EP0281022B1 - Hélice à pales orientables pour navires - Google Patents

Hélice à pales orientables pour navires Download PDF

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Publication number
EP0281022B1
EP0281022B1 EP19880102841 EP88102841A EP0281022B1 EP 0281022 B1 EP0281022 B1 EP 0281022B1 EP 19880102841 EP19880102841 EP 19880102841 EP 88102841 A EP88102841 A EP 88102841A EP 0281022 B1 EP0281022 B1 EP 0281022B1
Authority
EP
European Patent Office
Prior art keywords
shaft
propeller
watercraft
yoke
strap
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.)
Expired - Lifetime
Application number
EP19880102841
Other languages
German (de)
English (en)
Other versions
EP0281022A1 (fr
Inventor
Peter Müller
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.)
MUELLER, PETER
Original Assignee
Mueller Peter
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 Mueller Peter filed Critical Mueller Peter
Publication of EP0281022A1 publication Critical patent/EP0281022A1/fr
Application granted granted Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary
    • B63H3/04—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable

Definitions

  • the invention relates to an adjustable propeller for a watercraft, with a carrier element arranged on the hull of the watercraft and designed as a hollow body, in which a shaft driven by a first motor arranged in the watercraft and appropriately mounted, a shaft which can be actuated by a second motor and which has a rotating part as well as a part that is movable in the axial direction of the shaft, a rotating sliding coupling and an operatively connected adjusting linkage and a propeller hub designed to accommodate adjustable blades, the adjusting linkage pivotably mounted in the carrier element being arranged with a first lever with the second motor and is operatively connected to the rotary sliding coupling with a second lever.
  • the actuating device which can be actuated by a linear motor that is operatively connected to a power source, is arranged in a support element designed as a hollow body and fastened to the hull of the watercraft and comprises a lever linkage formed from several articulated and correspondingly mounted levers, which has one end connected to the linear motor and the other the other end is operatively connected directly to an adjusting member, rods arranged by the adjusting member in the propeller hub and the propeller blades being actuated.
  • a propeller arrangement for a watercraft is known from EP-A 0 140 097 (D3), in which arrangement the individual propeller blades are fastened to a propeller hub and the propeller hub is arranged on a housing.
  • the housing is arranged by means of correspondingly distributed holding elements on an inner housing formed from a plurality of elements and operatively connected to a motor-driven shaft.
  • the pitch of the propeller blades is adjusted by means of appropriate adjustment devices or manually, this adjustment essentially serves on the one hand to optimally utilize the performance of the motor arranged in the watercraft and on the other hand to improve maneuverability.
  • the invention is based on the adjustable propeller for a watercraft mentioned at the outset, which is based on the task of improving the connection elements of the adjusting linkage with the rotary and sliding coupling arranged therein while maintaining a streamlined design of the support element, even under extreme loads an exact and even power transmission is guaranteed.
  • the second lever of the adjusting linkage is provided at the end facing the shaft with a yoke which, with a bracket articulated thereon, forms a unit that completely encompasses the shaft, and in that the bracket with in the axial direction Shaft-oriented tabs is provided, which are hinged to the axially displaceable part of the rotary sliding coupling.
  • 1 denotes an adjustable propeller which has adjustable propeller blades 2 and a propeller hub 4 driven by a drive shaft 3.
  • the drive point 3 is a drive machine 5 driven and stored in a shaft bearing 6, which is arranged on the downstream side of the variable pitch propeller, but in its vicinity.
  • the pitch of the propeller blades 2 is adjusted by an adjusting linkage 7 which has a two-armed adjusting lever 8, the pivot axis 9 of which is pivotally supported in a support bearing 10.
  • the support bearing 10 is supported on the hull of the watercraft.
  • the adjustment lever 8 has an upper and a lower arm 11, 12, the upper arm 11 being coupled via a joint 13 to a bumper 14 of a linear motor 15 driven by a power source 26, while the lower arm 12 is coupled via a joint 12 ' a rotary slide clutch 16 is connected.
  • This coupling has a non-rotating coupling part 17, which is connected to the lower arm 12 via the joint 12 ', while the rotating coupling part 19 is fastened to the drive shaft 3 and the non-rotating one via radial and axial bearings (only one bearing 18 shown schematically) Part leads.
  • Push rods 20 are supported on the flange 19 'of the rotating coupling part 19, which are guided in the propeller hub 4 and adjust the individual propeller blades 2 at the same time.
  • the rotary-slide coupling 16 and the push rods 20 form the push rod linkage.
  • the adjustable propeller 1 is arranged fixedly below the hull 25 of a watercraft, a hollow support body 21 being fastened to the hull, at the lower end of which the adjustable propeller is mounted.
  • a shaft bearing 6 for supporting the propeller shaft 3 is provided in the support body 21, which is fastened to the support body 21 by means of a support 27.
  • Support 27 can e.g. consist of two V-shaped struts which are attached to two locations of the support body 21.
  • a control rudder 22 is pivotably mounted on the support body 21 on the outflow side by means of hinge joints 24, while the adjusting linkage 7 is installed in the interior of the support body 21.
  • the reference symbols not described in FIG. 2 correspond to those in FIG. 1.
  • the linear motor 15 is e.g.
  • the linear motor 15 which can also be an electrical or pneumatic unit, is mounted in the embodiment according to FIG. 2 below the fuselage 25 in the hollow support body 21, but it would also be possible to design the upper arm 11 of the adjusting lever so that it is in the watercraft protrudes and the linear motor 15 would then lie within the hull 25.
  • variable pitch propeller 1 shows a similar fastening of the variable pitch propeller 1 as shown in FIG. 2, with the difference, however, that the shaft bearing 6 is arranged on the upstream side of the variable pitch propeller 1. However, it is fastened to the inner wall of the support body 21 by the support 27 in the same way as in the embodiment according to FIG. 2. Likewise, the pivot axis 9 of the adjusting lever 8 is supported on the wall of the hollow support body 21.
  • the linear motor 15 is fastened in the interior of the ship's hull 25 by means of a pillow block 28.
  • the support body 21 has a flange 29 with which it is fastened to the fuselage 25 by means of screws 30.
  • a flange 29 In the fuselage 25 itself there is a narrow opening 31 through which the upper arm 11 of the adjusting lever 8 extends.
  • the opening 31 is sealed by a seal 32, e.g. a bellows seal, protected against water ingress.
  • the lower arm 12 of the adjusting lever 8 has at its free end a yoke 36 which engages over the propeller shaft 3.
  • joints 37 are provided, in which a bracket 35 with tabs 38 is mounted.
  • the tabs 38 are connected via joints 39 to the displaceable, non-rotating part 17 of the rotary-sliding coupling 16, while the rotating part 19 is connected to the push rods 20 (not shown).
  • the push rod linkage 16 With regard to the details of the push rod linkage 16, 20, reference is made to the EP application 86117737.6.
  • Fig. 4 it can be seen that three push rods 20 are provided which are attached to the flange 19 'of the rotating part 19.
  • the support body 21 is closed in the area of the shaft bearing 6 by a cover 40, while the propeller hub is covered by a streamlined hood 41.
  • FIG. 5 shows a similar embodiment of the support body 21, with the difference that passages 42 are provided in the hub of the variable pitch propeller, through which passages the engine exhaust gases are derived from engines arranged in the interior of the ship's hull.
  • the hood 41 is omitted here.
  • the engine exhaust gases are conducted through a line 43 into the interior of the support body 21, from where they emerge into the water through the passages 42 of the hub of the variable pitch propeller.
  • variable pitch propellers are characterized by the fact that they have a space-saving Lö display solution.
  • the arrangement of the adjustment rod 7 for the adjustment of the propeller blades 2 makes it possible to choose a narrow and therefore aerodynamic shape of the support body 21, so that the overall resistance of these embodiments is hardly greater than for a propeller with fixed blades.
  • the support body 21 has a dual function here: on the one hand it forms the shaft bracket for supporting the shaft bearing 6 on the ship's hull 25 and on the other hand it accommodates and supports the adjusting linkage 7.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Exhaust Silencers (AREA)
  • Motor Power Transmission Devices (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (4)

1. Hélice à pales (1) orientables pour un navire comprenant un élément de support (21) configuré en corps creux et disposé sur la coque (25) du navire, élément de support dans lequel sont placés un arbre (3), entraîné par un premier moteur prévu dans le navire, et disposé de façon correspondante, un système de tiges de réglage (7) pouvant être actionné par un second moteur (15) et en liaison active avec un accouplement coulissant tournant (16) comportant une pièce tournante (19) ainsi qu'une pièce (17) pouvant coulisser dans le sens axial de l'arbre (3), et un moyeu d'hélice (4) réalisé pour recevoir des pales (2) réglables, le système de tiges de réglage (7) logé de manière pivotante dans l'élément de support (21) étant en liaison active avec le second moteur (15) par un premier levier (8) et avec l'accouplement coulissant tournant (16) par un second levier (12), caractérisée en ce que le second levier (12) du système de tiges de réglage (7) présente une culasse (36) sur l'extrémité en regard de l'arbre (3) qui forme, avec un étrier (35) articulé sur celle-ci, une unité entourant l'arbre (3) sur tout son pourtour, et en ce que l'étrier (35) comporte des languettes (38) orientées dans le sens axial de l'arbre (3), et qui sont articulées sur la pièce (17) pouvant coulisser dans le sens axial de l'accouplement coulissant tournant (16).
2. Hélice à pales orientables suivant la revendication 1, caractérisée en ce que l'étrier (35), sur le côté en regard de la culasse (36), est réalisé pour saisir le bras de culasse à la manière d'une fourche et est en particulier en liaison active, avec la culasse (36) au moyen d'une première articulation (37).
3. Hélice à pales orientables suivant la revendication 1, caractérisée en ce que chaque languette individuelle (38) de l'étrier (35) est reliée par une seconde articulation (39) avec la pièce coulissante (17) de l'accouplement coulissant tournant (16).
4. Hélice à pales orientables suivant la revendication 1 et 2, caractérisée en ce que la première articulation (37) reliant l'étrier (35) à la culasse (36) est placée directement dans la zone d'un palier (6) de l'arbre (3) et le palier (6) dans un support (27) situé en aval de l'élément de support (21).
EP19880102841 1987-03-04 1988-02-25 Hélice à pales orientables pour navires Expired - Lifetime EP0281022B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21653 1987-03-04
US2165387A 1987-03-14 1987-03-14

Publications (2)

Publication Number Publication Date
EP0281022A1 EP0281022A1 (fr) 1988-09-07
EP0281022B1 true EP0281022B1 (fr) 1992-10-28

Family

ID=21805428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880102841 Expired - Lifetime EP0281022B1 (fr) 1987-03-04 1988-02-25 Hélice à pales orientables pour navires

Country Status (4)

Country Link
EP (1) EP0281022B1 (fr)
JP (1) JPS63240492A (fr)
DE (1) DE3875500D1 (fr)
ES (1) ES2035122T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107839864B (zh) * 2017-11-08 2024-03-12 镇江市丹徒区顺发船舶螺旋桨有限公司 一种螺旋桨的保护装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB562845A (en) * 1941-12-26 1944-07-19 Automotive Prod Co Ltd Improvements in or relating to variable pitch propellers for water craft
US3567334A (en) * 1968-09-09 1971-03-02 Michigan Wheel Co Flow-through propeller
CH668046A5 (de) * 1983-09-22 1988-11-30 Peter Mueller Verstellpropeller und antrieb fuer wasserfahrzeuge.
CH666869A5 (de) * 1984-03-16 1988-08-31 Peter Mueller Verstellvorrichtung fuer verstellpropeller von wasserfahrzeugen.

Also Published As

Publication number Publication date
ES2035122T3 (es) 1993-04-16
DE3875500D1 (de) 1992-12-03
EP0281022A1 (fr) 1988-09-07
JPS63240492A (ja) 1988-10-06

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