CN201953484U - Device for avoiding lubricating oil leaking through adopting labyrinth sealing structure - Google Patents
Device for avoiding lubricating oil leaking through adopting labyrinth sealing structure Download PDFInfo
- Publication number
- CN201953484U CN201953484U CN 201020674733 CN201020674733U CN201953484U CN 201953484 U CN201953484 U CN 201953484U CN 201020674733 CN201020674733 CN 201020674733 CN 201020674733 U CN201020674733 U CN 201020674733U CN 201953484 U CN201953484 U CN 201953484U
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- CN
- China
- Prior art keywords
- lubricating oil
- coating
- honeycomb
- obturaging
- avoiding
- 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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- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
A device for avoiding lubricating oil leaking through adopting a labyrinth sealing structure is characterized in that the device comprises a sealing ring, a honeycomb, a coating, labyrinths, a rotor and a small oil leaking hole, wherein the honeycomb is mounted at the front part of the inner wall of the sealing ring, the coating is coated at the rear part of the inner wall of the sealing ring, the labyrinths are mounted at the periphery of the rotor and corresponding to the honeycomb and the coating in position; and the small oil leaking hole is formed on the sealing ring in the position between the honeycomb and the coating. The device has the advantages as follows: the local structure of the labyrinth sealing ring for sealing bearings among reversing shafts is adjusted to realize the recovery of leaked lubricating oil, so that the lubricating oil is prevented from leaking in a high-temperature turbine rotor cavity, the problem of oil leakage is solved, and the safety and reliability of an engine are improved.
Description
Technical field
The utility model relates to the device that prevents that lubricating oil from leaking, particularly a kind of device of avoiding labyrinth gas seals structure lubricating oil to leak.
Background technique
Existing gas turbine bearing bore is obturaged and is adopted labyrinth gas seals usually, especially is applied to adopt on the between centers bearing of higher rotation speed obturages.
For improving the gas circuit effect of obturaging, often the side at the ring of obturaging adopts coating, and a side is used cellular structure, and the shape of honeycomb, size and the effect of obturaging have close ties.When motor carries out the transition to low state from high state moment, the atmospheric pressure transition owing to obturage, and response lag is pressed in the bearing bore chamber, and the chamber, chamber that causes obturaging presses the pressure reduction of pressing with the bearing bore chamber for negative, thereby the lubricating oil in the bearing bore can be along the clearance leakage of coating and comb tooth to obturaging the chamber, leak to honeycomb as lubricating oil, cause that the effect of obturaging worsens, honeycomb itself is very near apart from turbine rotor, under the high temperature action, to cause the lubricating oil coking in the honeycomb, thoroughly destroy cellular structure.
The model utility content
The purpose of this utility model is in order to solve the problem that lubricating oil leaks, and the spy provides a kind of device of avoiding labyrinth gas seals structure lubricating oil to leak.
The utility model provides a kind of device of avoiding labyrinth gas seals structure lubricating oil to leak, it is characterized in that: the described device of labyrinth gas seals structure lubricating oil leakage of avoiding comprises the ring 1 of obturaging, honeycomb 2, coating 3, comb tooth 4, rotor 5, draining aperture 6;
Wherein: honeycomb 2 is installed in the ring 1 inwall front portion of obturaging, coating 3 is coated in the ring 1 inwall rear portion of obturaging, comb tooth 4 is installed in the circumference of rotor 5, corresponding honeycomb 2 in the position of comb tooth 4 and coating 3 parts, and draining aperture 6 is positioned on the ring 1 of obturaging and is positioned at honeycomb 2 and coating 3 position intermediate.
Described draining aperture 6 diameters are 1 to 2 millimeter.
The radial height of described honeycomb 2 and coating 3 differs 5 millimeters.
Its working principle is: when motor during from the high state transition to low state, the lubricating oil in the bearing bore under centrifugal action, flows back to bearing bore through draining hole 6 along the clearance leakage between seal coating 3 and the comb tooth 4.
Advantage of the present utility model:
The device of avoiding labyrinth gas seals structure lubricating oil to leak described in the utility model, the labyrinth gas seals ring that bearing sealing between reversing shaft is adopted carries out the partial structurtes adjustment, realize the recovery of draining off leak oil, in order to avoid lubricating oil leaks in the turbine rotor chamber of high temperature, both solve the leakage of oil problem, improved the Security and the reliability of motor again.
Description of drawings
Below in conjunction with drawings and the embodiments the utility model is described in further detail:
Fig. 1 is a partial schematic diagram of avoiding the apparatus structure of labyrinth gas seals structure lubricating oil leakage.
Embodiment
Embodiment 1
Present embodiment provides a kind of device of avoiding labyrinth gas seals structure lubricating oil to leak, it is characterized in that: the described device of labyrinth gas seals structure lubricating oil leakage of avoiding comprises the ring 1 of obturaging, honeycomb 2, coating 3, comb tooth 4, rotor 5, draining aperture 6;
Wherein: honeycomb 2 is installed in the ring 1 inwall front portion of obturaging, coating 3 is coated in the ring 1 inwall rear portion of obturaging, comb tooth 4 is installed in the circumference of rotor 5, corresponding honeycomb 2 in the position of comb tooth 4 and coating 3 parts, and draining aperture 6 is positioned on the ring 1 of obturaging and is positioned at honeycomb 2 and coating 3 position intermediate.
Described draining aperture 6 diameters are 1.5 millimeters.
The radial height of described honeycomb 2 and coating 3 differs 5 millimeters.
Its working principle is: when motor during from the high state transition to low state, the lubricating oil in the bearing bore under centrifugal action, flows back to bearing bore through draining hole 6 along the clearance leakage between seal coating 3 and the comb tooth 4.
Embodiment 2
Present embodiment provides a kind of device of avoiding labyrinth gas seals structure lubricating oil to leak, it is characterized in that: the described device of labyrinth gas seals structure lubricating oil leakage of avoiding comprises the ring 1 of obturaging, honeycomb 2, coating 3, comb tooth 4, rotor 5, draining aperture 6;
Wherein: honeycomb 2 is installed in the ring 1 inwall front portion of obturaging, coating 3 is coated in the ring 1 inwall rear portion of obturaging, comb tooth 4 is installed in the circumference of rotor 5, corresponding honeycomb 2 in the position of comb tooth 4 and coating 3 parts, and draining aperture 6 is positioned on the ring 1 of obturaging and is positioned at honeycomb 2 and coating 3 position intermediate.
Described draining aperture 6 diameters are 2 millimeters.
The radial height of described honeycomb 2 and coating 3 differs 5 millimeters.
Its working principle is: when motor during from the high state transition to low state, the lubricating oil in the bearing bore under centrifugal action, flows back to bearing bore through draining hole 6 along the clearance leakage between seal coating 3 and the comb tooth 4.
Claims (3)
1. device of avoiding labyrinth gas seals structure lubricating oil to leak is characterized in that: describedly avoid the device that labyrinth gas seals structure lubricating oil leaks to comprise the ring (1) of obturaging, honeycomb (2), coating (3), comb tooth (4), rotor (5), draining aperture (6);
Wherein: honeycomb (2) is installed in ring (1) the inwall front portion of obturaging, coating (3) is coated in ring (1) the inwall rear portion of obturaging, comb tooth (4) is installed in the circumference of rotor (5), corresponding honeycomb (2) in the position of comb tooth (4) and coating (3) part, draining aperture (6) is positioned at and is positioned at honeycomb (2) and coating (3) position intermediate on the ring (1) of obturaging.
2. according to the described device of avoiding labyrinth gas seals structure lubricating oil to leak of claim 1, it is characterized in that: described draining aperture (6) diameter is 1 to 2 millimeter.
3. according to the described device of avoiding labyrinth gas seals structure lubricating oil to leak of claim 1, it is characterized in that: the radial height of described honeycomb (2) and coating (3) differs 5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020674733 CN201953484U (en) | 2010-12-23 | 2010-12-23 | Device for avoiding lubricating oil leaking through adopting labyrinth sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020674733 CN201953484U (en) | 2010-12-23 | 2010-12-23 | Device for avoiding lubricating oil leaking through adopting labyrinth sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953484U true CN201953484U (en) | 2011-08-31 |
Family
ID=44497600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020674733 Expired - Fee Related CN201953484U (en) | 2010-12-23 | 2010-12-23 | Device for avoiding lubricating oil leaking through adopting labyrinth sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953484U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889387A (en) * | 2012-10-24 | 2013-01-23 | 哈尔滨东安发动机（集团）有限公司 | Graphite oil seal device |
| CN102889133A (en) * | 2012-10-24 | 2013-01-23 | 哈尔滨东安发动机（集团）有限公司 | Gas-leading sealing structure of gas turbine |
| CN105392968A (en) * | 2013-07-16 | 2016-03-09 | 斯奈克玛 | Device for protecting against oil leaks towards the rotors of a turbomachine turbine |
| CN107121289A (en) * | 2017-04-21 | 2017-09-01 | 中国航发沈阳发动机研究所 | A kind of bearing bore of aero-engine high supercharging pressure level Fan Rig obturages system |
| CN109555786A (en) * | 2018-12-17 | 2019-04-02 | 中国航发沈阳发动机研究所 | A kind of receipts oil ring anti-rotation location structure |
| CN111927632A (en) * | 2020-08-11 | 2020-11-13 | 中国航发湖南动力机械研究所 | Lubricating oil sealing structure and aircraft engine |
-
2010
- 2010-12-23 CN CN 201020674733 patent/CN201953484U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889387A (en) * | 2012-10-24 | 2013-01-23 | 哈尔滨东安发动机（集团）有限公司 | Graphite oil seal device |
| CN102889133A (en) * | 2012-10-24 | 2013-01-23 | 哈尔滨东安发动机（集团）有限公司 | Gas-leading sealing structure of gas turbine |
| CN105392968A (en) * | 2013-07-16 | 2016-03-09 | 斯奈克玛 | Device for protecting against oil leaks towards the rotors of a turbomachine turbine |
| CN105392968B (en) * | 2013-07-16 | 2018-04-10 | 斯奈克玛 | For the device for the rotor oil leak for preventing the turbine to turbine |
| CN107121289A (en) * | 2017-04-21 | 2017-09-01 | 中国航发沈阳发动机研究所 | A kind of bearing bore of aero-engine high supercharging pressure level Fan Rig obturages system |
| CN109555786A (en) * | 2018-12-17 | 2019-04-02 | 中国航发沈阳发动机研究所 | A kind of receipts oil ring anti-rotation location structure |
| CN109555786B (en) * | 2018-12-17 | 2020-07-07 | 中国航发沈阳发动机研究所 | Anti-rotation positioning structure of oil receiving ring |
| CN111927632A (en) * | 2020-08-11 | 2020-11-13 | 中国航发湖南动力机械研究所 | Lubricating oil sealing structure and aircraft engine |
| CN111927632B (en) * | 2020-08-11 | 2022-05-31 | 中国航发湖南动力机械研究所 | Lubricating oil sealing structure and aircraft engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20141223 |
|
| EXPY | Termination of patent right or utility model |