EP1208039B1 - Tube d'etambot - Google Patents

Tube d'etambot Download PDF

Info

Publication number
EP1208039B1
EP1208039B1 EP00937420A EP00937420A EP1208039B1 EP 1208039 B1 EP1208039 B1 EP 1208039B1 EP 00937420 A EP00937420 A EP 00937420A EP 00937420 A EP00937420 A EP 00937420A EP 1208039 B1 EP1208039 B1 EP 1208039B1
Authority
EP
European Patent Office
Prior art keywords
stern tube
tube
fastening means
ship
fixed part
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 - Lifetime
Application number
EP00937420A
Other languages
German (de)
English (en)
Other versions
EP1208039A1 (fr
Inventor
Nils Bokedal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cedervall Marine Products AB
SKF Marine GmbH
Original Assignee
Skandiaverken Flexitube AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Skandiaverken Flexitube AB filed Critical Skandiaverken Flexitube AB
Priority to DK00937420T priority Critical patent/DK1208039T3/da
Publication of EP1208039A1 publication Critical patent/EP1208039A1/fr
Application granted granted Critical
Publication of EP1208039B1 publication Critical patent/EP1208039B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/36—Shaft tubes

Definitions

  • the present invention relates to a stern tube for ships, for enclosing a propeller shaft which extends between a propeller and a driving motor. More specifically, the invention relates to a stern tube comprising a tube having at least one interior bearing supporting the propeller shaft, a first fastening means which is fixedly connected to a fixed part of the ship and arranged on a part facing the propeller, and a second fastening means which is spaced apart from the first fastening means and connected to a second fixed part of the ship.
  • a stern tube comprising a tube having at least one interior bearing supporting the propeller shaft, a first fastening means which is fixedly connected to a fixed part of the ship and arranged on a part facing the propeller, and a second fastening means which is spaced apart from the first fastening means and connected to a second fixed part of the ship.
  • Stern tubes are used on large ships to enclose the propeller shaft which extends from a driving motor, through the ship hull and out to a propeller.
  • the stern tube is intended to stabilise the propeller shaft, while establishing a seal between the rotating propeller shaft and the fixed wall of the ship.
  • Conventional stern tubes are normally attached to a front and a rear fastening means by casting or the like. It is, however, difficult to adjust the stern tube to the propeller shaft, and in addition the stern tube is often somewhat deformed when being attached. As a result, after mounting of the stern tube, a great deal of adjustment work is normally required before the propeller shaft can be positioned.
  • the present invention relates to a stern tube for ships, for enclosing a propeller shaft, which extends between a propeller and a driving motor, comprising a tube having at least one interior bearing supporting the propeller shaft.
  • the stern tube comprises a first fastening means which is fixedly connected to a fixed part of the ship and arranged on a part facing the propeller, and a second fastening means which is spaced apart from the first fastening means and connected to a second fixed part of the ship.
  • the invention is distinguished in that the second fastening means allows axial displacement of the stern tube relative to the fixed part, but prevents displacement of the stern tube in the radial direction.
  • this can be provided by means of a holder part which has a sliding surface arranged against the tube wall.
  • the stern tube is allowed some degree of movability relative to the ship.
  • strains in the stern tube, due to the attachment to the ship, are avoided and there is some degree of adjustment to the propeller shaft in question.
  • this construction such adjustment can take place initially, during the mounting of the stern tube and the propeller shaft, as well as during subsequent use. Owing to this, uneven wear on the bearings is avoided, the wear thus being drastically reduced and the strength increased.
  • the mounting of the stern tube and its adjustment to the propeller shaft is also facilitated.
  • the second fastening means further allows pivoting of the stern tube relative to the fixed part of the ship.
  • the second fastening means comprising a holder frame which is attached to the fixed part of the ship and has an inner curved surface and a holder part which is arranged on the tube and has an outer surface with a corresponding curvature.
  • the possibilities of adjusting the stern tube are further increased, which further reduces the wear, thus increasing the strength.
  • the stern tube can, among other things, adjust to beating movements of the propeller shaft, which often occur and constitute an important reason for the wear on bearings and the like.
  • a stern tube according to the invention comprises a hollow-circular tube 1 adapted to enclose a propeller shaft 2.
  • the propeller shaft has an end 2a which is adapted to be connected to a propeller and an opposite end 2b which is adapted to be connected to a driving motor.
  • the tube may comprise several interconnected tube segments 1a-1c, and it also comprises at least one interior bearing 3 with a bearing surface supporting the propeller shaft.
  • the stern tube is connected with the aid of fastening means 5, 6 to fixed parts 4 of the ship, such as the hull, bulkheads or the like.
  • the stern tube comprises at least two fastening means which are spaced apart in the longitudinal direction of the tube, a first fastening means 5 being fixedly connected to a first fixed part 4a of the ship and arranged on a part facing the propeller, and a second fastening means 6 being spaced apart from the first fastening means 5 and connected to a second fixed part 4b of the ship.
  • the first fastening means 5 is a fixed connection between the stern tube and the fixed part of the ship, and may, for instance, be provided with the aid of mechanical fastening means, such as bolt joints 7, curing joining materials 8, such as epoxy, or preferably a combination thereof.
  • mechanical fastening means such as bolt joints 7, curing joining materials 8, such as epoxy, or preferably a combination thereof.
  • Other ways of providing a rigid connection are, however, possible, which is obvious to the one skilled in the art.
  • the second fastening means 6 allows axial displacement of the stern tube relative to the fixed part 4b, but prevents displacement of the stern tube in the radial direction.
  • the second fastening means comprising a holder part 9 which is arranged on the fixed part 4b of the ship and which, with a sliding surface, is arranged about and abuts against the tube lc.
  • the stern tube has an even and smooth outer surface in the area of the abutment of the holder part against the same.
  • the stern tube is allowed to slide relative to the holder part in the longitudinal direction of the tube, while being locked in the other directions.
  • the holder part also comprises, on its surface facing the tube, at least one indentation 10 in the form of a groove and a seal 11 arranged therein.
  • the stern tube in the area of the abutment of the holder part 9 against the same, further has a preferably circular cross-section which is constant in the longitudinal direction of the propeller shaft. Besides a movement in the axial direction of the tube relative to the holder, a turning movement between these parts is also allowed about the longitudinal axis, which further enhances the adjustability and reduces the wear on the bearings.
  • the holder part 9 is attached to the fixed part 4b of the ship by means of, on the one hand, a bolt joint 12 and, on the other hand, a curing material 13, such as an epoxy.
  • this material is arranged between parallel plane surfaces of the holder part and the fixed part, respectively. It is, however, also possible within the scope of the invention to use other ways of providing a fixed connection.
  • the holder part 9 and the fixed part 4b are connected to each other in a similar manner, but in this embodiment the curing material is arranged between surfaces which in cross-section have at least one and preferably two angles, preferably right angles. As a result, the connection will be more stable and firm.
  • the holder part also has a larger abutment surface facing the tube wall as well as two sealing rings 11.
  • the holder part 9 is connected to the fixed part 4b in a way similar to that in the second embodiment.
  • the holder part 9 in this embodiment comprises two parts: a holder frame 9a which is attached to the fixed part of the ship and which has an inner curved surface and a holder part 9b which abuts against the tube and which has an outer surface facing the holder frame and having a corresponding curvature.
  • the holder part 9b is adapted to be able to be arranged in the holder frame 9a, and the curvature is adapted to allow at least some degree of pivoting of the holder part 9a relative to the holder frame 9b but prevent displacement of the same in the longitudinal direction of the tube.
  • the curved surfaces have a spherical curvature.
  • the second fastening means in this embodiment, also allows pivoting of the stern tube relative to the fixed part of the ship.
  • a fixed attachment is provided in the aft position, which results in a completely fixed point and a forward point that is to some extent flexible. Owing to this, the mounting of the stern tube and the propeller shaft therein will be easier and more flexible.
  • the stern tube according to the invention adjusts to the shaft, on the one hand, initially when being mounted and, on the other hand, afterwards during operation. This results in better adjustment of the bearing load and thus enhanced strength of the bearing. Since the stern tube is not radially movable in the front fastening means either, relative to the fixed part of the ship, a satisfactory support is still provided for the propeller shaft.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Sliding-Contact Bearings (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Sealing Devices (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Flexible Shafts (AREA)
  • Window Of Vehicle (AREA)
  • Electrophonic Musical Instruments (AREA)

Claims (8)

  1. Tube d'étambot (1) pour des navires, destiné à enfermer un arbre d'hélice (2), qui s'étend entre une hélice et un moteur d'entraínement, comportant un tube ayant au moins un palier intérieur (3) supportant l'arbre d'hélice (2), des premiers moyens de fixation (5) qui sont reliés de façon fixe à une partie fixe (4a) du navire et disposés sur une partie face à l'hélice, et des seconds moyens de fixation (6) qui sont axialement espacés des premiers moyens de fixation (5) et reliés à une deuxième partie fixe (4b) du navire, caractérisé en ce que les seconds moyens de fixation (6) permettent un déplacement axial du tube d'étambot (1) par rapport à la partie fixe (4b), mais empêchent un déplacement du tube d'étambot (1) dans la direction radiale.
  2. Tube d'étambot selon la revendication 1, dans lequel les seconds moyens de fixation (6) comportent une partie de support (9) qui est disposée sur la partie fixe du navire et qui, avec une surface de glissement, est disposée autour et bute contre le tube (1).
  3. Tube d'étambot selon la revendication 2, dans lequel la partie de support (9) comporte en outre, sur sa surface face au tube, un renfoncement (10) et un joint d'étanchéité (11) disposé dedans.
  4. Tube d'étambot selon la revendication 2 ou 3, dans lequel le tube d'étambot, dans la zone de la butée de la partie de support contre celui-ci, a une section de préférence circulaire qui est constante dans la direction longitudinale de l'arbre d'hélice.
  5. Tube d'étambot selon l'une quelconque des revendications 2 à 4, dans lequel le tube d'étambot, dans la zone de la butée de la partie de support (9) contre celui-ci, a une surface extérieure lisse et régulière.
  6. Tube d'étambot selon l'une quelconque des revendications précédentes, dans lequel les seconds moyens de fixation (6) permettent en outre une rotation du tube d'étambot autour de son axe et par rapport à la partie fixe du navire.
  7. Tube d'étambot selon la revendication 6, dans lequel les seconds moyens de fixation comportent un cadre de support (9a) qui est fixé sur la partie fixe du navire et a une surface courbe interne et une partie de support (9b) qui est disposée sur le tube et a une surface extérieure avec une courbure correspondante, la partie de support (9b) étant prévue pour être disposée dans le cadre de support (9a), et la courbure étant prévue pour permettre au moins un certain degré de rotation de la partie de support par rapport au cadre de support mais empêcher un déplacement de celle-ci dans la direction longitudinale du tube (1).
  8. Tube d'étambot selon la revendication 7, dans lequel les surfaces courbes ont une courbure sphérique.
EP00937420A 1999-05-31 2000-05-04 Tube d'etambot Expired - Lifetime EP1208039B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK00937420T DK1208039T3 (da) 1999-05-31 2000-05-04 Stævnrör

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9902029A SE9902029L (sv) 1999-05-31 1999-05-31 Propelleraxelhylsa
SE9902029 1999-05-31
PCT/SE2000/000867 WO2000073140A1 (fr) 1999-05-31 2000-05-04 Tube d'etambot

Publications (2)

Publication Number Publication Date
EP1208039A1 EP1208039A1 (fr) 2002-05-29
EP1208039B1 true EP1208039B1 (fr) 2004-07-21

