CN205605652U - sealing structure for bearing - Google Patents
sealing structure for bearing Download PDFInfo
- Publication number
- CN205605652U CN205605652U CN201620199116.7U CN201620199116U CN205605652U CN 205605652 U CN205605652 U CN 205605652U CN 201620199116 U CN201620199116 U CN 201620199116U CN 205605652 U CN205605652 U CN 205605652U
- Authority
- CN
- China
- Prior art keywords
- space
- hole
- sealing structure
- arm
- bearing
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 51
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000004308 accommodation Effects 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 2
- 239000003595 mist Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a seal structure for bearing, including skeleton and the elastic sealing part of adhering to on the skeleton, the skeleton includes radial section, is equipped with the first through-hole that link up on the axial direction on this radial section, and seal structure is still including being located the sealed lid of radial section axial outside, and this sealed lid includes installation department and the arm that sets up at the radial interval, and first space is formed between installation department and arm and communicates with each other with first through-hole, the end of arm support hold in radial section and be equipped with the intercommunication on the arm the second through-hole of first space and bearing outer space can guide the inside gas of bearing or oil mist to discharge the bearing outside through first through-hole and second through-hole like this, has guaranteed the good sealing performance of whole seal structure simultaneously.
Description
Technical field
This utility model relates to technical field of bearings, particularly relates to a kind of sealing structure for bearing.
Background technology
As it is shown in figure 1, be a kind of sealing structure being commonly used in bearing.This sealing structure includes skeleton 1
And it is attached to the elastic sealing element on skeleton 1.This elastic sealing element includes main lip 2 and secondary lip 3.Normal conditions
Under, bearing is along with the rising of temperature in operation process, and the air pressure of Bearing inner can become big, when air pressure is big
Time to a certain extent, gas can be discharged to Bearing outer from the region of main lip 2 and secondary lip 3, and this can affect
The sealing property of bearing.
Particularly under the scene of fog lubrication, mist of oil needs constantly to circulate at Bearing inner, i.e. mist of oil one
Aspect inside the input shaft bearing continually of bearing side, be also required to simultaneously the mist of oil of Bearing inner in time from
Bearing opposite side is discharged to Bearing outer.Under existence conditions, mist of oil is by from main lip 2 and secondary lip 3 region
Being continuously discharged to Bearing outer, the sealing property of bearing will be had adverse effect on by this.
Accordingly, it is desirable to provide the sealing structure of a kind of improvement is to solve the problems referred to above.
Utility model content
This utility model solve problem be to provide one can equalizer bearing inner and outer air pressure, can guarantee that again close
The sealing structure of envelope effect.
For solving the problems referred to above, this utility model adopts the following technical scheme that a kind of sealing for bearing
Structure, including skeleton and the elastic sealing part that is attached on skeleton, described skeleton includes radial segment,
This radial segment is provided with the first the most through through hole, and described sealing structure also includes being positioned at
The sealing lid that described radial segment is axially external, this sealing lid is included in the most spaced installation portion
And arm, the first space is formed between described installation portion and arm and communicates with described first through hole,
The end of described arm is held on described radial segment and described arm and is communicated with described first space
The second through hole with Bearing outer space.
Further, the end of described arm is further provided with extend into the stop part in described first space,
This stop part blocks described first through hole.
Further, described first through hole, the second through hole is the most circumferentially distributed multiple and multiple
One through hole misplaces in the circumferential with multiple second through holes and arranges.
Further, described elastic sealing part is included in radially extending main part, this main body section
Axially external in described radial segment, described main part include the mounting groove that coordinates with described installation portion and
Accommodation space, described arm extends into described accommodation space thus forms described first space.
Further, described accommodation space also includes second space, and described second space is empty with described first
Between by described arm separately.
Further, the outlet that described second space leads to bearing extraneous is positioned at the axial of described second through hole
Outside.
Further, the end of described arm is further provided with extend into the stop part in described first space,
This stop part blocks described first through hole.
Further, described mounting groove is positioned at the radial outside of described accommodation space, described first space bit
Radial outside in described second space.
Further, described mounting groove is positioned at the radially inner side of described accommodation space, described first space bit
Radially inner side in described second space.
Further, described elastic sealing part includes main lip and the pair being positioned at described main part radially inner side
Lip.
Compared with prior art, this utility model has the advantage that this utility model is in skeleton and sealing
Cover and the first through hole and the second through hole communicated is set, bearing internal gas or mist of oil both can have been guided to discharge
Bearing outer, ensure that the whole sealing property sealing well-formed simultaneously.
Accompanying drawing explanation
Fig. 1 is the prior art profile for the sealing structure of bearing；
Fig. 2 is the profile that this utility model the first embodiment seals structure；
Fig. 3 is the profile that this utility model the second embodiment seals structure；
Fig. 4 is the profile that this utility model the 3rd embodiment seals structure.
Detailed description of the invention
As in figure 2 it is shown, be the profile of this utility model the first embodiment sealing structure 10.Seal structure
The elastic sealing part 14 that 10 include skeleton 12, is attached on skeleton 12 and be assembled to described elastic packing
Sealing lid 16 in part 14.
Skeleton 12 includes axial segment 122 and radial segment 124, and axial segment 122 is for installing outside bearing
Enclosing (not shown) thus whole sealing structure 10 be fixed on bearing, radial segment 124 is provided with at axle
The first through hole 126 through on direction.Elastic sealing part 14 is included in radially extending main part
142 and be positioned at the main lip 144 of main part 142 radially inner side and secondary lip 146, secondary lip 146 compares main lip 144 more
Near Bearing outer.Main part 142 is provided with mounting groove 147 and storage sky in the axially external of radial segment 124
Between 148.In the present embodiment, mounting groove 147 is positioned at the radially outer of accommodation space 148.Accommodation space
148 communicate with the first through hole 126.
Seal lid 16 include the installation portion 162 matched with mounting groove 147 and extend into accommodation space 148
Arm 164.By the mating reaction between installation portion 162 and mounting groove 147, sealing lid 16 can be fixed to
Main part 142.The end of arm 164 is held in radial segment 124 thus accommodation space 148 is divided into
One space 149 and second space 150, the first space 149 is positioned at the radial outside of second space 150, from separately
For one angle, the first space 149 is radially positioned between installation portion 162 and arm 164.Arm 164
There is connection the first space 149 and the second through hole 166 of second space 150.Wherein, the first space 149 is same
Time communicate with the first through hole 126.So, when Bearing inner air pressure is too high, gas can pass sequentially through first
Through hole the 126, first space the 149, second through hole 166 and second space 150 are discharged to Bearing outer, it is to avoid
Gas is outwards discharged by main lip 144 and secondary lip 146.Due to first through hole the 126, second through hole 166
Size is smaller, and foreign matter is difficult to enter Bearing inner from Bearing outer.In order to discharge faster
Gas, first through hole the 126, second through hole 166 is the most circumferentially distributed to be had multiple and misplaces in the circumferential
Arrange, form labyrinth seal.Further, for fog lubrication bearing, mist of oil can lead to easily
Cross the first through hole 126 and the second through hole 166 discharge, it is to avoid discharge at the position of sealing lip, it is ensured that
Good sealing property.Especially, second space 150 is configured in such a manner so that second space 150 leads to axle
The outlet holding the external world is positioned at the axially external of the second through hole 166, so can prevent foreign matter from entering further
Enter the second through hole 166.
As it is shown on figure 3, be the profile of this utility model the second embodiment sealing structure 20.Real with first
Execute unlike mode, the end of arm 164 is further provided with extend into the first space 149 and block
The stop part 168 of one through hole 126.Under some application feature, need the air pressure keeping Bearing inner slightly higher
In external pressure, so by designing the elasticity of stop part 168, Bearing inner air pressure or oil pressure is made to reach one
When determining degree, push stop part 168 open and realize outwards discharging.
As shown in Figure 4, the profile of structure 30 is sealed for this utility model the 3rd embodiment.Real with second
Executing unlike mode, mounting groove 147 position relative with accommodation space 148 there occurs change, i.e. the 3rd
In embodiment, accommodation space 148 is positioned at the radial outside of mounting groove 147.Meanwhile, the first space 149 He
The relative position of second space 150 also there occurs that change, the first space 149 are positioned at the radial direction of second space 150
Inner side.
This utility model covers at skeleton and sealing and arranges the first through hole and the second through hole communicated, the most permissible
Guide bearing internal gas or mist of oil to discharge Bearing outer, ensure that whole sealing well-formed's is close simultaneously
Sealing property.
Although this utility model is only described with regard to some exemplary embodiment, these descriptions should only be made
It is not construed as limiting for example.In the range of appended claims is recorded, new without departing from this practicality
In the case of type spirit and scope, various changes are equally possible.
Claims (10)
1. for the sealing structure of bearing, including skeleton and the elastic sealing part that is attached on skeleton, its
Being characterised by, described skeleton includes radial segment, and this radial segment is provided with the most through
The first through hole, described sealing structure also includes being positioned at the sealing lid that described radial segment is axially external,
This sealing lid is included in the most spaced installation portion and arm, and the first space is formed at described peace
Communicating between dress portion and arm and with described first through hole, the end of described arm is held in described footpath
In section and described arm, it is communicated with described first space lead to the second of Bearing outer space
Hole.
Sealing structure the most according to claim 1, it is characterised in that on the end of described arm further
Being provided with the stop part extending into described first space, this stop part blocks described first through hole.
Sealing structure the most according to claim 1 and 2, it is characterised in that described first through hole, second
Through hole is the most circumferentially distributed has multiple and multiple first through hole the most wrong with multiple second through holes
Position arranges.
Sealing structure the most according to claim 1, it is characterised in that described elastic sealing part is included in
Radially extending main part, this main body section is axially external in described radial segment, described main body
Portion includes mounting groove and the accommodation space coordinated with described installation portion, and described arm extends into described storage
Space thus form described first space.
Sealing structure the most according to claim 4, it is characterised in that described accommodation space also includes second
Space, described second space is with described first space by described arm separately.
Sealing structure the most according to claim 5, it is characterised in that described second space leads to outside bearing
The outlet on boundary is positioned at the axially external of described second through hole.
Sealing structure the most according to claim 4, it is characterised in that on the end of described arm further
Being provided with the stop part extending into described first space, this stop part blocks described first through hole.
Sealing structure the most according to claim 5, it is characterised in that described mounting groove is positioned at described storage
The radial outside in space, described first is spatially located at the radial outside of described second space.
Sealing structure the most according to claim 5, it is characterised in that described mounting groove is positioned at described storage
The radially inner side in space, described first is spatially located at the radially inner side of described second space.
10. according to the sealing structure according to any one of claim 4-9, it is characterised in that described elastic packing
Part includes main lip and the pair lip being positioned at described main part radially inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199116.7U CN205605652U (en) | 2016-03-15 | 2016-03-15 | sealing structure for bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199116.7U CN205605652U (en) | 2016-03-15 | 2016-03-15 | sealing structure for bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205605652U true CN205605652U (en) | 2016-09-28 |
Family
ID=56962107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620199116.7U Expired - Fee Related CN205605652U (en) | 2016-03-15 | 2016-03-15 | sealing structure for bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205605652U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233588A (en) * | 2016-12-22 | 2018-06-29 | 株式会社斯巴鲁 | Bearing construction |
| CN110778723A (en) * | 2018-07-26 | 2020-02-11 | 斯凯孚公司 | Sealing element |
-
2016
- 2016-03-15 CN CN201620199116.7U patent/CN205605652U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233588A (en) * | 2016-12-22 | 2018-06-29 | 株式会社斯巴鲁 | Bearing construction |
| CN108233588B (en) * | 2016-12-22 | 2019-09-24 | 株式会社斯巴鲁 | Bearing construction |
| CN110778723A (en) * | 2018-07-26 | 2020-02-11 | 斯凯孚公司 | Sealing element |
| CN110778723B (en) * | 2018-07-26 | 2023-10-03 | 斯凯孚公司 | Sealing element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |