A corn kernel cleaning device with adjustable screen angle and elastic fingers

Abstract

The invention relates to a corn kernel cleaning device with an adjustable screen angle and elastic fingers, which belongs to agricultural machinery. The device comprises a winching device, an adjustable imitation sawtooth screen, a grain collecting auger, a frame, etc. The elastic fingers and the roller on the winching device are made of polyurethane material, and the elastic fingers are evenly arranged along the axial and circumferential directions of the roller. When working, the elastic fingers on the winching device rotate clockwise with the roller and touch the fixed rod a, and are compressed to obtain elastic potential energy. Then the winching device continues to rotate, and the compressed elastic fingers are released, throwing and dispersing the corn exfoliated material transported by the shaking plate. The adjustable imitation sawtooth screen consists of multiple short screens, long screens and side plates. The short screens and the long screens are arranged adjacent to each other and connected by a pin shaft. The angle between the two adjacent screens can be changed by adjusting the position of the pin shaft stuck in the groove, so that the corn kernels can fully pass through the screen, thereby solving the problems of grain accumulation before the screen and low screening efficiency when a large amount of corn exfoliated material is fed.

Description

Technical Field

[0001] The invention relates to agricultural machinery, in particular to a corn grain cleaning device with an adjustable screen angle and elastic fingers. Background Art

[0002] At present, the screen body of corn kernel cleaning device mostly adopts flat integrated screen, and the screen body mostly performs flat reciprocating motion. When a large amount of corn extrudate is fed in, the material on the screen accumulates in front of the screen and is not fully dispersed, which leads to low screening efficiency, serious corn kernel loss and poor operation quality. Summary of the Invention

[0003] In response to the above technical problems, the present invention has developed a corn kernel cleaning device with an adjustable screen angle and elastic fingers. When the corn exudate is fed in a large amount, the dispersion of the corn exudate is improved, the accumulation of corn exudate on the screen surface is reduced, the corn kernels are fully and evenly screened, the corn kernel screening efficiency is improved, and the corn kernel loss rate is reduced, thereby meeting the corn kernel cleaning requirements under large feeding conditions.

[0004] The object of the present invention is achieved in this way. A corn grain cleaning device with an adjustable screen angle and elastic fingers is characterized in that: a fan (3) is installed at the bottom of the front end of the frame (22), and a pulley a (4) and a pulley e (33) are installed at both ends of the fan (3) for power transmission; a grain collecting auger (9) is installed at the lower right of the fan (3), and a pulley d (31) is installed on the right side of the grain collecting auger (9); a shaking plate (1) is installed at the upper end of the frame (22), and the front end of the shaking plate (1) is connected to the outer side of the pulley a (4) through a connecting rod a (2); a lifting device is installed at the lower right of the shaking plate (1), and the transmission shaft a (11) on the lifting device is connected to the bearing on the frame (22). The lifting device is composed of a transmission shaft a (11), an elastic finger (28), and a roller (30). A pulley c (29) is installed at the right end of the transmission shaft a (11). The elastic finger (28) and the roller (30) are both made of polyurethane material and the elastic finger (28) is evenly arranged along the axial direction and circumferential direction of the roller (30). When working, the elastic finger (28) on the lifting device rotates clockwise with the roller (30) and touches the fixed rod a (10), and is compressed to obtain elastic potential energy. Then the lifting device continues to rotate, and the compressed elastic finger (28) is released immediately, and the corn removed from the shaking plate (1) is thrown and dispersed. Two pairs of suspension rods (18) are installed on the upper end of the frame (22). (18) The upper end is matched with the bearing clearance on the frame (22); an adjustable imitation sawtooth screen is installed inside the frame (22), and its two side plates (16) are connected to the lower ends of the two pairs of suspension rods (18) through a pin shaft, so that the adjustable imitation sawtooth screen can move smoothly under the drive of the crank connecting rod mechanism; the adjustable imitation sawtooth screen is composed of multiple short screens (23), long screens (24) and side plates (16), the short screens (23) and the long screens (24) are arranged adjacent to each other and connected by a pin shaft (17), and the angle between the adjacent two screens can be changed by adjusting the position of the pin shaft (17) stuck in the groove (19) on the two side plates (16), and at the same time, the two ends of the pin shaft (17) can be stuck in the two side plates (16) through a gasket (36). 6) is used to limit the pin (17) and maintain a constant angle between two adjacent screens; the bearing installed on the middle shell of the frame (22) is matched with the middle gap of the transmission shaft b (14), and the corresponding frame (22) is installed with a pulley b (13) on the outside and a crank (26) on the inside; the pulley b (13) and the crank (26) are respectively matched with the two ends of the transmission shaft b (14) through flat keys, and the crank (26) and the side plate (16) of the adjustable imitation sawtooth screen are connected through a connecting rod b (25); the tail of the frame (22) is equipped with a fixed metal mesh (20) and a debris discharge port (21), thereby forming a corn kernel cleaning device with an adjustable screen angle and elastic fingers.

[0005] During the cleaning process, the pulley d (31) drives the pulley c (29) to rotate through the belt c (34), thereby driving the lifting device to work. The elastic finger (28) on the lifting device rotates clockwise with the roller (30) and contacts the fixed rod a (10), and is compressed to obtain elastic potential energy. Then the lifting device continues to rotate, and the compressed elastic finger (28) is released immediately, throwing and dispersing the corn exfoliated material transported by the shaking plate (1), which can alleviate the phenomenon of accumulation in front of the screen when the corn exfoliated material is fed in a large amount; the pulley a (4) drives the pulley b (13) to rotate through the belt a (6), and then drives the adjustable imitation sawtooth screen to screen the corn exfoliated material through the crank connecting rod mechanism. The short screen (23) and the long screen (24) of the adjustable imitation sawtooth screen are arranged adjacent to each other and connected by the pin ( 17) connection, the angle between two adjacent screens can be changed by adjusting the position of the pin shaft (17) stuck in the groove (19) on the two side plates (16). When a large amount of corn exudates are fed, the positions of the first five pin shafts (17) on the adjustable imitation sawtooth screen stuck in the groove (19) on the two side plates (16) are adjusted to increase the distance between adjacent pin shafts (17), increase the angle between two adjacent screens, thereby accelerating the forward speed of the corn exudates in the front of the screen surface and reducing the accumulation of the corn exudates in the front of the screen surface; the positions of the last five pin shafts (17) on the adjustable imitation sawtooth screen stuck in the groove (19) on the two side plates (16) are adjusted to reduce the distance between adjacent pin shafts (17), reduce the angle between two adjacent screens, thereby reducing the forward speed of the corn exudates in the rear of the screen surface, so that the corn kernels can fully and evenly pass through the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a schematic diagram of the structure of a corn kernel cleaning device with an adjustable screen angle and elastic fingers;

[0007] Figure 2 An axonometric view of a corn kernel cleaning device with an adjustable screen angle and elastic fingers;

[0008] Figure 3 A top view of a corn kernel cleaning device with an adjustable screen angle and elastic fingers;

[0009] Figure 4 It is a structural diagram of a lifting device;

[0010] Figure 5 It is a structural diagram of an adjustable imitation sawtooth screen;

[0011] Figure 6 It is a front view of the adjustable imitation sawtooth screen when corn extract is fed in large quantities;

[0012] Figure 7 This is a schematic diagram of the structure of the adjustable imitation sawtooth screen side plate;

[0013] Figure 8 It is a structural diagram of a pin shaft with a gasket;

[0014] Figure 9 This is a partial enlarged view of some adjacent screens connected;

[0015] Figure 10 This is a partial enlarged view of the pin stuck in the groove.

[0016] Description of part numbers in the figure:

[0017] 1. Shaking plate, 2. Connecting rod a, 3. Fan, 4. Pulley a, 5. Fan base, 6. Belt a, 7. Upper air outlet, 8. Lower air outlet, 9. Grain collecting auger, 10. Fixed rod a, 11. Drive shaft a, 12. Inclined slider, 13. Pulley b, 14. Drive shaft b, 15. Connecting shaft, 16. Side plate, 17. Pin, 18. Hanging rod, 19. Groove, 20. Fixed metal mesh, 21. Trash outlet, 22. Frame, 23. Short screen, 24. Long screen, 25. Connecting rod b, 26. Crank, 27. Fixed rod b, 28. Elastic finger, 29. Pulley c, 30. Drum, 31. Pulley d, 32. Belt b, 33. Pulley e, 34. Belt c, 35. Slide, 36. Gasket DETAILED DESCRIPTION

[0018] The embodiment of the present invention is described in detail below with reference to the accompanying drawings. A corn kernel cleaning device with an adjustable screen angle and elastic fingers is provided. A fan (3) is installed at the bottom of the front end of a frame (22). A pulley a (4) and a pulley e (33) are installed at both ends of the fan (3) for power transmission. A grain collecting auger (9) is installed at the lower right of the fan (3), and a pulley d (31) is installed on the right side of the grain collecting auger (9). A shaking plate (1) is installed at the upper end of the frame (22), and the front end of the shaking plate (1) is connected to the outer side of the pulley a (4) through a connecting rod a (2). The lower right of the shaking plate (1) is installed. The invention is provided with a lifting device, wherein a transmission shaft a (11) on the lifting device is in clearance fit with a bearing on a frame (22); the lifting device is composed of a transmission shaft a (11), an elastic finger (28) and a roller (30); a pulley c (29) is installed at the right end of the transmission shaft a (11); the elastic finger (28) and the roller (30) are both made of polyurethane material; the elastic finger (28) is evenly arranged along the axial direction and the circumferential direction of the roller (30); two pairs of suspension rods (18) are installed at the upper end of the frame (22); the upper ends of the suspension rods (18) are in clearance fit with the bearing on the frame (22); an adjustable imitation sawtooth type is installed inside the frame (22). The adjustable zigzag screen is composed of a plurality of short screens (23), a long screen (24) and a side plate (16), the short screens (23) and the long screens (24) are arranged adjacent to each other and connected by a pin (17), and the angle between the two adjacent screens can be changed by adjusting the position of the pin (17) stuck in the groove (19) on the two side plates (16), and at the same time, the two ends of the pin (17) can be stuck in the groove (19) of the two side plates (16) through a gasket (36), which plays a role in limiting the pin (17) and maintaining the angle between the two adjacent screens. The invention relates to a machine frame (22) having a central housing and a central transmission shaft b (14) having a bearing and a central clearance. The corresponding machine frame (22) is provided with a pulley b (13) on the outer side and a crank (26) on the inner side. The pulley b (13) and the crank (26) are respectively provided with two ends of the transmission shaft b (14) through flat keys. The crank (26) and the side plate (16) of the adjustable zigzag screen are connected through a connecting rod b (25). The tail of the machine frame (22) is provided with a fixed metal mesh (20) and a debris discharge port (21). Thus, a corn kernel cleaning device with an adjustable sieve angle and elastic fingers is formed.

[0019] The working principle of the present invention is as follows: when corn precipitates are fed, external input power drives pulley a (4) to rotate, and pulley a (4) drives shaking plate (1) to shake through connecting rod a (2), thereby conveying corn precipitates to the screen surface and dispersing them; pulley d (31) drives pulley c (29) to rotate through belt c (34), thereby driving the plucking device to work; the elastic finger (28) on the plucking device rotates clockwise with the roller (30) and contacts the fixed rod a (10), and is compressed to obtain elastic potential energy, and then the plucking device continues to rotate, and the compressed elastic finger (28) is released immediately, and the shaking plate ( 1) The corn extrudates transported are thrown and dispersed to prevent the corn extrudates from accumulating on the front end of the screen surface; the pulley a (4) drives the pulley b (13) to rotate through the belt a (6), thereby driving the crank (26) and the connecting rod b (25) to drive the adjustable imitation sawtooth screen to reciprocate and screen the corn extrudates on the screen surface, and adjusting the position of the pin shaft (17) on the adjustable imitation sawtooth screen to be stuck on the groove (19) to change the angle between the adjacent two screens of the adjustable imitation sawtooth screen. When a large amount of corn extrudates are fed, the first five pin shafts (17) on the adjustable imitation sawtooth screen are adjusted to be stuck in the grooves (19) on the two side plates (16). ) position, increase the distance between adjacent pins (17), increase the angle between two adjacent screens at the front of the screen body, thereby accelerating the forward speed of corn off-gassing in front of the screen face, reducing the accumulation of corn off-gassing in front of the screen face, adjusting the position of the five pins (17) on the adjustable imitation sawtooth screen to be stuck in the grooves (19) on the two side plates (16), reducing the distance between adjacent pins (17) at the rear of the screen body, reducing the angle between two adjacent screens, thereby reducing the forward speed of corn off-gassing in the rear of the screen face, so that the corn kernels can fully and evenly pass through the screen; the corn kernels that have passed through the screen fall on the inclined slider (12) at the bottom of the frame (22) and slide The corn kernels fall to the grain collecting auger (9), and the pulley e (33) drives the pulley d (31) to rotate through the belt b (32), thereby driving the grain collecting auger (9) to collect and transport the corn kernels; the fan (3) provides airflow for the entire cleaning chamber, and the airflow from the upper air outlet (7) passes through the gap between the shaking plate (1) and the adjustable imitation sawtooth screen to stratify the corn kernels falling from the shaking plate, and the airflow from the lower air outlet (8) can pass through the sieve holes of the adjustable imitation sawtooth screen to push the corn kernels on the sieve forward, and cooperate with the adjustable imitation sawtooth screen to discharge the remaining corn kernels out of the machine through the impurity discharge port (21), thereby improving the cleaning rate of the corn kernels.

[0020] When the amount of corn extrudates fed is large, compared with the traditional corn kernel cleaning device, the elastic fingers (28) on the lifting device in the cleaning device can lift and disperse the corn extrudates delivered by the shaking plate (1), thereby improving the dispersion of the corn extrudates, reducing the accumulation of corn extrudates at the front end of the screen surface, and making the corn extrudates evenly distributed on the screen surface; the adjustable imitation sawtooth screen in the cleaning device can increase the forward speed of the corn extrudates at the front end of the screen surface and reduce the forward speed of the corn extrudates at the rear end of the screen surface by changing the angle between the two adjacent screens, thereby achieving full and uniform screening of the corn kernels, thereby improving the corn kernel cleaning rate and reducing the corn kernel loss rate.

Claims

1. A corn kernel cleaning device with an adjustable screen angle and elastic fingers, characterized by: The invention is composed of a lifting device, an adjustable sawtooth-shaped screen, a grain collecting auger, and a frame; a fan (3) is installed at the bottom of the frame (22), and a pulley a (4) and a pulley e (33) are installed at both ends of the fan (3) for power transmission; a grain collecting auger (9) is installed at the lower right of the fan (3), and a pulley d (31) is installed on the right side of the auger; a shaking plate (1) is installed at the upper end of the frame (22); a lifting device is installed at the lower right of the shaking plate (1), and the lifting device The transmission shaft a (11) on the frame (22) is in clearance with the bearing on the frame (22), and a pulley c (29) is installed on the right side of the transmission shaft a (11); two pairs of suspension rods (18) are installed in the middle of the frame (22), and the upper ends of the suspension rods (18) are in clearance with the bearing fixed on the frame (22); the adjustable imitation sawtooth screen is installed inside the frame (22), and its two side plates (16) are connected to the lower ends of the two pairs of suspension rods (18) through pins; the middle outer part of the frame (22) The bearing installed on the housing is in clearance fit with the middle of the transmission shaft b (14), and a pulley b (13) is installed on the outer side of the corresponding frame (22), and a crank (26) is installed on the inner side; the pulley b (13) and the crank (26) are respectively matched with the two ends of the transmission shaft b (14) through flat keys, and the crank (26) and the side plate (16) of the adjustable imitation sawtooth screen are connected through a connecting rod b (25); the adjustable imitation sawtooth screen is composed of multiple short screens (23), long screens, and a plurality of short screens. The screen (24) and the side plate (16) are composed of a short screen (23) and a long screen (24) arranged adjacent to each other and connected by a pin (17). The angle between the two adjacent screens can be changed by adjusting the position of the pin (17) stuck in the groove (19) on the two side plates (16). At the same time, the two ends of the pin (17) can be stuck in the groove (19) of the two side plates (16) through a gasket (36) to limit the pin (17) and maintain a constant angle between the two adjacent screens.

2. The corn kernel cleaning device with adjustable screen angle and elastic fingers according to claim 1, characterized in that: The plucking device is composed of a transmission shaft a (11), an elastic finger (28), and a roller (30). The elastic finger (28) and the roller (30) on the plucking device are both made of polyurethane material. The elastic finger (28) is evenly arranged along the axial direction and the circumferential direction of the roller (30). When working, the elastic finger (28) on the plucking device rotates clockwise with the roller (30) and contacts the fixed rod a (10), and is compressed to obtain elastic potential energy. Then, the plucking device continues to rotate, and the compressed elastic finger (28) is released immediately, throwing and dispersing the corn extrusions transported from the shaking plate (1).

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