A material conveying vibration plate device under an axial flow drum

Abstract

This utility model relates to a material conveying and shaking plate device under an axial flow drum, belonging to the technical field of agricultural machinery. It solves the problems of existing technologies lacking the function of separating grains and impurities, as well as the problems of material accumulation and blockage. It includes: a fan, two front swing arms, a stepped shaking plate, and two rear swing arms. The fan is installed in front of the stepped shaking plate, with its outlet blowing air towards it. The lower ends of the two front swing arms are respectively installed on both sides of the front end of the stepped shaking plate, hinged to it, and the upper shafts of the two front swing arms are fixed. The upper ends of the two rear swing arms are respectively installed on both sides of the rear end of the stepped shaking plate, hinged to it, and the middle shaft of the two rear swing arms is fixed. After installation, the stepped shaking plate can swing back and forth, and the lower ends of the two rear swing arms are the power input points. This utility model is applied under the axial flow drum of a harvester, enabling forward material conveying and preliminary cleaning.

Description

Technical Field

[0001] This utility model relates to the technical field of agricultural machinery, and in particular to a material conveying vibration plate device under an axial flow drum. Background Technology

[0002] In the threshing system of a combine harvester, the axial flow drum is a core component. A conveyor plate is typically installed below it to receive the material discharged from the axial flow drum (including grains, straw fragments, chaff, etc.) and transport the material forward to the cleaning system. Existing conveyor plate devices generally suffer from the following problems:

[0003] 1. It only has a single material conveying function and lacks a design to separate grains from impurities, resulting in all grains and impurities being conveyed to the cleaning system, increasing the cleaning load.

[0004] 2. Materials are prone to accumulation and blockage during the conveying process, especially in humid or high-production environments, resulting in low conveying efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, such as the lack of grain-to-impurity separation and the tendency for materials to accumulate and clog, this invention aims to provide a material conveying vibrating plate device below an axial flow drum. This invention provides a simple, forward-conveying vibrating plate with grain-to-impurity separation capabilities, enabling preliminary separation of grains and impurities, reducing subsequent cleaning pressure, and improving the cleaning efficiency of the harvester.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A material conveying and vibrating plate device under an axial flow drum includes: a fan 1, two front swing arms 2, a stepped vibrating plate 3, and two rear swing arms 4. The fan 1 is mounted on the main body of a harvester and is located in front of the stepped vibrating plate 3. The air outlet 11 of the fan 1 faces the stepped vibrating plate 3. The stepped vibrating plate 3 is hinged to the main body of the harvester through the two front swing arms 2 and the two rear swing arms 4. The two front swing arms 2 are symmetrically arranged left and right, and the two rear swing arms 4 are symmetrically arranged left and right. The stepped vibrating plate 3, the front swing arms 2, the rear swing arms 4, and the main body of the harvester form a four-bar linkage mechanism. The stepped vibrating plate 3 is provided with multiple stepped surfaces 31 that gradually increase from front to back.

[0008] It also includes a drive mechanism, which is used to drive the stepped shaking plate 3 to perform shaking motion.

[0009] Furthermore, the upper end of each front swing arm 2 is hinged to the main body of the harvester, and the lower end of each front swing arm 2 is hinged to the left / right side of the front end of the stepped shaking plate 3; the middle part of each rear swing arm 4 is hinged to the main body of the harvester, and the upper end of each rear swing arm 4 is hinged to the left / right side of the rear end of the stepped shaking plate 3; the drive mechanism is connected to the lower ends of the two rear swing arms 4, and the drive mechanism is used to drive the rear swing arms 4 to rotate around their middle parts.

[0010] Furthermore, the stepped shaking plate 3 includes two side plates 32 and multiple stepped plates 33. The two side plates 32 are arranged symmetrically on the left and right, and multiple stepped plates 33 are connected between the two side plates 32. The upper surface of each stepped plate 33 is a stepped surface 31, and the multiple stepped plates 33 together form a stepped structure that gradually rises from front to back.

[0011] Furthermore, all of the stepped surfaces 31 are inclined, with the rear end of any stepped surface 31 being higher than its front end.

[0012] Furthermore, the plurality of the stepped plates 33 are arranged in parallel to each other.

[0013] Furthermore, the stepped plate 33 is provided with a plurality of guide grooves 331 evenly spaced along the left and right directions.

[0014] Furthermore, the two front swing arms 2 are respectively mounted on the two side plates 32; the two rear swing arms 4 are mounted on the two side plates 32 separately.

[0015] Furthermore, the stepped vibration plate 3 also includes two guide plates 34, with one guide plate 34 installed at the upper end of each side plate 32; the two guide plates 34 are arranged symmetrically on the left and right.

[0016] Because this utility model employs the aforementioned technology, it has the following positive effects compared to existing technologies:

[0017] (1) This utility model achieves forward material conveying through an inclined stepped shaking plate, and effectively separates impurities with the help of a blower, thereby reducing subsequent cleaning pressure and improving cleaning efficiency. Specifically, the stepped shaking plate is provided with multiple stepped plates, which together form a stepped structure that gradually rises from front to back. During operation, the stepped structure can extend the material conveying stroke, allowing the material to be fully dispersed under the action of shaking and airflow, thereby significantly improving the blower's efficiency in separating impurities. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a material conveying vibrating plate device under an axial flow drum according to this utility model;

[0019] Figure 2This is a side view of a material conveying and shaking plate device under an axial flow drum according to this utility model.

[0020] In the attached diagram: 1. Fan; 11. Air outlet; 2. Front swing arm; 3. Stepped vibration plate; 31. Stepped surface; 32. Side plate; 33. Stepped plate; 331. Guide channel; 34. Guide plate; 4. Rear swing arm. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0022] Please refer to Figure 1 and Figure 2 The diagram illustrates a material conveying vibrating plate device below an axial flow drum, comprising: a fan 1, two front swing arms 2, a stepped vibrating plate 3, and two rear swing arms 4. The fan 1 is mounted on the main body of a harvester, positioned in front of the stepped vibrating plate 3. The stepped vibrating plate 3 is located below the axial flow drum of the harvester. The air outlet 11 of the fan 1 faces the stepped vibrating plate 3, and the airflow generated by the fan 1 blows towards the front end of the stepped vibrating plate 3. The stepped vibrating plate 3 is hinged to the main body of the harvester via the two front swing arms 2 and the two rear swing arms 4. The two front swing arms 2 are symmetrically arranged left and right, and the two rear swing arms 4 are symmetrically arranged left and right. The stepped vibrating plate 3, the front swing arms 2, the rear swing arms 4, and the main body of the harvester form a four-bar linkage mechanism. The stepped vibrating plate 3 is provided with multiple stepped surfaces 31 that gradually increase from front to back. The diagram also includes a drive mechanism for driving the stepped vibrating plate 3 to perform a vibrating motion. During operation, the material discharged from the axial flow drum continuously falls onto the stepped shaking plate 3. The material falling onto the stepped shaking plate 3 undergoes continuous turbulent motion and is conveyed forward. During this process, the airflow generated by the blower 1 acts on the material between the axial flow drum and the stepped shaking plate 3, blowing impurities towards the rear of the stepped shaking plate 3, thus achieving preliminary screening. The material that has undergone preliminary screening flows out from the front end of the stepped shaking plate 3 and enters the cleaning system for further screening.

[0023] Furthermore, in a preferred embodiment, the upper end of each front swing arm 2 is hinged to the main body of the harvester, and the axis at each hinge point is fixed. The lower end of each front swing arm 2 is hinged to the left / right side of the front end of the stepped shaking plate 3. The middle part of each rear swing arm 4 is hinged to the main body of the harvester, and the axis at each hinge point is fixed. The upper end of each rear swing arm 4 is hinged to the left / right side of the rear end of the stepped shaking plate 3. A drive mechanism is connected to the lower ends of the two rear swing arms 4. The drive mechanism is used to drive the rear swing arms 4 to rotate around their middle parts. The lower ends of the two rear swing arms 4 are the power input points, and the stepped shaking plate 3 can swing back and forth under power drive. When the drive mechanism is started, it applies a reciprocating force to the bottom ends of the two rear swing arms 4. At this time, the rear swing arms 4 will rotate around the hinge point between their middle parts and the main body of the harvester as the axis. As the rear swing arms 4 rotate, their upper ends will drive the stepped shaking plate 3 to move. At the same time, the movement of the stepped shaking plate 3 will trigger the movement of the two front swing arms 2, causing the front swing arms 2 to rotate around the hinge point between their upper ends and the main body of the harvester. Through this series of linkages, the reciprocating motion of the stepped shaking plate 3 is ultimately achieved.

[0024] Furthermore, in a preferred embodiment, the drive mechanism includes a power output source and a transmission mechanism, wherein the output end of the power output source is connected to the lower ends of the two rear swing arms 4 through a transmission mechanism with a linkage structure.

[0025] Furthermore, in a preferred embodiment, the stepped shaking plate 3 includes two side plates 32 and multiple stepped plates 33. The two side plates 32 are symmetrically arranged from left to right, and the multiple stepped plates 33 are connected between the two side plates 32. The upper surface of each stepped plate 33 is a stepped surface 31, and the multiple stepped plates 33 together form a stepped structure that gradually rises from front to back. The two side plates 32 serve to connect the multiple stepped plates 33, and the two side plates 32 can reduce the discharge of material from both sides.

[0026] Furthermore, in a preferred embodiment, the plurality of stepped surfaces 31 are all inclined, with the rear end of any stepped surface 31 being higher than its front end; the angle between the stepped surface 31 and the horizontal plane is an acute angle. The inclined stepped plate 33 facilitates the flow of material on the stepped plate 33 towards the front end by gravity.

[0027] Furthermore, in a preferred embodiment, multiple stepped plates 33 are arranged in parallel to each other, making the material conveying speed more uniform.

[0028] Furthermore, in a preferred embodiment, the stepped plate 33 is provided with a plurality of guide grooves 331 evenly spaced along the left-right direction. The plurality of guide grooves 331 make the material falling on the stepped plate 33 more evenly distributed, prevent local accumulation of material, and make the transmission smoother.

[0029] Furthermore, in a preferred embodiment, the two front swing arms 2 are respectively mounted on the two side plates 32; the two rear swing arms 4 are mounted on the two side plates 32 on opposite sides.

[0030] Furthermore, in a preferred embodiment, the rear end of the step plate 33 extends below the front end of the adjacent step plate 33 behind it. This structural design ensures that materials can smoothly slide from the current step plate 33 onto the adjacent step plate 33 in front of it, realizing a continuous material conveying process.

[0031] Furthermore, in a preferred embodiment, an air outlet channel is provided between any two adjacent stepped plates 33, so that impurities can be discharged from the air outlet channel when the fan 1 is working.

[0032] Furthermore, in a preferred embodiment, the stepped shaking plate 3 further includes two guide plates 34, with one guide plate 34 installed at the upper end of each side plate 32; the two guide plates 34 are arranged symmetrically on the left and right; the two guide plates 34 extend outward from the two side plates 32 respectively; when the stepped shaking plate 3 is working, it can reduce the discharge of material from both sides.

[0033] Work process:

[0034] During normal operation, the harvester drives the impeller of the blower 1 to rotate, and a uniform and constant airflow is blown from the outlet 11 of the blower 1 towards the stepped vibrating plate 3. Simultaneously, the harvester drives the lower end of the rear swing arm 4. The hinge axis between the lower end of the front swing arm 2 and the stepped vibrating plate 3, the fixed axis at the upper end of the front swing arm 2, the hinge axis between the upper end of the rear swing arm 4 and the stepped vibrating plate 3, and the fixed axis in the middle of the rear swing arm 4 form a four-bar linkage, which drives the stepped vibrating plate 3 to reciprocate. When the material discharged from the axial flow drum falls onto the stepped vibrating plate 3, some of the impurities in the material are blown away by the airflow from the blower 1. When the material falls onto the stepped vibrating plate 3, the reciprocating motion of the stepped vibrating plate 3 causes the material to jump forward and upward, and some of the impurities in the material are further blown away by the airflow from the blower 1. When the material is conveyed to the step of the stepped vibrating plate 3, it falls freely to the next step. At this time, some of the impurities in the material will be blown away by the airflow from the blower 1 until the material is conveyed to the very front of the stepped vibrating plate 3. Throughout this entire process, the impurities in the material are continuously blown away by the airflow from the blower 1. Finally, the relatively clean material falls into the cleaning system for further cleaning, improving cleaning efficiency and grain cleanliness.

[0035] This invention relates to a vibrating plate device applied below the axial flow drum of a harvester, which enables forward material conveying and separation of grains and impurities. This invention combines efficient conveying and separation functions, improving the harvester's cleaning efficiency. During the forward conveying of material on the stepped vibrating plate 3, this invention, in conjunction with the blower 1, separates impurities, reducing subsequent cleaning pressure and improving cleaning efficiency.

[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the implementation methods and protection scope of the present utility model. Those skilled in the art should realize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A material conveying vibrating plate device below an axial flow drum, characterized in that: The harvester includes a fan (1), two front swing arms (2), a stepped shaking plate (3), and two rear swing arms (4). The fan (1) is mounted on the main body of the harvester and is located in front of the stepped shaking plate (3). The air outlet (11) of the fan (1) faces the stepped shaking plate (3). The stepped shaking plate (3) is hinged to the main body of the harvester through the two front swing arms (2) and the two rear swing arms (4). The two front swing arms (2) are symmetrically arranged on the left and right, and the two rear swing arms (4) are symmetrically arranged on the left and right. The stepped shaking plate (3), the front swing arms (2), the rear swing arms (4), and the main body of the harvester form a four-bar linkage. The stepped shaking plate (3) is provided with multiple stepped surfaces (31) that gradually increase from front to back. It also includes a drive mechanism for driving the stepped shaking plate (3) to perform shaking motion.

2. The material conveying vibrating plate device below the axial flow drum according to claim 1, characterized in that: The upper end of each front swing arm (2) is hinged to the main body of the harvester, and the lower end of each front swing arm (2) is hinged to the left / right side of the front end of the stepped shaking plate (3); the middle part of each rear swing arm (4) is hinged to the main body of the harvester, and the upper end of each rear swing arm (4) is hinged to the left / right side of the rear end of the stepped shaking plate (3); the drive mechanism is connected to the lower end of the two rear swing arms (4), and the drive mechanism is used to drive the rear swing arms (4) to rotate around the middle part.

3. The material conveying vibrating plate device below the axial flow drum according to claim 1, characterized in that: The stepped shaking plate (3) includes two side plates (32) and multiple stepped plates (33). The two side plates (32) are arranged symmetrically on the left and right, and multiple stepped plates (33) are connected between the two side plates (32). The upper surface of each stepped plate (33) is a stepped surface (31), and the multiple stepped plates (33) together form a stepped structure that gradually rises from front to back.

4. The material conveying vibrating plate device below the axial flow drum according to claim 1 or 3, characterized in that: The multiple stepped surfaces (31) are all inclined, and the rear end of any stepped surface (31) is higher than its front end.

5. The material conveying vibration plate device below the axial flow drum according to claim 3, characterized in that: Multiple stepped plates (33) are arranged in parallel to each other.

6. The material conveying vibration plate device below the axial flow drum according to claim 3, characterized in that: The stepped plate (33) is provided with a plurality of guide grooves (331) evenly spaced along the left and right directions.

7. The material conveying vibration plate device below the axial flow drum according to claim 3, characterized in that: The two front swing arms (2) are respectively mounted on the two side plates (32); the two rear swing arms (4) are mounted on the two side plates (32) on opposite sides.

8. The material conveying vibration plate device below the axial flow drum according to claim 3, characterized in that: The stepped shaking plate (3) also includes two guide plates (34), with one guide plate (34) installed at the upper end of each side plate (32); the two guide plates (34) are arranged symmetrically on the left and right.

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