CN207049328U - A kind of low friction crankshaft oil seal - Google Patents
A kind of low friction crankshaft oil seal Download PDFInfo
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- CN207049328U CN207049328U CN201720835484.0U CN201720835484U CN207049328U CN 207049328 U CN207049328 U CN 207049328U CN 201720835484 U CN201720835484 U CN 201720835484U CN 207049328 U CN207049328 U CN 207049328U
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- lip
- lips
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Abstract
The utility model provides a kind of low friction crankshaft oil seal, belongs to oil sealing field.It solves the problems, such as existing oil sealing sealing stability difference.This low friction crankshaft oil seal includes axle sleeve, PTFE lips, metallic framework and rubbery sealed body, axle sleeve includes vertical end and horizontal ends, vertical end bottom end face is connected and is ground with horizontal ends the inner end face, lips includes main lip, compacting forms helicla flute on main lip inwall, helicla flute is provided with static oil resistance point, lips also includes tubaeform secondary lip, also include main support set and opening small end and the coaxially connected secondary support set in main support set bottom, main support set and secondary support set are located in main lip and secondary lip, rubbery sealed body external diameter position is coated on metallic framework outer, rubbery sealed body connecting portion is coated on metallic framework interior edge, and vulcanize with lips and fix.This oil sealing, using lips is made, can reduce loss using PTFE, coordinate stable lips using main support set and secondary support set, effectively improve sealing stability.
Description
Technical field
The utility model belongs to oil seal technique field, is related to a kind of low friction crankshaft oil seal.
Background technology
With the present energy-saving requirement to stem seal design, increasing crankshaft oil seal selects low friction on material
The material of coefficient.Therefore can be made in the operation process of bent axle with main lip and secondary lip from low friction PTFE material
Loss reduces, but PTFE material less stable, can not ensure sealing very well, easily produces leakage, causes the sealing of product
Performance failure, so as to shorten the life-span of product, it is therefore necessary to be improved.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided one kind reduces loss
On the premise of, moreover it is possible to improve the low friction crankshaft oil seal of sealing stability.
The purpose of this utility model can be realized by following technical proposal：A kind of low friction crankshaft oil seal, its feature exist
In：Including axle sleeve, PTFE lips, metallic framework and rubbery sealed body, described axle sleeve includes shell-like vertical end and annular horizontal
End, vertical end bottom end face are connected and are ground with horizontal ends the inner end face, and lips includes the main lip of shell-like, on main lip inwall
Formed with helicla flute, helicla flute is provided with static oil resistance point for compacting, and described static oil resistance point is located at main lip top fitting axle
In the helicla flute for covering vertical end, described lips also includes tubaeform secondary lip, and secondary lip opening small end connects with main lip bottom
Connect, be open big end end face fitting axle sleeve horizontal ends top surface, in addition to the main support set of circle shell-like and opening small end and main support set bottom
Coaxially connected secondary support set is held, and described main support set and secondary support set are respectively in main lip and secondary lip, and position
In main lip and secondary lip junction, described rubbery sealed body is connected including rubbery sealed body external diameter position with rubbery sealed body
Position, and rubbery sealed body external diameter position is coated on metallic framework outer, rubbery sealed body connecting portion is coated on metallic framework
Interior edge, and vulcanize with lips and fix.
This oil sealing is used using PTFE and makes lips, therefore can reduce loss in the operation process of bent axle, main lip
The material of low friction is selected with secondary lip position, the bent axle function that lost work reduces in operation process can be realized, erected simultaneously
Straight end bottom end face is connected and is ground with horizontal ends the inner end face so that the roughness of axle sleeve outer radius is guaranteed, whole
Dynamic process makes friction reach minimum.And coordinated using main support set and secondary support set, can stable lips, with avoid main lip with
Secondary lip deformation or dislocation, therefore sealing stability can be effectively improved, ensure that sealing medium does not leak.
In a kind of above-mentioned low friction crankshaft oil seal, described rubbery sealed body connecting portion and secondary lip opening small end
Outer wall vulcanization is fixed.
In a kind of above-mentioned low friction crankshaft oil seal, the described corrugated knot in rubbery sealed body external diameter position section
Structure.
It is interference fitted with housing, guarantee does not leak.
In a kind of above-mentioned low friction crankshaft oil seal, the described secondary big end of lip opening is bonded with axle sleeve horizontal ends top surface
Locate pointed structures in a ring.
Therefore loss can be reduced.
Compared with prior art, the utility model has the following advantages that：
This oil sealing is used using PTFE and makes lips, therefore can reduce loss in the operation process of bent axle, main lip
The material of low friction is selected with secondary lip position, the bent axle function that lost work reduces in operation process can be realized, erected simultaneously
Straight end bottom end face is connected and is ground with horizontal ends the inner end face so that the roughness of axle sleeve outer radius is guaranteed, whole
Dynamic process makes friction reach minimum.And coordinated using main support set and secondary support set, can stable lips, with avoid main lip with
Secondary lip deformation or dislocation, therefore sealing stability can be effectively improved, ensure that sealing medium does not leak.
Brief description of the drawings
Fig. 1 is this oil sealing partial schematic diagram.
In figure,
1st, axle sleeve；11st, horizontal ends；12nd, vertical end；
2nd, lips；21st, main lip；22nd, helicla flute；23rd, main support set；24th, secondary lip；25th, secondary support set；26th, it is static
Oil resistance point；
3rd, metallic framework；
4th, rubbery sealed body；41st, rubbery sealed body external diameter position；42nd, rubbery sealed body connecting portion.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, a kind of low friction crankshaft oil seal of the utility model, including axle sleeve 1, PTFE lips 2, metallic framework 3
With rubbery sealed body 4, axle sleeve 1 includes shell-like vertical end 12 and annular horizontal end 11, the bottom end face of vertical end 12 and horizontal ends 11
Inner end face connects and is ground, and lips 2 includes the main lip 21 of shell-like, is suppressed on the main inwall of lip 21 formed with helicla flute 22,
Helicla flute 22 is provided with static oil resistance point 26, and static oil resistance point 26 is located at the spiral shell of the main top of the lip 21 fitting vertical end 12 of axle sleeve 1
In spin slot 22, lips 2 also includes tubaeform secondary lip 24, and the secondary opening of lip 24 small end is connected with the main bottom of lip 21, and opening is big
Hold the top surface of end face 1 horizontal ends of fitting axle sleeve 11, in addition to the main support set 23 of circle shell-like and opening small end and the main bottom of support set 23
Coaxially connected secondary support set 25, and main support set 23 and secondary support set 25 are located in main lip 21 and secondary lip 24 respectively, and
Positioned at main lip 21 and the junction of secondary lip 24, rubbery sealed body 4 includes rubbery sealed body external diameter position 41 and rubbery sealed body
Connecting portion 42, and rubbery sealed body external diameter position 41 is coated on the outer of metallic framework 3, rubbery sealed body connecting portion 42 coats
In the interior edge of metallic framework 3, and vulcanize with lips 2 and fix.
Further, rubbery sealed body connecting portion 42 is fixed with the opening small end outer wall vulcanization of secondary lip 24.Rubber seal
The corrugated structure in the external section of footpath position 41.Secondary lip 24 is open big end and the top surface joint place of 1 horizontal ends of axle sleeve 11 in a ring
Pointed structures.
This oil sealing is used using PTFE and makes lips 2, therefore can reduce loss in the operation process of bent axle, main lip
21 select the material of low friction with the secondary position of lip 24, can realize the bent axle function that lost work reduces in operation process, together
When the bottom end face of vertical end 12 be connected and be ground with 12 inner end face of horizontal ends so that the roughness of the outer radius of axle sleeve 1 is protected
Card, makes friction reach minimum in whole dynamic process.And coordinated using main support set 23 and secondary support set 25, lips 2 can be stablized,
To avoid main lip 21 and secondary lip 24 from deforming or misplace, therefore sealing stability can be effectively improved, ensure that sealing medium is not let out
Leakage.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein axle sleeve 1, horizontal ends 11, vertical end 12, lips 2, main lip 21, helicla flute 22,
Main support set 23, secondary lip 24, secondary support set 25, static oil resistance point 26, metallic framework 3, rubbery sealed body 4, rubbery sealed body
The terms such as external diameter position 41, rubbery sealed body connecting portion 42, but it is not precluded from the possibility using other terms.Use these
Term is used for the purpose of more easily describing and explaining essence of the present utility model；It is construed as any additional limit
System is all disagreed with the utility model spirit.
Claims (4)
- A kind of 1. low friction crankshaft oil seal, it is characterised in that：Including axle sleeve (1), PTFE lips (2), metallic framework (3) and rubber Seal (4), described axle sleeve (1) include shell-like vertical end (12) and annular horizontal end (11), vertical end (12) bottom end face It is connected and is ground with horizontal ends (11) inner end face, lips (2) includes the main lip of shell-like (21), is pressed on main lip (21) inwall System is formed with helicla flute (22), and helicla flute (22) is provided with static oil resistance point (26), and described static oil resistance point (26) is positioned at master In the helicla flute (22) of lip (21) top fitting axle sleeve (1) vertical end (12), described lips (2) also includes tubaeform secondary lip Mouth (24), secondary lip (24) opening small end are connected with main lip (21) bottom, and the big end end face that is open is bonded axle sleeve (1) horizontal ends (11) top surface, in addition to the pair support that the circle main support set of shell-like (23) and opening small end are coaxially connected with main support set (23) bottom Cover (25), and described main support set (23) and secondary support set (25) are interior positioned at main lip (21) and secondary lip (24) respectively, and Positioned at main lip (21) and secondary lip (24) junction, described rubbery sealed body (4) includes rubbery sealed body external diameter position (41) with rubbery sealed body connecting portion (42), and rubbery sealed body external diameter position (41) is coated on metallic framework (3) outer, rubber Glue seal connecting portion (42) is coated on metallic framework (3) interior edge, and vulcanizes with lips (2) and fix.
- A kind of 2. low friction crankshaft oil seal according to claim 1, it is characterised in that：Described rubbery sealed body connecting portion Position (42) is fixed with secondary lip (24) opening small end outer wall vulcanization.
- A kind of 3. low friction crankshaft oil seal according to claim 2, it is characterised in that：Described rubbery sealed body outer diameter part The corrugated structure in position (41) section.
- A kind of 4. low friction crankshaft oil seal according to claim 3, it is characterised in that：Described secondary lip (24) opening is big End and axle sleeve (1) horizontal ends (11) top surface joint place pointed structures in a ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720835484.0U CN207049328U (en) | 2017-07-10 | 2017-07-10 | A kind of low friction crankshaft oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720835484.0U CN207049328U (en) | 2017-07-10 | 2017-07-10 | A kind of low friction crankshaft oil seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207049328U true CN207049328U (en) | 2018-02-27 |
Family
ID=61496268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720835484.0U Active CN207049328U (en) | 2017-07-10 | 2017-07-10 | A kind of low friction crankshaft oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207049328U (en) |
-
2017
- 2017-07-10 CN CN201720835484.0U patent/CN207049328U/en active Active
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