EP0147246B1 - Turbo engine transport stand - Google Patents

Turbo engine transport stand Download PDF

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Publication number
EP0147246B1
EP0147246B1 EP84401105A EP84401105A EP0147246B1 EP 0147246 B1 EP0147246 B1 EP 0147246B1 EP 84401105 A EP84401105 A EP 84401105A EP 84401105 A EP84401105 A EP 84401105A EP 0147246 B1 EP0147246 B1 EP 0147246B1
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EP
European Patent Office
Prior art keywords
frame
support members
support
platform
base
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
Application number
EP84401105A
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German (de)
French (fr)
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EP0147246A1 (en
Inventor
Jean-Louis-Marie Garrec
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.)
Safran Aircraft Engines SAS
Original Assignee
Societe Nationale dEtude et de Construction de Moteurs dAviation SNECMA
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Publication of EP0147246A1 publication Critical patent/EP0147246A1/en
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Publication of EP0147246B1 publication Critical patent/EP0147246B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/68—Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • B65D2585/68—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form
    • B65D2585/6802—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles
    • B65D2585/6875—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts
    • B65D2585/6877—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts engines or motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • B65D2585/68—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form
    • B65D2585/6802—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles
    • B65D2585/6875—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts
    • B65D2585/6882—Containers, packaging elements or packages specially adapted for particular articles or materials for machines, engines, or vehicles in assembled or dismantled form specific machines, engines or vehicles engines, motors, machines and vehicle parts vehicle parts

Definitions

  • the invention relates to a turbo-machine transport frame, in particular a turbojet engine, for example with a high dilution rate.
  • US Patent 3,208,699 discloses a transport frame for a low-dilution turbojet engine in which the engine is supported in a frame obtained by connecting together two lateral rails supported by a trellis pivotally mounted along the edges of a platform.
  • the device of this patent which allows the mounting of engines having no significant differences in cross-section is not applicable to civil engines with a high dilution rate, the diameter of the fan is much greater than the diameter of the engine body. It is to this type of motors that the frame according to the present invention applies.
  • a frame is necessary to support, for example, a turbojet engine during its transport over distances which can be great, from the workshops of the engine manufacturer to those of the aircraft manufacturer.
  • Such a frame must be designed to allow the use of means of transport as well road, air or sea without it being necessary to make modifications to these means to adapt them to the material transported.
  • a frame is in the form of a platform surmounted by vertically raised arms provided at their end with attachment means cooperating with complementary means adapted on the casing of the turbojet engine. In general it is maintained isostatically at three points, two points at the front, one point at the rear.
  • Such frames are designed to meet handling conditions by persons lacking the necessary qualification. For this reason their design is simple and robust allowing an easy implementation and avoiding any risk of degradation of transported material.
  • the frames are returned to the engine manufacturer in order to be reused for the transport of new engines.
  • the object of the invention is therefore to facilitate the empty transport of the frames in order to reduce costs on the one hand, and limit the risks of deterioration of the equipment on the other hand, by proposing motor support members. on the platform so that it is possible, when the frame is not in use, to fold them back on the platform, while making the platform in at least two separable elements connected by an elastic suspension to ensure safe transport of the engine and directly allow its aircraft.
  • a first advantage offered by this solution is, of course, the reduction in vertical dimensions facilitating handling and loading operations on the means of transport, of the empty frame.
  • a second advantage is that it makes it possible to envisage stacking several frames one on the other, it suffices for this to arrange means ensuring a stable support from one frame to the other when the support members are folded.
  • Such means can be constituted for example by amounts reported on the platforms of the lower frame, on which rests and, to which is secured, the platform of the upper frame; in this way the ends of the support members are not stressed and do not risk being damaged.
  • this solution offers the additional advantage of allowing the engine to be powered from the same frame when the latter is made up of separable elements.
  • two types of frame design are known: a frame made up of separable elements, a monobloc frame.
  • the support members form a cradle in which the engine rests, this cradle is itself mounted on a base during transport of the engine.
  • the cradle is deposited with its engine on a trolley which is placed under the wing of the aircraft inside the open cowling, integral with the mast; the cradle is hoisted from the wing using a hoist system; once the engine is fixed, the cradle is lowered onto the carriage and released.
  • the low height available under the wing requires a very low carriage to be able to disengage the cradle. Thanks to the provisions of the invention, it is not necessary to transpose the cradle on a special carriage for aircraft, it suffices to adapt rolling means to the base, in order to be able to move it locally around the aircraft. To release the cradle once the engine is installed, simply fold the support members (the order of operations is obviously reversed for removing the engine).
  • the two designs of the frame are possible.
  • the description which follows attaches to a non-limiting embodiment of the frame, where the elements are separable.
  • the main characteristic namely the retraction of the support members
  • a high-dilution turbojet engine 1 installed on the frame 2, which is itself composed of three separable elements: a base 3 , a frame 4 and a support adapter 5; the base 3 and the frame 4 forming a platform.
  • the base 3 consists of a chassis consisting of two beams 31 joined by two beams 32, the two beams are connected by two tunnels intended to receive the forks of a forklift.
  • This chassis supports the frame 4 by means of two crosspieces which are fixed to the longitudinal member 31 with the interposition of elastic suspensions 35 which must isolate the frame-adapter-motor assembly from shocks or vibrations received by the base 3 during transport. road, for example.
  • Each of the elements of the suspension may consist of an elastomer block, of rectangular parallelepiped shape, fixed between two metal plates, one secured to the cross member, the other to the spar 31 concerned.
  • the frame 4 comprises two beams 41 bearing on the cross members 34 and which are held in position by frame-cross member connecting means, for example of the tenon and mortise type.
  • Two tunnels 42 are also provided for housing the forks of a forklift.
  • the frame is designed to receive at each end of the side members 41 rolling means, not shown; these means should allow local movement at reduced speed of the frame-adapter-motor separate from the base 3.
  • On the frame is fixed the base 51 of the adapter-support by means of pins 43 connecting the spar 41 to fittings 44 integral with the base 51.
  • the support adapter comprises, mounted on the base 51, three support members 52, 53, 54 and a four-point hoisting device; the latter being constituted by two rings 55 and 56 fixed to the members 52 and 53, and two rings 57 and 58 at the end of two arms 57 ', 58' detachably connected to the base 51.
  • the turbojet engine 1 shown in broken dashed lines is a turbojet engine with a high dilution rate supported at three points: two points on the fan casing and one point on the exhaust casing.
  • the two members 52 and 53 are provided at their upper end with means of connection with the fan casing, for example jaws enclosing pins engaged in ball joints housed in the casing.
  • the support member 54 is also provided at its upper end with means of connection with the exhaust casing. It is connected at its lower end by an axis to a yoke secured to the base.
  • the members 52, 53 supporting most of the mass of the engine are highly dimensioned and, are constituted by a leg 52 ', 53' reinforced by a stand 52 ", 53".
  • the legs 52 ′, 53 ′ are joined to the base by means of a joint 72, 73 comprising an axis cooperating with a yoke secured to the base.
  • the crutches are also joined to the base by a hinge 74, 75 comprising an axis cooperating with a yoke integral with the base.
  • Each crutch is fixed to the corresponding leg by means of a pin 76, 77.
  • the two support members are joined by a transverse stiffening beam 59.
  • Such a frame is used in the following manner.
  • the support adapter is detached from the frame by removing the pins 43, which allows the hoisting of the motor with the support adapter by means of tie rods engaged in the rings 55, 56, 57, 58; once the engine is fixed to the mast of the airplane, the support members are detached from the casing, and the adapter lowered onto the frame 4.
  • the support member 54 is folded over the base as well as the arms 57 ′, 58 ′ of the hoisting device.
  • the frames are returned to engine manufacturer, either the adapter-support frame assembly alone, or this assembly plus the base 3; everything will depend on the organization of the engine transport chain between the engine manufacturer and the aircraft manufacturer. But in order to facilitate their vacuum transport, the frames are stacked on top of each other after having folded the support members onto the base; by releasing one of the two axes of each stand 52 ", 53" they are thus allowed to the legs 52 ', 53' to be placed along the base.
  • the third support member 54 and the arms of the hoisting device 57 ', 58' are likewise folded down.
  • FIG. 4 shows how it is possible to stack two or more frames, using front support uprights 6 and rear support uprights 61 which are secured everywhere appropriate means, bolting for example, to the frame of the two superimposed frames .

Description

L'invention porte sur un bâti de transport de turbo- machine notamment de turboréacteur, par exemple à grand taux de dilution.The invention relates to a turbo-machine transport frame, in particular a turbojet engine, for example with a high dilution rate.

