CN103115021B - Vane wheel device - Google Patents
Vane wheel device Download PDFInfo
- Publication number
- CN103115021B CN103115021B CN201310040990.7A CN201310040990A CN103115021B CN 103115021 B CN103115021 B CN 103115021B CN 201310040990 A CN201310040990 A CN 201310040990A CN 103115021 B CN103115021 B CN 103115021B
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- wheel hub
- vane
- radius
- petiole
- impeller
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Abstract
The invention discloses a vane wheel device and belongs to the field of fan component parts. The vane wheel device solves the problems that a prior vane wheel device of a fan is low in efficiency, large in noise and large in material consumption. The vane wheel device comprises a hub and a plurality of vanes evenly distributed on the hub. The hub is composed of a front hub plate and a rear hub plate. Each vane is composed of a vane rod and a vane body which are combined as a whole. An airfoil profile of each vane body is a C4 airfoil profile and a gravity center stacking line of each vane body is a three-dimensional curve. Vane rod front grooves are evenly distributed along an outer circumference of the front hub plate and vane rod rear grooves corresponding to the vane rod front grooves in position are formed along an outer circumference of the rear hub plate. The front hub plate and the rear hub plate are connected through a bolt, so that the vane rods of the vanes are limited in the hubs. The vane wheel device is simple in structure, convenient to produce, easy to install, capable of enabling a vane installation angle to be adjusted according to working conditions, large in air quantity, high in wind pressure and efficiency, low in noise and suitable for being widely used in ventilation systems of various factories, warehouses and buildings and air supplying and air inducing systems of other industries.
Description
Technical field
The invention belongs to blower fan constituent elements, be specifically related to a kind of impeller unit of ventilator.
Background technique
The draught fan impeller that the ventilation system of current factory, storehouse and building and other industrial air-supplies and induced draught system use, be adopt traditional design method design mostly, efficiency is low, noise is large, consumptive material is high, comparatively large to energy waste, is unfavorable for energy-saving and emission-reduction.
In addition, current flexural tensile elastic modulus technology, on the axial flow compressor of aviation motor and high pressure ratio, starts to be widely used, and confirm through overtesting, this technology has reduction noise, improves the feature of turbomachine performance.This technology is used for industry and civilian blower fan, develops the general draught fan impeller of a kind of novel high-efficient low-noise, there is very large using value.
So in conjunction with above contextual factor, develop a kind of structure simple, adaptation condition scope is wide, and consumptive material is low, and the impeller of high-efficient low-noise, meet the general orientation that national energy-saving reduces discharging.
The present invention adopts rectangular coordinate system in space, and O is initial point, X-axis be level to the right, Z axis is vertically upward, and Y-axis is that vertical paper is outside, and space curve is projected as circumference projection in ZOX plane, and space curve is projected as axis projection ZOY plane.
Summary of the invention
The invention provides a kind of impeller unit, the impeller unit efficiency solving existing ventilator is low, and noise is large, the problem that consumptive material is many.
A kind of impeller unit provided by the present invention, comprise wheel hub and equally distributed multiple blade on wheel hub, described wheel hub is made up of front-wheel hub and trailing wheel hub, it is characterized in that:
Described blade is made up of petiole integrally and blade body, and described petiole is the cylindrical body with flange; The aerofoil profile of described blade body adopts C4 aerofoil profile, and it is space three-dimensional curve that the center of gravity of blade body amasss superimposing thread, and its circumference is projected as circular arc, and radius of arc is 1.38 ~ 1.5 with the ratio of impeller radius, and arc bend is to being sweepforward, and sweepforward angle is 15 ° ~ 20 °;
The described center of gravity axis projection that amasss superimposing thread is by antecurvature orthodrome and palintrope small arc-shaped is tangent forms, points of tangency is at high 0.9 ~ 0.95 place of leaf, antecurvature large circular arc radius is 1.90 ~ 1.95 with the ratio of impeller radius, antecurvature orthodrome kyphotic angle is 8 ° ~ 10 °, and palintrope small arc-shaped radius is 0.08 ~ 0.12 with the ratio of impeller radius;
Described front-wheel hub profile is disk, groove before there is equally distributed petiole along its excircle, disc surfaces has equally distributed bolt hole close to excircle, and disc centre has protruding connection, and coupling shaft has axial central through hole and is connected for same motor;
Described trailing wheel hub profile is also disk, have along its excircle and put corresponding petiole pit with the front slot of described petiole, disc surfaces has the nut counterbore corresponding with described bolt hole position close to excircle, and disc centre has the axis hole matched with described coupling shaft;
Described front-wheel hub is connected by bolt part with trailing wheel hub, and before each petiole, groove and corresponding petiole pit form petiole groove, by the restriction of the petiole of blade within it.
Described impeller unit, is characterized in that:
Described radius of arc is 1.45 ~ 1.48 with the ratio of impeller radius, and arc bend is to being sweepforward, and sweepforward angle is 15 ° ~ 18 °;
Described antecurvature orthodrome and palintrope small arc-shaped points of tangency are at high 0.91 ~ 0.93 place of leaf, antecurvature large circular arc radius is 1.92 ~ 1.94 with the ratio of impeller radius, antecurvature orthodrome kyphotic angle is 9 ° ~ 10 °, and palintrope small arc-shaped radius is 0.09 ~ 0.11 with the ratio of impeller radius.
Processing molding method of the present invention can comprise the steps:
(1) use three-dimensional software, according to blade design drawing, amass superimposing thread according to aerofoil profile and center of gravity and carry out blade body generation, assemble petiole, form the threedimensional model of blade;
(2) use three-dimensional software, according to the design drawing of front and back wheels hub, draw the threedimensional model of front and back wheels hub;
(3) select copper billet or other metallic material as rapidoprint, the threedimensional model of leaf three-dimensional model and front and back wheels hub is inputted in numerically controlled lathe, generates entity blade, front-wheel hub, trailing wheel hub;
(4) be model die sinking with the entity blade generated in step (3), front-wheel hub, trailing wheel hub, make the mould of blade, front-wheel hub, trailing wheel hub;
(5) use aluminum alloy to water casting blade, front-wheel hub, trailing wheel hub mould, realize batch production.
Assembly process of the present invention is as follows:
(1) petiole of blade to be wedged one by one before the petiole of front-wheel hub in groove;
(2) overlap corresponding with front-wheel hub for trailing wheel hub, groove before the petiole of the corresponding front-wheel hub of petiole pit of trailing wheel hub, the axle of the corresponding front-wheel hub of axis hole of trailing wheel hub;
(3) screw bolt and nut is put into corresponding bolt hole and nut counterbore, tight a bolt fixing impeller blade.
The impeller assembled, can adjust blade angle as follows:
(1) according to the needs of operating mode, the established angle of blade is calculated;
(2) bolt on wheel hub, nut is loosened; Front and rear wheel hub is reduced the impacting force of blade petiole;
(3) blade is loosened, rotor blade, until reach the blade angle that step (1) calculates;
(4) bolt on wheel hub, nut is tightened; Front and rear wheel hub is increased, stator blade to the impacting force of blade petiole.
Blade of the present invention is wing blade flexural tensile elastic modulus, greatly improves aeroperformance and the noiseproof feature of blower fan; Wheel hub external frame adopts spherical cutting method, and wheel hub inside can hollow out, reduces spillage of material and is convenient to shaping.Whole impeller unit structure is simple, be convenient to produce, simple installation, can according to Operating condition adjustment blade angle size, air quantity is large, and blast is high, and efficiency is high, noise is low, can be widely used in ventilation system and other industrial air-supply and the induced draught system of various factory building, storehouse and building.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention;
Fig. 2 is side view of the present invention;
Fig. 3 is that the inclined shaft of blade surveys view;
Fig. 4 (A) is blade formation product superimposing thread circumferential surface projection intention;
Fig. 4 (B) is blade formation product superimposing thread axial vane surface projection intention;
Fig. 5 (A) is the plan view of front-wheel hub;
Fig. 5 (B) is the side sectional view of front-wheel hub;
Fig. 6 (A) is the plan view of trailing wheel hub;
Fig. 6 (B) is the side sectional view of trailing wheel hub;
Fig. 7 is the schematic diagram that impeller unit of the present invention is arranged in blower fan under operating conditions;
Fig. 8 is that the embodiment of the present invention 2 is arranged on experimental performance plotted curve in blower fan;
Fig. 9 is that the embodiment of the present invention 3 is arranged on experimental performance plotted curve in blower fan.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As depicted in figs. 1 and 2, the present invention includes wheel hub and equally distributed multiple blade 1 on wheel hub, described wheel hub is made up of front-wheel hub 2 and trailing wheel hub 3.
As shown in Figure 3, described blade 1 is made up of petiole 10 integrally and blade body 11, and described petiole 10 is for having the cylindrical body of flange;
As shown in Fig. 4 (A), Fig. 4 (B), get space plane XOZ plane, be defined as the plane (circumferential surface) at place, vane rotary direction, wherein OZ direction is leaf height direction, and OX direction is sense of rotation; Get space plane YOZ plane, be defined as the plane (axial vane surface) at airflow direction place, wherein OZ direction is leaf height direction, and OY direction is airflow direction.The aerofoil profile 11-1 of described blade body 11 adopts C4 aerofoil profile, it is space three-dimensional curve that the center of gravity of blade body 11 amasss superimposing thread, and its circumference is projected as circular arc 11-2, and circular arc 11-2 radius is 1.38 ~ 1.5 with the ratio of impeller radius, circular arc 11-2 bends towards as sweepforward, and sweepforward angle is 15 ° ~ 20 °;
The described center of gravity axis projection that amasss superimposing thread is by antecurvature orthodrome 11-3 and palintrope small arc-shaped 11-4 is tangent forms, points of tangency is at leaf high by 0.92 (0.9 ~ 0.95) place, antecurvature orthodrome 11-3 radius is 1.90 ~ 1.95 with the ratio of impeller radius, antecurvature orthodrome kyphotic angle is 8 ° ~ 12 °, and palintrope small arc-shaped 11-4 radius is 0.08 ~ 0.12 with the ratio of impeller radius;
When generating blade body, it is long-pending folded that aerofoil profile amasss superimposing thread along the space three-dimensional that Fig. 4 (A) and Fig. 4 (B) synthesizes, and Ji Die center is at aerofoil profile chord length 0.4 place.Camber and aerofoil profile chord length are according to reference book " ventilator " Li Qingyi, and China Machine Press, the design method of 1981ISBN7111003470, P144-172 designs.
As shown in Fig. 5 (A), Fig. 5 (B), described front-wheel hub 2 profile is disk, groove 6 before there is equally distributed petiole along its excircle, disc surfaces has equally distributed bolt hole 8 close to excircle, disc centre has protruding coupling shaft 4, and coupling shaft 4 has axial central through hole and is connected for same motor;
As shown in Fig. 6 (A), Fig. 6 (B), described trailing wheel hub 3 profile is also disk, along its excircle, there is the petiole pit 7 corresponding with groove 6 position before described petiole, disc surfaces has the nut counterbore 9 corresponding with described bolt hole 8 position close to excircle, and disc centre has the axis hole 5 matched with described coupling shaft 4;
Described front-wheel hub 2 is connected by bolt part with trailing wheel hub 3, and before each petiole, groove 6 and corresponding petiole pit 7 form petiole groove, are limited within it by the petiole 10 of blade 1.
Impeller unit comprises multiple flexural tensile elastic modulus 1, spherical front-wheel hub 2, spherical trailing wheel hub 3 and some connecting bolts and nut and forms, and connecting bolt is connected with nut counterbore 9 by bolt hole 8 with nut.
Spherical front-wheel hub 2 and spherical trailing wheel hub 3 are coordinated with rear-wheel hub disk hole 5 by front-wheel hub axle 4, are combined and become impeller hub.
Before the petiole 10 of blade 1 and the petiole of front-wheel hub 2, the petiole pit 7 of groove 6, trailing wheel hub 3 agrees with mutually, and is connected by the bolt part between bolt hole 8 and nut counterbore 9, compresses front and back wheels hub 2,3 and fixes.
Embodiment 1: impeller diameter is 700mm, and hub ratio is 0.3, and as shown in Fig. 4 (B), leaf height is 243mm, and on circumferential surface, long-pending superimposing thread adopts radius to be the circular arc of 512mm (be 1.46 with impeller outer diameter ratio), antecurvature 15 ° of angles; At circumferential surface, from blade root to 0.92 leaf high (223mm), employing radius is the circular arc of 675mm (be 1.93 with impeller outer diameter ratio), sweepforward 10 ° of angles, from 0.92 leaf high (223mm) to leaf top, employing radius is the sweepback circular arc of 35mm (be 0.1 with impeller outer diameter ratio).
Embodiment 2: impeller diameter is 500mm, and hub ratio is 0.3, and leaf height is 175mm, and on circumferential surface, long-pending superimposing thread adopts radius to be the circular arc of 345mm (be 1.38 with impeller outer diameter ratio), antecurvature 18 ° of angles; At circumferential surface, from blade root to 0.9 leaf high (158mm), employing radius is the circular arc of 475mm (be 1.9 with impeller outer diameter ratio), sweepforward 12 ° of angles, from 0.9 leaf high (158mm) to leaf top, employing radius is the sweepback circular arc of 30mm (be 0.12 with impeller outer diameter ratio).
Embodiment 3: impeller diameter is 910mm, and hub ratio is 0.27, and leaf height is 664mm, and on circumferential surface, long-pending superimposing thread adopts radius to be the circular arc of 682mm (be 1.5 with impeller outer diameter ratio), antecurvature 20 ° of angles; At circumferential surface, from blade root to 0.95 leaf high (630mm), employing radius is the circular arc of 887mm (be 1.95 with impeller outer diameter ratio), sweepforward 10 ° of angles, from 0.95 leaf high (630mm) to leaf top, employing radius is the sweepback circular arc of 36.5mm (be 0.08 with impeller outer diameter ratio).
Embodiment 4: impeller diameter is 600mm, and hub ratio is 0.3, and leaf height is 210mm, and on circumferential surface, long-pending superimposing thread adopts radius to be the circular arc of 435mm (be 1.45 with impeller outer diameter ratio), antecurvature 18 ° of angles; At circumferential surface, from blade root to 0.91 leaf high (191mm), employing radius is the circular arc of 582mm (be 1.94 with impeller outer diameter ratio), sweepforward 10 ° of angles, from 0.91 leaf high (191mm) to leaf top, employing radius is the sweepback circular arc of 33mm (be 0.11 with impeller outer diameter ratio).
Embodiment 5: impeller diameter is 630mm, and hub ratio is 0.32, and leaf height is 215mm, and on circumferential surface, long-pending superimposing thread adopts radius to be the circular arc of 466mm (be 1.48 with impeller outer diameter ratio), antecurvature 15 ° of angles; At circumferential surface, from blade root to 0.93 leaf high (200mm), employing radius is the circular arc of 605mm (be 1.92 with impeller outer diameter ratio), sweepforward 9 ° of angles, from 0.93 leaf high (200mm) to leaf top, employing radius is the sweepback circular arc of 28.35mm (be 0.09 with impeller outer diameter ratio).
As shown in Figure 7, motor 17 is supported by electric machine support 19 and is fixed in Fan casing 15, and impeller unit 16 of the present invention is connected with motor 17 by motor shaft 18 in installation and operation of the present invention.During operation, motor 17 connects power supply and runs, and rotates work done by motor shaft 18 impeller device 16.Different according to operating mode, the adjustable established angle angle of impeller 16 blade, with adaptation condition demand.
Fig. 8 is the experimental performance plotted curve of a blower fan using embodiment 2.
Fig. 9 is the experimental performance plotted curve of a blower fan using embodiment 3.
In Fig. 8, Fig. 9, LA is noise level, and unit is db; P is pressure, and unit is that Pa, Pt represent total head, and Ps represents static pressure; N represents power of fan, and unit is kw; η r is efficiency, and unit is %.
As can be seen from Fig. 8, Fig. 9, the efficiency of two blower fans is all considerably beyond the efficiency index of national equivalent standard, and noise also reduces 3-6 dB than equal blower fan.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. an impeller unit, comprise wheel hub and equally distributed multiple blade (1) on wheel hub, described blade (1) is made up of petiole (10) integrally and blade body (11), described wheel hub is made up of front-wheel hub (2) and trailing wheel hub (3), described front-wheel hub (2), trailing wheel hub (3) profile is disk, groove (6) before there is equally distributed petiole along front-wheel hub (2) excircle, along trailing wheel hub (3) excircle, there is the petiole pit (7) corresponding with groove (6) position before described petiole, described front-wheel hub (2) and trailing wheel hub (3) are connected to form a complete wheel hub by bolt part, before each petiole, groove (6) and corresponding petiole pit (7) form petiole groove, by the restriction of the petiole (10) of blade (1) within it, it is characterized in that:
Described petiole (10) is for having the cylindrical body of flange; The aerofoil profile (11-1) of described blade body (11) adopts C4 aerofoil profile, it is space three-dimensional curve that the center of gravity of blade body (11) amasss superimposing thread, its circumference is projected as circular arc (11-2), circular arc (11-2) radius is 1.38 ~ 1.5 with the ratio of impeller radius, circular arc (11-2) bends towards as sweepforward, and sweepforward angle is 15 ° ~ 20 °;
The axis projection that described center of gravity amasss superimposing thread is made up of with palintrope small arc-shaped (11-4) is tangent antecurvature orthodrome (11-3), points of tangency is at high 0.9 ~ 0.95 place of leaf, antecurvature orthodrome (11-3) radius is 1.90 ~ 1.95 with the ratio of impeller radius, antecurvature orthodrome (11-3) kyphotic angle is 8 ° ~ 10 °, and palintrope small arc-shaped (11-4) radius is 0.08 ~ 0.12 with the ratio of impeller radius;
Described front-wheel hub (2) disc surfaces has equally distributed bolt hole (8) close to excircle, disc centre has protruding coupling shaft (4), coupling shaft (4) has axial central through hole, is connected for same motor;
Described trailing wheel hub (3) disc surfaces has the nut counterbore (9) corresponding with described bolt hole (8) position close to excircle, and disc centre has the axis hole (5) matched with described coupling shaft (4).
2. impeller unit as claimed in claim 1, is characterized in that:
Described circular arc (11-2) radius is 1.45 ~ 1.48 with the ratio of impeller radius, and circular arc (11-2) bends towards as sweepforward, and sweepforward angle is 15 ° ~ 18 °;
Described antecurvature orthodrome (11-3) and palintrope small arc-shaped (11-4) points of tangency are at high 0.91 ~ 0.93 place of leaf, antecurvature orthodrome (11-3) radius is 1.92 ~ 1.94 with the ratio of impeller radius, antecurvature orthodrome (11-3) kyphotic angle is 8 ° ~ 10 °, and palintrope small arc-shaped (11-4) radius is 0.09 ~ 0.11 with the ratio of impeller radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040990.7A CN103115021B (en) | 2013-02-01 | 2013-02-01 | Vane wheel device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310040990.7A CN103115021B (en) | 2013-02-01 | 2013-02-01 | Vane wheel device |
Publications (2)
| Publication Number | Publication Date |
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| CN103115021A CN103115021A (en) | 2013-05-22 |
| CN103115021B true CN103115021B (en) | 2015-03-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310040990.7A Expired - Fee Related CN103115021B (en) | 2013-02-01 | 2013-02-01 | Vane wheel device |
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| CN (1) | CN103115021B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104669544A (en) * | 2013-12-02 | 2015-06-03 | 苏州市吴中区临湖俊峰机械厂 | Rotary impeller moulding plastic rubber mould |
| CN105888963A (en) * | 2016-04-07 | 2016-08-24 | 扬州大学 | Low-wind-speed wind turbine blade |
| CN106168228A (en) * | 2016-08-17 | 2016-11-30 | 江苏兆胜空调有限公司 | A kind of high-efficient low-noise axial wheel |
| CN106168227A (en) * | 2016-08-17 | 2016-11-30 | 江苏兆胜空调有限公司 | A kind of extruded hollow aluminium section bar airfoil vanes impeller |
| CN107131153B (en) * | 2017-07-12 | 2023-11-07 | 成都华川电装有限责任公司 | Axial flow fan |
| CN107237777B (en) * | 2017-08-01 | 2023-10-27 | 中国农业大学 | Agricultural ventilator sweep blade and design method thereof |
| CN107355426A (en) * | 2017-08-16 | 2017-11-17 | 江苏中联风能机械股份有限公司 | A kind of super low noise bumps biomimetic type subway tunnel propeller fan movable vane piece |
| TWI747203B (en) * | 2020-03-19 | 2021-11-21 | 肯尼實業有限公司 | Fan wheel structure of exercise bicycle |
| CN112814943A (en) * | 2021-02-03 | 2021-05-18 | 西安重装韩城煤矿机械有限公司 | Integrally formed curved and swept combined blade, impeller and axial flow fan |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU593670B2 (en) * | 1986-07-31 | 1990-02-15 | Mikado Propeller Co., Ltd. | A screw propeller boss cap with fins |
| JP3368537B1 (en) * | 2001-11-08 | 2003-01-20 | 学校法人東海大学 | Straight wing type windmill |
| CN1421615A (en) * | 2001-11-27 | 2003-06-04 | 北京森博苑科技有限公司 | Axial flow fan vane wheel with forward bent and twisted contour |
| CN2767723Y (en) * | 2005-01-14 | 2006-03-29 | 威海克莱特菲尔风机有限公司 | Axial flow fan having hyperboloidal sweepforward blade with knifes on surface |
| CN101634311A (en) * | 2008-07-23 | 2010-01-27 | 江苏富丽华通用设备有限公司 | Impeller |
| CN102367807A (en) * | 2011-09-14 | 2012-03-07 | 大连汇通科技发展有限公司 | Impeller of fan |
| CN202326408U (en) * | 2011-11-29 | 2012-07-11 | 冀东日彰节能风机制造有限公司 | Efficient centrifugal ventilator blade structure |
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2013
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