EP1955945B1 - Vessel with electric motor - Google Patents

Vessel with electric motor Download PDF

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Publication number
EP1955945B1
EP1955945B1 EP08100703A EP08100703A EP1955945B1 EP 1955945 B1 EP1955945 B1 EP 1955945B1 EP 08100703 A EP08100703 A EP 08100703A EP 08100703 A EP08100703 A EP 08100703A EP 1955945 B1 EP1955945 B1 EP 1955945B1
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EP
European Patent Office
Prior art keywords
thrust bearing
motor
stator
hull
rotor
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 - Fee Related
Application number
EP08100703A
Other languages
German (de)
French (fr)
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EP1955945A1 (en
Inventor
Christophe Galmiche
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.)
Converteam Motors SA
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Converteam Motors SA
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Filing date
Publication date
Application filed by Converteam Motors SA filed Critical Converteam Motors SA
Publication of EP1955945A1 publication Critical patent/EP1955945A1/en
Application granted granted Critical
Publication of EP1955945B1 publication Critical patent/EP1955945B1/en
Expired - Fee Related 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
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor

Definitions

  • the shaft line is equipped with a thrust bearing.
  • the latter comprises a rotor connected to the shaft line and a stator rigidly connected to the hull of the ship, the rotor being in axial abutment against the stator by means of sliding elements with a low coefficient of friction.
  • the thrust bearing constitutes an essential element of the propulsion. It is bonded to the hull of the ship, for example by bolting or welding a stator base to the hull.
  • the same shaft line is driven by the electric propulsion motor.
  • the stator of the engine is also linked to the hull of the ship by bolting for the recovery of efforts resulting from the rotation of the engine.
  • the object of the invention is to propose a ship whose space available in the hull is increased, while having a propulsion motor and a thrust bearing.
  • the ship of the figure 1 is a surface vessel comprising a hull 12 having a bottom or carling 14 and a rear end 16.
  • the vessel 10 is a submarine.
  • a mobile saffron 18 is disposed at the rear of the hull.
  • a shaft line 20 extends inside the shell, along the bottom 14. It extends outside the hull in front of the rudder 18 by a propellant propeller 22.
  • the shaft line 20 is carried by support bearings 24 arranged regularly along its length and secured to the bottom 14.
  • the shaft line 20 is connected to an electric propulsion motor 26 and a thrust bearing 28, both secured simultaneously in rotation and axially at the bottom 14 of the hull 12.
  • the electric motor 26 and the thrust bearing 28 are arranged in the beating of the ship, that is to say in the main part of the body of the ship and not in an outgrowth mobile disposed behind or below the hull as a propulsive nacelle commonly referred to as POD.
  • the electric propulsion motor 26 has a rotor 30 secured to the rest of the shaft line 20, for example by a flange 32.
  • the rotor 30 is rotatably mounted relative to a stator 34 constituting the fixed carcass of the engine.
  • the rotor 30 and the stator 34 comprise windings 30A, 34A capable of creating rotating fields and causing rotation of the rotor.
  • the thrust bearing 28 comprises a rotor 40 consisting of a ring forming a stop collar rigidly connected axially to the shaft line 20 and rotatable therewith. It comprises a stator 42 forming a housing including the rotor 40.
  • the rotors 30 and 40 of the electric motor 26 and the thrust bearing 28 respectively have a shaft 43 of common rotation constituted by the shaft of the electric propulsion motor.
  • the rotors are thus monobloc and formed in the same metal block without flange or any other means of connection between the motor and the thrust bearing.
  • the rotor 40 is attached to the shaft 43 by hooping, thus also forming a common rotating shaft.
  • the stator 42 comprises two parallel flanks 44A, 44B crossed by the shaft 43 and between which the rotor 40 is rotatably mounted.
  • the two flanks 44A, 44B are connected to each other rigidly by a base 45.
  • flanks 44A, 44B On their facing faces, the flanks 44A, 44B have sliding bearing pads 46 formed of steel rollers for example in portions of ring or cylindrical distributed around the axis of the shaft 43.
  • Each roller is covered on its face opposite the rotor 40 of a layer of antifriction material such as PTFE or lead or tin antifriction metal forming a sliding layer.
  • the stator 34 of the electric propulsion motor and the stator 42 of the thrust bearing are carried and rigidly connected by a same frame 50 of connection to the hull.
  • This chassis forms a common rigid connection structure of the stators 34 and 42.
  • the stator 34 of the electric motor has at its periphery a flange 52 connecting the frame 50.
  • the connection being provided by screwing or bolting the flange on the chassis with the aid of connecting elements 54.
  • the base 45 of the thrust bearing has a connecting flange 56 which is for example screwed or bolted to the chassis 50 by connecting elements 58.
  • Radial guide bearings are arranged on the shaft line on either side of the electric propulsion motor 26. These bearings are generally formed by plain bearing bearings, but may also be for example ball bearings or bearings. rolls.
  • a first radial bearing 60 is for example disposed between the flange 32 and the rotor of the electric motor. This bearing is generally supported directly by the frame 50.
  • a second and only radial bearing 62 is disposed between the rotor 30 of the electric motor and the rotor 40 of the thrust bearing.
  • This bearing 62 provides a common radial guide for the rotors 30 and 40. It is preferably interposed between one of the flanks 44B of the thrust bearing and the shaft 43. In a variant, it is arranged between one of the flanks 44A and the end of the shaft 43, or it is carried directly by the frame 50 being interposed between the stator 34 of the electric motor and the thrust bearing 28 when it does not have a radial bearing.
  • the thrust bearing is also disposed between the flange 32 and the rotor of the electric motor.
  • the bottom or carlinguage 14 of the ship has axial stops 66 constituted for example of wedges welded to the belly between which is based the frame 50 of the electric motor along its opposite axial ends.
  • wedges 68 of opposite shapes are interposed between the frame 50 and the stops 66 to provide an axial safety support, the propeller thrust 22 being transmitted from the thrust bearing 28 integrated to the electric propulsion motor 26 to the frame 50 of the electric motor, and chassis 50 of the electric motor to the carling 14.
  • the frame 50 rests on resin blocks 70 interposed between the carling 14 of the ship and the frame 50.
  • the thrust bearing 28 is disposed, relative to the electric propulsion motor 26, opposite the propeller 22.
  • the shaft 43 in its section noted 43A through the electric motor 26, has a section greater than that of its section 43B passing through the thrust bearing 28, as shown in FIG. figure 2 .
  • the thrust bearing opposite the propeller no torque has to be transmitted from the rotor 30 to the thrust bearing, while a torque must be transmitted from the rotor 30 to the thrust bearing. 'propeller.
  • the electric propulsion motor 26 with the frame 50 having a weight and a laying surface much greater than the weight and the bearing surface of the bearing-abutment 28, the motor assembly 26 and bearing-abutment 28 integrated can be maintained on the shell by the resin blocks 70 thus facilitating the attachment of the thrust bearing while it must be normally secured by screwing or welding to the hull when it is independent of the engine.
  • the pads 46 of the abutment bearing 28 made of PTFE or equivalent allow, by the same insulating nature of this PTFE material, an electrical insulation of the thrust bearing 28 while allowing a solid mechanical fastening of uninsulated steel of the casing 45, the thrust bearing 28 the motor, the electrical insulation of the thrust bearing being achieved by the PTFE pads or equivalent.
  • This arrangement of the thrust bearing incorporated in the electric propulsion motor where the engine torque is not exercised makes it possible to reduce the diameter of the shaft section 43B to be compared with the shaft section 43A which must transmit the torque. engine, this to offer opportunities for downsizing and the cost of propeller shaft thrust bearing when integrated into the electric propulsion motor.
  • FIG. 3 On the figure 3 is shown an alternative embodiment of a module incorporating the electric propulsion motor and the thrust bearing.
  • the thrust bearing is noted 128 and the rotor of the motor 130.
  • the carcass noted 134 of the engine comprises a frame 136 constituting a support cradle for the rotor of the motor and for the entire thrust bearing.
  • This frame comprises a lower plate 137 and two end walls 138.
  • the wall 138 visible on the figure 3 defines a notch 140 for the passage of the rotor 130 when it is necessary for maintenance reasons to disassemble and move the rotor out of the electric motor.
  • the thrust bearing 128 constitutes a casing connected to the casing 134 of the motor and more specifically to the frame 136 at the level of an end wall 138.
  • the thrust bearing 128 comprises a stator 152 connected to the motor chassis by an intermediate support 154.
  • the rotor of the thrust bearing is not shown but is arranged with respect to the stator as on the figure 2 .
  • the support 154 has a generally U-shaped shape delimiting two struts 155 between which is fixed the stop-stop.
  • the support 154 comprises flanges 156 connecting to the frame 136 by bolts or screws 158.
  • the shape and the structure of the support 154 are adapted to avoid undesirable vibratory problems, among other things by adjusting the stiffness of support 154 especially in the axial direction where the propeller thrust is exerted.
  • the support 154 has connecting flanges of the stator 152 of the abutment bearing by means of bolts or screws 160.
  • the bolts 160 for connecting the stator 152 of the thrust bearing to the support are arranged at the end. end of the legs in the same plane containing the axis of rotation of the rotor of the thrust bearing, as shown in FIG. figure 3 .
  • this removable and removable support 154 is to facilitate the passage of the rotor 130 in the event of maintenance, but also to easily allow to change the support 154 by another modified support since dismountable if vibration problems occur during operation of the ship. Change a removable support 154 is faster and less expensive than modifying the structure of the ship's body which supports the thrust bearing when it is not integrated with the electric propulsion motor.
  • the support 154 is removed and it is integral with the stator 152 of the thrust bearing.
  • the stator 152 of the thrust bearing has a section greater than that of the rotor 130 of the electric propulsion motor and, more specifically, the stator 152 of the thrust bearing has a shape complementary to the notch 140, which allows the passage of the rotor during disassembly operation for maintenance.
  • the chassis of the engine has struts 175 integrally provided to provide bearing-stop support for the connection of the stator-bearing abutment at the top of these legs in a horizontal plane preferably containing the axis of the abutment-abutment .
  • the struts 175 are also optimized to avoid any undesirable vibration problems.
  • the support legs 175 interposed between the stop-stop of the figure 4 and the motor chassis are removable allowing their easy replacement in case of unsuitability due to undesirable vibration problems in operation.
  • Changing the dismantable support legs 175 is faster and less expensive than changing the structure of the ship's bellyboat that supports the thrust bearing when it is not integrated with the electric propulsion motor.
  • the chassis 136 of the electric propulsion motor is connected to the hull of the ship by any appropriate means and forms the common structure of connection of the stators of the engine and the thrust bearing.
  • the struts 155, 175 are dimensioned to avoid the harmful vibration phenomena in operation of the ship.
  • the stiffness of these struts is defined to avoid any resonance of the propulsive shaft line especially in the longitudinal direction.
  • the stiffness of the attachment of the stop-stop can be for example defined by adjustment of the thicknesses of the sheets constituting the chassis (strut) but also by adjustment of the height of the stator attachment to the stop-stop (height of the leg of strength).
  • the struts are removable. These can be easily replaced in case the vibratory behavior of the shaft line is unsatisfactory, which is faster and less expensive than changing the cockling of the ship that supports the thrust bearing when it is not integrated with the electric propulsion motor.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

La présente invention concerne un navire du type comportant :

  • une coque,
  • une ligne d'arbre prolongée par une hélice,
  • un moteur électrique de propulsion disposé dans la coque sur le carlinguage et propre à entraîner la ligne d'arbre, le moteur comportant un stator solidaire de la coque et un rotor en prise avec la ligne d'arbre,
  • un palier-butée comprenant un stator solidaire de la coque et un rotor disposé sur la ligne d'arbre pour assurer une transmission de l'effort axial de l'hélice et de la ligne d'arbre à la coque.
The present invention relates to a vessel of the type comprising:
  • a shell,
  • a tree line extended by a propeller,
  • an electric propulsion motor disposed in the hull on the body and capable of driving the shaft line, the motor comprising a stator secured to the hull and a rotor engaged with the shaft line,
  • a thrust bearing comprising a stator integral with the shell and a rotor disposed on the shaft line to ensure transmission of the axial force of the propeller and the shaft line to the hull.

Il est connu, dans les navires constituant des bâtiments de surface ou de profondeur tels que les sous-marins d'assurer leur propulsion à partir d'une hélice entraînée en rotation par un moteur, notamment un moteur électrique. Afin d'assurer la transmission de l'effort de poussée axiale de l'hélice à la coque ou carlinguage du navire, la ligne d'arbre est équipée d'un palier-butée. Ce dernier comprend un rotor lié à la ligne d'arbre et un stator lié rigidement à la coque du navire, le rotor étant en appui axial contre le stator par l'intermédiaire d'éléments de glissement à faible coefficient de frottement.It is known in ships constituting surface or depth vessels such as submarines to ensure their propulsion from a propeller driven in rotation by an engine, including an electric motor. In order to ensure the transmission of the axial thrust force of the propeller to the hull or carling of the ship, the shaft line is equipped with a thrust bearing. The latter comprises a rotor connected to the shaft line and a stator rigidly connected to the hull of the ship, the rotor being in axial abutment against the stator by means of sliding elements with a low coefficient of friction.

Dans les navires connus, le palier-butée constitue un élément essentiel de la propulsion. Il est lié à la coque du navire, par exemple par boulonnage ou soudage d'une embase du stator à la coque.In known ships, the thrust bearing constitutes an essential element of the propulsion. It is bonded to the hull of the ship, for example by bolting or welding a stator base to the hull.

Par ailleurs, la même ligne d'arbre est entraînée par le moteur électrique de propulsion. Le stator du moteur est également lié à la coque du navire par boulonnage pour la reprise des efforts résultant de la rotation du moteur.Moreover, the same shaft line is driven by the electric propulsion motor. The stator of the engine is also linked to the hull of the ship by bolting for the recovery of efforts resulting from the rotation of the engine.

La présence du palier-butée et du moteur électrique de propulsion dans la coque du navire suivant l'axe de la ligne d'arbre conduit à un encombrement important et limite l'espace disponible dans la coque.The presence of the thrust bearing and the electric propulsion motor in the hull of the ship along the axis of the shaft line leads to a large footprint and limits the space available in the hull.

L'invention a pour but de proposer un navire dont l'espace disponible dans la coque est accru, tout en disposant d'un moteur de propulsion et d'un palier-butée.The object of the invention is to propose a ship whose space available in the hull is increased, while having a propulsion motor and a thrust bearing.

A cet effet, l'invention a pour objet un navire du type précité, caractérisé en ce qu'il comporte :

  • une structure commune du moteur électrique de propulsion pour la liaison rigide des stators du moteur et du palier-butée,
  • des moyens de liaison mécanique à la coque de ladite structure commune de liaison.
For this purpose, the subject of the invention is a vessel of the aforementioned type, characterized in that it comprises:
  • a common structure of the electric propulsion motor for the rigid connection of the stators of the motor and the thrust bearing,
  • mechanical connection means to the shell of said common connecting structure.

Suivant des modes particuliers de réalisation, le navire comporte l'une ou plusieurs des caractéristiques suivantes :

  • ladite structure est un châssis auquel sont fixés suivant l'axe de la ligne d'arbre, les stators du moteur et du palier-butée ;
  • le stator du moteur comporte une carcasse extérieure présentant deux parois d'extrémité opposées suivant l'axe de la ligne d'arbre, et le stator du palier-butée est fixé sur la carcasse suivant une paroi d'extrémité, la carcasse formant la structure de liaison commune aux deux stators ;
  • le stator du palier-butée constitue un carter amovible solidarisé à la carcasse du moteur, au moins partiellement dans une échancrure disposée suivant l'axe de la ligne d'arbre, et l'échancrure a une section supérieure à celle du rotor du moteur ;
  • le moteur est disposé sur la ligne d'arbre entre l'hélice et le palier-butée, et le diamètre de l'arbre de rotation du moteur et du palier-butée du côté du palier-butée par rapport au moteur, est inférieur à celui de l'arbre du côté de l'hélice ;
  • le stator du palier-butée est lié au stator du moteur par des moyens de fixation disposés de part et d'autre de l'axe de la ligne d'arbre sensiblement dans un même plan contenant l'axe de l'arbre des rotors ;
  • la structure de liaison est reliée à la coque par au moins une cale de résine interposée entre la structure de liaison à la coque, et une butée axiale d'appui de la structure de liaison est prévue sur la coque ;
  • le navire comporte un unique palier de guidage radial de la ligne d'arbre entre le rotor du moteur et le rotor du palier-butée ;
  • le palier-butée comporte des patins isolant électriquement le rotor du palier-butée du stator du palier-butée et les moyens de liaison du palier-butée à la structure commune sont dépourvus d'isolant électrique ;
  • les rotors du moteur et du palier-butée comportent un arbre commun dépourvu de bride de liaison intermédiaire disposé entre les deux rotors ; et
  • le stator du moteur comporte un châssis et des jambes de force amovibles interposées entre le châssis du moteur et le stator du palier-butée pour supporter le palier-butée.
According to particular embodiments, the ship has one or more of the following characteristics:
  • said structure is a frame to which are fixed along the axis of the shaft line, the stators of the motor and the thrust bearing;
  • the stator of the motor comprises an outer casing having two opposite end walls along the axis of the shaft line, and the stator of the thrust bearing is fixed on the casing according to an end wall, the carcass forming the structure link common to both stators;
  • the stator of the thrust bearing constitutes a removable housing secured to the motor casing, at least partially in a notch disposed along the axis of the shaft line, and the notch has a section greater than that of the motor rotor;
  • the motor is disposed on the shaft line between the propeller and the thrust bearing, and the diameter of the motor rotation shaft and the thrust bearing on the thrust bearing side relative to the motor is less than that of the shaft on the side of the propeller;
  • the stator of the thrust bearing is connected to the stator of the motor by fastening means disposed on either side of the axis of the shaft line substantially in the same plane containing the axis of the rotor shaft;
  • the connecting structure is connected to the shell by at least one resin shim interposed between the hull connecting structure, and an axial bearing abutment of the connecting structure is provided on the hull;
  • the vessel comprises a single radial guide bearing of the shaft line between the motor rotor and the thrust bearing rotor;
  • the thrust bearing comprises electrically insulating pads the thrust-bearing rotor of the thrust bearing stator and the connecting means of the thrust bearing to the common structure are devoid of electrical insulation;
  • the rotors of the motor and the thrust bearing comprise a common shaft devoid of intermediate connecting flange disposed between the two rotors; and
  • the motor stator comprises a frame and removable struts interposed between the motor frame and the stator of the thrust bearing to support the thrust bearing.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins, sur lesquels :

  • la figure 1 est une vue en coupe longitudinale de l'extrémité arrière d'un navire ;
  • la figure 2 est une vue à plus grande échelle du moteur de propulsion et du palier-butée intégré du navire de la figure 1 ;
  • la figure 3 est une vue en bout d'une variante de réalisation d'un moteur de propulsion et d'un palier-butée intégré au moteur électrique de propulsion;
  • la figure 4 est une vue en bout d'une variante de réalisation du moteur de la figure 3 avec un palier-butée intégré au moteur ; et
  • la figure 5 est une vue identique à celle de la figure 4 d'une variante de réalisation du moteur de la figure 4.
The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the drawings, in which:
  • the figure 1 is a longitudinal sectional view of the rear end of a ship;
  • the figure 2 is a larger-scale view of the propulsion engine and the integrated thrust bearing of the ship of the figure 1 ;
  • the figure 3 is an end view of an alternative embodiment of a propulsion motor and a thrust bearing incorporated in the electric propulsion motor;
  • the figure 4 is an end view of an alternative embodiment of the engine of the figure 3 with a thrust bearing integrated in the motor; and
  • the figure 5 is a view identical to that of the figure 4 of a variant embodiment of the engine of the figure 4 .

Le navire de la figure 1 est un bâtiment de surface comportant une coque 12 présentant un fond ou carlinguage 14 et une extrémité arrière 16. En variante, le navire 10 est un sous-marin.The ship of the figure 1 is a surface vessel comprising a hull 12 having a bottom or carling 14 and a rear end 16. Alternatively, the vessel 10 is a submarine.

Un safran mobile 18 est disposé à l'arrière de la coque. Une ligne d'arbre 20 s'étend à l'intérieur de la coque, le long du fond 14. Elle se prolonge à l'extérieur de la coque en avant du safran 18 par une hélice propulsive 22. La ligne d'arbre 20 est portée par des paliers de support 24 disposés régulièrement suivant sa longueur et solidarisés au fond 14. En outre, la ligne d'arbre 20 est reliée à un moteur électrique de propulsion 26 et à un palier-butée 28, tous deux solidarisés simultanément en rotation et axialement au fond 14 de la coque 12. Le moteur électrique 26 et le palier-butée 28 sont disposés dans le carlinguage du navire, c'est-à-dire dans la partie principale du corps du navire et non pas dans une excroissance mobile disposée en arrière ou au-dessous de la coque comme une nacelle propulsive couramment désignée par POD.A mobile saffron 18 is disposed at the rear of the hull. A shaft line 20 extends inside the shell, along the bottom 14. It extends outside the hull in front of the rudder 18 by a propellant propeller 22. The shaft line 20 is carried by support bearings 24 arranged regularly along its length and secured to the bottom 14. In addition, the shaft line 20 is connected to an electric propulsion motor 26 and a thrust bearing 28, both secured simultaneously in rotation and axially at the bottom 14 of the hull 12. The electric motor 26 and the thrust bearing 28 are arranged in the beating of the ship, that is to say in the main part of the body of the ship and not in an outgrowth mobile disposed behind or below the hull as a propulsive nacelle commonly referred to as POD.

Comme illustré sur la figure 2, le moteur électrique de propulsion 26 présente un rotor 30 solidarisé au reste de la ligne d'arbre 20, par exemple par une bride 32. Le rotor 30 est monté mobile à rotation par rapport à un stator 34 constituant la carcasse fixe du moteur. Le rotor 30 et le stator 34 comportent des bobinages 30A, 34A propres à créer des champs tournants et à provoquer l'entraînement en rotation du rotor.As illustrated on the figure 2 , the electric propulsion motor 26 has a rotor 30 secured to the rest of the shaft line 20, for example by a flange 32. The rotor 30 is rotatably mounted relative to a stator 34 constituting the fixed carcass of the engine. The rotor 30 and the stator 34 comprise windings 30A, 34A capable of creating rotating fields and causing rotation of the rotor.

Le palier-butée 28 comporte un rotor 40 constitué d'une couronne formant un collet butée reliée rigidement axialement à la ligne d'arbre 20 et mobile en rotation avec celle-ci. Il comporte un stator 42 formant une carter incluant le rotor 40. Les rotors 30 et 40 du moteur électrique 26 et du palier-butée 28 respectivement ont un arbre 43 de rotation commun constitué de l'arbre du moteur électrique de propulsion. En général, les rotors sont ainsi monobloc et formés dans un même bloc métallique sans bride ou tout autre moyen de liaison entre le moteur et le palier-butée. En variante, le rotor 40 est rapporté sur l'arbre 43 par frettage, formant ainsi également un arbre de rotation commun.The thrust bearing 28 comprises a rotor 40 consisting of a ring forming a stop collar rigidly connected axially to the shaft line 20 and rotatable therewith. It comprises a stator 42 forming a housing including the rotor 40. The rotors 30 and 40 of the electric motor 26 and the thrust bearing 28 respectively have a shaft 43 of common rotation constituted by the shaft of the electric propulsion motor. In general, the rotors are thus monobloc and formed in the same metal block without flange or any other means of connection between the motor and the thrust bearing. Alternatively, the rotor 40 is attached to the shaft 43 by hooping, thus also forming a common rotating shaft.

Le stator 42 comporte deux flancs parallèles 44A, 44B traversés par l'arbre 43 et entre lesquels le rotor 40 est monté rotatif. Les deux flancs 44A, 44B sont liés l'un à l'autre rigidement par une embase 45.The stator 42 comprises two parallel flanks 44A, 44B crossed by the shaft 43 and between which the rotor 40 is rotatably mounted. The two flanks 44A, 44B are connected to each other rigidly by a base 45.

Sur leurs faces en regard, les flancs 44A, 44B présentent des patins d'appui glissant 46 formés de galets d'acier par exemple en portions de couronne ou cylindriques répartis autour de l'axe de l'arbre 43. Chaque galet est recouvert sur sa face en regard du rotor 40 d'une couche d'un materiau antifriction tel que du PTFE ou métal antifriction au plomb ou étain formant une couche de glissement.On their facing faces, the flanks 44A, 44B have sliding bearing pads 46 formed of steel rollers for example in portions of ring or cylindrical distributed around the axis of the shaft 43. Each roller is covered on its face opposite the rotor 40 of a layer of antifriction material such as PTFE or lead or tin antifriction metal forming a sliding layer.

Selon l'invention, le stator 34 du moteur électrique de propulsion et le stator 42 du palier butée sont portés et liés rigidement par un même châssis 50 de liaison à la coque. Ce châssis forme une structure commune de liaison rigide des stators 34 et 42. Par exemple, le stator 34 du moteur électrique comporte à sa périphérie une bride 52 de liaison sur le châssis 50. La liaison étant assurée par vissage ou boulonnage de la bride sur le châssis à l'aide d'éléments de liaison 54. De même, l'embase 45 du palier-butée présente une bride 56 de liaison qui est par exemple vissée ou boulonnée sur le châssis 50 par des éléments de liaison 58.According to the invention, the stator 34 of the electric propulsion motor and the stator 42 of the thrust bearing are carried and rigidly connected by a same frame 50 of connection to the hull. This chassis forms a common rigid connection structure of the stators 34 and 42. For example, the stator 34 of the electric motor has at its periphery a flange 52 connecting the frame 50. The connection being provided by screwing or bolting the flange on the chassis with the aid of connecting elements 54. Similarly, the base 45 of the thrust bearing has a connecting flange 56 which is for example screwed or bolted to the chassis 50 by connecting elements 58.

Des paliers de guidage radial sont disposés sur la ligne d'arbre de part et d'autre du moteur électrique de propulsion 26. Ces paliers sont généralement formés par des paliers lisses à coussinet, mais peuvent être aussi par exemple des roulements à billes ou à rouleaux. Un premier palier radial 60 est par exemple disposé entre la bride 32 et le rotor du moteur électrique. Ce palier est généralement supporté directement par le châssis 50.Radial guide bearings are arranged on the shaft line on either side of the electric propulsion motor 26. These bearings are generally formed by plain bearing bearings, but may also be for example ball bearings or bearings. rolls. A first radial bearing 60 is for example disposed between the flange 32 and the rotor of the electric motor. This bearing is generally supported directly by the frame 50.

Un second et unique palier radial 62 est disposé entre le rotor 30 du moteur électrique et le rotor 40 du palier butée. Ce palier 62 assure un guidage radial commun pour les rotors 30 et 40. Il est interposé de préférence entre l'un des flancs 44B du palier-butée et l'arbre 43. En variante, il est disposé entre l'un des flancs 44A et l'extrémité de l'arbre 43, ou il est porté directement par le châssis 50 en étant interposé entre le stator 34 du moteur électrique etle palier-butée 28 quand celui-ci ne dispose pas de palier radial. Pour des raisons d'isolation électrique, le palier-butée est aussi disposé entre la bride 32 et le rotor du moteur électrique.A second and only radial bearing 62 is disposed between the rotor 30 of the electric motor and the rotor 40 of the thrust bearing. This bearing 62 provides a common radial guide for the rotors 30 and 40. It is preferably interposed between one of the flanks 44B of the thrust bearing and the shaft 43. In a variant, it is arranged between one of the flanks 44A and the end of the shaft 43, or it is carried directly by the frame 50 being interposed between the stator 34 of the electric motor and the thrust bearing 28 when it does not have a radial bearing. For reasons of electrical insulation, the thrust bearing is also disposed between the flange 32 and the rotor of the electric motor.

Avantageusement, le fond ou carlinguage 14 du navire présente des butées d'arrêt axial 66 constituées par exemple de cales soudées au carlinguage entre lesquelles s'appuie le châssis 50 du moteur électrique suivant ses extrémités axiales opposées. Par exemple, des coins 68 de formes opposées sont interposées entre le châssis 50 et les butées 66 pour assurer un appui axial de sécurité, la poussée d'hélice 22 étant transmise du palier-butée 28 intégré au moteur électrique de propulsion 26 au châssis 50 du moteur électrique, et du châssis 50 du moteur électrique au carlinguage 14.Advantageously, the bottom or carlinguage 14 of the ship has axial stops 66 constituted for example of wedges welded to the belly between which is based the frame 50 of the electric motor along its opposite axial ends. For example, wedges 68 of opposite shapes are interposed between the frame 50 and the stops 66 to provide an axial safety support, the propeller thrust 22 being transmitted from the thrust bearing 28 integrated to the electric propulsion motor 26 to the frame 50 of the electric motor, and chassis 50 of the electric motor to the carling 14.

De préférence, le châssis 50 repose sur des cales de résine 70 interposée entre le carlinguage 14 du navire et le châssis 50.Preferably, the frame 50 rests on resin blocks 70 interposed between the carling 14 of the ship and the frame 50.

De préférence, le palier-butée 28 est disposé, par rapport au moteur électrique de propulsion 26, à l'opposé de l'hélice 22. Ainsi, l'arbre 43, dans son tronçon noté 43A traversant le moteur électrique 26, a une section supérieure à celle de son tronçon 43B traversant le palier-butée 28, comme illustré sur la figure 2. En effet, dans cette disposition de préférence du palier-butée à l'opposé de l'hélice, aucun couple n'a à être transmis du rotor 30 au palier-butée, alors qu'un couple doit être transmis du rotor 30 à l'hélice.Preferably, the thrust bearing 28 is disposed, relative to the electric propulsion motor 26, opposite the propeller 22. Thus, the shaft 43, in its section noted 43A through the electric motor 26, has a section greater than that of its section 43B passing through the thrust bearing 28, as shown in FIG. figure 2 . Indeed, in this arrangement of preferably the thrust bearing opposite the propeller, no torque has to be transmitted from the rotor 30 to the thrust bearing, while a torque must be transmitted from the rotor 30 to the thrust bearing. 'propeller.

On conçoit qu'avec un tel agencement du moteur électrique de propulsion 26 et du palier-butée 28 dans un même ensemble intégré, le moteur et le palier-butée étant fixés sur un même châssis 50, l'espace occupé par le moteur et le palier-butée est réduit, ceux-ci disposant des mêmes moyens 66, 68, 70 de fixation au carlinguage du navire.It is conceivable that with such an arrangement of the electric propulsion motor 26 and the thrust bearing 28 in the same integrated assembly, the motor and the thrust bearing being fixed on the same frame 50, the space occupied by the motor and the Bearing-stop is reduced, these having the same means 66, 68, 70 of attachment to the carling of the ship.

En outre, le moteur électrique de propulsion 26 avec le châssis 50 ayant un poids et une surface de pose très supérieurs au poids et à la surface de pose du palier-butée 28, l'ensemble moteur 26 et palier-butée 28 intégré peut être maintenu sur la coque par les cales de résine 70 facilitant ainsi la fixation du palier-butée alors que celui-ci doit être normalement solidarisé par vissage ou soudage à la coque lorsqu'il est indépendant du moteur.In addition, the electric propulsion motor 26 with the frame 50 having a weight and a laying surface much greater than the weight and the bearing surface of the bearing-abutment 28, the motor assembly 26 and bearing-abutment 28 integrated can be maintained on the shell by the resin blocks 70 thus facilitating the attachment of the thrust bearing while it must be normally secured by screwing or welding to the hull when it is independent of the engine.

Cette phase de montage et de réglage à bord du navire du palier-butée avec le carlinguage et la ligne d'arbre est supprimée quand le palier-butée est intégré au moteur électrique de propulsion.This stage of assembly and adjustment aboard the ship of the thrust bearing with the cockling and the shaft line is removed when the thrust bearing is integrated with the electric propulsion motor.

Classiquement dans un moteur électrique de propulsion, pour éviter la circulation des courants électriques du rotor vers les paliers provoquant une corrosion électrique des paliers entraînant une avarie de ces paliers du moteur électrique, on isole électriquement le dernier palier de la ligne d'arbre, donc le palier du moteur le plus opposé à l'hélice.Conventionally in an electric propulsion motor, to prevent the flow of electric currents from the rotor to the bearings causing electrical corrosion bearings causing damage to these bearings of the electric motor, is electrically insulated the last bearing of the shaft line, so the bearing of the motor the most opposite to the propeller.

Les patins 46 du palier-butée 28 en PTFE ou équivalent permettent par la nature même isolante de ce matériau PTFE une isolation électrique du palier-butée 28 tout en permettant une fixation mécanique solide en acier non isolée du carter 45, du palier-butée 28 au moteur, l'isolation électrique du palier-butée étant réalisée par les patins en PTFE ou équivalent.The pads 46 of the abutment bearing 28 made of PTFE or equivalent allow, by the same insulating nature of this PTFE material, an electrical insulation of the thrust bearing 28 while allowing a solid mechanical fastening of uninsulated steel of the casing 45, the thrust bearing 28 the motor, the electrical insulation of the thrust bearing being achieved by the PTFE pads or equivalent.

Ceci permet donc de placer le palier-butée sur le moteur électrique de propulsion le plus opposé à l'hélice, avec une isolation électrique de ce palier-butée intégré facile à réaliser (technologie PTFE ou équivalent) tout en permettant la fixation rigide de sécurité du carter du palier-butée au châssis moteur avec des boulons en acier par nature non isolés.This makes it possible to place the thrust bearing on the electric propulsion motor that is the most opposite to the propeller, with an electrical insulation of this easy-to-use integrated thrust bearing (PTFE technology or equivalent) while allowing the rigid attachment of safety from the bearing-bearing housing to the motor chassis with non-insulated steel bolts by nature.

Le fait de pouvoir placer le palier-butée sur le moteur électrique de propulsion le plus opposé à l'hélice sans inconvénient d'isolation électrique et de fixation mécanique solide de ce palier-butée situe le palier-butée dans une zone où aucun couple moteur ne s'exerce, contrairement à la solution actuelle où le palier-butée est fixé au carlinguage du navire, donc placé sur la ligne d'arbre de transmission du couple entre le moteur électrique de propulsion et l'hélice.The fact of being able to place the thrust bearing on the electric propulsion motor most opposite to the propeller without the inconvenience of electrical isolation and solid mechanical fastening of this thrust bearing locates the thrust bearing in an area where no driving torque is exerted, unlike the current solution where the thrust bearing is fixed to the beating of the ship, so placed on the torque transmission shaft line between the electric propulsion motor and the propeller.

Cet agencement du palier-butée intégré au moteur électrique de propulsion où le couple moteur ne s'exerce pas permet de réduire le diamètre du tronçon d'arbre 43B à comparer avec le tronçon d'arbre 43A qui doit transmettre le couple moteur, ceci permettant d'offrir des opportunités de réduction de taille et du coût du palier-butée de ligne d'arbre propulsive lorsqu'il est intégré au moteur électrique de propulsion.This arrangement of the thrust bearing incorporated in the electric propulsion motor where the engine torque is not exercised makes it possible to reduce the diameter of the shaft section 43B to be compared with the shaft section 43A which must transmit the torque. engine, this to offer opportunities for downsizing and the cost of propeller shaft thrust bearing when integrated into the electric propulsion motor.

Sur la figure 3 est représentée une variante de réalisation d'un module incorporant le moteur électrique de propulsion et le palier-butée.On the figure 3 is shown an alternative embodiment of a module incorporating the electric propulsion motor and the thrust bearing.

Dans ce mode de réalisation, le palier-butée est noté 128 et le rotor du moteur 130. La carcasse notée 134 du moteur comporte un châssis 136 constituant un berceau de support pour le rotor du moteur et pour l'ensemble du palier-butée. Ce châssis comporte une platine inférieure 137 et deux parois d'extrémité 138. La paroi 138 visible sur la figure 3 délimite une échancrure 140 pour le passage du rotor 130 lorsque l'on a besoin pour des raisons de maintenance de démonter et déplacer le rotor hors du moteur électrique. Le palier-butée 128 constitue un carter lié à la carcasse 134 du moteur et plus précisément au châssis 136 au niveau d'une paroi d'extrémité 138.In this embodiment, the thrust bearing is noted 128 and the rotor of the motor 130. The carcass noted 134 of the engine comprises a frame 136 constituting a support cradle for the rotor of the motor and for the entire thrust bearing. This frame comprises a lower plate 137 and two end walls 138. The wall 138 visible on the figure 3 defines a notch 140 for the passage of the rotor 130 when it is necessary for maintenance reasons to disassemble and move the rotor out of the electric motor. The thrust bearing 128 constitutes a casing connected to the casing 134 of the motor and more specifically to the frame 136 at the level of an end wall 138.

Dans le mode de réalisation envisagé, le palier-butée 128 comporte un stator 152 relié au châssis moteur par un support intermédiaire 154. Le rotor du palier-butée n'est pas représenté mais est agencé par rapport au stator comme sur la figure 2.In the embodiment envisaged, the thrust bearing 128 comprises a stator 152 connected to the motor chassis by an intermediate support 154. The rotor of the thrust bearing is not shown but is arranged with respect to the stator as on the figure 2 .

Le support 154 présente une forme générale en U délimitant deux jambes de force 155 entre lesquelles est fixé le palier-butée. Le support 154 comporte des brides 156 de liaison au châssis 136 par des boulons ou vis 158.The support 154 has a generally U-shaped shape delimiting two struts 155 between which is fixed the stop-stop. The support 154 comprises flanges 156 connecting to the frame 136 by bolts or screws 158.

La forme et la structure du support 154 sont adaptées pour éviter les problèmes vibratoires indésirables, entre autre en ajustant la raideur de support 154 notamment dans la direction axiale où s'exerce la poussée d'hélice.The shape and the structure of the support 154 are adapted to avoid undesirable vibratory problems, among other things by adjusting the stiffness of support 154 especially in the axial direction where the propeller thrust is exerted.

A son extrémité supérieure, le support 154 présente des brides de liaison du stator 152 du palier butée par l'intermédiaire de boulons ou vis 160. De préférence, les boulons 160 de liaison du stator 152 du palier-butée au support sont disposés à l'extrémité des jambes dans un même plan contenant l'axe de rotation du rotor du palier-butée, comme illustré sur la figure 3.At its upper end, the support 154 has connecting flanges of the stator 152 of the abutment bearing by means of bolts or screws 160. Preferably, the bolts 160 for connecting the stator 152 of the thrust bearing to the support are arranged at the end. end of the legs in the same plane containing the axis of rotation of the rotor of the thrust bearing, as shown in FIG. figure 3 .

L'avantage de ce support 154 amovible et démontable est de faciliter le passage du rotor 130 en cas de maintenance, mais aussi de permettre facilement de changer ce support 154 par un autre support modifié puisque démontable si des problèmes vibratoires interviennent pendant l'exploitation du navire. Changer un support 154 démontable est plus rapide et moins coûteux que de modifier la structure du carlinguage navire qui supporte le palier-butée lorsque celui-ci n'est pas intégré au moteur électrique de propulsion.The advantage of this removable and removable support 154 is to facilitate the passage of the rotor 130 in the event of maintenance, but also to easily allow to change the support 154 by another modified support since dismountable if vibration problems occur during operation of the ship. Change a removable support 154 is faster and less expensive than modifying the structure of the ship's body which supports the thrust bearing when it is not integrated with the electric propulsion motor.

Dans la variante de réalisation illustrée sur la figure 4, le support 154 est supprimé et celui-ci est venu de matière avec le stator 152 du palier butée. Ainsi, le stator 152 du palier butée présente une section supérieure à celle du rotor 130 du moteur électrique de propulsion et, plus précisément, le stator 152 du palier butée présente une forme complémentaire à l'échancrure 140, laquelle permet le passage du rotor lors d'opération de démontage pour maintenance. Ainsi, le châssis du moteur présente des jambes de force 175 venues de matière assurant le support du palier-butée permettant la liaison du stator du palier-butée au sommet de ces jambes dans un plan horizontal de préférence contenant l'axe du palier-butée. A la conception, les jambes de force 175 sont aussi optimisées afin d'éviter tout problème vibratoire indésirable.In the embodiment variant illustrated on the figure 4 , the support 154 is removed and it is integral with the stator 152 of the thrust bearing. Thus, the stator 152 of the thrust bearing has a section greater than that of the rotor 130 of the electric propulsion motor and, more specifically, the stator 152 of the thrust bearing has a shape complementary to the notch 140, which allows the passage of the rotor during disassembly operation for maintenance. Thus, the chassis of the engine has struts 175 integrally provided to provide bearing-stop support for the connection of the stator-bearing abutment at the top of these legs in a horizontal plane preferably containing the axis of the abutment-abutment . At design, the struts 175 are also optimized to avoid any undesirable vibration problems.

Dans le mode de réalisation de la figure 5, les jambes de support 175 interposées entre le palier-butée de la figure 4 et le châssis du moteur sont amovibles permettant leur remplacement aisé en cas d'inadaptation suite à des problèmes vibratoires indésirables en exploitation. Changer les jambes de support 175 démontables est plus rapide et moins coûteux que de modifier la structure du carlinguage navire qui supporte le palier-butée lorsque celui-ci n'est pas intégré au moteur électrique de propulsion.In the embodiment of the figure 5 , the support legs 175 interposed between the stop-stop of the figure 4 and the motor chassis are removable allowing their easy replacement in case of unsuitability due to undesirable vibration problems in operation. Changing the dismantable support legs 175 is faster and less expensive than changing the structure of the ship's bellyboat that supports the thrust bearing when it is not integrated with the electric propulsion motor.

Dans le mode de réalisation des figures 3 à 5, le châssis 136 du moteur électrique de propulsion est lié à la coque du navire par tout moyen approprié et forme la structure commune de liaison des stators du moteur et du palier-butée.In the embodiment of Figures 3 to 5 , the chassis 136 of the electric propulsion motor is connected to the hull of the ship by any appropriate means and forms the common structure of connection of the stators of the engine and the thrust bearing.

Les jambes de force 155, 175 sont dimensionnées afin d'éviter les phénomènes vibratoires néfastes en exploitation du navire. Ainsi, par exemple, la raideur de ces jambes de force est définie pour éviter toute résonance de la ligne d'arbres propulsive notamment dans la direction longitudinale. La raideur de la fixation du palier-butée peut être par exemple définie par ajustement des épaisseurs des tôles constituant le châssis (jambe de force) mais également par ajustement de la hauteur de la fixation du stator au palier-butée (hauteur de la jambe de force).The struts 155, 175 are dimensioned to avoid the harmful vibration phenomena in operation of the ship. Thus, for example, the stiffness of these struts is defined to avoid any resonance of the propulsive shaft line especially in the longitudinal direction. The stiffness of the attachment of the stop-stop can be for example defined by adjustment of the thicknesses of the sheets constituting the chassis (strut) but also by adjustment of the height of the stator attachment to the stop-stop (height of the leg of strength).

Dans le cas des figures 3 et 5, les jambes de force sont amovibles. Celles-ci peuvent être facilement remplacées au cas où le comportement vibratoire de la ligne d'arbre est insatisfaisant, ce qui est plus rapide et moins coûteux que de modifier le carlinguage du navire qui supporte le palier-butée lorsque celui-ci n'est pas intégré au moteur électrique de propulsion.In the case of figures 3 and 5 , the struts are removable. These can be easily replaced in case the vibratory behavior of the shaft line is unsatisfactory, which is faster and less expensive than changing the cockling of the ship that supports the thrust bearing when it is not integrated with the electric propulsion motor.

Claims (11)

  1. A vessel (10) including:
    - a hull (12),
    - a shaft line (20) extended by a screw (22),
    - an electric propulsion motor (26) arranged in the hull (12) on the keelson (14) and suitable for driving the shaft line (20), the motor including a stator (34) integral with the hull (12) and a rotor (30) in engagement with the shaft line (20),
    - a thrust bearing (28) comprising a stator (42; 152) integral with the hull (12) and a rotor (40) arranged on the shaft line (20) in order to transmit the axial effort of the screw (22) and of the shaft line (20) to the hull (12), characterized in that it includes:
    - a common structure (50; 136) of the electric propulsion motor (26) for the rigid connection of the stators (34, 42; 152) of the motor (26) and of the thrust bearing (28),
    - mechanical connection means (66, 68, 70) for connection of said common connecting structure (50) to the hull (12).
  2. A vessel according to claim 1, characterized in that said structure is an underframe (50) to which the stators (34, 42; 152) of the motor (26) and of the thrust bearing (28) are fixed along the axis of the shaft line (20).
  3. A vessel according to claim 1, characterized in that the stator (34) of the motor (26) has an outer body (134) having two opposed end walls (138) along the axis of the shaft line (20), and in that the stator (152) of the thrust bearing is fixed on to the body (134) at an end wall (138), the body (136) forming the connecting structure common to the two stators (34, 42).
  4. A vessel according to claim 3, characterized in that the stator (42) of the thrust bearing constitutes a removable casing rigidly connected to the body of the motor, at least partially in a notch (140) arranged along the axis of the shaft line, and in that the notch (140) has a cross-section greater than that of the rotor of the motor.
  5. A vessel according to any one of the preceding claims, characterized in that the motor (26) is arranged on the shaft line (20) between the screw (22) and the thrust bearing (28) and in that the diameter of the rotation shaft (43) of the motor (26) and of the thrust bearing (28) on the thrust bearing (28) side relative to the motor (26) is less than that of the shaft (43) on the screw (22) side.
  6. A vessel according t:o any one of the preceding claims, characterized in that the stator (42) of the thrust bearing (28) is attached to the stator (34) of the motor (26) by fixing means (160) arranged on each side of the axis of the shaft line (20) substantially in the same plane containing the axis of the shaft (43) of the rotors (30, 40).
  7. A vessel according to any one of the preceding claims, characterized in that the connecting structure (50) is connected to the hull (12) by at least one resin block (70) interposed between the connecting structure (50) and the hull (12), and in that an axial support abutment (66) for supporting the connecting structure is provided on the hull (12).
  8. A vessel according to any one of the preceding claims, characterized in that it includes a single bearing (62) for radial guidance of the shaft line (20) between the rotor (30) of the motor and the rotor (40) of the thrust bearing.
  9. A vessel according to any one of the preceding claims, characterized in that the thrust bearing (28) includes runners (46) electrically insulating the rotor (40) of the thrust bearing from the stator (42) of the thrust bearing and the connecting means (56, 58) for connecting the thrust bearing (28) to the common structure (50; 136) are devoid of electrical insulation.
  10. A vessel according to any one of the preceding claims, characterized in that the rotors (30, 40) of the motor (26) and of the thrust bearing (28) include a common shaft (43) devoid of an intermediate connecting flange and arranged between the two rotors (30, 40).
  11. A vessel according to any one of the preceding claims, characterized in that the stator (42) of the motor includes an underframe (136) and removable struts (155, 175) interposed between the underframe (136) of the motor and the stators (152) of the thrust bearing (128) in order to support the thrust bearing (128).
EP08100703A 2007-01-23 2008-01-21 Vessel with electric motor Expired - Fee Related EP1955945B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0700460A FR2911577B1 (en) 2007-01-23 2007-01-23 SHIP WITH ELECTRIC MOTOR.

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EP1955945A1 EP1955945A1 (en) 2008-08-13
EP1955945B1 true EP1955945B1 (en) 2012-02-01

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EP (1) EP1955945B1 (en)
KR (1) KR101442251B1 (en)
FR (1) FR2911577B1 (en)

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Publication number Priority date Publication date Assignee Title
CN106089871A (en) * 2016-08-10 2016-11-09 周海梅 A kind of fastening apparatus for fixing equipment
CN106194913B (en) * 2016-08-10 2018-09-28 泰州市美斯顿机械制造有限公司 A kind of clamp device for fixed equipment
CN106194917A (en) * 2016-08-10 2016-12-07 周海梅 A kind of fixing equipment and the adjustable fastening assembly of speed
CN106194915A (en) * 2016-08-10 2016-12-07 周海梅 A kind of fastening structure of fixing equipment
CN106194914B (en) * 2016-08-10 2018-08-31 台州市黄岩裕盛聚酯模具厂 A kind of fastening assembly of fixed equipment and anti-overtravel
CN106246654B (en) * 2016-08-10 2018-12-04 泰州市海星环保设备安装有限公司 A kind of fastening assembly for fixed equipment

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Publication number Priority date Publication date Assignee Title
GB301374A (en) * 1927-11-28 1929-03-28 Fried. Krupp Germaniawerft Aktiengesellschaft
DE3628385A1 (en) * 1986-08-25 1988-03-10 Tacke Kg F Marine engine layout
DE19623914C2 (en) * 1995-10-04 1998-11-12 Flender A F & Co Ship propulsion with a prime mover and a directly driven propeller shaft
JP3486405B2 (en) * 2001-08-10 2004-01-13 三菱重工業株式会社 Rocking device

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KR101442251B1 (en) 2014-09-23
EP1955945A1 (en) 2008-08-13
KR20080069552A (en) 2008-07-28
FR2911577B1 (en) 2009-04-24
FR2911577A1 (en) 2008-07-25

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