CN108612667A - Wind turbine non-contact mechanical seal structure - Google Patents
Wind turbine non-contact mechanical seal structure Download PDFInfo
- Publication number
- CN108612667A CN108612667A CN201611125923.5A CN201611125923A CN108612667A CN 108612667 A CN108612667 A CN 108612667A CN 201611125923 A CN201611125923 A CN 201611125923A CN 108612667 A CN108612667 A CN 108612667A
- Authority
- CN
- China
- Prior art keywords
- seal
- end cap
- bearing
- main shaft
- wind turbine
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/122—Shaft sealings using sealing-rings especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/10—Metals, alloys or intermetallic compounds
- F05D2300/17—Alloys
- F05D2300/171—Steel alloys
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention belongs to centrifugal fan fields, and in particular to a kind of wind turbine non-contact mechanical seal structure.A kind of wind turbine non-contact mechanical seal structure, including main shaft, bearing assembly on main shaft, the bearing assembly includes bearing and bearing housing, bearing box end cap, it is also equipped with seal on the main shaft, the seal and the adjacent face of bearing box end cap are the conical surface, and the taper of the conical surface is consistent with the taper of bearing box end cap, and there are gaps between the seal and bearing box end cap.The present invention uses non-contact mechanical seal, seal is mounted on main shaft by two interior hexagonal holding screws, it is consistent with the seal groove taper on the inside of end cap, and keep certain interval, it is rotated by main shaft, seal rotation is driven, is got rid of lubricating oil in the oil-recovery tank to end cap by centrifugal force, to flow back to bearing housing, oil leak is avoided；On the other hand, seal is steel part, there is no wear problem, is also ensured oil-proof for a long time.
Description
Technical field
The invention belongs to centrifugal fan fields, and in particular to a kind of wind turbine non-contact mechanical seal structure.
Background technology
Centrifugal fan operation principle is identical as centrifugal pump, structure also Datong District little Yi.Mainly by snail row casing and leafy
The impeller of piece forms.Oil in centrifugal fan is stored in bearing housing, is lubricated when being rotated for centrifugal fan, is anti-
Only oil leakage, usual bearing housing are equipped with sealing structure.Bearing box oil leakage problem is always perplex wind turbine producer one
Persistent ailment, the existing domestic sealing device used, be by the outside of end cap mounting framework oil sealing realize, in this way short time
It it is the case where being not in oil leak, because outside framework oil seal is very high to the roughness requirements of main shaft, if do not reached requirement, when operating
Between it is long, the lip of outside framework oil seal can be ground away, then gap can become larger, the case where just will appear oil leak.
Invention content
For the above-mentioned prior art, the object of the present invention is to provide a kind of wind turbine non-contact mechanical seal structure, pass through
The problem of setting seal prevents bearing box oil leakage.To realize that the purpose, the present invention adopt the following technical scheme that：
A kind of wind turbine non-contact mechanical seal structure, including main shaft, the bearing assembly being mounted on main shaft, the bearing assembly
Including bearing and bearing housing, bearing box end cap, seal, the seal and bearing box end cap phase are also equipped on the main shaft
Adjacent face is the conical surface, and the taper of the conical surface is consistent with the taper of bearing box end cap, is stayed between the seal and bearing box end cap
There is gap.
Further, the seal by screw locking on main shaft.
Further, the screw is interior hexagonal holding screw.
Further, the gap between the seal and bearing box end cap is 1.5-2mm.This gap crosses conference oil leak,
Too small installation is inconvenient, may be with axle bed end cap grazing.
Further, the cross section of the seal is T-type, and first end and bearing box end cap are adjacent.
Further, the bearing assembly is fixed by round nut and thrust washer.
Further, the seal is steel part.Steel part wearability is good, not will produce abrasion in rotation process.
Compare the prior art, and the present invention uses non-contact mechanical seal, will be close by two interior hexagonal holding screws
Body is sealed to be mounted on main shaft, it is consistent with the seal groove taper on the inside of end cap, and certain interval is kept, rotated by main shaft, band
Dynamic sealing body rotates, and gets rid of in the oil-recovery tank to end cap lubricating oil by centrifugal force, to flow back to bearing housing, avoids leakage
Oil；On the other hand, seal is steel part, there is no wear problem, is also ensured oil-proof for a long time.
Description of the drawings
Fig. 1 is cross-sectional view of the present invention；
Fig. 2 is sealed body structure schematic diagram；
In figure, 1- main shafts, 2- bearings, 3- bearing housings, 4- bearing box end caps, 5- seals, 51- first ends, 6- screws, 7- circles
Nut, 8- thrust washers.
Specific implementation mode
With reference to embodiment and attached drawing, the invention will be further described.
A kind of wind turbine non-contact mechanical seal structure, including main shaft 1, the bearing assembly being mounted on main shaft 1, the axis
Bearing assembly includes bearing 2 and bearing housing 3, bearing box end cap 4, and bearing assembly is fixed by round nut 7 and thrust washer 8, described
Steel part seal 5 is installed with by screw 6 on main shaft 1, the face adjacent with bearing box end cap of the seal 5 is the conical surface,
The taper of the conical surface is consistent with the taper of bearing box end cap 4, and there are 1.5-2mm's between the seal 5 and bearing box end cap 4
Gap.
