CN109707849A - A kind of oil retainer structure - Google Patents
A kind of oil retainer structure Download PDFInfo
- Publication number
- CN109707849A CN109707849A CN201910026261.3A CN201910026261A CN109707849A CN 109707849 A CN109707849 A CN 109707849A CN 201910026261 A CN201910026261 A CN 201910026261A CN 109707849 A CN109707849 A CN 109707849A
- Authority
- CN
- China
- Prior art keywords
- oil
- baffle
- rotor
- ring
- scraper ring
- 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.)
- Granted
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention discloses a kind of oil retainer structures, belong to steam turbine, technical field of gas turbine.Using a kind of oil retainer structure of the invention, including oil scraper ring, rotor, pre- baffle and mounting ring；The oil scraper ring and pre- baffle are ring structure, and rotor passes through the inner hole of oil scraper ring and pre- baffle；The pre- baffle is located on the inside of oil scraper ring, and pre- baffle is connected with oil scraper ring by mounting ring；Multiple oil sealing teeth are arranged in the oil scraper ring at rotor；The internal diameter of the pre- baffle is less than the diameter of oil sealing tooth, and the diameter of rotor is less than the diameter of rotor at oil sealing tooth at pre- baffle, and root diameter difference forms boss.A kind of oil retainer structure of the invention can be effectively prevented lubricating oil and reveal from bearing housing.
Description
Technical field
The present invention relates to a kind of oil retainer structures, belong to steam turbine, technical field of gas turbine.
Background technique
Steam turbine, gas turbine rotor by the bearing support and positioning in the bearing housing.During operation, each bearing is needed
Sufficient lubrication and cooling are wanted, therefore to be passed through a large amount of lubricating oil in each bearing housing.These lubricating oil are in bearing housing in flowing
With splashing state.Since rotor will be pierced by bearing housing, therefore needing that oil scraper ring is arranged between bearing housing and rotor prevents lubricating oil
Bearing housing is leaked out, in order to avoid cause the loss of fire and lubricating oil.
Oil scraper ring is generally provided with multiple oil sealing teeth close to the position of rotor in inner radius, stops outflow of lubrication oil axis step by step
Hold case.It is this if the oil mass in splash to oil scraper ring is very big but due to having gap between oil sealing tooth and rotor
Structure is still easy to happen leakage.
Summary of the invention
Goal of the invention of the invention is: in view of the above problems, providing a kind of oil retainer structure, the present invention can be with
It effectively prevent oil leakage to go out bearing housing.
The technical solution adopted by the invention is as follows:
A kind of oil retainer structure, including oil scraper ring, rotor, pre- baffle and mounting ring；
The oil scraper ring and pre- baffle are ring structure, and rotor passes through the inner hole of oil scraper ring and pre- baffle；
The pre- baffle is located on the inside of oil scraper ring, and pre- baffle is connected with oil scraper ring by mounting ring；
Multiple oil sealing teeth are arranged in the oil scraper ring at rotor；
The internal diameter of the pre- baffle is less than the internal diameter of oil sealing tooth, and the diameter of rotor is less than the straight of rotor at oil sealing tooth at pre- baffle
Diameter, root diameter difference form boss.
Preferably, the internal diameter of the pre- baffle is less than the diameter of rotor at oil sealing tooth, lubricating oil can be prevented straight in this way
It fetches at oil sealing tooth.
Preferably, there is thermal expansion distance between the pre- baffle and boss, ensure that rotor expanded by heating rear boss will not
It collides with pre- baffle.
Preferably, having gap between the pre- baffle and rotor, avoids pre- baffle from directly grinding with rotor and touch.
Preferably, having gap between the oil sealing tooth and rotor, avoids oil sealing tooth from directly grinding with rotor and touch.
Preferably, the oil scraper ring, pre- baffle and mounting ring are enclosed chamber.
Preferably, the oil scraper ring, pre- baffle and mounting ring fit closely three, have prevented by being welded to connect
In the chamber that oil leakage is surrounded into three.
Preferably, the oil scraper ring, pre- baffle and mounting ring are bolted, three is fitted closely, has been prevented
In the chamber that oil leakage is surrounded into three.
Preferably, the mounting ring bottom be equipped with oleophobic hole, a small amount of lubricating oil by the gap of pre- baffle and rotor come
To chamber, always bearing housing can be drained by oleophobic hole under in gravity, it will not be cumulative.
Preferably, being additionally provided with the oil trap of annular on the oil scraper ring side wall, the oil trap is located at oil scraper ring, pre- gear
In the chamber that plate and mounting ring are enclosed, it is in oil sealing tooth outer ring；The lubricating oil of closed chamber, splash to gear oil are leaked on a small quantity
On ring-side wall, oil trap will be flowed into along oil scraper ring side wall and flows to oil scraper ring lower part along this annular groove, passes through mounting ring
The oleophobic hole of bottom is discharged, and will not flow directly at oil sealing tooth.
A kind of oil retainer structure of the invention prevents the working principle of oil leakage as follows: the lubrication splashed in bearing housing
Oily most of mounted ring, pre- baffle, this parts of lubricating oil flow to bearing housing bottom along mounting ring, pre- baffle；In addition
Small part lubricating oil flows through to come from the gap location between pre- baffle and rotor, is stopped by boss, without flowing directly to oil sealing tooth
Position, this part are converged to by the lubricating oil that boss stops in the chamber that pre- baffle, oil baffle and mounting ring surround, and pass through installation
The oleophobic hole of ring bottom is discharged to bearing housing；In a small amount of lubricating oil splash to oil scraper ring side wall, collection will be flowed into along oil scraper ring side wall
Oil groove simultaneously flows to oil scraper ring lower part along this annular groove, is discharged by the oleophobic hole of mounting ring bottom, will not flow directly to oil
It seals at tooth.Sealing effect can be greatly improved, just because of this boss sealing principle, compared to the gap of oil sealing tooth and rotor,
The gap of pre- baffle and rotor can its sealing effect without significantly degrading larger, to reduce pre- baffle and rotor diameter
To the risk for touching mill.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, sealing effect is greatly improved, prevents oil leakage.
2, the gap of pre- baffle and rotor can its sealing effect without significantly degrading larger, to reduce pre- gear
Plate and rotor radial touch the risk of mill.
Detailed description of the invention
Examples of the present invention will be described by way of reference to the accompanying drawings, in which:
Fig. 1 is oil scraper ring overall structure.
Marked in the figure: 1- rotor, 2- oil scraper ring, the pre- baffle of 3-, 4- mounting ring, 5- oil sealing tooth, 6- oleophobic hole, 7- boss,
8- bearing housing, 9- cavity, 10- oil trap.
Specific embodiment
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
Any feature disclosed in this specification unless specifically stated can be equivalent or with similar purpose by other
Alternative features are replaced.That is, unless specifically stated, each feature is an example in a series of equivalent or similar characteristics
?.
Embodiment 1
A kind of oil retainer structure of the present embodiment, including oil scraper ring 2, rotor 1, pre- baffle 3 and mounting ring 4；
The oil scraper ring 2 is ring structure with pre- baffle 3, and rotor 1 passes through the inner hole of oil scraper ring 2 and pre- baffle 3；
The pre- baffle 3 is located at 2 inside of oil scraper ring, and pre- baffle 3 and oil scraper ring 2 are connected by mounting ring 4；
Multiple oil sealing teeth 5 are arranged in the oil scraper ring 2 at rotor 1；
The internal diameter of the pre- baffle 3 is less than the diameter of oil sealing tooth 5, and the diameter of rotor 1 is less than rotor 1 at oil sealing tooth 5 at pre- baffle 3
Diameter, 1 diameter difference of rotor formed boss 7.
Preferably, the internal diameter of the pre- baffle 3 is less than the diameter of rotor 1 at oil sealing tooth 5.
Preferably, having thermal expansion distance between the pre- baffle 3 and boss 7.
Preferably, having gap between the pre- baffle 3 and rotor 1.
Preferably, having gap between the oil sealing tooth 5 and rotor 1.
Preferably, the oil scraper ring 2, pre- baffle 3 and mounting ring 4 are enclosed chamber.
Preferably, the oil scraper ring 2, pre- baffle 3 and mounting ring 4 pass through welded connecting.
Preferably, 4 bottom of mounting ring is equipped with oleophobic hole 6.
Preferably, being additionally provided with the oil trap 10 of annular on 2 side wall of oil scraper ring, the oil trap 10 is located at oil scraper ring
2, pre- baffle 3 and mounting ring 4 are enclosed in chamber, are in 5 outer ring of oil sealing tooth.
Embodiment 2
A kind of oil retainer structure of the present embodiment, including oil scraper ring 2, rotor 1, pre- baffle 3 and mounting ring 4；
The oil scraper ring 2 is ring structure with pre- baffle 3, and rotor 1 passes through the inner hole of oil scraper ring 2 and pre- baffle 3；
The pre- baffle 3 is located at 2 inside of oil scraper ring, and pre- baffle 3 and oil scraper ring 2 are connected by mounting ring 4；
Multiple oil sealing teeth 5 are arranged in the oil scraper ring 2 at rotor 1；
The internal diameter of the pre- baffle 3 is less than the diameter of oil sealing tooth 5, and the diameter of rotor 1 is less than rotor 1 at oil sealing tooth 5 at pre- baffle 3
Diameter, 1 diameter difference of rotor formed boss 7.
Preferably, the internal diameter of the pre- baffle 3 is less than the diameter of rotor 1 at oil sealing tooth 5.
Preferably, having thermal expansion distance between the pre- baffle 3 and boss 7.
Preferably, having gap between the pre- baffle 3 and rotor 1.
Preferably, having gap between the oil sealing tooth 5 and rotor 1.
Preferably, the oil scraper ring 2, pre- baffle 3 and mounting ring 4 are enclosed chamber.
Preferably, the oil scraper ring 2, pre- baffle and mounting ring 4 are bolted.
Preferably, 4 bottom of mounting ring is equipped with oleophobic hole 6.
Preferably, being additionally provided with the oil trap 10 of annular on 2 side wall of oil scraper ring, the oil trap 10 is located at oil scraper ring
2, pre- baffle 3 and mounting ring 4 are enclosed in chamber, are in 5 outer ring of oil sealing tooth.
A kind of oil retainer structure of the invention prevents the working principle of oil leakage as follows: the lubrication splashed in bearing housing
Oily most of mounted ring, pre- baffle, this parts of lubricating oil flow to bearing housing bottom along mounting ring, pre- baffle；In addition
Small part lubricating oil flows through to come from the gap location between pre- baffle and rotor, is stopped by boss, without flowing directly to oil sealing tooth
Position, this part are converged to by the lubricating oil that boss stops in the chamber that pre- baffle, oil baffle and mounting ring surround, and pass through installation
The oleophobic hole of ring bottom is discharged to bearing housing；In a small amount of lubricating oil splash to oil scraper ring side wall, collection will be flowed into along oil scraper ring side wall
Oil groove simultaneously flows to oil scraper ring lower part along this annular groove, is discharged by the oleophobic hole of mounting ring bottom, will not flow directly to oil
It seals at tooth.Sealing effect can be greatly improved, just because of this boss sealing principle, compared to the gap of oil sealing tooth and rotor,
The gap of pre- baffle and rotor can its sealing effect without significantly degrading larger, to reduce pre- baffle and rotor diameter
To the risk for touching mill.
The invention is not limited to specific embodiments above-mentioned.The present invention, which expands to, any in the present specification to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (10)
1. a kind of oil retainer structure, it is characterised in that: including oil scraper ring (2), rotor (1), pre- baffle (3) and mounting ring (4)；
The oil scraper ring (2) and pre- baffle (3) are ring structure, and rotor (1) passes through the interior of oil scraper ring (2) and pre- baffle (3)
Hole；
The pre- baffle (3) is located on the inside of oil scraper ring (2), and pre- baffle (3) and oil scraper ring (2) are connected by mounting ring (4)；
The oil scraper ring (2) multiple oil sealing teeth (5) of setting at rotor (1)；
The internal diameter of the pre- baffle (3) is less than the diameter of oil sealing tooth (5), and the diameter of rotor (1) is less than oil sealing tooth at pre- baffle (3)
(5) diameter of rotor (1) at, rotor (1) diameter difference form boss (7).
2. oil retainer structure as described in claim 1, it is characterised in that: the internal diameter of the pre- baffle (3) is less than oil sealing tooth (5)
Locate the diameter of rotor (1).
3. oil retainer structure as described in claim 1, it is characterised in that: there is heat swollen between the pre- baffle (3) and boss (7)
Swollen distance.
4. oil retainer structure as described in claim 1, it is characterised in that: between having between the pre- baffle (3) and rotor (1)
Gap.
5. oil retainer structure as described in claim 1, it is characterised in that: between having between the oil sealing tooth (5) and rotor (1)
Gap.
6. oil retainer structure as described in claim 1, it is characterised in that: the oil scraper ring (2), pre- baffle (3) and mounting ring
(4) it is enclosed chamber.
7. oil retainer structure as described in claim 1, it is characterised in that: the oil scraper ring (2), pre- baffle (3) and mounting ring
(4) pass through welded connecting.
8. oil retainer structure as described in claim 1, it is characterised in that: the oil scraper ring (2), pre- baffle (3) and mounting ring
(4) it is bolted.
9. oil retainer structure as described in claim 1, it is characterised in that: mounting ring (4) bottom is equipped with oleophobic hole (6).
10. oil retainer structure as described in claim 1, it is characterised in that: be additionally provided with annular on oil scraper ring (2) side wall
Oil trap (10), the oil trap (10) are located in the chamber that oil scraper ring (2), pre- baffle (3) and mounting ring (4) are enclosed,
In oil sealing tooth (5) outer ring, it can prevent lubricating oil from flowing directly at oil sealing tooth (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026261.3A CN109707849B (en) | 2019-01-11 | 2019-01-11 | Oil scraper ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026261.3A CN109707849B (en) | 2019-01-11 | 2019-01-11 | Oil scraper ring structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109707849A true CN109707849A (en) | 2019-05-03 |
| CN109707849B CN109707849B (en) | 2020-12-22 |
Family
ID=66261267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910026261.3A Active CN109707849B (en) | 2019-01-11 | 2019-01-11 | Oil scraper ring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109707849B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566494A (en) * | 2019-09-23 | 2019-12-13 | 南岳电控（衡阳）工业技术股份有限公司 | Protection device for quenching furnace, nitriding furnace stirring fan oil leak |
| CN113629929A (en) * | 2021-07-31 | 2021-11-09 | 周张宁 | Double-cavity oil retainer structure |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216108A (en) * | 2007-12-29 | 2008-07-09 | 东方电气集团东方汽轮机有限公司 | Adjustable deflector and its regulation method |
| CN201145039Y (en) * | 2007-11-23 | 2008-11-05 | 哈尔滨市通盛电力技术开发有限公司 | Complete contact gas seal oil block |
| CN101392834A (en) * | 2007-09-19 | 2009-03-25 | 中国铝业股份有限公司 | Hermetic sealing steam baffle structure |
| CN202149222U (en) * | 2011-07-06 | 2012-02-22 | 上海丹迪电力技术有限公司 | Direct-blowing type airtight seal oil shield structure |
| CN104279329A (en) * | 2013-07-02 | 2015-01-14 | 苏州热工研究院有限公司 | Oil catch |
| CN207454771U (en) * | 2017-10-23 | 2018-06-05 | 湖北三峰透平装备股份有限公司 | A kind of import high negative pressure turbine composite seal device |
| US10119474B2 (en) * | 2013-03-15 | 2018-11-06 | United Technologies Corporation | Vibration damping apparatus for hydrostatic seal of gas turbine engine |
-
2019
- 2019-01-11 CN CN201910026261.3A patent/CN109707849B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392834A (en) * | 2007-09-19 | 2009-03-25 | 中国铝业股份有限公司 | Hermetic sealing steam baffle structure |
| CN201145039Y (en) * | 2007-11-23 | 2008-11-05 | 哈尔滨市通盛电力技术开发有限公司 | Complete contact gas seal oil block |
| CN101216108A (en) * | 2007-12-29 | 2008-07-09 | 东方电气集团东方汽轮机有限公司 | Adjustable deflector and its regulation method |
| CN202149222U (en) * | 2011-07-06 | 2012-02-22 | 上海丹迪电力技术有限公司 | Direct-blowing type airtight seal oil shield structure |
| US10119474B2 (en) * | 2013-03-15 | 2018-11-06 | United Technologies Corporation | Vibration damping apparatus for hydrostatic seal of gas turbine engine |
| CN104279329A (en) * | 2013-07-02 | 2015-01-14 | 苏州热工研究院有限公司 | Oil catch |
| CN207454771U (en) * | 2017-10-23 | 2018-06-05 | 湖北三峰透平装备股份有限公司 | A kind of import high negative pressure turbine composite seal device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110566494A (en) * | 2019-09-23 | 2019-12-13 | 南岳电控（衡阳）工业技术股份有限公司 | Protection device for quenching furnace, nitriding furnace stirring fan oil leak |
| CN113629929A (en) * | 2021-07-31 | 2021-11-09 | 周张宁 | Double-cavity oil retainer structure |
| CN113629929B (en) * | 2021-07-31 | 2022-11-11 | 智伟电力(无锡)有限公司 | Double-cavity oil retainer structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109707849B (en) | 2020-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5259768B2 (en) | Shaft seal | |
| EP2103780B1 (en) | Cold air buffer supply tube | |
| RU2621854C2 (en) | Gas-turbine engine drive shaft device, gas-turbine engine and aircraft | |
| CN109707849A (en) | A kind of oil retainer structure | |
| RU2132474C1 (en) | Bearing support ring unit (design versions) | |
| CA2701313A1 (en) | Oil line insulation system for mid turbine frame | |
| JP6254610B2 (en) | Connection of shunt and bearing support | |
| US9488061B2 (en) | Compressor seal assembly for a turbocharger | |
| RU2666828C2 (en) | Heat-shield manifold system for midframe case of gas turbine engine | |
| CN102418566B (en) | Steam turbine | |
| US6921079B2 (en) | Hydraulic seal arrangement | |
| EP3617456B1 (en) | Oil supply assembly for gas turbine engine | |
| JP2012082831A (en) | Steam turbine nozzle assembly having flush aperture | |
| US9932898B2 (en) | Drain pipe arrangement and gas turbine engine comprising a drain pipe arrangement | |
| JP6906386B2 (en) | Planetary gear device with bearing oil drain | |
| US9683458B2 (en) | Oil scupper system for bearing housing of gas turbine engine | |
| JP2014152634A (en) | Supercharger | |
| JP5958058B2 (en) | Oil seal structure and turbocharger | |
| GB2039632A (en) | Turbocharger | |
| CN215980819U (en) | Self-temperature-adjusting air curtain oil seal | |
| CN106763525B (en) | High-bearing gear box | |
| US12025018B2 (en) | Turbine arrangement incorporating an oil recovery circumferential trough | |
| CN213839555U (en) | Oil baffle structure | |
| CN209818120U (en) | Steam turbine bearing box oil retainer ring with oil baffle | |
| RU2692511C1 (en) | Gas turbine engine support assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |