JPS5942500Y2 - stern tube bearing - Google Patents
stern tube bearingInfo
- Publication number
- JPS5942500Y2 JPS5942500Y2 JP1980089522U JP8952280U JPS5942500Y2 JP S5942500 Y2 JPS5942500 Y2 JP S5942500Y2 JP 1980089522 U JP1980089522 U JP 1980089522U JP 8952280 U JP8952280 U JP 8952280U JP S5942500 Y2 JPS5942500 Y2 JP S5942500Y2
- Authority
- JP
- Japan
- Prior art keywords
- stern tube
- tube bearing
- bearing
- bearing member
- shaft sleeve
- 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
Landscapes
- Sliding-Contact Bearings (AREA)
Description
【考案の詳細な説明】 本考案は海水潤滑式船尾管軸受の改良に係る。[Detailed explanation of the idea] This invention relates to the improvement of seawater lubricated stern tube bearings.
スリーブを圧入した推進軸を支承する軸受部材が、ゴム
様弾性体より成る絶縁物質の場合、軸スリーブと船体と
の間に生じる電位差のためＢＣ材製等の軸スリーブに電
食が発生する。If the bearing member that supports the propulsion shaft into which the sleeve is press-fitted is an insulating material made of rubber-like elastic material, the shaft sleeve made of BC material or the like will suffer electrolytic corrosion due to the potential difference generated between the shaft sleeve and the hull.
このため、従来から電食の発生を防止するために金属製
又はカーボン製プラシュで作った短絡装置（図示せず）
の一端を船体に接続し、他端を推進軸又は軸スリーブ上
に接触させてアースを行っている。For this reason, a short circuit device (not shown) made of metal or carbon plush has traditionally been used to prevent electrolytic corrosion.
One end is connected to the ship's hull, and the other end is brought into contact with the propulsion shaft or shaft sleeve for grounding.
しかし前記ブランコによるアース面積が挾いこと、及び
ブランコと軸スリーブとの間に油膜等の絶縁物が介在し
た場合、軸スリーブと船体との間が通電不良となり、ア
ース効果が減少する欠点を有している。However, the grounding area of the swing is limited, and if an insulating material such as an oil film is present between the swing and the shaft sleeve, there is a problem in that the current flow between the shaft sleeve and the hull is reduced, reducing the grounding effect. are doing.
本考案の目的はこのような従来の欠点を排除した船尾管
軸受を提供することである。The object of the present invention is to provide a stern tube bearing that eliminates these conventional drawbacks.
図面に示す本考案の実施例について説明する。An embodiment of the present invention shown in the drawings will be described.
金属製シェル３１の内周面に軸受部材３２を加硫接着等
によりライニングし、船尾管軸受３が構成される。The stern tube bearing 3 is constructed by lining the inner peripheral surface of the metal shell 31 with a bearing member 32 using vulcanization adhesive or the like.
該船尾管軸受３が、船体１に取付けられた船尾管２に固
着されている。The stern tube bearing 3 is fixed to a stern tube 2 attached to the hull 1.
前記軸受部材３２は、通電性を有するゴム様弾性体によ
って・形成されている。The bearing member 32 is made of a rubber-like elastic body having electrical conductivity.
軸受部材３２を形成する合成ゴム等に通電性を与える手
段としては、例えばアセチレンの熱分解によって製造さ
れるアセチレンブラックを充填することが望ましい。As a means for imparting electrical conductivity to the synthetic rubber or the like forming the bearing member 32, it is desirable to fill it with acetylene black produced by thermal decomposition of acetylene, for example.
アセチレンブラックは他のカーボンブラックと異なり、
炭素のコロイド様微粒子が鎖状に連なっているために、
通電性を有する軸受部材３２となる。Acetylene black is different from other carbon blacks,
Because carbon colloid-like fine particles are connected in a chain,
The bearing member 32 has electrical conductivity.
該軸受部材３２により形成した船尾管軸受３により、ス
リーブを圧入した推進軸４を支承する。The stern tube bearing 3 formed by the bearing member 32 supports the propulsion shaft 4 into which the sleeve is press-fitted.
上述の如く本考案の船尾管軸受は、通電性を有する軸受
部材３２にて形成したので、推進軸４に圧入した軸スリ
ーブ５から船尾管２へ確実にアースさせることができる
。As described above, the stern tube bearing of the present invention is formed of the bearing member 32 having electrical conductivity, so that the shaft sleeve 5 press-fitted into the propulsion shaft 4 can be reliably grounded to the stern tube 2.
又、短絡装置を兼ねる船尾管軸受３が軸スリーブ５を幅
広く支承しているので、アース効果が充分に発揮できる
。Furthermore, since the stern tube bearing 3, which also serves as a short circuit device, widely supports the shaft sleeve 5, a sufficient grounding effect can be achieved.
従って軸スリーブ５と船体１との間に電位差が生じない
ので、ＢＣ材等からなる軸スリーブ５の電食を完全に防
止できる効果が得られる。Therefore, since no potential difference is generated between the shaft sleeve 5 and the hull 1, it is possible to completely prevent electrolytic corrosion of the shaft sleeve 5 made of BC material or the like.
図は推進軸に装着した本考案の船尾管軸受の軸方向断面
図である。
３・・・・・船尾管軸受、３１・・・・・・シェル、３
２・・・・・・軸受部材。The figure is an axial cross-sectional view of the stern tube bearing of the present invention installed on the propulsion shaft. 3... Stern tube bearing, 31... Shell, 3
2...Bearing member.
Claims (1)
するゴム様弾性体にて形成したことを特徴とする船尾管
軸受。A stern tube bearing of a seawater lubricated type, characterized in that a bearing member is formed of a rubber-like elastic body having electrical conductivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980089522U JPS5942500Y2 (en) | 1980-06-26 | 1980-06-26 | stern tube bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980089522U JPS5942500Y2 (en) | 1980-06-26 | 1980-06-26 | stern tube bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5712824U JPS5712824U (en) | 1982-01-22 |
| JPS5942500Y2 true JPS5942500Y2 (en) | 1984-12-12 |
Family
ID=29451551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980089522U Expired JPS5942500Y2 (en) | 1980-06-26 | 1980-06-26 | stern tube bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942500Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114736A (en) * | 1973-03-08 | 1974-11-01 | ||
| JPS50120712A (en) * | 1974-03-08 | 1975-09-22 |
-
1980
- 1980-06-26 JP JP1980089522U patent/JPS5942500Y2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49114736A (en) * | 1973-03-08 | 1974-11-01 | ||
| JPS50120712A (en) * | 1974-03-08 | 1975-09-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5712824U (en) | 1982-01-22 |
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