CN1532428A - Screw fan combined body - Google Patents
Screw fan combined body Download PDFInfo
- Publication number
- CN1532428A CN1532428A CNA031208797A CN03120879A CN1532428A CN 1532428 A CN1532428 A CN 1532428A CN A031208797 A CNA031208797 A CN A031208797A CN 03120879 A CN03120879 A CN 03120879A CN 1532428 A CN1532428 A CN 1532428A
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- fan
- spirality
- bandlet
- sheet
- axle
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Abstract
The spiral blowing fan assembly has rotation shaft combined to the motor for synchronous rotation; long cylindrical fan shaft combined to the rotation shaft; spiral blade on the surface of the fan shaft comprising one or several spiral flat bands in certain width; hollow encasing around the blade with one extending end in the air inlet of the blade and inside spiral wind guiding board. The present invention can obtain air flow characteristic with increased axial air output and air pressure in the case of not greatly increased blade width, less limitation in installing position and relatively small overall volume.
Description
Technical field
The present invention relates to the blowing fan field, particularly Screw fan.
Background technique
Usually, on the air interchanger in household appliances such as air cleaner or the factory installation all kinds of blowing fans are housed, so that carry out forced ventilation.This class blowing fan can be divided into axial flow type blowing fan and center of circle type blowing fan by the flow characteristic of air.
The axial flow type blowing fan is the blowing fan that the flow direction of air is parallel to running shaft.Though have but features of smaller of the big pressure of flow.
Usually, the air-flow direction at type blowing fan air inlet place, the center of circle is parallel with running shaft, but the rectangular radial direction of outlet port flow direction and running shaft.This center of circle type blowing fan major function is to utilize centrifugal force to increase blast.Therefore, though have the very big characteristics of the little blast of flow.
Therefore, in the facility that uses blowing fan, should consider the characteristic of various blowing fans, select blowing fan.Indoor set such as, air conditioner needs high blast, therefore adopts multiple-blade ring-type fan or turbine fan usually, if the indoor set that needs high air quantity is with regard to chosen axis flow pattern blowing fan.The ventilation equipment predominant use is to discharge a large amount of air in the short time, and employing can produce the axial flow type blowing fan of high air quantity usually.
But above-mentioned various blowing fans are difficult to increase simultaneously blast and air quantity.Therefore, when needing high air quantity and high blast simultaneously, can only increase its size.When if household appliances have above-mentioned the needs, the size increasing because of blowing fan makes entire product produce the problem that volume increases.
In addition, center of circle type blowing fan is except that the problems referred to above, and is different with inlet because of the outlet flow direction in addition, when the inner installation of facility, can be subjected to very big restriction on the position.
Summary of the invention
Technical problem to be solved by this invention is, a kind of Screw fan assemblying body is provided, and can produce high air quantity and high blast simultaneously with little volume under the situation with parallel to an axis of flowing of air.When the inner installation of facility, can not be subjected to severely restricts on the position.And, can dwindle the whole size of using the blowing fan facility.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: assemblying body comprises running shaft, fan axle, spirality fan sheet, fan sheet outer cover, spiral aviation baffle; The rotation that combines of running shaft and motor; The fan axle forms oval tubular, and is combined on the running shaft; Spirality fan sheet is on the surface of above-mentioned fan axle, and from the end to end formation of fan axle, spirality fan sheet is formed by the bandlet of helical twist by having certain width more than 1; Around spirality fan sheet, form the fan sheet outer cover of hollow; The fan sheet covers on the inflow entrance of air outward and fans the prolongation of the sheet one end outside to spirality, at the extending part outside spirality fan sheet one end of fan sheet outer cover, its inboard formation spiral aviation baffle; Spiral aviation baffle forms along the helical trajectory of above-mentioned bandlet extend outwards.
The width of described spiral aviation baffle is identical with the width of spirality fan sheet bandlet.
The Screw fan assemblying body comprises the running shaft that combines and rotate with motor; Form oval tubular, and be combined in the fan axle on the running shaft; On the surface of above-mentioned fan axle, fan sheet from the spirality that the end to end of fanning axle forms; Spirality fan sheet is formed by the bandlet of helical twist by having certain width more than 1; The fan sheet outer cover that around spirality fan sheet, forms; Fan sheet outer cover is designed so that the inflow entrance of air and outflow opening internal diameter are less than the intermediate portion internal diameter.
On the bandlet of described spirality fan sheet, form several through holes at regular intervals.
The bandlet of described spirality fan sheet is arranged the back at regular intervals continuously with several piece bandlet piece and is formed, and is formed with the gap between its each bandlet piece.
