CN104295749B - A kind of associated sealing arrangement for bearings - Google Patents
A kind of associated sealing arrangement for bearings Download PDFInfo
- Publication number
- CN104295749B CN104295749B CN201410510913.8A CN201410510913A CN104295749B CN 104295749 B CN104295749 B CN 104295749B CN 201410510913 A CN201410510913 A CN 201410510913A CN 104295749 B CN104295749 B CN 104295749B
- Authority
- CN
- China
- Prior art keywords
- ring
- annular groove
- disc spring
- bearing
- 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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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention belongs to rotatable parts technical field of sealing technology, disclose a kind of associated sealing arrangement for bearings.Described bearing inner race is provided with rotating shaft, its outer ring is provided with bearing block, it is characterized in that, described sealing device includes the annular groove being arranged on the outer face of described bearing block, described annular groove is coaxial with rotating shaft, the inner ring surface of described annular groove is set to the mouth diameters conical surface less than base diameter, the disc spring V-shaped ring coordinated with its inner ring surface it is provided with in described annular groove, in described rotating shaft, back-up ring is installed, the outer face of the described bearing inner race of one end laminating of described back-up ring, the other end of described back-up ring stretches out the outer face of described bearing block, described disc spring V-shaped ring is fixed with back-up ring.This apparatus structure is simple, and sealing effectiveness is good, is particularly suited for the oil sealing of self-aligning roller bearing, and service life is long.
Description
Technical field
The invention belongs to rotatable parts technical field of sealing technology, particularly to a kind of associated sealing arrangement for bearings.
Background technology
At present, the sealing commonly used rotating shaft lip-type packing of bearing, grease it is lubricated, lubrication
Fat is typically chosen 1.5# or 2# fat；But, all there is significantly leakage in almost all of bearing；Particularly
The leakage of self-aligning bearing is even more serious, traces it to its cause, and self-aligning bearing has good regulation of mental activities, can make
Rotating shaft has certain deflection, and the deflection of rotating shaft can directly result in the extrusion of lip-type packing, from
And loss of seal effect, and the slot leakage that grease produces along sealed ring deformation.Therefore, it is necessary to grind
Study carefully a kind of new sealing device and solve the sealing of bearing, the particularly sealing of self-aligning bearing.
Summary of the invention
It is an object of the invention to provide a kind of associated sealing arrangement for bearings, this apparatus structure is simple, sealing effectiveness
Well, being particularly suited for the oil sealing of self-aligning bearing, service life is long.
For reaching above-mentioned technical purpose, the present invention adopts the following technical scheme that and is achieved.
A kind of associated sealing arrangement for bearings, described bearing inner race is provided with rotating shaft, and its outer ring is provided with bearing block,
It is characterized in that, described sealing device includes the annular groove being arranged on the outer face of described bearing block, institute
Stating annular groove coaxial with rotating shaft, it is straight less than bottom that the inner ring surface of described annular groove is set to mouth diameters
The conical surface in footpath, is provided with the disc spring V-shaped ring coordinated with its inner ring surface in described annular groove, described turn
Back-up ring is installed on axle, the outer face of the described bearing inner race of one end laminating of described back-up ring, described back-up ring
The other end stretches out the outer face of described bearing block, and described disc spring V-shaped ring is fixed with back-up ring.
The feature of the technical program and further improvement is that:
Described bearing is self-aligning bearing, and described self-aligning bearing is provided with spherical raceway, described annular groove
Inner ring surface is set to sphere, and the medial surface of described disc spring V-shaped ring is set to the inner ring surface with annular groove
The sphere coordinated, the inner ring surface of described annular groove, spherical raceway are same with the medial surface of disc spring V-shaped ring
The centre of sphere.
The external part diameter step less than inner diameter, the external part of described back-up ring it is provided with on described back-up ring
Threaded limited location volution, is provided with gap between described spacing volution and the step surface of back-up ring, described
The inner headed face of disc spring V-shaped ring is provided with inside bending plate, the bending board of described disc spring V-shaped ring
Enter the gap between described spacing volution and the step surface of back-up ring.
The outer end of described back-up ring is fixed with locking nut.
The associated sealing arrangement for bearings of the present invention, is sealed position by two and constitutes, wherein disc spring V-shaped ring and axle
Bearing constitutes Spherical Clearance sealing pair, and the helicla flute on back-up ring constitutes helixseal, and Spherical Clearance seals and is
Primary seal, helixseal is secondary sealing.Helixseal seals as pair, and its Main Function is: utilize spiral shell
Oils and fats sent back to by bar, reduces the pressure head of the oils and fats flowing through its surface.Spherical Clearance seals as primary seal, structure
Become the gap between two parts of sealing pair to be about 0.1mm, gap is full of oils and fats, can either be with this
Reach sealing effectiveness, the effect of lubrication can be played again simultaneously.When bearing normally works, disc spring V-shaped ring
With bearing rotary；When bearing plays regulation of mental activities effect, disc spring V-shaped ring swings therewith.Owing to sphere is close
The sphere centre of envelope pair is concentric with bearing spherical surface center, so the swing of the two is consistent and synchronizes
, the gap between such ball face sealing pair can keep constant, i.e. sealing property is unaffected, simultaneously
Do not have stuck yet.Gap is there is between two parts of sealing pair, so the most hardly
Produce abrasion, and the friction between grease is negligible, and this guarantees the long-life of sealing pair.
Accompanying drawing explanation
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of a kind of associated sealing arrangement for bearings of the present invention；
Fig. 2 is the structural representation of partial enlargement in Fig. 1；
Fig. 3 is the structural representation of the disc spring V-shaped ring in Fig. 1；
Fig. 4 is the cross-sectional schematic of Fig. 3；
In figure: 1, bearing block；2, bearing；3, disc spring V-shaped ring；4, back-up ring；5, spacing volution；
6, locking nut；7, rotating shaft；8, annular groove.
Detailed description of the invention
With reference to Fig. 1, Fig. 2, for the structural representation of a kind of associated sealing arrangement for bearings of the present invention；This bearing 2
Inner ring is provided with rotating shaft 7, and its outer ring is provided with bearing block 1, and this sealing device includes being arranged on bearing block 1
The annular groove 8 of outer face, annular groove 8 is coaxial with rotating shaft 7, and the inner ring surface of annular groove 8 is arranged
For mouth diameters less than the conical surface of base diameter, in annular groove 8, it is provided with the dish coordinated with its inner ring surface
Spring V-shaped ring 3, rotating shaft 7 is provided with back-up ring 4, the outer face of one end laminating bearing inner race of back-up ring 4,
The outer face of the other end projecting shaft bearing 1 of back-up ring 4, disc spring V-shaped ring 8 is fixed with back-up ring 4.
When being self-aligning bearing when needing the bearing 2 sealed, self-aligning bearing is provided with spherical raceway, annular
The inner ring surface of groove 8 is set to sphere, and the medial surface of disc spring V-shaped ring 3 is set to and annular groove 8
The sphere that inner ring surface coordinates, the inner ring surface of annular groove 8, spherical raceway are interior with disc spring V-shaped ring 3
The same centre of sphere in side.
Wherein, back-up ring 4 is provided with the external part diameter step less than inner diameter, stretching out of back-up ring 4
Hold threaded limited location volution 5, between spacing volution 5 and the step surface of back-up ring 4, be provided with gap, dish
The inner headed face of spring V-shaped ring 3 is provided with inside bending plate, and the bending plate of disc spring V-shaped ring 3 snaps in
Gap between spacing volution 5 and the step surface of back-up ring 4, makes disc spring V-shaped ring 3 fix with back-up ring 4
Together.
Wherein, the outer end of back-up ring 4 is fixed with locking nut 6.
The associated sealing arrangement for bearings of the present invention, is sealed positions by two and constitutes, wherein disc spring V-shaped ring 3 with
Bearing block 1 constitutes Spherical Clearance sealing pair, and the helicla flute on back-up ring 4 constitutes helixseal, Spherical Clearance
Sealing is primary seal, and helixseal is secondary sealing.Helixseal seals as pair, and its Main Function is:
Utilize screw rod to send oils and fats back to, reduce the pressure head of the oils and fats flowing through its surface.Spherical Clearance seals as main close
Envelope, the gap constituted between two parts of sealing pair is about 0.1mm, is full of oils and fats in gap, can
Enough reach sealing effectiveness with this, the effect of lubrication can be played again simultaneously.When bearing 2 normally works, disc spring
V-shaped ring 3 rotates with the inner ring of bearing 2；When bearing 2 plays regulation of mental activities effect, disc spring V-shaped ring 3
Swing therewith.Due to the secondary sphere centre of ball face sealing with bearing spherical surface center with the centre of sphere, so two
The swing of person is consistent and synchronizes, and the gap between such ball face sealing pair can keep constant, institute
Unaffected with sealing property, impact on conventional seals when eliminating bearing regulation of mental activities from structure design,
Do not have stuck phenomenon simultaneously yet.Gap is there is between two parts of sealing pair, so between the two
The friction produced hardly between abrasion, and grease is negligible, and this guarantees sealing pair
Long-life.
Even if bearing 2 is under some extreme operating condition or under contingencies, such as: rotating shaft occurs axial string
Dynamic, owing to disc spring V-shaped ring 3 is to use disc spring structure, after it is by axial force, there is elastic deformation,
The time of this deformation is extremely short, and is also only limited by disc spring V-shaped ring 3 between sealing pair after deforming
Elastic force, the sealing pair thus caused abrasion be limited, disc spring structure then can eliminate under extreme operating condition
Sealing pair is hit and unstable wear or damage.
This sealing device structure is simple, and sealing effectiveness is good, is particularly suited for the oil sealing of self-aligning roller bearing,
Service life is long.
Present invention may also apply to inner ring and install fixing axle, the close of the bearing of the bearing block rotated is installed in its outer ring
Envelope.
Although embodiment of the present invention being described above in association with accompanying drawing, but the present invention not office
Be limited to above-mentioned specific embodiments and applications field, above-mentioned specific embodiments be only schematically,
Directiveness rather than restrictive.Those of ordinary skill in the art under the enlightenment of description,
Without departing from the case of the scope that the claims in the present invention are protected, it is also possible to make a variety of forms,
These belong to the row of present invention protection.
Claims (3)
1. an associated sealing arrangement for bearings, described bearing inner race is provided with rotating shaft, and its outer ring is provided with bearing block,
It is characterized in that, described sealing device includes the annular groove being arranged on the outer face of described bearing block, institute
Stating annular groove coaxial with rotating shaft, it is straight less than bottom that the inner ring surface of described annular groove is set to mouth diameters
The conical surface in footpath, is provided with the disc spring V-shaped ring coordinated with its inner ring surface in described annular groove, described turn
Back-up ring is installed on axle, the outer face of the described bearing inner race of one end laminating of described back-up ring, described back-up ring
The other end stretches out the outer face of described bearing block, and described disc spring V-shaped ring is fixed with back-up ring；
The external part diameter step less than inner diameter, the external part of described back-up ring it is provided with on described back-up ring
Threaded limited location volution, is provided with gap between described spacing volution and the step surface of back-up ring, described
The inner headed face of disc spring V-shaped ring is provided with inside bending plate, the bending board of described disc spring V-shaped ring
Enter the gap between described spacing volution and the step surface of back-up ring.
A kind of associated sealing arrangement for bearings the most according to claim 1, it is characterised in that described bearing is
Self-aligning bearing, described self-aligning bearing is provided with spherical raceway, and the inner ring surface of described annular groove is set to ball
Face, the medial surface of described disc spring V-shaped ring is set to the sphere that the inner ring surface with annular groove coordinates, institute
State the same centre of sphere of medial surface of the inner ring surface of annular groove, spherical raceway and disc spring V-shaped ring.
A kind of associated sealing arrangement for bearings the most according to claim 1, it is characterised in that described back-up ring
Outer end is fixed with locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510913.8A CN104295749B (en) | 2014-09-29 | 2014-09-29 | A kind of associated sealing arrangement for bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510913.8A CN104295749B (en) | 2014-09-29 | 2014-09-29 | A kind of associated sealing arrangement for bearings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295749A CN104295749A (en) | 2015-01-21 |
| CN104295749B true CN104295749B (en) | 2016-09-21 |
Family
ID=52315605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410510913.8A Expired - Fee Related CN104295749B (en) | 2014-09-29 | 2014-09-29 | A kind of associated sealing arrangement for bearings |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295749B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105108775B (en) * | 2015-09-24 | 2017-12-15 | 浙江钱江摩托股份有限公司 | A kind of bearing protection structure of robot |
| JP6602645B2 (en) * | 2015-11-02 | 2019-11-06 | ニッタ株式会社 | Sealing material fixing structure |
| DE102018221310A1 (en) * | 2018-12-10 | 2020-06-10 | Aktiebolaget Skf | Roller bearings |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096850A (en) * | 1960-02-15 | 1963-07-09 | Svenska Aeroplan Ab | Device for lubricating crankshaft and connecting rod bearings by means of a forced-feed lubricator |
| DE102008054265A1 (en) * | 2008-10-31 | 2010-05-06 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | loader |
| CN202561055U (en) * | 2012-02-27 | 2012-11-28 | 北京京城新能源有限公司 | Bearing seal device applied to wind power generation unit main shaft system |
| CN102808857A (en) * | 2012-08-14 | 2012-12-05 | 广东明阳风电产业集团有限公司 | Bearing assembly on transmission shaft of wind driven generator |
| CN204213343U (en) * | 2014-09-29 | 2015-03-18 | 内蒙古久和能源科技有限公司 | A kind of associated sealing arrangement for bearings |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200420819Y1 (en) * | 2006-04-18 | 2006-07-06 | 김한식 | Mechanical compact seal |
-
2014
- 2014-09-29 CN CN201410510913.8A patent/CN104295749B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096850A (en) * | 1960-02-15 | 1963-07-09 | Svenska Aeroplan Ab | Device for lubricating crankshaft and connecting rod bearings by means of a forced-feed lubricator |
| DE102008054265A1 (en) * | 2008-10-31 | 2010-05-06 | Bosch Mahle Turbo Systems Gmbh & Co. Kg | loader |
| CN202561055U (en) * | 2012-02-27 | 2012-11-28 | 北京京城新能源有限公司 | Bearing seal device applied to wind power generation unit main shaft system |
| CN102808857A (en) * | 2012-08-14 | 2012-12-05 | 广东明阳风电产业集团有限公司 | Bearing assembly on transmission shaft of wind driven generator |
| CN204213343U (en) * | 2014-09-29 | 2015-03-18 | 内蒙古久和能源科技有限公司 | A kind of associated sealing arrangement for bearings |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295749A (en) | 2015-01-21 |
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| PB01 | Publication | ||
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160819 Address after: 017000 equipment manufacturing base of Dongsheng District, Erdos City, Inner Mongolia Applicant after: INNER MONGOLIA GEOHO ENERGY EQUIPMENT CO., LTD. Address before: 017000 equipment manufacturing base of Erdos City, the Inner Mongolia Autonomous Region Applicant before: Inner Mongolia Geoho Energy Technology Co., Ltd. |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20190929 |
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| CF01 | Termination of patent right due to non-payment of annual fee |