EP0593730B1 - Self-loadable and self-unloadable open truck - Google Patents
Self-loadable and self-unloadable open truck Download PDFInfo
- Publication number
- EP0593730B1 EP0593730B1 EP93910131A EP93910131A EP0593730B1 EP 0593730 B1 EP0593730 B1 EP 0593730B1 EP 93910131 A EP93910131 A EP 93910131A EP 93910131 A EP93910131 A EP 93910131A EP 0593730 B1 EP0593730 B1 EP 0593730B1
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- EP
- European Patent Office
- Prior art keywords
- conveyor
- truck according
- buckets
- chain
- endless chain
- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
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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
- the invention relates to a self-loading and self-unloading dump wagon equipped with a high-walled crate and a system for loading and unloading bulk materials comprising a general conveyor for transporting at least bulk materials from one front wall to the other of the body.
- This type of dump wagon is commonly used to transport bulk materials such as waste extracted from railway lining materials.
- This waste is evacuated from the railway after a screening operation and transported in dump cars to be deposited in landfill areas.
- a stripping operation a large amount of waste is taken from the track.
- the stripping machine is coupled to a convoy of dump cars, each dump car having a capacity of about 30 cubic meters. During a day of stripping the tracks, several convoys of dump cars loaded with waste are unloaded.
- the dump cars are self-loading.
- a belt conveyor system generally arranged in cascade is used, each gondola wagon having its own conveyor. The dump cars are thus loaded one after the other, starting with the leading dump car.
- the oblique conveyor is oriented transversely to ensure the unloading of materials on the ground, next to the track, it will not be able to meet the conditions of height (4 meters) and distance (6 meters) which are generally imposed for the discharge of materials by this conveyor. Indeed, it has a large width, equal to that of the wagon body; it is therefore heavy. On the other hand, it should be given a great length to reach the prescribed height at its discharge end, since its other end must be at the bottom of the boxes. A wagon fitted with such a conveyor would not comply with the limit load distribution condition 40% / 60% relating to the respective load of the two wheels on the same axle when this conveyor is oriented towards the side of the wagon.
- the object of the invention is to remedy these various drawbacks.
- the invention relates to a dump wagon of the kind defined at the start, in which, according to the invention, the general conveyor is arranged at an average level close to that of the upper edges of the body and the loading system. and unloading further comprises a handling device capable of reloading on the general conveyor the bulk materials deposited in the box.
- the general conveyor which ensures the transport of materials along a train of dump wagons to be loaded, is no longer located at the bottom of the wagon body, but in the upper part.
- this conveyor and with it the waste stream that it carries, is removed from the action of the mass of waste contained in the box that it overcomes, and it is easily accessible at all times for repair. possible.
- it may have a reduced width, therefore a light structure.
- this general conveyor comprises a directional unloading conveyor on the side, the latter can easily meet the conditions mentioned above. Indeed, because of its low weight and the situation in height of its starting point, and no longer at the bottom of the body, it can easily convey the materials higher and further.
- the handling device preferably comprises bodies for picking up bulk materials circulating in a plane transverse to the longitudinal direction of the box and of the general conveyor, the handling device being able to move further in translation between the walls front of the body.
- the endless chain is preferably a double chain framing the buckets and its guide means consist of a pair of parallel rails, carried by the frame, which guide the endless chain at least along its lower and ascending parts.
- these comprise, on the inside of the loop path of the endless chain, a movable wall formed by an articulated cover, while means are provided for controlling the position of this cover , who maintain it in the closed position in the lower and ascending parts of said loop path and allow its opening in the upper part of the latter, thus allowing the buckets to empty their contents when they overhang the general conveyor.
- the means for controlling the position of the bucket cover may be constituted by the guide rails of the endless chain, which for this purpose have a U-shaped section and face each other by their longitudinal openings, one of the wings of these rails being wide enough to marginally cover the cover, while it narrows at the top of the loop path so as to release the cover, allowing it to tip into the open position.
- the buckets offer, on the inside of the loop path of the endless chain, an open face, devoid of wall, which is closed, in the ascending part and a portion of the upper part of their path , by a strip running parallel to the bucket chain, at the same speed and in the same direction, the buckets applying by their open face against said strip, until they leave it in the upper part of their path, then pouring their contents onto the general conveyor.
- the buckets should be coupled to the endless chain via a single hinge pin located near their mouth, around which they can pivot, relative to the endless chain and in the mean plane of its path, of a small angle of deflection defined by means of limitation of tilting associated with each bucket.
- the path of the closure band of the buckets preferably continues over a portion of the upper part of the path of the bucket chain, this portion having a length such that the buckets pour their contents into the central zone of the conveyor.
- a fixed support plate can be provided, against which the obturating strip leans in the portion of its path where the buckets are applied to it.
- the general conveyor with which the wagon is equipped it advantageously comprises a first conveyor belt extending substantially horizontally between the front walls of the box, and a second conveyor belt mounted on an orientable and tilting boom, which can be oriented longitudinally to extend the first to a wagon adjacent to the convoy or transversely to one side of the track.
- the advantages provided by the invention essentially consist in that it makes it possible to produce wagons with automatic loading and unloading thanks to a handling device specific to each wagon, any wagon in a convoy which can be loaded and unloaded by direct access.
- the handling device adapts directly to a dump wagon without modifying its structure, while the general conveyor of each wagon can be replaced, if necessary, even when the wagon is loaded.
- the general conveyor that the general conveyor can include, it is possible to unload a wagon by bringing the materials it contains to a dumping point on the side of the track, located at a height and at a distance from the track suitable for meeting the standards applicable to railway networks.
- FIG. 1 represents a part of a convoy of dump wagons equipped with a loading and unloading system according to the invention.
- FIG. 2 represents, schematically and on a larger scale, the mobile lifting device of one of the dump wagons of FIG. 1.
- Figure 3 is a cross-sectional view, also on an enlarged scale, of a dump wagon fitted with equipment according to the invention according to a first embodiment.
- Figures 4 and 5 schematically show, in perspective, respectively a portion of the lower part and a portion of the upper part of the bucket chain of the mobile elevator.
- FIG. 6 represents, in the manner of FIG. 3, a second embodiment of a dump wagon equipment according to the invention.
- Figures 7 to 9 schematically show, respectively in perspective, in vertical section and in elevation, a portion of the lower part, a portion of the upper part and a portion of the ascending part of the bucket chain of the mobile elevator of Figure 6.
- FIG. 10 represents a section along line XX of the object of FIG. 9.
- Figure 11 is an enlarged schematic view of the portion of the bucket chain of Figure 6 located at the transition between the ascending part and the upper part.
- FIG. 1 a self-loading and self-unloading dump wagon, coupled to another identical dump wagon but visible only in part.
- These dump wagons comprise a plate 13 on which is fixed a box 1 having high walls, namely two front walls 2 and two side walls 3.
- This type of dump wagon is used for the transport of bulk materials, in particular during operations. stripping of railways.
- the dump car shown is equipped with a system for loading and unloading bulk materials according to the invention.
- This system comprises a general conveyor 4 which makes it possible to convey bulk materials, supplied by a stripping machine or by the general conveyor of another dump wagon harnessed to the right of the wagon in question, from the front wall 2 of the body located on the right in the figure towards the other front wall 2 of the body located on the left in the figure.
- the general conveyor 4 comprises a first conveyor 6 equipped with a band circulating horizontally between end rollers 16 and a second conveyor 7 with a band carried by an arrow 8.
- the arrow 8 can pivot at its end 10 on the platform 13 of the wagon, which allows it to be oriented at will to direct its other end on one side or the other of the railroad tracks or above the conveyor 6 of another wagon, as shown.
- a jack 11 articulated to the arrow 8 and to the plate 13 of the wagon also makes it possible to adjust the inclination of the latter.
- the end 10 of the boom further carries a hopper 12 into which the materials conveyed by the conveyor 6 belonging to the same wagon are discharged.
- a stand 14 fixed to the arrow 8 allows it to bear on the next wagon, for example on the energy group 15 carried by this wagon.
- the first conveyor 6 which is used for loading the box 1 is arranged substantially horizontally above the front walls 2 of the box and rests on the upper edges thereof by means of elements support not shown.
- the conveyor 6 is therefore located above the box and can be dismantled even when the box 1 is loaded with bulk materials.
- the materials conveyed by the conveyor 6 are guided on the strip 18 of the latter between two edges constituted by successive pivoting gates 9 whose approximation in V makes it possible to direct the flow of materials in the box at the desired locations.
- the loading and unloading system also includes an elevating handling device 5 capable of recharging the bulk materials deposited in the box on the belt 18 of the conveyor 6 which then routes them to the oblique conveyor 7.
- the handling device 5 can be moved in the longitudinal direction of the body from one front wall to the other thereof, so that it allows, in cooperation with the general conveyor 4, to completely unload the body 1 of the gondola wagon.
- the handling device 5 comprises a frame 51 extending transversely with respect to the longitudinal axis of the body 1 and having two ends 52 which rest on the upper edges of the walls lateral 3 of the body 1 by means of sets of rollers 80 which allow the movements in translation of the frame between the two front walls 2 of the body.
- This frame comprises a pair of upper arches 51a which pass over the first conveyor 6, and a pair of lower arches 51b which pass under the first conveyor 6.
- These pairs of arches support a pair of front members and rear 64 which extend transversely and descend vertically in the body 1.
- endless 54 with buckets 55 guided along a closed path extending in a transverse plane with respect to the longitudinal direction of the box 1 and surrounding the conveyor 6. It is a double chain, the buckets 55 being mounted in succession between its two parts, the guidance of which is provided by a pair of rails 53 carried by the frame 51 of the handling device 5, each having the shape of a frame.
- the two guide rails 53 surround the conveyor 6 and plunge inside the box 1 along the walls side 3 and the bottom 13 of the body.
- the guide rails have a U-shaped section and are arranged face to face, their longitudinal openings being opposite ( Figures 4 and 5).
- Each of the two parts of the double chain 54 circulates in a respective one of these guide rails, between their wings 53a, 53b, under the action of a geared motor 58 mounted on the frame 51 and attacking one at less than two pairs of sprockets 59a, 59b on which the endless double chain 54 meshes.
- the direction of movement of the bucket chain is identified by the arrows C.
- These sprockets are arranged in the upper part of the frames formed by the rails 53 so as not to be in contact with the materials deposited in the body 1.
- the circuit of the chain 54 is such that the buckets 55 fill in the bottom of the box and empty once they have arrived above the belt 18 of the conveyor 6.
- each bucket 55 is provided, on its face turned downwards when it is in the upper part of its path, with an opening wall 60 which can pivot around a hinge pin 61.
- This wall is kept closed on the major part of the chain circuit 54 by the inner wings 53b of the rails 53, to which a larger width has been given for this purpose than with the outer wings 53a.
- the inner wings 53b are narrowed to provide notches 90 allowing the opening of the wall 60 of each bucket at this location, as can be seen in FIGS. 3 and 5.
- Each cup 55 has for its filling a mouth 62 in the shape of a trapezoid.
- the side walls of the bucket form with the fixed wall which connects them facing the opening wall 60 an angle of attack 63 playing the role of a knife which allows, whatever the direction of movement of the frame 51, to disaggregate the materials in bulk by swallowing them at the base of the embankment formed by the natural accumulation of materials spilled into the body when loading the wagon ( Figure 2).
- the endless chain 54 fitted with its buckets 55 can raise bulk materials from the bottom of the box onto the belt 18 of the conveyor 6 independently of the direction of progression of the frame 51 along the box.
- the conveyor 6 carries along its longitudinal edges a pair of flanges 41 dipping inside the body and arranged on either side of the chain 57, of so as to protect it from the materials falling into the box 1 during loading operations.
- the conveyor 6 is provided, along its longitudinal edges, deflectors 42 which direct the materials conveyed by the conveyor 6 towards the lateral edges 3 of the box.
- Another set of deflectors 43 can be provided on the handling device 5 to channel the materials discharged by each bucket 55 onto the belt 18 of the conveyor 6, one of these deflectors having the role of helping to close the articulated wall 60 of the bucket.
- handling device 5 must be replaced, in the event of a breakdown for example, it suffices for this to slide the conveyor 6 in one direction or the other according to the arrow R or A, using a crane, to release the frame 51. This can be done even when the wagon is loaded with loose materials.
- FIG. 6 Another embodiment of the handling device 5 is shown in Figure 6. Its general structure is similar to that of the device described above.
- the collection and lifting of the materials in the box 1 of the wagon is always done using a double chain 54 with buckets circulating around the conveyor 6 and plunging to the bottom 13 of the box.
- the buckets now designated by the reference 155, are, for emptying, devoid of the opening wall 60 that comprise the buckets 55 of the previous example. They are in fact open on the corresponding face, as can be seen by comparing FIGS. 4 and 7.
- a sealing strip 70 is provided there, which moves parallel to the chain 54, in the same direction and with the same speed (FIG.
- this strip being disposed at a distance from the chain 54 such that the buckets are applied to it by the whole of their open face, which thus closed, the strip being slightly wider than the open face of the cups ( Figure 10).
- a sole 71 is provided, which stands parallel to the path of the chain and along which the strip 70 moves by sliding. This silk 71 also constitutes a sealing element having the role of preventing the materials from entering behind the strip 70.
- the buckets 155 on the obturating strip 70 are connected to the chain 54 by articulation along a single axis 72 located near their mouth 62, around which they can pivot relative to the chain, on an angle limited by a pair of rods 73 articulated to the double chain 54, each being engaged by a buttonhole 74 on a lug 75 secured to the corresponding side wall of each bucket.
- the arrangement is such that the weight P of the cup 155 and its contents, applied at its center of gravity G, creates a torque which tends to keep the cup applied on the sealing strip, so that it moves in a can with it, its open face remaining perfectly closed over the entire ascending part of the endless chain 54.
- the strip 70 extends a little beyond the top of this part, still supported by the sole 71 oriented here substantially horizontally, so as to maintain the closure of the open face of the buckets 155 until they arrive in good position above the conveyor 6 to pour their contents there. If, in this portion of the upper part of the path of the bucket chain, these were not perfectly closed by the strip 70, the materials which could escape therefrom would be collected by the latter and would likewise be found dumped into the conveyor at the point where the strip 70 ends its race by passing over a deflection roller 76.
- This roller 76 is also the drive roller which circulates the strip 70.
- On its shaft 77 (FIG. 11) is in fact wedged a pinion 78 coupled in rotation by a chain 79 to a pinion 81 wedged on the shaft 82 of the pair of sprockets 59a for driving the double chain 54, these sprockets being situated at the transition between the ascending and upper parts of the path of the latter.
- On this same shaft actuated in rotation by the geared motor 58, turns a drum 83 on which the strip 70 is supported (FIG. 8).
- the ratio of the diameters of the pinions 78 and 81 is calculated, as a function of the diameters of the pinions 59a and of the drum 76, so that the sealing strip moves at exactly the same linear speed as the bucket chain.
- the strip 70 passes over a deflection roller 84 which turns idly around an axis distinct from that of the pair of neighboring sprockets 59c which ensures the deflection at this point of the chain. with buckets.
- a fourth pair of idler sprockets 59d is likewise provided at the start of the lower part of the path of the bucket chain. It will be noted that, in this embodiment, the rails 54 for guiding the latter do not cover its entire path, but are limited to the lower and ascending parts thereof, as shown in FIG. 6.
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Abstract
Description
L'invention se rapporte à un wagon tombereau auto-chargeable et auto-déchargeable équipé d'une caisse à parois hautes et d'un système de chargement et de déchargement de matériaux en vrac comprenant un convoyeur général pour acheminer des matériaux en vrac au moins d'une paroi frontale à l'autre de la caisse.The invention relates to a self-loading and self-unloading dump wagon equipped with a high-walled crate and a system for loading and unloading bulk materials comprising a general conveyor for transporting at least bulk materials from one front wall to the other of the body.
Ce type de wagon tombereau est couramment utilisé pour transporter des matériaux en vrac tels que les déchets extraits de matériaux de garnissage de voies ferrées. Ces déchets sont évacués de la voie ferrée après une opération de criblage et transportés dans des wagons tombereaux pour être déposés dans des zones de décharge. Dans une opération de dégarnissage de voie ferrée, une grande quantité de déchets est prélevée de la voie ferrée. Ainsi, sur 1 500 mètres de voie ferrée, il est courant de prélever 800 à 1 000 mètres cubes de déchets. Généralement, l'engin de dégarnissage est attelé à un convoi de wagons tombereaux, chaque wagon tombereau ayant une contenance d'environ 30 mètres cubes. Au cours d'une journée de dégarnissage de voie ferrée, plusieurs convois de wagons tombereaux chargés de déchets sont déchargés.This type of dump wagon is commonly used to transport bulk materials such as waste extracted from railway lining materials. This waste is evacuated from the railway after a screening operation and transported in dump cars to be deposited in landfill areas. In a stripping operation, a large amount of waste is taken from the track. Thus, on 1,500 meters of railroad tracks, it is common to collect 800 to 1,000 cubic meters of waste. Generally, the stripping machine is coupled to a convoy of dump cars, each dump car having a capacity of about 30 cubic meters. During a day of stripping the tracks, several convoys of dump cars loaded with waste are unloaded.
Pour augmenter la rentabilité d'une telle opération, il est nécessaire que les wagons tombereaux soient auto-chargeables. Pour acheminer les déchets prélevés par l'engin de dégarnissage vers les wagons tombereaux d'un convoi, on utilise généralement un système de convoyeurs à bande disposés en cascade, chaque wagon tombereau ayant son propre convoyeur. Les wagons tombereaux sont ainsi chargés l'un après l'autre en commençant par le wagon tombereau de tête.To increase the profitability of such an operation, it is necessary that the dump cars are self-loading. To convey the waste removed by the stripping machine to the gondola wagons of a convoy, a belt conveyor system generally arranged in cascade is used, each gondola wagon having its own conveyor. The dump cars are thus loaded one after the other, starting with the leading dump car.
Le déchargement des wagons tombereaux pose plus de problèmes. On connaît déjà un système de chargement et déchargement pour wagon tombereau comprenant un convoyeur général à bande qui constitue le fond de la caisse du wagon tombereau (wagon à fond mobile) et débouche de la partie inférieure d'une paroi frontale de la caisse pour servir le wagon tombereau suivant à l'aide d'un convoyeur oblique. Le chargement en déchets des wagons tombereaux s'effectue en commençant par le wagon de tête. Les déchets acheminés par la cascade de convoyeurs s'accumulent au fur et à mesure dans les wagons tombereaux, et leur déchargement s'effectue avec le même convoyeur en commençant par le wagon de queue. Ce système de chargement et déchargement pour wagon tombereau présente les inconvénients suivants :
- le mode de convoyage des matériaux à éliminer conduit à véhiculer des charges extrêmement importantes, ce qui nécessite des mécanismes lourds et de puissance élevée;
- malgré toutes les précautions prises pour protéger les mécanismes du convoyeur, ceux-ci, du fait qu'ils sont immergés au sein des matériaux, sont néanmoins exposés en permanence à l'action destructrice des sables et graviers;
- du fait que les matériaux sont contenus entre deux parois fixes de la caisse des wagons, le convoyeur est susceptible de n'entraîner qu'une partie des matériaux, l'autre partie demeurant en place par effet de voûte;
- le remplacement d'une bande transporteuse avariée dans le fond d'un wagon tombereau ne peut être envisagé qu'une fois celui-ci vidé de sa charge à l'aide d'autres moyens, ce qui nécessite une interruption du chargement des wagons suivants et donc de la progression du travail.
- the mode of conveying the materials to be eliminated leads to transporting extremely large loads, which requires heavy mechanisms and high power;
- despite all the precautions taken to protect the conveyor mechanisms, these, due to the fact that they are immersed in the materials, are nevertheless permanently exposed to the destructive action of sand and gravel;
- due to the fact that the materials are contained between two fixed walls of the wagon body, the conveyor is likely to entrain only part of the materials, the other part remaining in place by effect of arch;
- the replacement of a damaged conveyor belt in the bottom of a gondola wagon can only be envisaged once it has been discharged using other means, which necessitates an interruption in the loading of the following wagons and therefore the progression of work.
En outre, si le convoyeur oblique est orienté transversalement pour assurer le déchargement des matériaux sur le sol, à côté de la voie, il ne pourra remplir les conditions de hauteur (4 mètres) et de distance (6 mètres) qui sont généralement imposées pour le déversement des matériaux par ce convoyeur. En effet, celui-ci présente une largeur importante, égale à celle de la caisse des wagons; il est donc lourd. D'autre part, on devrait lui donner une grande longueur pour atteindre la hauteur prescrite à son extrémité de décharge, car son autre extrémité doit se trouver au niveau du fond des caisses. Un wagon équipé d'un tel convoyeur ne respecterait pas la condition limite de répartition des charges 40%/60% relatives à la charge respective des deux roues d'un même essieu lorsque ce convoyeur serait orienté vers le côté du wagon.In addition, if the oblique conveyor is oriented transversely to ensure the unloading of materials on the ground, next to the track, it will not be able to meet the conditions of height (4 meters) and distance (6 meters) which are generally imposed for the discharge of materials by this conveyor. Indeed, it has a large width, equal to that of the wagon body; it is therefore heavy. On the other hand, it should be given a great length to reach the prescribed height at its discharge end, since its other end must be at the bottom of the boxes. A wagon fitted with such a conveyor would not comply with the limit load distribution condition 40% / 60% relating to the respective load of the two wheels on the same axle when this conveyor is oriented towards the side of the wagon.
Le but de l'invention est de remédier à ces différents inconvénients.The object of the invention is to remedy these various drawbacks.
A cet effet, l'invention a pour objet un wagon tombereau du genre défini au début, dans lequel, selon l'invention, le convoyeur général est disposé à un niveau moyen voisin de celui des bords supérieurs de la caisse et le système de chargement et de déchargement comprend en outre un appareil de manutention apte à recharger sur le convoyeur général les matériaux en vrac déposés dans la caisse.To this end, the invention relates to a dump wagon of the kind defined at the start, in which, according to the invention, the general conveyor is arranged at an average level close to that of the upper edges of the body and the loading system. and unloading further comprises a handling device capable of reloading on the general conveyor the bulk materials deposited in the box.
Ainsi, le convoyeur général, qui assure le transport des matériaux le long d'un train de wagons tombereaux à charger, est situé non plus au bas de la caisse des wagons, mais en partie haute. De ce fait, ce convoyeur, et avec lui le flux de déchets qu'il transporte, est soustrait à l'action de la masse des déchets contenus dans la caisse qu'il surmonte, et il est facilement accessible en tout temps pour une réparation éventuelle. En outre, il peut avoir une largeur réduite, donc une structure légère. Lorsque ce convoyeur général comprend un convoyeur orientable de déchargement sur le côté, ce dernier peut aisément répondre aux conditions précédemment mentionnées. En effet, du fait de son faible poids et de la situation en hauteur de son point de départ, et non plus au niveau du fond de caisse, il peut aisément acheminer les matériaux plus haut et plus loin.Thus, the general conveyor, which ensures the transport of materials along a train of dump wagons to be loaded, is no longer located at the bottom of the wagon body, but in the upper part. As a result, this conveyor, and with it the waste stream that it carries, is removed from the action of the mass of waste contained in the box that it overcomes, and it is easily accessible at all times for repair. possible. In addition, it may have a reduced width, therefore a light structure. When this general conveyor comprises a directional unloading conveyor on the side, the latter can easily meet the conditions mentioned above. Indeed, because of its low weight and the situation in height of its starting point, and no longer at the bottom of the body, it can easily convey the materials higher and further.
L'appareil de manutention comprend de préférence des organes de ramassage de matériaux en vrac circulant dans un plan transversal par rapport à la direction longitudinale de la caisse et du convoyeur général, l'appareil de manutention pouvant en outre se déplacer par translation entre les parois frontales de la caisse.The handling device preferably comprises bodies for picking up bulk materials circulating in a plane transverse to the longitudinal direction of the box and of the general conveyor, the handling device being able to move further in translation between the walls front of the body.
Dans une forme de réalisation avantageuse, l'appareil de manutention comprend :
- un bâti mobile reposant par ses extrémités sur les bords supérieurs des parois latérales de la caisse,
- une chaîne sans fin à godets circulant, grâce à des moyens d'entraînement, suivant un trajet en boucle qui, défini par des moyens de guidage liés au bâti mobile, entoure le convoyeur général et plonge à l'intérieur de la caisse en longeant les parois latérales et le fond de celle-ci, et
- des moyens pour faire se déplacer le bâti mobile entre les parois frontales de la caisse.
- a movable frame resting at its ends on the upper edges of the side walls of the box,
- an endless chain of buckets circulating, thanks to drive means, following a loop path which, defined by guide means linked to the movable frame, surrounds the general conveyor and plunges inside the box along the side walls and the bottom of it, and
- means for moving the movable frame between the front walls of the box.
La chaîne sans fin est de préférence une double chaîne encadrant les godets et ses moyens de guidage sont constitués par une paire de rails parallèles, portés par le bâti, qui guident la chaîne sans fin au moins le long de ses parties inférieures et ascendantes.The endless chain is preferably a double chain framing the buckets and its guide means consist of a pair of parallel rails, carried by the frame, which guide the endless chain at least along its lower and ascending parts.
Dans une première forme de réalisation des godets, ceux-ci comportent, du côté intérieur du trajet en boucle de la chaîne sans fin, une paroi mobile formée par un couvercle articulé, tandis que sont prévus des moyens de commande de la position de ce couvercle, qui le maintiennent en position fermée dans les parties inférieure et ascendante dudit trajet en boucle et autorisent son ouverture dans la partie supérieure de ce dernier, permettant ainsi aux godets de se vider de leur contenu lorsqu'ils surplombent le convoyeur général. Les moyens de commande de la position du couvercle des godets peuvent être constitués par les rails de guidage de la chaîne sans fin, lesquels présentent à cet effet une section en U et se font face par leurs ouvertures longitudinales, l'une des ailes de ces rails étant suffisamment large pour recouvrir marginalement le couvercle, tandis qu'elle se rétrécit dans la partie supérieure du trajet en boucle de façon à libérer le couvercle, l'autorisant à basculer en position d'ouverture.In a first embodiment of the buckets, these comprise, on the inside of the loop path of the endless chain, a movable wall formed by an articulated cover, while means are provided for controlling the position of this cover , who maintain it in the closed position in the lower and ascending parts of said loop path and allow its opening in the upper part of the latter, thus allowing the buckets to empty their contents when they overhang the general conveyor. The means for controlling the position of the bucket cover may be constituted by the guide rails of the endless chain, which for this purpose have a U-shaped section and face each other by their longitudinal openings, one of the wings of these rails being wide enough to marginally cover the cover, while it narrows at the top of the loop path so as to release the cover, allowing it to tip into the open position.
