EP2484583A1 - Schiffsantriebsvorrichtung - Google Patents

Schiffsantriebsvorrichtung Download PDF

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Publication number
EP2484583A1
EP2484583A1 EP10819939A EP10819939A EP2484583A1 EP 2484583 A1 EP2484583 A1 EP 2484583A1 EP 10819939 A EP10819939 A EP 10819939A EP 10819939 A EP10819939 A EP 10819939A EP 2484583 A1 EP2484583 A1 EP 2484583A1
Authority
EP
European Patent Office
Prior art keywords
end portion
blades
propulsion shaft
independent blades
propulsion
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.)
Withdrawn
Application number
EP10819939A
Other languages
English (en)
French (fr)
Other versions
EP2484583A4 (de
Inventor
Pablo Alfonso Gonzalez Abal
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2484583A1 publication Critical patent/EP2484583A1/de
Publication of EP2484583A4 publication Critical patent/EP2484583A4/de
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention as expressed in the heading of this specification, relates to a vessel propulsion device of the type used to give movement to ships and which typically has a propeller diameter between 900 and 7,000 mm.
  • the object of the invention is to provide shaft / propeller propulsion equipment in which the blades are interchangeable and fixed to the propulsion shaft without screws and without adjustment between male and female cones.
  • This assembly eliminates the localized stresses normally found around the set screws of the blades and in the cone adjustment, in addition to increasing the robustness of the unit and saving assembly, dismantling and adjustment time.
  • This invention also reduces the number of components in the unit, making it simpler and more compact.
  • the invention is thus included in the field of the naval industry and, more particularly, in the field of machinery and accessories for the mobilization of boats and / or naval propulsion.
  • said propulsion consists of the functional combination of a shaft, a hub, several blades and a series of fixing elements.
  • the propeller receives the movement with the collaboration of the corresponding transmission, and the corresponding engine.
  • a plurality of blades is also assembled to this hub by screws, distributed in its periphery.
  • the propeller is fixed to the propulsion shaft by an adjustment between two cones, male and female, to which it is necessary to add the assembly of blades to the hub through several screws and pins, which involves several problems which mainly centre on the following aspects:
  • Utility Model number 200900787 property of the same holder of this Utility Model, is known.
  • the invention proposes a propulsion device for vessels characterized in that the end portion of the propulsion shaft incorporates means for directly and radially fixing thereon a series of independent blades forming the propeller, so that said fixing means are not performed by screwing but by a male / female coupling, for which purpose the end portion of the propulsion shaft adopts a prismatic configuration, the number of faces whereof coincides with the number of blades included in the propeller (generally four), incorporating on each one of said lateral faces longitudinal guides for male / female coupling by longitudinal slide.
  • the blades are directly fixed to the propulsion shaft through a complementary rib of said slide or longitudinal groove.
  • Said grooves end in a base flange by way of annular extension which acts as buffer for the blade assembly, which will be perfectly fixed and adjusted by a cap on the opposite face.
  • This cap will be fixed to the end portion of the propulsion shaft by threading or through one or several screws easily extracted from the stern face.
  • Groove and rib can configure a dovetail coupling, a T-section coupling or any other that guarantees stability of the blades when operating.
  • the unit described is complemented with said cap which, once the blades are mounted on the shaft, is screwed to the latter forming the means for axially retaining said blades, easily detachable.
  • This male / female assembly i.e. without screws, eliminates said localized stresses, normally found in the through holes of conventional set screws due to their tightening.
  • the grooves enable a fast changing of the blades by simply dismantling the cap that closes the unit.
  • the blades can be easily assembled "in situ", which has a positive impact on the transport, storage and handling costs with respect to a standard fixed pitch propeller.
  • the design of the new device of the invention avoids the adjustment between propeller hub and propulsion shaft due the fact that, in this case, it is the propulsion shaft that directly houses the blades. With this in no case shall adjustment be necessary between the male (shaft) and female (propeller) cones, unavoidable in the conventional assembly.
  • the vessel propulsion device is determined from a propeller (1) which has several independent blades (2) which are directly fixed to the end portion (3) of a propulsion shaft (4) which rotates propelled by the vessel engine.
  • Said end portion (3) of the propulsion shaft (4) comprises a prismatic structure with a base flange (5) for axially retaining in one direction, which serves as buffer element of the blades (2) when they are coupled to the different lateral faces (6) of the end portion (3) of the propulsion shaft (4).
  • the fixing of the independent blades (2) to the end portion (3) of the propulsion shaft (4) is performed by means of a male / female coupling through grooves (7) and ribs (8) which may be arranged indistinctly on said lateral faces of the end portion (3) and heads (9) of the independent blades (2).
  • the grooves (7) are arranged longitudinally on the lateral faces (6) of the end portion (3) of the propulsion shaft (4), whilst the ribs (8) will be arranged on the heads (9) of the independent blades (2) forming the propeller (1).
  • a front cap (10) which comprises a unit adjusted and axially immobilized completing a hydrodynamic geometry.
  • Said front cap (10) is fixed to the end portion (3) of the propulsion shaft (4) by screws (11), although it could also be directly fixed by threading.
  • the end portion (3) of the propulsion shaft (4) has the special characteristic that, on each of its lateral faces (6) in parallel arrangement to its propulsion shaft (4), it incorporates one or several grooves (7) in dovetail (or another configuration) designed to receive complementary ribs (8) to those each independent blade (2) is provided with in its head (9).
  • the cap (10) is mounted, so that after the assembly of the independent blades (2), it is solidly joined to the propulsion shaft (4) by directly threading to the propulsion shaft (4) or array of screws (11) as previously stated, compacting all the assembly and immobilizing the heads (9) of said blades (2) in axial direction, in collaboration with the base flange (5) of the propulsion shaft (4).
  • the ribs (8) are arranged on the front faces (12) of the heads (9) of the independent blades (2), front faces (12) which are complementary to the lateral faces (6) of the end portion (3), with the faces contacting with one another.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP10819939A 2009-09-30 2010-03-11 Schiffsantriebsvorrichtung Withdrawn EP2484583A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200930479U ES1071369Y (es) 2009-09-30 2009-09-30 Dispositivo de propulsion de embarcaciones
PCT/ES2010/070145 WO2011039391A1 (es) 2009-09-30 2010-03-11 Dispositivo de propulsión de embarcaciones

Publications (2)

Publication Number Publication Date
EP2484583A1 true EP2484583A1 (de) 2012-08-08
EP2484583A4 EP2484583A4 (de) 2013-03-13

Family

ID=41644752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10819939A Withdrawn EP2484583A4 (de) 2009-09-30 2010-03-11 Schiffsantriebsvorrichtung

Country Status (4)

Country Link
EP (1) EP2484583A4 (de)
CN (1) CN102630207A (de)
ES (1) ES1071369Y (de)
WO (1) WO2011039391A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015088806A1 (en) * 2013-12-10 2015-06-18 Caterpillar Inc. Replaceable nose section for a marine propulsion unit
DE102015226672A1 (de) * 2015-12-23 2017-06-29 Siemens Aktiengesellschaft Propeller für ein Schiff
WO2020044043A1 (en) * 2018-08-30 2020-03-05 Teignbridge Propellers International Limited Blade hub assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108284934A (zh) * 2017-12-29 2018-07-17 中国船舶工业集团公司第七0八研究所 一种叶片可装拆式喷水推进叶轮结构
JP7222531B2 (ja) * 2018-12-28 2023-02-15 ナカシマプロペラ株式会社 船舶用プロペラ
FI130447B (en) * 2020-12-18 2023-09-05 Aker Arctic Tech Oy Propeller
CN113353226B (zh) * 2021-06-16 2022-02-22 合肥恒大江海泵业股份有限公司 一种无轴推进器的叶片安装方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US752670A (en) * 1904-02-23 Propeller
US123274A (en) * 1872-01-30 Improvement in propellers
GB191127295A (en) * 1911-12-05 1912-10-10 Thomas Alma Heathcote Improvements in Propellers for Ships.
GB352782A (en) * 1930-06-04 1931-07-16 Eugen Reintjes A device for securing the blades of ships' propellers
US4930987A (en) * 1989-05-24 1990-06-05 Brad Stahl Marine propeller and hub assembly of plastic
ES1070212Y (es) * 2009-04-27 2009-10-22 Abal Pablo Gonzalez Helice para embarcaciones
US20100189563A1 (en) * 2009-01-27 2010-07-29 Gonzalez Abal Pablo Alfonso Propeller for vessels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015088806A1 (en) * 2013-12-10 2015-06-18 Caterpillar Inc. Replaceable nose section for a marine propulsion unit
DE102015226672A1 (de) * 2015-12-23 2017-06-29 Siemens Aktiengesellschaft Propeller für ein Schiff
WO2020044043A1 (en) * 2018-08-30 2020-03-05 Teignbridge Propellers International Limited Blade hub assembly

Also Published As

Publication number Publication date
ES1071369U (es) 2010-02-18
WO2011039391A1 (es) 2011-04-07
ES1071369Y (es) 2010-05-13
CN102630207A (zh) 2012-08-08
EP2484583A4 (de) 2013-03-13

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