EP1060856A1 - Rotor for soil stabilising apparatus and soil stabilising apparatus with such a rotor - Google Patents

Rotor for soil stabilising apparatus and soil stabilising apparatus with such a rotor Download PDF

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Publication number
EP1060856A1
EP1060856A1 EP00401704A EP00401704A EP1060856A1 EP 1060856 A1 EP1060856 A1 EP 1060856A1 EP 00401704 A EP00401704 A EP 00401704A EP 00401704 A EP00401704 A EP 00401704A EP 1060856 A1 EP1060856 A1 EP 1060856A1
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EP
European Patent Office
Prior art keywords
rotor
segments
tools
axis
soil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
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EP00401704A
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German (de)
French (fr)
Inventor
Umberto Draghi
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Hamm AG
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Individual
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Publication date
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Publication of EP1060856A1 publication Critical patent/EP1060856A1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
    • B28D1/186—Tools therefor, e.g. having exchangeable cutter bits

Definitions

  • the invention relates to a rotor of a machine intended for cut a ground and more particularly a rotor of a machine used for soil stabilization and recycling, as well as machine comprising such a rotor.
  • Such machines are hereinafter referred to summarily as “stabilizer of ground ".
  • the stabilization of a soil aims to transform, thanks to additives, imperfect soil into a resistant infrastructure.
  • the upper layer of the soil to be stabilized is removed up to a predetermined depth, the materials composing it are introduced into a mixer into which are also introduced additives and, after mixing, redeposited on the original surface.
  • the additives are scattered or spread over the surface of the soil to be stabilized or to recycle.
  • the object of the invention is to propose a rotor of a soil stabilizer which allows improved mixing of the worked layer of a soil, whatever the nature of the soil to work and the fluidity of the material to be kneaded and its consistency, the improvement of the mixing should preferably consist of a a more uniform way of mixing both on the surface and depth.
  • the rotor must be able to be mounted in place of a rotor existing without modification of the machine comprising it.
  • a rotor of soil stabilizer comprising a cylindrical body having an axis and an outer surface, the body being provided on its surface of a plurality of tools for working the soil.
  • the tools are arranged on curve segments of which at least two segments form opposite angles with a plane perpendicular to the axis of the rotor.
  • the arrangement of the tools on the surface of the rotor body, especially when it is represented on the developed surface of the rotor body, is such that the tools are arranged in a pattern geometric composed by a plurality of curve segments, attached to each other or not. All the tools arranged on a curve segment constitutes a series of tools.
  • a "curve segment” any line, straight line or curve, having an average orientation and allowing to define a mean angle between this curve segment and a plane perpendicular to the axis of the rotor.
  • the longest sides of the developed surface of the rotor can serve indifferently, in the case of the present invention, for define the average orientation of the curve segments on which the tools are arranged forming a series of tools. If we consider the orientation of the curve segments with respect to any one planes perpendicular to the rotor axis, these segments of curve form, two by two, opposite angles with this plane.
  • the object of the invention is also achieved by a machine comprising a rotor such as that described above.
  • the rotor of the invention is distinguished from rotors previously used primarily by the disposal of tools, a replacement of an anterior rotor by a the invention does not necessarily result in a modification of the machine.
  • Figure 1 shows a rotor of a stabilizer according to the invention in a perspective view.
  • Figure 2 shows a tool holder with a tool intended to equip the rotor.
  • Figure 3 shows the rotor of Figure 1 in an axial view.
  • Figure 4 schematically represents the offset angular between two successive discs of the rotor of the invention.
  • Figure 5 shows the developed surface of the rotor and a arrangement of tools.
  • Figure 6 shows the rotor of Figure 1 in a side view relative to the axis of the rotor.
  • a rotor of a soil stabilizer comprises, according to a mode preferred embodiment of the invention, a cylindrical body 1 having an axis A and an outer surface 2.
  • the body 1 is cylindrical with revolution and can be made in one piece or made of several cylindrical elements successively attached to each other to the others and having the same axis A.
  • the body 1 of the rotor is provided of a plurality of discs 3 arranged on the axis A of the rotor and at a axial distance from each other.
  • Each of the discs 3 is made up of two, three or four tool supports 31 each of which carries, at its periphery 32, a tool 4 intended for working the soil.
  • the number tool holders per disc depends on the structure or geometric pattern chosen according to which, or according to which, the tools must be arranged.
  • each of the discs is consisting of a whole annular element, whatever the shape from its periphery or by two or more tool holders forming a ring assembly.
  • the discs arranged on the axis A of the rotor are oriented angularly so that there is an angular offset ⁇ between the corresponding tools 4 and 4 'from neighboring discs.
  • the curve segment has, on the developed surface of the rotor, the shape of a straight line. If, by against, these angles vary, we get an arched line or all other curved shape.
  • a layout of tools 4 on segments of straight curves 5 and 6 corresponding to an embodiment preferred of the invention, is shown in Figure 5.
  • the developed surface of the rotor shown in Figure 5 shows a preferred arrangement of the tools 4 on the surface 2 of the body 1 of the rotor.
  • the tools 4 are arranged mainly in groups of six or seven tools with mainly two orientations which are distinguished from each other by the angle that the segments define with a plane P perpendicular to the axis A rotor.
  • This plane P can be a median plane P o situated in the middle between the two ends of the body 1 or any other plane P 1 chosen arbitrarily over the axial length of the body 1 and materialized by any one of the discs 3.
  • the plane P o we then relate to the plane P o .
  • the curve segments 5 include segments 51 whose length corresponds to a location of six successive tools 4 and segments 52 whose length corresponds to the location of seven successive tools 4.
  • the curve segments 51 and 52 are oriented so as to form with the plane P 0 an angle ⁇ 1 or an angle ⁇ 2 .
  • the angles ⁇ 1 and ⁇ 2 can be, but are not necessarily, of the same magnitude.
  • the curve segments 6 comprise segments 61 whose length corresponds to the location of six tools 4 and segments 62 whose length corresponds to the location of seven tools 4.
  • the segments 61 and 62 are oriented so as to form with the plane P o respectively an angle ⁇ 1 or an angle ⁇ 2 .
  • the angles ⁇ 1 and ⁇ 2 can be, but are not necessarily, of the same magnitude.
  • Figure 5 also shows curve segments 63 and 64 which follow on the surface 2 of the body 1 and which correspond so, with regard to the total length of these two segments, to segment 61 whose total length corresponds to the location a suite of six tools 4.
  • the orientations of the curve segments and, consequently, the measurements of the angles ⁇ 1 , ⁇ 2 , ⁇ 1 and ⁇ 2 are distinguished from one another as follows.
  • the orientation of the segments 51, expressed by the angle ⁇ 1 is measured relative to the plane P 0 by looking, in FIG. 5, against the direction of rotation R.
  • the orientation of the segments 52, characterized by the angle ⁇ 2 is measured relative to the plane P 0 by looking, in Figure 5, in the direction of rotation R.
  • Each of the angles ⁇ 1 and ⁇ 2 is measured from the plane P 0 in the direction of the hands of a watch. The two angles open on different sides of the plane P 0 .
  • the orientation of the segment 61 and of the segments 63 and 64 expressed by the angle ⁇ 1 is measured relative to and from the plane P 0 by looking against the direction of rotation R.
  • the orientation segments 62, expressed by the angle ⁇ 2 is measured with respect to the plane P 0 by looking in the direction of rotation R.
  • Each of the angles ⁇ 1 and ⁇ 2 is measured from the plane P 0 in the opposite direction of Clockwise. The two angles open on different sides of the plane P 0 .
  • the curve segments arranged to the left of the plane P 0 referenced in order in the direction of rotation R by 63, 52, 61, 52 and 64, constitute a sequence of segments 7.
  • the curve segments arranged on the right side with respect to the plane P 0 referenced in order in the direction of rotation R by 62, 51, 62 and 51, form a sequence of segments 8.
  • the sequences of segments 7 and 8 occupy sections of the same axial length on the body of the rotor. In other words, each of the series of segments 7 and 8 defines the positions on which the tools 4 are disposed respectively in one or the other half of the two adjacent halves, in the axial direction of the rotor, of the body 1.
  • Each of the structures 7 and 8 constitute a structure in W.
  • the curve segments 7 and 8 do not follow each other directly, that is to say are not attached to each other, but constitute a kind of interrupted sequence.
  • the interruption is done either by an axial offset of a tool towards an isolated position, as is the case of the tools referenced 41 and 42.
  • Another possibility of interruption of the series of segments is constituted by an offset from the start of the next curve segment represented by tools 43 and 44, relative to the location of the last tool of the previous segment, represented by tools 45 and 46, so that tools 45 and 46 are not in line with the segments of curve to which the tools 43 and 44 belong.
  • Each of the series of segments 7 and 8 is formed so that two successive segments of this series form opposite angles with the plane P 0 .
  • this arrangement is represented by the opposite angles ⁇ 2 and ⁇ 1 for the series of segments 7 and by the angles ⁇ 1 and ⁇ 2 for the series of segments 8.
  • segments of the curve correspondents of these two sequences of adjacent segments are angularly offset from each other as has been already mentioned with reference to Figures 1 and 3.
  • the segments of curve corresponding to the embodiment shown in the Figure 5 are, in the direction of rotation R, the curve segments 52 and 62, segments 61 and 51, segments 52 and 62 and the segments 63, 64 and 51.
  • the tools are arranged on two sequences of segment 7 and 8 respectively arranged on one or the other of two axially adjacent halves 11 and 12 of the body 1.
  • This layout is shown schematically in Figure 6 in a side view with respect to the axis A of the rotor.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The ground stabilization machine rotor comprises a cylindrical body (1) with an axis (A) and an external surface (2). Several tools (4) for working the ground are fitted on the external surface of the body. The tools are arranged in pairs on curved segments forming opposite angles with a plane perpendicular to the axis.

Description

L'invention concerne un rotor d'une machine destinée à couper un sol et plus particulièrement un rotor d'une machine utilisée pour la stabilisation et le recyclage de sols, ainsi qu'une machine comprenant un tel rotor. De telles machines sont désignées par la suite sommairement comme « stabilisatrice de sol ».The invention relates to a rotor of a machine intended for cut a ground and more particularly a rotor of a machine used for soil stabilization and recycling, as well as machine comprising such a rotor. Such machines are hereinafter referred to summarily as "stabilizer of ground ".

La stabilisation d'un sol a pour objectif de transformer, grâce à des additifs, un sol imparfait en une infrastructure résistante. Pour cela, la couche supérieure du sol à stabiliser est enlevée jusqu'à une profondeur préétablie, les matériaux la composant sont introduits dans un malaxeur dans lequel sont également introduits les additifs et, après malaxage, redéposés sur la surface d'origine.The stabilization of a soil aims to transform, thanks to additives, imperfect soil into a resistant infrastructure. For this, the upper layer of the soil to be stabilized is removed up to a predetermined depth, the materials composing it are introduced into a mixer into which are also introduced additives and, after mixing, redeposited on the original surface.

Selon la technique actuellement pratiquée pour la stabilisation de sols, on utilise des machines réunissant en une seule machine toutes les fonctions énoncées ci-avant, à savoir couper la couche supérieure du sol jusqu'à une profondeur préétablie, enlever les matériaux coupés pour les introduire dans un malaxeur, introduire les additifs dans le malaxeur, malaxer le mélange et redéposer le mélange résultant sur la surface initiale.According to the technique currently practiced for soil stabilization, we use machines that combine single machine all the functions set out above, namely cut the top layer of soil to a depth preset, remove the cut materials to introduce them into a mixer, introduce the additives into the mixer, mix the mixture and redeposit the resulting mixture on the initial surface.

Selon une variante de cette technique, les additifs sont dispersés ou répandus sur la surface du sol à stabiliser ou à recycler.According to a variant of this technique, the additives are scattered or spread over the surface of the soil to be stabilized or to recycle.

Quelle que soit la technique utilisée, toutes les machines utilisées jusqu'à maintenant effectuent un malaxage longitudinal, c'est-à-dire un malaxage dans le sens de la marche de la machine. Ceci nécessite de disperser et épandre très également, très uniformément et avec beaucoup de précision, les produits ou les additifs à malaxer.Whatever technique is used, all machines used until now carry out a longitudinal mixing, that is to say mixing in the direction of travel of the machine. This requires dispersing and spreading very equally, very uniformly and very precisely, the products or additives to mix.

Le but de l'invention est de proposer un rotor d'une stabilisatrice de sol qui permette d'obtenir un malaxage amélioré de la couche travaillée d'un sol, quelles que soient la nature du sol à travailler et la fluidité du matériel à malaxer et sa consistance, l'amélioration du malaxage devant consister de préférence en une manière plus uniforme du malaxage tant en surface qu'en profondeur. De plus, le rotor doit pouvoir être monté à la place d'un rotor existant sans modification de la machine le comprenant.The object of the invention is to propose a rotor of a soil stabilizer which allows improved mixing of the worked layer of a soil, whatever the nature of the soil to work and the fluidity of the material to be kneaded and its consistency, the improvement of the mixing should preferably consist of a a more uniform way of mixing both on the surface and depth. In addition, the rotor must be able to be mounted in place of a rotor existing without modification of the machine comprising it.

Le but de l'invention est atteint par un rotor d'une stabilisatrice de sol comportant un corps cylindrique ayant un axe et une surface extérieure, le corps étant pourvu sur sa surface d'une pluralité d'outils destinés à travailler le sol.The object of the invention is achieved by a rotor of soil stabilizer comprising a cylindrical body having an axis and an outer surface, the body being provided on its surface of a plurality of tools for working the soil.

Conformément à l'invention, les outils sont disposés sur des segments de courbe dont au moins deux segments forment des angles opposés avec un plan perpendiculaire à l'axe du rotor.According to the invention, the tools are arranged on curve segments of which at least two segments form opposite angles with a plane perpendicular to the axis of the rotor.

La disposition des outils sur la surface du corps du rotor, notamment lorsqu'on la représente sur la surface développée du corps du rotor, est telle que les outils sont disposés selon un motif géométrique composé par une pluralité de segments de courbe, attachés les uns aux autres ou non. L'ensemble des outils disposés sur un segment de courbe constitue une suite d'outils. Nous appelons ici, un « segment de courbe » toute ligne, droite ou courbe, ayant une orientation moyenne et permettant de définir un angle moyen entre ce segment de courbe et un plan perpendiculaire à l'axe du rotor.The arrangement of the tools on the surface of the rotor body, especially when it is represented on the developed surface of the rotor body, is such that the tools are arranged in a pattern geometric composed by a plurality of curve segments, attached to each other or not. All the tools arranged on a curve segment constitutes a series of tools. We here call a "curve segment" any line, straight line or curve, having an average orientation and allowing to define a mean angle between this curve segment and a plane perpendicular to the axis of the rotor.

Lorsque l'on représente la surface développée du rotor, on obtient un rectangle dont deux côtés sont parallèles à l'axe du rotor: Selon les dimensions du rotor, il s'agit des grands côtés ou des petits côtés. Les deux autres côtés sont perpendiculaires à l'axe. Dans la description ci-après, les côtés les plus longs correspondent aux bords des faces extrêmes du rotor. Ces côtés sont donc perpendiculaires à l'axe du rotor et orientés dans le sens de la rotation du rotor. Et les côtés les plus courts du rectangle correspondent à une génératrice du corps cylindrique dans ses positions au début et à la fin du développement de la surface.When we represent the developed surface of the rotor, we obtains a rectangle whose two sides are parallel to the axis of the rotor: Depending on the rotor dimensions, these are the long sides or short sides. The other two sides are perpendicular to the axis. In the description below, the longest sides correspond to the edges of the end faces of the rotor. These sides are therefore perpendicular to the axis of the rotor and oriented in the direction of rotation of the rotor. And the shorter sides of the rectangle correspond to a generatrix of the cylindrical body in its positions at the start and end of the development of the area.

Les côtés les plus longs de la surface développée du rotor, comme tout autre plan perpendiculaire à l'axe du rotor, peuvent servir indifféremment, dans le cas de la présente invention, à définir l'orientation moyenne des segments de courbe sur lesquels sont disposés les outils formant une suite d'outils. Si l'on considère l'orientation des segments de courbe par rapport à l'un quelconque des plans perpendiculaires à l'axe du rotor, ces segments de courbe forment, deux à deux, des angles opposés avec ce plan.The longest sides of the developed surface of the rotor, like any other plane perpendicular to the axis of the rotor, can serve indifferently, in the case of the present invention, for define the average orientation of the curve segments on which the tools are arranged forming a series of tools. If we consider the orientation of the curve segments with respect to any one planes perpendicular to the rotor axis, these segments of curve form, two by two, opposite angles with this plane.

L'invention concerne également les caractéristiques ci-après considérées isolément ou selon toutes leurs combinaisons techniquement possibles:

  • Tous les segments de courbe situés du même côté d'un plan perpendiculaire à l'axe du rotor forment une ligne en zigzag. Cette disposition correspond à un mode de réalisation avantageux de l'invention selon lequel les outils sont montés sur le rotor de façon que les points d'attaque des outils, représentés par les segments de courbe, forment un motif ressemblant à une suite de zigzags, appelée ci-avant une ligne en zigzag. Plus particulièrement, les segments peuvent former une structure en forme de W.
  • Selon un mode de réalisation préférée de l'invention, les outils sont montés sur le rotor de façon que les segments de courbe définissent au moins deux suites de segments disposées de part et d'autre d'un plan perpendiculaire à l'axe du rotor et à une distance axiale l'une de l'autre.
    Souvent, la disposition des outils sur deux lignes en zigzag, l'une à côté de l'autre, est suffisante pour obtenir de bons résultats de malaxage avec le rotor de l'invention. Toutefois, une disposition des outils sur trois ou quatre lignes en zigzag, correspondant à une structure en trois ou quatre W, pour des rotors de grande longueur axiale, est également concevable.
  • Les suites de segments occupent avantageusement des parties de longueurs axiales égales du corps du rotor.
  • Les segments de courbe correspondants de deux suites de segments adjacentes sont angulairement décalés l'un par rapport à l'autre.
    Ce décalage dans le sens de rotation évite aussi bien une disposition parallèle des suites de segments qu'une disposition symétrique par rapport à un plan perpendiculaire à l'axe du rotor passant entre ces suites de segments et contribue ainsi à l'amélioration de la qualité du malaxage.
  • Le corps du rotor comprend une pluralité de disques disposés sur l'axe du rotor et à une distance axiale l'un de l'autre. Chacun des disques est pourvu à sa périphérie d'au moins un outil destiné à travailler le sol.
    Selon un mode de réalisation avantageux de l'invention, chacun de ces disques est constitué par quatre supports d'outil montés dans un même plan perpendiculaire à l'axe du rotor. Les disques sont orientés angulairement de façon que par le décalage angulaire entre deux disques voisins, les outils sont disposés sur les segments de courbe décrits plus haut.
The invention also relates to the characteristics below considered in isolation or in all their technically possible combinations:
  • All the curve segments located on the same side of a plane perpendicular to the axis of the rotor form a zigzag line. This arrangement corresponds to an advantageous embodiment of the invention according to which the tools are mounted on the rotor so that the points of attack of the tools, represented by the curve segments, form a pattern resembling a series of zigzags, called above a zigzag line. More particularly, the segments can form a W-shaped structure.
  • According to a preferred embodiment of the invention, the tools are mounted on the rotor so that the curve segments define at least two series of segments arranged on either side of a plane perpendicular to the axis of the rotor and at an axial distance from each other.
    Often, the arrangement of the tools on two zigzag lines, one next to the other, is sufficient to obtain good mixing results with the rotor of the invention. However, an arrangement of the tools on three or four zigzag lines, corresponding to a structure in three or four W, for rotors of great axial length, is also conceivable.
  • The series of segments advantageously occupy parts of equal axial lengths of the rotor body.
  • The corresponding curve segments of two sequences of adjacent segments are angularly offset from one another.
    This offset in the direction of rotation avoids both a parallel arrangement of the series of segments and a symmetrical arrangement with respect to a plane perpendicular to the axis of the rotor passing between these series of segments and thus contributes to improving the quality. mixing.
  • The rotor body includes a plurality of discs arranged on the axis of the rotor and at an axial distance from each other. Each of the discs is provided at its periphery with at least one tool intended for working the soil.
    According to an advantageous embodiment of the invention, each of these discs consists of four tool supports mounted in the same plane perpendicular to the axis of the rotor. The discs are angularly oriented so that by the angular offset between two neighboring discs, the tools are arranged on the curve segments described above.

Le but de l'invention est également atteint par une machine comprenant un rotor tel que celui décrit ci-avant.The object of the invention is also achieved by a machine comprising a rotor such as that described above.

Puisque le rotor de l'invention se distingue des rotors antérieurement utilisés essentiellement par la disposition des outils, un remplacement d'un rotor antérieur par un rotor de l'invention n'entraíne pas nécessairement une modification de la machine.Since the rotor of the invention is distinguished from rotors previously used primarily by the disposal of tools, a replacement of an anterior rotor by a the invention does not necessarily result in a modification of the machine.

D'autres caractéristiques et avantages de l'invention ressortiront de la description d'un mode de réalisation ci-après en référence aux dessins. Dans ces dessins:Other characteristics and advantages of the invention will emerge from the description of an embodiment below in reference to the drawings. In these drawings:

La Figure 1 représente un rotor d'une stabilisatrice selon l'invention dans une vue en perspective.Figure 1 shows a rotor of a stabilizer according to the invention in a perspective view.

La Figure 2 montre un support d'outil pourvu d'un outil destiné à équiper le rotor.Figure 2 shows a tool holder with a tool intended to equip the rotor.

La Figure 3 montre le rotor de la Figure 1 en une vue axiale.Figure 3 shows the rotor of Figure 1 in an axial view.

La Figure 4 représente schématiquement le décalage angulaire entre deux disques successifs du rotor de l'invention.Figure 4 schematically represents the offset angular between two successive discs of the rotor of the invention.

La Figure 5 représente la surface développée du rotor et une disposition des outils.Figure 5 shows the developed surface of the rotor and a arrangement of tools.

La Figure 6 montre le rotor de la Figure 1 en une vue latérale par rapport à l'axe du rotor.Figure 6 shows the rotor of Figure 1 in a side view relative to the axis of the rotor.

Un rotor d'une stabilisatrice de sol comporte, selon un mode de réalisation préféré de l'invention, un corps cylindrique 1 ayant un axe A et une surface extérieure 2. Le corps 1 est cylindrique de révolution et peut être réalisé en une seule pièce ou constitué de plusieurs éléments cylindriques successivement attachés les uns aux autres et ayant le même axe A. Le corps 1 du rotor est pourvu d'une pluralité de disques 3 disposés sur l'axe A du rotor et à une distance axiale l'un de l'autre. Chacun des disques 3 est constitué de deux, trois ou quatre supports d'outil 31 dont chacun porte, à sa périphérie 32, un outil 4 destiné à travailler le sol. Le nombre précis de supports d'outil par disque dépend de la structure ou du motif géométrique choisi selon laquelle, ou selon lequel, les outils doivent être disposés.A rotor of a soil stabilizer comprises, according to a mode preferred embodiment of the invention, a cylindrical body 1 having an axis A and an outer surface 2. The body 1 is cylindrical with revolution and can be made in one piece or made of several cylindrical elements successively attached to each other to the others and having the same axis A. The body 1 of the rotor is provided of a plurality of discs 3 arranged on the axis A of the rotor and at a axial distance from each other. Each of the discs 3 is made up of two, three or four tool supports 31 each of which carries, at its periphery 32, a tool 4 intended for working the soil. The number tool holders per disc depends on the structure or geometric pattern chosen according to which, or according to which, the tools must be arranged.

Il est bien entendu concevable que chacun des disques soit constitué par un élément annulaire entier, quelle que soit la forme de sa périphérie ou par deux ou plusieurs supports d'outil formant un ensemble annulaire. Toutefois, le plus souvent les supports d'outil montés dans un même plan n'entourent pas entièrement le corps du rotor. Mais, même pour une telle configuration nous désignerons la forme de ces supports par le terme « disque ».It is of course conceivable that each of the discs is consisting of a whole annular element, whatever the shape from its periphery or by two or more tool holders forming a ring assembly. However, most often the supports of tools mounted in the same plane do not completely surround the rotor body. But even for such a configuration we designate the form of these supports by the term "disc".

Les disques disposés sur l'axe A du rotor sont orientés angulairement de façon qu'il y a un décalage angulaire δ entre les outils correspondants 4 et 4' de disques voisins. Lorsque les angles de décalage entre les outils d'une suite d'outils disposée sur un segment de courbe ont la même dimension, le segment de courbe a, sur la surface développée du rotor, la forme d'une droite. Si, par contre, ces angles varient, on obtient une ligne arquée ou tout autre forme courbe. Une disposition des outils 4 sur des segments de courbe rectilignes 5 et 6 correspondant à un mode de réalisation préféré de l'invention, est représentée sur la Figure 5.The discs arranged on the axis A of the rotor are oriented angularly so that there is an angular offset δ between the corresponding tools 4 and 4 'from neighboring discs. When the angles offset between the tools of a suite of tools arranged on a curve segment have the same dimension, the curve segment has, on the developed surface of the rotor, the shape of a straight line. If, by against, these angles vary, we get an arched line or all other curved shape. A layout of tools 4 on segments of straight curves 5 and 6 corresponding to an embodiment preferred of the invention, is shown in Figure 5.

La surface développée du rotor représenté sur la Figure 5 montre une disposition préférée des outils 4 sur la surface 2 du corps 1 du rotor. Selon cette disposition, les outils 4 sont disposés principalement par groupes de six ou de sept outils avec principalement deux orientations qui se distinguent l'une de l'autre par l'angle que les segments définissent avec un plan P perpendiculaire à l'axe A du rotor. Ce plan P peut être un plan médian Po situé au milieu entre les deux extrémités du corps 1 ou tout autre plan P1 choisi arbitrairement sur la longueur axiale du corps 1 et matérialisé par l'un quelconque des disques 3. Pour simplifier la description par rapport à la Figure 5, nous nous rapportons par la suite au plan Po.The developed surface of the rotor shown in Figure 5 shows a preferred arrangement of the tools 4 on the surface 2 of the body 1 of the rotor. According to this arrangement, the tools 4 are arranged mainly in groups of six or seven tools with mainly two orientations which are distinguished from each other by the angle that the segments define with a plane P perpendicular to the axis A rotor. This plane P can be a median plane P o situated in the middle between the two ends of the body 1 or any other plane P 1 chosen arbitrarily over the axial length of the body 1 and materialized by any one of the discs 3. To simplify the description compared to Figure 5, we then relate to the plane P o .

Les segments de courbe 5 comprennent des segments 51 dont la longueur correspond à un emplacement de six outils 4 successifs et des segments 52 dont la longueur correspond à l'emplacement de sept outils 4 successifs. Les segments de courbe 51 et 52 sont orientés de façon à former avec le plan P0 un angle α1 ou un angle α2. Les angles α1 et α2 peuvent être, mais ne sont pas nécessairement, de même grandeur.The curve segments 5 include segments 51 whose length corresponds to a location of six successive tools 4 and segments 52 whose length corresponds to the location of seven successive tools 4. The curve segments 51 and 52 are oriented so as to form with the plane P 0 an angle α 1 or an angle α 2 . The angles α 1 and α 2 can be, but are not necessarily, of the same magnitude.

Les segments de courbe 6 comprennent des segments 61 dont la longueur correspond à l'emplacement de six outils 4 et des segments 62 dont la longueur correspond à l'emplacement de sept outils 4. Les segments 61 et 62 sont orientés de façon à former avec le plan Po respectivement un angle β1 ou un angle β2. Les angles β1 et β2 peuvent être, mais ne sont pas nécessairement, de même grandeur.The curve segments 6 comprise segments 61 whose length corresponds to the location of six tools 4 and segments 62 whose length corresponds to the location of seven tools 4. The segments 61 and 62 are oriented so as to form with the plane P o respectively an angle β 1 or an angle β 2 . The angles β 1 and β 2 can be, but are not necessarily, of the same magnitude.

La Figure 5 montre par ailleurs des segments de courbe 63 et 64 qui se suivent sur la surface 2 du corps 1 et qui correspondent ainsi, en ce qui concerne la longueur totale de ces deux segments, au segment 61 dont la longueur totale correspond à l'emplacement d'une suite de six outils 4.Figure 5 also shows curve segments 63 and 64 which follow on the surface 2 of the body 1 and which correspond so, with regard to the total length of these two segments, to segment 61 whose total length corresponds to the location a suite of six tools 4.

Dans la disposition des outils selon l'invention, les orientations des segments de courbe et, en conséquence, les mesures des angles α1, α2, β1 et β2 se distinguent les unes des autres de la façon suivante. L'orientation des segments 51, exprimée par l'angle α1, est mesurée par rapport au plan P0 en regardant, sur la Figure 5, contre le sens de rotation R. L'orientation des segments 52, caractérisée par l'angle α2, est mesurée par rapport au plan P0 en regardant, sur la Figure 5, dans le sens de rotation R. Chacun des angles α1 et α2 est mesuré à partir du plan P0 dans le sens des aiguilles d'une montre. Les deux angles s'ouvrent sur des côtés différents du plan P0. In the arrangement of the tools according to the invention, the orientations of the curve segments and, consequently, the measurements of the angles α 1 , α 2 , β 1 and β 2 are distinguished from one another as follows. The orientation of the segments 51, expressed by the angle α 1 , is measured relative to the plane P 0 by looking, in FIG. 5, against the direction of rotation R. The orientation of the segments 52, characterized by the angle α 2 , is measured relative to the plane P 0 by looking, in Figure 5, in the direction of rotation R. Each of the angles α 1 and α 2 is measured from the plane P 0 in the direction of the hands of a watch. The two angles open on different sides of the plane P 0 .

De façon correspondante, l'orientation du segment 61 et des segments 63 et 64 exprimée par l'angle β1 est mesurée par rapport au plan P0 et à partir de celui-ci en regardant contre le sens de rotation R. L'orientation des segments 62, exprimée par l'angle β2, est mesurée par rapport au plan P0 en regardant dans le sens de rotation R. Chacun des angles β1 et β2 est mesuré à partir du plan P0 dans le sens contraire des aiguilles d'une montre. Les deux angles s'ouvrent sur des côtés différents du plan P0.Correspondingly, the orientation of the segment 61 and of the segments 63 and 64 expressed by the angle β 1 is measured relative to and from the plane P 0 by looking against the direction of rotation R. The orientation segments 62, expressed by the angle β 2 , is measured with respect to the plane P 0 by looking in the direction of rotation R. Each of the angles β 1 and β 2 is measured from the plane P 0 in the opposite direction of Clockwise. The two angles open on different sides of the plane P 0 .

Dans la disposition de l'invention, représentée sur la Figure 5, les segments de courbe disposés à gauche du plan P0, référencés dans l'ordre dans le sens de rotation R par 63, 52, 61, 52 et 64, constituent une suite de segments 7. Les segments de courbe disposés du côté droit par rapport au plan P0, référencés dans l'ordre dans le sens de rotation R par 62, 51, 62 et 51, forment une suite de segments 8. Les suites de segments 7 et 8 occupent sur le corps du rotor des sections de même longueur axiale. Autrement dit, chacune des suites de segments 7 et 8 définit les positions sur lesquelles les outils 4 sont disposés respectivement dans l'une ou dans l'autre moitié des deux moitiés adjacentes, dans le sens axial du rotor, du corps 1. Chacune des structures 7 et 8 constitue une structure en W. Dans chacune des suites de segments 7 et 8, les segments de courbe ne se suivent pas directement, c'est-à-dire ne sont pas attachés l'un à l'autre, mais constituent une sorte de suite interrompue. L'interruption se fait soit par un décalage axial d'un outil vers une position isolée, comme cela est le cas des outils référencés 41 et 42. Une autre possibilité d'interruption de la suite de segments est constituée par un décalage du début du segment de courbe suivant représenté par les outils 43 et 44, par rapport à l'emplacement du dernier outil du segment précédent, représenté par les outils 45 et 46, de façon que les outils 45 et 46 ne soient pas dans l'alignement des segments de courbe auxquels appartiennent les outils 43 et 44.In the arrangement of the invention, shown in Figure 5, the curve segments arranged to the left of the plane P 0 , referenced in order in the direction of rotation R by 63, 52, 61, 52 and 64, constitute a sequence of segments 7. The curve segments arranged on the right side with respect to the plane P 0 , referenced in order in the direction of rotation R by 62, 51, 62 and 51, form a sequence of segments 8. The sequences of segments 7 and 8 occupy sections of the same axial length on the body of the rotor. In other words, each of the series of segments 7 and 8 defines the positions on which the tools 4 are disposed respectively in one or the other half of the two adjacent halves, in the axial direction of the rotor, of the body 1. Each of the structures 7 and 8 constitute a structure in W. In each of the series of segments 7 and 8, the curve segments do not follow each other directly, that is to say are not attached to each other, but constitute a kind of interrupted sequence. The interruption is done either by an axial offset of a tool towards an isolated position, as is the case of the tools referenced 41 and 42. Another possibility of interruption of the series of segments is constituted by an offset from the start of the next curve segment represented by tools 43 and 44, relative to the location of the last tool of the previous segment, represented by tools 45 and 46, so that tools 45 and 46 are not in line with the segments of curve to which the tools 43 and 44 belong.

Chacune des suites de segments 7 et 8 est formée de façon que deux segments successifs de cette suite forment des angles opposés avec le plan P0. Sur la Figure 5, cette disposition est représentée par les angles opposés α2 et β1 pour la suite de segments 7 et par les angles α1 et β2 pour la suite de segments 8.Each of the series of segments 7 and 8 is formed so that two successive segments of this series form opposite angles with the plane P 0 . In FIG. 5, this arrangement is represented by the opposite angles α 2 and β 1 for the series of segments 7 and by the angles α 1 and β 2 for the series of segments 8.

Lorsqu'on considère les deux suites de segments 7 et 8 simultanément, on constate que des segments de courbe correspondants de ces deux suites de segments adjacents sont angulairement décalés l'un par rapport à l'autre comme cela a été déjà mentionné en référence aux Figures 1 et 3. Les segments de courbe correspondant au mode de réalisation représenté sur la Figure 5 sont, dans le sens de rotation R, les segments de courbe 52 et 62, les segments 61 et 51, les segments 52 et 62 et les segments 63, 64 et 51.When we consider the two series of segments 7 and 8 simultaneously, we see that segments of the curve correspondents of these two sequences of adjacent segments are angularly offset from each other as has been already mentioned with reference to Figures 1 and 3. The segments of curve corresponding to the embodiment shown in the Figure 5 are, in the direction of rotation R, the curve segments 52 and 62, segments 61 and 51, segments 52 and 62 and the segments 63, 64 and 51.

Selon le mode de réalisation représenté sur les Figures 1 à 5 et décrit ci-avant, les outils sont disposés sur deux suites de segment 7 et 8 disposés respectivement sur l'une ou sur l'autre de deux moitiés 11 et 12 axialement adjacentes du corps 1. Cette disposition est indiquée sur la Figure 6 de façon schématique dans une vue latérale par rapport à l'axe A du rotor.According to the embodiment shown in Figures 1 to 5 and described above, the tools are arranged on two sequences of segment 7 and 8 respectively arranged on one or the other of two axially adjacent halves 11 and 12 of the body 1. This layout is shown schematically in Figure 6 in a side view with respect to the axis A of the rotor.

Les signes de référence insérés après les caractéristiques techniques mentionnées dans les revendications, ont pour seul but de faciliter la compréhension de ces dernières, et n'en limitent aucunement la portée.The reference signs inserted after the characteristics techniques mentioned in the claims, have the sole purpose to facilitate the understanding of these, and do not limit them in no way the scope.

Claims (7)

Rotor d'une stabilisatrice de sol comportant un corps (1) cylindrique ayant un axe (A) et une surface extérieure (2), le corps (1) étant pourvu sur sa surface (2) d'une pluralité d'outils (4) destinés à travailler le sol, les outils (4) étant disposés sur des segments de courbe (5, 6) définis de façon à constituer au moins deux suites de segments (7, 8) disposées de part et d'autre d'un plan (P) perpendiculaire à l'axe (A) du rotor et à une distance axiale l'une de l'autre, et formant deux à deux (51, 61 ; 52, 63) des angles opposés (α, β) avec le plan (P),
   caractérisé en ce que les segments de courbe (51, 61 ; 52, 63) correspondants de deux suites de segments (7, 8) adjacents sont angulairement décalés l'un par rapport à l'autre.Rotor of a soil stabilizer comprising a cylindrical body (1) having an axis (A) and an outer surface (2), the body (1) being provided on its surface (2) with a plurality of tools (4 ) intended for working the soil, the tools (4) being arranged on curve segments (5, 6) defined so as to constitute at least two series of segments (7, 8) arranged on either side of a plane (P) perpendicular to the axis (A) of the rotor and at an axial distance from each other, and forming two by two (51, 61; 52, 63) opposite angles (α, β) with the plane (P),
characterized in that the corresponding curve segments (51, 61; 52, 63) of two series of adjacent segments (7, 8) are angularly offset with respect to each other. Rotor selon la revendication 1, caractérisé en ce que les segments de courbe ne se suivent pas directement, mais constituent une sorte de suite interrompue.Rotor according to claim 1, characterized in that the curve segments do not follow each other directly, but constitute a kind of interrupted sequence. Rotor selon la revendication 1, caractérisé en ce que tous les segments de courbe (5, 6) situés du même côté d'un plan (P) perpendiculaire à l'axe (A) forment une ligne en zigzag.Rotor according to claim 1, characterized in that all the curve segments (5, 6) located on the same side of a plane (P) perpendicular to the axis (A) form a zigzag line. Rotor selon la revendication 1, caractérisé en ce que tous les segments de courbe (5, 6) situés du même côté d'un plan (P) perpendiculaire à l'axe (A) forment une structure en forme de W.Rotor according to claim 1, characterized in that all the curve segments (5, 6) located on the same side of a plane (P) perpendicular to the axis (A) form a W-shaped structure Rotor selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les suites de segments (7, 8) occupent des parties (11, 12) de longueur axiale égale du corps (1) du rotor.Rotor according to any one of Claims 1 to 4, characterized in that the series of segments (7, 8) occupy parts (11, 12) of equal axial length of the body (1) of the rotor. Rotor selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le corps (1) du rotor est pourvu d'une pluralité de disques (3) disposés sur l'axe (A) du rotor à une distance axiale l'un de l'autre et présentant une périphérie (32), chacun des disques (3) portant à sa périphérie (32) au moins un des outils (4) destinés à travailler le sol.Rotor according to any one of Claims 1 to 5, characterized in that the rotor body (1) is provided with a plurality of discs (3) arranged on the axis (A) of the rotor at a axial distance from each other and having a periphery (32), each of the discs (3) carrying at its periphery (32) at least one tools (4) for working the soil. Machine destinée à couper un sol, notamment une stabilisatrice de sol, caractérisée en ce qu'elle comprend un rotor selon l'une quelconque des revendications 1 à 6.Machine for cutting soil, in particular a soil stabilizer, characterized in that it comprises a rotor according to any one of claims 1 to 6.
EP00401704A 1999-06-16 2000-06-15 Rotor for soil stabilising apparatus and soil stabilising apparatus with such a rotor Withdrawn EP1060856A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9907634A FR2795104B1 (en) 1999-06-16 1999-06-16 ROTOR OF A SOIL STABILIZING MACHINE AND SOIL STABILIZING MACHINE COMPRISING SUCH A ROTOR
FR9907634 1999-06-16

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EP1060856A1 true EP1060856A1 (en) 2000-12-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2554747A3 (en) * 2011-08-04 2016-10-12 BOMAG GmbH Milling rotor for processing soil material and soil cultivation machine with such a rotor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498385A (en) * 1968-01-12 1970-03-03 Raygo Inc Cutting tool with detachable blade means
US3732023A (en) * 1969-03-11 1973-05-08 Metradon Ass Soil stabilization apparatus
FR2459329A1 (en) * 1979-06-15 1981-01-09 Crampagne Raymond Rotor for cutting, milling or polishing - has helically disposed tools which move debris along opposing lateral paths
US4720207A (en) * 1986-08-29 1988-01-19 Koehring Company Segmented rotor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3498385A (en) * 1968-01-12 1970-03-03 Raygo Inc Cutting tool with detachable blade means
US3732023A (en) * 1969-03-11 1973-05-08 Metradon Ass Soil stabilization apparatus
FR2459329A1 (en) * 1979-06-15 1981-01-09 Crampagne Raymond Rotor for cutting, milling or polishing - has helically disposed tools which move debris along opposing lateral paths
US4720207A (en) * 1986-08-29 1988-01-19 Koehring Company Segmented rotor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2554747A3 (en) * 2011-08-04 2016-10-12 BOMAG GmbH Milling rotor for processing soil material and soil cultivation machine with such a rotor

Also Published As

Publication number Publication date
FR2795104A1 (en) 2000-12-22
FR2795104B1 (en) 2001-09-07

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