Family

ID=20415860

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00937420A Expired - Lifetime EP1208039B1 (fr) 1999-05-31 2000-05-04 Tube d'etambot

Country Status (14)

Country Link
EP (1) EP1208039B1 (fr)
JP (1) JP4618898B2 (fr)
KR (1) KR100475767B1 (fr)
CN (1) CN1112300C (fr)
AT (1) ATE271494T1 (fr)
AU (1) AU5259400A (fr)
DE (1) DE60012336T2 (fr)
DK (1) DK1208039T3 (fr)
HR (1) HRP20010886B1 (fr)
NO (1) NO325108B1 (fr)
PL (1) PL197398B1 (fr)
RU (1) RU2246424C2 (fr)
SE (1) SE9902029L (fr)
WO (1) WO2000073140A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100767787B1 (ko) * 2007-07-04 2007-10-17 지씨테크(주) 스턴튜브 부시 유니트 및 그 설치 방법
KR100920059B1 (ko) 2009-02-18 2009-10-07 선보공업주식회사 스턴튜브 부시유니트 및 그 설치방법
KR100977140B1 (ko) 2010-05-13 2010-08-20 주식회사 와이엠피 선박용 스턴튜브의 밀봉수지 시공장치 및 그 시공방법
CN102009739A (zh) * 2010-11-30 2011-04-13 惠生（南通）重工有限公司 细长尾轴多轴承
CN102795330A (zh) * 2012-08-28 2012-11-28 青岛华澳船舶制造有限公司 艉轴管、船舶及艉轴管装配方法
CN107310708A (zh) * 2017-06-15 2017-11-03 中船黄埔文冲船舶有限公司 一种船舶艉轴管装置
CN107200114A (zh) * 2017-06-15 2017-09-26 中船黄埔文冲船舶有限公司 一种船舶艉轴管装置
CN107380392A (zh) * 2017-07-21 2017-11-24 苏州飞驰环保科技股份有限公司 一种船舶停靠后艉轴的锁定装置
CN112158313A (zh) * 2020-09-22 2021-01-01 广州文冲船厂有限责任公司 一种尾轴管调节工装及使用方法
CN114670989B (zh) * 2022-04-29 2024-04-12 中船澄西扬州船舶有限公司 一种船舶艉管的安装方法
KR102860833B1 (ko) * 2023-05-09 2025-09-17 지씨테크(주) 스턴 튜브 유닛 및 선체의 결합 구조체
CN119142472A (zh) * 2024-08-16 2024-12-17 上海外高桥造船有限公司 船艉轴安装方法及船舶

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5313187Y2 (fr) * 1972-09-25 1978-04-10
JPS56143199U (fr) * 1980-03-28 1981-10-28
US5310372A (en) * 1992-03-19 1994-05-10 The Evolution Company Inc. Through hull assemblies for marine drives

Also Published As

Publication number Publication date
CN1353655A (zh) 2002-06-12
WO2000073140A1 (fr) 2000-12-07
RU2246424C2 (ru) 2005-02-20
SE512512C2 (sv) 2000-03-27
ATE271494T1 (de) 2004-08-15
NO325108B1 (no) 2008-02-04
SE9902029D0 (sv) 1999-05-31
JP4618898B2 (ja) 2011-01-26
HRP20010886B1 (en) 2006-12-31
KR20020009625A (ko) 2002-02-01
NO20015835L (no) 2001-11-29
DE60012336T2 (de) 2005-08-04
PL197398B1 (pl) 2008-03-31
CN1112300C (zh) 2003-06-25
NO20015835D0 (no) 2001-11-29
DK1208039T3 (da) 2004-11-01
EP1208039A1 (fr) 2002-05-29
SE9902029L (sv) 2000-03-27
KR100475767B1 (ko) 2005-05-09
DE60012336D1 (de) 2004-08-26
PL351882A1 (en) 2003-06-30
AU5259400A (en) 2000-12-18
HRP20010886A2 (en) 2003-04-30
JP2003500294A (ja) 2003-01-07

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