JP2000220638A - Porous bearing - Google Patents
Porous bearingInfo
- Publication number
- JP2000220638A JP2000220638A JP11021709A JP2170999A JP2000220638A JP 2000220638 A JP2000220638 A JP 2000220638A JP 11021709 A JP11021709 A JP 11021709A JP 2170999 A JP2170999 A JP 2170999A JP 2000220638 A JP2000220638 A JP 2000220638A
- Authority
- JP
- Japan
- Prior art keywords
- housing
- porous
- porous body
- bearing
- adhesive
- 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
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、多孔質材料を用い
た多孔質軸受に係り、特にこの多孔質軸受を構成するハ
ウジングに対する多孔質材料製の多孔体の取り付け方に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a porous bearing using a porous material, and more particularly, to a method of attaching a porous material made of a porous material to a housing constituting the porous bearing.
【０００２】[0002]
【従来の技術】多孔質材料を用いた多孔質軸受におい
て、軸受面を形成し、この軸受面から空気等の気体を噴
射させて被支持部材を支持する多孔質材料製の多孔体
と、この多孔体を支持するハウジングとは、互いに例え
ば０．５ＭＰａ程度の給気圧に耐え得る強度で固着さ
れ、かつ多孔体とハウジングとの間から気体が洩れない
ように、シールをする必要がある。特に、このシールが
不完全であると、多孔体中を通る気体の透過量を正確に
制御することができず、所定の軸受剛性を得ることがで
きないため、確実にシールをする必要がある。2. Description of the Related Art In a porous bearing using a porous material, a bearing surface is formed, a gas such as air is jetted from the bearing surface to support a member to be supported. The housing supporting the porous body needs to be fixed to each other with a strength capable of withstanding a supply pressure of, for example, about 0.5 MPa, and sealed to prevent gas from leaking from between the porous body and the housing. In particular, if the seal is imperfect, the amount of gas permeation through the porous body cannot be accurately controlled, and a predetermined bearing rigidity cannot be obtained.
【０００３】上記の固着強度とシールとの関係から従来
は、多孔体をハウジングに固着するのに、焼嵌め、鋳ぐ
るみ又はねじ止めなどが用いられていた。焼嵌めは、工
作機械の主軸用軸受に実用化されており、円筒状の多孔
質グラファイトを鋼製のハウジングに焼嵌めしている。
鋳ぐるみは、直線案内用のスライダに実用化されてお
り、ポリビニルホルマール（ＰＶＦ）などからなる多孔
質フォームにセラミック成形用スラリーを含浸させた
後、同じセラミック成形用スラリーで上記多孔質フォー
ムを鋳ぐるみ成形している（特開平６ー２９７４２１号
公報）。Conventionally, in order to fix the porous body to the housing, shrink-fitting, casting, screwing, or the like has been used in view of the relationship between the fixing strength and the seal. Shrink fitting has been put to practical use in bearings for main shafts of machine tools, and cylindrical porous graphite is shrink-fitted into a steel housing.
Cast-in toys are used in sliders for linear guidance. A porous foam made of polyvinyl formal (PVF) or the like is impregnated with a slurry for ceramic molding, and then the porous foam is cast with the same slurry for ceramic molding. It is formed as a whole (Japanese Patent Application Laid-Open No. 6-297421).
【０００４】[0004]
【発明が解決しようとする課題】しかしながら焼嵌め
は、固着する力が摩擦力であるため、摩擦を生じる面積
が大きいもの、すなわち焼嵌め方向に長い形状のもので
ないと、高い結合力を得ることができない。言い換えれ
ば、薄物形状には不向きであり、嵌め込む多孔体の厚さ
に規制がある。鋳ぐるみは、脱泡、乾燥などの複雑な製
造工程が多く、製造時間が長いと共に製造コストも高い
という欠点がある。また、ねじ止めは、ねじの加工に手
間が掛かり、コストが高くなる欠点がある。However, since shrink-fitting is a frictional force, a high bonding force can be obtained unless the friction-producing area is large, that is, the shape is long in the shrink-fitting direction. Can not. In other words, it is not suitable for a thin shape, and the thickness of the porous body to be fitted is restricted. Casting has many drawbacks such as defoaming, drying, and other complicated manufacturing steps, and has the disadvantage that the manufacturing time is long and the manufacturing cost is high. In addition, screwing has the disadvantage that the processing of the screw requires time and costs.
【０００５】本発明は、製造が簡単であり、機能的に十
分な結合強度を有し、かつ多孔体とハウジングとの間の
隙間を確実にシール可能な多孔質軸受を提供することを
目的としている。SUMMARY OF THE INVENTION An object of the present invention is to provide a porous bearing which is simple to manufacture, has a functionally sufficient bonding strength, and can reliably seal the gap between the porous body and the housing. I have.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
の本発明は、ハウジングと、このハウジングに嵌着され
た多孔質材料製の多孔体とからなり、この多孔体により
形成された軸受面から気体を噴射させて被支持部材を支
持する多孔質軸受において、前記多孔体が、前記ハウジ
ングに嵌着されると共に、この嵌着部がはんだ付け又は
接着剤により互いに接合されているものである。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a housing, a porous body made of a porous material fitted to the housing, and a bearing surface formed by the porous body. In the porous bearing which supports the supported member by injecting gas from the housing, the porous body is fitted to the housing, and the fitted portion is joined to each other by soldering or an adhesive. .
【０００７】このように多孔体をはんだ付け又は接着剤
によりハウジングに接合すれば、多孔体をハウジングに
簡単に取り付けることができると共に、給気圧に十分耐
える強度を有し、かつ多孔体とハウジングとの間の隙間
は完全にシールされる。[0007] If the porous body is joined to the housing by soldering or an adhesive as described above, the porous body can be easily attached to the housing, and has sufficient strength to withstand the supply pressure, and can be connected to the housing with the porous body. The gap between them is completely sealed.
【０００８】なお、前記ハウジングと多孔体とからなる
多孔質軸受が、軸受本体に複数嵌着されると共に、この
嵌着部がはんだ付け又は接着剤により互いに接合される
ようにすれば、多孔質軸受をより安価に製造可能とな
る。また、前記多孔質材料としては、青銅製のものが適
しており、前記多孔体には、空孔径の異なる少なくとも
二層構造のものを用いることが好ましく、前記ハウジン
グは、鉄系材料であってもよい。If a plurality of porous bearings comprising the housing and the porous body are fitted to the bearing body and the fitted portions are joined to each other by soldering or an adhesive, the porous The bearing can be manufactured at lower cost. Further, as the porous material, a bronze material is suitable, and the porous body preferably has at least a two-layer structure having different pore diameters. The housing is an iron-based material. Is also good.
【０００９】[0009]
第１実施例 以下本発明の第１実施例について図１及び図２を参照し
て説明する。図１において、１０は本発明による多孔質
軸受であり、ハウジング１１と多孔体１２とからなって
いる。ハウジング１１は、鋼材であるＪＩＳ：ＳＣＭ４
４０により形成された平板状のものであり、軸受面とな
る図１において上面には、直径ｄ１が４０．１０ｍｍ、
深さｔが６ｍｍの円形の凹部１３が設けられ、この凹部
１３の底部中央には給気孔１４が設けられている。First Embodiment Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, reference numeral 10 denotes a porous bearing according to the present invention, which comprises a housing 11 and a porous body 12. The housing 11 is made of steel JIS: SCM4
40, and has a diameter d1 of 40.10 mm on the upper surface in FIG.
A circular recess 13 having a depth t of 6 mm is provided, and an air supply hole 14 is provided in the center of the bottom of the recess 13.
【００１０】多孔体１２は、１０重量％Ｓｎ青銅製の多
孔質材料からなる円板状のものであり、母材部１２Ａ
と、表面が軸受面となる表層部１２Ｂとからなる二層構
造を有し、表層部１２Ｂは、軸受として作動する際の自
励振動をより確実に防止するため、母材部１２Ａより小
さな空孔径の多孔質材料により形成されている。この多
孔体１２は、直径ｄ２が３９．９５ｍｍであり、厚さｔ
は上記凹部１３の深さｔと同じ６ｍｍに形成されてい
る。The porous body 12 is a disk-shaped one made of a porous material made of 10% by weight Sn bronze, and has a base material 12A.
And a surface layer portion 12B whose surface serves as a bearing surface. The surface layer portion 12B has a smaller space than the base material portion 12A in order to more reliably prevent self-excited vibration when operating as a bearing. It is formed of a porous material having a pore size. This porous body 12 has a diameter d2 of 39.95 mm and a thickness t.
Is formed at the same depth 6 mm as the depth t of the concave portion 13.
【００１１】多孔体１２は、ハウジング１１の凹部１３
に嵌入され、多孔体１２とハウジング１１との間を埋め
るはんだ１５によりハウジング１１に接合されている。The porous body 12 is provided in the recess 13 of the housing 11.
And is joined to the housing 11 by a solder 15 filling the space between the porous body 12 and the housing 11.
【００１２】このはんだ１５によるはんだ付けは、次の
ように行われた。 （１）ハウジング１１の凹部１３の底面を除く内周面に
フラックスを塗布した。このフラックスには、鉄系材料
の強固な酸化膜の除去に最適な水溶性塩化亜鉛系フラッ
クスを用いた。 （２）直径１．６ｍｍのワイヤ状でＳｎー３７重量％Ｐ
ｂの共晶はんだ（融点：１８３℃）を１．５ｇ切り出し
てハウジング１１の凹部１３の底面上に輪状に配置し
た。 （３）多孔体１２の外周面のみに上記のフラックスを塗
布し、多孔体１２を凹部１３に嵌入した。 （４）上記のように多孔体１２を嵌入したハウジング１
１を、図２に示すように、２００℃に加熱したホットプ
レート２０の上に載せた。 （５）５分後、はんだが溶けて凹部１３の内周面と多孔
体１２の外周面との隙間の上端まで上昇したところで、
予め２００℃に加熱しておいた鉄製の５００ｇのウエイ
ト２１を多孔体１２の上に載せた。これは、凹部１３の
底面と多孔体１２の底面との間のはんだの厚さを薄く、
かつ均一にするためである。 （６）ウエイト２１を載せて１０分経過後、ウエイト２
１を載せたままハウジング１１をホットプレート２０か
ら降ろして冷却した。 （７）冷却後、超音波洗浄機で洗浄してフラックスを除
去し、乾燥した。The soldering with the solder 15 was performed as follows. (1) A flux was applied to the inner peripheral surface of the housing 11 except for the bottom surface of the concave portion 13. As the flux, a water-soluble zinc chloride-based flux optimal for removing a strong oxide film of an iron-based material was used. (2) Sn-37 wt% P in 1.6mm diameter wire
1.5 g of the eutectic solder b (melting point: 183 ° C.) was cut out and arranged in a ring shape on the bottom surface of the recess 13 of the housing 11. (3) The above-mentioned flux was applied only to the outer peripheral surface of the porous body 12, and the porous body 12 was fitted into the concave portion 13. (4) Housing 1 in which porous body 12 is fitted as described above
2 was placed on a hot plate 20 heated to 200 ° C., as shown in FIG. (5) After 5 minutes, when the solder melts and rises to the upper end of the gap between the inner peripheral surface of the concave portion 13 and the outer peripheral surface of the porous body 12,
500 g of an iron weight 21 previously heated to 200 ° C. was placed on the porous body 12. This reduces the thickness of the solder between the bottom of the recess 13 and the bottom of the porous body 12,
This is for uniformity. (6) After 10 minutes have passed after placing the weight 21, the weight 2
The housing 11 was lowered from the hot plate 20 with the substrate 1 mounted thereon and cooled. (7) After cooling, it was washed with an ultrasonic washing machine to remove the flux and dried.
