CN101539202B - Combined double-sided oil seal - Google Patents
Combined double-sided oil seal Download PDFInfo
- Publication number
- CN101539202B CN101539202B CN2008100147706A CN200810014770A CN101539202B CN 101539202 B CN101539202 B CN 101539202B CN 2008100147706 A CN2008100147706 A CN 2008100147706A CN 200810014770 A CN200810014770 A CN 200810014770A CN 101539202 B CN101539202 B CN 101539202B
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- oil seal
- sealing
- inner oil
- outer oil
- boss
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Abstract
The invention relates to a sealing element, in particular to a combined double-sided oil seal for simultaneously sealing media in adjacent different chambers of a lubricating system, which overcomes the defects of complicated installation, large assembling space and inconvenient use and check of an oil seal for simultaneously sealing media in adjacent different chambers in the prior art. The combined double-sided oil seal comprises an inner oil seal and an outer oil seal, wherein the inner oil seal and the outer oil seal respectively comprise a sealing lip, a framework and a spring; the sealing lips are all provided with reflux lines; the bottom surfaces of the inner oil seal and the outer oil seal are opposite; the sealing lips of the inner oil seal and the outer oil seal have opposite directions, and the reflux lines on the two sealing lips have opposite directions; and the inner oil seal and the outer oil seal are connected with each other. The oil seal has convenient installation and greatly reduces occupied area after installation; meanwhile, the check for the oil seal is convenient, and a damaged oil seal can be replaced in time and accurately so as to ensure normal lubricating work.
Description
Technical field
The present invention relates to a kind of Sealing, especially a kind of combined double-sided oil seal that medium in two adjacent chamber in the lubrication system is sealed simultaneously.
Background technique
In the existing lubrication system,, oil sealing prevents leaking of lubricant medium or seepage through being set.When the medium in to lubrication system in adjacent two chambers seals simultaneously; Normally in two chambers, oil sealing as shown in Figure 1 is set respectively, during work, need be with the reverse respectively installation of two above-mentioned oil sealings; Trouble is installed; It is bigger that the back occupation space is installed simultaneously, therefore is not suitable for the sealing to precision part, in addition this mode using and check and also caused inconvenience oil sealing.
Summary of the invention
The objective of the invention is to overcome in the existing technology oil sealing that the lubricant medium to adjacent two chambers seals simultaneously install complicated, assembly space is big, use and check the defective of inconvenience; A kind of novel combined double-sided oil seal has been proposed; This oil sealing is easy for installation, the back occupation space is installed reduces greatly, is convenient to simultaneously oil sealing is checked; Can change the oil sealing that damages timely and accurately, guarantee normally carrying out of lubricated work.
The present invention is that the technological scheme below adopting realizes: a kind of combined double-sided oil seal; Comprise inner oil seal and outer oil seal; Wherein inner oil seal and outer oil seal comprise sealing lip, skeleton and spring respectively, and on the sealing lip return wire are set all, and the bottom surface of described inner oil seal and outer oil seal is relative; The sealing lip of inner oil seal and outer oil seal is opposite direction; And the return wire on the sealing lip of inner oil seal and outer oil seal is in the opposite direction, interconnects between inner oil seal and the outer oil seal, wherein; The bottom margin of described inner oil seal evenly is interval with the hemisphere boss; The bottom margin of described outer oil seal evenly is interval with cylindrical boss, and wherein the cylindrical boss that is provided with of outer oil seal bottom can insert in the gap between the hemisphere boss that the inner oil seal bottom is provided with, and perhaps the bottom margin of described outer oil seal evenly is interval with the hemisphere boss; The bottom margin of described inner oil seal evenly is interval with cylindrical boss, and wherein the cylindrical boss that is provided with of inner oil seal bottom can insert in the gap between the hemisphere boss that the outer oil seal bottom is provided with.
Among the present invention, inner oil seal can be connected through following mode with outer oil seal: the bottom of outer oil seal is provided with groove, and corresponding inner oil seal bottom evenly is provided with flange at interval, and inner oil seal is stuck in the groove through flange and is connected with outer oil seal; Also can groove be set in the bottom of inner oil seal, corresponding outer oil seal bottom evenly is provided with flange at interval, and outer oil seal is stuck in the groove through flange and is connected with inner oil seal.
The catch spring wall in the spring outside of inner oil seal and/or outer oil seal is provided with evenly arc boss spaced apart, can check directly through this arc boss whether the assembly process medi-spring comes off, and has guaranteed the proper functioning of oil sealing.
The invention has the beneficial effects as follows: when using this double-sided oil seal, at first interior outer oil seal is installed, directly be assemblied in then between the adjacent lubricated chamber; Therefore this oil sealing compared with prior art; Compact structure, the manufacture cost of having saved oil sealing is installed simple; And assembling back occupation space is less, and this oil sealing has guaranteed that the lubricant medium of two side cavity does not leak and seepage each other not simultaneously.Can check oil sealing whether leakage of oil in use through being arranged on gap between two oil sealings in addition; And when the lubricant medium of both sides not simultaneously; Can also directly judge the oil sealing leakage of oil of which side according to the leakage of oil situation, be convenient to change timely and accurately the oil sealing of damage.
Description of drawings
Accompanying drawing 1 is the half sectional view to oil sealing in the existing technology;
Accompanying drawing 2 is the half sectional view of oil sealing in the embodiment of the invention 1;
Accompanying drawing 3 is a C portion boss schematic representation among Fig. 2;
Accompanying drawing 4 is a D portion boss schematic representation among Fig. 2;
Accompanying drawing 5 be among Fig. 2 A-B to catch spring wall boss schematic representation;
Accompanying drawing 6 is the half sectional view of oil sealing in the embodiment of the invention 2;
Accompanying drawing 7 is the half sectional view of oil sealing in the embodiment of the invention 3.
Embodiment
Embodiment 1
As shown in Figure 2, the bottom of outer oil seal 1 and inner oil seal 2 is relative, the sealing lip 3 of two oil sealings and 4 in the opposite direction, and the return wire 5 of two sealing lips and 6 is in the opposite direction.Wherein the bottom of outer oil seal 1 is provided with groove 7, and the bottom of inner oil seal 2 evenly is provided with flange 8 at interval, and groove 7 bottoms are provided with a projection, is stuck on this projection after flange 8 inserts groove 7, has realized being connected of inner oil seal 2 and outer oil seal 1.The bottom outer rim of outer oil seal 1 and inner oil seal 2 all is provided with boss simultaneously; Circumferencial direction along outer oil seal 1 bottom margin evenly is provided with cylindrical boss 9 at interval; Its distribution situation is as shown in Figure 3, and the circumferencial direction of inner oil seal 2 bottom margins evenly is provided with hemisphere boss 10, and its distribution situation is as shown in Figure 4; The cylindrical boss 9 of outer oil seal 1 bottom can insert between the hemisphere boss 10 of inner oil seal 2 bottoms; Its effect is still to have certain clearance after at first can making inner oil seal 2 and outer oil seal 1 combination, is convenient to check whether leakage of oil of oil sealing, and the oil sealing leakage of oil of which side; The adjustable angle that secondly can make inside and outside oil sealing rotate each other and rotate makes between two oil sealings gap everywhere equate that all the assurance oil sealing is not adorned partially during the assembling oil sealing.The catch spring wall 17 in the sealing lip 3 of outer oil seal 1 and inner oil seal 2 and 4 the spring outside is provided with evenly arc boss spaced apart; As shown in Figure 5; Can observe directly the spring in the inside and outside oil sealing through this arc boss; So that whether the inspection spring comes off in installation or assembly process, in time change the oil sealing that damages, guaranteed the proper functioning of oil sealing.
When this double-sided oil seal uses; At first make the relatively also rotation of bottom surface of inner oil seal 2 and outer oil seal 1; Flange 8 with inner oil seal 2 bottoms in the rotary course inserts in the groove 7 of outer oil seal 1 bottom, makes inner oil seal 2 be connected the back with outer oil seal 1 and forms this double-sided oil seal, then it is installed between adjacent two chambers of lubrication system; Lubricant medium in two chambers can be the same or different, and inside and outside oil sealing seals the lubricant medium of sealing lip side separately respectively during use.After oil sealing used the long period, if a side seal wherein damages, lubricant medium can flow out along the gap between the inside and outside oil sealing, can judge in view of the above whether oil sealing damages; Lubricant medium in adjacent two chambers not simultaneously, the color through the lubricant medium that flows out in the gap etc. can also judge exactly that which side seal damages, thereby the oil sealing that damages is changed timely and accurately.When therefore using this double-sided oil seal that the lubricant medium between the adjacent chamber is sealed, not only assembling and easy for installation, good sealing effect, and also inspection and maintenance is very convenient, is applicable to the sealing of the precision part that assembly space is less.
In the present embodiment, can groove be set in the bottom of inner oil seal, the bottom of outer oil seal evenly is provided with flange at interval, and flange inserts in the groove, thereby inner oil seal is connected with outer oil seal.The while distribution of inner oil seal bottom boss can be as shown in Figure 3, and the distribution of outer oil seal bottom boss is as shown in Figure 4, and promptly the boss of inner oil seal bottom can insert between the boss of outer oil seal bottom setting.
As shown in Figure 6; The skeleton 11 of outer oil seal 1 is arranged on the outside of the skeleton 12 of inner oil seal 2; The cooperation place of the outer surface of inner oil seal 2 and outer oil seal 1 and inner oil seal 2 evenly is interval with boss 13, forms interference fit between boss 13 and the outer oil seal 1, is connected through interference fit between inner oil seal 2 and the outer oil seal 1; Guaranteed to have certain clearance between inner oil seal 2 and the outer oil seal 1 through boss 13 simultaneously; After inside and outside oil sealing damaged, lubricant medium can flow out along this gap, was convenient to the inspection of oil sealing and replacing in time.The outside of the sealing lip 4 of the internal surface of inner oil seal 2 and inner oil seal 2 is provided with back-up ring 15, and this back-up ring 15 both can play the effect of guiding when oil sealing assembles, and has prevented that also inner oil seal spring 14 from falling the spring phenomenon simultaneously.Back-up ring 15 is provided with the hole 16 that is evenly distributed in addition, the impact force of the lubricant medium that this hole has reduced to receive under sealing lip 4 working staties of inner oil seal 2, and stressedly evenly play the effect of protection sealing lip 4, prolonged the working life of oil sealing.
In the present embodiment, also can at interval boss be set with the cooperation place of inner oil seal 2 is even, form interference fit between this boss and the inner oil seal, thereby inner oil seal is connected with outer oil seal at the internal surface and the outer oil seal 1 of outer oil seal 1.
Other are with embodiment 1.
In the present embodiment, outer oil seal 1 is integral structure with inner oil seal 2.The double-sided oil seal of this structure is convenient to the manufacturing of oil sealing, need not simultaneously inner oil seal and outer oil seal are installed and can directly be used.
In addition, the oil sealing of this structure also can be used with other oil sealings, thereby realizes other seal actions.
Other are with embodiment 1.
Claims (4)
1. combined double-sided oil seal; Comprise inner oil seal and outer oil seal, wherein inner oil seal and outer oil seal comprise sealing lip, skeleton and spring respectively, and on the sealing lip return wire are set all; The bottom surface of described inner oil seal and outer oil seal is relative; The sealing lip of inner oil seal and outer oil seal is opposite direction, and the return wire on the sealing lip of inner oil seal and outer oil seal is in the opposite direction, interconnects between inner oil seal and the outer oil seal; It is characterized in that: the bottom margin of described inner oil seal evenly is interval with the hemisphere boss; The bottom margin of described outer oil seal evenly is interval with cylindrical boss, and wherein the cylindrical boss that is provided with of outer oil seal bottom can insert in the gap between the hemisphere boss that the inner oil seal bottom is provided with, and perhaps the bottom margin of described outer oil seal evenly is interval with the hemisphere boss; The bottom margin of described inner oil seal evenly is interval with cylindrical boss, and wherein the cylindrical boss that is provided with of inner oil seal bottom can insert in the gap between the hemisphere boss that the outer oil seal bottom is provided with.
2. combined double-sided oil seal according to claim 1 is characterized in that: the bottom of outer oil seal is provided with groove, and corresponding inner oil seal bottom evenly is provided with flange at interval, and inner oil seal is stuck in the groove through flange and is connected with outer oil seal.
3. combined double-sided oil seal according to claim 1 is characterized in that: the bottom of inner oil seal is provided with groove, and corresponding outer oil seal bottom evenly is provided with flange at interval, and outer oil seal is stuck in the groove through flange and is connected with inner oil seal.
4. combined double-sided oil seal according to claim 1 is characterized in that: the catch spring wall in the described inner oil seal and/or the outer oil seal spring outside is provided with evenly arc boss spaced apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100147706A CN101539202B (en) | 2008-03-20 | 2008-03-20 | Combined double-sided oil seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100147706A CN101539202B (en) | 2008-03-20 | 2008-03-20 | Combined double-sided oil seal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101539202A CN101539202A (en) | 2009-09-23 |
| CN101539202B true CN101539202B (en) | 2012-06-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100147706A Expired - Fee Related CN101539202B (en) | 2008-03-20 | 2008-03-20 | Combined double-sided oil seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101539202B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180838Y (en) * | 1993-11-01 | 1994-10-26 | 重庆市九龙坡区西站橡胶制品厂 | Framework type rubber oil sealing device |
| CN2323193Y (en) * | 1997-07-26 | 1999-06-09 | 代占朝 | Double-spring and -wall type frame self-tightening oil seal |
| CN2553196Y (en) * | 2002-07-18 | 2003-05-28 | 大庆油田有限责任公司 | O-shaped two-lip sealing ring |
| CN200940685Y (en) * | 2006-05-23 | 2007-08-29 | 青岛开世密封工业有限公司 | Gear ring oil seal |
| CN200961689Y (en) * | 2006-10-23 | 2007-10-17 | 青岛开世密封工业有限公司 | Inside and outside combination type main tooth oil seal |
| CN201187581Y (en) * | 2008-03-20 | 2009-01-28 | 青岛开世密封工业有限公司 | Combined two-sided oil seal |
-
2008
- 2008-03-20 CN CN2008100147706A patent/CN101539202B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2180838Y (en) * | 1993-11-01 | 1994-10-26 | 重庆市九龙坡区西站橡胶制品厂 | Framework type rubber oil sealing device |
| CN2323193Y (en) * | 1997-07-26 | 1999-06-09 | 代占朝 | Double-spring and -wall type frame self-tightening oil seal |
| CN2553196Y (en) * | 2002-07-18 | 2003-05-28 | 大庆油田有限责任公司 | O-shaped two-lip sealing ring |
| CN200940685Y (en) * | 2006-05-23 | 2007-08-29 | 青岛开世密封工业有限公司 | Gear ring oil seal |
| CN200961689Y (en) * | 2006-10-23 | 2007-10-17 | 青岛开世密封工业有限公司 | Inside and outside combination type main tooth oil seal |
| CN201187581Y (en) * | 2008-03-20 | 2009-01-28 | 青岛开世密封工业有限公司 | Combined two-sided oil seal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101539202A (en) | 2009-09-23 |
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Granted publication date: 20120613 Termination date: 20130320 |