EP0136442A1 - Railway ballast screen permitting the elimination of parts of earth and ballast elements of less than prescribed size - Google Patents

Railway ballast screen permitting the elimination of parts of earth and ballast elements of less than prescribed size Download PDF

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Publication number
EP0136442A1
EP0136442A1 EP84108697A EP84108697A EP0136442A1 EP 0136442 A1 EP0136442 A1 EP 0136442A1 EP 84108697 A EP84108697 A EP 84108697A EP 84108697 A EP84108697 A EP 84108697A EP 0136442 A1 EP0136442 A1 EP 0136442A1
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EP
European Patent Office
Prior art keywords
screen according
ballast
elements
discs
screen
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EP84108697A
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German (de)
French (fr)
Inventor
Romolo Panetti
Sergio Valditerra
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Speno International SA
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Speno International SA
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Publication of EP0136442A1 publication Critical patent/EP0136442A1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/06—Renewing or cleaning the ballast in situ, with or without concurrent work on the track

Definitions

  • ballast strippers of the ballast of the railways most used today are equipped with screens constituted by inclined screens on which the ballast flows.
  • the sieves are animated by vibrations generated by unbalances.
  • the subject of the present invention is a screening device of high efficiency and small size, easily adaptable to the specific conditions of the ballast to be screened constituted by a conveyor-separator simultaneously allowing a screening action to separate the elements of the ballast of a caliber less than that prescribed and the earth from the other elements of this ballast and transport these other elements of the ballast to a desired destination.
  • Figures 6 to 8 are block diagrams illustrating different possible variants of rotary shafts and the active elements they carry.
  • the present screen comprises a plurality of active screening elements causing the ballast to be agitated in order to separate the soil, its screening and its transport to a desired destination.
  • the present screen can be used to convey the ballast, during its screening, either horizontally, or along an inclined up or down plane. It is therefore possible, simultaneously with screening, to transport the ballast from a low point to a high point of the machine on which it is mounted, which allows the production of simpler machines by eliminating conveyors, and more compact.
  • the first embodiment of the screen, illustrated in Figures 1 to 3, for the removal of soil and ballast elements of a caliber less than the prescribed caliber is constituted by a conveyor-separator.
  • This conveyor-separator comprises a plurality of active screening elements 1, formed here by discs. These discs 1 have at their periphery notches 2 or tooth-shaped formations 3. These discs 1 are mounted on rotary shafts 4 of parallel axes driven in rotation, all in the same direction, by motors 5. Each rotary shaft 4 is pivoted in bearings 6 rigidly fixed to the side walls 7 of a container 8 intended to receive the ballast to be treated.
  • Each shaft 4 has at its ends toothed wheels 9 meshing with chains 10.
  • Each motor 5 drives one of the shafts 4 directly, as well as the shaft which precedes it via a chain 10.
  • the pairs of shafts 4 can be started up successively. It is also possible to have different rotational speeds between the pairs of shafts driven by different motors.
  • the speed and the direction of rotation of the different shafts can be adapted separately to choose the quality according to the conditions of the ballast and adapt its speed of passage through the screening device.
  • the discs 1 are staggered and the assembly which they form with the shafts 4 constitutes the bottom of the container 8. This bottom has free spaces between the discs 1 and the shafts 4 whose dimensions correspond to those of the elements of the ballast to eliminate.
  • the elements of the ballast are introduced into the end A of the container 8 and are transported towards the end B thereof by the rotation of the discs.
  • the end B of the container can be at the same height as the end A of this container, it can also be above or below the end A of the container.
  • the active screening elements 1 the elements of the ballast are agitated and shaken, which causes their separation and the elimination of most of the earth which coats them. All the elements of the ballast whose dimensions are smaller than the prescribed gauge and the earths fall through the free spaces between the discs 1 and the shafts 4 and are thus eliminated.
  • the elements of the remaining ballast are themselves conveyed by the rotation of the discs 1 towards the end B of the screen where they are discharged.
  • the fraction of the ballast to be stored is conveyed from one end to the other of the screen, even if the output of the screen is higher or at the same height as its entrance.
  • the screen illustrated in Figures 4 and 5, it comprises a container 11 provided with an openwork bottom 15. Under the bottom 15 are arranged active screening elements constituted by parallel axes 12 each carrying a cylindrical drum 13 provided with drive formations or teeth 14. These axes 12 are driven in rotation, all in the same direction, as in the first embodiment described by a motor 18.
  • the teeth 14 of the different drums 13 are aligned in the longitudinal direction of the screen and pass during their rotation through the holes in the bottom 15.
  • the holes in the bottom 15 are larger than the section of the teeth 14 so as to provide free spaces of a dimension corresponding to the size of the elements of the ballast to be eliminated.
  • the plates forming the bottom 15 can be interchangeable to modify the dimensions of the voids and therefore the size of the elements of the ballast to be eliminated.
  • This screen is also provided with a device for washing the ballast during its screening and transport, constituted by perforated pipes 16 supplied with water or washing liquid by conduits 17. These pipes 16 extend transversely relative to the screen and are located above and preferably between the drums 13. This washing device allows better elimination of the earth coating the elements of the ballast and reduces the dust generated by the operation of the screen.
  • FIG. 6 very schematically illustrates a variant in which the shafts 4 and the disks 1 which they carry are oval.
  • the discs 1 carried by two adjacent screens are offset by 90 ° .
  • FIG. 7 another variant is illustrated in which the circular discs 1 are mounted eccentrically on the shafts 4.
  • the corresponding discs carried by adjacent shafts are angularly offset from each other.
  • the variant illustrated in FIG. 8, on the other hand, is more particularly intended for a screen disposed along a rising inclined plane.
  • the shape of the teeth 3 of the discs 1 mounted on the shafts 4 is similar to a scraper bucket and allows elements of the ballast to be conveyed as far as the tooth of the disc carried by the neighboring shaft, imposing an elevation on them.
  • the transport of the ballast on the screening device is not done by gravity, but it is mechanically driven. Therefore, the screening device is not necessarily tilted downward. It can be horizontal or upright, which allows construction to easily comply with the requirements for rail gauge, even with a screening device of great length.
  • said motor shafts can be started and actuated successively, starting with those closest to the exit point of the ballast to be screened on the screening device, allowing said screening device to operate without any difficulty, even when the latter is in charge.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Abstract

This screen comprises a plurality of active screening elements (3) mounted on a number of shafts (4) driven in rotation by one or more motors (5). The ballast elements having less than the prescribed size fall between these screening elements (3) through the effect of gravity, the latter elements conveying the residual ballast elements towards the outlet end (B) of the screen. <IMAGE>

Description

Les dégarnisseuses-cribleuses du ballast des voies ferrées les plus utilisées actuellement sont équipées de cribles constitués par des tamis inclinés sur lesquels s'écoule le ballast. Les tamis sont animés de vibrations engendrées par des balourds.The ballast strippers of the ballast of the railways most used today are equipped with screens constituted by inclined screens on which the ballast flows. The sieves are animated by vibrations generated by unbalances.

De tels dispositifs donnent des résultats satisfaisants, mais leur rendement est limité. Il est conditionné par les dimensions et l'inclinaison des tamis qui doivent respecter en hauteur en particulier les prescriptions de gabarit du matériel roulant sur les voies ferrées.Such devices give satisfactory results, but their performance is limited. It is conditioned by the dimensions and the inclination of the sieves which must respect in height in particular the size specifications of the rolling stock on the railway tracks.

Par ailleurs, leur adaptation à l'état variable du ballast à cribler exige l'adjonction de dispositifs mécaniques relativement délicats et compliqués. Le criblage continu en voie implique l'arrêt fréquent de la machine au passage de certains obstacles. Pour éviter un amoncellement du ballast localisé sur la voie ou un ensilement de celui-ci, il faut également arrêter le crible qui reste en charge (plusieurs tonnes suivant les cas). La remise en marche des cribles dans ces conditions pose de graves problèmes vu les masses en jeu.Furthermore, their adaptation to the variable state of the ballast to be screened requires the addition of relatively delicate and complicated mechanical devices. Continuous screening on the track involves frequent stopping of the machine when passing certain obstacles. To avoid a heap of ballast located on the track or a silage thereof, it is also necessary to stop the screen which remains in charge (several tonnes depending on the case). Restarting the screens under these conditions poses serious problems in view of the masses involved.

On a proposé pour remédier à ces inconvénients de faire passer le ballast sur plusieurs tamis successifs (cf. par exemple demande de brevet EP 0.059.500) mais ceci au détriment des dimensions de l'ensemble de la machine.It has been proposed to remedy these drawbacks to pass the ballast over several successive sieves (cf. for example patent application EP 0.059.500) but this to the detriment of the dimensions of the whole machine.

La présente invention a pour objet un dispositif de criblage de haut rendement et de faible encombrement, facilement adaptable aux conditions particulières du ballast à cribler constitué par un convoyeur-séparateur permettant simultanément une action de criblage pour séparer les éléments du ballast d'un calibre inférieur à celui prescrit et les terres des autres éléments de ce ballast et transporter ces autres éléments du ballast vers une destination désirée.The subject of the present invention is a screening device of high efficiency and small size, easily adaptable to the specific conditions of the ballast to be screened constituted by a conveyor-separator simultaneously allowing a screening action to separate the elements of the ballast of a caliber less than that prescribed and the earth from the other elements of this ballast and transport these other elements of the ballast to a desired destination.

Le crible selon la présente invention permettant de réaliser le but énoncé plus haut est réalisé selon les caractéristiques énumérées à la revendication 1.The screen according to the present invention making it possible to achieve the aim stated above is produced according to the characteristics listed in claim 1.

Le dessin annexé illustre schématiquement et à titres d'exemples quelques formes d'exécution et variantes du crible selon l'invention.

  • La figure 1 est une vue de dessus d'une première forme d'exécution du crible.
  • La figure 2 est une coupe suivant la ligne II-II de la figure 1.
  • La figure 3 est une coupe suivant la ligne III-III de la figure 1.
  • La figure 4 est une vue de dessus d'une seconde forme d'exécution du crible.
  • La figure 5 est une coupe suivant la ligne V-V de la figure 4.
The appended drawing illustrates schematically and by way of examples some embodiments and variants of the screen according to the invention.
  • Figure 1 is a top view of a first embodiment of the screen.
  • Figure 2 is a section along line II-II of Figure 1.
  • Figure 3 is a section along line III-III of Figure 1.
  • Figure 4 is a top view of a second embodiment of the screen.
  • FIG. 5 is a section along the line VV of FIG. 4.

Les figures 6 à 8 sont des schémas de principe illustrant différentes variantes possibles des arbres rotatifs et des éléments actifs qu'ils portent.Figures 6 to 8 are block diagrams illustrating different possible variants of rotary shafts and the active elements they carry.

Contrairement aux cribles connus qui comportent des éléments de criblage passifs tels des treillis à mailles de différentes grandeurs, pouvant être mis en vibration, dans lesquels l'acheminement au travers du crible du ballast s'effectue par gravité, le présent crible comporte une pluralité d'éléments de criblage actifs provoquant l'agitation du ballast en vue d'en séparer les terres, son criblage et son transport vers une destination désirée.Unlike known screens which include passive screening elements such as mesh screens of different sizes, which can be vibrated, in which the routing through the ballast screen is carried out by gravity, the present screen comprises a plurality of active screening elements causing the ballast to be agitated in order to separate the soil, its screening and its transport to a desired destination.

De cette façon, le présent crible peut être utilisé pour acheminer le ballast, pendant son criblage, soit horizontalement, soit suivant un plan incliné montant ou descendant. On peut donc, simultanément au criblage, transporter le ballast d'un point bas vers un point haut de la machine sur lequel il est monté, ce qui permet la réalisation de machines plus simples par l'élimination de convoyeurs, et plus compactes.In this way, the present screen can be used to convey the ballast, during its screening, either horizontally, or along an inclined up or down plane. It is therefore possible, simultaneously with screening, to transport the ballast from a low point to a high point of the machine on which it is mounted, which allows the production of simpler machines by eliminating conveyors, and more compact.

La première forme d'exécution du crible, illustrée aux figures 1 à 3, pour l'élimination des terres et des éléments du ballast d'un calibre inférieur au calibre prescrit est constituée par un convoyeur-séparateur.The first embodiment of the screen, illustrated in Figures 1 to 3, for the removal of soil and ballast elements of a caliber less than the prescribed caliber is constituted by a conveyor-separator.

Ce convoyeur-séparateur comporte une pluralité d'éléments de criblage actifs 1, formés ici par des disques. Ces disques 1 présentent à leur périphérie des entailles 2 ou formations en forme de dents 3. Ces disques 1 sont montés sur des arbres rotatifs 4 d'axes parallèles entraînés en rotation, tous dans le même sens, par des moteurs 5. Chaque arbre rotatif 4 est pivoté dans des paliers 6 fixés rigidement aux parois latérales 7 d'un récipient 8 destiné à recevoir le ballast à traiter.This conveyor-separator comprises a plurality of active screening elements 1, formed here by discs. These discs 1 have at their periphery notches 2 or tooth-shaped formations 3. These discs 1 are mounted on rotary shafts 4 of parallel axes driven in rotation, all in the same direction, by motors 5. Each rotary shaft 4 is pivoted in bearings 6 rigidly fixed to the side walls 7 of a container 8 intended to receive the ballast to be treated.

Chaque arbre 4 comporte à ses extrémités des roues dentées 9 engrenant avec des chaînes 10. Chaque moteur 5 entraîne un des arbres 4 directement, ainsi que l'arbre qui le précède par l'intermédiaire d'une chaîne 10.Each shaft 4 has at its ends toothed wheels 9 meshing with chains 10. Each motor 5 drives one of the shafts 4 directly, as well as the shaft which precedes it via a chain 10.

Ainsi, pour faciliter le démarrage en charge, on peut mettre en marche successivement les paires d'arbres 4. On peut également avoir des vitesses de rotation différentes entre les paires d'arbres entraînés par des moteurs différents.Thus, to facilitate starting under load, the pairs of shafts 4 can be started up successively. It is also possible to have different rotational speeds between the pairs of shafts driven by different motors.

On peut adapter séparément la vitesse et le sens de rotation des différents arbres pour choisir la qualité de criblage en fonction des conditions du ballast et adapter sa vitesse de passage dans le dispositif de criblage.The speed and the direction of rotation of the different shafts can be adapted separately to choose the quality according to the conditions of the ballast and adapt its speed of passage through the screening device.

Les disques 1 sont disposés en quinconce et l'ensemble qu'ils forment avec les arbres 4 constitue le fond du récipient 8. Ce fond comporte des espaces libres entre les disques 1 et les arbres 4 dont les dimensions correspondent à celles des éléments du ballast à éliminer.The discs 1 are staggered and the assembly which they form with the shafts 4 constitutes the bottom of the container 8. This bottom has free spaces between the discs 1 and the shafts 4 whose dimensions correspond to those of the elements of the ballast to eliminate.

En fonctionnement, les éléments du ballast sont introduits dans l'extrémité A du récipient 8 et sont transportés vers l'extrémité B de celui-ci par la rotation des disques. L'extrémité B du récipient peut être à la même hauteur que l'extrémité A de ce récipient, elle peut également être en-dessus ou en-dessous de l'extrémité A du récipient. En effet, par l'action des éléments de criblage actifs 1 les éléments du ballast sont agités et secoués, ce qui provoque leur séparation et l'élimination de la plus grande partie des terres qui les enrobent. Tous les éléments du ballast dont les dimensions sont inférieures au calibre prescrit et les terres tombent par les espaces libres entre les disques 1 et les arbres 4 et sont ainsi éliminés.In operation, the elements of the ballast are introduced into the end A of the container 8 and are transported towards the end B thereof by the rotation of the discs. The end B of the container can be at the same height as the end A of this container, it can also be above or below the end A of the container. Indeed, by the action of the active screening elements 1, the elements of the ballast are agitated and shaken, which causes their separation and the elimination of most of the earth which coats them. All the elements of the ballast whose dimensions are smaller than the prescribed gauge and the earths fall through the free spaces between the discs 1 and the shafts 4 and are thus eliminated.

Les éléments du ballast restants sont eux acheminés par la rotation des disques 1 vers l'extrémité B du crible où ils sont déversés.The elements of the remaining ballast are themselves conveyed by the rotation of the discs 1 towards the end B of the screen where they are discharged.

Par l'utilisation d'une pluralité d'éléments de criblage actifs, rotatifs, on achemine la fraction du ballast à conserver d'une extrémité à l'autre du crible et ceci même si la sortie du crible est plus élevée ou à la même hauteur que son entrée.By using a plurality of active, rotating screening elements, the fraction of the ballast to be stored is conveyed from one end to the other of the screen, even if the output of the screen is higher or at the same height as its entrance.

Dans la seconde forme d'exécution du crible illustrée aux figures 4 et 5, celui-ci comporte un récipient 11 muni d'un fond ajouré 15. Sous le fond 15 sont disposés des éléments de criblage actifs constitués par des axes parallèles 12 portant chacun un tambour cylindrique 13 muni de formations d'entrainement ou dents 14. Ces axes 12 sont entrainés en rotation, tous dans le même sens, comme dans la première forme d'exécution décrite par un moteur 18.In the second embodiment of the screen illustrated in Figures 4 and 5, it comprises a container 11 provided with an openwork bottom 15. Under the bottom 15 are arranged active screening elements constituted by parallel axes 12 each carrying a cylindrical drum 13 provided with drive formations or teeth 14. These axes 12 are driven in rotation, all in the same direction, as in the first embodiment described by a motor 18.

Les dents 14 des différents tambours 13 sont alignées dans le sens longitudinal du crible et passent lors de leur rotation au travers des orifices du fond 15. Les orifices du fond 15 sont plus grands que la section des dents 14 de manière à ménager des espaces libres d'une dimension correspondant au calibre des éléments du ballast à éliminer. Les plaques formant le fond 15 peuvent être interchangeables pour modifier les dimensions des vides et donc le calibre des éléments du ballast à éliminer.The teeth 14 of the different drums 13 are aligned in the longitudinal direction of the screen and pass during their rotation through the holes in the bottom 15. The holes in the bottom 15 are larger than the section of the teeth 14 so as to provide free spaces of a dimension corresponding to the size of the elements of the ballast to be eliminated. The plates forming the bottom 15 can be interchangeable to modify the dimensions of the voids and therefore the size of the elements of the ballast to be eliminated.

Ce crible est encore muni d'un dispositif de lavage du ballast pendant son criblage et son transport, constitué par des tuyaux percés 16 alimentés en eau ou en liquide de lavage par des conduits 17. Ces tuyaux 16 s'étendent transversalement par rapport au crible et sont situés au-dessus et de préférence entre les tambours 13. Ce dispositif de lavage permet une meilleure élimination des terres enrobant les éléments du ballast et réduit la poussière engendrée par le fonctionnement du crible.This screen is also provided with a device for washing the ballast during its screening and transport, constituted by perforated pipes 16 supplied with water or washing liquid by conduits 17. These pipes 16 extend transversely relative to the screen and are located above and preferably between the drums 13. This washing device allows better elimination of the earth coating the elements of the ballast and reduces the dust generated by the operation of the screen.

La figure 6 illustre très schématiquement une variante dans laquelle les arbres 4 et les disques 1 qu'ils portent sont ovales. Les disques 1 portés par deux cribles adjacents sont décalés de 900.FIG. 6 very schematically illustrates a variant in which the shafts 4 and the disks 1 which they carry are oval. The discs 1 carried by two adjacent screens are offset by 90 ° .

Dans la figure 7, une autre variante est illustrée dans laquelle les disques 1 circulaires sont montés de façon excentrique sur les arbres 4. Ici également les disques correspondants portés par des arbres adjacents sont décalés angulairement les uns par rapport aux autres.In FIG. 7, another variant is illustrated in which the circular discs 1 are mounted eccentrically on the shafts 4. Here also the corresponding discs carried by adjacent shafts are angularly offset from each other.

Ces deux variantes illustrées aux figures 6 et 7 sont plus particulièrement destinées à des cribles horizontaux ou disposés suivant un plan incliné descendant.These two variants illustrated in Figures 6 and 7 are more particularly intended for horizontal screens or arranged along a descending inclined plane.

La variante illustrée à la figure 8 par contre est plus particulièrement prévue pour un crible disposé suivant un plan incliné montant. En effet, la forme des dents 3 des disques 1 montée sur les arbres 4 est analogue à un godet racleur et permet d'acheminer jusque sur la dent du disque porté par l'arbre voisin des éléments du ballast en leur.imposant une élévation.The variant illustrated in FIG. 8, on the other hand, is more particularly intended for a screen disposed along a rising inclined plane. Indeed, the shape of the teeth 3 of the discs 1 mounted on the shafts 4 is similar to a scraper bucket and allows elements of the ballast to be conveyed as far as the tooth of the disc carried by the neighboring shaft, imposing an elevation on them.

Comme on l'a vu, le transport du ballast sur le dispositif de criblage ne se fait pas par gravité, mais celui-ci est entraîné mécaniquement. De ce fait, le dispositif de criblage n'est pas nécessairement incliné vers le bas. Il peut être horizontal ou montant, ce qui permet à la construction de respecter sans difficulté les prescriptions en matière de gabarit ferroviaire, même avec un dispositif de criblage de grande longueur.As we have seen, the transport of the ballast on the screening device is not done by gravity, but it is mechanically driven. Therefore, the screening device is not necessarily tilted downward. It can be horizontal or upright, which allows construction to easily comply with the requirements for rail gauge, even with a screening device of great length.

Il est possible d'autre part d'adapter le dispositif de criblage à l'état du ballast en faisant varier simplement la vitesse de rotation des arbres moteurs portant les cames à entraînement du ballast.It is also possible to adapt the screening device to the state of the ballast by simply varying the speed of rotation of the drive shafts carrying the cams driving the ballast.

Enfin, on peut faire démarrer et actionner successivement lesdits arbres moteurs à commencer par ceux les plus proches du point de sortie du ballast à cribler sur le dispositif de criblage permettant la mise en fonction dudit dispositif de criblage sans aucune difficulté, même lorsque celui-ci est en état de charge.Finally, said motor shafts can be started and actuated successively, starting with those closest to the exit point of the ballast to be screened on the screening device, allowing said screening device to operate without any difficulty, even when the latter is in charge.

Claims (14)

1. Crible pour l'élimination d'une partie des terres et des éléments du ballast d'une dimension inférieure à un calibre prescrit, caractérisé par le fait qu'il comporte une pluralité d'éléments de criblage actifs montés sur plusieurs arbres entraînés en rotation entre lesquels les éléments du ballast inférieur au calibre prescrit tombent par gravité; ces éléments de criblage actifs transportant les éléments restants du ballast vers l'extrémité de sortie du crible.1. Screen for the elimination of a part of the earth and the elements of the ballast of a dimension lower than a prescribed gauge, characterized in that it comprises a plurality of active screening elements mounted on several trees driven in rotation between which the elements of the ballast lower than the prescribed gauge fall by gravity; these active screening elements transporting the remaining elements of the ballast to the outlet end of the screen. 2. Crible selon la revendication 1, caractérisé par le fait qu'il comporte un récipient ouvert vers le haut et dont le fond est constitué par l'ensemble des éléments de criblage actifs.2. Screen according to claim 1, characterized in that it comprises a receptacle open upwards and the bottom of which is constituted by all of the active screening elements. 3.. Crible selon la revendication 1, caractérisé par le fait qu'il comporte un récipient dont le fond est ajouré, et par le fait que les éléments de criblage actifs disposés sous ce fond comportent des formations en forme générale de dents passant au cours de leur rotation par les ouvertures dudit fond.3 .. Screen according to claim 1, characterized in that it comprises a container whose bottom is perforated, and in that the active screening elements arranged under this bottom comprise formations in the general shape of teeth passing during of their rotation through the openings of said bottom. 4. Crible selon la revendication 1, caractérisé par le fait que les éléments de criblage actifs sont constitués par des disques montés sur des arbres d'entraînement parallèles.4. Screen according to claim 1, characterized in that the active screening elements consist of discs mounted on parallel drive shafts. 5. Crible selon la revendication 4, caractérisé par le fait que les disques comportent des formations à leur périphérie constituées par des entailles ou des dents.5. Screen according to claim 4, characterized in that the discs have formations at their periphery constituted by notches or teeth. 6. Crible selon les revendications 2 et 4, caractérisé par le fait que les disques portés par deux arbres adjacents sont disposés en quinconce.6. Screen according to claims 2 and 4, characterized in that the discs carried by two adjacent shafts are staggered. 7. Crible selon les revendications 3 et 4, caractérisé par le fait que les disques portés par deux arbres adjacents sont alignés.7. Screen according to claims 3 and 4, characterized in that the discs carried by two adjacent shafts are aligned. 80 Crible selon la revendication 4, caractérisé par le fait que les disques sont excentrés par rapport à l'arbre qui les porte.80 Screen according to claim 4, characterized in that the discs are eccentric relative to the shaft which carries them. 9.. Crible selon la revendication 4, caractérisé par le fait que les disques présentent une forme ovale.9 .. Screen according to claim 4, characterized in that the discs have an oval shape. 10. Crible selon l'une des revendications 8 ou 9, caractérisé par le fait que les disques correspondants portés par deux arbres adjacents sont décalés angulairement.10. Screen according to one of claims 8 or 9, characterized in that the corresponding discs carried by two adjacent shafts are angularly offset. 11. Crible selon l'une des revendications précédentes, caractérisé par le fait qu'il est disposé suivant un plan incliné montant dans le sens de déplacement des éléments du ballast épuré.11. Screen according to one of the preceding claims, characterized in that it is arranged in an inclined plane rising in the direction of movement of the elements of the purified ballast. 12. Crible selon l'une des revendications précédentes, caractérisé par le fait qu'il comporte un dispositif de lavage du ballast en cours de criblage.12. Screen according to one of the preceding claims, characterized in that it comprises a device for washing the ballast during screening. 13. Crible selon l'une des revendications 1 à 10, caractérisé par le fait que tous les éléments de criblage actifs sont entraînés en rotation dans le même sens.13. Screen according to one of claims 1 to 10, characterized in that all the active screening elements are rotated in the same direction. 14. Crible selon l'une des revendications 1 à 11, caractérisé par le fait qu'il comporte plusieurs moteurs entraînant chacun un ou plusieurs arbres rotatifs, ces moteurs étant à commande indépendante tant en vitesse qu'en sens de rotation.14. Screen according to one of claims 1 to 11, characterized in that it comprises several motors each driving one or more rotary shafts, these motors being independently controlled both in speed and in direction of rotation.
EP84108697A 1983-08-05 1984-07-23 Railway ballast screen permitting the elimination of parts of earth and ballast elements of less than prescribed size Withdrawn EP0136442A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT67847/83A IT1168813B (en) 1983-08-05 1983-08-05 RAILWAY MASSIVE REGENERATION MACHINE
IT6784783 1983-08-05

Publications (1)

Publication Number Publication Date
EP0136442A1 true EP0136442A1 (en) 1985-04-10

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ID=11305751

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84108697A Withdrawn EP0136442A1 (en) 1983-08-05 1984-07-23 Railway ballast screen permitting the elimination of parts of earth and ballast elements of less than prescribed size
EP84108696A Withdrawn EP0146681A1 (en) 1983-08-05 1984-07-23 Railway ballast cleaning method and machine for performing it

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP84108696A Withdrawn EP0146681A1 (en) 1983-08-05 1984-07-23 Railway ballast cleaning method and machine for performing it

Country Status (6)

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EP (2) EP0136442A1 (en)
JP (2) JPS6059201A (en)
AU (2) AU3161084A (en)
DE (2) DE146681T1 (en)
IT (1) IT1168813B (en)
ZA (2) ZA845778B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19935679A1 (en) * 1999-07-29 2001-03-08 Wiebe Hermann Grundstueck Traveling railway track machinery to clean ballast has cleaning devices with suction units above ballast conveyors to remove dirt and deposit it on a removal conveyor
EP0940502A3 (en) * 1998-03-03 2003-01-29 Hermann Wiebe Grundstücks- und Maschinenanlagen KG Mobile track maintenance machine
WO2009033604A1 (en) * 2007-09-07 2009-03-19 Vma Maschinen- & Anlagenbau Gmbh Eccentric screen element for disk screens
WO2012175167A1 (en) * 2011-06-20 2012-12-27 Franz Plasser Bahnbaumaschinen-Industriegesellschaft Mbh Machine for cleaning ballast of a track

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1248221B (en) * 1991-03-29 1995-01-05 2C 2M Di Morara Claudio E Menz RAILWAY MASSIVE SCREENING MACHINE.
RU2086723C1 (en) * 1993-06-16 1997-08-10 Франц Плассер Банбаумашинен-Индустригезельшафт Мбх Method of and device for reconditioning of railway track ballast layer
AT511472B1 (en) * 2011-09-29 2012-12-15 Plasser Bahnbaumasch Franz METHOD FOR RESTORING A SCHOTTERBETTUNG A JOINT
AT521335B1 (en) * 2018-02-22 2020-10-15 Palashev Angel Removable cover edge with handle for furniture panels with faceted front edges

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DE2012654B2 (en) * 1970-03-17 1971-10-07 Wittmann, Paul, 8858 Neuburg FLUORESCENT ILLUMINATOR SORTING MACHINE
US3870627A (en) * 1972-11-27 1975-03-11 John W Herkes Mechanical screening device for machine-harvested sugar cane
US3985233A (en) * 1975-12-11 1976-10-12 Weyerhaeuser Company Vibratory seedling cleaner
EP0001172A1 (en) * 1977-09-05 1979-03-21 Peabody Holmes Limited Apparatus and method for classifying heterogeneous solids
DE2364463B2 (en) * 1973-12-24 1979-11-29 Maschinenfabrik Karl Brieden & Co, 4630 Bochum Chain conveyor with a screening device
WO1980002392A1 (en) * 1979-05-10 1980-11-13 Spm Group Inc Apparatus for separation of material of heterogeneous character
FR2480068A1 (en) * 1980-04-14 1981-10-16 Inst Mekh Selskogo Rotary separator for agricultural harvester - has sectional structure, with each section having discs mounted on shafts rotating at different speeds
EP0059500A1 (en) * 1981-03-02 1982-09-08 Matisa Materiel Industriel S.A. Ballast cleaning machine running on tracks

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AT139890B (en) * 1930-07-28 1934-12-27 Maurice Henri Lemaire Device for continuous cleaning of the ballast of railway lines.
FR982130A (en) * 1949-01-12 1951-06-04 Construction D Outil Soc Et Mechanical stripper for work on railway tracks
FR1029167A (en) * 1950-12-06 1953-06-01 Comabi Const Mat Batiment Lightweight equipment for cleaning and placing railroad ballast
DE871767C (en) * 1951-12-23 1953-03-26 Georges Boulard Machine for lifting and processing the bedding material under railroad tracks
AT316617B (en) * 1969-12-18 1974-07-25 Plasser Bahnbaumasch Franz Mobile machine for picking up, cleaning and reinstalling ballast ballast from railway tracks
AT342103B (en) * 1974-11-15 1978-03-10 Plasser Bahnbaumasch Franz MACHINE FOR CLEANING AND WASHING THE BED BALL OF RAILWAY TRACKS

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Publication number Priority date Publication date Assignee Title
DE531681C (en) * 1930-05-20 1931-09-01 Gewerk Eisenhuette Westfalia Cleaning trolley for old track beds
DE2012654B2 (en) * 1970-03-17 1971-10-07 Wittmann, Paul, 8858 Neuburg FLUORESCENT ILLUMINATOR SORTING MACHINE
US3870627A (en) * 1972-11-27 1975-03-11 John W Herkes Mechanical screening device for machine-harvested sugar cane
DE2364463B2 (en) * 1973-12-24 1979-11-29 Maschinenfabrik Karl Brieden & Co, 4630 Bochum Chain conveyor with a screening device
US3985233A (en) * 1975-12-11 1976-10-12 Weyerhaeuser Company Vibratory seedling cleaner
EP0001172A1 (en) * 1977-09-05 1979-03-21 Peabody Holmes Limited Apparatus and method for classifying heterogeneous solids
WO1980002392A1 (en) * 1979-05-10 1980-11-13 Spm Group Inc Apparatus for separation of material of heterogeneous character
FR2480068A1 (en) * 1980-04-14 1981-10-16 Inst Mekh Selskogo Rotary separator for agricultural harvester - has sectional structure, with each section having discs mounted on shafts rotating at different speeds
EP0059500A1 (en) * 1981-03-02 1982-09-08 Matisa Materiel Industriel S.A. Ballast cleaning machine running on tracks

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0940502A3 (en) * 1998-03-03 2003-01-29 Hermann Wiebe Grundstücks- und Maschinenanlagen KG Mobile track maintenance machine
DE19935679A1 (en) * 1999-07-29 2001-03-08 Wiebe Hermann Grundstueck Traveling railway track machinery to clean ballast has cleaning devices with suction units above ballast conveyors to remove dirt and deposit it on a removal conveyor
WO2009033604A1 (en) * 2007-09-07 2009-03-19 Vma Maschinen- & Anlagenbau Gmbh Eccentric screen element for disk screens
WO2012175167A1 (en) * 2011-06-20 2012-12-27 Franz Plasser Bahnbaumaschinen-Industriegesellschaft Mbh Machine for cleaning ballast of a track
EA023548B1 (en) * 2011-06-20 2016-06-30 Франц Плассер Банбаумашинен-Индустригезельшафт Мбх Machine for cleaning ballast of a track

Also Published As

Publication number Publication date
DE146681T1 (en) 1985-09-26
ZA845778B (en) 1985-03-27
JPS6059201A (en) 1985-04-05
AU3160984A (en) 1985-02-07
JPS6059202A (en) 1985-04-05
AU3161084A (en) 1985-02-07
IT1168813B (en) 1987-05-20
EP0146681A1 (en) 1985-07-03
IT8367847A0 (en) 1983-08-05
ZA845864B (en) 1985-03-27
DE136442T1 (en) 1985-09-12

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