JP3104927B2 - Plain bearing - Google Patents
Plain bearingInfo
- Publication number
- JP3104927B2 JP3104927B2 JP04065758A JP6575892A JP3104927B2 JP 3104927 B2 JP3104927 B2 JP 3104927B2 JP 04065758 A JP04065758 A JP 04065758A JP 6575892 A JP6575892 A JP 6575892A JP 3104927 B2 JP3104927 B2 JP 3104927B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- vibration
- metal shell
- sleeve
- side 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.)
- Expired - Fee Related
Links
Landscapes
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばポンプの軸を支
持するのに用いられるすべり軸受に関し、特に、セラミ
ックスや超硬合金等の硬質脆性材料を摺動部材として用
いているすべり軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sliding bearing used for supporting, for example, a shaft of a pump, and more particularly to a sliding bearing using a hard brittle material such as ceramics or cemented carbide as a sliding member.
【０００２】[0002]
【従来の技術】硬質脆性材料を摺動部材として用いたす
べり軸受の従来技術として、片当りによる軸受の損傷を
防止するため、図３で示すような構造を採用したものが
知られている。図３において、軸１にはスリーブ２が嵌
合しており、スリーブ２に対向して軸受側摺動部材４が
設けられ、軸受側摺動部材４は焼嵌め等の手法により金
属シェル７と一体になっている。そして、金属シェル７
と軸受ケース３との間には緩衝部材５が介装され、該緩
衝部材５は軸方向に穿孔された貫通孔６…を設けてい
る。ここで貫通孔６…は、緩衝部材５の弾性係数及び変
形量を最適値に調整するために設けられている。2. Description of the Related Art As a conventional slide bearing using a hard and brittle material as a sliding member, there has been known a slide bearing employing a structure as shown in FIG. In FIG. 3, a sleeve 2 is fitted on a shaft 1, and a bearing-side sliding member 4 is provided facing the sleeve 2. The bearing-side sliding member 4 is connected to a metal shell 7 by shrink fitting or the like. They are united. And metal shell 7
A buffer member 5 is interposed between the bearing case 3 and the buffer member 5. The buffer member 5 is provided with through holes 6 drilled in the axial direction. Here, the through holes 6 are provided to adjust the elastic coefficient and the deformation amount of the buffer member 5 to optimal values.
【０００３】[0003]
【発明が解決しようとする課題】しかし、図３で示す様
なすべり軸受を空気中で使用した場合には、自励振動に
よる後向き振れ回りが発生し、極めて大きな振動や騒音
が生じ、摺動面が損傷することがあった。すなわち、図
３で示す様な従来技術は軸側摺動部材と軸受側摺動部材
との当りを均一化する（片当りしない様にする）事は出
来るが、振動の吸収、減衰が必ずしも十分ではない、と
いう問題が存在したのである。However, when a slide bearing as shown in FIG. 3 is used in the air, backward whirling occurs due to self-excited vibration, and extremely large vibrations and noises occur. The surface could be damaged. In other words, the prior art as shown in FIG. 3 can make the contact between the shaft-side sliding member and the bearing-side sliding member uniform (so as not to hit one side), but the vibration absorption and attenuation are not necessarily sufficient. There was a problem.
【０００４】本発明は上記した従来技術の問題点に鑑み
て提案されたもので、振動の減衰作用が大幅に向上し、
特に空気中で使用した場合における振動を吸収して、軸
側摺動部材及び軸受側摺動部材の損傷を防止することが
出来るすべり軸受の提供を目的としている。[0004] The present invention has been proposed in view of the above-mentioned problems of the prior art, and greatly improves the vibration damping effect.
In particular, an object of the present invention is to provide a sliding bearing capable of absorbing vibration when used in the air and preventing damage to the shaft-side sliding member and the bearing-side sliding member.
