CN109668717A - A kind of double-layer oil film double base squeeze film damper - Google Patents
A kind of double-layer oil film double base squeeze film damper Download PDFInfo
- Publication number
- CN109668717A CN109668717A CN201811541611.1A CN201811541611A CN109668717A CN 109668717 A CN109668717 A CN 109668717A CN 201811541611 A CN201811541611 A CN 201811541611A CN 109668717 A CN109668717 A CN 109668717A
- Authority
- CN
- China
- Prior art keywords
- ring
- double
- ring body
- oil film
- layer oil
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/1203—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon characterised by manufacturing, e.g. assembling or testing procedures for the damper units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/164—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material characterised by manufacturing, e.g. assembling or testing procedures
Abstract
The invention discloses a kind of double-layer oil film double base squeeze film dampers, including support cap, floating ring, mouse cage, oil sealing piston ring；The floating ring includes cylindrical ring body, the cradle portion extended outward from ring body one end, the return portion for returning to from the top of cradle portion extension backward, which is similarly cylindrical, and the return portion forms the elastic construction with respect to ring body by cradle portion.The floating ring has Zigzag type bullet branch structure, is mounted on oil film outer ring.Oil sealing piston ring has 3, wherein installing the one piston ring oil sealing in outlying end, installation side proximal end oil film is divided into two layers by floating ring, and ectonexine oil film respectively uses a piston ring to separate.Ring body, cradle portion, return portion form Zigzag type elastic bearing in the present invention, the damping property of squeeze film damper can be enhanced, effectively avoid the problem that conventional extruded film damper oil film inner and outer ring touches mill failure, be conducive to verify and correct simulation model, provide test data for its engineer application and support.
Description
Technical field
The invention patent relates to aero-engine damping means squeeze film dampers.
Background technique
Squeeze film damper is widely used in the rotor part of aero-engine, for the vibration damping of rotor part,
With the development of aircraft industry, the structure of aero-engine is gradually complicated, and the vibration problem of rotor part also increasingly protrudes, and passes
System squeeze film damper is difficult to meet vibration damping demand, and conventional extruded film damper is easy failure in practical applications, inside and outside
Ring, which is also easy to produce, touches mill phenomenon.
Therefore the technical solution for needing one kind new is to solve the above problems.
Summary of the invention
Present invention aim to address internal layer oil film pressures in previous floating ring formula squeeze film damper experimental study to be difficult to
The problem of measurement provides test support for the correctness of the simulation model of verifying foundation, improves the safety of test.
In order to achieve the above objectives, the present invention adopts the following technical scheme that:
A kind of double-layer oil film double base squeeze film damper, including cylindrical support cap, be located in support cap and with
The floating ring of support cap coaxial arrangement, the mouse cage in floating ring and with floating ring coaxial arrangement；
The floating ring includes cylindrical ring body, the cradle portion extended outward from ring body one end, from the top of cradle portion
End returns to the return portion of extension backward, which is similarly cylindrical, and the return portion forms opposite ring body by cradle portion
Elastic construction；The installation side that the end of the return portion upwardly extends, the installation side are fixed on the end face of support cap；It is described
Ring body is equipped with proximal outer oil sealing piston ring between support cap and mouse cage between ring body and support cap, ring body and mouse cage it
Between be equipped with proximal end internal layer oil sealing piston ring, ring body with respect to cradle portion the other end against there is distal end oil sealing piston ring.
Further, it is sealed in the space that ring body, Supporting cover, distal end oil sealing piston ring, proximal outer oil sealing piston ring surround
Outer layer oil film.
Further, in being sealed in the space that ring body, mouse cage, distal end oil sealing piston ring, proximal end internal layer oil sealing piston ring surround
Layer oil film.
Further, the installation side of the floating ring is bolted on support cap front end.
Further, mouse cage and support cap are mounted on the two sides of bushing.
The utility model has the advantages that
(1) ring body of the invention, cradle portion, return portion form Zigzag type elastic bearing, can enhance squeeze film damping
The damping property of device effectively avoids the problem that conventional extruded film damper oil film inner and outer ring touches mill failure；
(2) using the present invention can experimental study floating ring band bullet branch double-layer oil film double base squeeze film damper vibration damping
Characteristic, verifying and amendment simulation model, provide test data for its engineer application and support；
(3) the invention enables floating rings to have certain rigidity, and whirling motion, which is floated, to be reduced, and can improve ectonexine film distribution
Situation；The installation side in return portion is directly fixed with support cap and limits the rotation of floating ring simultaneously, simplifies floating to limit
Rotating ring is designed from newly-increased pin, boss etc. is transferred；
(4) mouse cage as an elastic bearing, floating ring ring body, cradle portion, return portion forms another in the present invention
Elastic bearing, so that the space of the adjusting of floating ring retainer spring stiffness is bigger；Enhance adaptability；Double elastic support structure designs,
There is certain oil return effect for the oil return of outer layer oil film, improve the utilization rate in laboratory space；It is used close to installation side
The oil sealing of ectonexine piston ring designs, and simplifies structure, has certain effect simultaneously for the centering of floating ring.
Detailed description of the invention
Fig. 1 is the perspective view of floating ring in the present invention.
Fig. 2 is the cross-sectional view of floating ring in the present invention.
Fig. 3 is double-layer oil film double base squeeze film damper entirety assembly structure figure of the present invention.
Fig. 4 is the schematic cross-sectional view in the present invention under floating ring, mouse cage and support cap mated condition.
Fig. 5 is the perspective view of mouse cage in the present invention.
Fig. 6 is the perspective view of support cap in the present invention.
Specific embodiment
The preferred embodiment of apparatus of the present invention and method is described in further detail with reference to the accompanying drawing.
It please refers to shown in Fig. 1 to Fig. 6, the present invention discloses a kind of double-layer oil film double base squeeze film damper, including circle
Cylindrical support cap 1, in support cap 1 and with support cap 1 be coaxially disposed floating ring 6, be located at floating ring 6 in and with floating
The mouse cage 8 that ring 6 is coaxially disposed.
Incorporated by reference to shown in Fig. 1, Fig. 2, the floating ring 6 extends outwardly including cylindrical ring body 61, from 61 one end of ring body
Cradle portion 62 out, the return portion 63 for returning to extension backward from the top of cradle portion 62.The return portion 63 is similarly cylindrical.Institute
State the elastic construction that return portion 63 forms opposite ring body by cradle portion 62.The installation that the end of the return portion 63 upwardly extends
Side 64, the installation side 64 are bolted on 1 front end face of support cap.
Incorporated by reference to shown in Fig. 3, Fig. 4, the ring body 61 is between support cap 1 and mouse cage 8.Ring body 61 and support cap 1 it
Between be equipped with proximal outer oil sealing piston ring 5, between ring body 61 and mouse cage 8 be equipped with proximal end internal layer oil sealing piston ring 4.Ring body 61 is with respect to bracket
The other end in portion 62 is against there is distal end oil sealing piston ring 7.Ring body 61, Supporting cover 1, distal end oil sealing piston ring 7, proximal outer oil sealing piston ring
Outer layer oil film is sealed in 5 spaces surrounded.Ring body 61, mouse cage 8, distal end oil sealing piston ring 7, proximal end internal layer oil sealing piston ring 4 surround
Space in be sealed with internal layer oil film.The one piston ring oil sealing in outlying end is installed, installation side proximal end is carried out with inside and outside two piston rings
Oil sealing, this oil sealing mode are conducive to the centering of floating ring 6.
And mouse cage 8 is used as an elastic bearing, ring body 61, cradle portion 62, the return portion 63 of floating ring 6 are used as another bullet
Property bearing, form double elastic support structures in the damper.
Incorporated by reference to further including bushing 9 shown in Fig. 3, in this damper.Support cap 1 and mouse cage 8 respectively with the cylinder on bushing 9
Face centering cooperation, is transition fit, is tapped and be packed by red copper；Support cap 1 and mouse cage 8 are separately mounted to the two sides of bushing 9；Branch
Holding lid 1, bushing 9 and the installation of mouse cage 8 can carry out independently of support 10, under standalone case, vertically be packed into piston ring, floating ring 6
Plug 11 is packed into mouse cage 8, mouse cage 8 and support cap 1 is packed into bushing 9, can reduce installation difficulty, so by mouse cage 8 and support cap 1
It is whole afterwards to be packed into bracket.
The oil film characteristic that the squeeze film damper of different oil film thicknesses is tested in test needs replacing mouse cage 8 or branch
Hold lid 1；Mouse cage 8 and support cap 1 are mounted on 9 two sides of bushing respectively, replacement easy to disassemble is not interfere with each other；
On bushing installation side other than having for fixed through-hole, it is also provided with threaded hole, for dismantling.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for examples detailed above, all skills obtained by the way of equivalent substitution or equivalent transformation
Art scheme, falls within the scope of protection of the present invention.
Claims (5)
1. a kind of double-layer oil film double base squeeze film damper, which is characterized in that including cylindrical support cap, be located at bearing
Floating ring, the mouse cage in floating ring and with floating ring coaxial arrangement being coaxially disposed in lid and with support cap；
The floating ring include cylindrical ring body, the cradle portion extended outward from ring body one end, from the top of cradle portion to
The return portion of extension is returned afterwards, which is similarly cylindrical, and the return portion forms the bullet of opposite ring body by cradle portion
Property structure；The installation side that the end of the return portion upwardly extends, the installation side are fixed on the end face of support cap；The ring body
Between support cap and mouse cage, and it is equipped with proximal outer oil sealing piston ring between ring body and support cap, is set between ring body and mouse cage
Have a proximal end internal layer oil sealing piston ring, ring body with respect to cradle portion the other end against there is distal end oil sealing piston ring.
2. double-layer oil film double base squeeze film damper according to claim 1, which is characterized in that ring body, Supporting cover,
Outer layer oil film is sealed in the space that distal end oil sealing piston ring, proximal outer oil sealing piston ring surround.
3. double-layer oil film double base squeeze film damper according to claim 2, which is characterized in that ring body, mouse cage, remote
Internal layer oil film is sealed in the space that end seal oil piston ring, proximal end internal layer oil sealing piston ring surround.
4. double-layer oil film double base squeeze film damper according to claim 3, which is characterized in that the floating ring
Installation side is bolted on support cap front end.
5. double-layer oil film double base squeeze film damper according to claim 1, which is characterized in that mouse cage and support cap
It is mounted on the two sides of bushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541611.1A CN109668717B (en) | 2018-12-17 | 2018-12-17 | Double-layer oil film double-support squeeze oil film damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541611.1A CN109668717B (en) | 2018-12-17 | 2018-12-17 | Double-layer oil film double-support squeeze oil film damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109668717A true CN109668717A (en) | 2019-04-23 |
| CN109668717B CN109668717B (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811541611.1A Active CN109668717B (en) | 2018-12-17 | 2018-12-17 | Double-layer oil film double-support squeeze oil film damper |
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| Country | Link |
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| CN (1) | CN109668717B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360271A (en) * | 2019-08-23 | 2019-10-22 | 中国船舶重工集团公司第七0三研究所 | A kind of cantilever type double-layer squeeze film damping shock absorber |
| CN112762133A (en) * | 2021-01-28 | 2021-05-07 | 大连理工大学 | Squirrel-cage type squeeze film damper |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080499A (en) * | 1990-03-23 | 1992-01-14 | General Motors Corporation | High temperature squeeze film damper |
| US5215384A (en) * | 1992-04-16 | 1993-06-01 | Dresser-Rand Company | Self-centering squeeze film damper bearing |
| US5251985A (en) * | 1991-09-26 | 1993-10-12 | General Electric Company | Squeeze film damper seal |
| CN2769611Y (en) * | 2004-11-04 | 2006-04-05 | 北京航空航天大学 | Adaptive squeezing oil film damper with metal rubber external ring |
| CN102425639A (en) * | 2011-11-30 | 2012-04-25 | 中国航空动力机械研究所 | Elastic supporting structure |
| CN104455143A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Magnetic damper with floating magnetic ring |
| CN104455200A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Squeeze film damper with floating magnetic ring |
| CN105840657A (en) * | 2016-05-24 | 2016-08-10 | 上海交通大学 | Intelligent controllable bearing and method for controlling rotor vibration |
| CN208123331U (en) * | 2018-03-09 | 2018-11-20 | 沈阳航空航天大学 | A kind of parallel squeeze film damper |
-
2018
- 2018-12-17 CN CN201811541611.1A patent/CN109668717B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5080499A (en) * | 1990-03-23 | 1992-01-14 | General Motors Corporation | High temperature squeeze film damper |
| US5251985A (en) * | 1991-09-26 | 1993-10-12 | General Electric Company | Squeeze film damper seal |
| US5215384A (en) * | 1992-04-16 | 1993-06-01 | Dresser-Rand Company | Self-centering squeeze film damper bearing |
| CN2769611Y (en) * | 2004-11-04 | 2006-04-05 | 北京航空航天大学 | Adaptive squeezing oil film damper with metal rubber external ring |
| CN102425639A (en) * | 2011-11-30 | 2012-04-25 | 中国航空动力机械研究所 | Elastic supporting structure |
| CN104455143A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Magnetic damper with floating magnetic ring |
| CN104455200A (en) * | 2014-12-23 | 2015-03-25 | 江苏理工学院 | Squeeze film damper with floating magnetic ring |
| CN105840657A (en) * | 2016-05-24 | 2016-08-10 | 上海交通大学 | Intelligent controllable bearing and method for controlling rotor vibration |
| CN208123331U (en) * | 2018-03-09 | 2018-11-20 | 沈阳航空航天大学 | A kind of parallel squeeze film damper |
Non-Patent Citations (1)
| Title |
|---|
| 周海仑 等: "浮环式挤压油膜阻尼器的减振机理", 《航空动力学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360271A (en) * | 2019-08-23 | 2019-10-22 | 中国船舶重工集团公司第七0三研究所 | A kind of cantilever type double-layer squeeze film damping shock absorber |
| CN110360271B (en) * | 2019-08-23 | 2021-09-14 | 中国船舶重工集团公司第七0三研究所 | Cantilever type double-layer squeeze film damping shock absorber |
| CN112762133A (en) * | 2021-01-28 | 2021-05-07 | 大连理工大学 | Squirrel-cage type squeeze film damper |
| CN112762133B (en) * | 2021-01-28 | 2021-09-21 | 大连理工大学 | Squirrel-cage type squeeze film damper |
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| Publication number | Publication date |
|---|---|
| CN109668717B (en) | 2020-07-28 |
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