CN208431373U - A kind of associated sealing arrangement for bearings - Google Patents
A kind of associated sealing arrangement for bearings Download PDFInfo
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- CN208431373U CN208431373U CN201820621702.5U CN201820621702U CN208431373U CN 208431373 U CN208431373 U CN 208431373U CN 201820621702 U CN201820621702 U CN 201820621702U CN 208431373 U CN208431373 U CN 208431373U
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- sealing
- end cover
- bearing
- bearings
- arrangement
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Abstract
The utility model discloses a kind of associated sealing arrangement for bearings, including end cover, sealing clamp and sealing ring, and first sealing fixed by 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 utility model is by adding the second sealing, second sealing is with end cover clearance fit and by opening up through-hole in the second sealing, second sealing is set to realize the effect for scraping grease with main shaft rotation, avoid the blocking of lubricant grease, and enable waste oil that the oil film seal effect for improving the first sealing to the lip position of the first sealing is smoothly discharged.The utility model structure is simple, at low cost, and sealing effect is good.
Description
Technical field
The utility model relates to bearing seal technical fields, more particularly to a kind of associated sealing arrangement for bearings.
Background technique
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 guarantee that bearing moistens
It is sliding sufficiently to need to be maintained at lubricating grease in base bearing and bearing block cavity, by installing lubricant grease sealing system, guarantee 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 directly contacted and are rotated about with positioning 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 positioning ring, year in year out
Month after month, can make to generate scratch at the contact position on the positioning ring of bearing front and back, grease can be by letting out at these scratches.It scrapes
Positioning 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.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of associated sealing arrangement for bearings, make it have good lubrication effect
Fruit, 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 utility model provides a kind of associated sealing arrangement for bearings, including end cover, sealing pressure
Plate and sealing ring, and first sealing fixed by the end cover and sealing clamp, further include be fixed at it is described
The second sealing on sealing ring, second sealing are located at the paraxial of first sealing and hold side, and second sealing and institute
State clearance fit between end cover.
As a kind of improvement of the utility model, matched between second sealing and end cover using concaveconvex structure gap
It closes.
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 groove matched with the bulge.
It is further improved, described first is sealed into lip packing.
It is further improved, described first is sealed into clamping 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, offers gas vent on the end cover.
By adopting such a design, the utility model at least has the following advantages:
1, the utility model associated sealing arrangement for bearings is not revolved by the first sealing of setting and the second sealing, the first sealing with main shaft
Turn, realizes the oil film seal with sealing ring；The clearance fit of second sealing and end cover is being rotated with the rotation realization of main shaft
The effect for scraping grease is played in the process, avoids the blocking of lubricant grease.
2, the utility model associated sealing arrangement for bearings by the second sealing setting through bearing side and the first sealed sides
Through-hole enables the waste oil in bearing that the oil film seal effect for improving the first sealing to the lip position of the first sealing is smoothly discharged
Fruit.
3, it is intracorporal to reduce seal chamber by the way that gas vent is arranged on end cover for the utility model associated sealing arrangement for bearings
Pressure 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 utility model, can prevent
The powder that second sealing and end cover rub off enters in seal cavity, extends the service life of bearing.
Detailed description of the invention
Above-mentioned is only the general introduction of technical solutions of the utility model, in order to better understand the technology hand of the utility model
Section, below in conjunction with attached drawing, the utility model is described in further detail with specific embodiment.
Fig. 1 is the structural schematic diagram of the utility model associated sealing arrangement for bearings.
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 embodiment
Bearing needs to obtain enough lubrications in its rotation process as important rotary part, generally in installation bearing
Bearing block cavity in injection lubricating grease realize bearing lubrication.In order to guarantee that bearing lubrication is abundant, need for lubricating grease to be maintained at
In the cavity that main shaft and bearing block are formed, by installing bearing seal system, guarantee that bearing can obtain good lubrication.This is practical
Novel bearing seal is exactly to improve on the basis of existing associated sealing arrangement for bearings, can realize and lubricate in bearing
The excellent sealing of grease.Specific structure is as follows.
Referring to shown in attached Fig. 1 and 2, the utility model associated sealing arrangement for bearings, including end cover 3, sealing clamp 4 and sealing
Ring 7, and first sealing 5 fixed by the end cover 3 and sealing clamp 4.The end cover 3 is bolted
On bearing block 1, for providing main support for the sealing device.The sealing ring 7 is fixed on main shaft 8, with main shaft 8
It rotates and rotates.
The sealing of this in the present embodiment first 5 seals for lip shape clamping cloth, 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 utility model is that the associated sealing arrangement for bearings further includes be fixed on the sealing ring 7
Two sealings 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.It is described
Second sealing 6 is located at the paraxial of first sealing 5 and holds side, and gap is matched between second sealing 6 and the end cover 3
It closes.
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
The contact surface of two sealings 6 is equipped with groove matched with the bulge, i.e., adopts between described second sealing 6 and end cover 3
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 rouge, enables waste oil to be smoothly discharged.
It is further improved, is additionally provided with the through-hole 9 that can run through bearing side and the first sealed sides 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
The oil film seal effect for guaranteeing the first sealing 5 to the lip position of the first sealing 5, lubricant grease can be smoothly discharged in lubricating oil rouge
Discharge path as shown in attached drawing 3.
In addition, gas vent 10 is offered on the end cover 3 in order to avoid pressure is excessive in seal cavity in bearing 2,
The intracorporal pressure of seal chamber 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.
The utility model associated sealing arrangement for bearings is by the way that on the basis of the existing first sealing, the second sealing of setting, this second
The clearance fit of sealing and end cover is realized with the rotation of main shaft and plays the effect for scraping grease in rotary course, avoids moistening
The blocking of lubricating oil rouge.And run through the through-hole of bearing side and the first sealed sides by being arranged in the second sealing, make useless in bearing
The oil film seal effect that the first sealing is improved to the lip position of the first sealing can be smoothly discharged in grease.
The utility model associated sealing arrangement for bearings also passes through increase exhaust system, i.e., gas vent, energy are arranged on end cover
The intracorporal pressure of seal chamber is reduced, conducive to lubricant grease is filled into seal cavity, and improves the sealing performance of the sealing device.
The utility model is also specifically designed by increasing flange to existing sealing ring, can prevent the second sealing and sealed end
It covers the powder rubbed off to enter in seal cavity, extends the service life of bearing.
The utility model structure is simple, at low cost, can play better seal effect.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation, those skilled in the art make a little simple modification, equivalent variations or modification using the technology contents of the disclosure above,
It falls within the protection scope of the present utility model.
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 the first fixed sealing of pressing plate, which is characterized in that it 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 groove matched with the bulge.
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 shape
Sealing.
5. associated sealing arrangement for bearings according to claim 4, which is characterized in that described first is sealed into clamping 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 |
|---|---|---|---|
| CN201820621702.5U CN208431373U (en) | 2018-04-27 | 2018-04-27 | A kind of associated sealing arrangement for bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820621702.5U CN208431373U (en) | 2018-04-27 | 2018-04-27 | A kind of associated sealing arrangement for bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208431373U true CN208431373U (en) | 2019-01-25 |
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ID=65102419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820621702.5U Active CN208431373U (en) | 2018-04-27 | 2018-04-27 | A kind of associated sealing arrangement for bearings |
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| Country | Link |
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| CN (1) | CN208431373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343746A (en) * | 2018-04-27 | 2018-07-31 | 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 CN201820621702.5U patent/CN208431373U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108343746A (en) * | 2018-04-27 | 2018-07-31 | 国电联合动力技术有限公司 | A kind of associated sealing arrangement for bearings |
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