CN101871471B - Hub of axial flow fan - Google Patents
Hub of axial flow fan Download PDFInfo
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- CN101871471B CN101871471B CN2010102163467A CN201010216346A CN101871471B CN 101871471 B CN101871471 B CN 101871471B CN 2010102163467 A CN2010102163467 A CN 2010102163467A CN 201010216346 A CN201010216346 A CN 201010216346A CN 101871471 B CN101871471 B CN 101871471B
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- petiole
- wheel hub
- anchor ear
- stationary plane
- fan blade
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Abstract
The invention discloses a hub of an axial flow fan, which comprises two hub discs which are fixedly connected with each other; each hub disc is provided with a circle of fixed faces; a plurality of leaf stalk hoops are arranged between the fixed faces; the fixed faces are provided with annular normal positioning grooves; normal positioning ridges are arranged at corresponding positions on the faces, connected with the fixed faces, of the leaf stalk hoops; the normal positioning grooves are matched with the normal positioning ridges; the fixed faces are provided with a plurality of radial positioning grooves respectively; the extended lines of the radial positioning grooves meet at the axle centers of the hub discs; radial positioning ridges are arranged at corresponding positions on the faces, connected with the fixed faces, of the leaf stalk hoops; the radial positioning grooves are matched with the radial positioning ridges; suppose the number of the fan blades is N, N is more than or equal to 2; each radial positioning groove comprises a reference radial positioning groove and N-1 sub radial positioning grooves; and the radial positioning grooves are distributed circumferentially and uniformly along the fixed faces of the hub discs. When the hub of the axial flow fan of the invention is used, the combination and assembly of a fan impellor having different numbers of fan blades are convenient.
Description
Technical field
The present invention relates to a kind of parts of axial-flow blower, relate to a kind of wheel hub of axial-flow blower in particular.
Background technique
The impeller of traditional axial-flow blower generally includes several fan blades and wheel hub, fan blade is fastened on the outer circumferential face of wheel hub by welding or bolt, the impeller assembly process more complicated of this form, and in a single day fan blade be fixed on the wheel hub its angle of back and can not transfer again now progressively is eliminated.Chinese invention patent (is authorized publication number: the wheel hub that CN 201206565Y) discloses a kind of cooling blower, it comprises wheel hub plate and wheel hub axle sleeve, wheel hub plate comprises last wheel hub plate and the lower whorl hub that is connected mutually, wheel hub plate is provided with at least three petiole mounting holes, the petiole mounting hole extends to the wheel hub plate axis direction from the side face of wheel hub plate, during the draught fan impeller assembling, the petiole of fan blade is installed in the petiole mounting hole, and upper and lower wheel hub plate is fixed the assembling that can finish draught fan impeller.Though it is more convenient to adopt the wheel hub of this form to assemble, the angle of fan blade can be regulated, but the fan blade fixed amount of its assembling is constant, the vicissitudinous words of fan blade quantity as draught fan impeller, need die sinking again to make wheel hub, more because of the model of axial-flow blower, the fan blade quantity of various axial-flow blowers also is not quite similar, cause blower fan manufacturing firm to need all need have hub mold to the axial-flow blower of every kind of model, the cost that causes wheel hub to make increases greatly.
Summary of the invention
For overcoming above-mentioned defective, the present invention aim to provide a kind of can be convenient for assembly, again to the draught fan impeller of multiple fan blade number all can be general the axial-flow blower wheel hub.
For achieving the above object, the technical solution used in the present invention is: a kind of wheel hub of axial-flow blower, comprise two wheel hub plate that are connected mutually, the axle center of described wheel hub plate is provided with the axle sleeve mounting hole, the close outer circumference end of described wheel hub plate is provided with a circle stationary plane, be provided with several petiole anchor ears between the described stationary plane, it is that the ring method in the center of circle is to locating slot that described stationary plane is provided with axle center with wheel hub plate, the junction surface corresponding position of described petiole anchor ear and stationary plane is provided with the normal direction positioning edge, described normal direction locating slot and normal direction positioning edge are complementary, described petiole anchor ear comprises petiole anchor ear and following petiole anchor ear, is respectively equipped with the petiole attachment face of semicircle shape on the junction plane of described upward petiole anchor ear and following petiole anchor ear.
Also be provided with several radial detents on the described stationary plane, the elongation line of described radial detents intersects at the axle center of wheel hub plate, the junction surface corresponding position of described petiole anchor ear and stationary plane is provided with the radial location rib, described radial detents and radial location rib are complementary, if the quantity of fan blade is N, N 〉=2, described radial detents comprises a benchmark radial detents and M branch radial detents, M=N-1, described radial detents is circularly and evenly distributed along the stationary plane of wheel hub plate.
The quantity N=2-20 of described fan blade.
Described minute radial detents is marked with fan blade and counts label, and it is relevant with the quantity N of fan blade that described fan blade is counted label.
Also be provided with several edge sealing pieces on the described stationary plane, described edge sealing piece places between adjacent two petiole anchor ears, and the junction surface corresponding position of described edge sealing piece and stationary plane is provided with edge sealing piece positioning edge, and described edge sealing piece positioning edge and normal direction locating slot are complementary.
Adopted axial-flow blower wheel hub of the present invention, during assembling, at first in the normal direction locating slot on the insertion of the normal direction positioning edge on the petiole anchor ear stationary plane petiole anchor ear being carried out the normal direction location, the petiole anchor ear is fixed on the stationary plane of wheel hub plate behind the location by the conduct that fits into of radial detents on its radial location rib and the stationary plane then; At last the petiole of fan blade is placed in the petiole attachment face,, petiole is firmly embraced by two semicircle shape petiole attachment faces of upper and lower petiole anchor ear, easily realize the assembling of impeller assembly by fastening two wheel hub plate.Great advantage of the present invention is can be easily the draught fan impeller of different fan blade numbers to be carried out combine and assemble, and fan blade is along the accurate positioning of wheel hub plate circumferencial direction.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of wheel hub plate;
Fig. 3 is the structural representation of petiole anchor ear;
Fig. 4 is the structural representation of edge sealing piece;
Fig. 5 is a surface structure schematic representation of the present invention;
Fig. 6 is a fan blade fixed structure schematic representation.
Among the figure: 1-wheel hub plate, 2-axle sleeve mounting hole, 3-stationary plane, 4-petiole anchor ear, 5-normal direction locating slot, 6-normal direction positioning edge, 7-radial detents, 8-radial location rib, 9-edge sealing piece, 10-edge sealing piece positioning edge, the last petiole anchor ear of 11-, petiole anchor ear under the 12-, 13-junction plane, 14-petiole attachment face, 15-benchmark radial detents, 16-divides radial detents, and the 17-fan blade is counted label, the 18-fan blade, 19-petiole, 20-bolt.
Embodiment
As shown in Figure 1, the invention discloses a kind of wheel hub of axial-flow blower, comprise two wheel hub plate 1 that are connected mutually, the axle center of described wheel hub plate 1 is provided with axle sleeve mounting hole 2, the close outer circumference end of described wheel hub plate 1 is provided with a circle stationary plane 3, during assembling, the stationary plane 3 of two wheel hub plate 1 is fixed in opposite directions, in sum, with the wheel hub basically identical of the axial-flow blower of prior art.
As shown in Figure 1-Figure 3, innovative point of the present invention mainly is to be provided with between the described stationary plane 3 several petiole anchor ears 4, it is that the ring method in the center of circle is to locating slot 5 that described stationary plane 3 is provided with axle center with wheel hub plate 1, described petiole anchor ear 4 is provided with normal direction positioning edge 6 with the junction surface corresponding position of stationary plane 3, described normal direction locating slot 5 is complementary with normal direction positioning edge 6, described petiole anchor ear 4 comprises petiole anchor ear 11 and following petiole anchor ear 12, is respectively equipped with the petiole attachment face 14 of semicircle shape on the junction plane 13 of described upward petiole anchor ear 11 and following petiole anchor ear 12.
During assembling, earlier separately two wheel hub plate 1, in the normal direction locating slot 5 on the 5 insertion stationary planes 3 of the normal direction positioning edge on the petiole anchor ear 4, like this, petiole anchor ear 4 just has been positioned on the normal orientation of wheel hub plate 1, the back, location is fixed on petiole anchor ear 4 on the wheel hub plate 1, required fan blade 18 quantity of the quantity of petiole anchor ear 4 and draught fan impeller are identical, usually the fan blade 18 of draught fan impeller is along equally distributed on the circumference of wheel hub plate 1, so petiole anchor ear 4 also needs along evenly distributing on the circumference of wheel hub plate 1.Because petiole anchor ear 4 is divided into petiole anchor ear 11 and following petiole anchor ear 12, so when concrete assembling, as shown in Figure 6, last petiole anchor ear 11 and following petiole anchor ear 12 are separately fixed on two wheel hub plate 1, then the petiole 19 of fan blade 18 is placed in the petiole attachment face 14, by the cylindric petiole attachment face 14 that the petiole attachment face 14 of two semicircle shapes of last petiole anchor ear 11 and following petiole anchor ear 12 is formed petiole 14 is embraced, by bolt 20 fastening two wheel hub plate 1, thereby petiole 14 is firmly embraced in petiole attachment face 14 and fixed.
For make petiole anchor ear 4 and along between the wheel hub plate 1 in the radial direction location, also be provided with several radial detents 7 on the described stationary plane 3, the elongation line of described radial detents 7 intersects at the axle center of wheel hub plate 1, described petiole anchor ear 4 is provided with radial location rib 8 with the junction surface corresponding position of stationary plane 3, described radial detents 7 is complementary with radial location rib 8, if the quantity of fan blade 18 is N, N 〉=2, described radial detents 7 comprises a benchmark radial detents 15 and M branch radial detents 16, M=N-1, described radial detents 7 is circularly and evenly distributed along the stationary plane 3 of wheel hub plate 1.Like this, divide between radial detents 16 and the benchmark radial detents 15 with an angle β=306 to spend ÷ N or its integral multiples of 2 to M.
During concrete the assembling, when inserting the normal direction positioning edge on the petiole anchor ear 45 in the normal direction locating slot 5 on the stationary planes 3, radial location rib 8 on the petiole anchor ear 4 is also inserted in the radial detents 7 of relevant position on the stationary plane 3, like this, petiole anchor ear 4 not only is positioned in wheel hub plate 1 normal orientation, also has been positioned in wheel hub plate 1 radial direction.
The quantity N=2-20 of described fan blade 18.In actual applications, the quantity N of the fan blade 18 of axial-flow blower is generally the 2-12 sheet, wherein 7 and 11 are because carry out measuring when uniform the angle inconvenience on wheel hub plate, usually do not adopt, below the relation between nine kinds of fan blades commonly used, 18 number N and angle beta and the branch radial detents 16 number M enumerated:
From above table, as can be seen, when N=6 and 12, wherein there is the angle between a branch radial detents 16 and the benchmark radial detents 15 to be β=60 degree, so when N=6 and 12, wherein have a branch radial detents 16 to overlap; In like manner, can also draw, wherein have the angle between a branch radial detents 16 and the benchmark radial detents 15 to be β=120 degree, so, wherein have a branch radial detents 16 to overlap as N=3,6,9,12 the time as N=3,6,9,12 the time.
The wheel hub plate of certain axial-flow blower of the present invention also is applicable to the impeller that fan blade 18 is counted greater than 12, and the distribution mode of its radial detents 7 is with noted earlier the same.Equally, when blower fan because of specific (special) requirements when must to adopt the quantity of fan blade 18 be 7 or 11, the distribution mode of its radial detents 7 is with noted earlier the same.
For the fan blade 18 number N that distinguish every branch radial detents 16 correspondences, described minute radial detents 16 is marked with fan blade and counts label 17, and it is relevant with the quantity N of fan blade 18 that described fan blade is counted label 17.Count N more for a long time when the fan blade 18 of minute radial detents 16 correspondences, fan blade is counted the minimum value of label 17 its N of mark in principle.As the angle between minute radial detents 16 and the benchmark radial detents 15 is that β=60 are when spending, its corresponding fan blade 18 number N can adopt 6 blades or 12 blades, target fan blade is counted label 17 for 6. on it, in like manner, as the angle between minute radial detents 16 and the benchmark radial detents 15 is that β=120 are when spending, its corresponding fan blade 18 number N can adopt 3,6,9,12 blades, target fan blade is counted label 17 for 3. on it, can certainly identify with other, conveniently discern fan blade 18 number N as long as can count label 17 by fan blade.
After fixing petiole anchor ear 4 on the wheel hub plate 1, have a space between the adjacent individual mutually petiole anchor ear 4, particularly count more after a little while when fan blade 18, this space is bigger, when blower fan turns round, vortex phenomenon can appear in the gap, influenced the performance of blower fan, for this reason, as shown in Figure 1 and Figure 4, also be provided with several edge sealing pieces 9 on the described stationary plane 3 of the wheel hub of axial-flow blower of the present invention, described edge sealing piece 9 places between adjacent two petiole anchor ears 4.
For edge sealing piece 9 is positioned in the normal direction of wheel hub plate 1, described edge sealing piece 9 is provided with edge sealing piece positioning edge 10 with the junction surface corresponding position of stationary plane 3, and described edge sealing piece positioning edge 10 is complementary with normal direction locating slot 5.During practical application, edge sealing piece 9 can be made circular standard edge sealing piece 9 material that are complementary with wheel hub plate 1 diameter in advance, after petiole anchor ear 4 is fixed on the wheel hub plate 1, intercepting and the edge sealing piece 9 of adjacent two petiole anchor ears 4 on standard edge sealing piece 9 material apart from equal length, as shown in Figure 5, in the normal direction locating slot 5 on the edge sealing piece positioning edge 10 insertion stationary planes 3, two ends of edge sealing piece 9 just are close to petiole anchor ear 4, and edge sealing piece 9 is filled out adjacent space between the petiole anchor ear 4 mutually.
Claims (4)
1. the wheel hub of an axial-flow blower, comprise two wheel hub plate (1) that are connected mutually, the axle center of described wheel hub plate (1) is provided with axle sleeve mounting hole (2), the close outer circumference end of described wheel hub plate (1) is provided with a circle stationary plane (3), it is characterized in that being provided with between the described stationary plane (3) several petiole anchor ears (4), it is that the ring method in the center of circle is to locating slot (5) that described stationary plane (3) is provided with axle center with wheel hub plate (1), described petiole anchor ear (4) is provided with normal direction positioning edge (6) with the junction surface corresponding position of stationary plane (3), described normal direction locating slot (5) is complementary with normal direction positioning edge (6), described petiole anchor ear (4) comprises petiole anchor ear (11) and following petiole anchor ear (12), be respectively equipped with the petiole attachment face (14) of semicircle shape on the junction plane (13) of described upward petiole anchor ear (11) and following petiole anchor ear (12), also be provided with several radial detents (7) on the described stationary plane (3), the elongation line of described radial detents (7) intersects at the axle center of wheel hub plate (1), described petiole anchor ear (4) is provided with radial location rib (8) with the junction surface corresponding position of stationary plane (3), described radial detents (7) is complementary with radial location rib (8), if the quantity of fan blade (18) is N, N 〉=2, described radial detents (7) comprises a benchmark radial detents (15) and M branch radial detents (16), M=N-1, described radial detents (7) is circularly and evenly distributed along the stationary plane (3) of wheel hub plate (1).
2. the wheel hub of axial-flow blower according to claim 1 is characterized in that the quantity N=2-20 of described fan blade (18).
3. the wheel hub of axial-flow blower according to claim 1, it is characterized in that described minute radial detents (16) be marked with fan blade and count label (17), it is relevant with the quantity N of fan blade (18) that described fan blade is counted label (17).
4. the wheel hub of axial-flow blower according to claim 1, it is characterized in that also being provided with on the described stationary plane (3) several edge sealing pieces (9), described edge sealing piece (9) places between adjacent two petiole anchor ears (4), described edge sealing piece (9) is provided with edge sealing piece positioning edge (10) with the junction surface corresponding position of stationary plane (3), and described edge sealing piece positioning edge (10) is complementary with normal direction locating slot (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102163467A CN101871471B (en) | 2010-07-01 | 2010-07-01 | Hub of axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102163467A CN101871471B (en) | 2010-07-01 | 2010-07-01 | Hub of axial flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101871471A CN101871471A (en) | 2010-10-27 |
| CN101871471B true CN101871471B (en) | 2011-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102163467A Active CN101871471B (en) | 2010-07-01 | 2010-07-01 | Hub of axial flow fan |
Country Status (1)
| Country | Link |
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| CN (1) | CN101871471B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107269581A (en) * | 2017-05-04 | 2017-10-20 | 浙江上风高科专风实业有限公司 | A kind of wheel hub of axial fan |
| CN107269582B (en) * | 2017-07-20 | 2020-08-11 | 天津中隧通风机有限公司 | Impeller hub of jet fan |
| CN112797024B (en) * | 2021-01-27 | 2022-04-22 | 江苏优格曼航空科技有限公司 | Axial flow fan impeller assembled in modularized split mode and assembling method thereof |
Citations (7)
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|---|---|---|---|---|
| CN2447545Y (en) * | 2000-10-14 | 2001-09-12 | 广东正野电器有限公司 | Combined axial-flow fan blade |
| CN201206565Y (en) * | 2008-04-28 | 2009-03-11 | 董明祥 | Wheel hub of cooling fan |
| CN201232660Y (en) * | 2008-07-30 | 2009-05-06 | 湘潭平安电气有限公司 | Impeller fixed device |
| CN201326572Y (en) * | 2008-11-13 | 2009-10-14 | 浙江明新风机有限公司 | Impeller of fan |
| CN101634311A (en) * | 2008-07-23 | 2010-01-27 | 江苏富丽华通用设备有限公司 | Impeller |
| CN201433936Y (en) * | 2009-05-28 | 2010-03-31 | 浙江双双制冷设备有限公司 | Leaf blade installing structure for novel axial flow blower |
| CN201771858U (en) * | 2010-07-01 | 2011-03-23 | 浙江双阳风机有限公司 | Hub of axial-flow fan |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0610889A (en) * | 1992-06-23 | 1994-01-21 | Nissan Motor Co Ltd | Cooling fan |
| US8176598B2 (en) * | 2009-08-03 | 2012-05-15 | General Electric Company | Locking spacer assembly for a circumferential dovetail rotor blade attachment system |
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2010
- 2010-07-01 CN CN2010102163467A patent/CN101871471B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2447545Y (en) * | 2000-10-14 | 2001-09-12 | 广东正野电器有限公司 | Combined axial-flow fan blade |
| CN201206565Y (en) * | 2008-04-28 | 2009-03-11 | 董明祥 | Wheel hub of cooling fan |
| CN101634311A (en) * | 2008-07-23 | 2010-01-27 | 江苏富丽华通用设备有限公司 | Impeller |
| CN201232660Y (en) * | 2008-07-30 | 2009-05-06 | 湘潭平安电气有限公司 | Impeller fixed device |
| CN201326572Y (en) * | 2008-11-13 | 2009-10-14 | 浙江明新风机有限公司 | Impeller of fan |
| CN201433936Y (en) * | 2009-05-28 | 2010-03-31 | 浙江双双制冷设备有限公司 | Leaf blade installing structure for novel axial flow blower |
| CN201771858U (en) * | 2010-07-01 | 2011-03-23 | 浙江双阳风机有限公司 | Hub of axial-flow fan |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平6-10889A 1994.01.21 |
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| Publication number | Publication date |
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| CN101871471A (en) | 2010-10-27 |
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