A rotating impingement dust cleaning device for a dust handling filter cartridge

Abstract

This invention discloses a rotary impact cleaning device for dust treatment filter cartridges, relating to the field of dust filtration technology. It includes a housing and a top cover. The top cover is fixedly installed on the top surface of the housing. A gas drive pipe is provided on the top surface of the inner wall of the top cover, and a rotary bearing is fixedly installed on the inner wall of the gas drive pipe. This invention uses pneumatic blades to drive the hollow cleaning pipe to rotate and impact the filter cartridge with a ring. Simultaneously, high-pressure gas is injected directionally through the cleaning holes. A lever engages with the driven teeth at the end of the filter cartridge in a one-way manner, and the energy storage and rebound of the torsion spring in the positioning ring achieves the effect of a step-by-step reversing rotation and a secondary impact from the reverse aftershock after the filter cartridge is struck. This overcomes the shortcomings of existing technologies, which can only strike one side of the filter cartridge for a long time, resulting in a significant difference in cleaning effect between the impacted and unaffected sides, and lack of immediate follow-up airflow to quickly blow away the dust. This leads to a large amount of dust flowing back into the cavity and re-attaching to the outer wall of the filter cartridge, resulting in extremely low cleaning efficiency.

Description

Technical Field

[0001] This invention relates to the field of dust filtration technology, and in particular to a rotary impact cleaning device for dust treatment filter cartridges. Background Technology

[0002] Industrial production processes such as metallurgy, chemical engineering, machining, and food manufacturing generate large amounts of dust and waste gas. To meet environmental emission standards and ensure a safe working environment in workshops, industrial dust collectors are widely used. Among them, cartridge dust collectors have become the mainstream equipment in the field of industrial dust removal due to their advantages such as large filtration area, compact size, and high dust removal efficiency.

[0003] Existing filter cleaning methods mainly rely on pneumatic pulse or mechanical rapping. During operation, pneumatic pulse sprays high-pressure gas into the filter element instantaneously, using the expansion force of the airflow to peel off dust from the inside out. Mechanical rapping, on the other hand, uses external power to drive the striking components to directly apply physical vibration to the side wall of the filter element to shake off dust. However, existing traditional impact devices often only strike one side of the filter element for a long time, resulting in a huge difference in cleaning effect between the impact surface and the back surface. This makes it impossible to achieve uniform circumferential cleaning and easily causes severe local dust caking. At the same time, existing impact and pneumatic cleaning actions are usually disconnected. After the dust is loosened by pure mechanical vibration, there is a lack of immediate follow-up airflow to blow it away quickly, causing a large amount of dust to flow back into the cavity and re-attach to the outer wall of the filter element. The cleaning efficiency is extremely low. Existing technologies cannot meet the high-efficiency cleaning requirements of highly synchronized and coordinated physical rapping, instantaneous airflow sweeping, and automatic stepping and reversing of the filter element.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to achieve a precise synchronization of mechanical impact and airflow sweeping by driving the hollow cleaning tube to rotate through pneumatic blades, causing the impact ring to strike the filter element while high-pressure gas inside is directionally injected through the cleaning holes. At the same time, the one-way disengagement engagement between the lever and the driven teeth at the end of the filter element, combined with the energy storage and rebound of the torsion spring in the positioning ring, achieves the effect of step-by-step reversal rotation and reverse aftershock secondary impact after the filter element is struck. This overcomes the shortcomings of existing technologies, which can only strike one side of the filter element for a long time, resulting in a huge difference in the dust removal effect between the impact surface and the back surface, making it impossible to achieve uniform circumferential cleaning, and lacking the immediate follow-up airflow to quickly blow away the dust, causing a large amount of dust to flow back into the cavity and re-adhere to the outer wall of the filter element, resulting in extremely low dust removal efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a rotary impact cleaning device for dust treatment filter cartridges, comprising a housing and a top cover, wherein the top cover is fixedly installed on the top surface of the housing, a gas drive pipe is provided on the top surface of the inner wall of the top cover, a rotary bearing is fixedly installed on the inner wall of the gas drive pipe, a drive shaft is fixedly installed on the inner wall of the rotary bearing, a spiral blade is fixedly installed on the top surface of the drive shaft, a connecting bracket is fixedly installed on the bottom surface of the drive shaft, a cleaning pipe is fixedly connected to the bottom surface of the connecting bracket, a distribution pipe is fixedly installed on the inner wall of the cleaning pipe, a triggering mechanism is installed on the outer surface of the cleaning pipe, a reset assembly is installed on the inner wall of the housing, and a filter cartridge assembly is installed on the inner wall of the housing.

[0007] The triggering mechanism includes an impact component and a ratchet drive component. The impact component includes an impact ring, which is fixedly installed on the outer surface of the cleaning tube. A contact surface is provided on one side surface of the impact ring. A disassembly plate is fixedly installed on the top and bottom surfaces of the impact ring. A cleaning hole is provided on the top surface of the disassembly plate.

[0008] Furthermore, one end of the gas drive tube extends from the inner wall of the top cover to its outer surface, the drive shaft is rotatably connected to the gas drive tube via a rotary bearing, and one end of the cleaning tube extends from the inside of the gas drive tube to the inside of the equipment housing.

[0009] Furthermore, there are two impact rings, which are equidistantly distributed on the outer surface of the cleaning tube. There are twelve disassembly plates, which are arranged in a ring array of six and distributed on the bottom and top surfaces of the two impact rings respectively. Each disassembly plate has a number of cleaning holes distributed on its top surface.

[0010] Furthermore, the reset assembly includes a mounting plate, which is fixedly mounted on the inner wall of the equipment housing. A positioning ring is mounted on the top surface of the mounting plate and the bottom surface of the gas drive tube. A driven ring is rotatably mounted on the inner wall of the positioning ring, and a torsion spring is fixedly mounted on the inner wall of the positioning ring.

[0011] Furthermore, there are two mounting plates, which are equidistantly distributed on the inner wall of the equipment housing. There are also two driven rings, which are distributed on the inner walls of the two positioning rings respectively. Each positioning ring has a torsion spring distributed on its inner wall.

[0012] Furthermore, the ratchet drive assembly includes a setting plate, which is fixedly installed on the outer surface of the cleaning tube. A reset groove is formed on the inner wall of the setting plate, a reset spring is installed on the inner wall of the reset groove, a dynamic adjustment rod is slidably installed on the inner wall of the reset groove, a lever is rotatably installed on the outer surface of the setting plate, a contact tooth is provided on one side surface of the lever, and an adjustment groove is formed on the inner wall of the lever.

[0013] Furthermore, the setting plate consists of two equidistantly distributed plates on the outer surface of the cleaning tube, and there are six reset slots. The six reset slots are arranged in a circular array of three on the inner wall of the two setting plates, and a reset spring is distributed on the inner wall of each reset slot. Three levers are distributed on the outer surface of each setting plate.

[0014] Furthermore, each of the levers has an adjustment groove distributed on its inner wall, and each of the reset grooves has a dynamic adjustment rod distributed on its inner wall. The dynamic adjustment rod corresponds one-to-one with the lever, and the dynamic adjustment rod slides in contact with the inner wall of the adjustment groove.

[0015] Furthermore, the filter element assembly includes a mounting bearing, which is fixedly mounted on the top surface of the mounting plate. A snap-fit ​​plate is fixedly mounted on the inner wall of the mounting bearing. A driven tooth is provided on the outer surface of the snap-fit ​​plate. A filter element cylinder is inserted into the top surface of the snap-fit ​​plate. A dust discharge port is provided on the outer surface of the equipment housing.

[0016] Furthermore, there are six mounting bearings, arranged in a circular array of three on the top and bottom surfaces of the two mounting plates. Each mounting bearing has a corresponding snap-fit ​​plate on its inner wall, and each snap-fit ​​plate has a corresponding driven tooth on its outer surface. The driven tooth is in active contact with the contact teeth on one side of the lever, and the outer surface of the filter cartridge is in active contact with the contact surface on one side of the impact ring.

