CN204358104U - A kind of flexible seal ring - Google Patents
A kind of flexible seal ring Download PDFInfo
- Publication number
- CN204358104U CN204358104U CN201420827910.2U CN201420827910U CN204358104U CN 204358104 U CN204358104 U CN 204358104U CN 201420827910 U CN201420827910 U CN 201420827910U CN 204358104 U CN204358104 U CN 204358104U
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- axle
- lip
- seal ring
- sealing
- flexible seal
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Abstract
The utility model discloses a kind of flexible seal ring, belong to the field of sealing technology of oil, fat, water or the fluid such as gas, dust.Flexible seal ring of the present utility model, comprises and can fit in sealed lip on axle and for installing fixing installation main body, adopt gauffer curved part to connect between described installation main body and sealed lip.Flexible seal ring of the present utility model, when there is beat by a relatively large margin in axle, gauffer curved part can compensate the displacement deformation that axle beat produces, sealed lip can intactly all the time be fitted with axle, the lip inner headed face of seal ring is there will not be to be become oval pass by axial compression, and the situation that the lip of sealing and the rubbing surface of axle depart from.
Description
Technical field
The utility model relates to the field of sealing technology for oil, fat, water or the fluid such as gas, dust, particularly large beat amount or the larger rotation radial seal occasion of axle coaxiality error.
Background technique
Along with China's industry in recent years and scientific and technological development, sealing technique also obtains significant progress as the basic technology of industry.Domestic and international Sealing manufacturer puts out a new product one after another, to tackle each segmented industry, and the seal request of segmentation equipment.As the Sealing for oil cylinder piston and piston rod, the radial oil sealing of dust-proof dust seal, running shaft and the V-seal part of end face seal etc.The Sealing of present stage can meet the usage requirement of general device, but in some specific occasion, as running shaft exist by a relatively large margin beat when, how reliably sealing then becomes the difficult problem in industry.Now be described in detail as follows:
The general V-seal part adopting radial oil sealing or end face seal of running shaft sealing.Radial oil sealing has number of different types, as band skeleton or be not with skeleton, outsourcing skeleton or interior bag skeleton, be with secondary lip or be not with secondary lip, material has nitrile butadiene rubber, fluorine rubber, butyronitrile folder cloth, fluorine folder cloth or special fibre cloth etc. are multiple.When the beat amount of turning axle and coaxiality error less, sealed lip all the time can preferably and axle fit, it has and prevents grease seepage and dust-proof effect preferably, but its axle generally should control within 0.7mm in total beat amount of sealing area.If the beat amount of axle is slightly large or coaxiality error is slightly large, the lip inner headed face of seal ring can be become oval pass by axial compression, and the lip of oil sealing can not carry out enough compensation, therefore the lip of sealing and the rubbing surface of axle depart from, it loses sealing function, and after seal ring extruded by axle, due to the improper distortion of seal ring, keep-spring may be extruded, oil sealing main body and waist may be squeezed bad after exceeding regime of elastic deformation, so not only lose sealing function, and easily cause the security incident of equipment.
The V-seal part of end face seal is also called end face water seal.It is generally made up of gum, and the water seal of heavy in section VE type can adapt to larger axis or radial displacement, and its beat ability adapting to axle is stronger.But the elasticity of what its end face seal was mainly leaned on the is rubber of V-shaped seal ring own, its elastic compression power is with the prolongation of seal distance and the prolongation of service time, ageing of rubber and weakening, and its sealing is unreliable.Shown in its title " water seal ", it is generally used for auxiliary seal, is used for preventing entering of the foreign material such as outside dust and water, and can not be applied to the primary seal of sealing fluid or lubricating grease.
Owing to facing above-mentioned Problems existing, therefore large beat amount or the larger rotary seal of axle coaxiality error are comparatively difficult to resolve certainly, adopt traditional Sealing can not adapt to the seal request of this special operation condition.
Model utility content
Goal of the invention of the present utility model is: for above-mentioned Problems existing, provides a kind of flexible seal ring, mainly solve axle have larger beat amount or coaxiality error larger time the sealing difficult problem brought; When there is beat by a relatively large margin in axle, pleat curved part can compensate the displacement deformation that axle beat produces, sealed lip can intactly all the time be fitted with axle, and wrinkle there will not be the lip inner circle mill of seal ring to be become oval pass by axial compression, and the situation that the lip of sealing and the rubbing surface of axle depart from.Lip is just being pressed on the rubbing surface of axle by keep-spring all the time, can not come off, when axle beat and not beat, there is not any change in the working condition of sealing surface, and by the gauffer curved part between the main body of flexible seal ring and lip from Row sum-equal matrix.
The technical solution adopted in the utility model is as follows:
Flexible seal ring of the present utility model, comprises and can fit in sealed lip on axle and for installing fixing installation main body, adopt gauffer curved part to connect between described installation main body and sealed lip.
Owing to have employed said structure, when there is beat by a relatively large margin in axle, gauffer curved part can compensate the displacement deformation that axle beat produces, sealed lip can intactly all the time be fitted with axle, the lip inner headed face of seal ring is there will not be to be become oval pass by axial compression, and the situation that the lip of sealing and the rubbing surface of axle depart from.Lip is just being pressed on the rubbing surface of axle by keep-spring all the time, can not come off, when axle beat and not beat, there is not any change in the working condition of sealing surface, and by the gauffer curved part between the main body of flexible seal ring and lip from Row sum-equal matrix; Therefore can effectively solve axle have larger beat amount or coaxiality error larger time the sealing difficult problem brought.
Flexible seal ring of the present utility model, described sealed lip outer wall is arranged with keep-spring, and sealed lip is just being pressed on axle.
Due to said structure, when sealed lip is with axle beat, gauffer curved part carries out corresponding deformation, and can not form extra axial tension or power of toppling to spring, sealed lip is just being pressed on axle by keep-spring all the time; And keep-spring is in desirable stress all the time, can not comes off or damage and cause the accident.Keep-spring can make that sealed lip is stressed to be fitted on the periphery of axle all the time, for meeting the requirement of strength that seal ring uses, joint can be bent to gauffer to strengthen, when there is beat by a relatively large margin in axle, gauffer curved part can compensate the displacement deformation that axle beat produces, sealed lip can intactly all the time be fitted with axle, there will not be the lip inner headed face of seal ring to be become oval pass by axial compression, and the situation that the lip of sealing and the rubbing surface of axle depart from.
Flexible seal ring of the present utility model, described gauffer curved part is provided with the lug boss that at least one gauffer is formed.
Due to said structure, according to the beat amplitude size of axle, can select flexibility and the intensity of fold, the needs used with satisfied reality, make its Applicable scope wider.
Flexible seal ring of the present utility model, described gauffer curved part is provided with the protruding structure that two gauffers form " W " font.
Due to said structure, when selection two gauffers, the protruding structure of " W " font can be made into, thus strengthen the intensity of fold curved part and adapt to the adjustment capability of beat.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, flexible seal ring of the present utility model, when there is beat by a relatively large margin in axle, gauffer curved part can compensate the displacement deformation that axle beat produces, sealed lip can intactly all the time be fitted with axle, there will not be the lip inner headed face of seal ring to be become oval pass by axial compression, and the lip of sealing and the rubbing surface of axle depart from thus cause the situation of seal failure.
2, flexible seal ring of the present utility model, lip is just being pressed on the rubbing surface of axle by keep-spring all the time, can not come off, when axle beat and not beat, there is not any change in the working condition of sealing surface, and the gauffer curved part passed through between the main body of flexible seal ring and lip is from Row sum-equal matrix, thus, seal ring keep-spring can not squeezedly come off or damage, and also can not cause the damage of sealing configuration or equipment.
3, flexible seal ring of the present utility model, structure is simple, with low cost, applied widely, is applicable to applying.
Accompanying drawing explanation
The utility model illustrates by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is traditional radial oil seal structure figure; Mark in this figure: 1-installs the joint of main body, 2-lip, 3-keep-spring, 4-main body and lip;
Fig. 2 is the traditional schematic diagram of radial oil sealing under axle swinging state; Mark in this figure: the sealing disengagement zone that the joint of 1-installation main body, 2-lip, 3-keep-spring, 4-main body and lip, 5-axle, 6-axle beat produce;
Fig. 3 is the V-seal part structural representation of end face seal; Mark in this figure: 1-installs main body, 2-sealed lip, 3-axle, 4-seal face;
Fig. 4 is the utility model flexible seal ring structural drawing; Mark in this figure: 1-installs the joint of main body, 2-sealed lip, 3-keep-spring, 4-main body and lip;
Fig. 5 is the schematic diagram of the utility model flexible seal ring under axle swinging state; Mark in this figure: 1-installs joint, the 5-axle of main body, 2-sealed lip, 3-keep-spring, 4-main body and lip.
Embodiment
All features disclosed in this specification, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this specification (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
Fig. 1 is traditional radial oil seal structure figure.Only do rotation motion at axle, when the coaxiality error not making beat motion and axle controls better, sealed lip 2 under the compression of keep-spring 3, all the time can preferably and axle fit, it has and prevents grease seepage and dust sealing effect preferably.
