CN2451736Y - Pressure reducing elastic sealing ring - Google Patents
Pressure reducing elastic sealing ring Download PDFInfo
- Publication number
- CN2451736Y CN2451736Y CN 00253381 CN00253381U CN2451736Y CN 2451736 Y CN2451736 Y CN 2451736Y CN 00253381 CN00253381 CN 00253381 CN 00253381 U CN00253381 U CN 00253381U CN 2451736 Y CN2451736 Y CN 2451736Y
- Authority
- CN
- China
- Prior art keywords
- sealing ring
- pressure reducing
- ring
- utility
- seat
- 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 - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model relates to a pressure reducing elastic sealing ring. The utility model is characterized in that a nonmetallic elastic composite-material sealing ring is installed in a primary sealing ring seat in a floating mode, and a pressure reducing sealing ring is fixed to one side surface of a main sealing ring; an internal annular groove is arranged in the inner seat of the pressure reducing sealing ring, and the nonmetallic elastic composite-material sealing ring is matched and arranged in the groove; an oil returning cavity is arranged between the pressure reducing sealing ring and the main sealing ring, and the lower part of the inner seat of the pressure reducing sealing ring is provided with a plurality of oil returning holes. The utility model better ensures the sealing performance of the sealing ring; because the pressure reducing ring is installed, the oil pressure is reduced, and the great mass of lubricating oil is blocked and prevented from overflowing from a bearing box, thereby, the floating sealing ring is sealed in a low pressure state, and the effects of pressure reduction and sealing are performed.
Description
The utility model relates to a kind of seal ring, particularly a kind of decompression type elastic sealing ring.
Existing turbine bearing pad two ends elasticity of demand seal ring seals, and prior art is a single-stage seal ring as shown in Figure 1, leaks easily when pressure is big.
The purpose of this utility model provides the decompression type elastic sealing ring that a kind of good sealing effect has the reduced pressure sealing function.
The purpose of this utility model realizes by following structure: a kind of decompression type elastic sealing ring, float in the primary seal ring seat nonmetal elastic composite seal ring is installed, a reduced pressure sealing ring is being fixed in the main seal ring side, have an outer annular recess in the seat in the reduced pressure sealing ring, be equipped with nonmetal elastic composite seal ring in the groove, have an oil back chamber between reduced pressure sealing ring and the main seal ring, the seat bottom has a plurality of spill ports in the reduced pressure sealing ring.
Therefore the utility model has guaranteed the sealability of seal ring preferably owing to have a twin-stage reduced pressure sealing ring, in the bearing housing to outside the lubricant oil that overflows can reclaim again by the spill port of reduced pressure sealing ring.Former seal ring has the floating seal effect, but not high pressure resistant, and the utility model is owing to installed pressure-reducing ring, reduced oil pressure, stopped in the bearing housing to outside overflow the major part of lubricant oil, thereby make fluctuate hermetical ring at the low-pressure state lower seal, play the step-down sealing effect.
Fig. 1 is existing elastic packing ring structure sectional view
Fig. 2 is the utility model structure sectional view
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment:
The utility model as shown in Figure 2 is a kind of decompression type elastic sealing ring, float in the primary seal ring seat 1 nonmetal elastic composite seal ring 2 is installed, a reduced pressure sealing ring is being fixed in main seal ring 1 side, have an outer annular recess 4 in the seat 3 in the reduced pressure sealing ring, be equipped with nonmetal elastic composite seal ring 5 in the groove 4, have an oil back chamber 6 between reduced pressure sealing ring and the main seal ring, seat 3 bottoms have a spill port 7 in the reduced pressure sealing ring.
Claims (1)
1, a kind of decompression type elastic sealing ring, float in the seal ring seat (1) nonmetal elastic composite seal ring (2) is installed, it is characterized in that: a reduced pressure sealing ring is being fixed in seal ring (1) side, have an outer annular recess (4) in the reduced pressure sealing ring seat (3), the equipped nonmetal elastic composite seal ring (5) of fixing in the groove (4), have an oil back chamber (6) between reduced pressure sealing ring and the main seal ring, seat (3) bottom has a plurality of spill ports (7) in the reduced pressure sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253381 CN2451736Y (en) | 2000-12-07 | 2000-12-07 | Pressure reducing elastic sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00253381 CN2451736Y (en) | 2000-12-07 | 2000-12-07 | Pressure reducing elastic sealing ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2451736Y true CN2451736Y (en) | 2001-10-03 |
Family
ID=33610844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00253381 Expired - Fee Related CN2451736Y (en) | 2000-12-07 | 2000-12-07 | Pressure reducing elastic sealing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2451736Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383420C (en) * | 2004-05-28 | 2008-04-23 | 大和缝纫机制造株式会社 | Sealing structure |
| CN103899570A (en) * | 2012-12-27 | 2014-07-02 | 南通大通宝富风机有限公司 | Floating oil seal |
-
2000
- 2000-12-07 CN CN 00253381 patent/CN2451736Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100383420C (en) * | 2004-05-28 | 2008-04-23 | 大和缝纫机制造株式会社 | Sealing structure |
| CN103899570A (en) * | 2012-12-27 | 2014-07-02 | 南通大通宝富风机有限公司 | Floating oil seal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |