JPH09112549A - Squeeze film damper - Google Patents
Squeeze film damperInfo
- Publication number
- JPH09112549A JPH09112549A JP7293465A JP29346595A JPH09112549A JP H09112549 A JPH09112549 A JP H09112549A JP 7293465 A JP7293465 A JP 7293465A JP 29346595 A JP29346595 A JP 29346595A JP H09112549 A JPH09112549 A JP H09112549A
- Authority
- JP
- Japan
- Prior art keywords
- damper
- ring
- rubber
- support portion
- squeeze film
- 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.)
- Pending
Links
Classifications
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
- F16C27/04—Ball or roller bearings, e.g. with resilient rolling bodies
- F16C27/045—Ball or roller bearings, e.g. with resilient rolling bodies with a fluid film, e.g. squeeze film damping
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/23—Gas turbine engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ガスタービンの軸
受やコンプレッサの軸受の外側などに設置されて、制振
の機能を果たすためのスクイズフィルムダンパに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a squeeze film damper that is installed outside a bearing of a gas turbine or a compressor to perform a vibration damping function.
【０００２】[0002]
【従来の技術】従来、スクイズフィルムダンパとして軸
受の外側に設置される場合、軸受の外周を取り囲む円筒
状のダンパ可動部と、同ダンパ可動部のさらに外周を取
り囲んで固定側に装着される円筒状のダンパ支持部との
間の隙間に、粘性をもった非圧縮性の油を充填して、上
記隙間を増減させる方向の相対速度に応じ振動に対する
減衰力を発生させるようになっている。そして上記隙間
の両側端には、油の漏洩を防止するためのシール部材が
装着される。2. Description of the Related Art Conventionally, when a squeeze film damper is installed on the outside of a bearing, a cylindrical damper movable portion that surrounds the outer periphery of the bearing and a cylinder that is mounted on the fixed side that further surrounds the outer periphery of the damper movable portion. A non-compressible oil having viscosity is filled in a gap between the damper support portion and the damper support portion, and a damping force for vibration is generated according to a relative speed in a direction of increasing or decreasing the gap. Sealing members for preventing oil leakage are attached to both ends of the gap.
【０００３】[0003]
【発明が解決しようとする課題】ところで、前述のよう
なスクイズフィルムダンパでは、通常のシール部材を用
いると完全には油を密封できないため、環境を汚染する
という問題点がある。そこで、図４に示すように、円筒
状のダンパ支持部１と円筒状のダンパ可動部２との間の
隙間３の両側端を覆うように油漏れ防止用弾性膜（カバ
ー）５を設けて、同弾性膜５の内外周の各周縁をそれぞ
れダンパ支持部１およびダンパ可動部２に接着剤で固着
することが考えられるが、このようにすると、このスク
イズフィルムダンパの取り外しの際には、これを壊さな
ければならないという不具合がある。なお、図４におけ
る符号４は油溜めを示す。本発明は、上述のような問題
点の解消をはかろうとするもので、隙間に充填される油
の漏洩を十分に防止できるようにしながら、なお且つメ
ンテナンス等の際の取り外しを容易にしたスクイズフィ
ルムダンパを提供することを目的とする。However, the squeeze film damper as described above has a problem in that it cannot completely seal oil when a normal sealing member is used, thus polluting the environment. Therefore, as shown in FIG. 4, an oil leak preventing elastic film (cover) 5 is provided so as to cover both ends of the gap 3 between the cylindrical damper support portion 1 and the cylindrical damper movable portion 2. It is conceivable that the inner and outer peripheral edges of the elastic film 5 are fixed to the damper support portion 1 and the damper movable portion 2 with an adhesive, respectively. However, in this case, when removing the squeeze film damper, There is a problem that this must be broken. Reference numeral 4 in FIG. 4 indicates an oil sump. The present invention is intended to solve the above-described problems, and is a squeeze squeeze that is capable of sufficiently preventing the oil filled in the gap from leaking and yet facilitates removal during maintenance or the like. The purpose is to provide a film damper.
【０００４】[0004]
【課題を解決するための手段】前述の目的を達成するた
め、本発明のスクイズフィルムダンパは、ダンパ可動部
とダンパ支持部との隙間に充填された油の漏出を防止す
るシール部材をそなえ、同シール部材が、ゴム材および
バネ鋼から構成されて、同バネ鋼により上記のダンパ可
動部およびダンパ支持部の外周部に弾性的に係合して着
脱可能に装填されたことを特徴としている。In order to achieve the above-mentioned object, the squeeze film damper of the present invention is provided with a seal member for preventing the oil filled in the gap between the damper movable part and the damper support part from leaking, The seal member is made of a rubber material and spring steel, and is elastically engaged with the outer peripheral portions of the damper movable portion and the damper support portion by the spring steel and is detachably loaded. .
【０００５】上述のように、ゴム材とバネ鋼とで構成さ
れるシール部材が、同バネ鋼により、上記のダンパ可動
部およびダンパ支持部の外周部に弾性的に着脱可能に係
合する構造になっていると、上記油の漏洩を十分に抑制
しながら、メンテナンス等の際には上記バネ鋼を弾性的
に変形させることにより、上記シール部材を取り外す操
作が簡便に行なわれるようになる。As described above, the seal member composed of the rubber material and the spring steel is elastically and detachably engaged with the outer peripheral portions of the damper movable portion and the damper support portion by the spring steel. With this configuration, the spring steel can be elastically deformed during maintenance or the like while sufficiently suppressing the oil leakage, so that the operation of removing the seal member can be easily performed.
【０００６】また、本発明のスクイズフィルムダンパ
は、上記ダンパ支持部が円筒状に形成されるとともに、
同ダンパ支持部の内側に沿うように上記ダンパ可動部も
円筒状に形成され、上記ゴム材が上記のダンパ支持部と
ダンパ可動部との隙間の両側部をそれぞれ覆うリング状
のゴム膜として形成されて、同ゴム膜の外周縁部および
内周縁部に、それぞれ上記バネ鋼が切れ目をもつリング
バネ状の芯材として埋設されるとともに、同バネ鋼を埋
設された上記ゴム膜の外周縁部および内周縁部をそれぞ
れ嵌合させるリング状の凹溝が、上記のダンパ支持部お
よびダンパ可動部の各両側周縁部にそれぞれ形成されて
いることを特徴としている。これにより、上記シール部
材は、ゴム膜の外周縁部および内周縁部に埋設された芯
材としてのバネ鋼を弾性的に変形させるようにしなが
ら、その着脱操作を簡便に行なえるようになり、常時は
同シール部材の上記バネ鋼を芯材として周縁部に有する
ゴム膜により、油の漏洩を十分に防止することができ
る。そして、上記シール部材の着脱操作が簡便になる
と、このスクイズフィルムダンパの組み立てや分解も簡
便に行なえるようになる。Further, in the squeeze film damper of the present invention, the damper support portion is formed in a cylindrical shape, and
The damper movable portion is also formed in a cylindrical shape along the inside of the damper support portion, and the rubber material is formed as a ring-shaped rubber film that covers both sides of the gap between the damper support portion and the damper movable portion. The spring steel is embedded in the outer peripheral edge portion and the inner peripheral edge portion of the rubber film as a ring-spring-shaped core material having a cut, and the outer peripheral edge portion of the rubber film in which the spring steel is embedded and It is characterized in that ring-shaped concave grooves into which the inner peripheral edge portions are respectively fitted are formed on both side peripheral edge portions of the damper support portion and the damper movable portion. Thus, the seal member can be easily attached and detached while elastically deforming the spring steel as the core material embedded in the outer peripheral edge portion and the inner peripheral edge portion of the rubber film, The rubber film having the above-mentioned spring steel of the same sealing member as a core member at the peripheral portion at all times can sufficiently prevent oil leakage. When the attaching / detaching operation of the seal member is simplified, the squeeze film damper can be easily assembled and disassembled.
【０００７】さらに、本発明のスクイズフィルムダンパ
は、上記ダンパ支持部が円筒状に形成されるとともに、
同ダンパ支持部の内側に沿うように上記ダンパ可動部も
円筒状に形成され、上記ゴム材が上記のダンパ支持部と
ダンパ可動部との隙間の両側部をそれぞれ塞ぐゴムリン
グとして形成されて、上記バネ鋼が上記ゴムリングを上
記隙間の両側部に保持するように配設され、同バネ鋼が
上記のダンパ支持部およびダンパ可動部の一方における
リング状の凹溝に弾性的に嵌合すべく切れ目をもつリン
グバネとして形成されていることを特徴としている。こ
のように、上記シール部材におけるゴムリングが上記隙
間の両側部を塞いで弾性的に密閉するごとく、切れ目付
きリングバネが装着されて、同リングバネが上記のダン
パ支持部およびダンパ可動部の一方におけるリング状の
凹溝に弾性的に嵌合するようになっていると、この場合
も、メンテナンス等の際に上記シール部材の着脱が簡便
に行なわれるようになり、これに伴いダンパ可動部の着
脱も容易に行なわれるようになる。Further, in the squeeze film damper of the present invention, the damper support portion is formed in a cylindrical shape, and
The damper movable portion is also formed in a cylindrical shape along the inside of the damper support portion, and the rubber material is formed as a rubber ring that closes both sides of the gap between the damper support portion and the damper movable portion, The spring steel is arranged so as to hold the rubber ring on both sides of the gap, and the spring steel elastically fits into a ring-shaped groove in one of the damper support portion and the damper movable portion. The feature is that it is formed as a ring spring with a break. In this way, a notched ring spring is mounted so that the rubber ring in the seal member closes both sides of the gap and elastically seals, and the ring spring is attached to the ring in one of the damper support portion and the damper movable portion. If the elastic member is elastically fitted into the groove, the sealing member can be easily attached and detached at the time of maintenance and the like, and the damper movable portion can be attached and detached accordingly. It will be done easily.
【０００８】また、本発明のスクイズフィルムダンパ
は、上記ゴム材の材質がアクリロニトリルブタジエンゴ
ムであることを特徴としている。このように、上記ゴム
材としてアクリロニトリルブタジエンゴムが採用される
と、その油に対する耐久性と適度の柔軟性とにより、油
に対する密封作用が常時的確に行なわれるようになる。The squeeze film damper of the present invention is characterized in that the material of the rubber material is acrylonitrile butadiene rubber. In this way, when acrylonitrile butadiene rubber is used as the rubber material, the oil-sealing action and the appropriate flexibility allow the oil-sealing action to be always performed accurately.
【０００９】[0009]
【発明の実施の形態】以下図面により、本発明の実施形
態について説明すると、図１は本発明の第１実施形態と
してのスクイズフィルムダンパを軸受に装着した状態で
示す縦断面図、図２は図１のスクイズフィルムダンパに
おけるシール部材を示すもので、図２(a)はその断面
図、図２(b)は同シール部材におけるリングバネ状芯材
を示す説明図であり、図３は本発明の第２実施形態とし
てのスクイズフィルムダンパを示す縦断面図である。BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional view showing a squeeze film damper as a first embodiment of the present invention mounted on a bearing, and FIG. 2 shows a seal member in the squeeze film damper of FIG. 1, FIG. 2 (a) is a sectional view thereof, FIG. 2 (b) is an explanatory view showing a ring spring-shaped core member in the seal member, and FIG. It is a longitudinal cross-sectional view showing a squeeze film damper as a second embodiment of the present invention.
【００１０】まず本発明の第１実施形態について説明す
ると、図１に示すように、回転軸９を支承するボールベ
アリング（玉軸受）が外輪６，内輪７およびボール８で
構成されていて、同軸受の振動を抑制するためのスクイ
ズフィルムダンパ10の本体が、外輪６の外周に当接する
円筒状ダンパ可動部２と固定側の円筒状ダンパ支持部１
とで構成されて、これらのダンパ支持部１とダンパ可動
部２との隙間３における油溜め４から、同隙間３内に油
が充填されるようになっている。First, the first embodiment of the present invention will be described. As shown in FIG. 1, a ball bearing (ball bearing) that supports a rotary shaft 9 is composed of an outer ring 6, an inner ring 7 and a ball 8. The main body of the squeeze film damper 10 for suppressing the vibration of the bearing has a cylindrical damper movable part 2 that abuts on the outer circumference of the outer ring 6 and a fixed side cylindrical damper support part 1.
And the oil is filled from the oil sump 4 in the gap 3 between the damper support portion 1 and the damper movable portion 2 into the gap 3.
