JP2000274443A - Lubricating and cooling device for bearing - Google Patents
Lubricating and cooling device for bearingInfo
- Publication number
- JP2000274443A JP2000274443A JP11079318A JP7931899A JP2000274443A JP 2000274443 A JP2000274443 A JP 2000274443A JP 11079318 A JP11079318 A JP 11079318A JP 7931899 A JP7931899 A JP 7931899A JP 2000274443 A JP2000274443 A JP 2000274443A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- lubrication
- bearing
- oil
- ring groove
- 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
Landscapes
- Mounting Of Bearings Or Others (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷却効率の高いこ
ろがり軸受の潤滑、冷却装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rolling bearing lubrication and cooling device having high cooling efficiency.
【０００２】[0002]
【従来の技術】ころがり軸受の潤滑、冷却装置として
は、種々のものが提案されている。2. Description of the Related Art Various lubrication and cooling devices for rolling bearings have been proposed.
【０００３】図６は、オイルとエアにより潤滑と冷却を
行なう装置である。ころがり軸受１０は、アウターレー
ス１１と、インナーレース１２の間にボール１３がリテ
ーナ１４で保持された状態で挿入され、アウターレース
１１とインナーレースが相対回転する。潤滑、冷却ノズ
ル２０は、ボール１３と、リテーナ１４の空間に対向す
る噴射穴２１，２２を有し、ミキシングバルブ２３から
の流体をボールとレースの間に供給する。ミキシングバ
ルブ２３には、オイル２４とエア２５が供給され、ミキ
シングバルブ２３は、オイル２４とエア２５を混合して
混合流体２６を生成し、噴射穴２１，２２から噴射す
る、このオイルとエアの混合流体２６により、ころがり
軸受の潤滑と冷却が達成される。FIG. 6 shows an apparatus for lubricating and cooling with oil and air. The rolling bearing 10 is inserted between the outer race 11 and the inner race 12 while the ball 13 is held by the retainer 14, and the outer race 11 and the inner race rotate relative to each other. The lubrication / cooling nozzle 20 has injection holes 21 and 22 facing the space of the ball 13 and the retainer 14, and supplies the fluid from the mixing valve 23 between the ball and the race. The mixing valve 23 is supplied with oil 24 and air 25, and the mixing valve 23 mixes the oil 24 and air 25 to generate a mixed fluid 26, which is injected from the injection holes 21 and 22. The mixed fluid 26 achieves lubrication and cooling of the rolling bearing.
【０００４】図７は、オイルミストによる潤滑と、冷却
装置を示す。霧吹き装置３０には、オイル３１とエア３
２が供給され、オイルミストが生成される。オイルミス
ト３３は、潤滑冷却ノズル２０の噴射穴２１，２２か
ら、ころがり軸受１０に供給される。FIG. 7 shows lubrication by an oil mist and a cooling device. Oil 31 and air 3
2 is supplied to generate oil mist. The oil mist 33 is supplied to the rolling bearing 10 from the injection holes 21 and 22 of the lubrication cooling nozzle 20.
【０００５】図８は、ジェット潤滑装置を示し、オイル
タンク４２内のオイル４１をポンプ４０で加工し、噴射
穴２１，２２からオイルのジェット流４３をころがり軸
受１０に供給して、潤滑と冷却を強制的に行なう。FIG. 8 shows a jet lubricating apparatus, in which oil 41 in an oil tank 42 is processed by a pump 40, and a jet 43 of oil is supplied to the rolling bearings 10 from the injection holes 21 and 22 to lubricate and cool. Forcibly.
