CN206309430U - A kind of air starter turbine seal assembly - Google Patents
A kind of air starter turbine seal assembly Download PDFInfo
- Publication number
- CN206309430U CN206309430U CN201621273753.0U CN201621273753U CN206309430U CN 206309430 U CN206309430 U CN 206309430U CN 201621273753 U CN201621273753 U CN 201621273753U CN 206309430 U CN206309430 U CN 206309430U
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- China
- Prior art keywords
- seal assembly
- ring
- turbine
- starter
- spring
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- 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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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model patent is related to a kind of air starter turbine seal assembly, seal assembly is fixedly mounted on the rear end of turbine, sealing ring (4) is between stationary ring (3) and seal assembly housing (6), in the groove that spring (5) is placed on the inside of seal assembly housing (6), circlip (2) and rotating ring (1) position the Internal and external cycle of stationary ring (3) respectively；In the course of work, rotating ring (1) slip relative with stationary ring (3) rotated at a high speed with turbine, preset elastic force is produced by spring (5), makes to form oil lamella between rotating ring (1) and stationary ring (3), so as to realize rotary dynamic seal.The characteristics of seal assembly has good sealing effect, simple structure, reliability high, long lifespan, the access times of starter can significantly be lifted, development cost is reduced, with application value higher, while significant to improving starter system reliability, optimization starter performance.
Description
Technical field
The utility model is related to aviation auxiliary power field, more particularly to a kind of turbine rotor for aviation starter
Sealing.
Background technology
In engineering machinery and fluid machinery, widely, its sealing effectiveness will directly affect whole machine for mechanical seal application
Performance And Reliability a, it has also become important indicator of evaluation mechanical product quality.For the mechanical seal of high-speed rotary part,
How to design it is a kind of with good sealing effect, simple structure, reliability are high, long lifespan sealing structure should with very big engineering
With value.
The working environment and job specification of air starter determine the uniqueness and Seal Design of its turbine rotor structure
Necessity, hence it is imperative that a kind of reliable starter turbine seal assembly provides support for it.
The content of the invention
The object of the invention：There is provided a kind of efficient turbine seal assembly.
The technical scheme is that：A kind of air starter turbine seal assembly, including rotating ring 1, circlip 2,
Stationary ring 3, sealing ring 4, spring 5, seal assembly housing 6, it is characterised in that：After the seal assembly is fixedly mounted on turbine
End, sealing ring 4 is located between stationary ring 3 and seal assembly housing 6, and spring 5 is placed in the groove of the inner side of seal assembly housing 6, bullet
Property back-up ring 2 and rotating ring 1 position the Internal and external cycle of stationary ring 3 respectively；It is high with turbine (working speed is 73000r/min) in the course of work
The rotating ring 1 of speed rotation is relative with stationary ring 3 to be slided, and preset elastic force is produced by spring 5, makes to form oil film between rotating ring 1 and stationary ring 3
Layer, so as to realize rotary dynamic seal.The quantity of spring 5 is 9, is distributed in the groove in the circumference of seal assembly housing 6, is carried
It is the key that dynamic sealing is realized for rational preset elastic force.The pretightning force of each spring is 2N.The seal assembly housing (6) is risen
Support and the effect for positioning.
Beneficial effects of the present invention：The seal assembly has good sealing effect, simple structure, reliability high, long lifespan
Feature, can significantly lift the access times of starter, reduce development cost, with application value higher, while to improving
Starter system reliability, optimization starter performance are significant.
Brief description of the drawings
Fig. 1 is turbine seal component architecture schematic diagram of the present invention；
Fig. 2 is structural representation when turbine seal assembly of the present invention works；
Wherein, 1- rotating rings, 2- circlips, 3- stationary rings, 4- sealing rings, 5- springs, 6- seal assembly housings
Specific embodiment
To better illustrate the present invention, illustrate below in conjunction with the accompanying drawings.
Fig. 1~Fig. 2 is referred to, it is turbine seal component architecture schematic diagram of the present invention and structural implementation.It is a kind of close
Sealing assembly, including rotating ring 1, circlip 2, stationary ring 3, sealing ring 4, spring 5, seal assembly housing 6, the sealing ring 4 are located at
Between stationary ring 3 and seal assembly housing 6, spring 5 is placed in the groove of the inner side of seal assembly housing 6, circlip 2 and rotating ring 1
The Internal and external cycle of stationary ring 3 is positioned respectively.In the course of work, with turbine rotating speed be 73000r/min at a high speed rotation rotating ring 1 with
Stationary ring 3 is relative to be slided, and rational preset elastic force is provided by spring 5, makes to form oil lamella between dynamic and static ring, so as to realize rotation
Dynamic sealing.Static seal is realized by sealing ring 4.
Described starter turbine seal assembly, it is characterised in that：9 uniform springs 5 provide rational preset bullet
Power is the key that dynamic sealing is realized.The pretightning force of each spring is 2N.
Described starter turbine seal assembly, it is characterised in that：6 supports of the seal assembly housing and positioning
Effect.
The design of rotating ring will not only consider the size of fit structure, also have certain wanting in the selection and heat treatment of material
Ask.Because rotating ring and stationary ring relative motion constitute sealing, therefore sealing surface to rotating ring has flatness, roughness and wearability etc.
It is required that.
Stationary ring generally by the way of graphite annulus is combined with graphite annulus bearing, is carried out cementing.It is special in view of starter
Working environment, generally selects the glue for changing adaptability and good corrosion resistance to high/low temperature.
Spring provides preset elastic force for stationary ring and rotating ring.When elastic force is excessive, it is impossible to form oil film, make sound interannular unlubricated friction
Wipe, sealing surface localized hyperthermia's degree occurs, causes seal failure；Elastic force is too small cannot equally to form sealing oil film, cause sealing to be lost
Effect.Therefore rational preset elastic force is the key that the seal assembly is realized, the pretightning force of each spring is 2N in the seal assembly.
The characteristics of seal assembly has good sealing effect, simple structure, reliability high, long lifespan, can significantly be lifted
The access times of starter, reduce development cost, with application value higher, while to improve starter system reliability,
Optimization starter performance is significant.
Claims (2)
1. a kind of air starter turbine seal assembly, including rotating ring (1), circlip (2), stationary ring (3), sealing ring (4),
Spring (5), seal assembly housing (6), it is characterised in that：The seal assembly is fixedly mounted on the rear end of turbine, sealing ring (4)
Between stationary ring (3) and seal assembly housing (6), in the groove that spring (5) is placed on the inside of seal assembly housing (6), elasticity
Back-up ring (2) and rotating ring (1) position the Internal and external cycle of stationary ring (3) respectively；In the course of work, with turbine at a high speed rotation rotating ring (1) with
Stationary ring (3) is relative to be slided, and preset elastic force is produced by spring (5), makes to form oil lamella between rotating ring (1) and stationary ring (3), so that
Realize rotary dynamic seal.
2. starter according to claim 1 turbine seal assembly, it is characterised in that：The quantity of spring (5) is 9,
It is distributed in the groove in the circumference of seal assembly housing (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621273753.0U CN206309430U (en) | 2016-11-24 | 2016-11-24 | A kind of air starter turbine seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621273753.0U CN206309430U (en) | 2016-11-24 | 2016-11-24 | A kind of air starter turbine seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309430U true CN206309430U (en) | 2017-07-07 |
Family
ID=59245386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621273753.0U Active CN206309430U (en) | 2016-11-24 | 2016-11-24 | A kind of air starter turbine seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206309430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939722A (en) * | 2017-11-30 | 2018-04-20 | 北京航天动力研究所 | A kind of oxyhydrogen engine turbine pump is spring-loaded automatic disengaging dynamic sealing device |
| CN109162955A (en) * | 2018-08-28 | 2019-01-08 | 北京航天动力研究所 | Combine automatic disengaging dynamic sealing device in a kind of engine turbine pumps labyrinth |
-
2016
- 2016-11-24 CN CN201621273753.0U patent/CN206309430U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939722A (en) * | 2017-11-30 | 2018-04-20 | 北京航天动力研究所 | A kind of oxyhydrogen engine turbine pump is spring-loaded automatic disengaging dynamic sealing device |
| CN107939722B (en) * | 2017-11-30 | 2024-02-09 | 北京航天动力研究所 | Spring-loaded automatic release type dynamic sealing device for oxyhydrogen engine turbopump |
| CN109162955A (en) * | 2018-08-28 | 2019-01-08 | 北京航天动力研究所 | Combine automatic disengaging dynamic sealing device in a kind of engine turbine pumps labyrinth |
| CN109162955B (en) * | 2018-08-28 | 2021-03-26 | 北京航天动力研究所 | End surface labyrinth combined automatic disengaging type dynamic sealing device for engine turbo pump |
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