The screw 6 is interior hexagonal holding screw.
The cross section of the seal 5 is T-type, and first end 51 and bearing box end cap 4 are adjacent.
Finally it should be noted that：Above example is only to illustrate the present invention and not limits technology described in the invention
Scheme；Therefore, although this specification with reference to above-mentioned each embodiment to present invention has been detailed description, this
Field it is to be appreciated by one skilled in the art that still can modify to the present invention or equivalent replacement；And all do not depart from this
The technical solution of the spirit and scope of invention and its improvement should all be covered in scope of the presently claimed invention.
Claims (7)
1. a kind of wind turbine non-contact mechanical seal structure, including main shaft（1）, it is mounted on main shaft（1）On bearing assembly, it is described
Bearing assembly includes bearing（2）And bearing housing（3）, bearing box end cap（4）, it is characterised in that：The main shaft（1）On be also equipped with
Seal（5）, the seal（5）The face adjacent with bearing box end cap is the conical surface, the taper and bearing box end cap of the conical surface（4）
Taper it is consistent, the seal（5）And bearing box end cap（4）Between there are gaps.
2. wind turbine non-contact mechanical seal structure according to claim 1, it is characterised in that：The seal（5）It is logical
Cross screw（6）Locking is in main shaft（1）On.
3. wind turbine non-contact mechanical seal structure according to claim 2, it is characterised in that：The screw（6）It is interior
Hexagonal holding screw.
4. wind turbine non-contact mechanical seal structure according to claim 1, it is characterised in that：The seal（5）With
Bearing box end cap（4）Between gap be 1.5-2mm.
5. wind turbine non-contact mechanical seal structure according to claim 4, it is characterised in that：The seal（5）'s
Cross section is T-type, first end（51）And bearing box end cap（4）It is adjacent.
6. wind turbine non-contact mechanical seal structure according to claim 1, it is characterised in that：The bearing assembly passes through
Round nut（7）And thrust washer（8）It is fixed.
7. wind turbine non-contact mechanical seal structure according to claim 1, it is characterised in that：The seal（5）It is
Steel part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125923.5A CN108612667A (en) | 2016-12-09 | 2016-12-09 | Wind turbine non-contact mechanical seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125923.5A CN108612667A (en) | 2016-12-09 | 2016-12-09 | Wind turbine non-contact mechanical seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108612667A true CN108612667A (en) | 2018-10-02 |
Family
ID=63643525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611125923.5A Pending CN108612667A (en) | 2016-12-09 | 2016-12-09 | Wind turbine non-contact mechanical seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108612667A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008038006A1 (en) * | 2008-08-16 | 2010-02-18 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Sealing ring e.g. shaft sealing ring, for use in exhaust gas turbocharger of internal combustion engine of motor vehicle, has groove combs running parallel to each other, where front side is provided with shark-skin-like microstructure |
| CN204299940U (en) * | 2014-11-21 | 2015-04-29 | 广东三合环保通风设备有限公司 | A kind of rotating shaft sealing structure of centrifugal blower |
| CN104913060A (en) * | 2014-03-12 | 2015-09-16 | 卡尔弗罗伊登伯格两合公司 | Double sealing device and an injection pump comprising such a device |
| CN204942057U (en) * | 2015-09-16 | 2016-01-06 | 镇江市丹徒区双诚风机厂 | Blower fan non-contact mechanical seal structure |
| CN205036590U (en) * | 2015-09-25 | 2016-02-17 | 江苏新泰泵阀制造有限公司 | Multistage centrifugal pump rotor equipment |
| CN105971925A (en) * | 2016-07-08 | 2016-09-28 | 上海通用风机股份有限公司 | Sealing device for antiseptic draught fan |
-
2016
- 2016-12-09 CN CN201611125923.5A patent/CN108612667A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008038006A1 (en) * | 2008-08-16 | 2010-02-18 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | Sealing ring e.g. shaft sealing ring, for use in exhaust gas turbocharger of internal combustion engine of motor vehicle, has groove combs running parallel to each other, where front side is provided with shark-skin-like microstructure |
| CN104913060A (en) * | 2014-03-12 | 2015-09-16 | 卡尔弗罗伊登伯格两合公司 | Double sealing device and an injection pump comprising such a device |
| CN204299940U (en) * | 2014-11-21 | 2015-04-29 | 广东三合环保通风设备有限公司 | A kind of rotating shaft sealing structure of centrifugal blower |
| CN204942057U (en) * | 2015-09-16 | 2016-01-06 | 镇江市丹徒区双诚风机厂 | Blower fan non-contact mechanical seal structure |
| CN205036590U (en) * | 2015-09-25 | 2016-02-17 | 江苏新泰泵阀制造有限公司 | Multistage centrifugal pump rotor equipment |
| CN105971925A (en) * | 2016-07-08 | 2016-09-28 | 上海通用风机股份有限公司 | Sealing device for antiseptic draught fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181002 |