Lying type stepped screen box of peanut picking harvester

Abstract

The utility model relates to the technical field of agricultural machinery equipment, in particular to a lying type stepped screen box of a peanut picking harvester, which comprises a positioning frame, a front baffle plate, a material receiving plate, a screening component and a side baffle plate, the screening assembly is used for supporting and fixing the base plate and comprises the base plate connected with the positioning frame, a plurality of screening plates distributed in a stepped mode in the length direction of the base plate are formed on the base plate in a bending mode, and compared with an existing lying flat plate screen, the screening plates distributed in the mode can enable materials to be better conveyed to the rear end. And in the conveying process, the screening effect on dust and other small-particle-size impurities in the materials is enhanced through the gap between every two adjacent screening plates, meanwhile, due to the stepped distribution of the screening plates, the materials can be conveniently conveyed in the screening process, and the screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, specifically to a horizontal stepped sieve box for a peanut picking and harvesting machine. Background Technology

[0002] In agricultural production, peanuts are an important cash crop, and the degree of mechanization in their harvesting process directly affects production efficiency and costs. The emergence of peanut harvesting machines has greatly promoted the mechanization of peanut harvesting and reduced the labor intensity for farmers.

[0003] Existing peanut harvesters have limitations in material screening during operation. Traditional screen box structures are not ideal for removing small-sized impurities. Because small-sized impurities easily get trapped between peanut fruits, conventional screening methods are unable to effectively separate them. This not only affects the quality of the peanut product but may also cause inconvenience in subsequent processing.

[0004] Meanwhile, the material conveying process within the screen box also presents efficiency issues. Some screen box structures are unable to effectively push materials forward. For example, in horizontal flat screens, the material moves too slowly during screening and is prone to slippage, resulting in excessively long material dwell times within the screen box and frequent accumulation. This severely restricts the overall operational efficiency of peanut harvesters and fails to meet the demands of large-scale, high-efficiency agricultural production. Utility Model Content

[0005] To address the aforementioned issues, this utility model provides a horizontal stepped screen box for a peanut harvester, which enhances the screening effect on small-diameter impurities during the conveying process and also pushes the material forward, improving operational efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a horizontal stepped sieve box for a peanut picking and harvesting machine, comprising a positioning frame, a front baffle plate at the front end of the positioning frame, a receiving plate at the rear end, a screening component in the middle of the positioning frame, side baffle plates on both sides of the screening component on the positioning frame, the screening component comprising a base plate arranged along the length of the positioning frame, and sieve plates arranged in a stepped manner on the base plate.

[0007] As a further improvement to the above technical solution:

[0008] The screen plate includes an L-shaped screening section and a connecting section. The screening section is inclined and its height gradually increases along the material conveying direction.

[0009] The number of substrates is multiple and they are evenly distributed along the width direction of the positioning frame, and a partition is provided between two adjacent substrates.

[0010] The lower part of the partition is provided with a base plate connection, and the upper part is provided with serrated teeth.

[0011] The positioning frame includes two parallel support rods, and a cross brace located below the screening component is provided between the two support rods.

[0012] The receiving plate includes an inclined guide portion, the front end of which is provided with a positioning portion that fits against the side baffle, and the lower part of the positioning portion is provided with a mounting portion for connecting to the substrate.

[0013] The mounting part is detachably connected to the base plate, and the base plate is provided with a mounting plate for placing the mounting part.

[0014] The number of receiving plates is two, and they are symmetrically distributed about the center line of the positioning frame.

[0015] The beneficial effects of this utility model embodiment are as follows: The peanut picking and harvesting machine's horizontal stepped screen box includes a positioning frame, a front baffle, a receiving plate, a screening component, and a side baffle. The positioning frame includes two parallel support rods, and a cross brace located below the screening component is provided between the two support rods for supporting and fixing the base plate. The screening component includes a base plate connected to the positioning frame. Multiple screen plates are formed on the base plate by bending, arranged in a stepped manner along its length. This type of screen plate arrangement, compared with existing horizontal flat screens, allows for better conveying of materials (peanuts, peanut vines, and dust) to the rear end. Moreover, during the conveying process, the gap between two adjacent screen plates enhances the screening effect of removing dust and other small-diameter impurities from the material. At the same time, the stepped screen plate distribution facilitates the conveying of materials during screening, improving screening efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the positioning frame in this utility model;

[0018] Figure 3 This is a schematic diagram of the substrate structure in this utility model;

[0019] Figure 4 This is a schematic diagram of the material receiving plate in this utility model.

[0020] In the diagram: 1. Positioning frame; 2. Front baffle; 3. Receiving plate; 4. Screening assembly; 5. Side baffle; 6. Base plate; 7. Screen plate; 8. Screening section; 9. Connecting section; 10. Partition; 11. Actuating teeth; 12. Support rod; 13. Cross brace; 14. Guide section; 15. Positioning section; 16. Mounting section; 17. Mounting plate. Detailed Implementation

[0021] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0022] See Figures 1-2 This utility model discloses a horizontal stepped sieve box for a peanut picking harvester, including a positioning frame 1, a front baffle 2, a receiving plate 3, a screening component 4, and a side baffle 5.

[0023] The positioning frame 1 includes two parallel support rods 12, and a cross brace 13 located below the screening component 4 is provided between the two support rods 12 for supporting and fixing the base plate 6. The screening component 4 includes a base plate 6 connected to the positioning frame 1. Multiple screen plates 7 are formed on the base plate 6 by bending and are distributed in a stepped manner along its length. The screen plates 7 with this distribution method can better convey materials (peanuts, peanut vines, and dust) to the rear end compared with the existing horizontal flat screen. Moreover, during the conveying process, the gap between two adjacent screen plates 7 is used to enhance the screening effect of dust and other small-diameter impurities in the material. At the same time, the stepped distribution of the screen plates 7 can facilitate the conveying of materials during screening and improve screening efficiency.

[0024] like Figures 3-4 As shown, the screen plate 7 includes a screening section 8 and a connecting section 9 arranged in an L-shape. The screening section 8 is designed to be inclined and its vertical height gradually increases along the material conveying direction. The connecting section 9 is designed to be vertical and extends downward from the height of the screening section 8 to connect with the front end of the next screen plate 7, forming a height difference between the two screen plates 7, which facilitates the strengthening of the screening operation.

[0025] There are multiple substrates 6, which are evenly distributed along the width of the positioning frame 1. The substrates 6 are all distributed along the length of the positioning frame 1, and a partition 10 is provided between two adjacent substrates 6. The lower part of the partition 10 is connected to the substrate 6, and the upper part is provided with serrated actuating teeth 11, which are used to enhance the pushing effect on the peanut vines during the quantity conveying process, so as to facilitate the separation of peanut vines and peanut fruits.

[0026] The receiving plate 3 is installed above the screening component 4, and there are two of them symmetrically distributed around the center line of the positioning frame 1. Each receiving plate 3 includes an inclined guide part 14. The distance between the two guide parts 14 gradually decreases along the material conveying direction, which is used to gather the middle part of the material and facilitate material recycling. The front end of the guide part 14 is provided with a positioning part 15 that fits against the side baffle 5. The middle part of the positioning part 15 is provided with a mounting part 16 that is connected to the base plate 6. The base plate 6 is provided with a mounting plate 17 that is detachably connected to the mounting part 16 by bolts.

[0027] In use, a drive swing arm is connected to the outside of the side baffle 5. After the material (peanuts, peanut vines, and dust) falls onto the screen box, the screen box begins to swing as the drive swing arm operates. The material moves forward with the swing of the screen box. During the movement of the material, it passes through the stepped screen plate 7. Small particle impurities such as dust will fall from the screen holes during this process. The peanuts and peanut vines will continue to move backward with the screening components. A fan is installed at the rear end of the screen box to separate the peanut vines and peanuts.

[0028] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A horizontal stepped sieve box for a peanut picking harvester, comprising a positioning frame (1), characterized in that: The positioning frame (1) is provided with a front baffle (2) at the front end and a receiving plate (3) at the rear end. The positioning frame (1) is provided with a screening component (4) in the middle. The positioning frame (1) is provided with side baffles (5) on both sides of the screening component (4). The screening assembly (4) includes a base plate (6) arranged along the length of the positioning frame (1), and the base plate (6) is provided with screen plates (7) arranged in a stepped manner.

2. The horizontal stepped sieve box of the peanut harvester according to claim 1, characterized in that: The screen plate (7) includes a screening section (8) and a connecting section (9) arranged in an L-shape. The screening section (8) is inclined and its height gradually increases along the material conveying direction.

3. The horizontal stepped sieve box of the peanut harvester according to claim 1, characterized in that: The number of substrates (6) is multiple and they are evenly distributed along the width direction of the positioning frame (1), and a partition (10) is provided between two adjacent substrates (6).

4. The horizontal stepped sieve box of the peanut picking harvester according to claim 3, characterized in that: The lower part of the partition (10) is connected to the base plate (6), and the upper part is provided with actuating teeth (11) arranged in a sawtooth pattern.

5. The horizontal stepped sieve box of the peanut harvester according to claim 1, characterized in that: The positioning frame (1) includes two parallel support rods (12), and a cross brace (13) located below the screening component (4) is provided between the two support rods (12).

6. The horizontal stepped sieve box of the peanut picking harvester according to claim 1, characterized in that: The receiving plate (3) includes an inclined guide portion (14), the front end of the guide portion (14) is provided with a positioning portion (15) that fits against the side baffle (5), and the lower part of the positioning portion (15) is provided with a mounting portion (16) for connecting the base plate (6).

7. The horizontal stepped sieve box of the peanut picking harvester according to claim 6, characterized in that: The mounting part (16) is detachably connected to the base plate (6), and the base plate (6) is provided with a mounting plate (17) for placing the mounting part (16).

8. The horizontal stepped sieve box of the peanut picking harvester according to claim 6, characterized in that: The number of receiving plates (3) is two, and they are symmetrically distributed about the center line of the positioning frame (1).

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