JPS594565B2 - bearing device - Google Patents
bearing deviceInfo
- Publication number
- JPS594565B2 JPS594565B2 JP336778A JP336778A JPS594565B2 JP S594565 B2 JPS594565 B2 JP S594565B2 JP 336778 A JP336778 A JP 336778A JP 336778 A JP336778 A JP 336778A JP S594565 B2 JPS594565 B2 JP S594565B2
- Authority
- JP
- Japan
- Prior art keywords
- partition plate
- bearing
- oil
- rotating body
- oil supply
- 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.)
- Expired
Links
- 238000005192 partition Methods 0.000 claims description 43
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 239000003921 oil Substances 0.000 description 29
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Description
【発明の詳細な説明】
本発明は回転体の振動を抑制する軸受装置の改善に関す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a bearing device that suppresses vibrations of a rotating body.
従来のこの種軸受装置を第１図及び第２図に示す。A conventional bearing device of this type is shown in FIGS. 1 and 2.
図において、０１は給油孔、Ｏ２は給油溝、口３は仕切
板、０４は球軸受、０５は軸受ハウジング、０６、０７
は仕切板支え、ＰＩＪち仕切板０３の支承片、０８は回
転体（回転軸）、０９は軸受台、０１０は仕切板０３と
軸受台０９との間隙、０１１は仕切板０３と軸受ハウジ
ング０５との間隙、０１２は給油の漏れを防ぐシールリ
ングであろ。In the figure, 01 is the oil supply hole, O2 is the oil supply groove, port 3 is the partition plate, 04 is the ball bearing, 05 is the bearing housing, 06, 07
is the partition plate support, the support piece of the PIJ partition plate 03, 08 is the rotating body (rotating shaft), 09 is the bearing stand, 010 is the gap between the partition plate 03 and the bearing stand 09, 011 is the partition plate 03 and the bearing housing 05 The gap 012 is probably a seal ring to prevent oil leakage.
回転体０８に球軸受０４が取付けられ、その球軸受０４
は軸受ハウジング０５によつて囲繞されかつ支持されて
いる。軸受ハウジング０５の外周には仕切板支え０６を
介して間隙旧１を隔てて仕切板０３が取付けら５ れて
いて、同仕切板口３の外周は、仕切板支えＯＴを介して
間隙旧０を隔てて軸受台０９によつて支持されている。A ball bearing 04 is attached to the rotating body 08, and the ball bearing 04
is surrounded and supported by a bearing housing 05. A partition plate 03 is attached to the outer periphery of the bearing housing 05 via a partition plate support 06 with a gap 1 between them. It is supported by a bearing pedestal 09 with .
給油孔旧は軸受台０９に設けられ、給油溝Ｏ２は軸受台
０９の内周面に設けられている。The oil supply hole O2 is provided in the bearing pedestal 09, and the oil supply groove O2 is provided in the inner peripheral surface of the bearing pedestal 09.
００３ａは仕切板０３の周面に設けられた複数個の貫通
油膜である。003a is a plurality of penetrating oil films provided on the peripheral surface of the partition plate 03.
給油孔０１より供給された油は、給油溝Ｏ２を通つて仕
切板０３と軸受台０９との間隙旧０、及び仕切板０３の
貫通油膜０３ａを通り仕切板５０３と軸受ハウジング０
５との間隙口１１とで、仕切板０３を挾んで２層の油膜
を形成し、回転体０８から伝達される振動をスクイズ効
果によつて減衰させる。The oil supplied from the oil supply hole 01 passes through the oil supply groove O2, the gap between the partition plate 03 and the bearing pedestal 09, and the penetrating oil film 03a of the partition plate 03, and then passes through the partition plate 503 and the bearing housing 0.
A two-layer oil film is formed between the partition plate 03 and the gap opening 11 between the partition plate 03 and the rotating body 08, thereby damping vibrations transmitted from the rotating body 08 by a squeezing effect.
なお、上記２層の油膜が形成される区画はシールリング
０１２により油室になつてい・０ る。また、仕切板０
３は仕切板支え０６、０７によつて軸受台０９と軸受ハ
ウジング０５とに連結されているが、この仕切板支え０
６、０１によつて軸受ハウジング０５を中心位置に保持
する機能を２５そなえている。The section where the two layers of oil film are formed is turned into an oil chamber by a seal ring 012. Also, partition plate 0
3 is connected to the bearing stand 09 and the bearing housing 05 by partition plate supports 06 and 07, but this partition plate support 0
6 and 01 provide a function 25 for holding the bearing housing 05 at the center position.
仕切板０３は弾性板で形成されているので、軸受・・ウ
ジング０５の動きに伴つて半径方向または軸心方向にた
わみ、スクイズ効果が発揮される。Since the partition plate 03 is made of an elastic plate, it bends in the radial direction or the axial direction with the movement of the bearing 05, producing a squeezing effect.
しかし、上記の構造では、回転体０８の軸受部３０分の
振動が小さい振動形（モード）については、振動の減衰
能が小さい。本発明の目的は上記の点に着目し、回転体
における振動減衰能を向上できる軸受装置を提供するこ
とであり、その特徴とするところは、仕切板に３５付加
重量を取付けるようにしたことであろ。However, in the above structure, the vibration damping ability is small for vibration types (modes) in which the vibration of the bearing portion 30 of the rotating body 08 is small. The purpose of the present invention is to focus on the above-mentioned points and provide a bearing device that can improve the vibration damping ability of a rotating body. Aro.
即ち、仕切板の重量を可変とすることにより、振動数の
調整を行い、ダイナミックダンパとして作用させるよう
にしたことである。本発明は過給機、小型ガスタービン
、その他の回転体に広く適用できる。That is, by making the weight of the partition plate variable, the frequency of vibration can be adjusted and it can act as a dynamic damper. The present invention can be widely applied to superchargers, small gas turbines, and other rotating bodies.
以下図面を参照して本発明による実施例につき説明する
。Embodiments of the present invention will be described below with reference to the drawings.
第３図は本発明による１実施例の装置を示す断面図、第
４図は第３図の１Ｖ−１Ｖ矢視断面図である。FIG. 3 is a sectional view showing an embodiment of the apparatus according to the present invention, and FIG. 4 is a sectional view taken along the line 1V-1V in FIG.
図に訃いて、１は給油孔、２は給油溝、３は仕切板、３
ａは貫通油孔、３ｂは付加重量１２取付用ボルト、４は
球軸受、５は軸受ハウジング、６，１は仕切板支え、８
は回転体（回転軸）、９は軸受台、１０は仕切板３と軸
受台９との間隙、１１は仕切板３と軸受ハウジング５と
の間隙、１３，１４は給油の漏れを防ぐシールリング、
１５は付加重量１２取付用ナツトである。回転体８に球
軸受４が取付けられ、その球軸受４は軸受ハウジング５
によつて囲繞され、かつ支持されている。In the figure, 1 is the oil supply hole, 2 is the oil supply groove, 3 is the partition plate, 3
a is a through oil hole, 3b is an additional weight 12 mounting bolt, 4 is a ball bearing, 5 is a bearing housing, 6, 1 is a partition plate support, 8
is a rotating body (rotating shaft), 9 is a bearing stand, 10 is a gap between the partition plate 3 and the bearing stand 9, 11 is a gap between the partition plate 3 and the bearing housing 5, and 13 and 14 are seal rings to prevent oil leakage. ,
15 is a nut for attaching the additional weight 12. A ball bearing 4 is attached to a rotating body 8, and the ball bearing 4 is attached to a bearing housing 5.
surrounded and supported by
軸受ハウジング５の外周には仕切板支え６を介して間隙
１１を隔てて仕切板３が取付けられていて、仕切板３の
外周は、仕切板支え７を介して間隙１０を隔てて軸受台
９によつて支持されている。A partition plate 3 is attached to the outer periphery of the bearing housing 5 with a gap 11 in between via a partition plate support 6, and a bearing stand 9 is attached to the outer periphery of the partition plate 3 with a gap 10 in between via a partition plate support 7. Supported by.
