JP2524847Y2 - Ceramic bearing - Google Patents
Ceramic bearingInfo
- Publication number
- JP2524847Y2 JP2524847Y2 JP1991040203U JP4020391U JP2524847Y2 JP 2524847 Y2 JP2524847 Y2 JP 2524847Y2 JP 1991040203 U JP1991040203 U JP 1991040203U JP 4020391 U JP4020391 U JP 4020391U JP 2524847 Y2 JP2524847 Y2 JP 2524847Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- elastic support
- support member
- bearing body
- ceramic
- 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 - Lifetime
Links
Landscapes
- Support Of The Bearing (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は、縦軸ポンプ又は横軸ポ
ンプ等に適用されるセラミックス軸受に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceramic bearing applied to a vertical pump or a horizontal pump.
【０００２】[0002]
【従来の技術】従来、縦軸ポンプ又は横軸ポンプ等の軸
受として、耐摩耗性および耐熱性に優れたセラミックス
軸受が用いられている。このセラミックス軸受は、例え
ば図３に示すように、軸受ハウジング１内で、円筒状の
セラミックス製軸受体２を金属製リテーナ３を介して支
持し、軸受ハウジング１とリテーナ３との間に、弾性支
持部材として複数個のＯリング４を設けた構成とされて
いる。2. Description of the Related Art Conventionally, ceramic bearings having excellent wear resistance and heat resistance have been used as bearings for vertical axis pumps and horizontal axis pumps. For example, as shown in FIG. 3, this ceramic bearing supports a cylindrical ceramic bearing body 2 via a metal retainer 3 in a bearing housing 1, and elastically moves between the bearing housing 1 and the retainer 3. A plurality of O-rings 4 are provided as support members.
【０００３】また、図４に示すように、弾性支持部材と
して、複数個のＯリングに代えて、円筒状合成ゴム５を
設けたものもある。As shown in FIG. 4, there is also an elastic support member provided with a cylindrical synthetic rubber 5 instead of a plurality of O-rings.
【０００４】このように、複数個のＯリング４又は円筒
状合成ゴム５等の弾性支持部材を用いることにより、セ
ラミックス製軸受体２の衝撃抵抗に劣るという機械的欠
点を克服している。As described above, the use of the elastic support members such as the plurality of O-rings 4 or the cylindrical synthetic rubber 5 overcomes the mechanical drawback of the ceramic bearing member 2 inferior in impact resistance.
【０００５】[0005]
【考案が解決しようとする課題】ところが、従来では、
図３および図４に示すように、複数個のＯリング４又は
円筒状合成ゴム５等の弾性支持部材が、軸受体２の軸方
向全体の領域に亘る長さで収容配置されている。このた
め、支持される軸６が撓み等によって傾斜したような場
合、弾性支持部材がその傾斜に追随できず、軸受体２が
軸６に片当りして振動が発生したり、軸受体２又は軸６
が損傷することがあった。[Problem to be solved by the invention] However, in the past,
As shown in FIGS. 3 and 4, a plurality of elastic support members, such as O-rings 4 or cylindrical synthetic rubbers 5, are accommodated and arranged over the entire length of the bearing body 2 in the axial direction. Therefore, when the supported shaft 6 is inclined due to bending or the like, the elastic support member cannot follow the inclination, and the bearing body 2 hits the shaft 6 to generate vibration, or the bearing body 2 or Axis 6
Could be damaged.
【０００６】本考案は、このような従来技術の課題を解
決するためになされたもので、軸が撓み等により傾斜し
たような場合でも、弾性支持部材がその傾斜に十分追随
でき、振動や軸の損傷等の発生を確実に防止できるセラ
ミックス軸受を提供することを目的とする。The present invention has been made to solve such a problem of the prior art. Even when the shaft is inclined due to bending or the like, the elastic support member can sufficiently follow the inclination, and vibration and shaft It is an object of the present invention to provide a ceramic bearing capable of reliably preventing the occurrence of damage or the like.
【０００７】[0007]
【課題を解決するための手段】上記の課題を解決するた
めに、本考案は、軸受ハウジング内で、円筒状のセラミ
ックス製軸受体を金属製リテーナを介して支持し、前記
軸受ハウジングとリテーナとの間に、複数個のＯリン
グ、又は円筒状合成ゴム、その他の弾性支持部材を設け
たセラミックス軸受において、前記弾性支持部材を前記
軸受体の軸方向中心部で、かつその軸受体の軸方向長さ
の１／２の範囲内の領域に収容配置したものである。In order to solve the above-mentioned problems, the present invention is to support a cylindrical ceramic bearing body via a metal retainer in a bearing housing, and to connect the bearing housing and the retainer to each other. A ceramic bearing having a plurality of O-rings, or a cylindrical synthetic rubber, or another elastic support member, between the elastic support member at the axial center of the bearing body and the axial direction of the bearing body. It is housed and arranged in a region within a half of the length.
【０００８】[0008]
【作用】上記の手段によれば、軸受ハウジングとリテー
ナとの間に設けられる弾性支持部材を、軸受体の軸方向
中心部で、かつその軸受体の軸方向長さの１／２の範囲
内の領域に収容配置したので、弾性支持部材に自動調心
機能を付与させることができ、これにより、軸が撓み等
により傾斜したような場合でも、弾性支持部材がその傾
斜に十分に追随でき、振動や軸の損傷等の発生を確実に
防止できるようになる。According to the above means, the elastic support member provided between the bearing housing and the retainer is provided at the center of the bearing body in the axial direction and within a range of 1/2 of the axial length of the bearing body. Since the elastic support member can be provided with a self-centering function, the elastic support member can sufficiently follow the inclination even when the shaft is inclined due to bending or the like. Occurrence of vibration and damage to the shaft can be reliably prevented.
【０００９】また、自動調心機能の付与によって、軸受
ハウジングおよびそのハウジングの取付け部の加工の
際、同心加工精度を過度に高める必要がなくなり、加工
コストをそれだけ低減することが可能となる。Further, by providing the self-aligning function, it is not necessary to excessively increase the concentric machining accuracy when machining the bearing housing and the mounting portion of the housing, and the machining cost can be reduced accordingly.
【００１０】[0010]
【実施例】以下、図１および図２を参照して本考案の実
施例について詳細に説明する。説明を簡単にするため、
従来例と対応する部材には図３および図４と共通符号を
使用する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to FIGS. For simplicity,
3 and 4 are used for members corresponding to those of the conventional example.
【００１１】図１は本考案の第１実施例を示す。本実施
例でも、図３に示した従来例と同様に、軸受ハウジング
１内で、円筒状のセラミックス製軸受体２が金属製リテ
ーナ３を介して支持され、軸受ハウジング１とリテーナ
３との間に、弾性支持部材として複数個のＯリング４が
設けられている。FIG. 1 shows a first embodiment of the present invention. Also in this embodiment, similarly to the conventional example shown in FIG. 3, a cylindrical ceramic bearing body 2 is supported via a metal retainer 3 in a bearing housing 1, and between the bearing housing 1 and the retainer 3. , A plurality of O-rings 4 are provided as elastic support members.
【００１２】このものにおいて、本実施例によれば、複
数個のＯリング４は軸受体２の軸方向中心部で、かつそ
の軸受体の軸方向長さＬの１／２の範囲１内に領域に収
容されている。つまり、複数個のＯリング４の両端配置
のものの間の距離１が、軸受体２の軸方向長さＬの１／
２の範囲内に設置され、これら全てのＯリング４が軸受
体２の軸方向中心部に配置されている。In this embodiment, according to the present embodiment, the plurality of O-rings 4 are located at the axial center of the bearing body 2 and within a range 1 of 1/2 of the axial length L of the bearing body. Housed in the area. That is, the distance 1 between the two O-rings 4 arranged at both ends is 1/1 / L of the axial length L of the bearing body 2.
2 and all the O-rings 4 are arranged at the axial center of the bearing body 2.
【００１３】このような構成によれば、軸受ハウジング
１とリテーナ３との間に設けられる複数個のＯリング４
が、軸受体２の軸方向中心部で、かつその軸方向長さの
１／２の範囲内の領域に収容されているので、Ｏリング
４に自動調心機能が付与される状態となる。According to such a configuration, a plurality of O-rings 4 provided between the bearing housing 1 and the retainer 3 are provided.
Is accommodated in the axial center portion of the bearing body 2 and in a region within a half of its axial length, so that the O-ring 4 is provided with a self-centering function.
【００１４】そして、上記寸法関係の軸受を、多数の縦
軸ポンプおよび横軸ポンプの実機に適用して運転したと
ころ、軸受体２に支持される軸６が、撓み等によって傾
斜したような場合でも、Ｏリング４がその傾斜に十分追
随でき、振動や軸の損傷等の発生を確実に防止できるよ
うになることが認められた。When the bearing having the above-mentioned dimensional relationship is applied to a number of actual pumps of the vertical axis pump and the horizontal axis pump and operated, it is found that the shaft 6 supported by the bearing body 2 is inclined due to bending or the like. However, it was recognized that the O-ring 4 can sufficiently follow the inclination, and the occurrence of vibration, damage to the shaft, and the like can be reliably prevented.
【００１５】また、自動調心機能の付与によって、軸受
ハウジング１およびそのハウジングの取付け部の加工の
際、同心加工精度を過度に高める必要がなくなり、加工
コストをそれだけ低減することも可能となった。By providing the self-aligning function, it is not necessary to excessively increase the concentric machining accuracy when machining the bearing housing 1 and the mounting portion of the housing, and it is possible to reduce the machining cost accordingly. .
【００１６】次に、図２は本考案の第２実施例を示す。
本実施例が前記した第１実施例と異なる点は、弾性支持
部材として、前記第１実施例の複数個のＯリング４に代
え、円筒状合成ゴム５を設けた点にある。他の構成は、
前記第１実施例と同様であるから、同一の部材には図１
と同一符号を付して、重複する説明を省略する。FIG. 2 shows a second embodiment of the present invention.
This embodiment is different from the first embodiment in that a cylindrical synthetic rubber 5 is provided as an elastic support member instead of the plurality of O-rings 4 of the first embodiment. Other configurations are
As the first embodiment is the same as the first embodiment, FIG.
The same reference numerals are given and duplicate description will be omitted.
【００１７】本実施例では、円筒状合成ゴム５の軸方向
長さ１が、軸受体２の軸方向長さＬの１／２の範囲内に
設定され、この円筒状合成ゴム５が軸受体２の軸方向中
心部に配置されている。In this embodiment, the axial length 1 of the cylindrical synthetic rubber 5 is set within a range of の of the axial length L of the bearing 2, and the cylindrical synthetic rubber 5 is 2 at the center in the axial direction.
【００１８】このような構成によっても、軸受体２に支
持される軸６が、撓み等によって傾斜したような場合で
も、円筒状合成ゴム５がその傾斜に十分追随でき、振動
や軸の損傷等の発生を確実に防止できるようになること
が認められ、また、自動調心機能の付与によって、軸受
ハウジング１およびそのハウジングの取付け部の加工の
際、同心加工精度を過度に高める必要がなくなり、加工
コストをそれだけ低減することも可能となった。Even with such a configuration, even when the shaft 6 supported by the bearing body 2 is inclined due to bending or the like, the cylindrical synthetic rubber 5 can sufficiently follow the inclination, and vibration, damage to the shaft, etc. It has been recognized that the generation of the bearing can be reliably prevented, and the provision of the self-aligning function eliminates the need to excessively increase the concentric machining accuracy when machining the bearing housing 1 and the mounting portion of the housing. The processing cost can be reduced accordingly.
【００１９】なお、上記各実施例では、弾性支持部材を
Ｏリング４又は円筒状合成ゴム５としたが、弾性支持部
材としては、これらの構成に限られない。例えば、コイ
ルスプリング状の構成のものなど、種々の構成が適用で
きるものである。In the above embodiments, the elastic support member is the O-ring 4 or the cylindrical synthetic rubber 5, but the elastic support member is not limited to these configurations. For example, various configurations such as a coil spring configuration can be applied.
