JPH0512632U - Ball bearing supercharger - Google Patents
Ball bearing superchargerInfo
- Publication number
- JPH0512632U JPH0512632U JP066570U JP6657091U JPH0512632U JP H0512632 U JPH0512632 U JP H0512632U JP 066570 U JP066570 U JP 066570U JP 6657091 U JP6657091 U JP 6657091U JP H0512632 U JPH0512632 U JP H0512632U
- Authority
- JP
- Japan
- Prior art keywords
- oil film
- ball bearing
- damping ring
- supercharger
- bearing
- 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
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
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/546—Systems with spaced apart rolling bearings including at least one angular contact bearing
- F16C19/547—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings
- F16C19/548—Systems with spaced apart rolling bearings including at least one angular contact bearing with two angular contact rolling bearings in O-arrangement
-
- 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
- F16C2360/24—Turbochargers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supercharger (AREA)
- Vibration Prevention Devices (AREA)
Abstract
(57)【要約】
【目的】 オイルフィルムが良好に形成されない場合で
も、金属接触による振動の伝達を抑えて騒音を低減す
る。
【構成】 タービン翼車４とブロワ扇車５を連結するタ
ービン軸６を玉軸受９，１０にて回転自在に支持する。
玉軸受９，１０を、軸受車室３の内径部に配したオイル
フィルムダンパ１２により保持する。軸受車室３の内径
部とオイルフィルムの外面との間に形成されるオイルフ
ィルム１１の部分にゴムや樹脂からなる制振リング１８
を配置する。制振リング１８は、外周部に軸方向へ延び
る凹溝を有する。制振リング１８によりダンピング効果
を得る。オイルフィルムダンパ１２の外面を流れるオイ
ルは凹溝を通過させる。
(57) [Abstract] [Purpose] Even if the oil film is not formed well, it suppresses the transmission of vibration due to metal contact and reduces noise. [Structure] A turbine shaft 6 connecting a turbine impeller 4 and a blower fan 5 is rotatably supported by ball bearings 9 and 10.
The ball bearings 9 and 10 are held by an oil film damper 12 arranged inside the bearing casing 3. A vibration damping ring 18 made of rubber or resin is formed on the portion of the oil film 11 formed between the inner diameter of the bearing casing 3 and the outer surface of the oil film.
To place. The damping ring 18 has a groove on the outer peripheral portion that extends in the axial direction. The damping ring 18 provides a damping effect. The oil flowing on the outer surface of the oil film damper 12 passes through the concave groove.
Description
【０００１】[0001]
本考案はタービン軸を支持する玉軸受をオイルフィルムダンパにて保持するよ うにしてある玉軸受過給機に関するものである。 The present invention relates to a ball bearing supercharger in which a ball bearing supporting a turbine shaft is held by an oil film damper.
【０００２】[0002]
玉軸受過給機の一例としては、一般に、図４に示す如く、タービン車室１とブ ロワ車室２とを軸受車室３を介在させて一体化し、タービン車室１内のタービン 翼車４とブロワ車室２内のブロワ扇車５とを軸受車室３内に通されたタービン軸 ６にて連結し、タービン車室のガス通路８から流れ込むガスによりタービン翼車 ４を回転させることでブロワ扇車５が回転するようにし、且つ上記タービン軸６ が軸受車室３内のタービン側とブロワ側の玉軸受９，１０にて回転自在に支持さ れるようにしたものが知られている。 As an example of the ball bearing supercharger, generally, as shown in FIG. 4, a turbine casing 1 and a blower casing 2 are integrated with a bearing casing 3 interposed therebetween, and a turbine impeller in the turbine casing 1 is integrated. 4 and a blower fan 5 in the blower casing 2 are connected by a turbine shaft 6 passed through the bearing casing 3, and the turbine impeller 4 is rotated by gas flowing from a gas passage 8 in the turbine casing. It is known that the blower fan 5 is rotated by the above-mentioned method, and the turbine shaft 6 is rotatably supported by the ball bearings 9 and 10 on the turbine side and the blower side in the bearing casing 3. There is.
【０００３】 上記玉軸受９，１０は、ダンピング効果が不可欠であるため、外面にオイルフ ィルム１１を形成させるようにして軸受車室３の内径部１３に配したオイルフィ ルムダンパ１２に外輪をそれぞれ固定し、上記タービン軸６に内輪をそれぞれ固 定した構成としてある。なお、７は遮熱板、１４はオイルフィルムダンパ１２の 回り止めピン、１５はシールプレート、１６は油切り、１７はピストンリングを 示す。Since damping effect is indispensable for the ball bearings 9 and 10, the outer ring is fixed to the oil film damper 12 arranged in the inner diameter portion 13 of the bearing casing 3 by forming the oil film 11 on the outer surface. The inner races are fixed to the turbine shaft 6, respectively. Reference numeral 7 is a heat shield plate, 14 is a rotation stop pin of the oil film damper 12, 15 is a seal plate, 16 is an oil drainer, and 17 is a piston ring.
【０００４】[0004]
ところが、上記玉軸受過給機の場合、タービン軸６を支持する玉軸受９，１０ が点接触方式であってその振動、騒音が軸受車室３に伝わることから、軸受車室 ３の内径部１３との間にオイルフィルム１１を形成させるようにしたオイルフィ ルムダンパ１２にて玉軸受９，１０を保持させるようにしてあるが、フローティ ング軸受方式ではオイルフィルムが２層形成されるのに対して、玉軸受方式では 上記のオイルフィルム１１が１層しか形成されないため、たとえば、オイルフィ ルム１１が良好に形成されなかったときには直接金属接触して振動が外部へ伝わ ってしまう等、充分な制振効果が得られず、騒音が高くなる問題がある。 However, in the case of the above ball bearing supercharger, the ball bearings 9 and 10 supporting the turbine shaft 6 are of the point contact type and the vibration and noise thereof are transmitted to the bearing casing 3, so that the inner diameter portion of the bearing casing 3 is Although the ball bearings 9 and 10 are held by the oil film damper 12 that forms the oil film 11 between the oil film 11 and the oil film 13, the floating bearing system forms two layers of the oil film. In the ball bearing method, since only one layer of the oil film 11 is formed, for example, when the oil film 11 is not formed well, the metal is directly contacted with the vibration and the vibration is transmitted to the outside. There is a problem that the effect is not obtained and the noise becomes high.
【０００５】 そこで、本考案は、オイルフィルムが良好に形成されないときでも金属接触に よる振動の伝達を抑えて騒音の高まりを防止することができるようにしようとす るものである。Therefore, the present invention is intended to prevent the increase of noise by suppressing the transmission of vibration due to metal contact even when the oil film is not well formed.
【０００６】[0006]
本考案は、上記課題を解決するために、軸受車室の内径部に配したオイルフィ ルムダンパにより玉軸受を保持し、該玉軸受にてタービン軸とブロワ扇車とを連 結するタービン軸を回転自在に支持するようにしてある玉軸受過給機において、 上記軸受車室の内径部とオイルフィルムダンパの外面との間に形成されるオイル フィルム部に、外周部に軸方向へ延びる凹溝を形成した制振リングを介在配置し てなる構成とする。 In order to solve the above problems, the present invention holds a ball bearing by means of an oil film damper arranged inside the bearing casing, and the ball bearing rotates the turbine shaft connecting the turbine shaft and the blower fan. In a ball bearing supercharger that is freely supported, in the oil film portion formed between the inner diameter portion of the bearing casing and the outer surface of the oil film damper, a groove extending in the axial direction is formed in the outer peripheral portion. The formed damping ring will be interposed.
【０００７】[0007]
オイルフィルム部に制振リングが配置してあるため、オイルフィルムが良好に 形成されないような場合でも、制振リングにより金属接触が防止されてダンピン グ効果が得られる。したがって、振動の伝達が抑えられて騒音が低減される。又 、制振リングには外周部に軸方向の凹溝が形成されていることから、オイルの流 通が阻害されることはなく、オイルによるタービン側の冷却機能を損う心配がな く、更に、上記凹溝の存在により、スラッジが制振リングの部分に堆積すること もなく、機能低下を惹き起す虞もない。 Since the damping ring is placed in the oil film, even if the oil film is not formed well, the damping ring prevents metal contact and provides a damping effect. Therefore, transmission of vibration is suppressed and noise is reduced. Further, since the damping ring has an axial groove formed in the outer peripheral portion, it does not impede the flow of oil, and there is no fear of impairing the cooling function of the turbine side by oil. Further, due to the presence of the concave groove, sludge does not accumulate on the vibration damping ring portion, and there is no fear that the function is deteriorated.
【０００８】[0008]
以下、図面に基づき本考案の実施例を説明する。 An embodiment of the present invention will be described below with reference to the drawings.
【０００９】 図１乃至図３は本考案の一実施例を示すもので、図４に示したと同様に、ター ビン翼車４とブロワ扇車５とを連結するタービン軸６を玉軸受９，１０にて回転 自在に支持すると共に、該玉軸受９，１０を、軸受車室３の内径部１３に配した オイルフィルムダンパ１２により保持するようにしてある玉軸受過給機において 、上記軸受車室３の内径部１３とオイルフィルムダンパ１２の外面との間に形成 されるオイルフィルム１１の部分に介在させるように、図２及び図３に拡大して 示す如く、ゴムあるいは樹脂からなり、外周部に軸方向へ延びる凹溝１８ａを周 方向へ等間隔に配列形成してなる歯車形状の制振リング１８を、上記オイルフィ ルムダンパ１２の両端部外周に設けた環状溝１９内に嵌入させた構成とする。な お、上記制振リング１８は、２つ割り構造にしておいて環状溝１９の部分で組み 合わせるようにしたり、スリットを１個所入れておいてオイルフィルムダンパ１ ２の軸方向から広げた状態で挿入させるようにしてもよい。FIGS. 1 to 3 show an embodiment of the present invention. As in the case shown in FIG. 4, the turbine shaft 6 connecting the turbine vane wheel 4 and the blower fan 5 with a ball bearing 9, In the ball bearing supercharger, which is rotatably supported by 10, and which is held by an oil film damper 12 arranged in the inner diameter portion 13 of the bearing casing 3, As shown in an enlarged view in FIGS. 2 and 3, the outer circumference is made of rubber or resin so as to intervene in the portion of the oil film 11 formed between the inner diameter portion 13 of the chamber 3 and the outer surface of the oil film damper 12. A gear-shaped damping ring 18 in which concave grooves 18a extending in the axial direction are formed at equal intervals in the circumferential direction is fitted into annular grooves 19 provided on the outer circumference of both ends of the oil film damper 12. And The vibration damping ring 18 has a structure in which it is divided into two parts and is assembled at the annular groove 19 part, or one slit is provided to expand it from the axial direction of the oil film damper 12. You may make it insert by.
【００１０】 かかる構成としてあるため、軸受車室３の内径部１３とオイルフィルムダンパ １２の外面との間にオイルフィルム１１が良好に形成されないような事態が発生 しても、制振リング１８の存在により金属同士が接触してしまうようなことがな くて安定したダンピング効果が得られる。したがって、外部への振動の伝達が抑 えられることにより騒音が高められるようなことがなくなる。Due to this structure, even if the oil film 11 is not properly formed between the inner diameter portion 13 of the bearing casing 3 and the outer surface of the oil film damper 12, the damping ring 18 is A stable damping effect can be obtained without the metal contacting due to the existence. Therefore, noise is not increased by suppressing the transmission of vibration to the outside.
【００１１】 ところで、一般に、玉軸受過給機では、タービン側の冷却機能が必要であるた め、ある程度のオイルをオイルフィルムダンパ１２の外面を通してタービン側へ 流す必要があるが、本考案においては、オイルフィルム１１部に配置した上記制 振リング１８の外周部に、軸方向に延びる凹溝１８ａが周方向に配列形成されて いて、この凹溝１８ａの部分をオイルが通過できることから、上記冷却用オイル の流通性を阻害するようなことはない。又、上記において、たとえば、制振リン グ１８に代えて、通常のＯリングをオイルフィルム１１部に配置した場合、制振 リング１８を配置した場合と同様なダンピング効果は得られるが、一般に玉軸受 過給機では、多くのごみや異物が存在するため、スラッジがＯリング部に堆積し て機能低下を招く虞がある。その点、本考案においては、上述した如く制振リン グ１８の外周に形成された凹溝１８ａがオイルの流通性を阻害しないため、スラ ッジを堆積させてしまうようなこともない。By the way, in general, a ball bearing supercharger requires a cooling function on the turbine side, so it is necessary to flow some oil to the turbine side through the outer surface of the oil film damper 12. However, in the present invention, In the outer peripheral portion of the vibration damping ring 18 arranged on the oil film 11 part, concave grooves 18a extending in the axial direction are arrayed in the circumferential direction, and oil can pass through the concave grooves 18a. It does not impede the distribution of working oil. Further, in the above, for example, when a normal O-ring is arranged in the oil film 11 part instead of the vibration damping ring 18, the same damping effect as when the vibration damping ring 18 is arranged is obtained, In the bearing supercharger, a large amount of dust and foreign matter are present, which may cause sludge to accumulate on the O-ring portion and deteriorate its function. On the other hand, in the present invention, since the concave groove 18a formed on the outer periphery of the vibration damping ring 18 does not hinder the oil flowability as described above, sludge is not accumulated.
【００１２】 なお、本考案は上記実施例のみに限定されるものではなく、本考案の要旨を逸 脱しない範囲内において種々変更を加え得ることは勿論である。It should be noted that the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications can be made without departing from the gist of the present invention.
【００１３】[0013]
以上述べた如く、本考案の玉軸受過給機によれば、軸受車室の内径部とオイル フィルムダンパの外面との間に形成されるオイルフィルム部に、オイルを軸方向 へ流通させ得る凹溝を外周部に有する制振リングを介在配置させた構成を有する ので、オイルフィルムが良好に形成されないような事態が発生しても、制振リン グにより金属同士の接触を防止できて安定したダンピング効果を得ることができ 、外部への振動の伝達を抑えて騒音の低減化を図ることができ、又、制振リング の外周部の凹溝の部分をオイルが流通できることにより、オイルによるタービン 側の冷却機能を阻害することがなく、且つスラッジの堆積も防止できて安定した 機能を長期に亘り発揮することができる、等の優れた機能を発揮する。 As described above, according to the ball bearing supercharger of the present invention, the oil film portion formed between the inner diameter portion of the bearing casing and the outer surface of the oil film damper has a concave portion through which oil can flow in the axial direction. Since it has a structure in which a vibration damping ring having a groove on the outer peripheral portion is interposed, even if a situation in which the oil film is not formed well occurs, the vibration damping ring prevents contact between the metals and stabilizes the operation. A damping effect can be obtained, noise can be reduced by suppressing the transmission of vibration to the outside, and the oil can flow through the concave groove on the outer periphery of the vibration damping ring. It exerts excellent functions such as preventing the cooling function on the side, preventing sludge accumulation, and exhibiting stable functions for a long period of time.
【図１】本考案の玉軸受過給機の一実施例を示す概要図
である。FIG. 1 is a schematic view showing an embodiment of a ball bearing supercharger of the present invention.
【図２】制振リングの配置状態を示す図１の部分拡大図
である。FIG. 2 is a partially enlarged view of FIG. 1 showing an arrangement state of a damping ring.
【図３】制振リングの形状を示す斜視図である。FIG. 3 is a perspective view showing the shape of a damping ring.
【図４】玉軸受過給機の一例を示す概要図である。FIG. 4 is a schematic diagram showing an example of a ball bearing supercharger.
３ 軸受車室 ４ タービン翼車 ５ ブロワ扇車 ６ タービン軸 ９，１０ 玉軸受 １１ オイルフィルム（オイルフィルム部） １２ オイルフィルムダンパ １３ 内径部 １８ 制振リング １８ａ 凹溝 3 Bearing Cabin 4 Turbine Impeller 5 Blower Fan 6 Turbine Shaft 9,10 Ball Bearing 11 Oil Film (Oil Film Part) 12 Oil Film Damper 13 Inner Diameter Part 18 Damping Ring 18a Recessed Groove
Claims (1)
ムダンパにより玉軸受を保持し、該玉軸受にてタービン
軸とブロワ扇車とを連結するタービン軸を回転自在に支
持するようにしてある玉軸受過給機において、上記軸受
車室の内径部とオイルフィルムダンパの外面との間に形
成されるオイルフィルム部に、外周部に軸方向へ延びる
凹溝を形成した制振リングを介在配置してなることを特
徴とする玉軸受過給機。1. A ball bearing is held by an oil film damper arranged in the inner diameter portion of the bearing casing, and the turbine shaft connecting the turbine shaft and the blower fan is rotatably supported by the ball bearing. In a certain ball bearing supercharger, a damping ring having a groove extending axially in the outer peripheral portion is interposed in an oil film portion formed between the inner diameter portion of the bearing casing and the outer surface of the oil film damper. A ball bearing supercharger characterized by being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991066570U JP2530995Y2 (en) | 1991-07-29 | 1991-07-29 | Ball bearing supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991066570U JP2530995Y2 (en) | 1991-07-29 | 1991-07-29 | Ball bearing supercharger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0512632U true JPH0512632U (en) | 1993-02-19 |
| JP2530995Y2 JP2530995Y2 (en) | 1997-04-02 |
Family
ID=13319750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991066570U Expired - Lifetime JP2530995Y2 (en) | 1991-07-29 | 1991-07-29 | Ball bearing supercharger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2530995Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101802U (en) * | 1981-12-29 | 1983-07-11 | ア−ス製薬株式会社 | insect repellent material |
| JP2012036855A (en) * | 2010-08-09 | 2012-02-23 | Ihi Corp | Turbocharger using rolling bearing |
| JP2020139544A (en) * | 2019-02-27 | 2020-09-03 | 三菱重工業株式会社 | Squeeze film damper bearing and rotary machine |
| EP3848599A1 (en) * | 2007-10-31 | 2021-07-14 | Garrett Transportation I Inc. | Anisotropic bearing supports for turbochargers |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7107371B2 (en) | 2018-07-27 | 2022-07-27 | 株式会社Ihi | Bearing structure and turbocharger |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60169158A (en) * | 1984-02-13 | 1985-09-02 | Mitsubishi Electric Corp | Heat radiating device of heat generating element |
| JPS61100869A (en) * | 1984-10-23 | 1986-05-19 | Hitachi Ltd | Inputting/outputting device by picture processing |
| JPS627935A (en) * | 1985-05-30 | 1987-01-14 | テレダイン・インダストリ−ズ・インコ−ポレ−テッド | Turbocharger with lubricating device |
-
1991
- 1991-07-29 JP JP1991066570U patent/JP2530995Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60169158A (en) * | 1984-02-13 | 1985-09-02 | Mitsubishi Electric Corp | Heat radiating device of heat generating element |
| JPS61100869A (en) * | 1984-10-23 | 1986-05-19 | Hitachi Ltd | Inputting/outputting device by picture processing |
| JPS627935A (en) * | 1985-05-30 | 1987-01-14 | テレダイン・インダストリ−ズ・インコ−ポレ−テッド | Turbocharger with lubricating device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58101802U (en) * | 1981-12-29 | 1983-07-11 | ア−ス製薬株式会社 | insect repellent material |
| EP3848599A1 (en) * | 2007-10-31 | 2021-07-14 | Garrett Transportation I Inc. | Anisotropic bearing supports for turbochargers |
| JP2012036855A (en) * | 2010-08-09 | 2012-02-23 | Ihi Corp | Turbocharger using rolling bearing |
| JP2020139544A (en) * | 2019-02-27 | 2020-09-03 | 三菱重工業株式会社 | Squeeze film damper bearing and rotary machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2530995Y2 (en) | 1997-04-02 |
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