EP3409575B1 - Ruderblatt mit einer ruderblattnabe und ruderblattnabe für ein ruderblatt - Google Patents

Ruderblatt mit einer ruderblattnabe und ruderblattnabe für ein ruderblatt Download PDF

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Publication number
EP3409575B1
EP3409575B1 EP17173460.1A EP17173460A EP3409575B1 EP 3409575 B1 EP3409575 B1 EP 3409575B1 EP 17173460 A EP17173460 A EP 17173460A EP 3409575 B1 EP3409575 B1 EP 3409575B1
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EP
European Patent Office
Prior art keywords
rudder blade
hub
connecting means
wall
rudder
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.)
Active
Application number
EP17173460.1A
Other languages
German (de)
English (en)
French (fr)
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EP3409575A1 (de
Inventor
Dirk Lehmann
Herbert Blümel
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.)
Becker Marine Systems GmbH and Co KG
Original Assignee
Becker Marine Systems GmbH and Co KG
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
Priority to EP17173460.1A priority Critical patent/EP3409575B1/de
Application filed by Becker Marine Systems GmbH and Co KG filed Critical Becker Marine Systems GmbH and Co KG
Priority to HRP20221052TT priority patent/HRP20221052T1/hr
Priority to DK17173460.1T priority patent/DK3409575T3/da
Priority to PT171734601T priority patent/PT3409575T/pt
Priority to ES17173460T priority patent/ES2925695T3/es
Priority to PL17173460.1T priority patent/PL3409575T3/pl
Priority to CN201710908962.0A priority patent/CN108974312B/zh
Priority to SG10201804501YA priority patent/SG10201804501YA/en
Priority to CA3006531A priority patent/CA3006531C/en
Priority to TW107118326A priority patent/TWI761522B/zh
Priority to US15/991,606 priority patent/US10464654B2/en
Priority to KR1020180062201A priority patent/KR102524329B1/ko
Priority to JP2018103017A priority patent/JP7437869B2/ja
Publication of EP3409575A1 publication Critical patent/EP3409575A1/de
Application granted granted Critical
Publication of EP3409575B1 publication Critical patent/EP3409575B1/de
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    • 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
    • B63H25/38—Rudders

Definitions

  • the present invention relates to a rudder blade, in particular for a half-slider rudder or a full-slider rudder for watercraft, in particular ships, comprising a leading edge, a trailing edge, a first side wall and a second side wall opposite the first side wall and a rudder blade hub arranged in a connection space for connecting a rudder stock, the rudder blade hub having a hub body, the hub body having an internal bore for receiving a rudder post and a circumferentially extending hub outer surface. Furthermore, the present invention relates to a rudder blade hub for a rudder blade.
  • a rudder for a watercraft comprises a rudder blade which is rotatably mounted on the hull by means of a rudder stock.
  • a rudder blade hub is provided in the rudder blade to connect the rudder stock to the rudder blade.
  • Rudder blades in particular for half-leaf rudders or full-leaf rudders for watercraft, especially for large ships such as container ships or oil tankers, can have a total weight of well over 100 tons, with the rudder blade hub accounting for up to 20% of this total weight.
  • the rudder blade hub is arranged in a connection space provided inside the rudder blade.
  • the connection space can be delimited in the vertical direction and in the directions of the leading edge and the trailing edge by horizontal or vertical frames of a skeleton structure that lends strength to the rudder blade. In the direction of the outside of the rudder blade, the connection space is usually delimited by a partial area of the respective adjoining side wall of the rudder blade.
  • Rudder blade hubs known from the prior art are dimensioned in such a way that the outer surface of the hub rests against the insides of the side walls of the rudder blade. As a result, forces acting on the side walls are diverted directly to the rudder blade hub and the rudder stock. Due to the large profile thicknesses of rudders for large ships, however, the known rudder blade hubs are oversized with regard to the connection and storage of the rudder stock. Known rudder blade hubs are therefore very heavy, material-intensive and cost-intensive components.
  • so-called welding windows are often provided in known rudder blades, which are arranged in the area of the rudder blade hub in the side walls of the rudder blade.
  • the outer surface of the rudder blade hub extends partially through the welding window and then has to be laboriously welded to the side walls of the rudder blade.
  • the rudder blade hub then forms with its hub outer surface a part of the rudder blade outer wall of the rudder blade.
  • the EP 2 060 486 A1 discloses a rudder for ships comprising a twisted full floating rudder blade with a slim profile and a small profile thickness and with a propeller facing the rudder blade and a trunk tube arranged in the upper area of the rudder blade with a rudder stock arranged in this.
  • the present invention is based on the object of providing a rudder blade with a rudder blade hub, which has a lower overall weight compared to rudder blades known from the prior art and can be produced with reduced material and cost expenditure, while at the same time ensuring a sufficiently high strength to withstand the large To absorb the forces and moments acting during operation of the rudder blade and to derive them from a rudder stock. Furthermore, the present invention is based on the object of providing a rudder blade hub for a rudder blade, which is lighter than known rudder blade hubs and can be produced with less material and cost.
  • a rudder blade is proposed, in particular for a half-slider rudder or a full-slider rudder, for watercraft, in particular ships, comprising a leading edge, a trailing edge, a first side wall and a second side wall opposite the first side wall and a rudder blade hub arranged in a connection space for Connection of a rudder stock, the rudder blade hub having a hub body, the hub body having an inner bore for receiving a rudder stock and a hub outer surface running in the circumferential direction, the connection space being provided in the interior of the rudder blade, the hub outer surface also being completely spaced from an inner side of the first side wall and disposed from an inside of the second side wall.
  • the leading edge of the rudder blade faces the bow or, if a propeller is present, the propeller of the ship.
  • the trailing edge of the rudder blade is located opposite the leading edge and facing away from the bow or the propeller.
  • a first side wall and a second side wall opposite the first side wall, which form the outer wall of the rudder blade, extend between the trailing edge and the leading edge.
  • the rudder blade is essentially symmetrical with respect to a median plane, which runs vertically when the rudder blade is arranged on the ship and is defined approximately by the set of skeleton lines of the individual profile sections of the rudder blade.
  • Slight deviations from the symmetry of the rudder blade with respect to the center plane may exist if, for example, the leading edge and/or the trailing edge of the rudder blade is twisted or twisted, i.e. if the leading edge or the trailing edge is prestressed with respect to the propeller outflow for cavitation prevention and energy recovery.
  • the leading edge or trailing edge may be twisted or biased to starboard in an upper rudder blade section and to port or vice versa in a lower rudder blade section.
  • a connection space is provided inside the rudder blade, which is preferably delimited by the side walls or partial areas of the side walls of the rudder blade. In the vertical direction, the connection space is preferably above and below by horizontal frames of a skeleton structure of the rudder blade limited.
  • a rudder blade hub for connecting a rudder stock is arranged in the connection space.
  • a rudder stock can be inserted into the inner bore of the hub body of the rudder blade hub.
  • a fastening means such as a hydraulic screw can be provided for fastening the rudder stock to the rudder blade hub and thus to the rudder blade.
  • the hub outer surface is circumferentially spaced from an inner side of the first side wall and from an inner side of the second side wall.
  • the rudder blade hub is arranged inside the connection space in such a way that the outer surface of the hub at every point on the circumference of the Hub body is arranged spaced from the inside of the first side wall and from the inside of the second side wall.
  • the rudder blade hub of the rudder blade according to the invention is dimensioned significantly smaller. This has the advantage that less material has to be used for the rudder blade hub, with the result that the overall weight of the rudder blade is reduced and that the manufacturing costs are reduced.
  • up to 10% or more of the total weight of the rudder blade can be saved by arranging the rudder blade hub with the outer surface of the hub at a distance from the side walls.
  • the outer surface of the hub is arranged at a distance from the inner side of the first side wall and from the inner side of the second side wall over the entire axial height of the rudder blade hub, and/or that the outer surface of the hub has no physical contact with the inner side of the first side wall and the inner side of the having second side wall.
  • the axial height of the rudder blade hub is measured along the longitudinal axis of the rudder blade hub, with the longitudinal axis of the rudder blade hub running in the direction of a rudder stock to be arranged in the rudder blade hub. If the hub outer surface is arranged at a distance from the inside of the first side wall and the inside of the second side wall over the entire axial height of the rudder blade hub, material can be saved not only in the circumferential direction of the hub body, but also over the axial height of the rudder blade hub running perpendicular to the circumferential direction.
  • the rudder blade hub in particular the hub body, is connected, in particular welded, to frames of the rudder blade with end faces arranged at the ends viewed in the direction of the longitudinal axis of the rudder blade hub, a first or lower and a second or upper end face.
  • the hub body has an outer diameter, that the connection space has a first outer wall, the first outer wall being a partial area of the first side wall, that the connection space has a second outer wall, the second outer wall being a partial area of the second side wall that the connection space has an inner distance between an inner side of the first outer wall and an inner side of the second outer wall, wherein the outer diameter of the hub body is smaller than the inner distance.
  • connection space of the rudder blade is preferably a partial volume of the rudder blade.
  • the connection space is delimited in the vertical direction by partial areas of horizontal frames of the rudder blade, with the horizontal frames lying in the planes of the profile sections.
  • the connection space is limited by partial areas of the first side wall and the second side wall, which form the outer walls of the terminal compartment.
  • further frames or partial areas of frames running vertically in the rudder blade can delimit the connection space to the front in the direction of the leading edge or to the rear in the direction of the trailing edge.
  • the connection space is approximately cuboid and is preferably located approximately in the center of the rudder blade.
  • connection space Due to the profile-related slight curvature of the side walls or the outer walls of the connection space, there may be slight deviations in the connection space from the cuboid shape.
  • connection space can also be designed in a manner other than cuboid.
  • connection space is also preferably located in the area of the greatest profile thickness of the rudder blade and has a width which is defined by the inner distance between the inside of the first outer wall and the inside of the second outer wall. If the rudder blade hub is advantageously designed with an outer diameter that is smaller than this inner distance, the rudder blade hub can be arranged inside the connection space in such a way that it has no physical contact with the first outer wall and/or the second outer wall.
  • the rudder blade hub consequently has smaller dimensions than rudder blade hubs for rudder blades known from the prior art. This measure further reduces the cost of materials and the production costs of the rudder blade.
  • the rudder blade hub to have at least one, preferably several, connecting means, with the at least one connecting means being located between the outer surface of the hub and the inside of the first side wall, in particular the first outer wall, and/or the inside of the second side wall, in particular the second outer wall , extends, wherein the rudder blade hub preferably has at least two connecting means, wherein a first connecting means extends between the outer surface of the hub and the inside of the first side wall, in particular the first outer wall, and wherein a second connecting means extends between the outer surface of the hub and the inside of the second side wall, in particular the second outer wall.
  • the at least one connecting means provides a connection between the rudder blade hub, in particular the hub outer surface of the hub body, and the first Side wall and / or the second side wall or the first outer wall and / or the second outer wall of the terminal compartment ago. Forces and moments acting on the rudder blade or the outer wall of the rudder blade during operation are transferred from the side walls or the outer walls of the connection space to the at least one connecting means, which transmits these forces and loads via the outer surface of the hub to the hub body of the rudder blade hub. As a result, the strength of the rudder blade is increased and sufficient dissipation of the rudder forces and moments on the rudder stock via the rudder blade hub is achieved, with a simultaneous reduction in the material expenditure and production costs.
  • the preferred rudder blade hub can thus be dimensioned and designed to be smaller and lighter without impairing the strength of the rudder blade.
  • the rudder forces and moments are no longer transmitted directly via the outer surface of the hub, which is in physical contact with the side walls, but instead are transmitted via the connecting means from the side walls of the rudder blade to the hub body of the rudder blade hub.
  • the weight of the at least one connecting means is lower than the material savings achieved by reducing the size of the rudder blade hub.
  • a first connecting means can extend between the outer surface of the hub and the inside of the first side wall, in particular the first outer wall
  • a second connecting means can extend between the outer surface of the hub and the inside of the second side wall, in particular the second outer wall.
  • each connecting means preferably extends between the outer surface of the hub and either the inside of the first side wall, in particular the first outer wall, or the inside of the second side wall, in particular the second outer wall.
  • an embodiment of the rudder blade and the rudder blade hub is also conceivable in which the hub body with the outer surface of the hub is in physical contact with the inside of the first side wall, in particular the first outer wall, and/or with the inside of the second side wall, in particular the second outer wall. stands, or in which the outer surface of the hub is not at a distance from the inner sides of the side walls, and the rudder blade hub has at least one connecting means.
  • the at least one connecting means is preferably designed to transmit forces and/or moments acting on the rudder blade, in particular on the side walls of the rudder blade, to the rudder blade hub, in particular to the hub body, in particular during operation and when the rudder blade is in the state on the ship.
  • the hub body can thus be made smaller.
  • the strength of the rudder blade which is reduced due to the material reduction of the hub body and the lack of direct connection of the hub body to the side walls, is compensated for by the arrangement of the at least one connecting means.
  • the at least one connecting means has a first connecting area and a second connecting area, wherein the at least one connecting means is arranged and/or attached to the first connecting area on the outer surface of the hub and wherein the at least one connecting means is connected to the second connecting area on the inside of the first Side wall, in particular the first outer wall, and / or on the inside of the second side wall, in particular the second outer wall, is arranged and / or attached.
  • the connecting means has two connecting areas which are designed for the connection to the hub outer surface and/or the inside of the first side wall, in particular the first outer wall, and/or the inside of the second side wall, in particular the second outer wall.
  • each connecting means preferably has a first connection area and a second connection area.
  • Each connecting means is then arranged and/or fastened with the first connecting region on the outer surface of the hub.
  • the individual connecting means with the second connecting area is then preferably arranged or fastened either on the inside of the first outer wall or on the inside of the second outer wall.
  • a connecting means can be arranged on a first side of the center plane of the rudder blade, which corresponds, for example, to the starboard side when it is arranged on the ship. This connection means is then arranged and/or attached to the second connection area on the inside of the outer wall on the starboard side.
  • a further connecting means can be arranged on the second side of the center plane opposite the first side, ie on the port side when the rudder blade is arranged on the ship. This connection means is then arranged and/or attached to the second connection area on the inside of the outer wall on the port side.
  • the central plane which runs approximately from the leading edge to the trailing edge, divides the rudder blade into two roughly symmetrical areas, with deviations from symmetry occurring, for example, due to a twisted or twisted leading edge or a twisted or twisted trailing edge.
  • the center plane of the rudder blade preferably runs through the longitudinal axis of the rudder blade hub or the hub body, with the longitudinal axis in turn running centrally in the inner bore of the hub body.
  • They are preferably arranged symmetrically on both sides of the center plane. This advantageously results in a uniform absorption and transmission of the forces acting on the rudder blade during operation.
  • the same number of connecting means are arranged on both sides of the center plane, ie when the rudder blade is arranged on the ship, both on the starboard side and on the port side of the rudder blade.
  • This measure also leads to an increase in strength and to an improvement in the absorption and transmission of rudder forces and moments occurring during operation to the rudder blade hub and to a rudder stock.
  • the at least two connecting means are arranged asymmetrically to a central plane of the rudder blade.
  • An asymmetrical arrangement is particularly advantageous in the case of a twisted rudder blade.
  • the connecting means which are arranged on one side of the central plane, are particularly preferably arranged completely on this side, ie the connecting means are not arranged with any of their partial areas on both sides of the central plane at the same time.
  • the at least one connecting means extends over at least 60%, preferably at least 70%, more preferably at least 80%, particularly preferably at least 90%, very particularly preferably over 100%, of the axial height of the rudder blade hub and preferably over at least 60 %, preferably at least 70%, more preferably at least 80%, particularly preferably at least 90%, very particularly preferably over 100%, of the axial height is arranged and/or attached to the outer surface of the hub.
  • the at least one connecting means extends over at least 60%, preferably at least 70%, more preferably at least 80%, particularly preferably at least 90%, very particularly preferably over 100%, of the axial height of the rudder blade hub on the inside of the first side wall, in particular the first outer wall, and/or is arranged and/or fastened on the inside of the second side wall, in particular the second outer wall.
  • the axial height of the rudder hub is measured in the direction of the longitudinal axis of the rudder hub, the longitudinal axis of the rudder hub running through a central axis of the inner bore of the hub body and corresponding to the direction of a rudder stock arranged in the rudder hub.
  • the at least one connecting means advantageously extends over the entire axial height along the rudder blade hub, in particular the hub body, and is preferably arranged and/or fastened over the entire axial height on the outer surface of the hub, then a particularly stable connection of the rudder blade hub is achieved via the outer surface of the hub body to the inside of the first side wall and to the inside of the second side wall.
  • the at least one connecting means is preferably approximately cuboid. This form can be produced with little material expenditure and is particularly cost-efficient.
  • an approximately cuboid configuration of the at least one connecting means in the form of a web, a plate or a strut enables a particularly efficient transmission of the rudder forces and moments occurring during operation to the hub body of the rudder blade hub.
  • the at least one connecting means, in particular the web, the plate or the strut preferably runs in a radial direction outwards from the hub outer surface of the hub body in the direction of the inside of the first side wall, in particular the first outer wall. and/or towards the inside of the second side wall, in particular the second outer wall.
  • a radial arrangement of the at least one connecting means and/or a substantially vertical extension parallel to the longitudinal axis of the rudder blade hub is permitted a particularly simple design of the connecting means in the form of cuboid components and also ensures a very efficient transmission of the rudder forces and moments from the rudder blade outer wall or the side walls to the rudder blade hub.
  • the at least one connecting means in particular the web, the plate or the strut, does not extend in a radial direction outwards from the hub outer surface of the hub body in the direction of the inside of the first side wall, in particular the first outer wall, and/or runs or is arranged in the direction of the inside of the second side wall, in particular the second outer wall.
  • the at least one connecting means in particular the web, the plate or the strut, can also be positioned with respect to a radial line of the hub body, i. H. with respect to a radial direction from the hub outer surface of the hub body towards the inside of the first side wall and/or towards the inside of the second side wall, are at an angle and thus have an angle to the radial.
  • the at least one connecting means can also have an arcuate course or a kink, in particular when viewed in the direction of the longitudinal axis of the rudder blade hub.
  • the at least one connecting means can have the curved course or the kinked course in sections or over its entire vertical extension.
  • the at least one connecting means can also have an arcuate course or a kink in a top view of the rudder blade hub along the longitudinal axis with respect to the radial.
  • connecting means are provided, with the connecting means most preferably being arranged symmetrically or asymmetrically to the center plane of the rudder blade and/or over the circumference of the hub body , preferably arranged distributed evenly.
  • connecting means are provided, the connecting means being arranged symmetrically with respect to the central plane of the rudder blade and/or distributed over the circumference of the hub body.
  • two of the four connecting means are thus arranged on a first side of the median plane, for example on the starboard side, while two further connecting means are arranged on a second side of the median plane, for example on the port side.
  • the two connecting means on the starboard side are arranged symmetrically to the connecting means on the port side with respect to the center plane of the rudder blade.
