JPH0450721U - - Google Patents
Info
- Publication number
- JPH0450721U JPH0450721U JP9312390U JP9312390U JPH0450721U JP H0450721 U JPH0450721 U JP H0450721U JP 9312390 U JP9312390 U JP 9312390U JP 9312390 U JP9312390 U JP 9312390U JP H0450721 U JPH0450721 U JP H0450721U
- Authority
- JP
- Japan
- Prior art keywords
- discharge oil
- discharge
- oil
- bearing
- pockets
- 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
- 229910000897 Babbitt (metal) Inorganic materials 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
第１図はこの考案の一実施例による回転軸の流
体軸受装置を示す要部の縦断面図、第２図は第１
図の−線に沿う軸受金部分の横断説明図、第
３図は従来の回転軸の流体軸受装置を示す概略構
成図、第５図は同軸軸受金の排出油孔部分の横断
面説明図である。
５……油ポンプ、１２……油タンク、２０……
軸受ハウジング、２１，２２……軸受金、２３…
…回転軸、２６……ランド部、２７……ポケツト
、２８……排出油孔、２９……小ランド部、３０
……絞り、３１……供給油路、３７……排出通路
、３８……環状の排出油路、３９……排出流路、
４０……電磁弁、４１……取付孔、４２……ソレ
ノイドコイル、４３……プランジヤ、４４……弁
座、４５……弁体、４６……ばね、４７……蓋、
４８……排出油路、４９……排出流路。
FIG. 1 is a longitudinal cross-sectional view of the main parts of a hydrodynamic bearing device for a rotating shaft according to an embodiment of this invention, and FIG.
Fig. 3 is a schematic configuration diagram showing a conventional hydrodynamic bearing device for a rotary shaft, and Fig. 5 is a cross-sectional explanatory view of a drain oil hole portion of a coaxial bearing metal. be. 5...Oil pump, 12...Oil tank, 20...
Bearing housing, 21, 22...Bearing metal, 23...
...Rotating shaft, 26...Land portion, 27...Pocket, 28...Drain oil hole, 29...Small land portion, 30
... Throttle, 31... Supply oil passage, 37... Discharge passage, 38... Annular discharge oil passage, 39... Discharge passage,
40... Solenoid valve, 41... Mounting hole, 42... Solenoid coil, 43... Plunger, 44... Valve seat, 45... Valve body, 46... Spring, 47... Lid,
48...Discharge oil path, 49...Discharge flow path.
Claims (1)
定し、軸受金内周面の円周方向の複数個所にポケ
ツトを形成し、これらのポケツトに絞りを介して
軸受油を供給する供給油路に油ポンプを設け、前
記ポケツト内にそれぞれ設けた排出油孔を軸受金
の外周と前記ハウジングとの間に設けた環状の排
出油路に接続し、排出油路の上部を大気中に開口
する排出流路に接続し、排出流路を油タンクに連
通させた回転軸の流体軸受装置において、前記排
出油孔のうち、回転軸の負荷方向に位置する排出
油孔以外の排出油孔に、通常運転時には、排出油
孔を開き、停電時には排出油孔を閉塞する電磁弁
をそれぞれ設けたことを特徴とする回転軸の流体
軸受装置。 A bearing metal that supports a rotating shaft is fixed to a bearing housing, pockets are formed at multiple locations in the circumferential direction on the inner circumferential surface of the bearing metal, and oil is supplied to a supply oil passage that supplies bearing oil to these pockets through a restriction. A pump is provided, and discharge oil holes provided in each of the pockets are connected to an annular discharge oil passage provided between the outer periphery of the bearing metal and the housing, and the upper part of the discharge oil passage is opened to the atmosphere. In a hydrodynamic bearing device for a rotary shaft that is connected to a flow path and has a discharge flow path communicated with an oil tank, the discharge oil holes other than the discharge oil holes located in the load direction of the rotary shaft, among the discharge oil holes, are connected during normal operation. A hydrodynamic bearing device for a rotating shaft, characterized in that it is provided with a solenoid valve that opens a discharge oil hole at times and closes the discharge oil hole during a power outage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9312390U JPH0450721U (en) | 1990-09-06 | 1990-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9312390U JPH0450721U (en) | 1990-09-06 | 1990-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0450721U true JPH0450721U (en) | 1992-04-28 |
Family
ID=31830097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9312390U Pending JPH0450721U (en) | 1990-09-06 | 1990-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0450721U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12270432B2 (en) | 2021-01-20 | 2025-04-08 | Mitsubishi Generator Co., Ltd. | Journal bearing and rotating machine |
-
1990
- 1990-09-06 JP JP9312390U patent/JPH0450721U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12270432B2 (en) | 2021-01-20 | 2025-04-08 | Mitsubishi Generator Co., Ltd. | Journal bearing and rotating machine |
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