High-speed centrifugal fan

Abstract

The invention relates to the technical field of centrifugal fan equipment, in particular to a high-speed centrifugal fan which comprises a base, a driving motor is mounted at the upper end of the base, a connecting shaft is fixedly connected to the output end of the driving motor, a volute is fixedly connected to the end of the base, a supporting frame is arranged on the inner side of the volute, and a rotating shaft is arranged on the supporting frame. A connecting block is fixedly connected to the middle of the supporting frame, the connecting block is fixedly connected with the connecting shaft, multiple sets of fan blades are fixedly connected to the inner side of the supporting frame, a filter screen assembly and a cleaning assembly are arranged on the inner side of the end, away from the driving motor, of the supporting frame, and a double-channel assembly is arranged on the outer side of the volute. And a moving assembly is arranged at the end, away from the driving motor, of the volute. According to the dust collection device, dust is intensively conveyed to a designated collection point after the filter screen is cleaned through the double-channel assembly, and the cleaned dust is prevented from entering a device connected with an air inlet of equipment.

Description

Technical Field

[0001] The invention relates to the technical field of centrifugal fan equipment, in particular to a high-speed centrifugal fan. Background Art

[0002] A high-speed centrifugal fan is an advanced device that uses an ultra-high speed (usually tens of thousands of revolutions per minute) impeller to generate strong centrifugal force to transport or compress gas. Its core advantage lies in the use of lightweight materials (such as titanium alloy and carbon fiber) and magnetic bearing technology, which significantly improves the single-stage pressure ratio (1.5-4 times that of conventional fans). It has a compact structure, high efficiency (75% to 85%) and wide operating condition adjustment capabilities. It is widely used in industrial vacuum systems, turbocharging, environmentally friendly flue gas treatment and laboratory clean fields, and has become the preferred solution for scenarios with high pressure and small flow requirements.

[0003] After searching, the publication number is (CN118242298A), which discloses an anti-surge device for an ultra-high-speed centrifugal fan, which records "including a filter assembly and a cleaning assembly installed inside the connecting cover, the filter assembly is used to clean the filter screen, the driving assembly is connected to the cleaning assembly and drives the cleaning assembly, and several cleaning assemblies are installed on the outside of the filter assembly to dredge the inside of the filter assembly. The present invention arranges the cleaning assembly and the filter assembly. During the rotation of the impeller, the outer sleeve is driven to rotate at the same time, and dust is located between each spiral of the spiral rod. The rotating shaft is used for the rotation of the spiral rod. The housing, four pinions and the driven gear are meshed with each other to form a planetary gear set. When the turntable rotates, the spiral rod is rotated by the planetary gear set, and the dust between each spiral is discharged. During the rotation of the outer sleeve, the turntable is driven to rotate at the same time, and the cleaning brush on the turntable cleans the filter screen to prevent the filter screen from being blocked."

[0004] When using the above technology, it was found that the following technical problems exist in the prior art: when the above equipment cleans the air inlet filter, the negative pressure of the centrifuge tends to suck dust into the interior and discharge it through the air outlet, thereby contaminating the device connected to the air outlet. Summary of the invention

[0005] In order to solve the technical problems raised in the background technology, the present invention provides a high-speed centrifugal fan, including a base, a drive motor is installed on the upper end of the base, the output end of the drive motor is fixedly connected to a connecting shaft, the end of the base is fixedly connected to a volute, a support frame is arranged on the inner side of the volute, a connecting block is fixedly connected to the middle part of the support frame, the connecting block is fixedly connected to the connecting shaft, a plurality of groups of fan blades are fixedly connected to the inner side of the support frame, a filter assembly and a cleaning assembly are arranged on the inner side of the support frame away from the drive motor, a double-channel assembly is arranged on the outer side of the volute, and a moving assembly is arranged on the end of the volute away from the drive motor.

[0006] As a further improvement of the present technical solution, the filter assembly includes a connecting ring, a connecting rod, and a filter ring. A connecting ring is fixedly connected to the outer side of the connecting shaft. An end of the connecting ring close to the driving motor is fixedly connected to multiple groups of connecting rods, and an end of the multiple groups of connecting rods away from the driving motor is fixedly connected to multiple groups of filter rings.

[0007] As a further improvement of the present technical solution, the dual-channel component includes an equipment air inlet, a dust collection port, a limiting groove, a baffle, a sawtooth block, a rotating rod, and a gear column. The outer side of the volute is fixedly connected with the equipment air inlet and the dust collection port. The equipment air inlet is located at the upper end of the dust collection port. A limiting groove is provided on the inner side of the volute. The inner side of the limiting groove is slidably connected with a baffle. The end of the baffle away from the volute is fixedly connected with a sawtooth block. The inner side of the volute is rotatably connected with a rotating rod. The outer side of the rotating rod is fixedly connected with a gear column, and the gear column is meshingly connected with the sawtooth block.

[0008] As a further improvement of the present technical solution, the moving assembly includes a rotating ring, a first gear ring, a threaded rod, a first gear block, and a moving disk. The end of the volute away from the driving motor is rotatably connected to the rotating ring, the inner side of the rotating ring away from the end of the volute is fixedly connected to the first gear ring, the end of the volute close to the rotating ring is rotatably connected to multiple groups of threaded rods, the end of the threaded rod close to the first gear ring is fixedly connected to the first gear block, the first gear block is meshed with the threaded rod, and moving disks are threadedly connected between the multiple groups of threaded rods.

[0009] As a further improvement of the present technical solution, the cleaning assembly includes a replacement rack, a sleeve ring, a brush, a threaded rotating rod, and a threaded groove. A sleeve ring is provided on the outside of the connecting shaft and at the end of the connecting ring away from the driving motor. The outside of the sleeve ring is fixedly connected to a replacement rack, and the inside of the replacement rack is fixedly connected to multiple groups of brushes. A threaded groove is provided on the inner side of the connecting shaft away from the driving motor, and a threaded rotating rod is threadedly connected to the inner side of the threaded groove. A clamping assembly is provided between the replacement rack and the movable disk.

[0010] As a further improvement of the present technical solution, the clamping assembly includes a spring, a clamping rod, and a clamping slot. The inner side of the replacement frame away from the sleeve ring is slidably clamped with a clamping rod. A spring is provided on the inner side of the replacement frame. The two ends of the spring are respectively fixedly connected to the replacement frame and the clamping rod. A clamping slot is provided on the inner side of the movable disk, and the clamping slot is slidably clamped with the clamping rod.

[0011] As a further improvement of the present technical solution, the dust collection port and the end of the equipment air inlet away from the volute are both fixedly connected with a bracket, an equipment connecting head is provided on the outer side of the dust collection port, a connecting groove is provided on the inner side of the equipment connecting head close to one end of the bracket, the connecting groove is slidably engaged with the bracket, a first connecting frame is fixedly connected to the outer side of the bracket, a second connecting frame is fixedly connected to the outer side of the equipment connecting head close to one end of the bracket, and multiple sets of screws are provided between the first connecting frame and the second connecting frame.

[0012] As a further improvement of the present technical solution, a motor frame is provided at one end of the volute close to the driving motor, a servo motor is installed on the inner side of the motor frame, an output end of the servo motor is fixedly connected to an output gear, an end of the rotating rod close to the output gear is fixedly connected to a second gear block, and the output gear is meshingly connected to the second gear block.

[0013] As a further improvement of the present technical solution, a second gear ring is fixedly connected to the outer side of the rotating ring away from the first gear ring, and a third gear block is fixedly connected to the end of the rotating rod close to the second gear ring, and the second gear ring is meshingly connected to the third gear block.

[0014] As a further improvement of the technical solution, a toggle groove is provided on the inner side of the replacement frame, a toggle block is fixedly connected to the outer side of the clamping rod and located on the inner side of the toggle groove, and the toggle block is slidably connected to the toggle groove.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this high-speed centrifugal fan, a dual-channel component is used to centrally transport dust to a designated collection point after cleaning the filter screen to prevent the cleaned dust from entering a device connected to the air inlet of the equipment.

[0017] 2. In this high-speed centrifugal fan, when the dust collection port is connected to the volute, the cleaning component cleans the filter component, and when the equipment air inlet is connected to the volute, the filter component is no longer cleaned, thereby preventing the device from continuously cleaning the filter component, thereby preventing the cleaned dust from entering the equipment connected to the equipment air inlet.

[0018] 3. In this high-speed centrifugal fan, the snap-on assembly makes it more convenient for the staff to replace and clean the assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the overall back side of the present invention;

[0021] Figure 3It is a structural schematic diagram of the filter assembly of the present invention;

[0022] Figure 4 It is a schematic diagram of the structure of the dual-channel assembly of the present invention;

[0023] Figure 5 It is a schematic structural diagram of the gear column of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the sawtooth block of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the thread groove of the present invention;

[0026] Figure 8 It is a structural schematic diagram of the threaded rod of the present invention;

[0027] Fig. 9 It is a structural schematic diagram of the card slot of the present invention;

[0028] Fig.10 It is a structural schematic diagram of the spring of the present invention;

[0029] Fig.11 It is a structural schematic diagram of the connecting groove of the present invention.

[0030] The meaning of each number in the figure is:

[0031] 101, base; 102, drive motor; 103, volute; 104, support frame; 105, connection block; 106, fan blade; 107, connection shaft; 201, connection ring; 202, connection rod; 203, filter ring; 301, equipment air inlet; 302, dust collection port; 303, limit groove; 304, baffle; 305, sawtooth block; 306, rotating rod; 307, gear column; 401, rotating ring; 402, first gear ring; 403, threaded rod; 404, first gear block; 405, moving plate; 50 1. Replacement rack; 502. Socket ring; 503. Brush; 504. Threaded rod; 505. Threaded groove; 601. Spring; 602. Clamping rod; 603. Clamping groove; 701. Clamping rack; 702. Equipment connector; 703. Connecting groove; 704. First connecting rack; 705. Second connecting rack; 706. Screw; 801. Motor rack; 802. Output gear; 803. Second gear block; 804. Servo motor; 901. Second gear ring; 902. Third gear block; 951. Toggle groove; 952. Toggle block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example 1

[0034] like Figure 1 - Fig.11 As shown, a high-speed centrifugal fan comprises a base 101, a driving motor 102 is mounted on the upper end of the base 101, a connecting shaft 107 is fixedly connected to the output end of the driving motor 102, a volute 103 is fixedly connected to the end of the base 101, a support frame 104 is arranged inside the volute 103, a connecting block 105 is fixedly connected to the middle of the support frame 104, the connecting block 105 is fixedly connected to the connecting shaft 107, a plurality of fan blades 106 are fixedly connected to the inner side of the support frame 104, and a start The driving motor 102 is driven, and the connecting shaft 107 is driven to rotate through the output end of the driving motor 102, so that the connecting shaft 107 drives the support frame 104 and the fan blades 106 to rotate on the inner side of the volute 103 through the connecting block 105, so that the gas between the fan blades 106 is thrown to the outer edge, and the inner side of the support frame 104 away from the driving motor 102 is provided with a filter assembly and a cleaning assembly, the outer side of the volute 103 is provided with a double-channel assembly, and the end of the volute 103 away from the driving motor 102 is provided with a moving assembly.