  • At least two connecting means are provided, with the at least two connecting means being at an angular distance of 0° to 90°, preferably 30° to 80°, more preferably 50° to 70°, particularly preferably 55° to 65°, from the center plane of the rudder blade °, and/or wherein the at least two connecting means are at an angular distance of 0° to 90°, preferably 10° to 60°, more preferably 20° from a transverse plane running perpendicular to the center plane of the rudder blade and through a longitudinal axis of the rudder blade hub to 40°, particularly preferably from 25° to 35°.
  • the transverse plane running perpendicular to the center plane and through the longitudinal axis of the rudder blade hub divides the rudder blade into a front area, which includes the leading edge, and a rear area, which includes the trailing edge.
  • the transverse plane is also perpendicular to the median plane and the profile planes. If the rudder blade hub is arranged in the area of the greatest profile thickness, the transverse plane also contains the plane of the greatest profile thickness.
  • the angular distance of the connecting means can be measured either to the median plane or to the transverse plane. If the angular distance of a connecting means is 90° to the center plane of the rudder blade, then the connecting means lies essentially in the transverse plane. Depending on the design of the rudder blade, ie depending on its profile shape, and the forces and loads to be expected during operation of the rudder blade, it can be advantageous for the connecting means to be at a distance of 50° to 70° from the center plane.
  • the at least one connecting means is welded and/or glued and/or forged to the hub body, in particular the outer surface of the hub, and/or to the side walls of the rudder blade, in particular to the outer walls.
  • the at least one connecting means can be welded and/or glued to the hub body, in particular to the outer surface of the hub, and/or to the outer walls, i.e. the connecting means is welded or glued to the first connecting area with the hub body, in particular to the outer surface of the hub and is welded or glued to the second connection area with the first side wall, in particular the first outer wall, or the second side wall, in particular the second outer wall. Welding the connecting means to the hub body or the outer surface of the hub and/or to the side walls or the outer walls is particularly easy and inexpensive to carry out.
  • the hub body is rotationally symmetrical with respect to a longitudinal axis of the rudder blade hub, the hub body preferably being cylindrical or conical in shape.
  • the wall thickness of the hub body can be constant or increase or decrease in the axial direction along the longitudinal axis.
  • the rudder blade has frames, that the hub body has a lower end face and an upper end face, and that the hub body is fastened, in particular welded, with the lower end face to a first lower frame and/or that the hub body is connected to the upper face attached to a second upper frame, in particular welded.
  • the hub body has an upper end face and a lower end face, the terms “top” and “bottom” referring to the state of the rudder blade arranged in a ship.
  • the rudder blade preferably has an internal skeleton structure which is formed by horizontally and vertically aligned frames.
  • the rudder blade can have two to fifty, preferably four to ten frames.
  • the horizontal frames run from the leading edge to the trailing edge and are stretched between the first side wall and the second side wall and are essentially aligned parallel to the profile planes.
  • a first, lower frame delimits the connection space from below, and a second, upper frame delimits the connection space from above.
  • connection space can be delimited on the sides by the outer wall of the connection space or by the partial areas of the side walls.
  • the connection space can also be delimited to the front or to the rear, viewed in the direction of travel, by a first vertical and a second vertical frame. Due to the delimitation of the connection space by the side walls and the vertical and horizontal frames or the upper frame and the lower frame, the connection space is approximately cuboid in shape.
  • the axial height of the rudder blade hub is then advantageously chosen so that it corresponds to the height of the connection space, so that the rudder blade hub or the hub body rests with the upper face on the underside of the upper frame and with the lower face on the top of the lower frame.
  • the rudder blade hub or the hub body can be connected to the upper frame and to the lower frame, for example by welding.
  • the forces and moments acting on the rudder blade during operation are then not only transferred to the rudder blade hub via the connecting means, but also via the frames, transmitted in particular via the upper frame and the lower frame, to the rudder blade hub and thus also to the rudder stock. This results in a further increased strength of the rudder blade.
  • the at least one connecting means can be designed as an approximately cuboid plate, web or strut and is particularly preferably arranged and/or attached to the hub outer surface of the hub body of the rudder blade hub so that it protrudes in the radial direction. Seen in the vertical direction, ie along the longitudinal axis of the rudder blade hub, each connecting means or each web, plate or strut has a first lower end side and a second upper end side opposite the first end side.
  • the length of the connecting means is preferably equal to the axial height of the rudder blade hub or the hub body, so that the connecting means, in particular the web, the plate or the strut, is connected to the first end side on the lower frame and to the second end side rests against the upper frame.
  • a further increase in the strength of the rudder blade is achieved by fastening or welding the connecting means to the frames on the first end side and/or the second end side.
  • first lower frame and/or the second upper frame has or have an opening, the diameter of the opening being smaller than the outer diameter of the hub body and larger than the inner diameter of the inner bore of the hub body, the opening being surrounded by a flange is bordered, and wherein the rudder blade hub is attached, preferably welded, to the flange, in particular circumferentially.
  • an opening in particular in the second upper frame, allows a rudder stock to enter the connection space and into the connection space from above arranged rudder blade hub or inserted into the inner bore of the hub body of the rudder blade hub.
  • An opening in the lower frame allows the rudder stock to be guided out of the connection space through the rudder blade hub and secured in the rudder blade by means of a fastening element, such as a hydraulic screw.
  • the area of the upper frame or the lower frame that delimits the connection space is then designed in the form of a flange, on which the rudder blade hub can be supported.
  • the flange can also be welded or forged to the side walls or to the vertical frames delimiting the connection space to the front and rear.
  • the lower end face and/or the upper end face of the rudder blade hub or the hub body has a circumferential step or step in the circumferential direction, so that the rudder blade hub with the end faces of the hub body can be inserted into the opening of the upper frame or the lower frame in such a way that the hub body engages in the opening of the lower frame with the step on the lower face and/or in the opening of the upper frame with the step on the upper face.
  • This measure avoids welding stresses.
  • the rudder blade hub can also be attached to the upper and/or lower frame via a welded connection with a transition radius.
  • a projection or flange can be provided which runs around the outer surface of the hub on the outside and which rests with an outer surface on an inner side of the opening of the upper and/or the lower frame and with the upper and/or the lower one Span is welded.
  • the end of the hub body protrudes into the opening of the upper and/or lower frame over a length corresponding approximately to the height of the projection.
  • each individual connecting means can be designed like the at least one connecting means described above.
  • the ratio of the outer diameter of the hub body to the inner diameter of the inner bore is thus advantageously significantly smaller than in the case of rudder blade hubs known from the prior art. Accordingly, a large saving in material and a significant reduction in costs can be achieved.
  • FIG. 1 shows a rudder blade 100 with a leading edge 10, a trailing edge 11, a first side wall 12 and a second side wall 13 opposite the first side wall 12 ( 2 ).
  • Inside the rudder blade 100 there are horizontal ribs 14 and vertical ribs 15 which ensure the dimensional stability of the rudder blade 100 .
  • a connection space 16 with a rudder blade hub 17 arranged therein is provided approximately in the center of the rudder blade 100 .
  • the connection space 16 is delimited upwards in the vertical direction by a partial area of an upper frame 18 and viewed downwards by a partial area of a lower frame 19 in the vertical direction.
  • connection space 16 To the front in the direction of the leading edge 10 the connection space 16 is delimited by a partial area of a front frame 20 and to the rear in the direction of the trailing edge 11 by a partial area of a rear frame 21 . To the outside, the connection space 16 is formed as a first outer wall 22 partial area of the first side wall 12 and by a second outer wall 23 ( 2 ) trained portion of the second side wall 13 is limited.
  • the rudder blade hub 17 is arranged inside the connection space 16.
  • the rudder blade 100 is approximately symmetrical in relation to a central plane 24, with a deviation from the symmetry resulting from the leading edge 10, which is twisted with respect to the central plane 24 and is twisted out of the central plane 24, so to speak.
  • the longitudinal axis 25 of the rudder blade hub 17 runs perpendicularly to the plane of the figure.
  • An imaginary transverse plane 26 which divides the rudder blade 100 into a front area 27 and a rear area 28 , runs perpendicularly to the center plane 24 and through the longitudinal axis 25 of the rudder blade hub 17 .
  • the rudder blade hub 17 is arranged in the area of the greatest profile thickness of the rudder blade 100 .
  • the rudder blade hub 17 has a hub body 29 with an inner bore 30 .
  • the inner bore 30 is for receiving one in the 2 formed rudder stock, not shown.
  • the hub body 29 also has a hub outer surface 31 running in the circumferential direction.
  • the outer surface 31 of the hub is arranged at a distance from the inner side of the first outer wall 22 and the inner side of the second outer wall 23 over the entire circumference.
  • the hub body 29 has an outer diameter 32 which is smaller than the inner distance 33 between the inside of the first outer wall 22 and the inside of the second outer wall 23.
  • connecting means 34 are arranged.
  • the rudder blade hub 17 with hub body 29 and connecting means 34 is in 3 shown enlarged.
  • the connecting means 34 are in the form of plates 35 and are approximately cuboid. Each connecting means 34 is welded to the outer surface 31 of the hub with a first connecting region 36 and to the inside of the first outer wall 22 or to the inside of the second outer wall 23 with a second connecting region 37 .
  • the connecting means 34 thus extend between the outer surface of the hub 31 and the inside of the first outer wall 22 or the inside of the second outer wall 23.
  • the connecting means 34 designed as plates 35 are arranged essentially symmetrically with respect to the central plane 24, so that on both sides of the central plane 24 the the same number of connecting means 34 is arranged.
  • the connecting means 34 serve to transmit or dissipate the forces and moments acting on the side walls 12, 13 during operation of the rudder blade 100 to the hub body 29 of the rudder blade hub 17 and to a rudder stock arranged in the inner bore 30 of the hub body 29, and to provide the rudder blade 100 with a to give sufficient strength.
  • the connecting means 34 are also arranged uniformly over the circumference of the outer surface 31 of the hub, so that an angular distance 38 of 90° is provided between each two adjacently arranged connecting means 34 .
  • connecting means 34 An alternative arrangement of the connecting means 34 is in 4 shown.
  • Two connecting means designed as plates 35 are arranged on both sides of the center plane 24 .
  • the angular distance 38 between two connecting means 34 lying on one side of the central plane 24 is between 50° and 70°.
  • FIG 5 shows a section through the transverse plane 26 of 2 and the 3 . Due to the cutting plane, in figure 5 the connecting means 34 are not shown.
  • the hub body 29 of the rudder blade hub 17 is approximately conical and tapers downwards in the vertical direction. As can be seen, the hub outer surface 31 is spaced from the inside of the first outer wall 22 and the inside of the second outer wall 23 . Viewed in the axial direction of the longitudinal axis 25 of the rudder blade hub 17 , the hub body 29 has an upper face 39 and a lower face 40 .
  • the hub body 29 lies with an area of the upper end face 39 on the underside 41 of an upper frame 18 and with an area of the lower end face 40 on the upper side 42 of a lower frame 19.
  • the upper frame 18 and the lower frame 19 each have an opening 43 , so that a rudder shaft, not shown, can be inserted into the inner bore 30 of the hub body 29 .
  • the openings 43 are each delimited by a flange 44 which is connected to the first side wall 12 or to the first outer wall 22 and to the second side wall 13 or to the second outer wall 23 .
  • the upper end face 39 and the lower end face 40 of the hub body 29 have a circumferential step 46 or a circumferential shoulder.
  • the hub body 29 engages in the respective opening 43 of the upper frame 18 and the lower frame 19 by means of the steps 46 on the upper end face 39 and the lower end face 40 .
  • the hub body 29 is connected to the flanges 44 in the area of the upper end face 39 or the lower end face 40 .
  • the diameter 60 of the openings 43 is smaller than the outer diameter 32 of the hub body 29 and larger than the inner diameter 59 of the inner bore 30 of the hub body 29.
  • the hub body 29 of 6 points in the area of the upper end face 39 and the lower end face 40 each have a projection 62 surrounding the outer surface 31 of the hub, which is connected to an outer surface 63 on an inner side 64 of the upper frame 18 and/or the lower frame 19 .
  • the peripheral projection 62 has a transition radius 66 .
  • the transition radius is preferably between 5 and 10 cm, more preferably between 5 and 7 cm, particularly preferably 6 cm.
  • hub body 29 When hub body 29 is connected to upper frame 18 or lower frame 19 , hub body 29 protrudes over a length that roughly corresponds to height 67 of projection 62 into opening 43 of upper frame 18 or lower frame 19 .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Knives (AREA)
  • Earth Drilling (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Body Structure For Vehicles (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
EP17173460.1A 2017-05-30 2017-05-30 Ruderblatt mit einer ruderblattnabe und ruderblattnabe für ein ruderblatt Active EP3409575B1 (de)

Priority Applications (13)

Application Number Priority Date Filing Date Title
HRP20221052TT HRP20221052T1 (hr) 2017-05-30 2017-05-30 Krilo kormila sa glavčinom krila kormila i glavčina krila kormila za krilo kormila
DK17173460.1T DK3409575T3 (da) 2017-05-30 2017-05-30 Rorblad med et rorbladnav samt rorbladnav til et rorblad
PT171734601T PT3409575T (pt) 2017-05-30 2017-05-30 Porta do leme com um cubo de hélice de porta do leme e cubo de hélice de porta do leme para uma porta do leme
ES17173460T ES2925695T3 (es) 2017-05-30 2017-05-30 Pala de timón con buje de pala de timón y buje de pala de timón para una pala de timón
PL17173460.1T PL3409575T3 (pl) 2017-05-30 2017-05-30 Płetwa sterowa z piastą płetwy sterowej i piasta płetwy sterowej do płetwy sterowej
EP17173460.1A EP3409575B1 (de) 2017-05-30 2017-05-30 Ruderblatt mit einer ruderblattnabe und ruderblattnabe für ein ruderblatt
CN201710908962.0A CN108974312B (zh) 2017-05-30 2017-09-29 具有舵叶轮毂的舵叶和用于舵叶的舵叶轮毂
SG10201804501YA SG10201804501YA (en) 2017-05-30 2018-05-28 Rudder blade with a rudder blade hub and rudder blade hub for a rudder blade
CA3006531A CA3006531C (en) 2017-05-30 2018-05-29 Rudder blade with a rudder blade hub having a reduced weight
TW107118326A TWI761522B (zh) 2017-05-30 2018-05-29 舵葉、用於舵葉的舵葉輪轂以及用於舵葉輪轂的成套配件
US15/991,606 US10464654B2 (en) 2017-05-30 2018-05-29 Rudder blade with a rudder blade hub and rudder blade hub for a rudder blade
KR1020180062201A KR102524329B1 (ko) 2017-05-30 2018-05-30 러더 블레이드 허브를 구비하는 러더 블레이드 및 러더 블레이드용 러더 블레이드 허브
JP2018103017A JP7437869B2 (ja) 2017-05-30 2018-05-30 舵板ハブを備えた舵板および舵板用の舵板ハブ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17173460.1A EP3409575B1 (de) 2017-05-30 2017-05-30 Ruderblatt mit einer ruderblattnabe und ruderblattnabe für ein ruderblatt

Publications (2)

Publication Number Publication Date
EP3409575A1 EP3409575A1 (de) 2018-12-05
EP3409575B1 true EP3409575B1 (de) 2022-06-29

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EP17173460.1A Active EP3409575B1 (de) 2017-05-30 2017-05-30 Ruderblatt mit einer ruderblattnabe und ruderblattnabe für ein ruderblatt

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US (1) US10464654B2 (es)
EP (1) EP3409575B1 (es)
JP (1) JP7437869B2 (es)
KR (1) KR102524329B1 (es)
CA (1) CA3006531C (es)
DK (1) DK3409575T3 (es)
ES (1) ES2925695T3 (es)
HR (1) HRP20221052T1 (es)
PL (1) PL3409575T3 (es)
PT (1) PT3409575T (es)
SG (1) SG10201804501YA (es)
TW (1) TWI761522B (es)

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Publication number Priority date Publication date Assignee Title
CN112278222A (zh) * 2020-10-29 2021-01-29 广船国际有限公司 一种船舶舵叶及其摆动测试方法
CN114408140B (zh) * 2021-12-24 2023-06-20 宜昌测试技术研究所 一种适应于水下航行器的鳍舵装置

Family Cites Families (16)

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Publication number Priority date Publication date Assignee Title
US2283291A (en) * 1937-10-02 1942-05-19 Goetaverken Ab Afterbody of vessels
US2386803A (en) * 1943-11-26 1945-10-16 William B Jutte Means for cooling fluids on boats and the like
JPH0490493U (es) * 1990-12-19 1992-08-06
FR2692546B1 (fr) * 1992-06-17 1998-03-13 France Etat Armement Safrans pour navire de moyen et gros tonnage.
JPH0713698A (ja) * 1993-06-24 1995-01-17 Hitachi Ltd データ転送制御方式
JPH0713698U (ja) * 1993-08-18 1995-03-07 ジャパン・ハムワージ株式会社 舵軸と舵の結合構造
JP3665141B2 (ja) * 1996-06-21 2005-06-29 テンパール工業株式会社 電子式瞬時引きはずし装置付配線用遮断器
JP4464029B2 (ja) * 2001-04-19 2010-05-19 キヤノン株式会社 情報処理方法および制御プログラムおよび情報処理装置および周辺装置および応答方法および代理応答装置およびネットワークシステム
ATE457925T1 (de) * 2007-11-13 2010-03-15 Becker Marine Sys Gmbh & Co Kg Ruder für schiffe mit höheren geschwindigkeiten mit einem kavitationsreduzierenden, twistierten, insbesondere vollschweberuder
KR101110392B1 (ko) * 2008-12-09 2012-02-24 현대중공업 주식회사 비대칭 단면형상을 구비하는 선박용 러더
KR101281100B1 (ko) * 2011-05-19 2013-07-03 삼성중공업 주식회사 러더, 그리고 러더 제작 방법
NO336848B1 (no) * 2013-03-08 2015-11-16 Rolls Royce Marine As Rudders Roranordning
CN204871572U (zh) * 2015-07-27 2015-12-16 丰都县长源机械厂 可拆卸组装式舵叶
KR101760360B1 (ko) * 2015-08-03 2017-07-21 주식회사 제이에프코리아 선박용 복합소재형 러더 및 그 제조방법
CN105599889B (zh) * 2016-01-12 2019-12-27 中国人民解放军海军工程大学 一种高刚度轻质实芯复合材料舵叶
CN106005249B (zh) * 2016-08-05 2018-10-19 广船国际有限公司 一种舵叶固定工装及船舶

Also Published As

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TW201912510A (zh) 2019-04-01
PL3409575T3 (pl) 2022-10-03
CA3006531C (en) 2024-03-26
US10464654B2 (en) 2019-11-05
TWI761522B (zh) 2022-04-21
CA3006531A1 (en) 2018-11-30
JP7437869B2 (ja) 2024-02-26
ES2925695T3 (es) 2022-10-19
HRP20221052T1 (hr) 2022-11-11
SG10201804501YA (en) 2018-12-28
EP3409575A1 (de) 2018-12-05
JP2018203236A (ja) 2018-12-27
PT3409575T (pt) 2022-08-30
US20180346087A1 (en) 2018-12-06
KR20180131484A (ko) 2018-12-10
KR102524329B1 (ko) 2023-04-21
DK3409575T3 (da) 2022-09-12

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