EP0177388B1 - Excavating machine for soft or uneven soil, particularly for cleaning ponds, marshy regions or canals - Google Patents

Excavating machine for soft or uneven soil, particularly for cleaning ponds, marshy regions or canals Download PDF

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Publication number
EP0177388B1
EP0177388B1 EP85401699A EP85401699A EP0177388B1 EP 0177388 B1 EP0177388 B1 EP 0177388B1 EP 85401699 A EP85401699 A EP 85401699A EP 85401699 A EP85401699 A EP 85401699A EP 0177388 B1 EP0177388 B1 EP 0177388B1
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EP
European Patent Office
Prior art keywords
excavating machine
machine according
central
wheels
stabiliser
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
EP85401699A
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German (de)
French (fr)
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EP0177388A1 (en
Inventor
Gilbert Bibaut
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Individual
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Individual
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Priority claimed from FR8413585A external-priority patent/FR2569743B1/en
Priority claimed from FR8512147A external-priority patent/FR2586048B2/en
Application filed by Individual filed Critical Individual
Priority to AT85401699T priority Critical patent/ATE40433T1/en
Publication of EP0177388A1 publication Critical patent/EP0177388A1/en
Application granted granted Critical
Publication of EP0177388B1 publication Critical patent/EP0177388B1/en
Expired legal-status Critical Current

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    • 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
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • E02F9/024—Travelling-gear, e.g. associated with slewing gears with laterally or vertically adjustable wheels or tracks
    • 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
    • E02F9/02—Travelling-gear, e.g. associated with slewing gears
    • E02F9/028—Travelling-gear, e.g. associated with slewing gears with arrangements for levelling the machine
    • 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
    • E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs

Definitions

  • the subject of the invention is an earthmoving machine in soft or highly uneven terrain, in particular for the cleaning and dredging of ponds, marshes or canals.
  • Wheeled vehicles have very limited possibilities due to the risk of getting bogged down. Dredges can only operate on bodies of water with sufficient depth, which is not often the case in ponds, marshes or canals.
  • European patent 0 017 593 of the applicant describes an earth-moving machine in soft ground, in particular for the cleaning and dredging of ponds, marshes or canals of the type consisting of a carrying structure provided with support members such as wheels or skids and lateral stabilizers and equipped with at least one earthmoving member such as a shovel, this member being controlled from a cockpit on the carrying structure.
  • These known devices have the drawback of frequently requiring the presence of two operators.
  • movement can practically only be done in a straight line.
  • the subject of the invention is a machine of the indicated type which does not have the aforementioned drawbacks.
  • the device according to the invention is particularly remarkable in that the central stabilizer is integral with a control carriage moving between two side members of the carrying structure, at least two support members being liftable and mounted on telescopic arms ensuring the translation control of these organs.
  • the machine comprises four support members such as wheels, two of which are telescopic, these four members being provided with individual lifting controls.
  • the machine consists essentially of a support structure or chassis 1 comprising two U-shaped section beams 1 ′, 1 ".
  • floats 2 of reduced dimensions are fixed on the framework, for example by welding, to stiffen the structure and avoid its buckling
  • the floats 2 act simply as reinforcing elements and are not dimensioned to ensure the buoyancy of the craft.
  • One or more earthworks for example excavators, are mounted on the supporting structure.
  • Such a member is shown schematically in Figures 13 and 14. It can be of any suitable type.
  • the machine rests on the ground by four support members 3 ', 3 ", 8', 8" shown in the form of wheels, but which can also be constituted, for example, by support pads.
  • the wheel lifting control is provided by hydraulic cylinders 5, 6.
  • the wheels 6 ', 6" are driven and the wheels 3' , 3 "are simple non-driving support wheels.
  • said wheels 3 ', 3" could also, if necessary, be coupled to the driving wheels 8', 8 ".
  • the stability of the machine during work is ensured by stabilizers specially provided for this purpose.
  • These members include a central stabilizer 10 and two lateral stabilizers 13 mounted at the rear end of the machine.
  • the central stabilizer 10 is constituted by an articulated arm provided at its lower part with a shoe 9 resting on the ground.
  • the arm of the central stabilizer 10 is integral with a carriage 12 moving by means of rollers 12 'in the longitudinal members 1', 1 "of the support structure 1.
  • the carriage 12 is preferably hydraulically controlled.
  • central stabilizer 10 can be raised and lowered by means of a hydraulic cylinder 11.
  • the lateral stabilizers 13 are mounted on triangular supports 15, preferably tubular, and are controlled by hydraulic cylinders 14.
  • Figures 6 to 12 show a step of moving the machine.
  • the machine rests on its wheels 3 ′, 3 ", 8 ′, 8" as well as on the central stabilizer 10 and the lateral stabilizers 13.
  • FIG. 7 we start by raising the front wheels 8 ', 8 "as well as the lateral stabilizers 13.
  • the carrier structure 1 of the machine is then moved using the arm 16 of the shovel which bears on the ground (FIG. 8).
  • the carriage 12 and the central stabilizer 10 then remain in the position they originally occupied.
  • the front wheels 8 ', 8 "and the lateral stabilizers 13 are then brought back to the ground (FIG. 9).
  • the central stabilizer 10 Figure 10
  • It is moved with the carriage 12 to the front of the machine ( Figure 11).
  • Figures 15,16 and 17 show a first possibility of maneuver to rotate the machine.
  • the machine rests essentially on the central stabilizer 10 constituting a first fulcrum and on the end of the arm 16 constituting a second fulcrum.
  • the orientation control of the arm 16 is used to rotate the support structure or chassis 1 which comes into alignment with the arm.
  • the wheels 3 ', 3 ", 8.8" and the rear stabilizers 13 are slightly raised (about 10 cm) to allow movement, while being ready to intervene to maintain the balance of the machine.
  • Figures 18, 19 and 20 show a second possibility of maneuvering to rotate the machine.
  • the telescopic arms 7 are first folded and their wheels 8 ', 8 "rest on the ground.
  • the arm 16 of the shovel is positioned to correspond to the axis of the position which the chassis must reach. rotation of the arm is put into action and the wheels 8 ′ and 8 ′′ move accordingly, the telescopic arm 7 of the wheel 8 being unfolded.
  • the 3 'and 3 "wheels are very slightly raised (about 10 cm) to be ready to maintain balance and avoid overhang of the machine.
  • FIG. 13 shows the machine placed on a ditch.
  • the central stabilizer 10 can rest by its shoe 9 on the bottom of the ditch and constitute a secure and resistant point of support. The machine can then work in the vicinity of the ditch without the need to establish an extended track.
  • the machine can easily work in slopes or form uneven and strewn with obstacles.
  • the wheel lift controls allow the wheels to be placed at the desired level and the central stabilizer also constitutes a secure and resistant fulcrum being assisted by the lateral stabilizers.
  • the displacement on hard ground is carried out using two driving wheels 8 ', 8 "independent of each other. It is then necessary that the non-driving wheels 3', 3" and the lateral stabilizers 13 are folded .
  • the machine rests on the two driving wheels 8 ', 8 “and a removable idler wheel 17. To turn the machine (figure 22 and figure 23), the wheel 8" is stopped and the wheel 8 is turned '. The rotation takes place around an axis passing through this wheel and it is acoompag Avenue by the idler wheel 17.
  • Figures 24 and 25 show an alternative embodiment in which the machine is provided with large floats 19 allowing it to move on water bodies.
  • the wheels 8 ′, 8 “must be replaced by shoes 18 and the stabilizers 13 extended.
  • the central stabilizer 10 is articulated on the carriage 12 and consists of two elementary stabilizers 10 i , 10 2 , themselves constituted by an arm provided at its lower part with a support shoe 9 1 , 9 2 resting on the ground.
  • the arms 10 1 , 10 2 are actuated by hydraulic control cylinders 11 1 , 11 2 '
  • the figure shows in line full elementary stabilizers in the folded position. Their support position on the ground is shown in phantom.
  • FIG. 27 represents another exemplary embodiment of the invention in which the elementary central stabilizer 10 is linked by articulation to an elongated central element 20 forming a hollow box.
  • this central box 20 moves a slide 21 linked by articulation to the other elementary central stabilizer 10 2 .
  • the elementary stabilizers are shown coming full in their folded position and in phantom in their support position on the ground.
  • the machine can move easily, by relying on the shoes 9 1 and 9 2 , on relatively hard or uneven ground, for example in mountainous areas, the banks with steep slopes and all obstacles to climb during work.
  • the machine thus equipped can advance without having to involve the boom of an earthmoving member.
  • the central box provided in the embodiment shown in Figure 27 allows the machine to progress in low lift terrain, especially in ponds, canals, rivers, ports, etc.
  • the surface of the box makes it possible to use only very slightly the supporting soil. The box thus avoids damaging the bottom and prevents the piercing of the waterproof layer which often plays an important role.
  • the lateral stabilizers can be omitted.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)

Description

L'invention a pour objet un engin de terrassement en terrain mou ou fortement accidenté notamment pour le curage et le dragage des étangs, marais ou canaux.The subject of the invention is an earthmoving machine in soft or highly uneven terrain, in particular for the cleaning and dredging of ponds, marshes or canals.

On connaît déjà de nombreux engins de terrassement tels qu'engins sur roues et dragues destinés à ce genre de travaux. Les engins sur roues ont des possibilités très limitées en raison du risque d'enlisement. Les dragues ne peuvent opérer que sur des plans d'eau ayant une profondeur suffisante, ce qui n'est pas souvent le cas dans les étangs, marais ou canaux.Numerous earthmoving machines are already known, such as wheeled vehicles and dredges intended for this type of work. Wheeled vehicles have very limited possibilities due to the risk of getting bogged down. Dredges can only operate on bodies of water with sufficient depth, which is not often the case in ponds, marshes or canals.

Le brevet européen 0 017 593 du déposant décrit un engin de terrassement en terrain mou, notamment pour le curage et le dragage des étangs, marais ou cannaux du type constitué d'une structure porteuse munie d'organes d'appui tels que roues ou patins et de stabilisateurs latéraux et équipée d'au moins un organe de terrassement tel qu'une pelle, cet organe étant commandé d'une cabine de pilotage sur la structure porteuse. Ces engins connus présentent l'inconvénient de nécessiter fréquemment la présence de deux opérateurs. Par ailleurs, en terrain difficile, le déplacement ne peut pratiquement se faire qu'en ligne droite.European patent 0 017 593 of the applicant describes an earth-moving machine in soft ground, in particular for the cleaning and dredging of ponds, marshes or canals of the type consisting of a carrying structure provided with support members such as wheels or skids and lateral stabilizers and equipped with at least one earthmoving member such as a shovel, this member being controlled from a cockpit on the carrying structure. These known devices have the drawback of frequently requiring the presence of two operators. In addition, in difficult terrain, movement can practically only be done in a straight line.

On connaît également par le brevet américain 3 335 809 un engin de terrassement monté sur roues qui est constitué d'un châssis en deux parties pouvant coulisser horizontalement l'une sur l'autre. On prévoit auprès de chacune des roues, des dispositifs d'ancrage dans le sol qui permettent de fixer une roue pour permettre le roulement de l'autre roue sous l'effet du coulissement des deux parties du châssis l'une dans l'autre. Un tel engin n'est pas approprié pour le déplacement en terrain mou ou fortement accidenté, car il faut que ses roues puissent rouler librement. Par ailleurs, ce mode de déplacement ne permet que des déplacements en ligne droite.Also known from US Patent 3,335,809 is an earth-moving machine mounted on wheels which consists of a chassis in two parts which can slide horizontally one over the other. Provision is made with each of the wheels for anchoring devices in the ground which make it possible to fix a wheel to allow the rolling of the other wheel under the effect of the sliding of the two parts of the chassis one inside the other. Such a machine is not suitable for moving in soft or rough terrain, because its wheels must be able to roll freely. In addition, this mode of movement only allows movements in a straight line.

L'invention a pour objet un engin du type indiqué qui ne présente pas les inconvénients précités.The subject of the invention is a machine of the indicated type which does not have the aforementioned drawbacks.

L'engin selon l'invention est notamment remarquable en ce que le stabilisateur central est solidaire d'un chariot de commande se déplaçant entre deux longerons de la structure porteuse, au moins deux organes d'appui étant relevables et montés sur des bras téléescopiques assurant la commande de translation de ces organes.The device according to the invention is particularly remarkable in that the central stabilizer is integral with a control carriage moving between two side members of the carrying structure, at least two support members being liftable and mounted on telescopic arms ensuring the translation control of these organs.

Suivant un mode de réalisation, l'engin comporte quatre organes d'appui tels que roues dont deux sont télescopiques, ces quatre organes étant munis de commandes individuelles de relevage.According to one embodiment, the machine comprises four support members such as wheels, two of which are telescopic, these four members being provided with individual lifting controls.

Il est avantageux de prévoir des commandes hydrauliques pour la translation du chariot, pour les bras télescopiques et pour le relevage des organes d'appui.It is advantageous to provide hydraulic controls for the translation of the carriage, for the telescopic arms and for the lifting of the support members.

Un engin selon l'invention est représenté à titre d'exemple non limitatif sur les figures ci-jointes, dans lesquelles:

  • - la figure 1 est une vue en plan de l'engin conforme à l'invention après enlèvement des organes de terrassement;
  • - la figure 2 est une vue en élévation latérale de l'engin dans la direction de la flèche F de la figure 1;
  • - la figure 3 est une vue en coupe longitudinale suivant la ligne 3 - 3 de la figure 1 ;
  • - la figure 4 est une vue en élévation d'extrémité montrant les stabilisateurs latéraux;
  • - la figure 5 est une vue en coupe transversale;
  • - les figures 6 à 12 sont des vues latérales schématiques représentant une étape de déplacement de l'engin;
  • - la figure 13 est un vue d'extrémité schématique représentant l'engin travaillant sur un fossé;
  • - la figure 14 est une vue d'extrémité schématique représentant l'engin travaillant sur un talus;
  • - les figures 15 à 17 sont des vues schématiques représentant une première possibilité de rotation de l'engin;
  • - les figures 18 à 20 sont des vues schématiques représentant une seconde possibilité de rotation de l'engin;
  • - la figure 21 est une vue en élévation latérale représentant l'engin équipé d'une roue indépendante amovible;
  • - la figure 22 est une vue schématique montrant la position de déplacement sur sol dur de l'engin représenté sur la figure 21;
  • - la figure 23 est une vue similaire à la figure 22 représentant la rotation de l'engin;
  • - la figure 24 est une coupe transversale représentant l'engin équipé de flotteurs assurant sa flottaison;
  • - la figure 25 est une vue en plan correspondant à la figure 24.
  • - la figure 26 est une vue en élévation latérale d'un premier exemple de réalisation de l'engin suivant l'invention;
  • - la figure 27 est une vue similaire à la figure 26 représentant un second exemple de réalisation de l'engin suivant l'invention.
A machine according to the invention is shown by way of nonlimiting example in the attached figures, in which:
  • - Figure 1 is a plan view of the machine according to the invention after removal of the earthworks;
  • - Figure 2 is a side elevational view of the machine in the direction of arrow F in Figure 1;
  • - Figure 3 is a longitudinal sectional view along line 3 - 3 of Figure 1;
  • - Figure 4 is an end elevational view showing the lateral stabilizers;
  • - Figure 5 is a cross-sectional view;
  • - Figures 6 to 12 are schematic side views showing a step of moving the machine;
  • - Figure 13 is a schematic end view showing the machine working on a ditch;
  • - Figure 14 is a schematic end view showing the machine working on an embankment;
  • - Figures 15 to 17 are schematic views showing a first possibility of rotation of the machine;
  • - Figures 18 to 20 are schematic views showing a second possibility of rotation of the machine;
  • - Figure 21 is a side elevational view showing the machine equipped with a removable independent wheel;
  • - Figure 22 is a schematic view showing the position of movement on hard ground of the machine shown in Figure 21;
  • - Figure 23 is a view similar to Figure 22 showing the rotation of the machine;
  • - Figure 24 is a cross section showing the machine equipped with floats ensuring its flotation;
  • - Figure 25 is a plan view corresponding to Figure 24.
  • - Figure 26 is a side elevational view of a first embodiment of the machine according to the invention;
  • - Figure 27 is a view similar to Figure 26 showing a second embodiment of the machine according to the invention.

Dans l'exemple de réalisation choisi et tel qu'illustré notamment sur les figures 1 à 5, l'engin est constitué essentiellement d'une structure porteuse ou châssis 1 comportant deux longerons à section en forme de U 1', 1". Des flotteurs 2 de dimensions réduites sont fixés sur l'ossature, par exemple par soudage, pour raidir la structure et éviter son voilement. Les flotteurs 2 agissent simplement comme des éléments de renfort et ne sont pas dimensionnés pour assurer la flottaison de l'engin.In the embodiment chosen and as illustrated in particular in FIGS. 1 to 5, the machine consists essentially of a support structure or chassis 1 comprising two U-shaped section beams 1 ′, 1 ". floats 2 of reduced dimensions are fixed on the framework, for example by welding, to stiffen the structure and avoid its buckling The floats 2 act simply as reinforcing elements and are not dimensioned to ensure the buoyancy of the craft.

Un ou plusieurs organes de terrassement, par exemple des pelles excavatrices, sont montés sur la structure porteuse. Un tel organe est représenté schématiquement sur les figures 13 et 14. Il peut être d'un type approprié quelconque.One or more earthworks, for example excavators, are mounted on the supporting structure. Such a member is shown schematically in Figures 13 and 14. It can be of any suitable type.

L'engin repose sur le sol par quatre organes d'appui 3', 3", 8', 8" représenté sous forme de roues, mais qui peuvent aussi être constitués, par exemple, par des patins d'appui. Les roues 8', 8" qui, pour les besoins de la description seront considérées dans la suite comme les roues avant, sont montées sur des bras télescopiques 7, de préférence à comande hydraulique. Les quatre roues 3', 3", 8', 8" sont montées de manière à pouvoir être relevées. Dans l'exemple de réalisation représeté, la commande de relevage des roues est assurée par des vérins hydrauliques 5, 6. Les roues 6', 6" sont motrices et les roues 3', 3" sont de simples roues d'appui non motrices. Toutefois, il va de soi que les dites roues 3', 3" pourraient également, si nécessaire, être couplées aux roues motrices 8', 8".The machine rests on the ground by four support members 3 ', 3 ", 8', 8" shown in the form of wheels, but which can also be constituted, for example, by support pads. The wheels 8 ', 8 "which, for the purposes of the description will be considered hereinafter as the front wheels, are mounted on telescopic arms 7, preferably with hydraulic control. The four wheels 3', 3", 8 ' , 8 "are mounted so that they can be raised. In the exemplary embodiment shown, the wheel lifting control is provided by hydraulic cylinders 5, 6. The wheels 6 ', 6" are driven and the wheels 3' , 3 "are simple non-driving support wheels. However, it goes without saying that said wheels 3 ', 3" could also, if necessary, be coupled to the driving wheels 8', 8 ".

La stabilité de l'engin en cours de travail est assurée par des stabilisateurs spécialement prévus à cet effet. Ces organes comprenent un stabilisateur central 10 et deux stabilisateurs latéraux 13 montés à l'extrémité arrière de l'engin. Le stabilisateur central 10 est constitué par un bras articulé muni à sa partie inférieure d'un sabot 9 reposant sur le sol. Le bras du stabilisateur central 10 est solidaire d'un chariot 12 se déplaçant au moyen de galets 12' dans les longerons 1', 1" de la structure porteuse 1. Le chariot 12 est, de préférence, à commande hydraulique. Le bras du stabilisateur central 10 peut être relevé et abaissé au moyen d'un vérin hydraulique 11. Les stabilisateurs latéraux 13 sont montés sur des supports triangulaires 15, de préférence tubulaires, et sont commandés par des vérins hydrauliques 14.The stability of the machine during work is ensured by stabilizers specially provided for this purpose. These members include a central stabilizer 10 and two lateral stabilizers 13 mounted at the rear end of the machine. The central stabilizer 10 is constituted by an articulated arm provided at its lower part with a shoe 9 resting on the ground. The arm of the central stabilizer 10 is integral with a carriage 12 moving by means of rollers 12 'in the longitudinal members 1', 1 "of the support structure 1. The carriage 12 is preferably hydraulically controlled. central stabilizer 10 can be raised and lowered by means of a hydraulic cylinder 11. The lateral stabilizers 13 are mounted on triangular supports 15, preferably tubular, and are controlled by hydraulic cylinders 14.

Les figures 6 à 12 représentent une étape de déplacement de l'engin. Suivant la figure 6, l'engin repose sur ses roues 3', 3", 8', 8" ainsi que sur le stabilisateur central 10 et les stabilisateurs latéraux 13. Conformément à la figure 7, on commence par relever les roues avant 8', 8" ainsi que les stabilisateurs latéraux 13. On déplace ensuite la structure porteuse 1 de l'engin à l'aide du bras 16 de la pelle qui prend appui sur le sol (figure 8). Le chariot 12 et le stabilisateur central 10 restent alors dans la position qu'ils occupaient initialement. On ramène ensuite les roues avant 8', 8" ainsi que les stabilisateurs latéraux 13 sur le sol (figure 9). On relève le stabilisateur central 10 (figure 10). On le déplace avec le chariot 12 à l'avant de l'engin (figure 11). On abaisse finalement le stabilisateur central 10 (figure 12) et l'engin se retrouve dans une situation similaire à celle de la figure 6, mais en ayant avancé d'un pas.Figures 6 to 12 show a step of moving the machine. According to FIG. 6, the machine rests on its wheels 3 ′, 3 ", 8 ′, 8" as well as on the central stabilizer 10 and the lateral stabilizers 13. In accordance with FIG. 7, we start by raising the front wheels 8 ', 8 "as well as the lateral stabilizers 13. The carrier structure 1 of the machine is then moved using the arm 16 of the shovel which bears on the ground (FIG. 8). The carriage 12 and the central stabilizer 10 then remain in the position they originally occupied. The front wheels 8 ', 8 "and the lateral stabilizers 13 are then brought back to the ground (FIG. 9). We note the central stabilizer 10 (Figure 10). It is moved with the carriage 12 to the front of the machine (Figure 11). We finally lower the central stabilizer 10 (Figure 12) and the machine finds itself in a situation similar to that of Figure 6, but having advanced a step.

Les figures 15,16 et 17 représentent une première possibilité de manoeuvre pour faire tourner l'engin. L'engin repose essentiellement sur le stabilisateur central 10 constituant un premier point d'appui et sur l'extrémité du bras 16 constituant un second point d'appui. La commande d'orientation du bras 16 est utilisée pour faire tourner la structure porteuse ou châssis 1 qui vient dans l'alignement du bras. Les roues 3', 3", 8,8" ainsi que les stabilisateurs arrière 13 sont légèrement relevés (10 cm environ) pour permettre le mouvement, tout en étant prêts à intervenir pour maintenir l'équilibre de l'engin.Figures 15,16 and 17 show a first possibility of maneuver to rotate the machine. The machine rests essentially on the central stabilizer 10 constituting a first fulcrum and on the end of the arm 16 constituting a second fulcrum. The orientation control of the arm 16 is used to rotate the support structure or chassis 1 which comes into alignment with the arm. The wheels 3 ', 3 ", 8.8" and the rear stabilizers 13 are slightly raised (about 10 cm) to allow movement, while being ready to intervene to maintain the balance of the machine.

Les figures 18, 19 et 20 représentent une seconde possibilité de manoeuvre pour faire tourner l'engin.Figures 18, 19 and 20 show a second possibility of maneuvering to rotate the machine.

Les bras télescopiques 7 sont d'abord repliés et leurs roues 8', 8" s'appuient sur le sol. Le bras 16 de la pelle est positionné pour correspondre à l'axe de la position que doit atteindre le châssis. La commande de rotation du bras est mise en action et les roues 8' et 8" se déplacent en conséquence, le bras télescopique 7 de la roue 8 étant déplié. Les roues 3' et 3" sont très légèrement relevées (10 cm environ) pour être prêtes à maintenir l'équilibre et à éviter le porte- à-faux de l'engin.The telescopic arms 7 are first folded and their wheels 8 ', 8 "rest on the ground. The arm 16 of the shovel is positioned to correspond to the axis of the position which the chassis must reach. rotation of the arm is put into action and the wheels 8 ′ and 8 ″ move accordingly, the telescopic arm 7 of the wheel 8 being unfolded. The 3 'and 3 "wheels are very slightly raised (about 10 cm) to be ready to maintain balance and avoid overhang of the machine.

L'engin conforme à l'invention a pour avantage de pouvoir travailler avec une emprise réduite. La figure 13 montre l'engin disposé sur un fossé. Le stabilisateur central 10 peut reposer par son sabot 9 sur le fond du fossé et constituer un point d'appui sur et résistant. L'engin peut alors travailler au voisinage du fossé sans qu'il soit nécessaire d'établir une piste étendue.The device according to the invention has the advantage of being able to work with a reduced footprint. Figure 13 shows the machine placed on a ditch. The central stabilizer 10 can rest by its shoe 9 on the bottom of the ditch and constitute a secure and resistant point of support. The machine can then work in the vicinity of the ditch without the need to establish an extended track.

Comme représenté sur la figure 14, l'engin peut aisément travailler dans les terrains en pentes ou forment accidentés et jonchés d'obstacles. Les commandes de relevage des roues permettent de disposer celles-ci au niveau voulu et le stabilisateur central constitue encore un point d'appui sûr et résistant en étant assisté par par les stabilisateurs latéraux.As shown in Figure 14, the machine can easily work in slopes or form uneven and strewn with obstacles. The wheel lift controls allow the wheels to be placed at the desired level and the central stabilizer also constitutes a secure and resistant fulcrum being assisted by the lateral stabilizers.

Le déplacement sur sol dur est effectué à l'aide des deux roues motices 8', 8" indépendantes l'une de l'autre. Il est alors nécessaire que les roues non motrices 3', 3" et les stabilisateurs latéraux 13 soient repliés. L'engin s'appuie sur les deux roues motrices 8', 8" et une roue folle amovible 17. Pour faire tourner l'engin (figure 22 et figure 23), on arrête la roue 8" et on fait tourner la roue 8'. La rotation a lieu autour d'un axe passant par cette roue et elle est acoompagnée par la roue folle 17. On peut également faire tourner l'engin sur les quatre roues 3', 8', 3" et 8", lorsque celles-ci sont toutes les quatre motrices.The displacement on hard ground is carried out using two driving wheels 8 ', 8 "independent of each other. It is then necessary that the non-driving wheels 3', 3" and the lateral stabilizers 13 are folded . The machine rests on the two driving wheels 8 ', 8 "and a removable idler wheel 17. To turn the machine (figure 22 and figure 23), the wheel 8" is stopped and the wheel 8 is turned '. The rotation takes place around an axis passing through this wheel and it is acoompagnée by the idler wheel 17. One can also make turn the machine on the four wheels 3 ', 8', 3 "and 8", when these- these are all four driving forces.

Les figures 24 et 25 représentent une variante de réalisation dans laquelle on munit l'engin de grands flotteurs 19 lui permettant de se déplacer sur des plans d'eau. Dans ce cas, lors du montage des flotteurs 19, on doit remplacer les roues 8', 8" par des sabots 18 et rallonger les stabilisateurs 13.Figures 24 and 25 show an alternative embodiment in which the machine is provided with large floats 19 allowing it to move on water bodies. In this case, when assembling the floats 19, the wheels 8 ′, 8 "must be replaced by shoes 18 and the stabilizers 13 extended.

Lorsque l'engin doit opérer sur des sols de structures différentes (mou et dur), il peut être avantageux de renforcer sa stabilisation sans pour autant changer de châssis. Dans un tel cas, et comme illustré en figure 26, le stabilisateur central 10 est articulé sur le chariot 12 et est constitué de deux stabilisateurs élémentaires 10i, 102, eux-mêmes constitués d'un bras muni à sa partie inférieure d'un sabot d'appui 91, 92 reposant sur le sol. Les bras 101, 102 sont actionnés par des vérins hydrauliques de commande 111, 112' La figure représente en trait plein les stabilisateurs élémentaires en position repliée. Leur position d'appui sur le sol est représentée en trait mixte.When the machine must operate on soils with different structures (soft and hard), it may be advantageous to reinforce its stabilization without changing the chassis. In such a case, and as illustrated in FIG. 26, the central stabilizer 10 is articulated on the carriage 12 and consists of two elementary stabilizers 10 i , 10 2 , themselves constituted by an arm provided at its lower part with a support shoe 9 1 , 9 2 resting on the ground. The arms 10 1 , 10 2 are actuated by hydraulic control cylinders 11 1 , 11 2 ' The figure shows in line full elementary stabilizers in the folded position. Their support position on the ground is shown in phantom.

La figure 27 représente un autre exemple de réalisation de l'invention dans lequel le stabilisateur central élémentaire 10, est lie par articulation à un élément central allongé 20 formant un caisson creux. Dans ce caisson central 20, se déplace un coulisseau 21 lié par articulation à l'autre stabilisateur central élémentaire 102. Comme précédemment, les stabilisateurs élémentaires sont représentés entrait plein dans leur position repliée et en trait mixte dans leur position d'appui sur le sol.FIG. 27 represents another exemplary embodiment of the invention in which the elementary central stabilizer 10 is linked by articulation to an elongated central element 20 forming a hollow box. In this central box 20, moves a slide 21 linked by articulation to the other elementary central stabilizer 10 2 . As before, the elementary stabilizers are shown coming full in their folded position and in phantom in their support position on the ground.

Dans l'exemple de réalisation représente sur la figure 26, l'engin peut se déplacer aisément, en s'appuyant sur les sabots 91 et 92, sur les sols relativement durs ou accidentés, par exemple dans les zones montagneuses, les berges à fortes pentes et tous les obstacles à escalader lors des travaux. L'engin ainsi équipé peut avancer sans que l'on ait à faire intervenir la flèche d'un organe de terrassement.In the embodiment shown in Figure 26, the machine can move easily, by relying on the shoes 9 1 and 9 2 , on relatively hard or uneven ground, for example in mountainous areas, the banks with steep slopes and all obstacles to climb during work. The machine thus equipped can advance without having to involve the boom of an earthmoving member.

Le caisson central prévu dans l'exemple de réalisation représenté sur la figure 27 permet à l'engin de progresser dans les terrains de faible portance, notamment dans les étangs, les canaux, les rivières, les ports, etc. La surface du caisson permet de ne solliciter que très faiblement le sol d'appui. Le caisson évite ainsi d'abimer le fond et empêche le percement de la couche étanche qui joue souvent un rôle important.The central box provided in the embodiment shown in Figure 27 allows the machine to progress in low lift terrain, especially in ponds, canals, rivers, ports, etc. The surface of the box makes it possible to use only very slightly the supporting soil. The box thus avoids damaging the bottom and prevents the piercing of the waterproof layer which often plays an important role.

Ces avantages sont obtenus dans tous les cas sans changer la structure porteuse de l'engin. Il suffit de prévoir deux articulations sur le chariot 12. Les flotteurs qui assurent le renfort de la structure conservent leurs fonctions et peuvent, si les travaux à exécuter l'exigent, être dimensionnés pour assurer la flottaison complète de l'engin.These advantages are obtained in all cases without changing the load-bearing structure of the machine. It suffices to provide two articulations on the carriage 12. The floats which provide the reinforcement of the structure retain their functions and can, if the work to be carried out require it, be sized to ensure the complete flotation of the craft.

Dans certains cas, avec le stabilisateur central suivant le mode de réalisation des figures 26 et 27, on peut supprimer les stabilisateurs latéraux.In certain cases, with the central stabilizer according to the embodiment of FIGS. 26 and 27, the lateral stabilizers can be omitted.

Claims (13)

1. Excavating machine for soft ground, notably for cleaning and dredging ponds, marshes, or canals, of the type constituted by a carrier structure (1) equipped with support members (3', 3", 8', 8") such as wheels or runners and with lateral stabilisers (13), and equipped with at least one excavating member such as a shovel, this member being controlled from a control cabin mounted on the carrier structure (1), characterised in that it comprises a central stabiliser (10) integral with a control carriage (12) which is displaceable between two side rails (1', 1") of the carrier structure (1), and in that at least two support members (8', 8") are liftable and are mounted on telescopic arms (7) which ensure the translation of these members.
2. Excavating machine according to claim 1, characterized in that it comprises four support members (3', 3", 8', 8") such as wheels, two of which are telescopic, these four members being provided with individual lifting controls (5, 6).
3. Excavating machine according to any one of the claims 1 and 2, characterised in that the carriage (12) is displaced with the aid of rollers (12') and is actuated by a hydraulic control.
4. Excavating machine according to any one of the claims 1 to 3, characterised in that the telescopic arms (7) the lifting of the support members (3', 3", 8', 8") and also the central stabiliser (10) and the lateral stabilisers (13) are controlled by hydraulic jacks (5, 6, 11, 14).
5. Excavating machine according to one of the claims 1 to 4, characterised in that at least two support members (3', 3", 8', 8") are removable.
6. Excavating machine according to any one of the claims 1 to 5, characterized in that it is fitted with a removable idle wheel (17).
7. Excavating machine according to any one of the claims 1 to 6, characterized in that the support members are constituted by wheels (3' 3", 8', 8"), at least two (8', 8") of which are driving wheels.
8. Excavating machine according to any one of the claims 1 to 7, characterised in that it comprises removable floats (10), of sufficient dimensions to ensure its flotation.
9. Excavating machine according to claim 1, characterised in that the central stabiliser (10) is constituted by two elementary stabilisers (101, 102) which are integral with the control carriage (12).
10. Excavating machine according to claim 9, characterised in that each central elementary stabiliser (101, 102) is articulated on the control carriage (12).
11. Excavating machine according to claims 9 and 10, characterised in that each central elementary stabiliser (101,102) comprises, on its lower part, an arm which is provided with a support shoe (91, 92).
12. Excavating machine according to any one of the claims 9 to 11, characterized in that the arm of one of the central elementary stabilisers (101) is connected by articulation to a central caisson (20) in which there is displaced a slider (21) which is connected by articulation to the arm of the other central elementary stabiliser (102).
13. Excavating machine according to any one of the claims 9 to 11, characterized in that each central elementary stabiliser (101, 102) is controlled by a hydraulic jack (11, 112).
EP85401699A 1984-09-03 1985-08-30 Excavating machine for soft or uneven soil, particularly for cleaning ponds, marshy regions or canals Expired EP0177388B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85401699T ATE40433T1 (en) 1984-09-03 1985-08-30 GRASS MACHINE FOR SOFT OR UNEVEN GROUND, ESPECIALLY FOR CLEANING POND, MARSH OR CANALS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR8413585A FR2569743B1 (en) 1984-09-03 1984-09-03 EARTHMOVING MACHINE ON SOFT OR ACCIDENTAL TERRAIN, PARTICULARLY FOR THE CURING OF PONDS, MARSHES OR CANALS
FR8413585 1984-09-03
FR8512147 1985-08-08
FR8512147A FR2586048B2 (en) 1985-08-08 1985-08-08 EARTHMOVING MACHINE ON SOFT OR ACCIDENTAL TERRAIN, PARTICULARLY FOR THE CURING OF PONDS, MARSHES OR CANALS

Publications (2)

Publication Number Publication Date
EP0177388A1 EP0177388A1 (en) 1986-04-09
EP0177388B1 true EP0177388B1 (en) 1989-01-25

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EP85401699A Expired EP0177388B1 (en) 1984-09-03 1985-08-30 Excavating machine for soft or uneven soil, particularly for cleaning ponds, marshy regions or canals

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EP (1) EP0177388B1 (en)
DE (1) DE3567925D1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8811204D0 (en) * 1988-05-11 1988-06-15 Danzoe Eng Ltd Improvements in/relating to support & manipulating apparatus
NL9401437A (en) * 1994-09-02 1995-11-01 Mechanical Services Gravedigger
IT1289088B1 (en) * 1996-03-13 1998-09-25 Fki Fai Komatsu Ind Spa STABILIZING FOOT WITH VARIABLE GEOMETRY, PARTICULARLY FOR EARTH-MOVING VEHICLES.
CA2185057C (en) * 1996-09-09 2010-07-27 Tony Dimillo Tunnel digging machine
FR2775308B1 (en) * 1998-02-20 2000-03-24 S D T O MACHINE FOR LAYING CABLES OR THE LIKE IN THE GROUND
FR2856711B1 (en) * 2003-06-30 2007-04-06 Atemi VEHICLE OF PUBLIC WORKS
CN111779056A (en) * 2020-07-06 2020-10-16 薛燕芬 Automatic dredging device for road drainage channel

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0017593A1 (en) * 1979-04-10 1980-10-15 Gilbert Bibaut Engine for cleaning ponds, marshes or canals

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GB813704A (en) * 1955-06-15 1959-05-21 Auxiliaire De L Entpr Auxen So Improvements in or relating to automotive vehicles having a relatively short wheel base
FR1435799A (en) * 1964-09-25 1966-04-22 Poclain Sa All terrain vehicle
NO132910C (en) * 1974-07-19 1976-01-28 Ingebret Soyland
NL7513887A (en) * 1975-11-27 1977-06-01 Continental Com & Prod LOCK CLEANER.
GB1554735A (en) * 1977-10-06 1979-10-31 600 Group Ltd Crane carriers
AT375703B (en) * 1979-12-24 1984-09-10 Kaiser Josef EXCAVATOR

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0017593A1 (en) * 1979-04-10 1980-10-15 Gilbert Bibaut Engine for cleaning ponds, marshes or canals

Also Published As

Publication number Publication date
DE3567925D1 (en) 1989-03-02
EP0177388A1 (en) 1986-04-09

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