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EP0592326A1 - Trenching apparatus for digging deep trenches with cutting drums - Google Patents

Trenching apparatus for digging deep trenches with cutting drums Download PDF

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Publication number
EP0592326A1
EP0592326A1 EP93402485A EP93402485A EP0592326A1 EP 0592326 A1 EP0592326 A1 EP 0592326A1 EP 93402485 A EP93402485 A EP 93402485A EP 93402485 A EP93402485 A EP 93402485A EP 0592326 A1 EP0592326 A1 EP 0592326A1
Authority
EP
European Patent Office
Prior art keywords
platform
lifting mast
chassis
mast
reels
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.)
Granted
Application number
EP93402485A
Other languages
German (de)
French (fr)
Other versions
EP0592326B1 (en
Inventor
Philippe Chagnot
Joseph Dietsch
Marcello Soldi
Giuseppe Zanetto
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.)
Compagnie du Sol SARL
Original Assignee
Compagnie du Sol SARL
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 Compagnie du Sol SARL filed Critical Compagnie du Sol SARL
Publication of EP0592326A1 publication Critical patent/EP0592326A1/en
Application granted granted Critical
Publication of EP0592326B1 publication Critical patent/EP0592326B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
    • E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
    • E02F3/22—Component parts
    • E02F3/24—Digging wheels; Digging elements of wheels; Drives for wheels
    • E02F3/246—Digging wheels; Digging elements of wheels; Drives for wheels drives
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/0808—Improving mounting or assembling, e.g. frame elements, disposition of all the components on the superstructures

Definitions

  • the present invention relates to an apparatus for digging deep trenches in the ground using milling drums.
  • These devices include a flexible pipe of relatively large section which extends from the vicinity of the milling drums to the ground surface to allow the discharge of the mixture constituted by the mud initially present in the trench and the materials resulting from the disintegration. from the ground by the milling drums.
  • Various other hydraulic or electrical lines make it possible in particular to supply the energy necessary for driving the milling drums.
  • Devices of this type can dig trenches, the depth of which is generally of the order of a few tens of meters.
  • the object of the present invention is to produce a device of the type described above which, while retaining or improving the performance of devices of known type, has a small footprint which allows it to be transported easily, for example on the road, the fact that its size remains below the limits set by the regulations in force for current travel on the roads.
  • the apparatus according to the invention also has the advantage of constituting a complete assembly which includes all the elements necessary for its operation, that is to say a group supplying the energy, an articulated lifting mast which supports the chassis and milling drums, reels which support pipes of different natures, as well as a control station.
  • the apparatus according to the invention is arranged on a platform, advantageously provided with tracks.
  • the present invention relates to an apparatus for digging deep trenches in the ground using milling drums, characterized in that it comprises in combination: a platform supported by a running gear such as caterpillars; a lifting mast articulated on the platform in the vicinity of one of the ends of the latter and maintained in the working position, preferably by means of at least one jack arranged in the vicinity of the other end of the platform; a chassis suspended from the upper end of the lifting mast by cables; milling drums, rotatable, mounted at the bottom of the chassis; a reel with horizontal axis located on the platform next to the lifting mast, supporting a flexible pipe for raising the cuttings from the vicinity of the milling drums to the ground surface, the median plane of said reel cutting the median plane of the lifting mast substantially along the vertical axis of the chassis; at least one group of reels with horizontal axis located on the platform below the lifting mast, supporting flexible pipes which terminate in the chassis to supply the latter with energy, and to ensure the positioning of the milling drums; an appliance control station, located on the platform
  • the rotation of the milling drums is ensured by hydraulic motors which are supplied by pipes supported by the reels arranged below the lifting mast.
  • the vertical positioning of the chassis in the trench is carried out using hydraulic jacks which are also supplied by pipes supported by the reels which are placed below the lifting mast.
  • the drive of the milling drums and the operation of the members ensuring the positioning of the chassis in the trench are carried out at least partially using electric motors powered by cables which are supported by the reels located below the lifting mast.
  • the reels of the pipes which in particular supply energy to the chassis are arranged in groups side by side on the same axis while being integral in rotation.
  • both the reels of the energy-carrying pipes and the one supporting the cuttings winding line are driven in rotation by motors with constant torque, so as to allow winding and unwinding.
  • automatic lines and pipes which remain subject to constant tension, regardless of the raising or lowering of the chassis and milling drums.
  • the lifting mast can be moved in its axial direction relative to the platform so as to be able to thereby increase or decrease its overhang towards the front of the apparatus.
  • This characteristic makes it possible to reduce the overall length of the apparatus according to the invention for its movement, while being able to bring the chassis with precision to the vertical of a trench which it is desired to achieve without having to use the undercarriage. rolling.
  • the device according to the invention comprises, at least at each of the four corners of its platform, a jack provided with a support plate which makes it possible to stabilize the device during its operation and lift it to keep it resting on the ground without it resting on its undercarriage.
  • the device according to the invention comprises a platform 1 which rests on a running gear constituted in this case by tracks 2 around which the platform can pivot.
  • a lifting mast 3 rests on the platform 1 by being articulated at its lower end 4 around a horizontal axis 5 secured to the rear of the platform 1 and by being supported at its end upper 6 by a hydraulic cylinder 7 mounted at the front of the platform 1.
  • the assembly consisting of the mast 3, the horizontal axis 5 and the hydraulic cylinder 7 is slidably mounted on the platform 1, so that it can be moved towards the front of the device in the axial direction of the mast 3.
  • one of the ends of a second hydraulic cylinder 8 is integral at 9 with the platform 1, while its other end is integral with the lower part of the mast.
  • the mast 3 is moved forwards or backwards of the apparatus, which makes it possible to increase or decrease the overhang of the mast relative to the front of the platform.
  • a chassis 11 supporting the milling drums 12 is suspended at the front of the lifting mast 3 by means of a lifting cable 13 which makes it possible to lower or raise the chassis 11 and the drums 12 in the current trench of achievement.
  • a winch 14 mounted at the lower end 4 of the lifting mast supports the cable 13 which extends, as seen in Figure 2, to the upper end 6 of the mast 3 to engage on a return pulley 15, located inside the mast, on a first pulley of a block 16 which is integral with the upper part of the chassis 11, then on an end pulley 17 mounted on the mast, and finally on a second pulley of the block 16, before reaching a fixed point to which it is subject to the end of the mast 3.
  • the winch 14 comprises a constant torque motor 18 which makes it possible, in particular in the case of hard ground, to maintain constant the bearing force of the milling drums on the ground during excavation, this force resulting solely from the weight of the chassis and drums.
  • the winch 14 also includes a cable speed regulator 13 with which one can limit the progression of the chassis in the case of softer terrain.
  • the winch 14 is directly attached to the lifting mast 3, which makes it possible to keep the height at which the chassis 11 is located in the event of the mast 3 moving on its rail by actuating the jack 8.
  • the chassis 11 comprises the various organs necessary for its operation, namely in particular hydraulic motors for driving the milling drums, and a pump for the discharge to the ground surface of the spoil from the disintegration of the ground by the milling drums.
  • the various flexible pipes (not shown) supplying the chassis 11 with energy are supported by groups of reels 19 and 20 which are located one behind the other on the platform 1 below. lifting mast 3.
  • the groups of reels 19 and 20 may for example each comprise five reels arranged side by side.
  • the groups of reels 19 and 20 are driven by a constant torque motor which ensures constant tension of the flexible pipes, independently of the movement of raising or lowering of the chassis 11 in the trench.
  • the flexible pipes enter the chassis through orifices provided in the upper part thereof, the location of which is schematically represented by dashed lines 22 in FIG. 1 and by dots 22 in FIG. 3.
  • a reel 23 intended to support a flexible pipe 24 of relatively large section allowing the transport of the cuttings to the ground surface is also arranged on the platform 1.
  • the median plane of this reel 23 cuts the median plane of the lifting mast 3 along the vertical axis of the chassis 11 so as to correctly guide the flexible pipe 24 and to reduce the size.
  • the reel 23 is advantageously provided with a constant torque motor.
  • the flexible pipe 24 is connected to the upper part of the chassis 11 between the two pulleys of the block 16.
  • a group 27 supplying the energy is located, in accordance with the invention, at the end of the platform 1 opposite the milling drums 12. This group makes it possible to supply the mechanical electrical and / or hydraulic energy which is necessary during operation of the device.
  • the group 27 comprises two hydraulic generators intended to supply on the one hand the various elements placed on the platform and on the other hand the chassis and the milling drums.
  • the platform 1 has at each of its four corners a hydraulic cylinder 28, extended by a support plate 29 at its lower part.
  • the support plates 29 can rest on the ground to stabilize the platform 1 or even lift it which allows the tracks 2 to pivot, and thus change the orientation of the undercarriage.
  • the device according to the invention has a small footprint which most often allows it to be transported on the road without having to dismantle it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

Apparatus for digging deep trenches in the ground with the aid of cutting drums, including a platform (1) on which there rest an articulated lifting mast (3); a chassis (11) equipped with cutting drums (12) being suspended from the top end (6) of the lifting mast (3), it being possible for these drums to be driven in terms of rotation; a winder (23) with horizontal axis situated beside the lifting mast (3), supporting a flexible pipe (24) for bringing up the debris, the mid-plane of the said winder (23) intersecting the mid-plane of the lifting mast (3) substantially along the vertical axis of the chassis (11); at least one set of winders (19, 20) with horizontal axis situated underneath the lifting mast (3), these supporting flexible pipelines which end at the chassis (11) for providing the latter with energy and for positioning the cutting drums (12); a control station (25) of the apparatus, situated beside the lifting mast (3) and in front of the winder (23) for winding up the pipe (24) for bringing up the debris; and a unit (27) supplying the energy necessary for the operation of the apparatus, situated at the opposite end of the platform from the chassis (11) supporting the cutting drums (12). <IMAGE>

Description

La présente invention est relative à un appareil pour creuser dans le sol des tranchées de grande profondeur à l'aide de tambours de fraisage.The present invention relates to an apparatus for digging deep trenches in the ground using milling drums.

On connaît déjà de tels appareils dans lesquels un châssis supporté par des câbles est muni à sa partie inférieure de deux tambours de fraisage à axes parallèles qui tournent en directions opposées pour désagréger le terrain et creuser la tranchée, tandis que le châssis s'enfonce dans le sol.We already know of such devices in which a chassis supported by cables is provided at its lower part with two milling drums with parallel axes which rotate in opposite directions to disintegrate the ground and dig the trench, while the chassis sinks into floor.

Ces appareils comportent une conduite flexible de section relativement importante qui s'étend depuis le voisinage des tambours de fraisage jusqu'à la surface du sol pour permettre le refoulement du mélange constitué par la boue initialement présente dans la tranchée et les matériaux résultant de la désagrégation du sol par les tambours de fraisage. Diverses autres canalisations hydrauliques ou électriques permettent notamment de fournir l'énergie nécessaire à l'entraînement des tambours de fraisage.These devices include a flexible pipe of relatively large section which extends from the vicinity of the milling drums to the ground surface to allow the discharge of the mixture constituted by the mud initially present in the trench and the materials resulting from the disintegration. from the ground by the milling drums. Various other hydraulic or electrical lines make it possible in particular to supply the energy necessary for driving the milling drums.

Les appareils de ce type peuvent creuser des tranchées dont la profondeur est généralement de l'ordre de quelques dizaines de mètres.Devices of this type can dig trenches, the depth of which is generally of the order of a few tens of meters.

Ces appareils présentent généralement des dimensions importantes qui rendent leur transport difficile, en particulier du fait que leur démontage est presque toujours indispensable.These devices generally have large dimensions which make their transport difficult, in particular because their disassembly is almost always essential.

La présente invention a pour but de réaliser un appareil du type décrit ci-dessus qui, tout en conservant ou en améliorant les performances des appareils de type connu, présente un faible encombrement qui lui permet d'être transporté facilement, par exemple sur route, du fait que son gabarit demeure inférieur aux limites fixées par la réglementation en vigueur pour des déplacements courants sur les routes.The object of the present invention is to produce a device of the type described above which, while retaining or improving the performance of devices of known type, has a small footprint which allows it to be transported easily, for example on the road, the fact that its size remains below the limits set by the regulations in force for current travel on the roads.

L'appareil selon l'invention présente également l'avantage de constituer un ensemble complet qui comporte la totalité des éléments nécessaires à son fonctionnement, c'est-à-dire un groupe fournissant l'énergie, un mât de levage articulé qui supporte le châssis et les tambours de fraisage, des enrouleurs qui supportent des canalisations de différentes natures, ainsi qu'un poste de commande.The apparatus according to the invention also has the advantage of constituting a complete assembly which includes all the elements necessary for its operation, that is to say a group supplying the energy, an articulated lifting mast which supports the chassis and milling drums, reels which support pipes of different natures, as well as a control station.

L'appareil selon l'invention est disposé sur une plate-forme, avantageusement munie de chenilles.The apparatus according to the invention is arranged on a platform, advantageously provided with tracks.

La présente invention a pour objet un appareil pour creuser dans le sol des tranchées de grande profondeur à l'aide de tambours de fraisage, caractérisé par le fait qu'il comporte en combinaison : une plate-forme supportée par un train de roulement tel que des chenilles ; un mât de levage articulé sur la plate-forme au voisinage de l'une des extrémités de cette dernière et maintenu en position de travail, de préférence à l'aide d'au moins un vérin disposé au voisinage de l'autre extrémité de la plate-forme ; un châssis suspendu à l'extrémité haute du mât de levage par l'intermédiaire de câbles ; des tambours de fraisage, entraînables en rotation, montés à la partie inférieure du châssis ; un enrouleur à axe horizontal situé sur la plate-forme à côté du mât de levage, supportant une conduite flexible pour remonter les déblais depuis le voisinage des tambours de fraisage jusqu'à la surface du sol, le plan médian dudit enrouleur coupant le plan médian du mât de levage sensiblement selon l'axe vertical du châssis ; au moins un groupe d'enrouleurs à axe horizontal situé sur la plate-forme en-dessous du mât de levage, supportant des canalisations flexibles qui aboutissent au châssis pour alimenter ce dernier en énergie, et pour assurer le positionnement des tambours de fraisage ; un poste de commande de l'appareil, situé sur la plate-forme à côté du mât de levage et devant l'enrouleur de la conduite de remontage des déblais ; et un groupe fournissant l'énergie nécessaire au fonctionnement de l'appareil, situé à l'extrémité de la plate-forme qui est opposée au châssis supportant les tambours de fraisage.The present invention relates to an apparatus for digging deep trenches in the ground using milling drums, characterized in that it comprises in combination: a platform supported by a running gear such as caterpillars; a lifting mast articulated on the platform in the vicinity of one of the ends of the latter and maintained in the working position, preferably by means of at least one jack arranged in the vicinity of the other end of the platform; a chassis suspended from the upper end of the lifting mast by cables; milling drums, rotatable, mounted at the bottom of the chassis; a reel with horizontal axis located on the platform next to the lifting mast, supporting a flexible pipe for raising the cuttings from the vicinity of the milling drums to the ground surface, the median plane of said reel cutting the median plane of the lifting mast substantially along the vertical axis of the chassis; at least one group of reels with horizontal axis located on the platform below the lifting mast, supporting flexible pipes which terminate in the chassis to supply the latter with energy, and to ensure the positioning of the milling drums; an appliance control station, located on the platform next to the lifting mast and in front of the reel for the cuttings winding line; and a group supplying the energy necessary for the operation of the apparatus, situated at the end of the platform which is opposite to the chassis supporting the milling drums.

Selon un mode de réalisation particulier de l'invention, la rotation des tambours de fraisage est assurée par des moteurs hydrauliques qui sont alimentés par des canalisations supportées par les enrouleurs disposés en-dessous du mât de levage.According to a particular embodiment of the invention, the rotation of the milling drums is ensured by hydraulic motors which are supplied by pipes supported by the reels arranged below the lifting mast.

De même, dans ce mode de réalisation, le positionnement vertical du châssis dans la tranchée est réalisé à l'aide de vérins hydrauliques qui sont également alimentés par des canalisations supportées par les enrouleurs qui sont placés en-dessous du mât de levage.Likewise, in this embodiment, the vertical positioning of the chassis in the trench is carried out using hydraulic jacks which are also supplied by pipes supported by the reels which are placed below the lifting mast.

Dans un autre mode de réalisation, l'entraînement des tambours de fraisage et la manoeuvre des organes assurant le positionnement du châssis dans la tranchée sont réalisés au moins partiellement à l'aide de moteurs électriques alimentés par des câbles qui sont supportés par les enrouleurs situés en-dessous du mât de levage.In another embodiment, the drive of the milling drums and the operation of the members ensuring the positioning of the chassis in the trench are carried out at least partially using electric motors powered by cables which are supported by the reels located below the lifting mast.

Dans un mode de réalisation préféré de l'invention, les enrouleurs des canalisations qui fournissent notamment l'énergie au châssis sont disposés par groupe côte à côte sur un même axe en étant solidaires en rotation.In a preferred embodiment of the invention, the reels of the pipes which in particular supply energy to the chassis are arranged in groups side by side on the same axis while being integral in rotation.

Pour limiter l'encombrement de ces enrouleurs, et pour éviter que leur largeur dépasse par trop celle du mât, il est avantageux, conformément à un mode de réalisation préféré de l'invention, de limiter le nombre de canalisations qui sont enroulées côte à côte sur un même axe et de disposer deux groupes d'enrouleurs l'un derrière l'autre en-dessous du mât de levage.To limit the size of these reels, and to avoid their width exceeding too much that of the mast, it is advantageous, in accordance with a preferred embodiment of the invention, to limit the number of pipes which are wound side by side on the same axis and to have two groups of reels one behind the other below the lifting mast.

Selon un mode de réalisation préféré de l'invention, tant les enrouleurs des canalisations véhiculant l'énergie que celui supportant la conduite de remontage des déblais, sont entraînés en rotation par des moteurs à couple constant, de manière à permettre un enroulement et un déroulement automatiques des canalisations et de la conduite qui restent ainsi soumises à une tension constante, indépendamment du soulèvement ou de l'abaissement du châssis et des tambours de fraisage.According to a preferred embodiment of the invention, both the reels of the energy-carrying pipes and the one supporting the cuttings winding line, are driven in rotation by motors with constant torque, so as to allow winding and unwinding. automatic lines and pipes which remain subject to constant tension, regardless of the raising or lowering of the chassis and milling drums.

Dans un mode de réalisation préféré de l'invention, le mât de levage peut être déplacé selon sa direction axiale par rapport à la plate-forme de manière à pouvoir augmenter ou diminuer ainsi son porte-à-faux vers l'avant de l'appareil.In a preferred embodiment of the invention, the lifting mast can be moved in its axial direction relative to the platform so as to be able to thereby increase or decrease its overhang towards the front of the apparatus.

Cette caractéristique permet de réduire la longueur hors-tout de l'appareil selon l'invention pour son déplacement, tout en pouvant amener avec précision le châssis à la verticale d'une tranchée que l'on désire réaliser sans avoir à utiliser le train de roulement.This characteristic makes it possible to reduce the overall length of the apparatus according to the invention for its movement, while being able to bring the chassis with precision to the vertical of a trench which it is desired to achieve without having to use the undercarriage. rolling.

Dans un mode de réalisation préféré, l'appareil selon l'invention comporte, au moins à chacun des quatre coins de sa plate-forme, un vérin muni d'une plaque d'appui qui permet de stabiliser l'appareil pendant son fonctionnement et de le soulever pour le maintenir en appui sur le sol sans qu'il repose sur son train de roulement.In a preferred embodiment, the device according to the invention comprises, at least at each of the four corners of its platform, a jack provided with a support plate which makes it possible to stabilize the device during its operation and lift it to keep it resting on the ground without it resting on its undercarriage.

Grâce à cette caractéristique, on peut facilement changer l'orientation du train de roulement en le faisant pivoter alors qu'il ne repose plus sur le sol. On peut également faire reposer l'appareil sur ses plaques d'appui pour démonter ou réparer le train de roulement dont il est équipé.Thanks to this feature, one can easily change the orientation of the undercarriage by rotating it while it is no longer resting on the ground. You can also rest the device on its support plates to dismantle or repair the undercarriage with which it is equipped.

Dans le but de mieux faire comprendre l'invention, on va en décrire maintenant un mode de réalisation donné à titre d'exemple et ne présentant aucun caractère limitatif en référence au dessin annexé dans lequel :

  • la figure 1 est une vue en perspective d'un appareil selon un mode de réalisation préféré de l'invention,
  • la figure 2 est une vue en élévation d'une variante de l'appareil représenté sur la figure 1, et
  • la figure 3 est une vue de dessus de l'appareil selon l'invention.
In order to better understand the invention, we will now describe an embodiment given by way of example and having no limiting character with reference to the accompanying drawing in which:
  • FIG. 1 is a perspective view of an apparatus according to a preferred embodiment of the invention,
  • FIG. 2 is an elevation view of a variant of the apparatus shown in FIG. 1, and
  • Figure 3 is a top view of the apparatus according to the invention.

Comme on peut le voir sur le dessin, l'appareil selon l'invention, comporte une plate-forme 1 qui repose sur un train de roulement constitué dans le cas présent par des chenilles 2 autour desquelles la plate-forme peut pivoter.As can be seen in the drawing, the device according to the invention comprises a platform 1 which rests on a running gear constituted in this case by tracks 2 around which the platform can pivot.

Selon l'invention, un mât de levage 3 repose sur la plate-forme 1 en étant articulé à son extrémité inférieure 4 autour d'un axe horizontal 5 solidaire de l'arrière de la plate-forme 1 et en étant supporté à son extrémité supérieure 6 par un vérin hydraulique 7 monté à l'avant de la plate-forme 1.According to the invention, a lifting mast 3 rests on the platform 1 by being articulated at its lower end 4 around a horizontal axis 5 secured to the rear of the platform 1 and by being supported at its end upper 6 by a hydraulic cylinder 7 mounted at the front of the platform 1.

On voit qu'en manoeuvrant le vérin hydraulique 7, on peut élever ou abaisser le mât de levage 3 qui bascule ainsi autour de son axe d'articulation 5.It can be seen that by operating the hydraulic cylinder 7, it is possible to raise or lower the lifting mast 3 which thus swings around its hinge axis 5.

Dans le mode de réalisation décrit, l'ensemble constitué par le mât 3, l'axe horizontal 5 et le vérin hydraulique 7 est monté coulissant sur la plate-forme 1, de manière à pouvoir être déplacé vers l'avant de l'appareil dans la direction axiale du mât 3.In the embodiment described, the assembly consisting of the mast 3, the horizontal axis 5 and the hydraulic cylinder 7 is slidably mounted on the platform 1, so that it can be moved towards the front of the device in the axial direction of the mast 3.

A cet effet, l'une des extrémités d'un deuxième vérin hydraulique 8 est solidaire en 9 de la plate-forme 1, tandis que son autre extrémité est solidaire de la partie inférieure du mât.For this purpose, one of the ends of a second hydraulic cylinder 8 is integral at 9 with the platform 1, while its other end is integral with the lower part of the mast.

Ainsi, en actionnant le vérin 8, on déplace le mât 3 vers l'avant ou vers l'arrière de l'appareil, ce qui permet d'augmenter ou de diminuer le porte-à-faux du mât par rapport à l'avant de la plate-forme.Thus, by actuating the jack 8, the mast 3 is moved forwards or backwards of the apparatus, which makes it possible to increase or decrease the overhang of the mast relative to the front of the platform.

En particulier, il est avantageux de réduire au minimum ce porte-à-faux pour transporter l'appareil selon l'invention, tandis qu'il peut être préférable de l'augmenter pour amener l'extrémité supérieure 6 du mât 3 à la verticale de la tranchée que l'on désire réaliser.In particular, it is advantageous to minimize this overhang to transport the device according to the invention, while it may be preferable to increase it to bring the upper end 6 of the mast 3 to the vertical of the trench that one wishes to make.

Un châssis 11 supportant des tambours de fraisage 12 est suspendu à l'avant du mât de levage 3 par l'intermédiaire d'un câble de sustentation 13 qui permet de descendre ou de remonter le châssis 11 et les tambours 12 dans la tranchée en cours de réalisation.A chassis 11 supporting the milling drums 12 is suspended at the front of the lifting mast 3 by means of a lifting cable 13 which makes it possible to lower or raise the chassis 11 and the drums 12 in the current trench of achievement.

Dans le mode de réalisation représenté, un treuil 14 monté à l'extrémité inférieure 4 du mât de levage supporte le câble 13 qui s'étend, comme on le voit sur la figure 2, jusqu'à l'extrémité supérieure 6 du mât 3 pour s'engager sur une poulie de renvoi 15, située à l'intérieur du mât, sur une première poulie d'un moufle 16 qui est solidaire de la partie supérieure du châssis 11, puis sur une poulie d'extrémité 17 montée sur le mât, et enfin sur une seconde poulie du moufle 16, avant d'aboutir à un point fixe auquel il est assujetti à l'extrémité du mât 3.In the embodiment shown, a winch 14 mounted at the lower end 4 of the lifting mast supports the cable 13 which extends, as seen in Figure 2, to the upper end 6 of the mast 3 to engage on a return pulley 15, located inside the mast, on a first pulley of a block 16 which is integral with the upper part of the chassis 11, then on an end pulley 17 mounted on the mast, and finally on a second pulley of the block 16, before reaching a fixed point to which it is subject to the end of the mast 3.

Avantageusement, le treuil 14 comporte un moteur à couple constant 18 qui permet, notamment dans le cas de terrains durs de maintenir constante la force d'appui des tambours de fraisage sur le sol lors de l'excavation, cette force résultant uniquement du poids du châssis et des tambours.Advantageously, the winch 14 comprises a constant torque motor 18 which makes it possible, in particular in the case of hard ground, to maintain constant the bearing force of the milling drums on the ground during excavation, this force resulting solely from the weight of the chassis and drums.

A la manière connue, le treuil 14 comporte également un régulateur de vitesse de défilement du câble 13 grâce auquel on peut limiter la progression du châssis dans le cas de terrains plus tendres.In the known manner, the winch 14 also includes a cable speed regulator 13 with which one can limit the progression of the chassis in the case of softer terrain.

Dans le mode de réalisation représenté, le treuil 14 est assujetti directement au mât de levage 3, ce qui permet de conserver la hauteur à laquelle se trouve le châssis 11 en cas de déplacement du mât 3 sur son rail par actionnement du vérin 8.In the embodiment shown, the winch 14 is directly attached to the lifting mast 3, which makes it possible to keep the height at which the chassis 11 is located in the event of the mast 3 moving on its rail by actuating the jack 8.

Le châssis 11 comporte les différents organes nécessaires à son fonctionnement, à savoir notamment des moteurs hydrauliques pour l'entraînement des tambours de fraisage, et une pompe pour le refoulement jusqu'à la surface du sol des déblais provenant de la désagrégation du sol par les tambours de fraisage.The chassis 11 comprises the various organs necessary for its operation, namely in particular hydraulic motors for driving the milling drums, and a pump for the discharge to the ground surface of the spoil from the disintegration of the ground by the milling drums.

Conformément à l'invention, les différentes canalisations flexibles (non représentées) alimentant le châssis 11 en énergie sont supportées par des groupes d'enrouleurs 19 et 20 qui sont situés l'un derrière l'autre sur la plate-forme 1 au-dessous du mât de levage 3.According to the invention, the various flexible pipes (not shown) supplying the chassis 11 with energy are supported by groups of reels 19 and 20 which are located one behind the other on the platform 1 below. lifting mast 3.

Les groupes d'enrouleurs 19 et 20 peuvent par exemple comporter chacun cinq enrouleurs disposés côte à côte.The groups of reels 19 and 20 may for example each comprise five reels arranged side by side.

Le fait de disposer les deux groupes d'enrouleurs 19 et 20 l'un derrière l'autre permet de limiter leur encombrement en largeur, pour éviter qu'ils ne dépassent du mât 3 en-dessous duquel ils sont logés.The fact of having the two groups of reels 19 and 20 one behind the other makes it possible to limit their overall dimensions in width, to prevent them from protruding from the mast 3 below which they are housed.

Conformément à un mode de réalisation préféré de l'invention, les groupes d'enrouleurs 19 et 20 sont entraînés par un moteur à couple constant qui assure une tension constante des canalisations flexibles, indépendamment du mouvement d'élévation ou d'abaissement du châssis 11 dans la tranchée.In accordance with a preferred embodiment of the invention, the groups of reels 19 and 20 are driven by a constant torque motor which ensures constant tension of the flexible pipes, independently of the movement of raising or lowering of the chassis 11 in the trench.

Les canalisations flexibles pénètrent dans le châssis par des orifices ménagés à la partie supérieure de celui-ci, dont l'emplacement est schématiquement représenté en traits mixtes 22 sur la figure 1 et par des points 22 sur la figure 3.The flexible pipes enter the chassis through orifices provided in the upper part thereof, the location of which is schematically represented by dashed lines 22 in FIG. 1 and by dots 22 in FIG. 3.

Conformément à l'invention, un enrouleur 23 destiné à supporter une conduite flexible 24 de section relativement importante permettant le transport des déblais jusqu'à la surface du sol est également disposé sur la plate-forme 1. Le plan médian de cet enrouleur 23 coupe le plan médian du mât de levage 3 selon l'axe vertical du châssis 11 de manière à réaliser un guidage correct de la conduite flexible 24 et à réduire l'encombrement.According to the invention, a reel 23 intended to support a flexible pipe 24 of relatively large section allowing the transport of the cuttings to the ground surface is also arranged on the platform 1. The median plane of this reel 23 cuts the median plane of the lifting mast 3 along the vertical axis of the chassis 11 so as to correctly guide the flexible pipe 24 and to reduce the size.

L'enrouleur 23 est avantageusement muni d'un moteur à couple constant.The reel 23 is advantageously provided with a constant torque motor.

La conduite flexible 24 est raccordée à la partie supérieure du châssis 11 entre les deux poulies du moufle 16.The flexible pipe 24 is connected to the upper part of the chassis 11 between the two pulleys of the block 16.

Un poste de commande 25 muni d'un siège 26 pour l'opérateur, est disposé sur la plate-forme 1 à l'avant de l'enrouleur 23.A control station 25 provided with a seat 26 for the operator, is arranged on the platform 1 at the front of the reel 23.

Un groupe 27 fournissant l'énergie est situé, conformément à l'invention, à l'extrémité de la plate-forme 1 opposée aux tambours de fraisage 12. Ce groupe permet de fournir l'énergie mécanique électrique et/ou hydraulique qui est nécessaire au fonctionnement de l'appareil.A group 27 supplying the energy is located, in accordance with the invention, at the end of the platform 1 opposite the milling drums 12. This group makes it possible to supply the mechanical electrical and / or hydraulic energy which is necessary during operation of the device.

Dans un mode de réalisation préféré, le groupe 27 comporte deux générateurs hydrauliques destinés à alimenter d'une part les différents éléments placés sur la plate-forme et d'autre part le châssis et les tambours de fraisage.In a preferred embodiment, the group 27 comprises two hydraulic generators intended to supply on the one hand the various elements placed on the platform and on the other hand the chassis and the milling drums.

On évite ainsi l'immobilisation de la machine lorsqu'il se produit une détérioration du circuit hydraulique alimentant le châssis.This avoids immobilization of the machine when there is a deterioration of the hydraulic circuit supplying the chassis.

Dans un mode de réalisation particulier, la plate-forme 1 comporte à chacun de ses quatre coins un vérin hydraulique 28, prolongé par une plaque d'appui 29 à sa partie inférieure.In a particular embodiment, the platform 1 has at each of its four corners a hydraulic cylinder 28, extended by a support plate 29 at its lower part.

Les plaques d'appui 29 peuvent reposer sur le sol pour stabiliser la plate-forme 1 ou même la soulever ce qui permet de faire pivoter les chenilles 2, et changer ainsi l'orientation du train de roulement.The support plates 29 can rest on the ground to stabilize the platform 1 or even lift it which allows the tracks 2 to pivot, and thus change the orientation of the undercarriage.

On voit que, grâce à la disposition de ses éléments constitutifs l'appareil selon l'invention présente un faible encombrement qui permet le plus souvent de le transporter sur route sans avoir à le démonter.It can be seen that, thanks to the arrangement of its constituent elements, the device according to the invention has a small footprint which most often allows it to be transported on the road without having to dismantle it.

Il est bien entendu que les modes de réalisation décrits n'ont été donnés qu'à titre indicatif et qu'ils pourront recevoir toutes modifications désirables sans sortir pour cela du cadre de l'invention.It is understood that the embodiments described have been given for information only and that they may receive any desirable modifications without departing from the scope of the invention.

Claims (6)

1 - Appareil pour creuser dans le sol des tranchées de grande profondeur à l'aide de tambours de fraisage, caractérisé par le fait qu'il comporte en combinaison : une plate-forme (1) supportée par un train de roulement tel que des chenilles (2) ; un mât de levage (3) articulé sur la plate-forme (1) au voisinage de l'une des extrémités de cette dernière et maintenu en position de travail de préférence à l'aide d'au moins un vérin (7) disposé au voisinage de l'autre extrémité de la plate-forme (1) ; un châssis (11) suspendu à l'extrémité haute (6) du mât de levage (3) par l'intermédiaire de câbles (13) ; des tambours de fraisage (12), entraînables en rotation, montés à la partie inférieure du châssis (11) ; un enrouleur à axe horizontal (23) situé sur la plate-forme (1) à côté du mât de levage (3), supportant une conduite flexible (24) pour remonter les déblais depuis le voisinage des tambours de fraisage (12) jusqu'à la surface du sol, le plan médian dudit enrouleur (23) coupant le plan médian du mât de levage (3) sensiblement selon l'axe vertical du châssis (11) ; au moins un groupe d'enrouleurs (19, 20) à axe horizontal situé sur la plate-forme (20) en-dessous du mât de levage (3), supportant des canalisations flexibles qui aboutissent au châssis (11) pour alimenter ce dernier en énergie et pour assurer le positionnement des tambours de fraisage (12) ; un poste de commande (25) de l'appareil, situé sur la plate-forme (1) à côté du mât de levage (3) et devant l'enrouleur (23) de la conduite (24) de remontage des déblais ; et un groupe (27) fournissant l'énergie nécessaire au fonctionnement de l'appareil, situé à l'extrémité de la plate-forme qui est opposée au châssis (11) supportant les tambours de fraisage (12). 1 - Apparatus for digging deep trenches in the ground using milling drums, characterized in that it comprises in combination: a platform (1) supported by a running gear such as tracks (2); a lifting mast (3) articulated on the platform (1) in the vicinity of one of the ends of the latter and maintained in the working position preferably by means of at least one jack (7) disposed at the near the other end of the platform (1); a frame (11) suspended from the upper end (6) of the lifting mast (3) by means of cables (13); milling drums (12), rotatable, mounted at the bottom of the frame (11); a reel with horizontal axis (23) located on the platform (1) next to the lifting mast (3), supporting a flexible pipe (24) for raising the cuttings from the vicinity of the milling drums (12) up to on the ground surface, the median plane of said reel (23) intersecting the median plane of the lifting mast (3) substantially along the vertical axis of the chassis (11); at least one group of reels (19, 20) with horizontal axis located on the platform (20) below the lifting mast (3), supporting flexible pipes which terminate in the chassis (11) to supply the latter in energy and to ensure the positioning of the milling drums (12); a control station (25) of the apparatus, located on the platform (1) next to the lifting mast (3) and in front of the reel (23) of the pipe (24) for re-winding the cuttings; and a group (27) supplying the energy necessary for the operation of the apparatus, situated at the end of the platform which is opposite to the frame (11) supporting the milling drums (12). 2 - Appareil selon la revendication 1, caractérisé par le fait que les enrouleurs des canalisations qui fournissent notamment l'énergie au châssis (11), sont disposés par groupes (19,20) côte à côte sur un même axe en étant solidaires en rotation. 2 - Apparatus according to claim 1, characterized in that the reels of the pipes which supply energy in particular to the chassis (11), are arranged in groups (19,20) side by side on the same axis being integral in rotation . 3 - Appareil selon l'une quelconque des revendications 1 et 2, caractérisé par le fait qu'il comporte au moins deux groupes (19,20) d'enrouleurs disposés l'un derrière l'autre en-dessous du mât de levage (3). 3 - Apparatus according to any one of claims 1 and 2, characterized in that it comprises at least two groups (19,20) of reels arranged one behind the other below the lifting mast ( 3). 4 - Appareil selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que l'un au moins des enrouleurs (19,20,23) disposés sur la plate-forme (1) est entraîné en rotation par un moteur à couple constant. 4 - Apparatus according to any one of claims 1 to 3, characterized in that at least one of the reels (19,20,23) arranged on the platform (1) is rotated by a constant torque motor. 5 - Appareil selon l'une quelconque des revendications 1 à 4, caractérisé par le fait que le mât de levage (3) peut être déplacé selon sa direction axiale par rapport à la plate-forme (1), de manière à pouvoir augmenter ou diminuer le porte-à-faux du mât vers l'avant de la plate-forme (1). 5 - Apparatus according to any one of claims 1 to 4, characterized in that the lifting mast (3) can be moved in its axial direction relative to the platform (1), so as to be able to increase or decrease the mast overhang towards the front of the platform (1). 6 - Appareil selon l'une quelconque des revendications 1 à 5, caractérisé par le fait qu'il comporte, au moins à chacun des quatre coins de sa plate-forme (1), un vérin (28) muni d'une plaque d'appui (29) sur le sol. 6 - Apparatus according to any one of claims 1 to 5, characterized in that it comprises, at least at each of the four corners of its platform (1), a cylinder (28) provided with a plate d 'support (29) on the ground.
EP93402485A 1992-10-09 1993-10-08 Trenching apparatus for digging deep trenches with cutting drums Expired - Lifetime EP0592326B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9212046 1992-10-09
FR9212046A FR2696767B1 (en) 1992-10-09 1992-10-09 Apparatus for digging deep trenches in the ground using milling drums.

