A rice impurity removal device

Abstract

This utility model discloses a rice impurity removal device, relating to the technical field of agricultural crop production equipment. It includes a housing, a fixed frame on one side of the housing, a rotating shaft rotatably connected inside the fixed frame, a spiral auger blade on the rotating shaft, a first bevel gear rotatably connected to the top of the fixed frame and fixedly sleeved on the rotating shaft, a second bevel gear rotatably connected to one side of the housing and meshing with the first bevel gear, a reciprocating screw coaxially fixedly connected to one end of the second bevel gear, a slider screwed onto the reciprocating screw, a frame at the bottom of the slider via a connecting rod, multiple filter holes on the frame, a guide assembly inside the housing to allow the slider to move horizontally in a straight line, an inclined plate inside the housing, a first channel and a second channel on the inner wall of the housing near the fixed frame, both communicating with the fixed frame, the first channel being below the second channel, a fan on the inner wall of the housing, and an air outlet on the inner wall of the housing.

Description

Technical Field

[0001] This utility model relates to the field of agricultural crop production equipment technology, specifically a rice impurity removal device. Background Technology

[0002] Rice refers to the grains without removing the husk. Botanically, it belongs to the common rice subspecies of the common rice subgenus of the genus Oryza in the family Poaceae. After harvesting, rice grains will contain some straw, broken leaves, or shriveled grains, which are difficult to remove. Agricultural workers usually use electric fans to sieve the rice grains through a screen. Straw, broken leaves, or shriveled grains remain on the screen, and the wind power is used to remove the dust from the rice grains.

[0003] For example, Chinese patent CN212633455U, entitled "A Rice Impurity Removal Device," includes a support base and an impurity removal box. An impurity removal roller is installed at the top of the box, a drive motor is installed on the left side wall, and a feed inlet is located above the roller. The drive motor is connected to a first sprocket, and a second sprocket is located below it. A bellows is installed on the left inner wall of the box, containing blades. A slag removal pipe is installed on the right side of the box, and a sieve box is located below it. The drive motor rotates the roller, causing rice grains and small impurities to fall through the sieve holes to the bottom of the box. The second sprocket drives the blades to rotate. Since the weight of the rice grains is greater than the weight of the husks and small impurities, the husks and small impurities falling from the sieve holes are blown to the slag removal pipe and the slag storage chamber. A cam pushes the sieve box to vibrate vertically, resulting in high impurity removal efficiency and the ability to classify rice grains, making the process more convenient.

[0004] While the rice impurity removal device in the aforementioned patent is practical and convenient, it also has shortcomings. Although the fan can blow out rice husks and small particles of impurities, some impurities and rice husks are still not removed, requiring multiple sieving processes to completely remove the impurities, which reduces work efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a rice impurity removal device to address the shortcomings of the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: The rice impurity removal device includes a box body. A fixed frame is provided on one side of the box body. A rotating shaft is rotatably connected inside the fixed frame. A spiral auger blade is provided on the rotating shaft. A first bevel gear is rotatably connected to the top of the fixed frame and is fixedly sleeved on the rotating shaft. A second bevel gear, meshing with the first bevel gear, is rotatably connected to one side of the box body. A reciprocating screw is coaxially fixedly connected to one end of the second bevel gear near the box body. A slider is screwed onto the reciprocating screw. A frame is provided at the bottom of the slider via a connecting rod. Multiple filter holes are provided on the frame. A guide assembly is provided inside the box body, allowing the slider to move horizontally in a straight line. An inclined plate is provided inside the box body. A first channel and a second channel are provided on the inner wall of the box body near the fixed frame. Both the first and second channels communicate with the fixed frame. The first channel is located below the second channel. A fan is provided on the inner wall of the box body near the fixed frame. An air outlet is provided on the inner wall of the box body away from the fixed frame.

[0007] Furthermore, the guiding assembly includes a guide block, a guide groove is horizontally formed inside the housing, the guide block is horizontally slidably connected in the guide groove, and the bottom of the guide block is fixedly connected to the top of the slider.

[0008] Furthermore, two grooves are horizontally symmetrically opened inside the box, and two telescopic rods are symmetrically arranged on both sides of the frame. The inner walls of the two grooves are fixedly connected to the ends of the two telescopic rods that are far apart from each other, and a spring is sleeved on each of the two telescopic rods.

[0009] Furthermore, a connecting pipe communicating with the air outlet is provided on the other side of the box, and a slag storage box communicating with the connecting pipe is provided on the other side of the box.

[0010] Furthermore, a vibration motor is provided at the bottom of the inclined plate.

[0011] Compared with the prior art, the beneficial effects provided by this utility model are as follows: This rice impurity removal device uses a reciprocating frame to screen and filter materials. Since the weight of the rice is greater than the weight of the rice husk and small particle impurities, the fan blows the rice husk and small particle impurities out of the air outlet. Some rice husks and small particle impurities that are not blown out, along with the rice, enter the fixed frame through the first channel. By rotating the shaft, the spiral auger blades drive the rice, some rice husks that are not blown out, and small particle impurities to move upward and fall back into the frame through the second channel. This process involves multiple screenings and blowing out of impurities, resulting in a high impurity removal effect. It can automatically cycle through multiple impurity removal cycles, thus improving work efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0014] Figure 2 Top view of the overall structure provided for an embodiment of this utility model;

[0015] Figure 3 for Figure 2 Sectional view at point AA;

[0016] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0017] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Vibrating motor; 3. Box door; 4. Slag storage box; 5. Connecting pipe; 6. Hopper; 7. Fixing frame; 8. Support plate; 9. Motor body; 10. Rotating shaft; 11. Spiral auger blade; 12. First channel; 13. Fan; 14. Second channel; 15. First bevel gear; 16. Second bevel gear; 17. Reciprocating screw; 18. Slider; 19. Guide block; 20. Guide groove; 21. Connecting rod; 22. Frame; 23. Filter hole; 24. Telescopic rod; 25. Spring; 26. Groove; 27. Feed inlet; 28. Air outlet; 29. ​​Inclined plate. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0019] Please see Figure 1-4The present invention provides a technical solution: the rice impurity removal device includes a housing 1, a fixed frame 7 on one side of the housing 1, a rotating shaft 10 rotatably connected inside the fixed frame 7, a spiral auger blade 11 on the rotating shaft 10, a first bevel gear 15 rotatably connected to the top of the fixed frame 7, and the first bevel gear 15 fixedly sleeved on the rotating shaft 10, a second bevel gear 16 rotatably connected to one side of the housing 1 and meshing with the first bevel gear 15, a reciprocating screw 17 coaxially fixedly connected to one end of the second bevel gear 16 near the housing 1, a slider 18 screwed onto the reciprocating screw 17, a frame 22 provided at the bottom of the slider 18 via a connecting rod 21, and multiple filter holes 23 opened on the frame 22. The housing 1 is equipped with a guide assembly, which allows the slider 18 to move horizontally in a straight line. An inclined plate 29 is provided inside the housing 1. A first channel 12 and a second channel 14 are provided on the inner wall of the housing 1 near the fixed frame 7, both communicating with the fixed frame 7. The first channel 12 is located below the second channel 14. A fan 13 is provided on the inner wall of the housing 1 near the fixed frame 7, and an air outlet 28 is provided on the inner wall of the housing 1 away from the fixed frame 7. Specifically, a door 3 is hinged to the housing 1. A connecting pipe 5 communicating with the air outlet 28 is provided on the other side of the housing 1. A slag collection box 4 communicating with the connecting pipe 5 is provided on the other side of the housing 1. A feed inlet 2 is provided on the other side of the housing 1. 7. A hopper 6 communicating with the feed inlet 27 is provided on the other side of the box body 1 for easy feeding. The first channel 12 is inclined downward toward the fixed frame 7, and the second channel 14 is inclined downward toward the frame 22. A support plate 8 is provided on one side of the box body 1. A motor body 9 is provided on the support plate 8, and the output end of the motor body 9 is coaxially and fixedly connected to the bottom end of the rotating shaft 10. The motor body 9 drives the rotating shaft 10 to rotate, which drives the first bevel gear 15 to rotate. The first bevel gear 15 meshes with the second bevel gear 16, which causes the reciprocating screw 17 to rotate. Guided by the wire assembly, the slider 18 slides horizontally back and forth driven by the rotation of the reciprocating screw 17, and drives the frame 22 to move horizontally back and forth through the connecting rod 21. The material on the frame 22 is screened, and rice, rice husks and small particles of impurities fall out from the filter holes 23. Since the weight of the rice is greater than that of the rice husks and small particles of impurities, the fan 13 blows the rice husks and small particles of impurities from the air outlet 28 through the connecting pipe 5 into the slag box 4. Then, some of the rice husks and small particles of impurities that are not blown out, along with the rice, enter the fixed frame 7 from the first channel 12. By rotating the shaft 10, the spiral auger blades 11 drive the rice, some of the rice husks that are not blown out and the small particles of impurities to move upward and fall back into the frame 22 from the second channel 14. The process of screening and blowing out impurities is repeated multiple times, resulting in a high impurity removal effect. It can automatically cycle and remove impurities multiple times, improving work efficiency.

[0020] As a preferred technical solution, the guide assembly includes a guide block 19, and a guide groove 20 is horizontally opened in the housing 1. The guide block 19 is horizontally slidably connected in the guide groove 20. The bottom of the guide block 19 is fixedly connected to the top of the slider 18. Specifically, through the cooperation between the guide block 19 and the guide groove 20, the slider 18 is prevented from rotating axially around the reciprocating screw 17. The slider 18 is driven to complete the axial reciprocating motion by the unidirectional rotation of the reciprocating screw 17.

[0021] As a preferred technical solution, two horizontally symmetrical grooves 26 are provided inside the box body 1, and two telescopic rods 24 are symmetrically provided on both sides of the frame 22. The inner walls of the two grooves 26 are fixedly connected to the opposite ends of the two telescopic rods 24. A spring 25 is sleeved on each of the two telescopic rods 24. Specifically, the cooperation between the telescopic rods 24 and the springs 25 plays a certain buffering role for the frame 22 to avoid rigid collisions. The frame 22 is horizontally slidably connected in the grooves 26, and the top and bottom of the frame 22 are in contact with the two inner walls of the grooves 26 to prevent materials from entering the grooves 26.

[0022] As a preferred technical solution, a vibration motor 2 is provided at the bottom of the inclined plate 29. Specifically, the vibration motor 2 vibrates the inclined plate 29, causing the rice grains, rice husks and small particle impurities to move faster along the inclined plate 29 toward the first channel 12. It should be noted that the specific models and specifications of the motor body 9, the vibration motor 2 and the fan 13 need to be selected and determined according to the actual specifications of the device, so they will not be described in detail.

[0023] Working principle: In this rice impurity removal device, the motor body 9 drives the rotating shaft 10 to rotate, which in turn drives the first bevel gear 15 to rotate. The first bevel gear 15 meshes with the second bevel gear 16, causing the reciprocating screw 17 to rotate. Through the cooperation of the guide block 19 and the guide groove 20, the slider 18 slides horizontally back and forth driven by the rotation of the reciprocating screw 17. This drives the frame 22 to move horizontally back and forth through the connecting rod 21, screening the material on the frame 22. Rice grains, rice husks, and small particle impurities fall out from the filter holes 23. Since the weight of the rice grains is greater than that of the rice husks and other impurities, the material is removed. The fan 13 blows the rice husks and small particles of impurities from the outlet 28 through the connecting pipe 5 into the slag box 4. Then, some of the rice husks and small particles that are not blown out, along with the rice, enter the fixed frame 7 through the first channel 12. By rotating the shaft 10, the spiral auger blades 11 drive the rice, some of the rice husks that are not blown out, and small particles of impurities to move upward and fall back into the frame 22 through the second channel 14. This process involves multiple screenings and blowing out of impurities, resulting in a high impurity removal effect. It can automatically cycle through multiple impurity removal cycles, improving work efficiency.

[0024] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for removing impurities from paddy, characterized by comprising: The enclosure includes a housing (1), a fixed frame (7) on one side of the housing (1), a rotating shaft (10) rotatably connected inside the fixed frame (7), a spiral auger blade (11) on the rotating shaft (10), a first bevel gear (15) rotatably connected to the top of the fixed frame (7), and the first bevel gear (15) is fixedly sleeved on the rotating shaft (10). A second bevel gear (16) meshing with the first bevel gear (15) is rotatably connected to one side of the housing (1). A reciprocating screw (17) is coaxially fixedly connected to one end of the second bevel gear (16) near the housing (1). A slider (18) is screwed onto the reciprocating screw (17). The bottom of the slider (18) is connected to a connecting rod (21). There is a frame (22) with multiple filter holes (23) on the frame (22). The box (1) is equipped with a guide component, which allows the slider (18) to move horizontally in a straight line. The box (1) is equipped with an inclined plate (29). The inner wall of the box (1) near the fixed frame (7) is provided with a first channel (12) and a second channel (14). The first channel (12) and the second channel (14) are both connected to the fixed frame (7). The first channel (12) is located below the second channel (14). The inner wall of the box (1) near the fixed frame (7) is equipped with a fan (13). The inner wall of the box (1) away from the fixed frame (7) is provided with an air outlet (28).

2. The paddy rice impurity removing device according to claim 1, characterized in that, The guiding component includes a guide block (19), and a guide groove (20) is horizontally opened inside the housing (1). The guide block (19) is horizontally slidably connected in the guide groove (20), and the bottom of the guide block (19) is fixedly connected to the top of the slider (18).

3. The rice impurity removal device according to claim 1, characterized in that, The box (1) has two horizontally symmetrical grooves (26) inside. The frame (22) has two telescopic rods (24) symmetrically arranged on both sides. The inner walls of the two grooves (26) are fixedly connected to the ends of the two telescopic rods (24) that are far away from each other. A spring (25) is sleeved on each of the two telescopic rods (24).

4. The rice impurity removal device according to claim 1, characterized in that, On the other side of the box (1), there is a connecting pipe (5) that communicates with the air outlet (28), and on the other side of the box (1), there is a slag box (4) that communicates with the connecting pipe (5).

5. The rice impurity removal device according to claim 1, characterized in that, A vibration motor (2) is provided at the bottom of the inclined plate (29).

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