[0035] In order to collect the dust after cleaning the filter, the dual-channel component includes an equipment air inlet 301, a dust collection port 302, a limiting groove 303, a baffle 304, a sawtooth block 305, a rotating rod 306, and a gear column 307. The outer side of the volute 103 is fixedly connected with the equipment air inlet 301 and the dust collection port 302. The equipment air inlet 301 is located at the upper end of the dust collection port 302. The inner side of the volute 103 is provided with a limiting groove 303. The inner side of the limiting groove 303 is slidably connected with a baffle 304. The baffle 304 slides on the inner side of the limiting groove 303. The end of the baffle 304 away from the volute 103 is fixedly connected with the sawtooth block 305 The inner side of the volute 103 is rotatably connected to a rotating rod 306, and the outer side of the rotating rod 306 is fixedly connected to a gear column 307, and the gear column 307 is meshed with the sawtooth block 305. The rotating rod 306 is rotated to drive the gear column 307 to rotate through the rotating rod 306, and the gear column 307 is meshed with the sawtooth block 305, thereby driving the baffle 304 to slide on the inner side of the limit groove 303, and then when the filter assembly needs to be cleaned, the equipment air inlet 301 is closed by the baffle 304, and the dust collection port 302 is opened, so that the gas drives the dust into the inner side of the dust collection port 302, thereby the cleaned dust is concentrated and transported to the designated collection point.

[0036] The dust collecting port 302 and the end of the equipment air inlet 301 away from the volute 103 are both fixedly connected with a bracket 701, and an equipment connecting head 702 is arranged on the outer side of the dust collecting port 302, and a connecting groove 703 is opened on the inner side of the equipment connecting head 702 close to the end of the bracket 701, and the connecting groove 703 is slidably engaged with the bracket 701, and a first connecting frame 704 is fixedly connected to the outer side of the bracket 701, and a second connecting frame 705 is fixedly connected to the outer side of the equipment connecting head 702 close to the end of the bracket 701, and a plurality of groups of screws 706 are arranged between the first connecting frame 704 and the second connecting frame 705, and the connecting groove 703 is put on the outer side of the bracket 701, and the screws 706 are turned at any time to connect the first connecting frame 704 and the second connecting frame 705 together, so that the staff can assemble with the device more conveniently through the bracket 701 and the connecting groove 703.

[0037] A motor frame 801 is provided at one end of the volute 103 close to the driving motor 102, and a servo motor 804 is installed on the inner side of the motor frame 801. The output end of the servo motor 804 is fixedly connected to an output gear 802, and the end of the rotating rod 306 close to the output gear 802 is fixedly connected to a second gear block 803. The output gear 802 is meshedly connected with the second gear block 803. When the servo motor 804 is started, the output gear 802 is driven to rotate through the output end of the servo motor 804, thereby driving the second gear block 803 to rotate through the output gear 802.

[0038] During operation, the connecting groove 703 is sleeved on the outer side of the bracket 701, and then the screw 706 is turned to connect the first connecting frame 704 and the second connecting frame 705 together. The bracket 701 and the connecting groove 703 allow the staff to assemble with other devices more conveniently. Before cleaning the filter assembly, the servo motor 804 is started, and the output end of the servo motor 804 drives the output gear 802 to rotate, thereby driving the second gear block 803 to rotate through the output gear 802, so that the second gear block 803 drives the rotating rod 306 to rotate, and the rotating rod 306 drives the gear column 307 to rotate, and the gear column 307 is engaged with the sawtooth block 305, thereby driving the baffle 304 to slide on the inner side of the limit groove 303, and then when the filter assembly needs to be cleaned, Before cleaning, the passage between the equipment air inlet 301 and the volute 103 is closed by the baffle 304, the passage between the dust collection port 302 and the volute 103 is opened, and then the filter assembly is cleaned. After cleaning, the drive motor 102 is started, so that the gas drives the dust to enter the inner side of the dust collection port 302, and the connecting shaft 107 is driven to rotate by the output end of the drive motor 102, so that the connecting shaft 107 drives the support frame 104 and the fan blades 106 to rotate on the inner side of the volute 103 through the connecting block 105, so that the gas between the fan blades 106 drives the dust to the inner side of the dust collection port 302, and the dust after cleaning the filter is concentratedly transported to the designated collection point through the double-channel assembly to prevent the cleaned dust from entering the device connected to the equipment air inlet 301.

[0039] Example 2

[0040] like Figure 1 - Fig.10 As shown, the filter assembly includes a connecting ring 201, a connecting rod 202, and a filter ring 203. The connecting ring 201 is fixedly connected to the outer side of the connecting shaft 107. The end of the connecting ring 201 close to the driving motor 102 is fixedly connected to multiple groups of connecting rods 202, and dust is filtered according to the size of the gaps between the multiple groups of connecting rods 202. The ends of the multiple groups of connecting rods 202 away from the driving motor 102 are fixedly connected to multiple groups of filter rings 203.

[0041] The second gear ring 901 is fixedly connected to the outer side of one end of the rotating ring 401 away from the first gear ring 402, and the third gear block 902 is fixedly connected to the end of the rotating rod 306 close to the second gear ring 901. The second gear ring 901 is meshed with the third gear block 902. When the rotating rod 306 rotates, it drives the third gear block 902 to rotate, so that the third gear block 902 drives the rotating ring 401 to rotate through the second gear ring 901.

[0042] The moving assembly includes a rotating ring 401, a first gear ring 402, a threaded rod 403, a first gear block 404, and a moving disk 405. The end of the volute 103 away from the driving motor 102 is rotatably connected to the rotating ring 401, the inner side of the end of the rotating ring 401 away from the volute 103 is fixedly connected to the first gear ring 402, the end of the volute 103 close to the rotating ring 401 is rotatably connected to multiple groups of threaded rods 403, and the end of the threaded rod 403 close to the first gear ring 402 is fixedly connected to the first gear ring 402. Gear block 404, the first gear block 404 is meshedly connected with the threaded rod 403, and a movable disk 405 is threadedly connected between multiple groups of the threaded rods 403. When the rotating ring 401 rotates, the rotating ring 401 drives the first gear block 404 to rotate through the first gear ring 402, thereby driving the threaded rod 403 to rotate, and through the rotation of multiple groups of threaded rods 403, the movable disk 405 is moved close to the volute 103 or away from the volute 103, thereby driving the cleaning component close to or away from the filter screen through the movable disk 405.

[0043] During operation, when the connecting shaft 107 rotates, the multiple groups of filter rings 203 are driven to rotate through the connecting ring 201 and the connecting rod 202. When the rotating rod 306 rotates to drive the dual-channel component to move, the rotating rod 306 also drives the third gear block 902 to rotate, so that the third gear block 902 drives the rotating ring 401 to rotate by engaging with the second gear ring 901, so that the rotating ring 401 drives the first gear block 404 to rotate through the first gear ring 402, thereby driving the threaded rod 403 to rotate, and through the rotation of multiple groups of threaded rods 403, the moving disk 405 is moved close to or away from the volute 103, thereby driving the cleaning component close to or away from the filter screen through the moving disk 405. When the equipment air inlet 301 is connected to the volute 103, the filter screen component is no longer cleaned, thereby preventing the device from continuously cleaning the filter screen component, so that the cleaned dust is prevented from entering the equipment connected to the equipment air inlet 301.

[0044] Example 3

[0045] like Figure 7 - Fig.10As shown, the cleaning assembly includes a replacement frame 501, a sleeve ring 502, a brush 503, a threaded rotating rod 504, and a threaded groove 505. The sleeve ring 502 is provided on the outer side of the connecting shaft 107 and at the end of the connecting ring 201 away from the driving motor 102. The outer side of the sleeve ring 502 is fixedly connected to the replacement frame 501, and the inner side of the replacement frame 501 is fixedly connected to multiple groups of brushes 503, and the multiple groups of connecting rods 202 are cleaned by the brushes 503. The inner side of the end of the connecting shaft 107 away from the driving motor 102 is provided with a threaded groove 505, and the inner side of the threaded groove 505 is threadedly connected with a threaded rotating rod 504. A clamping assembly is provided between the replacement frame 501 and the movable disk 405. The sleeve ring 502 is sleeved on the outer side of the connecting shaft 107, and then the threaded rotating rod 504 is threadedly connected to the threaded groove 505, so that the threaded rotating rod 504 limits the sleeve ring 502.

[0046] The clamping assembly includes a spring 601, a clamping rod 602, and a clamping slot 603. The inner side of the replacement frame 501 away from the end of the sleeve ring 502 is slidably clamped with a clamping rod 602. The inner side of the replacement frame 501 is provided with a spring 601. The two ends of the spring 601 are respectively fixedly connected to the replacement frame 501 and the clamping rod 602. The inner side of the movable plate 405 is provided with a clamping slot 603, and the clamping slot 603 is slidably clamped with the clamping rod 602.

[0047] A toggle groove 951 is provided on the inner side of the replacement frame 501, and a toggle block 952 is fixedly connected to the outer side of the clamping rod 602 and the inner side of the toggle groove 951. The toggle block 952 is slidably connected to the toggle groove 951. The toggle block 952 is toggled to make the toggle block 952 drive the clamping rod 602 to move, and the clamping rod 602 is clamped with the clamping groove 603 through the elastic characteristics of the spring 601, so that the staff can replace the cleaning component conveniently and quickly.

[0048] During operation, the sleeve ring 502 is sleeved on the outer side of the connecting shaft 107, and then the threaded rotating rod 504 is threadedly connected with the threaded groove 505, so that the threaded rotating rod 504 limits the sleeve ring 502, and then the toggle block 952 drives the clamping rod 602 to move. When the replacement rack 501 is placed, the elastic characteristics of the spring 601 make the clamping rod 602 and the clamping groove 603 clamped, so that the staff can replace the cleaning component more conveniently and quickly.

[0049] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0050] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-speed centrifugal fan, characterized in that: The invention comprises a base (101), wherein a driving motor (102) is mounted on the upper end of the base (101), an output end of the driving motor (102) is fixedly connected to a connecting shaft (107), an end of the base (101) is fixedly connected to a volute (103), a support frame (104) is arranged on the inner side of the volute (103), a connecting block (105) is fixedly connected to the middle part of the support frame (104), the connecting block (105) is fixedly connected to the connecting shaft (107), a plurality of groups of fan blades (106) are fixedly connected to the inner side of the support frame (104), a filter assembly and a cleaning assembly are arranged on the inner side of an end of the support frame (104) away from the driving motor (102), a double-channel assembly is arranged on the outer side of the volute (103), and a moving assembly is arranged on the end of the volute (103) away from the driving motor (102).

2. A high-speed centrifugal fan according to claim 1, characterized in that: The filter assembly comprises a connecting ring (201), a connecting rod (202), and a filter ring (203); the connecting ring (201) is fixedly connected to the outer side of the connecting shaft (107); one end of the connecting ring (201) close to the drive motor (102) is fixedly connected to multiple groups of connecting rods (202); and one end of the multiple groups of connecting rods (202) away from the drive motor (102) is fixedly connected to multiple groups of filter rings (203).

3. A high-speed centrifugal fan according to claim 2, characterized in that: The dual-channel component comprises an equipment air inlet (301), a dust collection port (302), a limiting groove (303), a baffle (304), a sawtooth block (305), a rotating rod (306), and a gear column (307); the equipment air inlet (301) and the dust collection port (302) are fixedly connected on the outer side of the volute (103); the equipment air inlet (301) is located at the upper end of the dust collection port (302); a limiting groove (303) is provided on the inner side of the volute (103); the baffle (304) is slidably connected to the inner side of the limiting groove (303); the sawtooth block (305) is fixedly connected to one end of the baffle (304) away from the volute (103); the rotating rod (306) is rotatably connected to the inner side of the volute (103); the gear column (307) is fixedly connected to the outer side of the rotating rod (306); the gear column (307) is meshingly connected to the sawtooth block (305).

4. A high-speed centrifugal fan according to claim 3, characterized in that: The moving assembly comprises a rotating ring (401), a first gear ring (402), a threaded rod (403), a first gear block (404), and a moving disk (405); an end of the volute (103) away from the driving motor (102) is rotatably connected to the rotating ring (401); an inner side of an end of the rotating ring (401) away from the volute (103) is fixedly connected to the first gear ring (402); an end of the volute (103) close to the rotating ring (401) is rotatably connected to multiple groups of threaded rods (403); an end of the threaded rod (403) close to the first gear ring (402) is fixedly connected to the first gear block (404); the first gear block (404) is meshedly connected to the threaded rod (403); and the moving disk (405) is threadedly connected between the multiple groups of threaded rods (403).

5. A high-speed centrifugal fan according to claim 4, characterized in that: The cleaning assembly comprises a replacement frame (501), a sleeve ring (502), a brush (503), a threaded rotating rod (504), and a threaded groove (505); a sleeve ring (502) is provided on the outer side of the connecting shaft (107) and located at the end of the connecting ring (201) away from the driving motor (102); the replacement frame (501) is fixedly connected to the outer side of the sleeve ring (502); a plurality of groups of brushes (503) are fixedly connected to the inner side of the replacement frame (501); a threaded groove (505) is provided on the inner side of the end of the connecting shaft (107) away from the driving motor (102); a threaded rotating rod (504) is threadedly connected to the inner side of the threaded groove (505); and a clamping assembly is provided between the replacement frame (501) and the movable plate (405).

6. A high-speed centrifugal fan according to claim 5, characterized in that: The clamping assembly comprises a spring (601), a clamping rod (602), and a clamping slot (603); the inner side of one end of the replacement frame (501) away from the sleeve ring (502) is slidably clamped with the clamping rod (602); the inner side of the replacement frame (501) is provided with a spring (601); the two ends of the spring (601) are respectively fixedly connected to the replacement frame (501) and the clamping rod (602); the inner side of the movable plate (405) is provided with a clamping slot (603); the clamping slot (603) is slidably clamped with the clamping rod (602).

7. A high-speed centrifugal fan according to claim 3, characterized in that: The dust collection port (302) and the end of the device air inlet (301) away from the volute (103) are both fixedly connected to a bracket (701); an equipment connector (702) is arranged on the outside of the dust collection port (302); a connecting groove (703) is provided on the inner side of the device connector (702) close to one end of the bracket (701); the connecting groove (703) is slidably connected to the bracket (701); a first connecting frame (704) is fixedly connected to the outside of the bracket (701); a second connecting frame (705) is fixedly connected to the outside of the device connector (702) close to one end of the bracket (701); and a plurality of sets of screws (706) are arranged between the first connecting frame (704) and the second connecting frame (705).

8. A high-speed centrifugal fan according to claim 7, characterized in that: A motor frame (801) is provided at one end of the volute (103) close to the drive motor (102), a servo motor (804) is installed inside the motor frame (801), an output end of the servo motor (804) is fixedly connected to an output gear (802), an end of the rotating rod (306) close to the output gear (802) is fixedly connected to a second gear block (803), and the output gear (802) is meshingly connected to the second gear block (803).

9. A high-speed centrifugal fan according to claim 4, characterized in that: The outer side of the rotating ring (401) away from the end of the first gear ring (402) is fixedly connected to the second gear ring (901), and the end of the rotating rod (306) close to the second gear ring (901) is fixedly connected to the third gear block (902), and the second gear ring (901) is meshingly connected to the third gear block (902).

10. A high-speed centrifugal fan according to claim 6, characterized in that: A toggle groove (951) is provided on the inner side of the replacement frame (501), and a toggle block (952) is fixedly connected to the outer side of the clamping rod (602) and located on the inner side of the toggle groove (951), and the toggle block (952) is slidably connected to the toggle groove (951).

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