Fig. 2 is the traditional schematic diagram of radial oil sealing under axle swinging state.As shown in the figure, when there is beat by a relatively large margin in axle 5, lip 2 inner headed face of seal ring can be pressed into oval pass by axle 5, and the lip 2 of oil sealing is subject to the restriction of joint 4, enough compensation can not be carried out, therefore the lip 2 of sealing departs from the rubbing surface of axle 5, after departing from, sealing place forms seal clearance region 6, therefore it loses sealing function.And after seal ring extruded by axle 5, seal ring is in improper stressed twisted state, and keep-spring 3 may be extruded, and sealed body 1 and joint 4 may be squeezed bad after exceeding regime of elastic deformation, so not only lose sealing function, and easily cause the security incident of equipment.
Fig. 3 is the V-seal part structural representation of end face seal.Size due to sealed lip 2 can be accomplished very large, therefore the water seal of heavy in section VE type can adapt to larger axis or radial displacement, and its beat ability adapting to axle 3 is stronger.But the elasticity of what its end face seal was mainly leaned on the is rubber of sealed lip 2 own, its elastic compression power is with the prolongation of seal distance and the prolongation of service time, ageing of rubber and weakening, and its sealing is unreliable.Shown in its title " water seal ", it is generally used for auxiliary seal, is used for preventing entering of the foreign material such as outside dust and water, and can not be applied to the primary seal of sealing fluid or lubricating grease.
Fig. 4 is flexible seal ring structural drawing of the present utility model.As shown in the figure, sealed lip 2, under the compression of keep-spring 3, contacts with the sealing surface of axle, and main body 1 adapts to the change of the various position of sealed lip 2 with the joint 4 of lip 2, it can not limit the position of sealed lip 2, meets diverse location seal request by the distortion of self gauffer curved part 4.Flexible seal ring, comprises and can fit in sealed lip on axle and for installing fixing installation main body, it is characterized in that: adopt gauffer curved part to connect between described installation main body and sealed lip.
On gauffer curved part, be wherein provided with the lug boss that at least one gauffer is formed, also can be a fold, also can be two or more, when employing two gauffers, the protruding structure of " W " font can be formed.
Fig. 5 is the schematic diagram of the utility model flexible seal ring under axle swinging state.As shown in the figure, when there is beat motion in axle 5, sealed lip 2 is under the compression of keep-spring 3, all the time servo-actuated with the sealing surface of axle 5 and fit closely, because main body 1 and the joint 4 of lip 2 are gauffer Curved, it can not cause restrictive function to lip 2 with the servo-actuated of axle 5, therefore lip 2 can not be pressed into oval pass by axle 5, its sealing area also there will not be the situation of disengaging, and lip 2 is just being pressed on the outer surface of axle 5 by keep-spring 3 all the time, lip 2 there will not be larger abnormal deformation, therefore keep-spring 3 difficult drop-off, also just under the prerequisite ensureing sealing effect, keep-spring 3 is there will not be to come off and the security incident caused.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (4)
1. a flexible seal ring, comprises and can fit in sealed lip on axle and for installing fixing installation main body, it is characterized in that: adopt gauffer curved part to connect between described installation main body and sealed lip.
2. flexible seal ring as claimed in claim 1, is characterized in that: described sealed lip outer wall is arranged with keep-spring, sealed lip is just being pressed on axle.
3. flexible seal ring as claimed in claim 1 or 2, is characterized in that: described gauffer curved part is provided with the lug boss that at least one gauffer is formed.
4. flexible seal ring as claimed in claim 3, is characterized in that: described gauffer curved part is provided with the protruding structure that two gauffers form " W " font.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827910.2U CN204358104U (en) | 2014-12-24 | 2014-12-24 | A kind of flexible seal ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420827910.2U CN204358104U (en) | 2014-12-24 | 2014-12-24 | A kind of flexible seal ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204358104U true CN204358104U (en) | 2015-05-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420827910.2U Active CN204358104U (en) | 2014-12-24 | 2014-12-24 | A kind of flexible seal ring |
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| CN (1) | CN204358104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662025A (en) * | 2017-03-27 | 2018-10-16 | 株式会社捷太格特 | Rolling bearing |
| CN112483652A (en) * | 2020-10-29 | 2021-03-12 | 一重集团(黑龙江)专项装备科技有限公司 | Wedge compensation type every single move sealing device |
-
2014
- 2014-12-24 CN CN201420827910.2U patent/CN204358104U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662025A (en) * | 2017-03-27 | 2018-10-16 | 株式会社捷太格特 | Rolling bearing |
| CN108662025B (en) * | 2017-03-27 | 2021-10-08 | 株式会社捷太格特 | Rolling bearing |
| CN112483652A (en) * | 2020-10-29 | 2021-03-12 | 一重集团(黑龙江)专项装备科技有限公司 | Wedge compensation type every single move sealing device |
| CN112483652B (en) * | 2020-10-29 | 2023-01-31 | 一重集团(黑龙江)专项装备科技有限公司 | Wedge compensation type every single move sealing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |