EP2261113A2 - Hélice - Google Patents
Hélice Download PDFInfo
- Publication number
- EP2261113A2 EP2261113A2 EP10005674A EP10005674A EP2261113A2 EP 2261113 A2 EP2261113 A2 EP 2261113A2 EP 10005674 A EP10005674 A EP 10005674A EP 10005674 A EP10005674 A EP 10005674A EP 2261113 A2 EP2261113 A2 EP 2261113A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- wing
- propeller
- support body
- shoe
- propeller according
- 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
Links
Images
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
- B63H1/26—Blades
-
- 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
-
- 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
Definitions
- the invention relates to a propeller, in particular a built propeller for a boat drive, but is not limited thereto.
- propeller In ship propulsion systems, it has long been state of the art to form the propeller in one piece as a casting, typically made of bronze. Such a propeller typically consists of a hub, on the peripheral surface of which connect the propeller blades.
- the production is usually done by casting in sand molds and manual or machine post-processing. The production of the molds is particularly complicated because of the overlap of the wings.
- WO 87/04400 A1 is a propeller to the prior art, in which both the hub and the wings arranged thereon are integrally constructed of composite material, but this has the disadvantage that on the one hand, the production is complicated because of required shapes and on the other hand, only one damage Repair of the wing, but usually no replacement of the same is possible.
- the cheaper is the off WO 00/66429 A1 known propeller, in which the wings of composite material, that is formed of a composite material, but the wing base is formed like a flange, wherein in the flange a plurality of bores are provided, are guided by the screws with which the wings on the support body, ie attached to the hub of the propeller.
- all wings are the same design and individually mounted or disassembled so that they can be replaced individually in case of damage.
- the production of the wings is very expensive, especially as in the area between the flange-like foot and the actual wing, the cross-section is significantly reduced.
- the invention has for its object to provide a propeller, which avoids the aforementioned problems, but at least reduced, in which the propeller blades are interchangeable and in particular made of composite materials produced wings can be used.
- the propeller according to the invention has a central supporting body and at least two propeller blades fastened to the circumference thereof, the cross-section of which is designed to taper in the region of its base near the supporting body with increasing radial distance from the supporting body.
- Each wing is fixed by means of a wing form-fitting comprehensive wing shoe on the support body.
- the propeller according to the invention is therefore a built-propeller, which consists of a central support body typically a hub, which can be fixed in a conventional manner on a shaft.
- the support body may also be formed by the shaft itself or in another suitable manner.
- the basic components of the propeller according to the invention namely the central support body, wings and the wing shoes can in principle be formed from any suitable materials.
- the embodiment according to the invention is particularly advantageous if, in particular, the propeller blades are constructed of composite material, that is to say a composite material, such as, for example, carbon fiber reinforced plastic.
- the basic idea of the solution according to the invention is to provide a propeller which has a central supporting body on which wings are arranged on the circumference, the wings being fastened by means of wing shoes detachably on the supporting body, so that they are individually exchangeable.
- the wings in the foot area so in the supporting body near the area designed so that they are cross-section tapering with increasing radial distance relative to the longitudinal and rotational axis of the support body, ie cone-like, regardless of the other form of the propeller, which typically beyond Foot area extends to the full wing shape widening.
- the wing shoe is formed correspondingly reversed, surrounds the wing base circumferentially and thus secures this form-fitting in the radial direction, since the wing root due to its cone-like with the tapered end radially outwardly facing shape can not penetrate this comprehensive shoe.
- the shoe itself is suitably attached to the support body. This training is followed by a nearly ideal introduction of force from wing to support body or vice versa.
- the wing is laterally supported in its foot area, ie transverse to its longitudinal axis by the shoe.
- the wing shoes of the propeller according to the invention are fastened by means of screws to the support body.
- Such screw connections are standardized and also allow transmission of high forces. For attaching and releasing such screw no special tools are required, so they do not require much effort.
- a wing shoe is not formed in one piece but divided in the circumferential direction, since then the wing shoe is formed independently of the wing shape in the area beyond the wing foot and can also be mounted after the wing has been manufactured.
- a propeller blade expands from its wearer-proximate end to its free end to form a wing shape. If the shoe is formed split, this can be attached after completion of the propeller blade by the shoe parts are applied from two sides to the foot and attached to it. It is particularly advantageous if the division of the wing shoe is not only about half provided, but such that the wing is surrounded on the two flat sides about half and only on a narrow side of a foot part.
- the wing shoe is designed so that it surrounds the wing foot not only circumferentially, but also has a sole that with their one Side facing the support body and with the other to the support body facing end face of the blade foot points.
- the wing foot is completely covered by the wing shoe.
- the components of the propeller according to the invention can basically consist of the same or of different materials.
- the supporting body is made of metal, for example bronze
- the propeller blades are made of a composite material, in particular carbon-fiber-reinforced plastic.
- the structure of the wings of composite material is particularly advantageous, first, because the complex three-dimensional shape of these wings of such a composite material is relatively easy to produce, on the other hand, because thereby the weight of the propeller can be significantly reduced and ultimately, because such made of composite material wings have much better damping properties than metal wings. This is particularly advantageous when using the propeller on a military submarine, since this will have a favorable effect on the signature of the boat.
- the wing shoes can in principle be formed from any suitable material.
- the invention provides, however, to form them of metal, as a result, the power transmission from the wing to the shoe and the shoe on the support body can be done in almost ideal manner without having a particularly high production cost.
- a complex shaping in the region of the shoe is required with a suitable design of the propeller only in the area in which engages the wing foot there.
- the diegelfuß can have simple geometric shapes that are favorable to process manufacturing. In this case, any tolerances in the area of the receptacle of the shoe, that is, where the wing foot engages, can be at least partially compensated for by suitable manufacturing methods, for example, by potting the remaining spaces with an adhesive resin.
- the propeller blade is provided with a metallic core at least in the foot region.
- This core preferably has a cross-section which is tapered with increasing radial distance from the support body.
- Such a metallic core supports the introduction of force between the foot of the wing and the wing shoe and prevents evasion of the surrounding composite layers.
- At least one recess in the core but preferably one or more openings provided, which are penetrated by the plastic of the surrounding composite or filler material.
- a positive connection between the metallic core and the composite material or filling in this area plastic is achieved, which incorporates the core inextricably in the wing.
- the support body of the propeller according to the invention is advantageously not provided as usual with a round outer contour, but according to an embodiment of the invention with a polygonal cross section, preferably a regular polygonal cross section.
- a polygonal cross section preferably a regular polygonal cross section.
- Such polygonal outer contour is manufacturing technology easy to manufacture, especially in the field of wing shoes, which are then to be provided on its radially inward-facing side only with one or more flat surfaces.
- a wing shoe not only extends over one but at least over two or even advantageously over three sides of the polygonal cross-section, as this can improve the mechanical strength of the structure can be achieved.
- the wing shoes according to the invention are advantageously designed and arranged so that they completely cover the supporting body circumferentially and preferably form a cylindrical, frusto-conical or other desired basic contour.
- a basic contour in the sense of the invention is to be understood as meaning the contour that results when the blades and the part of the blade shoe enclosing this collar-like shape in the area of the blade root are neglected.
- Achieving a cylindrical or frusto-conical basic contour through the wing shoes has the advantage that outwardly the polygonal cross-sectional shape of the support body does not appear and flow and signature technology, the effect of a conventional hub is achieved.
- a frontal stop In order to align the wing shoes in the axial direction of the support body, according to the invention can be provided on one side of the support body, advantageously on both sides, a frontal stop.
- Such an end stop can be formed by annular disks, which are connected to the support body or which are bolted together with the support body on the shaft.
- propeller invention is particularly advantageous for a ship propulsion, especially that of a submarine, applicable, but the structural design is not limited thereto.
- a correspondingly adapted structurally configured propeller can be used for example as a wind turbine of a wind turbine or as a fan.
- the propeller shown in the figures has a support body 1, which is designed as a hub.
- the existing metal support body 1 has a central bore 2, as is common in propellers for watercraft.
- the outer contour of the support body 1 is not round, but angular.
- the support body 1 shown here has a seven-cornered cross section, so that there are seven flat sides 3, which are arranged parallel to the axis of rotation 4 of the support body 1.
- a total of seven propeller blades 5 are arranged distributed uniformly over the circumference.
- the wings 5 are shown only in the supporting body near area, they are arranged obliquely to the axis of rotation 4 and each have two flat sides 6 and 7 and two narrow sides or edges 8 and 9.
- the propeller blades 5 are fastened via wing shoes 10, which comprise the propeller blades 5 in the area of the blade root 11 in a form-fitting and complete manner.
- the wing shoes 10 have a plurality of holes 12 which are aligned with corresponding threaded holes in the flat sides 3 of the support body 1 and which are penetrated by cap screws 13, with which the wing shoes 10 are detachably attached to the support body 1.
- Support body 1 and wing shoes 10 are formed of metal, whereas the wings 5 are constructed of composite material, here of carbon fiber reinforced plastic.
- each propeller blade 5 has a cross-section decreasing radially outward from its supporting body-proximal end, whereas the female wing shoe 10 is inversely proportioned in the region of its receptacle for the wing base 11, ie the receptacle has a cross section increasing towards the supporting body 1.
- wing foot 11 and wing shoe 10 are formed so that the wing shoe 10 engages around the wing leg 11 positively and holds, as best of FIG. 4 is apparent.
- the wing shoe 10 surrounds the wing foot 11 not only circumferentially, but also on the trag Eisenem end, ie the diegelfuß 11 has no direct contact with the support body 1, but is exclusively connected via the wing shoe 10 with this.
- a metallic core 14 is provided in the foot region 11 and radially beyond reaching, the cross section of Tragenianahen end decreases radially outward and thus represents a kind of wedge in the connection between the wing base 11 and wing shoe 10, which ensures that with increasing load of the compound sufficient internal resistance is formed, so that the forces applied by the composite material of the wing forces can be transferred into the shoe 10.
- the metallic core 14 has an in FIG. 4 visible longitudinal aperture 20, which is interspersed with the surrounding plastic 15 and thus the core 14 positively holds within the wing foot 11.
- the wing shoes 10 are, as also shown in FIG. 1 shows, a plurality of surfaces 3 of the support body 1 formed across. They have on the inside three flat surfaces which extend over a total of three flat surfaces 3 of the support body 1 and are formed teilkonisch on the outside, so that when all shoes are mounted, forms a substantially frusto-conical outer surface like a conventional hub.
- each partial shoe 16, 17 two flat sides 6, 7 in half and a narrow side or edge 8 or 9 surrounds.
- the division is approximately half, so that each partial shoe 16, 17 includes the wing foot 11 by about 180 °.
- the production of the above-described propeller is such that the support body 1 is made of a casting or solid material machined, as well as the wing shoes 10.
- Propellers shown are therefore a total of seven identical partial shoes 16 and seven identical partial shoes 17 manufacture.
- the propeller blades 5 are manufactured, for example, so that each wing is formed from two wing halves, which are each manufactured in a corresponding shape, with a sufficiently thick CFK layer on the outside. These layers are then connected to each other with the inclusion of the metallic core 14 and backfilling of the remaining space with plastic 15 to a wing 5.
- the wing thus formed is now surrounded in a corresponding device with the part shoes 16 and 17.
- the receptacle for the wellgelfuß 11 is formed by a recess in base material on the one hand and a collar-shaped Anformung on the other. It is understood that it may be possible to dispense with the collar-shaped molding, if the base material is chosen to be correspondingly stronger. Here is a compromise of fluidic requirements on the one hand and strength requirements on the other hand to find.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Toys (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10005674T PL2261113T3 (pl) | 2009-06-09 | 2010-06-01 | Śruba |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009024845A DE102009024845A1 (de) | 2009-06-09 | 2009-06-09 | Propeller |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2261113A2 true EP2261113A2 (fr) | 2010-12-15 |
EP2261113A3 EP2261113A3 (fr) | 2012-07-18 |
EP2261113B1 EP2261113B1 (fr) | 2014-02-19 |
Family
ID=42790916
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10005674.6A Active EP2261113B1 (fr) | 2009-06-09 | 2010-06-01 | Hélice |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2261113B1 (fr) |
KR (2) | KR101496869B1 (fr) |
DE (1) | DE102009024845A1 (fr) |
ES (1) | ES2464346T3 (fr) |
PL (1) | PL2261113T3 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016131877A1 (fr) | 2015-02-20 | 2016-08-25 | Jouni Jokela | Moyeu et pale pour un rotor d'une machine à écoulement de fluide |
WO2018075163A1 (fr) * | 2016-10-17 | 2018-04-26 | General Electric Company | Ensemble hélice et son procédé d'assemblage |
WO2018075217A1 (fr) * | 2016-10-17 | 2018-04-26 | General Electric Company | Système pour hélices marines composites |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101444348B1 (ko) * | 2012-04-27 | 2014-09-26 | 삼성중공업 주식회사 | 선박용 추진장치, 이를 갖춘 선박 |
KR101533681B1 (ko) * | 2014-02-25 | 2015-07-03 | 대우조선해양 주식회사 | 블레이드의 탈부착이 용이한 선박용 프로펠러 조립체 |
KR101961612B1 (ko) | 2014-10-28 | 2019-03-26 | 현대중공업 주식회사 | 선박용 프로펠러 |
DE102016204393B3 (de) | 2016-03-16 | 2017-07-06 | Thyssenkrupp Ag | Eigenfrequenzoptimierter Propeller |
CN105966582A (zh) * | 2016-05-25 | 2016-09-28 | 哈尔滨工业大学 | 一种基于双向形状记忆聚合物复合材料桨叶的船用可变形螺旋桨 |
CN111572741A (zh) * | 2020-05-20 | 2020-08-25 | 上海外高桥造船有限公司 | 可组装式螺旋桨 |
KR102241955B1 (ko) * | 2020-12-16 | 2021-04-19 | 주식회사 부산피알에스 | 선박용 조립식 프로펠러 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004400A1 (fr) | 1986-01-28 | 1987-07-30 | Stroemberg Karl Otto | Dispositif sur des organes formant partie d'une turbomachine, et procede de production desdits organes |
DE4211202A1 (de) | 1992-04-03 | 1993-10-07 | Dirk Buechler | Flügel-Nabenverbindung für Schiffs- und Bootspropeller |
WO2000066429A1 (fr) | 1999-05-05 | 2000-11-09 | United Technologies Corporation | Pale d'helice boulonnee |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE71360C (de) * | J. C. BULL in Erith, Middlesex, England | Schiffsschraube mit veränderbarer Ganghöhe | ||
GB153534A (en) * | 1920-05-05 | 1920-11-11 | Arthur Lang Henderson | An improved construction of marine and like propellers |
GB740758A (en) * | 1952-10-27 | 1955-11-16 | Power Jets Res & Dev Ltd | Bladed rotors for axial flow compressors, turbines, and like fluid flow machines |
GB766093A (en) * | 1954-03-27 | 1957-01-16 | Strommens Vaerksted As | Improvements in propellers for ships |
US3734642A (en) * | 1971-06-29 | 1973-05-22 | United Aircraft Corp | Aerodynamic blade root end attachment |
FR2195255A5 (fr) * | 1972-08-04 | 1974-03-01 | Snecma | |
DD103200A1 (fr) * | 1973-04-11 | 1974-01-12 | ||
GB1560829A (en) * | 1975-08-26 | 1980-02-13 | Hawker Siddeley Dynamics Ltd | Manufacture of propeller blades |
JPS5926395A (ja) * | 1982-08-06 | 1984-02-10 | Mitsui Eng & Shipbuild Co Ltd | 船舶推進用プロペラの製造方法 |
US5074754A (en) * | 1990-04-23 | 1991-12-24 | United Technologies Corporation | Rotor blade retention system |
US5222297A (en) * | 1991-10-18 | 1993-06-29 | United Technologies Corporation | Composite blade manufacture |
DE19936948C1 (de) * | 1999-08-05 | 2001-01-25 | Peter Mueller | Verstellpropeller für Motorboote und Sportboote |
DE10113609C1 (de) * | 2001-03-20 | 2002-03-21 | Voith Siemens Hydro Power | Turbinenrotor, insbesondere für Aufwindturbinen |
US7056092B2 (en) * | 2004-04-09 | 2006-06-06 | Stahl Bradford C | Modular propeller |
FR2890684B1 (fr) * | 2005-09-15 | 2007-12-07 | Snecma | Clinquant pour aube de turboreacteur |
FR2918702B1 (fr) * | 2007-07-13 | 2009-10-16 | Snecma Sa | Clinquant pour aube de turbomachine |
DE202007013319U1 (de) * | 2007-09-13 | 2007-12-20 | Schlemenat, Alfred W. | Lösbare kraft- und formschlüssige Verbindung einer Propellernabe und einem Verstellpropeller |
-
2009
- 2009-06-09 DE DE102009024845A patent/DE102009024845A1/de not_active Withdrawn
-
2010
- 2010-06-01 PL PL10005674T patent/PL2261113T3/pl unknown
- 2010-06-01 ES ES10005674.6T patent/ES2464346T3/es active Active
- 2010-06-01 EP EP10005674.6A patent/EP2261113B1/fr active Active
- 2010-06-08 KR KR20100054036A patent/KR101496869B1/ko active IP Right Grant
-
2013
- 2013-06-20 KR KR1020130070731A patent/KR20130081267A/ko not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1987004400A1 (fr) | 1986-01-28 | 1987-07-30 | Stroemberg Karl Otto | Dispositif sur des organes formant partie d'une turbomachine, et procede de production desdits organes |
DE4211202A1 (de) | 1992-04-03 | 1993-10-07 | Dirk Buechler | Flügel-Nabenverbindung für Schiffs- und Bootspropeller |
WO2000066429A1 (fr) | 1999-05-05 | 2000-11-09 | United Technologies Corporation | Pale d'helice boulonnee |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016131877A1 (fr) | 2015-02-20 | 2016-08-25 | Jouni Jokela | Moyeu et pale pour un rotor d'une machine à écoulement de fluide |
WO2018075163A1 (fr) * | 2016-10-17 | 2018-04-26 | General Electric Company | Ensemble hélice et son procédé d'assemblage |
WO2018075217A1 (fr) * | 2016-10-17 | 2018-04-26 | General Electric Company | Système pour hélices marines composites |
US10486785B2 (en) | 2016-10-17 | 2019-11-26 | General Electric Company | Propeller assembly and method of assembling |
Also Published As
Publication number | Publication date |
---|---|
KR101496869B1 (ko) | 2015-02-27 |
EP2261113A3 (fr) | 2012-07-18 |
EP2261113B1 (fr) | 2014-02-19 |
PL2261113T3 (pl) | 2014-11-28 |
KR20130081267A (ko) | 2013-07-16 |
KR20100132462A (ko) | 2010-12-17 |
DE102009024845A1 (de) | 2010-12-16 |
ES2464346T3 (es) | 2014-06-02 |
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