Dust collection cleaning air duct of grain cleaning machine

Abstract

A dust collection cleaning air duct of a grain cleaning machine comprises a rack, a feeding plate, a lower-layer sieve plate, a motor, transmission belts and eccentric devices are installed in the rack, the motor is connected with the two eccentric devices through the two transmission belts, the two eccentric devices are connected with the feeding plate and the lower-layer sieve plate through the transmission belts respectively, and a feeding inlet is formed in the front end of the feeding plate. A feeding outlet is formed in the rear end of the feeding plate, an impurity removing fan component is installed at the upper end of the rack, a fan inlet variable-diameter component is installed at the upper end of the impurity removing fan component, and a fan is installed at the upper end of the fan inlet variable-diameter component; the small impurity and dust removing device has the advantages of being good in small impurity and dust removing effect, opening and closing of the air volume adjusting plate are controlled through the air volume adjusting door, then the air volume is controlled, the overall air volume is adjusted, the air suction cover is installed over the lower-layer sieve plate, the upper side of the air suction cover is communicated with the impurity removing fan component through the air suction pipeline, and the space between the lower portion of the air suction cover and the lower-layer sieve plate is sealed through canvas. And small impurities, dust and the like on the sieve plate are cleaned, so that impurities in the rice are further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of grain cleaning machines, in particular to a dust suction and cleaning air duct of a grain cleaning machine. Background Art

[0002] Grain cleaning machine, also known as grain cleaning machine, is a kind of grain screening machine. It is a device that relies on the equipment fan and built-in vibration screening to classify, screen and remove impurities from grain and other economic crops. It is suitable for cleaning and screening economic crops such as corn, wheat, peanuts, soybeans, rice, millet, cotton seeds, camellia seeds, etc. The small grain cleaning machine consists of a frame, a drive motor, a fan, a grain throwing machine and a vibrating screen body. The production capacity is 8 tons per hour. Compared with other grain machines, it has the characteristics of small size, simple operation, easy movement, and long service life. It is deeply loved by small processing enterprises and small and medium-sized farmers.

[0003] Due to its structural characteristics, grain cleaning machines are good at screening small particles such as stones, but are not very effective in removing smaller impurities such as dust. Large grain cleaning machines can remove dust better, but their structures are more complex. For small processing companies and small and medium-sized farmers, the cost is too high, which will squeeze profits. Summary of the invention

[0004] In order to solve the above problems and overcome the shortcomings of the prior art, the utility model provides a dust suction and cleaning air duct of a grain cleaning machine which has a good effect of removing small debris and dust.

[0005] To achieve the above-mentioned purpose, the utility model provides a dust suction cleaning air duct of a grain cleaning machine, comprising a frame, a feed plate, a lower sieve plate, a motor, a transmission belt and an eccentric device are installed inside the frame, the motor is connected to the two eccentric devices through two transmission belts, and the two eccentric devices are respectively connected to the feed plate and the lower sieve plate through transmission belts, a feed inlet is provided at the front end of the feed plate, a feed outlet is provided at the rear end of the feed plate, a dust removal fan component is installed at the upper end of the frame, a fan inlet reducing component is installed at the upper end of the dust removal fan component, and a fan is installed at the upper end of the fan inlet reducing component.

[0006] Furthermore, the impurity removal fan component includes a shell, the upper end of the shell is provided with a total air suction port, the total air suction port is connected to the fan inlet reducer, the interior of the shell is provided with a cavity, the upper part of the front end of the cavity is connected to the feed port, the lower part of the front end of the cavity is provided with a first air suction port, the first air suction port corresponds to the position of the feed inlet, the lower part of the rear end of the cavity is connected to the air suction duct, the lower end of the air suction duct is provided with a second air suction port, the second air suction port corresponds to the position of the feed outlet;

[0007] Air volume adjustment plates are arranged at the front and rear ends of the cavity. The air volume adjustment plate at the front end of the cavity is located between the first air suction port and the main air suction port, and the air volume adjustment plate at the rear end of the cavity is located between the second air suction port and the main air suction port.

[0008] Furthermore, the shell includes a frame, which includes a number of supporting angle steels connected to each other. The outside of the frame is equipped with a top plate, a bottom plate, a side plate, a front plate, a rear plate, an inlet plate and a discharge port wind shield. The top plate, the bottom plate, the side plate, the front plate, the rear plate, the inlet plate and the discharge port wind shield form a sealed cavity structure.

[0009] Furthermore, the fan inlet reducing component includes an air suction main pipe, a fan reducing port is arranged inside the air suction main pipe, the fan reducing port includes a rotating shaft and fan blades, and the fan blades are rotatably connected to the air suction main pipe via the rotating shaft.

