JP2002022021A - Stern tube sealing device - Google Patents
Stern tube sealing deviceInfo
- Publication number
- JP2002022021A JP2002022021A JP2000202656A JP2000202656A JP2002022021A JP 2002022021 A JP2002022021 A JP 2002022021A JP 2000202656 A JP2000202656 A JP 2000202656A JP 2000202656 A JP2000202656 A JP 2000202656A JP 2002022021 A JP2002022021 A JP 2002022021A
- Authority
- JP
- Japan
- Prior art keywords
- seal ring
- cut
- stern tube
- sealing device
- tube sealing
- 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.)
- Granted
Links
Landscapes
- Sealing With Elastic Sealing Lips (AREA)
- Sealing Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は船舶用の船尾管シー
ル装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stern tube sealing device for ships.
【０００２】[0002]
【従来の技術】船尾管シール装置は、推進用のプロペラ
を取り付けたプロペラ軸が船から船外に突き出ている船
尾管の船外側に設けられ、海水が船内へ流入するのを防
ぐ働きをしている。従来の船尾管シール装置は、プロペ
ラ軸の末端に嵌め込んで固定したライナーの外周に、複
数のリップ形のシールリングを摺接させて構成してあ
る。シールリングの背面側に加圧流体を供給して、シー
ルリングの背面側から正面側に向けて常に流体を吐出す
るようにした船尾管シール装置もある。2. Description of the Related Art In a stern tube sealing device, a propeller shaft equipped with a propeller for propulsion is provided on the outer side of a stern tube protruding outboard from a ship, and serves to prevent seawater from flowing into the ship. ing. A conventional stern tube sealing device is configured by sliding a plurality of lip-shaped seal rings on the outer periphery of a liner fitted and fixed to the end of a propeller shaft. There is also a stern tube sealing device in which a pressurized fluid is supplied to the back side of a seal ring to constantly discharge the fluid from the back side to the front side of the seal ring.
【０００３】船尾管シール装置において、古くなったシ
ールリングを新しい物に交換する際には、プロペラを外
した上で交換する場合と、プロペラを外さないで交換す
る場合とがある。後者の場合には、新品の継ぎ目の無い
シールリングを必ずどこか一箇所で切断しないことには
ライナー外周に装着できず、切断した箇所は装着後に接
着して元通りに繋いでいた。これまで、船尾管シール装
置の密封性を確保するためには、一度切断したシールリ
ングを接着して繋ぐことが当然必要であると考えられて
いた。[0003] In the stern tube sealing device, when replacing an old seal ring with a new one, there are a case where the seal ring is replaced after removing the propeller and a case where the seal ring is replaced without removing the propeller. In the latter case, a new seamless seal ring could not be mounted on the outer periphery of the liner unless it was cut at any one place, and the cut part was adhered after the mounting and connected back. Heretofore, it has been considered that it is naturally necessary to bond and connect the once-sealed seal ring in order to ensure the sealing performance of the stern tube seal device.
【０００４】シールリングの接着は、図４に示すような
ボンディング治具２０を用いてシールリング３の切断面
２１ａ，２１ｂどうしを突き合わせて接着剤を塗り、接
着剤が乾くまでそのまま保持していなければならず、こ
の作業はどうしても空気中で行う必要があった。そのた
め、プロペラを外さないでシールリングを交換するに
は、船をドライドッグ入渠させるか、または海上で船尾
管シール装置を完全に海面上に出すことが不可欠であっ
た。[0004] In order to bond the seal ring, the cut surfaces 21a and 21b of the seal ring 3 are brought into contact with each other using a bonding jig 20 as shown in FIG. 4, and an adhesive is applied. This had to be done in the air. Therefore, in order to replace the seal ring without removing the propeller, it was indispensable that the ship was docked with a dry dog, or the stern tube sealing device was completely raised above the sea surface.
【０００５】[0005]
【発明が解決しようとする課題】しかし、船の構造上船
尾管シール装置を完全に海面上に出すことができない船
も多く、ドライドッグに入渠させるにしても費用が掛か
るし、運行スケジュールや入渠スケジュールの都合等が
あって、すぐには入渠できない場合もある。However, due to the structure of the ship, there are many ships that cannot completely put the stern tube sealing device on the sea surface. Due to schedule schedules, it may not be possible to enter the dock immediately.
【０００６】本発明は以上に述べたような実情に鑑み、
プロペラを外さずに、海水中でもシールリングの交換が
可能な船尾管シール装置を提供することを目的とする。The present invention has been made in view of the above-described circumstances,
An object of the present invention is to provide a stern tube sealing device capable of replacing a seal ring even in seawater without removing a propeller.
【０００７】[0007]
【課題を解決するための手段】上記の課題を解決するた
めに本発明者が着目したのは、これまで当然のことのよ
うに行ってきたシールリング切断箇所の接着を省けない
だろうかという点である。シールリングは弾性材料から
成り、船尾管に装着した時には自然状態よりも全体的に
若干縮んだ状態となるので、切断時にシールリングの欠
損が無ければ切断箇所に目に見えるような大きな隙間が
空くことはない。シールリングによる密封性といって
も、シールリングの背面側環状空間に加圧流体を供給し
て、シールリングの背面側から正面側に流体を吐出する
ようにした船尾管シール装置では、シールリングとライ
ナーとの隙間から常に流体が漏れているわけで、請求項
１に記載したように、シールリング切断箇所の隙間から
漏れる流体の流量を見越して、その分余計に流体をシー
ルリング背面側に供給してやればシール性能にはなんら
支障がない。要は、シールリング背面側と正面側にかか
るの圧力の差を、切れ目のないシールリングを用いた時
と同じに保持すれば良いと言える。Means for Solving the Problems In order to solve the above-mentioned problems, the present inventor paid attention to the point that it would be possible to omit the adhesion of the seal ring cut portion, which has been performed as a matter of course. It is. The seal ring is made of an elastic material, and when attached to the stern tube, it is slightly shrunk as a whole compared to the natural state.Therefore, if there is no breakage of the seal ring at the time of cutting, a large gap is visible at the cut part Never. In the stern tube sealing device in which the pressurized fluid is supplied to the annular space on the rear side of the seal ring and the fluid is discharged from the rear side to the front side of the seal ring, the seal ring may be said to be a seal ring. Fluid always leaks from the gap between the seal ring and the liner, and as described in claim 1, in anticipation of the flow rate of the fluid leaking from the gap at the seal ring cutting point, the fluid is further added to the seal ring rear side by that amount. If supplied, the sealing performance will not be affected at all. In short, it can be said that the difference between the pressure applied to the back side and the pressure applied to the front side of the seal ring should be kept the same as when a continuous seal ring is used.
【０００８】また請求項２に記載したように、シールリ
ングの切断箇所を締結手段により繋ぎ止めることで、シ
ールリングは接着したのと同じように隙間なく強固に接
合され、接着したものと同等の密封性が得られる。この
場合にはシールリングの背面側から正面側に向けて流体
を吐出しない構造の船尾管シール装置にも適用できる。Further, as described in claim 2, by fixing the cut portion of the seal ring by a fastening means, the seal ring is firmly joined without any gap as in the case of bonding, and is equivalent to the bonded one. Sealability is obtained. In this case, the present invention is also applicable to a stern tube sealing device having a structure in which fluid is not discharged from the back side to the front side of the seal ring.
【０００９】また、上記したいずれの場合においても、
請求項３に記載したように、切断したシールリングの切
断面に粘着剤を塗布し、切断箇所の隙間を埋めるように
したならば、切断箇所からの流体の漏れを防げるので船
尾管シール装置の信頼性が高められる。In any of the above cases,
As described in claim 3, if the adhesive is applied to the cut surface of the cut seal ring to fill the gap between the cut portions, the leakage of the fluid from the cut portion can be prevented. Reliability is improved.
【００１０】[0010]
【発明の実施の形態】以下、本発明の実施形態を図１乃
至図３に基づいて具体的に説明する。本発明の船尾管シ
ール装置は、図１に示すようにプロペラ軸１が船外に突
き出している船尾管１０の船外側に設けられる。プロペ
ラ軸１の末端にあるプロペラ１１にはライナー２が取り
付けてあり、ライナー２の胴部外周には３本のリップ形
のシールリング３のリップが摺接しており、各シールリ
ング３は船尾管１０にボルトで段積み状に固定されるケ
ーシング部材１２に、挟み込むようにして保持されてい
る。最も船尾側の第１シールリング３と、その隣の第２
シールリング３はリップが海水側に向けられ、海水が船
内に流入するのを防ぐ働きをしており、最も船内側の第
３シールリング３はリップを船内側に向かせてあって、
船内側の潤滑油が船外に漏れるのを防いでいる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to FIGS. The stern tube sealing device of the present invention is provided on the outboard side of the stern tube 10 from which the propeller shaft 1 protrudes outboard, as shown in FIG. A liner 2 is attached to a propeller 11 at an end of the propeller shaft 1, and three lip-shaped seal rings 3 are in sliding contact with the outer periphery of the body of the liner 2, and each seal ring 3 is a stern tube. It is held so as to be sandwiched by a casing member 12 which is fixed to the stack 10 by bolts. The first seal ring 3 closest to the stern and the second seal ring
The seal ring 3 has the lip directed to the seawater side and functions to prevent seawater from flowing into the ship, and the third seal ring 3 on the innermost side of the ship has the lip facing the shipboard side,
This prevents the lubricating oil inside the ship from leaking outboard.
【００１１】前記の各シールリング３は、装着する際に
一箇所を鋭利に切断されており、これを図２に示すよう
にプロペラ１１が取り付いたままの状態のライナー２に
抱き着かせてから、切断箇所５をプロペラ軸１の真下に
配置し、切断面どうしの間になるべく隙間が空かないよ
うに、切断面どうしを押し付けるようにしてケーシング
部材１２に保持させてある。各シールリング３のリップ
の周囲にはスプリング１３を巻き付けてある。Each of the seal rings 3 is sharply cut at one point when the seal ring 3 is mounted. The seal ring 3 is hung on the liner 2 with the propeller 11 still attached as shown in FIG. The cut portion 5 is disposed directly below the propeller shaft 1 and is held by the casing member 12 so that the cut surfaces are pressed against each other so as to minimize a gap between the cut surfaces. A spring 13 is wound around the lip of each seal ring 3.
【００１２】各シールリング３の背面側に形成される環
状空間４ａ，４ｂには、船内側から加圧流体を供給する
配管１４ａ，１４ｂが接続してあり、そこから空気や清
水などの流体を供給し、シールリング３の背面側から正
面側に向けて、シールリング３とライナー２との摺接部
を通って、常時流体を吐出させることによりシール性が
生まれるものである。Pipes 14a and 14b for supplying pressurized fluid from the inside of the ship are connected to annular spaces 4a and 4b formed on the back side of each seal ring 3, from which fluids such as air and fresh water are supplied. The fluid is supplied and the fluid is constantly discharged from the back side to the front side of the seal ring 3 through the sliding contact portion between the seal ring 3 and the liner 2 to thereby provide a sealing property.
【００１３】ただし、各シールリング３は先に述べたよ
うに切断したままの状態で装着してあるので、切断箇所
５の僅かな隙間からでも流体が漏れるために、切れ目の
無いシールリングを用いた時と同じ流量の流体を前記環
状空間４ａ，４ｂに供給しても、十分なシール性能は得
られない。切断箇所５から漏れる分だけ余計に流体を供
給し、シールリング背面側と正面側にかかる圧力の差
を、切れ目の無いシールリングを用いた時と同じ状態に
保持する必要がある。However, since each seal ring 3 is mounted in a cut state as described above, since a fluid leaks even from a slight gap at the cut portion 5, a seal ring having no cut is used. Even if the same flow rate of fluid is supplied to the annular spaces 4a and 4b, sufficient sealing performance cannot be obtained. It is necessary to supply extra fluid by the amount leaked from the cut portion 5 and to maintain the difference between the pressures applied to the back side and the front side of the seal ring in the same state as when a seal ring having no break is used.
【００１４】余計に供給すべき流体の流量は、実験と計
算によってほぼ正確に算出できる。例えば供給する流体
が常温の空気で、ライナー胴部の外径が６００ｍｍの＃
６００シールリングの場合、シールリング正面側に２．
０ｋｇｆ／ｃｍ２絶対圧、シールリング背面側に２．２
ｋｇｆ／ｃｍ２絶対圧の圧力がそれぞれ加わったと仮定
すると、平行二面幅における圧縮性流体の流れの式か
ら、シールリング切断箇所の隙間を流れる空気の流量を
算出すると以下のようになる。The flow rate of the additional fluid to be supplied can be calculated almost exactly by experiments and calculations. For example, the fluid to be supplied is air at room temperature, and the outer diameter of the liner body is 600 mm.
In the case of a 600 seal ring, 2.
0 kgf / cm 2 absolute pressure, 2.2 on back of seal ring
Assuming that a pressure of kgf / cm 2 absolute pressure is applied, the flow rate of the air flowing through the gap at the seal ring cutting point is calculated as follows from the expression of the flow of the compressible fluid in the parallel two-plane width.
【００１５】[0015]
【表１】 [Table 1]
【００１６】一方で、切断した＃６００シールリング
を、切断箇所の隙間を極力小さくなるようにしてケーシ
ング部材に組み込んで以下のような実験を行う。シール
リング正面側を清水にて２．０ｋｇｆ／ｃｍ２絶対圧に
加圧し、シールリング背面側を大気圧に保持すると、シ
ールリング切断箇所の隙間を通って、シールリングの正
面側から背面側に３２０ｃｃ／ｍｉｎの清水が浸入する
結果を得た。そこで、平行二面幅における非圧縮性流体
の流れの式を用い、この浸入量に相当する平均隙間を求
めると約０．０７ｍｍとなる。On the other hand, the following experiment is performed by incorporating the cut # 600 seal ring into the casing member so as to minimize the gap at the cut position. When the front side of the seal ring is pressurized to 2.0 kgf / cm 2 absolute pressure with clear water and the back side of the seal ring is kept at atmospheric pressure, the seal ring is cut from the front side to the back side through the gap at the cut point of the seal ring. The result that 320 cc / min of fresh water entered was obtained. Then, using the equation of the flow of the incompressible fluid in the parallel two-plane width, the average gap corresponding to this infiltration amount is about 0.07 mm.
【００１７】さらに、この状態からシールリングの背面
側に空気圧を徐々に加えていくと、やがて清水の浸入が
止み、背面側の圧力が正面側より０．２ｋｇｆ／ｃｍ２
高い２．２ｋｇｆ／ｃｍ２絶対圧となった時の空気流量
は２５ＮＬ／ｍｉｎであった。表１と、この実験の結果
より、シールリング切断箇所の隙間からは１３ＮＬ／ｍ
ｉｎの空気が漏れており、ライナーとの摺接部からは１
２ＮＬ／ｍｉｎの空気が吐出していることが確認され
た。つまり加圧流体として空気を用いる場合、切断した
シールリングでは、切断しないものに比べて約２倍の空
気を供給する必要があるという結果が出た。Further, when air pressure is gradually applied to the back side of the seal ring from this state, the infiltration of fresh water stops, and the pressure on the back side becomes 0.2 kgf / cm 2 from the front side.
The air flow rate at a high absolute pressure of 2.2 kgf / cm 2 was 25 NL / min. From Table 1 and the results of this experiment, 13 NL / m
in air leaks from the sliding contact with the liner.
It was confirmed that 2 NL / min of air was discharged. In other words, when air was used as the pressurized fluid, it was found that it was necessary to supply about twice as much air with a cut seal ring than with a non-cut seal ring.
【００１８】切断したシールリング３を装着する際に、
切断面に粘着剤を塗布して切断箇所５の隙間を埋めてお
けば、加圧流体の供給量を抑えることができる。When mounting the cut seal ring 3,
If an adhesive is applied to the cut surface to fill the gap at the cut portion 5, the supply amount of the pressurized fluid can be suppressed.
【００１９】図３は、切断したシールリング３を締結手
段６により繋ぎ止める場合の実施形態を示している。こ
の場合、シールリング３を切断する前に、角棒にボルト
穴を空けた格好の補助ピース１５をシールリング３に接
着しておき、シールリング３を補助ピース１５ともども
切断する。これをライナー２外周に抱き着かせた後、分
断した補助ピース１５，１５同士を、締結手段となるボ
ルト６とナット１６により繋ぎ止める。このようにする
と、シールリング３の切断面同士を強く押し付けて、切
断箇所５の隙間を無くすことができるので、接着したシ
ールリングと同等の密封性を保持することができる。こ
の場合にもシールリングの切断面に粘着剤を塗布してお
くことで、信頼性をさらに高めることができる。FIG. 3 shows an embodiment in which the cut seal ring 3 is fastened by fastening means 6. In this case, before cutting the seal ring 3, a suitable auxiliary piece 15 having a square bar with a bolt hole is bonded to the seal ring 3, and the seal ring 3 is cut together with the auxiliary piece 15. After holding this on the outer periphery of the liner 2, the divided auxiliary pieces 15, 15 are joined together by a bolt 6 and a nut 16 serving as fastening means. By doing so, the cut surfaces of the seal ring 3 are strongly pressed against each other, and the gap at the cut portion 5 can be eliminated, so that the same sealing performance as the bonded seal ring can be maintained. Also in this case, the reliability can be further improved by applying an adhesive to the cut surface of the seal ring.
【００２０】[0020]
【発明の効果】本発明の船尾管シール装置では、シール
リングを一箇所切断して装着し、その後の切断箇所の接
着を要しないので、シールリングの交換を、プロペラを
外さずに海水中でも簡潔に行うことができ、これまでシ
ールリング交換作業に要していた費用と時間を大幅に削
減できる。According to the stern tube sealing device of the present invention, since the seal ring is cut at one place and mounted, and the subsequent cut portion is not required to be adhered, the seal ring can be easily replaced in seawater without removing the propeller. The cost and time required for the seal ring replacement work can be greatly reduced.
【００２１】請求項２記載の発明によれば、シールリン
グの切断箇所を、接着した時と同じように強固に接合で
き、シールリングによる密封性は、接着したものと比べ
ても遜色の無いものとなる。According to the second aspect of the invention, the cut portion of the seal ring can be joined firmly as in the case of bonding, and the sealing performance of the seal ring is not inferior to that of the bonded one. It becomes.
【００２２】さらに、請求項３に記載したように、シー
ルリングの切断面に粘着剤を塗布することで、切断箇所
からの流体の漏れを極力防ぐことができ、切断されたま
まのシールリングで構成された本発明の船尾管シール装
置の信頼性を高めることができる。Furthermore, by applying an adhesive to the cut surface of the seal ring as described in claim 3, leakage of the fluid from the cut portion can be prevented as much as possible, and the cut seal ring can be used as it is. The reliability of the configured stern tube sealing device of the present invention can be improved.
【図１】本発明による船尾管シール装置の実施形態を示
す断面図である。FIG. 1 is a sectional view showing an embodiment of a stern tube sealing device according to the present invention.
【図２】切断されたシールリングの組み付け状態を示す
斜視図である。FIG. 2 is a perspective view showing an assembled state of a cut seal ring.
【図３】シールリングの切断箇所を締結手段により繋ぎ
止める実施形態を示す斜視図である。FIG. 3 is a perspective view showing an embodiment in which a cut portion of a seal ring is fixed by a fastening means.
【図４】従来、切断したシールリングの接着に用いてい
たボンディング治具を示す斜視図である。FIG. 4 is a perspective view showing a bonding jig conventionally used for bonding a cut seal ring.
１ プロペラ軸 ２ ライナー ３ シールリング ４ａ，４ｂ 環状空間 ５ 切断箇所 ６ ボルト（締結手段） DESCRIPTION OF SYMBOLS 1 Propeller shaft 2 Liner 3 Seal ring 4a, 4b Annular space 5 Cutting place 6 Bolt (fastening means)
Claims (3)
（２）の外周に、シールリング（３）を複数個並べて摺
接させ、シールリング（３）の背面側の環状空間（４
ａ，４ｂ）に加圧流体を供給し、シールリング（３）の
背面側から正面側に向けて流体を吐出している船尾管シ
ール装置において、前記シールリング（３）は一箇所で
切断されており、加圧流体を、シールリング（３）の切
断箇所（５）から漏れる分だけ余計に供給していること
を特徴とする船尾管シール装置。1. A plurality of seal rings (3) are arranged and slid in contact with the outer periphery of a liner (2) fixed to a propeller shaft (1) to form an annular space (4) on the rear side of the seal ring (3).
In the stern tube sealing device in which a pressurized fluid is supplied to a, 4b) and the fluid is discharged from the back side to the front side of the seal ring (3), the seal ring (3) is cut at one place. A stern tube sealing device, characterized in that the pressurized fluid is additionally supplied by an amount that leaks from the cut portion (5) of the seal ring (3).
（２）の外周に、シールリング（３）を摺接させて構成
してある船尾管シール装置において、前記シールリング
（３）は一箇所で切断されており、その切断箇所（５）
を締結手段（６）により繋ぎ止めてあることを特徴とす
る船尾管シール装置。2. A stern tube sealing device comprising a seal ring (3) slidably contacting an outer periphery of a liner (2) fixed to a propeller shaft (1), wherein the seal ring (3) is provided at one position. At the cutting point (5)
The stern tube sealing device is fixed by a fastening means (6).
粘着剤を塗布し、切断箇所（５）の隙間を埋めるように
したことを特徴とする請求項１又は２記載の船尾管シー
ル装置。3. The stern tube sealing device according to claim 1, wherein an adhesive is applied to a cut surface of the cut seal ring (3) to fill a gap at the cut portion (5). .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000202656A JP4764540B2 (en) | 2000-07-04 | 2000-07-04 | Stern tube sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000202656A JP4764540B2 (en) | 2000-07-04 | 2000-07-04 | Stern tube sealing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002022021A true JP2002022021A (en) | 2002-01-23 |
| JP4764540B2 JP4764540B2 (en) | 2011-09-07 |
Family
ID=18700151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000202656A Expired - Lifetime JP4764540B2 (en) | 2000-07-04 | 2000-07-04 | Stern tube sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4764540B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009162290A (en) * | 2008-01-07 | 2009-07-23 | Japan Hamuwaaji Kk | Sealing structure of rotary vane type helm machine and replacing method of lower ring seal |
| KR101571113B1 (en) | 2014-02-10 | 2015-11-24 | 주식회사 화승알앤에이 | Connecting Device For Repalcing A Seal |
| JP2018034268A (en) * | 2016-08-31 | 2018-03-08 | ファナック株式会社 | Joint structure and robot |
| KR102329940B1 (en) * | 2021-06-28 | 2021-11-22 | 박영섭 | Stern tube sealing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02168075A (en) * | 1988-12-20 | 1990-06-28 | Nok Corp | Sealing device and cutting method thereof and cutting device |
| JPH07242197A (en) * | 1994-03-04 | 1995-09-19 | Nippon Marine Techno Kk | Stern tube sealing device |
| JPH08219294A (en) * | 1994-12-28 | 1996-08-27 | Dana Corp | Flexible fluid seal and journal seal assembly |
-
2000
- 2000-07-04 JP JP2000202656A patent/JP4764540B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02168075A (en) * | 1988-12-20 | 1990-06-28 | Nok Corp | Sealing device and cutting method thereof and cutting device |
| JPH07242197A (en) * | 1994-03-04 | 1995-09-19 | Nippon Marine Techno Kk | Stern tube sealing device |
| JPH08219294A (en) * | 1994-12-28 | 1996-08-27 | Dana Corp | Flexible fluid seal and journal seal assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009162290A (en) * | 2008-01-07 | 2009-07-23 | Japan Hamuwaaji Kk | Sealing structure of rotary vane type helm machine and replacing method of lower ring seal |
| KR101571113B1 (en) | 2014-02-10 | 2015-11-24 | 주식회사 화승알앤에이 | Connecting Device For Repalcing A Seal |
| JP2018034268A (en) * | 2016-08-31 | 2018-03-08 | ファナック株式会社 | Joint structure and robot |
| US10480695B2 (en) | 2016-08-31 | 2019-11-19 | Fanuc Corporation | Joint structure and robot |
| KR102329940B1 (en) * | 2021-06-28 | 2021-11-22 | 박영섭 | Stern tube sealing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4764540B2 (en) | 2011-09-07 |
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