Adjustable combined screen surface corn kernel cleaning device

Abstract

An adjustable combined screen surface corn kernel cleaning device belongs to agricultural machinery. The device uses a crank rocker mechanism to cause screen surface b to perform planar reciprocating motion. Screen surface b rotates around a pin, and screen surfaces c-e perform planar reciprocating motion, reducing the accumulation of corn kernels at the front end of the screen surface and completing the cleaning process. Material is fed from the feed port, and screen surface a continuously throws the front end material backward. The planar reciprocating motion of screen surfaces b-e cleans the material. When the feed rate increases and the front end accumulation area increases, the combined screen surfaces a and b throw the material backward. Screen surfaces a-e have grooves on the top and bottom, reducing the vortex effect while increasing airflow speed. The herringbone rib structure on the inner wall of the cleaning chamber improves the speed and stability of the airflow inside the cleaning chamber. This device effectively alleviates the problems of corn kernels accumulating at the front end of the screen surface and sieve hole blockage when a large feed rate is used, and can complete high-quality and efficient cleaning operations.

Description

Technical Field

[0001] The invention belongs to agricultural machinery, and mainly relates to an adjustable combined screen surface corn grain cleaning device. Background Art

[0002] Currently, the cleaning process is a critical step, and the structure and performance of corn kernel cleaning equipment directly affect cleaning efficiency and quality. Existing corn kernel cleaning mechanisms often use a crank-rocker mechanism to drive the entire flat screen in a planar reciprocating motion. When a large amount of corn kernels are fed, the material accumulates in front of the screen, making backward transport inefficient, leading to clogging of the screen holes and poor cleaning results. Summary of the Invention

[0003] The purpose of the present invention is to provide an adjustable combined screen surface corn kernel cleaning device to solve the technical problem in the prior art that when the feed amount is large, the material will accumulate at the front end of the screen surface, which easily causes the screen surface sieve holes to be blocked, resulting in low screening rate and low cleaning quality.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a technical solution of an adjustable combined screen surface corn grain cleaning device: an adjustable combined screen surface corn grain cleaning device, characterized in that left and right suspension rods are provided on a frame (2), and connecting rods a (6) and connecting rods b (11) are installed on the suspension rods, the other end of connecting rod a (6) is hinged to the side plate of screen surface a (12), the other end of connecting rod b (11) is hinged to the side plate of screen surface e (16), the screen surfaces a to e (12 to 16) are hinged by a pin (18), the right end of screen surface a (12), the left end of screen surface e (16), and the screen surface a (12) and the left end of screen surface e (16) are hinged. Surfaces b to d (13 to 15) are fixedly connected with insert sleeves (17) on both sides, and the screen surface c (14), screen surface d (15) and screen surface e (16) are combined into the entire screen surface through the insert sleeve (17). A support (7) is fixedly installed below the screen surface b (13) and the screen surface c (14). The support (7) is connected to the short shaft (8). One end of the rocker (9) is connected to the short shaft (8) and the other end is connected to the crank (10). The crank (10) is rotatably installed with the drive shaft (5). The drive shaft (5) is connected to the cleaning chamber housing (3) through a bearing (4). The other end of the drive shaft is connected to the motor. Under the motion of the screen surface b (13), the screen surface b (13) performs a planar reciprocating motion, driving the screen surface a (12) to rotate around the pin shaft (18), driving the screen surfaces c to e (14 to 16) to perform a planar reciprocating motion, the right end of the screen surface a (12), the left end of the screen surface e (16), and both sides of the screen surfaces b to d (13 to 15) are fixed with a plug-in sleeve (17), the stud bolt (19) and the plug-in sleeve (17) cooperate with each other, so that the adjacent screen surfaces can be combined into a whole screen surface that cannot move relative to each other. Supports are respectively installed under the screen surface b (13) and the screen surface c (14), and the crank rocker mechanism can connect the supports under different screen surfaces. When the screen surface b (13) is driven, the screen surfaces c (14), sieve surface d (15) and screen surface e (16) are combined into the entire screen surface through the plug-in sleeve (17). When the screen surface c (14) is driven, the screen surfaces a (12) and sieve surface b (13) are combined into the entire screen surface through the plug-in sleeve (17). The screen surfaces d (15) and sieve surface e (16) are combined into the entire screen surface through the plug-in sleeve (17). The screen surfaces a to e (12 to 16) are provided with transverse grooves on the upper and lower sides. The front and rear inner walls of the selection chamber shell are in the shape of herringbone ribs. The ribs are symmetrical up and down, and the angle between the ribs and the central axis is 30°.

[0005] Compared with the prior art, the present invention has the beneficial effect of providing an adjustable combined screen surface corn kernel cleaning device. The material enters the cleaning chamber through the upper feed port (1). When the screen surface b (13) is driven, the material is continuously thrown backward by the movement of the screen surface a (12). The screen surfaces c to e (14 to 16) clean the material through a planar reciprocating motion. When the feed rate increases and the accumulation area of ​​the material at the front end of the screen surface increases, the screen surface c (14) is driven. The screen surfaces a (12) and the screen surface b (13) are combined to continuously throw the material backward to avoid the accumulation of the material at the front end of the screen surface. The grooves opened above and below the screen surfaces a to e (12 to 16) can weaken the vortex effect near the screen surface and increase the airflow speed. The herringbone rib structure of the front and rear inner walls of the cleaning chamber shell can increase the speed and stability of the airflow in the cleaning chamber and improve the cleaning efficiency. The whole machine has the characteristics of stable and reliable operation, high cleaning efficiency and low loss rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a schematic diagram of an adjustable combined screen corn kernel cleaning device.

[0007] Figure 2 The main view of an adjustable combined screen corn kernel cleaning device

[0008] Figure 3 This is a schematic diagram of an adjustable combined screen corn kernel cleaning device with a hidden cleaning chamber shell.

[0009] Figure 4 A top view of an adjustable combined screen corn kernel cleaning device with a concealed cleaning chamber housing.

[0010] Figure 5 This is the axonometric drawing of the cleaning chamber shell

[0011] Figure 6 Schematic diagram of the screen surface groove

[0012] Figure 7 yes Figure 3 Enlarged view of the hinged part of the middle A screen surface

[0013] Figure 8 yes Figure 3 Enlarged view of the middle B insert sleeve

[0014] Explanation of the part numbers in the figure: 1. Feed inlet, 2. Frame, 3. Cleaning chamber casing, 4. Bearing, 5. Drive shaft, 6. Connecting rod a, 7. Support, 8. Short shaft, 9. Rocker, 10. Crank, 11. Connecting rod b, 12. Screen surface a, 13. Screen surface b, 14. Screen surface c, 15. Screen surface d, 16. Screen surface e, 17. Insert sleeve, 18. Pin, 19. Stud bolt. DETAILED DESCRIPTION

[0015] An adjustable combined screen surface corn kernel cleaning device is characterized in that left and right suspension rods are provided on a frame (2), and connecting rods a (6) and connecting rods b (11) are installed on the suspension rods, the other end of connecting rod a (6) is hinged to the side plate of screen surface a (12), the other end of connecting rod b (11) is hinged to the side plate of screen surface e (16), the screen surfaces a to e (12 to 16) are hinged by a pin shaft (18), the right end of screen surface a (12), the left end of screen surface e (16), and both sides of screen surfaces b to d (13 to 15) are fixed with plug-in sleeves (17), screen surface c (14), screen surface The entire screen surface is formed by combining the d (15) and the screen surface e (16) through the plug-in sleeve (17). A support (7) is fixedly installed below the screen surface b (13) and the screen surface c (14). The support (7) is connected to the short shaft (8). One end of the rocker (9) is connected to the short shaft (8) and the other end is connected to the crank (10). The crank (10) is rotatably installed with the drive shaft (5). The drive shaft (5) is connected to the cleaning chamber housing (3) through the bearing (4). The other end of the drive shaft is connected to the motor. Under the movement of the crank rocker, the screen surface b (13) performs a planar reciprocating motion, driving the screen surface a (12 ) rotates around the pin shaft (18), driving the screen surfaces c~e (14~16) to make a plane reciprocating motion. The right end of the screen surface a (12), the left end of the screen surface e (16), and both sides of the screen surfaces b~d (13~15) are fixed with a plug-in sleeve (17). The stud bolts (19) and the plug-in sleeve (17) cooperate with each other to combine the adjacent screen surfaces into a whole screen surface that cannot move between each other. Supports are respectively installed under the screen surface b (13) and the screen surface c (14). The crank rocker mechanism can connect the supports under different screen surfaces. When the screen surface b (13) is driven, the screen surface c (14) and the screen surface c (15) are connected. The screen surface d (15) and the screen surface e (16) are combined into a whole screen surface through the plug-in sleeve (17). When the screen surface c (14) is driven, the screen surface a (12) and the screen surface b (13) are combined into a whole screen surface through the plug-in sleeve (17). The screen surface d (15) and the screen surface e (16) are combined into a whole screen surface through the plug-in sleeve (17). The grooves opened on the upper and lower sides of the screen surfaces a to e (12 to 16) can weaken the vortex effect near the screen surface and increase the air flow speed. The herringbone rib structure of the front and rear inner walls of the cleaning chamber shell (3) can increase the speed and stability of the air flow in the cleaning chamber.

[0016] Working principle: Under the drive of the motor, the drive shaft (5) drives the crank (10) to rotate, and the rocker (9) rotates with the rotation of the crank (10), and the screen surface b (13) is made to do a plane reciprocating motion through the short shaft. The left side of the screen surface a (12) is connected to the suspension rod on the frame (2) through the connecting rod, so the screen surface a (12) rotates around the pin shaft (18), and the screen surfaces c~e (14~16) are combined into a whole screen surface that cannot move relative to each other through the plug-in sleeve (17) and the stud bolt (19). The screen surfaces c~e (14~16) do a plane reciprocating motion. When the crank rocker mechanism drives the screen surface c (14) to do a plane reciprocating motion, the screen surface a (12 ) and screen surface b (13) are combined into a mutually immovable whole screen surface by means of a plug-in sleeve (17) and stud bolts (19). Screen surface a (12) and screen surface b (13) rotate around the pin shaft. Screen surface d (15) and screen surface e (16) are combined into a mutually immovable whole screen surface by means of a plug-in sleeve (17) and stud bolts (19). Screen surface d (15) and screen surface e (16) perform a plane reciprocating motion. The grooves opened on the upper and lower sides of screen surfaces a to e (12 to 16) can reduce the vortex effect near the screen surface and increase the airflow speed. The herringbone rib structure of the front and rear inner walls of the cleaning chamber shell can increase the speed and stability of the airflow in the cleaning chamber.

Claims

1. An adjustable combined screen surface corn kernel cleaning device, characterized by: Left and right suspension rods are provided on the frame (2), and connecting rods a (6) and connecting rods b (11) are installed on the suspension rods. The other end of connecting rod a (6) is hinged to the side plate of screen surface a (12), and the other end of connecting rod b (11) is hinged to the side plate of screen surface e (16). Screen surfaces a to e (12 to 16) are hinged by a pin (18). The right end of screen surface a (12), the left end of screen surface e (16), and both sides of screen surfaces b to d (13 to 15) are fixedly connected. The insert sleeve (17) and the stud bolt (19) cooperate with the insert sleeve (17) to combine the adjacent screen surfaces into a whole screen surface that cannot move relative to each other. The screen surface b (13) and the screen surface c (14) are respectively fixedly installed with a support (7). The support (7) is connected to the short shaft (8). One end of the rocker (9) is connected to the short shaft (8) and the other end is connected to the crank (10). The crank (10) is rotatably installed with the drive shaft (5). The drive shaft (5) is connected to the short shaft (8). The bearing (4) is connected to the cleaning chamber housing (3), and the other end of the drive shaft is connected to the motor. The crank rocker mechanism can connect the supports under different screen surfaces. When the screen surface b (13) is driven, the screen surface b (13) performs a planar reciprocating motion, driving the screen surface a (12) to rotate around the pin shaft (18). The screen surfaces c (14), d (15) and e (16) are combined into the entire screen surface through the plug-in sleeve (17), driving the screen surfaces c~e (14~16 ) makes a planar reciprocating motion. When the screen surface c (14) is driven, the screen surface a (12) and the screen surface b (13) are combined into the entire screen surface through the plug-in sleeve (17). The screen surface d (15) and the screen surface e (16) are combined into the entire screen surface through the plug-in sleeve (17). The screen surfaces a to e (12 to 16) are provided with transverse grooves on the upper and lower sides. The front and rear inner walls of the cleaning chamber shell are in the shape of herringbone ribs. The ribs are symmetrical up and down, and the angle between the ribs and the central axis is 30°.

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