Automatic air filter device for air suspension centrifugal blower

Abstract

The application relates to an automatic air filtering device of an air suspension centrifugal blower, and relates to the technical field of air filtering, which comprises a machine body and filter cloth, the machine body is provided with an air inlet groove, the top wall and the bottom wall of the air inlet groove are provided with mounting grooves, first mounting rollers and second mounting rollers are rotationally arranged in the mounting grooves, the first mounting rollers and the second mounting rollers are arranged on the upper and lower sides of the air inlet groove, the filter cloth is arranged around the first mounting rollers and the second mounting rollers, the filter cloth passes through the air inlet groove, and the inner wall of the air inlet groove is provided with a protective net capable of covering the air inlet groove. The application has the effect of reducing the possibility of filtering function failure.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of air filtration, in particular to an automatic air filter device of an air suspension centrifugal blower. BACKGROUND

[0002] At present, in the sewage treatment, petroleum chemical industry and other industries, an air filter is arranged in front of a unit or equipment requiring a large amount of industrial air, to filter dust and other impurity particles in the air, so that the large-particle impurities in the air are reduced, the dust content is reduced, and the abrasion of the blades of the unit in high-speed operation is reduced. In the use process of the air suspension centrifugal blower, in order to meet the needs of long-period operation of the unit or equipment.

[0003] An air filter of a filter cloth type is used at the inlet of the air suspension centrifugal blower, which is generally located on the side of the body of the air suspension centrifugal blower. The type of the air filter is generally single-sided air inlet, and single-layer filter cloth filtration.

[0004] However, in the actual process, the single-layer filter cloth may be damaged by impurities in the air, resulting in damage of the filter cloth and affecting the filtering effect, so that impurity particles enter the air suspension centrifugal blower and cause damage and failure, and the filtering function may fail. SUMMARY

[0005] In order to reduce the possibility of failure of the filtering function, the application provides an automatic air filter device of an air suspension centrifugal blower.

[0006] The automatic air filter device of the air suspension centrifugal blower provided by the application adopts the following technical scheme:

[0007] The automatic air filter device of the air suspension centrifugal blower comprises a body and filter cloth, the body is provided with an air inlet groove, the top wall and the bottom wall of the air inlet groove are provided with mounting grooves, first mounting rollers and second mounting rollers are rotationally arranged in the mounting grooves, the first mounting rollers and the second mounting rollers are arranged on the upper and lower sides of the air inlet groove, the filter cloth is arranged around the first mounting rollers and the second mounting rollers, the filter cloth passes through the air inlet groove, and a protective net capable of covering the air inlet groove is arranged on the inner wall of the air inlet groove.

[0008] By adopting the above technical scheme, the filter cloth is arranged around the first mounting rollers and the second mounting rollers to form a double-layer filtering structure, and the protective net is used to block larger impurities to provide protection, so that the possibility of the single-layer filter cloth being damaged by air impurities and then entering the air suspension centrifugal blower is reduced, the possibility of failure of the filtering function is reduced, the stability of the filtration is ensured, and the possibility of damage of the air suspension centrifugal blower is reduced.

[0009] Preferably, a first cleaning plate is arranged in the mounting groove and abuts against the filter cloth, and the machine body is provided with a driving assembly for driving the first mounting roller and the second mounting roller to rotate.

[0010] By adopting the above technical scheme, the driving assembly drives the first mounting roller and the second mounting roller to rotate, thereby driving the filter cloth to rotate as a whole. Meanwhile, in the process of rotation, the filter cloth passes through the first cleaning plate abutting against the filter cloth, thereby cleaning the surface of the filter cloth and reducing the possibility that impurities adhere to the surface of the filter cloth and affect the filtering function of the filter cloth. Meanwhile, the cleaning work of the filter cloth is simplified, and the filter cloth does not need to be disassembled from the machine body for cleaning, thereby facilitating use.

[0011] Preferably, the machine body is provided with a mounting cavity in communication with the mounting groove, the driving assembly comprises a driving motor, a first driving sprocket, a second driving sprocket and a driving chain, the driving motor is arranged on the machine body, the first driving sprocket and the second driving sprocket are both rotationally arranged in the mounting cavity, the driving motor shaft is connected with the first mounting roller, the first driving sprocket is arranged on the first mounting roller, the second driving sprocket is arranged on the second mounting roller, and the driving chain is meshingly sleeved on the first driving sprocket and the second driving sprocket.

[0012] By adopting the above technical scheme, after the driving motor is started, the driving motor drives the first mounting roller and the first driving sprocket to rotate, and under the transmission of the driving chain, the second driving sprocket synchronously rotates, thereby driving the second mounting roller to rotate, so that driving is realized. The operation is simple and convenient, and use is facilitated.

[0013] Preferably, an auxiliary groove in communication with the mounting cavity is arranged on the inner wall of the air inlet groove, and the filter cloth passes through the auxiliary groove and enters the mounting cavity.

[0014] By adopting the above technical scheme, the filter cloth passes through the auxiliary groove and enters the mounting cavity, thereby covering the entire air inlet groove. The possibility that the filter cloth is folded and wrinkled and thus causes the possibility that some areas of the air inlet groove are not covered is reduced, thereby reducing the possibility that the filtering function is invalidated.

[0015] Preferably, a second cleaning plate is slidingly arranged on the machine body, the second cleaning plate slides through the air inlet groove and abuts against the protective net after sliding, the second cleaning plate is inserted into the mounting cavity, and a connecting rod is arranged between the second cleaning plate and the driving chain for connecting the second cleaning plate and the driving chain.

[0016] By adopting the above technical scheme, when the driving chain is driven to rotate after the driving motor is started, the second cleaning plate is driven to slide through the connecting rod, thereby driving the second cleaning plate to rub and clean the surface of the protective net, so as to reduce the possibility that impurities on the surface of the protective net accumulate and block the mesh, and ensure the air volume passing through the air inlet groove.

[0017] Preferably, the machine body is provided with a cleaning cavity, the inner wall of the air inlet groove is provided with a cleaning groove communicating with the cleaning cavity, the second cleaning plate slides through the cleaning groove into the cleaning cavity, the cleaning cavity is provided with a cleaning nozzle for spraying cleaning, and the machine body is provided with a cleaning pipe connected with the cleaning nozzle.

[0018] Through the above technical scheme, the second cleaning plate moves through the cleaning groove into the cleaning cavity, the cleaning pipe communicates with the cleaning water source, and the cleaning nozzle sprays in the cleaning cavity, thereby cleaning the second cleaning plate. The operation is simple, convenient and easy, and the second cleaning plate does not need to be disassembled for water cleaning.

[0019] Preferably, the installation groove is provided with a communication groove communicating with the cleaning groove, the first cleaning plate slides through the communication groove into the cleaning cavity, the transmission assembly is arranged between the first cleaning plate and the connecting rod, and the transmission assembly is used to drive the first cleaning plate to slide according to the movement of the connecting rod.

[0020] Through the above technical scheme, the transmission assembly drives the first cleaning plate and the connecting rod, so that when the connecting rod moves along the transmission chain, the first cleaning plate moves synchronously and enters the cleaning cavity through the communication groove, thereby facilitating water washing and spraying cleaning of the first cleaning plate to ensure the cleaning effect of the first cleaning plate and the filtering function of the filter cloth.

[0021] Preferably, the transmission assembly comprises a first transmission rack, a second transmission rack and a first transmission gear, the first transmission gear is rotatably arranged in the installation cavity, the first transmission rack is connected with the connecting rod and can be engaged with the first transmission gear, and the second transmission rack is arranged on the first cleaning plate and engaged with the first transmission gear.

[0022] Through the above technical scheme, when the connecting rod is lowered by a distance, the first transmission rack connected with the connecting rod drives the first transmission gear to rotate, thereby driving the second transmission rack to move and driving the first cleaning plate to move, realizing transmission connection, simplifying operation steps, making operation simple and convenient, facilitating use, and saving driving parts and reducing cost by moving the first cleaning plate through the movement of the connecting rod.

[0023] Preferably, the inner wall of the cleaning groove is provided with a sliding groove, the sliding groove is slidably provided with a closing plate which can be inserted into the cleaning groove, the closing plate is provided with a third transmission rack, the installation cavity is rotatably provided with a second transmission gear, and the second transmission gear is engaged between the first transmission gear and the third transmission rack.

[0024] By adopting the technical scheme, the closing plate is inserted into the cleaning groove after sliding in the sliding groove, the closing plate closes the cleaning groove, the possibility of impurities entering the cleaning cavity is reduced, the cleanliness in the cleaning cavity is reduced, the cleaning effect of the second cleaning plate and the first cleaning plate is improved, when the second cleaning plate is lowered, the closing plate is synchronously pushed to slide through the meshing of the first transmission gear, the second transmission gear and the third transmission gear, and the cleaning groove is opened for the second cleaning plate to pass through.

[0025] Preferably, the inner wall of the sliding groove is provided with a distance sensor, the cleaning pipe is provided with a cleaning valve, and the machine body is provided with a controller, the controller is signal connected with the distance sensor and the cleaning valve, and the controller is used for controlling the opening and closing of the cleaning valve according to the measurement data of the distance sensor.

[0026] By adopting the technical scheme, when the closing plate moves to open the cleaning groove for the second cleaning plate to insert, the detection result of the distance sensor is less than the set value, the controller controls the opening of the cleaning valve, water is supplied to the cleaning nozzle for spraying through the cleaning pipe, and the second cleaning plate entering the cleaning cavity is sprayed and cleaned, after a period of cleaning, the driving motor is started to drive the second cleaning plate to rise and separate from the cleaning cavity, the closing plate is manually pushed to close the cleaning groove, the detection result of the distance sensor is greater than the set value at this time, the controller controls the closing of the cleaning valve, and the spraying is ended, the operation is simplified, the start and end of the spraying are automatically controlled, and the convenience of use is improved.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] By setting the machine body, filter cloth, air inlet groove, mounting groove, first mounting roller, second mounting roller and protective net, the filter cloth is annularly sleeved on the first mounting roller and the second mounting roller in the mounting groove and passes through the air inlet groove of the machine body to filter air, in use, the air suction centrifugal blower inhales air, the air passes through the air inlet groove and enters the air suction centrifugal blower after being filtered under the filtering action of the protective net and the double-layer filter cloth, the double-layer filter cloth is set to reduce the possibility of air impurities damaging the single-layer filter cloth and then entering the air suction centrifugal blower, reduce the possibility of failure of the filtering function, ensure the stability of the filtering, and reduce the possibility of damage to the air suction centrifugal blower;

[0029] By setting the first cleaning plate, mounting cavity, driving motor, first driving sprocket, second driving sprocket and driving chain, the driving motor is started to drive the first mounting roller and the first driving sprocket in the mounting cavity to rotate, the first driving sprocket rotates to drive the second driving sprocket to rotate through the driving sprocket, and then drives the second mounting roller to rotate, so as to drive the wrapped filter cloth to rotate, in this process, the filter cloth rubs the first cleaning plate to clean the surface of the filter cloth, reduces the possibility of air particulate impurities blocking the filter cloth mesh to affect the filtering effect function, and protects the filtering function.

[0030] By setting the second cleaning plate, connecting rod, cleaning cavity, cleaning groove, cleaning nozzle and cleaning pipe, the second cleaning plate is connected with the driving chain through the connecting rod, when the driving motor drives the filter cloth to move, the driving chain drives the connecting rod to move, so as to drive the second cleaning plate to move and clean the protective net, the second cleaning plate moves and enters the cleaning cavity after passing through the cleaning groove, at this time, after connecting the cleaning water source through the cleaning pipe, the second cleaning plate can be cleaned by the cleaning nozzle, the operation is simple and convenient, and the protective net is cleaned to ensure the cleanliness of the air inlet. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a whole schematic diagram of an automatic air filtering device of an air suspension centrifugal blower provided by the embodiment of the present application.

[0032] Figure 2 It is a schematic diagram for reflecting the position relationship between the components in the machine body after the machine body is taken out.

[0033] Figure 3 It is a sectional view for reflecting the internal chamber structure of the machine body.

[0034] Figure 4 It is a sectional view for reflecting the structure of the driving assembly.

[0035] Figure 5 It is a sectional view for reflecting the structure of the transmission assembly.

[0036] Figure 6 It is a sectional view for reflecting the connection relationship between the third transmission rack and the first transmission gear.

[0037] Figure 7 It is a sectional view for reflecting the structure of the closing plate.

[0038] Figure 8 It is a control block diagram of an automatic air filtering device of an air suspension centrifugal blower provided by the embodiment of the present application.

[0039] Explanation of reference signs: 1, machine body; 11, air inlet slot; 111, protective net; 12, mounting slot; 13, mounting cavity; 131, moving slot; 132, spring slot; 133, auxiliary spring; 14, auxiliary slot; 15, cleaning cavity; 151, cleaning slot; 152, sliding slot; 153, communication slot; 2, filter cloth; 21, first mounting roller; 22, second mounting roller; 3, driving assembly; 31, driving motor; 32, first driving sprocket; 33, second driving sprocket; 34, driving chain; 4, second cleaning plate; 41, connecting rod; 411, abutment rod; 42, first cleaning plate; 5, cleaning pipe; 51, cleaning nozzle; 52, cleaning valve; 53, closing plate; 531, distance sensor; 532, third transmission rack; 533, second transmission gear; 6, transmission assembly; 61, first transmission gear; 62, first transmission rack; 63, second transmission rack; 7, controller. DETAILED DESCRIPTION

[0040] The following will be described in detail below with reference to the accompanying drawings Figures 1-8 The present application is further described in detail.

[0041] The embodiment of the present application discloses an automatic air filtering device of an air suspension centrifugal blower. Referring to Figures 1 to 4 It comprises a square machine body 1 and an annular filter cloth 2. The machine body 1 is installed at the air inlet of the air suspension centrifugal blower by welding or bolts and the like. The machine body 1 is provided with a square air inlet slot 11. The top wall and the bottom wall of the air inlet slot 11 are provided with mounting slots 12. The first mounting roller 21 and the second mounting roller 22 are respectively rotatably arranged in the mounting slots 12. The first mounting roller 21 is arranged in the mounting slot 12 of the bottom wall of the air inlet slot 11. The second mounting roller 22 is arranged in the mounting slot 12 of the top wall of the air inlet slot 11. The filter cloth 2 is adapted to be arranged on the first mounting roller 21 and the second mounting roller 22 and shield the air inlet slot 11. The two side walls of the mounting slot 12 are provided with auxiliary slots 14. The filter cloth 2 is inserted into the auxiliary slots 14 and can move in the auxiliary slots 14. Double-layer filtering is performed by the annular filter cloth 2, which effectively reduces the risk of filtering failure after the filter cloth 2 is damaged, ensures the stability of filtering, and reduces the possibility of damage of the air suspension centrifugal blower.

[0042] In order to ensure the stability of filtering, referring to Figures 2 to 4The first cleaning plate 42 is slidably arranged in the mounting groove 12 of the bottom wall of the air inlet chute 11, and has a plurality of cleaning bristles (not shown in the figure). The first cleaning plate 42 is inserted into the mounting cavity 13, and is arranged directly below the first mounting roller 21. The top wall of the first cleaning plate 42 abuts against the filter cloth 2 below the first mounting roller 21. The machine body 1 is provided with a driving assembly 3 for driving the first mounting roller 21 and the second mounting roller 22 to rotate. The machine body 1 is provided with the mounting cavity 13 on both sides of the air inlet chute 11. The mounting cavity 13 is communicated with the air inlet chute 11 through the auxiliary groove 14, and is communicated with the mounting groove 12. The filter cloth 2, the first mounting roller 21 and the second mounting roller 22 are inserted into the mounting cavity 13. The first mounting roller 21 and the second mounting roller 22 are driven to rotate by the driving assembly 3, so that the filter cloth 2 is moved and rotated. The filter cloth 2 is cleaned on the surface by the first cleaning plate 42 while moving, so as to reduce the possibility that foreign particles block the mesh of the filter cloth 2 and affect the filtering, and ensure the stability of the filtering.

[0043] In order to improve the convenience of operation, with reference to Figure 2 and Figure 3 , the driving assembly 3 comprises a driving motor 31, a first driving sprocket 32, a second driving sprocket 33 and a driving chain 34. The driving motor 31 is fixedly arranged on the outer side wall of the machine body 1. The first driving sprocket 32 and the second driving sprocket 33 are rotatably arranged in the mounting cavity 13. The first driving sprocket 32 is coaxially and fixedly sleeved on the first mounting roller 21. The second driving sprocket 33 is coaxially and fixedly sleeved on the second mounting roller 22. The driving chain 34 is meshingly sleeved on the first driving sprocket 32 and the second driving sprocket 33. The first mounting roller 21 and the first driving sprocket 32 are driven to rotate by starting the driving motor 31, and the second driving sprocket 33 is driven to rotate under the transmission of the driving chain 34, so as to drive the second mounting roller 22 to rotate, and realize the driving of the filter cloth 2. The operation is simple and convenient, and is convenient to use.

[0044] In order to improve the durability, with reference to Figure 2 , Figure 4 and Figure 5The body 1 is provided with a protective net 111 (not shown in the drawing) in the air inlet groove 11, the inner wall of the air inlet groove 11 is provided with a moving groove 131 communicated with the installation cavity 13, the second cleaning plate 4 is slidably arranged in the moving groove 131 and inserted into the installation cavity 13 and the air inlet groove 11, the second cleaning plate 4 is provided with a plurality of cleaning brush hairs (not shown in the drawing) on the side close to the protective net 111, and the second cleaning plate 4 can abut against the surface of the protective net 111 away from the filter cloth 2. The driving chain 34 is fixedly provided with an L-shaped connecting rod 41, the connecting rod 41 is higher than the top wall of the air inlet groove 11, and the inner wall of the connecting rod 41 is fixedly connected with the end wall of the top of the second cleaning plate 4. The protective net 111 is arranged to reduce the possibility of damage to the filter cloth 2 by large particles, thereby improving the durability of the filter cloth 2, and the second cleaning plate 4 is moved by the driving assembly 3 to clean the protective net 111, which is simple and convenient to operate and improves the convenience of cleaning the protective net 111.

[0045] In order to facilitate cleaning, referring to Figure 5 and Figure 6 , the body 1 is provided with a cleaning cavity 15 below the air inlet groove 11, the cleaning cavity 15 is arranged below the protective net 111, the top wall of the cleaning cavity 15 is provided with a cleaning groove 151 communicated with the air inlet groove 11, the moving groove 131 and the installation cavity 13, and the second cleaning plate 4 can pass through the cleaning groove 151 and enter the cleaning cavity 15. A plurality of cleaning nozzles 51 are fixedly arranged on the inner wall of the side close to the filter cloth 2 of the cleaning cavity 15, the body 1 is provided with a cleaning pipe 5 connected with the cleaning nozzles 51, the cleaning pipe 5 is connected with a cleaning water source through a pipeline, and the body 1 is provided with a drain pipe inserted into the cleaning cavity 15. After the driving motor 31 drives the driving chain 34 to move, the second cleaning plate 4 is moved by the connecting rod 41, the second cleaning plate 4 continues to move with the driving chain 34 after cleaning and enters the cleaning cavity 15 through the cleaning groove 151, at this time, the second cleaning plate 4 can be sprayed and cleaned by the cleaning nozzles 51, which is simple and convenient to operate and facilitates cleaning.

[0046] In order to facilitate use, referring to Figure 5 and Figure 6The inner wall of the installation groove 12 is provided with a communication groove 153 communicated with the cleaning groove 151, and the first cleaning plate 42 can slide through the communication groove 153 into the cleaning cavity 15. The communication groove 153 is obliquely arranged, and a transmission assembly 6 is arranged between the first cleaning plate 42 and the connecting rod 41, and the transmission assembly 6 is used for driving connection between the first cleaning plate 42 and the connecting rod 41. The transmission assembly 6 comprises a first transmission rack 62, a second transmission rack 63 and a plurality of first transmission gears 61, the first transmission gears 61 are in one-to-one engagement and are rotatably arranged in the installation cavity 13, the bottom wall of the installation cavity 13 is provided with a spring groove 132, the first transmission rack 62 is slidably arranged in the spring groove 132, the side wall of the connecting rod 41 away from the second cleaning plate 4 is fixedly provided with an abutting rod 411, the top wall of the first transmission rack 62 can abut against the bottom wall of the abutting rod 411, and the spring groove 132 is provided with an auxiliary spring 133 connected between the bottom wall of the spring groove 132 and the bottom wall of the first transmission rack 62. The second transmission rack 63 is arranged on the surface of the first cleaning plate 42, and the first transmission gears 61 at both ends are engaged with the first transmission rack 62 and the second transmission rack 63 respectively. In another embodiment, the first transmission rack 62 can be fixedly arranged on the connecting rod 41 and engaged with the first transmission gear 61 located at the highest position. When the connecting rod 41 is driven by the drive chain 34 to descend by a certain distance, the connecting rod 41 abuts against the first transmission rack 62, and the connecting rod 41 continues to descend, the first transmission rack 62 drives the first transmission gear 61 to rotate, thereby driving the first cleaning plate 42 to move through the transmission of the second transmission rack 63, and the first cleaning plate 42 is inserted into the cleaning cavity 15 through the communication groove 153, so that the first cleaning plate 42 and the second cleaning plate 4 can be conveniently cleaned at the same time, the operation is simplified, and the convenience of use is improved.

[0047] For convenience of use, with reference to Figure 6 and Figure 7 The inner wall of the cleaning groove 151 is provided with a sliding groove 152, the sliding groove 152 is slidably provided with a closing plate 53 which can be inserted into the cleaning groove 151 and close the cleaning groove 151, the sliding groove 152 is communicated with the installation cavity 13, and the closing plate 53 is inserted into the installation cavity 13. The two ends of the closing plate 53 are fixedly provided with a third transmission rack 532, the third transmission rack 532 is fixedly arranged on the side wall of the closing plate 53 close to the filter cloth 2 and located in the installation cavity 13, a plurality of second transmission gears 533 are rotatably arranged in the installation cavity 13, the second transmission gears 533 are in one-to-one engagement, the second transmission gear 533 close to the first transmission gear 61 is engaged with the first transmission gear 61 at the second highest position, and the second transmission gear 533 away from the first transmission gear 61 is engaged with the third transmission rack 532.

[0048] When the second cleaning plate 4 is lowered, the connecting rod 41 drives the first transmission gear 61 to rotate through the first transmission rack 62, and the first transmission gear 61 drives the second transmission gear 533 to rotate, thereby moving the closing plate 53 out of the cleaning groove 151 through the third transmission rack 532, so as to provide a space for the second cleaning plate 4 to pass through the cleaning groove 151, which is simple and convenient to operate.

[0049] In order to facilitate use, referring to Figures 6 to 8 , the body 1 is detachably provided with a distance sensor 531 inserted into the sliding groove 152 to measure the moving position of the closing plate 53, the cleaning pipe 5 is provided with a cleaning valve 52, and the body 1 is provided with a controller 7, which is signal-connected with the driving motor 31, the distance sensor 531 and the cleaning valve 52, and is used to control the opening and closing of the cleaning valve 52 and the closing of the driving motor 31 according to the measurement data of the distance sensor 531. After the closing plate 53 is moved to provide a space for the second cleaning plate 4 to insert into the cleaning groove 151, the detection result of the distance sensor 531 is less than a set value, the controller 7 controls the driving motor 31 to be closed and the cleaning valve 52 to be opened, so as to provide water through the cleaning pipe 5 to the cleaning nozzle 51 for spraying, and the second cleaning plate 4 in the cleaning cavity 15 is sprayed and cleaned. When cleaning for a period of time, the driving motor 31 is started, the second cleaning plate 4 is lifted to be separated from the cleaning cavity 15 through the driving chain 34, the closing plate 53 is driven to close the cleaning groove 151 through the gear and the rack, at this time, the detection result of the distance sensor 531 is greater than the set value, the controller 7 controls the cleaning valve 52 to be closed, and the spraying is ended, which simplifies the operation, automatically controls the start and end of the spraying, and improves the convenience of use.

[0050] The implementation principle of the automatic air filtering device of the air suspension centrifugal blower is as follows: the filter cloth 2 is close to the air inlet side of the protective net 111, the double-layer filter cloth 2 is used to close the air inlet groove 11, so as to reduce the possibility that sundries damage the filter cloth 2 and cause the filtering function to be lost, and when cleaning is needed, the air inlet is stopped, the driving motor 31 is started, the driving motor 31 drives the first mounting roller 21 and the second mounting roller 22 to rotate through the chain wheel and the chain, and then drives the filter cloth 2 to rotate, the filter cloth 2 passes through the first cleaning plate 42, and the bristles on the first cleaning plate 42 are used for cleaning, after the driving motor 31 is continuously started, the filter cloth 2 at the air inlet of the air inlet groove 11 is cleaned by the first cleaning plate 42, and at the same time, the second cleaning plate 4 is driven by the connecting rod 41 to move to clean the protective net 111, at this time, the driving motor 31 is continuously started, and in this process, the connecting rod 41 and the second cleaning plate 4 continuously descend, the first transmission rack 62 is pushed by the abutting rod 411, the first transmission gear 61 and the second transmission rack 63 are driven to move, the first cleaning plate 42 is driven to move through the communication groove 153 and is inserted into the cleaning cavity 15, at the same time, the second transmission gear 533 and the third transmission rack 532 are driven to move the closing plate 53 to open the cleaning groove 151, the second cleaning plate 4 moves through the cleaning groove 151 and enters the cleaning cavity 15, at this time, the controller 7 stops the driving motor 31 and opens the cleaning valve 52, the cleaning pipe 5 supplies water for the cleaning nozzle 51 to spray, and the first cleaning plate 42 and the second cleaning plate 4 below and on the side of the cleaning nozzle 51 are cleaned.

[0051] After a period of cleaning, the driving motor 31 is started, the second cleaning plate 4 is lifted, the first cleaning plate 42 and the closing plate 53 are reset through the transmission of the gear and the rack, at the same time, the controller 7 closes the cleaning valve 52 according to the result of the distance sensor 531, the operation is simple and convenient, and the filter cloth 2 is conveniently cleaned to ensure the filtering function.

[0052] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic air filtration device for an air-suspended centrifugal blower, comprising a body (1) and a filter cloth (2), characterized in that: The machine body (1) is provided with an air inlet groove (11). The top and bottom walls of the air inlet groove (11) are each provided with an mounting groove (12). A first mounting roller (21) and a second mounting roller (22) are rotatably mounted within the mounting groove (12). The first mounting roller (21) and the second mounting roller (22) are positioned on the upper and lower sides of the air inlet groove (11). The filter cloth (2) is wound around the first mounting roller (21) and the second mounting roller (22). The filter cloth (2) passes through the air inlet groove (11). The inner wall of the air inlet groove (11) is provided with a protective net (111) capable of covering the air inlet groove. A first cleaning plate (42) is provided within the mounting groove (12), and the first cleaning plate (42) abuts against the filter cloth (2). The machine body (1) is provided with a drive assembly (3), which is used to drive the first mounting roller (21) and the second mounting roller (22) to rotate. The machine body (1) is provided with a mounting cavity (13) communicating with the mounting groove (12). The drive assembly (3) includes a drive motor (31), a first drive sprocket (32), a second drive sprocket (33), and a drive chain (34). The drive motor (31) is mounted on the machine body (1). The first drive sprocket (32) and the second drive sprocket (33) are both rotatably mounted in the mounting cavity (13). The shaft of the drive motor (31) is connected to the first mounting roller (21). The first drive sprocket (32) is mounted on the first mounting roller (21). The second drive sprocket (33) is mounted on the second mounting roller (22), and the drive chain (34) is meshed and sleeved on the first drive sprocket (32) and the second drive sprocket (33). The machine body (1) is slidably provided with a second cleaning plate (4). After sliding, the second cleaning plate (4) passes through the air inlet groove (11) and abuts against the protective net (111). Both ends of the second cleaning plate (4) are inserted into the mounting cavity (13). A connecting rod (41) is provided between the second cleaning plate (4) and the drive chain (34) for connecting the second cleaning plate (4) and the drive chain (34). The machine body (1) is provided with a cleaning cavity (15), and the inner wall of the air inlet groove (11) is provided with a groove that communicates with the cleaning cavity (15). The cleaning tank (151) is provided. After the second cleaning plate (4) slides through the cleaning tank (151), it enters the cleaning chamber (15). The cleaning chamber (15) is provided with a cleaning nozzle (51) for spray cleaning. The body (1) is provided with a cleaning pipe (5) connected to the cleaning nozzle (51). The mounting groove (12) is provided with a connecting groove (153) communicating with the cleaning tank (151). After the first cleaning plate (42) slides through the connecting groove (153), it enters the cleaning chamber (15). A transmission assembly (6) is provided between the first cleaning plate (42) and the connecting rod (41). The transmission assembly (6) is used to drive the first cleaning plate (42) to slide according to the movement of the connecting rod (41).The transmission assembly (6) includes a first transmission rack (62), a second transmission rack (63), and a first transmission gear (61). The first transmission gear (61) is rotatably disposed within the mounting cavity (13). The first transmission rack (62) is connected to the connecting rod (41) and can mesh with the first transmission gear (61). The second transmission rack (63) is disposed on the first cleaning plate (42) and meshes with the first transmission gear (61).

2. The automatic air filtration device for an air-suspended centrifugal blower according to claim 1, characterized in that: The inner wall of the air inlet slot (11) is provided with an auxiliary slot (14) that communicates with the mounting cavity (13), and the filter cloth (2) passes through the auxiliary slot (14) and enters the mounting cavity (13).

3. The automatic air filtration device for an air-suspended centrifugal blower according to claim 1, characterized in that: The inner wall of the cleaning tank (151) is provided with a sliding groove (152), and a sealing plate (53) that can be inserted into the cleaning tank (151) is slidably disposed in the sliding groove (152). The sealing plate (53) is provided with a third transmission rack (532). A second transmission gear (533) is rotatably disposed in the mounting cavity (13). The second transmission gear (533) is meshed between the first transmission gear (61) and the third transmission rack (532).

4. The automatic air filtration device for an air-suspended centrifugal blower according to claim 3, characterized in that: The inner wall of the sliding groove (152) is provided with a distance sensor (531), the cleaning pipe (5) is provided with a cleaning valve (52), and the body (1) is provided with a controller (7). The controller (7) is connected to the distance sensor (531) and the cleaning valve (52) by signal. The controller (7) is used to control the opening and closing of the cleaning valve (52) according to the measurement data of the distance sensor (531).

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