【０００６】図９は、オイルジェットによるアンダーレ
ース潤滑装置を示す。ころがり軸受１０のインナーレー
ス１２は、主軸５０を支持する。主軸５０は中心穴５２
を有しインナーレース１２を貫通する小径穴５１を有す
る。オイルポンプ４０からのオイルジェット４３は、主
軸中心穴５２から小径穴５１を通り、インナーレース１
２の内部に強制的に注入する。例えば、特開平６−６６
３２４号公報は、エアによるころがり軸受の冷却装置を
開示する。FIG. 9 shows an under-race lubrication device using an oil jet. The inner race 12 of the rolling bearing 10 supports the main shaft 50. The main shaft 50 has a center hole 52
And a small-diameter hole 51 penetrating the inner race 12. The oil jet 43 from the oil pump 40 passes through the small hole 51 from the center hole 52 of the main shaft and passes through the inner race 1.
2 forcibly. For example, JP-A-6-66
No. 324 discloses a cooling device for a rolling bearing by air.
【０００７】[0007]
【発明が解決しようとする課題】ころがり軸受の潤滑方
式としては、グリース潤滑は最も基本的な潤滑方式であ
るが、高速回転主軸や熱変位を嫌う装置の場合は発熱が
大きいため採用できない。Grease lubrication is the most basic lubrication method for rolling bearings, but cannot be adopted for high-speed rotating spindles and devices that dislike thermal displacement because of large heat generation.
【０００８】ジェット潤滑およびアンダーレース潤滑は
大量の潤滑油を軸受に直接供給するため、潤滑および冷
却性能は優れているが、潤滑油のシール技術や潤滑油の
冷却装置が大がかりになる。[0008] Jet lubrication and under-race lubrication provide excellent lubrication and cooling performance because a large amount of lubricating oil is supplied directly to the bearing, but the lubricating oil sealing technology and the lubricating oil cooling device become large.
【０００９】オイルエア潤滑およびオイルミスト潤滑
は、エアと少量の潤滑油を混合させ潤滑油ノズルより軸
受に供給する方法で、発熱も少なく潤滑油の処理も必要
ないため装置が小さく最も普及している。Oil-air lubrication and oil-mist lubrication are methods in which air and a small amount of lubricating oil are mixed and supplied to a bearing from a lubricating oil nozzle. .
【００１０】しかし、オイルエア潤滑、オイルミスト潤
滑を使用して回転主軸の高速化、高精度化をさらに進め
ようとした場合、何らかの対策が必要となる。そこで本
発明は、オイルエア潤滑、オイルミスト潤滑の潤滑性能
は維持しながら、冷却効率を飛躍的に向上させるノズル
を提案する。[0010] However, if it is intended to further increase the speed and accuracy of the rotating spindle by using oil-air lubrication or oil-mist lubrication, some countermeasures are required. Therefore, the present invention proposes a nozzle that dramatically improves the cooling efficiency while maintaining the lubrication performance of oil-air lubrication and oil mist lubrication.
【００１１】[0011]
【課題を解決するための手段】本発明の軸受の潤滑、冷
却装置は、基本的な手段として、リング状の本体と、本
体の軸受に対向する側面に設けられて潤滑油を供給する
潤滑油噴射穴と、本体の側面の潤滑油噴射穴と干渉しな
い位置に設けられる複数の冷却用エアの噴射穴を備える
ものである。そして、リング状の本体の外周部に設けら
れて潤滑油噴射穴に連結される第１のリング溝と、第１
のリング溝に並列に設けられて冷却用エアの噴射穴に連
結される第２のリング溝を備えることができる。A lubricating and cooling device for a bearing according to the present invention includes a ring-shaped main body and a lubricating oil which is provided on a side surface of the main body facing the bearing and supplies lubricating oil. It has an injection hole and a plurality of cooling air injection holes provided at positions not interfering with the lubricating oil injection hole on the side surface of the main body. A first ring groove provided on an outer peripheral portion of the ring-shaped main body and connected to the lubricating oil injection hole;
And a second ring groove provided in parallel with the ring groove of the second and connected to the cooling air injection hole.
【００１２】さらに、第２のリング溝に冷却用エアを供
給する装置を備え、冷却用エアを供給する装置は、エア
を室温よりも低温に冷却する手段を備えることもでき
る。[0012] Further, a device for supplying cooling air to the second ring groove may be provided, and the device for supplying cooling air may include means for cooling the air to a temperature lower than room temperature.
【００１３】[0013]
【発明の実施の形態】図１は、本発明の全体構成を示す
説明図、図２は図１のＡ矢視図、図３は図１のＢ矢視
図、図４及び図５はノズル装置の要部の拡大断面図であ
る。全体を符号１００で示すノズル装置は、リング状の
ノズル本体１１０を有し、ころがり軸受１０に隣接して
配設される。ころがり軸受１０は、アウターレース１
１、インナーレース１２を有し、ボール１３がリテーナ
１４で保持される。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an explanatory view showing the entire structure of the present invention, FIG. 2 is a view as seen from an arrow A in FIG. 1, FIG. 3 is a view as seen from an arrow B in FIG. It is an expanded sectional view of the important section of a device. The nozzle device, generally designated by the reference numeral 100, has a ring-shaped nozzle body 110 and is disposed adjacent to the rolling bearing 10. The rolling bearing 10 includes the outer race 1
1, having an inner race 12, and a ball 13 held by a retainer 14.
【００１４】ノズル本体１１０は、２本のリング溝１２
０，１４０が並列して設けられる。第１のリング溝１２
０は、本体の外周部に向けて開口し、オイルタンク２１
０のオイルがポンプ２００でエアと混ざり合って加圧さ
れ、オイルミストとなってライン２２０を介して導入さ
れる。The nozzle body 110 has two ring grooves 12.
0 and 140 are provided in parallel. First ring groove 12
0 is open toward the outer peripheral portion of the main body, and the oil tank 21
The oil of No. 0 is mixed with air by the pump 200 and pressurized, and is introduced as an oil mist through the line 220.
【００１５】第１のリング溝１２０は、ノズル本体１１
０の内側に向かう半径方向の有底穴１２１を有する。本
実施例にあっては、２本の有底穴１２１が線対称に配設
されている。この有底穴１２１の個数は適宜に選択でき
る。この有底穴１２１は、ころがり軸受１０側に開口す
る２個の噴射穴１２２，１２４を有する。この２個の噴
射穴１２２，１２４は、アウターレース１１とインナー
レース１２の間隔のレースとボールの転動面に向けて開
口される。The first ring groove 120 is provided in the nozzle body 11
It has a bottomed hole 121 in the radial direction directed toward the inside of 0. In this embodiment, two bottomed holes 121 are arranged line-symmetrically. The number of the bottomed holes 121 can be appropriately selected. The bottomed hole 121 has two injection holes 122 and 124 that open to the rolling bearing 10 side. The two injection holes 122 and 124 are opened toward the race and the ball rolling surface at an interval between the outer race 11 and the inner race 12.
【００１６】第１のリング溝１２０に供給されたオイル
は、２本の有底穴１２１の噴射穴１２２，１２４から噴
射され、ボール１３とアウターレース１１、インナーレ
ース１２の間の転動面を潤滑する。ノズル本体１１０の
第１のリング溝１２０に隣接して設けられる第２のリン
グ溝１４０は、本体１１０の外側に開口し、エア供給源
３００からのエアがライン３１０を介して供給される。The oil supplied to the first ring groove 120 is jetted from the jet holes 122 and 124 of the two bottomed holes 121 to form a rolling surface between the ball 13 and the outer race 11 and the inner race 12. Lubricate. A second ring groove 140 provided adjacent to the first ring groove 120 of the nozzle main body 110 opens outside the main body 110, and air from an air supply source 300 is supplied through a line 310.
【００１７】第２のリング溝１４０は、ころがり軸受の
ボール転動面に向けて開口される複数の噴射穴１４２に
連結される。噴射穴１４２は円周上に多数設けられる。
その直径寸法は１ｍｍ〜５ｍｍ程度の穴が適当である。The second ring groove 140 is connected to a plurality of injection holes 142 opened toward the ball rolling surface of the rolling bearing. A large number of injection holes 142 are provided on the circumference.
A hole having a diameter of about 1 mm to 5 mm is appropriate.
【００１８】エア供給源３００は、通常のエアコンプレ
ッサを使用して、室温のエアを圧縮して供給するもので
あってもよいが、好ましくは、−１０℃〜−２０℃の冷
却風を供給する装置を使用することにより、冷却効果の
向上を図ることができる。ライン３１０を介して第２の
リング溝１４０に供給される冷却エアは、噴射穴１４２
からころがり軸受１０のボール転動面に向けて噴射さ
れ、転動面に発生する摩擦熱を冷却する。The air supply source 300 may use a normal air compressor to compress and supply air at room temperature, but preferably supplies cooling air at -10 ° C to -20 ° C. By using the device that performs the cooling, the cooling effect can be improved. The cooling air supplied to the second ring groove 140 via the line 310
It is injected toward the ball rolling surface of the rolling bearing 10 and cools the frictional heat generated on the rolling surface.
【００１９】なお、潤滑油の噴射穴１２２，１２４の有
底穴１２１との連通部１２２ａ，１２４ａとエアの噴射
穴１４２とリング溝１４０との連通部１４２ａは、流体
研磨によってＲ状に加工され、スムーズな噴射が達成さ
れる。The communicating portions 122a and 124a of the lubricating oil injection holes 122 and 124 with the bottomed holes 121 and the communicating portion 142a of the air injection hole 142 and the ring groove 140 are formed into an R shape by fluid polishing. , Smooth injection is achieved.
【００２０】[0020]
【発明の効果】本発明によれば、主軸等を支持するころ
がり軸受の潤滑を確保しつつ、発熱に対する冷却性を向
上することができる。実験によれば、通常の潤滑、冷却
方式では、回転中に１０℃の温度上昇が確認された軸受
に本装置を使用し、−１０℃の冷風を用いることで、５
℃の温度上昇に改善された。冷風量と温度の最適化によ
り、更なる効果を得られるものである。According to the present invention, the cooling performance against heat generation can be improved while ensuring the lubrication of the rolling bearing supporting the main shaft and the like. According to the experiment, in the normal lubrication and cooling system, this device was used for a bearing whose temperature was found to rise by 10 ° C. during rotation, and by using cold air at −10 ° C.
The temperature was improved by ° C. Further effects can be obtained by optimizing the amount of cold air and the temperature.
【図１】本発明装置の全体構成を示す説明図。FIG. 1 is an explanatory view showing the overall configuration of a device of the present invention.
【図２】図１のＡ矢視図。FIG. 2 is a view taken in the direction of arrow A in FIG. 1;
【図３】図１のＢ矢視図。FIG. 3 is a view taken in the direction of arrow B in FIG. 1;
【図４】本発明装置の要部の拡大図。FIG. 4 is an enlarged view of a main part of the device of the present invention.
【図５】本発明装置の要部の拡大図。FIG. 5 is an enlarged view of a main part of the device of the present invention.
【図６】従来の装置の説明図。FIG. 6 is an explanatory view of a conventional device.
【図７】従来の装置の説明図。FIG. 7 is an explanatory view of a conventional device.
【図８】従来の装置の説明図。FIG. 8 is an explanatory view of a conventional device.
【図９】従来の装置の説明図。FIG. 9 is an explanatory view of a conventional device.
