CN208997196U - A kind of bearing seal coil structures - Google Patents
A kind of bearing seal coil structures Download PDFInfo
- Publication number
- CN208997196U CN208997196U CN201821621012.6U CN201821621012U CN208997196U CN 208997196 U CN208997196 U CN 208997196U CN 201821621012 U CN201821621012 U CN 201821621012U CN 208997196 U CN208997196 U CN 208997196U
- Authority
- CN
- China
- Prior art keywords
- lip
- ring
- epipharynx
- sealing ring
- 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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- Sealing Of Bearings (AREA)
Abstract
The utility model discloses a kind of bearing seal coil structures, bearing includes inner ring, outer ring and sealing ring, the outer diameter end of sealing ring is provided with the outer lip with outer ring sealing cooperation, inner-diameter end is provided with the epipharynx with inner ring interference fit, plane where the lateral wall of epipharynx is the involutory surface of sealing ring processing mold, protrusion is provided with reinforcement lip on the face that epipharynx is contacted with inner ring, reinforces lip and is not located on involutory surface.Above-mentioned ring structure mainly adds reinforcement lip by the inner-diameter end in sealing ring, it will reinforce lip as the dominant touch portion of sealing ring and inner ring, so that sealing effect will not be influenced even if remaining machined burrs on epipharynx, it fundamentally solves Leakage, ensure that the functionality of sealing ring.
Description
Technical field
The utility model relates to bearing seal technical field more particularly to a kind of bearing seal coil structures.
Background technique
Bearing is a kind of important spare part in contemporary mechanical equipment, is mainly used for supporting mechanical rotary body, reduces its movement
Coefficient of friction in the process, and guarantee its rotating accuracy.
By taking common ball bearing as an example, as shown in figure 4, including 1 ' of inner ring, 2 ' of outer ring, 4 ' of ball and sealing ring 3 ', 4 ' of ball
Mounted in the centre of 2 ' of 1 ' of inner ring and outer ring, it is functional to undertake main bearing, 3 ' of sealing ring in interference fit on 1 ' of inner ring and by
2 ' of outer ring limit is fixed, so that 4 ' of ball will be encapsulated in formation oil sealing space in 2 ' of 1 ' of inner ring and outer ring, inside filling lubricating oil.
However, being found in actual use, even if guaranteeing the interference fit degree of 3 ' of sealing ring and 1 ' of inner ring, however it remains the feelings of oil leak
Condition.
After find, reason is the inner lip of sealing ring, the i.e. contact portion of sealing ring and inner ring.3 ' manufacturing process of sealing ring
It is middle to be press-formed, pressing mold molding is carried out usually using mutually matched 5 ' of upper/lower die, as shown in figure 5, will sealing
Circle raw material is put at high temperature in the forming cavity that 5 ' of mold is surrounded, and finally obtains 3 ' of finished product sealing ring.However in 5 ' of upper/lower die
Pressure is in the process, and mold apposition position is easy to form 6 ' of burr in the inner lip of 3 ' of sealing ring, as shown in fig. 6, not due to 6 ' of burr
It can avoid and in irregular shape, result in 3 ' of sealing ring and the tight fit degree of 1 ' of inner ring is greatly reduced, so generate oil leak
Phenomenon eventually leads to bearing loss of functionality.
Utility model content
The purpose of this utility model is to provide a kind of bearing seal coil structures, in view of the above-mentioned problems, advanced optimizing close
Seal structure improves the degree of cooperation of sealing ring and bearing inner race, prevents oil leak.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of bearing seal coil structures, bearing include inner ring, outer ring and sealing ring, the outer diameter end of sealing ring be provided with outside
The outer lip of circle sealing cooperation, inner-diameter end are provided with the epipharynx with inner ring interference fit, and plane where the lateral wall of epipharynx is sealing
The involutory surface of processing mold is enclosed, protrusion is provided with reinforcement lip on the face that epipharynx is contacted with inner ring, reinforces lip and is not located on involutory surface.
Wherein, the cross sectional shape for reinforcing lip is triangle, trapezoidal or arc.
Wherein, oil seal lip is extended with to inner ring deflection on the inner sidewall of epipharynx.Increase heavy oil envelope effect.
Wherein, reinforce lip to be connected smoothly with oil seal lip.Facilitate sealing ring molding, demoulding.
Wherein, the end of oil seal lip and inner ring clearance fit.Moment of friction is small when bearing rotary.
To sum up, the beneficial effects of the utility model are that compared with prior art, the bearing seal coil structures mainly pass through
Reinforcement lip is added in the inner-diameter end of sealing ring, lip will be reinforced as the dominant touch portion of sealing ring and inner ring, thus even if epipharynx
On remain machined burrs, sealing effect will not be influenced, fundamentally solve Leakage, ensure that the function of sealing ring
Property.
Detailed description of the invention
Fig. 1 is the use schematic diagram of bearing seal coil structures provided by the embodiment of the utility model；
Fig. 2 is enlarged drawing at A in Fig. 1；
Fig. 3 is the sealing ring machining sketch chart of bearing seal coil structures provided by the embodiment of the utility model；
Fig. 4 is the use schematic diagram of existing bearing seal coil structures；
Fig. 5 is the sealing ring machining sketch chart of existing bearing seal coil structures；
Fig. 6 is enlarged drawing at B in Fig. 5.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
It please refers to shown in Fig. 1 and 2, the present embodiment provides a kind of bearing seal coil structures, by taking common ball bearing as an example, packet
Include inner ring 1, outer ring 2 and sealing ring 3.Sealing ring 3 includes internal skeleton and the elastic body being coated on outside skeleton, elastic body
Generally use rubber material, the outer diameter end of sealing ring 3 be provided with outer ring 2 sealing cooperation outer lip 4, inner-diameter end be provided with it is interior
The epipharynx 5 of 1 interference fit of circle, 5 interference of epipharynx are set on inner ring 1, and limiting section 6 and groove 7 are provided on outer ring 2, outer lip 4
Inner sidewall is posted by limiting section 6 and forms limit, is formed and is fixed in the end insertion groove 7 of outer lip 4.
As shown in figure 3, be the involutory surface of 3 processing mold of sealing ring by plane where the lateral wall of epipharynx 5, epipharynx 5 with it is interior
Protrusion, which is provided with, on the face of 1 contact of circle reinforces lip 8, and the cross sectional shape for reinforcing lip 8 is triangle, trapezoidal or arc, the present embodiment
In with triangle example.It should be noted that the lateral wall of epipharynx 5 be set as involutory surface be for consideration easy to process so that
Burr side 10 is formed at the external corners of epipharynx 5, this is also the immediate cause for causing 3 oil leak of conventional hermetic circle.And herein plus
Strong lip 8 is not on involutory surface, so that the lip 8 of reinforcing of forming is qualified technique edges, and reinforcement lip 8 and oil seal lip 9 are smoothed
Connection is crossed, the molding of sealing ring 3, demoulding are facilitated.
It is exactly the sealed pressure for reinforcing lip 8 in addition, reducing epipharynx 5 to further increase oil sealing effect,
Oil seal lip 9 is extended with to 1 deflection of inner ring on the inner sidewall of epipharynx 5, it should be noted that oil seal lip 9 and 1 clearance fit of inner ring,
It is preferably exactly in contact with inner ring 1, since sealing oil meter face is there are some tension, this gap remains to reach oil sealing effect, more important
, oil seal lip 9 do not contact moment of friction when can reduce bearing rotary with inner ring 1.This improves oil sealing effects, also control
The drop effect torque of bearing is made.
To sum up, above-mentioned bearing seal coil structures mainly add reinforcement lip by the inner-diameter end in sealing ring, will reinforce lip
As the dominant touch portion of sealing ring and inner ring, so that sealing effect will not be influenced even if remaining machined burrs on epipharynx,
It fundamentally solves Leakage, ensure that the functionality of sealing ring.
Above embodiments only elaborate the basic principles and features of the present invention, and the utility model is not by above-mentioned example
Limitation, on the premise of not departing from the spirit and scope of the utility model, the present invention has various changes and changes, these changes
Change and change is fallen within the scope of the claimed invention.The utility model requires protection scope is wanted by appended right
Ask book and its equivalent thereof.
Claims (5)
1. a kind of bearing seal coil structures, the bearing includes inner ring, outer ring and sealing ring, the outer diameter end setting of the sealing ring
There is the outer lip with outer ring sealing cooperation, inner-diameter end is provided with the epipharynx with inner ring interference fit, which is characterized in that institute
Plane where stating the lateral wall of epipharynx is the involutory surface of sealing ring processing mold, and protrusion is set on the face that the epipharynx is contacted with inner ring
It is equipped with reinforcement lip, the reinforcement lip is not located on the involutory surface.
2. bearing seal coil structures according to claim 1, it is characterised in that: the cross sectional shape for reinforcing lip is triangle
Shape, trapezoidal or arc.
3. bearing seal coil structures according to claim 1, it is characterised in that: to described interior on the inner sidewall of the epipharynx
Circle deflection is extended with oil seal lip.
4. bearing seal coil structures according to claim 3, it is characterised in that: the reinforcement lip and the oil seal lip are smooth
Transition connection.
5. bearing seal coil structures according to claim 3, it is characterised in that: the end of the oil seal lip and the inner ring
Clearance fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821621012.6U CN208997196U (en) | 2018-09-30 | 2018-09-30 | A kind of bearing seal coil structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821621012.6U CN208997196U (en) | 2018-09-30 | 2018-09-30 | A kind of bearing seal coil structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208997196U true CN208997196U (en) | 2019-06-18 |
Family
ID=66803181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821621012.6U Expired - Fee Related CN208997196U (en) | 2018-09-30 | 2018-09-30 | A kind of bearing seal coil structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208997196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153912A (en) * | 2021-03-19 | 2021-07-23 | 上海人本精密机械有限公司 | Precision assembled self-lubricating ball bearing |
-
2018
- 2018-09-30 CN CN201821621012.6U patent/CN208997196U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153912A (en) * | 2021-03-19 | 2021-07-23 | 上海人本精密机械有限公司 | Precision assembled self-lubricating ball bearing |
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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 |
Granted publication date: 20190618 Termination date: 20200930 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |