blown up by the airflow, while plump grains, due to their greater weight, continue to remain on the screen surface to be vibrated and screened until they slide off from the end. Impurities are blown into the guide shell 6, which is welded to the connecting plate 16. Its lower discharge port can be connected to a hose to realize the directional transport of impurities. Step 5: Clean grain collection and output The clean grains that have completed all purification steps fall through the guide plate 18 to the vertical elevator, and are then transported by the vertical elevator to the grain bin and unloading auger.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. 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 grain conveying device for a harvester, characterized in that, include: U-shaped frame (1); The inner wall of the U-shaped frame (1) is fixedly connected with two sets of connecting parts. The surface of the connecting parts is provided with a screen (7). Both sides of the screen (7) are fixedly connected with sponge strips (8). One side of the screen (7) is provided with a vibrating element. The bottom of the U-shaped frame (1) is provided with multiple sets of supporting parts. The side surface of the U-shaped frame (1) is provided with a first air separator shell (2), and the bottom of the U-shaped frame (1) is provided with a second air separator shell (14). The first air separator shell (2) and the second air separator shell (14) are provided with power components inside.

2. The grain conveying device for a harvester according to claim 1, characterized in that: The connecting component includes a fixed plate (9) and multiple sets of elastic connectors fixedly connected to the surface of the fixed plate (9).

3. The grain conveying device for a harvester according to claim 2, characterized in that: The elastic connector includes a fixed shell (10) disposed on the surface of the fixed plate (9), a spring (11) fixedly connected to the inner wall of the fixed shell (10), and a connecting block (12) fixedly connected to one end of the spring (11). The connecting block (12) is connected to the screening mesh (7).

4. The grain conveying device for a harvester according to claim 1, characterized in that: The vibrating component includes a vibrating block (19) disposed on one side of the screening screen (7) and a vibrating motor (20) fixedly connected to one side of the vibrating block (19).

5. A grain conveying device for a harvester according to claim 1, characterized in that: The power components include a mounting frame (21), multiple fans (22) fixedly connected inside the mounting frame (21), a filter screen (3) and a dustproof screen (15); Heating wires (23) are fixedly connected to the inner walls of both the first air separator shell (2) and the second air separator shell (14).

6. The grain conveying device for a harvester according to claim 1, characterized in that: One end of the U-shaped frame (1) is provided with a guide plate (18) that matches the screening screen (7), and the inner surface of the U-shaped frame (1) is fixedly connected with a filter screen (13) that matches the air separator shell (14).

7. A grain conveying device for a harvester according to claim 1, characterized in that: The support includes a support column (4) fixedly connected to the bottom of the U-shaped frame (1) and a connecting piece (5) fixedly connected to one end of the support column (4). The surface of the connecting piece (5) is provided with an insertion hole.

8. A grain conveying device for a harvester according to claim 1, characterized in that: The outer surface of the U-shaped frame (1) is provided with a connecting plate (16), and the outer surface of the U-shaped frame (1) is provided with multiple threaded grooves. The inner wall of the threaded groove is threaded with bolts (17). The surface of the connecting plate (16) is fixedly connected with a flow guide shell (6), and the lower surface of the flow guide shell (6) is provided with a discharge port.

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