A high-speed centrifugal fan

Abstract

The present invention relates to the technical field of centrifugal fan equipment. Specifically, it relates to a high-speed centrifugal fan, which includes a base. A driving motor is installed at the upper end of the base. The output end of the driving motor is fixedly connected to a connecting shaft. The end of the base is fixedly connected to a volute. A support frame is arranged inside the volute. A connecting block is fixedly connected to the middle 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 inside of the support frame. A filter screen assembly and a cleaning assembly are arranged inside the support frame at the end far from the driving motor. A double-channel assembly is arranged outside the volute. A moving assembly is arranged at the end of the volute far from the driving motor. The present invention realizes the centralized transportation of dust to a designated collection point after cleaning the filter screen through the double-channel assembly, avoiding the dust after cleaning from entering the device connected to the air inlet of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of centrifugal fan equipment, and more specifically, to a high-speed centrifugal fan. Background Art

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

[0003] After retrieval, the publication number (CN118242298A) discloses an anti-surge device for an ultra-high-speed centrifugal fan, which records that "it includes a filter component and a cleaning component installed inside a connection cover. The filter component is used to clean the filter net. The driving component is connected to the cleaning component and drives the cleaning component. A plurality of cleaning components are installed outside the filter component to dredge the inside of the filter component. Through the setting of the cleaning component and the filter component, during the rotation of the impeller, the outer sleeve is driven to rotate simultaneously. Dust is located between each helix of the spiral rod. The rotating shaft is used for the spiral rod to rotate. The housing, four small gears, and the driven gear mesh with each other to form a planetary gear set. When the turntable rotates, the spiral rod is rotated through the planetary gear set, and the dust between each helix is discharged. During the rotation of the outer sleeve, the turntable is driven to rotate simultaneously, and the cleaning brush on the turntable cleans the filter net to prevent the filter net from being blocked".

[0004] When using the above technology, it is found that the following technical problems exist in the prior art: When cleaning the air inlet filter net of the above device, the negative pressure of the centrifuge is likely 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] To solve the problems raised in the background art, the present invention provides a high-speed centrifugal fan, including a base. A driving motor is installed at the upper end of the base. The output end of the driving motor is fixedly connected to a connecting shaft. The end of the base is fixedly connected to a volute. A support frame is arranged inside the volute. A connecting block is fixedly connected to the middle of the support frame. The connecting block is fixedly connected to the connecting shaft. A plurality of fan blades are fixedly connected to the inside of the support frame. A filter net assembly and a cleaning assembly are arranged inside the support frame at the end away from the driving motor. A dual-channel assembly is arranged outside the volute. A moving assembly is arranged at the end of the volute away from the driving motor.

[0006] As a further improvement of this technical solution, the filter component includes a connecting ring, a connecting rod, and a filtering ring. A connecting ring is fixedly connected to the outer side of the connecting shaft. A plurality of connecting rods are fixedly connected to one end of the connecting ring close to the driving motor. A plurality of filtering rings are fixedly connected to the ends of the plurality of connecting rods away from the driving motor.

[0007] As a further improvement of this technical solution, the dual-channel component includes an equipment air inlet, a dust collection port, a limiting groove, a baffle, a serrated block, a rotating rod, and a gear column. An equipment air inlet and a dust collection port are fixedly connected to the outer side of the volute. The equipment air inlet is located above the dust collection port. A limiting groove is opened inside the volute. A baffle is slidably connected to the inside of the limiting groove. A serrated block is fixedly connected to the end of the baffle away from the volute. A rotating rod is rotatably connected to the inside of the volute. A gear column is fixedly connected to the outer side of the rotating rod. The gear column is meshed with the serrated block.

[0008] As a further improvement of this technical solution, the moving component includes a rotating ring, a first gear ring, a threaded rod, a first gear block, and a moving disk. A rotating ring is rotatably connected to one end of the volute away from the driving motor. A first gear ring is fixedly connected to the inside of the end of the rotating ring away from the volute. A plurality of threaded rods are rotatably connected to one end of the volute close to the rotating ring. A first gear block is fixedly connected to the end of the threaded rod close to the first gear ring. The first gear block is meshed with the threaded rod. A moving disk is threadedly connected between the plurality of threaded rods.

[0009] As a further improvement of this technical solution, the cleaning component includes a replacement frame, a socket ring, a brush, a threaded rotating rod, and a threaded groove. A socket ring is arranged on the outer side of the connecting shaft and at the end of the connecting ring away from the driving motor. A replacement frame is fixedly connected to the outer side of the socket ring. A plurality of brushes are fixedly connected to the inside of the replacement frame. A threaded groove is opened inside the end of the connecting shaft away from the driving motor. A threaded rotating rod is threadedly connected to the inside of the threaded groove. A clamping component is arranged between the replacement frame and the moving disk.

[0010] As a further improvement of this technical solution, the clamping component includes a spring, a clamping rod, and a clamping groove. A clamping rod is slidably clamped to the inside of the end of the replacement frame away from the socket ring. A spring is arranged inside the replacement frame. Two ends of the spring are respectively fixedly connected to the replacement frame and the clamping rod. A clamping groove is opened inside the moving disk. The clamping groove 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] Figure 9 It is a structural schematic diagram of the card slot of the present invention;

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

[0029] Figure 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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0033] Embodiment 1

[0034] As Figure 1 - Figure 11 shown, a high-speed centrifugal fan includes a base 101, a driving motor 102 is installed at 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 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 inside of the support frame 104. When the driving motor 102 is started, the connecting shaft 107 is driven to rotate by 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 inside the volute 103 through the connecting block 105, thereby discharging the gas between the fan blades 106 to the outer edge. A filter assembly and a cleaning assembly are arranged inside the end of the support frame 104 away from the driving motor 102, a dual-channel assembly is arranged outside the volute 103, and a moving assembly is arranged at the end of the volute 103 away from the driving motor 102.

[0035] In order to centrally collect the dust after cleaning the filter screen, the dual-channel component includes an equipment air inlet 301, a dust collection port 302, a limiting groove 303, a baffle 304, a serrated block 305, a rotating rod 306, and a gear column 307. The outside 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 above the dust collection port 302. A limiting groove 303 is opened inside the volute 103. A baffle 304 is slidably connected inside the limiting groove 303, and the baffle 304 slides inside the limiting groove 303. One end of the baffle 304 away from the volute 103 is fixedly connected with a serrated block 305. A rotating rod 306 is rotatably connected inside the volute 103. A gear column 307 is fixedly connected to the outside of the rotating rod 306. The gear column 307 is meshed with the serrated block 305. Rotate the rotating rod 306. Drive the gear column 307 to rotate through the rotating rod 306, and drive the baffle 304 to slide inside the limiting groove 303 through the meshing of the gear column 307 and the serrated block 305. Furthermore, when the filter screen component 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 inside of the dust collection port 302, thereby centrally transporting the cleaned dust to a designated collection point.

[0036] Both ends of the dust collection port 302 and the equipment air inlet 301 away from the volute 103 are fixedly connected with a clamping frame 701. An equipment connector 702 is arranged outside the dust collection port 302. A connection groove 703 is opened inside one end of the equipment connector 702 close to the clamping frame 701. The connection groove 703 is slidably clamped with the clamping frame 701. A first connection frame 704 is fixedly connected to the outside of the clamping frame 701. A second connection frame 705 is fixedly connected to the outside of one end of the equipment connector 702 close to the clamping frame 701. A plurality of screws 706 are arranged between the first connection frame 704 and the second connection frame 705. Put the connection groove 703 on the outside of the clamping frame 701 and rotate the screws 706 at any time, thereby connecting the first connection frame 704 and the second connection frame 705 together. Through the clamping frame 701 and the connection groove 703, the staff can assemble with the device more conveniently.

[0037] One end of the volute 103 close to the drive motor 102 is provided with a motor frame 801. A servo motor 804 is installed inside the motor frame 801. The output end of the servo motor 804 is fixedly connected with an output gear 802. One end of the rotating rod 306 close to the output gear 802 is fixedly connected with a second gear block 803. The output gear 802 is meshed with the second gear block 803. Start the servo motor 804. Drive the output gear 802 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 outside of the clamping frame 701, and then the screw 706 is rotated to connect the first connecting frame 704 and the second connecting frame 705 together. Through the clamping frame 701 and the connecting groove 703, it is more convenient for the staff to assemble with other devices. Before cleaning the filter component, the servo motor 804 is started. The output gear 802 is driven to rotate by the output end of the servo motor 804, and then the second gear block 803 is driven to rotate by the output gear 802, so that the second gear block 803 drives the rotating rod 306 to rotate. The rotating rod 306 drives the gear column 307 to rotate, and the gear column 307 meshes with the serrated block 305, so as to drive the baffle 304 to slide inside the limiting groove 303. Furthermore, before cleaning the filter component, the passage between the equipment air inlet 301 and the volute 103 is blocked by the baffle 304, and the passage between the dust collection port 302 and the volute 103 is opened, and then the filter component is cleaned. After the cleaning is completed, the drive motor 102 is started, so that the gas drives the dust into the dust collection port 302. 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 inside the volute 103 through the connecting block 105, so as to drive the gas and dust between the fan blades 106 to be discharged into the dust collection port 302. Through the dual-channel component, the dust after cleaning the filter is centrally transported to the designated collection point to avoid the dust after cleaning from entering the device connected to the equipment air inlet 301.

[0039] Embodiment 2

[0040] As Figure 1 - Figure 10 shown, the filter component includes a connecting ring 201, a connecting rod 202, and a filtering ring 203. A connecting ring 201 is fixedly connected to the outside of the connecting shaft 107. One end of the connecting ring 201 close to the drive motor 102 is fixedly connected with a plurality of connecting rods 202. The dust is filtered through the gaps between the plurality of connecting rods 202. One end of the plurality of connecting rods 202 away from the drive motor 102 is fixedly connected with a plurality of filtering rings 203.

[0041] A second gear ring 901 is fixedly connected to the outside of the rotating ring 401 at the end away from the first gear ring 402. A third gear block 902 is fixedly connected to one end of the rotating rod 306 close to the second gear ring 901. The second gear ring 901 is meshed and connected 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 component includes a rotating ring 401, a first gear ring 402, a threaded rod 403, a first gear block 404, and a moving disk 405. One end of the volute 103 away from the drive 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. One end of the volute 103 close to the rotating ring 401 is rotatably connected to a plurality of threaded rods 403. One 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 meshed and connected with the threaded rod 403. A moving disk 405 is threadedly connected between the plurality of 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 the plurality of threaded rods 403, the moving disk 405 is moved closer to or away from the volute 103, so that the cleaning component is driven by the moving disk 405 to approach or move away from the filter screen.

[0043] During operation, when the connecting shaft 107 rotates, a plurality of filter rings 203 are driven to rotate through the connecting ring 201 and the connecting rod 202. While the rotating rod 306 rotates to drive the double-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 meshing 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 the plurality of threaded rods 403, the moving disk 405 is moved closer to or away from the volute 103, so that the cleaning component is driven by the moving disk 405 to approach or move away from the filter screen. When the air inlet 301 of the device is communicated with the volute 103, the filter screen component is not cleaned, thereby preventing the device from continuously cleaning the filter screen component, so that the dust generated by the cleaning is prevented from entering the device connected to the air inlet 301 of the device.

[0044] Embodiment 3

[0045] As Figure 7 - Figure 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 text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0050] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. 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: It includes a base (101), a drive motor (102) is installed at the upper end of the base (101), a connecting shaft (107) is fixedly connected to the output end of the drive 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), multiple groups of fan blades (106) are fixedly connected to the inside of the support frame (104), a filter component and a cleaning component are arranged inside the support frame (104) at the end far from the drive motor (102), a double-channel component is arranged outside the volute (103), and a moving component is arranged at the end of the volute (103) far from the drive motor (102). The filter component includes a connecting ring (201), a connecting rod (202), and a filter ring (203). A connecting ring (201) is fixedly connected to the outside of the connecting shaft (107), multiple groups of connecting rods (202) are fixedly connected to one end of the connecting ring (201) close to the drive motor (102), and multiple groups of filter rings (203) are fixedly connected to the ends of the multiple groups of connecting rods (202) far from the drive motor (102). The double-channel component includes an equipment air inlet (301), a dust collection port (302), a limiting groove (303), a baffle (304), a serrated block (305), a rotating rod (306), and a gear column (307). An equipment air inlet (301) and a dust collection port (302) are fixedly connected to the outside of the volute (103), the equipment air inlet (301) is located above the dust collection port (302), a limiting groove (303) is opened inside the volute (103), a baffle (304) is slidably connected to the inside of the limiting groove (303), a serrated block (305) is fixedly connected to the end of the baffle (304) far from the volute (103), a rotating rod (306) is rotatably connected to the inside of the volute (103), a gear column (307) is fixedly connected to the outside of the rotating rod (306), and the gear column (307) is meshed with the serrated block (305).

2. The high-speed centrifugal fan according to claim 1, characterized in that: The moving component includes a rotating ring (401), a first gear ring (402), a threaded rod (403), a first gear block (404), and a moving disk (405). A rotating ring (401) is rotatably connected to the end of the volute (103) far from the drive motor (102), a first gear ring (402) is fixedly connected to the inside of the end of the rotating ring (401) far from the volute (103), multiple groups of threaded rods (403) are rotatably connected to the end of the volute (103) close to the rotating ring (401), a first gear block (404) is fixedly connected to the end of the threaded rod (403) close to the first gear ring (402), the first gear block (404) is meshed with the threaded rod (403), and a moving disk (405) is threadedly connected between the multiple groups of threaded rods (403).

3. The high-speed centrifugal fan according to claim 2, characterized in that: The cleaning component includes a replacement frame (501), a socket ring (502), a brush (503), a threaded rotating rod (504), and a threaded groove (505). A socket ring (502) is arranged on the outer side of the connecting shaft (107) and at the end of the connecting ring (201) away from the driving motor (102). A replacement frame (501) is fixedly connected to the outer side of the socket ring (502). Multiple brushes (503) are fixedly connected to the inner side of the replacement frame (501). A threaded groove (505) is formed in 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). A clamping component is arranged between the replacement frame (501) and the moving disk (405).

4. The high-speed centrifugal fan according to claim 3, wherein: The clamping component includes a spring (601), a clamping rod (602), and a clamping groove (603). A clamping rod (602) is slidably clamped to the inner side of the end of the replacement frame (501) away from the socket ring (502). A spring (601) is arranged on the inner side of the replacement frame (501). The two ends of the spring (601) are respectively fixedly connected to the replacement frame (501) and the clamping rod (602). A clamping groove (603) is formed in the inner side of the moving disk (405). The clamping groove (603) is slidably clamped to the clamping rod (602).

5. The high-speed centrifugal fan according to claim 1, wherein: Clamping frames (701) are fixedly connected to both the dust collection port (302) and the end of the equipment air inlet (301) away from the volute (103). An equipment connector (702) is arranged on the outer side of the dust collection port (302). A connection groove (703) is formed in the inner side of the end of the equipment connector (702) close to the clamping frame (701). The connection groove (703) is slidably clamped to the clamping frame (701). A first connection frame (704) is fixedly connected to the outer side of the clamping frame (701). A second connection frame (705) is fixedly connected to the outer side of the end of the equipment connector (702) close to the clamping frame (701). Multiple screws (706) are arranged between the first connection frame (704) and the second connection frame (705).

6. The high-speed centrifugal fan according to claim 5, wherein: A motor frame (801) is arranged at the end of the volute (103) close to the driving motor (102). A servo motor (804) is installed on the inner side of the motor frame (801). An output gear (802) is fixedly connected to the output end of the servo motor (804). A second gear block (803) is fixedly connected to the end of the rotating rod (306) close to the output gear (802). The output gear (802) is meshed with the second gear block (803).

7. The high-speed centrifugal fan according to claim 2, characterized in that: A second gear ring (901) is fixedly connected to the outer side of the end of the rotating ring (401) away from the first gear ring (402). A 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).

8. The high-speed centrifugal fan according to claim 4, characterized in that: A shifting groove (951) is formed in the inner side of the replacement rack (501). A shifting block (952) is fixedly connected to the outer side of the clamping rod (602) and located inside the shifting groove (951). The shifting block (952) is slidably connected to the shifting groove (951).

Images