CN206221514U - A kind of double row spherical roller bearing two-lid sealing structure and wind-driven generator - Google Patents
A kind of double row spherical roller bearing two-lid sealing structure and wind-driven generator Download PDFInfo
- Publication number
- CN206221514U CN206221514U CN201621145921.8U CN201621145921U CN206221514U CN 206221514 U CN206221514 U CN 206221514U CN 201621145921 U CN201621145921 U CN 201621145921U CN 206221514 U CN206221514 U CN 206221514U
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- China
- Prior art keywords
- sealing ring
- sealing
- roller bearing
- double row
- spherical roller
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- Expired - Fee Related
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- Wind Motors (AREA)
Abstract
The utility model is related to a kind of double row spherical roller bearing two-lid sealing structure and wind-driven generator, belongs to wind power equipment correlative technology field.Mainly include inner sealing ring, sealing ring top is pressing plate, pressing plate inner side is sealing ring, bearing (ball) cover and double row spherical roller bearing body, the sealing ring includes sealing ring top, sealing ring top is connected with one end of bending waist, the other end and vertical transition part airtight connection of waist are bent, vertical transition part is connected with sealing ring bottom；The lower surface of sealing ring bottom has the first sealing lip and the second sealing lip.The utility model is improved by the sealing ring in existing roller bearing sealing structure, its effect is solved former sealing structure seal failure and leakage problem under special operation condition.
Description
Technical field
It is to be related to a kind of double row spherical roller bearing double specifically the present invention relates to wind power equipment correlative technology field
Lip seal structure and wind-driven generator.
Background technology
Double row spherical roller bearing is selected megawatt wind turbine generator main shaft bearing single bearing structure more.As shown in figure 1, at present
The sealing structure of this bearing mainly uses the reinforced seal structure of single lip, i.e., including inner sealing ring 1-1, on sealing ring 1-1
Portion is pressing plate 1-2, and pressing plate 1-2 inner sides are sealing ring 1-3, bearing (ball) cover 1-4 and double row spherical roller bearing body 1-5.
Because self-aligning roller bearing allows main shaft to be moved radially in relative bearing block, when wind wheel is subject to and main shaft out of plumb
During load, the relative bearing block of main shaft meeting has radial motion in rotation process, when there is radial motion in main shaft, sealing ring 1-3's
The magnitude of interference of lip 1-6 has the direction will to be consumed, and its waist 1-7 cannot carry out radial compensation, then cause sealing to lose
Effect, during lubricant grease cannot flow to oil-collecting bottle by design requirement after seal failure, but from sealing ring 1-3 and inner sealing ring
Overflowed between 1-1.
Although existing sealing ring carries turn, certain self compensation work can be played with aging to the abrasion of sealing ring
With, but when the pendulum angle of main shaft is larger, the compensation rate of existing turn is not just much of that, causes oil leak.
To solve the above problems, Some Enterprises use the elastic force of increase turn or increase the magnitude of interference of sealing ring lip,
Compensation problem can be solved in a short time, but can shorten the life-span of sealing ring.Because of high-altitude of the fan operation more than eight or nine ten meters, shut down
Maintenance cost is higher, solves the mode of compensation problem with the life-span is sacrificed and is difficult to be received substantially.
Therefore, wind-powered electricity generation industry base bearing grease leakage has turned into the common fault and persistent ailment of this industry, has had influence on unit
The operation and maintenance in later stage.
The content of the invention
The purpose of the present invention is to overcome above-mentioned the deficiencies in the prior art, there is provided a kind of double row spherical roller bearing lips are close
Seal structure.The present invention is improved by the sealing ring in existing roller bearing sealing structure, it is effectively solved former sealing
Structure seal failure and leakage problem under special operation condition.
In order to reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
A kind of double row spherical roller bearing two-lid sealing structure, including inner sealing ring, sealing ring top are pressing plate, pressing plate
Inner side be sealing ring, bearing (ball) cover and double row spherical roller bearing body,
The sealing ring includes sealing ring top, and sealing ring top is connected with one end of bending waist, bends the another of waist
One end is connected with vertical transition part airtight connection, vertical transition part with sealing ring bottom；
The lower surface of sealing ring bottom has the first sealing lip and the second sealing lip.
Preferably, the sealing ring top, bending waist, vertical transition part, sealing ring bottom, the first sealing lip and second
Sealing lip is formed in one.
Preferably, the sealing ring is nitrile rubber material.
Preferably, the sealing ring is hydrogenation nitrile rubber material.
Preferably, there are two turns, two turns are located at the first sealing lip and second in the sealing ring bottom
Sealing lip top.
While said structure scheme is provided, present invention also offers a kind of wind-driven generator, the wind-power electricity generation equipment
There is main shaft, main shaft is integrated by double row spherical roller bearing with bearing block assembling, wherein, described double row spherical roller bearing
It is above-mentioned double row spherical roller bearing two-lid sealing structure.
The beneficial effects of the invention are as follows：
(1) existing sealing ring waist is changed to bend waist, makes it have larger elastic and compressible amount so that should
Sealing ring is radially provided with certain stroke (i.e. compensation rate) in bearing after mounting so that main shaft is when moving radially
Sealing ring has good trackability, and then improves sealing effectiveness.
(2) single bead structure is changed to dual lip configuration, one layer of sealing is protected to have made it many, improves the anti-eccentric energy of sealing ring
Power.
Brief description of the drawings
Fig. 1 is the existing double row spherical roller bearing list lip seal structural representation that background section is referred in the present invention
Figure；
Fig. 2 is the schematic diagram of double row spherical roller bearing two-lid sealing structure provided by the present invention；
Fig. 3 is the structural representation of sealing ring in the present invention；
In figure：
1-1, sealing ring, 1-2, pressing plate, 1-3, sealing ring, 1-4, bearing (ball) cover, 1-5 and double row spherical roller bearing sheet
Body, 1-6, lip, 1-7, waist；
2-1, sealing ring, 2-2, pressing plate, 2-3, sealing ring, 2-4, bearing (ball) cover, 2-5 and double row spherical roller bearing sheet
Body；
2-31, sealing ring top, 2-32, bending waist, 2-33, vertical transition part, 2-34, sealing ring bottom, 2-35, the
One sealing lip, 2-36, the second sealing lip, 2-37, turn.
Specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
Embodiment 1：A kind of double row spherical roller bearing two-lid sealing structure, its structure is as shown in Figures 2 and 3, including interior
Portion sealing ring 2-1, sealing ring 2-1 top are pressing plate 2-2, and pressing plate 2-2 inner sides are sealing ring 2-3, bearing (ball) cover 2-4 and double-row-ball
Face roller bearing body 2-5；
Bearing (ball) cover 2-4 is located at sealing ring 2-3 tops.Wherein, sealing ring 2-3 includes integrally formed sealing ring top 2-
31, sealing ring top 2-31 is connected with one end of bending waist 2-32, the other end and vertical transition part 2- of bending waist 2-32
33 airtight connections, vertical transition part 2-33 is connected with sealing ring bottom 2-34；
The lower surface of sealing ring bottom 2-34 has the first sealing lip 2-35 and the second sealing lip 2-36.
Meanwhile, sealing ring 2-3 can be nitrile rubber or hydrogenation nitrile rubber material.
There are two turns 2-37, two turn 2-37 to be located at the first sealing lip 2- respectively in the 2-34 of sealing ring bottom
35 and second sealing lip 2-36 top.
Sealing ring of the invention, after vulcanizing treatment is carried out, loads turn 2-37 by two openings, installs bullet
Breach is filled with resin glue after spring coil, and original two openings form seal form after resin adhesive curing.Compared to former list lip Single spring
There are two benefits for coil structures, one is that turn will not fall off, two is that turn can not be corroded.
Principle of the invention is：When being moved radially, two magnitudes of interference of lip of sealing ring 2-3 can also be protected main shaft
Hold, there is direction bending waist 2-32 to extend or rotate, and another direction because bending waist 2-32 be in compression or
Rotate, so meeting after main shaft moves radially generation, compensates, it is ensured that the sealing effectiveness of sealing ring 2-3 to moving radially.
Again because the anti-eccentric ability for having two presence of sealing lip, sealing ring is also greatly increased, so further
Improve sealing effectiveness.
Embodiment 2：A kind of wind-driven generator, the wind-driven generator has main shaft, and main shaft relies on double row spherical roller bearing
It is integrated with bearing block assembling, wherein, described double row spherical roller bearing has the two-lid sealing structure described in embodiment 1.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or uses the present invention.
Various modifications to embodiment will be apparent for those skilled in the art, as defined herein general
Principle can in other embodiments be realized, is not described in detail without departing from the spirit or scope of the present invention
The part presented with partial enlargement, is prior art, is not repeated herein.Therefore, the present invention is not intended to be limited to herein
These shown embodiments, and it is to fit to the most wide scope consistent with principles disclosed herein and feature.
Claims (6)
1. a kind of double row spherical roller bearing two-lid sealing structure, including inner sealing ring, sealing ring top is pressing plate, in pressing plate
Side is sealing ring, bearing (ball) cover and double row spherical roller bearing body, it is characterised in that
The sealing ring includes sealing ring top, and sealing ring top is connected with one end of bending waist, bends the other end of waist
With vertical transition part airtight connection, vertical transition part is connected with sealing ring bottom；
The lower surface of sealing ring bottom has the first sealing lip and the second sealing lip.
2. double row spherical roller bearing two-lid sealing structure according to claim 1, it is characterised in that the sealing ring top
Portion, bending waist, vertical transition part, sealing ring bottom, the first sealing lip and the second sealing lip are formed in one.
3. double row spherical roller bearing two-lid sealing structure according to claim 1, it is characterised in that the sealing ring is
Nitrile rubber material.
4. double row spherical roller bearing two-lid sealing structure according to claim 1, it is characterised in that the sealing ring is
Hydrogenation nitrile rubber material.
5. double row spherical roller bearing two-lid sealing structure according to claim 1, it is characterised in that the sealing ring bottom
There are two turns, two turns are located at the first sealing lip and the second sealing lip top in portion.
6. a kind of wind-driven generator, the wind-driven generator has main shaft, and main shaft is filled by double row spherical roller bearing with bearing block
With being integrated, it is characterised in that described double row spherical roller bearing is the biserial sphere rolling described in claim any one of 1-3
Sub- bearing two-lid sealing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145921.8U CN206221514U (en) | 2016-10-21 | 2016-10-21 | A kind of double row spherical roller bearing two-lid sealing structure and wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621145921.8U CN206221514U (en) | 2016-10-21 | 2016-10-21 | A kind of double row spherical roller bearing two-lid sealing structure and wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206221514U true CN206221514U (en) | 2017-06-06 |
Family
ID=58788867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621145921.8U Expired - Fee Related CN206221514U (en) | 2016-10-21 | 2016-10-21 | A kind of double row spherical roller bearing two-lid sealing structure and wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206221514U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402166A (en) * | 2016-10-21 | 2017-02-15 | 山东中车风电有限公司 | Double-row spherical roller bearing double-lip sealing structure and wind driven generator |
-
2016
- 2016-10-21 CN CN201621145921.8U patent/CN206221514U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402166A (en) * | 2016-10-21 | 2017-02-15 | 山东中车风电有限公司 | Double-row spherical roller bearing double-lip sealing structure and wind driven generator |
| CN106402166B (en) * | 2016-10-21 | 2020-10-30 | 山东中车风电有限公司 | Double-row spherical roller bearing double-lip sealing structure and wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170606 Termination date: 20211021 |