CN205371639U - Multistage lip van -type sealing device - Google Patents
Multistage lip van -type sealing device Download PDFInfo
- Publication number
- CN205371639U CN205371639U CN201520990228.XU CN201520990228U CN205371639U CN 205371639 U CN205371639 U CN 205371639U CN 201520990228 U CN201520990228 U CN 201520990228U CN 205371639 U CN205371639 U CN 205371639U
- Authority
- CN
- China
- Prior art keywords
- ring
- outer shroud
- lip
- bizet
- waist
- Prior art date
- 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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Links
- 238000007789 sealing Methods 0.000 title claims abstract description 58
- 239000000428 dust Substances 0.000 claims abstract description 16
- 239000004519 grease Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims abstract description 4
- 235000014593 oils and fats Nutrition 0.000 claims description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 3
- 231100000719 pollutant Toxicity 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
Abstract
The utility model provides a multistage lip van -type sealing device, just follow the rotating ring of the rotation of axes including fixing at inside quiet ring and the cover of end cover of equipment in the axis of rotation, the crisscross installation each other of rotating ring and quiet ring, be formed with tortuous depot fat groove between the two, the depot fat groove in be provided with annular seal lip A, seal lip B and dust lip, three's structure is the same, forms by shoulder, waist and crown, wherein the shoulder plays the fixed action, on the outer disc of shoulder is fixed in rotating ring or quiet ring, stretch out in one side slant of waist and crown disc in by the shoulder, and waist among seal lip A and the seal lip B and crown to stretch out in orientation and the depot fat groove flow direction of grease relative, waist and crown stretches out the orientation orientation external world among the dust lip, the interior disc of crown is protruding form, boss contacts sealedly in order to form with rotating ring or quiet ring. The device can prevent external pollutant to get into sealed chamber, can prevent that the grease from revealing simultaneously again.
Description
Technical field
This utility model provides rotating shaft bearing housing or gearbox lubrication oil sealing device in a kind of plant equipment, particularly relates to a kind of multistage lip van-type sealing device.
Background technology
Labyrinth seal is to set several belt sealing teeth being arranged in order rotating around axle, is formed and a series of dam gap and expand cavity between tooth and tooth, sealed medium when passing through the gap in tortuous labyrinth generation throttle effect and reach the device of the purpose of Drain Resistance.Owing to there is gap between the rotor of labyrinth seal and casing, without solid contact, and allowed thermal expansion, and therefore adapting to the occasion of high temperature, high pressure, high speed-frequency, this seal form is widely used in the sealing of steam turbine, gas turbine, compressor, the axle head of aerator and each inter-stage.
In the occasion that some instructions for uses are stricter, sealing device not only to reach the zero leakage of lubricating oil in annular seal space in use, but also to reach to prevent the pollutant in the external world from entering the purpose within annular seal space, in addition, also there is higher requirement in service life for sealing member, therefore it provides a kind of sealing property is very excellent, and the sealing device of long perfomance life, becomes this area problem demanding prompt solution.
Summary of the invention
This utility model provides a kind of multistage lip van-type sealing device, solves the deficiency in background technology, and this device can stop the pollutant in the external world to enter annular seal space, is prevented from again oils and fats simultaneously and reveals, and its performance is very excellent, long perfomance life.
Realizing the technical scheme that this utility model above-mentioned purpose adopts is:
A kind of multistage lip van-type sealing device, the stationary ring at least including being fixed on equipment cover internal and set are on the rotating shaft and the rotating ring rotated with the axis, the cross section of described stationary ring is C font, including internal ring B, outer shroud B and connection ring B, outer shroud B is enclosed within internal ring B, connecting ring B to be fixed to one structure by internal ring B and outer shroud B, one end of internal ring B and outer shroud B connects with being connected ring B；nullThe cross section of described rotating ring is anti-C font，It includes internal ring A、Outer shroud A and connection ring A，Wherein internal ring A contacts with rotating axle，Outer shroud A is enclosed within internal ring A，Connect ring A to be fixed to one structure by internal ring A and outer shroud A，One end of described internal ring A and outer shroud A is fixed with being connected ring A，Described rotating ring and the interlaced installation of stationary ring，Outer shroud A is between internal ring B and outer shroud B，The grease storage groove of complications it is formed with between rotating ring and stationary ring，Described grease storage groove is provided with the sealing lip A of ring-type、Sealing lip B and dust excluder lips，Three's structure is identical，By shoulder、Waist and bizet composition，Wherein shoulder plays fixation，The periphery of shoulder is fixed on rotating ring or stationary ring，Described waist and bizet by the side of shoulder inner headed face oblique in stretch out，And sealing lip A and the waist in sealing lip B and bizet to stretch out direction relative with the flow direction of oils and fats in grease storage groove，In dust excluder lips, waist and bizet stretches out direction towards the external world；The inner headed face of described bizet is convex, and described boss contacts to form sealing with rotating ring or stationary ring.
Being fixed with positioning step on described stationary ring, described positioning step is positioned at two ends or the middle part of outer shroud B.
Described sealing lip A, sealing lip B and the inside of dust excluder lips are provided with spring in the form of a ring, and described spring is arranged in bizet, is used for keeping bizet inwardly to tighten up.
Multistage lip van-type sealing device provided by the utility model has the advantage that sealing device provided by the utility model in use, lubricant grease in annular seal space can progress in the grease storage groove between rotating ring and stationary ring by sealing lip A, due to sealing lip A and the waist in sealing lip B and bizet to stretch out direction relative with the flow direction of oils and fats in grease storage groove, therefore sealing lip A is prevented from oils and fats by herein；Even if having amount of grease to cross sealing lip A, then again due to the sealing function of sealing lip B, therefore sealing property is very excellent.Simultaneously because be provided with spring in both bizets, therefore after sealing lip A and sealing lip B creates abrasion in rotary course, spring ensure that both are close on rotating ring or stationary ring all the time, and therefore sealing property can be guaranteed.Meanwhile, in dust excluder lips waist and bizet stretch out direction towards the external world, therefore extraneous dust, sewage, foreign material etc., be subject to the stop of dust excluder lips, therefore cannot be introduced into inside sealing device.
Accompanying drawing explanation
The overall structure schematic diagram of the multistage lip van-type sealing device that Fig. 1 provides for this utility model；
In figure: 1-internal ring B, 2-outer shroud B, 3-connect ring B, 4-sealing lip B, 5-sealing lip A, 6-dust excluder lips, and 7-internal ring A, 8-outer shroud A, 9-connect ring A, 10-shoulder, 11-waist, 12-bizet, 13-positioning step, 14-spring, 15-grease storage groove.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model done detailed specific description, but protection domain of the present utility model is not limited to following example.
The structure of the multistage lip van-type sealing device that this utility model provides is as shown in Figure 1, the stationary ring at least including being fixed on equipment cover internal and set are on the rotating shaft and the rotating ring rotated with the axis, the cross section of described stationary ring is C font, including internal ring B1, outer shroud B2 and connection ring B3, outer shroud B is enclosed within internal ring B, connecting ring B to be fixed to one structure by internal ring B and outer shroud B, one end of internal ring B and outer shroud B connects with being connected ring B；Being fixed with positioning step 13 on described stationary ring, described positioning step 13 is positioned at two ends or the middle part of outer shroud B2.
The cross section of described rotating ring is anti-C font, it includes internal ring A7, outer shroud A8 and connects ring A9, and wherein internal ring A7 contacts with rotating axle, and outer shroud A8 is enclosed within internal ring A7, connecting ring A to be fixed to one structure by internal ring A and outer shroud A, one end of described internal ring A and outer shroud A is fixed with being connected ring A.
Described rotating ring and the interlaced installation of stationary ring, outer shroud A is between internal ring B and outer shroud B, the grease storage groove 15 of complications it is formed with between rotating ring and stationary ring, described grease storage groove 15 is provided with the sealing lip A5 of ring-type, sealing lip B4 and dust excluder lips 6, three's structure is identical, by shoulder 10, waist 11 and bizet 12 form, wherein 10 fixations of shoulder, the periphery of shoulder is fixed on rotating ring or stationary ring, described waist and bizet by the side of shoulder inner headed face oblique in stretch out, and sealing lip A and the waist 11 in sealing lip B and bizet 12 to stretch out direction relative with the flow direction of oils and fats in grease storage groove, in dust excluder lips, waist and bizet stretches out direction towards the external world.The inner headed face of described bizet 12 is convex, and described boss contacts to form sealing with rotating ring or stationary ring.The shoulder of sealing lip A5 is fixed on the inner headed face of outer shroud B, and its bizet contacts with the periphery of outer shroud A to be formed and seals；The shoulder of sealing lip B4 is fixed on the inner headed face of outer shroud A, and its bizet contacts with the periphery of internal ring B to be formed and seals；The shoulder of dust excluder lips 6 is fixed on the inner headed face of internal ring B, and its bizet contacts with the periphery of internal ring A to be formed and seals.Described sealing lip A, sealing lip B and the inside of dust excluder lips are provided with spring 14 in the form of a ring, and described spring 14 is arranged in bizet, are used for keeping bizet inwardly to tighten up to keep sealing.
Claims (3)
1. a multistage lip van-type sealing device, the stationary ring at least including being fixed on equipment cover internal and set are on the rotating shaft and the rotating ring rotated with the axis, the cross section of described stationary ring is C font, including internal ring B, outer shroud B and connection ring B, outer shroud B is enclosed within internal ring B, connecting ring B to be fixed to one structure by internal ring B and outer shroud B, one end of internal ring B and outer shroud B connects with being connected ring B；nullThe cross section of described rotating ring is anti-C font，It includes internal ring A、Outer shroud A and connection ring A，Wherein internal ring A contacts with rotating axle，Outer shroud A is enclosed within internal ring A，Connect ring A to be fixed to one structure by internal ring A and outer shroud A，One end of described internal ring A and outer shroud A is fixed with being connected ring A，It is characterized in that: described rotating ring and the interlaced installation of stationary ring，Outer shroud A is between internal ring B and outer shroud B，The grease storage groove of complications it is formed with between rotating ring and stationary ring，Described grease storage groove is provided with the sealing lip A of ring-type、Sealing lip B and dust excluder lips，Three's structure is identical，By shoulder、Waist and bizet composition，Wherein shoulder plays fixation，The periphery of shoulder is fixed on rotating ring or stationary ring，Described waist and bizet by the side of shoulder inner headed face oblique in stretch out，And sealing lip A and the waist in sealing lip B and bizet to stretch out direction relative with the flow direction of oils and fats in grease storage groove，In dust excluder lips, waist and bizet stretches out direction towards the external world；The inner headed face of described bizet is convex, and described boss contacts to form sealing with rotating ring or stationary ring.
2. multistage lip van-type sealing device according to claim 1, it is characterised in that: being fixed with positioning step on described stationary ring, described positioning step is positioned at two ends or the middle part of outer shroud B.
3. multistage lip van-type sealing device according to claim 1, it is characterised in that: described sealing lip A, sealing lip B and the inside of dust excluder lips are provided with spring in the form of a ring, and described spring is arranged in bizet, is used for keeping bizet inwardly to tighten up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520990228.XU CN205371639U (en) | 2015-12-03 | 2015-12-03 | Multistage lip van -type sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520990228.XU CN205371639U (en) | 2015-12-03 | 2015-12-03 | Multistage lip van -type sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371639U true CN205371639U (en) | 2016-07-06 |
Family
ID=56261127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520990228.XU Active CN205371639U (en) | 2015-12-03 | 2015-12-03 | Multistage lip van -type sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886844A (en) * | 2018-09-10 | 2020-03-17 | 布鲁斯密封***有限公司 | Shaft seal with shaft seal ring |
| WO2024104734A1 (en) * | 2022-11-17 | 2024-05-23 | Sew-Eurodrive Gmbh & Co. Kg | Sealing arrangement with flange part and rotatably mounted shaft |
-
2015
- 2015-12-03 CN CN201520990228.XU patent/CN205371639U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110886844A (en) * | 2018-09-10 | 2020-03-17 | 布鲁斯密封***有限公司 | Shaft seal with shaft seal ring |
| WO2024104734A1 (en) * | 2022-11-17 | 2024-05-23 | Sew-Eurodrive Gmbh & Co. Kg | Sealing arrangement with flange part and rotatably mounted shaft |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171123 Address after: 435300 Qichun County, Hubei Province, Chek Tung Village, Chek Tung town, Qichun County Patentee after: New Polytron Technologies Inc in Hubei Address before: 435300 Dongfang garden, Cao he Town, Qichun County, Huanggang, Hubei Province, 5A-1-1301 Patentee before: Deng Lunsheng |