WO2013046151A1 - Transmission nautique pour propulsion en nacelle, à dimensions longitudinales réduites - Google Patents

Transmission nautique pour propulsion en nacelle, à dimensions longitudinales réduites Download PDF

Info

Publication number
WO2013046151A1
WO2013046151A1 PCT/IB2012/055161 IB2012055161W WO2013046151A1 WO 2013046151 A1 WO2013046151 A1 WO 2013046151A1 IB 2012055161 W IB2012055161 W IB 2012055161W WO 2013046151 A1 WO2013046151 A1 WO 2013046151A1
Authority
WO
WIPO (PCT)
Prior art keywords
group
transmission
craft
male
motor
Prior art date
Application number
PCT/IB2012/055161
Other languages
English (en)
Inventor
Fabio Buzzi
Original Assignee
Fb Design S.R.L.
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 Fb Design S.R.L. filed Critical Fb Design S.R.L.
Publication of WO2013046151A1 publication Critical patent/WO2013046151A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H5/1252—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters the ability to move being conferred by gearing in transmission between prime mover and propeller and the propulsion unit being other than in a "Z" configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • F16D3/843—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers
    • F16D3/848—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor enclosed covers allowing relative movement of joint parts due to sliding between parts of the cover
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • B63H2005/106—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type with drive shafts of second or further propellers co-axially passing through hub of first propeller, e.g. counter-rotating tandem propellers with co-axial drive shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/125—Arrangements on vessels of propulsion elements directly acting on water of propellers movably mounted with respect to hull, e.g. adjustable in direction, e.g. podded azimuthing thrusters
    • B63H2005/1254—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis
    • B63H2005/1256—Podded azimuthing thrusters, i.e. podded thruster units arranged inboard for rotation about vertical axis with mechanical power transmission to propellers

Definitions

  • the present invention relates to a nautical 5 transmission of the adjustable stem type, or "pod", with reduced overall dimensions.
  • pod transmissions in the nautical sector are partially associable below the bottom of a craft and are in 10 communication by means of a universal joint of variable length, depending on the installation, with a motor drive located inside the craft thereof.
  • Figure 1 is shown an example of the prior art described above showing a motor A, a universal joint B 15 and the steering and prolusion group C.
  • the steering and prolusion group of the adjustable stem type, or "pod” comprises a widened base of support to the external surface of the craft and a stem element on one side connected to the
  • This torpedo element serves as support for the rotation axis, substantially horizontal, of at least one propeller, 25 usually two.
  • a first difference consists in the arrangement of the propellers with respect to the hub case.
  • a first known type provides tractor propellers, that is, the propulsion counter-rotating propellers are facing towards the bow of the craft.
  • the second type is counter-rotating propellers of the thrusting, type.
  • a second difference found in the existing groups is the type of installation of the group that passes through the bottom of the hull.
  • the group is installed by adapting perfectly to the bottom of the hull.
  • the symmetry plane of this "pod" transmission is installed perpendicularly to the bottom thereof .
  • the "pod" transmission is installed vertically, and the symmetry planes of the craft, and of the "pod” transmission, are parallel.
  • fixing of the transmission to the hull occurs thanks to the introduction of a tunnel, that is, a cavity open towards the stern and recessed in relation to the surface otherwise continuous of the bottom, which allows obtaining a horizontal fixing plane .
  • the "pod" transmission group will not include only the aforementioned bevel gears, but also shafts and gears that allow, precisely, a reverse motion.
  • the gearbox group may also be conventionally fixed directly to the motor.
  • the constant velocity joints type find a minor field of application.
  • a craft even if well designed and dimensioned structurally, is still comparable to a beam, having certain own resistance characteristics to bending and torsion.
  • the joint acts as a deformable element and allows, within certain tolerance limits, to overcome without any damages the navigation steps wherein the conditions of motion transmit actions to the hull such as to deform it . It is obvious that the greater the length of the universal joint, the greater, and more serious, will be the effects.
  • JP8207895 describes a transmission according to the preamble of claim 1.
  • this document describes a craft comprising a motor drive located inside the craft, a steering system and propulsion group located below the bottom of said craft, and transmission means of the motion from said motor to said steering system and propulsion group respectively located partially inside and outside of said craft.
  • These transmission means comprising a reverse motion group located inside the craft and a group of bevel gears that transfers motion from said reverse motion group to said wheel house and propulsion group.
  • This transmission does not provide therefore any centering coupling between the motor and transmission nor any grooved connector of motion transmission between the motor and inverter.
  • CA2351225 describes instead a nautical transmission provided with a grooved connector for transmitting motion from the motor to the propellers.
  • this hybrid has a grooved connector, which is only partially housed inside the craft, and that it extends outside thereof towards the propellers.
  • the grooved connector is completely housed inside the craft and connected on the one side to the motor and on the other side to the gearbox.
  • Object of the present invention is that of producing a nautical transmission of the adjustable stem type, or "pod", an alternative to those known and able to solve the aforementioned drawbacks of the prior art in an extremely simple, economical and particularly functional manner.
  • Another object is that of producing a nautical transmission of the adjustable stem type, or "pod”, with reduced overall dimensions.
  • Figure 1 is a view of a nautical transmission of the adjustable stem type, or "pod", according to the prior art
  • Figures 2 and 3 show an example of a nautical transmission of the adjustable stem type, or "pod", according to the present invention
  • Figures 4 and 5 show a second example of a nautical transmission of the adjustable stem type, or "pod", according to the present invention.
  • Figure 6 shows the nautical transmission of Figure 3 in operation.
  • Such nautical transmission 10 is of the adjustable stem type, or "pod", and includes a motor drive 11 located inside the craft, a steering and propulsion group 12 located below the bottom 13 of the craft, and transmission means of motion 14 from the motor 11 to the steering and propulsion group 12 located respectively partially inside and outside of the craft.
  • the transmission means 14 comprise a reverse motion group 15 located inside the craft and a group of bevel gears 16 which transfers the motion from the reverse motion group 15 to the steering and propulsion group 12.
  • the transmission means 14 comprise a male- female coupling 17 of coaxial centering where a female receiving element 18 is arranged at the motor side 11 and a male engagement element 19 is arranged at the side of bevel gears group 16.
  • This male- female coupling centering 17 has a passage axle cavity 20 of a grooved connector 21 of transmission of motion.
  • This grooved connector 21 naturally replaceable with other equivalent means, is oscillating thanks to its toothed ends 22, 23 drawn from a spherical body respectively housed in reception seats 24, 25 drawn from the motor side 11 and bevel gears side group 16.
  • the ends 22, 23 of the grooved connector are respectively housed in reception seats 24, 25 in correspondence from one side of said motor 11 and from another side at the end of the bevel gears group 16 located inside the craft in such a way so that the grooved connector.21 thereof is entirely housed inside said craft.
  • the receiving female element 18 and the engaging male element comprise 19 surface planes orthogonal 26, 27 to the coupling shaft 28 for checking the correct alignment subject to using a temple or calibre element 29.
  • these surface planes orthogonal 26, 27 to the axis of the coupling 28 have substantially the same distance from the axis 29 of the centering male-female coupling 17.
  • the centering male-female coupling 17 comprises elastic rubber rings 30 interposed between the female receiving element 18 and the male engagement element 19 to compensate for small misalignment.
  • the reception seats of these elastic rubber rings 30 are drawn on the surface of the male engaging element 19.
  • the male -female coupling centering 17 is downstream of the motor 11 and upstream of the gearbox group 15.
  • a flexible coupling device 31 is integrated in the receiving seat 24 of the motor 11, of receiving the connector 21 and 22.
  • the reverse group 15 is connected to the motor 11 and the male- female coupling centering 17 is downstream of the latter, upstream of the bevel gears 16.
  • the present invention consists in a transmission system of the "pod" type that allows the connection between the motor and integrated reverse motion group and transmission, or between the motor-gearbox of motion group and transmission group without the use of universal joints or constant velocity joints, by favouring a compact installation of the motor- propulsion system with mass concentration.
  • the motion is transmitted by an oscillating connector, which may be defined "stub" because of the small sizes, the ends of which are drawn from a spherical body.
  • the coupling elements between the aforementioned components include surface planes for checking the correct alignment and between which components are placed rubber elastic rings that enable to absorb the small misalignment angles, which occur during use, due to the reciprocate ⁇ motion of the parts and to the stresses of use thereof.
  • the transmission object of the invention is integrated into the transmission "pod" group.
  • the centering body on the side of the gearbox- transmission group has, on the outside of the male cylindrical body thereof two seats to house a pair of rubber sealing rings, which have the function which will be described later.
  • This centering body moreover, will have an axial cavity to allow the passage of the grooved stub which transmits the motion.
  • the connector or stub is in general shorter than the universal joints of minimum length made to transmit the power and the torque of that motor.
  • This connector or stub is male grooved, because it is made in such a way that it can be engaged into female seats .
  • connection element is oscillating because the grooved and toothed ends which engage, are drawn from a spherical body, in order to be able to rotate .
  • the connector or stub obviously, will be sized for the type of application, with the adoption of the safety factors recommended by good engineering practice and current legislation.
  • the next step consists in coupling the motor with the transmission group.
  • the motor therefore, will be lowered into the machine room through an appropriate suspension system, typically a crane, or a hoist.
  • an appropriate suspension system typically a crane, or a hoist.
  • the coupling and alignment between the two groups consists in engaging the grooved oscillating stub into the female seat arranged for this purpose in the flexible coupling of the motor with the simultaneous insertion of the male centering cylindrical body of the transmission group in the corresponding female body of the motor.
  • the alignment is correct when the surface planes, of which are equipped both centering bodies, are parallel and are located at a preset distance.
  • Such alignment can be carried out in situ through checking of 4 points located in a cross arrangement by- using a calliper, that is, a template of preset length supplied by the manufacturer to the boat builder. Checking is carried out in the area close to the circumference of the two centering bodies that, as previously mentioned, have for convenience the same diameter or similar diameter.
  • a calliper that is, a template of preset length supplied by the manufacturer to the boat builder.
  • Checking is carried out in the area close to the circumference of the two centering bodies that, as previously mentioned, have for convenience the same diameter or similar diameter.
  • the installation is completed by fixing the motor to the "silent-blocks" , that is, to the four rubber pads that support the motor and absorb the vibrations.
  • the motor can finally be released from the crane.
  • a second possible embodiment of the invention is quite similar to the previous, with the difference that the components and the coupling procedure are dislocated to the interface between the gearbox and the transmission. It is not necessary to connect the stub to an elastic element attached to the gearbox, since this function is performed by the flexible coupling, but at the interface between the motor and the gearbox.
  • the invention is able to absorb and neutralise the misalignments caused by the stresses to which the craft is subjected and, with it, the motion-propulsive apparatus thanks to the fact that the installation is not of the rigid type and the stub can rotate within the margins admitted by the total length thereof and the length of the spherical ends .
  • this angle is in the order of 1 to 2 degrees .
  • the difference between the diameter of the hole in the female centering body and the external diameter of the male centering body is such as to allow, on the length of the stub, the rotation, while sealing is ensured by the deformability in compression of the rubber rings, mounted pre-compressed and secured on the internal body .

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Gear Transmission (AREA)
  • Toys (AREA)

Abstract

L'invention concerne une transmission nautique (10) du type à étrave ajustable, ou "nacelle", ladite transmission (10) comportant un entraînement moteur (11) se trouvant à l'intérieur de l'embarcation, un groupe propulseur et système de direction (12) se trouvant sous le fond (13) de ladite embarcation, et des moyens pour la transmission de mouvement (14) depuis ledit moteur (11) jusqu'audit groupe propulseur et système de direction (12) se trouvant respectivement partiellement à l'intérieur et à l'extérieur de ladite embarcation, lesdits moyens de transmission (14) comportant un groupe de mouvement de marche arrière (15) se trouvant à l'intérieur de l'embarcation et un groupe d'engrenages coniques (16) qui transfère le mouvement en provenance dudit groupe de mouvement de marche arrière (15) jusqu'audit groupe propulseur et système de direction (12), lesdits moyens de transmission (14) comportant un accouplement mâle-femelle (17) de centrage coaxial où un élément de réception femelle (18) est arrangé sur le côté du moteur (11) et un élément de mise en prise mâle (19) est arrangé sur le côté du groupe d'engrenages coniques (16), ledit accouplement de centrage mâle-femelle (17) ayant une cavité axiale (20) pour le passage d'un raccord à rainures (21) de transmission de mouvement, ledit raccord à rainures (21) comportant des extrémités dentées (22, 23) tirées en provenance d'un corps sphérique se trouvant respectivement dans des sièges de réception (24, 25) tirés en provenance du côté moteur (11) et du côté du groupe d'engrenages coniques (16).
PCT/IB2012/055161 2011-09-30 2012-09-27 Transmission nautique pour propulsion en nacelle, à dimensions longitudinales réduites WO2013046151A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001774A ITMI20111774A1 (it) 2011-09-30 2011-09-30 Trasmissione nautica del tipo a stelo orientabile, o "pod", a ridotto ingombro longitudinale
ITMI2011A001774 2011-09-30

Publications (1)

Publication Number Publication Date
WO2013046151A1 true WO2013046151A1 (fr) 2013-04-04

Family

ID=44993718

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2012/055161 WO2013046151A1 (fr) 2011-09-30 2012-09-27 Transmission nautique pour propulsion en nacelle, à dimensions longitudinales réduites

Country Status (2)

Country Link
IT (1) ITMI20111774A1 (fr)
WO (1) WO2013046151A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015154544A1 (fr) * 2014-04-07 2015-10-15 深圳市云洲创新科技有限公司 Propulseur vectoriel à hydrojet omnidirectionnel à nacelle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634391A (en) * 1985-06-27 1987-01-06 Brunswick Corporation Engine coupler for stern drive
JPH08207895A (ja) 1995-02-06 1996-08-13 Ishikawajima Harima Heavy Ind Co Ltd 船舶の操舵装置
WO1999041514A1 (fr) * 1998-02-12 1999-08-19 Rockford Powertrain, Inc. Transmission a joint coulissant a systeme d'etancheite
CA2351225A1 (fr) 2000-06-22 2001-12-22 Bombardier Inc. Arbre d'entrainement auquel est fixe un element amortisseur deformable elastique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4634391A (en) * 1985-06-27 1987-01-06 Brunswick Corporation Engine coupler for stern drive
JPH08207895A (ja) 1995-02-06 1996-08-13 Ishikawajima Harima Heavy Ind Co Ltd 船舶の操舵装置
WO1999041514A1 (fr) * 1998-02-12 1999-08-19 Rockford Powertrain, Inc. Transmission a joint coulissant a systeme d'etancheite
CA2351225A1 (fr) 2000-06-22 2001-12-22 Bombardier Inc. Arbre d'entrainement auquel est fixe un element amortisseur deformable elastique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015154544A1 (fr) * 2014-04-07 2015-10-15 深圳市云洲创新科技有限公司 Propulseur vectoriel à hydrojet omnidirectionnel à nacelle

Also Published As

Publication number Publication date
ITMI20111774A1 (it) 2013-03-31

Similar Documents

Publication Publication Date Title
CN109281926B (zh) 一种具有静水推力自平衡功能的减振推力轴承
KR101601418B1 (ko) 선박용 추진장치
CN107108007A (zh) 用于船的紧凑且高推进效率的传动装置和装备有该传动装置的船
KR101606242B1 (ko) 선박용 추진장치
KR102260247B1 (ko) 선박 추진장치의 설치방법
WO2013046151A1 (fr) Transmission nautique pour propulsion en nacelle, à dimensions longitudinales réduites
RU163327U1 (ru) Движитель для транспортного средства
KR102130009B1 (ko) 차량용 드라이브 샤프트
KR102168942B1 (ko) 선박용 추진시스템
KR20030031958A (ko) 전동 기구
KR102334533B1 (ko) 선박 추진장치
CN100486865C (zh) 用于推进系统的联轴器
KR101380651B1 (ko) 선박용 추진장치 및 이를 포함하는 선박
US10393218B2 (en) Viscous damper
KR101601471B1 (ko) 선박용 추진장치
US20200324869A1 (en) A marine propulsion system
KR102260251B1 (ko) 선박 추진장치
KR101542666B1 (ko) 선박용 추진장치
KR102220419B1 (ko) 선박 추진장치
KR20160116228A (ko) 선박용 추진장치
KR102467832B1 (ko) 선박 추진장치
KR101581530B1 (ko) 선박용 추진장치
US7207855B2 (en) Joint
KR20070045585A (ko) 축 결합용 러버 커플링의 진동저감구조
CN109695636A (zh) 一种带缓冲装置的传动轴

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12788273

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12788273

Country of ref document: EP

Kind code of ref document: A1