Self-brushing cleaning type maintenance-free filter

Abstract

The invention relates to the technical field of air filters, in particular to a self-brushing cleaning type maintenance-free filter which comprises a shell, an air inlet, an impurity outlet and an air outlet, and double filtration is achieved through an I-stage axial filter unit and an II-stage radial filter unit; the I-stage unit adopts a vibration type filter screen structure, and self-cleaning is realized through elastic clamping and an intermittent jacking mechanism; and the II-stage unit drives a radial rotary filter element through a wind driving force mechanism, and is matched with a rotary ash shifting assembly and an axial ash removing assembly to automatically remove impurities. Internal mechanisms are driven to operate through airflow kinetic energy, real-time cleaning of the filter element is achieved, the maintenance frequency and cost are remarkably reduced, the filtering efficiency is improved, and the service life of an engine is prolonged.

Description

Technical Field

[0001] This invention relates to the field of air filter technology, specifically a self-cleaning, maintenance-free filter. Background Technology

[0002] Automotive engine filters refer to a series of devices installed in automotive engines and their related systems. Their core function is to remove harmful impurities from fluids (air, engine oil, fuel) or combustion products through physical filtration, adsorption, or separation to protect the engine and ensure its efficient, clean, and reliable operation. Examples include air filters, oil filters, and fuel filters.

[0003] Air filters, which are installed at the front end of the engine's intake manifold, are used to filter solid impurities such as dust, sand, and catkins from the air entering the engine's combustion chamber. These air filters require regular replacement of the filter element to remove adhered impurities, which increases both the difficulty of operation and the cost of use.

[0004] In view of this, this technical solution designs an air filter that can automatically clean the filter element in real time. Summary of the Invention

[0005] The purpose of this invention is to provide a self-cleaning, maintenance-free filter to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A self-cleaning, maintenance-free filter includes a housing, an air inlet, an impurity outlet, and an air outlet. The top of the housing is connected to a cone-shaped upper air intake cover. The air intake is located at the top of the upper air intake cover. The impurity outlet is connected to the bottom of the housing. The air outlet is a ring-shaped adapter wrapped between the impurity outlet and the housing, used to transmit the filtered gas toward the engine. The Stage I axial filter unit, connected and installed at the bottom of the upper air inlet cover, is used for the initial filtration of the gas input through the air inlet. The Stage I axial filter unit includes a vibrating axial filter mechanism, which, while filtering the input gas, accelerates the filtration process, automatically cleans dust, and prevents clogging. The Level II radial filter unit is connected to the bottom of the Level I axial filter unit via a connecting ring. The Level II radial filter unit is used to further filter the gas treated inside the Level I axial filter unit. Impurities generated during filtration are output along the impurity outlet, while the purified gas is transmitted backward along the outlet. The Level II radial filter unit includes a radial rotary filter mechanism for radially filtering the gas input into the Level I axial filter unit. The inner bottom of the radial rotary filter mechanism is connected to the impurity outlet, and the outer bottom is connected to the outlet. Rotary dust-removing components and axial dust-removing components are respectively installed on the outer circumferential sides of the radial rotary filter mechanism. These components contact the radial rotary filter mechanism circumferentially and axially, respectively, to automatically clean the dust remaining on the radial rotary filter mechanism, accelerating its fall into the impurity outlet, thus achieving a self-cleaning and maintenance-free function. The wind-driven power mechanism is located between the bottom of the first-stage axial filter unit and the top of the second-stage radial filter unit. The wind-driven power mechanism drives the rotation of the first-stage axial filter unit through the kinetic energy of the gas flow input inside the first-stage axial filter unit, which in turn drives the radial rotary filter mechanism to rotate. The radial rotary filter mechanism also includes a transmission component located at the bottom. The two sides of the transmission component are rotatably connected to the bottom of the rotating dust removal component and the axial dust removal component, respectively, thereby realizing the rotational operation of the rotating dust removal component and the axial dust removal component and performing automatic dust removal on the outside of the radial rotary filter mechanism.

[0007] Compared with the prior art, the beneficial effects of the present invention are: through vibration filtration and rotary dust removal mechanism, the dust accumulated in the filter element is automatically removed, eliminating the need for manual disassembly and cleaning or frequent replacement of the filter element.

[0008] The first-stage vibrating filter accelerates the shedding of impurities and prevents clogging, while the second-stage radial filter element, combined with a two-way dust removal component, improves the efficiency of impurity separation.

[0009] The rotating mechanism is driven by the kinetic energy of airflow impacting the windward plate, eliminating the need for additional motors or energy sources. By linking vibration and rotation for dust removal, and through multi-level coordination, the overall cleaning effect is optimized. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the external structure of a self-cleaning, maintenance-free filter. Figure 2 This is a schematic diagram showing the internal layout of a self-cleaning, maintenance-free filter. Figure 3 This is a second-view schematic diagram of the internal layout of a self-cleaning, maintenance-free filter. Figure 4 This is a partial structural diagram of a self-cleaning, maintenance-free filter. Figure 5This is a schematic diagram of the structure of the first-stage axial filter unit in a self-cleaning, maintenance-free filter. Figure 6 This is a partial structural diagram of the first-stage axial filter unit in a self-cleaning, maintenance-free filter. Figure 7 This is a schematic diagram of the structure of the first-stage axial filter unit in a self-cleaning, maintenance-free filter when it is deployed. Figure 8 This is a partial front view structural diagram of the first-stage axial filter unit in a self-cleaning, maintenance-free filter. Figure 9 This is a schematic diagram of the connection structure between the vibration spring and the spring base block in a self-cleaning, maintenance-free filter. Figure 10 for Figure 6 A magnified structural diagram of A in the middle; Figure 11 for Figure 3 A magnified structural diagram of B in the diagram; Figure 12 for Figure 3 A magnified structural diagram of C; Figure 13 for Figure 3 A magnified structural diagram of D in the diagram; Figure 14 This is a schematic diagram of the structure of an elastic longitudinal vibration block in a self-cleaning, maintenance-free filter.

[0011] The components include: housing 1, air inlet 2, impurity outlet 3, air outlet 4, and upper air inlet cover 10. Axial filter unit 20 (Level I), filter frame 200, filter 201, mounting block 202, vibration groove 203, vibration spring 204, spring base block 205, locking pin 206, locking hole 207, conical air collection pipe 208, top rod 209, cross-shaped vibration rod 210, cross-shaped vibration channel 211, and air outlet inclined pipe 212; Connecting ring 30, retaining ring 300; Stage II radial filtration unit 40; upper base ring of filter element 400, lower base ring of filter element 401, rotating ring base 402, rotating ring gear ring 403, drive gear I 404, support sleeve rod 405, ball screw 406, nut 407, bevel gear I 408, bevel gear II 409, rotating disk 410, lever 411, rotating rod 412, elastic lever mounting base 413, elastic brush 414, elastic longitudinal vibration block mounting plate 415, elastic longitudinal vibration block 416, windward plate 417, power inclined plate mounting ring 418, filter element 419. Detailed Implementation

[0012] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0013] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0014] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] Please see Figures 1-4 A self-cleaning, maintenance-free filter includes a housing 1, an air inlet 2, an impurity outlet 3, and an air outlet 4. The top of the housing 1 is connected to a cone-shaped upper air intake cover 10. The air intake 2 is opened at the top of the upper air intake cover 10. The impurity outlet 3 is connected and set at the bottom of the housing 1. The air outlet is set as an annular transition wrapping between the impurity outlet 3 and the housing 1, for the filtered gas to be transmitted towards the engine. The first-stage axial filter unit 20 is connected and installed at the bottom of the upper air inlet cover 10. It is used to perform initial filtration of the gas input from the air inlet 2. The first-stage axial filter unit 20 includes a vibration-type axial filter mechanism, which accelerates the filtration speed, automatically cleans dust, and prevents clogging while filtering the input gas. The second-stage radial filter unit 40 is connected to the bottom of the first-stage axial filter unit 20 via a connecting ring 30. The second-stage radial filter unit 40 is used to filter the gas processed inside the first-stage axial filter unit 20 again. The impurities generated by the filtration are output along the impurity outlet 3, and the purified gas is transmitted backward along the air outlet 4. The second-stage radial filter unit 40 includes a radial rotary filter mechanism, which is used to radially filter the gas input into the first-stage axial filter unit 20. The inner bottom end of the radial rotary filter mechanism is connected to the impurity outlet 3, and the outer bottom end is connected to the air outlet 2. Rotary dust removal components and axial dust removal components are respectively provided on the outer sides of the radial rotary filter mechanism. The two components are in contact with the radial rotary filter mechanism circumferentially and axially, respectively, to automatically clean the dust remaining on the radial rotary filter mechanism and accelerate its falling into the impurity outlet 3, thereby realizing the self-cleaning and maintenance-free function. A wind-driven power mechanism is located between the bottom of the first-stage axial filter unit 20 and the top of the second-stage radial filter unit 40. The wind-driven power mechanism drives the rotation of the first-stage axial filter unit 20 by the kinetic energy of the gas flow input inside the first-stage axial filter unit 20, and then drives the radial rotary filter mechanism to rotate. The radial rotary filter mechanism also includes a transmission component located at the bottom. The two sides of the transmission component are rotatably connected to the bottom of the rotating dust removal component and the axial dust removal component, respectively, so as to realize the rotation operation of the rotating dust removal component and the axial dust removal component and perform automatic dust removal on the outside of the radial rotary filter mechanism.

[0017] In the embodiments of the present invention, see Figure 2 , Figures 5-10 , Figure 14 The vibratory axial filtration mechanism includes a rectangular filter frame 200. The top of the filter frame 200 is sealed and snap-fitted to the bottom of the upper air inlet cover 10. A filter 201 is detachably installed inside the filter frame 200. Multiple vibration snap-fit ​​components are evenly installed on the edge of the filter 201. The vibration snap-fit ​​components are used to detachably and elastically install the filter 201 inside the filter frame 200, providing conditions for the axial vibration of the filter 201. A funnel-shaped conical air collecting pipe 208 is connected downward to the bottom center of the filter frame 200. The bottom of 208 is inserted into the secondary radial filter unit 40 via 30. The conical gas collection tube 208 is used to concentrate and transmit the gas after being filtered by the filter screen 201 to the rear. At the same time, a set of vibration power components is provided between the middle of one side of the filter screen 201 and the filter screen frame 200. The axial cleaning component at the bottom of the vibration power component is in intermittent contact with the axial cleaning component. The axial cleaning component applies a cyclic intermittent upward thrust to the vibration power component, and then elastically installs it between the filter screen 201 and the filter screen frame 200, thereby realizing vibration filtration of the filter screen frame 200. It should be noted that by utilizing the conical structure of the upper air intake cover 10, the gas input along the air intake 2 can be diffused onto the filter screen 201 for uniform and high-speed filtration. Specifically, the vibration latching component includes a mounting block 202 installed on the edge sidewall of the filter screen 201. A vibration spring 204 is elastically connected to the bottom of the mounting block 202. A latch 206 is installed at the bottom of the vibration spring 204 through a spring base block 205. A vibration groove 203 with a top and inner opening is opened on the inner sidewall of the filter screen frame 200 corresponding to the mounting block 202. A locking hole 207 is opened in the inner wall of the vibration groove 203 to engage with the spring base block 205. That is, the detachable connection between the filter screen 201 and the filter screen frame 200 is maintained by the engagement between the spring base block 205 and the locking hole 207. At the same time, the elasticity of the vibration spring 204 is used to maintain the axial elastic vibration of the filter screen 201. The vibration power component includes an upper push rod 209 installed on one side of the bottom of the filter screen 201 frame. A cross-shaped vibration channel 211 is opened in the inner wall of the filter screen frame 200 directly below the upper push rod 209. A cross-shaped vibration rod 210 is raised and lowered inside the cross-shaped vibration channel 211. The cross-shaped vibration rod 210 moves up and down in a limited manner inside the cross-shaped vibration channel 211. The bottom end of the cross-shaped vibration rod 210 is in intermittent contact with the axial cleaning component, that is, the axial cleaning component intermittently applies an upward thrust to the cross-shaped vibration rod 210. Then, the top end of the cross-shaped vibration rod 210 is controlled to contact the bottom of the upper push rod 209. Under the elastic action of the vibration spring 204, the vibration of the filter screen 201 is controlled to filter. The upward thrust applied by the cross-shaped vibration rod 210 to the bottom of the upper push rod 209 controls the vibration amplitude of the filter screen 201 to always keep the mounting block 202 moving within the vibration groove 203. That is, by controlling the vibration of the filter 201 as described above, the speed and efficiency of the initial air filtration can be achieved.

[0018] Preferably, the filter screen 201 is typically made of synthetic fiber nonwoven fabric, cellulose filter paper, etc. The filter screen 201 is used for the initial filtration of incoming air, and its pore size is smaller than the pore diameter in the subsequent radial rotary filtration mechanism.

[0019] In one embodiment of the present invention, see [reference] Figure 3 , Figure 11The radially rotating filter mechanism includes an upper base ring 400 and a lower base ring 401 of the filter element, which are longitudinally spaced apart. A filter element 419 is embedded between the upper base ring 400 and the lower base ring 401. A rotating toothed ring 403 is installed at the bottom of the lower base ring 401. A rotating ring base 402 is rotatably connected to the outside of the rotating toothed ring 403. The rotating toothed ring 403 rotates along the inside of the rotating ring base 402. The filter element 419 and the rotating toothed ring 403 are connected in the middle. The bottom of 403 is connected to the impurity outlet 3. The top of the base ring 400 on the filter element is connected to the conical gas collecting pipe 208 through 30. That is, the gas in the conical gas collecting pipe 208 is input into the interior of the filter element 419 along the filter screen frame 200, and then moves radially outward along the filter element 419 for filtration. The gas passes through the filter element 419 and is transferred to the space between the outer shell 1 and the outer side of the filter element 419. Then it is transferred downward along the gas outlet 4. The impurities trapped on the inner side of the filter element 419 are transferred along the impurity outlet 3 under the action of gravity. The transmission assembly includes notches on the side walls of the rotating ring base 402 located below the rotating ash-dispensing assembly and the axial ash-cleaning assembly on both sides. The inside of the notches is connected to the inside of the rotating ring base 402. A drive gear I 404 is rotatably installed in each notch. A rack is installed in the middle of the drive gear I 404. The upper side of the rack is mounted on the rotating ring base 402 by a support sleeve 405. The top of the rack is connected to the rotating ash-dispensing assembly and the axial ash-cleaning assembly respectively, thereby driving the rotating ash-dispensing assembly and the axial ash-cleaning assembly to rotate.

[0020] In a preferred embodiment of the present invention, the connecting ring 30 includes a retaining ring 300. The diameter of the retaining ring 300 is larger than the outer diameter of the bottom of the conical air collecting pipe 208. A circular retaining strip is installed on the top of the retaining ring 300. The circular retaining strip is engaged in a circular groove opened at the bottom of the filter screen frame 200. The retaining ring 300 moves downward to the filter element upper base ring 400 and slides and seals with the inner wall of the filter element upper base ring 400. That is, under the connecting action of the retaining ring 300, a stable and sealed connection is maintained between the filter screen frame 200 and the filter element upper base ring 400. The wind-driven power mechanism includes multiple evenly distributed air outlet inclined pipes 212 connected to the outside of the bottom of the conical air collection pipe 208. At the same time, a power inclined plate mounting ring 418 is installed inside the filter element base ring 400. Multiple wind-facing plates 417 are installed on the power inclined plate mounting ring 418 along a circular trajectory. The air outlet end of the air outlet inclined pipe 212 extending into the filter element base ring 400 faces the inclined surface of the wind-facing plate 417. As the gas is continuously input, a rotational thrust is applied to the wind-facing plate 417. Then, by means of the rotation of the rotating ring gear ring 403 in the rotating ring base 402, the rotation of the filter element base ring 400, filter element 419, etc. is controlled. Then, under the meshing of the drive gear I 404 and the rotating ring gear ring 403, the rotating dust removal component and the axial dust removal component are driven to run. It should be noted that the air outlet inclined pipe 212 impacts the high-pressure gas with the windward plate 417, converting the impulse of the airflow into rotational torque. The airflow ejected from the air outlet inclined pipe 212 has the same windward angle as the windward plate 417. The optimal angle is generally set between 10° and 30°. At the same time, the number of windward plates 417 and air outlet inclined pipes 212 is the same to maintain continuous torque and dynamic balance. The specific parameters and shapes of the air outlet inclined pipe 212 and the windward plate 417 can be simulated and calculated using fluid dynamics software; details will not be elaborated here.

[0021] In a preferred embodiment of the present invention, the rotating dust removal assembly is connected to a rotating rod 412 at the top center of one of the drive gears I 404. The top of the rotating rod 412 extends to the upper height of the filter element 419. At the same time, multiple elastic lever mounting bases 413 are installed at equal intervals along the annular pattern on the outer wall of the rotating rod 412. Multiple elastic brushes 414 are installed radially outward on the elastic lever mounting bases 413. That is, under the rotation of the rotating rod 412, the elastic brushes 414 are controlled to rotate and swing to the side of the filter element 419, and the ends of the elastic brushes 414 contact the outer wall of the filter element 419. By means of the opposite rotation of the rotating rod 412 and the filter element 419, a certain reverse thrust is applied to the filter element 419. The rotation of the filter element 419 and the contact of the elastic brushes 414 are combined to vibrate the impurities trapped inside the filter element 419 and accelerate their removal.

[0022] As a preferred embodiment of the present invention, see [reference]. Figure 3 , Figure 13 The axial cleaning assembly includes a ball screw 406 mounted on top of the drive gear I 404 on the other side. The top of the ball screw 406 also extends to the upper height of the filter element 419. A nut 407 is threaded onto the ball screw 406. The nut 407 is provided with a guide device to limit its rotation. When the ball screw 406 rotates, the nut 407 is controlled to move up and down cyclically along the ball screw 406. At the same time, an elastic longitudinal vibration block 416 is mounted on the side of the nut 407 facing the filter element 419 through an elastic longitudinal vibration block mounting plate 415. The elastic longitudinal vibration block 416 is embedded in contact with the outer side of the filter element 419. The up and down cyclic movement of the elastic longitudinal vibration block 416, together with the rotation of the filter element 419, further improves the vibration effect on the filter element 419.

[0023] As a preferred embodiment of the present invention, the materials of the elastic brush 414 and the elastic longitudinal vibration block 416 need to be sufficiently elastic so as not to excessively affect the rotation of the filter element 419, while also generating a certain vibration effect on the filter element 419. Synthetic fiber brush filaments are usually used, such as nylon brush filaments, polyester brush filaments or polypropylene brush filaments, etc.

[0024] As a preferred embodiment of the present invention, see [reference]. Figure 3 , Figure 12 The top of the axial dust removal assembly is connected to the bottom of the cross-shaped vibrating rod 210 via a toggle element. The toggle element includes a connecting shaft mounted on the top of the ball screw 406. A bevel gear I 408 is mounted on the top of the connecting shaft. A bevel gear II 409 is vertically meshed on one side of the top of the bevel gear I 408. A rotating disk 410 is connected to the center side of the bevel gear II 409 via a connecting rod. Multiple levers 411 are evenly mounted on the rotating disk 410. Under the meshing of the bevel gear I 408 and the bevel gear II 409, the rotating disk 410 is driven to rotate. Then, the levers 411 are controlled to intermittently contact the bottom of the cross-shaped vibrating rod 210, thereby pushing the cross-shaped vibrating rod 210 upward to achieve vibration drive of the filter screen 201. Specifically, bevel gear I 408, bevel gear II 409, and rotating disk 410 are all positioned inside their respective housings 1 by means of support rods, ensuring the stable operation of the above structures.

[0025] In this embodiment of the invention, it should be noted that the structure of the ball screw 406, the nut 407, and the guide device provided on the nut 407 is as follows: the thread channel of the ball screw 406 is configured as a closed loop, consisting of two intersecting helical grooves, one section turning left and the other turning right, forming an "∞" shaped loop path. When the ball screw 406 rotates in one direction, the nut 407 can obtain axial driving forces in opposite directions on different thread segments; The nut 407 has a ball recirculator inside, which guides the balls to circulate alternately between the two helical grooves and achieves smooth turning in the transition area, ensuring that the balls move continuously without jamming. The guiding device can be a guide key, linear guide, etc. When the ball screw 406 rotates, the balls circulate in the closed groove, pushing the nut 407 to move in one direction in the left-hand thread section and in the opposite direction in the right-hand thread section, thereby realizing the reciprocating motion of automatic reversing.

[0026] The working principle of this invention is as follows: During idle periods in this device, all the aforementioned driving components (representing power elements, electrical devices, and compatible power supplies) are connected via wires. The electrical connections are completed in sequence between the working components. The detailed connection methods are well-known in the art. The following mainly describes the working principle and process, without further explanation of the electrical control. Air intake and primary filtration: Air enters the conical upper air intake cover 10 from the air intake port 2 and is evenly diffused to the filter screen 201 of the first-stage axial filter unit 20; The filter screen 201 is elastically supported by the vibration spring 204 and vibrates at high frequency under the intermittent lifting of the cross-shaped vibration rod 210, which accelerates the detachment of impurities and their falling into the impurity outlet 3.

[0027] Airflow drive and secondary filtration: The gas after primary filtration is injected into the windward plate 417 through the conical gas collection pipe 208 and the air outlet inclined pipe 212, which drives the power inclined plate mounting ring 418 to rotate, thereby driving the filter element 419 to rotate. The gas passes radially through the filter element 419, and impurities are trapped on the inner side. The purified gas is output from the air outlet 4.

[0028] Automatic dust removal process: Rotary dust removal: Drive gear I 404 drives the elastic brush 414 to rotate through the rotating rod 412, brushing away impurities on the surface of filter element 419 in reverse. Axial vibration dust removal: Ball screw 406 drives nut 407 to move up and down, applying axial vibration to filter element 419 through elastic longitudinal vibration block 416.

[0029] Bevel gear I 408 and bevel gear II 409 drive rotating disk 410, and lever 411 intermittently lifts cross-shaped vibrating rod 210, synchronously triggering the vibration of stage I filter 201.

[0030] Impurity discharge: All detached impurities fall along the hollow channel of the rotating ring gear 403 under the action of gravity and are finally discharged from the impurity outlet 3.

[0031] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0032] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. The shell (1) top is connected with a conical structure of the upper air inlet cover (10), air inlet (2) is opened in the top of the upper air inlet cover (10), the impurity outlet (3) is communicated and is arranged at the bottom end of the shell (1), the gas outlet is arranged as an annular adapter and is wrapped between the impurity outlet (3) and the shell (1); Ⅰ grade axial filtration unit (20), connection is arranged in the bottom of the upper air inlet cover (10), for the gas input of air inlet (2) is filtered for the first time, the I grade axial filtration unit (20) includes vibration type axial filtration mechanism; Ⅱ grade radial filtration unit (40), through the connecting ring (30) is connected and arranged in the bottom of the I grade axial filtration unit (20), the II grade radial filtration unit (40) is used for filtering the gas processed in the I grade axial filtration unit (20) again, the II grade radial filtration unit (40) includes radial rotary filtration mechanism, for the gas input in the I grade axial filtration unit (20) is considered in radial, the inside bottom of the radial rotary filtration mechanism and the impurity outlet (3) are communicated, the outside bottom and the gas outlet (2) are communicated, the radial rotary filtration mechanism circumferential exterior both sides are respectively provided with rotating ash removal assembly and axial ash removal assembly, both are respectively contacted with the radial rotary filtration mechanism circumferential and axial; The wind-driven power mechanism is arranged between the bottom of the I grade axial filtration unit (20) and the top of the II grade radial filtration unit (40), the wind-driven power mechanism is driven to rotate by the flow kinetic energy of the gas input in the I grade axial filtration unit (20), then drives the radial rotary filtration mechanism to rotate, the radial rotary filtration mechanism further includes a transmission assembly arranged at the bottom, the transmission assembly both sides are respectively connected with the rotating ash removal assembly and the axial ash removal assembly bottom rotation.

2. A self-cleaning, maintenance-free filter with brush according to claim 1, characterized in that, The vibration type axial filtration mechanism includes a rectangular structure filter screen frame (200), the filter screen frame (200) top and the bottom of the upper air inlet cover (10) are connected in a sealed clamping mode, a filter screen (201) is detachably installed in the filter screen frame (200), a plurality of vibration clamping pieces are uniformly installed on the edge of the filter screen (201), a funnel-shaped conical gas collecting pipe (208) is downwardly communicated in the middle of the bottom of the filter screen frame (200), the bottom of the conical gas collecting pipe (208) is inserted into the II grade radial filtration unit (40) through the (30), a group of vibration power pieces are arranged between the middle of one side of the filter screen (201) and the filter screen frame (200), and the vibration power pieces are intermittently contacted with the axial ash removal assembly at the bottom.

3. A self-cleaning, maintenance-free filter with a brush according to claim 2, characterized in that, The vibration clamping piece includes a mounting block (202) mounted on the side wall of the filter screen (201), the bottom of the mounting block (202) is elastically connected with a vibration spring (204), the bottom end of the vibration spring (204) is installed with a clamping pin (206) through a spring bottom block (205), a vibration slot (203) with a top and an inner side opening is formed in the inner side wall of the filter screen frame (200) corresponding to the mounting block (202), a clamping hole (207) is formed in the inner wall of the vibration slot (203) and is clamped with the spring bottom block (205). The vibration power part comprises an upper top rod (209) installed at one side of the bottom of the frame of the filter screen (201), a cross-shaped vibration channel (211) is formed in the inner wall of the filter screen frame (200) below the upper top rod (209), a cross-shaped vibration rod (210) is lifted in the cross-shaped vibration channel (211), the cross-shaped vibration rod (210) is lifted along the cross-shaped vibration channel (211) in a limiting mode, and the bottom end of the cross-shaped vibration rod (210) is intermittently contacted with the axial dust removal assembly.

4. A self-cleaning, maintenance-free filter with a brush according to claim 3, characterized in that, The radial rotation type filtering mechanism comprises longitudinally spaced filter core upper base rings (400) and filter core lower base rings (401); filter cores (419) are embeddedly installed between the filter core upper base rings (400) and the filter core lower base rings (401), a rotating ring gear (403) is installed at the bottom of the filter core lower base ring (401), a rotating ring base (402) is rotationally connected to the outside of the rotating ring gear (403), the rotating ring gear (403) rotates along the inside of the rotating ring base (402), the filter core (419) and the rotating ring gear (403) are communicated in the middle part, the bottom of the rotating ring gear (403) is communicated with the impurity outlet (3), and the top of the filter core upper base ring (400) is communicated with the conical gas collecting pipe (208) through the passage (30).

5. A self-cleaning, maintenance-free filter with a brush according to claim 4, characterized in that, The transmission assembly comprises notches formed in the side walls of the rotating ash raking assembly and the axial dust removal assembly below the rotating ring base (402), the notches are communicated with the inside of the rotating ring base (402), a driving gear I (404) is rotationally arranged in each notch, a tooth rod is installed in the middle part of the driving gear I (404), the upper part of the tooth rod is positioned on the rotating ring base (402) through a supporting sleeve rod (405), and the top of the tooth rod is connected with the rotating ash raking assembly and the axial dust removal assembly.

6. A self-cleaning, maintenance-free filter with a brush according to claim 5, characterized in that, The connecting ring (30) comprises a clamping ring (300), the diameter of the clamping ring (300) is greater than the outer diameter of the bottom of the conical gas collecting pipe (208), a circular clamping strip is installed at the top of the clamping ring (300), the circular clamping strip is clamped in a circular clamping groove formed in the bottom of the filter screen frame (200), and the clamping ring (300) is slidably and sealingly contacted with the inner wall of the filter core upper base ring (400) when it moves downward to the inside of the filter core upper base ring (400).

7. A self-cleaning, maintenance-free filter with a brush according to claim 6, characterized in that The air-driven power mechanism comprises a plurality of air outlet inclined pipes (212) which are communicated and evenly distributed on the outer bottom of the conical gas collecting pipe (208), a power inclined plate mounting ring (418) is installed on the inside of the filter core upper base ring (400), a plurality of windward plates (417) are installed on the power inclined plate mounting ring (418) along a circular track, and the air outlet end of the air outlet inclined pipe (212) extending into the filter core upper base ring (400) is opposite to the inclined surface of the windward plate (417).

8. A self-cleaning, maintenance-free filter with a brush according to claim 7, characterized in that The rotating ash stirring component is connected to the rotating rod (412) at the top middle part of one side driving gear I (404), the rotating rod (412) extends to the upper side height position of the filter core (419), a plurality of elastic stirring rod mounting base strips (413) are mounted on the outer wall of the rotating rod (412) in an annular shape and at equal intervals, a plurality of elastic brushes (414) are mounted on the elastic stirring rod mounting base strips (413) radially outward, and the end part of the elastic brush (414) swinging to one side of the filter core (419) is in contact with the outer wall of the filter core (419).

9. A self-cleaning, maintenance-free filter with a brush according to claim 8, characterized in that, The axial ash cleaning component comprises a ball screw (406) mounted at the top of the other side driving gear I (404), the top of the ball screw (406) also extends to the upper side height position of the filter core (419), a nut (407) is threadedly connected to the ball screw (406), a guide device for limiting the nut (407) from rotating is arranged on the nut (407), and elastic longitudinal vibration blocks (416) are mounted on the side of the nut (407) facing the filter core (419) through elastic longitudinal vibration block mounting plates (415), and the elastic longitudinal vibration blocks (416) are in embedded contact with the outer side of the filter core (419).

10. A self-cleaning, maintenance-free filter with a brush according to claim 9, characterized in that, The top of the axial ash cleaning component is in contact type connection with the cross-shaped vibration rod (210) through a stirring piece, the stirring piece comprises a connecting shaft mounted at the top end of the ball screw (406), a bevel gear I (408) is mounted at the top of the connecting shaft, a bevel gear II (409) is vertically engaged on one side of the top of the bevel gear I (408), a rotating disc (410) is connected to one side of the center of the bevel gear II (409) through a connecting rod, and a plurality of stirring rods (411) are uniformly mounted on the rotating disc (410).

Images