CN115467854A - Low-noise axial flow fan impeller with noise reduction function - Google Patents
Low-noise axial flow fan impeller with noise reduction function Download PDFInfo
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- CN115467854A CN115467854A CN202211123032.1A CN202211123032A CN115467854A CN 115467854 A CN115467854 A CN 115467854A CN 202211123032 A CN202211123032 A CN 202211123032A CN 115467854 A CN115467854 A CN 115467854A
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- impeller
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- outside
- pipe
- axial flow
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- 230000009467 reduction Effects 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 229920000742 Cotton Polymers 0.000 claims abstract description 6
- 230000009471 action Effects 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 9
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000030279 gene silencing Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 16
- 230000008569 process Effects 0.000 description 11
- 210000001503 joint Anatomy 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a low-noise axial flow fan impeller with noise reduction and silencing functions, and relates to the technical field of axial flow fans. This low noise axial fan impeller with function of making an uproar falls in amortization, cooperation through flexible pipe and spacing spring and soundproof cotton and ball is used, make this low noise axial fan impeller with function of making an uproar falls in the amortization assembled the pipe of sheltering from in the outside of impeller seat, the impeller seat assembles behind the outside of drive shaft, flexible pipe covers the outside at the drive shaft with sheltering from the pipe under the effect of spacing spring elasticity, shelter from the part of rubbing between actuating mechanism and the drive shaft, the cooperation shelters from the mounting groove in the pipe and realizes making an uproar falls to the friction position of drive shaft, shelter from the outside ball of pipe and the laminating each other of actuating mechanism's outside simultaneously, roll at the in-process that shelters from the pipe rotation.
Description
Technical Field
The invention relates to the technical field of axial flow fans, in particular to a low-noise axial flow fan impeller with noise reduction and reduction functions.
Background
The axial flow fan has a very wide application, namely, the axial flow fan is an axial flow type running fan which is an electric fan and an air conditioner outer fan, wherein the axial flow fan is an axial flow type running fan, the axial flow fan is called as an axial flow type, because air flows parallel to the fan shaft, the axial flow fan is usually used in occasions with higher flow requirements and lower pressure requirements, the axial flow fan is fixed in position and enables the air to move, the axial flow fan mainly comprises a fan impeller and a casing, the structure is simple, but the data requirements are very high, the common axial flow fan can be used for ventilation in places such as general factories, warehouses, offices and houses, and can also be used for air coolers (air coolers), evaporators, condensers, spray coolers, and the like, and the mine axial flow fan also has the anticorrosion and explosion-proof type axial flow fan which adopts anticorrosion materials and explosion-proof measures and is matched with an explosion-proof motor and can be used for conveying gases which are easy to explode, volatile and have corrosivity.
The axial flow fan is in the process of working, mainly depends on a driving device inside the axial flow fan, and drives a fan impeller to rotate rapidly, so as to generate wind beams, but the impeller of the existing axial flow fan still has certain defects in the actual use process, firstly, the noise is the problem inevitably appearing in the working process of the axial flow fan, friction can be generated in the rotating process of a driving shaft of the axial flow fan, and the noise is generated under the action of the friction, the noise reduction mode of the noise can be realized by adding lubricating oil, the friction outside the driving shaft of the axial flow fan is reduced, the noise reduction is realized, but the consumption speed of the lubricating oil is higher, and frequent addition is needed, so the noise reduction effect is still limited, secondly, the impeller of the existing axial flow fan is of an integrated structure, the whole impeller is sleeved outside the driving shaft, after a single blade is damaged, the whole impeller is required to be detached and replaced, and the waste of resources is caused, and therefore, a low-noise axial flow fan impeller with the functions of noise reduction is designed to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a low-noise axial flow fan impeller with the functions of noise reduction and noise reduction, which solves the problems in the background technology.
In order to realize the purpose, the invention is realized by the following technical scheme: the utility model provides a low noise axial fan impeller with function of making an uproar falls in amortization, includes impeller seat and blade, the outside of impeller seat cup joints the screw thread cover of being connected fixedly between auxiliary impeller seat and the drive shaft, and the middle part of impeller seat sets up and drive shaft assorted socket joint, the outside cover of blade is equipped with the mount pad, blade and mount pad evenly distributed are in the outside of impeller seat, the one end activity cover of impeller seat is equipped with flexible pipe, the outside fixed mounting of flexible pipe has the pipe of sheltering from, the soundproof cotton that can carry out syllable-dividing has been cup jointed in the pipe of sheltering from, the outside of impeller seat sets up the mounting groove that matches with the mount pad, connect fixedly through connecting bolt between mount pad and the impeller seat, seted up in the mounting groove and connecting bolt assorted screw, the inboard of screw thread cover and the outside of drive shaft set offer the screw thread that matches each other, the outside of impeller seat sets up with the terminal mating groove of screw cover, when screw cover and the terminal screw thread connection of drive shaft, the terminal embedding of screw thread cover is in the outside of impeller seat and is fixed the extrusion, the inboard of impeller seat is seted up and is located the both sides of cup jointing of impeller seat, the outside drive shaft matched with the outside drive shaft drive clamping groove, the clamping block, the rotary clamping block is equipped with the drive shaft, the outside drive shaft is carried out the rotary clamping block in the rotary motion of the impeller seat, the rotary motion of the impeller seat.
Furthermore, a movable groove matched with the telescopic pipe is formed in the impeller seat, the limit springs which are uniformly distributed are fixedly connected between the impeller seat and the telescopic pipe, the telescopic pipe can move in the movable groove on the inner side of the impeller seat, and then the position of the shielding pipe outside the impeller seat is adjusted.
Furthermore, two sets of limiting blocks are fixedly sleeved outside the telescopic pipe, limiting grooves matched with the limiting blocks are formed in the movable grooves, and the limiting blocks can limit the positions of the telescopic pipe in the movable grooves.
Furthermore, the outer part of the shielding pipe is movably sleeved with uniformly distributed balls, and after the impeller seat is assembled, the balls outside the shielding pipe are attached to the outer part of the driving mechanism and roll in the rotating process of the shielding pipe.
Furthermore, the both sides movable sleeve of mount pad is equipped with the fixed block, the fixed slot with fixed block assorted is seted up to the inboard of mounting groove, and the mounting groove is used for assisting the mount pad in the outside fixed of impeller seat, passes through connecting bolt between mount pad and the impeller seat to carry out supplementary fixed through the butt joint of fixed block and fixed slot.
Furthermore, a telescopic cavity matched with the fixing block is formed in the mounting seat, a reset spring is fixedly connected between the mounting seat and the fixing block, the fixing block is embedded into the telescopic cavity under the action of the elastic force of the reset spring, and when the connecting bolt is taken down from the outside of the mounting seat, the fixing block is reset under the action of the elastic force of the reset spring and enters the telescopic cavity.
Further, the outside fixed mounting of fixed block has the contact piece that is located between two sets of reset spring, the outside of contact piece seted up with connecting bolt assorted arc curved surface, during the swivelling joint bolt, but connecting bolt's bottom extrusion contact piece makes then the contact piece push the fixed block under the effect of arc curved surface and imbeds in the inboard fixed slot of mounting groove.
Further, blade, mount pad, connecting bolt, fixed block all adopt the metal to make, connecting bolt runs through the inside of mount pad, and blade, mount pad, connecting bolt, fixed block adopt the metal to make the stability of guaranteeing self structure, and connecting bolt runs through the inside of fixed block and easily realizes fixing the mount pad.
The invention provides a low-noise axial flow fan impeller with noise reduction function, which has the following beneficial effects:
1. this low noise axial fan impeller with function of making an uproar falls in amortization, cooperation through flexible pipe and spacing spring and soundproof cotton and ball is used, make this low noise axial fan impeller with function of making an uproar falls in the outside of impeller seat assembled sheltering from the pipe, the impeller seat assembles behind the outside of drive shaft, flexible pipe covers the outside at the drive shaft with sheltering from the pipe under the effect of spacing spring elasticity, shelter from the part of rubbing between actuating mechanism and the drive shaft, the cooperation shelters from the mounting groove in the pipe and realizes making an uproar falls to the friction position of drive shaft, shelter from outside ball of pipe and the laminating each other of actuating mechanism's outside simultaneously, at the in-process that shelters from the rotation of pipe roll, avoid sheltering from taking place the friction and producing the noise between the outside of pipe and actuating mechanism.
2. This low noise axial fan impeller with function of making an uproar falls in amortization, cooperation through mount pad and blade and connecting bolt and mounting groove is used, make this low noise axial fan impeller with function of making an uproar falls in the amortization assemble alone on the mount pad, the mount pad cup joints in the mounting groove that the impeller seat outside was seted up, and realize the fastening through connecting bolt, when single blade takes place to damage, the staff can dismantle single blade and mount pad, and change, thereby make this low noise axial fan impeller with function of making an uproar falls in the amortization need not wholly to change after single blade takes place to damage, the waste of resource has been reduced.
3. This low noise axial fan impeller with function of making an uproar falls in amortization, cooperation through connecting bolt and fixed block and reset spring and contact piece is used, make this low noise axial fan impeller with function of making an uproar falls in the noise reduction install the fixed in-process to the mount pad through connecting bolt, but connecting bolt's bottom extrusion contact piece, then make contact piece promote in the inboard fixed slot of fixed block embedding mounting groove, and tensile reset spring, thereby make blade and mount pad accomplish the stability after fixing through connecting bolt stronger, and when dismantling, when taking off connecting bolt, the fixed block resets under the effect of reset spring elasticity, remove the spacing fixed to the mount pad, make this low noise axial fan impeller with function of making an uproar falls the blade of function and the dismouting easy operation of mount pad convenient.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the assembled exterior of the present invention;
FIG. 3 is a schematic view of the internal structure of the impeller seat of the present invention;
FIG. 4 is a schematic view of the inside of the shielding tube according to the present invention;
FIG. 5 is a schematic view of the structure between the impeller seat and the vane of the present invention;
FIG. 6 is a schematic view of the interior of the mounting base of the present invention;
fig. 7 is a schematic structural view of the connecting bolt and the fixing block of the present invention.
In the figure: 1. an impeller seat; 2. a butt joint groove; 3. a threaded sleeve; 4. a blade; 5. a socket; 6. a mounting base; 7. a connecting bolt; 8. a movable groove; 9. a card slot; 10. a ball bearing; 11. a shield pipe; 12. a telescopic pipe; 13. a limiting spring; 14. a limiting block; 15. sound insulation cotton; 16. mounting grooves; 17. connecting screw holes; 18. a fixing groove; 19. a limiting groove; 20. a fixed block; 21. a return spring; 22. and a contact block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a low noise axial fan impeller with function of making an uproar falls in amortization, including impeller seat 1 and blade 4, the outside of impeller seat 1 has cup jointed auxiliary impeller seat 1 and is connected fixed thread bush 3 between the drive shaft, the screw thread that matches each other is seted up to the inboard of thread bush 3 and the outside of drive shaft, when being connected fixedly between actuating mechanism's drive shaft and the impeller seat 1, the end of drive shaft stretches out from the outside of impeller seat 1, impeller seat 1 outside offer with 3 terminal assorted butt joint grooves 2 of thread bush, later with the terminal threaded connection of thread bush 3 with the drive shaft, the terminal embedding of thread bush 3 this moment in 1 outside the socket 5 of impeller seat, and extrude fixedly impeller seat 1, and the middle part of impeller seat 1 is seted up with drive shaft assorted socket 5.
Draw-in groove 9 that is located 5 both sides of socket joint is seted up to the inboard of impeller seat 1, impeller seat 1 docks the back with the drive shaft, the outside fixture block joint of drive shaft is in draw-in groove 9 of impeller seat 1 inboard, the outside of actuating mechanism's drive shaft is equipped with draw-in groove 9 assorted fixture block, guarantee that the rotatory in-process of drive shaft can drive impeller seat 1 wholly and rotate, the outside cover of blade 4 is equipped with mount pad 6, blade 4 and 6 evenly distributed of mount pad are in the outside of impeller seat 1, the one end movable sleeve of impeller seat 1 is equipped with flexible pipe 12, the outside fixed mounting of flexible pipe 12 has shelters from pipe 11, it has connect to carry out syllable-dividing soundproof cotton 15 in 11 to shelter from the cover.
A movable groove 8 matched with a telescopic pipe 12 is formed in an impeller seat 1, the telescopic pipe 12 can move in the movable groove 8 on the inner side of the impeller seat 1, the position of a shielding pipe 11 outside the impeller seat 1 is adjusted, a uniformly distributed limiting spring 13 is fixedly connected between the impeller seat 1 and the telescopic pipe 12, the limiting spring 13 can be enabled to extrude the shielding pipe 11 and the telescopic pipe 12, the shielding pipe 11 is enabled to cover the joint of a driving shaft and a driving mechanism, the sound insulation and noise reduction effects are ensured, two groups of limiting blocks 14 are fixedly sleeved on the outer side of the telescopic pipe 12, and the limiting blocks 14 can limit the position of the telescopic pipe 12 in the movable groove 8.
Have seted up in activity groove 8 with stopper 14 assorted spacing groove 19, when cooperation spacing groove 19 guarantees that stopper 14 and flexible pipe 12 can move about, avoid flexible pipe 12 to break away from the inboard of activity groove 8 completely, the outside movable sleeve that shelters from pipe 11 is equipped with evenly distributed's ball 10, impeller seat 1 accomplishes the assembly back, shelters from outside ball 10 of pipe 11 and actuating mechanism's outside and laminates each other, shelters from the rotatory in-process roll of pipe 11, avoid sheltering from and take place the friction and produce the noise between pipe 11 and actuating mechanism's the outside.
Referring to fig. 3 to 6, an installation groove 16 matched with the installation seat 6 is formed in the outer portion of the impeller seat 1, the installation seat 6 and the impeller seat 1 are connected and fixed through a connection bolt 7, fixing blocks 20 are movably sleeved on two sides of the installation seat 6, the installation groove 16 is used for assisting the installation seat 6 in fixing the outer portion of the impeller seat 1, a fixing groove 18 matched with the fixing block 20 is formed in the inner side of the installation groove 16, the installation seat 6 is connected with the impeller seat 1 through the connection bolt 7, and auxiliary fixing is performed through butt joint of the fixing block 20 and the fixing groove 18.
The mounting groove 16 is provided with a connecting screw hole 17 matched with the connecting bolt 7, the mounting seat 6 is provided with a telescopic cavity matched with the fixing block 20, the mounting seat 6 and the fixing block 20 are fixedly connected with a return spring 21, the fixing block 20 is embedded into the telescopic cavity under the action of the elastic force of the return spring 21, the connecting bolt 7 is taken down from the outside of the mounting seat 6, the fixing block 20 is reset under the action of the elastic force of the return spring 21 to enter the telescopic cavity, the limiting fixation of the mounting seat 6 is removed, and the mounting seat 6 is convenient to detach.
Referring to fig. 6 to 7, a contact block 22 located between two sets of return springs 21 is fixedly mounted on the outside of the fixing block 20, when the connecting bolt 7 is rotated, the bottom end of the connecting bolt 7 can press the contact block 22, so that the contact block 22 pushes the fixing block 20 to be embedded into the fixing groove 18 on the inner side of the mounting groove 16 under the action of the arc-shaped curved surface, and the arc-shaped curved surface matched with the connecting bolt 7 is formed on the outside of the contact block 22, so that the blade 4 and the mounting base 6 are more stable after being fixed by the connecting bolt 7.
In conclusion, when the low-noise axial flow fan impeller with the noise reduction function is used, the impeller seat 1 is sleeved outside the driving shaft of the driving mechanism through the sleeve joint 5, the outside of the driving shaft is clamped with the clamping groove 9 in the impeller seat 1, the tail end of the driving shaft extends out of the impeller seat 1, the tail end of the driving shaft is connected through the threaded sleeve 3, the tail end of the threaded sleeve 3 is embedded into the sleeve joint 5 outside the impeller seat 1 and extrudes and fixes the impeller seat 1, meanwhile, the extension tube 12 and the shielding tube 11 cover the outside of the driving shaft under the action of the elastic force of the limiting spring 13, the friction part between the driving mechanism and the driving shaft is shielded and reduced in noise, the noise generated in the rotating process of the driving shaft is reduced, the ball 10 outside the shielding tube 11 is mutually attached to the outside of the driving mechanism and rolls in the rotating process of the shielding tube 11, the noise caused by friction between the shielding pipe 11 and the outside of the driving mechanism is avoided, the blades 4 are independently assembled on the installation seat 6, the installation seat 6 is sleeved in the installation groove 16 arranged on the outside of the impeller seat 1 and is fastened through the connecting bolt 7, when the single blade 4 is damaged, the single blade 4 and the installation seat 6 can be disassembled and replaced, in the process of installing and fixing the installation seat 6 through the connecting bolt 7, when the connecting bolt 7 is rotated, the bottom end of the connecting bolt 7 can extrude the contact block 22, then the contact block 22 pushes the fixing block 20 to be embedded into the fixing groove 18 on the inner side of the installation groove 16, the reset spring 21 is stretched, the stability of the blade 4 and the installation seat 6 after the fixing is completed through the connecting bolt 7 is stronger, when the installation seat 6 is disassembled, the connecting bolt 7 is taken down, and the fixing block 20 is reset under the elastic force of the reset spring 21, the limiting fixation of the mounting seat 6 is removed, the blade 4 is directly pulled to drive the mounting seat 6 to withdraw from the mounting groove 16, and the work of the whole low-noise axial flow fan impeller with the functions of noise reduction and the process of assembling and disassembling the blade 4 are completed.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a low noise axial fan impeller with function of making an uproar falls in amortization, includes impeller seat (1) and blade (4), the outside of impeller seat (1) has cup jointed auxiliary impeller seat (1) and is connected fixed thread bush (3) between the drive shaft, and the middle part of impeller seat (1) seted up with drive shaft assorted socket (5), the outside cover of blade (4) is equipped with mount pad (6), blade (4) and mount pad (6) evenly distributed are in the outside of impeller seat (1), its characterized in that: the utility model discloses a turbine impeller structure, including impeller seat (1), one end movable sleeve of impeller seat (1) is equipped with flexible pipe (12), the outside fixed mounting of flexible pipe (12) has sheltered from pipe (11), it has soundproof cotton (15) that can carry out syllable-dividing to cover to connect in the pipe (11), the outside of impeller seat (1) is seted up and is installed seat (6) assorted mounting groove (16), be connected fixedly through connecting bolt (7) between mount pad (6) and impeller seat (1), seted up in mounting groove (16) and connecting bolt (7) assorted connecting screw (17), the screw thread that matches each other is seted up to the inboard of thread bush (3) and the outside of drive shaft, impeller seat (1) outside is seted up and is connected groove (2) with the terminal assorted of thread bush (3), draw-in groove (9) that are located socket (5) both sides are seted up to the inboard of impeller seat (1), and the outside of drive mechanism's drive shaft is equipped with draw-in groove (9) assorted fixture block.
2. The low-noise axial flow fan impeller with noise reduction function according to claim 1, wherein: a movable groove (8) matched with the telescopic pipe (12) is arranged in the impeller seat (1), and limit springs (13) which are uniformly distributed are fixedly connected between the impeller seat (1) and the telescopic pipe (12).
3. The low-noise axial flow fan impeller with noise reduction function according to claim 2, wherein: two groups of limiting blocks (14) are fixedly sleeved on the outer side of the telescopic pipe (12), and limiting grooves (19) matched with the limiting blocks (14) are formed in the movable grooves (8).
4. The low-noise axial flow fan impeller with noise reduction function according to claim 1, wherein: the shielding pipe (11) is movably sleeved with balls (10) which are uniformly distributed.
5. The impeller of axial flow fan with noise reduction function of claim 1, wherein: fixed blocks (20) are movably sleeved on two sides of the mounting seat (6), and fixed grooves (18) matched with the fixed blocks (20) are formed in the inner sides of the mounting grooves (16).
6. The impeller of axial flow fan with noise reduction function of claim 5, wherein: the mounting seat is characterized in that a telescopic cavity matched with the fixing block (20) is formed in the mounting seat (6), a reset spring (21) is fixedly connected between the mounting seat (6) and the fixing block (20), and the fixing block (20) is embedded into the telescopic cavity under the action of the elastic force of the reset spring (21).
7. The low-noise axial flow fan impeller with noise reduction function according to claim 6, wherein: the outer fixed mounting of fixed block (20) has contact piece (22) that are located between two sets of reset spring (21), contact piece (22) outside seted up with connecting bolt (7) assorted arc curved surface.
8. The low-noise axial flow fan impeller with noise reduction function according to claim 5, wherein: the blade (4), the mounting seat (6), the connecting bolt (7) and the fixing block (20) are all made of metal, and the connecting bolt (7) penetrates through the inside of the mounting seat (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211123032.1A CN115467854A (en) | 2022-09-15 | 2022-09-15 | Low-noise axial flow fan impeller with noise reduction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211123032.1A CN115467854A (en) | 2022-09-15 | 2022-09-15 | Low-noise axial flow fan impeller with noise reduction function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115467854A true CN115467854A (en) | 2022-12-13 |
Family
ID=84333539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211123032.1A Withdrawn CN115467854A (en) | 2022-09-15 | 2022-09-15 | Low-noise axial flow fan impeller with noise reduction function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115467854A (en) |
-
2022
- 2022-09-15 CN CN202211123032.1A patent/CN115467854A/en not_active Withdrawn
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20221213 |
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| WW01 | Invention patent application withdrawn after publication |