CN201277196Y - Bearing seal device for large centrifugal fan - Google Patents
Bearing seal device for large centrifugal fan Download PDFInfo
- Publication number
- CN201277196Y CN201277196Y CNU2008202188015U CN200820218801U CN201277196Y CN 201277196 Y CN201277196 Y CN 201277196Y CN U2008202188015 U CNU2008202188015 U CN U2008202188015U CN 200820218801 U CN200820218801 U CN 200820218801U CN 201277196 Y CN201277196 Y CN 201277196Y
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- CN
- China
- Prior art keywords
- oil
- oil baffle
- bearing
- end cap
- centrifugal blower
- 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
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Abstract
The utility model relates to the technical field of bearing sealing, in particular to a large-sized centrifugal blower bearing sealing device, which comprises a bearing box, a main shaft, a bearing, an oil baffle disc, an end cap and a gland, and is characterized in that a through-hole is arranged on the top portion of the bearing box, a dust-proof cap is arranged on the upper portion of the through-hole, an oil return hole is arranged on the end cap, and the oil baffle disc is the combination of a butterfly oil baffle disc or a dish oil baffle disc and an oil baffle. The elevation angle of the oil return hole is from 25 degrees to 35 degrees, the diameter thereof is 8-12mm, and the number thereof is 1-4. The oil baffle is a double-layer aluminum plate, and a gasket is arranged between the aluminum plates. An oil return space is formed between the internal side face of the gland and the external side face of the end cap, and the oil return space is connected with the oil return hole. The bearing sealing device solves the oil leakage problem of a large-sized centrifugal blower, is convenient for the safety operation of operating staff, reduces the maintenance rate, prolongs the service life of the device, and can save more than 300,000 RMB each year.
Description
Technical field
The utility model relates to the bearing seal technical field, particularly a kind of bearing sealing device of large centrifugal blower fan.
Background technique
At present, bearing sealing device of large centrifugal blower fan all is the form that adopts dress felt filler in the axle head gland, quick abrasion, and life cycle is short, leaks serious.Operator are covered tight power through the non-stop-machine situation downward modulation seamless of being everlasting and are leaked to reduce axle head.And shut down restarting after the maintenance and need expend a lot of oil, increased cost.Not only maintenance rate of the sealing height of this form, and oil starvation easily takes place cause the bearing burnt accident.
Summary of the invention
The purpose of this utility model is to provide a kind of stability that increases fan operation, prolongs the bearing sealing device of large centrifugal blower fan of service life of equipment.
The utility model purpose realizes by following technical proposals:
A kind of bearing sealing device of large centrifugal blower fan of the present utility model, comprise bearing housing, main shaft, bearing, oil baffle disc, end cap, gland, the top that it is characterized in that described bearing housing is provided with a vent, the top of this vent is provided with dust cap, described end cap is provided with spill port, and described oil baffle disc is the combination of dish-shaped oil baffle disc or disc oil baffle disc and oil baffle.
The tilt angle of described spill port is 25 °～35 °, and diameter is 8～12mm.
The quantity of described spill port is 1～4.
Described oil baffle is double-deck aluminium sheet, and the centre is provided with pad.
Form an oil return space between the inner side surface of described gland and the outer side surface of described end cap, this oil return space is connected with described spill port.
The working principle of bearing sealing device of large centrifugal blower fan of the present utility model is:
Because blower fan rotating speed when operation is higher, axle produces a large amount of heats with pivot friction makes the lubricant oil heating produce a large amount of oil gas, originally diameter 6mm exhaust port can not satisfy the needs of gaseous emission and heat radiation, so original exhaust port is extended to 18～25mm, and detachable screw thread dust cap is set on the top of vent, to reduce oil-air pressure in the bearing housing, also can do oil hole and use.When this seal arrangement is used for the large centrifugal induced draught fan, by changing the shape of oil baffle disc, stop oil vertically, it is thrown to tank wall returns in the bearing housing.When this seal arrangement is used for the large centrifugal gas fan, in order to reduce the extruding force of oil pressure to external leakage, adopt the disc oil baffle disc to add the compound mode of double-deck aluminium sheet oil baffle, at the inboard of end cap and near establishing double-deck oil baffle in the oil baffle disc place, the centre is provided with pad, form the double-layer seal plate, be fixed on the small end face of end cap inboard, form two oil pockets.Oil is vertically stopped by double-deck oil baffle and forms a stabilize oil district, and the oil that is seeped into the double-deck oil baffle outside does not have pressure in the stabilize oil district, be in steady state yet.Because the filler in the former blower fan gland is removed, form an oil return space between the inner side surface of gland and the outer side surface of end cap, this oil return space is connected with set spill port, when pasta raises, the oil that overflows can turn back in the bearing housing by spill port, reaches the optimum efficiency of sealing.
The utility model has the advantages that:
This associated sealing arrangement for bearings has solved the leakage of oil problem of large centrifugal blower fan, makes things convenient for post personnel's safety operation, reduces the maintenance rate, prolongs the working life of equipment, can save more than 30 ten thousand yuan of RMB every year, has high economic benefit.
Description of drawings
Fig. 1, Fig. 2 are structural representation of the present utility model.
Embodiment
The embodiment who provides below in conjunction with accompanying drawing further specifies embodiment of the present utility model.
As shown in Figure 1 and Figure 2, a kind of bearing sealing device of large centrifugal blower fan of the present utility model, comprise bearing housing 1, main shaft 11, bearing 4, oil baffle disc 5, end cap 8, gland 9, the top that it is characterized in that described bearing housing 1 is provided with a vent 2, the top of this vent 2 is provided with dust cap 3, described end cap 8 is provided with spill port 10, and described oil baffle disc 5 is the combination of dish-shaped oil baffle disc or disc oil baffle disc and oil baffle 6.
The tilt angle of described spill port 10 is 25 °～35 °, and diameter is 8～12mm.
The quantity of described spill port 10 is 1～4.
Described oil baffle 6 is double-deck aluminium sheet, and the centre is provided with pad 7.
Form an oil return space between the outer side surface of the inner side surface of described gland 9 and described end cap 8, this oil return space is connected with described spill port 10.
The utility model has the advantages that:
This associated sealing arrangement for bearings has solved the Leakage of large centrifugal blower fan, makes things convenient for the post personnel's Safety operation reduces the maintenance rate, in the service life of extension device, can save RMB more than 30 ten thousand every year Unit has higher economic benefit.
Claims (5)
1, a kind of bearing sealing device of large centrifugal blower fan, comprise bearing housing, main shaft, bearing, oil baffle disc, end cap, gland, the top that it is characterized in that described bearing housing is provided with a vent, the top of this vent is provided with dust cap, described end cap is provided with spill port, and described oil baffle disc is the combination of dish-shaped oil baffle disc or disc oil baffle disc and oil baffle.
2, bearing sealing device of large centrifugal blower fan according to claim 1, the tilt angle that it is characterized in that described spill port are 25 °～35 °, and diameter is 8～12mm.
3, bearing sealing device of large centrifugal blower fan according to claim 2, the quantity that it is characterized in that described spill port is 1～4.
4, bearing sealing device of large centrifugal blower fan according to claim 1 is characterized in that described oil baffle is double-deck aluminium sheet, and the centre is provided with pad.
5, bearing sealing device of large centrifugal blower fan according to claim 1 is characterized in that forming an oil return space between the outer side surface of the inner side surface of described gland and described end cap, and this oil return space is connected with described spill port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202188015U CN201277196Y (en) | 2008-10-31 | 2008-10-31 | Bearing seal device for large centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202188015U CN201277196Y (en) | 2008-10-31 | 2008-10-31 | Bearing seal device for large centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277196Y true CN201277196Y (en) | 2009-07-22 |
Family
ID=40894782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202188015U Expired - Fee Related CN201277196Y (en) | 2008-10-31 | 2008-10-31 | Bearing seal device for large centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201277196Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818807A (en) * | 2010-04-14 | 2010-09-01 | 胡炜 | Speed reducer |
| CN101713416B (en) * | 2008-10-31 | 2011-06-29 | 鞍钢集团矿业公司 | Bearing sealing device of large centrifugal blower fan |
-
2008
- 2008-10-31 CN CNU2008202188015U patent/CN201277196Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713416B (en) * | 2008-10-31 | 2011-06-29 | 鞍钢集团矿业公司 | Bearing sealing device of large centrifugal blower fan |
| CN101818807A (en) * | 2010-04-14 | 2010-09-01 | 胡炜 | Speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20090722 Termination date: 20121031 |