Rotary corn kernel double-cleaning device

Abstract

The utility model relates to a rotary corn kernel dual-cleaning device and belongs to agricultural machinery. The rotary corn kernel dual-cleaning device comprises a kernel collecting hopper motor, a transmission shaft, a flat belt, a fan, an upper rotating disc, a crank a, a base, a crank b, a connecting rod, a rocker 1, a sliding block, a plane sieve, a separating screen, a base plate, a rotating center, a belt wheel, an upper rotating disc and the like. A rocker at the front end of a crank b can drive a crank a to rotate clockwise, meanwhile, the rocker can enable a rotating center to rotate by a certain amplitude in the anticlockwise direction, after the crank b rotates by 180 degrees, the rotating center can rotate in the opposite direction, accordingly, an upper rotating disc, a separation screen and a plane screen rotate by a certain amplitude back and forth, and meanwhile a motor can drive a draught fan to rotate. The flat screen performs primary screening to screen out large corn residues, airflow of the fan blows up part of the residues and leaves the residues on the flat screen, and then the separation screen performs secondary screening to leave the residues in the separation screen.

Description

Technical Field

[0001] The invention relates to agricultural machinery, in particular to a rotary corn grain double cleaning device. Background Art

[0002] Most of the existing corn kernel cleaning devices are single-layer screens, and most of the movement modes are planar reciprocating motion. The movement mode of the material is mostly from one end of the screen surface to the other end, causing a large amount of material to accumulate on the screen surface, and the material cannot be evenly distributed on the screen surface, resulting in insufficient screening, a low cleaning rate, and a single-layer screen surface can only achieve one screening, so the cleaning quality is poor, which reduces the cleaning rate of corn kernels. Summary of the invention

[0003] The purpose of the present invention is to develop a rotary corn kernel double cleaning device, which realizes the back and forth rotation of the separation screen, solves the problem that the detached materials are not evenly dispersed on the screen surface, resulting in insufficient screening, and solves the problem of poor cleaning quality of the single-layer screen surface.

[0004] The object of the present invention is achieved in this way. A rotary corn kernel double cleaning device is characterized in that: a crank (9) and a crank (11) are rotatably mounted on the left and right sides of a base (10), two sliders (14) are movably mounted on the left and right ends of a connecting rod, a rotation center (18) is rotatably mounted at the center of the two sliders, a rocker (13) passes through the rotation center (18) and is mounted in a circular groove with a hole at the front end of the crank a (9) and the crank b (11), a lower chassis (17) is rotatably mounted in the middle of the base (10), four connecting rods (12) are respectively mounted in the grooves with circular holes on the chassis (17), an upper rotating disk (8) is rotatably mounted on the corresponding connecting rod (12), and a housing (2) is mounted Outside the base (10), the seed collecting bucket (3) is fixedly connected to the upper rotating disk (8), the screen (16) is installed on the bottom surface of the seed collecting bucket (3), and the plane screen (15) is installed 30 cm from the top to the bottom of the separation screen (16). When the motor (4) drives the crank b (11) to rotate counterclockwise, the rocker (13) at the front end of the crank b (11) will drive the crank a (9) to rotate clockwise, and at the same time, the rocker (13) will cause the rotation center (18) to rotate in the counterclockwise direction to a certain extent. When the crank b (11) rotates 180°, the rotation center (18) will rotate in the opposite direction, so that the upper rotating disk (8) rotates back and forth to a certain extent, and at the same time, the motor (4) will also drive the fan (7) to rotate. The plane screen (15) is installed 30 cm from the top to the bottom of the separation screen (16). The crank (9) and the crank (11) are installed in opposite directions up and down.

[0005] The beneficial effect created by the present invention is that when the motor (4) drives the crank b (11) to rotate counterclockwise, the rocker (13) at the front end of the crank b (11) drives the crank a (9) to rotate clockwise, and at the same time the rocker (13) causes the rotation center (18) to rotate in the counterclockwise direction by a certain amplitude, and when the crank b (11) rotates 180°, the rotation center (18) rotates in the opposite direction, thereby causing the upper rotating disk (8), the separation screen (16), and the plane screen (15) to rotate back and forth by a certain amplitude, and at the same time the motor (4) also drives the fan (7) to rotate. The flat screen (15) will perform the first screening to screen out the large corn debris. At the same time, the airflow of the fan (4) will blow up some of the debris and leave it on the flat screen (15). Then the separation screen (16) will perform the second screening to leave the debris inside the separation screen (16). It has the characteristics of simple and reliable structure and convenient operation, can solve the problem of corn kernel accumulation on the screen, and improve the cleaning rate and cleaning quality of corn kernel cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 It is a schematic diagram of a rotary corn kernel double cleaning device;

[0007] Figure 2 It is a schematic diagram of a rotary corn kernel double cleaning device in front view;

[0008] Figure 3 It is a cross-sectional view from above of a rotary corn kernel double cleaning device;

[0009] Figure 4 It is a schematic diagram of the motion structure of the rotary screen;

[0010] Description of part numbers in the figure:

[0011] 1. Pressure cover, 2. Shell, 3. Grain collecting bucket, 4. Motor, 5. Transmission shaft, 6. Flat belt, 7. Fan, 8. Upper rotating disk, 9. Crank a, 10. Base, 11. Crank b, 12. Connecting rod, 13. Rocker, 14. Slider, 15. Flat screen, 16. Separation screen, 17. Chassis, 18. Rotation center, 19. Pulley, 20. Upper rotating disk. DETAILED DESCRIPTION

[0012] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. A rotary corn kernel double cleaning device is characterized in that: a housing (2) is arranged outside a base (10); a crank a (9) and a crank b (11) are respectively mounted in circular holes on a support frame on the base (10) in opposite directions; a chassis (17) is mounted in a circular hole on the base (10); connecting rods (12) are respectively fixed in holes on the chassis (17); sliders (14) are respectively mounted on the connecting rods (12); a rotation center (18) is mounted at the center of the sliders (14); a rocker (13) passes through the crank a (9), the crank b (11), and the rotation center (18); a kernel collecting bucket (3) is fixed on the housing (2); a separation screen (16) is fixed in the kernel collecting bucket; a flat screen (15) is fixed to the separation screen (16) from the top to 30 cm below; and a flat belt (6) is mounted on a pulley (19).

[0013] The working principle of the present invention is as follows: after the motor (4) drives the crank b (11) to rotate counterclockwise through the transmission shaft (5), the rocker (13) at the front end of the crank b (11) drives the crank a (9) to rotate clockwise, and at the same time, the rocker (13) causes the rotation center (18) to rotate in the counterclockwise direction by a certain amplitude. When the crank b (11) rotates 180 degrees, the rotation center (18) rotates in the opposite direction, thereby causing the upper rotating disk (8), the separation screen (16) and the plane screen (15) to rotate back and forth by a certain amplitude, and at the same time, the motor (4) also drives the fan (7) to rotate. The flat screen (15) will perform the first screening to screen out the large corn debris. At the same time, the airflow of the fan (4) will blow up some of the debris and leave it on the flat screen (15). Then the separation screen (16) will perform the second screening to leave the debris inside the separation screen (16). The double-layer screening of the flat screen and the separation screen improves the cleaning efficiency of the corn kernels. The airflow generated by the fan blows up some of the debris, solving the problem of corn kernels piling up on the screen, thereby improving the screen surface utilization and screening efficiency.

[0014] The rotary corn kernel double cleaning device designed by the present invention has the characteristics of simple and reliable structure and convenient operation, can solve the problem of corn kernel accumulation on the sieve, and improve the cleaning rate and cleaning quality of corn kernel cleaning.

Claims

1. A rotary corn kernel double cleaning device, characterized by: The crank a (9) and the crank b (11) are rotatably mounted on the left and right sides of the base (10), the two sliders (14) are movably mounted on the left and right ends of the connecting rod, the rotation center (18) is rotatably mounted at the center of the two sliders, the rocker (13) passes through the rotation center (18) and is mounted in a circular groove with a hole at the front end of the crank a (9) and the crank b (11), the lower chassis (17) is rotatably mounted in the middle of the base (10), the four connecting rods (12) are respectively mounted in the grooves with circular holes in the chassis (17), the upper rotating disk (8) is rotatably mounted on the corresponding connecting rod (12), and the housing (2) is mounted on the base (10), the corn grain collecting bucket (3) is fixedly connected to the upper rotating disk (8), and the screen (16) is installed on the bottom surface of the grain collecting bucket (3). When the motor (4) drives the crank b (11) to rotate counterclockwise, the rocker (13) at the front end of the crank b (11) drives the crank a (9) to rotate clockwise, and at the same time, the rocker (13) causes the rotation center (18) to rotate in the counterclockwise direction by a certain amplitude. When the crank b (11) rotates 180°, the rotation center (18) rotates in the opposite direction, thereby causing the upper rotating disk (8) to rotate back and forth by a certain amplitude. At the same time, the motor (4) also drives the fan (7) to rotate.

2. A rotary corn kernel double cleaning device according to claim 1, characterized in that: The flat screen (15) is installed 30 cm below the top of the separation screen (16).

3. The rotary corn kernel double cleaning device according to claim 1 is characterized in that: The crank a (9) and crank b (11) are installed in opposite directions up and down.

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