EP0262050A1 - Digging device for earthmovingmachine used for digging trenches into the ground - Google Patents

Digging device for earthmovingmachine used for digging trenches into the ground Download PDF

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Publication number
EP0262050A1
EP0262050A1 EP87402137A EP87402137A EP0262050A1 EP 0262050 A1 EP0262050 A1 EP 0262050A1 EP 87402137 A EP87402137 A EP 87402137A EP 87402137 A EP87402137 A EP 87402137A EP 0262050 A1 EP0262050 A1 EP 0262050A1
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EP
European Patent Office
Prior art keywords
drums
motor
shaft
sleeve
axis
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
EP87402137A
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German (de)
French (fr)
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EP0262050B1 (en
Inventor
Karl Bollinger
Daniel Barre
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Soletanche SA
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Soletanche SA
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Publication date
Application filed by Soletanche SA filed Critical Soletanche SA
Priority to AT87402137T priority Critical patent/ATE61434T1/en
Publication of EP0262050A1 publication Critical patent/EP0262050A1/en
Application granted granted Critical
Publication of EP0262050B1 publication Critical patent/EP0262050B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to a machine intended for digging trenches in the ground by milling.
  • each drum consists of two half-drums supported on either side of a flat metallic core of small thickness which is arranged vertically, perpendicular to the axis of the drum.
  • the machine sinks due to its weight as the terrain disintegrates under the action of the tools placed on the drums, it is essential to work in rocky terrain, that the central core is as thin as possible, because the tools cannot disintegrate the ground located below the central core.
  • the drums are subjected during their work to very high forces and significant vibrations
  • the motors most often hydraulic, whose frame is subject to the central core and whose axis supports the half drums, are subjected to such constraints that they have a relatively short lifespan.
  • the present invention relates to a new device for mounting the motors on such vehicles which has the advantage of giving both greater rigidity to the central core and of preventing the motors from being themselves subjected to stresses and vibrations exerted on the drums.
  • the subject of the present invention is a machine of the aforementioned type, characterized in that the central core which supports the two half-drums is constituted by a vertical plate traversed by a hollow tubular sleeve with horizontal axis, coaxial with the drum, said sleeve receiving inside of it the motor for driving the half-drums, motor whose casing is locked in rotation relative to the sleeve, a flange being secured at each end of the sleeve to support the bearings of the corresponding half-drums which are driven from the motor axis.
  • the driving of the half-drums is ensured by a grooved shaft which engages both in grooves situated inside the axis of the rotor of the motor and in grooved orifices of two plates located on either side of the motor and integral in rotation each with a half-drum.
  • the splines of the shaft are engaged in the corresponding splines of the hollow axis of the motor and in the splines of the plates with sufficient clearance to ensure that the only force transmissible by the motor to the plates is constituted by the torque which drives the half-drums in rotation.
  • a train of The reduction gear can be arranged in place of the plates between the ends of the splined shaft and the half-drums.
  • a hollow splined shaft inside which there is a compensation chamber with variable volume (for example made of elastomer), which makes it possible to ensure pressure balancing on either side of the seals.
  • Figure 1 the lower part of the body 1 of the machine which is provided with two drums 2 arranged at the same level and rotating around two parallel axes in the direction of the arrows.
  • Each of the drums 2 is constituted by two half-drums arranged on either side of a core 3 secured to the lower part of the machine.
  • the drums 2 are provided with tools 4, the periphery of which is shown diagrammatically in FIG. 1 by circles in phantom.
  • the inlet orifice 5 of a suction pump (not shown) which rises to the ground surface the debris of ground detached by the tools 4 during the rotation of drums.
  • a pipe 6 which passes through the core 3 and which supplies the motor with the energy it needs, this energy which can advantageously be constituted by a hydraulic fluid but which can also be constituted for example by electric energy.
  • the core 3 is provided with a cylindrical sleeve 7 whose horizontal axis 8 is perpendicular to the plane of the core 3.
  • the inside diameter of the sleeve 7 corresponds substantially to the outside diameter of the motor 9 which is schematically shown in the drawing.
  • a flange 10 is secured by screws (schematically shown in phantom by their axes) on each of the ends of the sleeve 7. Screws 11 schematically shown make the motor 9 of the flanges 10 integral.
  • these screws 11 essentially have the function of immobilizing the motor 9 in rotation relative to the socket 7, the flanges 10 being firmly fixed on the latter by the screws of which it has been previously spoken.
  • the hollow axis 12 of the motor 9 has internally grooves 13 schematically shown which correspond to the grooves of the shaft 14 which drives the half-drums 2.
  • the half-drums 2 are mounted on the flanges 10 by bearings 15 (for example roller bearings), a grooved plate 16 which engages on grooves 17 formed at the ends of the shaft 14 ensuring the integral in rotation of the half-drums 2 with the shaft 14 and consequently with the axis 12 of the motor.
  • bearings 15 for example roller bearings
  • a grooved plate 16 which engages on grooves 17 formed at the ends of the shaft 14 ensuring the integral in rotation of the half-drums 2 with the shaft 14 and consequently with the axis 12 of the motor.
  • each plate 16 is connected to the crown 18 of the half-drum 2 also by grooves 19 which, thanks to their play, avoid any force other than the drive torque being transmitted between the half-drum 2, the shaft 14 and the motor 9.
  • seals 20 which prevent debris from the action of the tools 4 mounted on the drums 2 from infiltrating to the bearings 15.
  • the sleeve 7 which is arranged transversely on the core 3, has the effect of substantially stiffening the latter which is thus better able to withstand the large constraints of all kinds which are inherent in this type of machine.
  • the shaft 14 is a hollow shaft containing inside a chamber 21 of variable volume which makes it possible, in the manner known per se, to achieve pressure balancing on the part and on the other side of the seals 20 which are thus protected against deformations of their linings.
  • the device has the same structure, except that the half-drums 2 are rotated by a train of pinions 22 rotating on axes 23, integral with the flanges 10, these pinions 22 meshing, on the one hand on toothing 19 produced at each end of the shaft 14, and on the other hand on toothing 19 produced on a crown 18 secured to each half-drum 2.
  • FIG. 4 schematically shows a perspective view of the core 3 provided with its socket 7.
  • the axis of the sleeve 7 is horizontal and perpendicular to the core 3 which comprises at the upper part the plate 5 which allows it to be securely fixed to the lower part of the machine.

Abstract

The invention relates to a motor-driven milling machine construction for cutting trenches in the ground, in which there are two rotating semi-drums with cutting tools at their periphery. The drums are mounted on a central support. The sole function of the motor is to transmit a rotational torque to the semi-drums without transmitting any other forces. The stress exerted on the cutting tools is directly transmitted to the central support without going through the motor frame.

Description

La présente invention est relative à un engin destiné à creuser des tranchées dans le sol par fraisage.The present invention relates to a machine intended for digging trenches in the ground by milling.

On connaît déjà des engins de ce type qui comportent à leur partie inférieure deux tambours à axes parallèles horizontaux munis d'outils sur leur périphérie, qui sont entraînés en rotation en sens inverse et qui creusent des tranchées en désagrégeant progressivement dans le sol et en ramenant entre eux les matériaux ainsi produits qui sont ensuite aspirés par une pompe.There are already known machines of this type which have at their lower part two drums with horizontal parallel axes provided with tools on their periphery, which are rotated in opposite directions and which dig trenches gradually disintegrating in the ground and bringing back between them the materials thus produced which are then sucked up by a pump.

Selon un mode de réalisation connu, chaque tambour est constitué par deux demi-tambours supportés de part et d'autre d'une âme métallique plane de faible épaisseur qui est disposée verticalement, perpendiculairement à l'axe du tambour.According to a known embodiment, each drum consists of two half-drums supported on either side of a flat metallic core of small thickness which is arranged vertically, perpendicular to the axis of the drum.

Comme, lors de son travail, l'engin s'enfonce en raison de son poids au fur et à mesure de la désagrégation du terrain sous l'action des outils placés sur les tambours, il est indispensable pour travailler dans des terrains rocheux, que l'âme centrale soit d'une épaisseur aussi faible que possible, car les outils ne peuvent désagréger le terrain situé au dessous de l'âme centrale.As, during its work, the machine sinks due to its weight as the terrain disintegrates under the action of the tools placed on the drums, it is essential to work in rocky terrain, that the central core is as thin as possible, because the tools cannot disintegrate the ground located below the central core.

Comme par ailleurs, les tambours sont soumis lors de leur travail à des efforts très élevés et à des vibrations importantes, les moteurs, le plus souvent hydrauliques, dont le bâti est assujetti à l'âme centrale et dont l'axe supporte les demi-tambours, sont soumis à de telles contraintes qu'ils ont une durée de vie relativement courte.As in addition, the drums are subjected during their work to very high forces and significant vibrations, the motors, most often hydraulic, whose frame is subject to the central core and whose axis supports the half drums, are subjected to such constraints that they have a relatively short lifespan.

La présente invention est relative à un nouveau dispositif de montage des moteurs sur de tels engins qui présente l'avantage de conférer à la fois une plus grande rigidité à l'âme centrale et d'éviter que les moteurs ne soient eux-mêmes soumis aux contraintes et vibrations qui s'exercent sur les tambours.The present invention relates to a new device for mounting the motors on such vehicles which has the advantage of giving both greater rigidity to the central core and of preventing the motors from being themselves subjected to stresses and vibrations exerted on the drums.

De cette manière, grâce à l'invention, les efforts s'exerçant sur les outils sont directement transmis à l'âme centrale sans passer par le bâti du moteur dont le rôle est seulement de communiquer le couple qui entraîne le tambour.In this way, thanks to the invention, the forces exerted on the tools are directly transmitted to the central core without passing through the motor frame, the role of which is only to communicate the torque which drives the drum.

La présente invention a pour objet un engin du type précité, caractérisé par le fait que l'âme centrale qui supporte les deux demi-tambours est constituée par une plaque verticale traversée par une douille tubulaire creuse à axe horizontal, coaxiale avec le tambour, ladite douille recevant à son intérieur le moteur d'entraînement des demi-tambours, moteur dont le carter est verrouillé en rotation par rapport à la douille, un flasque étant assujetti à chacune des extrémités de la douille pour supporter les roulements des demi-tambours correspondants dont l'entraînement est assuré à partir de l'axe du moteur.The subject of the present invention is a machine of the aforementioned type, characterized in that the central core which supports the two half-drums is constituted by a vertical plate traversed by a hollow tubular sleeve with horizontal axis, coaxial with the drum, said sleeve receiving inside of it the motor for driving the half-drums, motor whose casing is locked in rotation relative to the sleeve, a flange being secured at each end of the sleeve to support the bearings of the corresponding half-drums which are driven from the motor axis.

Dans un mode de réalisation particulier, l'entraînement des demi-tambours est assuré par un arbre cannelé qui s'engage à la fois dans des cannelures situées à l'intérieur de l'axe du rotor du moteur et dans des orifices cannelés de deux plateaux situés de part et d'autre du moteur et solidaires en rotation chacun d'un demi-tambour.In a particular embodiment, the driving of the half-drums is ensured by a grooved shaft which engages both in grooves situated inside the axis of the rotor of the motor and in grooved orifices of two plates located on either side of the motor and integral in rotation each with a half-drum.

Dans une variante préférée de ce mode de réalisation de l'invention, les cannelures de l'arbre sont engagées dans les cannelures correspondantes de l'axe creux du moteur et dans les cannelures des plateaux avec un jeu suffisant pour faire en sorte que le seul effort transmissible par le moteur aux plateaux est constitué par le couple qui entraîne en rotation les demi-tambours.In a preferred variant of this embodiment of the invention, the splines of the shaft are engaged in the corresponding splines of the hollow axis of the motor and in the splines of the plates with sufficient clearance to ensure that the only force transmissible by the motor to the plates is constituted by the torque which drives the half-drums in rotation.

Dans une variante pouvant s'appliquer par exemple au cas où l'on désire entraîner le tambour à une vitesse inférieure à la vitesse de rotation du moteur (de manière à accroître la puissance du moteur en accroîssant sa vitesse de rotation), un train d'engrenage démultiplicateur peut être disposé à la place des plateaux entre les extrémités de l'arbre cannelé et les demi-tambours.In a variant which can be applied for example in the case where it is desired to drive the drum at a speed lower than the speed of rotation of the motor (so as to increase the power of the motor by increasing its speed of rotation), a train of The reduction gear can be arranged in place of the plates between the ends of the splined shaft and the half-drums.

Conformément à l'invention, il est également a vantageux d'utiliser un arbre cannelé creux à l'intérieur duquel on dispose une chambre de compensation à volume variable, (par exemple en élastomère), qui permet d'assurer l'équilibrage des pressions de part et d'autre des joints d'étanchéité.According to the invention, it is also advantageous to use a hollow splined shaft inside which there is a compensation chamber with variable volume (for example made of elastomer), which makes it possible to ensure pressure balancing on either side of the seals.

Dans le but de mieux faire comprendre l'invention on va en décrire maintenant à titre d'illustration et sans aucun caractère limitatif, deux modes de réalisation pris comme exemples et représentés sur le dessin annexé.

  • - La figure 1 est une vue schématique en élévation représentant la partie inférieure d'un engin du type de ceux auxquels s'applique l'invention.
  • - La figure 2 est une vue en coupe à plus grande échelle selon II-II de la figure 1.
  • - La figure 3 est une vue en coupe d'une variante du dispositif de la figure 2.
  • - La figure 4 est une vue en perspective de l'âme munie de sa douille conformément à l'invention.
In order to better understand the invention we will now describe by way of illustration and without any limitation, two embodiments taken as examples and shown in the accompanying drawing.
  • - Figure 1 is a schematic elevational view showing the lower part of a machine of the type of those to which the invention applies.
  • - Figure 2 is a sectional view on a larger scale according to II-II of Figure 1.
  • - Figure 3 is a sectional view of a variant of the device of Figure 2.
  • - Figure 4 is a perspective view of the core provided with its socket according to the invention.

On a représenté sur la figure 1 la partie inférieure du corps 1 de l'engin qui est muni de deux tambours 2 disposés au même niveau et tournant autour de deux axes parallèles dans le sens des flèches.There is shown in Figure 1 the lower part of the body 1 of the machine which is provided with two drums 2 arranged at the same level and rotating around two parallel axes in the direction of the arrows.

Chacun des tambours 2 est constitué par deux demi-tambours disposés de part et d'autre d'une âme 3 assujettie à la partie inférieure de l'engin.Each of the drums 2 is constituted by two half-drums arranged on either side of a core 3 secured to the lower part of the machine.

Les tambours 2 sont munis d'outils 4 dont la périphérie est délimitée schématiquement sur la figure 1 par des cercles en traits mixtes.The drums 2 are provided with tools 4, the periphery of which is shown diagrammatically in FIG. 1 by circles in phantom.

Entre les deux tambours 2 se trouve situé l'orifice d'admission 5 d'une pompe aspirante (non représentée) qui remonte à la surface du sol les débris de terrain détachés par les outils 4 lors de la rotation de tambours.Between the two drums 2 is located the inlet orifice 5 of a suction pump (not shown) which rises to the ground surface the debris of ground detached by the tools 4 during the rotation of drums.

On retrouve sur la figure 2 l'âme 3 qui est solidaire d'un plateau transversal 5 qui lui permet d'être solidement fixé à la partie inférieure du corps 1 de l'engin.Found in Figure 2 the core 3 which is integral with a transverse plate 5 which allows it to be securely attached to the lower part of the body 1 of the machine.

On a schématiquement représenté sur le dessin une canalisation 6 qui traverse l'âme 3 et qui amène au moteur l'énergie qui lui est nécessaire, cette énergie pouvant être avantageusement constituée par un fluide hydraulique mais pouvant être également constituée par exemple par de l'énergie électrique.There is schematically shown in the drawing a pipe 6 which passes through the core 3 and which supplies the motor with the energy it needs, this energy which can advantageously be constituted by a hydraulic fluid but which can also be constituted for example by electric energy.

Conformément à l'invention, l'âme 3 est munie d'une douille cylindrique 7 dont l'axe horizontal 8 est perpendiculaire au plan de l'âme 3.According to the invention, the core 3 is provided with a cylindrical sleeve 7 whose horizontal axis 8 is perpendicular to the plane of the core 3.

Le diamètre intérieur de la douille 7 correspond sensiblement au diamètre extérieur du moteur 9 qui est schématiquement représenté sur le dessin.The inside diameter of the sleeve 7 corresponds substantially to the outside diameter of the motor 9 which is schematically shown in the drawing.

Un flasque 10 est assujetti par des vis (schématiquement représentées en traits mixtes par leurs axes) sur chacune des extrémités de la douille 7. Des vis 11 schématiquement représentées rendent solidaires le moteur 9 des flasques 10.A flange 10 is secured by screws (schematically shown in phantom by their axes) on each of the ends of the sleeve 7. Screws 11 schematically shown make the motor 9 of the flanges 10 integral.

Conformément à l'invention, ces vis 11 ont essentiellement pour fonction d'immobiliser le moteur 9 en rotation par rapport à la douille 7, les flasques 10 étant solidement fixés sur cette dernière par les vis dont il a été précédemment parlé.In accordance with the invention, these screws 11 essentially have the function of immobilizing the motor 9 in rotation relative to the socket 7, the flanges 10 being firmly fixed on the latter by the screws of which it has been previously spoken.

L'axe creux 12 du moteur 9 comporte à son intérieur des cannelures 13 schématiquement représentées qui correspondent aux cannelures de l'arbre 14 qui assure l'entraînement des demi-tambours 2.The hollow axis 12 of the motor 9 has internally grooves 13 schematically shown which correspond to the grooves of the shaft 14 which drives the half-drums 2.

Pour cela, les demi-tambours 2 sont montés sur les flasques 10 par des paliers 15, (par exemple des roulements à galets), un plateau cannelé 16 qui s'engage sur des cannelures 17 pratiquées aux extrémités de l'arbre 14 assurant la solidarisation en rotation des demi-tambours 2 avec l'arbre 14 et par conséquent avec l'axe 12 du moteur.For this, the half-drums 2 are mounted on the flanges 10 by bearings 15 (for example roller bearings), a grooved plate 16 which engages on grooves 17 formed at the ends of the shaft 14 ensuring the integral in rotation of the half-drums 2 with the shaft 14 and consequently with the axis 12 of the motor.

Dans le mode de réalisation de la figure 2, chaque plateau 16 est relié à la couronne 18 du demi-tambour 2 également par des cannelures 19 qui, grâce à leur jeu, évitent que tout effort autre que le couple d'entraînement soit transmis entre le demi-tambour 2, l'arbre 14 et le moteur 9.In the embodiment of Figure 2, each plate 16 is connected to the crown 18 of the half-drum 2 also by grooves 19 which, thanks to their play, avoid any force other than the drive torque being transmitted between the half-drum 2, the shaft 14 and the motor 9.

On a enfin schématiquement représenté sur le dessin les joints d'étanchéité 20 qui interdisent aux débris provenant de l'action des outils 4 montés sur les tambours 2 de s'infiltrer jusqu'aux paliers 15.Finally, diagrammatically shown in the drawing are the seals 20 which prevent debris from the action of the tools 4 mounted on the drums 2 from infiltrating to the bearings 15.

On comprend dans ces conditions que le mouvement de rotation transmis à partir du moteur 9 aux demi-tambours 2 par l'intermédiaire de l'arbre 14 (qui, grâce aux cannelures 13 et 17, est monté flottant, aussi bien par rapport au moteur 9 que par rapport aux demi-tambours 2), évite que tout effort autre que le couple d'entraînement des demi-tambours puisse se répercuter sur le moteur qui est par ailleurs tenu à l'abri de toutes les vibrations résultant du travail des outils .It is understood under these conditions that the rotational movement transmitted from the motor 9 to the half-drums 2 via the shaft 14 (which, thanks to the grooves 13 and 17, is mounted floating, as well relative to the motor 9 than with respect to the half-drums 2), prevents any force other than the driving torque of the half-drums from being able to affect the motor which is also kept safe from all vibrations resulting from the work of the tools .

En d'autres termes, on obtient, conformément à l'invention, une dissociation complète entre la fonction du moteur qui communique uniquement un couple de rotation aux demi-tambours et la fonction de l'âme qui reprend directement tous les autres efforts et supporte toutes les vibrations des tambours grâce au fait que les demi-tambours 2 sont directement montés par l'intermédiaire des paliers 15 sur les flasques 10 qui sont eux-mêmes solidement assujettis aux extrémités de la douille 7.In other words, in accordance with the invention, a complete dissociation is obtained between the function of the motor which communicates only a torque to the half-drums and the function of the core which directly takes up all the other forces and supports all the vibrations of the drums thanks to the fact that the half-drums 2 are directly mounted by means of the bearings 15 on the flanges 10 which are themselves securely fastened to the ends of the sleeve 7.

Par ailleurs, la douille 7 qui est disposée transversalement sur l'âme 3, a pour effet de raidir sensiblement cette dernière qui se trouve ainsi mieux en mesure de résister aux importantes contraintes de toutes natures qui sont inhérentes à ce type d'engin.Furthermore, the sleeve 7 which is arranged transversely on the core 3, has the effect of substantially stiffening the latter which is thus better able to withstand the large constraints of all kinds which are inherent in this type of machine.

Selon le mode de réalisation préféré qui est représenté sur la figure 2, l'arbre 14 est un arbre creux contenant à son intérieur une chambre 21 de volume variable qui permet, à la manière connue en soi, de réaliser un équilibrage des pressions de part et d'autre des joints 20 qui se trouvent ainsi protégés vis-à-vis des déformations de leurs garnitures.According to the preferred embodiment which is shown in FIG. 2, the shaft 14 is a hollow shaft containing inside a chamber 21 of variable volume which makes it possible, in the manner known per se, to achieve pressure balancing on the part and on the other side of the seals 20 which are thus protected against deformations of their linings.

Dans le mode de réalisation représenté sur la figure 3, le dispositif présente la même structure, si ce n'est que les demi-tambours 2 sont entraînés en rotation par un train de pignons 22 tournant sur des axes 23, solidaires des flasques 10, ces pignons 22 engrenant, d'une part sur des dentures 19 réalisées à chaque extrémité de l'arbre 14, et d'autre part sur une denture 19 réalisée sur une couronne 18 solidaire de chaque demi-tambour 2.In the embodiment shown in FIG. 3, the device has the same structure, except that the half-drums 2 are rotated by a train of pinions 22 rotating on axes 23, integral with the flanges 10, these pinions 22 meshing, on the one hand on toothing 19 produced at each end of the shaft 14, and on the other hand on toothing 19 produced on a crown 18 secured to each half-drum 2.

En choisissant les diamètres respectifs de l'arbre 14 et des pignons 22, il est possible de faire tourner les demi-tambours à une vitesse différente et en particulier à une vitesse inférieure à celle du moteur 9.By choosing the respective diameters of the shaft 14 and of the pinions 22, it is possible to rotate the half-drums at a different speed and in particular at a speed lower than that of the motor 9.

On a schématiquement représenté sur la figure 4 une vue en perspective de l'âme 3 munie de sa douille 7.FIG. 4 schematically shows a perspective view of the core 3 provided with its socket 7.

On voit sur cette figure que l'axe de la douille 7 est horizontal et perpendiculaire à l'âme 3 qui comporte à la partie supérieure le plateau 5 qui lui permet d'être solidement fixé à la partie inférieure de l'engin.We see in this figure that the axis of the sleeve 7 is horizontal and perpendicular to the core 3 which comprises at the upper part the plate 5 which allows it to be securely fixed to the lower part of the machine.

Il est bien entendu que les modes de réalisation qui viennent d'être décrits ci-dessus ne présentent aucun caractère limitatif et qu'ils pourront recevoir toutes modifications désirables sans sortir pour cela du cadre de l'invention.It is understood that the embodiments which have just been described above have no limiting character and that they can receive any desirable modifications without departing from the scope of the invention.

En particulier, il est clair que dans la mesure où l'axe creux du moteur est désolidarisé des demi-tambours en ce qui concerne tous les efforts autres que le couple qui entraîne les demi-tambours en rotation, il est possible de réaliser par des moyens mécaniques autres que ceux qui ont été décrits l'accouplement entre l'arbre qui passe à l'intérieur de l'axe creux du moteur et les demi-tambours qui sont supportés par l'intermédiaire de paliers fixés sur les flasques assujettis aux extrémités de la douille. In particular, it is clear that since the hollow axis of the motor is separated from the half-drums with regard to all the forces other than the torque which drives the half-drums in rotation, it is possible to achieve by mechanical means other than those which have been described the coupling between the shaft which passes inside the hollow axis of the motor and the half-drums which are supported by means of bearings fixed on the flanges subject to the ends from the socket.

Claims (5)

1. Dispositif moteur pour engin destiné à creuser des tranchées dans le sol par fraisage, du type comportant au moins deux demi-tambours tournants munis d'outils à leur périphérie et supportés par une âme centrale, caractérisé par le fait que l'âme centrale (3) est constituée par une plaque verticale traversée par une douille tubulaire (7) creuse, à axe horizontal, coaxiale avec les demi-tambours (2), tournant à l'extérieur de ladite douille qui reçoit à son intérieur un moteur d'entraînement (2) des demi-tambours, moteur dont le carter est verrouillé en rotation par rapport à la douille (7), un flasque (10) étant assujetti à chacune des extrémités de la douille (7) pour supporter les paliers (15) des demi-tambours correspondants, l'entraînement des demi-tambours (2) étant assuré à partir de l'axe (12) du moteur (9).1. Motor device for machine intended for digging trenches in the ground by milling, of the type comprising at least two rotating half-drums provided with tools at their periphery and supported by a central core, characterized in that the central core (3) is constituted by a vertical plate traversed by a hollow tubular sleeve (7), with a horizontal axis, coaxial with the half-drums (2), rotating outside said sleeve which receives inside its a motor drive (2) of the half-drums, motor whose casing is locked in rotation relative to the sleeve (7), a flange (10) being secured to each end of the sleeve (7) to support the bearings (15) corresponding half-drums, the half-drums (2) being driven from the axis (12) of the motor (9). 2. Dispositif selon la revendication 1, caractérisé par le fait que l'entraînement des demi-tambours est assuré par un arbre cannelé (14) qui s'engage par ses cannelures (13) à la fois à l'intérieur de l'axe creux (12) du rotor du moteur (9) et dans les orifices cannelés (19) de deux plateaux (16) situés de part d'autre du moteur (9), lesquels sont solidaires en rotation chacun avec un demi-tambour.2. Device according to claim 1, characterized in that the driving of the half-drums is ensured by a splined shaft (14) which engages by its splines (13) both inside the axis hollow (12) of the motor rotor (9) and in the grooved orifices (19) of two plates (16) located on either side of the motor (9), which are integral in rotation each with a half-drum. 3. Dispositif selon la revendication 2, caractérisé par le fait que les cannelures (13) de l'arbre (14) sont engagées dans des cannelures correspondantes de l'axe creux (12) du moteur (9) et dans des cannelures des plateaux (16) avec un jeu suffisant pour faire en sorte que le seul effort qui soit transmis par le moteur aux plateaux (16) soit constitué par le couple qui entraîne en rotation les demi-tambours (2).3. Device according to claim 2, characterized in that the grooves (13) of the shaft (14) are engaged in corresponding grooves of the hollow axis (12) of the motor (9) and in grooves of the plates (16) with sufficient play to ensure that the only force which is transmitted by the motor to the plates (16) is constituted by the torque which drives the half-drums (2) in rotation. 4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'il comporte un train d'engrenages à axes fixes qui sont en prise, d'une part avec les extrémités de l'arbre (14), et d'autre part avec une couronne dentée (18) solidaire des demi-tambours (2).4. Device according to any one of the preceding claims, characterized in that it comprises a gear train with fixed axes which are engaged, on the one hand with the ends of the shaft (14), and d 'other hand with a ring gear (18) integral with the half-drums (2). 5. Dispositif selon l'une quelconque des revendications précédentes, caractérisé par le fait qu'un organe de compensation à volume variable (21) est disposé à l'intérieur de l'arbre (17) pour assurer l'équilibrage des pressions de part et d'autre des joints d'étanchéité (20).5. Device according to any one of the preceding claims, characterized in that a variable-volume compensation member (21) is arranged inside the shaft (17) to ensure pressure balancing on the part and on the other side the seals (20).
EP87402137A 1986-09-26 1987-09-24 Digging device for earthmovingmachine used for digging trenches into the ground Expired - Lifetime EP0262050B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87402137T ATE61434T1 (en) 1986-09-26 1987-09-24 MILLING DEVICE FOR EARTHMOVING MACHINE FOR DIGING TRENCHES IN THE GROUND.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8613468A FR2604460B1 (en) 1986-09-26 1986-09-26 DEVICE FOR A MACHINE FOR EXCAVATING TRENCHES IN THE SOIL BY MILLING
FR8613468 1986-09-26

Publications (2)

Publication Number Publication Date
EP0262050A1 true EP0262050A1 (en) 1988-03-30
EP0262050B1 EP0262050B1 (en) 1991-03-06

Family

ID=9339304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87402137A Expired - Lifetime EP0262050B1 (en) 1986-09-26 1987-09-24 Digging device for earthmovingmachine used for digging trenches into the ground

Country Status (9)

Country Link
US (1) US4883134A (en)
EP (1) EP0262050B1 (en)
JP (1) JPH0663254B2 (en)
AT (1) ATE61434T1 (en)
CA (1) CA1290771C (en)
DE (2) DE262050T1 (en)
ES (1) ES2001738B3 (en)
FR (1) FR2604460B1 (en)
SU (1) SU1616522A3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378485A1 (en) * 1989-01-13 1990-07-18 Soletanche Device for connecting cutting drums to an apparatus used for digging trenches in the soil
EP0553378B1 (en) * 1992-01-30 1996-01-03 Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann Device for making a slot in the soil during the construction of a sealing or protecting wall
FR2899608A1 (en) * 2006-04-06 2007-10-12 Cie Du Sol Soc Civ Ile DRILLING TOOLS
EP1882782A1 (en) * 2006-07-28 2008-01-30 Compagnie du Sol Cutting head for a digging machine
EP1975323A1 (en) 2007-03-28 2008-10-01 Compagnie du Sol Cutting head for a soil-cutting machine with rotary cutters
WO2010116081A1 (en) * 2009-04-10 2010-10-14 Soletanche Freyssinet Soil excavation machine of the mill type provided with a movable carriage
WO2019058078A1 (en) * 2017-09-25 2019-03-28 Soletanche Freyssinet Drilling machine for forming a non-rectilinear trench

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US5056242A (en) * 1989-05-12 1991-10-15 Finic, B.V. Underground wall construction method and apparatus
AUPP764598A0 (en) 1998-12-11 1999-01-14 R N Cribb Pty Limited Rotary drum cutting head
EP1291490A3 (en) * 2001-09-06 2003-05-21 Bechem, Hannelore Excavating tool for rock, minerals etc
ITBO20010632A1 (en) * 2001-10-16 2003-04-16 Simex Engineering S R L HYDRAULIC MILLING MACHINE FOR EXCAVATOR MACHINES
US6865827B2 (en) * 2002-03-15 2005-03-15 Unverferth Manufacturing Co., Inc. Utility device having an improved rotatable drive mechanism
FR2862336B1 (en) * 2003-11-18 2006-03-17 Cie Du Sol DRILLING MACHINE WITH ROTARY TOOLS
DE502004007221D1 (en) * 2004-03-26 2008-07-03 Bauer Maschinen Gmbh Trench cutter
DE502004005279D1 (en) * 2004-08-23 2007-11-29 Bauer Maschinen Gmbh Apparatus and method for creating a diaphragm wall in the ground
FR2904338B1 (en) * 2006-07-28 2011-03-04 Cie Du Sol CUTTING HEAD FOR EXCAVATION MACHINE
CN103334692B (en) * 2013-07-21 2015-10-14 郑一丹 Double-gear hole forming machine
IT201700112156A1 (en) 2017-10-06 2019-04-06 Soilmec Spa EXCAVATION TOOL FOR DIAPHRAGM AND RELATIVE EXCAVATION EQUIPMENT

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FR504446A (en) * 1918-10-05 1920-07-05 Birney Welchel Jackson Earth plowing machine
US1483257A (en) * 1922-08-21 1924-02-12 Balluseck Eugen Ludwig Von Ditching machine
FR1545629A (en) * 1967-06-29 1968-11-15 Cie Francaise De Geomecanique Device for making trenches in all geological formations
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FR2483488A1 (en) * 1980-06-02 1981-12-04 Tim Tech Ind Minieres Underwater excavating and cable laying vehicle - uses cable guide rollers with speed servo control and trench backfill
FR2578876A1 (en) * 1985-03-15 1986-09-19 Tone Boring Co TRANCHEE EXCAVATOR

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US4270927A (en) * 1979-06-19 1981-06-02 Atlantic Richfield Company Process for removal of sulfur and ash from coal
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Publication number Priority date Publication date Assignee Title
FR504446A (en) * 1918-10-05 1920-07-05 Birney Welchel Jackson Earth plowing machine
US1483257A (en) * 1922-08-21 1924-02-12 Balluseck Eugen Ludwig Von Ditching machine
FR1545629A (en) * 1967-06-29 1968-11-15 Cie Francaise De Geomecanique Device for making trenches in all geological formations
FR2211027A5 (en) * 1972-12-14 1974-07-12 Soletanche
US3894587A (en) * 1972-12-14 1975-07-15 Hydrosol Device for drilling in hard rock formation
US4179829A (en) * 1977-12-12 1979-12-25 Kinkade Franklin C Trenching machine
FR2483488A1 (en) * 1980-06-02 1981-12-04 Tim Tech Ind Minieres Underwater excavating and cable laying vehicle - uses cable guide rollers with speed servo control and trench backfill
FR2578876A1 (en) * 1985-03-15 1986-09-19 Tone Boring Co TRANCHEE EXCAVATOR

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378485A1 (en) * 1989-01-13 1990-07-18 Soletanche Device for connecting cutting drums to an apparatus used for digging trenches in the soil
FR2641807A1 (en) * 1989-01-13 1990-07-20 Soletanche DEVICE FOR FIXING MILLING DRUMS ON AN APPARATUS FOR HOLLOWING TRENCHES IN THE GROUND
US4991322A (en) * 1989-01-13 1991-02-12 Soletanche Device for affixing cutter drums to an apparatus intended for cutting trenches in the ground
EP0553378B1 (en) * 1992-01-30 1996-01-03 Hochtief Aktiengesellschaft Vorm. Gebr. Helfmann Device for making a slot in the soil during the construction of a sealing or protecting wall
US8020323B2 (en) 2006-04-06 2011-09-20 Compagnie Du Sol Drilling tool
WO2007116178A1 (en) * 2006-04-06 2007-10-18 Compagnie Du Sol Drilling tool
FR2899608A1 (en) * 2006-04-06 2007-10-12 Cie Du Sol Soc Civ Ile DRILLING TOOLS
EP1882782A1 (en) * 2006-07-28 2008-01-30 Compagnie du Sol Cutting head for a digging machine
FR2904339A1 (en) * 2006-07-28 2008-02-01 Cie Du Sol Soc Civ Ile CUTTING HEAD FOR AN EXCAVATION MACHINE
US7591514B2 (en) 2006-07-28 2009-09-22 Compagnie Du Sol Cutter head for an excavator machine
EP1975323A1 (en) 2007-03-28 2008-10-01 Compagnie du Sol Cutting head for a soil-cutting machine with rotary cutters
FR2914331A1 (en) * 2007-03-28 2008-10-03 Cie Du Sol Soc Civ Ile CUTTING HEAD FOR ROTATING STRAW GROUT CUTTING MACHINE
US8128178B2 (en) 2007-03-28 2012-03-06 Compagnie Du Sol Cutter head for a ground cutter machine having rotary cutters
WO2010116081A1 (en) * 2009-04-10 2010-10-14 Soletanche Freyssinet Soil excavation machine of the mill type provided with a movable carriage
EP2417304B1 (en) 2009-04-10 2018-06-06 Soletanche Freyssinet Soil excavation machine of the mill type provided with a movable carriage
WO2019058078A1 (en) * 2017-09-25 2019-03-28 Soletanche Freyssinet Drilling machine for forming a non-rectilinear trench
FR3071535A1 (en) * 2017-09-25 2019-03-29 Soletanche Freyssinet DRILLING MACHINE FOR CARRYING OUT A NON-RECTILINE TRENCH

Also Published As

Publication number Publication date
CA1290771C (en) 1991-10-15
ES2001738A4 (en) 1988-06-16
SU1616522A3 (en) 1990-12-23
FR2604460B1 (en) 1991-05-10
US4883134A (en) 1989-11-28
ATE61434T1 (en) 1991-03-15
DE262050T1 (en) 1988-09-01
JPS63165620A (en) 1988-07-08
DE3768400D1 (en) 1991-04-11
ES2001738B3 (en) 1991-08-16
JPH0663254B2 (en) 1994-08-22
FR2604460A1 (en) 1988-04-01
EP0262050B1 (en) 1991-03-06

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