JPH0222611B2 - - Google Patents
Info
- Publication number
- JPH0222611B2 JPH0222611B2 JP344083A JP344083A JPH0222611B2 JP H0222611 B2 JPH0222611 B2 JP H0222611B2 JP 344083 A JP344083 A JP 344083A JP 344083 A JP344083 A JP 344083A JP H0222611 B2 JPH0222611 B2 JP H0222611B2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- shaft
- flow path
- roller bearing
- flow passage
- 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
Links
- 230000001050 lubricating effect Effects 0.000 claims description 25
- 239000007788 liquid Substances 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000314 lubricant Substances 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 2
- 239000012530 fluid Substances 0.000 description 15
- 239000000428 dust Substances 0.000 description 12
- 238000001816 cooling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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
- F16C33/667—Details of supply of the liquid to the bearing, e.g. passages or nozzles related to conditioning, e.g. cooling, filtering
-
- 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
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
-
- 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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は堅型回転電機の軸受装置に係り、特
に、堅型に配置された軸を支持するころ軸受を冷
却すると共に、潤滑を行う目的で潤滑液を流通さ
せているものに好適な堅型回転電機の軸受装置に
関する。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a bearing device for a rigid rotating electric machine, and particularly to a bearing device for cooling and lubricating a roller bearing that supports a shaft arranged in a rigid configuration. The present invention relates to a bearing device for a rigid rotating electric machine suitable for those that circulate lubricating fluid.
〔従来技術〕
一般に竪型回転電機は、竪型に配置される軸と
共に回動する回転子と、この回転子と間隙をもつ
て対向配置される固定子とで概略構成される。そ
して、上記軸は前記回転子の両端部において軸受
により回転自在に支持される。[Prior Art] In general, a vertical rotating electrical machine is generally constructed of a rotor that rotates together with a vertically arranged shaft, and a stator that is arranged to face the rotor with a gap therebetween. The shaft is rotatably supported by bearings at both ends of the rotor.
第１図は従来の竪型回転電機における一般的な
軸受装置の部分のみを断面して示したもので、竪
型に構成された軸を支持しているころ軸受近傍を
表わしたものである。 FIG. 1 is a cross-sectional view of only a typical bearing device in a conventional vertical rotating electrical machine, showing the vicinity of a roller bearing that supports a vertical shaft.
図において、１は竪型に構成された軸で、この
軸１は玉２Ａと、該玉２Ａを支持する内輪２Ｂ、
及び外輪２Ｃとで形成されたころ軸受２がその内
輪２Ｂの内周面と軸１の外周面で嵌め合い固着さ
れる。この軸受２の外輪２Ｃの外周面は軸受ハウ
ジング３の内径で支持されており、前記軸が回転
出来るようになつている。軸受ハウジング３は前
記ころ軸受２を潤滑する潤滑液の液室４を形成す
ると共に、軸１との間で軸方向に延びる潤滑液の
流通路５を形成している。 In the figure, 1 is a vertically configured shaft, and this shaft 1 includes a ball 2A, an inner ring 2B that supports the ball 2A,
The roller bearing 2 formed by the inner ring 2B and the outer ring 2C is fitted and fixed between the inner circumferential surface of the inner ring 2B and the outer circumferential surface of the shaft 1. The outer peripheral surface of the outer ring 2C of this bearing 2 is supported by the inner diameter of the bearing housing 3, so that the shaft can rotate. The bearing housing 3 forms a liquid chamber 4 for lubricating liquid that lubricates the roller bearing 2, and also forms a flow path 5 for the lubricating liquid that extends in the axial direction between the bearing housing 3 and the shaft 1.
このように構成された従来の軸受装置におい
て、この軸受２の潤滑と冷却を目的とした潤滑液
を液室４側から流通路５の方向に第１図矢印の様
に流通させると、軸１と軸受ハウジング３との間
に形成された流通路５の間隔が、液室４の液入口
からころ軸受２まで一定であるため、流れる潤滑
液の液速が一定となり、潤滑液中に混入している
異物や塵埃等は当該潤滑液と共に運ばれころ軸受
２の軌道面、即ち、玉２Ａと内輪２Ｂ、外輪２Ｃ
間に巻込まる形で混在してしまう。この軌道面に
存在する異物や塵埃等は、軸１の回転に伴い玉２
Ａと内輪２Ｂ，外輪２Ｃの間のラジアル隙間にか
み込んでしまい玉２Ａ、あるいは内輪２Ｂ、及び
外輪２Ｃに傷を付ける恐れがあり、この傷がしだ
いに発展して玉２Ａ、あるいは内輪２Ｂ，外輪２
Ｃの剥離等に進展すると、この種竪型回転電機の
軸受装置部の破損に至つてしまう恐れがある。 In the conventional bearing device configured as described above, when a lubricant for the purpose of lubrication and cooling of the bearing 2 is caused to flow from the liquid chamber 4 side in the direction of the flow path 5 as shown by the arrow in FIG. 1, the shaft 1 Since the distance between the flow path 5 formed between the housing 3 and the bearing housing 3 is constant from the liquid inlet of the liquid chamber 4 to the roller bearing 2, the velocity of the flowing lubricating liquid is constant, and the lubricating liquid does not mix into the lubricating liquid. Foreign matter, dust, etc., are carried along with the lubricating fluid and are deposited on the raceway surface of the roller bearing 2, that is, the balls 2A, the inner ring 2B, and the outer ring 2C.
They get mixed up in the middle. Foreign matter and dust existing on this raceway surface are removed from the ball 2 as the shaft 1 rotates.
There is a risk that the ball 2A, inner ring 2B, and outer ring 2C may get caught in the radial gap between the ball A, the inner ring 2B, and the outer ring 2C, and cause damage to the ball 2A, or the inner ring 2B, and the outer ring 2C. Outer ring 2
If this progresses to peeling of C, etc., there is a risk that the bearing device of this type of vertical rotating electric machine will be damaged.
本発明は上述の点に鑑み成されたもので、その
目的とするところは、潤滑液中に異物や塵埃等が
混入した状態の使用条件にあつても、異物や塵埃
等が軸受の軌道面に達することがないような構成
にして長寿命化を計ることが可能になつたこの種
竪型回転電機の軸受装置を提供するにある。
The present invention has been made in view of the above-mentioned points, and its purpose is to prevent foreign matter and dust from being removed from the raceway surface of a bearing even under operating conditions in which foreign matter and dust are mixed in the lubricating fluid. It is an object of the present invention to provide a bearing device for a vertical rotating electric machine of this type, which can be configured to have a long service life without reaching the above-mentioned condition.
本発明はころ軸受の下方に位置する軸受ハウジ
ングの一部を、堅型に構成された回転子と共に回
動する軸側に突出させ、この突出部先端と軸とで
形成する潤滑液の流通路間隔l1を、前記ころ軸受
の真下で前記軸と軸受ハウジングとで形成する流
通する流通路間隔l2よりせまくし、かつ、前記こ
ろ軸受の真下で間隔l2なる流通路を形成している
個所と、この下で間隔l2なる流通路を形成してい
る個所との境界部近傍の軸受ハウジングに、半径
方向外側に伸延する空間を有したポケツトを設け
たことにより、所期の目的を達成するようになし
たものである。
In the present invention, a part of the bearing housing located below the roller bearing is made to protrude toward the shaft that rotates together with the rigid rotor, and a lubricating fluid flow path is formed by the tip of this protrusion and the shaft. The spacing l 1 is narrower than the spacing l 2 of a flowing flow path formed by the shaft and the bearing housing directly below the roller bearing, and a flow path with a spacing l 2 is formed directly below the roller bearing. By providing a pocket with a space extending outward in the radial direction in the bearing housing near the boundary between this point and the point below which a flow path with a distance of l2 is formed, the intended purpose can be achieved. This was done to achieve this goal.
以下、図面の実施例に基づいて本発明を説明す
る。尚、符号は従来と同一のものは同じ符号を使
用した。
The present invention will be described below based on embodiments shown in the drawings. Incidentally, the same reference numerals are used for the same parts as in the conventional case.
第２図、及び第３図は本発明の軸受装置部分の
みを断面して表わした一実施例である。該図に示
す実施例の概略構成は、従来例で説明した構成と
同様であり、ここでの説明は省略し、以下は本発
明に関連する部分の説明とする。 FIGS. 2 and 3 show an embodiment in which only the bearing device portion of the present invention is shown in cross section. The schematic configuration of the embodiment shown in this figure is the same as the configuration described in the conventional example, so the description here will be omitted, and the following will be a description of the parts related to the present invention.
第２図に示すように、本発明は流通路５を形成
する軸受ハウジング３の内周面でころ軸受２の下
方に位置する所に一部を回転軸１に近接させる形
で突出した部分を形成し、その突出した部分の内
径と回転軸１の外周面とで形成する流通路の間隔
l1をこの軸受２の真下の回転軸１と軸受ハウジン
グ３とで形成する流通路の間隔l2よりせまく形成
している。更に、この軸受２の真下で間隔l2なる
流通路を形成している個所と、その下方で間隔l1
なる流通路を形成している個所との間の軸受ハウ
ジング３に、半径方向外側に伸延するポケツト６
を形成している。 As shown in FIG. 2, the present invention includes a protruding portion located below the roller bearing 2 on the inner circumferential surface of the bearing housing 3 that forms the flow path 5 so that a portion thereof is close to the rotating shaft 1. The interval between the flow passages formed by the inner diameter of the protruding part and the outer peripheral surface of the rotating shaft 1
l 1 is formed narrower than the interval l 2 of the flow path formed by the rotating shaft 1 and the bearing housing 3 directly below the bearing 2 . Furthermore, there is a portion where a flow path with a spacing of l 2 is formed directly below this bearing 2, and a portion with a spacing of l 1 below that portion.
A pocket 6 extending radially outwardly is provided in the bearing housing 3 between the points forming a flow passage.
is formed.
このような本発明の構成による軸受装置によれ
ばこの軸受２の冷却と潤滑を目的とする潤滑液
が、液室４から間隔l1の流通路、及び間隔l2の流
通路を通つてこの軸受２に導かれ、ころ軸受２を
潤滑および冷却して上方へ矢印のように流れ去
る。この際流通路５の間隔が異なつていることに
より、間隔l1部の流通路断面積S1と間隔l2部の流
通路断面積S2との関係がS1＜S2となる。このため
ここを流通する潤滑液の流速は異なつてくる。即
ち、液室４からの潤滑液S1断面積の流通路では速
い流速で通過し、S2断面積の流通路では遅くな
る。従つて、このS1，S2の断面積を適切に選択設
計することによりS2断面積の流通路では、潤滑液
に混合している異物や塵埃等が澱むことになる。
さらに、ポケツト６があるため、軸１の回転遠心
力により潤滑液が第３図のように渦を巻き、当該
潤滑液中の異物や塵埃等が飛ばされて、このポケ
ツト６に異物や塵埃等が分離沈澱する効果があ
り、この軸受２にはほとんど異物や塵埃等が除去
された潤滑液が流通するようになる。 According to the bearing device having the configuration of the present invention, the lubricating fluid for the purpose of cooling and lubricating the bearing 2 flows from the liquid chamber 4 through the flow passage with the interval l 1 and the flow passage with the interval l 2 . It is guided to the bearing 2, lubricates and cools the roller bearing 2, and flows upward in the direction of the arrow. At this time, since the intervals between the flow passages 5 are different, the relationship between the flow passage cross-sectional area S 1 at one part of the interval l and the cross-sectional area S 2 of the flow passage at two parts of the interval l becomes S 1 <S 2 . For this reason, the flow velocity of the lubricating fluid flowing therein varies. That is, the lubricating liquid from the liquid chamber 4 passes through the flow path with a cross-sectional area of S1 at a high flow rate, and the flow rate is slow in the flow path with a cross-sectional area of S2 . Therefore, by appropriately selecting and designing the cross-sectional areas of S 1 and S 2 , foreign matter, dust, etc. mixed in the lubricating liquid will accumulate in the flow path having the cross-sectional area of S 2 .
Furthermore, since there is a pocket 6, the centrifugal force of rotation of the shaft 1 causes the lubricating fluid to swirl as shown in Figure 3, and foreign matter and dust in the lubricating fluid are blown away. This has the effect of separating and precipitating the lubricating fluid, and the lubricating fluid from which most foreign matter, dust, etc. have been removed flows through the bearing 2.
このように本実施例の軸受装置とすることによ
り潤滑液中に異物や塵埃等が混入しいても、この
異物や塵埃等はこの軸受２の軌道面にほとんど混
入することはないので玉２Ａ、あるいは内輪２
Ｂ，外輪２Ｃが損傷することがなく、軸受部の長
寿命化を大幅に向上することが可能となる。しか
も、潤滑液の流れを何ら防害することがないの
で、潤滑液本来の目的であるこの軸受の潤滑と冷
却に支障をきたすことはない。さらにころ軸受の
潤滑と冷却を司どる液質に関係なく採用できるの
で、前記した実施例と同一構造の軸受装置が他の
同様な機種にも容易に適用できる効果がある。 As described above, with the bearing device of this embodiment, even if foreign matter or dust is mixed into the lubricating fluid, this foreign matter or dust will hardly be mixed into the raceway surface of this bearing 2, so the balls 2A, Or inner circle 2
B. The outer ring 2C is not damaged, and the life of the bearing can be greatly extended. Furthermore, since the flow of the lubricating fluid is not obstructed in any way, the original purpose of the lubricating fluid, which is lubrication and cooling of the bearing, is not hindered. Furthermore, since it can be adopted regardless of the quality of the liquid that governs the lubrication and cooling of the roller bearing, there is an effect that the bearing device having the same structure as the embodiment described above can be easily applied to other similar models.
以上説明した本発明の堅型回転電機の軸受装置
によれば、この軸受の下方に位置する軸受ハウジ
ングの一部を、堅型に構成された回転子と共に回
動する軸側に突出させ、この突出部先端と軸とで
形成する潤滑液の流通路間隔l1を、前記ころ軸受
の真下で前記軸と軸受ハウジングとで形成する流
通路間隔l2よりせまくし、かつ、前記ころ軸受の
真下で間隔l2なる流通路を形成している個所と、
この下で間隔l2なる流通路を形成している個所と
の境界部近傍の軸受ハウジングに、半径方向外側
に伸延する空間を有したポケツトを設けたもので
あるから、潤滑液に異物や塵埃等が混入していて
も、流通路間隔が異なつているため潤滑油の流速
が異なり、軸受真下での流速は遅く、ここで異物
や塵埃等が澱み、たとえ潤滑液中の異物や塵埃等
が回転遠心力により飛ばされたとしても、ポケツ
トに異物や塵埃が分離沈澱するため軸受に達する
ことはなくなり、よつて、軸受が破損に至ること
がないので、此種軸受装置には有効である。
According to the bearing device for a rigid rotating electric machine of the present invention as described above, a part of the bearing housing located below the bearing is protruded toward the shaft side that rotates together with the rotor configured to be rigid. The lubricating fluid flow passage interval l 1 formed between the tip of the protrusion and the shaft is narrower than the flow passage interval l 2 formed between the shaft and the bearing housing directly below the roller bearing, and directly below the roller bearing. A part forming a flow path with an interval of l 2 ,
A pocket with a space extending outward in the radial direction is provided in the bearing housing near the boundary with the area below which forms a flow path with a spacing of l2 , so foreign matter and dust may not be present in the lubricating fluid. Even if the lubricating oil is mixed in, the flow velocity of the lubricating oil will be different because the interval between the flow passages is different, and the flow velocity directly under the bearing is slow, and this is where foreign matter and dust will accumulate. Even if foreign objects and dust are blown away by rotational centrifugal force, they will separate and precipitate in the pockets and will not reach the bearings, thus preventing damage to the bearings, which is effective for this type of bearing device.
第１図は従来の軸受装置を示す断面図、第２図
は本発明の一実施例を示す軸受装置の断面図、第
３図はそのＡ−Ａ断面図である。
１……回転軸、２……ころがり軸受、２Ａ……
玉、２Ｂ……内輪、２Ｃ……外輪、３……軸受ハ
ウジング、４……油室、５……流通路、６……ポ
ケツト。
FIG. 1 is a cross-sectional view of a conventional bearing device, FIG. 2 is a cross-sectional view of a bearing device according to an embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line A-A. 1...Rotating shaft, 2...Rolling bearing, 2A...
Ball, 2B...inner ring, 2C...outer ring, 3...bearing housing, 4...oil chamber, 5...flow passage, 6...pocket.
Claims (1)
と、該軸１をその内周面で支持するころ軸受２
と、該ころ軸受２を保持すると共に、この軸受２
を潤滑する潤滑液の液室４を形成し、該液室４か
らの潤滑液を前記ころ軸受２に流通する流通路５
を前記軸１との間で形成する軸受ハウジング３と
を備えた堅型回転電機の軸受装置において、 前記ころ軸受２の下方に位置する前記軸受ハウ
ジング３の一部を前記軸１側に突出させ、この突
出部先端と軸１とで形成する流通路間隔l1を、前
記ころ軸受２の真下で前記軸１と軸受ハウジング
３とで形成する流通路間隔l2よりせまくし、か
つ、前記ころ軸受２の真下で間隔l2なる流通路を
形成している個所と、この下で間隔l1なる流通路
を形成している個所との境界部近傍の軸受ハウジ
ング３に、半径方向外側に伸延する空間を有した
ポケツトを設けたことを特徴とする堅型回転電機
の軸受装置。[Claims] 1. A shaft 1 that rotates together with a rigid rotor.
and a roller bearing 2 that supports the shaft 1 on its inner peripheral surface.
and hold the roller bearing 2, and also hold the roller bearing 2.
A flow path 5 forms a liquid chamber 4 for lubricating liquid that lubricates the
and a bearing housing 3 formed between the roller bearing 2 and the shaft 1, a part of the bearing housing 3 located below the roller bearing 2 protrudes toward the shaft 1. , the flow path interval l 1 formed between the tip of the protrusion and the shaft 1 is narrower than the flow path interval l 2 formed between the shaft 1 and the bearing housing 3 directly below the roller bearing 2, and the roller In the bearing housing 3 near the boundary between a place where a flow path with a spacing of l 2 is formed directly below the bearing 2 and a place where a flow path with a spacing of l 1 is formed below this, there is a groove extending outward in the radial direction. 1. A bearing device for a rigid rotating electrical machine, characterized by having a pocket having a space for
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP344083A JPS59129552A (en) | 1983-01-14 | 1983-01-14 | Bearing supporting device for vertical rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP344083A JPS59129552A (en) | 1983-01-14 | 1983-01-14 | Bearing supporting device for vertical rotary electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59129552A JPS59129552A (en) | 1984-07-25 |
| JPH0222611B2 true JPH0222611B2 (en) | 1990-05-21 |
Family
ID=11557408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP344083A Granted JPS59129552A (en) | 1983-01-14 | 1983-01-14 | Bearing supporting device for vertical rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59129552A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2756884B2 (en) * | 1992-01-21 | 1998-05-25 | 矢崎総業株式会社 | Axial flow canned pump |
| DE102009033130A1 (en) * | 2009-07-15 | 2011-02-03 | Schaeffler Technologies Gmbh & Co. Kg | Bearing arrangement for a media-lubricated bearing with a rotary separator |
-
1983
- 1983-01-14 JP JP344083A patent/JPS59129552A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59129552A (en) | 1984-07-25 |
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