CN204402925U - A kind of single impeller centrifugal blower - Google Patents
A kind of single impeller centrifugal blower Download PDFInfo
- Publication number
- CN204402925U CN204402925U CN201420643786.4U CN201420643786U CN204402925U CN 204402925 U CN204402925 U CN 204402925U CN 201420643786 U CN201420643786 U CN 201420643786U CN 204402925 U CN204402925 U CN 204402925U
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- CN
- China
- Prior art keywords
- impeller
- thrust bearing
- rotor set
- motor
- balance disc
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of single impeller centrifugal blower, comprise motor, rotor set and casing, described rotor set is fixedly connected with the driving end of motor, the outside of rotor set is provided with casing, and the inside of described casing is provided with suction chamber, described rotor set is socketed with impeller and thrust bearing, described impeller is positioned at suction chamber inside, described thrust bearing, between motor and impeller, is characterized in that: described rotor set is also socketed with Balance disc, and described Balance disc is between impeller and thrust bearing.The rotor set of the utility model between impeller and thrust bearing is installed Balance disc and carry out the additional thrust of balancing rotor axial force with impeller, Balance disc balancing rotor axial force can follow about 70 percent of the summation of the additional thrust of impeller, remaining fraction power is in the scope that thrust bearing bears, and then can ensure the requirement of the normal operation that blower fan is permanently effective.
Description
Technical field
The utility model relates to technical field of mechanical equipment, is specifically related to a kind of single impeller centrifugal blower.
Background technique
Centrifugal blower refers to that active wheel is in the process rotated, and due to the diffusion flowing in the effect of rotary centrifugal force and active wheel, the speed of gas is improved, speed can be converted into a kind of equipment of pressure energy subsequently in Diffuser.One-stage centrifugal blower fan only has one group of impeller, the compression of air is that first compression completes, because centrifugal blower relies on the flowing velocity of raising air and aerodynamic energy to carry out pressurized air to improve pressure, so same pressure will be obtained, the impeller of one-stage centrifugal blower fan must than the rotating speed height decades of times of multistage blower fan, the rotating speed of multistage centrifugal blower only has thousands of turns under normal circumstances, and the rotating speed of one-stage centrifugal blower fan up to tens thousand of turns even up to hundreds thousand of turns.
In blower fan operation process, rotor set can be moved to the left, thus produces larger axial force.Because thrust bearing is static element, axial force this moment has all acted on above thrust bearing.And blower fan is after smooth running, and the additional thrust that impeller produces, also can all act on above thrust bearing.Due to, thrust bearing receives the axial force of rotor set and the additional thrust of impeller, for thrust bearing, as long as blower fan is in running, these two kinds of power all can exist, As time goes on, these two kinds of power sums can exceed the power that thrust bearing bears, and then thrust bearing can damage in a short period of time.Once thrust bearing damages, fan rotor group balance receives and have impact on, and fan vibration is very large, have impact on the normal operation of blower fan.
Summary of the invention
The purpose of this utility model overcomes existing defects and deficiency in prior art, provides that a kind of mechanism is simple, the single impeller centrifugal blower of internal pressure balance, long service life.
For realizing above object, technical solution of the present utility model is: a kind of single impeller centrifugal blower, comprise motor, rotor set and casing, described rotor set is fixedly connected with the driving end of motor, the outside of rotor set is provided with casing, the inside of described casing is provided with suction chamber, described rotor set is socketed with impeller and thrust bearing, described impeller is positioned at suction chamber inside, described thrust bearing is between motor and impeller, it is characterized in that: described rotor set is also socketed with Balance disc, described Balance disc is between impeller and thrust bearing.
Described motor is connected with soft starting device.
The material of described Balance disc is stainless steel.
Compared with prior art, the utility model has following beneficial effect:
1, the rotor set of the utility model between impeller and thrust bearing is installed Balance disc and carry out the additional thrust of balancing rotor axial force with impeller, Balance disc balancing rotor axial force can follow about 70 percent of the summation of the additional thrust of impeller, remaining fraction power is in the scope that thrust bearing bears, and then can ensure the requirement of the normal operation that blower fan is permanently effective.
2, the utility model connects soft starting device on motor, significantly can be promoted the rotating speed of rotor set by step-up gear.
3, the utility model uses material to be stainless Balance disc, and anti-pressure ability is stronger, can bear more pressure, and anti-corrosion capacity is strong, can uses the longer time for thrust bearing.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: motor 1, rotor set 2, casing 3, suction chamber 4, impeller 5, thrust bearing 6, Balance disc 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
See Fig. 1, a kind of single impeller centrifugal blower, comprise motor 1, rotor set 2 and casing 3, described rotor set 2 is fixedly connected with the driving end of motor 1, motor 1 is connected with soft starting device, the outside of rotor set 2 is provided with casing 3, the inside of described casing 3 is provided with suction chamber 4, described rotor set 2 is socketed with impeller 5 and thrust bearing 6, it is inner that described impeller 5 is positioned at suction chamber 4, described thrust bearing 6 is between motor 1 and impeller 5, described rotor set 2 being also socketed with material is stainless Balance disc 7, described Balance disc 7 is between impeller 5 and thrust bearing 6.
Claims (3)
1. a single impeller centrifugal blower, comprise motor (1), rotor set (2) and casing (3), described rotor set (2) is fixedly connected with the driving end of motor (1), the outside of rotor set (2) is provided with casing (3), the inside of described casing (3) is provided with suction chamber (4), described rotor set (2) is socketed with impeller (5) and thrust bearing (6), it is inner that described impeller (5) is positioned at suction chamber (4), described thrust bearing (6) is positioned between motor (1) and impeller (5), it is characterized in that: described rotor set (2) is also socketed with Balance disc (7), described Balance disc (7) is positioned between impeller (5) and thrust bearing (6).
2. a kind of single impeller centrifugal blower according to claim 1, is characterized in that: described motor (1) is connected with soft starting device.
3. a kind of single impeller centrifugal blower according to claim 1 and 2, is characterized in that: the material of described Balance disc (7) is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420643786.4U CN204402925U (en) | 2014-10-30 | 2014-10-30 | A kind of single impeller centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420643786.4U CN204402925U (en) | 2014-10-30 | 2014-10-30 | A kind of single impeller centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402925U true CN204402925U (en) | 2015-06-17 |
Family
ID=53426791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420643786.4U Expired - Lifetime CN204402925U (en) | 2014-10-30 | 2014-10-30 | A kind of single impeller centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402925U (en) |
-
2014
- 2014-10-30 CN CN201420643786.4U patent/CN204402925U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |