Screening mechanism of flour mill

Abstract

The utility model relates to the technical field of flour mills, in particular to a screening mechanism of a flour mill, which comprises a machine body, a blast pipe and a conveying pipe, the outer side of the machine body is fixedly connected with the blast pipe, the outer side of the machine body is fixedly connected with the conveying pipe, and the inner side of the conveying pipe is fixedly connected with a motor. The outer side of the rotating shaft is fixedly connected with a first bearing, the outer side of the first bearing is fixedly connected with a fixing shell, the outer side of the rotating shaft is fixedly connected with a first bevel gear, and the outer side of the first bevel gear is connected with a second bevel gear in a meshed mode. Through the arrangement of a motor, a rotating shaft, a first bevel gear, a second bevel gear, a transmission shaft, an arc-shaped elastic piece, a brush rod, a dense net plate, a clockwork spring and an arc plate, the device conducts secondary screening on conveyed ground powdery substances, and the yield of grinding solid substances into powdery substances through the pulverizer is effectively increased; and the subsequent direct use efficiency of the ground powdery substances is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding mills, in particular to a screening mechanism of a grinding mill. Background Art

[0002] The grinding mill is a kind of universal powder making equipment, which is a device that grinds the larger solid matter inside into finer small particles of powder.

[0003] When a grinding mill is used to grind solid materials, the materials ground into powder by the rollers inside the grinding mill flow through the analyzer under the action of a blower and are then screened by the analyzer. The powdered materials that meet the grinding requirements can enter the inside of the silo through a conveying pipe, while the materials that do not meet the grinding requirements continue to be ground by the rollers under the action of the analyzer. However, some larger ground powder particles are easy to pass through the analyzer smoothly along with the powdered grinding materials. These larger ground powder particles are mixed with the powdered grinding materials, which can easily reduce the yield rate of the grinding mill for grinding solid materials into powdered materials, and affect the subsequent direct use efficiency of the ground powdered materials. Therefore, a screening mechanism of a grinding mill is proposed to address the above problems. Utility Model Content

[0004] The utility model aims to provide a screening mechanism for a grinding mill to solve the problem that some larger ground powder particles are easy to pass through an analyzer smoothly with the powdered grinding material, so that these larger ground powder particles are mixed with the powdered grinding material, which is easy to reduce the yield rate of the grinding mill for grinding solid materials into powdered materials, and affect the subsequent direct use efficiency of the ground powdered materials.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A screening mechanism of a grinding mill comprises a body, a blast pipe and a conveying pipe, the body having an air blast pipe fixedly connected to the outside, the body having an air conveying pipe fixedly connected to the outside, the conveying pipe having an electric motor fixedly connected to the inside, the motor main shaft end having an electric rotating shaft fixedly connected to the outside, the rotating shaft having a first bearing fixedly connected to the outside, the first bearing having an electric rotating shaft fixedly connected to the outside, the first bearing having an electric rotating shaft fixedly connected to the outside, the rotating shaft having a first bevel gear fixedly connected to the outside, the first bevel gear having an electric rotating shaft meshingly connected to the outside, the second bevel gear having an electric rotating shaft fixedly connected to the outside, the electric rotating shaft having an arc-shaped spring fixedly connected to the outside, the transmission shaft having an arc-shaped spring fixedly connected to the outside, the transmission shaft having a brush rod fixedly connected to the outside, the transmission shaft having a second bearing fixedly connected to the outside, the second bearing having a dense mesh plate fixedly connected to the outside, the conveying pipe having an electric rotating shaft fixedly connected to the inside, the fixed shaft having an electric rotating shaft fixedly connected to the outside, the electric rotating shaft having an electric rotating shaft fixedly connected to the outside, the electric rotating shaft having an electric rotating shaft fixedly connected to the outside, the electric rotating shaft having an arc-shaped spring fixedly connected to the outside, the electric rotating shaft having an electric rotating shaft ...

[0007] Preferably, there are two support columns, which are symmetrically arranged on both sides of the fixed shell. The fixed shell is fixedly connected to the conveying pipe through the support columns, and the support columns are respectively on the same plane as the rotating shaft and the transmission shaft and are perpendicular to each other.

[0008] Preferably, there are two first bearings in total, and the first bearings are both arranged on the inner side of the fixed shell, and the rotating shaft and the transmission shaft are both fixedly connected to the fixed shell through the first bearings.

[0009] Preferably, the arc-shaped spring piece and the brush rod are arranged on one side with bristles both in close contact with the dense mesh plate, the arc-shaped spring piece is in close contact with the inner wall of the conveying tube, and the arc-shaped spring piece and the brush rod are symmetrically arranged on both sides of the transmission shaft.

[0010] Preferably, the arc plate is arranged within the rotation range of the arc spring piece, the arc plate is arranged on the inner side of the collecting box, and the side of the arc plate close to the dense mesh plate and the inner wall of the side of the collecting box close to the dense mesh plate are not in the same vertical plane with the side of the dense mesh plate away from the arc spring piece.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, through the arrangement of the motor, the rotating shaft, the first bevel gear, the second bevel gear, the transmission shaft, the arc-shaped spring piece, the brush rod, the dense mesh plate, the spring spring and the arc plate, in the process of the mill conveying the ground powdered material to the silo through the conveying pipe, the powdered material that meets the grinding requirements can smoothly pass through the dense mesh plate to be collected inside the silo, and some larger ground powder particles mixed in the powdered material can be intercepted by the dense mesh plate. At the same time, under the step-by-step control of the transmission shaft by the motor, the transmission shaft scrapes off the larger ground powder particles intercepted by the dense mesh plate through the arc-shaped spring piece, and pushes the larger ground powder particles to the inside of the collection box when the arc-shaped spring piece passes through the arc plate. This device effectively enhances the yield rate of the mill grinding solid materials into powdered materials by performing secondary screening on the conveyed ground powdered material, and improves the subsequent direct use efficiency of the ground powdered material. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the delivery pipe of the utility model;

[0015] Figure 3 This is a schematic diagram of the side structure of the brush rod of the utility model;

[0016] Figure 4 For this utility model Figure 3Schematic diagram of the structure at A in the middle;

[0017] Figure 5 It is a schematic diagram of the internal structure of the fixed shell of the utility model.

[0018] In the figure: 1. body; 2. blast pipe; 3. delivery pipe; 4. motor; 5. rotating shaft; 6. first bearing; 7. fixed shell; 8. first bevel gear; 9. second bevel gear; 10. transmission shaft; 11. arc spring; 12. brush rod; 13. second bearing; 14. dense mesh plate; 15. fixed shaft; 16. spring; 17. arc plate; 18. collection box; 19. support column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] See also Figure 1-5 , the utility model provides a technical solution:

[0022] A screening mechanism of a grinding mill comprises a machine body 1, a blast pipe 2 and a conveying pipe 3, the blast pipe 2 is fixedly connected to the outside of the machine body 1, the conveying pipe 3 is fixedly connected to the outside of the machine body 1, the inner side of the conveying pipe 3 is fixedly connected to a motor 4, the end of the main shaft of the motor 4 is fixedly connected to a rotating shaft 5, the outer side of the rotating shaft 5 is fixedly connected to a first bearing 6, the outer side of the first bearing 6 is fixedly connected to a fixed shell 7, the outer side of the rotating shaft 5 is fixedly connected to a first bevel gear 8, the outer side of the first bevel gear 8 is meshedly connected to a second bevel gear 9, the outer side of the second bevel gear 9 is fixedly connected to the A transmission shaft 10 is fixedly connected, an arc-shaped spring piece 11 is fixedly connected to the outer side of the transmission shaft 10, a brush rod 12 is fixedly connected to the outer side of the transmission shaft 10, a second bearing 13 is fixedly connected to the outer side of the transmission shaft 10, a dense mesh plate 14 is fixedly connected to the outer side of the second bearing 13, a fixed shaft 15 is fixedly connected to the inner side of the conveying pipe 3, a clockwork spring 16 is fixedly connected to the outer side of the fixed shaft 15, an arc plate 17 is fixedly connected to the outer side of the clockwork spring 16, a collecting box 18 is connected through the conveying pipe 3, and a support column 19 is fixedly connected to the outer side of the fixed shell 7.

[0023] There are two support columns 19, which are symmetrically arranged on both sides of the fixed shell 7. The fixed shell 7 is fixedly connected to the conveying pipe 3 through the support columns 19. The support columns 19 are respectively on the same plane with the rotating shaft 5 and the transmission shaft 10 and are perpendicular to each other, which is convenient for stably supporting the fixed shell 7; there are two first bearings 6, which are both arranged on the inner side of the fixed shell 7. The rotating shaft 5 and the transmission shaft 10 are fixedly connected to the fixed shell 7 through the first bearing 6, which is convenient for the rotating shaft 5 to perform relatively stable transmission control on the transmission shaft 10; the arc-shaped spring piece 11 and the brush rod 12 are provided with bristles. The arc plate 17 is arranged within the rotation range of the arc plate 11, and the arc plate 17 is arranged on the inner side of the collecting box 18. The inner wall of the side of the arc plate 17 close to the dense mesh plate 14 and the inner wall of the side of the collecting box 18 close to the dense mesh plate 14 are not in the same vertical plane as the side of the dense mesh plate 14 away from the arc plate 11, so that the larger abrasive powder particles intercepted by the dense mesh plate 14 can be screened to the inner side of the collecting box 18.

[0024] Working process: During use, the equipment is powered by an external power supply. The mill grinds the solid material into powder, and under the action of the blower, the analyzer inside the mill body 1 analyzes the powdered material, and then the ground powdered material is transported to the hopper through the conveying pipe 3. In the process of the ground powdered material passing through the conveying pipe 3, most of the ground powdered material that meets the requirements can smoothly pass through the dense mesh plate 14 fixedly connected to the inside of the conveying pipe 3, while the part of the ground powdered material that is mixed with the qualified ground powdered material is intercepted by the dense mesh plate 14. At this time, the power is started. The machine 4 can drive the rotating shaft 5 fixedly connected to its main shaft to rotate inside the fixed shell 7 through the first bearing 6 with a sealing function, and at the same time, the rotating shaft 5 drives the first bevel gear 8 fixedly connected to its outer side to rotate, and then the first bevel gear 8 rotates inside the fixed shell 7 through the second bevel gear 9 meshingly connected to it, so that the second bevel gear 9 drives the transmission shaft 10 fixedly connected to it to rotate on the axial centerline position of the conveying pipe 3. Because the transmission shaft 10 is fixedly connected to the fixed shell 7 and the dense mesh plate 14 through the first bearing 6 and the second bearing 13 which also has a sealing function, the transmission shaft 10 can be fixedly connected to the conveying pipe 3. The inner side rotates stably, and then the transmission shaft 10 drives the arc-shaped spring piece 11 and the brush rod 12 fixedly connected to the outer side thereof to rotate closely against the dense mesh plate 14, so that the brush rod 12 cleans the powdery material embedded in the inner side of the dense mesh plate 14, and ensures that the dense mesh plate 14 passes through the qualified ground powdery material. In the process of rotating toward its outer arc direction, the arc-shaped spring piece 11 continuously scrapes and cuts the larger ground powdery particles intercepted by the dense mesh plate 14 to a position close to the inner wall of the conveying pipe 3. After the arc-shaped spring piece 11 moves to the position of the arc plate 17 inside the conveying pipe 3, the arc-shaped spring piece 11 gradually becomes larger through its own elastic curvature, so as to This pushes the arc plate 17 to exert a contraction force on the spring spring 16 inside it, and gradually rotates to a position away from the center of the conveying pipe 3 with the axis of the fixed shaft 15 as the center, so that the arc spring 11 can send the larger ground powder particles it scrapes into the inside of the collecting box 18. After the arc spring 11 rotates out of the range of the arc plate 17, the arc plate 17 is reset under the action of the spring spring 16. This device effectively enhances the yield rate of the mill in grinding solid materials into powdered materials by performing secondary screening on the conveyed ground powdered materials, thereby improving the subsequent direct use efficiency of the ground powdered materials.

[0025] 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 screening mechanism for a grinding mill, comprising a machine body (1), a blast pipe (2) and a conveying pipe (3), characterized in that: The outer side of the machine body (1) is fixedly connected to a blast pipe (2), the outer side of the machine body (1) is fixedly connected to a delivery pipe (3), the inner side of the delivery pipe (3) is fixedly connected to a motor (4), the end of the main shaft of the motor (4) is fixedly connected to a rotating shaft (5), the outer side of the rotating shaft (5) is fixedly connected to a first bearing (6), the outer side of the first bearing (6) is fixedly connected to a fixed shell (7), the outer side of the rotating shaft (5) is fixedly connected to a first bevel gear (8), the outer side of the first bevel gear (8) is meshingly connected to a second bevel gear (9), the outer side of the second bevel gear (9) is fixedly connected to a transmission shaft (10), the transmission An arc-shaped spring sheet (11) is fixedly connected to the outside of the shaft (10), a brush rod (12) is fixedly connected to the outside of the transmission shaft (10), a second bearing (13) is fixedly connected to the outside of the second bearing (13), a dense mesh plate (14) is fixedly connected to the outside of the delivery pipe (3), a fixed shaft (15) is fixedly connected to the inside of the delivery pipe (3), a spring (16) is fixedly connected to the outside of the fixed shaft (15), an arc plate (17) is fixedly connected to the outside of the spring (16), a collection box (18) is connected through the delivery pipe (3), and a support column (19) is fixedly connected to the outside of the fixed shell (7).

2. A screening mechanism for a grinding mill according to claim 1, characterized in that: There are two support columns (19) in total. The support columns (19) are symmetrically arranged on both sides of the fixed shell (7). The fixed shell (7) is fixedly connected to the conveying pipe (3) via the support columns (19). The support columns (19) are respectively located on the same plane as the rotating shaft (5) and the transmission shaft (10) and are perpendicular to each other.

3. The screening mechanism of a grinding mill according to claim 1, characterized in that: There are two first bearings (6) in total, and the first bearings (6) are all arranged on the inner side of the fixed shell (7). The rotating shaft (5) and the transmission shaft (10) are both fixedly connected to the fixed shell (7) via the first bearings (6).

4. The screening mechanism of a grinding mill according to claim 1, characterized in that: The arc-shaped spring piece (11) and the brush rod (12) are arranged such that the bristle side thereof is in close contact with the dense mesh plate (14), the arc-shaped spring piece (11) is in close contact with the inner wall of the conveying pipe (3), and the arc-shaped spring piece (11) and the brush rod (12) are symmetrically arranged on both sides of the transmission shaft (10).

5. The screening mechanism of a grinding mill according to claim 1, characterized in that: The arc plate (17) is arranged within the rotation range of the arc-shaped spring piece (11), and the arc plate (17) is arranged inside the collection box (18). The side of the arc plate (17) close to the dense mesh plate (14) and the inner wall of the side of the collection box (18) close to the dense mesh plate (14) are not in the same vertical plane as the side of the dense mesh plate (14) away from the arc-shaped spring piece (11).

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