CN108343746A - A kind of associated sealing arrangement for bearings - Google Patents
A kind of associated sealing arrangement for bearings Download PDFInfo
- Publication number
- CN108343746A CN108343746A CN201810393542.8A CN201810393542A CN108343746A CN 108343746 A CN108343746 A CN 108343746A CN 201810393542 A CN201810393542 A CN 201810393542A CN 108343746 A CN108343746 A CN 108343746A
- Authority
- CN
- China
- Prior art keywords
- sealing
- end cover
- bearing
- bearings
- arrangement
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 143
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 239000004744 fabric Substances 0.000 claims description 3
- 239000004519 grease Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 14
- 239000000314 lubricant Substances 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 8
- 230000000903 blocking effect Effects 0.000 abstract description 4
- 238000007790 scraping Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 14
- 238000005461 lubrication Methods 0.000 description 8
- 230000001050 lubricating effect Effects 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/324—Arrangements for lubrication or cooling of the sealing itself
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a kind of associated sealing arrangement for bearings, including end cover, sealing clamp and sealing ring, and pass through fixed first sealing of end cover and sealing clamp, it further include the second sealing being fixed on sealing ring, second sealing is located at the paraxial of the first sealing and holds side, and clearance fit between the second sealing and end cover.Concaveconvex structure clearance fit is used between second sealing and end cover, and the second sealing is equipped with the through-hole through bearing side and the first sealed sides.The external peripheral surface of the sealing ring is equipped with flange close to the side of bearing.The present invention is by adding the second sealing, second sealing in the second sealing with end cover clearance fit and by offering through-hole, second sealing is set to realize the effect for scraping grease with main shaft rotation, avoid the blocking of lubricant grease, and waste oil is enable smoothly to be expelled to the lip position of the first sealing, improve the oil film seal effect of the first sealing.The configuration of the present invention is simple, at low cost, sealing effect is good.
Description
Technical field
The present invention relates to bearing seal technical fields, more particularly to a kind of associated sealing arrangement for bearings.
Background technology
Wind driven generation set main shaft holds the important rotary part for belonging to Wind turbines, needs to obtain foot in its rotation process
Enough lubrications, injection lubricating grease realizes bearing lubrication generally in the bearing block cavity of installation base bearing.In order to ensure that bearing moistens
It is sliding abundant, it needs lubricating grease being maintained in base bearing and bearing block cavity, by installing lubricant grease sealing system, ensures axis
Good lubrication can be obtained and waste oil can be made to be discharged by holding.
At present, wind driven generation set main shaft, which holds sealing, mainly the forms such as V-type dustband, outside framework oil seal, labyrinth sealing
These sealing elements are in direct contact and rotate about with locating ring before and after bearing, reach close by forming oil film with positioning interannular
The effect of envelope.In the process, before and after V-type dustband, outside framework oil seal and bearing inevitably there is friction in locating ring, year in year out
Month after month, can make to generate scratch at the contact position before and after bearing on locating ring, grease can be by letting out at these scratches.It scrapes
Locating ring possibility all very littles before and after bearing are repaired or replaced to trace, this results in lubricant grease and largely wastes, bearing once generating
It cannot get good lubrication, or even burn out a bearing, cause stopping accident.
It can be seen that above-mentioned existing associated sealing arrangement for bearings is in structure and use, it is clear that there are still there is inconvenient and defect,
And it needs to be further improved.A kind of new associated sealing arrangement for bearings how is founded, good lubricant effect is made it have, and
Waste oil can be made to be discharged, becoming current industry pole needs improved target.
Invention content
The technical problem to be solved in the present invention is to provide a kind of associated sealing arrangement for bearings, make it have good lubricant effect,
And waste oil can be made to be discharged, to overcome the shortcomings of existing bearing seal structure.
In order to solve the above technical problems, the present invention provides a kind of associated sealing arrangement for bearings, including end cover, sealing clamp and
Sealing ring, and further include being fixed at the sealing by fixed first sealing of the end cover and sealing clamp
The second sealing on ring, second sealing are located at first the paraxial of sealing and hold side, and second sealing with it is described close
Clearance fit between sealing end lid.
As an improvement of the present invention, concaveconvex structure clearance fit is used between second sealing and end cover.
It is further improved, second sealing and the contact surface of end cover are equipped with protrusion, the end cover and second
The contact surface of sealing is equipped with and the matched groove of protrusion.
It is further improved, described first is sealed into lip packing.
It is further improved, described first is sealed into folder cloth sealing.
It is further improved, second sealing is equipped with the through-hole through bearing side and the first sealed sides.
It is further improved, second sealing is equipped with several circular described through-holes.
It is further improved, the external peripheral surface of the sealing ring is equipped with flange close to the side of bearing.
It is further improved, second sealing is interference fitted with sealing ring.
It is further improved, gas vent is offered on the end cover.
By adopting such a design, the present invention has at least the following advantages：
1, associated sealing arrangement for bearings of the present invention is not rotated by the first sealing of setting and the second sealing, the first sealing with main shaft,
Realize the oil film seal with sealing ring；The clearance fit of second sealing and end cover is being rotated through with the rotation realization of main shaft
The effect for scraping grease is played in journey, avoids the blocking of lubricant grease.
2, associated sealing arrangement for bearings of the present invention runs through the through-hole of bearing side and the first sealed sides by being arranged in the second sealing,
So that the waste oil in bearing is smoothly expelled to the lip position of the first sealing, improves the oil film seal effect of the first sealing.
3, associated sealing arrangement for bearings of the present invention can reduce the pressure in seal cavity by the way that gas vent is arranged on end cover
Power conducive to lubricant grease is filled into seal cavity, and improves the sealing performance of the sealing device.
4, flange is arranged by the side on the external peripheral surface of sealing ring and close to bearing in the present invention, can prevent second
The powder that sealing and end cover rub off enters in seal cavity, extends the service life of bearing.
Description of the drawings
The above is merely an overview of the technical solutions of the present invention, in order to better understand the technical means of the present invention, below
In conjunction with attached drawing, the present invention is described in further detail with specific implementation mode.
Fig. 1 is the structural schematic diagram of associated sealing arrangement for bearings of the present invention.
Fig. 2 is the enlarged drawing of part A in Fig. 1.
Fig. 3 is the schematic diagram for showing lubricant grease discharge path in Fig. 2.
Specific implementation mode
Bearing needs as important rotary part in its rotation process to obtain enough lubrications, generally in installation bearing
Bearing block cavity in injection lubricating grease realize bearing lubrication.In order to ensure that bearing lubrication is abundant, need lubricating grease being maintained at
In the cavity that main shaft and bearing block are formed, by installing bearing seal system, ensure that bearing can obtain good lubrication.The present invention
Associated sealing arrangement for bearings is exactly to be improved on the basis of existing associated sealing arrangement for bearings, can be realized to lubricant grease in bearing
Excellent sealing.Concrete structure is as follows.
With reference to shown in attached Fig. 1 and 2, associated sealing arrangement for bearings of the present invention, including end cover 3, sealing clamp 4 and sealing ring 7,
And pass through the end cover 3 and the sealing of sealing clamp 4 fixed first 5.The end cover 3 is bolted bearing
On seat 1, for providing main support for the sealing device.The sealing ring 7 is fixed on main shaft 8, with the rotation of main shaft 8
And it rotates.
The sealing of this in the present embodiment first 5 presss from both sides cloth sealing for lip, and outer end is fixed at one end of end cover 3,
Its inner end with the sealing ring 7 is movable contacts, for realizing the oil film seal effect of the sealing device.The sealing clamp 4 is solid
Be scheduled on the outside of end cover 3, for the first sealing 5 to be tightly fixed to end cover 3, make the first sealing 5 will not with it is close
Seal ring 7 and main shaft 8 rotate together.
The improvement of the present invention is, the associated sealing arrangement for bearings further include be fixed on the sealing ring 7 it is second close
Envelope 6, second sealing 6 are interference fitted with sealing ring 7, then the second sealing 6 is rotated with the rotation of sealing ring 7.Described second
Sealing 6 is located at the paraxial of first sealing 5 and holds side, and clearance fit between second sealing 6 and the end cover 3.
Second sealing 6 described in the present embodiment and the contact surface of end cover 3 are equipped with protrusion, the end cover 3 and the
Two sealing 6 contact surface be equipped with the matched groove of protrusion, i.e., it is described second seal 6 and end cover 3 between adopt
With concaveconvex structure clearance fit.In this way under the drive of main shaft 8, second sealing 6 with sealing ring 7 rotate, due to end cover 3 with
Clearance fit between second sealing 6, second sealing 6 can play the effect for scraping grease in rotary course, avoid lubricating oil
The blocking of fat, enables waste oil to be smoothly discharged.
It is further improved, the through-hole 9 that can run through bearing side and the first sealed sides is additionally provided in second sealing 6.This is logical
Hole 9 can be one or several, can be round hole or other shapes of through-hole, main function is the profit made in bearing 2
Lubricating oil fat can smoothly be expelled to the lip position of the first sealing 5, ensure the oil film seal effect of the first sealing 5, lubricant grease
Discharge path see shown in attached drawing 3.
In addition, in order to avoid pressure is excessive in seal cavity in bearing 2, gas vent 10 is offered on the end cover 3,
The pressure in seal cavity can be reduced in this way, conducive to filling lubricant grease and improving the sealing performance of the sealing device.
In addition, the powder rubbed off between the second sealing 6 and end cover 3 in order to prevent enters the seal chamber of bearing 2
In vivo, the side on the external peripheral surface of the sealing ring 7 and close to bearing is equipped with flange 11, powder can be prevented to enter seal chamber
In vivo, the service life of bearing is influenced.
Associated sealing arrangement for bearings of the present invention is by the way that on the basis of existing first sealing, setting second seals, second sealing
With the clearance fit of end cover, is realized with the rotation of main shaft and play the effect for scraping grease in rotary course, avoid lubricating oil
The blocking of fat.And by the way that the through-hole through bearing side and the first sealed sides is arranged in the second sealing, make the waste oil in bearing
It can be smoothly expelled to the lip position of the first sealing, improve the oil film seal effect of the first sealing.
Associated sealing arrangement for bearings of the present invention also by increasing exhaust system, i.e., gas vent is arranged on end cover, can reduce
Pressure in seal cavity conducive to lubricant grease is filled into seal cavity, and improves the sealing performance of the sealing device.
The present invention is also specifically designed by increasing flange to existing sealing ring, and the second sealing and end cover can be prevented to rub
The powder wiped enters in seal cavity, extends the service life of bearing.
The configuration of the present invention is simple, it is at low cost, better seal effect can be played.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, this
Field technology personnel make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above, all fall within this hair
In bright protection domain.
Claims (10)
1. a kind of associated sealing arrangement for bearings, including end cover, sealing clamp and sealing ring, and pass through the end cover and close
Seal fixed first sealing of pressing plate, which is characterized in that further include the second sealing being fixed on the sealing ring, described the
Two sealings are located at the paraxial of first sealing and hold side, and clearance fit between second sealing and the end cover.
2. associated sealing arrangement for bearings according to claim 1, which is characterized in that adopted between second sealing and end cover
With concaveconvex structure clearance fit.
3. associated sealing arrangement for bearings according to claim 2, which is characterized in that contact of second sealing with end cover
Face is equipped with protrusion, and the contact surface that the end cover and second seal is equipped with and the matched groove of protrusion.
4. associated sealing arrangement for bearings according to any one of claims 1 to 3, which is characterized in that described first is sealed into lip
Sealing.
5. associated sealing arrangement for bearings according to claim 4, which is characterized in that described first is sealed into folder cloth sealing.
6. associated sealing arrangement for bearings according to claim 4, which is characterized in that second sealing, which is equipped with, runs through bearing side
With the through-hole of the first sealed sides.
7. associated sealing arrangement for bearings according to claim 6, which is characterized in that it is round that second sealing is equipped with several
The through-hole.
8. associated sealing arrangement for bearings according to claim 1, which is characterized in that the external peripheral surface of the sealing ring is by paraxial
The side held is equipped with flange.
9. associated sealing arrangement for bearings according to claim 8, which is characterized in that second sealing is matched with sealing ring interference
It closes.
10. associated sealing arrangement for bearings according to claim 1, which is characterized in that offer gas vent on the end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393542.8A CN108343746B (en) | 2018-04-27 | 2018-04-27 | Bearing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810393542.8A CN108343746B (en) | 2018-04-27 | 2018-04-27 | Bearing sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108343746A true CN108343746A (en) | 2018-07-31 |
| CN108343746B CN108343746B (en) | 2024-09-10 |
Family
ID=62955285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810393542.8A Active CN108343746B (en) | 2018-04-27 | 2018-04-27 | Bearing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108343746B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054636A (en) * | 2000-08-11 | 2002-02-20 | Sankyo Seiki Mfg Co Ltd | Bearing device |
| JP2006010042A (en) * | 2004-06-29 | 2006-01-12 | Ntn Corp | Sealed type bearing unit |
| JP2009138879A (en) * | 2007-12-07 | 2009-06-25 | Ntn Corp | Railroad vehicle axle bearing device |
| CN202199493U (en) * | 2011-08-27 | 2012-04-25 | 鞍山重型矿山机器股份有限公司 | Shaft type vibrator of vibrating screen |
| CN102780303A (en) * | 2012-07-27 | 2012-11-14 | 抚顺煤矿电机制造有限责任公司 | Motor shaft sealing structure with high protection grade |
| CN102954194A (en) * | 2011-08-30 | 2013-03-06 | 常州市瑞泰工程机械有限公司 | Railway vehicle traveling gearbox sealing structure |
| CN203130812U (en) * | 2013-04-12 | 2013-08-14 | 丁建清 | Bearing device |
| CN203214888U (en) * | 2013-04-24 | 2013-09-25 | 太原重工股份有限公司 | Seal device for reducer rotation shaft combination |
| CN103552827A (en) * | 2013-10-30 | 2014-02-05 | 王雅谷 | Three-lip combined sealing device of carrier roller |
| CN204253636U (en) * | 2014-11-26 | 2015-04-08 | 延安守山机械制造有限公司 | A kind of leakage proof bearing cap |
| CN206111439U (en) * | 2016-10-31 | 2017-04-19 | 三一重型能源装备有限公司 | Main bearing seal structure, wind turbine generator system |
| CN208431373U (en) * | 2018-04-27 | 2019-01-25 | 国电联合动力技术有限公司 | A kind of associated sealing arrangement for bearings |
-
2018
- 2018-04-27 CN CN201810393542.8A patent/CN108343746B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054636A (en) * | 2000-08-11 | 2002-02-20 | Sankyo Seiki Mfg Co Ltd | Bearing device |
| JP2006010042A (en) * | 2004-06-29 | 2006-01-12 | Ntn Corp | Sealed type bearing unit |
| JP2009138879A (en) * | 2007-12-07 | 2009-06-25 | Ntn Corp | Railroad vehicle axle bearing device |
| CN202199493U (en) * | 2011-08-27 | 2012-04-25 | 鞍山重型矿山机器股份有限公司 | Shaft type vibrator of vibrating screen |
| CN102954194A (en) * | 2011-08-30 | 2013-03-06 | 常州市瑞泰工程机械有限公司 | Railway vehicle traveling gearbox sealing structure |
| CN102780303A (en) * | 2012-07-27 | 2012-11-14 | 抚顺煤矿电机制造有限责任公司 | Motor shaft sealing structure with high protection grade |
| CN203130812U (en) * | 2013-04-12 | 2013-08-14 | 丁建清 | Bearing device |
| CN203214888U (en) * | 2013-04-24 | 2013-09-25 | 太原重工股份有限公司 | Seal device for reducer rotation shaft combination |
| CN103552827A (en) * | 2013-10-30 | 2014-02-05 | 王雅谷 | Three-lip combined sealing device of carrier roller |
| CN204253636U (en) * | 2014-11-26 | 2015-04-08 | 延安守山机械制造有限公司 | A kind of leakage proof bearing cap |
| CN206111439U (en) * | 2016-10-31 | 2017-04-19 | 三一重型能源装备有限公司 | Main bearing seal structure, wind turbine generator system |
| CN208431373U (en) * | 2018-04-27 | 2019-01-25 | 国电联合动力技术有限公司 | A kind of associated sealing arrangement for bearings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108343746B (en) | 2024-09-10 |
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