【００１１】そして、隙間３内の油の漏出を防止するた
めのシール部材５が、隙間３の両側部をそれぞれ覆うリ
ング状のゴム膜５ｃと、同ゴム膜５ｃの外周縁部および
内周縁部にそれぞれ芯材として埋設された一対のリング
バネ状のバネ鋼５ａ，５ｂ〔図２(a)，(b)参照〕とで構
成されている。図２(a)に示すように、ゴム膜５ｃはＳ
字形断面をもつように屈曲して形成され、またリング状
の各バネ鋼５ａ，５ｂは、図２(b)に示すように、それ
ぞれシール部材の装着および取り外しの際の変形を許容
するための切れ目を有している。A seal member 5 for preventing oil from leaking in the gap 3 is provided with a ring-shaped rubber film 5c for covering both sides of the gap 3, and an outer peripheral edge portion and an inner peripheral edge portion of the rubber film 5c. And a pair of ring-spring-shaped spring steels 5a and 5b embedded as core materials [see FIGS. 2 (a) and 2 (b)]. As shown in FIG. 2 (a), the rubber film 5c is S
Each of the ring-shaped spring steels 5a and 5b, which are formed by bending so as to have a V-shaped cross section, as shown in FIG. It has a break.
【００１２】この第１実施形態のスクイズフィルムダン
パは、上述のように構成されているので、その隙間３に
粘性をもった非圧縮性の油が充填されることにより、回
転軸９の回転に伴う振動時に、隙間３を増減させる方向
の相対速度に応じ、振動に対する減衰力が発生するよう
になっている。そして、シール部材５の各芯材として各
バネ鋼５ａ，５ｂを含むリング状のゴム膜５ｃの外周お
よび内周の各周縁部が、それぞれダンパ支持部１および
ダンパ可動部２における各凹溝１ａ，２ａに嵌合するこ
とにより、隙間３からの油の漏洩が十分に防止されるよ
うになる。すなわち、各バネ鋼５ａ，５ｂの復元力がシ
ール性の向上に寄与している。Since the squeeze film damper of the first embodiment is constructed as described above, the gap 3 is filled with viscous non-compressible oil so that the rotation shaft 9 can rotate. At the time of accompanying vibration, a damping force for the vibration is generated according to the relative speed in the direction of increasing or decreasing the gap 3. The outer peripheral edge and the inner peripheral edge of the ring-shaped rubber film 5c including the spring steels 5a and 5b as the core members of the seal member 5 are respectively recessed grooves 1a in the damper support portion 1 and the damper movable portion 2. , 2a, oil can be sufficiently prevented from leaking from the gap 3. That is, the restoring force of each spring steel 5a, 5b contributes to the improvement of the sealability.
【００１３】また、このスクイズフィルムダンパの組み
立ておよび分解の際におけるシール部材５の着脱は、同
部材５の芯材としての切れ目をもつリングバネ状のバネ
鋼５ａ，５ｂの変形操作により、容易に行なうことがで
きる。なお、この変形操作は鋏状の治具の両先端をバネ
鋼５ａ，５ｂの各切れ目の両端のリング部に係合させて
同治具を開閉させることにより容易に行なうことができ
る。Further, the assembling and dismounting of the seal member 5 at the time of assembling and disassembling the squeeze film damper can be easily performed by deforming the ring spring-shaped spring steels 5a and 5b having a cut as a core material of the member 5. be able to. The deforming operation can be easily performed by engaging both ends of the scissors-like jig with the ring portions at both ends of the cuts of the spring steels 5a and 5b to open and close the jig.
【００１４】次に本発明の第２実施形態としてのスクイ
ズフィルムダンパについて説明すると、図３に示すよう
に、この場合も図示しないボールベアリング等の軸受の
振動を抑制するためのスクイズフィルムダンパの本体
が、軸受外周に当接する円筒状ダンパ可動部２と固定側
の円筒状ダンパ支持部１とで構成されて、これらのダン
パ支持部１とダンパ可動部２との隙間３における油溜め
４から、同隙間３内に油が充填されるようになってい
る。Next, a squeeze film damper according to a second embodiment of the present invention will be described. As shown in FIG. 3, the body of the squeeze film damper for suppressing the vibration of a bearing such as a ball bearing (not shown) in this case as well. Is composed of a cylindrical damper movable part 2 that abuts on the outer circumference of the bearing and a fixed side cylindrical damper support part 1. From an oil sump 4 in a gap 3 between the damper support part 1 and the damper movable part 2, The gap 3 is filled with oil.