【０００５】[0005]
【課題を解決するための手段】本発明によれば、硬質脆
性材料のスリーブ（２）が嵌合しており、そのスリーブ
（２）に対向して金属シェル（７）と一体の軸受側摺動
部材（４）が設けられ、そして金属シェル（７）と軸受
ケース（３）との間に緩衝部材（１２）が設けられてい
るすべり軸受において、その金属シェル（７）は緩衝部
材（１２）中のゴム製部材に圧入されており、緩衝部材
（１２）の全周は複数の室（１３）に仕切られており、
それらの室には粘弾性材料（１４）が封入されている。According to the present invention, a sleeve (2) of a hard and brittle material is fitted, and a bearing-side slide integral with a metal shell (7) is opposed to the sleeve (2). In a sliding bearing provided with a moving member (4) and a shock-absorbing member (12) between the metal shell (7) and the bearing case (3), the metal shell (7) includes a shock-absorbing member (12). ) Is press-fitted into the rubber member, and the entire periphery of the cushioning member (12) is partitioned into a plurality of chambers (13).
These chambers are filled with a viscoelastic material (14).
【０００６】ここで、硬質の脆性材料としては、例えば
セラミックスや超硬合金等が好ましい。そして、弾性体
としてはゴム等が好ましく、粘弾性体としてはシリコン
等のゲル状物質を用いるのが好ましい。Here, as the hard brittle material, for example, ceramics and cemented carbide are preferable. The elastic body is preferably rubber or the like, and the viscoelastic body is preferably a gel-like substance such as silicon.
【０００７】[0007]
【０００８】また、弾性体であるゴムが粘弾性体である
ゲル状シリコンの両端部を覆っているが好ましい。It is preferable that rubber as an elastic body covers both ends of the gel-like silicon as a viscoelastic body.
【０００９】[0009]
【作用】上記した様な構成を有する本発明のすべり軸受
によれば、緩衝部材は室内の粘弾性材料により、摺動部
材同士（軸側摺動部材と軸受側摺動部材）の当りを均一
化すると共に、振動を十分に吸収して減衰する作用を奏
する。すなわち、本発明のすべり軸受を空気中で使用し
ても振動が十分に吸収され減衰するので、自励振動及び
それに起因する後向き振れ回りは発生せず、大きな振動
や騒音が生じる事も無く、摺動面が損傷することが防止
されるのである。According to the sliding bearing of the present invention having the above-described structure, the cushioning member is made of a viscoelastic material in the room so that the contact between the sliding members (the shaft-side sliding member and the bearing-side sliding member) is uniform. In addition, the vibration is sufficiently absorbed and attenuated. That is, even if the sliding bearing of the present invention is used in air, the vibration is sufficiently absorbed and attenuated, so that self-excited vibration and the backward whirling caused by the vibration do not occur, without generating large vibration and noise, Damage to the sliding surface is prevented.
【００１０】また、ゴム製部材の半径方向寸法（厚さ）
と粘弾性体から成る部材の半径方向寸法（厚さ）とを適
宜調整することにより、緩衝部材の弾性係数、減衰係
数、変形量を個々の軸受毎に最適な値に調節することが
可能となる。或いは、弾性体及び粘弾性体の材質を変更
しても、同様な作用効果は得られる。The radial dimension (thickness) of the rubber member
By appropriately adjusting the radial dimension (thickness) of the member made of the viscoelastic body, it is possible to adjust the elastic coefficient, damping coefficient, and deformation of the cushioning member to optimal values for each bearing. Become. Alternatively, even if the materials of the elastic body and the viscoelastic body are changed, the same operation and effect can be obtained.
【００１１】[0011]
【実施例】以下、図１及び図２を参照して、本発明の実
施例について説明する。なお、図１、２において図３で
示すのと同一な部材には同一の符号を付し、重複説明を
省略する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2, the same members as those shown in FIG. 3 are denoted by the same reference numerals, and redundant description will be omitted.
【００１２】図１で示す本発明の第１実施例において、
全体を符号１０で示す本発明のすべり軸受が軸１を支持
している状態が示されている。軸１にはスリーブ２が嵌
合しており、ここでスリーブ２はセラミックス又は超硬
合金等の硬質脆性材料製である。このスリーブ２に対向
し且つ相互に摺動する態様で軸受側摺動部材４が設けら
れ、軸受側摺動部材４は焼嵌め等の手法により金属シェ
ル７と一体になっている。そして、金属シェル７は緩衝
部材１２中のゴム製部材（明確には図示せず）に圧入さ
れている。In the first embodiment of the present invention shown in FIG.
The slide bearing of the present invention, which is generally designated by the reference numeral 10, shows a state in which the shaft 1 is supported. A sleeve 2 is fitted on the shaft 1, where the sleeve 2 is made of a hard brittle material such as ceramics or cemented carbide. A bearing-side sliding member 4 is provided so as to face the sleeve 2 and slide with each other. The bearing-side sliding member 4 is integrated with the metal shell 7 by a technique such as shrink fitting. The metal shell 7 is press-fitted into a rubber member (not clearly shown) in the cushioning member 12.
【００１３】緩衝部材１２の全周は複数の室１３…に仕
切られており、該室には粘弾性材料であるゲル状シリコ
ン１４が封入されている。そして、ゴム中に形成された
室内にゲル状シリコンを封入したことにより、緩衝部材
の振動吸収性、振動減衰性は非常に良好である。そし
て、図示しないゴム製部材及びゲル状シリコン１４の材
質、寸法（特に半径方向Ｒの厚さ）を適宜調節すること
により、緩衝部材１２の物性を適当な値に調節出来る。The entire circumference of the cushioning member 12 is partitioned into a plurality of chambers 13. A gel silicon 14 as a viscoelastic material is sealed in the chambers. And, since the gel-like silicon is sealed in the chamber formed in the rubber, the vibration absorbing property and the vibration damping property of the buffer member are very good. By appropriately adjusting the material and dimensions (particularly the thickness in the radial direction R) of the rubber member (not shown) and the gel silicon 14, the physical properties of the cushioning member 12 can be adjusted to appropriate values.
【００１４】なお、図１中の符号３は、図３と同様に、
軸受ケースを意味している。Incidentally, the reference numeral 3 in FIG.
It means a bearing case.
【００１５】図２は本発明の第２実施例を示している。
この第２実施例においては、弾性体であるゴム製部材１
４ａ、１４ｂが粘弾性体であるゲル状シリコン１４の両
端部（図２においては上下端部）を覆って構成されてい
る。その他の構成、作用効果については、図１の第１実
施例と同様であるので、重複説明を省略する。FIG. 2 shows a second embodiment of the present invention.
In the second embodiment, a rubber member 1 which is an elastic body is used.
Reference numerals 4a and 14b cover both ends (upper and lower ends in FIG. 2) of the gel silicon 14 which is a viscoelastic body. The other configuration and operation and effect are the same as those of the first embodiment of FIG.
【００１６】[0016]
【発明の効果】以上の通り、本発明によれば下記のすぐ
れた効果を奏する。 （ａ） 緩衝部材中のゴム製部材に形成した室内に粘弾
性材料を封入したので、緩衝部材は振動吸収性、振動減
衰性が良好であり、摺動面の損傷が防止できる。 （ｂ） 空気中で使用しても振動が十分に吸収され減衰
するので、自励振動及びそれに起因する後向き振れ回り
が発生せず、大きな振動や騒音も生じない。 （ｃ） 緩衝部材のゴム製部材の半径方向寸法（厚さ）
と粘弾性体から成る部材の半径方向寸法（厚さ）とを適
宜調整することにより、緩衝部材の弾性係数、減衰係
数、変形量を調節出来る。 （ｄ） 弾性体及び粘弾性体の材質を選択することによ
り、緩衝部材の弾性係数、減衰係数、変形量を調節出来
る。 （ｅ） 軸側摺動部材と軸受側摺動部材の当りを均一化
することが出来る。As described above, according to the present invention, the following excellent effects can be obtained. (A) Since the viscoelastic material is sealed in the chamber formed in the rubber member in the cushioning member, the cushioning member has good vibration absorption and vibration damping properties, and can prevent the sliding surface from being damaged. (B) Even when used in the air, the vibration is sufficiently absorbed and attenuated, so that self-excited vibration and the backward whirling caused by the vibration are not generated, and no large vibration or noise is generated. (C) Radial dimension (thickness) of rubber member of cushioning member
The elastic modulus, damping coefficient and deformation of the cushioning member can be adjusted by appropriately adjusting the radial dimension (thickness) of the member made of the viscoelastic body. (D) By selecting the material of the elastic body and the viscoelastic body, it is possible to adjust the elastic coefficient, the damping coefficient, and the deformation amount of the cushioning member. (E) The contact between the shaft side sliding member and the bearing side sliding member can be made uniform.
【００１７】[0017]
【００１８】[0018]
【００１９】[0019]
【００２０】[0020]
【００２１】[0021]
【００２２】[0022]
【００２３】[0023]
【図１】本発明の第１実施例を示す断面正面図。FIG. 1 is a sectional front view showing a first embodiment of the present invention.
【図２】本発明の第２実施例を示す断面正面図。FIG. 2 is a sectional front view showing a second embodiment of the present invention.
【図３】従来技術の断面正面図。FIG. 3 is a sectional front view of a conventional technique.
１・・・軸 ２・・・スリーブ ３・・・軸受ケース ４・・・軸受側摺動部材 ５、１２・・・緩衝部材 ７・・・金属シェル １３・・・室 １４・・・ゲル状シリコン（粘弾性体から成る部材） １４ａ、１４ｂ・・・ゴム製部材 Ｒ・・・半径方向 DESCRIPTION OF SYMBOLS 1 ... Shaft 2 ... Sleeve 3 ... Bearing case 4 ... Bearing side sliding member 5, 12 ... Buffer member 7 ... Metal shell 13 ... Chamber 14 ... Gel-like Silicon (member made of a viscoelastic body) 14a, 14b: rubber member R: radial direction
フロントページの続き (56)参考文献 特開 平２−8513（ＪＰ，Ａ) 特開 平１−200320（ＪＰ，Ａ) 実開 平３−112119（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) F16C 27/06 F16C 33/12 F16C 33/24 Continuation of the front page (56) References JP-A-2-8513 (JP, A) JP-A-1-200320 (JP, A) JP-A-3-112119 (JP, U) (58) Fields surveyed (Int) .Cl. 7 , DB name) F16C 27/06 F16C 33/12 F16C 33/24
Claims (1)
ており、そのスリーブ（２）に対向して金属シェル
（７）と一体の軸受側摺動部材（４）が設けられ、そし
て金属シェル（７）と軸受ケース（３）との間に緩衝部
材（１２）が設けられているすべり軸受において、その
金属シェル（７）は緩衝部材（１２）中のゴム製部材に
圧入されており、緩衝部材（１２）の全周は複数の室
（１３）に仕切られており、それらの室には粘弾性材料
（１４）が封入されていることを特徴とするすべり軸
受。A sleeve (2) of a hard brittle material is fitted, and a bearing-side sliding member (4) integral with a metal shell (7) is provided facing the sleeve (2); In a sliding bearing in which a buffer member (12) is provided between a metal shell (7) and a bearing case (3), the metal shell (7) is press-fitted into a rubber member in the buffer member (12). A sliding bearing wherein the entire periphery of the cushioning member (12) is partitioned into a plurality of chambers (13), and the chambers are filled with a viscoelastic material (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04065758A JP3104927B2 (en) | 1992-03-24 | 1992-03-24 | Plain bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04065758A JP3104927B2 (en) | 1992-03-24 | 1992-03-24 | Plain bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05272533A JPH05272533A (en) | 1993-10-19 |
| JP3104927B2 true JP3104927B2 (en) | 2000-10-30 |
Family
ID=13296255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04065758A Expired - Fee Related JP3104927B2 (en) | 1992-03-24 | 1992-03-24 | Plain bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3104927B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6381026B2 (en) * | 2014-06-26 | 2018-08-29 | コマツＮｔｃ株式会社 | Attenuator for rotary cutting tools |
| JP2017128222A (en) * | 2016-01-20 | 2017-07-27 | Ntn株式会社 | Power transmission unit |
-
1992
- 1992-03-24 JP JP04065758A patent/JP3104927B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05272533A (en) | 1993-10-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |