EP3016855B1 - Propeller-naben-pressverband - Google Patents

Propeller-naben-pressverband Download PDF

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Publication number
EP3016855B1
EP3016855B1 EP14739673.3A EP14739673A EP3016855B1 EP 3016855 B1 EP3016855 B1 EP 3016855B1 EP 14739673 A EP14739673 A EP 14739673A EP 3016855 B1 EP3016855 B1 EP 3016855B1
Authority
EP
European Patent Office
Prior art keywords
propeller
propeller hub
sleeve
drive shaft
hub
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
EP14739673.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3016855A1 (de
Inventor
Roland Körner
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.)
ThyssenKrupp Marine Systems GmbH
Original Assignee
ThyssenKrupp Marine Systems GmbH
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 ThyssenKrupp Marine Systems GmbH filed Critical ThyssenKrupp Marine Systems GmbH
Publication of EP3016855A1 publication Critical patent/EP3016855A1/de
Application granted granted Critical
Publication of EP3016855B1 publication Critical patent/EP3016855B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H1/00—Propulsive elements directly acting on water
    • B63H1/02—Propulsive elements directly acting on water of rotary type
    • B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
    • B63H1/14—Propellers
    • B63H1/20—Hubs; Blade connections
    • 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
    • B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts

Definitions

  • the invention relates to a drive device with the features specified in the preamble of claim 1.
  • the starting point of the invention are propeller drives in which a propeller hub with individually attached propeller blades is mounted on a drive shaft.
  • a press connection of the propeller hub with the drive shaft in this case allows the transmission of comparatively large torques between the propeller hub and the drive shaft. Press connections show the JP S-63180399 U and the DE 12 93056 B ,
  • the mostly made of bronze or carbon fiber reinforced plastic propeller blades are bolted from the outside on the outside of the propeller hub.
  • the propeller blades usually each have a foot which protrudes transversely to the connecting direction of the propeller blade and propeller hub on the outer contour of the propeller blade, wherein at this projecting beyond the outer contour of the propeller blade portion of the foot, the screwing of the propeller blade with the propeller hub.
  • the feet required on the propeller blades result in the propeller hubs having a comparatively large outside diameter, and as the number of propeller blades of the propeller increases, an ever larger propeller hub is required.
  • the object of the invention is to provide a drive device of the type described, the propeller compared to the previously conventional propellers with the same number the propeller blades have a smaller propeller hub with regard to their external dimensions or, if the propeller hub has the same size, a larger number of propeller blades may have:
  • the drive device according to the invention can in principle be used in any propeller driven vehicle, but is particularly suitable for an underwater vehicle and in particular for a military submarine.
  • This drive device is equipped in a conventional manner with a drive shaft and a propeller arranged on the drive shaft.
  • the propeller has a propeller hub connected to the drive shaft and at least two propeller blades releasably attached to the propeller hub.
  • the underlying idea of the invention is; Starting from one of the drive shaft facing the inside of the propeller hub, the propeller blades are to be screwed to the propeller hub by means of cap screws.
  • This type of screw connection has the advantage that the previously required for screwing the propeller blade with the propeller hub on the propeller blades, protruding transversely to the connecting direction of the propeller blade and propeller hub on the outer contour of the propeller blade feet are no longer needed, with the result that in comparison to the previously known propellers of the type in question with the same number of propeller blades
  • Propeller hulls can be used with a significantly small outer diameter or the propeller of the drive device according to the invention with the same size propeller hub can have a larger number of propeller blades.
  • the propeller hub For screwing the propeller blades with the propeller hub, the propeller hub has through holes; extending in the radial direction through the propeller hub; while the propeller blades, which are expediently formed from a solid material at least in an end region adjoining the propeller hub, have threaded blind holes at their end contacting the propeller hub in the radial direction.
  • the cap screws are guided from the inside of the propeller hub through the through holes formed on the propeller hub, and screwed into the blind holes formed on the propeller blades.
  • the through holes formed at the propeller hub are provided here at their end adjacent to the inside of the propeller hub, preferably with cylindrical extensions into which the screw heads are countersunk.
  • the propeller blades can be brought directly to the outer peripheral surface of the propeller hub to the plant and screwed there with the propeller hub.
  • recesses are formed on the outer peripheral surface of the propeller hub, in which engage the ends of the propeller blades.
  • depressions extending in the radial direction are provided on the outer circumferential surface of the propeller hub, which are expediently dimensioned such that the propeller blades inserted into the depressions are supported on the side walls of these depressions aligned transversely to the direction of insertion of the propeller blades.
  • a particularly secure hold of the propeller blades in the recesses formed on the propeller hub can be realized if, as provided in an advantageous development of the invention, the cross section of the recesses formed on the propeller hub in the direction of a central axis of the propeller hub continuously tapers and the shape the engaging in the recesses ends of the propeller blades corresponds to the shape of the recesses formed on the propeller hub.
  • the propeller blades can be fixed in the recesses virtually in the manner of a splined connection, wherein in addition to the positive connection by the engagement of the ends of the propeller blades in the recesses an additional adhesion between the propeller blades and the Propeller hub is generated.
  • connection of the propeller hub with the drive shaft takes place in the drive device according to the invention preferably non-positively in the form of a press connection and particularly advantageous via a pressure oil compression bandage; the simple release of the connection of drive shaft and propeller hub, for example, for repair or replacement of the propeller allows:
  • the propeller hub of the drive device is preferably arranged over a between the propeller hub and the drive shaft Sleeve connected by means of a Druckölpress saides with the drive shaft, while the propeller hub is preferably connected via a transverse compression bandage with the sleeve.
  • the drive shaft in the region of the arrangement of the propeller hub and the sleeve are preferably conically formed on the inside.
  • the sleeve On its outer side, the sleeve is preferably cylindrical in this case.
  • the outer cylindricity of the sleeve makes it possible to use as a propeller hub an easily manufactured hollow cylindrical ring element.
  • the formation of the Querpress claimedes between the sleeve and the propeller hub takes place with appropriate dimensioning of the sleeve and propeller hub by radial expansion of the sleeve in the formation of the pressure oil press fit between the sleeve and the drive shaft.
  • the propeller hub has a certain oversize relative to the sleeve.
  • a further and preferably additional measure for ensuring a necessary for the required torque transmission joint pressure between the propeller hub and the sleeve is advantageous to form the propeller hub from a Maiterial whose Elastic Discharge is greater than that of the material from which the sleeve is formed. That is, the propeller hub is preferably stiffer than the sleeve.
  • the propeller hub made of an austenitic steel and the sleeve are formed of bronze.
  • austenitic steel for the propeller hub expediently a stainless steel, for.
  • an austenitic stainless steel can be used.
  • At least one radially extending through hole is advantageously formed on the propeller hub and the sleeve, the two through holes being aligned with each other and together with an insertion port an oil supply line form.
  • two such through holes are provided on the propeller hub and the sleeve, which are formed in the vicinity of the axial ends of propeller hub and sleeve.
  • the at least one oil supply line in the contact area of the propeller hub and sleeve is pressure-tight sealed to prevent the oil from entering the joint between the propeller hub and the sleeve.
  • a plurality of oil supply lines are provided, which are each sealed pressure-tight in the contact area of the propeller hub and sleeve.
  • the through holes formed on the sleeve are formed as threaded holes, in which a connectable with a hydraulic line ⁇ leinGermanstutzen is screwed.
  • the screwing of the ⁇ lein gleichstutzen in the threaded holes formed on the sleeve is typically carried out from the outside of the propeller hub, where they are each connected to a hydraulic line.
  • the ⁇ lein gleichstutzen are dimensioned so that they are in the radial direction extend beyond the contact area of propeller hub and sleeve and seal this contact area pressure-tight.
  • the in Fig. 1 illustrated propeller 2 has a hollow cylindrical propeller hub 4, on whose outside a plurality of propeller blades are arranged, wherein in Fig. 1 For the sake of clarity, only the end portion of a propeller blade 6 adjacent to the propeller hub 4 is shown.
  • the propeller hub 4 is made of austenitic steel.
  • the propeller blades 6 are made of carbon fiber reinforced plastic, wherein they have a metallic core 8 in one of the propeller hub 4 facing end portion ( Fig. 3 ).
  • recesses 10 are formed on the outer peripheral side of the propeller hub, in which the propeller blades 6 with their end portions 12 (see also Fig. 3 ) intervene.
  • the recesses 10 delimiting side walls 14 of the recesses 10 are based on the engagement of the end portions 12 in the recesses 10 of the propeller hub 4 slightly bevelled, so that the cross-section of the recesses 10 decreases with increasing depth of the recess 10.
  • the shape of the end sections 12 of the propeller blades 6 corresponds to the shape of the recesses 10.
  • through holes 16 are formed on the propeller hub 4; which extend from the inside of the propeller hub 4 to the respective recess 10 out. Adjacent to the inside of the propeller hub 4, the through-holes 16 each have a cylindrical extension 18. Corresponding to the position of the through holes 16 formed on the propeller hub 4 are four thread blind holes 20 are formed on the propeller hub 4 radially facing side of the end portions 12 of the propeller blades 6, each hineinerrangen in the metallic core 8 of the propeller blades 6. The through holes 16 formed on the propeller hub 4 and the threaded blind holes 20 formed on the end portions 12 of the propeller blades 6 serve to receive cap screws 22 with which the propeller blades 6 are bolted to the propeller hub 4.
  • the propeller 2 is attached to a drive shaft 24 operatively connected to a drive motor.
  • the propeller 2 is attached to a portion 26 of the drive shaft, which is conical.
  • a sleeve 28 is arranged at the portion 26 of the drive shaft 24, a sleeve 28 is arranged.
  • This sleeve 28 is formed of bronze.
  • the sleeve 28 has a conical inner volume.
  • Radially on the outside, the sleeve 28 is cylindrical, wherein at an in Fig. 3 left end of the sleeve 28 is a radially outwardly projecting Ringkrageh 30 is formed.
  • the sleeve 28 is peripherally surrounded by the propeller hub 4, which bears against the annular collar 30.
  • the sleeve 28 is rotatably connected by means of a pressure oil press fit with the drive shaft 24.
  • a joint 32 between the sleeve 28 and the portion 26 of the drive shaft 24 it is necessary in a joint 32 between the sleeve 28 and the portion 26 of the drive shaft 24 to build up an oil film:
  • two ⁇ leinschreibstutzen 32 are provided, each by a radially through the propeller hub 4 extending through hole 34 are guided and screwed in an aligned and radially extending through the sleeve 28 through hole 36.
  • the ⁇ leinriostutzen 38 and the through holes 36 are sealed pressure-tight, so that no oil can penetrate into the contact area between the propeller hub 4 and the sleeve 28.
  • a pressing device 40 which around a cylindrical portion 42 of the drive shaft 24, the in Fig. 3 is located to the left of the section 26, is arranged around. Out Fig. 3 not visible, the pressing device 40 is secured against axial movement.
  • an annular space 44 is formed, which extends around the entire drive shaft 24 around. This annular space 44 is designed to be open in the direction of the sleeve 28 located next to the pressing device 40.
  • an oil supply line 46 leads to the annular space 44.
  • an annular piston 48 is slidably mounted in the axial direction of the drive shaft 24; If oil is introduced into the annular space 44 via the oil feed line 46, the annular piston 48 is pressed out of the annular chamber 44, wherein the sleeve 28 is displaced in the direction of the increasing slope of the portion 26 of the drive shaft 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP14739673.3A 2013-07-03 2014-06-27 Propeller-naben-pressverband Active EP3016855B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013212948.3A DE102013212948A1 (de) 2013-07-03 2013-07-03 Antriebsvorrichtung
PCT/EP2014/001767 WO2015000572A1 (de) 2013-07-03 2014-06-27 Propeller-naben-pressverband

Publications (2)

Publication Number Publication Date
EP3016855A1 EP3016855A1 (de) 2016-05-11
EP3016855B1 true EP3016855B1 (de) 2018-02-21

Family

ID=51210402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14739673.3A Active EP3016855B1 (de) 2013-07-03 2014-06-27 Propeller-naben-pressverband

Country Status (4)

Country Link
EP (1) EP3016855B1 (ko)
KR (1) KR101857890B1 (ko)
DE (1) DE102013212948A1 (ko)
WO (1) WO2015000572A1 (ko)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113278A1 (de) * 2022-05-25 2023-11-30 KSB SE & Co. KGaA Rührwerkanordnung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293056B (de) * 1963-02-18 1969-04-17 P & O Res & Dev Co Keilnutlose Verbindung eines Schiffspropellers mit der Propellerwelle

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1036492A (en) * 1964-05-04 1966-07-20 John Michael Langham Improvements in or relating to a marine propeller assembly and a method of mounting same
US3470843A (en) * 1966-07-07 1969-10-07 Satterthwaite James G Torque-journal hub propeller
GB1209786A (en) * 1967-12-11 1970-10-21 Glacier Co Ltd Stern constructions for marine vessels having propellers with detachable blades
DE2302251A1 (de) * 1972-01-24 1973-08-02 Kanonerskij Sudoremontnyj Sawo Schiffsschraube mit abnehmbaren fluegeln
GB1455504A (en) * 1974-02-15 1976-11-10 Stone Manganese Marine Ltd Marine propellers
DE2535664C3 (de) * 1975-08-09 1978-04-20 Blohm + Voss Ag, 2000 Hamburg Vorrichtung zum Montieren einer Schiffsschraube
DE2550755C2 (de) * 1975-11-12 1984-05-03 Anton Piller Kg, 3360 Osterode Laufrad für Axialgebläse
GB1482375A (en) 1976-04-08 1977-08-10 Stone Manganese Marine Ltd Marine-propeller assemblies
DE2828257A1 (de) * 1978-06-28 1980-01-03 Pilgrim Eng Dev Verfahren zur befestigung einer schiffsschraube und anordnung hierfuer
JPS63180399U (ko) * 1987-05-11 1988-11-22
DE4236253C2 (de) * 1992-10-20 1997-05-15 Sulzer Hydro Gmbh Vorrichtung zum Verändern der Winkelstellung von Flügeln eines Schiffspropellers
SE514094C2 (sv) * 1999-05-19 2001-01-08 Kamewa Ab Fartygspropeller med löstagbart fastsatta blad
CN103482047B (zh) * 2013-10-09 2015-10-28 中国船舶重工集团公司第七0四研究所 桨叶分离螺距微调式四叶螺旋桨

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293056B (de) * 1963-02-18 1969-04-17 P & O Res & Dev Co Keilnutlose Verbindung eines Schiffspropellers mit der Propellerwelle

Also Published As

Publication number Publication date
KR20160027167A (ko) 2016-03-09
EP3016855A1 (de) 2016-05-11
KR101857890B1 (ko) 2018-05-14
WO2015000572A1 (de) 2015-01-08
DE102013212948A1 (de) 2015-01-08

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