Le brevet US 3 208 699 divulgue un bâti de transport pour turboréacteur à faible taux de dilution dans lequel le moteur est supporté dans un cadre obtenu en reliant entre eux deux rails latéraux supportés par un treillis monté pivotant le long des bords d'une plateforme.US Patent 3,208,699 discloses a transport frame for a low-dilution turbojet engine in which the engine is supported in a frame obtained by connecting together two lateral rails supported by a trellis pivotally mounted along the edges of a platform.

Ce document constitue l'état de la technique le plus proche de l'invention et le préambule de la revendication principale de la présente demande reprend les caractéristiques divulguées par le brevet précité.This document constitutes the state of the art closest to the invention and the preamble to the main claim of the present application incorporates the characteristics disclosed by the aforementioned patent.

Toutefois le dispositif de ce brevet qui permet le montage de moteurs ne présentant pas de différences importantes de sections n'est pas applicable à des moteurs civils à fort taux de dilution dont le diamètre de la soufflante est très supérieur au diamètre du corps du moteur. C'est à ce type de moteurs que s'applique le bâti selon la présente invention.However, the device of this patent which allows the mounting of engines having no significant differences in cross-section is not applicable to civil engines with a high dilution rate, the diameter of the fan is much greater than the diameter of the engine body. It is to this type of motors that the frame according to the present invention applies.

L'usage de bâti est nécessaire pour supporter, par exemple, un turboréacteur pendant son transport sur des distances qui peuvent être grandes, depuis les ateliers du motoriste jusqu'à ceux de l'avionneur. Un tel bâti doit être conçu pour permettre l'utilisation de moyens de transport aussi bien routiers, qu'aériens ou maritimes sans qu'il soit nécessaire d'apporter des modifications à ces moyens pour les adapter au matériel transporté. Un bâti se présente sous la forme d'une plateforme surmontée de bras dressés verticalement pourvus à leur extrémité de moyens d'attache coopérant avec des moyens complémentaires adaptés sur le carter du turboréacteur. En général celui-ci est maintenu isostatiquement en trois points, deux points à l'avant, un point à l'arrière. De tels bâtis sont conçus pour satisfaire à des conditions de manutention par des personnes dépourvues de qualification nécessaire. Pour cette raison leur conception est simple et robuste permettant une mise en oeuvre facile et évitant tout risque de dégradation de matériel transporté.The use of a frame is necessary to support, for example, a turbojet engine during its transport over distances which can be great, from the workshops of the engine manufacturer to those of the aircraft manufacturer. Such a frame must be designed to allow the use of means of transport as well road, air or sea without it being necessary to make modifications to these means to adapt them to the material transported. A frame is in the form of a platform surmounted by vertically raised arms provided at their end with attachment means cooperating with complementary means adapted on the casing of the turbojet engine. In general it is maintained isostatically at three points, two points at the front, one point at the rear. Such frames are designed to meet handling conditions by persons lacking the necessary qualification. For this reason their design is simple and robust allowing an easy implementation and avoiding any risk of degradation of transported material.

Une fois le moteur arrivé à destination, et pris en charge par l'avionneur, les bâtis sont renvoyés au motoriste afin d'être réutilisés pour le transport de nouveaux moteurs.Once the engine has arrived at its destination, and taken care of by the aircraft manufacturer, the frames are returned to the engine manufacturer in order to be reused for the transport of new engines.

Dans le but de réduire leur encombrement et de limiter les coûts de transport à vide, il est possible de regrouper les bâtis par deux en les disposant, l'un retourné sur l'autre. Il s'est révélé que cette solution n'était pas satisfaisante car les organes-supports sont soumis à des contraintes pour lesquelles ils n'ont pas été conçus, et les diverses manipulations, effectuées avec des soins moins attentifs que pour le matériel très onéreux que sont les turboréacteurs, entrainent des détériorations nécessitant des travaux de remise en état des bâtis avant leur réutilisation.In order to reduce their size and limit the costs of empty transport, it is possible to group the frames in pairs by arranging them, one turned over on the other. It turned out that this solution was not satisfactory because the support members are subjected to constraints for which they were not designed, and the various manipulations, carried out with less careful care than for very expensive equipment. that are turbojet engines, lead to deterioration requiring work to restore the frames before their reuse.

L'objet de l'invention est donc de faciliter le transport à vide des bâtis afin de, réduire les coûts d'une part, et, limiter les risques de détérioration du matériel d'autre part, en proposant de moteur les organes-supports sur la plateforme de façon qu'il soit possible, lorsque le bâti n'est pas utilisé, de les replier sur la plateforme, tout en réalisant la plateforme en au moins deux éléments séparables reliés par une suspension élastique pour assurer un transport sûr du moteur et permettre directement son avionnage.The object of the invention is therefore to facilitate the empty transport of the frames in order to reduce costs on the one hand, and limit the risks of deterioration of the equipment on the other hand, by proposing motor support members. on the platform so that it is possible, when the frame is not in use, to fold them back on the platform, while making the platform in at least two separable elements connected by an elastic suspension to ensure safe transport of the engine and directly allow its aircraft.

Un premier avantage qu'offre cette solution est, bien sûr, la diminution de l'encombrement vertical facilitant les opérations de manutention et de chargement sur les moyens de transport, du bâti vide.A first advantage offered by this solution is, of course, the reduction in vertical dimensions facilitating handling and loading operations on the means of transport, of the empty frame.

Un second avantage est qu'elle permet d'envisager le gerbage de plusieurs bâtis l'un sur l'autre, il suffit pour cela d'aménager des moyens assurant un support stable d'un bâti sur l'autre lorsque les organes-supports sont repliés. De tels moyens peuvent être constitués par exemple par des montants rapportés sur les plateformes du bâti inférieur, sur lesquels vient reposer et, auxquels on solidarise, la plateforme du bâti supérieur; de la sorte les extrémités des organes-supports ne sont pas sollicités et ne risquent pas d'être endommagés.A second advantage is that it makes it possible to envisage stacking several frames one on the other, it suffices for this to arrange means ensuring a stable support from one frame to the other when the support members are folded. Such means can be constituted for example by amounts reported on the platforms of the lower frame, on which rests and, to which is secured, the platform of the upper frame; in this way the ends of the support members are not stressed and do not risk being damaged.

Enfin cette solution offre l'avantage supplémentaire de permettre l'avionnage du moteur à partir du même bâti lorsque celui-ci est constitué en éléments séparables. En effet, selon les fonctions à remplir deux types de conception du bâti sont connues: un bâti constitué d'éléments séparables, un bâti monobloc. Dans le premier cas les organes-supports forment un berceau dans lequel repose le moteur, ce berceau est lui-même monté sur un socle pendant le transport du moteur. Pour les opérations d'avionnage on dépose le berceau avec son moteur sur un chariot que l'on vient placer sous l'aile de l'avion à l'intérieur du capotage ouvert, solidaire du mât; le berceau est hissé à partir de l'aile au moyen d'un système à palan; une fois le moteur fixé, le berceau est descendu sur le chariot et dégagé. La faible hau- ter disponible sous l'aile nécessite un chariot très bas pour pouvoir dégager le berceau. Grâce aux dispositions de l'invention, il n'est pas nécessaire de transposer le berceau sur un chariot spécial à l'avionnage, il suffit d'adapter des moyens de roulages au socle, pour pouvoir le déplacer localement autour de l'avion. Pour dégager le berceau un fois le moteur installé, il suffit de replier les organes-supports (l'ordre des opérations est évidemment inverse pour la dépose du moteur).Finally, this solution offers the additional advantage of allowing the engine to be powered from the same frame when the latter is made up of separable elements. In fact, according to the functions to be fulfilled, two types of frame design are known: a frame made up of separable elements, a monobloc frame. In the first case, the support members form a cradle in which the engine rests, this cradle is itself mounted on a base during transport of the engine. For aircraft operations, the cradle is deposited with its engine on a trolley which is placed under the wing of the aircraft inside the open cowling, integral with the mast; the cradle is hoisted from the wing using a hoist system; once the engine is fixed, the cradle is lowered onto the carriage and released. The low height available under the wing requires a very low carriage to be able to disengage the cradle. Thanks to the provisions of the invention, it is not necessary to transpose the cradle on a special carriage for aircraft, it suffices to adapt rolling means to the base, in order to be able to move it locally around the aircraft. To release the cradle once the engine is installed, simply fold the support members (the order of operations is obviously reversed for removing the engine).

Dans le cas d'un bâti monobloc, tel que celui divulgué dans le brevet US 3 208 699 précité, les éléments constituant le berceau et le socle ne sont pas séparables. La fonction d'un tel bâti est limité au transport; il est en effet tro lourd pour pouvoir être hissé à partir de l'aile de l'avion; celle-ci ne résisterait pas à la charge.In the case of a one-piece frame, such as that disclosed in the aforementioned US Pat. No. 3,208,699, the elements constituting the cradle and the base are not separable. The function of such a frame is limited to transport; it is indeed very heavy to be able to be hoisted from the wing of the plane; it would not resist the load.

Suivant les conditions et les besoins des utilisateurs, les deux conceptions du bâti sont envisageables. La description qui va suivre s'attache à un mode de réalisation du bâti, non limitatif, où les éléments sont séparables. Cependant on comprendra aisément que l'on ne sorte pas du cadre de l'invention en appliquant la caractéristique principale, à savoir l'escamotage des organes-supports, à un bâti monobloc.According to the conditions and the needs of the users, the two designs of the frame are possible. The description which follows attaches to a non-limiting embodiment of the frame, where the elements are separable. However, it will be readily understood that it is not going beyond the ambit of the invention by applying the main characteristic, namely the retraction of the support members, to a one-piece frame.

Les figures, annexées au texte, auxquelles se réfère la description, représentent:

  • La figure 1, une vue longitudinale du bâti supportant un turboréacteur à grand taux de dilution suggéré par des traits fins interrompus.
  • La figure 2, le même bâti vue de droite en considérant la première figure.
  • La figure 3, une vue éclatée du bâti, en perspective.
  • La figure 4, deux bâtis repliés gerbés.
The figures appended to the text, to which the description refers, represent:
  • Figure 1, a longitudinal view of the frame supporting a turbojet engine with a high dilution rate suggested by fine broken lines.
  • Figure 2, the same frame seen from the right considering the first figure.
  • Figure 3, an exploded view of the frame, in perspective.
  • Figure 4, two folded stacked frames.

En se reportant aux trois premières figures on reconnaît en traits fins interrompus, la représentan- tion schématique d'un turboréacteur à grand taux de dilution 1, installé sur le bâti 2, qui est lui-même composé de trois éléments séparables: un socle 3, un cadre 4 et un adaptateur support 5; le socle 3 et le cadre 4 formant plateforme.Referring to the first three figures, we recognize in broken broken lines, the schematic representation of a high-dilution turbojet engine 1, installed on the frame 2, which is itself composed of three separable elements: a base 3 , a frame 4 and a support adapter 5; the base 3 and the frame 4 forming a platform.

Le socle 3 se compose d'un chassis constitué de deux longerons 31 réunis par deux poutres 32, les deux longerons sont reliés par deux tunnels destinés à recevoir les fourches d'un chariot élévateur. Ce chassis supporte le cadre 4 par l'intermédiaire de deux traverses qui sont fixées aux longeron 31 avec interposition de suspensions élastiques 35 devant isoler l'ensemble cadre-adaptateur-moteur des chocs ou des vibrations reçus par le socle 3 lors d'un transport routier, par exemple. Chacun des éléments de la suspension peut être constitué d'un bloc élastomère, de forme parallèlipipédique rectangle, fixé entre deux plaques métalliques, l'une solidaire de la traverse, l'autre, du longeron 31 concerné. Ces blocs, ainsi que leurs supports, sont inclinés par rapport à la verticale comme cela apparaît clairement sur la figure 2, afin de se prémunir contre une rupture de la suspension et, garantir le maintien sur le socle de la partie suspendue en cas d'efforts transversaux horizontaux excessifs. Des butées mécaniques 36, situées de part et d'autre de chaque bloc élastomère, limitent les déplacements longitudinaux et verticaux de la partie suspendue par rapports socle. D'autres types de suspensions élastiques sont possibles; à la place de bloc élastomères, on peut utiliser des câbles métalliques enroulés en hélice fixés à des armatures métalliques.The base 3 consists of a chassis consisting of two beams 31 joined by two beams 32, the two beams are connected by two tunnels intended to receive the forks of a forklift. This chassis supports the frame 4 by means of two crosspieces which are fixed to the longitudinal member 31 with the interposition of elastic suspensions 35 which must isolate the frame-adapter-motor assembly from shocks or vibrations received by the base 3 during transport. road, for example. Each of the elements of the suspension may consist of an elastomer block, of rectangular parallelepiped shape, fixed between two metal plates, one secured to the cross member, the other to the spar 31 concerned. These blocks, as well as their supports, are inclined with respect to the vertical as it appears clearly on figure 2, in order to guard against a rupture of the suspension and, to guarantee the maintenance on the base of the suspended part in case of excessive horizontal transverse forces. Mechanical stops 36, located on either side of each elastomer block, limit the longitudinal and vertical movements of the suspended part by base ratios. Other types of elastic suspensions are possible; instead of elastomeric blocks, it is possible to use helically wound metal cables fixed to metal reinforcements.

Le cadre 4 comprend deux longerons 41 prenant appui sur les traverses 34 et qui sont maintenus en position par des moyens de liaison cadre-traverse, par exemple du type tenon et mortaise. Deux tunnels 42 sont également prévus pour loger les fourches d'un chariot élévateur. Le cadre est conçu pour recevoir à chacune des extrémités des longerons 41 des moyens de roulage, non représentés; ces moyens devant permettre un déplacement local à vitesse réduite de l'ensuite cadre-adaptateur-moteur séparé du socle 3. Sur le cadre est fixée l'embase 51 de l'adaptateur-support au moyen de broches 43 reliant le longeron 41 à des ferrures 44 solidaires de l'embase 51.The frame 4 comprises two beams 41 bearing on the cross members 34 and which are held in position by frame-cross member connecting means, for example of the tenon and mortise type. Two tunnels 42 are also provided for housing the forks of a forklift. The frame is designed to receive at each end of the side members 41 rolling means, not shown; these means should allow local movement at reduced speed of the frame-adapter-motor separate from the base 3. On the frame is fixed the base 51 of the adapter-support by means of pins 43 connecting the spar 41 to fittings 44 integral with the base 51.

L'adaptateur-support comporte, montés sur l'embase 51, trois organes supports 52, 53, 54 et un dispositif de hissage quatre points; ce dernier étant constitués par deux anneaux 55 et 56 fixés sur les organes 52 et 53, et deux anneaux 57 et 58 à l'extrémité de deux bras 57', 58' reliés de façon amovible à l'embase 51.The support adapter comprises, mounted on the base 51, three support members 52, 53, 54 and a four-point hoisting device; the latter being constituted by two rings 55 and 56 fixed to the members 52 and 53, and two rings 57 and 58 at the end of two arms 57 ', 58' detachably connected to the base 51.

Dans le mode de réalisation préféré, le turboréacteur 1 représenté en traits fins interrompus est un turboréacteur à grand taux de dilution soutenu en trois points: deux points sur le carter de soufflante et un point sur le carter d'échappement. Les deux organes 52 et 53 sont pourvus à leur extrémité supérieure de moyens de liaison avec le carter de soufflante, par exemple des machoires enserrant des broches engagées dans des rotules logées dans le carter. L'organe-support 54 est également pourvu à son extrémité supérieure de moyens de liaison avec le carter d'échappement. Il est relié à son extrémité inférieure par un axe à une chape solidaire de l'embase.In the preferred embodiment, the turbojet engine 1 shown in broken dashed lines is a turbojet engine with a high dilution rate supported at three points: two points on the fan casing and one point on the exhaust casing. The two members 52 and 53 are provided at their upper end with means of connection with the fan casing, for example jaws enclosing pins engaged in ball joints housed in the casing. The support member 54 is also provided at its upper end with means of connection with the exhaust casing. It is connected at its lower end by an axis to a yoke secured to the base.

Les organes 52, 53 supportant l'essentiel de la masse du moteur, sont fortement dimensionnés et, sont constitués par une jambe 52', 53' renforcée par une béquille 52", 53". Les jambes 52', 53' sont réunies à l'embase par intermédiaire d'une articulation 72, 73 comprenant un axe coopérant avec une chape solidaire de l'embase. Les béquilles sont réunies de même à l'embase par une articulation 74, 75 comprenant un axe coopérant avec une chape solidaire de l'embase. Chaque béquille est fixée à la jambe correspondante au moyen d'une broche 76, 77. Les deux organes-supports sont réunis par une poutre transversale de raidissement 59.The members 52, 53 supporting most of the mass of the engine, are highly dimensioned and, are constituted by a leg 52 ', 53' reinforced by a stand 52 ", 53". The legs 52 ′, 53 ′ are joined to the base by means of a joint 72, 73 comprising an axis cooperating with a yoke secured to the base. The crutches are also joined to the base by a hinge 74, 75 comprising an axis cooperating with a yoke integral with the base. Each crutch is fixed to the corresponding leg by means of a pin 76, 77. The two support members are joined by a transverse stiffening beam 59.

Un tel bâti est utilisé de la façon suivante.Such a frame is used in the following manner.

Dans l'hypothèse où le moteur doit être acheminé des ateliers du motoriste à ceux de l'avionneur, en utilisant des moyens de transports routiers et aériens au moindre coût et dans des conditions de sécurité optimales, le moteur sera transporté sur le bâti muni du socle 3 dans les parties du trajet utilisant les voies routières, où il s'agit en effet de protéger le moteur contre les vibrations et les chocs excessifs qui peuvent se produire pendant un tel transport aériens, le socle n'est plus nécessaire, sa suppression permet de réduire la masse transportée. Chez l'avionneur une fois que le moteur est équipé et prêt à être installé sur l'avion on monte un dispositif de roulage à chacune des extrémités des longerons 41 du cadre 4 et on conduit l'ensemble sous l'aile de l'avion pour le glisser à l'intérieur des éléments de capotage solidaires du mât. L'adaptateur-support est désolidarisé du cadre en retirant les broches 43, ce qui permet le hissage du moteur avec l'adaptateur-support au moyen de tirants engagés dans les anneaux 55, 56, 57, 58; une fois le moteur fixé au mât de l'avion, les organes-supports sont désolidarisés du carter, et l'adaptateur redescendu sur le cadre 4. Afin de faciliter le dégagement du cadre et de l'adaptateur-support, il peut être nécessaire d'escamoter au moins partiellement les organes-supports 52 et 53, pour cela il suffit de libérer une des extrémités des béquilles 52", 53" permettant aux jambes 52', 53' de pivoter autour de leur articulation sur l'embase 51. De même l'organe- support 54 est rabattu sur l'embase ainsi que les bras 57', 58' du dispositif de hissage.In the event that the engine must be transported from the engineer's workshops to those of the aircraft manufacturer, using road and air transport at the lowest cost and in optimal safety conditions, the engine will be transported on the frame fitted with the base 3 in the parts of the journey using the roadways, where it is indeed a question of protecting the engine against vibrations and excessive shocks which can occur during such air transport, the base is no longer necessary, its removal reduces the mass transported. At the aircraft manufacturer once the engine is equipped and ready to be installed on the aircraft, a rolling device is mounted at each end of the side members 41 of the frame 4 and the assembly is driven under the wing of the aircraft. to slide it inside the cover elements integral with the mast. The support adapter is detached from the frame by removing the pins 43, which allows the hoisting of the motor with the support adapter by means of tie rods engaged in the rings 55, 56, 57, 58; once the engine is fixed to the mast of the airplane, the support members are detached from the casing, and the adapter lowered onto the frame 4. In order to facilitate the release of the frame and the support adapter, it may be necessary at least partially retract the support members 52 and 53, for this it suffices to release one of the ends of the crutches 52 ", 53" allowing the legs 52 ', 53' to pivot around their articulation on the base 51. Similarly, the support member 54 is folded over the base as well as the arms 57 ′, 58 ′ of the hoisting device.

Si l'on veut descendre le moteur, on comprendra aisément qu'il suffit d'effectuer les opérations l'ordre inverse.If you want to lower the engine, you will easily understand that it suffices to carry out the operations in reverse order.

Après leur utilisation, les bâtis sont renvoyés au motoriste, soit l'ensemble cadre adaptateur-support seul, soit cet ensemble plus le socle 3; tout dépendra de l'organisation de la chaîne de transport des moteurs entre le motoriste et l'avionneur. Mais afin de faciliter leurtransport à vide on empile les bâtis les uns sur les autres après avoir replié les organes-supports sur l'embase; en libérant un des deux axes de chaque béquille 52" , 53" on leur permet ainsi qu'aux jambes 52', 53' de se placer le long de l'embase. On rabat de même le troisième organe- support 54 et les bras du dispositif de hissage 57', 58'.After use, the frames are returned to engine manufacturer, either the adapter-support frame assembly alone, or this assembly plus the base 3; everything will depend on the organization of the engine transport chain between the engine manufacturer and the aircraft manufacturer. But in order to facilitate their vacuum transport, the frames are stacked on top of each other after having folded the support members onto the base; by releasing one of the two axes of each stand 52 ", 53" they are thus allowed to the legs 52 ', 53' to be placed along the base. The third support member 54 and the arms of the hoisting device 57 ', 58' are likewise folded down.

La figure 4 montre comment il est possible de gerber deux bâtis, ou plus, en utilisant des montants-supports avant 6 et des montants-supports arrière 61 que l'on solidarise partout moyen approprié, boulonnage par exemple, au cadre des deux bâtis superposés.FIG. 4 shows how it is possible to stack two or more frames, using front support uprights 6 and rear support uprights 61 which are secured everywhere appropriate means, bolting for example, to the frame of the two superimposed frames .

Dans une variante de réalisation simplifiée, on peut concevoir un bâti monobloc; dans cette variante les éléments socle, cadre, embase ne sont plus séparables, ils sont fondus en un seul élément constituant une plateforme sur laquelle s'articulent des organes-supports 52, 53 et 54 avec interposition éventuelle des suspensions élastiques. Malgré le fait qu'il ne soit pas possible d'installer le moteur sur son mât d'avion à partir du bâti, puisque l'ensemble est alors trop lourd pour pouvoir être hissé depuis l'aile de l'avion, une telle variante présente l'avantage d'un nombre réduit de pièces facilitant leur gestion et peut être préférée suivant l'utilisation projetée.In a simplified variant embodiment, it is possible to design a one-piece frame; in this variant the base elements, frame, base are no longer separable, they are fused into a single element constituting a platform on which articulate support members 52, 53 and 54 with possible interposition of the elastic suspensions. Despite the fact that it is not possible to install the engine on its aircraft mast from the frame, since the assembly is then too heavy to be hoisted from the wing of the aircraft, such a variant has the advantage of a reduced number of parts facilitating their management and may be preferred depending on the intended use.

Claims (5)

1. Turbo-machine transporting stand, in particular for a turbojet engine, comprising a movable platform provided with support members on which it rests while the operations of transport and maintenance are carried out, the said support members (52, 53, 54) being adjustable with respect to the said platform so as to be able to take up at least two positions, an active support position of the turbo- machine and an inactive position where they are folded down onto the platform, the said support members being connected to the platform by a pivot arrangement (72, 73, 74, 75) of which the axis is horizontal, while support means are provided for enabling at least two stands to be mounted the one on the other when the support members (52, 53, 54) are in the folded position, characterised in that the platform is constituted by at least two separable elements; a base (3) and a frame (4); the base (3) supporting through the intermediary of a resilient suspension (35) the frame (4) rigid with the support members (52, 53, 54).
2. Transport stand according to claim 1, characterised in that it comprises three support members (52, 53, 54) for the support of the turbo-machine at three points.
3. Support stand according to one of the preceding claims, characterised in that at least one of the support members (52, 53) is constituted by a leg (52', 53') provided at one end with means for attachment to a turbo-machine and at the other end pivot means (72, 73) with the platform and through a prop (52" , 53" ) which is adjustable and connected at one end to the platform and at the other end to the leg (52', 53').
4. Transport stand according to one of the preceding claims, characterised in that the support members (52, 53, 54) are pivotally mounted on a base member (51) supported in an adjustable manner by the frame (4).
5. Transport stand according to one of the preceding claims, characterised in that the support means are constituted by interconnected mountings (60, 61), serving to interconnected the platforms of two stands disposed one on the other.
EP84401105A 1983-12-29 1984-05-30 Turbo engine transport stand Expired EP0147246B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8320988 1983-12-29
FR8320988A FR2557541B1 (en) 1983-12-29 1983-12-29 TURBOMACHINE TRANSPORT CABINET

Publications (2)

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EP0147246A1 EP0147246A1 (en) 1985-07-03
EP0147246B1 true EP0147246B1 (en) 1987-04-22

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EP84401105A Expired EP0147246B1 (en) 1983-12-29 1984-05-30 Turbo engine transport stand

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US (1) US4660796A (en)
EP (1) EP0147246B1 (en)
CA (1) CA1241620A (en)
DE (1) DE3463249D1 (en)
FR (1) FR2557541B1 (en)

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Also Published As

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US4660796A (en) 1987-04-28
CA1241620A (en) 1988-09-06
FR2557541B1 (en) 1986-09-19
EP0147246A1 (en) 1985-07-03
FR2557541A1 (en) 1985-07-05
DE3463249D1 (en) 1987-05-27

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