EP0070294A1 - Device for mounting a propulsing unit on a floating vehicle - Google Patents

Device for mounting a propulsing unit on a floating vehicle

Info

Publication number
EP0070294A1
EP0070294A1 EP19820900367 EP82900367A EP0070294A1 EP 0070294 A1 EP0070294 A1 EP 0070294A1 EP 19820900367 EP19820900367 EP 19820900367 EP 82900367 A EP82900367 A EP 82900367A EP 0070294 A1 EP0070294 A1 EP 0070294A1
Authority
EP
European Patent Office
Prior art keywords
propellant
floating vehicle
articulation
mounting
mounting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19820900367
Other languages
German (de)
French (fr)
Inventor
René Henri JEANSON
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.)
Valeo SE
Original Assignee
Valeo SE
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 Valeo SE filed Critical Valeo SE
Publication of EP0070294A1 publication Critical patent/EP0070294A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/02—Mounting of propulsion units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/08—Means enabling movement of the position of the propulsion element, e.g. for trim, tilt or steering; Control of trim or tilt
    • B63H20/10—Means enabling trim or tilt, or lifting of the propulsion element when an obstruction is hit; Control of trim or tilt
    • 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
    • B63H21/14—Use of propulsion power plant or units on vessels the vessels being motor-driven relating to internal-combustion engines
    • 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
    • B63H21/30—Mounting of propulsion plant or unit, e.g. for anti-vibration purposes

Definitions

  • the invention relates to a device for mounting a propellant which can, for example, be integrated in a cabin-engine-propellant block which can be mounted and dismantled at will on a floating vehicle.
  • the present invention also relates to a floating vehicle provided with such a device.
  • the shocks can be transmitted to the lifting device and consequently damage the latter.
  • the present invention relates to a device for mounting a propellant provided with safety devices making it possible to withstand moderate or violent shocks.
  • the device for mounting the propellant on a floating vehicle in which at least one lifting cylinder is connected to the floating vehicle and to the propellant by connection means comprising at least one articulation, is in particular characterized in that said articulation includes an axial safety pin intended to break in the event of a violent impact on the propellant.
  • another safety device can also be provided and is constituted by at least one damping device arranged at one end of the jack.
  • This damping device is intended, on the one hand, to absorb the vibrations of the propeller propeller, on the other hand, absorb moderate shocks, avoiding that the axial safety pin is damaged in this case.
  • another safety device can be used in place of or in addition to all or part of the above and comprises a valve arranged in the hydraulic circuit of the lifting cylinder and which makes it possible to absorb shocks to which the propellant can be subjected by evacuation of the hydraulic fluid to a tank.
  • the safety devices provided for the lifting cylinder make it possible in particular to absorb shocks such as: landing on a mud bank, more or less violent encounter with obstacles (rocks, wrecks, etc ).
  • FIG. 1 is an elevational view in partial section of a cabin engine-propeller unit comprising the safety devices according to the invention
  • - Figure 2 is a sectional view showing in detail the lifting cylinder and the damping device, the hydraulic circuit of the lifting cylinder being shown schematically;
  • FIG. 3 is a view of the propellant joint, in section along line III-III of Figure 1.
  • the invention is applied to a propulsion cabin-engine block 1 comprising an engine 10, a cabin 11 and a propellant designated as a whole by 12.
  • This block is mounted on a floating vehicle 13 by a hinge pin 14 substantially horizontal and disposed at the front of the block and by a jack 17 substantially vertical rise and fall disposed at the back of the block.
  • the jack 17 has an articulation point 15 on the floating vehicle 13 and an articulation point 16 arranged under the cabin 11.
  • a jack 18 for raising the propellant 12 is mounted articulated on the latter at the articulation point 19 and is articulated on the block 1 at 20.
  • the articulation point 20 is made integral with the block 1 by a damping device 21.
  • the height of the propellant 12 in the water is adjusted (either in advance or in use) by the jack 17 which allows the whole block to rise and fall.
  • the jack 18, in addition to its role of raising the propellant, here has the function of keeping the axis 22 of the propellant substantially horizontal.
  • Safety devices are associated with the lifting cylinder 18 and are described below.
  • the jack 18 comprises a body 40 and a piston 41 having a rod 42 terminated by a tab 43 bored at 43A ( Figures 2 and 3).
  • the articulation 19 between, the actuator 18 and the propellant 12 is provided by a swiveling connection 44 (FIG. 3), the female part of which is a ring 45 machined in the form of a sphere on its internal face.
  • the ring 45 is retained axially in the bore 43A of the tab 43 by a shoulder 46 and a circlip 47.
  • the male part of the swiveling connection 44 is a core 48 having a spherical shape complementary to the machining of the ring 45.
  • This spherical core 48 is diametrically bored at 48A and comprises in this bore a second core 49 of limited cylindrical shape by two horizontal faces 50.
  • This cylindrical core 49 is itself axially bored at 49A.
  • the reamed tab 43 is housed in a yoke formed by two branches 51 and 52 secured to the propellant 12 and arranged on the front face thereof.
  • the branches 51 and 52 receive two annular parts 53 and 54.
  • Two cylindrical cores 55 and 56 are housed in the parts 53 and 54. These cores 55 and 56 are bored axially at 55A and 56A.
  • a pin 57 is fitted into the bores 49A, 55A and 56A of the cores 49, 55 and 56. This assembly is held axially at one end by the shoulder 58 of the core 55 and at the other end by a ring 59.
  • the pin 57 is intended to break in the event of a violent impact on the propellant 12.
  • the set of cores 49, 55 and 56 and of the pin 57 ensures the connection between the jack 18 and the propellant 12. Also, it is important that this set of parts 49, 55, 56 and 57 is extremely rigid. Indeed, ⁇ ans the assumption that a slight geu would remain between the pin 57 e ⁇ ; the cores 49, 55 and 56, all of these parts would wear out by dulling. This matting would accentuate the game in question. This would transform the pin's shear strength into a much lower flexural strength. This would cause untimely and premature destruction of this pin.
  • either the hot technique or the cold technique is used to fit this pin 57 into the bores 49A, 55A, 56A of the cores 49, 55, 56.
  • the hot technique we can apply for example boiling oil to the cores 49, 55 and 56, then press the pin 57 and compress the whole axially during the cooling of the parts 49, 55 and 56.
  • liquid nitrogen is applied, for example, to pin 57 and it is fitted into parts 49, 55 and 56.
  • the assembly is also compressed while the pin returns to temperature ambient.
  • the faces 50 of the core 49 are made extremely integral with the faces of the cores 55 and 56.
  • the assembly thus obtained forms an integral block, and any matting effect is thus avoided.
  • the central pin 57 works only in shear. Its resistance is calculated so that it yields to a shock greater than a predetermined value. This prevents damage to the actuator 18 and / or to the propellant 12 if the latter comes into contact with a particularly resistant obstacle during the movement of the floating object.
  • a second safety device consisting of a damping device 21.
  • the damping device 21 comprises a body 60 of generally cylindrical shape which is axially bored at 60A. At each of its ends, this body 60 has two cavities 61 and 62 in which are housed two elastomer blocks 63 and 64. These elastomer blocks are also bored along their axis.
  • a rod 65 comprising a tab 66 passes through the assembly formed by the body 60 and the elastomer blocks 63 and 64. The tab 66 is articulated at 66A in a yoke 67 of the body 40 of the jack 18.
  • the rod 65 is provided with two trays 70 and 71 which are integral with it and which come to take support on the outside of the elastomer blocks 63 and 64.
  • This set constitutes a shock absorber capable of:
  • a third safety device is associated with the jack 18 and consists of a valve 73 arranged in the hydraulic circuit 72 of the lifting jack 18 (FIG. 2).
  • This circuit shown diagrammatically in FIG. 2, comprises a reservoir 74 of hydraulic liquid, a pump 75 and a four-way distributor 76. The whole acts in cooperation to move the piston 41 in the cprps 40 of the jack 18 and to block the piston 41 in any desired position.
  • the valve 73 makes it possible to gradually absorb the shocks on the propellant 12 (in the event of landing on a mud bank for example). To this end, it is calibrated at a predetermined pressure level to allow possible decompression of the jack 18. This valve 73 causes the excess hydraulic fluid to return to the reservoir 74.
  • the reservoir 74 (FIG. 1) is arranged under the damping device 21.
  • the safety devices namely the pin 57, the damper 21 and the valve 73, are arranged and adjusted so that all of the shocks that the thruster 12 can undergo is absorbed without damage to the latter and to the jack 18.
  • the safety pin 57 gives way, thus releasing the propellant 12.
  • the valve 73 comes into action.
  • the shock absorber 21 absorbs much weaker and brief shocks.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

Dispositif de montage d'un propulseur (12) sur un vehicule flottant (13), dans lequel au moins un verin de relevage (18) du propulseur est relie au vehicule flottant et au propulseur par des moyens de liaison comportant au moins une articulation (19), caracterise en ce que ladite articulation (19) comporte une goupille axiale de securite destinee a casser en cas de choc violent sur le propulseur (12) L'invention concerne egalement un vehicule flottant muni d'un tel dispositif Application notamment aux dragueurs.Device for mounting a propellant (12) on a floating vehicle (13), in which at least one lifting cylinder (18) of the propellant is connected to the floating vehicle and to the propellant by connection means comprising at least one articulation ( 19), characterized in that said articulation (19) comprises an axial safety pin intended to break in the event of a violent impact on the propellant (12) The invention also relates to a floating vehicle provided with such a device Application in particular to dredgers .

Description

"Dispositif de montage d'un propulseur sur véhicule flottant" "Device for mounting a thruster on a floating vehicle"
L'invention concerne un dispositif de montage d'un propulseur pouvant, par exemple, être intégré dans un bloc cabine-moteur-propulεeur montable et démontable à volonté sur un véhicule flottant.The invention relates to a device for mounting a propellant which can, for example, be integrated in a cabin-engine-propellant block which can be mounted and dismantled at will on a floating vehicle.
La présente invention concerne également un véhicule flottant muni d'un tel dispositif.The present invention also relates to a floating vehicle provided with such a device.
Lorsque l'on utilise un propulseur dont l'axe de propulsion est surbaissé par rapport au fond de la coque d'un bateau, ce propulseur risque d'être soumis à des chocs, en particulier lors de l'utilisation du bateau comme dragueur.When using a propellant whose propulsion axis is lowered relative to the bottom of the hull of a boat, this propellant risks being subjected to shocks, in particular when using the boat as a dredger.
De plus, lorsque le propulseur est relevable à volonté, par exemple par un vérin, les chocs peuvent être transmis au dispositif de relevage et endommager en conséquence celui-ci.In addition, when the propellant can be raised at will, for example by a jack, the shocks can be transmitted to the lifting device and consequently damage the latter.
La présente invention vise un dispositif de montage d'un propulseur muni de dispositifs de sécurité permettant d'encaisser des chocs modérés ou violents. Suivant l'invention, le dispositif de montage du propulseur sur un véhicule flottant, dans lequel au moins un vérin de relevage est relié au véhicule flottant et au propulseur par des moyens de liaison comportant au moins une articulation, est notamment caractérisé en ce que ladite articulation comporte une goupille axiale de sécurité destinée à casser en cas de choc violent sur le propulseur.The present invention relates to a device for mounting a propellant provided with safety devices making it possible to withstand moderate or violent shocks. According to the invention, the device for mounting the propellant on a floating vehicle, in which at least one lifting cylinder is connected to the floating vehicle and to the propellant by connection means comprising at least one articulation, is in particular characterized in that said articulation includes an axial safety pin intended to break in the event of a violent impact on the propellant.
Suivant une autre caractéristique de l'invention, un autre dispositif de sécurité peut également être prévu et est constitué par au moins un dispositif amortisseur disposé à une extrémité du vérin. Ce dispositif amortisseur est destiné, d'une part, à absorber les vibrations de l'hélice du propulseur, d' autre part, à absorber des chocs modérés, en évitant que la goupille axiale de sécurité ne soit endommagée dans ce cas. Suivant une autre caractéristique de l'invention, un autre dispositif de sécurité peut être utilisé à la place ou en plus de tout ou partie des précédents et comporte une soupape disposée dans le circuit hydraulique du vérin de relevage et qui permet d'amortir les chocs auxquels le propulseur peut être soumis par évacuation du fluide hydraulique vers un réservoir.According to another characteristic of the invention, another safety device can also be provided and is constituted by at least one damping device arranged at one end of the jack. This damping device is intended, on the one hand, to absorb the vibrations of the propeller propeller, on the other hand, absorb moderate shocks, avoiding that the axial safety pin is damaged in this case. According to another characteristic of the invention, another safety device can be used in place of or in addition to all or part of the above and comprises a valve arranged in the hydraulic circuit of the lifting cylinder and which makes it possible to absorb shocks to which the propellant can be subjected by evacuation of the hydraulic fluid to a tank.
Les dispositifs de sécurité prévus pour le vérin de relevage permettent notamment d'encaisser les chocs tels que: atterrissage sur un banc de boue, rencontre plus ou moins violente avec des obstacles (rochers, épaves, etc...)The safety devices provided for the lifting cylinder make it possible in particular to absorb shocks such as: landing on a mud bank, more or less violent encounter with obstacles (rocks, wrecks, etc ...)
Les caractéristiques et avantages de la présente invention ressortiront de la description qui va suivre, à titre d'exemple, en référence aux dessins annexés dans lesquels:The characteristics and advantages of the present invention will emerge from the description which follows, by way of example, with reference to the appended drawings in which:
- la figure 1 est une vue en élévation et en coupe partielle d'un bloc cabine-moteur-propulseur comportant les dispositifs de sécurité selon l'invention; - la figure 2 est une vue en coupe montrant en détail le vérin de relevage et le dispositif amortisseur, le circuit hydraulique du vérin de relevage étant représenté de façon schématique;- Figure 1 is an elevational view in partial section of a cabin engine-propeller unit comprising the safety devices according to the invention; - Figure 2 is a sectional view showing in detail the lifting cylinder and the damping device, the hydraulic circuit of the lifting cylinder being shown schematically;
- la figure 3 est une vue de l'articulation vérinpropulseur, en coupe selon la ligne III-III de la figure 1.- Figure 3 is a view of the propellant joint, in section along line III-III of Figure 1.
Suivant la forme de réalisation choisie et représentée à la figure 1 , à titre d ' exemple non limitatif , l' invention est appliquée à un bloc cabine-moteurpropulseur 1 comportant un moteur 10, une cabine 11 et un propulseur désigné dans son ensemble par 12. Ce bloc est monté sur un véhicule flottant 13 par un axe d'articulation 14 sensiblement horizontal et disposé à l'avant du bloc et par un vérin 17 de montée et de baisse sensiblement vertical disposé à l'arrière du bloc. Le vérin 17 a un point d'articulation 15 sur le véhicule flottant 13 et un point d'articulation 16 disposé sous la cabine 11.According to the embodiment chosen and represented in FIG. 1, by way of nonlimiting example, the invention is applied to a propulsion cabin-engine block 1 comprising an engine 10, a cabin 11 and a propellant designated as a whole by 12. This block is mounted on a floating vehicle 13 by a hinge pin 14 substantially horizontal and disposed at the front of the block and by a jack 17 substantially vertical rise and fall disposed at the back of the block. The jack 17 has an articulation point 15 on the floating vehicle 13 and an articulation point 16 arranged under the cabin 11.
Un vérin 18 de relevage du propulseur 12 est monté articulé sur ce dernier au point d'articulation 19 et est articulé sur le bloc 1 en 20. Le point d' articulation 20 est rendu solidaire du bloc 1 par un dispositif amortisseur 21.A jack 18 for raising the propellant 12 is mounted articulated on the latter at the articulation point 19 and is articulated on the block 1 at 20. The articulation point 20 is made integral with the block 1 by a damping device 21.
La hauteur du propulseur 12 dans l'eau est réglée (soit d'avance, soit en cours d'utilisation) par le vérin 17 qui permet la montée et la baisse de l'ensemble du bloc. Le vérin 18, outre son rôle de relevage du propulseur, a ici pour fonction de maintenir l'axe 22 du propulseur sensiblement horizontal. Des dispositifs de sécurité sont associés au vérin de relevage 18 et sont décrits ci-après.The height of the propellant 12 in the water is adjusted (either in advance or in use) by the jack 17 which allows the whole block to rise and fall. The jack 18, in addition to its role of raising the propellant, here has the function of keeping the axis 22 of the propellant substantially horizontal. Safety devices are associated with the lifting cylinder 18 and are described below.
Le vérin 18 comporte un corps 40 et un piston 41 ayant une tige 42 terminée par une patte 43 alésée en 43A (figures 2 et 3). L'articulation 19 entre, le vérin 18 et le propulseur 12 est assurée par une liaison rotulante 44 (figure 3) dont la partie femelle est une bague 45 usinée en forme de sphère sur sa face interne. La bague 45 est retenue axialement dans l'alésage 43A de la patte 43 par un épaulement 46 et un circlips 47.The jack 18 comprises a body 40 and a piston 41 having a rod 42 terminated by a tab 43 bored at 43A (Figures 2 and 3). The articulation 19 between, the actuator 18 and the propellant 12 is provided by a swiveling connection 44 (FIG. 3), the female part of which is a ring 45 machined in the form of a sphere on its internal face. The ring 45 is retained axially in the bore 43A of the tab 43 by a shoulder 46 and a circlip 47.
La partie mâle de la liaison rotulante 44 est un noyau 48 ayant une forme sphérique complémentaire de l'usinage de la bague 45. Ce noyau sphérique 48 est diamétralement alésé en 48A et comporte dans cet alésage un deuxième noyau 49 de forme cylindrique limité par deux faces horizontales 50. Ce noyau cylindrique 49 est lui-même alésé axialement en 49A.The male part of the swiveling connection 44 is a core 48 having a spherical shape complementary to the machining of the ring 45. This spherical core 48 is diametrically bored at 48A and comprises in this bore a second core 49 of limited cylindrical shape by two horizontal faces 50. This cylindrical core 49 is itself axially bored at 49A.
La patte alésée 43 est logée dans une chape formée par deux branches 51 et 52 solidaires du propulseur 12 et disposées sur la face avant de celui-ci. Les branches 51 et 52 reçoivent deux pièces annulaires 53 et 54. Deux noyaux cylindriques 55 et 56 sont logés dans les pièces 53 et 54. Ces noyaux 55 et 56 sont alésés axialement en 55A et 56A. Une goupille 57 est emmanchée dans les alésages 49A, 55A et 56A des noyaux 49, 55 et 56. Cet ensemble est maintenu axialement à une extrémité par l'épaulement 58 du noyau 55 et à l'autre extrémité par une bague 59. La goupille 57 est destinée à casser en cas de choc violent sur le propulseur 12.The reamed tab 43 is housed in a yoke formed by two branches 51 and 52 secured to the propellant 12 and arranged on the front face thereof. The branches 51 and 52 receive two annular parts 53 and 54. Two cylindrical cores 55 and 56 are housed in the parts 53 and 54. These cores 55 and 56 are bored axially at 55A and 56A. A pin 57 is fitted into the bores 49A, 55A and 56A of the cores 49, 55 and 56. This assembly is held axially at one end by the shoulder 58 of the core 55 and at the other end by a ring 59. The pin 57 is intended to break in the event of a violent impact on the propellant 12.
L'ensemble des noyaux 49, 55 et 56 et de la goupille 57 assure la liaison entre le vérin 18 et le propulseur 12. Aussi, il est important que cet ensemble de pièces 49, 55, 56 et 57 soit extrêmement rigide. En effet, πans l'hypothèse où un léger geu subsisterait entre la goupille 57 eτ; les noyaux 49, 55 et 56, l'ensemble de ces pièces s'userait par matage. Ce matage aurait pour effet d'accentuer le jeu en question. On transformerait ainsi la résistance de la goupille au cisaillement en une résistance à la flexion qui est beaucoup moins grande. Cela provoquerait la destruction intempestive et prématurée de cette goupille.The set of cores 49, 55 and 56 and of the pin 57 ensures the connection between the jack 18 and the propellant 12. Also, it is important that this set of parts 49, 55, 56 and 57 is extremely rigid. Indeed, πans the assumption that a slight geu would remain between the pin 57 eτ; the cores 49, 55 and 56, all of these parts would wear out by dulling. This matting would accentuate the game in question. This would transform the pin's shear strength into a much lower flexural strength. This would cause untimely and premature destruction of this pin.
De façon à éviter l'apparition d'un jeu par matage, on utilise soit la technique du chaud, soit la technique du froid, pour emmancher cette goupille 57 dans les alésages 49A, 55A, 56A des noyaux 49, 55, 56. Lorsque la technique du chaud est utilisée, on peut appliquer par exemple de l'huile bouillante aux noyaux 49, 55 et 56, emmancher alors la goupille 57 et comprimer le tout axialement pendant le refroidissement des pièces 49, 55 et 56.In order to avoid the appearance of a game by matting, either the hot technique or the cold technique is used to fit this pin 57 into the bores 49A, 55A, 56A of the cores 49, 55, 56. When the hot technique is used, we can apply for example boiling oil to the cores 49, 55 and 56, then press the pin 57 and compress the whole axially during the cooling of the parts 49, 55 and 56.
Lorsque la technique du froid est utilisée, on applique, par exemple, de l'azote liquide à la goupille 57 et on l'emmanche dans les pièces 49, 55 et 56. L'ensemble est également comprimé pendant que la goupille revient à température ambiante.When the cold technique is used, liquid nitrogen is applied, for example, to pin 57 and it is fitted into parts 49, 55 and 56. The assembly is also compressed while the pin returns to temperature ambient.
Dans les deux cas, les faces 50 du noyau 49 sont rendues extrêmement solidaires avec les faces des noyaux 55 et 56. L'ensemble ainsi obtenu forme un bloc solidaire, et tout effet de matage est ainsi évité.In both cases, the faces 50 of the core 49 are made extremely integral with the faces of the cores 55 and 56. The assembly thus obtained forms an integral block, and any matting effect is thus avoided.
Grâce à ces dispositions, la goupille centrale 57 ne travaille qu'au cisaillement. Sa résistance est calculée pour qu'elle cède à un choc supérieur à une valeur prédéterminée. On évite ainsi l'endommagement du vérin 18 et/ou du propulseur 12 si ce dernier vient à rencontrer un obstacle particulièrement résistant lors du déplacement de l'engin flottant. On va maintenant décrire un second dispositif de sécurité consistant en un dispositif amortisseur 21.Thanks to these provisions, the central pin 57 works only in shear. Its resistance is calculated so that it yields to a shock greater than a predetermined value. This prevents damage to the actuator 18 and / or to the propellant 12 if the latter comes into contact with a particularly resistant obstacle during the movement of the floating object. We will now describe a second safety device consisting of a damping device 21.
Suivant la forme de réalisation choisie et représentée à la figure 2, le dispositif amortisseur 21 comporte un corps 60 de forme globalement cylindrique qui est alésé axialement en 60A. A chacune de ses extrémités, ce corps 60 comporte deux cavités 61 et 62 dans lesquelles sont logés deux blocs en élastomère 63 et 64. Ces blocs en élastomère sont également alésés suivant leur axe. Une tige 65 comportant une patte 66 traverse l'ensemble formé par le corps 60 et les blocs en élastomère 63 et 64. La patte 66 est articulée en 66A dans une chape 67 du corps 40 du vérin 18. La tige 65 est munie de deux plateaux 70 et 71 qui lui sont solidaires et qui viennent prendre appui sur la face extérieure des blocs en élastomère 63 et 64.According to the embodiment chosen and shown in Figure 2, the damping device 21 comprises a body 60 of generally cylindrical shape which is axially bored at 60A. At each of its ends, this body 60 has two cavities 61 and 62 in which are housed two elastomer blocks 63 and 64. These elastomer blocks are also bored along their axis. A rod 65 comprising a tab 66 passes through the assembly formed by the body 60 and the elastomer blocks 63 and 64. The tab 66 is articulated at 66A in a yoke 67 of the body 40 of the jack 18. The rod 65 is provided with two trays 70 and 71 which are integral with it and which come to take support on the outside of the elastomer blocks 63 and 64.
Cet ensemble constitue un amortisseur capable:This set constitutes a shock absorber capable of:
- de filtrer les vibrations de l'hélice dupropulseur;- to filter the vibrations of the propeller of the propellant;
- d'amortir des chocs d'amplitude relativement faible pour éviter une cassure prématurée de la goupille 57;- To absorb shocks of relatively small amplitude to avoid premature breakage of the pin 57;
- d'amortir le choc occasionné par une inversion brutale de marche du propulseur.- to absorb the shock caused by a sudden reversal of the thruster's operation.
Une telle inversion génère, par l'intermédiaire du propulseur, un couple important sur la goupille 57 qui risque de faire céder cette dernière si le choc n'est pas absorbé. L'amortisseur 21 permet précisément l'absorption d'un tel choc. Un troisième dispositif de sécurité est associé au vérin 18 et consiste en une soupape 73 disposée dans le circuit hydraulique 72 du vérin de relevage 18 (figure 2). Ce circuit, représenté de façon schématique figure 2, comprend un réservoir 74 de liquide hydraulique, une pompe 75 et un distributeur quatre voies 76. Le tout agit en coopération pour déplacer le piston 41 dans le cprps 40 du vérin 18 et pour bloquer le piston 41 en toute position désirée.Such an inversion generates, via the propellant, a significant torque on the pin 57 which risks causing the latter to yield if the shock is not absorbed. The damper 21 precisely allows the absorption of such a shock. A third safety device is associated with the jack 18 and consists of a valve 73 arranged in the hydraulic circuit 72 of the lifting jack 18 (FIG. 2). This circuit, shown diagrammatically in FIG. 2, comprises a reservoir 74 of hydraulic liquid, a pump 75 and a four-way distributor 76. The whole acts in cooperation to move the piston 41 in the cprps 40 of the jack 18 and to block the piston 41 in any desired position.
La soupape 73 permet d'encaisser progressivement les chocs sur le propulseur 12 (en cas d'atterrissage sur un banc de boue par exemple). A cet effet, il est taré à un niveau de pression prédéterminé pour permettre une décompression éventuelle du vérin 18. Cette soupape 73 fait retourner l'excès de fluide hydraulique vers le réservoir 74.The valve 73 makes it possible to gradually absorb the shocks on the propellant 12 (in the event of landing on a mud bank for example). To this end, it is calibrated at a predetermined pressure level to allow possible decompression of the jack 18. This valve 73 causes the excess hydraulic fluid to return to the reservoir 74.
De préférence, le réservoir 74 (figure 1) est disposé sous le dispositif amortisseur 21. Les dispositifs de sécurité, à savoir la goupille 57, l'amortisseur 21 et la soupape 73, sont agencés et réglés de telle sorte que l'ensemble des chocs que peut subir le propulseur 12 est absorbé sans dommage pour ce dernier et pour le vérin 18. Ainsi, lorsque le choc est trop violent et trop rapide pour que la soupape 73 rentre en action, la goupille de sécurité 57 cède, dégageant ainsi le propulseur 12. Lorsque le choc est plus progressif, la soupape 73 entre en action. En outre, l'amortisseur 21 absorbe les chocs beaucoup plus faibles et brefs. On appréciera la construction simple et robuste du montage du bloc 1 sur le véhicule flottant 13, ainsi que le fonctionnement exempt d ' aléas du propulseur 12.Preferably, the reservoir 74 (FIG. 1) is arranged under the damping device 21. The safety devices, namely the pin 57, the damper 21 and the valve 73, are arranged and adjusted so that all of the shocks that the thruster 12 can undergo is absorbed without damage to the latter and to the jack 18. Thus, when the shock is too violent and too rapid for the valve 73 to come into action, the safety pin 57 gives way, thus releasing the propellant 12. When the impact is more gradual, the valve 73 comes into action. In addition, the shock absorber 21 absorbs much weaker and brief shocks. We appreciate the simple and robust construction of the assembly of the block 1 on the floating vehicle 13, as well as the hazard-free operation of the propellant 12.
Bien entendu, l'invention ne se limite pas à la forme de réalisation décrite et représentée à titre d'exemple, mais englobe toutes variantes d'exécution. Of course, the invention is not limited to the embodiment described and shown by way of example, but encompasses all variant embodiments.

Claims

REVEITDICATIONSREVEITDICATIONS
1- Dispositif de montage d'un propulseur sur un véhicule flottant, dans lequel au moins un vérin de relevage du propulseur est relié au véhicule flottant et au propulseur par des moyens de liaison comportant au moins une articulation, caractérisé en ce que ladite articulation (19) comporte une goupille axiale de sécurité (57) destinée à casser en cas de choc violent sur le propulseur (12). 2- Dispositif suivant la revendication 1, caractérisé en ce que ladite articulation (19) est disposée sur le propulseur (12).1- Device for mounting a propellant on a floating vehicle, in which at least one propellant lifting cylinder is connected to the floating vehicle and to the propellant by connection means comprising at least one articulation, characterized in that said articulation ( 19) comprises an axial safety pin (57) intended to break in the event of a violent impact on the propellant (12). 2- Device according to claim 1, characterized in that said articulation (19) is disposed on the propellant (12).
3- Dispositif de montage selon l'une quelconque des revendications 1, 2, caractérisé en ce que la goupille axiale de sécurité (57) est serrée à force dans au moins une partie (55, 49, 56) de ladite articulation (19).3- mounting device according to any one of claims 1, 2, characterized in that the axial safety pin (57) is forcibly tightened in at least one part (55, 49, 56) of said articulation (19) .
4- Dispositif de montage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le vérin de relevage (18) est muni d'un dispositif amortisseur (21) adapté à filtrer les vibrations du propulseur (12).4- mounting device according to any one of claims 1 to 3, characterized in that the lifting cylinder (18) is provided with a damping device (21) adapted to filter the vibrations of the propellant (12).
5- Dispositif de montage selon la revendication 4, caractérisé en ce que ledit dispositif amortisseur (21) est également adapté à absorber des chocs modérés sur le propulseuro5- mounting device according to claim 4, characterized in that said damping device (21) is also adapted to absorb moderate shocks on the propellor
6- Dispositif de montage selon l'une quelconque des revendications 4, 5, caractérisé en ce que le dispositif amortisseur comporte des blocs en élastomère (63, 64).6- mounting device according to any one of claims 4, 5, characterized in that the damping device comprises elastomer blocks (63, 64).
7- Dispositif de montage selon l'une quelconque des revendications 1 à 6, dans lequel ledit vérin de relevage (18) est un vérin hydraulique , caractérisé en ce qu' il est muni d ' une soupape (73) adaptée à évacuer du f-luide hydraulique vers le réservoir (74) pour permettre au propulseur (12) de se relever passagèrement lorsqu' il est soumis à une action extérieure intempestive.7- mounting device according to any one of claims 1 to 6, wherein said lifting cylinder (18) is a hydraulic cylinder, characterized in that it is provided with a valve (73) adapted to evacuate hydraulic f-luide to the reservoir (74) to allow the propellant (12) to rise temporarily when it is subjected to an untimely external action.
8- Véhicule flottant comportant au moins un propulseur muni d 'un dispositif de montage selon l'une quelconque des revendications précédentes . 8- Floating vehicle comprising at least one propellant provided with a mounting device according to any one of the preceding claims.
EP19820900367 1981-01-27 1982-01-27 Device for mounting a propulsing unit on a floating vehicle Withdrawn EP0070294A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8101454A FR2498555B1 (en) 1981-01-27 1981-01-27 CABIN-MOTOR-PROPELLER
FR8101454 1981-01-27

Publications (1)

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EP0070294A1 true EP0070294A1 (en) 1983-01-26

Family

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Application Number Title Priority Date Filing Date
EP19820900367 Withdrawn EP0070294A1 (en) 1981-01-27 1982-01-27 Device for mounting a propulsing unit on a floating vehicle

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EP (1) EP0070294A1 (en)
FR (1) FR2498555B1 (en)
WO (1) WO1982002526A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102008064294B4 (en) 2008-12-20 2015-06-25 Büter Hebetechnik GmbH Lifting device for a ship's cab

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Publication number Priority date Publication date Assignee Title
US2847968A (en) * 1954-12-13 1958-08-19 Arthur W Wanzer Outboard propeller mechanism for sea going vessels
DE1079493B (en) * 1958-03-17 1960-04-07 Inst Schiffbau Electric ship propulsion adjustable in vertical direction
US3406652A (en) * 1958-07-14 1968-10-22 Wintercorn Andrew F Outboard motor tilting mechanisms
US3246915A (en) * 1963-08-06 1966-04-19 Kiekhaefer Corp Outboard propulsion units for boats
US3285221A (en) * 1964-09-14 1966-11-15 Kiekhaefer Corp Outboard propulsion unit power tilt mechanism
FI45641C (en) * 1967-05-03 1972-08-10 Hollming Oy Vertically adjustable outboard motor
FR1552872A (en) * 1967-08-17 1969-01-10
US3859952A (en) * 1973-01-26 1975-01-14 Aldo Celli Shock absorbing tilt mechanism for stern drives for boats
FR2267240B1 (en) * 1974-04-12 1977-10-28 Bipt
DE2507987A1 (en) * 1975-02-25 1976-09-02 Peter Goebel Automatic trim control for hydrofoil boat - has servo valve to monitor trim flap position and maintain hydraulic setting

Non-Patent Citations (1)

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Title
See references of WO8202526A1 *

Also Published As

Publication number Publication date
FR2498555B1 (en) 1986-03-21
FR2498555A1 (en) 1982-07-30
WO1982002526A1 (en) 1982-08-05

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