[0010] Furthermore, the upper end of the air suction main pipe is connected to the fan, and the air outlet of the fan is provided with an air outlet air regulating component.

[0011] Furthermore, the air outlet air regulating component includes a rotating shaft and fan blades, and the fan blades are rotatably connected to the air outlet via the rotating shaft.

[0012] Furthermore, the lower end of the suction duct is connected to a suction hood, the lower sieve plate is located below the suction hood, a sealing sleeve is provided on the lower sieve plate, and the upper end of the sealing sleeve is sealed and connected to the suction hood.

[0013] Furthermore, the sealing sleeve is made of canvas.

[0014] Furthermore, a discharge port is provided on the frame, and the discharge port corresponds to the lower end position of the lower sieve plate.

[0015] The beneficial effects of the utility model are:

[0016] The dust suction and cleaning air duct of the grain cleaning machine provided by the utility model has the advantage of good effect of removing small impurities and dust. There are one air volume adjustment plate on each side, which respectively suck air to remove impurities at the feeding inlet and the feeding outlet. The opening and closing of the air volume adjustment plate is controlled by the air volume adjustment door, and then the air volume is controlled. The air volume is adjusted according to the actual processing situation. The fan is located above the fuselage, and an air adjustment component is installed at the fan outlet to adjust the overall air volume. An air suction hood is installed just above the lower screen plate, and the upper side of the air suction hood is connected to the impurity removal fan component through an air suction duct. Canvas is used to seal the bottom of the air suction hood and the lower screen plate to clean small impurities and dust on the screen plate, thereby further reducing impurities in rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Attached Figure 1 It is a structural schematic diagram of the utility model;

[0018] Attached Figure 2 It is a schematic diagram of the structure of the impurity removal fan components of the utility model;

[0019] Attached Figure 3 It is a schematic diagram of the structure of the fan inlet variable diameter component of the utility model;

[0020] In the attached drawings: 1. feed port, 2. air outlet air regulating component, 3. fan inlet reducing component, 4. impurity removal fan component, 5. air volume adjustment door, 6. air volume adjustment plate, 7. suction duct, 8. suction hood, 9. lower sieve plate, 10. canvas, 11. discharge port, 12. fan, 13. back plate, 14. frame, 15. discharge port wind shield, 16. supporting angle steel, 17. bottom plate, 18. feed plate, 19. front plate, 20. suction main pipe, 21. side plate, 22. fan reducing port. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the present invention more clear, the following will be combined with the appendix of the present invention. Figure 1 ~Attached Figure 3 , the utility model is described in more detail.

[0022] The dust collecting and cleaning air duct of the grain cleaning machine provided by the utility model comprises a frame, a feeding plate, a lower sieve plate 9, a motor, a transmission belt and an eccentric device are installed inside the frame, the motor is connected to the two eccentric devices through two transmission belts, the two eccentric devices are respectively connected to the feeding plate and the lower sieve plate 9 through the transmission belts, a feeding inlet is arranged at the front end of the feeding plate, a feeding outlet is arranged at the rear end of the feeding plate, a dust removal fan component 4 is installed at the upper end of the frame, a fan inlet reducing component 3 is installed at the upper end of the fan inlet reducing component 3, and a fan 12 is installed at the upper end of the fan inlet reducing component 3; the dust removal fan component 4 comprises a shell, A total air suction port is provided at the upper end of the shell, and the total air suction port is connected to the fan inlet reducing component 3. A cavity is provided inside the shell, and the upper part of the front end of the cavity is connected to the feed port 1, and the lower part of the front end of the cavity is provided with a first air suction port, and the first air suction port corresponds to the position of the feed inlet. The lower part of the rear end of the cavity is connected to a suction duct 7, and the lower end of the suction duct 7 is provided with a second air suction port, and the second air suction port corresponds to the position of the feed outlet; air volume adjustment plates 6 are provided at the front and rear ends of the cavity, the air volume adjustment plate 6 at the front end of the cavity is located between the first air suction port and the total air suction port, and the air volume adjustment plate 6 at the rear end of the cavity is located The housing includes a frame 14, the frame 14 includes a plurality of supporting angle steels 16 connected to each other, and the outside of the frame 14 is provided with a top plate, a bottom plate 17, a side plate 21, a front plate 19, a rear plate 13, an inlet plate 18 and a discharge port wind shield 15, and the top plate, the bottom plate 17, the side plate 21, the front plate 19, the rear plate 13, the inlet plate 18 and the discharge port wind shield 15 form a sealed cavity structure; the fan inlet reducer 3 includes a suction main pipe 20, and a fan reducer 22 is arranged inside the suction main pipe 20, and the fan reducer 22 includes a rotating shaft and a fan blade, and the fan blade passes through The rotating shaft is rotatably connected to the suction main pipe 20; the upper end of the suction main pipe 20 is connected to the fan 12, and the air outlet of the fan 12 is provided with an air outlet regulating component 2; the air outlet regulating component 2 includes a rotating shaft and fan blades, and the fan blades are rotatably connected to the air outlet through the rotating shaft; the lower end of the suction duct 7 is connected to the suction hood 8, the lower sieve plate 9 is located below the suction hood 8, and a sealing sleeve is provided on the lower sieve plate 9, and the upper end of the sealing sleeve is sealed and connected to the suction hood 8; the sealing sleeve is made of canvas 10; a discharge port 11 is provided on the frame, and the discharge port 11 corresponds to the lower end position of the lower sieve plate 9.

[0023] One embodiment of the present invention is as follows:

[0024] The dust collection and cleaning air duct of the grain cleaning machine includes a frame, and a feed plate, a lower screen plate 9, a motor, a transmission belt and an eccentric device are installed inside the frame. The motor is connected to the two eccentric devices through two transmission belts, and the two eccentric devices are respectively connected to the feed plate and the lower screen plate 9 through transmission belts. Screening is performed through the vibration generated by the eccentric device. This structure is common knowledge in the field and will not be described in detail here.

[0025] A feeding inlet is provided at the front end of the feeding plate, a feeding outlet is provided at the rear end of the feeding plate, a de-impurity fan component 4 is installed at the upper end of the frame, the de-impurity fan component 4 includes a shell, a total air suction port is provided at the upper end of the shell, the total air suction port is connected with the fan inlet reducing component 3, a cavity is provided inside the shell, the upper part of the front end of the cavity is connected with the feeding port 1, the lower part of the front end of the cavity is provided with a first air suction port, the lower part of the rear end of the cavity is connected with a suction duct 7, and the lower end of the suction duct 7 is provided with a second air suction port;

[0026] The shell includes a frame 14, which includes a plurality of supporting angle steels 16 connected to each other. The frame 14 structure is formed by the supporting angle steels 16, and the structure is stable, strong and durable. The outside of the frame 14 is installed with a top plate, a bottom plate 17, a side plate 21, a front plate 19, a rear plate 13, an inlet plate 18 and a discharge port wind shield 15, wherein the top plate and the bottom plate 17 are located on the upper and lower surfaces of the frame 14, the side plates 21 are located on the left and right sides of the frame 14, the front plate 19 and the rear plate 13 are located at the front and rear ends of the frame 14, the inlet plate 18 is located at the first air suction port, and the discharge port wind shield 15 is located at the second air suction port. The top plate, the bottom plate 17, the side plates 21, the front plate 19, the rear plate 13, the inlet plate 18 and the discharge port wind shield 15 form a sealed cavity structure, and the airflow enters from the first air suction port and the second air suction port, and then passes through the cavity and is discharged from the main air suction port.

[0027] The first suction port corresponds to the position of the feeding inlet. When grain enters from the feeding inlet, the airflow will suck the dust and the like in the grain upward. The second suction port corresponds to the position of the feeding outlet. The grain passing through the feeding plate is discharged from the feeding outlet into the lower sieve plate 9. In this process, the airflow will be sucked in from the grain through the second suction port, thereby completing the suction and impurity removal process.

[0028] Air volume adjustment plates 6 are provided at both the front and rear ends of the cavity. The air volume adjustment plate 6 at the front end of the cavity is located between the first air suction port and the main air suction port, and the air volume adjustment plate 6 at the rear end of the cavity is located between the second air suction port and the main air suction port.

[0029] The air volume regulating door 5 is formed by the air volume regulating plate 6 and the frame. By adjusting the air volume regulating plate 6, the opening amount of the air volume regulating door 5 changes, thereby controlling the size of the air volume. A rotating shaft is provided at the upper end of the air volume regulating plate 6. The air volume regulating plate 6 is rotatably connected to the frame 14 through the rotating shaft. A motor and a plurality of gears are connected to the rotating shaft, and the rotating shaft is controlled by the motor.

[0030] In other embodiments, the rotating shaft can be controlled by manual rotation.

[0031] The fan inlet reducing component 3 is installed on the upper end of the impurity removal fan component 4, and the fan 12 is installed on the upper end of the fan inlet reducing component 3. The fan inlet reducing component 3 includes an air suction main pipe 20, and the interior of the air suction main pipe 20 is provided with a fan reducing port 22, and the fan reducing port 22 includes a rotating shaft and a fan blade, and the fan blade is rotatably connected to the air suction main pipe 20 through the rotating shaft.

[0032] The upper end of the air suction main pipe 20 is connected to the fan 12. The air outlet of the fan 12 is provided with an air outlet regulating component 2. The air outlet regulating component 2 includes a rotating shaft and fan blades. The fan blades are rotatably connected to the air outlet via the rotating shaft.

[0033] The overall air volume is adjusted by the air outlet air regulating component 2 and the fan inlet diameter reducing component 3.

[0034] The rotating shafts of the tuyere air regulating component and the fan inlet diameter reducing component 3 are connected with a motor and a plurality of gears, and the rotating shafts are controlled by the motor.

[0035] In other embodiments, the rotating shaft can be controlled by manual rotation.

[0036] The lower end of the suction duct 7 is connected with a suction hood 8, and the lower sieve plate 9 is located below the suction hood 8. A sealing sleeve is provided on the lower sieve plate 9, and the upper end of the sealing sleeve is sealed with the suction hood 8. The sealing sleeve is made of canvas 10 to clean small debris and dust on the sieve plate to further reduce impurities in the rice.

[0037] A discharge port 11 is provided on the frame, and the discharge port 11 corresponds to the lower end position of the lower sieve plate 9 .

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust collecting and cleaning air duct of a grain cleaning machine, comprising a frame, a feeding plate, a lower sieve plate, a motor, a transmission belt and an eccentric device are installed inside the frame, the motor is connected to two eccentric devices through two transmission belts, the two eccentric devices are respectively connected to the feeding plate and the lower sieve plate through transmission belts, the front end of the feeding plate is provided with a feeding inlet, and the rear end of the feeding plate is provided with a feeding outlet, characterized in that: A de-impurity fan component is installed on the upper end of the frame, a fan inlet diameter reducing component is installed on the upper end of the de-impurity fan component, and a fan is installed on the upper end of the fan inlet diameter reducing component.

2. The dust suction and cleaning air duct of the grain cleaning machine according to claim 1, characterized in that: The impurity removal fan component includes a shell, the upper end of the shell is provided with a total air suction port, the total air suction port is connected to the fan inlet reducer, the interior of the shell is provided with a cavity, the upper part of the front end of the cavity is connected to the feed port, the lower part of the front end of the cavity is provided with a first air suction port, the first air suction port corresponds to the position of the feed inlet, the lower part of the rear end of the cavity is connected to the air suction duct, the lower end of the air suction duct is provided with a second air suction port, the second air suction port corresponds to the position of the feed outlet; Air volume adjustment plates are provided at both the front and rear ends of the cavity. The air volume adjustment plate at the front end of the cavity is located between the first air suction port and the main air suction port, and the air volume adjustment plate at the rear end of the cavity is located between the second air suction port and the main air suction port.

3. The dust suction and cleaning air duct of the grain cleaning machine according to claim 2, characterized in that: The shell includes a frame, which includes a number of supporting angle steels connected to each other. The outside of the frame is equipped with a top plate, a bottom plate, a side plate, a front plate, a rear plate, an inlet plate and a discharge port wind shield. The top plate, the bottom plate, the side plate, the front plate, the rear plate, the inlet plate and the discharge port wind shield form a sealed cavity structure.

4. The dust suction and cleaning air duct of the grain cleaning machine according to claim 1, characterized in that: The fan inlet reducing component includes an air suction main pipe, a fan reducing opening is arranged inside the air suction main pipe, the fan reducing opening includes a rotating shaft and fan blades, and the fan blades are rotatably connected to the air suction main pipe via the rotating shaft.

5. The dust suction and cleaning air duct of the grain cleaning machine according to claim 4, characterized in that: The upper end of the air suction main pipe is connected to the fan, and the air outlet of the fan is provided with an air outlet air regulating component.

6. The dust suction and cleaning air duct of the grain cleaning machine according to claim 5, characterized in that: The air outlet air regulating component includes a rotating shaft and a fan blade, and the fan blade is rotatably connected to the air outlet via the rotating shaft.

7. The dust suction and cleaning air duct of the grain cleaning machine according to claim 2, characterized in that: The lower end of the suction duct is connected with a suction hood, the lower sieve plate is located below the suction hood, a sealing sleeve is arranged on the lower sieve plate, and the upper end of the sealing sleeve is sealed and connected with the suction hood.

8. The dust suction and cleaning air duct of the grain cleaning machine according to claim 7, characterized in that: The sealing sleeve is made of canvas.

9. The dust suction and cleaning air duct of the grain cleaning machine according to claim 1, characterized in that: The frame is provided with a discharge port, and the discharge port corresponds to the lower end position of the lower sieve plate.

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