CN112503023A - Axial flow fan impeller - Google Patents
Axial flow fan impeller Download PDFInfo
- Publication number
- CN112503023A CN112503023A CN202011345995.7A CN202011345995A CN112503023A CN 112503023 A CN112503023 A CN 112503023A CN 202011345995 A CN202011345995 A CN 202011345995A CN 112503023 A CN112503023 A CN 112503023A
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- China
- Prior art keywords
- fastening
- wheel disc
- blade
- pad
- fan impeller
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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
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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
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
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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
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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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/64—Mounting; Assembling; Disassembling of axial pumps
- F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
- F04D29/646—Mounting or removal of fans
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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 an axial flow fan impeller which comprises a wheel disc, wherein a circle of blades are installed on the periphery of the wheel disc, a fixed screw hole is installed at the lower end of each blade close to the middle part of the blade, fastening pad discs are installed at the front end and the rear end of the wheel disc close to the middle parts, fastening screw tails are installed at the middle parts of the fastening pad discs at the rear ends, fastening screw heads are installed at the middle parts of the fastening pad discs at the front ends, pad rings are installed between the fastening screw tails and the contact surfaces of the fastening pad discs and between the fastening screw heads and the contact surfaces of the fastening pad discs, a plurality of fastening columns are installed at one side of each fastening pad disc, fastening holes corresponding to the fastening columns are installed at the front ends and the rear ends of the wheel disc in a penetrating manner, and a circle of fastening grooves are formed in the front end and the; the invention can adjust the number and the spacing of the blades according to requirements, improves the efficiency, and can replace a single part without replacing the whole fan impeller after the part of the fan impeller is damaged.
Description
Technical Field
The invention relates to the field of fans, in particular to an axial flow fan impeller.
Background
The fan is a machine which can improve the gas pressure and discharge the gas by means of the input mechanical energy, and is a driven fluid machine, the classification of the fan is various, the fans of different classifications are provided with different fan impellers, the axial flow fan is a fan which operates in an axial flow mode, the airflow and the axis of the fan blade are in the same direction, and the provided impeller is a high-efficiency axial flow fan impeller.
In the process of implementing the invention, the inventor finds that at least the following problems in the prior art are not solved: 1. the number of blades of the existing high-efficiency axial flow fan impeller is fixed, so that the number of the blades cannot be adjusted according to requirements, and the efficiency is improved; 2. the components of the existing high-efficiency axial flow fan impeller are integrated and can not be disassembled, and if one component is damaged, the whole fan impeller must be replaced; 3. when axial fan need disassemble maintenance or maintenance, because the edge of impeller is sharper, the staff is scratched easily to the blade, especially large-scale axial fan, and the staff is scratched more easily to the great blade of use.
To this end, an axial fan wheel is proposed.
Disclosure of Invention
The invention aims to provide an axial flow fan impeller, which can adjust the number and the spacing of blades according to requirements, improve the efficiency, and can replace a single part without replacing the whole fan impeller after the part of the fan impeller is damaged, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: an axial flow fan impeller comprises a wheel disc, a circle of blades are arranged on the periphery of the wheel disc, a fixing screw hole is arranged at the lower end of each blade close to the middle part, the middle parts of the front and rear ends of the wheel disc are respectively provided with a fastening pad disc, the middle part of the fastening pad disc positioned at the rear end is provided with a fastening screw tail, the middle part of the fastening screw tail is provided with a through hole, the middle part of the fastening pad disc positioned at the front end is provided with a fastening screw head, auxiliary grooves are respectively arranged in the middle parts of the fastening screw head and the fastening screw tail, backing rings are respectively arranged between the contact surfaces of the fastening screw tail and the fastening backing plate and between the contact surfaces of the fastening screw head and the fastening backing plate, a plurality of fastening columns are arranged on one side of the fastening pad disc, fastening holes corresponding to the fastening columns are arranged on the front end and the rear end of the wheel disc in a penetrating way, threaded holes are arranged in the middle of the wheel disc in a penetrating way, a circle of fastening grooves are formed in the front end and the rear end of the wheel disc, and connecting pieces are arranged between the fixing screw holes and the fastening grooves;
the anti-scraping device also comprises an anti-scraping unit; the scratch-proof unit is used for preventing the blades from scratching workers during maintenance.
