JPH01242813A - Ceramic bearing - Google Patents
Ceramic bearingInfo
- Publication number
- JPH01242813A JPH01242813A JP6742688A JP6742688A JPH01242813A JP H01242813 A JPH01242813 A JP H01242813A JP 6742688 A JP6742688 A JP 6742688A JP 6742688 A JP6742688 A JP 6742688A JP H01242813 A JPH01242813 A JP H01242813A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- ceramic bearing
- ceramic
- load
- compressive load
- 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
- 239000000919 ceramic Substances 0.000 title claims abstract description 40
- 239000002184 metal Substances 0.000 abstract description 11
- 238000010008 shearing Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000006378 damage Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Support Of The Bearing (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、セラミック軸受に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to ceramic bearings.
従来の装置は、特開昭６２−２５１５８８号に記載のよ
うに、片当り荷重がセラミック軸受に加わった時、同じ
方向に軸受も変形してセラミック軸受が平均的に荷重を
受ける様考慮されているが、軸受端部に加わる剪断力、
引張荷重等の考慮が十分なされていなかった。As described in Japanese Patent Application Laid-Open No. 62-251588, conventional devices are designed so that when a one-sided load is applied to a ceramic bearing, the bearing deforms in the same direction so that the ceramic bearing receives the load evenly. However, the shear force applied to the bearing end,
Sufficient consideration was not given to tensile loads, etc.
上記従来技術は、軸受の高片当り荷重、高周速等の条件
下では、軸受端部の破壊、軸受摺動部での発熱冷却が配
慮されておらずセラミック軸受のチッピング摩耗、端部
の破壊等の問題があった。The above conventional technology does not take into account the destruction of the bearing end and the cooling of the heat generated in the sliding part of the bearing under conditions such as high bearing per-side load and high circumferential speed, leading to chipping wear of the ceramic bearing and damage to the end. There were problems such as destruction.
本発明の目的は、セラミック軸受を軸受外径より少し小
さい軸受バックメタルに焼バメし、軸受内径より少し大
きいプレートで、軸受両端部に圧縮荷重を加えることに
より、軸受に加わる片当り荷重が、セラミック軸受には
圧縮荷重が加わる様になり、セラミック軸受の破壊を防
止することにある。The object of the present invention is to shrink-fit a ceramic bearing to a bearing back metal that is slightly smaller than the outer diameter of the bearing, and apply a compressive load to both ends of the bearing using plates that are slightly larger than the inner diameter of the bearing, thereby reducing the uneven load applied to the bearing. A compressive load is applied to the ceramic bearing, and the purpose is to prevent the ceramic bearing from breaking.
又、軸受バンクメタル下部にスクリューを設ける構造に
より、スクリューが回転しポンプ内の白液を軸受摺動面
に強制給水し水膜を形成させることにより、高周速時に
おける発熱を冷却し、チッピング摩耗を防止させ軸受の
性能向上させたものである。In addition, due to the structure in which a screw is installed at the bottom of the bearing bank metal, the screw rotates and forcibly supplies the white liquid inside the pump to the bearing sliding surface, forming a water film, which cools the heat generated at high circumferential speeds and prevents chipping. This prevents wear and improves bearing performance.
上記目的は、セラミック軸受を軸受外径よりも少し小さ
い軸受バックメタルに焼バメし、軸受内径よりも少し大
きくしたプレートで、軸受両端部に圧縮荷重を与えて取
付け、軸受バックメタルの下部にスクリューが取付いて
いる構造となっていることにより、達成される。The above purpose is to shrink-fit a ceramic bearing to a bearing back metal that is slightly smaller than the bearing outside diameter, install a plate that is slightly larger than the bearing inside diameter by applying a compressive load to both ends of the bearing, and then attach a screw to the bottom of the bearing back metal. This is achieved by having a structure in which
セラミック軸受を軸受外径より少し小さい軸受バックメ
タルに焼バメ、軸受内径よりも少し大きいプレートで圧
縮荷重を与える構造により、セラミック軸受全体に圧縮
荷重を与える為、軸受に加わる片当り荷重が、セラミッ
ク軸受には従来の様に剪断力、引張荷重が働かず、圧縮
荷重のみが働くので蓋片当り荷重においても軸受を破壊
することなく使用出来る６
又、軸受バンクメタルの下部にスクリューを設けること
により、スクリューの回転でポンプ内の白液を、軸受摺
動面に強制的に給水し水膜を形成させ、高周速時におけ
る軸受摺動部の発熱を防止し、チッピング摩耗を回避出
来る。The ceramic bearing is shrink-fitted to the bearing back metal, which is slightly smaller than the bearing's outer diameter, and the compressive load is applied using a plate that is slightly larger than the bearing's inner diameter. This applies the compressive load to the entire ceramic bearing, so the uneven load applied to the bearing is reduced by the ceramic bearing. Unlike conventional bearings, shearing force and tensile load do not act on the bearing, but only compressive load acts on it, so it can be used even under load per cover piece without damaging the bearing6.Also, by providing a screw at the bottom of the bearing bank metal, By rotating the screw, the white liquid in the pump is forcibly supplied to the bearing sliding surface to form a water film, which prevents heat generation in the bearing sliding part at high circumferential speeds and avoids chipping wear.
以下本発明の一実施例を図により説明する。 An embodiment of the present invention will be described below with reference to the drawings.
セラミック軸受１を、セラミック軸受の外径より少し小
さく、又セラミック軸受長さよりも少し小さい軸受バッ
クメタル２に焼バメし、圧縮荷重を加えプレート３によ
りセラミック軸受の両端に圧縮荷重を加えている。軸受
バックメタル２の外周に、緩衝材４．！ｍ材ケース５で
セグメント型セラミック軸受を構成し、軸受ケース６に
取付けている。A ceramic bearing 1 is shrink-fitted to a bearing back metal 2 that is a little smaller than the outer diameter of the ceramic bearing and a little smaller than the length of the ceramic bearing, and a compressive load is applied to both ends of the ceramic bearing by a plate 3. A cushioning material 4 is placed around the outer periphery of the bearing back metal 2. ! A segment type ceramic bearing is configured with a m-material case 5 and is attached to a bearing case 6.
セラミック軸受に片当り荷重が加わった時、緩衝材４が
変形することにより、軸受バックメタルが片当り荷重方
向に追従し、セラミック軸受が平均的に荷重を受ける。When an uneven load is applied to the ceramic bearing, the cushioning material 4 deforms, so that the bearing back metal follows the direction of the uneven load, and the ceramic bearing receives the load evenly.
この時セラミック軸受端部には、従来の構造では剪断力
、引張荷重が加わりやすく軸受端部より破壊しやすかっ
た。At this time, in the conventional structure, shearing force and tensile load are easily applied to the ceramic bearing end and it is more likely to break than the bearing end.
本実施例によれば、セラミックが圧縮荷重に強いことか
ら、プレート３でセラミック軸受両端に、あらかじめ圧
縮荷重を与えることにより、上記の様に片当り荷重が加
わってもセラミック軸受端部には圧縮荷重のみが働くの
で、セラミック軸受の破壊防止が出来る効果がある。According to this embodiment, since ceramic is strong against compressive loads, by applying a compressive load in advance to both ends of the ceramic bearing with the plate 3, even if a one-sided load is applied as described above, the ends of the ceramic bearing will not be compressed. Since only the load is applied, it has the effect of preventing destruction of the ceramic bearing.
又、軸７．軸スリーブ８の下部に、スクリュー９が取付
いている。セラミック軸受摺動部は、ある周速まで軸受
摺動部に水膜が形成されるが、高周速においては軸受摺
動部の水膜が形成されにくくなり、軸受摺動部の発熱に
よりセラミック軸受にチッピング摩耗、超硬スリーブに
ヒートクラックが発生し、軸受、スリーブを破壊させ、
軸７゜スクリュー９が回転することにより高周速時にお
いても、軸受摺動部に強制的にポンプ内の白液を給水す
ることにより、セラミック軸受のチッピング摩耗、超硬
スリーブのヒートクラックを防止出来る効果がある。Also, axis 7. A screw 9 is attached to the lower part of the shaft sleeve 8. A water film is formed on the sliding parts of ceramic bearings up to a certain circumferential speed, but at high peripheral speeds it becomes difficult to form a water film on the sliding parts of the bearings, and the heat generated by the sliding parts of the bearings causes the ceramic to Chipping wear occurs on the bearing, heat cracks occur on the carbide sleeve, and the bearing and sleeve are destroyed.
By rotating the shaft 7° screw 9, the white liquid in the pump is forcibly supplied to the sliding parts of the bearing even at high circumferential speeds, thereby preventing chipping wear of ceramic bearings and heat cracking of carbide sleeves. There is a possible effect.
本発明によれば、清水を給水として使用するゴム軸受、
樹脂軸受等と同様の概念で使用でき、かつ従来のセラミ
ック軸受より、過負荷、高周速まで対応することが出来
る効果がある。According to the present invention, a rubber bearing that uses fresh water as a water supply,
It can be used with the same concept as resin bearings, etc., and has the advantage of being able to handle overloads and higher circumferential speeds than conventional ceramic bearings.
図は本発明の一実施例の縦断面図である。
１・・・セラミック軸受、２・・・軸受バックメタル、
３・・・プレート、４・・・緩衝材、５・・・緩衝材ケ
ース、６・・・軸受ケース、７・・・軸、８・・・軸受
スリーブ、９・・・スクリュー。
代理人 弁理士 小川勝男−工〕、
！、、、、ｐ−□The figure is a longitudinal sectional view of one embodiment of the present invention. 1...Ceramic bearing, 2...Bearing back metal,
3...Plate, 4...Buffer material, 5...Buffer material case, 6...Bearing case, 7...Shaft, 8...Bearing sleeve, 9...Screw. Agent: Patent attorney Katsuo Ogawa, ! ,,,,p-□
Claims (1)
ことを特徴としたセラミック軸受。1. A ceramic bearing characterized by applying a compressive load to the outer diameter and both ends of the ceramic bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6742688A JPH01242813A (en) | 1988-03-23 | 1988-03-23 | Ceramic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6742688A JPH01242813A (en) | 1988-03-23 | 1988-03-23 | Ceramic bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01242813A true JPH01242813A (en) | 1989-09-27 |
Family
ID=13344575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6742688A Pending JPH01242813A (en) | 1988-03-23 | 1988-03-23 | Ceramic bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01242813A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012122962A1 (en) * | 2011-03-11 | 2012-09-20 | Ruhrpumpen Gmbh | Method for mounting a hydrodynamic plain bearing, and hydrodynamic plain bearing, in particular of a magnetically coupled pump |
| CN103228889A (en) * | 2010-12-08 | 2013-07-31 | 博格华纳公司 | Exhaust gas turbocharger |
-
1988
- 1988-03-23 JP JP6742688A patent/JPH01242813A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103228889A (en) * | 2010-12-08 | 2013-07-31 | 博格华纳公司 | Exhaust gas turbocharger |
| JP2013545036A (en) * | 2010-12-08 | 2013-12-19 | ボーグワーナー インコーポレーテッド | Exhaust gas turbocharger |
| CN103228889B (en) * | 2010-12-08 | 2015-11-25 | 博格华纳公司 | Exhaust turbine supercharger |
| WO2012122962A1 (en) * | 2011-03-11 | 2012-09-20 | Ruhrpumpen Gmbh | Method for mounting a hydrodynamic plain bearing, and hydrodynamic plain bearing, in particular of a magnetically coupled pump |
| CN103429918A (en) * | 2011-03-11 | 2013-12-04 | 鲁尔泵有限责任公司 | Method for mounting a hydrodynamic plain bearing, and hydrodynamic plain bearing, in particular of a magnetically coupled pump |
| US9057403B2 (en) | 2011-03-11 | 2015-06-16 | Ruhrpumpen Gmbh | Method for mounting a hydrodynamic sliding bearing and hydrodynamic sliding bearing, in particular of a magnetic coupling pump |
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