JPS5846307Y2 - Bearing metal anti-sweat structure - Google Patents
Bearing metal anti-sweat structureInfo
- Publication number
- JPS5846307Y2 JPS5846307Y2 JP1979014933U JP1493379U JPS5846307Y2 JP S5846307 Y2 JPS5846307 Y2 JP S5846307Y2 JP 1979014933 U JP1979014933 U JP 1979014933U JP 1493379 U JP1493379 U JP 1493379U JP S5846307 Y2 JPS5846307 Y2 JP S5846307Y2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- bearing
- bearing metal
- main shaft
- recess
- 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
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
- F16C2380/00—Electrical apparatus
- F16C2380/26—Dynamo-electric machines or combinations therewith, e.g. electro-motors and generators
Description
【考案の詳細な説明】
本考案は軸受メタルの発汗防止構造に関し、立形回転機
の直接冷却式軸受メタルの発汗を好適に防止できるもの
である。[Detailed Description of the Invention] The present invention relates to a structure for preventing sweating of a bearing metal, and is capable of suitably preventing sweating in a directly cooled bearing metal of a vertical rotating machine.
水車発電機などの立形回転機の軸受方式の一つとして直
接冷却式軸受メタルを使用するものがあり、この従来構
造を第１，２図に示す。One of the bearing systems for vertical rotating machines such as water turbine generators is one that uses directly cooled bearing metal, and this conventional structure is shown in Figs. 1 and 2.
第１図は軸受部分の右半分縦断面を示すと共に第２図は
その横断面を示す。FIG. 1 shows a longitudinal section of the right half of the bearing part, and FIG. 2 shows its cross section.
図中、１は立形回転機の主軸、２は主軸１に設けられた
スリーブ状の主軸ジャーナル、２ａは主軸ジャーナル２
に設けられた油入、３は主軸ジャーナル２を介して主軸
１を支える円筒状の軸受メタル、４は軸受メタル３を支
える一方オイルパン５とで軸受油槽６を形成する円筒状
の軸受台、７は軸受蓋、８（Ｉ′ｉ軸受油槽内の油面、
９は冷却水管である。In the figure, 1 is the main shaft of a vertical rotating machine, 2 is a sleeve-shaped main shaft journal provided on the main shaft 1, and 2a is the main shaft journal 2.
3 is a cylindrical bearing metal that supports the main shaft 1 via the main shaft journal 2; 4 is a cylindrical bearing stand that supports the bearing metal 3 and forms a bearing oil tank 6 with an oil pan 5; 7 is the bearing cover, 8 (I′i oil level in the bearing oil tank,
9 is a cooling water pipe.
軸受メタル３は、第１図に示すように、上部外形が下部
に対して大径に形成され、大径部の径方向に油入３ａが
設けられると共にとの油入３ａと主軸ジャーナル２の油
入２ａとを連通し得るように内周面に油溝３ｂが設けら
れている。As shown in FIG. 1, the bearing metal 3 has an upper outer shape with a larger diameter than a lower part, and an oil filler 3a is provided in the radial direction of the large diameter portion, and the oil filler 3a and the main shaft journal 2 are connected to each other. An oil groove 3b is provided on the inner peripheral surface so as to communicate with the oil reservoir 2a.
更に、第２図の参照でわかるように、冷却水管９に連通
される冷却路３ｃが軸受メタル３内に環状に設けられ、
この冷却路３ｃ内に仕切板１０，１０ａが上下交互に装
着されている。Furthermore, as can be seen with reference to FIG. 2, a cooling passage 3c communicating with the cooling water pipe 9 is provided in an annular shape within the bearing metal 3.
Partition plates 10 and 10a are installed alternately in the upper and lower parts of the cooling path 3c.
軸受メタル３１１−ｉ主軸ジャーナル２と共に軸受油槽
６内の油に浸されるが、軸受メタル３の支持は次のよう
になされている。The bearing metal 311-i is immersed in oil in the bearing oil tank 6 together with the main shaft journal 2, and the bearing metal 3 is supported as follows.
即ち、第２図に示すように、軸受メタル３の細径部外周
に補強骨１１が放射状に突設される一方、軸受台４の内
周には前記補強骨１１に対応して補強板１２が突設され
ており、補強骨１１と補強板１２との突合せ及びキー１
３の装着によって軸受メタル３が支持される。That is, as shown in FIG. 2, reinforcing bones 11 are provided radially protruding from the outer periphery of the narrow diameter portion of the bearing metal 3, while reinforcing plates 12 are provided on the inner periphery of the bearing base 4 in correspondence with the reinforcing bones 11. is provided protrudingly, and the reinforcing bone 11 and the reinforcing plate 12 are butted and the key 1 is
3 supports the bearing metal 3.
なト、第２図では主軸ジャーナル２の油入２ａ並びに軸
受メタル３の油入３ａ及び油溝３ｂを省いである。In addition, in FIG. 2, the oil filler 2a of the main shaft journal 2 and the oil filler 3a and oil groove 3b of the bearing metal 3 are omitted.
ｌた軸受メタル３ば２分割のものとなっている。The bearing metal 3 is divided into two parts.
斯かる従来の軸受装置では、軸受メタル３の冷却路３ｃ
に冷却水が流れる直接冷却式であるため軸受メタル３の
温度が周囲の空気温度より低くなることがある。In such a conventional bearing device, the cooling path 3c of the bearing metal 3
Since it is a direct cooling type in which cooling water flows through the bearing metal 3, the temperature of the bearing metal 3 may become lower than the temperature of the surrounding air.
この温度差によって油面より出て空気に直接触れる部分
、即ち軸受メタル３の上面であるイの部分及び軸受メタ
ル３の背面であって、補強骨１１で仕切られた各凹部の
天井並びに奥面上部である口の部分に空気中の水分が結
露して発汗する。Due to this temperature difference, the parts that come out from the oil surface and come into direct contact with the air, that is, the upper surface of the bearing metal 3, and the back surface of the bearing metal 3, the ceiling and inner surface of each recess partitioned by the reinforcing ribs 11. Moisture in the air condenses on the upper part of your mouth, causing you to sweat.
この発汗による水滴が潤滑油に混入すると、潤滑油の劣
化が早すると共に軸受各部に錆等が生じやすくなり、水
車発電機等の主軸の運転に支障を来たすことがある。When water droplets from this perspiration get mixed into the lubricating oil, the lubricating oil deteriorates quickly and rust is likely to occur in various parts of the bearing, which may impede the operation of the main shaft of a water turbine generator or the like.
本考案は上記従来技術の欠点、即ち発汗による悪影響を
解消する軸受メタルの発汗防止構造の提供を目的とし、
新規な着想に基づいて案出されたものである。The purpose of the present invention is to provide a structure for preventing sweating of a bearing metal, which eliminates the disadvantages of the above-mentioned conventional technology, namely, the negative effects caused by sweating.
It was devised based on a new idea.
斯かる目的を達成する本考案の構成は、径方向に油入を
有するスリーブ状の主軸ジャーナルが主軸に設けられ、
主軸ジャーナルを介して主軸を立形に支える軸受メタル
が主軸ジャーナルと一緒に軸受油槽に収１す、この軸受
メタルには主軸ジャーナルの油入よりも上方にて径方向
に油入が設けられると共に軸受メタルと主軸ジャーナル
の両油穴間を連通し得る油溝が軸受メタル内周面に設け
られ、更に軸受メタル外周面には軸受メタルの油入より
も下方に環状に凹部が設けられこの凹部と軸受台との間
に補強骨が放射状に架設されると共に軸受メタル内部に
は冷却水が通る冷却路が設けられている立形回転機の軸
受装置において、前記軸受メタルの上面−帯が窪み前記
油溝を通って上昇してきた油がこの上面−帯に発汗防止
の油膜を形成する油溜が設けられると共に、前記補強骨
間に前記軸受メタルの前記凹部の天井とわずかな間隙を
介して架設された扇状の受部と弧状の基部とからなり前
記凹部の天井へ軸受メタルの前記油入からの吐出油を導
ひき前記凹部の天井及び奥面上部に発汗防止の油膜を形
成する油案内が前記軸受油槽内に設けられていることを
特徴とする。The structure of the present invention to achieve such an objective is that a sleeve-shaped main shaft journal having oil entry in the radial direction is provided on the main shaft,
The bearing metal that vertically supports the main shaft via the main shaft journal is housed in the bearing oil tank together with the main shaft journal.This bearing metal is provided with an oil well in the radial direction above the oil well of the main shaft journal. An oil groove is provided on the inner peripheral surface of the bearing metal to allow communication between the oil holes in the bearing metal and the main shaft journal, and an annular recess is provided in the outer peripheral surface of the bearing metal below the oil hole in the bearing metal. In a bearing device for a vertical rotating machine, in which reinforcing bones are installed radially between a bearing base and a bearing base, and a cooling passage through which cooling water passes is provided inside the bearing metal, the upper surface of the bearing metal is recessed. An oil reservoir is provided in which the oil rising through the oil groove forms an oil film to prevent perspiration on the upper surface band, and the oil rises through the upper surface band through a small gap between the reinforcing bones and the ceiling of the recess of the bearing metal. An oil guide consisting of an installed fan-shaped receiving part and an arc-shaped base part, which guides the oil discharged from the oil holder of the bearing metal to the ceiling of the recessed part and forms an oil film to prevent perspiration on the ceiling and the upper part of the inner surface of the recessed part. is provided in the bearing oil tank.
以下、本考案の一実施例を第３，４図を参照して説明す
る。An embodiment of the present invention will be described below with reference to FIGS. 3 and 4.
なお、本実施例は第１，２図に示した従来の軸受装置に
本考案を適用したものであるから、図面中で従来技術と
同一部分には同一符号を付して説明の重複を省く。In addition, since this embodiment is an application of the present invention to the conventional bearing device shown in FIGS. 1 and 2, parts that are the same as those of the prior art in the drawings are given the same reference numerals to avoid redundant explanation. .
第３図は右半分縦断面を示し、第４図はその横断面を示
す。FIG. 3 shows a right half longitudinal section, and FIG. 4 shows its cross section.
第３図に示すように、軸受メタル３の上面は環状全周に
亘って窪みを形成し、これを油溜１４としである。As shown in FIG. 3, the upper surface of the bearing metal 3 forms a depression around the entire annular circumference, which serves as an oil reservoir 14.
一方、第３，４図に示すように、軸受油槽６内には油案
内１５を環状に配置しである。On the other hand, as shown in FIGS. 3 and 4, an oil guide 15 is arranged in an annular manner within the bearing oil tank 6.
個々の油案内１５は扇状の受部１５ａと断面弧状の基部
１５ｂとで形成され、軸受メタル３の補強骨１１間に配
設されて全体として円筒状をなす。Each oil guide 15 is formed of a fan-shaped receiving part 15a and a base part 15b having an arc-shaped cross section, and is disposed between the reinforcing ribs 11 of the bearing metal 3, and has a cylindrical shape as a whole.
油案内１５の受部１５ａの先端は、本実施例の場合軸受
メタル３の大径部の下端部直下１で伸びているが、凹部
の天井とは若干の隙間を確保した状態で当該凹部内へ入
り込１せても良い。In this embodiment, the tip of the receiving portion 15a of the oil guide 15 extends directly below the lower end 1 of the large-diameter portion of the bearing metal 3, but it extends into the recess with a slight clearance from the ceiling of the recess. You can also enter it and put 1.
このように軸受メタル３の上面には油溜１４を設けると
共に軸受メタル３の背面には油案内１５を設けたので、
第３図に矢印で示すように、主軸ジャーナル２のポンプ
作用により油入２ａ→油溝３ｂ→油穴３ａの順に循環す
る潤滑油は油案内１５に流れ込み、一部は主軸ジャーナ
ル２に沿って昇り油溜１４に溜する。In this way, since the oil reservoir 14 is provided on the upper surface of the bearing metal 3 and the oil guide 15 is provided on the back surface of the bearing metal 3,
As shown by the arrow in FIG. 3, the lubricating oil that circulates in the order of oil filler 2a → oil groove 3b → oil hole 3a due to the pump action of the main shaft journal 2 flows into the oil guide 15, and some of it flows along the main shaft journal 2. The rising oil is stored in the rising oil sump 14.
そこで油溜１４の潤滑油によって軸受メタル３の上面、
即ち第１図で示したイ部分に油膜がｌんべんなく形成さ
れ、イ部分が直接空気と触れることがなくなり、発汗が
防止される。Therefore, the upper surface of the bearing metal 3 is
That is, an oil film is evenly formed on the part A shown in FIG. 1, so that the part A is no longer in direct contact with the air, and sweating is prevented.
また油案内１５に流れ込んだ潤滑油はその一部が受部１
５ａより凹部の天井に導びかれ、軸受メタル３の背面、
即ち第１図で示した目部分に沿って流れてこの目部分に
油膜が形成される。Also, part of the lubricating oil that has flowed into the oil guide 15 is
5a to the ceiling of the recess, the back side of the bearing metal 3,
That is, the oil flows along the eye area shown in FIG. 1, and an oil film is formed in this eye area.
したがってイ部分の発汗防止と同様、目部分も直接空気
と触れることがなくなり、発汗が防止される。Therefore, in the same way as preventing sweating in the eye area, the eye area is also prevented from coming into direct contact with the air and sweating is prevented.
なお、油案内１５に溜った潤滑油の残部は基部１５ｂを
越えて軸受油槽６に戻る。The remainder of the lubricating oil accumulated in the oil guide 15 returns to the bearing oil tank 6 over the base 15b.
以上実施例とともに具体的に説明したように、本考案に
よれば、軸受メタル杏面の油溜に溜渣る潤滑油及び軸受
メタルの凹部天井に導びかれる潤滑油によって、今１で
直接空気に触れていた上面及び背面に油膜が形成され、
発汗はこの油膜によって防止される。As specifically explained above in conjunction with the embodiments, according to the present invention, the lubricating oil accumulated in the oil reservoir on the apricot surface of the bearing metal and the lubricating oil guided to the ceiling of the concave portion of the bearing metal are used to directly release air into the air. An oil film is formed on the top and back surfaces that were in contact with the
This oil film prevents sweating.
したがって、潤滑油の劣化や軸受各部の錆発生等の発汗
による悪影響がなくなり、立形回転機の順調な運転が保
証される。Therefore, the adverse effects of sweating, such as deterioration of lubricating oil and rusting of bearing parts, are eliminated, and smooth operation of the vertical rotating machine is guaranteed.
第１，２図は立形回転機の軸受装置の従来構造を示し、
第１図は右半分を示す縦断面図、第２図は第１図におけ
るＡ−Ａ矢視横断面図、第３，４図は本考案に係る軸受
メタルの発汗防止構造の一実施例を示し、第３図は右半
分を示す縦断面図、第４図は第３図におけるＢ−Ｂ矢視
横断面図である。
図面中、１は主軸、２は主軸ジャーナル、２ａは主軸ジ
ャーナルの油入、３は軸受メタル、３ａは軸受メタルの
油入、３ｂは軸受メタルの油溝、３ｃは軸受メタルの冷
却路、６は軸受油槽、１４は油溜、１５は油案内、１５
ａＩｒｉ油案内の受部、１５ｂは油案内の基部である。Figures 1 and 2 show the conventional structure of a bearing device for a vertical rotating machine.
Fig. 1 is a longitudinal sectional view showing the right half, Fig. 2 is a cross sectional view taken along the line A-A in Fig. 1, and Figs. 3 is a longitudinal cross-sectional view showing the right half, and FIG. 4 is a cross-sectional view taken along the line B--B in FIG. 3. In the drawing, 1 is the main shaft, 2 is the main shaft journal, 2a is the main shaft journal oil filler, 3 is the bearing metal, 3a is the oil filler in the bearing metal, 3b is the oil groove in the bearing metal, 3c is the cooling path in the bearing metal, 6 is a bearing oil tank, 14 is an oil reservoir, 15 is an oil guide, 15
The receiving portion 15b of the aIri oil guide is the base of the oil guide.
Claims (1)
軸に設けられ、主軸ジャーナルを介して主軸を立形に支
える軸受メダルが主軸ジャーナルと一緒に軸受油槽に収
まり、この軸受メダルには主軸ジャーナルの油入よりも
上方にて径方向に油入が設けられると共に軸受メタルと
主軸ジャーナルの両油穴間を連通し得る油溝が軸受メタ
ル内周面に設けられ、更に軸受メタル外周面には軸受メ
タルの油入よりも下方に環状に凹部が設けられこの凹部
と軸受台との間に補強骨が放射状に架設されると共に軸
受メタル内部には冷却水が通る冷却路が設けられている
立形回転機の軸受装置に訃いて、前記軸受メタルの上面
−帯が窪み前記油溝を通って上昇してきた油がこの上面
−帯に発汗防止の油膜を形成する油溜が設けられると共
に、前記補強骨間に前記軸受メタルの前記凹部の天井と
わずかな間隙を介して架設された扇状の受部と弧状の基
部とからなり前記凹部の天井へ軸受メタルの前記油入か
らの吐出油を導ひき前記凹部の天井及び奥面上部に発汗
防止の油膜を形成する油案内が前記軸受油槽内に設けら
れていることを特徴とする軸受メタルの発汗防止構造。A sleeve-shaped main shaft journal with oil in the radial direction is provided on the main shaft, and a bearing medal that vertically supports the main shaft via the main shaft journal is housed in the bearing oil tank together with the main shaft journal. An oil inlet is provided in the radial direction above the oil inlet, and an oil groove is provided on the inner peripheral surface of the bearing metal to allow communication between the oil holes of the bearing metal and the main shaft journal. An annular recess is provided below the oil filler in the metal, reinforcing bones are installed radially between the recess and the bearing stand, and a cooling path is provided inside the bearing metal for cooling water to pass through. When a bearing device of a rotating machine is damaged, the upper surface band of the bearing metal is recessed, and an oil reservoir is provided in which the oil rising through the oil groove forms an oil film on the upper surface band to prevent perspiration. It consists of a fan-shaped receiving part and an arc-shaped base, which are installed between the bones with a slight gap between the ceiling and the ceiling of the recess of the bearing metal, and guides discharged oil from the oil inlet of the bearing metal to the ceiling of the recess. A structure for preventing sweating of a bearing metal, characterized in that an oil guide is provided in the bearing oil tank to form an oil film to prevent sweating on the ceiling and upper part of the inner surface of the recess.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979014933U JPS5846307Y2 (en) | 1979-02-09 | 1979-02-09 | Bearing metal anti-sweat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979014933U JPS5846307Y2 (en) | 1979-02-09 | 1979-02-09 | Bearing metal anti-sweat structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55115497U JPS55115497U (en) | 1980-08-14 |
| JPS5846307Y2 true JPS5846307Y2 (en) | 1983-10-21 |
Family
ID=28835736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979014933U Expired JPS5846307Y2 (en) | 1979-02-09 | 1979-02-09 | Bearing metal anti-sweat structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5846307Y2 (en) |
-
1979
- 1979-02-09 JP JP1979014933U patent/JPS5846307Y2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55115497U (en) | 1980-08-14 |
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