【００１５】そして、隙間３内の油の漏出を防止するた
めのシール部材５が、ダンパ支持部１とダンパ可動部２
との隙間３の両側部をそれぞれ塞ぐゴムリング５ｄと、
同ゴムリング５ｄを隙間３の両側部に保持するように配
設されるバネ鋼としてのリングバネ５ｅとで構成されて
いる。リングバネ５ｅは、ダンパ可動部２の周縁部に形
成されたリング状の凹溝２ａに弾性的に嵌合できるよう
に、切れ目をもったリング状に形成されている。A seal member 5 for preventing oil from leaking out from the gap 3 is provided with a damper support portion 1 and a damper movable portion 2.
A rubber ring 5d that closes both sides of the gap 3 between
A ring spring 5e as spring steel is arranged so as to hold the rubber ring 5d on both sides of the gap 3. The ring spring 5e is formed in a ring shape having a cut so that it can be elastically fitted into the ring-shaped recessed groove 2a formed in the peripheral edge portion of the damper movable portion 2.
【００１６】上述の第２実施形態としてのスクイズフィ
ルムダンパも、隙間３に油が充填されることにより前述
の第１実施形態のスクイズフィルムダンパと同様に、振
動に対する減衰力を発生させることができる。そして、
隙間３からの油の漏出は、シール部材５におけるゴムリ
ング５ｄとリングバネ５ｅとの協働作用で十分に防止さ
れる。また、このスクイズフィルムダンパの組み立てお
よび分解に際しては、シール部材５の着脱が、リングバ
ネ５ｅの変形操作により簡便に行なわれる。The squeeze film damper according to the second embodiment described above can generate a damping force against vibration by filling the gap 3 with oil, similarly to the squeeze film damper according to the first embodiment. . And
The leakage of oil from the gap 3 is sufficiently prevented by the cooperation of the rubber ring 5d and the ring spring 5e in the seal member 5. When assembling and disassembling the squeeze film damper, the seal member 5 can be easily attached and detached by deforming the ring spring 5e.
【００１７】なお、ゴムリング５ｄは、その収容スペー
スよりもやや大きいサイズに設定されており、これによ
り同ゴムリング５ｄの装着は、上記収容スペースに押し
込むようにして密着状態で行なわれる。なお、上述の第
１実施形態および第２実施形態のいずれの場合も、ゴム
材としてアクリロニトリルブタジエンゴムが採用され、
その相対振動を阻害しない程度に柔らかい材質と十分な
耐油性とによって適切なシール性が保たれるようにな
る。The rubber ring 5d is set to a size slightly larger than the accommodating space, so that the rubber ring 5d can be mounted in a close contact state by being pushed into the accommodating space. In any of the above-described first and second embodiments, acrylonitrile butadiene rubber is adopted as the rubber material,
An appropriate sealing property is maintained by a soft material and sufficient oil resistance that do not hinder the relative vibration.
