CN105443764B - A kind of reciprocating motion oil seal structure - Google Patents
A kind of reciprocating motion oil seal structure Download PDFInfo
- Publication number
- CN105443764B CN105443764B CN201511027433.7A CN201511027433A CN105443764B CN 105443764 B CN105443764 B CN 105443764B CN 201511027433 A CN201511027433 A CN 201511027433A CN 105443764 B CN105443764 B CN 105443764B
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- CN
- China
- Prior art keywords
- support frame
- outer diameter
- static seal
- dynamic sealing
- seal body
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Classifications
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- 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
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
Abstract
The present invention relates to a kind of reciprocating motion oil seal structures, including support frame, dynamic sealing body, static seal body and hold spring tightly, the support frame is rounded, connection dynamic sealing body on the inside of the support frame, the outside upper and lower ends of the dynamic sealing body are mounted on holding spring tightly, the lower face and outer diameter position of the support frame are connect with static seal body, which is characterized in that the outer diameter contact position of the support frame and static seal body is half rubber-wrapping structure.The beneficial effects of the invention are as follows：The outside diameter structure of innovative design oil seal for shock damper has prevented shock absorber fluid and is enclosed in generate in capping processes to rack that outer diameter is encapsulated, and collodion silk enters inside oil sealing in follow-up gas replenishment process causes damper oil leakage phenomenon.
Description
Technical field
The present invention relates to a kind of sealing element more particularly to a kind of reciprocating motion oil seals, belong to sealing structure technical field.
Background technology
The hydraulic structure of reciprocating motion is modern vehicle, common component in engineering machinery, and reciprocating motion generally comprises quiet
Sealing position and dynamic sealing position, two position sealing performances are most important on the service life influence of hydraulic packing component, such as
Shown in Fig. 1, dynamic sealing position mainly includes the sealing lip and dustproof lip of oil sealing, and the plunger rod contacts with reciprocating motion prevent from subtracting
Shake device internal oil is revealed and prevents external dust from entering inside oil seal for shock damper.Static seal position refers mainly to the rubber of oil sealing outer diameter
Glue position, is in contact with guider, the outer barrel of damper, plays the role of static seal by the rubber extruded to oil sealing outer diameter.Closely
Nian Lai, with the fast development of industrial automation, in damper production field, automatic assembly line is in gradual popularization and application.Oil
Seal the critical component that seal as damper, present automated assembly line can be adapted to, be influence damper efficiency of assembling with
An important factor for service life.
The oil enveloping structure used now because support frame outer diameter is full rubber-wrapping structure, in damper capping processes, subtracts
It shakes device outer barrel and squeezes the encapsulated position of oil sealing outer diameter, lead to the encapsulated breakage of oil sealing outer diameter, generate collodion silk, inflated in subsequent damper
In the process, collodion silk is easily accessible inside oil seal lip and damper, leads to damper oil leak.
So by designing the reciprocating oil seal outside diameter structure for adapting to present assembly technology and requiring, prevent to produce in assembling process
Raw rubber silk becomes an important technology of stem seal design.
Invention content
The present invention is directed to the deficiency of existing sealing technique, provides a kind of reciprocating motion oil seal structure.
The technical solution that the present invention solves above-mentioned technical problem is as follows：
A kind of reciprocating motion oil seal structure including support frame, dynamic sealing body, static seal body and holds spring, the branch tightly
Support bone frame is rounded, and connection dynamic sealing body, the outside upper and lower ends of the dynamic sealing body are mounted on the inside of the support frame
Hold spring tightly, the lower face and outer diameter position of the support frame are connect with static seal body, which is characterized in that the support frame
Outer diameter contact position with static seal body is half rubber-wrapping structure.
The beneficial effects of the invention are as follows：The outside diameter structure of innovative design oil seal for shock damper has prevented shock absorber fluid and has been enclosed in
It is generated during mouthful and racks that outer diameter is encapsulated, and collodion silk enters inside oil sealing in follow-up gas replenishment process causes damper oil leakage phenomenon.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the not encapsulated position of outer diameter of the support frame and static seal body is equipped with fluting.
Advantageous effect using above-mentioned further scheme is, in assembling process, the slight collodion silk of generation can slot
Position is sealed up for safekeeping, does not appear in damper upper end.
Further, the not encapsulated position of outer diameter of the support frame and static seal body is equipped with chamfering.
Advantageous effect using above-mentioned further scheme is that skeleton processing technology is simple, can be reduced in outer barrel turn-up process,
Flange right angle position stress concentration, causes outer barrel to rupture.
Further, the static seal body is made of nitrile rubber, hydrogenated nitrile-butadiene rubber or fluorubber.
Description of the drawings
Fig. 1 is oil sealing and absorber assembling structure schematic diagram；
Fig. 2 is the sectional view of 1 oil enveloping structure of embodiment；
Fig. 3 is the sectional view of 2 oil enveloping structure of embodiment；
Fig. 4 is the sectional view of 3 oil enveloping structure of embodiment；
Fig. 5 is the sectional view of 4 oil enveloping structure of embodiment.
In Fig. 1~5,1, oil sealing；2nd, outer barrel；3rd, guider；4th, piston rod；5th, support frame；6th, dynamic sealing body；7th, it holds tightly
Spring；8th, static seal body；9th, it slots；10th, chamfering
Specific embodiment
The principle of the present invention and feature are described below in conjunction with example, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment 1：
As shown in Fig. 2, a kind of reciprocating motion oil seal structure, including support frame 5, dynamic sealing body 6, static seal body 8 and is embraced
Tight spring 7, the support frame 5 is rounded, the 5 inside connection dynamic sealing body 6 of support frame, outside the dynamic sealing body 6
Side upper and lower ends are mounted on holding spring 7 tightly, and the lower face and outer diameter position of the support frame 5 are connect with static seal body 8, institute
The outer diameter contact position for stating support frame 5 and static seal body 8 is half rubber-wrapping structure.
Embodiment 2：
As shown in figure 3, a kind of reciprocating motion oil seal structure, including support frame 5, dynamic sealing body 6, static seal body 8 and is embraced
Tight spring 7, the support frame 5 is rounded, the 5 inside connection dynamic sealing body 6 of support frame, outside the dynamic sealing body 6
Side upper and lower ends are mounted on holding spring 7 tightly, and the lower face and outer diameter position of the support frame 5 are connect with static seal body 8, institute
The outer diameter contact position for stating support frame 5 and static seal body 8 is half rubber-wrapping structure, the outer diameter of the support frame and static seal body
Not encapsulated position is equipped with fluting 9.
Embodiment 3：
As shown in figure 4, a kind of reciprocating motion oil seal structure, including support frame 5, dynamic sealing body 6, static seal body 8 and is embraced
Tight spring 7, the support frame 5 is rounded, the 5 inside connection dynamic sealing body 6 of support frame, outside the dynamic sealing body 6
Side upper and lower ends are mounted on holding spring 7 tightly, and the lower face and outer diameter position of the support frame 5 are connect with static seal body 8, institute
The outer diameter contact position for stating support frame 5 and static seal body 8 is half rubber-wrapping structure, the outer diameter of the support frame and static seal body
Not encapsulated position is equipped with chamfering 10.
Embodiment 4：
As shown in figure 5, a kind of reciprocating motion oil seal structure, including support frame 5, dynamic sealing body 6, static seal body 8 and is embraced
Tight spring 7, the support frame 5 is rounded, the 5 inside connection dynamic sealing body 6 of support frame, outside the dynamic sealing body 6
Side upper and lower ends are mounted on holding spring 7 tightly, and the lower face and outer diameter position of the support frame 5 are connect with static seal body 8, institute
The outer diameter contact position for stating support frame 5 and static seal body 8 is half rubber-wrapping structure, the outer diameter of the support frame and static seal body
Not encapsulated position is equipped with chamfering 10, and the chamfering 10 is rounded corner.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of reciprocating motion oil seal structure including support frame, dynamic sealing body, static seal body and holds spring, the support tightly
Skeleton is rounded, and connection dynamic sealing body on the inside of the support frame, the outside upper and lower ends of the dynamic sealing body are mounted on embracing
Tight spring, the lower face and outer diameter position of the support frame are connect with static seal body, which is characterized in that the support frame with
The outer diameter contact position of static seal body is half rubber-wrapping structure, and the not encapsulated position of outer diameter of the support frame and static seal body is equipped with
Fluting.
2. a kind of reciprocating motion oil seal structure according to claim 1, which is characterized in that the static seal body is by butyronitrile rubber
Glue, hydrogenated nitrile-butadiene rubber or fluorubber are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027433.7A CN105443764B (en) | 2015-12-31 | 2015-12-31 | A kind of reciprocating motion oil seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511027433.7A CN105443764B (en) | 2015-12-31 | 2015-12-31 | A kind of reciprocating motion oil seal structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105443764A CN105443764A (en) | 2016-03-30 |
| CN105443764B true CN105443764B (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511027433.7A Active CN105443764B (en) | 2015-12-31 | 2015-12-31 | A kind of reciprocating motion oil seal structure |
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| CN (1) | CN105443764B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825705A (en) * | 2018-07-23 | 2018-11-16 | 烟台润蚨祥油封有限公司 | A kind of reciprocating vehicle shock absorber sealing device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946660Y (en) * | 2006-06-16 | 2007-09-12 | 杜杰 | High pressure-resistant oil seal |
| CN201827371U (en) * | 2010-08-31 | 2011-05-11 | 铁岭市友邦橡胶制品有限公司 | Outer framework oil seal with sealed outer ring |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3011135C2 (en) * | 1980-03-22 | 1983-12-22 | Goetze Ag, 5093 Burscheid | Lip seal |
| DE3137111C2 (en) * | 1981-09-18 | 1986-02-06 | Kaco Gmbh + Co, 7100 Heilbronn | Composite body with a solid material part and an elastomer part, in particular for sealing rings |
| CN201180758Y (en) * | 2008-02-04 | 2009-01-14 | 青岛茂林橡胶制品有限公司 | Plate-type reciprocating oil seal |
| CN201836385U (en) * | 2010-10-21 | 2011-05-18 | 陈乙强 | Combined high-pressure oil seal |
| CN205315711U (en) * | 2015-12-31 | 2016-06-15 | 烟台润蚨祥油封有限公司 | Reciprocating motion oil blanket structure |
-
2015
- 2015-12-31 CN CN201511027433.7A patent/CN105443764B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200946660Y (en) * | 2006-06-16 | 2007-09-12 | 杜杰 | High pressure-resistant oil seal |
| CN201827371U (en) * | 2010-08-31 | 2011-05-11 | 铁岭市友邦橡胶制品有限公司 | Outer framework oil seal with sealed outer ring |
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| Publication number | Publication date |
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| CN105443764A (en) | 2016-03-30 |
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