CN101285479A - Through-flow double channel blower fan - Google Patents
Through-flow double channel blower fan Download PDFInfo
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- CN101285479A CN101285479A CN 200810016262 CN200810016262A CN101285479A CN 101285479 A CN101285479 A CN 101285479A CN 200810016262 CN200810016262 CN 200810016262 CN 200810016262 A CN200810016262 A CN 200810016262A CN 101285479 A CN101285479 A CN 101285479A
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- exhaust outlet
- dividing plate
- wind
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- blade
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Abstract
The invention provides a cross flow two-channel blower which comprises a spiral casing provided with a wind inlet, a wind outlet and an impeller assembly; the invention is characterized in that a cross section and an outer port of the wind outlet are of parallelograms; the wind outlet is inside provided with three clapboards for dividing a wind channel into an upper wind channel and a lower wind channel with two adjustable longitudinal sections; the cross section of each wind channel is a parallelogram; the wind channel positioned on the upper part is blocked with a cambered sieve vertical to the wind channel; the sieve is positioned in the middle of the wind channel; the arc length of the sieve is 1/2 to 2/3 of the width of the wind channel; the circle center of the sieve is positioned on one side of the sieve near the outer end of the wind outlet; the upper end of the sieve is fixedly connected with the first clapboard; two sides of the sieve wind on a guide pole vertical to the first clapboard; the lower end of the sieve is inserted into a cambered groove on the second clapboard arranged for the sieve; and the lengths of the three clapboards are less than the distance between the outer end of the wind outlet and an volute angle of the wind outlet. The blower can adjust the wind speed and wind pressure of the two wind channel outlets and has uniform airflow distribution and good working performance.
Description
Technical field
The invention provides a kind of through-flow double channel blower fan, be used for cleaner-grader tool technical field.
Background technique
Existing blower fan is mainly by the spiral case and the impeller assembly of intake grill, exhaust outlet, wherein the impeller assembly is by forming with flange plate, rotating shaft and a plurality of straight blade of side plate binding, a plurality of straight blades are fixedly connected on the fan shaft by certain spacing, and the effect of flange plate is fixedly to be that impeller assembly and spiral case are linked.Its working procedure, blower fan is under motor driving, the drives impeller assembly rotates in spiral case, gas is sucked by the two ends of impeller assembly, force the gas rotation by blade, gas is done work, its energy is increased, gas throws away around rotating shaft under action of centrifugal force, can convert speed to the pressure energy by spiral case, after the gas in the impeller assembly is discharged, its pressure is lower than the air intake pipe internal pressure, and new gas is the intake impeller assembly under action of pressure, and gas is just constantly discharged in blower fan continuously.The subject matter that exists is: the wind speed of exhaust outlet is non-adjustable, and wind speed is inhomogeneous, and because existing blower fan only is provided with an exhaust outlet, so can not realize the classification selection by winnowing, its service behaviour needs further improvement.
Summary of the invention
The purpose of this invention is to provide the through-flow double channel blower fan that a kind of wind speed that can overcome above-mentioned defective, exhaust outlet is evenly adjustable, can realize classification selection by winnowing, excellent working performance.Its technological scheme is:
Comprise and be provided with intake grill, the spiral case of exhaust outlet and impeller assembly, wherein the impeller assembly comprises that bearing runs through rotating shaft that is installed on the spiral case and a plurality of blades that together rotate with rotating shaft, it is characterized in that: the equal parallelogram of the cross section of exhaust outlet and external port, the base plate and the level that constitute exhaust outlet are 20～30 degree angles, outer end from exhaust outlet inwardly is provided with three dividing plates respectively, wherein fixedly connected with the outer end of the top board that constitutes exhaust outlet in the outer end of first dividing plate, and be 16～20 degree angles with the top board of exhaust outlet, second dividing plate is positioned at first, between the 3rd dividing plate, and it is parallel with first dividing plate, the 3rd dividing plate is parallel to the base plate that constitutes exhaust outlet, and its probe into exhaust outlet the inner of the inner and second dividing plate fixedly connected, the side plate of pressing close to exhaust outlet is set up joining plate and is connected in second, between the 3rd dividing plate, corresponding with it, be provided with the guide plate of tape guide groove away from a side of joining plate at the side plate of exhaust outlet, bolt passes the side plate and the joining plate of exhaust outlet successively from guiding groove, at first dividing plate, be provided with curved screen in the air channel that the side plate of second dividing plate and exhaust outlet constitutes perpendicular to the air channel, screen cloth is positioned at the centre in this air channel, its arc length is 1/2～2/3 of this air channel width, the center of circle of screen cloth is positioned at the side of screen cloth near the exhaust outlet outer end, its dual-side is wound on the guide pillar perpendicular to first dividing plate, one end of guide pillar is fixedlyed connected with first dividing plate, the lower end of the other end and screen cloth is inserted in the curve bath that second dividing plate is the screen cloth setting, press close to the center of screen cloth arc length and be positioned at screen cloth and be provided with the middle guide pillar that is parallel to guide pillar near a side of exhaust outlet outer end, one end of middle guide pillar is fixedlyed connected with first dividing plate, the other end is inserted in the curve bath, fixedly connected with first dividing plate in the upper end of screen cloth, the length of above-mentioned three dividing plates is all less than the outer end of the exhaust outlet distance to the exhaust outlet volute angle.
Described through-flow double channel blower fan, blade is circular-arc perpendicular to the cross section of rotating shaft, a plurality of blade rings around the shaft, its two ends are by the fixedly connected tubular that is of circular endless belt, 1～the 10mm apart of the outer rim of circular endless belt and spiral case inwall, uniform porose supporting disk is fixed in the rotating shaft through the cone-shaped flange suit, and fixedly connected with the middle part of each blade, corresponding to each blade, the angle that tangent line and this blade the tangent line at above-mentioned tie point place of supporting disk at the tie point place of this blade and supporting disk outer rim is 135～165 degree, the angle that tangent line and this blade the tangent line at above-mentioned tie point place of supporting disk at the tie point place of this blade and supporting disk inner edge is 60～80 degree.
Described through-flow double channel blower fan, the arc length scope 65mm～100mm of each blade, chord length scope 50mm～95mm.
Described through-flow double channel blower fan, the hole on the supporting disk are distributed on two different circumference of diameter around the shaft.
Its working principle is: motor rotates through rotating shaft impeller assembly, gas enters impeller assembly inside from the impeller assembly two ends of tubular, because the angle of a plurality of blades is arranged, impeller assembly when rotation air-flow portion within it forms eccentric vortex, make the inside and outside generation pressure difference of spiral case, air-flow is discharged from two air channels.
The present invention compared with prior art has following advantage:
1, owing to three dividing plates inwardly are set respectively, the air channel is divided into two air channels up and down from the outer end of exhaust outlet, and the adjustable size in two air channels, the wind speed and the blast of two ducting outlets up and down so just can be regulated;
2, the vertical cross-section in each air channel is consistent all the time, guarantees each ducting outlet air-flow distribution uniform vertically;
3, the air channel on be positioned at is provided with the screen cloth perpendicular to the air channel, and the center of circle of screen cloth is positioned at screen cloth near a side of exhaust outlet outer end, can guarantee further that this ducting outlet general mood flows distribution uniform vertically.
Description of drawings
Fig. 1 is the utility model embodiment's a structural representation;
Fig. 2 is an A-A sectional view embodiment illustrated in fig. 1;
Fig. 3 is that B embodiment illustrated in fig. 2 is to view;
Fig. 4 is a C-C sectional view embodiment illustrated in fig. 2.
Among the figure: 1, spiral case 2, blade 3, supporting disk 4, hole 5, cone-shaped flange 6, rotating shaft 7, circular endless belt 8, intake grill 9, key 10, base plate 11, top board 12, side plate 13, dividing plate 14, bolt 15, guiding groove 16, guide plate 17, guide pillar 18, screen cloth 19, curve bath 20, joining plate 21, middle guide pillar
Embodiment
In the embodiment shown in Fig. 1-4: comprise being provided with intake grill 8, the spiral case 1 of exhaust outlet and impeller assembly, wherein the cross section of exhaust outlet and external port all are square, the base plate 10 that constitutes exhaust outlet is 25 degree angles with level, outer end from exhaust outlet inwardly is provided with three dividing plates 13 respectively, wherein fixedly connected with the outer end of the top board 11 that constitutes exhaust outlet in the outer end of first dividing plate 13, and be 18 degree with top board 11 angles of exhaust outlet, second dividing plate 13 is positioned at first, between the 3rd dividing plate 13, and it is parallel with first dividing plate 13, the 3rd dividing plate 13 is parallel to the base plate 10 that constitutes exhaust outlet, and its probe into exhaust outlet the inner of the inner and second dividing plate 13 fixedly connected, the side plate 12 of pressing close to exhaust outlet is set up joining plate 20 and is connected in second, between the 3rd dividing plate 13, corresponding with it, be provided with the guide plate 16 of tape guide groove 15 away from a side of joining plate 20 at the side plate 12 of exhaust outlet, bolt 14 passes the side plate 12 and the joining plate 20 of exhaust outlet successively from guiding groove 15, at first dividing plate 13, be provided with curved screen 18 in the air channel that the side plate 12 of second dividing plate 13 and exhaust outlet constitutes perpendicular to the air channel, screen cloth 18 is positioned at the centre in this air channel, its arc length is 1/2 of this air channel width, the center of circle of screen cloth 18 is positioned at the side of screen cloth 18 near the exhaust outlet outer end, its dual-side is wound on the guide pillar 17 perpendicular to first dividing plate 13, one end of guide pillar 17 is fixedlyed connected with first dividing plate 13, the lower end of the other end and screen cloth 18 is inserted in the curve bath 19 of second dividing plate 13 for screen cloth 18 settings, press close to the center of screen cloth 18 arc length and be positioned at screen cloth 18 and be provided with the middle guide pillar 21 that is parallel to guide pillar 17 near a side of exhaust outlet outer ends, one end of middle guide pillar 21 is fixedlyed connected with first dividing plate 13, the other end is inserted in the curve bath 15, fixedly connected with first dividing plate 13 in the upper end of screen cloth 18, to guarantee that second dividing plate 13 can be parallel to first dividing plate 13 and move, reach change and be positioned at the long-pending purpose of top duct cross-section.The length of above-mentioned three dividing plates 13 is all less than the outer end of the exhaust outlet distance to the exhaust outlet volute angle.The impeller assembly comprises that bearing runs through rotating shaft 6 that is installed on the spiral case 1 and a plurality of blades 2 that together rotate with rotating shaft 6, the arc length 65mm of each blade 2, chord length 75mm, its cross section perpendicular to rotating shaft 6 is circular-arc, a plurality of blade 2 twisted rotary shafts 6, its two ends are by the circular endless belt 7 fixedly connected tubulars that are, the outer rim of circular endless belt 7 and spiral case 1 inwall are at a distance of 2mm, supporting disk 3 is fixed in the rotating shaft 6 through cone-shaped flange 5 suits, and fixedly connected with the medium position of each blade 2, blade 2 is played the effect of support fixation, supporting disk 3 is provided with a plurality of holes 4, a plurality of holes 4 are distributed on the different circumference of two diameters of twisted rotary shaft 2, at each blade 2, the angles that tangent line and this blade 2 the tangent line at above-mentioned tie point place of supporting disk 3 at the tie point place of this blade 2 and supporting disk 3 outer rims is 155 degree, the angles that tangent line and this blade 2 the tangent line at above-mentioned tie point place of supporting disk 3 at the tie point place of this blade 2 and supporting disk 3 inner edges is 75 degree.
Claims (4)
1, a kind of through-flow double channel blower fan, comprise and be provided with intake grill (8), spiral case of exhaust outlet (1) and impeller assembly, wherein the impeller assembly comprises that bearing runs through rotating shaft (6) that is installed on the spiral case (1) and a plurality of blades (2) that together rotate with rotating shaft (6), it is characterized in that: the equal parallelogram of the cross section of exhaust outlet and external port, the base plate (10) that constitutes exhaust outlet is 20～30 degree angles with level, outer end from exhaust outlet inwardly is provided with three dividing plates (13) respectively, wherein fixedly connected with the outer end of the top board (11) that constitutes exhaust outlet in the outer end of first dividing plate (13), and be 16～20 degree angles with the top board (11) of exhaust outlet, second dividing plate (13) is positioned at first, between the 3rd dividing plate (13), and it is parallel with first dividing plate (13), the 3rd dividing plate (13) is parallel to the base plate (10) that constitutes exhaust outlet, and its probe into exhaust outlet the inner of the inner and second dividing plate (13) fixedly connected, the side plate (12) of pressing close to exhaust outlet is set up joining plate (20) and is connected in second, between the 3rd dividing plate (13), corresponding with it, be provided with the guide plate (16) of tape guide groove (15) away from a side of joining plate (20) at the side plate (12) of exhaust outlet, bolt (14) passes the side plate (12) and the joining plate (20) of exhaust outlet successively from guiding groove (15), at first dividing plate (13), be provided with curved screen (18) in the air channel that the side plate (12) of second dividing plate (13) and exhaust outlet constitutes perpendicular to the air channel, screen cloth (18) is positioned at the centre in this air channel, its arc length is 1/2～2/3 of this air channel width, the center of circle of screen cloth (18) is positioned at the side of screen cloth (18) near the exhaust outlet outer end, its dual-side is wound on the guide pillar (17) perpendicular to first dividing plate (13), one end of guide pillar (17) is fixedlyed connected with first dividing plate (13), the lower end of the other end and screen cloth (18) is inserted in the curve bath (19) of second dividing plate (13) for screen cloth (18) setting, press close to the center of screen cloth (18) arc length and be positioned at screen cloth (18) and be provided with the middle guide pillar (21) that is parallel to guide pillar (17) near a side of exhaust outlet outer end, one end of middle guide pillar (21) is fixedlyed connected with first dividing plate (13), the other end is inserted in the curve bath (19), fixedly connected with first dividing plate (13) in the upper end of screen cloth (18), the length of above-mentioned three dividing plates (13) is all less than the outer end of the exhaust outlet distance to the exhaust outlet volute angle.
2, through-flow double channel blower fan as claimed in claim 1, it is characterized in that: blade (2) is circular-arc perpendicular to the cross section of rotating shaft (6), a plurality of blades (2) twisted rotary shafts (6), its two ends are by the fixedly connected tubular that is of circular endless belt (7), 1～the 10mm apart of the outer rim of circular endless belt (7) and spiral case (1) inwall, the supporting disk of uniform porose (4) (3) is fixed in the rotating shaft (6) through cone-shaped flange (5) suit, and fixedly connected with the middle part of each blade (2), corresponding to each blade (2), the angles that tangent line and this blade (2) the tangent line at above-mentioned tie point place of supporting disk (3) at the tie point place of this blade (2) and supporting disk (3) outer rim is 135～165 degree, the angles that tangent line and this blade (2) the tangent line at above-mentioned tie point place of supporting disk (3) at the tie point place of this blade (2) and supporting disk (3) inner edge is 60～80 degree.
3, through-flow double channel blower fan as claimed in claim 1 is characterized in that: the arc length scope 65mm～100mm of each blade (2), chord length scope 50mm～95mm.
4, through-flow double channel blower fan as claimed in claim 1 is characterized in that: the hole (4) on the supporting disk (3) is distributed on around the shaft on two different circumference of (6) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810016262 CN101285479B (en) | 2008-05-23 | 2008-05-23 | Through-flow double channel blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810016262 CN101285479B (en) | 2008-05-23 | 2008-05-23 | Through-flow double channel blower fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101285479A true CN101285479A (en) | 2008-10-15 |
| CN101285479B CN101285479B (en) | 2013-04-10 |
Family
ID=40057838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810016262 Expired - Fee Related CN101285479B (en) | 2008-05-23 | 2008-05-23 | Through-flow double channel blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101285479B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691868B (en) * | 2009-08-25 | 2011-08-24 | 山东理工大学 | Bi-channel fan |
| CN104473450A (en) * | 2014-11-30 | 2015-04-01 | 韦峰 | Double-circulating air duct and shoe cabinet |
| CN105351218A (en) * | 2015-12-24 | 2016-02-24 | 清华大学 | Centrifugal compressor provided with adjustable double-outlet volute |
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
| CN108591094A (en) * | 2018-05-07 | 2018-09-28 | 江苏大学 | A kind of double vortex cleaning fans of the top formula of radial direction |
| CN114876834A (en) * | 2022-05-30 | 2022-08-09 | 贝德凯利电气(苏州)有限公司 | Double-runner disc type fan |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3236154C2 (en) * | 1982-09-29 | 1985-06-13 | Siemens AG, 1000 Berlin und 8000 München | Centrifugal fan |
| CN1289827C (en) * | 2002-04-15 | 2006-12-13 | 乐金电子(天津)电器有限公司 | Cross flow fan |
| CN1189665C (en) * | 2002-05-23 | 2005-02-16 | 上海交通大学 | Dual-flow ventilator |
| TWI262991B (en) * | 2004-08-02 | 2006-10-01 | Sunonwealth Electr Mach Ind Co | Centrifugal blower having auxiliary radial inlets |
-
2008
- 2008-05-23 CN CN 200810016262 patent/CN101285479B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101691868B (en) * | 2009-08-25 | 2011-08-24 | 山东理工大学 | Bi-channel fan |
| CN104473450A (en) * | 2014-11-30 | 2015-04-01 | 韦峰 | Double-circulating air duct and shoe cabinet |
| CN105351218A (en) * | 2015-12-24 | 2016-02-24 | 清华大学 | Centrifugal compressor provided with adjustable double-outlet volute |
| CN107014444A (en) * | 2017-05-27 | 2017-08-04 | 山东罗泰风机有限公司 | A kind of blower fan dynamic performance parameter measuring system |
| CN107014444B (en) * | 2017-05-27 | 2023-08-29 | 山东罗泰风机有限公司 | Fan dynamic performance parameter measurement system |
| CN108591094A (en) * | 2018-05-07 | 2018-09-28 | 江苏大学 | A kind of double vortex cleaning fans of the top formula of radial direction |
| CN114876834A (en) * | 2022-05-30 | 2022-08-09 | 贝德凯利电气(苏州)有限公司 | Double-runner disc type fan |
| CN114876834B (en) * | 2022-05-30 | 2023-10-31 | 贝德凯利电气(苏州)有限公司 | Double-runner disc type fan |
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| Publication number | Publication date |
|---|---|
| CN101285479B (en) | 2013-04-10 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20140523 |