CN202756298U - Large high-speed centrifugal fan impeller with welded hub disk - Google Patents
Large high-speed centrifugal fan impeller with welded hub disk Download PDFInfo
- Publication number
- CN202756298U CN202756298U CN 201220412440 CN201220412440U CN202756298U CN 202756298 U CN202756298 U CN 202756298U CN 201220412440 CN201220412440 CN 201220412440 CN 201220412440 U CN201220412440 U CN 201220412440U CN 202756298 U CN202756298 U CN 202756298U
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- reel
- disk
- speed centrifugal
- large high
- wheel
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Abstract
The utility model relates to a large high-speed centrifugal fan impeller with a welded hub disk. The large high-speed centrifugal fan impeller comprises the hub disk, a blade, a front disk and a wheel disk behind the front disk and is characterized in that the rear end of the hub disk is connected in the center of the wheel disk, the front end of the hub disk is connected with the wheel disk through a hub disk reinforcing ring, the front lateral edge of the blade is connected with the front disk, and the rear lateral edge is connected with the hub disk. By means of the structure, the large high-speed centrifugal fan impeller with the welded hub disk has the following advantages of being simple in structure, convenient to use, strong in practicability, good in rigidity and capable of guaranteeing reliability of the impeller running at high speed.
Description
Technical field
The utility model relates to a kind of centrifugal blower fan blade wheel, particularly a kind of large high-speed centrifugal blower fan blade wheel of welding reel.
Background technique
Along with domestic and international rapid development of economy, every profession and trade is increasing to the demand of blower fan, and centrifugal blower development general trend is towards high rotating speed, high pressure ratio, high flow capacity, maximization direction in the world.Maximization has brought a series of technical barriers such as design, manufacturing, service life and reliability.And as the reliability of the impeller of its core component key of fan design especially.Bear repeat load and the dynamic load effects such as centrifugal force, aerodynamic force, excitation force, foreign object impact during the work of large fan impeller, higher like this load may cause the various potential safety hazards such as the fracture of impeller cyclic fatigue, distortion overload, vibration cracking.The reliability of impeller directly has influence on the normal operation of whole blower fan, even has influence on the safety of whole blower fan.And present draught fan impeller, its safety reliability does not also reach ideal standard, therefore, be badly in need of blade wheel structure is improved.
The model utility content
The utility model purpose is to overcome the not high problem of reliability in the prior art, and a kind of large high-speed centrifugal blower fan blade wheel of novel welding reel is provided.
To achieve these goals, the technical solution of the utility model is achieved in that a kind of large high-speed centrifugal blower fan blade wheel of welding reel, comprise: reel, blade, shroud and be positioned at shroud after wheel disc, it is characterized in that: the rear end of described reel is connected to the center region of wheel disc, and its front end is connected with wheel disc by a reel stiffening ring; The front side edge of described blade is connected with shroud, and its back side edge is connected with reel.
Preferably, the material of described impeller is structural steel Q390.
Preferably, the two ends of described reel all are respectively equipped with a flange.
Preferably, the Pan Kou place of described shroud is around a wheel cap stiffening ring is arranged.
The utlity model has following advantage: simple in structure, easy to use, practical, have good rigidity, can guarantee the reliability of impeller when high speed operation.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 is structural representation of the present utility model.
Among the figure,
1, shroud 2, wheel disc 3, reel 4, blade 5, reel stiffening ring 6, wheel cap stiffening ring.
Embodiment
See also Fig. 1, shown is a kind of structural scheme of mechanism of large high-speed centrifugal blower fan blade wheel of welding reel, can see that whole impeller comprises, reel, blade, shroud and be positioned at shroud after wheel disc, the rear end of described reel is welded to connect the center region at wheel disc, its front end is welded to connect with wheel disc by a reel stiffening ring (the reel stiffening ring is pre-small post-large tubaeform of opening), strengthen whole rigidity, connect bad consideration for the ease of welding and butt welding, be respectively arranged with a flange collar at the two ends of reel; The front side edge of described blade is entirely welded with shroud and is connected, and its back side edge and reel are welded to connect.For guaranteeing impeller intensity, the Pan Kou place of described shroud is around a wheel cap stiffening ring is arranged.
After whole the welding, impeller is eliminated internal stress process.The quick runner of this kind welding reel has good rigidity, can guarantee the reliability of impeller when high speed operation.
This impeller is made by a kind of low-alloy high-tensile structural steel Q390, and its weldability, cold and hot working performance and decay resistance are all good, can bear higher load.
Below only expressed mode of execution of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model patent scope.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (4)
1. the large high-speed centrifugal blower fan blade wheel of a welding reel, comprise: reel, blade, shroud and be positioned at shroud after wheel disc, it is characterized in that: the rear end of described reel is connected to the center region of wheel disc, and its front end is connected with wheel disc by a reel stiffening ring; The front side edge of described blade is connected with shroud, and its back side edge is connected with reel.
2. the large high-speed centrifugal blower fan blade wheel of a kind of welding reel according to claim 1, it is characterized in that: the material of described impeller is structural steel Q390.
3. the large high-speed centrifugal blower fan blade wheel of a kind of welding reel according to claim 1, it is characterized in that: the two ends of described reel all are respectively equipped with a flange.
4. the large high-speed centrifugal blower fan blade wheel of a kind of welding reel according to claim 1 is characterized in that: the Pan Kou place of described shroud is around a wheel cap stiffening ring is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412440 CN202756298U (en) | 2012-08-20 | 2012-08-20 | Large high-speed centrifugal fan impeller with welded hub disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220412440 CN202756298U (en) | 2012-08-20 | 2012-08-20 | Large high-speed centrifugal fan impeller with welded hub disk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756298U true CN202756298U (en) | 2013-02-27 |
Family
ID=47735483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220412440 Expired - Fee Related CN202756298U (en) | 2012-08-20 | 2012-08-20 | Large high-speed centrifugal fan impeller with welded hub disk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603827A (en) * | 2013-11-20 | 2014-02-26 | 常山卫邦风机有限公司 | Centrifugal fan impeller structure and production method |
| CN110805573A (en) * | 2019-12-12 | 2020-02-18 | 四川德胜集团钒钛有限公司 | Impeller assembly of centrifugal fan |
-
2012
- 2012-08-20 CN CN 201220412440 patent/CN202756298U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603827A (en) * | 2013-11-20 | 2014-02-26 | 常山卫邦风机有限公司 | Centrifugal fan impeller structure and production method |
| CN110805573A (en) * | 2019-12-12 | 2020-02-18 | 四川德胜集团钒钛有限公司 | Impeller assembly of centrifugal fan |
| CN110805573B (en) * | 2019-12-12 | 2021-10-12 | 四川德胜集团钒钛有限公司 | Centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20160820 |