Grain specific gravity cleaning screen

Abstract

The utility model discloses grain specific gravity fine selection screen belongs to the grain screening field, including screening box, feeding cylinder, fine selection box, feeding subassembly and fixing frame, the feeding subassembly is including motor, first pivot, fine selection cylinder and first spiral blade, the lateral surface fixed connection of first pivot has first belt pulley, the lateral surface of first belt pulley is provided with belt, the inner surface of belt is provided with second belt pulley, the inner surface fixed connection of second belt pulley has second pivot. The utility model can conveniently carry out secondary feeding to the grain after primary screening, need not manual removal screened grain to the feeding port in the process, save the transport link, alleviate the labor intensity of manual removal, improve the efficiency of feeding, and can synchronous feeding realizes the parallelism of primary screening and fine selection, improves the screening efficiency and precision, reduces the energy loss simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of grain screening technology, specifically relating to a grain gravity fine screening sieve. Background Technology

[0002] Grain screening is a key process in grain processing, storage, and trade. It mainly uses principles such as sieves, airflow, and density differences to separate impurities such as grass seeds, dust, and shriveled grains from grains, thereby improving grain quality.

[0003] Currently, after grain is screened, a small amount of impurities are still mixed in. When conducting a second screening, the grain after the first screening needs to be manually moved to the screening inlet, which is not convenient for rapid second screening and involves high manual labor intensity. Utility Model Content

[0004] To solve the above-mentioned technical problems, the present invention provides a grain gravity fine screening sieve, characterized in that it includes a screening box, a feeding cylinder, a fine screening box, a feeding assembly, and a fixing frame. The feeding assembly includes a motor, a first rotating shaft, a fine screening cylinder, and a first spiral blade. A first pulley is fixedly connected to the side surface of the first rotating shaft, a belt is provided on the side surface of the first pulley, a second pulley is provided on the inner surface of the belt, a second rotating shaft is fixedly connected to the inner surface of the second pulley, and the side surface of the second rotating shaft is rotatably connected to the feeding cylinder. A first discharge pipe is fixedly connected to the side surface of the fine screening cylinder, a second discharge pipe is fixedly connected to the side surface of the feeding cylinder, and a second storage box is fixedly connected to the right surface of the screening box.

[0005] The above technical solution achieves power distribution through the first pulley, belt, and second pulley, synchronously driving the sorting cylinder and the feeding cylinder for feeding, reducing energy consumption and equipment costs; the first discharge pipe and the second discharge pipe are respectively connected to the sorting box and the screening box, supporting parallel feeding and improving efficiency.

[0006] The present invention is further configured such that the output end of the motor is fixedly connected to the first rotating shaft, the side surface of the first rotating shaft is rotatably connected to the selection cylinder, the side surface of the first rotating shaft is fixedly connected to the first spiral blade, the inner surface of the selection cylinder is rotatably connected to the first spiral blade, a support frame is fixedly connected to the upper surface of the fixed frame, the upper surface of the support frame is fixedly connected to the motor, and the side surface of the first rotating shaft is rotatably connected to the support frame.

[0007] Through the above technical solution, the rotation of the first rotating shaft simultaneously drives the rotation of the first spiral blade to transport the material from the second storage box to the fine selection box.

[0008] The present invention is further configured such that the first feeding pipe passes through the interior of the selection box, and the second feeding pipe passes through the interior of the screening box.

[0009] With the above technical solution, the feeding pipe passes directly through the box, avoiding dust escaping and reducing material loss.

[0010] The present invention is further configured such that a first specific gravity screen is provided inside the selection box, a first suction plate is provided inside the selection box, a first suction pipe is fixedly connected to the upper surface of the first suction plate, and the side surface of the first suction pipe is fixedly connected to the selection box.

[0011] Through the above technical solution, one side of the first suction tube is connected to an external vacuum cleaner. The vacuum cleaner provides negative pressure to suck up and collect the dust and small particles generated during the screening process.

[0012] The present invention is further configured such that a second specific gravity screen is provided inside the screening box, a second suction plate is provided inside the screening box, a second suction pipe is fixedly connected to the upper surface of the second suction plate, and the side surface of the second suction pipe is fixedly connected to the screening box.

[0013] With the above technical solution, one side of the second suction tube is connected to an external vacuum cleaner, and the vacuum cleaner provides negative pressure to suck up and collect the dust.

[0014] The present invention is further configured such that a second spiral blade is fixedly connected to the side surface of the second rotating shaft, and the inner surface of the feeding cylinder is rotatably connected to the second spiral blade.

[0015] Through the above technical solution, the second spiral blade enhances the conveying capacity of the feed cylinder, ensuring continuous and stable material supply.

[0016] The present invention is further configured such that a supporting base plate is fixedly connected to the lower surface of the fixed frame, a moving wheel is fixedly connected to the lower surface of the supporting base plate, a first storage box is provided on the upper surface of the supporting base plate, a second collection box is fixedly connected to the right surface of the selection box, and a first discharge port is provided inside the selection box.

[0017] The above technical solution allows the device to be easily moved using casters, while adjustable support feet are provided on one side of the base plate to ensure the stability of the device during use.

[0018] The beneficial effects of this utility model are as follows:

[0019] By setting up components such as a screening box, motor, first rotating shaft, first pulley, belt, second pulley, second rotating shaft, feeding cylinder and selection cylinder, the grain after primary screening can be fed a second time quickly and conveniently. During the process, there is no need to manually move the screened grain to the feeding port, eliminating the transfer link, reducing the labor intensity of manual handling, improving the feeding efficiency, and enabling simultaneous feeding to achieve primary screening and selection in parallel, improving screening efficiency and accuracy, while reducing energy consumption. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the grain specific gravity screening sieve of this utility model;

[0021] Figure 2 This is a partially exploded view of the structure of the grain specific gravity screening sieve of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the screening box of the grain specific gravity fine screening sieve of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the grain gravity finer screen of this utility model;

[0024] Figure 5 This is a schematic diagram of the grain gravity fine screen of this utility model;

[0025] Figure 6 This is a top view of the grain specific gravity screening sieve of this utility model.

[0026] Reference numerals: 1. Screening box; 2. Motor; 3. First rotating shaft; 4. First pulley; 5. Belt; 6. Second pulley; 7. Second rotating shaft; 8. Feeding cylinder; 9. Selecting cylinder; 10. First spiral blade; 11. First discharge pipe; 12. Selecting box; 13. First gravity screen; 14. First suction plate; 15. First suction pipe; 16. First discharge port; 17. Second collection box; 18. Second suction pipe; 19. Second gravity screen; 20. Second discharge pipe; 21. Second suction plate; 22. Support frame; 23. Fixed frame; 24. Support base plate; 25. Moving wheel; 26. First storage box; 27. Second storage box. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] like Figures 1-6As shown, the grain gravity fine screen of this embodiment includes a screening box 1, a feeding cylinder 8, a fine screening box 12, a feeding assembly and a fixing frame 23. The feeding assembly includes a motor 2, a first rotating shaft 3, a fine screening cylinder 9 and a first spiral blade 10. The output end of the motor 2 is fixedly connected to the first rotating shaft 3. The side surface of the first rotating shaft 3 is rotatably connected to the fine screening cylinder 9. The side surface of the first rotating shaft 3 is fixedly connected to the first spiral blade 10. The inner surface of the fine screening cylinder 9 is rotatably connected to the first spiral blade 10. By starting the motor 2 to drive the first rotating shaft 3 and the first spiral blade 10 to rotate, the material after one screening in the second storage box 27 can be fed. The process does not require manual feeding, which reduces the labor intensity of manual handling and improves the feeding efficiency.

[0029] A first pulley 4 is fixedly connected to the side surface of the first rotating shaft 3. A belt 5 is provided on the side surface of the first pulley 4. A second pulley 6 is provided on the inner surface of the belt 5. A second rotating shaft 7 is fixedly connected to the inner surface of the second pulley 6. A second spiral blade is fixedly connected to the side surface of the second rotating shaft 7. The inner surface of the feeding cylinder 8 is rotatably connected to the second spiral blade, and the side surface of the second rotating shaft 7 is rotatably connected to the feeding cylinder 8. The rotation of the first rotating shaft 3, under the action of the first pulley 4, the belt 5, and the second pulley 6, drives the second rotating shaft 7 and the second spiral blade to rotate, which can rotate the first storage box. The material inside 26 is fed. This structure can simultaneously feed material to achieve primary screening and fine screening in parallel, which improves screening efficiency and accuracy, while reducing energy consumption. The side surface of the fine screening cylinder 9 is fixedly connected to the first discharge pipe 11, which passes through the interior of the fine screening box 12. The side surface of the feeding cylinder 8 is fixedly connected to the second discharge pipe 20, which passes through the interior of the screening box 1. The first discharge pipe 11 and the second discharge pipe 20 pass directly through the box body to avoid dust escaping. The right surface of the screening box 1 is fixedly connected to the second storage box 27, and the fined material enters the second storage box 27.

[0030] A support frame 22 is fixedly connected to the upper surface of the fixed frame 23. The upper surface of the support frame 22 is fixedly connected to the motor 2. The side surface of the first rotating shaft 3 is rotatably connected to the support frame 22. The support frame 22 provides support and fixation for the motor 2.

[0031] The sorting box 12 is equipped with a first gravity screen 13 and a first suction plate 14. A first suction pipe 15 is fixedly connected to the upper surface of the first suction plate 14, and the side surface of the first suction pipe 15 is fixedly connected to the sorting box 12. The screening box 1 is equipped with a second gravity screen 19 and a second suction plate 21. A second suction pipe 18 is fixedly connected to the upper surface of the second suction plate 21, and the side surface of the second suction pipe 18 is fixedly connected to the screening box 1. A vibration motor is installed below the first gravity screen 13 and the second gravity screen 19. An external vacuum cleaner is connected to one side of the first suction pipe 15 and the second suction pipe 18. The vacuum cleaner provides negative pressure to suck up and collect the dust and small particles generated during the screening process.

[0032] A support base plate 24 is fixedly connected to the lower surface of the fixed frame 23, and a movable wheel 25 is fixedly connected to the lower surface of the support base plate 24. The movable wheel 25 allows the device to be moved easily. At the same time, an adjustable support foot is provided on one side of the support base plate 24 to ensure the stability of the device during use. A first storage box 26 is provided on the upper surface of the support base plate 24. Materials that need to be screened by gravity are placed in the first storage box 26 through the feed inlet. A second collection box 17 is fixedly connected to the right surface of the sorting box 12, which increases the structural connection. For stability, the selection box 12 is equipped with a first discharge port 16, and the second collection box 17 is equipped with a corresponding inlet at the same height as the first discharge port 16. Guide plates are provided on the first discharge port 16 and the inlet. The material screened by the second gravity screen 19 is guided into the second collection box 17 through the guide plates. Similarly, a second discharge port is provided in the screening box 1. The second storage box 27 is equipped with an inlet and a guide plate at the same height as the second discharge port on one side, so that the screened material can enter the second storage box 27.

[0033] The working principle of this utility model is as follows: In use, the material to be selected is placed in the first storage box 26. By starting the motor 2, the output end of the motor 2 drives the first rotating shaft 3 and the first pulley 4 to rotate. Under the action of the belt 5, the second pulley 6, the second rotating shaft 7 and the second spiral blade on the second rotating shaft 7 rotate to transport the material in the first storage box 26. The material enters the screening box 1 through the second discharge pipe 20. Under the action of the first gravity screen 13 in the screening box 1, the material is screened. The screened material enters the second storage box 27. The rotation of the first rotating shaft 3 drives the first spiral blade 10 to rotate. The material in the second storage box 27 after the first screening enters the selection box 12 through the first discharge pipe 11 for selection. The selected material enters the second collection box 17 and is discharged through the discharge pipe of the second collection box 17.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A grain gravity fine sieve, characterized in that: Includes screening box (1), feeding cylinder (8), sorting box (12), feeding assembly and fixing frame (23); The feeding assembly includes a motor (2), a first rotating shaft (3), a sorting cylinder (9), and a first spiral blade (10). A first pulley (4) is fixedly connected to the side surface of the first rotating shaft (3). A belt (5) is provided on the side surface of the first pulley (4). A second pulley (6) is provided on the inner surface of the belt (5). A second rotating shaft (7) is fixedly connected to the inner surface of the second pulley (6). The side surface of the second rotating shaft (7) is rotatably connected to the feeding cylinder (8). A first discharge pipe (11) is fixedly connected to the side surface of the sorting cylinder (9). A second discharge pipe (20) is fixedly connected to the side surface of the feeding cylinder (8). A second storage box (27) is fixedly connected to the right surface of the screening box (1).

2. The grain gravity fine sieve according to claim 1, characterized in that, The output end of the motor (2) is fixedly connected to the first rotating shaft (3). The side surface of the first rotating shaft (3) is rotatably connected to the selection cylinder (9). The side surface of the first rotating shaft (3) is fixedly connected to the first spiral blade (10). The inner surface of the selection cylinder (9) is rotatably connected to the first spiral blade (10). The upper surface of the fixed frame (23) is fixedly connected to the support frame (22). The upper surface of the support frame (22) is fixedly connected to the motor (2). The side surface of the first rotating shaft (3) is rotatably connected to the support frame (22).

3. The grain gravity fine sieve according to claim 1, characterized in that, The first feed pipe (11) passes through the interior of the selection box (12), and the second feed pipe (20) passes through the interior of the screening box (1).

4. The grain gravity fine sieve according to claim 1, characterized in that, The selection box (12) is provided with a first specific gravity screen (13) inside, and a first suction plate (14) is provided inside. A first suction pipe (15) is fixedly connected to the upper surface of the first suction plate (14), and the side surface of the first suction pipe (15) is fixedly connected to the selection box (12).

5. The grain gravity fine sieve according to claim 1, characterized in that, The screening box (1) is equipped with a second specific gravity screen (19) and a second suction plate (21). The upper surface of the second suction plate (21) is fixedly connected to a second suction pipe (18), and the side surface of the second suction pipe (18) is fixedly connected to the screening box (1).

6. The grain gravity fine sieve according to claim 1, characterized in that, The second rotating shaft (7) has a second spiral blade fixedly connected to its side surface, and the inner surface of the feeding cylinder (8) is rotatably connected to the second spiral blade.

7. The grain gravity fine sieve according to claim 1, characterized in that, The lower surface of the fixed frame (23) is fixedly connected to a support base plate (24), the lower surface of the support base plate (24) is fixedly connected to a moving wheel (25), the upper surface of the support base plate (24) is provided with a first storage box (26), the right surface of the fine selection box (12) is fixedly connected to a second collection box (17), and the interior of the fine selection box (12) is provided with a first discharge port (16).

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