【００１８】[0018]
【発明の効果】以上詳述したように、本発明のスクイズ
フィルムダンパによれば、次のような効果が得られる。 (1) ダンパ支持部とダンパ可動部との隙間に充填される
油の漏出を防止するシール部材が、ゴム材とバネ鋼とで
構成されて、同バネ鋼により、上記のダンパ可動部およ
びダンパ支持部の外周部に弾性的に着脱可能に係合する
構造になっているので、上記油の漏洩を十分に抑制しな
がら、メンテナンス等の際には上記バネ鋼を弾性的に変
形させることにより、同シール部材を取り外す操作が簡
便に行なわれるようになる。 (2) 円筒状のダンパ支持部およびダンパ可動部の隙間の
油を密封するシール部材が、上記隙間の両側部を覆うリ
ング状のゴム膜と、同ゴム膜の外周および内周の縁部に
それぞれ芯材として埋設された切れ目付きリングバネ状
のバネ鋼とで構成されると、同シール部材は、上記芯材
としてのバネ鋼を弾性的に変形させるようにしながら、
その着脱操作を簡便に行なえるようになり、常時は同シ
ール部材の上記バネ鋼を芯材とするゴム膜により油の漏
洩を十分に防止することができる。そして、上記シール
部材の着脱操作が簡便になると、このスクイズフィルム
ダンパの組み立てや分解も簡便に行なえるようになる。 (3) 円筒状のダンパ支持部とダンパ可動部との隙間の両
側部におけるシール部材が、ゴムリングと同ゴムリング
を保持する切れ目付きリングバネとで構成されて、同リ
ングバネが上記のダンパ支持部およびダンパ可動部の一
方におけるリング状の凹溝に弾性的に嵌合するようにな
っていると、メンテナンス等の際に上記シール部材の着
脱が上記切れ目付きリングバネの変形によって簡便に行
なわれるようになり、これに伴いダンパ可動部の着脱も
容易に行なわれるようになる。 (4) 上記ゴム材としてのアクリロニトリルブタジエンゴ
ムが採用されると、その油に対する耐久性と適度の柔軟
性とにより、油に対する密封作用が常時的確に行なわれ
るようになる。As described in detail above, according to the squeeze film damper of the present invention, the following effects can be obtained. (1) The seal member that prevents the oil filled in the gap between the damper support portion and the damper movable portion from leaking is composed of a rubber material and spring steel, and the spring movable steel and the damper movable portion are made of the spring steel. Since it has a structure that elastically and removably engages with the outer peripheral portion of the support portion, by elastically deforming the spring steel during maintenance etc. while sufficiently suppressing the leakage of the oil. The operation of removing the seal member can be easily performed. (2) A seal member that seals oil in the gap between the cylindrical damper support portion and the damper movable portion is provided on the ring-shaped rubber film covering both sides of the gap and on the outer and inner edges of the rubber film. When configured with a ring-shaped spring steel with a cut ring embedded as a core material, the seal member elastically deforms the spring steel as the core material,
The attachment / detachment operation can be easily performed, and at all times, the rubber film of the seal member having the spring steel as the core material can sufficiently prevent oil leakage. When the attaching / detaching operation of the seal member is simplified, the squeeze film damper can be easily assembled and disassembled. (3) The seal members at both sides of the gap between the cylindrical damper support portion and the damper movable portion are composed of a rubber ring and a notched ring spring that holds the rubber ring, and the ring spring has the above-mentioned damper support portion. Also, if the ring-shaped concave groove in one of the damper movable parts is elastically fitted, the seal member can be easily attached and detached by the deformation of the notched ring spring at the time of maintenance or the like. As a result, the movable damper part can be easily attached and detached. (4) When the acrylonitrile butadiene rubber is used as the rubber material, the sealing action against oil is always performed accurately due to its durability against oil and appropriate flexibility.
【図１】本発明の第１実施形態としてのスクイズフィル
ムダンパを軸受に装着した状態で示した縦断面図であ
る。FIG. 1 is a vertical cross-sectional view showing a squeeze film damper as a first embodiment of the present invention mounted on a bearing.
【図２】図１のスクイズフィルムダンパにおけるシール
部材を示すもので、(a)図はその断面図、(b)図は同シー
ル部材におけるリングバネ状芯材を示す説明図である。2A and 2B show a seal member in the squeeze film damper of FIG. 1, FIG. 2A being a sectional view thereof, and FIG. 2B being an explanatory view showing a ring-spring-shaped core member in the seal member.
【図３】本発明の第２実施形態としてのスクイズフィル
ムダンパを示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing a squeeze film damper as a second embodiment of the present invention.
【図４】スクイズフィルムダンパの一例を示す縦断面図
である。FIG. 4 is a vertical sectional view showing an example of a squeeze film damper.
