EP0100792B1 - Hydraulische Vorrichtung zum Abziehen oder Einsetzen von Schiffslagerhülsen - Google Patents

Hydraulische Vorrichtung zum Abziehen oder Einsetzen von Schiffslagerhülsen Download PDF

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Publication number
EP0100792B1
EP0100792B1 EP82111383A EP82111383A EP0100792B1 EP 0100792 B1 EP0100792 B1 EP 0100792B1 EP 82111383 A EP82111383 A EP 82111383A EP 82111383 A EP82111383 A EP 82111383A EP 0100792 B1 EP0100792 B1 EP 0100792B1
Authority
EP
European Patent Office
Prior art keywords
bushings
hydraulic
shaft
cylinders
marine
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
Application number
EP82111383A
Other languages
English (en)
French (fr)
Other versions
EP0100792A2 (de
EP0100792A3 (en
Inventor
Michele Cacciabue
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.)
Caravel Sas Di Maniaci Maria Rita & C
Original Assignee
Caravel Sas Di Maniaci Maria Rita & C
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 Caravel Sas Di Maniaci Maria Rita & C filed Critical Caravel Sas Di Maniaci Maria Rita & C
Priority to AT82111383T priority Critical patent/ATE32989T1/de
Publication of EP0100792A2 publication Critical patent/EP0100792A2/de
Publication of EP0100792A3 publication Critical patent/EP0100792A3/en
Application granted granted Critical
Publication of EP0100792B1 publication Critical patent/EP0100792B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/064—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races fluid driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/0028—Tools for removing or installing seals

Definitions

  • the present invention relates to a hydraulic device by which it is possible to remove and insert marine bushings without need of demounting other components of the transmission on screw propelled boats.
  • US-A-3,638,294 discloses a wheel puller based on a cylinder containing at least two telescoping pistons, wherein the cylinder has a peripheral flange, a U-shaped collar slips over the cylinder and engages the flange, a second U-shaped collar slips over a shaft and engages a wheel to be pulled, and the rods connect the two collars and a piston rod connected to one of the pistons engages the shaft end, but this apparatus is designed for removing propellers and cannot deal with the difficulties arising in removing the propeller shaft bushing, consists of a number of mechanical members subject to wear and rust, is difficult to be regulated and handled by one operator and has no means for returning the apparatus to the starting position.
  • a hydraulic device for removing and inserting marine bushings which is characterized by the fact of comprising two self-centering forks, the one being fixed to the two hydraulic cylinders, the other being slidable together with the moving piston rods of the hydraulic cylinders for a simplified positioning of the device on the driving shaft of the boat, as well as two lateral air cylinders arranged parallel to and outwardly of to the hydraulic cylinders, for providing the thrust to return the device to the inoperative position.
  • the device preferably also comprises a set of gauge blocks to match the forks to the diameter of the propeller shaft and of the bushing to be extracted or inserted, as well as a set of pushing half sleeves to be positioned on the propeller shaft and having a size calibrated to the diameter of the bushings and of their seat in the shaft support.
  • the device being the subject matter of the present invention may also be used for underwater bushing replacement, thus without being compelled to raise the boat in the dry dock.
  • the device may be employed by the divers without the aid of other components and obtaining the very same operative and technical advantage.
  • Figs. 10, 11, 12 and 13 show the logical sequence of operations for inserting a bushing.
  • the device 1 of the present invention comprises two self-centering forks 2 and 3 for positioning the device on the propeller shaft of the boat; fork 2 is fixed to the rods 4 of two hydraulic cylinders 5 while fork 3 is fixedly secured to flanges 6 of said cylinders 5.
  • two air cylinders 7 are arranged on either side and are fixed to cylinders 5 and to the sliding fork 2.
  • the force required for extraction and insertion of the bushings is obtained through a manual hydraulic pump 8 actuating said device by the pressure obtained by acting on the control lever 9.
  • gauge blocks 12 and 13 It is also necessary to use the gauge blocks 12 and 13 to carry out the operative matching between the forks of the device and the diameter of the propeller shaft of the boat on which the bushings are to be replaced.
  • the device of the present invention After having removed the screw propeller 14 from the shaft 15, the device of the present invention is positioned astride the support 16 with the sliding fork 2 on the side of the screw connection.
  • the device of the present invention After having slipped a fresh bushing 22 on the shaft 15, the device of the present invention is so positioned that the sliding fork 2 is between said bushing 22 and the support 16.
  • the gauge block On the fixed fork 2 the gauge block is positioned, then pressure is delivered to the cylinders 5, the device abuts on the support 16 and the sliding fork 3 pushes axially the bushing 22 until it is completely inserted into its seat.
  • the device of the present invention attains the above mentioned objects and solves in an optimal and practical way the problems relating to the replacement of bushings for driving shafts of screw propellers for boats, and it has to be pointed out that the foregoing detailed description of a preferred embodiment does not limit the scope of the invention, but on the contrary it has to be understood that many modifications, variations, additions or substitutions of elements may be resorted to the parts and structures of the device, without departing from its scope of protection, as it is defined in the appended claims.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Clamps And Clips (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Automatic Assembly (AREA)
  • Support Of The Bearing (AREA)
  • Filtration Of Liquid (AREA)

Claims (3)

1. Hydraulische Vorrichtung zum Abziehen und Einsetzen von Schiffslagerhülsen mit zwei parallelen, hydraulischen Zylindern (5), die
- beiderseits der Schraubenantriebswelle (15) angeordnet sind und
- eine axiale Triebkraft ausüben, um entweder die Lagerhülsen (22) aus ihrem Lagersitz in einer Schraubenwellenlagerung (16) herauszuziehen oder in dem Lagersitz einzusetzen,
gekennzeichnet durch
- zwei selbstzentrierende Gabeln (2, 3),
- deren eine (3) mit den beiden hydraulischen Zylindern (5) verbunden ist und
- deren andere (2) zusammen mit den sich bewegenden Kolbenstangen (4) der hydraulischen Zylinder (5) verschiebbar ist, um eine vereinfachte Positionierung der Vorrichtung (1) auf der Antriebswelle (15) des Bootes zu erzielen, sowie
- zwei seitliche, pneumatische Zylinder (7), die parallel und außerhalb der hydraulischen Zylinder (5) angeordnet sind, um eine Triebkraft zur Rückführung der Vorrichtung in die Ruhe-Stellung zu erzeugen.
2. Hydraulische Vorrichtung nach Anspruch 1,
gekennzeichnet durch
zwei Kalibrierblöcke (12, 13) zur Anpassung der Gabeln (2, 3) an den Durchmesser der Schraubenwelle (15) und der herauszuziehenden bzw. einzusetzenden Lagerhülsen (22).
3. Hydraulische Vorrichtung nach Anspruch 1,
gekennzeichnet durch
einen Satz von halbzylindrischen Schiebehülsen (10, 11), die
- auf der Schraubenwelle (15) angeordnet sind und
- eine Größe aufweisen, die zum Durchmesser der Lagerhülsen (22) und ihres Lagersitzes in der Wellenlagerung (16) kalibriert ist.
EP82111383A 1982-08-10 1982-12-08 Hydraulische Vorrichtung zum Abziehen oder Einsetzen von Schiffslagerhülsen Expired EP0100792B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82111383T ATE32989T1 (de) 1982-08-10 1982-12-08 Hydraulische vorrichtung zum abziehen oder einsetzen von schiffslagerhuelsen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT22793/82A IT1152354B (it) 1982-08-10 1982-08-10 Attrezzo idraulico per la estrazione e la introduzione di boccole marine
IT2279382 1982-08-10

Publications (3)

Publication Number Publication Date
EP0100792A2 EP0100792A2 (de) 1984-02-22
EP0100792A3 EP0100792A3 (en) 1985-05-29
EP0100792B1 true EP0100792B1 (de) 1988-03-16

Family

ID=11200498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111383A Expired EP0100792B1 (de) 1982-08-10 1982-12-08 Hydraulische Vorrichtung zum Abziehen oder Einsetzen von Schiffslagerhülsen

Country Status (4)

Country Link
EP (1) EP0100792B1 (de)
AT (1) ATE32989T1 (de)
DE (1) DE3278235D1 (de)
IT (1) IT1152354B (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159743A (en) * 1989-05-08 1992-11-03 Posi Lock Puller, Inc. Hydraulic puller
US4953276A (en) * 1989-07-21 1990-09-04 Keystone International Holdings Corp. Apparatus for inserting valve seats in valve bodies
DE10116317A1 (de) * 2001-04-02 2002-11-07 Dts Pro Sys Gmbh Vorrichtung zum Einpressen einer Dichtungsmanschette
EP1616668A1 (de) * 2004-07-15 2006-01-18 BAE Systems Ltd Vorrichtung zur Montage und Demontage eines Ventils
US10131044B2 (en) * 2010-07-30 2018-11-20 Motion Pro, Inc. Fork seal driver tool
CN102672667A (zh) * 2012-05-04 2012-09-19 北京航天动力研究所 一种链板液压拉马
FR2993022B1 (fr) * 2012-07-03 2015-02-20 Aircelle Sa Outil de frettage de pieces mecaniques et procede de frettage utilisant un tel outil
CN103244504B (zh) * 2013-04-27 2016-12-07 中联重科股份有限公司 压装油缸和压装设备
CN111673677A (zh) * 2020-07-07 2020-09-18 湖北清江水电开发有限责任公司 一种水轮发电机组紧密衬套拆卸装置及其拆卸方法
CN111761545B (zh) * 2020-07-28 2025-03-25 中储粮镇江粮油有限公司 一种液压拉马
CN114823006B (zh) * 2022-03-02 2024-03-22 海洋石油工程股份有限公司 一种用于脐带缆密封装置回收工具

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1591894A (en) * 1925-07-22 1926-07-06 Daniel H Taylor Device for positioning packing in stuffing boxes and the like
US2669773A (en) * 1951-04-16 1954-02-23 Tuboscope Company Means for transferring collars
US3432172A (en) * 1966-11-25 1969-03-11 Allen L Hendrickson Method and apparatus for installing new packing on a propeller shaft
US3638294A (en) * 1970-01-20 1972-02-01 Walter F Durant Wheel puller

Also Published As

Publication number Publication date
ATE32989T1 (de) 1988-04-15
IT8222793A0 (it) 1982-08-10
IT1152354B (it) 1986-12-31
EP0100792A2 (de) 1984-02-22
EP0100792A3 (en) 1985-05-29
DE3278235D1 (en) 1988-04-21

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