JPS6118311Y2 - - Google Patents
Info
- Publication number
- JPS6118311Y2 JPS6118311Y2 JP13797081U JP13797081U JPS6118311Y2 JP S6118311 Y2 JPS6118311 Y2 JP S6118311Y2 JP 13797081 U JP13797081 U JP 13797081U JP 13797081 U JP13797081 U JP 13797081U JP S6118311 Y2 JPS6118311 Y2 JP S6118311Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- bearing collar
- bearing
- oil level
- guide bearing
- 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
- 239000003921 oil Substances 0.000 claims description 86
- 239000010687 lubricating oil Substances 0.000 claims description 17
- 230000002265 prevention Effects 0.000 claims description 17
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 238000005461 lubrication Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Description
【考案の詳細な説明】
この考案は、自己給油ポンプ式のよる潤滑機構
を備えた立軸回転機の軸受装置に関する。[Detailed Description of the Invention] This invention relates to a bearing device for a vertical shaft rotating machine equipped with a self-lubricating pump type lubrication mechanism.
一般に、立軸形の水車発電機等の回転機におい
ては、回転軸の遠心力によるポンプ作用を利用し
て、案内軸受カラーの油路を介して潤滑油を循環
させて案内軸受に給油する自己給油ポンプ方式を
採用している。 In general, in rotating machines such as vertical shaft water turbine generators, self-lubricating oil is supplied to the guide bearing by circulating lubricating oil through the oil passage in the guide bearing collar using the pumping action of the centrifugal force of the rotating shaft. A pump method is used.
第１図は、この種の立軸回転機として水車発電
機について、案内軸受とその附属構成部分の従構
造の一部を示したものである。同図において、回
転軸１０には、その外周面から適宜の間隔をおい
て同心状に案内軸受カラー１２を一体に固設し、
支持体１６を備える案内軸受１４の軸受メタル１
５を案内軸受カラー１２の外周面に嵌合させて支
持している。案内軸受カラー１２には、その下端
部に複数の油路１３を半径方向に開設し、案内軸
受１４には、案内軸受カラー１２の油路１３の外
周面における開口部と同一位置の内周方向に環状
の油溝１８が凹設してある。 FIG. 1 shows a portion of the guide bearing and its auxiliary components in a water turbine generator as a vertical shaft rotary machine of this type. In the figure, a guide bearing collar 12 is integrally fixed to a rotating shaft 10 concentrically at an appropriate interval from the outer peripheral surface of the rotating shaft 10.
Bearing metal 1 of guide bearing 14 with support 16
5 is fitted onto the outer peripheral surface of the guide bearing collar 12 and supported. The guide bearing collar 12 has a plurality of oil passages 13 opened in the radial direction at its lower end, and the guide bearing 14 has a plurality of oil passages 13 opened in the inner circumferential direction at the same position as the openings on the outer circumferential surface of the oil passages 13 of the guide bearing collar 12. An annular oil groove 18 is recessed in.
回転軸１０の周囲には、環状の油槽２０が設け
てある。この油槽２０は、底壁２０ａ、回転軸１
０と案内軸受カラー１２との間の内周壁２０ｂ、
および案内軸受カラー１２の外側の外周壁２０ｃ
とからなり、外周壁２０ｃには、案内軸受１４の
支持体１６を取付けるためのブラケツト１９が突
設してある。 An annular oil tank 20 is provided around the rotating shaft 10. This oil tank 20 has a bottom wall 20a, a rotating shaft 1
0 and the inner peripheral wall 20b between the guide bearing collar 12,
and the outer peripheral wall 20c of the guide bearing collar 12
A bracket 19 for attaching the support 16 of the guide bearing 14 is provided protruding from the outer peripheral wall 20c.
油槽２０の外周壁２０ｃの項部には、油槽カバ
ー２２を取付け、該油槽カバー２２の内周縁に密
封機構２４を設けて案内軸受カラー１２の外周面
に摺接させてある。また、油槽２０内には、図示
しない冷却水管を内装した環状の冷却器２６を設
けている。 An oil tank cover 22 is attached to the neck of the outer peripheral wall 20c of the oil tank 20, and a sealing mechanism 24 is provided on the inner peripheral edge of the oil tank cover 22, and is brought into sliding contact with the outer peripheral surface of the guide bearing collar 12. Further, in the oil tank 20, there is provided an annular cooler 26 having an internal cooling water pipe (not shown).
案内軸受カラー１２と案内軸受１４とは、上記
の油槽２０内に収容され、潤滑油に浸漬させてあ
る。 The guide bearing collar 12 and the guide bearing 14 are housed in the oil tank 20 and immersed in lubricating oil.
上記の回転軸１０は、案内軸受１４によつて案
内軸受カラー１２を介して支持案内されて回転す
る。回転軸１０と一体に回転する案内軸受カラー
１２に伴つて遠心力が発生し、この遠心力によつ
て油槽２０内の潤滑油は、案内軸受カラー１２の
油路１３の内周面側の開口部から吸込まれて、外
周面側の開口部から案内軸受１４の油溝１８内に
導出され、該油溝１８を経て、案内軸受１４の軸
受メタル１５と案内軸受カラー１２との間に流入
し、この摺動面を潤滑する。摺動面の摩擦によつ
て発生した摩擦熱を受けて温度が上昇した潤滑油
は、冷却器２６により冷却されて再び案内軸受カ
ラー１２の油路１３に吸込まれる。 The rotating shaft 10 described above is supported and guided by a guide bearing 14 via a guide bearing collar 12 and rotates. Centrifugal force is generated as the guide bearing collar 12 rotates together with the rotating shaft 10, and this centrifugal force causes the lubricating oil in the oil tank 20 to flow through the opening on the inner peripheral surface side of the oil passage 13 of the guide bearing collar 12. The oil is drawn into the oil groove 18 of the guide bearing 14 through the opening on the outer peripheral surface, and flows through the oil groove 18 between the bearing metal 15 of the guide bearing 14 and the guide bearing collar 12. , lubricate this sliding surface. The lubricating oil, whose temperature has increased due to the frictional heat generated by the friction of the sliding surfaces, is cooled by the cooler 26 and sucked into the oil passage 13 of the guide bearing collar 12 again.
上記のように、立軸回転機の案内軸受の給油
は、回転軸の遠心力によるポンプ作用を利用し
て、油槽内の潤滑油を案内軸受カラーの油路を介
して循環されているが、このような自己給油ポン
プ方式の潤滑機構では、回転軸の回転速度が高く
なつて油槽内の油滑油の上下動が生じてもポンプ
作用が低下しないようにする必要がある。 As mentioned above, when lubricating the guide bearing of a vertical shaft rotating machine, the lubricating oil in the oil tank is circulated through the oil passage of the guide bearing collar using the pumping action caused by the centrifugal force of the rotating shaft. In such a self-lubricating pump type lubrication mechanism, it is necessary to prevent the pumping action from decreasing even if the rotational speed of the rotating shaft increases and the lubricating oil in the oil tank moves up and down.
しかしながら、従来の立軸回転機においては、
油槽２０の内周壁２０ｂと案内軸受カラー１２の
内周面との間隔が構造上および設計上の由から狭
くなつているため、回転軸１０を高速度で回転さ
せた場合、油槽２０の内周壁２０ｂ側の潤滑油が
激しく上下動して油面が変動し、油面が低下した
ときは、案内軸受カラー１２の油路１３に近接し
て油面上部の空気が油路１３に吸込まれたり、さ
らに、油面の変動に伴つて油槽２０内で発生した
気泡を吸込むことになつて、ポンプ特性を低下さ
せるという欠点があつた。 However, in conventional vertical shaft rotating machines,
Because the distance between the inner circumferential wall 20b of the oil tank 20 and the inner circumferential surface of the guide bearing collar 12 is narrow due to structural and design reasons, when the rotating shaft 10 is rotated at high speed, the inner circumferential wall of the oil tank 20 When the lubricating oil on the 20b side moves up and down violently and the oil level fluctuates and the oil level drops, the air above the oil level near the oil passage 13 of the guide bearing collar 12 may be sucked into the oil passage 13. Furthermore, there is a drawback that air bubbles generated in the oil tank 20 due to fluctuations in the oil level are sucked in, which deteriorates the pump characteristics.
また、油面が上昇したときは、油槽２０内の潤
滑油が内周壁２０ｂを越えて漏出し、潤滑油の損
失をもたらす一因となつていた。 Furthermore, when the oil level rises, the lubricating oil in the oil tank 20 leaks over the inner circumferential wall 20b, causing loss of lubricating oil.
この考案は、上記の欠点を除去して、回転軸の
高速回転時においても油面の変動を抑制してポン
プ特性を低下させることなく、潤滑油の漏出を防
止することができる立軸回転機の軸受装置を提供
することを目的とする。 This idea eliminates the above-mentioned drawbacks and is a vertical shaft rotating machine that can suppress oil level fluctuations even when the rotating shaft rotates at high speeds, prevent lubricating oil leakage without degrading pump characteristics. The purpose is to provide a bearing device.
以下、この考案の実施例について、図面を参照
して説明する。 Examples of this invention will be described below with reference to the drawings.
第２図は、この考案の要部を示す縦断面図であ
る。軸受カラーと軸受とを該軸受カラーと回転軸
との間に配された内周壁２０ｂを備えた油槽２０
内に、複数の気泡放出孔３４を備えたリング状の
油面変動防止板３０を前記内周壁の油槽の内側の
前記軸受カラーの油路１３の位置よりは高く、前
記油槽の油面よりは低い位置に取付け、該油面変
動防止板３０の外周部には眞鍮等からなるリング
状部材３２の半径方向移動自在に嵌め込まれ、該
油面変動防止板３０の外周と前記軸受カラーの内
周面との間に所定の隙間を保つようにした。 FIG. 2 is a longitudinal sectional view showing the main parts of this invention. An oil tank 20 including a bearing collar and an inner peripheral wall 20b disposed between the bearing collar and the rotating shaft.
A ring-shaped oil level fluctuation prevention plate 30 provided with a plurality of bubble release holes 34 is installed inside the inner peripheral wall at a position higher than the oil passage 13 of the bearing collar inside the oil tank and lower than the oil level of the oil tank. A ring-shaped member 32 made of brass or the like is fitted into the outer periphery of the oil level fluctuation prevention plate 30 so as to be movable in the radial direction, and the outer periphery of the oil level fluctuation prevention plate 30 and the inner surface of the bearing collar are fitted. A predetermined gap was maintained between it and the surrounding surface.
上記のように構成すると、回転軸１０を回転さ
せた場合、油槽２０内の潤滑油が、油面変動防止
板３０と案内軸受カラー１２との間のすき間を通
つて上下動する際の運動エネルギーが減衰するか
ら、油面の変動も少なくなる。したがつて、油面
が最低位置まで低下したときでも、案内軸受カラ
ー１２の油路１３に近接することはないから、油
面の上部の空気が油路１３に吸込まれることはな
い。 With the above configuration, when the rotating shaft 10 is rotated, the kinetic energy generated when the lubricating oil in the oil tank 20 moves up and down through the gap between the oil level fluctuation prevention plate 30 and the guide bearing collar 12 is reduced. Since the oil level is attenuated, fluctuations in the oil level are also reduced. Therefore, even when the oil level drops to the lowest position, it does not come close to the oil passage 13 of the guide bearing collar 12, so air above the oil level is not sucked into the oil passage 13.
また、油面の変動によつて油槽２０内で発生し
た気泡は、油面変動防止板３０の下面まで上昇し
て、その部分は気泡放出孔３４から放出されるか
ら、油路１３に多量の気泡が吸込まれることもな
い。 In addition, bubbles generated in the oil tank 20 due to oil level fluctuations rise to the bottom surface of the oil level fluctuation prevention plate 30 and are released from the bubble release holes 34, so that a large amount of bubbles is released into the oil passage 13. No air bubbles are sucked in.
第３図は、この考案の他の実施例を示し、油面
変動防止板３０を軸方向に適宜の距離をおいて３
段階に配置したものである。このような配置にす
ると、油面の変動がとくに激しい場合、油面がど
のような位置に低下したときでも、何れかの油面
変動防止板によつて油面の変動を抑制することが
できる。この実施例のように油面変動防止板を多
段階構成とする場合は、最下段の油面変動防止板
と案内軸受カラーの油路との間の距離が過小とな
らないような関係位置に配置して気泡の吸込みを
規制する必要がある。 FIG. 3 shows another embodiment of this invention, in which the oil level fluctuation prevention plate 30 is placed at an appropriate distance in the axial direction.
It is arranged in stages. With this arrangement, if the oil level fluctuates particularly sharply, any oil level fluctuation prevention plate can suppress the oil level fluctuation no matter where the oil level falls. . When the oil level fluctuation prevention plate is configured in multiple stages as in this example, it should be placed at a position where the distance between the lowest oil level fluctuation prevention plate and the oil passage of the guide bearing collar is not too small. It is necessary to control the suction of air bubbles.
第４図はこの考案の他の実施例を示す一部縦断
面図である。第４図おいて、第３図と同じ部分に
は同一符号を付してあるが、４３はスラスト軸
受、４４は集油リング、４５は油冷却器である。 FIG. 4 is a partial vertical sectional view showing another embodiment of this invention. In FIG. 4, the same parts as in FIG. 3 are denoted by the same reference numerals; 43 is a thrust bearing, 44 is an oil collecting ring, and 45 is an oil cooler.
上記の各実施例において、油面変動防止板の素
材は、任意の材質の板材を用いることができる
が、板材に限らず、金網を使用してもよく、金網
の網目によつて油面の上下動の減衰と気泡の放出
との双方の機能を効果的に発揮させることができ
る。 In each of the above embodiments, the material of the oil level fluctuation prevention plate can be any plate material, but it is not limited to the plate material, and a wire mesh may also be used. Both the functions of damping vertical motion and releasing bubbles can be effectively exhibited.
以上、説明したように、この考案は、自己給油
ポンプ方式による潤滑機構を備える立軸回転機の
案内軸受カラー側の油槽内周壁に、気泡放出孔を
設けた油面変動防止板を周設する構成としてい
る。 As explained above, this invention has a structure in which an oil level fluctuation prevention plate with bubble release holes is installed around the inner peripheral wall of the oil tank on the guide bearing collar side of a vertical shaft rotating machine equipped with a lubrication mechanism using a self-lubricating pump system. It is said that
したがつて、この考案によれば、回転軸が高周
速度で回転しても、油槽内周壁と案内軸受カラー
との間の潤滑油の上下動が油面変動防止板により
減衰して油面の変動が沈静するから、気泡の発生
が減少するだけでなく、発生した気泡は気泡放出
孔から放出されることと相まつて、案内軸受カラ
ーの油路い吸込まれる気泡はほとんどなくなるた
め、常に安定したポンプ特性によつて円滑に潤滑
油を供給することが可能となる。 Therefore, according to this invention, even if the rotary shaft rotates at a high circumferential speed, the vertical movement of the lubricating oil between the inner peripheral wall of the oil tank and the guide bearing collar is attenuated by the oil level fluctuation prevention plate, and the oil level is reduced. Not only does the fluctuation in the amount of air subside, the generation of air bubbles is reduced, but the generated air bubbles are released from the air bubble release hole, and there are almost no air bubbles sucked into the oil passage of the guide bearing collar. Stable pump characteristics make it possible to supply lubricating oil smoothly.
また、この考案によれば、油面の変動が少なく
なるため、油槽内の潤滑油が内周壁から溢流する
ようなこともなく、潤滑油の漏出による損失を完
全に防止することができる。 Further, according to this invention, since fluctuations in the oil level are reduced, the lubricating oil in the oil tank does not overflow from the inner circumferential wall, and loss due to lubricating oil leakage can be completely prevented.