Preferably, the scratch-resistant unit comprises a hollow nylon layer, and the hollow nylon layer is fixed with the edge of the blade; magnetorheological fluid is filled in the hollow nylon layer, and one end of the hollow nylon layer, which is far away from the blade, is sharp; the inside of blade is filled with the electro-magnet, and the mobility of magneto-rheological fluid is changed to the electro-magnet circular telegram.
Preferably, the number of the blades, the fastening grooves, the fastening holes and the connecting pieces is equal, and the connecting pieces are engaged with the fixing screw holes.
Preferably, the surface of the blade close to the fixed screw hole is an arc surface corresponding to the periphery of the wheel disc, and the blades are distributed at equal intervals on the periphery of the wheel disc.
Preferably, the sum of the thicknesses of the fastening screw head and the fastening screw tail is equal to the thickness of the wheel disc, and the fastening screw head and the fastening screw tail are meshed with the middle part of the wheel disc.
Preferably, the thickness of the fastening pad disc is equal to one sixth of the thickness of the wheel disc, and the wheel disc is movably connected with the fastening pad disc.
Preferably, the fastening holes and the fastening grooves correspond to each other in position, and the corresponding fastening holes and the corresponding fastening grooves are perpendicular to each other and are communicated with each other.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the axial flow fan impeller, due to the fact that the electromagnet is matched with the magnetorheological fluid, workers can be prevented from being scratched when the axial flow fan needs to be disassembled, maintained or maintained, normal work of the axial flow fan can be guaranteed, and working efficiency of the axial flow fan is not affected.
2. The invention relates to an axial flow fan impeller, which is characterized in that a blade is fixedly connected with a connecting piece by utilizing the meshing connection of a fixing screw hole and the connecting piece, then a fastening column at one side of a fastening pad disc at the front end of a wheel disc is inserted into a corresponding fastening hole, one of pad rings is sleeved on a fastening screw head, the fastening screw head penetrates through the fastening pad disc to be meshed with a threaded hole, the fastening screw head is rotated through an auxiliary groove on the fastening screw head by means of a tool to be tightened, the wheel disc which is half assembled is turned over, the assembled blade with the connecting piece is inserted into the fastening groove, the fastening pad disc, the pad ring and the fastening screw tail at the rear end of the wheel disc are installed by the method of installing the fastening pad disc, the pad ring and the fastening screw head at the front end of the wheel disc, and finally the fastening screw head and the fastening screw tail are tightened by means of the tool through the auxiliary groove, the fastening column at the front end and the rear, the number of the blades and the connecting pieces and the installation distance between two adjacent groups of blades and connecting pieces can be selected according to actual requirements when the blades are installed, so that the efficiency is improved;
3. when the axial flow fan impeller is used, the assembled fan impeller is connected and fixed with a fan rotating shaft through a through hole formed in the middle of the fastening screw tail, the motor on the fan drives the rotating shaft to rotate, the assembled fan impeller rotates along with the rotating shaft, the blades drive airflow to flow axially, if the fan impeller is damaged in the use process, the fan impeller can be detached from the rotating shaft of the fan, a tool is used for detaching the installed fan impeller by rotating the fastening screw head and the fastening screw tail through the auxiliary groove, the damaged part is replaced and then the fan impeller is assembled, and the whole fan impeller does not need to be replaced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partially disassembled view of the present invention;
FIG. 3 is a schematic view of the blade and the connector of the present invention;
FIG. 4 is a schematic view of the connection of the connecting member to the fastening post of the present invention;
fig. 5 is a cross-sectional view of a blade according to the present invention.
In the figure: the device comprises a wheel disc 1, blades 2, a fastening pad disc 3, an auxiliary groove 4, a fastening screw head 5, a fixing screw hole 6, a fastening screw tail 7, a through hole 8, a pad ring 9, a fastening column 10, a fastening groove 11, a fastening hole 12, a threaded hole 13, a connecting piece 14, a scratch-proof unit 15, a hollow nylon layer 151, magnetorheological fluid 152 and an electromagnet 153.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: an axial flow fan impeller is shown in fig. 1 to 4 and comprises a wheel disc 1, wherein a circle of blades 2 are installed on the periphery of the wheel disc 1, a fixing screw hole 6 is installed at the lower end of each blade 2 close to the middle, fastening pad discs 3 are installed at the front end and the rear end of the wheel disc 1 close to the middle, a fastening screw tail 7 is installed at the middle of the fastening pad disc 3 at the rear end, a through hole 8 is formed in the middle of the fastening screw tail 7, a fastening screw head 5 is installed at the middle of the fastening pad disc 3 at the front end, auxiliary grooves 4 are formed in the middle of the fastening screw head 5 and the fastening screw tail 7, backing rings 9 are installed between the fastening screw tail 7 and the contact surface of the fastening pad disc 3 and between the fastening screw head 5 and the contact surface of the fastening pad disc 3, a plurality of fastening columns 10 are installed on one side of the fastening pad disc 3, and fastening holes 12 corresponding to the fastening columns 10 are installed at the front end and, a threaded hole 13 is formed in the middle of the wheel disc 1 in a penetrating mode, a circle of fastening grooves 11 are formed in the front end and the rear end of the wheel disc 1 in a middle opening mode, and connecting pieces 14 are arranged between the fixing threaded holes 6 and the fastening grooves 11;
also includes a scratch prevention unit 15; the scratch-proof unit 15 is used for preventing the blade 2 from scratching workers during maintenance;
during the use, through-hole 8 that the fan wheel that will assemble was seted up through fastening spiral shell tail 7 middle part is connected fixedly with the fan pivot, when motor on the fan drove the pivot pivoted, the fan wheel that assembles rotates thereupon, blade 2 drives the air current axial flow, if the damage of fan wheel parts appears in the use, can dismantle fan wheel from the pivot of fan now, reuse instrument rotates fastening spiral shell head 5 and fastening spiral shell tail 7 through auxiliary tank 4 and disassembles the fan wheel who installs, assemble after changing the part that damages again, need not to change whole fan wheel, when the axial fan need disassemble maintenance or maintenance, prevent scraping unit 15 and can prevent that the staff from being by the fish tail of 2 marginal sharp departments of impeller.
As a specific embodiment of the present invention, the scratch prevention unit 15 includes a hollow nylon layer 151, the hollow nylon layer 151 is fixed to the edge of the blade 2, and one end of the hollow nylon layer 151 away from the blade 2 is sharp; magnetorheological fluid 152 is filled in the hollow nylon layer 151; the electromagnet 153 is filled in the blade 2, and the electromagnet 153 is electrified to change the fluidity of the magnetorheological fluid 152;
when the axial flow fan works, the electromagnet 153 can be electrified to form a magnetic field in the blade 2, so that the magnetorheological fluid 152 in the hollow nylon layer 151 has the characteristics of high viscosity and low fluidity, the hollow nylon layer 151 is tightly filled, and one end, far away from the blade 2, of the hollow nylon layer 151 is sharp, so that the hollow nylon layer 151 is prevented from influencing the rotating speed of the blade 2, and the working efficiency of the axial flow fan is reduced;
when the axial flow fan stops working, the electromagnet 153 is powered off, and the magnetorheological fluid 152 presents the property of low-viscosity Newtonian fluid, so that when the axial flow fan needs to be disassembled for maintenance or service, and the hollow nylon layer 151 is in contact with workers, although one end of the hollow nylon layer 151 far away from the blade 2 presents a sharp shape, the magnetorheological fluid 152 does not have a magnetic field and presents the property of low-viscosity Newtonian fluid, so that the sharp part of the hollow nylon layer 151 can be pressed down, and the workers can be prevented from being scratched;
for how the electromagnet 153 is electrified, a storage battery can be placed in the fastening pad 3, the storage battery is communicated with the electromagnet 153, the storage battery is controlled by a controller, and when the axial flow fan works, the storage battery is discharged by the controller to realize the electrification of the electromagnet 153;
as for the mode of filling the electromagnet 153 in the blade 2, when manufacturing the blade, a groove for accommodating the electromagnet 153 may be formed in two pieces of raw materials for manufacturing the blade 2, then the electromagnet 153 is put in, and finally the two pieces of raw materials for manufacturing the blade 2 are welded.
As one embodiment of the present invention, as shown in fig. 1 and 2, the number of the blades 2, the fastening grooves 11, the fastening holes 12, and the connectors 14 is equal, and the connectors 14 are engaged with the fastening screw holes 6.
When the fastening device works, after the connecting piece 14 is meshed with the fixing screw hole 6, the connecting piece 14 is inserted into the fastening groove 11, the fastening column 10 is inserted into the fastening hole 12, and the connecting piece 14 is clamped front and back by the fastening column 10 for fastening.
As a specific embodiment of the present invention, as shown in fig. 1 and 3, the surface of the blade 2 close to the fixing screw hole 6 is a cambered surface corresponding to the periphery of the wheel disc 1, and the blades 2 are equidistantly distributed on the periphery of the wheel disc 1.
When the blade 2 is in work, the surface of the blade 2, which is in contact with the periphery of the wheel disc 1, is set into a corresponding cambered surface, and the blade 2 is installed at a certain angle, so that the blade 2 is in seamless connection with the peripheral curved surface of the wheel disc 1.
As a specific embodiment of the present invention, as shown in fig. 2, the sum of the thicknesses of the fastening screw head 5 and the fastening screw tail 7 is equal to the thickness of the wheel disc 1, and the fastening screw head 5 and the fastening screw tail 7 are engaged with the middle portion of the wheel disc 1.
During operation, set up through-hole 8 in the middle part of fastening spiral shell tail 7, for the installation of later stage fan wheel provides the space, be convenient for to the dismantlement and the installation of fastening spiral shell head 5 and fastening spiral shell tail 7 in the auxiliary tank 4 that fastening spiral shell head 5 and fastening spiral shell tail 7 middle part were seted up.
As an embodiment of the present invention, as shown in fig. 2, the thickness of the fastening saucer 3 is equal to one sixth of the thickness of the wheel disc 1, and the wheel disc 1 is movably connected to the fastening saucer 3.
During operation, after the fastening screw head 5 and the fastening screw tail 7 are sleeved with the backing ring 9, the backing ring penetrates through the middle of the fastening backing plate 3, the fastening screw head 5 and the fastening screw tail 7 are connected with the threaded hole 13 in a meshed mode to be tightened, and the fastening backing plate 3 is fixed at the front end and the rear end of the wheel disc 1.
As an embodiment of the present invention, as shown in fig. 2, the positions of the fastening holes 12 and the fastening grooves 11 correspond to each other, and the corresponding fastening holes 12 and the fastening grooves 11 are perpendicular to each other and communicate with each other.
During operation, set up corresponding fastening slot 11 and fastening hole 12 on rim plate 1, utilize fastening post 10 and connecting piece 14's cooperation, conveniently to blade 2's dismantlement and installation, adjust blade 2's quantity and interval as required simultaneously.
The working principle is as follows: firstly, utilizing the meshing connection of a fixed screw hole 6 and a connecting piece 14 to establish the connection and fixation of a blade 2 and the connecting piece 14, then inserting a fastening column 10 at one side of a fastening pad 3 at the front end of a wheel disc 1 into a corresponding fastening hole 12, sleeving one pad ring 9 on the fastening screw head 5, then enabling the fastening screw head 5 to penetrate through the fastening pad 3 to be meshed with a threaded hole 13, tightening by means of a tool through rotating the fastening screw head 5 through an auxiliary groove 4 on the fastening screw head 5, turning over the half-assembled wheel disc 1, inserting the assembled blade 2 with the connecting piece 14 into a fastening groove 11, installing the fastening pad 3, the pad ring 9 and the fastening screw head 5 at the rear end of the wheel disc 1 by using a method of installing the fastening pad 3, the pad ring 9 and the fastening screw head 5 at the front end of the wheel disc 1, and finally, rotatably tightening the fastening screw head 5 and the fastening screw tail 7 through the auxiliary groove 4 by means of the tool, the clamping and fixing of the fastening columns 10 at the front end and the rear end of the wheel disc 1 to the connecting pieces 14 are further enhanced, the number of the blades 2 and the connecting pieces 14 and the installation distance between two adjacent groups of blades 2 and the connecting pieces 14 can be selected according to actual requirements when the blades 2 are installed, and the efficiency is improved;
when the fan impeller is used, the assembled fan impeller is connected and fixed with a fan rotating shaft through a through hole 8 formed in the middle of a fastening screw tail 7, the assembled fan impeller rotates along with the rotating shaft driven by a motor on the fan, and the blades 2 drive airflow to axially flow;
when the axial flow fan works, the electromagnet 153 can be electrified to form a magnetic field in the blade 2, so that the magnetorheological fluid 152 in the hollow nylon layer 151 has the characteristics of high viscosity and low fluidity, the hollow nylon layer 151 is tightly filled, and one end, far away from the blade 2, of the hollow nylon layer 151 is sharp, so that the hollow nylon layer 151 is prevented from influencing the rotating speed of the blade 2, and the working efficiency of the axial flow fan is reduced;
when the axial flow fan stops working, the electromagnet 153 is powered off, and the magnetorheological fluid 152 presents the low-viscosity Newtonian fluid characteristic, so that when the axial flow fan needs to be disassembled for maintenance or service, and the hollow nylon layer 151 is in contact with a worker, although the end of the hollow nylon layer 151 far away from the blade 2 presents the sharp shape, because the magnetorheological fluid 152 does not have the magnetic field, the sharp part of the hollow nylon layer 151 can be pressed down, and the worker is prevented from being scratched.
The installation method comprises the following steps: firstly, utilizing the meshing connection of a fixed screw hole 6 and a connecting piece 14 to establish the connection and fixation of a blade 2 and the connecting piece 14, then inserting a fastening column 10 at one side of a fastening pad 3 at the front end of a wheel disc 1 into a corresponding fastening hole 12, sleeving one pad ring 9 on the fastening screw head 5, then enabling the fastening screw head 5 to penetrate through the fastening pad 3 to be meshed with a threaded hole 13, tightening by means of a tool through rotating the fastening screw head 5 through an auxiliary groove 4 on the fastening screw head 5, turning over the half-assembled wheel disc 1, inserting the assembled blade 2 with the connecting piece 14 into a fastening groove 11, installing the fastening pad 3, the pad ring 9 and the fastening screw head 5 at the rear end of the wheel disc 1 by using a method of installing the fastening pad 3, the pad ring 9 and the fastening screw head 5 at the front end of the wheel disc 1, and finally, rotatably tightening the fastening screw head 5 and the fastening screw tail 7 through the auxiliary groove 4 by means of the tool, further strengthen the tight fixedly of clamp of rim plate 1 front and back end fastening post 10 to connecting piece 14, accomplish fan wheel's equipment, wherein install the quantity that blade 2 can select blade 2 and connecting piece 14 according to actual demand, and the erection space of adjacent two sets of blades 2 and connecting piece 14, and the raising efficiency, fan wheel is fixed through the through-hole 8 that fastening spiral shell tail 7 middle part was seted up and the pivot realization on the fan with the installation of fan, if fan wheel appears the damage of part in the use, can present dismantle fan wheel from the pivot of fan, reuse instrument rotates fastening spiral shell head 5 and fastening spiral shell tail 7 through auxiliary tank 4 and disassembles the fan wheel who has installed, assemble again after changing the part that damages.
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 (7)
1. An axial fan impeller, includes rim plate (1), its characterized in that: the periphery of the wheel disc (1) is provided with a circle of blades (2), the lower end of each blade (2) is provided with a fixed screw hole (6) by the middle, the front end and the rear end of the wheel disc (1) are provided with fastening pad discs (3) by the middle, the middle of each fastening pad disc (3) positioned at the rear end is provided with a fastening screw tail (7), the middle of each fastening screw tail (7) is provided with a through hole (8), the middle of each fastening pad disc (3) positioned at the front end is provided with a fastening screw head (5), the middle of each fastening screw head (5) and the middle of each fastening screw tail (7) are provided with auxiliary grooves (4), cushion rings (9) are arranged between the contact surfaces of the fastening screw tail (7) and the fastening pad discs (3) and between the contact surfaces of the fastening screw heads (5) and the fastening pad discs (3), one side of each fastening pad disc (3) is provided with a plurality of fastening columns (, fastening holes (12) corresponding to the fastening columns (10) are arranged through the front end and the rear end of the wheel disc (1), a threaded hole (13) is formed in the middle of the wheel disc (1), a circle of fastening grooves (11) are formed in the middle of the front end and the rear end of the wheel disc (1), and a connecting piece (14) is arranged between the fixing screw hole (6) and the fastening grooves (11);
also comprises a scratch-proof unit (15); the scratch-proof unit (15) is used for preventing the blade (2) from scratching workers during maintenance.
2. The axial flow fan impeller of claim 1, wherein: the scratch-resistant unit (15) comprises a hollow nylon layer (151), the hollow nylon layer (151) is fixed to the edge of the blade (2), and one end, far away from the blade (2), of the hollow nylon layer (151) is sharp; magnetorheological fluid (152) is filled in the hollow nylon layer (151); the interior of the blade (2) is filled with an electromagnet (153), and the electromagnet (153) is electrified to change the fluidity of the magnetorheological fluid (152).
3. The axial flow fan impeller of claim 1, wherein: the blade (2), the fastening groove (11), the fastening hole (12) and the connecting piece (14) are equal in number, and the connecting piece (14) is meshed with the fixing screw hole (6) and connected with the fixing screw hole.
4. The axial flow fan impeller of claim 1, wherein: the surface of the blade (2) close to the fixed screw hole (6) is a cambered surface corresponding to the periphery of the wheel disc (1), and the blades (2) are distributed on the periphery of the wheel disc (1) at equal intervals.
5. The axial flow fan impeller of claim 1, wherein: the sum of the thicknesses of the fastening screw head (5) and the fastening screw tail (7) is equal to the thickness of the wheel disc (1), and the fastening screw head (5) and the fastening screw tail (7) are meshed with the middle of the wheel disc (1).
6. The axial flow fan impeller of claim 1, wherein: the thickness of the fastening pad disc (3) is equal to one sixth of the thickness of the wheel disc (1), and the wheel disc (1) is movably connected with the fastening pad disc (3).
7. The axial flow fan impeller of claim 1, wherein: the positions of the fastening holes (12) correspond to the positions of the fastening grooves (11), and the corresponding fastening holes (12) are perpendicular to and communicated with the fastening grooves (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011345995.7A CN112503023A (en) | 2020-11-25 | 2020-11-25 | Axial flow fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011345995.7A CN112503023A (en) | 2020-11-25 | 2020-11-25 | Axial flow fan impeller |
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| Publication Number | Publication Date |
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| CN112503023A true CN112503023A (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011345995.7A Pending CN112503023A (en) | 2020-11-25 | 2020-11-25 | Axial flow fan impeller |
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| CN107100894A (en) * | 2017-07-05 | 2017-08-29 | 陕西金翼通风科技有限公司 | A kind of installation method of ventilation blower blade, impeller and impeller |
| CN109083862A (en) * | 2018-08-09 | 2018-12-25 | 昆明创培知识产权服务有限公司 | A kind of novel magnetic rheology type water pump |
| DE202019105789U1 (en) * | 2019-05-15 | 2019-12-10 | Suzhou He Er Bai Si Pump Co., Ltd. | Impeller for a centrifugal water pump |
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