CN2727461Y - Novel induced draft fan - Google Patents
Novel induced draft fan Download PDFInfo
- Publication number
- CN2727461Y CN2727461Y CN 200420070669 CN200420070669U CN2727461Y CN 2727461 Y CN2727461 Y CN 2727461Y CN 200420070669 CN200420070669 CN 200420070669 CN 200420070669 U CN200420070669 U CN 200420070669U CN 2727461 Y CN2727461 Y CN 2727461Y
- Authority
- CN
- China
- Prior art keywords
- gland
- rotor
- draft fan
- induced draft
- central shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a novel induced draft fan which is a civil combustion supporting device. The outer shell of the device is composed of the frame of the induced draft fan, a stator, a gland and the cap of the gland. A rotor is arranged at the middle of the stator, the rotating shaft of the rotor is provided with a vane, two sides of the rotating shaft of the rotor are provided with semicircular grooves, and balls are arranged in the semicircular grooves; the end parts of the central shaft of the frame of the induced draft fan are provided with screw rods and nuts, and the end parts of the central shaft contacting with the rotor are the semicircular grooves; the stator is matched with the gland via a rabbet, the end parts of the central shaft of the gland are provided with the screw rods and the nuts, a connecting part between the central shaft of the gland and the rotating shaft of the rotor is the semicircular grooves, and cap of the gland is fixed with the gland via screws. The novel induced draft fan which is a civil combustion supporting device has the advantages of reasonable structure, low cost and long service life, the rotating resistance of the rotor is reduced due to structural variation, and the situation that the induced draft fan is burnt since dust in bearing structure enters the bearing is avoided.
Description
Technical field
The utility model relates to the novel induced draught fan of a kind of civilian combustion-supporting device.
Background technique
At present, the induced draught fan of selling on the market all connects rotor rotation by bearing, and in the using process of induced draught fan, flue dust often is bonded on the bearing easily, and the resistance of rotor rotation is increased, and causes short circuit easily, and induced draught fan is burnt out, and reduce working life.
Summary of the invention
The purpose of this utility model provides a kind of novel induced draught fan that replaces rational in infrastructure, the long service life of bearing with ball.
Novel induced draught fan is characterized in that: the shell of this device is made up of induced draught fan support, stator, gland, gland cap, and rotor is located in the middle of the stator, and rotor shaft is provided with blade, and the rotor shaft both sides are provided with semi-circular recesses, and ball is located in the semi-circular recesses; End at the central shaft of induced draught fan support is provided with screw rod and nut, is semi-circular recesses in the end that this central shaft contacts with rotor; Stator cooperates by seam with gland to be fixed, and gland central shaft end is provided with screw rod and nut, and gland central shaft and rotor shaft connection are semi-circular recesses, and gland cap and gland are fixed with screw.
The utility model has the advantages that: rational in infrastructure, fabricating cost is low, because the change of structure has reduced the resistance of rotor rotation, the dust of having avoided existing in the bearing structure enters the situation that bearing causes burning out induced draught fan, long service life.
Description of drawings
Fig. 1 is the structural representation of novel induced draught fan.
Embodiment
See Fig. 1, the shell of this device is made up of induced draught fan support 1, stator 8, gland 12, gland cap 13, and rotor 7 is located in the middle of the stator, and rotor shaft is provided with blade 5, and rotor shaft 6 both sides are provided with semi-circular recesses 4 and 10, and ball 18 is located in the semi-circular recesses; End at the central shaft 2 of induced draught fan support 1 is provided with screw rod 16 and nut 14, is semi-circular recesses 3 in the end that this central shaft contacts with rotor; Stator 8 cooperates by seam 9 with gland 12 to be fixed, and gland central shaft end is provided with screw rod 17 and nut 15, and gland central shaft and rotor shaft connection are semi-circular recesses 11, and gland cap 13 is fixed with screw with gland.
This device is regulated the gap of ball by turning the screw rod that the nut adjustment cooperates with nut, and rotor shaft is rotated flexibly.During use, the induced draught fan support is aimed at exhaust outlet, connect with the mains, rotor drives the blade rotation on the rotor shaft, and wind is drawn.
Claims (1)
1, novel induced draught fan, it is characterized in that: the shell of this device is made up of induced draught fan support, stator, gland, gland cap, and rotor is located in the middle of the stator, and rotor shaft is provided with blade, the rotor shaft both sides are provided with semi-circular recesses, and ball is located in the semi-circular recesses; End at the central shaft of induced draught fan support is provided with screw rod and nut, is semi-circular recesses in the end that this central shaft contacts with rotor; Stator cooperates by seam with gland to be fixed, and gland central shaft end is provided with screw rod and nut, and gland central shaft and rotor shaft connection are semi-circular recesses, and gland cap and gland are fixed with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070669 CN2727461Y (en) | 2004-09-15 | 2004-09-15 | Novel induced draft fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420070669 CN2727461Y (en) | 2004-09-15 | 2004-09-15 | Novel induced draft fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2727461Y true CN2727461Y (en) | 2005-09-21 |
Family
ID=35043476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420070669 Expired - Fee Related CN2727461Y (en) | 2004-09-15 | 2004-09-15 | Novel induced draft fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2727461Y (en) |
-
2004
- 2004-09-15 CN CN 200420070669 patent/CN2727461Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |