JPS61218829A - Rolling bearing - Google Patents
Rolling bearingInfo
- Publication number
- JPS61218829A JPS61218829A JP60058442A JP5844285A JPS61218829A JP S61218829 A JPS61218829 A JP S61218829A JP 60058442 A JP60058442 A JP 60058442A JP 5844285 A JP5844285 A JP 5844285A JP S61218829 A JPS61218829 A JP S61218829A
- Authority
- JP
- Japan
- Prior art keywords
- grooves
- lubricant
- rolling bearing
- outer ring
- inner ring
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6659—Details of supply of the liquid to the bearing, e.g. passages or nozzles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/585—Details of specific parts of races of raceways, e.g. ribs to guide the rollers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6637—Special parts or details in view of lubrication with liquid lubricant
- F16C33/6681—Details of distribution or circulation inside the bearing, e.g. grooves on the cage or passages in the rolling elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は、高速増殖炉の機械式ポンプ、燃料移送機構等
に係り、特にナトリウム中で回転軸を支えるに好適なコ
ロガリ軸受に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to mechanical pumps, fuel transfer mechanisms, etc. for fast breeder reactors, and particularly to a rolling bearing suitable for supporting a rotating shaft in sodium.
モータ、ポンプ等の回転軸を支える軸受には、コロガリ
軸受が広く採用されている。コロガリ軸受の転動体に球
を用いたコロガリ軸受の従来例を第７図に示す、第７図
のコロガリ軸受はボールベアリングと呼ばれているもの
で、その構成は内輪ｌと外輪２、この２者が構成する環
状の空間に、球３および保持器４を配したものである。Rolling bearings are widely used as bearings that support the rotating shafts of motors, pumps, etc. Figure 7 shows a conventional example of a rolling bearing that uses balls as rolling elements. A ball 3 and a holder 4 are arranged in an annular space constructed by a person.
球３は４１数個めり、規則正しく配列しである。球３が
接つする内輪１の外周および外輪２の内周には、複数個
の球３が転勤する時のガイドとなる円弧状の４が全周に
わたって設けてろる。通常内輪１ｒｉその内ＩＩＩＩを
ｇＩＬ通する回転軸に固定してめり、回転軸と共に回転
する。一方外輪２は固定した軸受台等に固定しである。There are about 41 balls 3, arranged regularly. On the outer periphery of the inner ring 1 and the inner periphery of the outer ring 2 with which the balls 3 come into contact, arc-shaped arcs 4 are provided over the entire circumference to serve as guides when the plurality of balls 3 are transferred. Normally, the inner ring 1ri and its inner ring III are fixed to a rotating shaft through which gIL passes, and rotate together with the rotating shaft. On the other hand, the outer ring 2 is fixed to a fixed bearing stand or the like.
回転する内輪１の運ＩＩＥｌ＋は、外輪２との間に配し
た球３が前記円弧状の４を転勤することによって保持さ
れる。回転軸の半径方向あるいは軸垂直方向のｆｒ貞は
、球３が転動しながらも内輪ｌおよび外輪２に接触して
いることで支えられている。保持器４ｒｔ転勤するａ数
１固の球３の配列を崩さないようにするためのものであ
る。球３の転動は、球３と内輪１および外輪２との接触
面に潤滑剤５を供給することによって、スムーズにおこ
なわれる。潤滑剤５には通常油を用いている。この様な
回転軸を支えるのに好適なコロガリ軸受はす） ＩＪウ
ム機器、例えば壁械式ナトリウムポンプや燃料移送機構
等の回転軸や駆動力伝達軸の軸受としては採用されにく
い。その理由は、潤滑剤となるべき溶融ナトリウムの潤
滑性が、油に比べると劣ることにある。潤滑Ｊ漢の性能
は、潤滑剤が有する粘性によって左右される。このこと
を第７図において説明すると、球３と内輪１あるいは外
輪２の接触面と出来る＠滑膜は、球３の転勤によって引
込まれる潤滑剤５によって形成される。The motion of the rotating inner ring 1 is maintained by the ball 3 disposed between the inner ring 1 and the outer ring 2 moving the arcuate 4. The stability of the rotating shaft in the radial direction or perpendicular direction is supported by the fact that the balls 3 are in contact with the inner ring 1 and the outer ring 2 while rolling. This is to prevent the arrangement of the A number 1 balls 3 transferred to the cage 4rt from being disrupted. The rolling of the ball 3 is performed smoothly by supplying lubricant 5 to the contact surfaces between the ball 3 and the inner ring 1 and outer ring 2. The lubricant 5 is usually oil. Rolling bearings suitable for supporting such rotating shafts are difficult to be adopted as bearings for rotating shafts and driving force transmission shafts in industrial equipment such as wall-mounted sodium pumps and fuel transfer mechanisms. The reason for this is that the lubricity of molten sodium, which serves as a lubricant, is inferior to that of oil. The performance of lubricants depends on the viscosity of the lubricant. To explain this with reference to FIG. 7, the synovial membrane formed at the contact surface between the ball 3 and the inner ring 1 or outer ring 2 is formed by the lubricant 5 drawn in by the transfer of the ball 3.
引込まれる潤滑剤５のｔｒｔ、 ＠滑剤５の有する粘性
によって決り、粘性が低い程前記接触面に供給される潤
滑剤５の量は少ない。潤滑油とナトリウムの粘性を比較
すると後者は前者の１／１０以下であり、球３と内輪１
あるいは外輪２との接触面全体に充分な潤滑膜を形成す
るだけの潤滑剤５となるナトリウムを供給するのはむず
かしい。本発明は以上のべた事項を背景に、潤滑性能の
劣る潤滑剤を用いても利用可能なコロガリ軸受に関する
ものである。第７図の公知例としては、「基礎機械設計
（全）」（工学図書（株）、昭和５８手３月）、［転が
り軸受Ｊ （Ｐｒ、 Ａ１１ｌｄｌ （日本檀工（株）
、１９７９手）がある。trt of the lubricant 5 drawn in, @ Determines the viscosity of the lubricant 5, and the lower the viscosity, the smaller the amount of the lubricant 5 supplied to the contact surface. Comparing the viscosity of lubricating oil and sodium, the latter is less than 1/10 of the former, and ball 3 and inner ring 1
Alternatively, it is difficult to supply enough sodium to form the lubricant 5 to form a sufficient lubricant film over the entire contact surface with the outer ring 2. With the above-mentioned background as a background, the present invention relates to a rolling bearing that can be used even with a lubricant having poor lubrication performance. Known examples of Fig. 7 include "Basic Machine Design (Complete)" (Kogaku Tosho Co., Ltd., March 1982), [Rolling Bearing J (Pr, A11ldl) (Nippon Danko Co., Ltd.)
, 1979).
本発明の目的は、溶融ナトリウムを潤滑剤として使用す
るに好適なナトリウム中コロガリ軸受を提供することに
ある。An object of the present invention is to provide a rolling bearing in sodium suitable for using molten sodium as a lubricant.
従来のコロガリ軸受では、転動体（球２円間等）と内、
外輪との接触面に供給する潤滑剤を、内外輪が形成する
ギャップ（アニユラス状の空間）から供給していた。本
発明は、潤滑剤を前記ギャップから供給するだけでなく
、内、外輪の軸方向に設ｅすた流路と、この流路に連通
する内外輪と球の接触面となる円弧状の隣に設けた細い
４からも供 ゛給出来るようにしたものでるる。In conventional rolling bearings, the rolling elements (between two balls, etc.) and the inner,
Lubricant was supplied to the contact surface with the outer ring through a gap (annulus-shaped space) formed by the inner and outer rings. The present invention not only supplies the lubricant through the gap, but also provides a flow path provided in the axial direction of the inner and outer rings, and an arc-shaped adjacent area that is the contact surface between the inner and outer rings and the ball, which communicates with the flow path. It is designed so that it can also be supplied from a thin 4 provided at the top.
このことにより、ナトリウム中におけるコロガリ軸受と
して好適なものになる。This makes it suitable as a rolling bearing in sodium.
以「、本発明の実施例を第１図から第５図により説明す
る。第１図は第７図で説明した、球を転動体に匣用した
コロガリ軸受について本発明を示したものでろる。内輪
ｌおよび外輪２には、下方から前２者の中程まで達する
流路６および７を潤滑剤５の供給路として設ける。この
流路６，７の上端は、球３と内輪ｌおよび外輪２の接触
面となる円弧状の溝に設けた縛８および９と連通する。Hereinafter, embodiments of the present invention will be explained with reference to Figs. 1 to 5. Fig. 1 shows the present invention with respect to the rolling bearing described in Fig. 7, in which balls are used as rolling elements. The inner ring 1 and the outer ring 2 are provided with channels 6 and 7, which reach from below to the middle of the former two, as supply channels for the lubricant 5.The upper ends of these channels 6, 7 are connected to the ball 3, the inner ring 1, and It communicates with ties 8 and 9 provided in the arcuate groove that forms the contact surface of the outer ring 2.
この様子を外輪２の場合を例にして示したものが第２図
である。外輪２と球３との接触面が円弧状の＠１０であ
り、この円弧状溝ｌＯの底部に＃１８が設けであるうこ
の／４８の底ｔｆＩＳは流路６と連通している。円弧状
溝１０に設けた溝８に連通する流路６は１本だけでＶ′
ｉなく、例えば複数個配列した球３の故だけ設け、流路
６の位置を球３の配列間隔と合せて設けることにより、
潤滑剤５を効率よく供給出来る。FIG. 2 shows this situation using the case of the outer ring 2 as an example. The contact surface between the outer ring 2 and the ball 3 is an arcuate @10, and #18 is provided at the bottom of this arcuate groove lO, and the bottom tfIS of this /48 communicates with the flow path 6. There is only one channel 6 communicating with the groove 8 provided in the arcuate groove 10, and V'
For example, by providing only a plurality of balls 3 arranged, and setting the flow path 6 in accordance with the arrangement interval of the balls 3,
The lubricant 5 can be efficiently supplied.
内輪ｌの流路７およびＦｆＩ９も第２図にのべた外輪２
の場合と同様なものを設ける。この様な流路６．７およ
びｇｓ、９を設けることＫより、従来型コロガリ軸受が
内輪１と外輪２とで形成するギャップからたけ潤滑油５
を供給していたのに比較すると、球３と内輪１および外
輪２との接触面に供給される潤滑剤５の量は増加する。The flow passage 7 and FfI9 of the inner ring 1 are also shown in the outer ring 2 shown in FIG.
Provide something similar to the case. By providing such flow passages 6.7 and gs, 9, conventional rolling bearings allow the lubricating oil 5 to flow from the gap formed between the inner ring 1 and the outer ring 2.
The amount of lubricant 5 supplied to the contact surfaces between the ball 3 and the inner ring 1 and outer ring 2 increases.
増加量は流路６および７の１１！Ｉ’ｒ面噴によって決
るので、軸受設計時に決める。第３図１よ、ｇ１図詮よ
び第２図で説明した円弧状の溝ｌＯの円弧の部分に３本
の購８ａ、８ｂ、８ｃおよび９ａ、９ｂ、９ｃを設けた
例でめる。溝の故は、円弧状の＋４１０の取りうる巾に
より、隣８ａ、８ｂ、８ｃおよび９ａ。The increase amount is 11 for channels 6 and 7! It is determined by the I'r surface injection, so it is decided at the time of bearing design. FIG. 3 shows an example in which three grooves 8a, 8b, 8c and 9a, 9b, 9c are provided in the arc portion of the arc-shaped groove lO explained in FIG. g1 and FIG. 2. Because of the groove, the adjacent widths are 8a, 8b, 8c and 9a due to the possible width of the arc-shaped +410.
９ｂ、９ｃめように１本以上４Ｉ数本にすることが出来
る。球３よりも内輪ｌおよび外輪２に接触する面積が大
きい円筒を転動体に用いたコロガリ軸受（ローラベアリ
ング）においても本発明は利用出来る。この様子を示し
たのが第４図である。第４図では、転動体として用いだ
円１′！ｆｆ１１がテーパを持った形のもので、第３図
で示した球３を有するコロガリ軸受に同様の構造となる
う
第５図は、第１図から第４図で説明した外輪２の円弧状
の溝１０に設けた溝８又は８ａ、９ｂ。It is possible to have one or more 4Is, such as 9b and 9c. The present invention can also be used in a rolling bearing (roller bearing) in which a cylinder having a larger area in contact with the inner ring l and outer ring 2 than the ball 3 is used as a rolling element. FIG. 4 shows this situation. In Figure 4, ellipse 1' is used as a rolling element! ff11 has a tapered shape, and has a structure similar to the rolling bearing with the balls 3 shown in FIG. 3. FIG. Groove 8 or 8a, 9b provided in groove 10 of.
８Ｃの代りに円弧状の＄１０の円弧に沿って、溝１２を
複数１色設けたものでｂる。第５図においては、＠滑剤
５は外輪２と球３との接触面に設けた＃１２内に直接内
輪１と外輪２のギャップから供給する。内輪ｌにおいて
も第５図と同様な形となる。第６図は球３に直接溝１３
を設けたもので、１ 球１３の面に遜りし
た潤滑剤５は、球３の転勤と共に球３の溝を通って、球
３と内輪１又は外輪２との接触面に供給される。Instead of 8C, a plurality of grooves 12 of one color are provided along the arc of $10. In FIG. 5, lubricant 5 is directly supplied from the gap between inner ring 1 and outer ring 2 into #12 provided at the contact surface between outer ring 2 and ball 3. The inner ring l also has a similar shape to that shown in FIG. Figure 6 shows the groove 13 directly on the ball 3.
The lubricant 5, which is similar to the surface of the ball 13, is supplied to the contact surface between the ball 3 and the inner ring 1 or outer ring 2 through the groove of the ball 3 as the ball 3 moves.
以上、幾つかの実施例をのべた。本実施例によれば、従
来型のコロガリ軸受に比較して、球と内外輪に接触する
面への潤滑剤の供給量が増加し、より安定したコロガリ
軸受の運動が得られる。第５図、第６図の実施例の場合
には、接触面の凹凸のため振動しやすく、高速回転軸受
には利用しにくいと考えるが、低速回転の場合には有効
である。Several examples have been described above. According to this embodiment, compared to a conventional rolling bearing, the amount of lubricant supplied to the surfaces that contact the balls and the inner and outer rings is increased, and more stable rolling bearing motion can be obtained. The embodiments shown in FIGS. 5 and 6 are likely to vibrate due to the unevenness of the contact surface, making them difficult to use in high-speed rotation bearings, but they are effective for low-speed rotation.
本発明によれば、潤滑性が劣る潤滑剤、例えば溶融ナト
リウムｅ４滑でも、従来型コロガリ軸受に比較して、転
動体と内外輪の接Ｆ！ｉｔ面に潤滑剤を豊富に供給出来
るのでよル安定したコロガリ軸受となる。又、通常の油
潤滑盤コロガリ軸受としても、コロガリ抵抗発生面に潤
滑剤を豊富に供給出来るので、ｇ滑油供給装置の運転圧
力を下げることがｏＴ能である。According to the present invention, even with a lubricant with poor lubricity, such as molten sodium e4, the contact between the rolling elements and the inner and outer rings is lower than in conventional rolling bearings. Since lubricant can be abundantly supplied to the IT surface, it becomes a very stable rolling bearing. In addition, even with a normal oil-lubricated rolling bearing, since lubricant can be abundantly supplied to the rolling resistance generating surface, it is possible to lower the operating pressure of the g-lubrication oil supply device.
第１図は本発明の一実施例のコロガリ軸受の断面図、５
ｇ２図は第１図の外輪を抜出して示した部分図、第３図
、第４図は本発明を示すコロガリ軸受の部分断面図、第
５図、第６図は本発明の変形例を示した部分図および部
分１！ＩＴ面図、第７図は従来櫨コロガリ軸受の断面図
である。
６、 ７−［ＥＪＪ ８． ９． ８ ａ、 ８ｂ、
８ ｃ、 ９ ａ。
９ｂ、９ｃ、１２．ｔ３・−ｓ。FIG. 1 is a cross-sectional view of a rolling bearing according to an embodiment of the present invention.
Figure g2 is a partial view of the outer ring in Figure 1, Figures 3 and 4 are partial sectional views of a rolling bearing according to the present invention, and Figures 5 and 6 are modified examples of the present invention. Partial diagram and part 1! The IT side view, FIG. 7, is a cross-sectional view of a conventional cylindrical bearing. 6, 7-[EJJ 8. 9. 8a, 8b,
8c, 9a. 9b, 9c, 12. t3・-s.
Claims (1)
外輪および転動体を保持する保持器等から成るコロガリ
軸受において、内輪、外輪の転動体接触面に１本以上複
数本の溝およびこの溝に連絡する複数個の穴を設けたこ
とを特徴とするコロガリ軸受。1. A rolling element such as a ball or cylinder and an inner ring in contact with this rolling element,
A rolling bearing comprising an outer ring and a cage for holding rolling elements, etc., characterized in that one or more grooves and a plurality of holes communicating with the grooves are provided on the contact surfaces of the inner ring and the outer ring with the rolling elements. Rolling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058442A JPS61218829A (en) | 1985-03-25 | 1985-03-25 | Rolling bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60058442A JPS61218829A (en) | 1985-03-25 | 1985-03-25 | Rolling bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61218829A true JPS61218829A (en) | 1986-09-29 |
Family
ID=13084509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60058442A Pending JPS61218829A (en) | 1985-03-25 | 1985-03-25 | Rolling bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61218829A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007218373A (en) * | 2006-02-17 | 2007-08-30 | Yaskawa Electric Corp | Solid lubrication roller bearing |
| JP2009002525A (en) * | 2004-10-08 | 2009-01-08 | Ntn Corp | Rolling bearing |
| US7874733B2 (en) | 2006-01-05 | 2011-01-25 | Ntn Corporation | Rolling bearing |
| JP2013029122A (en) * | 2011-07-27 | 2013-02-07 | Nobuyoshi Sugitani | Sealed rolling bearing |
| CN106224387A (en) * | 2016-08-31 | 2016-12-14 | 洛阳轴研科技股份有限公司 | A kind of angular contact ball bearing |
-
1985
- 1985-03-25 JP JP60058442A patent/JPS61218829A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009002525A (en) * | 2004-10-08 | 2009-01-08 | Ntn Corp | Rolling bearing |
| US7918606B2 (en) | 2004-10-08 | 2011-04-05 | Ntn Corporation | Rolling bearing |
| US7874733B2 (en) | 2006-01-05 | 2011-01-25 | Ntn Corporation | Rolling bearing |
| JP2007218373A (en) * | 2006-02-17 | 2007-08-30 | Yaskawa Electric Corp | Solid lubrication roller bearing |
| JP2013029122A (en) * | 2011-07-27 | 2013-02-07 | Nobuyoshi Sugitani | Sealed rolling bearing |
| CN106224387A (en) * | 2016-08-31 | 2016-12-14 | 洛阳轴研科技股份有限公司 | A kind of angular contact ball bearing |
| CN106224387B (en) * | 2016-08-31 | 2019-09-06 | 洛阳轴承研究所有限公司 | A kind of angular contact ball bearing |
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