EP0436131B1 - Bootsantrieb mit einem Verstellpropeller - Google Patents

Bootsantrieb mit einem Verstellpropeller Download PDF

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Publication number
EP0436131B1
EP0436131B1 EP90123162A EP90123162A EP0436131B1 EP 0436131 B1 EP0436131 B1 EP 0436131B1 EP 90123162 A EP90123162 A EP 90123162A EP 90123162 A EP90123162 A EP 90123162A EP 0436131 B1 EP0436131 B1 EP 0436131B1
Authority
EP
European Patent Office
Prior art keywords
hub
propeller shaft
boat
adjusting
shaft
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
EP90123162A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0436131A1 (de
Inventor
Peter Müller
Urs Morgenthaler
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 EP0436131A1 publication Critical patent/EP0436131A1/de
Application granted granted Critical
Publication of EP0436131B1 publication Critical patent/EP0436131B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
    • B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/04—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers
    • F02B61/045—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving propellers for marine engines

Definitions

  • the invention relates to a boat drive with an adjustable propeller, the hub of which can be fastened to a hollow propeller shaft, which is coupled to a drive shaft via a gear, and whose propeller blades are adjustable with adjusting rods guided in the hub, which are connected to an adjusting plunger arranged in the hollow propeller shaft are, the ends of which are led out of the hollow propeller shaft and connected on the one hand to a double-acting lifting cylinder and on the other hand to an actuator, the propeller shaft and the gearbox being mounted in the housing of an outboard motor, a sterndrive or a shaft bracket.
  • a known drive of this type (DE-A-31 18 230) is intended for ship drives or for transverse thruster systems.
  • the adjustment plunger and the adjustment rods are guided inside the hub.
  • a yoke for transmitting the adjustment forces is mounted on the adjustment plunger within the hub. If the variable pitch propeller is to be dismantled for maintenance and repair purposes and then reassembled, complex work is required. Qualified workshops are regularly available for the repair and maintenance of ship drives. The situation is different for boat drives with variable pitch propellers.
  • the actuator for the adjustment plunger is in the hull and is connected to the adjustment plunger via a transmission.
  • the adjustment plunger extends only partially into the hollow propeller shaft and carries radial adjustment rods at its end there, which extend through openings in the hollow propeller shaft into the hub.
  • New constructions (EP-A-02 31 503) have a more compact design with adjusting rods for the propeller blades parallel to the propeller shaft, which improves the stability of the construction and the adjustability of the propeller blades.
  • the actuating drive acts on the adjusting rods led out of the hub via a lever gear arranged outside the housing.
  • assembly or disassembly of the variable pitch propeller is not so easy.
  • the object of the invention is to raise a boat drive with adjustable propeller, in which the adjustable propeller can be assembled or disassembled without great difficulty.
  • a major advantage of the boat drive according to the invention can also be seen in the fact that the actuator, which is designed as a double-acting lifting cylinder, is accommodated in the housing, independently of the bearing of the hollow propeller shaft and the gearbox, the actuating forces from the adjusting plunger through the hollow propeller shaft to the free side of the Hub and from there via the adjustment rods back to the propeller blades.
  • the actuator which is designed as a double-acting lifting cylinder
  • a simple and preferred embodiment of the invention is characterized in that the adjusting rods and the adjusting plunger can be fixed with screw fastenings on an adjusting disk, an adjusting ring or an adjusting yoke. These screw fastenings are accessible from the outside and are therefore easy to operate, so that the hub fastener is also accessible after loosening the screws.
  • the loosening or fastening of the hub on the hollow propeller shaft is simple according to one feature of the invention when the hollow propeller shaft has an abutment for the hub at a distance from the hub-side end and an external thread at the hub-side end, a nut being able to be screwed onto the external thread that engages an associated end face of the hub. After loosening the nut, the hub with the propeller can also be pulled off the hollow propeller shaft.
  • the housing of the double-acting lifting cylinder in the housing generally presents no difficulties. However, the conditions are particularly favorable when the lifting cylinder is accommodated in a detachable attachment of the housing. It is understood that this attachment is aerodynamically designed and adapted to the shape of the housing. After loosening and removing the attachment from the housing, the lifting cylinder is also accessible from the outside. Lines for the pressure medium of the hydraulic cylinder can be laid in the housing and in the attachment, so that an associated pump can be arranged in the hull.
  • Another feature of the invention is to arrange an axial bearing acting on both sides between the lifting cylinder and the adjustment plunger, so that the adjustment plunger arranged within the hollow propeller shaft rotates with this.
  • the axial bearing can accordingly be protected in the housing and / or in the attachment, so that there are no relatively movable parts in the area of the externally accessible connections between the adjusting plunger and adjusting rods. Nevertheless, it is expedient to mount the sealing tappet in the hollow propeller shaft at the hub end and also to seal it.
  • a housing 1 of an outboard motor is indicated in FIG.
  • a drive shaft 2 with a bevel gear 3 is mounted in the housing 1.
  • a bevel gear 4 is supported on a thrust bearing 5 and is seated on a hollow propeller shaft 6 which is mounted in a housing insert 7. Outside the housing insert 7, the propeller shaft 6 has a step 8 as an abutment for a hub 9 of an adjustable propeller.
  • the propeller shaft 6 extends approximately over half the hub length and has at its free end an external thread for a nut 10 which can be screwed thereon and which is supported with the interposition of an annular disk 11 on an associated end face 12 of the hub 9. With the help of the nut 10, the hub 9 can be attached to the propeller shaft 6.
  • An additional anti-rotation lock can be provided.
  • an exhaust duct 13 runs in the housing 1, to which further ducts in the hub 9 connect, so that the exhaust gas can escape on the free side of the hub 9.
  • the path of the exhaust gas is indicated by arrows 14.
  • the propeller blades 16 which are arranged in the associated blade receptacles 15 of the hub 9 so as to be rotatable about radial axes are rotated with the aid of adjusting rods 17 which are guided in the hub 9 and extend parallel to the propeller shaft 6.
  • the construction of the wing receptacles 15 is known per se (EP 02 31 503) and therefore need not be explained in more detail.
  • the free ends of the adjusting rods 17, which are provided with bellows 18 for protection against fouling, have stepped threaded sections 19 which extend through the associated bores of an adjusting disk 20 and are fastened to the adjusting disk 20 with nuts 21.
  • the adjusting disk 20 also has a central bore for a stepped threaded section 22 of an adjusting plunger 23.
  • the threaded section 22 can be fixed on the adjusting disk 20 with a nut 24.
  • the adjustment plunger 23 extends through the hollow propeller shaft beyond the thrust bearing 5. At the hub end of the propeller shaft 6, the adjusting plunger 23 is mounted in a sealed manner at 25. Beyond the thrust bearing 5, the adjustment plunger 23 ends at an axial bearing 26 acting on both sides, on the other side of which the piston rod 27 of a double-acting lifting cylinder 28 is connected.
  • the lifting cylinder 28 is accommodated in an attachment 29 which is screwed onto the housing 1 at 30.
  • the attachment 29 is streamlined and adapted to the shape of the housing 1. Inlets and outlets 34 of the pressure medium for the lifting cylinder 28 are guided through the housing 1 and the attachment 29.
  • the actuating forces of the lifting cylinder are transmitted from the adjusting tappet 23 rotating with the hollow propeller shaft 6 via the adjusting disk 20 and from there via the adjusting rods to the propeller blades 16.
  • variable pitch propeller is to be removed for repair or maintenance purposes, then only the nuts 21, 24 and 10 need to be loosened.
  • the hub 9 can then be pulled off the propeller shaft 6.
  • the housing insert 7 can then also be removed from the propeller shaft 6 because the associated exhaust-gas-carrying openings of the housing 1 are large enough.
  • the lifting cylinder 28 and the subsequent parts are easily accessible after removing the attachment 29.
  • variable pitch propeller is mounted on a shaft bracket 31 which is fastened with screw connections 32 under a boat hull 33.
  • the drive shaft 2 is guided at an angle from the boat hull 33 into the shaft bracket 31.
  • the bevel gears 3, 4 are designed accordingly. Exhaust gas ducts are also possible with this version, but not required and not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Transmission Devices (AREA)
  • Road Paving Machines (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP90123162A 1990-01-04 1990-12-04 Bootsantrieb mit einem Verstellpropeller Expired - Lifetime EP0436131B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4000115A DE4000115A1 (de) 1990-01-04 1990-01-04 Bootsantrieb mit einem verstellpropeller
DE4000115 1990-01-04

Publications (2)

Publication Number Publication Date
EP0436131A1 EP0436131A1 (de) 1991-07-10
EP0436131B1 true EP0436131B1 (de) 1994-03-16

Family

ID=6397606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123162A Expired - Lifetime EP0436131B1 (de) 1990-01-04 1990-12-04 Bootsantrieb mit einem Verstellpropeller

Country Status (6)

Country Link
US (1) US5073134A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0436131B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH03292288A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA2033559A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (2) DE4000115A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO910012L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3393721B2 (ja) * 1994-12-21 2003-04-07 本田技研工業株式会社 船用可変プロペラ
US5997253A (en) * 1998-07-09 1999-12-07 Brunswick Corporation Adjustable pitch propeller
US5967753A (en) * 1998-09-28 1999-10-19 Muller; Peter Controllable-pitch propeller, especially for sport boats and other watercraft
DE19906661C1 (de) * 1999-02-18 2000-06-29 Peter Mueller Verstellpropeller, insbesondere für Motor- und Sportboote
DE19936949C1 (de) 1999-08-05 2001-01-25 Peter Mueller Bootsantrieb mit einem Verstellpropeller
US6261062B1 (en) 2000-01-17 2001-07-17 Brunswick Corporation Actuation system for a controllable pitch propeller
DE10007737C2 (de) * 2000-02-19 2002-04-11 Nasyc Holding S A Verstellpropeller, insbesondere für Motor- und Sportboote
US7699017B1 (en) * 2008-05-12 2010-04-20 Marshall Donald K Personal undersea observation pedal craft
CN102923287A (zh) * 2012-11-13 2013-02-13 江苏科技大学 全回转螺旋桨液压调距机构
CN111038660A (zh) * 2019-12-22 2020-04-21 杭州前进齿轮箱集团股份有限公司 一种用于可调螺旋桨的桨叶转动工装

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704991A (en) * 1953-05-08 1955-03-29 Gustave J Danielson Reversible variable pitch propeller for boats
US2850106A (en) * 1955-10-05 1958-09-02 Swan Aldon Edward Reversible and variable pitch propeller
US3138136A (en) * 1959-05-13 1964-06-23 Harry J Nichols Controllable reversible pitch propeller
US3253659A (en) * 1965-02-02 1966-05-31 Colman J Seman Controllable pitch propeller
US3310118A (en) * 1966-07-13 1967-03-21 Franklin K Smith Controllable pitch boat propeller
DE2308931B2 (de) * 1973-02-23 1978-06-29 J.M. Voith Gmbh, 7920 Heidenheim Schiffsantrieb in Innenbordbauweise mit einem Verstellpropeller
SE429951B (sv) * 1978-07-19 1983-10-10 Volvo Penta Ab Batpropelleranordning
DE3118230A1 (de) * 1981-05-08 1983-01-13 Gebr. Becker Kg, 2000 Wedel Verstellpropeller und einrichtung zur verstellung der fluegel
CH668046A5 (de) * 1983-09-22 1988-11-30 Peter Mueller Verstellpropeller und antrieb fuer wasserfahrzeuge.
US4964822A (en) * 1984-03-16 1990-10-23 Peter Mueller Variable pitch propeller for watercraft
US4810166A (en) * 1987-08-03 1989-03-07 Bird-Johnson Company Controllable pitch marine propeller
US5028210A (en) * 1990-01-05 1991-07-02 The United States Of America As Represented By The Secretary Of The Navy Propeller unit with controlled cyclic and collective blade pitch

Also Published As

Publication number Publication date
US5073134A (en) 1991-12-17
CA2033559A1 (en) 1991-07-05
NO910012D0 (no) 1991-01-03
DE4000115A1 (de) 1991-07-11
NO910012L (no) 1991-07-05
DE4000115C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-12-24
DE59005014D1 (de) 1994-04-21
JPH03292288A (ja) 1991-12-24
EP0436131A1 (de) 1991-07-10

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