第１図は、従来の立軸回転機の案内軸受部分の
一部を示す縦断面図、第２図は、この考案の実施
例を示す一部縦断面図、第３図は、この考案の他
の実施例を示す一部縦断面図、第４図はこの考案
の他の実施例を示す一部縦断面図である。
１０……回転軸、１２……案内軸受カラー、１
３……油路、１４……案内軸受、２０……油槽、
２０ｂ……油槽の内周壁、３０……油面変動防止
板、３２……リング状部材、３４……気泡放出
孔。
Fig. 1 is a vertical sectional view showing a part of the guide bearing portion of a conventional vertical shaft rotating machine, Fig. 2 is a partial longitudinal sectional view showing an embodiment of this invention, and Fig. 3 is a partial longitudinal sectional view showing an embodiment of this invention. FIG. 4 is a partial longitudinal sectional view showing another embodiment of this invention. 10... Rotating shaft, 12... Guide bearing collar, 1
3... Oil path, 14... Guide bearing, 20... Oil tank,
20b... Inner peripheral wall of oil tank, 30... Oil level fluctuation prevention plate, 32... Ring-shaped member, 34... Air bubble release hole.
Claims (1)
するよう形成された軸受カラーに半径方向に油
路を貫通させて潤滑油を該軸受カラーの回転に
伴うポンプ作用により付勢し、前記軸受カラー
と軸受とを該軸受カラーと前記回転軸との間に
配された内周壁を備えた油槽内に浸漬してなる
軸受装置において、複数の気泡放出孔を備えた
リング状の油面変動防止板を前記内周壁の油槽
内側の前記軸受カラーの油路の位置よりは高く
前記油槽の油面よりは低い位置に取付け、該油
面変動防止板の外周と前記軸受カラーの内周面
との間に所定の隙間を保つようにしたことを特
徴とする立軸回転機の軸受装置。 (2) 実用新案登録請求の範囲第１項記載の軸受装
置において、油面変動防止板を複数個設けたこ
とを特徴とする立軸回転機の軸受装置。 (3) 実用新案登録請求の範囲第１項記載の軸受装
置において、油面変動防止板の外周部にリング
状部材が半径方向移動自在に嵌め込まれたこと
を特徴とする立軸回転機。[Claims for Utility Model Registration] (1) Lubricating oil is supplied to the bearing collar by passing an oil passage in the radial direction through a bearing collar formed to concentrically surround a rotating shaft and rotate integrally with the shaft. A bearing device in which the bearing collar and the bearing are immersed in an oil bath having an inner circumferential wall disposed between the bearing collar and the rotating shaft, the bearing device is biased by a pump action accompanying rotation. A ring-shaped oil level fluctuation prevention plate provided with a discharge hole is installed at a position higher than the position of the oil passage of the bearing collar inside the oil tank on the inner peripheral wall and lower than the oil level of the oil tank, and the oil level fluctuation prevention plate A bearing device for a vertical shaft rotating machine, characterized in that a predetermined gap is maintained between the outer circumference of the bearing collar and the inner circumferential surface of the bearing collar. (2) A bearing device for a vertical shaft rotating machine, characterized in that a plurality of oil level fluctuation prevention plates are provided in the bearing device according to claim 1 of the utility model registration claim. (3) Utility Model Registration A vertical shaft rotating machine in the bearing device according to claim 1, characterized in that a ring-shaped member is fitted into the outer periphery of the oil level fluctuation prevention plate so as to be movable in the radial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13797081U JPS5842494U (en) | 1981-09-17 | 1981-09-17 | Bearing device for vertical shaft rotating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13797081U JPS5842494U (en) | 1981-09-17 | 1981-09-17 | Bearing device for vertical shaft rotating machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5842494U JPS5842494U (en) | 1983-03-22 |
| JPS6118311Y2 true JPS6118311Y2 (en) | 1986-06-03 |
Family
ID=29931214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13797081U Granted JPS5842494U (en) | 1981-09-17 | 1981-09-17 | Bearing device for vertical shaft rotating machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5842494U (en) |
-
1981
- 1981-09-17 JP JP13797081U patent/JPS5842494U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5842494U (en) | 1983-03-22 |
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