１ ダンパ支持部 １ａ 凹溝 ２ ダンパ可動部 ２ａ 凹溝 ３ 隙間 ４ 油溜め ５ シール部材 ５ａ，５ｂ バネ鋼 ５ｃ ゴム膜 ５ｄ ゴムリング ５ｅ リングバネ ６ 軸受の外輪 ７ 軸受の内輪 ８ ボール ９ 回転軸 1 Damper Supporting Part 1a Recessed Groove 2 Damper Moving Part 2a Recessed Groove 3 Gap 4 Oil Reservoir 5 Sealing Member 5a, 5b Spring Steel 5c Rubber Film 5d Rubber Ring 5e Ring Spring 6 Bearing Outer Ring 7 Bearing Inner Ring 8 Ball 9 Rotating Shaft
Claims (4)
パ可動部とダンパ支持部との隙間に充填された油の漏出
を防止するシール部材をそなえ、同シール部材が、ゴム
材およびバネ鋼から構成されて、同バネ鋼により上記の
ダンパ可動部およびダンパ支持部の外周部に弾性的に係
合して着脱可能に装填されたことを特徴とする、スクイ
ズフィルムダンパ。1. A squeeze film damper, comprising a seal member for preventing leakage of oil filled in a gap between a damper movable portion and a damper support portion, the seal member being made of a rubber material and spring steel, A squeeze film damper, wherein the spring steel is elastically engaged with the outer peripheral portions of the damper movable portion and the damper support portion to be detachably mounted.
パにおいて、上記ダンパ支持部が円筒状に形成されると
ともに、同ダンパ支持部の内側に沿うように上記ダンパ
可動部も円筒状に形成され、上記ゴム材が上記のダンパ
支持部とダンパ可動部との隙間の両側部をそれぞれ覆う
リング状のゴム膜として形成されて、同ゴム膜の外周縁
部および内周縁部に、それぞれ上記バネ鋼が切れ目をも
つリングバネ状の芯材として埋設されるとともに、同バ
ネ鋼を埋設された上記ゴム膜の外周縁部および内周縁部
を嵌合させるリング状の凹溝が、上記のダンパ支持部お
よびダンパ可動部の各両側周縁部にそれぞれ形成されて
いることを特徴とする、スクイズフィルムダンパ。2. The squeeze film damper according to claim 1, wherein the damper support portion is formed in a cylindrical shape, and the damper movable portion is also formed in a cylindrical shape along the inside of the damper support portion. The rubber material is formed as a ring-shaped rubber film respectively covering both side portions of the gap between the damper support portion and the damper movable portion, and the spring steel is formed on the outer peripheral edge portion and the inner peripheral edge portion of the rubber film, respectively. The ring-shaped recessed groove is embedded as a ring-spring-shaped core material having a cut, and the outer peripheral edge portion and the inner peripheral edge portion of the rubber film in which the spring steel is embedded are fitted into the damper support portion and the damper. A squeeze film damper, characterized in that it is formed on each of the peripheral portions on both sides of the movable portion.
パにおいて、上記ダンパ支持部が円筒状に形成されると
ともに、同ダンパ支持部の内側に沿うように上記ダンパ
可動部も円筒状に形成され、上記ゴム材が上記のダンパ
支持部とダンパ可動部との隙間の両側周縁部をそれぞれ
塞ぐゴムリングとして形成されて、上記バネ鋼が上記ゴ
ムリングを上記隙間の両側周縁部に保持するように配設
され、同バネ鋼が上記のダンパ支持部およびダンパ可動
部の一方におけるリング状の凹溝に弾性的に嵌合すべく
切れ目をもつリングバネとして形成されていることを特
徴とする、スクイズフィルムダンパ。3. The squeeze film damper according to claim 1, wherein the damper support portion is formed in a cylindrical shape, and the damper movable portion is also formed in a cylindrical shape along the inside of the damper support portion. The rubber material is formed as a rubber ring that closes both peripheral edge portions of the gap between the damper support portion and the damper movable portion, and the spring steel is arranged so as to hold the rubber ring at both peripheral edge portions of the gap. The squeeze film damper is characterized in that the spring steel is formed as a ring spring having a notch so as to be elastically fitted into a ring-shaped concave groove in one of the damper support portion and the damper movable portion. .
クイズフィルムダンパにおいて、上記ゴム材の材質がア
クリロニトリルブタジエンゴムであることを特徴とす
る、スクイズフィルムダンパ。4. The squeeze film damper according to claim 1, wherein the rubber material is acrylonitrile butadiene rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7293465A JPH09112549A (en) | 1995-10-17 | 1995-10-17 | Squeeze film damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7293465A JPH09112549A (en) | 1995-10-17 | 1995-10-17 | Squeeze film damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09112549A true JPH09112549A (en) | 1997-05-02 |
Family
ID=17795108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7293465A Pending JPH09112549A (en) | 1995-10-17 | 1995-10-17 | Squeeze film damper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09112549A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1167788A1 (en) * | 2000-06-30 | 2002-01-02 | Techspace Aero S.A. | Sealing device of a squeeze film damper incorporated in a rolling element bearing |
| EP1170520A3 (en) * | 2000-06-30 | 2003-09-17 | Techspace Aero S.A. | Rolling element bearing provided with a squeeze film damper |
| US6626574B2 (en) | 2000-06-30 | 2003-09-30 | Techspace Aero S.A. | Squeeze film damping type bearing |
| WO2007023702A1 (en) * | 2005-08-24 | 2007-03-01 | Ihi Corporation | Damper element of bearing, method of manufacturing damper element, bearing, and gas turbine engine |
| US7798720B1 (en) * | 2006-11-16 | 2010-09-21 | Florida Turbine Technologies, Inc. | Squeeze film damper with highly variable support stiffness |
| US8038352B2 (en) * | 2007-01-26 | 2011-10-18 | Jtekt Corporation | Rolling bearing device |
| US20120097824A1 (en) * | 2010-10-22 | 2012-04-26 | Alain Rene Regis Giraud | Hydraulic center bearing |
| US8182153B2 (en) * | 2009-02-27 | 2012-05-22 | General Electric Company | Bearing damper with spring seal |
| JP2013076435A (en) * | 2011-09-30 | 2013-04-25 | Mitsubishi Heavy Industries Compressor Corp | Journal bearing device |
| RU2486383C1 (en) * | 2011-10-17 | 2013-06-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет | Damping device of drain safety valve |
| CN111237437A (en) * | 2020-02-19 | 2020-06-05 | 常州工学院 | Self-adaptive variable-supporting-rigidity gear transmission device and method |
-
1995
- 1995-10-17 JP JP7293465A patent/JPH09112549A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1167788A1 (en) * | 2000-06-30 | 2002-01-02 | Techspace Aero S.A. | Sealing device of a squeeze film damper incorporated in a rolling element bearing |
| EP1170520A3 (en) * | 2000-06-30 | 2003-09-17 | Techspace Aero S.A. | Rolling element bearing provided with a squeeze film damper |
| US6626574B2 (en) | 2000-06-30 | 2003-09-30 | Techspace Aero S.A. | Squeeze film damping type bearing |
| US6695478B2 (en) * | 2000-06-30 | 2004-02-24 | Techspace Aero S.A. | Squeeze film damping type bearing |
| WO2007023702A1 (en) * | 2005-08-24 | 2007-03-01 | Ihi Corporation | Damper element of bearing, method of manufacturing damper element, bearing, and gas turbine engine |
| US7798720B1 (en) * | 2006-11-16 | 2010-09-21 | Florida Turbine Technologies, Inc. | Squeeze film damper with highly variable support stiffness |
| US8038352B2 (en) * | 2007-01-26 | 2011-10-18 | Jtekt Corporation | Rolling bearing device |
| US8182153B2 (en) * | 2009-02-27 | 2012-05-22 | General Electric Company | Bearing damper with spring seal |
| US20120097824A1 (en) * | 2010-10-22 | 2012-04-26 | Alain Rene Regis Giraud | Hydraulic center bearing |
| US8591117B2 (en) * | 2010-10-22 | 2013-11-26 | Trelleborg Automotive Usa | Hydraulic center bearing |
| JP2013076435A (en) * | 2011-09-30 | 2013-04-25 | Mitsubishi Heavy Industries Compressor Corp | Journal bearing device |
| RU2486383C1 (en) * | 2011-10-17 | 2013-06-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Самарский государственный технический университет | Damping device of drain safety valve |
| CN111237437A (en) * | 2020-02-19 | 2020-06-05 | 常州工学院 | Self-adaptive variable-supporting-rigidity gear transmission device and method |
| CN111237437B (en) * | 2020-02-19 | 2021-04-02 | 常州工学院 | Self-adaptive variable-supporting-rigidity gear transmission device and method |
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