CN205371626U - Two subdivision formula sealing device - Google Patents
Two subdivision formula sealing device Download PDFInfo
- Publication number
- CN205371626U CN205371626U CN201520770851.4U CN201520770851U CN205371626U CN 205371626 U CN205371626 U CN 205371626U CN 201520770851 U CN201520770851 U CN 201520770851U CN 205371626 U CN205371626 U CN 205371626U
- Authority
- CN
- China
- Prior art keywords
- ring
- dust
- ring gear
- rotating
- gear
- 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.)
- Active
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The utility model provides a two subdivision formula sealing device includes quiet ring at least and overlaps in the axis of rotation and follow the rotating ring of the rotation of axes, quiet ring fix the inside at end cover of equipment, rotating ring and quiet ring be subdivision formula structure, constitute by the semicircle ring that two quilts were cut open, rotating ring and quiet ring all are provided with the attachment bolt in its subdivision department to fix the semicircle ring that two quilts were cut open for a whole through the attachment bolt. The left and right sides of rotating ring is oil scraper ring and fender dirt ring respectively, combs dentate sealed ring gear A for bellied cross -section is between oil scraper ring and the fender dirt ring, quiet ring by location step with and the cross -section equally for the comb dentate sealed ring gear B form, sealed ring gear B cover on sealed ring gear A and both each other crisscross interlude form a reservoir of buckling jointly. The device can stop external pollutant to get into sealed chamber, and its sealing performance ten minutes is good, long service life is of a specified duration.
Description
Technical field
This utility model provides rotating shaft bearing housing or gear box lubricating oil labyrinth gland in a kind of plant equipment, particularly relates to a kind of sealing device based on double; two dissection types.
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, additionally, also have higher requirement the service life for sealing member.In the workplace that some operating mode is more severe, although current existing sealing device is capable of the function sealed, namely the oils and fats in annular seal space is stoped to leak, but but it is unable to reach and stops the dust in the external world, sewage, foreign material etc. to enter in sealing device, if things go on like this, cause that sealing device rotates not smooth, thus causing scrapping ahead of time.
Summary of the invention
This utility model provides a kind of double; two dissection 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, and its sealing property is very excellent, long perfomance life.
Realizing the technical scheme that this utility model above-mentioned purpose adopts is:
A kind of double; two dissection type sealing device, at least include stationary ring and set on the rotating shaft and the rotating ring rotated with the axis, described stationary ring is fixed on the inside of equipment end cap, described rotating ring and stationary ring are split type structure, by two semicircular ring compositions being broken away, rotating ring and stationary ring are provided with attachment bolt at its subdivision place, and fix as a whole by attachment bolt by the semicircular ring that two are broken away；
The left and right sides of described rotating ring respectively oil scraper ring and dust retaining ring, the cross section being protruding between oil scraper ring and dust retaining ring is the sealing ring gear A of comb teeth-shaped, described stationary ring by positioning step and and cross section be similarly the sealing ring gear B of comb teeth-shaped and form, described sealing ring gear B is enclosed within sealing ring gear A and between oil scraper ring and dust retaining ring, seal and be provided with gap between ring gear B and oil scraper ring and dust retaining ring, seal ring gear A and seal the interlaced reservoir being collectively forming a bending that interts of ring gear B, described sealing ring gear B is provided with a backflash bottom it, described backflash connects with annular seal space；Oils and fats in annular seal space is entered reservoir by the gap location sealed between ring gear B and oil scraper ring, and the oils and fats in reservoir, under the effect of gravity and centrifugal force, flows back to annular seal space through backflash；The described ring gear adjacent with dust retaining ring in ring gear B that seal is dust ring, the bottom of dust ring is provided with the seal groove of a ring-type, described seal groove is provided with dust ring, described dust ring contacts with sealing ring gear A, and common blocks dust enters reservoir from the gap location between dust retaining ring and dust ring.
The top of described dust ring is provided with the greasing hole of a radial direction, and the seal groove position being provided with dust ring is led in described greasing hole by the external world.
Being provided with seal groove on the inwall of described rotating ring, be provided with O-ring seals in described seal groove, described O-ring seals contacts with rotating axle, and is fixed on by rotating ring on rotation axle and can rotate with the axis.
Being provided with seal groove on the outer wall of described stationary ring, be provided with O-ring seals in described seal groove, described O-ring seals contacts with equipment end cap, and is fixed on by stationary ring on equipment end lid.
Provided by the utility model pair of dissection type sealing device has the advantage that sealing device provided by the utility model in use, oils and fats in annular seal space is entered reservoir by the gap location sealed between ring gear B and oil scraper ring, oils and fats in reservoir, under the effect of gravity and centrifugal force, flows back to annular seal space through backflash.And the bottom of dust ring is provided with the seal groove of a ring-type, being provided with dust ring in seal groove, described dust ring contacts with sealing ring gear A, and common blocks dust enters reservoir from the gap location between dust retaining ring and dust ring.
Accompanying drawing explanation
The structural representation of double; two dissection type sealing devices that Fig. 1 provides for this utility model；
Fig. 2 is that the A-A of Fig. 1 is to sectional view；
In figure: 1-rotating ring, 2-stationary ring, 3-attachment bolt, 4-oil scraper ring, 5-dust retaining ring, 6-seals ring gear A, 7-positioning step, and 8-seals ring gear B, 9-reservoir, 10-backflash, 11-dust ring, 12-dust ring, 13-greasing hole, 14-O shape sealing ring.
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 double; two dissection type sealing devices that this utility model provides is as depicted in figs. 1 and 2, including stationary ring 2 and set on the rotating shaft and the rotating ring 1 rotated with the axis, the inwall of described rotating ring 1 is provided with seal groove, described seal groove is provided with O-ring seals 14, described O-ring seals 14 contacts with rotating axle, and is fixed on by rotating ring on rotation axle and can rotate with the axis.
Described stationary ring 2 is fixed on the inside of equipment end cap, and the outer wall of described stationary ring 2 is provided with seal groove, is provided with O-ring seals 14 in described seal groove, and described O-ring seals 14 contacts with equipment end cap, and is fixed on by stationary ring on equipment end lid.
Described rotating ring 1 and stationary ring 2 are split type structure, and by two semicircular ring compositions being broken away, rotating ring and stationary ring are provided with attachment bolt 3 at its subdivision place, and fix as a whole by attachment bolt 3 by the semicircular ring that two are broken away.
The left and right sides of described rotating ring 1 respectively oil scraper ring 4 and dust retaining ring 5, the cross section being protruding between oil scraper ring 4 and dust retaining ring 5 is the sealing ring gear A6 of comb teeth-shaped, described stationary ring 2 by positioning step 7 and and cross section be similarly the sealing ring gear B8 of comb teeth-shaped and form, described sealing ring gear B8 is enclosed within sealing ring gear A6 and between oil scraper ring 4 and dust retaining ring 5, seal and be provided with gap between ring gear B8 and oil scraper ring 4 and dust retaining ring 5, seal ring gear A6 and seal the interlaced reservoir 9 being collectively forming a bending that interts of ring gear B8, described sealing ring gear B8 is provided with a backflash 10 bottom it, described backflash 10 connects with annular seal space；Oils and fats in annular seal space is entered reservoir 9 by the gap location sealed between ring gear B8 and oil scraper ring 4, and the oils and fats in reservoir 9, under the effect of gravity and centrifugal force, flows back to annular seal space through backflash 10.
The described ring gear adjacent with dust retaining ring 5 in ring gear B8 that seal is dust ring 11, the bottom of dust ring 11 is provided with the seal groove of a ring-type, described seal groove is provided with dust ring 12, described dust ring 12 contacts with sealing ring gear A6, and common blocks dust enters reservoir 9 from the gap location between dust retaining ring 5 and dust ring 11.The top of described dust ring is provided with the greasing hole 13 of a radial direction, and the seal groove position being provided with dust ring is led in described greasing hole 13 by the external world.
Claims (4)
1. a double; two dissection type sealing device, at least include stationary ring and set on the rotating shaft and the rotating ring rotated with the axis, described stationary ring is fixed on the inside of equipment end cap, it is characterized in that: described rotating ring and stationary ring are split type structure, by two semicircular ring compositions being broken away, rotating ring and stationary ring are provided with attachment bolt at its subdivision place, and fix as a whole by attachment bolt by the semicircular ring that two are broken away；
The left and right sides of described rotating ring respectively oil scraper ring and dust retaining ring, the cross section being protruding between oil scraper ring and dust retaining ring is the sealing ring gear A of comb teeth-shaped, described stationary ring by positioning step and and cross section be similarly the sealing ring gear B of comb teeth-shaped and form, described sealing ring gear B is enclosed within sealing ring gear A and between oil scraper ring and dust retaining ring, seal and be provided with gap between ring gear B and oil scraper ring and dust retaining ring, seal ring gear A and seal the interlaced reservoir being collectively forming a bending that interts of ring gear B, described sealing ring gear B is provided with a backflash bottom it, described backflash connects with annular seal space；Oils and fats in annular seal space is entered reservoir by the gap location sealed between ring gear B and oil scraper ring, and the oils and fats in reservoir, under the effect of gravity and centrifugal force, flows back to annular seal space through backflash；The described ring gear adjacent with dust retaining ring in ring gear B that seal is dust ring, the bottom of dust ring is provided with the seal groove of a ring-type, described seal groove is provided with dust ring, described dust ring contacts with sealing ring gear A, and common blocks dust enters reservoir from the gap location between dust retaining ring and dust ring.
2. according to claim 1 pair of dissection type sealing device, it is characterised in that: the top of described dust ring is provided with the greasing hole of a radial direction, and the seal groove position being provided with dust ring is led in described greasing hole by the external world.
3. according to claim 1 pair of dissection type sealing device, it is characterized in that: the inwall of described rotating ring is provided with seal groove, being provided with O-ring seals in described seal groove, described O-ring seals contacts with rotating axle, and is fixed on by rotating ring on rotation axle and can rotate with the axis.
4. according to claim 1 pair of dissection type sealing device, it is characterized in that: the outer wall of described stationary ring is provided with seal groove, being provided with O-ring seals in described seal groove, described O-ring seals contacts with equipment end cap, and is fixed on by stationary ring on equipment end lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770851.4U CN205371626U (en) | 2015-09-30 | 2015-09-30 | Two subdivision formula sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520770851.4U CN205371626U (en) | 2015-09-30 | 2015-09-30 | Two subdivision formula sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205371626U true CN205371626U (en) | 2016-07-06 |
Family
ID=56261244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520770851.4U Active CN205371626U (en) | 2015-09-30 | 2015-09-30 | Two subdivision formula sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205371626U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443510A (en) * | 2018-05-16 | 2018-08-24 | 徐拥军 | Rotary shaft sealing |
| CN108679230A (en) * | 2018-07-10 | 2018-10-19 | 无锡全世全流体科技有限公司 | A kind of Split mechanical seal peculiar to vessel |
| CN110645355A (en) * | 2019-08-26 | 2020-01-03 | 江门市鑫辉特种密封科技有限公司 | Flow guide type combined labyrinth sealing device |
-
2015
- 2015-09-30 CN CN201520770851.4U patent/CN205371626U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443510A (en) * | 2018-05-16 | 2018-08-24 | 徐拥军 | Rotary shaft sealing |
| CN108679230A (en) * | 2018-07-10 | 2018-10-19 | 无锡全世全流体科技有限公司 | A kind of Split mechanical seal peculiar to vessel |
| CN110645355A (en) * | 2019-08-26 | 2020-01-03 | 江门市鑫辉特种密封科技有限公司 | Flow guide type combined labyrinth sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205371626U (en) | Two subdivision formula sealing device | |
| CN110553037B (en) | Radial multi-lip labyrinth seal device for rotating shaft | |
| CN205383266U (en) | Dredge tooth sealing device | |
| CN204201100U (en) | A kind of assembly type revolution lip labyrinth gland | |
| CN104832653B (en) | Sealing device for high-speed rotating shaft | |
| CN110594414B (en) | Axial multi-lip labyrinth seal device for rotating shaft | |
| CN210890099U (en) | Axial multi-lip sealing device for rotating shaft | |
| CN204573052U (en) | The multiple labyrinth seal device of a kind of split type S type | |
| CN204921994U (en) | Sealing device is kept apart to combination formula based on dust lip | |
| CN113124168B (en) | Waterproof oil-separating sealing device | |
| CN205371639U (en) | Multistage lip van -type sealing device | |
| CN217355562U (en) | Built-in axial and radial sealing device | |
| CN210859819U (en) | Automatic grease discharging type wind generating set main shaft sealing device | |
| CN205559800U (en) | Labyrinth sealing device | |
| CN205155150U (en) | Independently sealing device is kept apart to grease discharging formula based on dust lip | |
| CN205013689U (en) | Modular two -way multiple sealing device | |
| CN212225993U (en) | Oil-proof and dust-proof sealing device | |
| CN205089981U (en) | Independently arrange two -way multiple sealing device of fat formula | |
| CN205559799U (en) | A labyrinth seals isolating device for in vertical axis | |
| CN214578857U (en) | Waterproof oil seal device | |
| CN205559740U (en) | Subdivision formula is grease discharging sealing device independently based on felt is sealed | |
| CN205350347U (en) | Isolating device is sealed to two -way mixed type | |
| CN204573043U (en) | A kind of combined type ring gear seal arrangement | |
| CN208619675U (en) | A kind of isolation water conservancy diversion sealing device | |
| CN110645355B (en) | Flow guide type combined labyrinth sealing device |
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: 20171121 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: 430000 Hubei Wuhan city East Lake Development Zone, Wuhan University Science Park pioneering Building 2 building Patentee before: WUHAN XINZHI SEAL TECHNOLOGY CO., LTD. |