[0017] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0018] The rotary impact cleaning device of this dust treatment filter cartridge drives the hollow cleaning tube to rotate through pneumatic blades. As the impact ring strikes the filter cartridge, high-pressure gas inside is injected directionally through the cleaning holes, achieving a precise synchronization of mechanical vibration and airflow sweeping. At the same time, through the one-way disengagement engagement of the lever and the driven teeth at the end of the filter cartridge, combined with the energy storage and rebound of the torsion spring in the positioning ring, the filter cartridge achieves a step-by-step reversing rotation and a secondary impact from the reverse aftershock after being struck. This overcomes the shortcomings of existing technologies, which can only strike one side of the filter cartridge for a long time, resulting in a huge difference in cleaning effect between the impact surface and the back surface, making it impossible to achieve uniform circumferential cleaning, and lacking the immediate follow-up airflow to quickly blow away the dust, causing a large amount of dust to flow back into the cavity and re-adhere to the outer wall of the filter cartridge, resulting in extremely low cleaning efficiency. Attached Figure Description

[0019] Figure 1 A schematic diagram of the overall external structure of the present invention is shown;

[0020] Figure 2 A schematic diagram of the internal structure of the device housing of the present invention is shown;

[0021] Figure 3 A schematic diagram of the overall internal structure of the present invention is shown;

[0022] Figure 4 This shows a schematic diagram of the overall internal structure of the present invention from another angle;

[0023] Figure 5 A schematic diagram of the cleaning tube structure of the present invention is shown;

[0024] Figure 6 A schematic diagram of the filter cartridge structure of the present invention is shown;

[0025] Figure 7 A schematic diagram of the impact component structure of the present invention is shown;

[0026] Figure 8 A schematic diagram of the ratchet drive assembly structure of the present invention is shown;

[0027] Figure 9 A schematic diagram of the internal structure of the ratchet drive assembly of the present invention is shown;

[0028] Figure 10 A schematic diagram of the positioning ring structure of the present invention is shown;

[0029] Figure 11 The present invention is shown. Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0030] Figure 12 The present invention is shown. Figure 3 Enlarged schematic diagram of the structure at point B.

[0031] Legend: 1. Equipment casing; 101. Top cover; 102. Gas drive pipe; 103. Rotary bearing; 104. Drive shaft; 105. Spiral blade; 106. Connecting bracket; 107. Cleaning pipe; 108. Distribution pipe; 2. Impact ring; 201. Contact surface; 202. Disassembly plate; 203. Cleaning hole; 3. Mounting plate; 301. Positioning ring; 302. Driven ring; 303. Torsion spring; 4. Setting plate; 401. Reset groove; 402. Reset spring; 403. Dynamic adjustment rod; 404. Toggle lever; 405. Contact tooth; 406. Adjustment groove; 5. Mounting bearing; 501. Snap-fit ​​plate; 502. Driven tooth; 503. Filter cartridge; 504. Dust discharge inlet. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that, in the description of this invention, the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] like Figures 1-12 As shown, a rotary impact cleaning device for a dust treatment filter element includes a housing 1 and a top cover 101. The top cover 101 is fixedly installed on the top surface of the housing 1. A gas drive pipe 102 is provided on the top surface of the inner wall of the top cover 101. One end of the gas drive pipe 102 extends from the inner wall of the top cover 101 to its outer surface.

[0035] A rotary bearing 103 is fixedly installed on the inner wall of the gas drive tube 102, and the drive shaft 104 is rotatably connected to the gas drive tube 102 through the rotary bearing 103.

[0036] A helical blade 105 is fixedly installed on the top surface of the drive shaft 104, and a connecting bracket 106 is fixedly installed on the bottom surface of the drive shaft 104.

[0037] A cleaning tube 107 is fixedly connected to the bottom surface of the connecting bracket 106. One end of the cleaning tube 107 extends from the inside of the gas drive tube 102 to the inside of the equipment housing 1.

[0038] A distribution pipe 108 is fixedly installed on the inner wall of the cleaning pipe 107, and a triggering mechanism is installed on the outer surface of the cleaning pipe 107. A reset assembly and a filter element assembly are respectively installed on the inner wall of the equipment housing 1.

[0039] In this embodiment of the invention, when the external high-pressure pulse gas begins to enter the gas drive pipe 102 on the top surface of the inner wall of the top cover 101, the fluid flows violently downward in the pipe and forms a pneumatic impact. Since the spiral blade 105 fixedly installed on the top surface of the drive shaft 104 is directly placed in the internal flow channel of the gas drive pipe 102, the high-pressure fluid can directly wrap around and scour the spiral blade 105. The linear impact kinetic energy of the gas is instantly converted into the mechanical torque that drives the spiral blade 105 to rotate, and is quickly transmitted to the drive shaft 104. As the air pressure is continuously applied, the drive shaft 104 overcomes the torque of the torsion spring 303 on the inner wall of the positioning ring 301 and rotates at high speed in the direction of force through the support of the rotating bearing 103 on the inner wall of the gas drive pipe 102.

[0040] Reference Figures 1-12 Specifically, the triggering mechanism includes an impact assembly and a ratchet drive assembly. The impact assembly includes two impact rings 2, which are equidistantly distributed and fixedly installed on the outer surface of the cleaning tube 107. A contact surface 201 is provided on one side surface of the impact ring 2, and a disassembly plate 202 is fixedly installed on the top and bottom surfaces of the impact ring 2.

[0041] There are twelve disassembly plates 202. The twelve disassembly plates 202 are arranged in a ring array of six and distributed on the bottom and top surfaces of the two impact rings 2. Each disassembly plate 202 has a number of cleaning holes 203 distributed on its top surface.

[0042] In this embodiment of the invention, the high-speed rotation of the drive shaft 104 is directly transmitted to the cleaning tube 107 through the connecting bracket 106 fixedly installed on its bottom surface, causing the cleaning tube 107 to rotate at high speed synchronously, which in turn causes the impact ring 2 fixedly installed on the outer surface of the cleaning tube 107 to swing violently. The contact surface 201 on one side of the impact ring 2 then impacts the outer surface of the filter cartridge 503, and the dust layer attached to the surface of the filter cartridge 503 is forced to break and peel off by the strong mechanical excitation force.

[0043] Reference Figures 1-12 Specifically, the reset assembly includes mounting plates 3. There are two mounting plates 3, which are equidistantly distributed and fixedly installed on the inner wall of the equipment housing 1;

[0044] Positioning rings 301 are installed on the top surface of the mounting plate 3 and the bottom surface of the gas drive tube 102.

[0045] There are two driven rings 302, which are rotatably installed on the inner walls of the two positioning rings 301 respectively. A torsion spring 303 is fixedly installed on the inner wall of each positioning ring 301.

[0046] Based on this support, to provide a fixed reference point for the torsional reset action, fixed positioning rings 301 are installed on the top surface of the mounting plate 3 and the bottom surface of the aforementioned gas drive pipe 102. To accumulate elastic potential energy during forward rotation and provide a strong rebound torque after gas supply is cut off, a torsion spring 303 is fixedly installed on the inner wall of each positioning ring 301. Simultaneously, two driven rings 302 are correspondingly configured and rotatably installed on the inner walls of the two positioning rings 301. Through this structure, the driven ring 302 is smoothly guided during rotation, causing the torsion spring 303 to be forced to twist and continuously store energy when subjected to forward driving force. This energy is then released instantaneously after the pneumatic thrust disappears, driving the core transmission component to complete a clean and efficient purely mechanical reset.

[0047] In this embodiment of the invention, when the pulse gas source stops and the intake pressure in the gas drive tube 102 drops below the set value, the pneumatic thrust acting on the spiral blade 105 disappears instantly. At this time, the torsion spring 303, which is extremely twisted, releases its elastic potential energy, pushing the driven ring 302 and the drive shaft 104 to rotate rapidly in the opposite direction to reset. Under the strong inertial action of the rebound, the cleaning tube 107 drives the impact ring 2 to retract quickly, and uses the residual shock generated by the reset to directly impact the surface of the adjacent filter cartridge 503 with its other side contact surface 201, thereby achieving reverse secondary mechanical vibration cleaning.

[0048] Reference Figures 1-12 Specifically, the ratchet drive assembly includes a mounting plate 4, which is fixedly mounted on the outer surface of the cleaning tube 107. In this embodiment, there are two mounting plates 4, which are equidistantly distributed on the outer surface of the cleaning tube 107.

[0049] Each setting plate 4 has three levers 404 distributed on its outer surface. The levers 404 are rotatably mounted on the outer surface of the setting plate 4, and one side surface of the levers 404 is provided with contact teeth 405.

[0050] The inner wall of the mounting plate 4 is provided with six reset slots 401. The six reset slots 401 are arranged in groups of three in a circular array on the inner walls of the two mounting plates 4. A reset spring 402 is installed on the inner wall of each reset slot 401. At the same time, a dynamic adjustment rod 403 is slidably installed on the inner wall of each reset slot 401.

[0051] Each lever 404 has an adjustment groove 406 on its inner wall. The dynamic adjustment lever 403 corresponds to each lever 404, and the dynamic adjustment lever 403 extends into the inside of the lever 404, maintaining sliding contact with the inner wall of the adjustment groove 406.

[0052] In this embodiment of the invention, during the reverse rotation and reset of the cleaning tube 107, the setting plate 4 moves in the opposite direction. The reverse inclined surface of the lever 404 is relatively pressed against the stationary driven tooth 502 of the locking plate 501. Under the direct action of this pressing force, the lever 404 overcomes the elastic resistance of the reset spring 402 inside the reset groove 401. In conjunction with the relative sliding guide of the dynamic adjustment rod 403 slidably installed on the inner wall of the reset groove 401 in the adjustment groove 406 on the inner wall of the lever 404, it retracts and yields towards the inside of the reset groove 401. This linkage process causes the contact plate to retract and yield. The tooth 405 smoothly slides over the tooth tip of the driven tooth 502, preventing the filter cartridge 503 from reversing. When the lever 404 passes the current driven tooth 502, the stretched return spring 402 retracts, pulling the lever 404 inward so that it contacts the locking tooth 405 and falls into the groove of the next driven tooth 502, waiting for the next pulse drive cycle. Through the above-mentioned linkage process of pure mechanical and fluid power, this device achieves powerful bidirectional impact, precise pneumatic purging, and step-by-step reversing rotation of the filter cartridge 503 under a single air source drive.

[0053] The filter element assembly includes a mounting bearing 5, which is fixedly mounted on the top surface of the mounting plate 3. A snap-fit ​​plate 501 is fixedly mounted on the inner wall of the mounting bearing 5. A driven tooth 502 is provided on the outer surface of the snap-fit ​​plate 501. A filter element cartridge 503 is inserted into the top surface of the snap-fit ​​plate 501. A dust discharge inlet 504 is provided on the outer surface of the equipment housing 1. There are six mounting bearings 5, which are arranged in a ring array of three and distributed on the top and bottom surfaces of the two mounting plates 3. A snap-fit ​​plate 501 is correspondingly distributed on the inner wall of each mounting bearing 5. A driven tooth 502 is correspondingly distributed on the outer surface of each snap-fit ​​plate 501. The driven tooth 502 is in active contact with the contact tooth 405 provided on one side surface of the lever 404. The outer surface of the filter element cartridge 503 is in active contact with the contact surface 201 provided on one side surface of the impact ring 2.

[0054] Specific usage process: Before the rotary impact cleaning device for dust treatment filter cartridges of the present invention is put into operation, the connection and installation of the air circuit and equipment components must be completed. In specific operation, the external high-pressure pulse air source pipeline is connected to the gas drive pipe 102 set on the top surface of the inner wall of the top cover 101 to ensure that the high-pressure drive gas can be smoothly introduced into the device. At the same time, the filter cartridges 503 to be cleaned are inserted one by one between the two upper and lower opposite mounting bearings 5, so that the snap-fit ​​plates 501 distributed on the inner wall of the two mounting bearings 5 ​​synchronously clamp and fix the top and bottom ends of the filter cartridges 503, thereby stably and vertically installing the filter cartridges 503 on the equipment housing 1. Internally, at this stage, the device is in an initial standby state. The torsion spring 303 in the positioning ring 301 inside the inner wall of the equipment housing 1 is in a natural reset state without being twisted. This spring only serves as a limit reference for the reset endpoint, so that the drive shaft 104 and the cleaning pipe 107 below it remain stationary at the initial starting position in this reset state. At this time, the lever 404 fixed on the outer side of the cleaning pipe 107 is in the initial extended position under the basic thrust of the reset spring 402 inside the reset groove 401, so that the contact teeth 405 on one side of the lever 404 and the driven teeth 502 on the outer surface of the snap plate 501 are in an initial close-fitting preparation state. The entire system is waiting for the dust removal command.

[0055] When the external high-pressure pulsed gas begins to enter the gas drive pipe 102 on the top surface of the inner wall of the top cover 101, the fluid flows violently downward in the pipe and forms a pneumatic impact. Since the spiral blade 105 fixedly installed on the top surface of the drive shaft 104 is directly placed in the internal flow channel of the gas drive pipe 102, the high-pressure fluid can directly wrap around and scour the spiral blade 105. The linear impact kinetic energy of the gas is instantly converted into the mechanical torque that drives the spiral blade 105 to rotate, and is quickly transmitted to the drive shaft 104. As the air pressure is continuously applied, the drive shaft 104 overcomes the torque of the torsion spring 303 on the inner wall of the positioning ring 301 and rotates at high speed in the direction of force through the support of the rotating bearing 103 on the inner wall of the gas drive pipe 102.

[0056] The high-speed rotation of the drive shaft 104 is directly transmitted to the cleaning tube 107 through the connecting bracket 106 fixedly mounted on its bottom surface, causing the cleaning tube 107 to rotate at high speed synchronously. This causes the impact ring 2, which is fixedly mounted on the outer surface of the cleaning tube 107, to swing violently. The contact surface 201 on one side of the impact ring 2 then impacts the outer surface of the filter cartridge 503. The strong mechanical vibration force forces the dust layer attached to the surface of the filter cartridge 503 to break and peel off. At the same time, the high-pressure gas does not dissipate after driving the spiral blades 105. Instead, the gas extends downward from the inside of the gas drive pipe 102 into the inside of the cleaning pipe 107 and fills the distribution pipe 108 fixedly installed on the inner wall. Then, the high-pressure gas flows along the internal channel into the disassembly plate 202 fixedly installed on the top and bottom surfaces of the impact ring 2, and finally is ejected at high speed from the cleaning hole 203 opened on the top surface of the disassembly plate 202. The jet airflow cuts into the surface of the filter cartridge 503 that has just been mechanically shaken, and uses the high-speed jet to thoroughly blow away and peel off the loosened dust, realizing the absolute synchronization and coordination of mechanical impact and pneumatic blowing.

[0057] During this forward rotation and dust removal process, the mounting plate 4 fixed to the outer surface of the cleaning pipe 107 undergoes synchronous circumferential displacement. The outer surface of the mounting plate 4 drives the lever 404 to rotate synchronously. Since the lever 404 is in its initial extended position at this time, the contact teeth 405 on one side of its surface are in rigid engagement with the driven teeth 502 on the outer surface of the locking plate 501. Therefore, when the mounting plate 4 is driven to rotate, the lever 404, which moves with it, will apply a tangential thrust through the contact teeth 405, forcing the locking plate 501 to rotate synchronously on the inner walls of the upper and lower mounting bearings 5, thereby driving the filter cartridge 503, which is inserted and fixed to the locking plate 501 at both ends, to rotate as a whole. As the rotation angle of plate 4 gradually increases, due to the geometric constraints of the relative motion trajectory, the contact teeth 405 on one side of the lever 404 will gradually slide off and fall off from the surface of the current driven tooth 502. This mechanical linkage of engagement-pushing-disengagement allows the filter cartridge 503 to complete a single step rotation at a set angle while being subjected to mechanical shock, thus successfully realizing the automatic replacement of the dust-affected surface in the circumferential direction of the filter cartridge. At the same time, the rotation of the drive shaft 104 continuously twists and fixes the torsion spring 303, which is fixedly installed on the inner wall of the positioning ring 301, through the driven ring 302 on the inner wall of the positioning ring 301, causing the torsion spring 303 to deform and continuously accumulate elastic potential energy until the positive impact is completed and the air source pulse ends.

[0058] When the pulse air source stops and the air pressure in the gas drive tube 102 drops below the set value, the pneumatic thrust acting on the spiral blade 105 disappears instantly. At this time, the torsion spring 303, which is extremely twisted, releases its elastic potential energy, pushing the driven ring 302 and the drive shaft 104 to rotate rapidly in the opposite direction to reset. Under the strong inertia of the rebound, the cleaning tube 107 drives the impact ring 2 to retract quickly, and uses the residual shock generated by the reset to directly impact the surface of the adjacent filter cartridge 503 with its other side contact surface 201, realizing reverse secondary mechanical vibration cleaning.

[0059] During the reverse rotation and reset of the cleaning tube 107, the setting plate 4 moves in the opposite direction. The reverse inclined surface of the lever 404 is relatively pressed against the stationary driven tooth 502 of the locking plate 501. Under the direct action of this pressing force, the lever 404 overcomes the elastic resistance of the reset spring 402 inside the reset groove 401. In conjunction with the relative sliding guide of the dynamic adjustment rod 403 slidably installed on the inner wall of the reset groove 401 in the adjustment groove 406 on the inner wall of the lever 404, it retracts and yields into the reset groove 401. This linkage process causes the contact tooth 405 to retract and yield. The lever 404 smoothly slides over the tooth tip of the driven tooth 502, avoiding causing the filter cartridge 503 to reverse. After the lever 404 passes the current driven tooth 502, the stretched return spring 402 retracts, pulling the lever 404 inward so that it contacts the locking tooth 405 and falls into the groove of the next driven tooth 502, waiting for the next pulse drive cycle. Through the above-mentioned linkage process of pure mechanical and fluid power, this device achieves powerful bidirectional impact, precise pneumatic purging, and step-by-step reversing rotation of the filter cartridge 503 under a single air source drive.

[0060] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A rotary impact cleaning device for a dust treatment filter element, comprising a housing (1) and a top cover (101), wherein the top cover (101) is fixedly installed on the top surface of the housing (1), characterized in that: A gas drive pipe (102) is provided on the top surface of the inner wall of the top cover (101). A rotary bearing (103) is fixedly installed on the inner wall of the gas drive pipe (102). A drive shaft (104) is fixedly installed on the inner wall of the rotary bearing (103). A spiral blade (105) is fixedly installed on the top surface of the drive shaft (104). A connecting bracket (106) is fixedly installed on the bottom surface of the drive shaft (104). A cleaning pipe (107) is fixedly connected to the bottom surface of the connecting bracket (106). A distribution pipe (108) is fixedly installed on the inner wall of the cleaning pipe (107). A triggering mechanism is installed on the outer surface of the cleaning pipe (107). A reset assembly is installed on the inner wall of the equipment housing (1). A filter element assembly is installed on the inner wall of the equipment housing (1). The triggering mechanism includes an impact component and a ratchet drive component. The impact component includes an impact ring (2), which is fixedly installed on the outer surface of the cleaning tube (107). A contact surface (201) is provided on one side surface of the impact ring (2). A disassembly plate (202) is fixedly installed on the top and bottom surfaces of the impact ring (2). A cleaning hole (203) is opened on the top surface of the disassembly plate (202). The ratchet drive assembly includes a setting plate (4), which is fixedly installed on the outer surface of the cleaning tube (107). The inner wall of the setting plate (4) is provided with a reset groove (401), and a reset spring (402) is installed on the inner wall of the reset groove (401). A dynamic adjustment rod (403) is slidably installed on the inner wall of the reset groove (401). A lever (404) is rotatably installed on the outer surface of the setting plate (4). A contact tooth (405) is provided on one side surface of the lever (404), and an adjustment groove (406) is provided on the inner wall of the lever (404).

2. The rotary impact cleaning device for dust treatment filter cartridges according to claim 1, characterized in that, One end of the gas drive tube (102) extends from the inner wall of the top cover (101) to its outer surface. The drive shaft (104) is rotatably connected to the gas drive tube (102) through a rotary bearing (103). One end of the cleaning tube (107) extends from the inside of the gas drive tube (102) to the inside of the equipment housing (1).

3. The rotary impact cleaning device for dust treatment filter cartridges according to claim 1, characterized in that, There are two impact rings (2), which are equidistantly distributed on the outer surface of the cleaning tube (107). There are twelve disassembly plates (202), which are arranged in a ring array of six in each group and distributed on the bottom and top surfaces of the two impact rings (2). Each disassembly plate (202) has a number of cleaning holes (203) distributed on its top surface.

4. The rotary impact cleaning device for dust treatment filter cartridges according to claim 1, characterized in that, The reset assembly includes a mounting plate (3), which is fixedly installed on the inner wall of the equipment housing (1). A positioning ring (301) is installed on the top surface of the mounting plate (3) and the bottom surface of the gas drive pipe (102). A driven ring (302) is rotatably installed on the inner wall of the positioning ring (301), and a torsion spring (303) is fixedly installed on the inner wall of the positioning ring (301).

5. The rotary impact cleaning device for dust treatment filter cartridges according to claim 4, characterized in that, There are two mounting plates (3), which are equidistantly distributed on the inner wall of the equipment housing (1). There are two driven rings (302) respectively distributed on the inner wall of the two positioning rings (301). Each positioning ring (301) has a torsion spring (303) correspondingly distributed on its inner wall.

6. The rotary impact cleaning device for dust treatment filter cartridges according to claim 1, characterized in that, The setting plate (4) consists of two equally spaced plates on the outer surface of the cleaning tube (107). There are six reset slots (401). The six reset slots (401) are arranged in a ring array of three on the inner wall of the two setting plates (4). Each inner wall of the reset slot (401) is provided with a reset spring (402). Each outer surface of the setting plate (4) is provided with three levers (404).

7. The rotary impact cleaning device for dust treatment filter cartridges according to claim 1, characterized in that, Each of the levers (404) has an adjustment groove (406) distributed on its inner wall, and each of the reset grooves (401) has a dynamic adjustment rod (403) distributed on its inner wall. The dynamic adjustment rod (403) corresponds to the lever (404) one by one, and the dynamic adjustment rod (403) slides in contact with the inner wall of the adjustment groove (406).

8. The rotary impact cleaning device for dust treatment filter cartridges according to claim 1, characterized in that, The filter element assembly includes a mounting bearing (5), which is fixedly mounted on the top surface of the mounting plate (3). A snap-fit ​​plate (501) is fixedly mounted on the inner wall of the mounting bearing (5). A driven tooth (502) is provided on the outer surface of the snap-fit ​​plate (501). A filter element cylinder (503) is inserted into the top surface of the snap-fit ​​plate (501). A dust discharge port (504) is provided on the outer surface of the equipment housing (1).

9. The rotary impact cleaning device for dust treatment filter cartridges according to claim 8, characterized in that, There are six mounting bearings (5). The six mounting bearings (5) are arranged in a ring array of three and distributed on the top and bottom surfaces of the two mounting plates (3). Each mounting bearing (5) has a corresponding snap-fit ​​plate (501) on its inner wall. Each snap-fit ​​plate (501) has a corresponding driven tooth (502) on its outer surface. The driven tooth (502) is in active contact with the contact snap-fit ​​tooth (405) on one side surface of the lever (404). The outer surface of the filter cartridge (503) is in active contact with the contact surface (201) on one side surface of the impact ring (2).

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