CN201306448Y - A segmented flexible seal body - Google Patents
A segmented flexible seal body Download PDFInfo
- Publication number
- CN201306448Y CN201306448Y CNU2008202115692U CN200820211569U CN201306448Y CN 201306448 Y CN201306448 Y CN 201306448Y CN U2008202115692 U CNU2008202115692 U CN U2008202115692U CN 200820211569 U CN200820211569 U CN 200820211569U CN 201306448 Y CN201306448 Y CN 201306448Y
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- CN
- China
- Prior art keywords
- camber
- felt
- layer
- flexible sealing
- screw
- 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.)
- Expired - Lifetime
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- Gasket Seals (AREA)
Abstract
The utility model discloses a segmented flexible seal body; the key points of the technical proposal include that a sliding panel is clamped between an upper and lower layers of arc-shaped felts so as to fix the upper and lower layers of arc-shaped felts together in staggered arrangement; two copper limit holes are symmetrically embedded on the upper layer arc-shaped felt in parallel; then two layers of arc-shaped felts and a pre-tightening screw are fixed on an arc-shaped framework through a screw hole on a fixed key.
Description
Technical field:
The utility model relates to a kind of seal that is used for mechanical component turbine oil field of sealing technology.
Background technique:
The phenomenon that all exists lubricated turbine oil to leak outside contaminated equipment and cause turbine oil to waste between big machinery rotatable parts and the stationary part cover.At leakage of oil problem in gap between rotatable parts and the stationary part cover, existing two kinds of schemes are solved, but all have certain technical problem.A kind of is to adopt with machine felt shutoff dynamic and static gaps, and to reach the purpose of sealing oil, this shutoff scheme has formed new gap because felt is worn and can not compensates at rotatable parts and felt internal surface when shutoff for a long time, cause turbine oil to leak outside again; Another kind is mechanical hard packing sealing, the split body that promptly engineering plastics or material with self-enrichment matter is divided into long arcs such as some, constitute an annulus, use the spring pretension at the back, the split body internal diameter is contacted with rotatable parts surface servo-actuated, after the split body internal surface is worn, the whole ring that is made of split body carries out undergauge and compensates, thereby reach seal action, if but this scheme exists initial tension of spring excessive, just cause the split body rapid wear, cause by the dust pollution equipment under grinding, if initial tension of spring is too small, sealing does not live turbine oil again, also there is the problem of the gap leakage of oil of self in this technological scheme simultaneously, has gap value and lap-joint's leakage of oil problem of leakage of oil as distinguish seal and seat ring guide groove.
The model utility content:
The purpose of this utility model is exactly the technological scheme of a kind of seal of flexible sealing energy servo-actuated compensate for wear amount of deformation and no dust pollution equipment, that is: two parallel symmetries of copper spacing hole are embedded on the camber felt of upper strata, camber sliding surface plate holder is exposed at the middle also end of up and down two-layer felt, two-layer up and down felt is that symmetrical arranged in dislocation is fixed, again retainingf key being run through symmetry inserts in the middle fixedly keyhole of two-layer camber felt, with two-layer camber felt and camber sliding surface plate fixedly being put together on together closing screw, with screw preloading spring and camber skeleton are fixed on camber felt back by the screw on the retainingf key, be stained with the elastic sealing strip of making by highdensity oil resistant sponge at distinguish flexible sealing body one end face, a plurality of distinguish flexible sealing bodies are overlapped flexible sealing ring of formation from beginning to end, again this flexible sealing ring is positioned in the seat ring guide groove, and with attachment screw by copper spacing hole with each distinguish flexible sealing body and seat ring guide groove with on being dynamically connected.
The camber skeleton of steel makes the camber felt of being made by felt keep shape invariance all the time, make its internal diameter and rotatable parts surface gap-free sealed, there is not the gap between camber felt upper and lower surface and the seat ring guide groove simultaneously yet, avoids camber felt and seat ring guide groove gap value to occur and leakage of oil.The sliding surface plate is arranged in the middle of two-layer camber felt, and the effect one makes camber felt lap-joint surface friction drag little exactly, and servo-actuated and undergauge compensation performance are good; It two is exactly a radial strength of strengthening the camber felt.
For copper spacing hole has also been adopted in the servo-actuated that improves the distinguish flexible sealing body, thereby improve the servo-actuated of each distinguish flexible sealing body and rotatable parts widely, improved the sealing technique effect.
The technical solutions of the utility model structure has reached the purpose that other technological scheme can't realize fully, and this programme is succinct, ingenious, practical, and industrial production is strong, can be widely used in fields such as electric power, petrochemical industry.
Description of drawings:
Fig. 1. distinguish flexible sealing body plan view
Fig. 2. distinguish flexible sealing body A-A view
Fig. 3. distinguish flexible sealing body B-B view
Wherein:
1, seat ring guide groove 2, preloading spring 3, screw
4, retainingf key 5, copper spacing hole 6, closing screw
7, camber felt 8, camber skeleton 9, fixing keyhole
10, elastic sealing strip 11, sliding surface plate 12, attachment screw
Embodiment:
At first the parallel symmetry of copper spacing hole (5) is embedded in the upper strata camber felt (7), sliding surface plate (11) is clipped in two-layer camber felt (7) centre up and down, and align with following camber felt (7) one ends, after the dislocation of two-layer up and down camber felt (7) two ends is placed, retainingf key (4) is put into fixedly keyhole (9), two-layer camber felt (7) is being incorporated into together about closing screw (6) general with handle again, camber skeleton (8) is leaned against double-deck camber felt (7) back, go up screw with preloading spring (2) with screw (3) by retainingf key (4), camber skeleton (8) and camber felt (7) are fixed together, again elastic sealing strip (10) is bonded at two-layer camber felt (7) one ends up and down, the distinguish flexible sealing body is implemented to finish.
Claims (1)
1 one kinds of distinguish flexible sealing bodies, be positioned over seat ring guide groove inside, and connect with the attachment screw servo-actuated, it is characterized in that: two parallel symmetries of copper spacing hole are embedded on the camber felt of upper strata, camber sliding surface plate holder in the middle of two-layer camber felt up and down, and one hold level with both hands together and expose, two-layer up and down felt is that symmetrical arranged in dislocation is fixed, again retainingf key being run through symmetry inserts in the middle fixedly keyhole of two-layer camber felt, with two-layer camber felt and camber sliding surface plate fixedly being put together on together closing screw, with screw preloading spring and camber skeleton are fixed on camber felt back by the screw on the retainingf key, be stained with the elastic sealing strip of making by highdensity oil resistant sponge at two-layer distinguish flexible sealing body one end face up and down, a plurality of distinguish flexible sealing bodies are overlapped from beginning to end constitute a flexible sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202115692U CN201306448Y (en) | 2008-11-28 | 2008-11-28 | A segmented flexible seal body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202115692U CN201306448Y (en) | 2008-11-28 | 2008-11-28 | A segmented flexible seal body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306448Y true CN201306448Y (en) | 2009-09-09 |
Family
ID=41098913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202115692U Expired - Lifetime CN201306448Y (en) | 2008-11-28 | 2008-11-28 | A segmented flexible seal body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306448Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112080304A (en) * | 2020-10-08 | 2020-12-15 | 杨松 | Special sealing friction pair for waste tire pyrolysis reaction furnace |
-
2008
- 2008-11-28 CN CNU2008202115692U patent/CN201306448Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112080304A (en) * | 2020-10-08 | 2020-12-15 | 杨松 | Special sealing friction pair for waste tire pyrolysis reaction furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090909 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Liming Document name: Notification of Expiration of Patent Right Duration |