CN206786007U - A kind of kidney-shaped drive shaft seal circle - Google Patents
A kind of kidney-shaped drive shaft seal circle Download PDFInfo
- Publication number
- CN206786007U CN206786007U CN201720514982.5U CN201720514982U CN206786007U CN 206786007 U CN206786007 U CN 206786007U CN 201720514982 U CN201720514982 U CN 201720514982U CN 206786007 U CN206786007 U CN 206786007U
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- CN
- China
- Prior art keywords
- epipharynx
- kidney
- outer lip
- shaped
- drive shaft
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- 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.)
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Abstract
The utility model provides a kind of kidney-shaped drive shaft seal circle, including kidney-shaped circle body, is disposed with labrum-epipharynx, middle epipharynx and lower epipharynx on the inside of kidney-shaped circle body from top to bottom, outer lip, middle outer lip and lower outer lip are disposed with from top to bottom on the outside of kidney-shaped circle body.In the utility model, labrum-epipharynx and upper outer lip combination sealing, middle epipharynx and middle outer lip combination sealing, lower epipharynx and lower outer lip combination sealing, the effect sealed in batches is realized, is effectively increased sealing and stability；The radian of first arc angling is less than the radian of the second arc angling, makes the magnitude of interference inside and outside kidney-shaped circle body different, coefficient of friction reduction, and then improves service life.
Description
Technical field
It the utility model is related to sealing ring technical field, more particularly to a kind of kidney-shaped drive shaft seal circle.
Background technology
The power transmission shaft that can be moved back and forth is provided with the drivers such as cylinder, hydraulic cylinder, the power transmission shaft generally covers
Provided with sealing ring.Wherein, sealing ring be used for prevent internal grease or fluid from leaking out, prevented also from the external world dabble or dust
Intrusion.
Moved back and forth due to prolonged, the inner and outer wall of sealing ring is because friction causes to deform or lost for a long time
Elasticity, cause sealing effectiveness to fail, influence driver use.
Utility model content
The technical problems to be solved in the utility model is according to above-mentioned the deficiencies in the prior art, there is provided a kind of service life
Kidney-shaped drive shaft seal circle long, sealing is excellent.
The technical solution of the utility model is as follows：
A kind of kidney-shaped drive shaft seal circle, including kidney-shaped circle body, the kidney-shaped circle body inner side are disposed with from top to bottom
Labrum-epipharynx, middle epipharynx and lower epipharynx, be disposed with from top to bottom on the outside of the kidney-shaped circle body outer lip, middle outer lip and under
Outer lip.
Further, the corner between the corner between the labrum-epipharynx and middle epipharynx, middle epipharynx and lower epipharynx is equal
The first arc angling is provided with, the corner between corner, middle outer lip and lower outer lip between the upper outer lip and middle outer lip
It is provided with the second arc angling；The radian of first arc angling is less than the radian of the second arc angling.
Further, the radian of first arc angling is 0.2rad, and the radian of second arc angling is
0.5rad。
Further, the cross sectional shape of the labrum-epipharynx, middle epipharynx and lower epipharynx is serrated structure.
Further, the cross sectional shape of the upper outer lip and lower outer lip is serrated structure, the section of the middle outer lip
Shape is in half kidney-shaped.
Compared with prior art, the utility model has the advantages that：（1）Labrum-epipharynx and upper outer lip combination sealing,
Middle epipharynx and middle outer lip combination sealing, lower epipharynx and lower outer lip combination sealing, realize the effect sealed in batches, are effectively increased
Sealing and stability；（2）The radian of first arc angling is less than the radian of the second arc angling, makes interference inside and outside kidney-shaped circle body
Amount is different, and coefficient of friction is reduced, and then improves service life.
Brief description of the drawings
Fig. 1 is the stereogram of the utility model embodiment.
Fig. 2 is the sectional view of the utility model embodiment.
Reference
11st, labrum-epipharynx, 12, middle epipharynx, 13, lower epipharynx, the 14, first arc angling；
21st, upper outer lip, 22, middle outer lip, 23, lower outer lip, the 24, second arc angling.
Embodiment
It is new to this practicality below in conjunction with accompanying drawing to make the purpose of this utility model, technical scheme and advantage clearer
Type is described in further detail.
As depicted in figs. 1 and 2, embodiment provided by the utility model, a kind of kidney-shaped drive shaft seal circle, including kidney-shaped circle
Body, is disposed with labrum-epipharynx 11, middle epipharynx 12 and lower epipharynx 13 on the inside of kidney-shaped circle body from top to bottom, on the outside of kidney-shaped circle body from
Outer lip 21, middle outer lip 22 and lower outer lip 23 are up to disposed with down.
The corner between corner, middle epipharynx 12 and lower epipharynx 13 between labrum-epipharynx 11 and middle epipharynx 12 is provided with
First arc angling 14, the corner between corner, middle outer lip 22 and lower outer lip 23 between upper outer lip 21 and middle outer lip 22
It is provided with the second arc angling 24；The radian of first arc angling 14 is less than the radian of the second arc angling 24.
In the present embodiment, preferably the radian of the first arc angling 14 is 0.2rad, and the radian of the second arc angling 24 is
0.5rad。
The cross sectional shape of labrum-epipharynx 11, middle epipharynx 12 and lower epipharynx 13 is serrated structure.Upper outer lip 21 and lower outer
The cross sectional shape of lip 23 is serrated structure, and the cross sectional shape of middle outer lip 22 is in half kidney-shaped.Wherein, turn of laciniation
It is arc angling at angle, so as to increase kidney-shaped circle body and rotating shaft, the contact area of driver inwall, improves sealing.
In the present embodiment, labrum-epipharynx 11 and the upper combination sealing of outer lip 21, middle epipharynx 12 and the middle combination sealing of outer lip 22, it is lower in
Lip 13 and the lower combination sealing of outer lip 23, realize the effect sealed in batches, are effectively increased sealing and stability；First arc
The radian of chamfering 14 is less than the radian of the second arc angling 24, makes the magnitude of interference inside and outside kidney-shaped circle body different, coefficient of friction reduction, enters
And improve service life.
Above disclosed is only the utility model preferred embodiment, can not limit the utility model with this certainly
Interest field, therefore equivalent variations made according to the utility model claims still belong to the scope that the utility model is covered.
Claims (4)
- A kind of 1. kidney-shaped drive shaft seal circle, it is characterised in that：Including kidney-shaped circle body, on the inside of the kidney-shaped circle body from top to bottom according to It is secondary to be provided with labrum-epipharynx, middle epipharynx and lower epipharynx, outer lip, China and foreign countries are disposed with from top to bottom on the outside of the kidney-shaped circle body Lip and lower outer lip；The corner between corner, middle epipharynx and lower epipharynx between the labrum-epipharynx and middle epipharynx is provided with the first arc Chamfering, the corner between corner, middle outer lip and lower outer lip between the upper outer lip and middle outer lip are provided with the second arc Shape chamfering；The radian of first arc angling is less than the radian of the second arc angling.
- A kind of 2. kidney-shaped drive shaft seal circle according to claim 1, it is characterised in that：The arc of first arc angling Spend for 0.2rad, the radian of second arc angling is 0.5rad.
- A kind of 3. kidney-shaped drive shaft seal circle according to claim 1, it is characterised in that：The labrum-epipharynx, middle epipharynx with And the cross sectional shape of lower epipharynx is serrated structure.
- A kind of 4. kidney-shaped drive shaft seal circle according to claim 1, it is characterised in that：The upper outer lip and lower outer lip Cross sectional shape is serrated structure, and the cross sectional shape of the middle outer lip is in half kidney-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514982.5U CN206786007U (en) | 2017-05-10 | 2017-05-10 | A kind of kidney-shaped drive shaft seal circle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720514982.5U CN206786007U (en) | 2017-05-10 | 2017-05-10 | A kind of kidney-shaped drive shaft seal circle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206786007U true CN206786007U (en) | 2017-12-22 |
Family
ID=60710835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720514982.5U Active CN206786007U (en) | 2017-05-10 | 2017-05-10 | A kind of kidney-shaped drive shaft seal circle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206786007U (en) |
-
2017
- 2017-05-10 CN CN201720514982.5U patent/CN206786007U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |