Screening device for harvesting peas

Abstract

The utility model relates to the technical field of pea screening, and discloses a screening device for harvesting peas, which comprises a bottom frame, a screening box is mounted on the bottom frame, an inclined guide plate is arranged in the screening box, the highest point of the guide plate is connected with a first inner wall, and the lowest point of the guide plate is close to a second inner wall. The two sides, in the width direction, of the guide plates are connected with the two inner walls, in the width direction, of the screening box correspondingly, the multiple guide plates are arranged in the vertical direction in an array mode, the screening plates are arranged between every two adjacent guide plates and arranged in an inclined mode, the highest points of the screening plates are connected with the second inner wall, and the lowest points of the screening plates are connected with the first inner wall. The side, in the width direction, of each screening plate is connected with one inner wall, in the width direction, of the screening box, a gap exists between the other side, in the width direction, of each screening plate and the other inner wall, in the width direction, of the screening box, the multiple screening plates are correspondingly arranged, and the sizes of the gaps between the multiple screening plates and the screening box are gradually increased from bottom to top.

Description

Technical Field

[0001] The utility model relates to the technical field of pea screening, and particularly relates to a screening device for pea harvesting. Background Art

[0002] Peas are a kind of nutritious food materials. After pea harvesting, in order to grade the quality of peas, it is necessary to screen peas according to size. In the prior art, vibration is generally used to screen peas, that is, the peas are sieved by screens of different sizes. For example, the Chinese utility model patent with the authorization announcement number CN217830720U discloses a screening device for grading and screening pea raw materials, which uses the cooperation of through hole A on baffle A and through hole B on baffle B to realize the grading and screening of peas based on size classification. The essence of this screening method is similar to screen filtration. Peas with a size smaller than the through hole can pass through the through hole, and those with a size larger than the through hole remain on the baffle. However, peas are approximately spherical in shape, and it is very easy for peas with a size larger than the through hole to partially block the through hole. In this case, even if the baffle is arranged obliquely and there is vibration assistance, it is still very difficult for the peas to move along the baffle, so it is very easy for the peas to block the through hole, resulting in the subsequent screening being unable to proceed normally.

[0003] Based on the above, the utility model provides a screening device for pea harvesting. Summary of the Utility Model

[0004] To solve the problems mentioned in the above background, the utility model provides a screening device for pea harvesting.

[0005] To achieve the above technical purposes, the technical solutions adopted by the utility model are as follows.

[0006] A screening device for pea harvesting includes a chassis, a screening box is installed on the chassis, a box cover is fitted and installed at the upper opening of the screening box, a feeding hole is opened on the end face of the box cover, a hopper is installed at the upper hole of the feeding hole, and a guiding plate arranged obliquely is provided in the screening box;

[0007] The two inner walls of the screening box along the length direction are respectively named inner wall one and inner wall two. The highest point of the guiding plate is connected to inner wall one, and the lowest point is close to inner wall two. The two sides of the guiding plate along the width direction are respectively connected to the two inner walls of the screening box along the width direction, and a plurality of guiding plates are arranged in an array along the vertical direction;

[0008] A screening plate is arranged between two adjacent guide plates. The screening plate is inclined. The highest point of the screening plate is connected to the second inner wall, and the lowest point is connected to the first inner wall. One side of the screening plate in the width direction is connected to one inner wall of the screening box in the width direction, and there is a gap between the other side of the screening plate in the width direction and the other inner wall of the screening box in the width direction. A number of screening plates are correspondingly arranged, and the size of the gap between the screening plates and the screening box increases upward along the vertical direction.

[0009] As a further improvement and optimization of the present utility model, guide ribs are arranged on the upper surface of the screening plate. The guide ribs include a straight segment close to and parallel to the length direction of the gap. The lowest point of the straight segment is connected to the lowest point of the screening plate, and an inclined segment arranged obliquely extends from the highest point of the straight segment. The distance between the inclined segment and the straight segment increases along the length direction of the gap and in the direction from the lowest point to the highest point of the gap.

[0010] As a further improvement and optimization of the present utility model, a discharge port is opened on one side of the screening box connected to the lowest point of the screening plate. The peas guided and output by the screening plate can be output outward through the discharge port. A number of discharge ports are correspondingly arranged, and a storage basket is placed below each discharge port.

[0011] As a further improvement and optimization of the present utility model, a guide pipe arranged obliquely is further arranged on the side of the screening box provided with the discharge port. The highest point of the guide pipe is directly below the discharge port. A number of guide pipes are correspondingly arranged, and the lengths of the multiple guide pipes are different. The storage basket is placed below the lowest point of the corresponding guide pipe.

[0012] As a further improvement and optimization of the present utility model, a supporting bracket with different heights is arranged below the lowest point of the guide pipe, and the supporting bracket is used for placing the storage basket.

[0013] As a further improvement and optimization of the present utility model, a sliding plate is sleeved in the storage basket, and a spring is connected between the sliding plate and the bottom of the storage basket. Initially, under the support of the spring, the sliding plate is close to the basket mouth of the storage basket.

[0014] As a further improvement and optimization of the present utility model, the sliding plate is arranged obliquely.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. In this solution, the screening component screens the peas through the gap. The gap is also inclined and there are no holes or depressions. Therefore, the peas can roll smoothly along the gap downward to achieve classification by size.

[0017] 2. In this solution, the cooperation between the sliding plate and the spring in the storage basket can effectively reduce the height difference between the peas and the storage basket at the beginning. As the peas continuously fall into the storage basket, under the action of gravity, the sliding plate will move downward and the spring will be compressed, so that the upper surface of the peas in the storage basket is always close to but does not exceed the basket opening, thus ensuring that the peas falling into the storage basket will not be damaged due to the height difference. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of Embodiment 1;

[0019] Figure 2 is a cross-section of the screening box Figure 1 ;

[0020] Figure 3 is a cross-section of the screening box Figure 2 ;

[0021] Figure 4 is a schematic diagram of the screening member;

[0022] Figure 5 is a schematic diagram of the discharge port and the guiding pipe;

[0023] Figure 6 is a schematic diagram of the storage basket.

[0024] The reference numerals in the drawings are:

[0025] 1. Chassis; 2. Screening box; 3. Box cover; 4. Hopper; 5. Guiding plate; 6. Screening plate; 7. Guiding rib; 8. Discharge port; 9. Guiding pipe; 10. Storage basket; 11. Sliding plate; 12. Spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined utility model purpose, the following describes in detail the specific implementation manner, structure, features and effects of the present invention in combination with the accompanying drawings and preferred embodiments. Embodiment

[0027] Referring to Figures 1-5 , a screening device for pea harvesting, including a chassis 1, a screening box 2 is installed on the chassis 1, a box cover 3 is fitted and installed at the upper opening of the screening box 2, a feed hole is formed on the end face of the box cover 3, and a hopper 4 is installed at the upper hole of the feed hole; pour the peas into the hopper 4, and the peas fall into the screening box 2 through the feed hole, and the screening of the peas is realized by the screening member provided in the screening box 2.

[0028] Referring to Figures 2-4, the screening component includes a guiding plate 5 inclined in the screening box 2. The guiding plate 5 is arranged obliquely. Further, the two inner walls of the screening box 2 along the length direction are respectively named the first inner wall and the second inner wall. The highest point of the guiding plate 5 is connected to the first inner wall, and the lowest point is close to the second inner wall. The two sides of the guiding plate 5 along the width direction are respectively connected to the two inner walls of the screening box 2 along the width direction.

[0029] A number of guiding plates 5 are arranged in an array along the vertical direction.

[0030] A screening plate 6 is arranged between two adjacent guiding plates 5. The screening plate 6 is also arranged obliquely. The highest point of the screening plate 6 is connected to the second inner wall, and the lowest point is connected to the first inner wall. In addition, one side of the screening plate 6 along the width direction is connected to one inner wall of the screening box 2 along the width direction, and there is a gap between the other side of the screening plate 6 along the width direction and the other inner wall of the screening box 2 along the width direction.

[0031] A number of screening plates 6 are correspondingly arranged, and the gap sizes between the number of screening plates 6 and the screening box 2 increase along the vertical direction from bottom to top.

[0032] Further, a guiding rib 7 is arranged on the upper surface of the screening plate 6. The guiding rib 7 includes a straight segment close to and parallel to the length direction of the gap. The lowest point of the straight segment is connected to the lowest point of the screening plate 6, and an inclined segment arranged obliquely extends at the highest point of the straight segment. The distance between the inclined segment and the straight segment increases along the length direction of the gap and in the direction from the lowest point to the highest point of the gap.

[0033] Refer to Figure 5 , on the side of the screening box 2 connected to the lowest point of the screening plate 6, a discharge port 8 is opened. The peas guided and output by the screening plate 6 can be output outward through the discharge port 8. A number of discharge ports 8 are correspondingly arranged.

[0034] The working process of the first embodiment is specifically as follows:

[0035] Pour the peas into the hopper 4. The peas fall into the screening box 2 through the feed hole. The peas are guided by the uppermost guiding plate 5 and fall to the highest point of the uppermost screening plate 6, and then roll down along the uppermost screening plate 6. During the rolling process, guided by the guiding rib 7, the peas will approach the gap. Those with a size larger than the gap will continue to roll down on the screening plate 6 and finally be output through the discharge port 8, while those with a size smaller than the gap will pass through the gap and fall onto the next guiding plate 5 and repeat the rolling on the next screening plate 6. In this way, the screening of the peas is realized, and the screened peas are output outward through the corresponding discharge ports 8. A storage basket 10 can be placed below each discharge port 8 to receive the peas.

[0036] In the above process, since the screening of peas is achieved through a gap, the gap is also arranged obliquely and there are no holes or depressions. Therefore, the peas can roll smoothly downward along the gap to achieve classification by size. Embodiment

[0037] In the first embodiment, all the discharge ports 8 are located on the same side of the screening box 2. Therefore, it is difficult for multiple storage baskets 10 to have enough space to be placed. Therefore, the second embodiment is proposed.

[0038] Refer to Figure 5 , on the side of the screening box 2 where the discharge port 8 is provided, a guiding pipe 9 arranged obliquely is also provided. The highest point of the guiding pipe 9 is located directly below the discharge port 8. A number of corresponding guiding pipes 9 are provided. In this way, the peas output through the discharge port 8 are guided away by the guiding pipe 9. The lengths of the multiple guiding pipes 9 are different. In this way, the area for placing the storage baskets 10 can be increased.

[0039] In a preferred embodiment, the discharge ports 8 are at different heights. A supporting bracket with different heights can be provided below the lowest point of the guiding pipe 9 for placing the storage basket 10.

[0040] In a preferred embodiment, at the beginning, since the storage basket 10 is empty, there is a height difference between the peas and the bottom of the storage basket 10. This height difference gradually decreases as the peas continuously fall into the storage basket 10. However, the initial peas are prone to breakage due to the impact caused by the height difference. To solve this problem, refer to Figure 6 , a sliding plate 11 is sleeved inside the storage basket 10. A spring 12 is connected between the sliding plate 11 and the bottom of the storage basket 10. Initially, supported by the spring 12, the sliding plate 11 is close to the mouth of the storage basket 10. Therefore, the height difference between the peas and the storage basket 10 at the beginning can be effectively reduced. As the peas continuously fall into the storage basket 10, under the action of gravity, the sliding plate 11 will move downward and the spring 12 will be compressed. Thus, the upper surface of the peas in the storage basket 10 always approaches but does not exceed the mouth of the basket, so that the peas falling into the storage basket 10 can be prevented from breaking due to the height difference.

[0041] In a preferred embodiment, the sliding plate 11 can be arranged obliquely. In this way, when pouring the peas outwards, it is not necessary to deflect the mouth of the storage basket 10 too much to one side, which is more conducive to guiding the peas to be output outwards and saving some physical strength of the staff.

[0042] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present utility model. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A screening device for pea harvesting, comprising a chassis (1), a screening box (2) is installed on the chassis (1), a box cover (3) is fitted and installed at the upper box opening of the screening box (2), a feed hole is formed in the end face of the box cover (3), and a hopper (4) is installed at the upper hole opening of the feed hole, characterized in that, A guide plate (5) arranged obliquely is provided inside the screening box (2). The two inner walls of the screening box (2) along the length direction are respectively named inner wall one and inner wall two. The highest point of the guide plate (5) is connected to inner wall one, and the lowest point is close to inner wall two. The two sides of the guide plate (5) along the width direction are respectively connected to the two inner walls of the screening box (2) along the width direction. A number of guide plates (5) are arranged in an array along the vertical direction. A screening plate (6) is arranged between two adjacent guide plates (5). The screening plate (6) is arranged obliquely. The highest point of the screening plate (6) is connected to inner wall two, and the lowest point is connected to inner wall one. One side of the screening plate (6) along the width direction is connected to one inner wall of the screening box (2) along the width direction. There is a gap between the other side of the screening plate (6) along the width direction and the other inner wall of the screening box (2) along the width direction. A number of screening plates (6) are correspondingly arranged, and the gap between the number of screening plates (6) and the screening box (2) increases gradually from bottom to top along the vertical direction.

2. The screening device for pea harvesting according to claim 1, wherein, Guide ridges (7) are arranged on the upper surface of the screening plate (6). The guide ridges (7) include straight line segments close to and parallel to the length direction of the gap. The lowest point of the straight line segment is connected to the lowest point of the screening plate (6). An inclined segment arranged obliquely extends from the highest point of the straight line segment. The distance between the inclined segment and the straight line segment increases along the length direction of the gap and in the direction from the lowest point to the highest point of the gap.

3. The screening device for pea harvesting according to claim 2, characterized in that, On one side of the screening box (2) connected to the lowest point of the screening plate (6), a discharge port (8) is provided. The peas guided and output by the screening plate (6) can be output outward through the discharge port (8). A number of discharge ports (8) are correspondingly arranged, and a storage basket (10) is placed below each discharge port (8).

4. A screening device for pea harvesting according to claim 3, characterized in that, On the side of the screening box (2) provided with the discharge port (8), an inclined guide pipe (9) is also provided. The highest point of the guide pipe (9) is located directly below the discharge port (8). A number of guide pipes (9) are correspondingly arranged, and the lengths of the multiple guide pipes (9) are different. The storage basket (10) is placed below the lowest point of the corresponding guide pipe (9).

5. The screening device for pea harvesting according to claim 4, characterized in that, Below the lowest point of the guide pipe (9), support brackets with different heights are provided. The support brackets are used to place the storage basket (10).

6. The screening device for pea harvesting according to claim 4, wherein, A sliding plate (11) is sleeved inside the storage basket (10). A spring (12) is connected between the sliding plate (11) and the bottom of the storage basket (10). Initially, under the support of the spring (12), the sliding plate (11) is close to the basket mouth of the storage basket (10).

7. The screening device for pea harvesting according to claim 6, characterized in that, The sliding plate (11) is arranged obliquely.

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