仕切板３には全周にわたつて環状の付加重量１２が取付
ボルト３ｂ、取付用ナット１５によつて取付けられてい
る。給油孔１は軸受台９に設けられ、給油溝２は軸受台
９の内周面に設けられている。An annular additional weight 12 is attached to the partition plate 3 over its entire circumference using attachment bolts 3b and attachment nuts 15. The oil supply hole 1 is provided in the bearing pedestal 9, and the oil supply groove 2 is provided in the inner peripheral surface of the bearing pedestal 9.
３ａは仕切板３の周面に設けられた複数個の貫通油孔で
ある。Reference numeral 3a denotes a plurality of through oil holes provided on the circumferential surface of the partition plate 3.
仕切板３の延長上に付加重量を取付けた以外は従米のも
のと同様である。It is the same as the one in Jumei except that additional weight is attached to the extension of the partition plate 3.
上記構成の場合の作用、効果について述べる。The functions and effects of the above configuration will be described.
回転体８が回転することによつて、仕切板３と軸受ハウ
ジング５及び軸受台９との間隙１１，１０には油膜が形
成され、回転体が振動すると間隙１０及び１１の油膜の
スクイズ作用によつて圧力が発生し、油膜が動的なばね
と減衰器として作用する。この油膜と仕切板３及び付加
重量１２が１つの付加振動系を形成している。この付加
振動系の固有振動数は、付加重量１２を調整することに
より任意に変更可能である。ところで、ダイナミツクダ
ンパの理論により、回転体と軸受支持部によつて形成さ
れる主振動系に上記付加振動系を取付け、その固有振動
数の調整を行えば、主振動系の振動を減少させることが
できる。As the rotating body 8 rotates, an oil film is formed in the gaps 11 and 10 between the partition plate 3, the bearing housing 5, and the bearing stand 9, and when the rotating body vibrates, the oil film in the gaps 10 and 11 is squeezed. Pressure is thus created and the oil film acts as a dynamic spring and damper. This oil film, the partition plate 3, and the additional weight 12 form one additional vibration system. The natural frequency of this additional vibration system can be changed arbitrarily by adjusting the additional weight 12. By the way, according to the theory of dynamic dampers, if the above-mentioned additional vibration system is attached to the main vibration system formed by the rotating body and the bearing support and its natural frequency is adjusted, the vibration of the main vibration system can be reduced. be able to.
この付加重量１２の重量はあらかじめ実験等によつて求
めて訃けばよい。The weight of this additional weight 12 may be determined in advance through experiments or the like.
上記の効果を第５図に示す振動モデルに対応させると、
回転体８が主質量Ｍ，、仕切板３の貫通油孔３ａを介し
て出人する潤滑油の減衰作用が減衰器ｃ、仕切板３を挟
んで発生する油膜の圧力がばねＫ２、仕切板３及び付加
重量１２が補助質量Ｍ２にそれぞれ対応する。Corresponding the above effect to the vibration model shown in Figure 5, we get
The rotating body 8 has a main mass M, the damping effect of the lubricating oil that enters through the oil hole 3a of the partition plate 3 is the damper c, the pressure of the oil film generated across the partition plate 3 is the spring K2, and the partition plate 3 and additional weight 12 correspond to the auxiliary mass M2, respectively.
一般に主質量ｍ１が、ばねｋ１によつて種々の運動をし
ていても、補助振動系を構成する上記補助質量Ｍ２、ば
ねＫ２、減衰器ｃのそれぞれをうまく定めて、主質量Ｍ
，の振動数に同調させれば、主質量Ｍ，の振動が殆んど
零に近くなることはダイナミツクダンパ理論といわれ周
知のことである。In general, even if the main mass m1 is making various movements due to the spring k1, the main mass M can be adjusted by properly determining each of the auxiliary mass M2, spring K2, and damper c that constitute the auxiliary vibration system.
It is known as the dynamic damper theory that if the main mass M is tuned to the frequency of vibration, the vibration of the main mass M becomes almost zero.
即ち、仕切板の重量を可変とすることにより振動数の調
整を行い、回転体に｝ける振動減衰能を向上させること
ができる。That is, by making the weight of the partition plate variable, the vibration frequency can be adjusted and the vibration damping ability of the rotating body can be improved.
第１図は従来の軸受装置を示す断面図、第２図は第１図
の１１−矢視断面図、第３図は本発明による１実施例の
軸受装置を示す断面図、第４図は第３図の１Ｖ−１Ｖ矢
視断面図、第５図は振動モデルを示す説明図である。
１・・・・・・給油孔、２・・・・・・給油溝、３・・
・・・・仕切板、３ａ・・・・・・貫通油孔、３ｂ・・
・・・・ボルト、４・・・・・・球軸受、５・・・・・
・軸受ハウジング、６，７・・・・・・仕切板支え、８
・・・・・・回転体、９・・・・・・軸受台、１０・・
・・・・仕切板３と軸受台９との間隙、１１・・・・・
・仕切板３と軸受ハウジング５との間隙、１２・・・・
・・仕切板３の付加重量、１３，１４・・・・・・シー
ルリング、１５・・・・・・ナツト。FIG. 1 is a sectional view showing a conventional bearing device, FIG. 2 is a sectional view taken along the line 11 in FIG. FIG. 3 is a sectional view taken along the line 1V-1V, and FIG. 5 is an explanatory diagram showing a vibration model. 1... Oil supply hole, 2... Oil supply groove, 3...
...Partition plate, 3a...Through oil hole, 3b...
...Bolt, 4...Ball bearing, 5...
・Bearing housing, 6, 7... Partition plate support, 8
...Rotating body, 9...Bearing stand, 10...
...Gap between partition plate 3 and bearing stand 9, 11...
・Gap between partition plate 3 and bearing housing 5, 12...
...Additional weight of partition plate 3, 13, 14... Seal ring, 15... Nut.
Claims (1)
給源に連絡する給油孔を設けた軸受台の内周面との間に
それぞれの側に支承片を介在させて挾持され複数個の貫
通油孔を設けた筒状の仕切板と、上記軸受台の給油孔よ
りの供給油が充填されて上記仕切板の内外両面に油膜が
形成される油室とを有する軸受装置において、上記仕切
板を上記油室より軸方向に両側に延伸させ両端部にそれ
ぞれ環状の付加重量を装着したことを特徴とする軸受装
置。1 A plurality of bearings are sandwiched between the outer peripheral surface of a bearing housing into which a rotating body is inserted and the inner peripheral surface of a bearing stand provided with an oil supply hole communicating with an oil supply source, with supporting pieces interposed on each side. In a bearing device having a cylindrical partition plate provided with a through-oil hole, and an oil chamber filled with oil supplied from the oil supply hole of the bearing stand to form an oil film on both the inner and outer surfaces of the partition plate, the partition A bearing device characterized in that a plate extends from the oil chamber to both sides in the axial direction, and annular additional weights are attached to each end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP336778A JPS594565B2 (en) | 1978-01-18 | 1978-01-18 | bearing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP336778A JPS594565B2 (en) | 1978-01-18 | 1978-01-18 | bearing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5496650A JPS5496650A (en) | 1979-07-31 |
| JPS594565B2 true JPS594565B2 (en) | 1984-01-30 |
Family
ID=11555364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP336778A Expired JPS594565B2 (en) | 1978-01-18 | 1978-01-18 | bearing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS594565B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6279492A (en) * | 1985-10-03 | 1987-04-11 | 日本ケミコン株式会社 | Display unit |
-
1978
- 1978-01-18 JP JP336778A patent/JPS594565B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6279492A (en) * | 1985-10-03 | 1987-04-11 | 日本ケミコン株式会社 | Display unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5496650A (en) | 1979-07-31 |
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