【００２０】[0020]
【考案の効果】以上述べたように、本考案によれば、軸
受ハウジングとリテーナとの間に設けられる弾性支持部
材を、軸受体の軸方向中心部で、かつその軸受体の軸方
向長さの１／２の範囲内の領域に収容配置したので、弾
性支持部材に自動調心機能を付与させることができ、こ
れにより、軸が撓み等により傾斜したような場合でも、
弾性支持部材がその傾斜に十分追随でき、振動や軸の損
傷等の発生を確実に防止でき、しかも、その自動調心機
能の付与によって、軸受ハウジングおよびそのハウジン
グの取付け部の加工の際、同心加工精度を過度に高める
必要がなくなり、加工コストをそれだけ低減することが
できる等の優れた効果が奏される。As described above, according to the present invention, the elastic support member provided between the bearing housing and the retainer is provided at the axial center of the bearing body and in the axial length of the bearing body. Since it is accommodated and arranged in a region within a range of 1/2 of the range, the self-centering function can be imparted to the elastic support member, whereby even when the shaft is inclined due to bending or the like,
The elastic support member can sufficiently follow the inclination, and can reliably prevent the occurrence of vibration, damage to the shaft, and the like. In addition, by providing the self-aligning function, the bearing support member and the mounting portion of the housing are concentric. There is no need to excessively increase the processing accuracy, and excellent effects such as a reduction in processing cost can be achieved.
【図１】本考案の第１実施例に係るセラミックス軸受を
示す断面図である。FIG. 1 is a sectional view showing a ceramic bearing according to a first embodiment of the present invention.
【図２】本考案の第２実施例に係るセラミックス軸受を
示す断面図である。FIG. 2 is a sectional view illustrating a ceramic bearing according to a second embodiment of the present invention.
【図３】従来のセラミックス軸受の一例を示す断面図で
ある。FIG. 3 is a sectional view showing an example of a conventional ceramic bearing.
【図４】従来のセラミックス軸受の他の例を示す断面図
である。FIG. 4 is a sectional view showing another example of a conventional ceramic bearing.
１ 軸受ハウジング ２ 軸受体 ３ リテーナ ４ Ｏリング（弾性支持部材） ５ 円筒状合成ゴム（弾性支持部材） ６ 軸 DESCRIPTION OF SYMBOLS 1 Bearing housing 2 Bearing body 3 Retainer 4 O-ring (elastic support member) 5 Cylindrical synthetic rubber (elastic support member) 6 Shaft
Claims (1)
ス製軸受体を金属製リテーナを介して支持し、前記軸受
ハウジングとリテーナとの間に、複数個のＯリング、又
は円筒状合成ゴム、その他の弾性支持部材を設けたセラ
ミックス軸受において、前記弾性支持部材を、前記軸受
体の軸方向中心部で、かつその軸受体の軸方向長さの１
／２の範囲内の領域に収容配置したことを特徴とするセ
ラミックス軸受。1. A cylindrical ceramic bearing body is supported in a bearing housing via a metal retainer, and a plurality of O-rings, cylindrical synthetic rubber, and the like are provided between the bearing housing and the retainer. In the ceramic bearing provided with the elastic support member of the above, the elastic support member is provided at the axial center of the bearing body and the axial length of the bearing body is 1
A ceramic bearing, wherein the ceramic bearing is accommodated and arranged in an area within a range of 1/2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991040203U JP2524847Y2 (en) | 1991-05-01 | 1991-05-01 | Ceramic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991040203U JP2524847Y2 (en) | 1991-05-01 | 1991-05-01 | Ceramic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04126017U JPH04126017U (en) | 1992-11-17 |
| JP2524847Y2 true JP2524847Y2 (en) | 1997-02-05 |
Family
ID=31921311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991040203U Expired - Lifetime JP2524847Y2 (en) | 1991-05-01 | 1991-05-01 | Ceramic bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524847Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0107615D0 (en) * | 2001-03-27 | 2001-05-16 | Hansen Transmissions Int | Roller bearing assembly |
| JP5462593B2 (en) * | 2009-11-06 | 2014-04-02 | 株式会社日立製作所 | Centrifugal compressor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62194914U (en) * | 1986-05-31 | 1987-12-11 |
-
1991
- 1991-05-01 JP JP1991040203U patent/JP2524847Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04126017U (en) | 1992-11-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19960820 |
|
| EXPY | Cancellation because of completion of term |