The Screw fan assemblying body comprises the running shaft that combines and rotate with motor; Form oval tubular, and be combined in the fan axle on the running shaft; On the surface of above-mentioned fan axle, fan sheet from the spirality that the end to end of fanning axle forms; Spirality fan sheet is formed by the bandlet of helical twist by having certain width more than 1, on the bandlet, forms several through holes at regular intervals; The fan sheet outer cover that around spirality fan sheet, forms.
The Screw fan assemblying body comprises the running shaft that combines and rotate with motor; Form oval tubular, and be combined in the fan axle on the running shaft; On the surface of above-mentioned fan axle, fan sheet from the spirality that the end to end of fanning axle forms; Spirality fan sheet is formed by the bandlet of helical twist by having certain width more than 1, and bandlet is arranged the back at regular intervals continuously with several piece bandlet piece and formed, and is formed with the gap between its each bandlet piece, the fan sheet outer cover that forms around spirality fan sheet.
The invention has the beneficial effects as follows: this invention can obtain the air-flow character of high air quantity and high blast under the situation that need not significantly increase fan sheet width.Because air-flow direction is axially, when installing on indoor equipmenies such as air cleaner, the restriction on the mounting point reduces, thereby can make the volume size reduction of entire equipment simultaneously.
In addition, during Screw fan assemblying body opposite spin provided by the invention, can obtain air quantity identical or suitable and blast, therefore can make the functional diversities of equipment with postive direction.
Description of drawings
Fig. 1 is air cleaner provided by the invention the 1st kind of embodiment's tectonic maps of Screw fan assemblying body.
Fig. 2 is air cleaner provided by the invention the 2nd kind of embodiment's tectonic maps of Screw fan assemblying body.
Fig. 3 is air cleaner provided by the invention the 3rd kind of embodiment's tectonic maps of Screw fan assemblying body.
Fig. 4 is air cleaner provided by the invention the 4th kind of embodiment's tectonic maps of Screw fan assemblying body.
In the drawings:
10,110,210,310: spirality fan sheet 11,111,211,311: running shaft
12,112,212,312: fan axle 13,113,213,313: bandlet
20,120,220,320: fan sheet outer cover 21: spiral aviation baffle
121: entrance part 122: export department
214: through hole 314: gap
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail: Fig. 1 is air cleaner provided by the invention Screw fan assemblying body the 1st embodiment's tectonic maps.This Screw fan assemblying body comprises running shaft 11, fan axle 12, spirality fan sheet 10, fan sheet outer cover 20.The rotation that combines of running shaft 11 and motor (not shown).Fan axle 12 forms long cylindrical shape and is combined on the running shaft 11.On the surface of above-mentioned fan axle 12, from the end to end formation spirality fan sheet 10 of fan axle 12.Spirality fan sheet 10 is made up of the bandlet 13 by helical twist.Around spirality fan sheet 10, form columnar fan sheet outer cover 20.
The bandlet 13 width direct-axis of above-mentioned spirality fan sheet 10 are advisable to identical.This width is defined as the distance from fan axle 12 surfaces to bandlet 13 outsides.
In addition, the length of fan sheet outer cover 20 is twice than the length of spirality fan sheet 10 fan axles 12, prolongs to the outside of spirality fan sheet 10 1 ends, thereby forms inflow entrance, can flow into air.The internal surface of these fan sheet outer cover 20 extending parts forms spiral aviation baffle 21.Spiral aviation baffle 21 has identical helical trajectory with spirality fan sheet 10 bandlets 13.Spiral aviation baffle 21 has continuity with the helical trajectory of spirality fan sheet 10 bandlets 13, and is close with bandlet 13 ends of spirality fan sheet 10.
In addition, necessarily the width with bandlet 13 is identical for aerofoil 21 width that are threaded to of above-mentioned fan sheet outer cover 20.But according to circumstances also can be designed to identical with the width of bandlet 13.
In addition, among the aforesaid embodiment, bandlet 13 numbers of spirality fan sheet 10 are 2.But also can only form 1 bandlet 13 and constitute spirality fan sheet 10.Also can form 3 above bandlets 13, arrange the back at regular intervals and constitute spirality fan sheet 10.
Also have spiral aviation baffle 21 numbers of fan sheet outer cover 20 and identical being advisable of bandlet 13 numbers of spirality fan sheet 10.But need not be necessarily identical, spiral aviation baffle 21 is arranged at regular intervals got final product as required.
Screw fan assemblying body action with said structure is as follows.
Running shaft 11 is by the rotation of decide direction under the effect of drive motor (not shown), and fan axle 12 that is attached thereto and bandlet 13 rotate together.At this moment, the rotating force of bandlet 13 makes air flow to by an end of fan sheet outer cover 20.
The air that flows to by fan sheet outer cover 20 1 ends produces the Hand of spiral motion under the effect of spiral aviation baffle 21, along bandlet 13 surfaces of spirality fan sheet 10 helical flow axially, discharge by the other end of fan sheet outer cover 20 at last afterwards.
At this moment, above-mentioned fan sheet outer cover 20 is centered around the outside of above-mentioned bandlet 13, therefore because of bandlet 13 rotation flow air can not break away to bandlet 13 outsides, but flows along the long distance in bandlet 13 surfaces, can obtain the effect of supercharging.
Simultaneously, the Screw fan assemblying body has following advantage.The air that flows to by fan sheet outer cover 20 1 ends arrives to have had before the spirality fan sheet 10 and rotatablely moves under the effect of spiral aviation baffle 21, therefore, can reduce the load of spirality fan sheet 10 bandlets 13.
And the equal and parallel to an axis of the entrance and exit flow direction of Screw fan assemblying body has the axial flow type characteristics, therefore has the wind pushing performance of high air quantity.
Fig. 2 is air cleaner provided by the invention Screw fan assemblying body the 2nd embodiment's tectonic maps.Being configured to of spirality fan sheet 110 on cylindrical shape fan axle 112 outer surfaces that combine with running shaft 111, forms 1 bandlet 113 by spirality.
Also have, the cylindrical shape fan sheet outer cover 120 of hollow forms around spirality fan sheet 110 outsides.Here, the air inflow aperture 121 and the air outflow port 122 of fan sheet outer cover 120 are narrower than the intermediate portion, have the advantage of boost pressure and flow.
In addition, Fig. 3, Fig. 4 are air cleaner provided by the invention Screw fan assemblying body the 3rd embodiments, the 4th embodiment's tectonic maps.Wherein, Screw fan assemblying body bandlet 213 shown in Figure 3 has following structure.On the bandlet 213 that forms by spirality on the fan axle 212, be formed with several through holes 214 at regular intervals.
The Screw fan assemblying body comprises the running shaft 211 that combines and rotate with motor; Form oval tubular, and be combined in the fan axle 212 on the running shaft; On the surface of fanning axle 212, fan sheet 210 from the spirality that the end to end of fanning axle forms; Spirality fan sheet 210 is formed by the bandlet 213 of helical twist by having certain width more than 1, on the bandlet 213, forms several through holes 214 at regular intervals; The fan sheet outer cover 220 that around above-mentioned spirality fan sheet 210, forms.
Screw fan assemblying body shown in Figure 4, the bandlet 313 that forms at fan axle 312 outer surfaces is not a bodily form.But be divided into polylith, arrange the back at regular intervals continuously and form bandlet 313.Be formed with gap 314 between its each piece.
The Screw fan assemblying body comprises the running shaft 311 that combines and rotate with motor; Form oval tubular, and be combined in the fan axle 312 on the running shaft; On the surface of above-mentioned fan axle 312, fan sheet 310 from the spirality that the end to end of fanning axle 312 forms; Spirality fan sheet 310 is by having certain width more than 1, bandlet 313 by helical twist is formed, bandlet 313 is arranged the back at regular intervals continuously with several piece bandlet piece and is formed, and is formed with the gap between its each bandlet piece, the fan sheet outer cover 320 that forms around spirality fan sheet 310.
Form through hole 214 on the aforesaid bandlet 213,313, or bandlet 313 is divided under the situation that several piece forms gap 314, can improves and flow and noise properties.Reason is as follows: during bandlet 213,313 rotations, the air that passes through from spirality fan sheet forms boundary layer along bandlet 213,313 surfaces.At this moment, this boundary layer is broken under the effect in through hole 214 and gap 314.
Outside the bandlet shape in the foregoing description, can also on bandlet, form protuberance or screw thread etc., the air-flow character when changing the bandlet rotation with this.
In addition, in the various embodiments described above, the structure of symmetry or near symmetrical up and down about the Screw fan assemblying body has.Therefore during the opposite spin of Screw fan assemblying body, can obtain air quantity identical or suitable and blast with postive direction.
Claims (7)
1. Screw fan assemblying body, it is characterized in that: the Screw fan assemblying body comprises running shaft (11), fan axle (12), spirality fan sheet (10), fan sheet outer cover (20), spiral aviation baffle (21); The rotation that combines of running shaft (11) and motor; Fan axle (12) forms oval tubular, and is combined on the running shaft (11); Spirality fan sheet (10) is on the surface of above-mentioned fan axle (12), and from the end to end formation of fan axle (12), spirality fan sheet (10) is formed by the bandlet (13) of helical twist by having certain width more than 1; Form the fan sheet outer cover (20) of hollow on every side around spirality fan sheet (10); Fan sheet outer cover (20) and fan the prolongation of sheet (10) the one ends outside to spirality, at the extending part outside spirality fan sheet (10) one ends of fan sheet outer cover (20), its inboard formation spiral aviation baffle (21) at the inflow entrance of air; Spiral aviation baffle (21) forms along the helical trajectory of bandlet (13) extend outwards.
2. Screw fan assemblying body according to claim 1 is characterized in that: the width of spiral aviation baffle (21) is identical with the width of spirality fan sheet bandlet (13).
3. Screw fan assemblying body is characterized in that: the Screw fan assemblying body comprises and the combine running shaft (111) of rotation of motor; Form oval tubular, and be combined in the fan axle (112) on the running shaft; On the surface of above-mentioned fan axle (112), fan sheet (110) from the spirality that the end to end of fanning axle (112) forms; Spirality fan sheet (110) is formed by the bandlet (113) of helical twist by having certain width more than 1; Fan the fan sheet outer cover (120) that sheet (111) forms on every side around spirality; Fan sheet outer cover (120) is designed so that the inflow entrance (121) of air and outflow opening (122) internal diameter are less than the intermediate portion internal diameter.
4. according to claim 1 or 3 described Screw fan assemblying bodys, it is characterized in that: on the bandlet (213) of spirality fan sheet (210), form several through holes at regular intervals.
5. according to claim 1 or 3 described Screw fan assemblying bodys, it is characterized in that: the bandlet (313) of spirality fan sheet (310), arrange the back at regular intervals continuously with several piece bandlet piece and form, be formed with the gap between its each bandlet piece.
6. Screw fan assemblying body is characterized in that: the Screw fan assemblying body comprises and the combine running shaft (211) of rotation of motor; Form oval tubular, and be combined in the fan axle (212) on the running shaft; On the surface of above-mentioned fan axle (212), fan sheet (210) from the spirality that the end to end of fanning axle (212) forms; Spirality fan sheet (210) is formed by the bandlet (213) of helical twist by having certain width more than 1, on the bandlet (213), forms several through holes (214) at regular intervals; The fan sheet outer cover (220) that around spirality fan sheet, forms.
7. Screw fan assemblying body is characterized in that: the Screw fan assemblying body comprises and the combine running shaft (311) of rotation of motor; Form oval tubular, and be combined in the fan axle (312) on the running shaft; On the surface of above-mentioned fan axle (312), fan sheet (310) from the spirality that the end to end of fanning axle (312) forms; Spirality fan sheet (310) is by having certain width more than 1, bandlet (313) by helical twist is formed, bandlet (313) is arranged the back at regular intervals continuously with several piece bandlet piece and is formed, be formed with the gap between its each bandlet piece, fan the fan sheet outer cover (320) that sheet (310) forms on every side around spirality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208797A CN100414118C (en) | 2003-03-25 | 2003-03-25 | Screw fan combined body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031208797A CN100414118C (en) | 2003-03-25 | 2003-03-25 | Screw fan combined body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1532428A true CN1532428A (en) | 2004-09-29 |
| CN100414118C CN100414118C (en) | 2008-08-27 |
Family
ID=34285487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031208797A Expired - Fee Related CN100414118C (en) | 2003-03-25 | 2003-03-25 | Screw fan combined body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100414118C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588349A (en) * | 2012-02-28 | 2012-07-18 | 中联重科股份有限公司 | Axial flow fan for exhausting air and dust in pipeline |
| CN109297893A (en) * | 2018-10-26 | 2019-02-01 | 张辉卿 | A kind of accelerating thermal aging test device examined for auto parts and components |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2593562A1 (en) * | 1986-01-28 | 1987-07-31 | Borea Corrado | New rotary pump system with a helix |
| FR2756019B1 (en) * | 1996-11-20 | 1999-01-29 | Fournial Jean Francois | ARCHIMEDIC SCREW LIQUID PUMP |
| DE19808311B4 (en) * | 1998-02-27 | 2007-11-08 | Armin Stelzig | Device for charging internal combustion engines with a compressor fan |
-
2003
- 2003-03-25 CN CNB031208797A patent/CN100414118C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588349A (en) * | 2012-02-28 | 2012-07-18 | 中联重科股份有限公司 | Axial flow fan for exhausting air and dust in pipeline |
| CN102588349B (en) * | 2012-02-28 | 2014-02-19 | 中联重科股份有限公司 | Axial flow fan for exhausting air and dust in pipeline |
| CN109297893A (en) * | 2018-10-26 | 2019-02-01 | 张辉卿 | A kind of accelerating thermal aging test device examined for auto parts and components |
| CN109297893B (en) * | 2018-10-26 | 2021-03-12 | 竹田（无锡）汽配制造有限公司 | Accelerated thermal aging test device for automobile part inspection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100414118C (en) | 2008-08-27 |
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| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20080827 Termination date: 20110325 |