Dust removal bag and dust collector containing the same

Abstract

The present invention belongs to the technical field of dust removal equipment, and provides a dust bag and a dust collector containing the dust bag, the dust collector comprising a dust bag and a shell, both ends of the shell are open structures and hinged with a cover plate, a partition is fixedly installed in the shell and the partition divides the shell into an air inlet chamber and an air outlet chamber, the shell is provided with an air inlet pipe and an air outlet pipe respectively connected to the air inlet chamber and the air outlet chamber, a rotating ring is rotatably installed in the middle of the partition, and a dust bag is provided on the rotating ring. Compared with the prior art, the beneficial effects of the present invention are as follows: because the bag body is in a fast rotating state, a large amount of impurities and dust on the surface of the bag body are detached under the action of centrifugal force, the self-cleaning of the bag body is achieved, and the pulling impact of the bag body is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of dust removal equipment, and in particular relates to a dust removal bag and a dust collector containing the dust removal bag. Background Art

[0002] Bag dust collector is a very common dust removal equipment in industrial production processes. The bag dust collector sends dust-containing air into the dust collector box through the air inlet pipe. The dust-containing air passes through the bags, and the dust in it is filtered by the bags and falls into the ash hopper for collection. The filtered air is discharged into the atmosphere.

[0003] At present, the dust attached to the bag of the bag collector is blown into the inside of the filter cartridge by reverse high-pressure gas, so that the gas is blown out from the inside of the bag to the outside, and the dust attached to the outside of the bag falls into the ash hopper. When the high-pressure gas is blown to the inside of the bag through the filter cartridge, the gas with dust on the outside of the bag will temporarily stop blowing into the bag, which may affect its filtration efficiency. In response to the above technical problems, a Chinese patent with patent announcement number CN219290890U has a connecting rod that instantly rebounds downward under the action of a spring tube when in use, so that the bag body is instantly tightened, thereby effectively shaking off the dust on the bag body. However, the bag body will pull the fiber structure of the bag body when tightened, thereby increasing the gap in the fiber structure of the bag body, and further resulting in poor filtration effect of the bag body. Summary of the invention

[0004] The object of the present invention is to provide a dust removal bag and a dust collector containing the dust removal bag, aiming to solve the technical problem in the prior art that when cleaning impurities on the bag, the bag structure itself is damaged, resulting in poor filtering effect.

[0005] The present invention is achieved in this way. A dust collector includes a dust bag and a shell, both ends of the shell are open structures and are hinged with cover plates, a partition is fixedly installed in the shell and the partition divides the shell into an air inlet chamber and an air outlet chamber, an air inlet pipe connected to the air inlet chamber is provided on the shell, and an air outlet pipe connected to the air outlet chamber is provided on the shell, a rotating ring is rotatably installed in the middle of the partition, a dust bag is provided on the rotating ring, and a supporting grille cylinder for fixing the dust bag is provided on the rotating ring, a rotating power part located in the air outlet chamber is fixedly installed in the shell, the axis of the output shaft of the rotating power part is parallel to the axis of the rotating ring, a gear is fixedly installed at the end of the output shaft of the rotating power part, the gear is meshed with a power gear ring fixedly installed on the rotating ring, and the power gear ring and the rotating ring are coaxially arranged.

[0006] Further technical solution: The dust removal bag includes a bag body, a mounting plate with an annular structure is fixedly installed on the open end of the bag body, the supporting grille cylinder extends into the bag body and abuts against the inner wall of the bag body, and a plurality of sets of fixing screws are arranged on the supporting grille cylinder, the fixing screws pass through the mounting plate and are threadedly connected to the rotating ring.

[0007] Further technical solution: a first mounting cylinder is fixedly installed on the partition, the first mounting cylinder is coaxially arranged with the rotating ring and the first mounting cylinder is located in the air inlet chamber, a coaxially arranged first mounting ring is rotatably installed in the first mounting cylinder, a cleaning cylinder for cleaning the cloth bag body is fixedly installed on the first mounting ring, the cleaning cylinder is coaxial with the first mounting ring and the cleaning cylinder is arranged around the cloth bag body, a gap is provided between the upper surface of the cleaning cylinder and the lower surface of the rotating ring, and the first mounting ring is driven to rotate when the rotating ring rotates.

[0008] Further technical solution: A first bevel gear located in a first mounting tube is rotatably mounted on the partition, the first bevel gear is located between the first mounting ring and the rotating ring, the first bevel gear is meshed with first bevel gear rings on the upper and lower sides, the first bevel gear rings on the upper and lower sides are respectively fixedly connected to the rotating ring and the first mounting ring, and the first bevel gear ring is coaxially arranged with the rotating ring.

[0009] Further technical solution: a gap is provided between the inner wall of the cleaning cylinder and the outer surface of the bag body, a plurality of groups of guide plates are fixedly installed on the inner wall of the cleaning cylinder, the plurality of groups of guide plates are distributed in a circular array around the axis of the cleaning cylinder, an angle is provided between the guide plates and the radial direction of the cleaning cylinder, a gap is provided between the end of the guide plate away from the cleaning cylinder and the outer surface of the bag body, a brush is provided on the leeward side of the guide plate, the brush is distributed along its length and in contact with the surface of the bag body, a through groove is provided at the position where the guide plate is installed on the cleaning cylinder, the air flowing along the guide plate leaves the cleaning cylinder through the through groove, and a set distance is provided between the top of the through groove and the rotating ring.

[0010] Further technical solution: A coaxially arranged second mounting tube is provided on the first mounting tube, and a connecting plate with an annular structure is fixedly installed on the outer side of the second mounting tube. The connecting plate is fixedly connected to the bottom surface of the first mounting tube by fixing screws. The connecting plate, the first mounting tube and the second mounting tube form a collecting chamber with an annular structure, and a filter hole connected to the collecting chamber is opened on the side wall of the first mounting tube.

[0011] Further technical solution: A second mounting ring is rotatably mounted on the cleaning cylinder, the second mounting ring is located at the top of the cleaning cylinder and a spiral blade is fixedly mounted on the second mounting ring, the spiral blades are distributed around the outer surface of the cleaning cylinder, the spiral blades are in sliding contact with the inner wall of the second mounting cylinder, and the top height of the spiral blades and the second mounting cylinder is higher than the top height of the through groove.

[0012] Further technical solution: A second bevel gear is rotatably installed in the first mounting tube, and the second bevel gear is meshed with second bevel gear rings on the upper and lower parts. The second bevel gear ring is coaxially arranged with the first mounting tube, and two sets of second bevel gear rings are fixedly connected to the first mounting ring and the second mounting ring respectively.

[0013] Further technical solution: A coaxially arranged shielding ring is fixedly installed on the bottom of the second mounting tube, and the inner diameter of the shielding ring is the same as the inner diameter of the cleaning tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The rotating power part drives the rotating ring to rotate through the meshing gears and the power gear ring, and the rotating ring drives the bag body and the supporting grille cylinder to rotate synchronously. Since the bag body is in a fast rotating state, a large amount of impurities and dust on the surface of the bag body are detached under the action of centrifugal force, so that the bag body can be self-cleaned, avoiding the pulling impact of the bag body, and improving the service life and filtering effect of the bag body. When the air carries impurities and contacts the bag body, it will collide. At the same time, since the rotation of the bag body has a large kinetic energy, the impurities will obtain a large kinetic energy, so that the impurities are kept away from the bag body, reducing the probability of impurities adhering to the bag body, and further improving the filtering effect of the bag body.

[0016] 2. Since the guide plate is in a fast rotation state, the impurities located in the area between the bag body and the cleaning cylinder will move along the guide plate under the push of the guide plate after contacting the guide plate, and then leave the cleaning cylinder through the through groove. When the rotating ring drives the bag body to rotate, some impurities on the surface of the bag body will be detached under the action of centrifugal force, and the impurities detached from the bag body will fly out along the tangent direction of the bag body. Since the rotating direction of the rotating ring is opposite to that of the cleaning cylinder, the flying impurities are opposite to the moving direction of the guide plate, and the guide plate is in a fast rotation state. After that, the impurities will move along the guide plate and fly out of the through groove after contacting the guide plate, and then a large amount of impurities in the area between the bag body and the cleaning cylinder can be pushed to the outside of the cleaning cylinder through the guide plate, so that a large amount of impurities are away from the bag body, reducing the number and probability of impurities contacting the bag body, thereby reducing the probability of clogging of the bag body, and improving the use time and filtering effect of the bag body.

[0017] 3. Due to the rapid rotation of the guide plate, the air carrying impurities enters the space surrounded by the second mounting cylinder and the cleaning cylinder through the through groove. At this time, the spiral blades can push the impurities and air in the area to move upward when they rotate. When the impurities rise to the top of the second mounting cylinder, they will enter the collecting chamber, and the air will flow back to the air inlet chamber through the filter holes on the first mounting cylinder, thereby collecting impurities and reducing the impurity content in the air inlet chamber, further reducing the probability of impurities clogging the bag body, and due to the rapid rotation of the guide plate, a steady stream of air will be replenished from the through groove to the space surrounded by the second mounting cylinder and the cleaning cylinder, reducing the probability of dust reflux. At the same time, the cleaning cylinder rotates in opposite directions to the spiral blades. After the air enters the space surrounded by the second mounting cylinder and the cleaning cylinder, it will form an upward airflow along the spiral blades. The upward airflow pushes the impurities to move, so that the spiral blades can complete the pushing and collection of impurities more quickly, further improving the impurity collection effect, and further reducing the number of impurities in the air inlet chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the structure inside the shell of the present invention.

[0020] Figure 3 It is the front view of the cleaning tube in the present invention.

[0021] Figure 4 for Figure 3 A magnified schematic diagram of area A in the middle.

[0022] Figure 5 It is a structural schematic diagram of the cloth bag body in the present invention.

[0023] Figure 6 It is a schematic diagram of the structure of the rotating ring in the present invention.

[0024] Figure 7 This is a schematic structural diagram of the second protective tube in the present invention from a first viewing angle.

[0025] Figure 8 It is a schematic diagram of the structure of the second protective tube from a second viewing angle in the present invention.

[0026] Fig. 9 It is a schematic diagram of the structure of the cleaning cylinder in the present invention.

[0027] Fig.10 It is a bottom view of the guide plate in the present invention.

[0028] In the accompanying drawings: 1. shell; 2. cover plate; 3. air outlet pipe; 4. air inlet pipe; 5. partition; 6. air inlet chamber; 7. air outlet chamber; 8. rotating power part; 9. gear; 10. rotating ring; 11. cloth bag body; 12. mounting plate; 13. supporting grille cylinder; 14. fixing screw; 15. power gear ring; 16. first mounting cylinder; 17. first mounting ring; 18. cleaning cylinder; 19. through groove; 20. guide plate; 21. first bevel gear; 22. first bevel gear ring; 23. second mounting ring; 24. spiral blade; 25. second bevel gear; 26. second bevel gear ring; 27. second mounting cylinder; 28. connecting plate; 29. ​​shielding ring; 30. collecting chamber; 31. filter hole. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0031] like Figure 1-Figure 10 As shown, a dust collector provided by the present invention comprises a dust bag and a shell 1, both ends of the shell 1 are open structures and are hinged with a cover plate 2, a partition 5 is fixedly installed in the shell 1 and the partition 5 divides the shell 1 into an air inlet chamber 6 and an air outlet chamber 7, an air inlet pipe 4 connected to the air inlet chamber 6 is arranged on the shell 1, and an air outlet pipe 3 connected to the air outlet chamber 7 is arranged on the shell 1, a rotating ring 10 is rotatably installed in the middle of the partition 5, a dust bag is arranged on the rotating ring 10, and a supporting grille cylinder 13 for fixing the dust bag is arranged on the rotating ring 10, and the dust bag comprises a bag body 11, and the bag body 11 has an open end fixedly fixed to the end of the bag body 11. A mounting plate 12 with an annular structure is fixedly installed, and a supporting grille tube 13 extends into the cloth bag body 11 and contacts the inner wall of the cloth bag body 11. A plurality of sets of fixing screws 14 are arranged on the supporting grille tube 13. The fixing screws 14 penetrate the mounting plate 12 and are threadedly connected with the rotating ring 10. A rotating power part 8 located in the air outlet cavity 7 is fixedly installed in the shell 1. The axis of the output shaft of the rotating power part 8 is parallel to the axis of the rotating ring 10. A gear 9 is fixedly installed at the end of the output shaft of the rotating power part 8. The gear 9 is meshed with a power gear ring 15 fixedly installed on the rotating ring 10, and the power gear ring 15 is coaxially arranged with the rotating ring 10.

[0032] In actual application of this embodiment, the bag body 11 is passed through the rotating ring 10 so that the mounting plate 12 contacts the rotating ring 10, and then the supporting grille cylinder 13 is inserted into the bag body 11 to support the bag body 11, and the supporting grille cylinder 13 is fixed to the rotating ring 10 by the fixing screws 14. At the same time, the supporting grille cylinder 13 presses the mounting plate 12 onto the rotating ring 10, thereby fixing the bag body 11;

[0033] The gas to be filtered is passed into the air inlet chamber 6 through the air inlet pipe 4. At the same time, the rotating power member 8 drives the rotating ring 10 to rotate through the meshing gear 9 and the power gear ring 15. The rotating ring 10 drives the bag body 11 and the supporting grille cylinder 13 to rotate synchronously. The air in the air inlet chamber 6 passes through the bag body 11 and enters the air outlet chamber 7, and then leaves the shell 1 through the air outlet pipe 3. The dust and impurities in the air are filtered by the bag body 11. Since the bag body 11 is in a fast rotating state, a large amount of impurities and dust on the surface of the bag body 11 are separated under the action of centrifugal force. , realize self-cleaning of the bag body 11, avoid pulling impact on the bag body 11, improve the service life and filtering effect of the bag body 11, and produce collision when the air carries impurities and contacts with the bag body 11. At the same time, since the bag body 11 rotates with greater kinetic energy, the impurities will obtain greater kinetic energy, so that the impurities are away from the bag body 11, reducing the probability of impurities adhering to the bag body 11, and further improving the filtering effect of the bag body 11. After long-term use, the cover 2 can be opened and the bag body 11 can be removed for replacement.

[0034] In an example of this embodiment, the rotating power member 8 is a motor, and of course it can also be other components capable of outputting rotating power, such as a hydraulic motor, which is driven by the motor to rotate the rotating ring 10.

[0035] like Figure 1-Figure 10 As shown, a dust collector provided by the present invention is provided, a first mounting cylinder 16 is fixedly mounted on the partition plate 5, the first mounting cylinder 16 is coaxially arranged with the rotating ring 10 and the first mounting cylinder 16 is located in the air inlet chamber 6, a coaxially arranged first mounting ring 17 is rotatably mounted in the first mounting cylinder 16, a cleaning cylinder 18 for cleaning the bag body 11 is fixedly mounted on the first mounting ring 17, the cleaning cylinder 18 is coaxial with the first mounting ring 17 and the cleaning cylinder 18 is arranged around the bag body 11, a gap is provided between the upper surface of the cleaning cylinder 18 and the lower surface of the rotating ring 10, and the first mounting ring 17 is driven to rotate when the rotating ring 10 rotates.

[0036] Specifically, a first bevel gear 21 located in the first mounting tube 16 is rotatably mounted on the partition 5. The first bevel gear 21 is located between the first mounting ring 17 and the rotating ring 10. The first bevel gear 21 is meshed with first bevel gear rings 22 on the upper and lower sides. The first bevel gear rings 22 on the upper and lower sides are fixedly connected to the rotating ring 10 and the first mounting ring 17 respectively. The first bevel gear ring 22 is coaxially arranged with the rotating ring 10.

[0037] Specifically, a gap is set between the inner wall of the cleaning cylinder 18 and the outer surface of the bag body 11, and a plurality of groups of guide plates 20 are fixedly installed on the inner wall of the cleaning cylinder 18. The plurality of groups of guide plates 20 are distributed in a circular array around the axis of the cleaning cylinder 18. An angle is set between the guide plates 20 and the radial direction of the cleaning cylinder 18. A gap is set between the end of the guide plate 20 away from the cleaning cylinder 18 and the outer surface of the bag body 11. A brush is set on the leeward side of the guide plate 20. The brush is distributed along its length and contacts the surface of the bag body 11. A through groove 19 is opened at the position where the guide plate 20 is installed on the cleaning cylinder 18. The air flowing along the guide plate 20 leaves the cleaning cylinder 18 through the through groove 19, and a set distance is set between the top of the through groove 19 and the rotating ring 10.

[0038] In actual application of this embodiment, the rotating ring 10 rotates through the meshing first bevel gear 21 and the first bevel gear ring 22 to drive the first mounting ring 17 to rotate, and the first mounting ring 17 drives the cleaning cylinder 18 to rotate, and the rotating ring 10 and the cleaning cylinder 18 rotate in opposite directions. When the cleaning cylinder 18 rotates, the brush is located on the leeward side of the guide plate 20;

[0039] Since the guide plate 20 is in a fast rotating state, the impurities located in the area between the bag body 11 and the cleaning cylinder 18 will move along the guide plate 20 under the push of the guide plate 20 after contacting the guide plate 20, and then leave the cleaning cylinder 18 through the through groove 19. When the rotating ring 10 drives the bag body 11 to rotate, the centrifugal force causes some impurities on the surface of the bag body 11 to separate, and the impurities separated from the bag body 11 will fly out along the tangent direction of the bag body 11. Since the rotating ring 10 rotates in the opposite direction to the cleaning cylinder 18, the flying impurities will be The impurities discharged are opposite to the moving direction of the guide plate 20, and the guide plate 20 is in a fast rotating state. After that, the impurities will move along the guide plate 20 and fly out of the through groove 19 after contacting the guide plate 20, and then a large amount of impurities in the area between the bag body 11 and the cleaning cylinder 18 can be pushed to the outside of the cleaning cylinder 18 through the guide plate 20, so that a large amount of impurities are away from the bag body 11, and the number and probability of the impurities contacting the bag body 11 are reduced, thereby reducing the probability of the bag body 11 being blocked, and improving the use time and filtering effect of the bag body 11;

[0040] The surface of the bag body 11 is swept and brushed by the brush on the guide plate 20 , so that impurities on the surface of the bag body 11 are more easily removed, and the cleaning effect of the bag body 11 is further improved.

[0041] like Figure 1-Figure 10 As shown, a dust collector provided by the present invention is provided with a coaxially arranged second mounting cylinder 27 on the first mounting cylinder 16, and a connecting plate 28 with an annular structure is fixedly installed on the outer side surface of the second mounting cylinder 27, and the connecting plate 28 is fixedly connected to the bottom surface of the first mounting cylinder 16 by fixing screws 14, and the connecting plate 28, the first mounting cylinder 16 and the second mounting cylinder 27 form a collecting chamber 30 with an annular structure, and a filter hole 31 connected to the collecting chamber 30 is opened on the side wall of the first mounting cylinder 16.

[0042] Specifically, a second mounting ring 23 is rotatably mounted on the cleaning cylinder 18, the second mounting ring 23 is located at the top of the cleaning cylinder 18 and a spiral blade 24 is fixedly mounted on the second mounting ring 23, the spiral blade 24 is distributed around the outer surface of the cleaning cylinder 18, the spiral blade 24 is in sliding contact with the inner wall of the second mounting cylinder 27, and the top height of the spiral blade 24 and the second mounting cylinder 27 is higher than the top height of the through groove 19.

[0043] Specifically, a second bevel gear 25 is rotatably installed in the first mounting tube 16, and second bevel gear rings 26 are meshed with the second bevel gear 25 at the top and bottom. The second bevel gear ring 26 is coaxially arranged with the first mounting tube 16, and two sets of second bevel gear rings 26 are fixedly connected to the first mounting ring 17 and the second mounting ring 23 respectively.

[0044] Specifically, a coaxially arranged shielding ring 29 is fixedly installed at the bottom of the second mounting cylinder 27 , and the inner diameter of the shielding ring 29 is the same as the inner diameter of the cleaning cylinder 18 .

[0045] In actual application of this embodiment, when the first mounting ring 17 rotates, the second mounting ring 23 is driven to rotate through the second bevel gear 25 and the second bevel gear ring 26. The rotation directions of the first mounting ring 17 and the second mounting ring 23 are opposite, and the second mounting ring 23 drives the spiral blade 24 to rotate synchronously. Due to the rapid rotation of the guide plate 20, the air carrying impurities enters the space surrounded by the second mounting cylinder 27 and the cleaning cylinder 18 through the through groove 19. At this time, when the spiral blade 24 rotates, it can push the impurities and air in the area to move upward. When the impurities rise to the top of the second mounting cylinder 27, they will enter the collecting chamber 30. The air will flow back to the air inlet chamber 6 through the filter hole 31 on the first mounting cylinder 16, thereby realizing the collection of impurities, reducing the impurity content in the air inlet chamber 6, and further reducing the probability of impurities blocking the bag body 11. In addition, due to the rapid rotation of the guide plate 20 The cleaning cylinder 18 rotates rapidly, and a steady stream of air is replenished from the through groove 19 to the space surrounded by the second mounting cylinder 27 and the cleaning cylinder 18, reducing the probability of dust backflow. At the same time, the cleaning cylinder 18 rotates in the opposite direction to the spiral blade 24. After the air enters the space surrounded by the second mounting cylinder 27 and the cleaning cylinder 18, it will form an upward airflow along the spiral blade 24. The upward airflow pushes the impurities to move, so that the spiral blade 24 can complete the pushing and collection of impurities more quickly, further improving the impurity collection effect, and further reducing the amount of impurities in the air intake chamber 6. The shielding ring 29 shields the lower part of the space surrounded by the second mounting cylinder 27 and the cleaning cylinder 18 to prevent air from entering the second mounting cylinder 27 from the lower part of the space surrounded by the second mounting cylinder 27 and the cleaning cylinder 18. The second mounting cylinder 27 can be removed later to clean the impurities in the collection chamber 30.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dust collector, comprising a dust bag and a housing (1), characterized in that: Both ends of the shell (1) are open structures and are hinged with cover plates (2). A partition (5) is fixedly installed in the shell (1) and the partition (5) divides the shell (1) into an air inlet chamber (6) and an air outlet chamber (7). The shell (1) is provided with an air inlet pipe (4) connected to the air inlet chamber (6). The shell (1) is provided with an air outlet pipe (3) connected to the air outlet chamber (7). A rotating ring (10) is rotatably installed in the middle of the partition (5). A dust removal bag is provided on the rotating ring (10). A supporting grille cylinder (13) for fixing a dust bag is arranged on the ring (10); a rotating power member (8) located in the air outlet cavity (7) is fixedly installed in the housing (1); the axis of the output shaft of the rotating power member (8) is parallel to the axis of the rotating ring (10); a gear (9) is fixedly installed at the end of the output shaft of the rotating power member (8); the gear (9) is meshed with a power gear ring (15) fixedly installed on the rotating ring (10); the power gear ring (15) and the rotating ring (10) are coaxially arranged; A first mounting cylinder (16) is fixedly mounted on the partition (5), the first mounting cylinder (16) and the rotating ring (10) are arranged coaxially and the first mounting cylinder (16) is located in the air inlet chamber (6), a coaxially arranged first mounting ring (17) is rotatably mounted in the first mounting cylinder (16), a cleaning cylinder (18) for cleaning the bag body (11) is fixedly mounted on the first mounting ring (17), the cleaning cylinder (18) and the first mounting ring (17) are coaxial and the cleaning cylinder (18) is arranged around the bag body (11), a gap is provided between the upper surface of the cleaning cylinder (18) and the lower surface of the rotating ring (10), and when the rotating ring (10) rotates, the first mounting ring (17) is driven to rotate; A first bevel gear (21) located in a first mounting tube (16) is rotatably mounted on the partition (5); the first bevel gear (21) is located between the first mounting ring (17) and the rotating ring (10); first bevel gear rings (22) are meshed on the upper and lower sides of the first bevel gear (21); the first bevel gear rings (22) on the upper and lower sides are respectively fixedly connected to the rotating ring (10) and the first mounting ring (17); and the first bevel gear ring (22) and the rotating ring (10) are coaxially arranged; An inner wall of the cleaning cylinder (18) and an outer surface of the bag body (11) are provided with a gap. A plurality of guide plates (20) are fixedly mounted on the inner wall of the cleaning cylinder (18). The plurality of guide plates (20) are arranged in a circular array around the axis of the cleaning cylinder (18). An angle is provided between the guide plates (20) and the radial direction of the cleaning cylinder (18). An end of the guide plate (20) away from the cleaning cylinder (18) and an outer surface of the bag body (11) are provided with a gap. A brush is provided on the leeward side of the guide plate (20). The brush is distributed along its length and in contact with the surface of the bag body (11). A through groove (19) is provided at a position on the cleaning cylinder (18) where the guide plate (20) is installed. Air flowing along the guide plate (20) leaves the cleaning cylinder (18) through the through groove (19). A set distance is provided between the top of the through groove (19) and the rotating ring (10).

2. A dust collector according to claim 1, characterized in that: The dust removal bag comprises a bag body (11), an annular mounting plate (12) is fixedly mounted on the open end of the bag body (11), a supporting grille cylinder (13) extends into the bag body (11) and contacts the inner wall of the bag body (11), and a plurality of sets of fixing screws (14) are arranged on the supporting grille cylinder (13), the fixing screws (14) penetrate the mounting plate (12) and are threadedly connected to the rotating ring (10).

3. A dust collector according to claim 1, characterized in that: A coaxially arranged second mounting tube (27) is provided on the first mounting tube (16); a connecting plate (28) of an annular structure is fixedly mounted on the outer side surface of the second mounting tube (27); the connecting plate (28) is fixedly connected to the bottom surface of the first mounting tube (16) via fixing screws (14); the connecting plate (28), the first mounting tube (16) and the second mounting tube (27) form a collecting chamber (30) of an annular structure; a filter hole (31) communicating with the collecting chamber (30) is provided on the side wall of the first mounting tube (16).

4. A dust collector according to claim 3, characterized in that: A second mounting ring (23) is rotatably mounted on the cleaning cylinder (18). The second mounting ring (23) is located at the top of the cleaning cylinder (18) and a spiral blade (24) is fixedly mounted on the second mounting ring (23). The spiral blade (24) is distributed around the outer surface of the cleaning cylinder (18). The spiral blade (24) is in sliding contact with the inner wall of the second mounting cylinder (27). The top height of the spiral blade (24) and the second mounting cylinder (27) is higher than the top height of the through groove (19).

5. A dust collector according to claim 4, characterized in that: A second bevel gear (25) is rotatably mounted in the first mounting tube (16), and second bevel gear rings (26) are meshed above and below the second bevel gear (25). The second bevel gear ring (26) is coaxially arranged with the first mounting tube (16), and two sets of second bevel gear rings (26) are fixedly connected to the first mounting ring (17) and the second mounting ring (23), respectively.

6. A dust collector according to claim 5, characterized in that: A coaxially arranged shielding ring (29) is fixedly mounted on the bottom of the second mounting cylinder (27); the inner diameter of the shielding ring (29) is the same as the inner diameter of the cleaning cylinder (18).

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