１０ ころがり軸受 １１ アウターレース １２ インナーレース １３ ボール １４ リテーナ １００ 潤滑、冷却ノズル装置 １１０ ノズル本体 １２０ 第１のリング溝 １２２，１２４ オイル噴射穴 １４０ 第２のリング溝 １４２ エア噴射穴 ２００ オイルポンプ ３００ エア供給源 DESCRIPTION OF SYMBOLS 10 Rolling bearing 11 Outer race 12 Inner race 13 Ball 14 Retainer 100 Lubrication and cooling nozzle device 110 Nozzle main body 120 First ring groove 122,124 Oil injection hole 140 Second ring groove 142 Air injection hole 200 Oil pump 300 Air supply source
Claims (3)
軸受の潤滑、冷却装置であって、 リング状の本体と、本体の軸受に対向する側面に設けら
れて潤滑油を供給する潤滑油噴射穴と、本体の側面の潤
滑油噴射穴と干渉しない位置に設けられる複数の冷却用
エアの噴射穴を備える軸受の潤滑、冷却装置。1. A lubrication and cooling device for a bearing mounted adjacent to a race of a bearing, comprising: a ring-shaped main body; and a lubricating oil injection hole provided on a side surface of the main body facing the bearing for supplying lubricating oil. And a bearing lubrication / cooling device including a plurality of cooling air injection holes provided at positions not interfering with the lubricating oil injection holes on the side surface of the main body.
滑油噴射穴に連結される第１のリング溝と、第１のリン
グ溝に並列に設けられて冷却用エアの噴射穴に連結され
る第２のリング溝を備える請求項１記載の軸受の潤滑、
冷却装置。2. A first ring groove provided on an outer peripheral portion of a ring-shaped main body and connected to a lubricating oil injection hole, and connected to a cooling air injection hole provided in parallel with the first ring groove. The lubrication of a bearing according to claim 1, further comprising a second ring groove to be provided.
Cooling system.
装置を備え、冷却用エアを供給する装置は、エアを室温
よりも低温に冷却する手段を備える請求項２記載の軸受
の潤滑、冷却装置。3. The lubrication of a bearing according to claim 2, further comprising a device for supplying cooling air to the second ring groove, wherein the device for supplying cooling air includes means for cooling the air to a temperature lower than room temperature. ,Cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07931899A JP3924980B2 (en) | 1999-03-24 | 1999-03-24 | Bearing lubrication and cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07931899A JP3924980B2 (en) | 1999-03-24 | 1999-03-24 | Bearing lubrication and cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000274443A true JP2000274443A (en) | 2000-10-03 |
| JP3924980B2 JP3924980B2 (en) | 2007-06-06 |
Family
ID=13686534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07931899A Expired - Fee Related JP3924980B2 (en) | 1999-03-24 | 1999-03-24 | Bearing lubrication and cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3924980B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010207927A (en) * | 2009-03-06 | 2010-09-24 | Honda Motor Co Ltd | Assembling apparatus |
| JP2014062620A (en) * | 2012-09-24 | 2014-04-10 | Ntn Corp | Cooling structure for bearing device |
| US20160084313A1 (en) * | 2013-05-10 | 2016-03-24 | Ntn Corporation | Rolling bearing device |
| US9541137B2 (en) | 2012-09-24 | 2017-01-10 | Ntn Corporation | Cooling structure for bearing device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022047039A (en) | 2020-09-11 | 2022-03-24 | シンフォニアテクノロジー株式会社 | Lubricating oil supply device and rotation test device including the same |
-
1999
- 1999-03-24 JP JP07931899A patent/JP3924980B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010207927A (en) * | 2009-03-06 | 2010-09-24 | Honda Motor Co Ltd | Assembling apparatus |
| JP2014062620A (en) * | 2012-09-24 | 2014-04-10 | Ntn Corp | Cooling structure for bearing device |
| US9541137B2 (en) | 2012-09-24 | 2017-01-10 | Ntn Corporation | Cooling structure for bearing device |
| US10280980B2 (en) | 2012-09-24 | 2019-05-07 | Ntn Corporation | Cooling structure for bearing device |
| US20160084313A1 (en) * | 2013-05-10 | 2016-03-24 | Ntn Corporation | Rolling bearing device |
| US9581198B2 (en) * | 2013-05-10 | 2017-02-28 | Ntn Corporation | Rolling bearing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3924980B2 (en) | 2007-06-06 |
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