JPH04126017U - ceramic bearings - Google Patents
ceramic bearingsInfo
- Publication number
- JPH04126017U JPH04126017U JP4020391U JP4020391U JPH04126017U JP H04126017 U JPH04126017 U JP H04126017U JP 4020391 U JP4020391 U JP 4020391U JP 4020391 U JP4020391 U JP 4020391U JP H04126017 U JPH04126017 U JP H04126017U
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- elastic support
- bearing body
- support member
- 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.)
- Granted
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 17
- 229920003051 synthetic elastomer Polymers 0.000 claims abstract description 11
- 239000005061 synthetic rubber Substances 0.000 claims abstract description 11
- 230000004323 axial length Effects 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 abstract description 7
- 238000003754 machining Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
Landscapes
- Support Of The Bearing (AREA)
Abstract
(57)【要約】
【目的】 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ようにする。
【構成】 軸受ハウジング１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を介して支持する。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を設ける。この場合、複数個のＯ
リング４を、軸受体２の軸方向中心部で、かつその軸受
体２の軸方向長さＬの１／２の範囲内の領域に収容配置
する。複数個のＯリング４は、円筒状合成ゴムに代えて
もよい。
(57) [Summary] [Purpose] Even when the shaft is tilted due to bending,
To enable an elastic support member to sufficiently follow the inclination and to surely prevent occurrence of vibration, damage to a shaft, etc. [Structure] A cylindrical ceramic bearing body 2 is supported by a bearing housing 1 via a metal retainer 3. A plurality of O-rings 4 are provided between the bearing housing 1 and the retainer 3 as elastic support members. In this case, multiple O
The ring 4 is housed in the axial center of the bearing body 2 and within a range of 1/2 of the axial length L of the bearing body 2 . The plurality of O-rings 4 may be replaced with cylindrical synthetic rubber.
Description
【０００１】0001
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。 This invention relates to ceramic bearings applied to vertical shaft pumps, horizontal shaft pumps, etc. Ru.
【０００２】0002
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。 Conventionally, it has been used as a bearing for vertical shaft pumps or horizontal shaft pumps, etc. due to its excellent wear resistance and heat resistance. Ceramic bearings are used. This ceramic bearing is, for example, shown in Figure 3. As shown in FIG. An elastic support is provided between the bearing housing 1 and the retainer 3. It is configured such that a plurality of O-rings 4 are provided as holding 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。0003 Moreover, as shown in FIG. 4, instead of a plurality of O-rings as the elastic support member, Some are provided with a cylindrical synthetic rubber 5.
【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。0004 In this way, an elastic support member such as a plurality of O-rings 4 or cylindrical synthetic rubber 5 is used. This eliminates the mechanical drawback of the ceramic bearing body 2, which is inferior in impact resistance. I'm overcoming it.
【０００５】[0005]
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。 However, conventionally, as shown in FIGS. 3 and 4, a plurality of O-rings 4 or The elastic support member such as the cylindrical synthetic rubber 5 has a length that spans the entire axial region of the bearing body 2. It is arranged to accommodate. For this reason, the supported shaft 6 may be tilted due to bending or the like. In such a case, the elastic support member cannot follow the inclination, and the bearing body 2 hits the shaft 6 unevenly. Vibrations may occur and the bearing body 2 or shaft 6 may 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。[0006] This invention was made to solve the problems of the conventional technology, and the axis is Even if the elastic support member is tilted due to bending, etc., the elastic support member will be able to sufficiently follow the tilt. To provide a ceramic bearing that can reliably prevent vibrations, shaft damage, etc. With the goal.
【０００７】[0007]
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 problems, the present invention has developed a cylindrical ceramic in the bearing housing. A mixed bearing body is supported via a metal retainer, and the bearing housing and retainer are connected to each other. between the inner In the ceramic bearing provided with It is housed in the center and within 1/2 of the axial length of the bearing body. It is.
【０００８】[0008]
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 provided between the bearing housing and the retainer The member is located at the axial center of the bearing body and within a range of 1/2 of the axial length of the bearing body. Since the elastic support member is housed in the inner area, it is possible to provide the elastic support member with a self-aligning function. This allows the elastic support member to remain stable even when the shaft is tilted due to bending, etc. To be able to sufficiently follow the slope and to reliably prevent vibrations and damage to the shaft. Become.
【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。[0009] In addition, by providing a self-aligning function, the bearing housing and its housing When machining the mounting part, there is no need to excessively increase concentric machining accuracy, reducing machining costs. It becomes possible to reduce that amount.
【００１０】0010
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。 Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 and 2. theory For ease of explanation, the same reference numerals as those in Figs. 3 and 4 are used for parts corresponding to the conventional example. use
【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。[0011] FIG. 1 shows a first embodiment of the invention. This embodiment is similar to the conventional example shown in Fig. 3. Inside the bearing housing 1, a cylindrical ceramic bearing body 2 is attached to a metal retainer. between the bearing housing 1 and the retainer 3. A plurality of O-rings 4 are provided.
【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。0012 In this embodiment, the plurality of O-rings 4 are arranged in the axial direction of the bearing body 2. The bearing body is housed in an area within a range 1 of 1/2 of the axial length L of the bearing body. It is. In other words, the distance 1 between the plurality of O-rings 4 arranged at both ends is It is installed within a range of 1/2 of the axial length L of the body 2, and all these O-rings 4 are connected to the shaft. It is arranged at the center of the receiver 2 in the axial direction.
【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。[0013] According to such a configuration, the bearing housing 1 is provided between the bearing housing 1 and the retainer 3. A plurality of O-rings 4 are provided at the axial center of the bearing body 2 and at 1/1/2 of the axial length of the bearing body 2. Since the O-ring 4 is accommodated in the area within the range of 2, the O-ring 4 is given a self-aligning function. The state will be as follows.
【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。[0014] Bearings with the above dimensions were then installed in a number of actual vertical and horizontal pumps. When the application was applied and the shaft 6 was operated, the shaft 6 supported by the bearing body 2 tilted due to bending etc. Even in such a case, the O-ring 4 can sufficiently follow the inclination and prevent vibrations and damage to the shaft. It has been recognized that the occurrence of this disease 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。[0015] In addition, by providing a self-aligning function, the bearing housing 1 and its housing There is no need to excessively increase concentric machining accuracy when machining the mounting part of the It has also become possible to reduce this amount by that amount.
【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。[0016] Next, FIG. 2 shows a second embodiment of the present invention. This embodiment is different from the first embodiment described above. The point is that instead of the plurality of O-rings 4 of the first embodiment as the elastic support member, The point is that a cylindrical synthetic rubber 5 is provided. The other configurations are the same as those of the first embodiment. Therefore, the same members are given the same reference numerals as in FIG. 1, and redundant explanation 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。[0017] In this embodiment, the axial length 1 of the cylindrical synthetic rubber 5 is the axial length L of the bearing body 2. This cylindrical synthetic rubber 5 is set within a range of 1/2 of the axial direction of the bearing body 2. It is located in
【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。[0018] Even with this configuration, the shaft 6 supported by the bearing body 2 is prevented from being tilted due to bending or the like. Even if it is tilted, the cylindrical synthetic rubber 5 can sufficiently follow the tilt, preventing vibrations and shafts. It has been recognized that it is possible to reliably prevent damage to the Processing of the bearing housing 1 and the mounting part of the housing by adding functions In this case, there is no need to excessively increase concentric machining accuracy, reducing machining costs accordingly. It is now possible to do so.
【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。[0019] In each of the above embodiments, the elastic support member is the O-ring 4 or the cylindrical synthetic rubber 5. However, the elastic support member is not limited to these configurations. For example, coils Various configurations can be applied, such as a pull-shaped configuration.
【００２０】[0020]
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 The elastic support member is located at the axial center of the bearing body and within the axial length of the bearing body. Since it is housed in an area within 1/2 of the area, the elastic support member has a self-aligning function. As a result, even if the shaft is tilted due to bending, etc., The elastic support member can fully follow the inclination, reliably preventing vibrations and damage to the shaft. Moreover, by providing the self-aligning function, the bearing housing and its There is no need to excessively increase concentric machining accuracy when machining the mounting part of the Uzing. Excellent effects such as being able to reduce processing costs to that extent 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 showing 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 1 Bearing housing 2 Bearing body 3 Retainer 4 O-ring (elastic support member) 5 Cylindrical synthetic rubber (elastic support member) 6 axes
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。Claim 1: A cylindrical ceramic bearing body is supported within a bearing housing via a metal retainer, and a plurality of O-rings, cylindrical synthetic rubber, etc. are provided between the bearing housing and the retainer. In the ceramic bearing provided with an elastic support member, the elastic support member is located at the axial center of the bearing body and within 1 part of the axial length of the bearing body.
A ceramic bearing characterized in that it is accommodated in an area within a range of /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 true JPH04126017U (en) | 1992-11-17 |
| JP2524847Y2 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004522090A (en) * | 2001-03-27 | 2004-07-22 | ハンセン・トランスミッションズ・インターナショナル・ナムローゼフェンノートシャップ | Roller bearing assembly |
| JP2011099389A (en) * | 2009-11-06 | 2011-05-19 | Hitachi Plant Technologies Ltd | Centrifugal compressor |
Citations (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
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62194914U (en) * | 1986-05-31 | 1987-12-11 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004522090A (en) * | 2001-03-27 | 2004-07-22 | ハンセン・トランスミッションズ・インターナショナル・ナムローゼフェンノートシャップ | Roller bearing assembly |
| JP2011099389A (en) * | 2009-11-06 | 2011-05-19 | Hitachi Plant Technologies Ltd | Centrifugal compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2524847Y2 (en) | 1997-02-05 |
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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 |