CN201851875U - Pneumatic sealing oil shield for bearing box - Google Patents
Pneumatic sealing oil shield for bearing box Download PDFInfo
- Publication number
- CN201851875U CN201851875U CN2010205597745U CN201020559774U CN201851875U CN 201851875 U CN201851875 U CN 201851875U CN 2010205597745 U CN2010205597745 U CN 2010205597745U CN 201020559774 U CN201020559774 U CN 201020559774U CN 201851875 U CN201851875 U CN 201851875U
- Authority
- CN
- China
- Prior art keywords
- oil
- negative pressure
- bearing box
- oil separator
- pneumatic sealing
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Rolling Contact Bearings (AREA)
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a pneumatic sealing oil shield for a bearing box. The pneumatic sealing oil shield solves the ubiquitous lubricant oil leakage problem of the existing bearing box and is characterized in that an oil separator is connected outside the bearing box through a tee joint and a lower negative pressure pipe; a negative pressure monitoring port is arranged at the lower end of the oil separator; and the upper end of the oil separator is connected with a valve and a negative pressure device through an upper negative pressure pipe. By adjusting a valve switch, a negative pressure of 10-50mm water column can be generated by the bearing box during operation, so that the oil mist in the bearing box can be guided to the oil separator; and under the action of a steel wire ball of the oil separator, the oil mist can form oil drop and flow back to the bearing box along the oil separator, and the oil leakage at the shaft end is avoided. Therefore, the pneumatic sealing oil shield can be applied to the bearing boxes of the coal mill, the water pump and the induced draft fan in the power plant.
Description
Technical field:
The utility model relates to a kind of seal arrangement, relates to a kind of seal arrangement of lubricating oil system middle (center) bearing case or rather.
Background technique:
Bearing housing ubiquity in the lubricating oil system the oil seepage problem.Traditional shaft end seal; generally be to add felt collar or adopt structures such as copper gear piece, aluminium matter gear piece by cast steel; seal clearance is aging easily; seepage often appears in the sealability instability, and the gap changes or felt collar wears out etc. all can cause temperature to raise and leakage of oil; leakage of oil causes the oil level shakiness; the heating of bearing oil starvation, damage, sealing journal wear etc. can cause mill axle, vibration, damage of bearings, main shaft to become accidents such as song, shutdown when serious.
Summary of the invention:
The purpose of this utility model is to overcome the deficiencies in the prior art a kind of bearing housing pneumatic seal oil catch that makes the non-leakage oil of bearing housing axle head is provided.
The technological scheme that the utility model is taked is as follows: oil sealing device is installed on bearing housing, it is characterized in that outside bearing housing, connecting oil separator by threeway, following negative pressure pipe, described oil separator lower end is provided with negative pressure monitoring mouth, and the upper end connects valve, negative pressure device by last negative pressure pipe.
Described negative pressure monitoring mouthful installation plug.Open plug, can insert the straight-through bearing housing of a flexible pipe in negative pressure monitoring mouth, the size of regulating valve switch makes operating bearing housing produce the negative pressure of 10-50mm water column.Maintaining valve gate switch degree is taken flexible pipe away, seals up plug, opens negative pressure device and just can make little negative pressure that formation continues in the bearing housing.
Described oil separator is a metal cylinder, built-in steel wire tennis.Mist of oil in the bearing housing is attracted to oil separator along the negative pressure pipe, and because of the caliber chap, it is big that volume becomes, and flow velocity diminishes, and mist of oil forms oil droplet under the effect of steel wire tennis, and the oil separator wall flows back to bearing housing in the action of gravity lower edge.
As shown from the above technical solution, the utility model utilizes little negative pressure to cause oil separator to mist of oil, has avoided the axle head leakage of oil.Bearing housing applicable to the coal pulverizer of power station, water pump, Blower for sucking or supplying.
Description of drawings:
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1. negative pressure device, 2. valve is 3. gone up the negative pressure pipe, and 4. oil separator 5. descends the negative pressure pipe, 6. negative pressure monitoring mouthful, 7. plug, 8. threeway, 9. oil filler, 10. bearing housing, 11. axle heads, 12. main shafts.
Embodiment:
Below in conjunction with accompanying drawing the utility model is further described.
As shown in drawings, negative pressure device 1 is connected with oil separator 4 by negative pressure pipe 3 on the valve 2 and is connected on the bearing housing 10 by following negative pressure pipe 5, threeway 8.Described negative pressure pipe 4 down is provided with negative pressure monitoring mouth 6 and plug 7.Described threeway 8 has also connected oil filler 9.
Little negative pressure that negative pressure device 1 produces can be attracted to oil separator 4 to the mist of oil in the bearing housing 10 by following negative pressure pipe 5, effect through oil separator 4 forms oil stream, under action of gravity, flow back to bearing housing 10, so be in operation, the seepage phenomenon of oil can not appear in the axle head 11 of main shaft 12, thereby has reached sealing effect.
Claims (2)
1. bearing housing pneumatic seal oil catch, oil sealing device is installed on bearing housing, it is characterized in that outside bearing housing (10), connecting oil separator (4) by threeway (8), following negative pressure pipe (5), described oil separator (4) lower end is provided with negative pressure monitoring mouthful (6), and the upper end connects valve (2), negative pressure device (1) by last negative pressure pipe (3).
2. bearing housing pneumatic seal oil catch as claimed in claim 1 is characterized in that described negative pressure monitoring mouthful (6) installation plug (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205597745U CN201851875U (en) | 2010-10-05 | 2010-10-05 | Pneumatic sealing oil shield for bearing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205597745U CN201851875U (en) | 2010-10-05 | 2010-10-05 | Pneumatic sealing oil shield for bearing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201851875U true CN201851875U (en) | 2011-06-01 |
Family
ID=44094266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205597745U Expired - Fee Related CN201851875U (en) | 2010-10-05 | 2010-10-05 | Pneumatic sealing oil shield for bearing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201851875U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106015892A (en) * | 2016-08-04 | 2016-10-12 | 中国葛洲坝集团水泥有限公司 | Bearing pedestal provided with cooling oil-leakage prevention system on cement production line |
| CN106151852A (en) * | 2015-04-20 | 2016-11-23 | 淮北矿山机器制造有限公司 | A kind of large-scale thickener automatic fuelling device |
| CN110552965A (en) * | 2019-08-15 | 2019-12-10 | 杨荣国 | Oil leakage prevention method for bearing seat and oil leakage prevention bearing seat |
-
2010
- 2010-10-05 CN CN2010205597745U patent/CN201851875U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151852A (en) * | 2015-04-20 | 2016-11-23 | 淮北矿山机器制造有限公司 | A kind of large-scale thickener automatic fuelling device |
| CN106015892A (en) * | 2016-08-04 | 2016-10-12 | 中国葛洲坝集团水泥有限公司 | Bearing pedestal provided with cooling oil-leakage prevention system on cement production line |
| CN110552965A (en) * | 2019-08-15 | 2019-12-10 | 杨荣国 | Oil leakage prevention method for bearing seat and oil leakage prevention bearing seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Kangdi Electric Power Science and Technology Co., Ltd. Assignor: Jia Jing Contract record no.: 2011340000523 Denomination of utility model: Pneumatic sealing oil shield for bearing box Granted publication date: 20110601 License type: Exclusive License Record date: 20111229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20151005 |
|
| EXPY | Termination of patent right or utility model |