Publications (2)

Publication Number Publication Date
EP0592326A1 true EP0592326A1 (en) 1994-04-13
EP0592326B1 EP0592326B1 (en) 1997-12-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP93402485A Expired - Lifetime EP0592326B1 (en) 1992-10-09 1993-10-08 Trenching apparatus for digging deep trenches with cutting drums

Country Status (5)

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EP (1) EP0592326B1 (en)
JP (1) JP3501829B2 (en)
KR (1) KR940009460A (en)
DE (2) DE592326T1 (en)
FR (1) FR2696767B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100497031B1 (en) * 1996-08-28 2005-10-04 꽁빠니 뒤 솔 Apparatus for excavating deep trenches from the ground and excavating trenches by said apparatus
EP4269699A1 (en) * 2022-04-26 2023-11-01 BAUER Maschinen GmbH Machine for use in civil engineering

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2749291B1 (en) * 1996-06-04 1998-09-11 Sol Comp Du DEVICE FOR GUIDING ONE OR MORE FLEXIBLES AT THE END OF AN ARTICULATED MAT OF A LIFTING APPARATUS AND LIFTING APPARATUS PROVIDED WITH SUCH A DEVICE, PARTICULARLY FOR HAVING TRENCHES IN THE GROUND
FR2755709B1 (en) * 1996-11-14 1999-02-05 Sol Comp Du DRILLING DEVICE COMPRISING A DRILLING MACHINE
KR100708627B1 (en) * 2005-09-23 2007-04-18 신운철 Rotary Type Planing Machine
JP5692845B2 (en) 2010-11-04 2015-04-01 黒崎播磨株式会社 Highly rigid ceramic material and manufacturing method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222865B (en) * 1960-12-08 1966-08-11 Ernst Wieger Universal excavator
FR2573475A1 (en) * 1984-11-16 1986-05-23 Soletanche Novel method for mining ore deposits
DE3933168A1 (en) * 1988-10-14 1990-04-19 Bauer Spezialtiefbau Slit wall cutter with counter-rotating cutter wheels - which have rolling tools on their peripheries, overhung in bearings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1222865B (en) * 1960-12-08 1966-08-11 Ernst Wieger Universal excavator
FR2573475A1 (en) * 1984-11-16 1986-05-23 Soletanche Novel method for mining ore deposits
DE3933168A1 (en) * 1988-10-14 1990-04-19 Bauer Spezialtiefbau Slit wall cutter with counter-rotating cutter wheels - which have rolling tools on their peripheries, overhung in bearings

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100497031B1 (en) * 1996-08-28 2005-10-04 꽁빠니 뒤 솔 Apparatus for excavating deep trenches from the ground and excavating trenches by said apparatus
EP4269699A1 (en) * 2022-04-26 2023-11-01 BAUER Maschinen GmbH Machine for use in civil engineering

Also Published As

Publication number Publication date
DE69315942T2 (en) 1998-08-13
EP0592326B1 (en) 1997-12-29
JPH06212663A (en) 1994-08-02
KR940009460A (en) 1994-05-20
FR2696767B1 (en) 1994-12-09
FR2696767A1 (en) 1994-04-15
DE69315942D1 (en) 1998-02-05
DE592326T1 (en) 1994-11-03
JP3501829B2 (en) 2004-03-02

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