CN202170884U - Air shaft and bearing combination of single-stage air suspension high-speed centrifugal blower - Google Patents
Air shaft and bearing combination of single-stage air suspension high-speed centrifugal blower Download PDFInfo
- Publication number
- CN202170884U CN202170884U CN2011202127530U CN201120212753U CN202170884U CN 202170884 U CN202170884 U CN 202170884U CN 2011202127530 U CN2011202127530 U CN 2011202127530U CN 201120212753 U CN201120212753 U CN 201120212753U CN 202170884 U CN202170884 U CN 202170884U
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- bearing
- air
- outer ring
- centrifugal blower
- speed centrifugal
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Abstract
The utility model relates to an air shaft and a bearing combination of a single-stage air suspension high-speed centrifugal blower, which comprises an air bearing and the air shaft arranged in the air bearing, and is characterized in that the air bearing comprises a cylinder-shaped outer ring (6) of the bearing, and an inner ring (5) of the bearing that is arranged at the inner circumferential surface of the outer ring (6) of the bearing and forms a circular-ring-shaped cavity together with the outer ring (6) of the bearing; the outer ring (6) of the bearing is connected with an air inlet pipe (7) which is communicated with the cavity; the inner circumferential surface of the inner ring (5) of the bearing is provided with a radial air outlet hole (4); and an axial air outlet hole (1) is arranged at one side along the axial direction of the inner ring (5) of the bearing, and the other side along the axial direction of the inner ring (5) of the bearing is provided with a closed bottom plate. After the air shaft and the bearing combination of the single-stage air suspension high-speed centrifugal blower is adopted, the shaft is prevented from axial runout by applying axial force on a shaft disc; furthermore, the air shaft and bearing combination is simple in structure and convenient to process.
Description
Technical field
The utility model relates to a kind of air shaft and the bearing of mechanical field, specifically, relates to a kind of air shaft and bearing combination of gas suspension single-stage high-speed centrifugal blower.
Background technique
In fields such as sewage treatment, metallurgy, electric power, petrochemical industry, the single-stage high-speed centrifugal blower is used very extensive.The gas suspension single-stage high-speed centrifugal blower of external in recent years research and development application; Adopted " high speed direct-coupled electrical machinery " and " air suspension bearing " this two quantum jump property core technology; The total mechanical efficient of blower fan is up to more than 88%, and the characteristics that have the efficient height, noise are low, vibration is low, wearing and tearing are low are than present single-stage high-speed centrifugal blower economize on electricity about 7%～8%; And can thoroughly solve the leakage of oil, the contaminated with oil mist problem that adopt the high-speed gear box transmission to bring; Can reduce simultaneously the construction investment of cost of equipment maintenance and air blast machine room significantly, comprehensive benefit is remarkable, is fit to very much the application of domestic middle or small sewage treatment.But the pneumatic bearing that is used for gas suspension single-stage high-speed centrifugal blower in the past can not be offset axial force effectively, causes the rotating shaft play, can cause problems such as noise increase, component life shortening.
The model utility content
For addressing the above problem, the utility model provides a kind of air shaft and bearing combination of gas suspension single-stage high-speed centrifugal blower, can effectively prevent the impeller axial float.
For satisfying above-mentioned requirements, the technological scheme of the utility model is following.
A kind of air shaft of gas suspension single-stage high-speed centrifugal blower and bearing combination; Comprise pneumatic bearing and the air shaft that is arranged in the said pneumatic bearing; It is characterized in that: said pneumatic bearing comprises columnar bearing outer ring, is arranged at the bearing outer ring inner peripheral surface, forms the bearing inner race of annular cavity with bearing outer ring; Said bearing outer ring is connected with the suction tude that communicates with said cavity; The inner peripheral surface of said bearing inner race is provided with radially air outlet hole, and an axial side of said bearing inner race is provided with axial air outlet hole, and axially opposite side is provided with the base plate of sealing.
Thus, can gas be imported said cavity by suction tude, and from axial air outlet hole and axially air outlet hole derivation.
According to the air shaft and the bearing combination of the described a kind of gas suspension single-stage high-speed centrifugal blower of the utility model, it is characterized in that: said radially air outlet hole is uniformly distributed in the inner peripheral surface of said bearing inner race.
Thus, can make the picking-up axle of radially giving vent to anger.
According to the air shaft and the bearing combination of the described a kind of gas suspension single-stage high-speed centrifugal blower of the utility model, it is characterized in that: said bearing outer ring is provided with the cylindrical flange that protrudes in said bearing inner race at the end near said axial air outlet hole.
According to the air shaft and the bearing combination of the described a kind of gas suspension single-stage high-speed centrifugal blower of the utility model, it is characterized in that: said air shaft is provided with circular reel.
Air shaft and bearing combination according to the described a kind of gas suspension single-stage high-speed centrifugal blower of the utility model is characterized in that said reel is arranged in the formed cavity of flange of bearing outer ring.
Thus, can make reel receive the thrust of axially giving vent to anger.
According to the air shaft of the described a kind of gas suspension single-stage high-speed centrifugal blower of the utility model and bearing combination, can be through apply the axial float that axial force prevents axle to reel, simple in structure, easy to process.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the scheme of installation of the utility model.
Wherein, 1 is axial air outlet hole, and 2 is reel, and 3 is axle, and 4 are air outlet hole radially, and 5 is bearing inner race, and 6 is bearing outer ring, and 7 is suction tude, and 8 is impeller.。
Embodiment
Below in conjunction with accompanying drawing, the mode of execution of the utility model is described further.
A kind of air shaft of gas suspension single-stage high-speed centrifugal blower and bearing combination; Comprise axle; Columnar bearing outer ring; Be arranged at the bearing outer ring inner peripheral surface, form annular cavity with bearing outer ring, be used to hold the bearing inner race of bearing, said bearing outer ring is connected with the suction tude that communicates with said cavity; The inner peripheral surface of said bearing inner race is provided with radially air outlet hole, and an axial side of said bearing inner race is provided with axial air outlet hole, and opposite side is provided with the base plate of sealing; One side of said axle is provided with circular reel.
During blower fan work, pressurized gas produce the axial force to bearing to rotary blade; Pressurized gas get into the cavity of bearing inner race 5 and bearing outer ring 6 through suction tude 7; The gas of going out from air outlet hole 4 radially floats axle 3; The gas of going out from axial air outlet hole 1 produces the power to impeller to reel 2, thereby the balance impeller is to the axial force of bearing.
According to the air shaft of the described a kind of gas suspension single-stage high-speed centrifugal blower of the utility model and bearing combination, can be through apply the axial float that axial force prevents axle to reel, simple in structure, easy to process.
Claims (5)
1. the air shaft of a gas suspension single-stage high-speed centrifugal blower and bearing combination; Comprise pneumatic bearing and the air shaft that is arranged in the said pneumatic bearing; It is characterized in that: said pneumatic bearing comprises columnar bearing outer ring (6), is arranged at bearing outer ring (6) inner peripheral surface, forms the bearing inner race (5) of annular cavity with bearing outer ring (6); Said bearing outer ring (6) is connected with the suction tude (7) that communicates with said cavity; The inner peripheral surface of said bearing inner race (5) is provided with radially air outlet hole (4), and an axial side of said bearing inner race (5) is provided with axial air outlet hole (1), and axially opposite side is provided with the base plate of sealing.
2. the air shaft of a kind of gas suspension single-stage high-speed centrifugal blower according to claim 1 and bearing combination, it is characterized in that: said radially air outlet hole (4) is uniformly distributed in the inner peripheral surface of said bearing inner race (5).
3. the air shaft of a kind of gas suspension single-stage high-speed centrifugal blower according to claim 1 and bearing combination, it is characterized in that: said bearing outer ring (6) is provided with the cylindrical flange that protrudes in said bearing inner race (5) at the end near said axial air outlet hole (1).
4. the air shaft of a kind of gas suspension single-stage high-speed centrifugal blower according to claim 1 and bearing combination, it is characterized in that: said air shaft (3) is provided with circular reel (2).
5. the air shaft of a kind of gas suspension single-stage high-speed centrifugal blower according to claim 4 and bearing combination is characterized in that said reel (2) is arranged in the formed cavity of flange of bearing outer ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202127530U CN202170884U (en) | 2011-06-22 | 2011-06-22 | Air shaft and bearing combination of single-stage air suspension high-speed centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202127530U CN202170884U (en) | 2011-06-22 | 2011-06-22 | Air shaft and bearing combination of single-stage air suspension high-speed centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202170884U true CN202170884U (en) | 2012-03-21 |
Family
ID=45829080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202127530U Expired - Lifetime CN202170884U (en) | 2011-06-22 | 2011-06-22 | Air shaft and bearing combination of single-stage air suspension high-speed centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202170884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968972A (en) * | 2017-03-31 | 2017-07-21 | 哈尔滨庆功林气悬浮鼓风机有限公司 | A kind of gas suspension bearing air blower and gas suspension bearing boosting method |
-
2011
- 2011-06-22 CN CN2011202127530U patent/CN202170884U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968972A (en) * | 2017-03-31 | 2017-07-21 | 哈尔滨庆功林气悬浮鼓风机有限公司 | A kind of gas suspension bearing air blower and gas suspension bearing boosting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Chongchuan District Zhongxiu East Road 226001 Jiangsu city of Nantong Province, No. 666 Patentee after: Jintongling Technology Group Co., Ltd. Address before: Chongchuan District Zhongxiu East Road 226001 Jiangsu city of Nantong Province, No. 666 Patentee before: Jiangsu Jintongling Fluid Machinery Technology Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |
|
| CX01 | Expiry of patent term |