CN112696381A - High-efficient axial fan impeller - Google Patents
High-efficient axial fan impeller Download PDFInfo
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- CN112696381A CN112696381A CN202011619353.1A CN202011619353A CN112696381A CN 112696381 A CN112696381 A CN 112696381A CN 202011619353 A CN202011619353 A CN 202011619353A CN 112696381 A CN112696381 A CN 112696381A
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- Prior art keywords
- fastening
- wheel disc
- fastening screw
- blades
- fan blade
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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
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
- F04D29/36—Blade mountings adjustable
- F04D29/362—Blade mountings adjustable during rotation
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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
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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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
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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 high-efficiency axial flow fan impeller which comprises a wheel disc, wherein a circle of blades are installed on the periphery of the wheel disc, connecting columns are installed at the lower ends of the blades close to the middle part, fastening pad discs are installed at the front end and the rear end of the wheel disc close to the middle part, 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, backing 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 connecting pieces are installed between the connecting columns and the fastening grooves; the blades in the invention can automatically adjust the inclination angle when rotating, thereby effectively reducing the starting resistance of the impeller and ensuring the safety of driving the impeller to rotate.
Description
Technical Field
The invention relates to the field of fans, in particular to a high-efficiency 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: the blade inclination angle of the impeller in the prior art is difficult to automatically adjust according to the actual rotating speed of the impeller, so that the resistance of the impeller is large when the impeller is started, the efficiency of accelerating the impeller is influenced, the power consumption of the impeller is large when the impeller is started, and a motor is easy to damage.
To this end, a high efficiency axial flow fan impeller is proposed.
Disclosure of Invention
The invention aims to provide a high-efficiency 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 efficient axial flow fan impeller comprises a wheel disc, a circle of blades are arranged on the periphery of the wheel disc, the lower end of the blade is provided with a connecting column near the middle part, the front and rear ends of the wheel disc are provided with fastening pad discs near the middle part, 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 connecting columns and the fastening grooves;
the blades comprise main blades and blade sleeves which are sequentially sleeved on the outer sides of the main blades, the lower ends of the connecting columns are rotatably connected with connecting pieces, the connecting pieces are in threaded connection with the fastening grooves, one side of the upper ends of the connecting pieces is fixedly connected with an arc-shaped air cylinder, the output ends of the arc-shaped air cylinder are fixedly connected to the convex blocks, the convex blocks are fixedly connected with the connecting columns, the arc-shaped air cylinder is communicated to one side of the tops of the cavities through air guide pipes, the column blades are provided with cavities, piston plates are arranged in the cavities and matched with the inner walls of the cavities, the piston plates move along the radial direction of the wheel disc, folding air bags are arranged on the inner sides of the blade sleeves far away from the wheel disc, the folding air bags are connected between the connected blade sleeves and between the blade sleeves and the main blades through the folding air bags, the folding air, the cavity communicates through the second mechanism of taking a breath with connecting between the folding gasbag of main flabellum, first mechanism of taking a breath and second mechanism of taking a breath structure the same, and first mechanism of taking a breath and second mechanism of taking a breath all include check valve and relief valve, the check valve is used for the folding gasbag or the cavity that are located the folding gasbag inboard in the outside to admit air to the inboard, the relief valve is used for being located inboard folding gasbag or the cavity to the folding gasbag pressure release exhaust of outside, the piston plate passes through the spring and is connected with one side that the cavity is close to the connecting piece, one side that the cavity is close to the connecting piece is connected to the outer wall of main flabell.
The fan wheel equipment is accomplished, wherein the quantity of installation blade can be according to actual demand selection blade, and the erection space of adjacent two sets of blades, the boost efficiency, during the use, the through-hole that will assemble fan wheel and set up through fastening spiral shell tail middle part is connected fixedly with the fan pivot, when motor on the fan drove the pivot pivoted, the fan wheel who assembles rotates thereupon, the blade drives the air current axial flow, if fan wheel the damage of part appears in the use, can dismantle fan wheel from the pivot of fan now, reuse instrument rotates fastening spiral shell head and fastening spiral shell tail through the auxiliary tank and disassembles the fan wheel who installs, assemble again after changing the part that damages, need not to change whole fan wheel.
Preferably, the number of the blades, the fastening grooves, the fastening holes and the connecting pieces is equal, and the connecting pieces are meshed with the connecting columns.
Through adopting above-mentioned technical scheme, insert the fastening groove with the connecting piece, the fastening hole is inserted to the fastening post, utilizes fastening post to press from both sides tightly the fastening around to the connecting piece.
Preferably, the lower part of the inner side of the fan blade sleeve is provided with a brush pad.
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.
Through adopting above-mentioned technical scheme, set up the through-hole in the middle part of fastening spiral shell tail, for the installation of later stage fan wheel provides the space, the auxiliary tank of seting up in fastening spiral shell head and fastening spiral shell tail middle part is convenient for to the dismantlement and the installation of fastening spiral shell head and fastening spiral shell tail.
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.
By adopting the technical scheme, after the fastening screw head and the fastening screw tail are sleeved with the backing ring, the middle part of the fastening backing plate is penetrated, the fastening screw head and the fastening screw tail are connected with the threaded hole in a meshed mode to be tightened, and the fastening backing plate is fixed at the front end and the rear end of the wheel 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.
Through adopting above-mentioned technical scheme, set up corresponding fastening slot and fastening hole on the rim plate, utilize the cooperation of fastening post and connecting piece, the quantity and the interval of blade are adjusted as required simultaneously to convenient dismantlement and the installation to the blade.
Compared with the prior art, the invention has the beneficial effects that:
1. along with the rotation of the wheel disc, the piston plate in the cavity of the main fan blade moves outwards under the action of centrifugal force and extrudes gas through the movement of the piston plate, on one hand, the gas is extruded into the arc-shaped cylinder through the gas guide pipe, the arc-shaped cylinder extends to drive the blades to rotate, and the larger the rotating speed of the blades is, the larger the centrifugal force borne by the piston plate is, the larger the rotating angle of the blades is, so that the air exchange rate is further improved; on the other hand, the outward movement of the piston plate can also extrude the air in the cavity to the folding air bag, so that the folding air bag is expanded to drive the whole fan blade to extend; through the arrangement of the first air exchange mechanism and the second air exchange mechanism, the folded air bag positioned on the inner side is inflated again after being completely unfolded, so that the fan blade sleeves can extend outwards one by one, the length of the fan blades can be controlled in a multi-stage mode in cooperation with the rotating speed, and the ventilation volume is further improved under the high-speed operation; after the rotating speed is reduced and the rotating is stopped, the fan blade sleeve can reset, and the surface of the main fan blade and the outer surface of the fan blade sleeve positioned on the inner side can be cleaned by matching the arrangement of the brush pad; after the fan blade sleeve is reset to enable the brush pad to cross the ventilating hole, the gas exhausted from the ventilating hole for continuing exhausting gas can clean the brush pad positioned on the inner side;
2. inserting a fastening column at one side of a fastening pad disk at the front end of the wheel disk into a corresponding fastening hole, sleeving one of the pad rings on a fastening screw head, enabling the fastening screw head to penetrate through the fastening pad disk to be meshed with a threaded hole, rotating the fastening screw head by means of an auxiliary groove on the fastening screw head to tighten, turning over one half of the assembled wheel disk, inserting the assembled blade with a connecting piece into the fastening groove, installing the fastening pad disk, the pad ring and the fastening screw tail at the rear end of the wheel disk by using a method for installing the fastening pad disk, the pad ring and the fastening screw head at the front end of the wheel disk, and finally rotating and tightening the fastening screw head and the fastening screw tail by means of a tool through the auxiliary groove to further strengthen the clamping and fixing of the fastening column at the front end and the rear end of the wheel disk on the connecting piece, wherein the quantity of the blades and the connecting pieces and the installation distance between two adjacent groups of blades can be, the efficiency is improved;
3. during the use, through-hole and fan pivot that the fan wheel that will assemble was seted up through fastening spiral shell tail middle part are connected fixedly, when motor on the fan drove pivot pivoted, the fan wheel that assembles rotates thereupon, the blade drives the air current axial flow, if the damage of part appears in the fan wheel in the use, can dismantle fan wheel from the pivot of fan now, reuse instrument rotates fastening spiral shell head and fastening spiral shell tail through the auxiliary tank and disassembles the fan wheel who installs, assemble again after changing the part of damage, need not to change whole fan wheel.
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 schematic structural diagram of the arc-shaped cylinder of the present invention.
In the figure: 1. a wheel disc; 2. a blade; 3. fastening a cushion disc; 4. an auxiliary groove; 5. fastening a screw head; 6. connecting columns; 7. fastening a screw tail; 8. a through hole; 9. a backing ring; 10. fastening the column; 11. a fastening groove; 12. a fastening hole; 13. a threaded hole; 14. a connecting member; 15. a main fan blade; 16. a fan blade sleeve; 17. an arc-shaped cylinder; 18. a bump; 19. a cavity; 20. a piston plate; 21. folding the airbag; 22. a first ventilation mechanism; 23. a second ventilation mechanism; 24. a spring; 25. a ventilation hole; 26. a brush pad; 27. an air duct.
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:
a high-efficiency axial flow fan impeller is shown in figures 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, connecting columns 6 are installed at the lower ends of the blades 2 close to the middle, fastening pad discs 3 are installed at the front ends and the rear ends of the wheel disc 1 close to the middle, fastening screw tails 7 are installed at the middle of the fastening pad discs 3 at the rear ends, through holes 8 are formed in the middle of the fastening screw tails 7, fastening screw heads 5 are installed at the middle of the fastening pad discs 3 at the front ends, auxiliary grooves 4 are formed in the middle of the fastening screw heads 5 and the fastening screw tails 7, backing rings 9 are installed between the fastening screw tails 7 and the contact surfaces of the fastening pad discs 3 and between the fastening screw heads 5 and the contact surfaces of the fastening pad discs 3, a plurality of fastening columns 10 are installed on one side of the fastening pad discs 3, and fastening holes 12 corresponding to the fastening columns 10 are installed at the front ends and the rear ends, 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 leaning-on mode, and a connecting piece 14 is installed between the connecting column 6 and the fastening grooves 11.
Specifically, as shown in fig. 1 and 2, the blades 2, the fastening grooves 11, the fastening holes 12, and the connecting members 14 are equal in number, and the connecting members 14 are engaged with the connecting columns 6.
By adopting the technical scheme, 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 shown in fig. 1, 2, 3 and 5, the blade 2 includes a main blade 15 and a blade sleeve 16 sequentially sleeved outside the main blade 15, the lower end of the connecting column 6 is rotatably connected with a connecting piece 14, the connecting piece 14 is in threaded connection with the fastening groove 11, one side of the upper end of the connecting piece 14 is fixedly connected with an arc cylinder 17, the output end of the arc cylinder 17 is fixedly connected to a projection 18, the projection 18 is fixedly connected with the connecting column 6, the arc cylinder 17 is communicated to one side of the top of a cavity 19 through an air duct 27, the column blade is provided with a cavity 19, a piston plate 20 is arranged in the cavity 19, the piston plate 20 is matched with the inner wall of the cavity 19, the piston plate 20 moves along the radial direction of the wheel disc 1, a folding air bag 21 is arranged at a position distance away from the wheel disc 1 on the inner side of the blade sleeve 16, the connected blade sleeves 16 and the main blade 15 are connected through the, the foldable air bags 21 extend and retract along the radial direction of the wheel disc 1, the adjacent foldable air bags 21 are communicated through a first air exchange mechanism 22, the cavity 19 is communicated with the foldable air bag 21 connected to the main fan blade 15 through a second air exchange mechanism 23, the first air exchange mechanism 22 and the second air exchange mechanism 23 are identical in structure, each of the first air exchange mechanism 22 and the second air exchange mechanism 23 comprises a one-way valve and a pressure release valve, each one-way valve is used for air inflow of the foldable air bag 21 located on the outer side to the folded air bag 21 or the cavity 19 located on the inner side to the inner side, each pressure release valve is used for pressure release and air exhaust of the foldable air bag 21 located on the inner side or the foldable air bag 21 located on the outer side to the cavity 19, each piston plate 20 is connected with one side, close to the connecting piece 14, of the cavity; the lower part of the inner side of the fan blade sleeve 16 is provided with a brush pad 26.
By adopting the technical scheme, when the air interchanger is used, along with the rotation of the wheel disc 1, the piston plate 20 in the cavity 19 of the main fan blade 15 moves outwards under the action of centrifugal force and extrudes air through the movement of the piston plate 20, on one hand, the air is extruded into the arc-shaped air cylinder 17 through the air guide pipe 27, the arc-shaped air cylinder 17 extends to drive the blade 2 to rotate, and the larger the rotation speed of the blade 2 is, the larger the centrifugal force borne by the piston plate 20 is, the larger the rotation angle of the blade 2 is, so that the air interchanging speed is further improved; on the other hand, the outward movement of the piston plate 20 also causes the air in the cavity 19 to be pressed against the folded air bag 21, so that the folded air bag 21 is expanded, and the whole fan blade is extended. Through the arrangement of the first ventilation mechanism 22 and the second ventilation mechanism 23, the folded air bag 21 positioned on the inner side is inflated again after being completely unfolded, so that the fan blade sleeve 16 can extend outwards one by one, the length of the fan blade 2 is controlled in a matching manner through rotating speed multi-stage, and the ventilation volume is further improved under the high-speed operation. After the rotating speed is reduced and the rotating is stopped, the fan blade sleeve 16 can be reset, and the surface of the main fan blade 15 and the outer surface of the fan blade sleeve 16 positioned on the inner side can be cleaned by matching with the arrangement of the brush pad 26; after the fan blade cover 16 is reset so that the brush pad 26 passes over the ventilation hole 25, the ventilation hole 25 which continues to exhaust exhausts air can clean the brush pad 26 positioned at the inner side. It should be noted that, in the initial state of the blade 2 of the present invention, the plane of the blade 2 is parallel to the cross section of the wheel disc 1, and the maximum rotation angle of the blade 2 does not exceed 45 °; the fan blade sleeve 16 is made of light high-strength materials, such as carbon fiber materials, the resistance of the impeller in starting is further reduced, the situation that the fan blade sleeve 16 generates overlarge outward moving force under the action of centrifugal force and is damaged easily due to large weight of the fan blade sleeve is avoided, the fan blade sleeve 16 mainly moves depending on expansion of the folding air bag 21, and the high moving stability of the fan blade sleeve 16 is guaranteed.
Specifically, 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 of the wheel disc 1.
Through adopting above-mentioned technical scheme, 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, the auxiliary tank 4 of seting up in fastening spiral shell head 5 and fastening spiral shell tail 7 middle part is convenient for to the dismantlement and the installation of fastening spiral shell head 5 and fastening spiral shell tail 7.
Specifically, as shown in fig. 2, the thickness of the fastening pad 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 3.
By adopting the technical scheme, after the fastening screw head 5 and the fastening screw tail 7 are sleeved with the backing ring 9, the middle part of the fastening backing plate 3 is penetrated, the fastening screw head 5 and the fastening screw tail 7 are connected with the threaded hole 13 in a meshing manner for tightening, and the fastening backing plate 3 is fixed at the front end and the rear end of the wheel disc 1.
Specifically, as shown in fig. 2, the positions of the fastening holes 12 and the fastening slots 11 correspond to each other, and the corresponding fastening holes 12 and the fastening slots 11 are perpendicular to each other and communicate with each other.
Through adopting above-mentioned technical scheme, set up corresponding fastening slot 11 and fastening hole 12 on rim plate 1, utilize fastening post 10 and connecting piece 14's cooperation, convenient dismantlement and the installation to blade 2, adjust the quantity and the interval of blade 2 as required simultaneously.
The working principle is as follows: inserting a fastening post 10 at one side of a fastening pad 3 at the front end of the wheel disc 1 into a corresponding fastening hole 12, sleeving one pad ring 9 on a fastening screw head 5, enabling the fastening screw head 5 to penetrate through the fastening pad 3 to be meshed with a threaded hole 13, rotating the fastening screw head 5 through an auxiliary groove 4 on the fastening screw head 5 by means of a tool to tighten, turning over one half of the assembled wheel disc 1, inserting the assembled blade 2 with a connecting piece 14 into the fastening groove 11, installing the fastening pad 3, the pad ring 9 and the fastening screw head 5 at the front end of the wheel disc 1, installing the fastening pad 3, the pad ring 9 and the fastening screw tail 7 at the rear end of the wheel disc 1, and finally, rotationally tightening the fastening screw head 5 and the fastening screw tail 7 through the auxiliary groove 4 by means of the tool to further strengthen the clamping and fixing of the fastening post 10 at the front end and the rear end of the wheel disc 1 on the connecting piece 14, wherein the quantity of the blades 2 and the connecting piece 14 can be selected according to actual requirements, and the installation interval of two adjacent sets of blades 2 and connecting piece 14, the efficiency is improved, in use, the 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 the 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 part appears in the use, can be present to dismantle the 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 installs, assemble after changing the part of damage again, need not to change whole fan wheel.
The installation method comprises the following steps: inserting a fastening post 10 at one side of a fastening pad 3 at the front end of the wheel disc 1 into a corresponding fastening hole 12, sleeving one pad ring 9 on a fastening screw head 5, enabling the fastening screw head 5 to penetrate through the fastening pad 3 to be meshed with a threaded hole 13, rotating the fastening screw head 5 through an auxiliary groove 4 on the fastening screw head 5 by means of a tool to tighten, turning over half of the assembled wheel disc 1, inserting the assembled blade 2 with a connecting piece 14 into the fastening groove 11, installing the fastening pad 3, the pad ring 9 and the fastening screw head 5 at the front end of the wheel disc 1, installing the fastening pad 3, the pad ring 9 and the fastening screw tail 7 at the rear end of the wheel disc 1, and finally, rotationally tightening the fastening screw head 5 and the fastening screw tail 7 through the auxiliary groove 4 by means of the tool to further strengthen the fastening post 10 at the front end and the rear end of the wheel disc 1 to clamp and fix the connecting piece 14, thereby completing the assembly of the fan impeller, wherein the quantity that blade 2 and connecting piece 14 can be selected according to actual demand to installation blade 2, and the erection space of adjacent two sets of blade 2 and connecting piece 14, the lifting efficiency, the through-hole 8 that fan wheel and fan's installation were fixed to be seted up through fastening spiral shell tail 7 middle part is realized with the pivot on the fan, if fan wheel the damage of part 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 again after the part of change damage.
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 (6)
1. The utility model provides a high-efficient axial fan impeller, includes rim plate (1), its characterized in that: the wheel disc is characterized in that a circle of blades (2) are installed on the periphery of the wheel disc (1), connecting columns (6) are installed at the lower ends of the blades (2) by the middle of the lower end of the wheel disc, fastening cushion discs (3) are installed at the front and rear ends of the wheel disc (1) by the middle of the lower end of the blades, fastening screw tails (7) are installed at the middle of the fastening cushion discs (3) at the rear end of the wheel disc, through holes (8) are formed in the middle of the fastening screw tails (7), fastening screw heads (5) are installed at the middle of the fastening cushion discs (3) at the front end of the wheel disc, auxiliary grooves (4) are formed in the middle of the fastening screw heads (5) and the fastening screw tails (7), cushion rings (9) are installed between the contact surfaces of the fastening screw tails (7) and the fastening cushion discs (3) and between the contact surfaces of the fastening screw heads (5) and the fastening cushion discs (3), a plurality of fastening columns (10) are installed on one side of the fastening cushion discs (, 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 middle of the front end and the rear end of the wheel disc (1), and connecting pieces (14) are arranged between the connecting columns (6) and the fastening grooves (11);
the blade (2) comprises a main fan blade (15) and a fan blade sleeve (16) which is sequentially sleeved outside the main fan blade (15), the main fan blade (15) is fixedly connected with a connecting column (6) through the middle part of one side close to the wheel disc (1), the lower end of the connecting column (6) is rotatably connected with a connecting piece (14), the connecting piece (14) is in threaded connection with the fastening groove (11), one side of the upper end of the connecting piece (14) is fixedly connected with an arc-shaped cylinder (17), the output end of the arc-shaped cylinder (17) is fixedly connected to a convex block (18), the convex block (18) is fixedly connected with the connecting column (6), the arc-shaped cylinder (17) is communicated to one side of the top of the cavity (19) through an air duct (27), the column fan blade is provided with the cavity (19), a piston plate (20) is arranged in the cavity (19), and the piston plate, the piston plate (20) moves along the radial direction of the wheel disc (1), the inner sides of the fan blade sleeves (16) are far away from the position of the wheel disc (1) and are provided with folding air bags (21), the connected fan blade sleeves (16) and the fan blade sleeves (16) and main fan blades (15) are connected through the folding air bags (21), the folding air bags (21) stretch out and draw back along the radial direction of the wheel disc (1), the adjacent folding air bags (21) are communicated through a first air exchange mechanism (22), and the cavity (19) is communicated with the folding air bags (21) connected to the main fan blades (15) through a second air exchange mechanism (23);
first ventilation mechanism (22) and second ventilation mechanism (23) structure are the same, and first ventilation mechanism (22) and second ventilation mechanism (23) all include check valve and relief valve, the check valve is used for being located folding gasbag (21) or cavity (19) of the inboard of folding gasbag (21) in the outside and admits air, the relief valve is used for being located folding gasbag (21) or cavity (19) of inboard and folding gasbag (21) pressure release exhaust to the outside, piston plate (20) are connected through spring (24) and one side that cavity (19) are close to connecting piece (14), one side that cavity (19) are close to connecting piece (14) is connected to the outer wall of main fan blade (15) through scavenge hole (25).
2. A high efficiency axial flow fan impeller according to claim 1, wherein: the number of the blades (2), the fastening grooves (11), the fastening holes (12) and the connecting pieces (14) is equal, and the connecting pieces (14) are meshed with the connecting columns (6).
3. A high efficiency axial flow fan impeller according to claim 1, wherein: the lower part of the inner side of the fan blade sleeve (16) is provided with a brush pad (26).
4. A high efficiency axial flow fan impeller according to 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).
5. A high efficiency axial flow fan impeller according to 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).
6. A high efficiency axial flow fan impeller according to 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 |
|---|---|---|---|
| CN202011619353.1A CN112696381B (en) | 2020-12-31 | 2020-12-31 | High-efficient axial fan impeller |
Applications Claiming Priority (1)
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| TW201122217A (en) * | 2009-12-29 | 2011-07-01 | Univ Far East | Air-bag type horizontal wind turbine having foldable blades. |
| CN103899571A (en) * | 2014-03-17 | 2014-07-02 | 安徽华瑞塑业有限公司 | Isolated axial flow pump blade |
| CN105626394A (en) * | 2016-02-02 | 2016-06-01 | 上海交通大学 | Telescopic fan blade |
| FR3046439A1 (en) * | 2016-01-05 | 2017-07-07 | Snecma | VARIABLE TIMING BLOWER WITH LOW NO TURBOREACTOR |
| 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 |
| US20180066671A1 (en) * | 2016-09-08 | 2018-03-08 | U.S. Army Research Laboratory Attn: Rdrl-Loc-I | Adaptable articulating axial-flow compressor/turbine rotor blade |
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|---|---|---|---|---|
| TW201122217A (en) * | 2009-12-29 | 2011-07-01 | Univ Far East | Air-bag type horizontal wind turbine having foldable blades. |
| CN103899571A (en) * | 2014-03-17 | 2014-07-02 | 安徽华瑞塑业有限公司 | Isolated axial flow pump blade |
| FR3046439A1 (en) * | 2016-01-05 | 2017-07-07 | Snecma | VARIABLE TIMING BLOWER WITH LOW NO TURBOREACTOR |
| CN105626394A (en) * | 2016-02-02 | 2016-06-01 | 上海交通大学 | Telescopic fan blade |
| US20180066671A1 (en) * | 2016-09-08 | 2018-03-08 | U.S. Army Research Laboratory Attn: Rdrl-Loc-I | Adaptable articulating axial-flow compressor/turbine rotor blade |
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