JPS6210486Y2 - - Google Patents
Info
- Publication number
- JPS6210486Y2 JPS6210486Y2 JP1978001871U JP187178U JPS6210486Y2 JP S6210486 Y2 JPS6210486 Y2 JP S6210486Y2 JP 1978001871 U JP1978001871 U JP 1978001871U JP 187178 U JP187178 U JP 187178U JP S6210486 Y2 JPS6210486 Y2 JP S6210486Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- gas
- gas supply
- rotating shaft
- shaft
- 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
- 230000003068 static effect Effects 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 51
- 230000002706 hydrostatic effect Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
【考案の詳細な説明】 本考案は静圧気体軸受の改善に関する。[Detailed explanation of the idea] The present invention relates to improvements in hydrostatic gas bearings.
従来のこの種静圧気体軸受の構造を第1図に示
す。同図において、1は回転軸、以下軸と略称す
る。2はケーシング、3は軸受、4はOリング、
5はガス供給口、6は静圧気体軸受給気孔であ
る。供給ガスは、矢印Aのように供給口5より導
入され、軸受隙間内を通り、矢印Wのように周囲
に吐出される。 The structure of a conventional hydrostatic gas bearing of this type is shown in FIG. In the figure, reference numeral 1 denotes a rotation axis, hereinafter abbreviated as axis. 2 is the casing, 3 is the bearing, 4 is the O-ring,
5 is a gas supply port, and 6 is a static pressure gas bearing supply hole. The supply gas is introduced from the supply port 5 as indicated by arrow A, passes through the bearing gap, and is discharged to the surroundings as indicated by arrow W.
上記構造は一般の静圧気体軸受の例を示すもの
であるが、これには次の欠点がある。 The above structure is an example of a general hydrostatic gas bearing, but this has the following drawbacks.
(1) 高温及び極低温雰囲気中等では、Oリング4
の使用が不可能である。(1) In high-temperature or extremely low-temperature atmospheres, O-ring 4
is not possible.
(2) また、Oリング4にかわる密封型式をとつた
としても、構造が複雑となる。(2) Furthermore, even if a sealing type is used instead of the O-ring 4, the structure will be complicated.
上記(1),(2)の理由から、軸受側からのガス供給
が困難な場合がある。 For reasons (1) and (2) above, it may be difficult to supply gas from the bearing side.
本考案の目的は上記の点に着目し、軸受部に供
給ガスシール機構が不要なガス給気構造を提供す
ることであり、その特徴とするところは、回転軸
と同回転軸を囲繞し内周側に軸受面を形成した軸
受ケーシングとの間に圧力ガスを供給する静圧軸
受において、圧力ガス供給源に連絡し上記回転軸
の軸心上に位置するようにガス供給用ホルダーを
介して上記軸受ケーシングの一端側に固定される
ガス供給用フランジと、上記回転軸にその軸心と
同心で該ガス供給用フランジの開孔端に対向する
側より所定深さまで穿設され上記ガス供給用フラ
ンジからの圧力ガスを導く連絡孔と、一端を同連
絡孔に連通し他端を上記軸受ケーシングの軸受面
と対向する回転軸表面に開孔するように放射状に
複数穿設された給気孔とを有してなることであ
る。 The purpose of this invention is to focus on the above points and provide a gas supply structure that does not require a supply gas seal mechanism for the bearing. In a static pressure bearing that supplies pressurized gas between a bearing casing that has a bearing surface formed on the circumferential side, a gas supply holder that connects to a pressure gas supply source and is located on the axis of the rotating shaft is used. A gas supply flange fixed to one end of the bearing casing, and a gas supply flange drilled in the rotating shaft to a predetermined depth from the side opposite to the open end of the gas supply flange concentrically with the rotating shaft. a communication hole for guiding pressure gas from the flange; and a plurality of air supply holes drilled radially such that one end communicates with the communication hole and the other end opens on the rotating shaft surface facing the bearing surface of the bearing casing. It is to have the following.
本考案はサーマルセパレータに適用できる。 The present invention can be applied to thermal separators.
以下図面を参照して本考案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2図は本考案による1実施例であり、本考案
の軸側給気式静圧気体軸受の回転性能をみるため
の試験装置を示す断面図である。 FIG. 2 is an embodiment of the present invention, and is a sectional view showing a test device for testing the rotational performance of the shaft-side air supply type static pressure gas bearing of the present invention.
図において、1は軸、7は同軸1の1端側より
所定深さまで同軸1と共心に穿設された連絡孔で
ある。連絡孔7は軸の他端側(出口側)まで貫通
せず盲になつている。 In the figure, 1 is a shaft, and 7 is a communicating hole drilled concentrically with the coaxial 1 to a predetermined depth from one end side of the coaxial 1. The communication hole 7 does not penetrate to the other end (outlet side) of the shaft and is blind.
10は軸受ケーシングで、内周面は軸受面に形
成されている。なお、軸受を別体に形成し、ケー
シングに固定してもよい。 Reference numeral 10 denotes a bearing casing, the inner peripheral surface of which is formed as a bearing surface. Note that the bearing may be formed separately and fixed to the casing.
8は連絡孔7より周方向に等間隔で放射状に穿
設され、軸受ケーシング10の軸受面に対向する
軸1の表面に開口する複数個の静圧気体軸受用ガ
スの給気孔である。 Reference numeral 8 denotes a plurality of static pressure gas bearing gas supply holes which are radially bored at equal intervals in the circumferential direction from the communication hole 7 and open on the surface of the shaft 1 facing the bearing surface of the bearing casing 10.
11はガス供給用ホルダー、12はガス供給用
フランジ、13は接続フランジで、圧力ガスの供
給源に接続し連絡孔7に圧力ガスを供給する。 11 is a gas supply holder, 12 is a gas supply flange, and 13 is a connection flange, which is connected to a pressure gas supply source and supplies pressure gas to the communicating hole 7.
9はタービンブレード、14は静圧気体スラス
ト軸受、19は静圧気体スラスト軸受用ガスの給
気孔、15は静圧気体スラスト軸受押えフランジ
である。なお、16,17,18はガスケツトで
ある。 9 is a turbine blade, 14 is a hydrostatic gas thrust bearing, 19 is a gas supply hole for the hydrostatic gas thrust bearing, and 15 is a hydrostatic gas thrust bearing holding flange. Note that 16, 17, and 18 are gaskets.
上記構成の場合の作用について述べる。 The operation in the case of the above configuration will be described.
矢印Cで示す軸受部供給ガスは、接続フランジ
13より送られ、ガス供給フランジ12を通して
軸1の連絡孔7内に送られ、静圧気体軸受用ガス
の給気孔8より軸受ケーシング10の内周面に噴
出する。 The bearing supply gas indicated by arrow C is sent from the connection flange 13, through the gas supply flange 12, into the communication hole 7 of the shaft 1, and from the static pressure gas bearing gas supply hole 8 to the inner circumference of the bearing casing 10. Squirt onto the surface.
矢印Bで示す供給ガスは、軸1に加工されたタ
ービンブレード9に吹きつけ軸1に回転を与える
ことができる。 The supply gas indicated by arrow B can be blown onto the turbine blades 9 processed on the shaft 1 to impart rotation to the shaft 1.
また矢印Dで示すように、静圧気体スラスト軸
受用ガスを送り、供給ガスCの圧力により生ずる
軸スラストに対し負荷作用を与える。 Further, as shown by arrow D, static pressure gas for the thrust bearing is sent to apply a load to the shaft thrust generated by the pressure of the supply gas C.
これら供給ガスB,C,Dは、矢印X,Y,Z
で示すように排出される。 These supply gases B, C, and D are indicated by arrows X, Y, and Z.
It is discharged as shown in .
サーマルセパレータに応用した例を第3図に示
し、詳細に説明する。第2図のタービンブレード
9の部分にノズルを設け、ここからケーシングに
取付けた膨張管に混合ガスを噴射し、気液分離を
行うものである。第2図と同一部分は説明を省略
する。 An example of application to a thermal separator is shown in FIG. 3 and will be described in detail. A nozzle is provided at the turbine blade 9 in FIG. 2, and a mixed gas is injected from the nozzle into an expansion tube attached to a casing to perform gas-liquid separation. Description of the same parts as in FIG. 2 will be omitted.
混合ガスCが軸1の1端側より連絡孔7を通し
て供給され、軸1の他端に加工されたノズル20
からケーシングに円周方向に複数個加工された膨
張管21に向けて断熱噴流にて矢印Kのように噴
出する。ノズル20は噴射による接線方向の反動
力で軸1に回転力が付与できるように、軸1の中
心より半径方向に対し傾きを有している。 The mixed gas C is supplied from one end of the shaft 1 through the communication hole 7, and a nozzle 20 is machined at the other end of the shaft 1.
The gas is ejected from the casing in an adiabatic jet direction as shown by arrow K toward the expansion tubes 21 which are formed in a plurality of pieces in the circumferential direction of the casing. The nozzle 20 has an inclination in the radial direction from the center of the shaft 1 so that a rotational force can be applied to the shaft 1 by the reaction force in the tangential direction due to the injection.
混合ガスCは断熱膨張し低温になり液化温度が
この冷却された温度より高いガスが液化し、気液
分離される。 The mixed gas C expands adiabatically and becomes low temperature, and the gas whose liquefaction temperature is higher than the cooled temperature is liquefied and separated into gas and liquid.
上述のように本考案による場合は、軸受部の供
給ガスの密封機構が不要となり、軸受部の構造が
コンパクトとなる効果がある。 As described above, according to the present invention, there is no need for a sealing mechanism for the gas supplied to the bearing, and the structure of the bearing can be made compact.
第1図は従来の静圧気体軸受を示す断面図、第
2図は本考案による1実施例であり、本考案の軸
側給気式静圧気体軸受の回転性能をみるための試
験装置を示す断面図、第3図aはサーマルセパレ
ータに応用した例を示す断面図、第3図bは第3
図aのH−H矢視断面図である。
1……軸、7……連絡孔、8……静圧気体軸受
用ガスの給気孔、9……タービンブレード、10
……軸受ケーシング、11……ガス供給用ホルダ
ー、12……ガス供給用フランジ、13……接続
フランジ、14……静圧気体スラスト軸受、15
……静圧気体スラスト軸受押えフランジ、19…
…静圧気体スラスト軸受用ガスの給気孔。
Fig. 1 is a sectional view showing a conventional hydrostatic gas bearing, and Fig. 2 is an embodiment of the present invention. Fig. 3a is a sectional view showing an example of application to a thermal separator, Fig. 3b is a sectional view of the third
It is a sectional view taken along the line H-H in Figure a. DESCRIPTION OF SYMBOLS 1... Shaft, 7... Communication hole, 8... Hydrostatic gas bearing gas supply hole, 9... Turbine blade, 10
... Bearing casing, 11 ... Gas supply holder, 12 ... Gas supply flange, 13 ... Connection flange, 14 ... Hydrostatic gas thrust bearing, 15
...Static pressure gas thrust bearing holding flange, 19...
...Gas supply hole for static pressure gas thrust bearings.
Claims (1)
成した軸受ケーシングとの間に圧力ガスを供給す
る静圧軸受において、圧力ガス供給源に連絡し上
記回転軸の軸心上に位置するようにガス供給用ホ
ルダーを介して上記軸受ケーシングの一端側に固
定されるガス供給用フランジと、上記回転軸にそ
の軸心と同心で該ガス供給用フランジの開孔端に
対向する側より所定深さまで穿設され上記ガス供
給用フランジからの圧力ガスを導く連絡孔と、一
端を同連絡孔に連通し他端を上記軸受ケーシング
の軸受面と対向する回転軸表面に開孔するように
放射状に複数穿設された給気孔とを有してなるこ
とを特徴とする軸側給気式静圧気体軸受。 In a static pressure bearing that supplies pressurized gas between a rotating shaft and a bearing casing that surrounds the rotating shaft and has a bearing surface formed on the inner circumference, a bearing connected to a pressure gas supply source and located on the axis of the rotating shaft. a gas supply flange fixed to one end side of the bearing casing via a gas supply holder, and a gas supply flange attached to the rotating shaft from a side facing the open end of the gas supply flange concentrically with the axis of the rotating shaft. A communicating hole is bored to a predetermined depth and guides the pressure gas from the gas supply flange, and one end is connected to the communicating hole and the other end is opened on the rotating shaft surface facing the bearing surface of the bearing casing. A shaft-side air supply type static pressure gas bearing characterized by having a plurality of air supply holes drilled radially.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978001871U JPS6210486Y2 (en) | 1978-01-13 | 1978-01-13 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978001871U JPS6210486Y2 (en) | 1978-01-13 | 1978-01-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54106445U JPS54106445U (en) | 1979-07-26 |
JPS6210486Y2 true JPS6210486Y2 (en) | 1987-03-12 |
Family
ID=28804407
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1978001871U Expired JPS6210486Y2 (en) | 1978-01-13 | 1978-01-13 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6210486Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5972316U (en) * | 1982-11-09 | 1984-05-16 | 日本電子株式会社 | hydrostatic bearing |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4989032A (en) * | 1972-12-29 | 1974-08-26 |
-
1978
- 1978-01-13 JP JP1978001871U patent/JPS6210486Y2/ja not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4989032A (en) * | 1972-12-29 | 1974-08-26 |
Also Published As
Publication number | Publication date |
---|---|
JPS54106445U (en) | 1979-07-26 |
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