【００１３】上記のように製作した多孔質軸受１０の給
気孔１４に図示しない給気配管を接続し、多孔質軸受１
０を水中に入れて給気したところ、凹部１３の内周面と
多孔体１２の外周面との間からの気泡の発生はなく、多
孔体１２とハウジング１１との間は、この間を埋めるは
んだ１５により良好にシールされていることが確認され
た。An air supply pipe (not shown) is connected to the air supply hole 14 of the porous bearing 10 manufactured as described above.
When the air was supplied by putting water into the water, no air bubbles were generated between the inner peripheral surface of the concave portion 13 and the outer peripheral surface of the porous body 12, and the space between the porous body 12 and the housing 11 was filled with solder. 15 confirmed that the seal was well sealed.
【００１４】また、はんだ１５の接合面に沿う方向の接
合力（せん断強さ）は、はんだの接合力（せん断強さ）
が通常５ｋＮ／ｃｍ２程度であり、多孔体１２の外周面
の面積が約７．５ｃｍ２であるため、約３７．５ｋＮと
なる。これに対して前述した０．５ＭＰａの給気圧によ
り多孔体１２が受ける図１において上下方向の力は、多
孔体１２の軸受面の面積が約１２．７ｃｍ２であるた
め、約０．６３ｋＮである。そこで、上記接合力は、多
孔体１２の負荷に対し約６０倍の接合力を有しているこ
とになり、十分な強度を有している。The joining force (shear strength) of the solder 15 in the direction along the joining surface is the joining force (shear strength) of the solder.
Is usually about 5 kN / cm 2 , and the area of the outer peripheral surface of the porous body 12 is about 7.5 cm 2, which is about 37.5 kN. On the other hand, in FIG. 1, the vertical force received by the porous body 12 by the supply pressure of 0.5 MPa described above is about 0.63 kN because the area of the bearing surface of the porous body 12 is about 12.7 cm 2. is there. Therefore, the above-mentioned joining force has about 60 times the joining force with respect to the load of the porous body 12, and has a sufficient strength.
【００１５】第２実施例 次に本発明の第２実施例について説明する。この第２実
施例は、図１に示した第１実施例における多孔質軸受１
０のはんだ１５を接着剤に変えた点以外は、第１実施例
と同一とした。Second Embodiment Next, a second embodiment of the present invention will be described. The second embodiment is different from the first embodiment shown in FIG.
Except that the solder 15 of No. 0 was changed to an adhesive, the procedure was the same as that of the first embodiment.
【００１６】はんだ１５に代わる接着剤としては、接合
力が高い二液常温硬化型エポキシ系接着剤を用いた。以
下、この接着剤にも符号１５を用いる。なお、この接着
剤１５の粘度は、多孔体１２中への浸透を制限するた
め、約１５０Ｐａ・ｓと高い値を選択した。As an adhesive in place of the solder 15, a two-pack, room-temperature-curable epoxy adhesive having a high bonding strength was used. Hereinafter, reference numeral 15 is also used for this adhesive. The viscosity of the adhesive 15 was selected to be as high as about 150 Pa · s in order to limit the penetration into the porous body 12.
【００１７】この接着剤１５による接着は、次のように
行われた。 （１）ハウジング１１の凹部１３の底面を除く内周面と
多孔体１２の外周面を＃８０のサンドペーパで研磨し、
酸化膜を除去した。なお、このサンドペーパは、粗いも
のを用いると、接合力を高める効果がある。 （２）上記接着剤１５の主剤と硬化剤を秤量して等量ず
つ混合し、この接着剤をハウジング１１の凹部１３の底
面と多孔体１２の外周面に塗布し、多孔体１２を凹部１
３に嵌入した。 （３）多孔体１２の上に、図２に示した鉄製の５００ｇ
のウエイト２１と同じウエイトを載せ、１２時間放置し
てハウジング１１と多孔体１２の間の接着剤１５を十分
に硬化させた。なお、ウエイト２１は、第１実施例と同
様に凹部１３の底面と多孔体１２の底面との間の接着剤
層の厚さを薄く、かつ均一にするためである。The bonding with the adhesive 15 was performed as follows. (1) The inner peripheral surface excluding the bottom surface of the concave portion 13 of the housing 11 and the outer peripheral surface of the porous body 12 are polished with # 80 sandpaper,
The oxide film was removed. In addition, if this sandpaper is coarse, it has an effect of increasing the bonding force. (2) The main agent of the adhesive 15 and the curing agent are weighed and mixed in equal amounts, and the adhesive is applied to the bottom surface of the concave portion 13 of the housing 11 and the outer peripheral surface of the porous body 12.
3. (3) 500 g of the iron shown in FIG.
The same weight as that of the weight 21 was placed and left for 12 hours to sufficiently cure the adhesive 15 between the housing 11 and the porous body 12. The weight 21 is for making the thickness of the adhesive layer between the bottom surface of the concave portion 13 and the bottom surface of the porous body 12 thin and uniform as in the first embodiment.
【００１８】上記のように製作した多孔質軸受１０の給
気孔１４に図示しない給気配管を接続し、多孔質軸受１
０を水中に入れて給気したところ、凹部１３の内周面と
多孔体１２の外周面との間からの気泡の発生はなく、多
孔体１２とハウジング１１との間は、この間を埋める接
着剤１５により良好にシールされていることが確認され
た。An air supply pipe (not shown) is connected to the air supply hole 14 of the porous bearing 10 manufactured as described above, and the porous bearing 1
When air was supplied by putting water in water, no air bubbles were generated between the inner peripheral surface of the concave portion 13 and the outer peripheral surface of the porous body 12, and the adhesive between the porous body 12 and the housing 11 was filled in the gap. It was confirmed that the composition was well sealed by the agent 15.
【００１９】また、上記接着剤１５の接合面に沿う方向
の接合力（せん断強さ）は、２．６ｋＮ／ｃｍ２程度で
あり、多孔体１２の外周面の面積が約７．５ｃｍ２であ
るため、約１９．５ｋＮとなる。これに対して前述した
０．５ＭＰａの給気圧により多孔体１２が受ける図１に
おいて上下方向の力は、第１実施例で述べたように、約
０．６３ｋＮである。そこで、上記接合力は、多孔体１
２の負荷に対し約３０倍の接合力を有していることにな
り、十分な強度を有している。The bonding force (shear strength) of the adhesive 15 in the direction along the bonding surface is about 2.6 kN / cm 2 , and the area of the outer peripheral surface of the porous body 12 is about 7.5 cm 2 . Therefore, it is about 19.5 kN. On the other hand, the vertical force in FIG. 1 which is applied to the porous body 12 by the supply pressure of 0.5 MPa is about 0.63 kN as described in the first embodiment. Then, the above-mentioned bonding force is applied to the porous body 1
It has about 30 times the joining force with respect to the load of 2, and has a sufficient strength.
【００２０】前述した第一及び第二の実施例は、いずれ
も多孔体１２を空孔径が大きい母材部１２Ａと空孔径が
小さい表層部１２Ｂとからなる二層構造とした例を示し
たが、多孔質軸受１０の使用条件や母材部１２Ａの空孔
径の大きさの選定などにより、必ずしも二層構造にする
必要はなく、また、逆に必要に応じて三層以上の多層構
造としてもよく、また、前述した第一及び第二の実施例
では、説明を簡単にするため、ハウジング１１に多孔体
１２を１つだけ設けた例を示したが、適宜な配置で複数
設けてもよいことは言うまでもない。In each of the first and second embodiments described above, the porous body 12 has a two-layer structure including a base material portion 12A having a large pore diameter and a surface layer portion 12B having a small pore diameter. Depending on the conditions of use of the porous bearing 10 and the size of the pore diameter of the base material portion 12A, it is not always necessary to form a two-layer structure. Conversely, a three-layer or more multi-layer structure may be used if necessary. In addition, in the above-described first and second embodiments, an example in which only one porous body 12 is provided in the housing 11 is shown for simplicity of description, but a plurality of porous bodies 12 may be provided in an appropriate arrangement. Needless to say.
【００２１】さらにまた、前述した第一及び第二の実施
例は、いずれも平板状のハウジング１１の上面に設けた
円形の凹部１３に円板状の多孔体１２を嵌入したいわゆ
る直線案内用のスライダなどに適したものの例を示した
が、本発明は、これに限らず円筒状のハウジングに同じ
く円筒状の多孔体を嵌入する工作機械の主軸などの回転
軸用の軸受にも適用可能である。Furthermore, in the first and second embodiments described above, the disk-shaped porous body 12 is fitted into the circular recess 13 provided on the upper surface of the flat housing 11 for so-called linear guidance. Although an example of a material suitable for a slider or the like has been described, the present invention is not limited to this, and can also be applied to a bearing for a rotating shaft such as a main shaft of a machine tool in which a cylindrical porous body is similarly fitted into a cylindrical housing. is there.
【００２２】さらにまた、前述したハウジング１１は、
いわゆる軸受本体である必要はなく、図３に示すよう
に、ハウジング１１と多孔体１２とからなる多孔質軸受
１０を多孔質軸受ユニットとして部品化し、軸受本体３
０に適宜な配列で複数取り付けるようにしてもよい。こ
の場合にも、多孔質軸受１０を軸受本体３０に嵌着する
と共に、この嵌着部をはんだ付け又は接着剤により互い
に接合すれば、簡単に製造できると共に強度的にも十分
である。なお、このように多孔質軸受１０を多孔質軸受
ユニットとして部品化すれば、この多孔質軸受１０を大
量生産することが可能になるため、より安価に製造する
ことが可能になる。Further, the housing 11 described above
It does not need to be a so-called bearing body, and as shown in FIG. 3, a porous bearing 10 including a housing 11 and a porous body 12 is made into a part as a porous bearing unit,
A plurality may be attached to 0 in an appropriate arrangement. Also in this case, if the porous bearing 10 is fitted to the bearing main body 30 and the fitted portions are joined to each other by soldering or an adhesive, it can be easily manufactured and has sufficient strength. If the porous bearing 10 is made into a part as a porous bearing unit as described above, the porous bearing 10 can be mass-produced, so that it can be manufactured at lower cost.
【００２３】[0023]
【発明の効果】以上述べたように本発明によれば、比較
的低い温度の加熱で接合することのできるはんだ又は常
温でも接合することのできる接着剤により多孔体をハウ
ジングに簡単に接合することができるため、多孔質軸受
を簡単に製造することができると同時に、機能的に十分
な接合強度を有し、かつ多孔体とハウジングとの間の隙
間を確実にシールすることができ、多孔体中を通る気体
の透過量を正確に制御して適正な軸受剛性を得ることが
できるなどの効果が得られる。As described above, according to the present invention, a porous body can be easily joined to a housing by a solder that can be joined by heating at a relatively low temperature or an adhesive that can be joined at room temperature. Therefore, the porous bearing can be easily manufactured, and at the same time, it has a functionally sufficient joining strength, and can reliably seal the gap between the porous body and the housing. There are obtained effects such as that the amount of gas passing therethrough can be accurately controlled to obtain an appropriate bearing rigidity.
【図１】本発明による多孔質軸受の実施の形態を示す断
面図。FIG. 1 is a sectional view showing an embodiment of a porous bearing according to the present invention.
【図２】本発明による多孔質軸受の製造過程の一例を示
す断面図。FIG. 2 is a cross-sectional view showing an example of a process of manufacturing a porous bearing according to the present invention.
【図３】本発明による多孔質軸受の他の構成例を示す断
面図。FIG. 3 is a sectional view showing another configuration example of the porous bearing according to the present invention.
１０ 多孔質軸受 １１ ハウジング １２ 多孔体 １３ 凹部 １４ 給気孔 １５ はんだ又は接着剤 ２０ ホットプレート ２１ ウエイト ３０ 軸受本体 DESCRIPTION OF SYMBOLS 10 Porous bearing 11 Housing 12 Porous body 13 Depression 14 Air supply hole 15 Solder or adhesive 20 Hot plate 21 Weight 30 Bearing main body
Claims (7)
れた多孔質材料製の多孔体とからなり、この多孔体によ
り形成された軸受面から気体を噴射させて被支持部材を
支持する多孔質軸受において、 前記多孔体が、前記ハウジングに嵌着されると共に、こ
の嵌着部がはんだ付けにより互いに接合されていること
を特徴とする多孔質軸受。1. A porous bearing comprising a housing and a porous body made of a porous material fitted to the housing, and supporting a supported member by injecting gas from a bearing surface formed by the porous body. 3. The porous bearing according to claim 1, wherein the porous body is fitted to the housing, and the fitted portions are joined to each other by soldering.
れた多孔質材料製の多孔体とからなり、この多孔体によ
り形成された軸受面から気体を噴射させて被支持部材を
支持する多孔質軸受において、 前記多孔体が、前記ハウジングに嵌着されると共に、こ
の嵌着部が接着剤により互いに接合されていることを特
徴とする多孔質軸受。2. A porous bearing comprising a housing and a porous body made of a porous material fitted to the housing, and supporting a supported member by injecting gas from a bearing surface formed by the porous body. 5. The porous bearing according to claim 1, wherein the porous body is fitted to the housing, and the fitted portions are joined to each other by an adhesive.
質軸受が、軸受本体に複数嵌着されると共に、この嵌着
部がはんだ付けにより互いに接合されていることを特徴
とする請求項１又は２記載の多孔質軸受。3. The bearing according to claim 1, wherein a plurality of porous bearings comprising the housing and the porous body are fitted to the bearing body, and the fitted portions are joined to each other by soldering. 2. The porous bearing according to 2.
質軸受が、軸受本体に複数嵌着されると共に、この嵌着
部が接着剤により互いに接合されていることを特徴とす
る請求項１又は２記載の多孔質軸受。4. The bearing according to claim 1, wherein a plurality of porous bearings comprising the housing and the porous body are fitted to the bearing body, and the fitted portions are joined to each other by an adhesive. 2. The porous bearing according to 2.
特徴とする請求項１ないし４のいずれか１つに記載の多
孔質軸受。5. The porous bearing according to claim 1, wherein the porous material is made of bronze.
も二層構造であることを特徴とする請求項１ないし５の
いずれか１つに記載の多孔質軸受。6. The porous bearing according to claim 1, wherein the porous body has at least a two-layer structure having different hole diameters.
を特徴とする請求項１ないし６のいずれか１つに記載の
多孔質軸受。7. The porous bearing according to claim 1, wherein the housing is made of an iron-based material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11021709A JP2000220638A (en) | 1999-01-29 | 1999-01-29 | Porous bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11021709A JP2000220638A (en) | 1999-01-29 | 1999-01-29 | Porous bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000220638A true JP2000220638A (en) | 2000-08-08 |
Family
ID=12062600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11021709A Pending JP2000220638A (en) | 1999-01-29 | 1999-01-29 | Porous bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000220638A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017509850A (en) * | 2014-03-27 | 2017-04-06 | サン−ゴバン パフォーマンス プラスティックス コーポレイション | Rotating shaft housing and seal |
| CN112983990A (en) * | 2021-03-23 | 2021-06-18 | 哈尔滨工业大学 | Static pressure air flotation unit based on pouring forming and processing method |
-
1999
- 1999-01-29 JP JP11021709A patent/JP2000220638A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017509850A (en) * | 2014-03-27 | 2017-04-06 | サン−ゴバン パフォーマンス プラスティックス コーポレイション | Rotating shaft housing and seal |
| US10393268B2 (en) | 2014-03-27 | 2019-08-27 | Saint-Gobain Performance Plastics Corporation | Rotary shaft housing and seal |
| CN112983990A (en) * | 2021-03-23 | 2021-06-18 | 哈尔滨工业大学 | Static pressure air flotation unit based on pouring forming and processing method |
| CN112983990B (en) * | 2021-03-23 | 2022-04-29 | 哈尔滨工业大学 | Static pressure air flotation unit based on pouring forming and processing method |
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