JPS6388319A - Method and device for bearing in slide bearing - Google Patents
Method and device for bearing in slide bearingInfo
- Publication number
- JPS6388319A JPS6388319A JP23370586A JP23370586A JPS6388319A JP S6388319 A JPS6388319 A JP S6388319A JP 23370586 A JP23370586 A JP 23370586A JP 23370586 A JP23370586 A JP 23370586A JP S6388319 A JPS6388319 A JP S6388319A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- water
- sliding surface
- vapor
- sliding
- 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
- 238000000034 method Methods 0.000 title claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 5
- 230000007797 corrosion Effects 0.000 claims abstract description 4
- 238000005260 corrosion Methods 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000009835 boiling Methods 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000001050 lubricating effect Effects 0.000 abstract description 3
- 229910010293 ceramic material Inorganic materials 0.000 abstract 2
- 239000000314 lubricant Substances 0.000 abstract 2
- 230000003068 static effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 5
- 238000005461 lubrication Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、滑り軸受に関し、特に高速回伝、高温雰囲気
下で使用される滑り軸受において、当該滑り軸受を軸受
けする方法及び装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a sliding bearing, and particularly to a method and apparatus for bearing a sliding bearing used in high-speed transmission and high-temperature atmospheres.
（従来技術）
一般に、滑り軸受には、潤滑油をｍいた動圧軸受、ある
いは圧お空気などが接触面に送られる脊圧軸受などがあ
った。(Prior Art) In general, sliding bearings include dynamic pressure bearings that are lubricated with lubricating oil, or spinal pressure bearings that send pressurized air or the like to the contact surfaces.
高温雰囲気で使用される排気タービンでは、軸受部分の
温度が高いため、潤滑と冷却の両面から潤滑油を使用し
ている。Exhaust turbines used in high-temperature environments use lubricating oil for both lubrication and cooling because the bearings are at high temperatures.
（発明が解決しようとする問題、α）
しかし、上記従来の！’ｌ＝気タービタービン軸受には
、犬のような欠点があった。(Problem to be solved by the invention, α) However, the above conventional problem! 'l = Qi Turbine turbine bearings had a dog-like drawback.
高温部分の潤滑と冷却とを同時に行う溝道となっている
ため、潤滑、冷ＪＪのためのｔ、η成が複雑となり、装
置の大形化や高コストとなっていた。Since the groove path simultaneously lubricates and cools the high-temperature parts, the t and η configurations for lubrication and cold JJ are complicated, making the device larger and higher in cost.
上記欠７αを改善するものとして、袖及び軸受の両者を
セラミックスで製作し、潤滑を省略した軸受構造も公知
である。このセラミックスで構成した紬及ブ軸受では、
潤滑を行わなくて済む点で有利であるが、セラミックス
同士の直接接触によって摩耗の促進や部分的破壊が生じ
易く、耐久性及び信頼性の面で問題があった。又、潤滑
油による冷却１乍用がないので、周辺部分や 。In order to improve the above deficiency 7α, a bearing structure in which both the sleeve and the bearing are made of ceramics and lubrication is omitted is also known. In the Tsumugi and Bu bearings made of this ceramic,
Although it is advantageous in that it does not require lubrication, direct contact between the ceramics tends to accelerate wear and cause partial destruction, which poses problems in terms of durability and reliability. Also, since there is no need for cooling with lubricating oil, the surrounding areas and
周辺機器への熱の伝達が行なわれ、周辺に熱による問題
を派生させていた。Heat was transferred to peripheral equipment, causing heat-related problems in the surrounding area.
そこで、本発明の目的は、冷ノＪ作用が大きく、かつ；
閏滑作用をも奏すると同時に、耐久性と信頼性の高い軸
受方法及び装置を提供することにある。Therefore, the object of the present invention is to have a large cold J effect and;
It is an object of the present invention to provide a bearing method and device that exhibits a sliding action and is highly durable and reliable.
（間ｍ点を解決するだめの手段）
本発明の特徴とするところは、軸受本体の滑り面に水を
送る送水部と、熱を奪って気化した水蒸気を前記軸受本
体から逃がす蒸気排出部を備え、滑り面を蒸気単体ある
いは蒸気と水の混合体で潤滑させているところにある。(Means for Solving the Problem) The present invention is characterized by a water supply section that sends water to the sliding surface of the bearing body, and a steam discharge section that removes heat and releases vaporized water vapor from the bearing body. The sliding surface is lubricated with either steam alone or a mixture of steam and water.
（実施例） 以下に、本発明の一実施例を図を参照して説明する。(Example) An embodiment of the present invention will be described below with reference to the drawings.
滑り軸受１は自動車等に設置されているターボチャージ
ャーの排気タービンの軸受であり、軸受本体２は、耐熱
、耐食性金属、セラミックスなどからなり、縦断面が円
形の中空状に形成され、内に回転軸３が通されている。The sliding bearing 1 is a bearing for an exhaust turbine of a turbocharger installed in an automobile, etc. The bearing body 2 is made of heat-resistant, corrosion-resistant metal, ceramics, etc., and is formed into a hollow shape with a circular longitudinal section. Shaft 3 is passed through.
ここで、金属としては、・・・・・・・・（具体的な金
属名を入れて下さい）が望ましいが、本発明に使用され
る金属名はこの例に限定されるものではない。軸受本体
２の内面は、滑り而４となっている。Here, it is desirable that the metal be . The inner surface of the bearing body 2 has a sliding surface 4.
本発明の滑り軸受は、後述のように滑り面・１に水を送
り、滑り面４における膜沸騰による蒸気の圧力及び水の
潤滑性を利用して軸受は作用を行うものである。つまり
、滑り軸受１はターボチャージャーの排気タービン等の
ように高温雰囲気にて使用されるものであり、水を膜沸
騰させるだけの熱が軸受部分で生じている。In the sliding bearing of the present invention, as will be described later, water is sent to the sliding surface 1, and the bearing operates by utilizing the pressure of steam caused by film boiling on the sliding surface 4 and the lubricity of the water. In other words, the sliding bearing 1 is used in a high-temperature atmosphere such as in an exhaust turbine of a turbocharger, and heat sufficient to cause film boiling of water is generated in the bearing portion.
本発明はがスタービンのように高速回転軸を有し、且つ
高温雰囲気下で使用される機械・装置の軸受にも適用さ
れる。The present invention is also applicable to bearings for machines and devices that have high-speed rotating shafts and are used in high-temperature atmospheres, such as turbines.
軸受本体２の円周方向には、側部中央から滑り面４に貫
通する孔が複数段けられ、この孔が送水部５となってい
る。この送水部５は外部から滑り面４に図示しない給水
ポンプによって水を圧送する通路である。滑り面４にお
いて水の膜沸騰が生じ、その圧力により粕受は作用が行
なわれる。A plurality of holes penetrating the sliding surface 4 from the center of the side portion are provided in the circumferential direction of the bearing body 2, and these holes serve as a water supply portion 5. The water supply section 5 is a passageway through which water is pumped from the outside to the sliding surface 4 by a water supply pump (not shown). Film boiling of water occurs on the sliding surface 4, and the pressure causes the lees tray to function.
軸受本体２の滑り面４の両端６の間隙は、蒸気排出部６
となっており、ここから水蒸気を逃がすようになってい
る。The gap between both ends 6 of the sliding surface 4 of the bearing body 2 is the steam exhaust part 6
This allows water vapor to escape from here.
本実施例は、次のように作用する。This embodiment operates as follows.
高温雰囲気下にあるため、軸受本体２の滑り面４及び回
転０ＪＪ３が高温となっている。その高温部に送水部５
を介して適宜量の水を供給すると、送水部５の近傍の熱
を奪うと同時に滑り面４で水の膜沸騰を生じ、それによ
る圧力により脊圧軸受としての軸受は作用が行なわれる
。水蒸気は、蒸気排出部６から大気中に逃がされる。Since it is in a high temperature atmosphere, the sliding surface 4 of the bearing body 2 and the rotational speed 0JJ3 are at a high temperature. The water supply section 5 is placed in the high temperature section.
When an appropriate amount of water is supplied through the water supply section 5, heat is removed from the vicinity of the water supply section 5, and at the same time, film boiling of water occurs on the sliding surface 4, and the resulting pressure causes the bearing to function as a spinal pressure bearing. The water vapor is released into the atmosphere from the steam exhaust section 6.
この膜沸騰により、滑り面４の熱を奪い、装置全体の冷
却をも促進するものである。This film boiling removes heat from the sliding surface 4 and promotes cooling of the entire device.
本発明によると、送水量の制御がそれ自身の特性によっ
て自動的に行なわれ、格別の制御装置を必要としないの
で構造が簡単となる。According to the present invention, the water supply amount is automatically controlled based on its own characteristics, and no special control device is required, resulting in a simple structure.
今、滑り面４内に蒸気が少なくなったとすると、滑り面
４の圧力が低下するので、水が滑り面４に入り易くなる
。このため、滑り而４に水のない状態が生じ難い。又、
滑り面・ｔに水が入り過ぎたとすると、水自体は抵抗が
大きいので蒸気排出部６から外部に排出し難い。このた
め、滑り面４内の圧力が高くなって水が送水部５から滑
り面４に入らない。Now, if there is less steam in the sliding surface 4, the pressure on the sliding surface 4 will decrease, making it easier for water to enter the sliding surface 4. Therefore, it is difficult for the slide 4 to be free of water. or,
If too much water enters the sliding surface t, it is difficult to discharge it to the outside from the steam discharge section 6 because the water itself has a large resistance. Therefore, the pressure inside the sliding surface 4 becomes high and water does not enter the sliding surface 4 from the water supply section 5.
以上のように本発明の方法及び装置１こよると、給水量
がある程度自己規制されるので、制御の困難性がないも
のとなっている。As described above, according to the method and apparatus 1 of the present invention, the amount of water supplied is self-regulated to some extent, so there is no difficulty in controlling it.
軸受本体２がセラミックス製のものでは、水分子が高い
潤滑性を有するものとなる。この場合、蒸発して発散す
る水を用いているので、潤滑油のように経年劣化という
ことがない利点がある。When the bearing body 2 is made of ceramics, water molecules have high lubricity. In this case, since water is used that evaporates and dissipates, there is an advantage that it does not deteriorate over time unlike lubricating oil.
又、水蒸気は空気に比較して粘性が小さいので、水量を
適宜設定して圧縮空気によるび圧仙受より低摩擦の滑り
軸受とすることも可能である。Furthermore, since water vapor has a lower viscosity than air, it is possible to appropriately set the amount of water to create a sliding bearing with lower friction than a compressed air bearing.
更に、水が蒸気となる時に冷却作用をも行うので、高速
回転軸や高温雰囲気下における滑り軸受１の焼付きの防
止に効果がある。 尚、上記実施例に本発明は限定
されるものではない。Furthermore, since water also performs a cooling effect when it becomes steam, it is effective in preventing seizure of the sliding bearing 1 on a high-speed rotating shaft or in a high-temperature atmosphere. Note that the present invention is not limited to the above embodiments.
例えば、送水部、蒸気排出部の構造、位置、数は上記実
施例のものに限定されない。For example, the structure, position, and number of the water supply section and steam discharge section are not limited to those of the above embodiment.
又、滑り軸受がツヤ−ナル軸受の他、スラスト軸受でも
よいことは勿論である。Furthermore, it goes without saying that the sliding bearing may be a thrust bearing in addition to a gloss bearing.
水蒸気は大気中に逃がす他に、例えばタービンを回転し
たり、熱交換器に導いたりしてその熱エネルギを回収す
るようにしてもよい。In addition to letting the water vapor escape into the atmosphere, its thermal energy may be recovered by, for example, rotating a turbine or guiding it to a heat exchanger.
（発明の効果）
本発明はの滑り軸受は、滑り面に水を送る送水部と、水
蒸気を逃がす蒸気排出部をイ）ｍえて成り、次に列挙す
る効果を奏する。(Effects of the Invention) The sliding bearing of the present invention includes a) a water supply section that sends water to the sliding surface, and a steam discharge section that releases water vapor, and has the following effects.
■膜沸’ＡＩによる重圧軸受であるが、コンプレッサな
どの高価で場所をとる脊圧発生装置が不要である。■Although it is a heavy pressure bearing using Meifuru'AI, there is no need for an expensive and space-consuming spinal pressure generating device such as a compressor.
■脊圧発生装置がないので故障が少ないものとなる。■Since there is no spinal pressure generator, there are fewer failures.
■水が蒸気となる際に冷却作用があるので、高速、高温
下における軸受の焼付きを防止できるものとなる。■Water has a cooling effect when it turns into steam, so it can prevent bearing seizing at high speeds and high temperatures.
■水を利用しているので、潤滑油に比較し安価である。■Since it uses water, it is cheaper than lubricating oil.
■水を利用しているので、潤滑流体の漏れによる火災、
汚れということが皆無である。■Since water is used, there is no risk of fire caused by leakage of lubricating fluid.
There is no dirt at all.
図は、本発明の一実施例を示す断面図である。 The figure is a sectional view showing one embodiment of the present invention.
Claims (2)
軸受の少なくとも滑り面及び回転軸がセラミックスある
いは耐熱、耐食性金属によって構成され、前記滑り面に
水を送り込み、給送された水が気化して前記滑り面を冷
却すると共に、蒸気単体あるいは蒸気と水との混合体に
よって滑り面を潤滑して成ることを特徴とする滑り軸受
における軸受方法。(1) In a sliding bearing used in a high-temperature atmosphere, at least the sliding surface and rotating shaft of the bearing are made of ceramics or heat-resistant and corrosion-resistant metal, and water is fed to the sliding surface and the fed water is vaporized. 1. A bearing method for a sliding bearing, characterized in that the sliding surface is cooled by using steam alone or a mixture of steam and water to lubricate the sliding surface.
軸受の少なくとも滑り面及び回転軸がセラミックスある
いは耐熱、耐食性金属によって構成され、前記滑り面を
有する軸受本体と、該軸受本体の滑り面に水を送る送水
部と、水蒸気を前記軸受本体から逃がす蒸気排出部を備
えて成ることを特徴とする滑り軸受における軸受装置。(2) In a sliding bearing used in a high-temperature atmosphere, at least the sliding surface and rotating shaft of the bearing are made of ceramics or a heat-resistant, corrosion-resistant metal, and the bearing body having the sliding surface and the sliding surface of the bearing body 1. A bearing device for a sliding bearing, comprising: a water supply section for sending water; and a steam discharge section for discharging water vapor from the bearing body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23370586A JPS6388319A (en) | 1986-10-01 | 1986-10-01 | Method and device for bearing in slide bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23370586A JPS6388319A (en) | 1986-10-01 | 1986-10-01 | Method and device for bearing in slide bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6388319A true JPS6388319A (en) | 1988-04-19 |
| JPH0220853B2 JPH0220853B2 (en) | 1990-05-10 |
Family
ID=16959255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23370586A Granted JPS6388319A (en) | 1986-10-01 | 1986-10-01 | Method and device for bearing in slide bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6388319A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0280218U (en) * | 1988-12-12 | 1990-06-20 | ||
| JP2008261234A (en) * | 2007-04-10 | 2008-10-30 | Osaka Gas Co Ltd | Gas seal mechanism and power system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073123A (en) * | 1983-09-30 | 1985-04-25 | Ebara Corp | Combined sliding member |
-
1986
- 1986-10-01 JP JP23370586A patent/JPS6388319A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6073123A (en) * | 1983-09-30 | 1985-04-25 | Ebara Corp | Combined sliding member |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0280218U (en) * | 1988-12-12 | 1990-06-20 | ||
| JP2008261234A (en) * | 2007-04-10 | 2008-10-30 | Osaka Gas Co Ltd | Gas seal mechanism and power system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0220853B2 (en) | 1990-05-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |