JPS6116777Y2 - - Google Patents
Info
- Publication number
- JPS6116777Y2 JPS6116777Y2 JP15330780U JP15330780U JPS6116777Y2 JP S6116777 Y2 JPS6116777 Y2 JP S6116777Y2 JP 15330780 U JP15330780 U JP 15330780U JP 15330780 U JP15330780 U JP 15330780U JP S6116777 Y2 JPS6116777 Y2 JP S6116777Y2
- Authority
- JP
- Japan
- Prior art keywords
- side member
- base oil
- bearing
- filling chamber
- annular 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.)
- Expired
Links
- 239000002199 base oil Substances 0.000 claims description 42
- 239000004519 grease Substances 0.000 claims description 33
- 230000001050 lubricating effect Effects 0.000 claims description 14
- 238000005192 partition Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 210000003027 ear inner Anatomy 0.000 description 12
- 238000005461 lubrication Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
本考案は車両用回転電機の軸受装置に関し、特
に潤滑グリースのベースオイル洩れ防止を図つた
ものに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bearing device for a rotating electric machine for a vehicle, and more particularly to a bearing device designed to prevent base oil leakage of lubricating grease.
一般に車両用回転電機の軸受装置では軸受の両
側に充填保持された一定量のグリースからにじみ
出るベースオイルにより潤滑を図つている。この
ためにそのグリースのベースオイルは潤滑剤とし
て非常に重要であるが、このベースオイルは回転
子の回転中に固定側部材と回転子側部材との間の
ラビンス部の隙間からしだいに外部へ洩れて少な
くなつて行くので、軸受の潤滑性能を長期間良好
に維持していくにはベースオイルを軸受回りにで
きるだけ保持しておく必要があり、又このことは
軸受の保守回帰を延長する上で非常に重要なこと
である。 Generally, in a bearing device for a rotating electrical machine for a vehicle, lubrication is achieved using base oil that oozes out from a certain amount of grease that is filled and held on both sides of the bearing. For this reason, the base oil of the grease is very important as a lubricant, but as the rotor rotates, this base oil gradually leaks to the outside from the gap in the labyrinth between the stationary side member and the rotor side member. In order to maintain good bearing lubrication performance over a long period of time, it is necessary to retain as much base oil as possible around the bearing, and this is extremely important in extending the maintenance return of the bearing. It's important.
そこで、従来の車両用回転電機の軸受装置では
第１図に示す如く軸受１の両側の潤滑グリース充
填室２内に充填されたグリース３からにじみ出る
ベースオイル４が出来るだけ外部に洩れないよう
にするために、固定子側部材である鏡蓋５や外輪
押え６と回転子軸７に取付けた回転子側カラー
８，９との間のラビリンス部の隙間Ａを小さくし
たり、そのラビリンス部構造を複雑にしたりして
いた。しかしながら、車両用回転電機は寸法制約
が多く、上上記隙間を小さくしたり、ラビリンス
部を複雑にすることには限度があつて、ベースオ
イル４が第１図中Ｂ，Ｃで示す様なところに流れ
出てそこから矢印の如く外部へ洩れてしまう問題
があつた。又、軸受条件がきびしくなると温度が
上昇しベースオイル４の流動性がよくなるので洩
れはさらに多くなるなどの欠点があつた。 Therefore, in a conventional bearing device for a rotating electric machine for a vehicle, as shown in FIG. In addition, the gap A in the labyrinth between the stator side members such as the mirror cover 5 and outer ring holder 6 and the rotor side collars 8 and 9 attached to the rotor shaft 7 is made smaller, and the structure of the labyrinth is complicated. I used to do things like that. However, rotating electric machines for vehicles have many dimensional restrictions, and there are limits to making the above-mentioned gap smaller or making the labyrinth part more complicated. There was a problem with the water flowing out and leaking outside as shown by the arrow. Furthermore, when the bearing conditions become severe, the temperature rises and the fluidity of the base oil 4 improves, resulting in a further problem of leakage.
本考案は上記事情に鑑みなされたもので、その
目的とする処は、ラビリンス部で隙間から外部へ
洩れようとする潤滑に大切なベースオイルを、外
部へ洩らすとなく軸受の側面にに配置されたグリ
ース充填室内のグリースに再び侵透させ得るよう
回収して再度潤滑油として活用できるようになす
ことにより、軸受回りに充填保持された一定量の
グリースのベースオイルを有効に利用して軸受の
潤滑性能を長期間維持し保守期間を延長できるよ
うにしたものを提供することにある。 This invention was developed in view of the above circumstances, and its purpose is to prevent the base oil, which is important for lubrication, from leaking outside through the gap in the labyrinth, by placing it on the side of the bearing. By collecting the grease so that it can re-penetrate into the grease filling chamber and reusing it as lubricating oil, the base oil of the fixed amount of grease stored around the bearing can be effectively used to improve bearing lubrication performance. The goal is to provide products that can be maintained for a long period of time and extend the maintenance period.
以下本考案の一実施例を第２図乃至第５図によ
り説明する。なお、ここで前述した第１図中のも
のと同一構成をなす部分は同一符号を用いて説明
の簡略化を図るものとする。先ず第２図は第１図
と同様に断面した状態図で、軸受１の両側に潤滑
グリース充填室２を周方向に亘つて有する固定子
側部材の鏡蓋５と外輪押え６が配置し、それらと
内外周にて対向すべく回転子軸７に取付けた回転
子側カラー８，９が配し、それら固定子側部材と
回転子側部材との間のラビリンス部の隙間Ａは従
来と略同様である。 An embodiment of the present invention will be described below with reference to FIGS. 2 to 5. Note that parts having the same configuration as those in FIG. 1 described above are designated by the same reference numerals to simplify the explanation. First, FIG. 2 is a cross-sectional view similar to FIG. 1, in which a stator side member cover 5 and an outer ring retainer 6 are arranged on both sides of the bearing 1 and have a lubricating grease filling chamber 2 in the circumferential direction. Rotor-side collars 8 and 9 attached to the rotor shaft 7 are arranged to face them on the inner and outer peripheries, and the gap A in the labyrinth part between the stator-side member and the rotor-side member is approximately the same as in the conventional case. The same is true.
ここで、第２図乃至第５図に示す如く固定子側
部材と回転子側部材とのラビリンス部における対
向側、即ち鏡蓋５の内周面とカラー８の外周面及
び外輪押え６の内周面とカラー８の外周面にはそ
れぞれ互に略対向配置して周方向に亘る環状溝１
０，１１が各々形成されている。又上記固定子側
部材の鏡蓋５と外輪押え６との軸芯下方部位（回
転子軸７の真下となる附近）には潤滑グリース充
填室２の内周側縁から環状溝１０に亘つて該充填
室２のふところを広げる如く切欠溝１２が形成さ
れ、且つその切欠溝１２内から潤滑グリース充填
室２内にも張り出す如くなして隔壁１３が固設さ
れ、この隔壁１３により潤滑グリース充填室２内
と底面のみ開放して連通するよう区画することで
ベースオイル溜め空間１４が構成され、このベー
スオイル溜め空間１４上部が、上記切欠溝１２内
に隔壁１３により潤滑グリース充填室２と仕切ら
れて構成されたベースオイル戻し流路１５を介し
て上記環状溝１０底部と連通されている。なお、
上記隔壁１３は第３図及び第５図に示す如く潤滑
グリース充填室２内に張り出した横断面コ字形状
部が上部切欠溝１２より巾広とされ、これにてベ
ースオイル溜め空間１４はこれに連通するベース
オイル戻し流路１５に比し横断面積が広く構成さ
れている。 Here, as shown in FIGS. 2 to 5, the opposing sides in the labyrinth part between the stator side member and the rotor side member, that is, the inner circumferential surface of the mirror lid 5, the outer circumferential surface of the collar 8, and the inner circumferential surface of the outer ring retainer 6 An annular groove 1 extending in the circumferential direction is provided on the circumferential surface and the outer circumferential surface of the collar 8, and is arranged substantially opposite to each other.
0 and 11 are formed respectively. Further, in the lower part of the axis of the mirror cover 5 and the outer ring holder 6 of the stator side member (in the vicinity directly below the rotor shaft 7), there is a groove extending from the inner peripheral side edge of the lubricating grease filling chamber 2 to the annular groove 10. A notched groove 12 is formed to widen the filling chamber 2, and a partition wall 13 is fixedly provided so as to extend from within the notched groove 12 into the lubricating grease filling chamber 2. A base oil reservoir space 14 is formed by partitioning the interior of the chamber 2 so that only the bottom surface is open and communicating with it, and the upper part of this base oil reservoir space 14 is partitioned from the lubricating grease filling chamber 2 by a partition wall 13 in the notched groove 12. It communicates with the bottom of the annular groove 10 through a base oil return flow path 15 configured. In addition,
As shown in FIGS. 3 and 5, the partition wall 13 has a U-shaped cross section extending into the lubricating grease filling chamber 2 and is wider than the upper notch groove 12, so that the base oil reservoir space 14 is formed in this direction. The cross-sectional area is configured to be larger than that of the base oil return flow path 15 with which it communicates.
而して、この考案の上記実施例における作用を
述べると、第２図のラビリンス部隙間Ａより洩れ
たグリース３のベースオイル４は、第５図のよう
に環状溝１１又は１０に入り、第３図のように一
部は固定子側環状溝１０に振り切られ一部は回転
子側環状溝１１を流れるなどして、固定子側環状
溝１０の下側方にある切欠溝１２の戻し流路１５
に導かれる。そして潤滑グリース充填室２内に隔
壁１３によつて区画されベースオイル溜め空間１
４に回収される。そのベースオイル溜め空間１４
に回収されたベースオイル４はその開放底部から
潤滑グリース充填室２のグリース３の中にしみ込
み、再び軸受１の潤滑油として利用されるように
なる。 To describe the operation of the above embodiment of this invention, the base oil 4 of the grease 3 leaking from the labyrinth gap A in FIG. 2 enters the annular groove 11 or 10 as shown in FIG. As shown in the figure, a part of the flow path flows through the annular groove 10 on the stator side and an annular groove 11 on the rotor side, so that the return flow path of the cutout groove 12 on the lower side of the annular groove 10 on the stator side 15
guided by. A base oil reservoir space 1 is defined within the lubricating grease filling chamber 2 by a partition wall 13.
It will be collected on 4th. The base oil reservoir space 14
The recovered base oil 4 soaks into the grease 3 in the lubricating grease filling chamber 2 from its open bottom and is used as lubricating oil for the bearing 1 again.
なお、ベースオイル溜め空間１４は隔壁１３に
より区画されて潤滑グリース充填室２に底部のみ
開放して連通していることで、グリースを該グリ
ース充填室２に充填する場合に、グリース２がベ
ースオイル溜め空間１４内方へ深く侵入して充満
するようなことがなく、常に所要の空間を確保し
ていてベースオイルの回収を良好に行うようにな
る。 Note that the base oil reservoir space 14 is partitioned by the partition wall 13 and communicates with the lubricating grease filling chamber 2 with only the bottom open, so that when filling the grease filling chamber 2 with grease, the grease 2 enters the base oil reservoir space. 14. The base oil does not penetrate deep into the interior and become full, and the necessary space is always secured, allowing for good recovery of base oil.
又一方、隔間Ａより洩れたベースオイル４は、
ラビリンス部を通り外部より侵入た塵やカーボン
粉とまざり、よごれでベースオイル溜め空間１４
に溜るようになるが、そこからはベースオイル４
だけがグリース３にしみ込むため、ベースオイル
４と外部からの不純物１６を第３図の示す如く如
く分離できる。又、ベースオイル４が溜め空間１
４に入る流路１５の大きさに較べて、グリース３
にベースオイル４がしみ込んで行く溜め空間１４
の底部の面積を大きくとつているので、ベースオ
イル４が十分グリース充填室２へ環元され、外部
に溢れて洩てしまうことはない。 On the other hand, the base oil 4 leaking from the interval A is
The base oil reservoir space 14 is mixed with dust and carbon powder that have entered from the outside through the labyrinth part, and is contaminated with dirt.
From there, base oil 4
Since only the base oil 4 penetrates into the grease 3, the base oil 4 and the external impurities 16 can be separated as shown in FIG. Also, the base oil 4 is stored in the storage space 1.
Compared to the size of the flow path 15 entering 4, grease 3
A reservoir space 14 into which the base oil 4 permeates.
Since the area of the bottom of the grease filling chamber 2 is large, the base oil 4 is sufficiently circulated into the grease filling chamber 2 and does not overflow to the outside.
次に本考案の他の実施例を第６図により説明す
る。これででは第２の切欠溝１２を設けずに、潤
滑グリース充填室２内に隔壁１３Ａのみでベース
オイル溜め空間１４Ａを区画構成し、そしてその
ベースオイル溜め空間１４Ａ上部と固定子側環状
溝１０底部との間に穴をあけることでベースオイ
ル戻し流路１５Ａを設けた構成である。これにて
上記同様のベースオイル回収効果が図れる上、ラ
ビリンス部の隙間Ａの一部を切り欠かずに構成で
きるので、防塵効果及ベースオイル４の洩れ防止
効果をさらによくすることができる。 Next, another embodiment of the present invention will be described with reference to FIG. In this case, the base oil reservoir space 14A is defined in the lubricating grease filling chamber 2 only by the partition wall 13A without providing the second notched groove 12, and the upper part of the base oil reservoir space 14A and the bottom of the stator side annular groove 10 are separated. In this configuration, a base oil return passage 15A is provided by making a hole between them. In this way, the same base oil recovery effect as described above can be achieved, and since a part of the gap A in the labyrinth portion can be configured without being cut out, the dustproof effect and the leakage prevention effect of the base oil 4 can be further improved.
本考案は以上詳述した如くなしたから、軸受の
両側のラビリンス部隙間より外部へ洩れようとす
るグリースから分離したベースオイルを回収して
再びグリース充填室へ戻すことができると共に、
そのベースオイルの回収の際に外部から侵入した
塵やカーボン粉等分離できる。このために軸受両
側のラビリンス部構造を複雑にしなくも、グリー
スからのベースオイルを長期間軸受回りに保持し
ておくことができて、軸受の潤滑性能を良好に保
てると同時に保守回帰の延長を良好に図ることが
できるものとなる。 Since the present invention is made as detailed above, it is possible to collect the base oil separated from the grease leaking out from the labyrinth gaps on both sides of the bearing and return it to the grease filling chamber.
When recovering the base oil, it is possible to separate dust and carbon powder that have entered from the outside. As a result, base oil from grease can be retained around the bearing for a long period of time without complicating the structure of the labyrinths on both sides of the bearing, maintaining good lubrication performance of the bearing and also extending maintenance return times. It becomes something that can be achieved.
第１図は車両用回転電機の一般的な軸受構造を
示す断面図、第２図乃至第５図は本考案の一実施
例を示すもので、第２図は断面図、第３図は同要
部の拡大断面図、第４図は軸受一側方に位置する
固定子側部材（鏡蓋５）と回転子側部材（カラー
８）との正面図、第５図は第４図同様鏡蓋とカラ
ーとの一部断面した斜視図、第６図は本考案の他
の実施例を示す断面図である。
１……軸受、２……潤滑グリース充填室、３…
…グリース、４……グリースから分離したベース
オイル、５……固定子側部材（鏡蓋）、６……固
定子側部材（外輪押え）、７……回転子軸、８，
９……回転子側部材（カラー）、１０……固定子
側環状溝、１１……回転子側環状溝、、１２……
切欠溝、１３，１３Ａ……隔壁、１４，１４Ａ…
…ベースオイル溜め空間、１５，１５Ａ……ベー
スオイル戻し流路、１６……不純物。
Fig. 1 is a sectional view showing a general bearing structure of a rotating electrical machine for a vehicle, and Figs. 2 to 5 show an embodiment of the present invention. Fig. 2 is a sectional view and Fig. 3 is the same. 4 is a front view of the stator side member (mirror cover 5) and rotor side member (collar 8) located on one side of the bearing; FIG. 5 is a mirror view similar to FIG. 4. FIG. 6 is a partially sectional perspective view of the lid and collar, and is a sectional view showing another embodiment of the present invention. 1...bearing, 2...lubricating grease filling chamber, 3...
... Grease, 4 ... Base oil separated from grease, 5 ... Stator side member (mirror cover), 6 ... Stator side member (outer ring holder), 7 ... Rotor shaft, 8,
9... Rotor side member (collar), 10... Stator side annular groove, 11... Rotor side annular groove, 12...
Notch groove, 13, 13A...Partition wall, 14, 14A...
...Base oil reservoir space, 15, 15A...Base oil return channel, 16...Impurities.
Claims (1)
側に開放した環状溝状の潤滑グリース充填室を有
する固定子側部材と、前記回転子軸にそれぞれ嵌
着されて外周面が前記固定子側部材の内周面と小
間隙を存して対向してラビリンス部を構成する回
転子側部材とを備えてなる車両用回転電機の軸受
装置において、前記ラビリンス部を構成する固定
子側部材の内周面と回転子側部材の外周面との軸
線方向途中の対向面部分にそれぞれ周方向全体に
亘り断面凹状の環状溝を形成し、且つ前記固定子
側部材の軸芯下方部位の前記潤滑グリース充填室
の反軸受側奥部に隔壁によりベースオイル溜め空
間を底面のみで該潤滑グリース充填室内と連通す
る状態に区画構成すると共に、その固定子側部材
にこの環状溝内底部と上記ベースオイル溜め空間
内上部とを連通するベースオイル戻し流路を形成
したことを特徴とする車両用回転電機の軸受装
置。 a stator side member having an annular groove-shaped lubricating grease filling chamber disposed on both sides of a bearing that supports the rotor shaft and open to the bearing side; and a stator side member that is fitted onto the rotor shaft and whose outer peripheral surface is fixed to the rotor shaft. A bearing device for a rotating electrical machine for a vehicle, comprising a rotor-side member that faces the inner circumferential surface of a child-side member with a small gap therebetween and forms a labyrinth part, wherein the stator-side member forms the labyrinth part. An annular groove having a concave cross section is formed along the entire circumferential direction in an opposing surface portion between the inner circumferential surface and the outer circumferential surface of the rotor side member in the middle of the axial direction, and an annular groove having a concave cross section is formed in a portion below the axis of the stator side member. A base oil reservoir space is defined by a partition wall in the inner part of the lubricating grease filling chamber on the side opposite to the bearing, so that only the bottom surface communicates with the lubricating grease filling chamber. A bearing device for a rotating electrical machine for a vehicle, characterized in that a base oil return flow path communicating with an upper part of a space is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15330780U JPS6116777Y2 (en) | 1980-10-27 | 1980-10-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15330780U JPS6116777Y2 (en) | 1980-10-27 | 1980-10-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5778261U JPS5778261U (en) | 1982-05-14 |
| JPS6116777Y2 true JPS6116777Y2 (en) | 1986-05-23 |
Family
ID=29512564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15330780U Expired JPS6116777Y2 (en) | 1980-10-27 | 1980-10-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6116777Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4704057B2 (en) * | 2005-02-07 | 2011-06-15 | Ｎｔｎ株式会社 | Bearing with sealing device |
-
1980
- 1980-10-27 JP JP15330780U patent/JPS6116777Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5778261U (en) | 1982-05-14 |
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