EP1343686A1 - A hydraulic revolving actuator - Google Patents

A hydraulic revolving actuator

Info

Publication number
EP1343686A1
EP1343686A1 EP01998480A EP01998480A EP1343686A1 EP 1343686 A1 EP1343686 A1 EP 1343686A1 EP 01998480 A EP01998480 A EP 01998480A EP 01998480 A EP01998480 A EP 01998480A EP 1343686 A1 EP1343686 A1 EP 1343686A1
Authority
EP
European Patent Office
Prior art keywords
shaft
bowl rotor
hydraulic
housing
rotor
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
Application number
EP01998480A
Other languages
German (de)
French (fr)
Other versions
EP1343686B1 (en
Inventor
Stig E. Fagervoll
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.)
Kongsberg Maritime AS
Original Assignee
Rolls Royce Marine AS
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 Rolls Royce Marine AS filed Critical Rolls Royce Marine AS
Publication of EP1343686A1 publication Critical patent/EP1343686A1/en
Application granted granted Critical
Publication of EP1343686B1 publication Critical patent/EP1343686B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/08—Steering gear
    • B63H25/14—Steering gear power assisted; power driven, i.e. using steering engine
    • B63H25/26—Steering engines
    • B63H25/28—Steering engines of fluid type
    • B63H25/30—Steering engines of fluid type hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/12—Characterised by the construction of the motor unit of the oscillating-vane or curved-cylinder type

Definitions

  • the present invention is related to a hydraulic revolving actuator.
  • a revolving actuator of the above type is known from for example NO 164 648 and has a relatively complicated design and comprising a number of individual parts. Furthermore the structure is relatively large and heavy. Reversible actuators of the above mentioned type may amongst others be used as rudder machines for activating of the rudder shaft on a ship.
  • figure 1 a perspective view of the revolving actuator according to the invention
  • figure 2 discloses a horizontal section of the revolving actuator
  • figure 3 discloses a section III-III in figure 2.
  • the revolving actuator comprises an upper housing half 1 and a lower housing half 2 being adapted for bolting and clamping together in relation to the individual part which is to be revolved.
  • the revolving actuator according to the invention is for example used as a rudder machine for activating a rudder shaft where the housing halves 1 and 2 are secured to the deck of a ship or such. This securement simultaneously may provide the upper bearing for the shaft which is not disclosed in the figure, but extends through the drawing in figure 3.
  • a bowl rotor 3 In the house with the house halves 1, 2 is arranged a bowl rotor 3 establishing the upper spheric bearing for the shaft as well as securement for the same. In the house likewise seals are arranged, abutting the inner walls of the two housing halves 1, 2 as well as the bowl rotor 3.
  • the bowl rotor 3 comprises recesses 4 around the equator, which together with the inner walls of the housing 1, 2 create an inner torus on each side of partition walls 5, of which several may exist, such as in figure 2. Hydraulic lines respectively passages
  • 0 provide pressure to the piston room 6 respectively 7 and the opposite piston room are correspondingly amended in such a way that a pressure difference occurs between the rooms 6 and 7.
  • the bowl rotor 3 is rotated, thereby also to rotate a shaft connected with a rotor, such as a rudder stem on board a ship and thereby also the rudder.
  • the piston rooms 6 and 7 are limited by the partition walls 5 and the cylindric connection 9, the upper 1 and lower 2 housing halves and the two cylinder limitations 8 which are rigidly connected with the housing halves and being arranged in the recesses 4. It is of substantial importance that these parts are sealed against each other.
  • the revolving actuator according to the present invention comprises only few individual parts and the actuators as such are very compact.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Actuator (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Sliding-Contact Bearings (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Massaging Devices (AREA)
  • Catching Or Destruction (AREA)
  • Joints Allowing Movement (AREA)
  • Vehicle Body Suspensions (AREA)
  • Power Steering Mechanism (AREA)
  • Pens And Brushes (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

Revolving actuator for hydraulic revolving a shaft, comprising a bowl rotor (3) arranged axially rotatable in a housing comprising two housing halves (1, 2), where the bowl rotor (3) is adapted to be connected with a shaft and thereby providing an upper spheric bearing for the shaft, passages thereby providing the housing halves (1, 2) with pressurized hydraulic fluid, the inner walls of the two housing parts (1, 2) thereby having a spheric shape and being sealingly abutting against the bowl rotor (3), the bowl rotor (3) comprising a circumferential recess (4) at the equator, the bowl rotor (3) having at least one partition wall (5) closing the recess (4), a cylinder limitation (8) being arranged in each recess (4) and being rigidly connected with the housing halves (1, 2), and hydraulic connections to the cylinder rooms (6, 7) established in the recesses (4) thereby ensuring supply of hydraulic pressure in the cylinder rooms (6, 7) at each side of each partition wall (5).

Description

A Hydraulic Revolving Actuator
The present invention is related to a hydraulic revolving actuator.
A revolving actuator of the above type is known from for example NO 164 648 and has a relatively complicated design and comprising a number of individual parts. Furthermore the structure is relatively large and heavy. Reversible actuators of the above mentioned type may amongst others be used as rudder machines for activating of the rudder shaft on a ship.
Demands for machines of the above type are especially simplicity and accurate adjustability as well as exact and direct transmission of the steering impulses to physical revolving of the shaft. Additionally revolving actuators are preferred having small dimensions in relation to the actual forces in such reversible actuators. It therefore is an object for the present invention to provide a reversible actuator satisfying the above mentioned demands and having a small size and low weight and additionally the reversible actuator should comprise only a few individual parts. This will have large advantages during manufacturing as well as installation and the later utilization. With the hydraulic revolving actuator according to the present invention, a very simple structure is provided, having very small outer dimensions. This is achieved with the revolving actuator according to the present invention as defined by the features stated in the claim.
The drawing discloses in figure 1 a perspective view of the revolving actuator according to the invention, figure 2 discloses a horizontal section of the revolving actuator and figure 3 discloses a section III-III in figure 2.
The revolving actuator comprises an upper housing half 1 and a lower housing half 2 being adapted for bolting and clamping together in relation to the individual part which is to be revolved. The revolving actuator according to the invention is for example used as a rudder machine for activating a rudder shaft where the housing halves 1 and 2 are secured to the deck of a ship or such. This securement simultaneously may provide the upper bearing for the shaft which is not disclosed in the figure, but extends through the drawing in figure 3.
In the house with the house halves 1, 2 is arranged a bowl rotor 3 establishing the upper spheric bearing for the shaft as well as securement for the same. In the house likewise seals are arranged, abutting the inner walls of the two housing halves 1, 2 as well as the bowl rotor 3.
The bowl rotor 3 comprises recesses 4 around the equator, which together with the inner walls of the housing 1, 2 create an inner torus on each side of partition walls 5, of which several may exist, such as in figure 2. Hydraulic lines respectively passages |0 provide pressure to the piston room 6 respectively 7 and the opposite piston room are correspondingly amended in such a way that a pressure difference occurs between the rooms 6 and 7. Hereby the bowl rotor 3 is rotated, thereby also to rotate a shaft connected with a rotor, such as a rudder stem on board a ship and thereby also the rudder.
The piston rooms 6 and 7 are limited by the partition walls 5 and the cylindric connection 9, the upper 1 and lower 2 housing halves and the two cylinder limitations 8 which are rigidly connected with the housing halves and being arranged in the recesses 4. It is of substantial importance that these parts are sealed against each other. The revolving actuator according to the present invention comprises only few individual parts and the actuators as such are very compact.

Claims

P a t e n t C l a i m
1. Revolving actuator for hydraulic revolving a shaft, comprising a bowl rotor (3) arranged axially rotatable in a housing comprising two housing halves (1, 2), where the bowl rotor (3) is adapted to be connected with a shaft and thereby providing an upper spheric bearing for the shaft, passages thereby providing the housing halves (1, 2) with pressurized hydraulic fluid, characterized in the inner walls of the two housing parts (1, 2) having a spheric shape and being sealingly abutting against the bowl rotor (3), the bowl rotor (3) comprising a circumferential recess (4) at the equator, the bowl rotor (3) having at least one partition wall (5) closing the recess (4), a cylinder limitation (8) being arranged in each recess (4) and being rigidly connected with the housing halves (1, 2), and hydraulic connections to the cylinder rooms (6, 7) established in the recesses (4) thereby ensuring supply of hydraulic pressure in the cylinder rooms (6, 7) at each side of each partition wall (5).
EP01998480A 2000-11-28 2001-11-27 A hydraulic revolving actuator Expired - Lifetime EP1343686B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20006024A NO316599B1 (en) 2000-11-28 2000-11-28 Free actuator
NO20006024 2000-11-28
PCT/NO2001/000468 WO2002044022A1 (en) 2000-11-28 2001-11-27 A hydraulic revolving actuator

Publications (2)

Publication Number Publication Date
EP1343686A1 true EP1343686A1 (en) 2003-09-17
EP1343686B1 EP1343686B1 (en) 2006-04-19

Family

ID=19911851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01998480A Expired - Lifetime EP1343686B1 (en) 2000-11-28 2001-11-27 A hydraulic revolving actuator

Country Status (11)

Country Link
EP (1) EP1343686B1 (en)
JP (1) JP3881309B2 (en)
KR (1) KR100857932B1 (en)
CN (1) CN1208556C (en)
AT (1) ATE323642T1 (en)
AU (1) AU2002223161A1 (en)
DE (1) DE60118962T2 (en)
DK (1) DK1343686T3 (en)
ES (1) ES2261525T3 (en)
NO (1) NO316599B1 (en)
WO (1) WO2002044022A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101823205B (en) * 2010-05-05 2012-06-13 广东中远船务工程有限公司 Hydraulic mounting support of tight-holding type rotary-vane steering gear
CN102556321B (en) * 2011-12-16 2014-06-04 华中科技大学 Floating type spherical rotating vane steering engine
JP2017506314A (en) * 2014-01-31 2017-03-02 ウッドワード，インコーポレーテッドＷｏｏｄｗａｒｄ，Ｉｎｃ． Rotary piston actuator with modular housing
CN107120332A (en) * 2017-06-23 2017-09-01 武汉科技大学 A kind of oscillating oil cylinder of combined-stator
CN107165883A (en) * 2017-06-27 2017-09-15 武汉科技大学 A kind of spherical swing hydraulic pressure oil cylinder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045958A (en) * 1976-03-25 1977-09-06 Thomas H. Hudson Multi-directional positioner
NO164648C (en) * 1988-06-10 1990-10-31 Tenfjord As HYDRAULIC FINGE ACTUATOR.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0244022A1 *

Also Published As

Publication number Publication date
KR20030067691A (en) 2003-08-14
DE60118962D1 (en) 2006-05-24
JP2004514853A (en) 2004-05-20
ES2261525T3 (en) 2006-11-16
DK1343686T3 (en) 2006-06-06
NO20006024L (en) 2002-05-29
EP1343686B1 (en) 2006-04-19
ATE323642T1 (en) 2006-05-15
KR100857932B1 (en) 2008-09-09
AU2002223161A1 (en) 2002-06-11
CN1208556C (en) 2005-06-29
DE60118962T2 (en) 2006-11-16
CN1478032A (en) 2004-02-25
JP3881309B2 (en) 2007-02-14
NO20006024D0 (en) 2000-11-28
WO2002044022A1 (en) 2002-06-06
NO316599B1 (en) 2004-03-01

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