An automatic air filter

Abstract

The utility model discloses an automatic air filter belongs to air filtration technical field. An automatic air filter, including fixed casing, cleaning cylinder, air outlet subassembly, cleaning cylinder transmission part and cleaning brush transmission part. The utility model discloses an automatic air filter, and the filter screen is fixed on the cylindrical frame of cleaning cylinder through the filter screen fixing ring, and does the circular movement with cleaning cylinder, and transmission part is less, and the filter screen is long in service time, and stable in operation, the utility model can be used for the hot air filtration of the air hood of the yankee dryer of the paper machine of the paper for daily use, and can also be used as the air filtration of other places.

Description

Technical Field

[0001] This utility model relates to the field of air filtration technology, and more specifically, to an automatic air filter. Background Technology

[0002] The Yankee cylinder dries the paper web to the required specifications, significantly increasing its strength to meet quality standards. Another function of the Yankee cylinder is to provide conveyor support, similar to a belt. The equipment used with the Yankee cylinder is called an air hood, which can be categorized into steam hoods and gas hoods based on the type of gas used.

[0003] However, commercially available automatic air filters have reciprocating filters with many transmission components, leading to frequent malfunctions and easy misalignment and damage to the filters, which affects normal production. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] The purpose of this utility model is to provide an automatic air filter to solve the problems mentioned in the background art, such as the reciprocating motion of existing filters, numerous transmission components, frequent failures, easy deviation and damage of the filter, and impact on normal production.

[0006] 2. Technical Solution

[0007] An automatic air filter includes a fixed housing, a cleaning cylinder, an air outlet assembly, a cleaning cylinder drive component, and a cleaning brush drive component;

[0008] The fixed housing includes an air inlet cone, an outer shell, an outer shell cover plate, an outer shell sealing plate, a screen changing cover plate, and an observation mirror. One end of the outer shell is sealed and fixed to the outer shell cover plate through the outer shell sealing plate, and the other end of the outer shell is sealed and fixed to the air inlet cone through a flange and bolts. The screen changing cover plate is located on the side of the outer shell, and the observation mirror is installed on the side of the outer shell.

[0009] The cleaning cylinder includes a cleaning cylinder, a windproof cap, a cylindrical frame, a fixed roller, a limiting ring, a filter screen, a filter screen fixing ring, and a driven sprocket. The cleaning cylinder is welded from a carbon steel cylinder. The contact part between the cleaning cylinder and the filter screen is welded from the cylindrical frame, which is composed of 304 stainless steel bars and 304 hoops. The filter screen is fixed to the cylindrical frame of the cleaning cylinder by the filter screen fixing ring. The driven sprocket is fixed to the cleaning cylinder and is formed by welding a chain around the cleaning cylinder. The fixed roller is located between the cleaning cylinder and the outer shell.

[0010] The air outlet assembly includes an air outlet and an air outlet bracket. The air outlet is fixed to the air outlet bracket by bolts, and the air outlet bracket is fixed to the outer shell cover plate of the fixed housing by bolts.

[0011] The cleaning cylinder transmission component includes a reducer base, a cycloidal reducer, and a drive sprocket. The reducer base is fixed to the outer shell cover plate of the fixed housing by bolts. The cycloidal reducer is installed on the reducer base. The output end of the cycloidal reducer is connected to the drive sprocket, and the drive sprocket is meshed with the driven sprocket.

[0012] The cleaning brush transmission component includes a cleaning section fixing seat, a worm gear reducer, a drive shaft, a driven shaft, a bearing with a mounting seat, a chain, a light shaft, a light shaft seat, a proximity switch, a fixing plate, a suction pipe, a cup brush, and a bellows cover. The cleaning section fixing seat is welded to the outer cylinder of the fixed housing. The reducer seat is bolted to the cleaning section fixing seat. The fixing plate is fitted onto the light shaft. Both ends of the chain are bolted to the fixing plate. The proximity switch is installed at both ends of the cleaning section fixing seat. The cup brush is connected to the suction pipe, which is fixed to the fixing plate. The light shaft seat is installed under the fixing plate. The bearing with a mounting seat is fixed to both sides of the cylindrical frame. The driven shaft is used in conjunction with the bearing with a mounting seat.

[0013] Preferably, the observation scope is mainly made of carbon steel profiles welded together, and the scope is made of heat-resistant thick glass.

[0014] Preferably, the screen replacement cover plate consists of a cover plate, quick clamps, and hinges. The bottom end of the cover plate is rotatably connected to the outer casing via the hinges, and the quick clamps are installed on the side of the outer casing to fix the cover plate.

[0015] Preferably, the cleaning cylinder is welded from a carbon steel cylinder body, and the part in contact with the filter screen is a cylindrical frame welded from stainless steel rods and hoops, and the filter screen material is 20 mesh 404 stainless steel.

[0016] Preferably, the proximity switch is mounted at both ends of the cleaning section mounting base.

[0017] Preferably, the air inlet cone includes a tapered air inlet pipe and an inlet flange, and the air inlet cone is connected to the outer casing through the tapered air inlet pipe and the inlet flange.

[0018] 3. Beneficial effects

[0019] Compared with existing technologies, the advantages of this utility model are:

[0020] 1. The automatic air filter of this utility model has a filter screen fixed to the cylindrical frame of the cleaning cylinder by a filter screen fixing ring. The filter screen moves in a circular motion with the cleaning cylinder. It has fewer transmission parts, fewer failures, longer filter screen service life, and stable operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model from the left side;

[0022] Figure 2 This is a schematic diagram of the fixed housing of this utility model;

[0023] Figure 3 This is a schematic diagram of the cleaning cylinder of this utility model;

[0024] Figure 4 This is a schematic diagram of the air outlet of this utility model;

[0025] Figure 5 This is a schematic diagram of the cleaning cylinder transmission component of this utility model;

[0026] Figure 6 This is a disassembled schematic diagram of the cleaning brush transmission component of this utility model;

[0027] Figure 7 This is a top-view disassembled schematic diagram of part of the structure of this utility model;

[0028] The labels in the diagram are as follows: 1. Fixed housing; 2. Cleaning cylinder; 3. Air outlet assembly; 4. Cleaning cylinder transmission components; 5. Cleaning brush transmission components;

[0029] 11. Inlet cone; 12. Outer casing assembly; 13. Screen replacement cover; 14. Sight glass; 21. Cleaning cylinder; 22. Driven sprocket; 23. Cylindrical frame; 24. Filter screen; 25. Filter screen retaining ring; 26. Limiting ring; 27. Windshield cap; 28. Fixed roller; 31. Air outlet; 32. Air outlet bracket; 41. Reducer base; 42. Cycloidal reducer; 43. Drive sprocket; 51. Drive shaft; 52. Cleaning section fixing. 53. Chain; 54. Fixing plate; 55. Optical shaft seat; 56. Optical shaft; 57. Suction pipe; 58. Cup brush; 59. Driven shaft; 510. Bearing with seat; 511. Bellows cover; 512. Worm gear reducer; 513. Proximity switch; 131. Cover plate; 132. Quick clamp; 111. Small flange at the inlet end; 112. Conical air inlet pipe; 121. Outer shell; 122. Outer shell cover plate; 123. Outer shell sealing plate. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Please see Figure 1-7 This utility model provides a technical solution:

[0034] An automatic air filter includes a fixed housing 1, a cleaning cylinder 2, an air outlet assembly 3, a cleaning cylinder transmission component 4, and a cleaning brush transmission component 5;

[0035] The fixed housing 1 includes an air inlet cone 11, an outer housing 121, an outer housing cover plate 122, an outer housing sealing plate 123, a screen changing cover plate 13, and an observation mirror 14. One end of the outer housing 121 is sealed and fixed to the outer housing cover plate 122 through the outer housing sealing plate 123, and the other end of the outer housing 121 is sealed and fixed to the air inlet cone 11 through a flange and bolts. The screen changing cover plate 13 is located on the side of the outer housing 121, and the observation mirror 14 is installed on the side of the outer housing 121.

[0036] The cleaning cylinder 2 includes a cleaning cylinder 21, a windproof cap 27, a cylindrical frame 23, a fixed roller 28, a limiting ring 26, a filter screen 24, a filter screen fixing ring 25, and a driven sprocket 22. The cleaning cylinder 21 is welded from a carbon steel cylinder. The contact part between the cleaning cylinder 21 and the filter screen 24 is welded from the cylindrical frame 23, which is made of 304 stainless steel rods and 304 hoops. The filter screen 24 is fixed to the cylindrical frame 23 of the cleaning cylinder 21 by the filter screen fixing ring 25. The driven sprocket 22 is fixed to the cleaning cylinder 21 and is formed by welding a chain around the cleaning cylinder 21. The fixed roller 28 is located between the cleaning cylinder 21 and the outer shell 121.

[0037] The air outlet assembly 3 includes an air outlet 31 and an air outlet bracket 32. The air outlet 31 is fixed to the air outlet bracket 32 ​​by bolts, and the air outlet bracket 32 ​​is fixed to the outer shell cover plate 122 of the fixed housing 1 by bolts.

[0038] The cleaning cylinder transmission component 4 includes a reducer seat 41, a cycloidal reducer 42, and a drive sprocket 43. The reducer seat 41 is fixed to the outer shell cover plate 122 of the fixed housing 1 by bolts. The cycloidal reducer 42 is installed on the reducer seat 41. The output end of the cycloidal reducer 42 is connected to the drive sprocket 43. The drive sprocket 43 is meshed with the driven sprocket 22.

[0039] The cleaning brush transmission component 5 includes a cleaning part fixing seat 52, a worm gear reducer 512, a drive shaft 51, a driven shaft 59, a seated bearing 510, a chain 53, a light shaft 56, a light shaft seat 55, a proximity switch 513, a fixing plate 54, a suction pipe 57, a cup brush 58, and a bellows cover 511. The cleaning part fixing seat 52 is welded to the outer cylinder of the outer shell 121 of the fixed housing 1. The reducer seat 41 is fixed to the cleaning part fixing seat 52 with bolts. The fixing plate 54 is fitted onto the light shaft 56. The two ends of the chain 53 are fixed to the fixing plate 54 with bolts. The proximity switch 513 is installed at both ends of the cleaning part fixing seat 52. The cup brush 58 is connected to the suction pipe 57, which is fixed to the fixing plate 54. The light shaft seat 55 is installed under the fixing plate 54. The seated bearing 510 is fixed to both sides of the cylindrical frame 23. The driven shaft 59 is used in conjunction with the seated bearing 510.

[0040] Specifically, the driven sprocket 22 is formed by welding a chain around the cleaning cylinder 21. The driving sprocket 43 engages with and drives the driven sprocket 22 of the cleaning cylinder 2, causing the cleaning cylinder 2 to rotate.

[0041] Furthermore, the main material of the observation scope 14 is carbon steel profile welded together, and the scope is made of heat-resistant thick glass. The observation scope 14 is mainly used to facilitate observation of the working condition of the internal cleaning cylinder 21.

[0042] It is worth noting that the screen replacement cover plate 13 consists of a cover plate 131, a quick clamp 132, and a hinge. The bottom end of the cover plate 131 is rotatably connected to the outer shell 121 via the hinge. The quick clamp 132 is installed on the side of the outer shell 121 to fix the cover plate 131. It is mainly used for quick screen replacement, achieving the effect of saving time and effort.

[0043] It is worth noting that the cleaning cylinder 21 is welded from a carbon steel cylinder, and the part in contact with the filter screen 24 is a cylindrical frame 23 welded from stainless steel rods and hoops. The filter screen 24 is made of 20-mesh 404 stainless steel. The main function of the cleaning cylinder 2 is for air filtration.

[0044] In addition, proximity switches 513 are installed at both ends of the cleaning section mounting base 52, and the mounting plate 54 reciprocates under the traction of the chain 53, ensuring that the mounting plate 54 reciprocates under the traction of the chain 53.

[0045] Working principle: Since the air outlet 31 of the filter is connected to the inlet of the fan, the dusty air enters the automatic air filter from the small flange 111 at the inlet end of the air inlet cone 11. Under the action of negative pressure, it passes through the filter screen 24 of the cleaning cylinder 21 and enters the cleaning cylinder 21. The clean air is discharged from the air outlet 31. The paper scraps are blocked on the filter screen 24 of the cleaning cylinder 21. The cleaning cylinder 21 rotates circumferentially under the drive of the cleaning cylinder transmission component 4. The cup brush 58 reciprocates along the axial direction to clean the filter screen 24 of the cleaning cylinder 21 under the drive of the cleaning brush transmission component 5. The paper scraps that are cleaned off are discharged through the suction pipe 57 connected to the cup brush 58.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic air filter, characterized by: It includes a fixed housing (1), a cleaning cylinder (2), an air outlet assembly (3), a cleaning cylinder transmission component (4), and a cleaning brush transmission component (5); The fixed housing (1) includes an air inlet cone (11), an outer housing assembly (12), a screen changing cover (13), and an observation mirror (14). The outer housing assembly (12) also includes an outer housing (121), an outer housing cover (122), and an outer housing sealing plate (123). One end of the outer housing (121) is sealed and fixed to the outer housing cover (122) through the outer housing sealing plate (123). The other end of the outer housing (121) is sealed and fixed to the air inlet cone (11) through a flange and bolts. The screen changing cover (13) is located on the side of the outer housing (121), and the observation mirror (14) is installed on the side of the outer housing (121). The cleaning cylinder (2) includes a cleaning cylinder (21), a windproof cap (27), a cylindrical frame (23), a fixed roller (28), a limiting ring (26), a filter screen (24), a filter screen fixing ring (25), and a driven sprocket (22). The cleaning cylinder (21) is welded from a carbon steel cylinder. The contact part between the cleaning cylinder (21) and the filter screen (24) is welded from the cylindrical frame (23). The cylindrical frame (23) is welded from 304 stainless steel bars and 304 hoops. The filter screen (24) is fixed to the cylindrical frame (23) of the cleaning cylinder (21) by the filter screen fixing ring (25). The driven sprocket (22) is fixed to the cleaning cylinder (21) and is formed by welding a chain around the cleaning cylinder (21). The fixed roller (28) is located between the cleaning cylinder (21) and the outer shell (121). The air outlet assembly (3) includes an air outlet (31) and an air outlet bracket (32). The air outlet (31) is fixed to the air outlet bracket (32) by bolts, and the air outlet bracket (32) is fixed to the outer shell cover plate (122) of the fixed shell (1) by bolts. The cleaning cylinder transmission component (4) includes a reducer seat (41), a cycloidal reducer (42), and a drive sprocket (43). The reducer seat (41) is fixed to the outer shell cover plate (122) of the fixed housing (1) by bolts. The cycloidal reducer (42) is installed on the reducer seat (41). The output end of the cycloidal reducer (42) is connected to the drive sprocket (43). The drive sprocket (43) is meshed with the driven sprocket (22). The cleaning brush transmission component (5) includes a cleaning section fixing seat (52), a worm gear reducer (512), a drive shaft (51), a driven shaft (59), a bearing with a seat (510), a chain (53), a light shaft (56), a light shaft seat (55), a proximity switch (513), a fixing plate (54), a suction pipe (57), a cup brush (58), and a bellows cover (511). The cleaning section fixing seat (52) is welded to the outer cylinder of the outer shell (121) of the fixing housing (1). The reducer seat (41) is fixed to the cleaning section fixing seat with bolts. On 52), the fixing plate (54) is sleeved on the optical axis (56), the two ends of the chain (53) are fixed to the fixing plate (54) with bolts, the proximity switch (513) is installed on both ends of the cleaning part fixing seat (52), the cup brush (58) is connected to the suction pipe (57), the suction pipe (57) is fixed on the fixing plate (54), the optical axis seat (55) is installed under the fixing plate (54), the seated bearing (510) is fixed on both sides of the cylindrical frame (23), and the driven shaft (59) is used in conjunction with the seated bearing (510).

2. An automatic air filter according to claim 1, characterized in that: The observation sight (14) is mainly made of carbon steel profiles welded together, and the sight is made of heat-resistant thick glass.

3. An automatic air filter according to claim 1, characterized in that: The screen replacement cover plate (13) consists of a cover plate (131), a quick clamp (132) and a hinge. The bottom end of the cover plate (131) is rotatably connected to the outer shell (121) via the hinge. The quick clamp (132) is installed on the side of the outer shell (121) to fix the cover plate (131).

4. An automatic air filter according to claim 1, characterized in that: The cleaning cylinder (21) is welded from a carbon steel cylinder, and the part in contact with the filter screen (24) is a cylindrical frame (23) welded from stainless steel rods and hoops. The filter screen (24) is made of 404 stainless steel.

5. An automatic air filter according to claim 1, characterized in that: The proximity switch (513) is installed at both ends of the cleaning section mounting base (52).

6. An automatic air filter according to claim 1, characterized in that: The air inlet cone (11) includes a tapered air inlet pipe (112) and an inlet end flange (111), and the air inlet cone (11) is connected to the outer shell (121) through the tapered air inlet pipe (112) and the inlet end flange (111).

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