Dans une seconde forme de réalisation, les godets offrent, du côté intérieur du trajet en boucle de la chaîne sans fin, une face ouverte, dépourvue de paroi, laquelle est obturée, dans la partie ascendante et une portion de la partie supérieure de leur trajet, par une bande circulant parallèlement à la chaîne à godets, à la même vitesse et dans le même sens, les godets s'appliquant par leur face ouverte contre ladite bande, jusqu'à ce qu'ils la quittent dans la partie supérieure de leur trajet, déversant alors leur contenu sur le convoyeur général. Dans ce cas, il convient que les godets soient attelés à la chaîne sans fin par l'intermédiaire d'un unique axe d'articulation situé près de leur embouchure, autour duquel ils peuvent pivoter, par rapport à la chaîne sans fin et dans le plan moyen de son trajet, d'un petit angle de débattement défini par des moyens de limitation de basculement associé à chaque godet. Par ailleurs, le trajet de la bande d'obturation des godets se poursuit de préférence sur une portion de la partie supérieure du trajet de la chaîne à godets, cette portion ayant une longueur telle que les godets déversent leur contenu dans la zone centrale du convoyeur général. Afin que cette bande présente aux godets une surface ferme et bien définie, une plaque de soutien fixe peut être prévue, contre laquelle la bande obturatrice s'adosse dans la portion de son trajet où les godets viennent s'appliquer sur elle.In a second embodiment, the buckets offer, on the inside of the loop path of the endless chain, an open face, devoid of wall, which is closed, in the ascending part and a portion of the upper part of their path , by a strip running parallel to the bucket chain, at the same speed and in the same direction, the buckets applying by their open face against said strip, until they leave it in the upper part of their path, then pouring their contents onto the general conveyor. In this case, the buckets should be coupled to the endless chain via a single hinge pin located near their mouth, around which they can pivot, relative to the endless chain and in the mean plane of its path, of a small angle of deflection defined by means of limitation of tilting associated with each bucket. Furthermore, the path of the closure band of the buckets preferably continues over a portion of the upper part of the path of the bucket chain, this portion having a length such that the buckets pour their contents into the central zone of the conveyor. general. In order for this strip to present a firm and well-defined surface to the buckets, a fixed support plate can be provided, against which the obturating strip leans in the portion of its path where the buckets are applied to it.
Quant au convoyeur général dont est équipé le wagon, il comprend avantageusement un premier convoyeur à bande s'étendant sensiblement horizontalement entre les parois frontales de la caisse, et un second convoyeur à bande monté sur une flèche orientable et pouvant s'incliner, lequel peut être orienté longitudinalement pour prolonger le premier vers un wagon voisin du convoi ou transversalement vers un côté de la voie.As for the general conveyor with which the wagon is equipped, it advantageously comprises a first conveyor belt extending substantially horizontally between the front walls of the box, and a second conveyor belt mounted on an orientable and tilting boom, which can be oriented longitudinally to extend the first to a wagon adjacent to the convoy or transversely to one side of the track.
Les avantages procurés par l'invention consistent essentiellement en ceci qu'elle permet de réaliser des wagons à chargement et déchargement automatiques grâce à un dispositif de manutention propre à chaque wagon, un wagon quelconque dans un convoi pouvant être chargé et déchargé par accès direct. Le dispositif de manutention s'adapte directement sur un wagon tombereau sans modification de la structure de celui-ci, tandis que le convoyeur général de chaque wagon peut être, en cas de besoin, remplacé même lorsque le wagon est chargé. A cela s'ajoute que, grâce au second convoyeur que le convoyeur général peut comporter, il est possible de décharger un wagon en amenant les matériaux qu'il contient à un point de déversement sur le côté de la voie , situé à une hauteur et à une distance de la voie propres à satisfaire les normes applicables aux réseaux ferroviaires.The advantages provided by the invention essentially consist in that it makes it possible to produce wagons with automatic loading and unloading thanks to a handling device specific to each wagon, any wagon in a convoy which can be loaded and unloaded by direct access. The handling device adapts directly to a dump wagon without modifying its structure, while the general conveyor of each wagon can be replaced, if necessary, even when the wagon is loaded. To this is added that, thanks to the second conveyor that the general conveyor can include, it is possible to unload a wagon by bringing the materials it contains to a dumping point on the side of the track, located at a height and at a distance from the track suitable for meeting the standards applicable to railway networks.
D'autres particularités et avantages de l'invention ressortiront de la description qui va suivre, en regard des dessins annexés, d'exemples de réalisation non limitatifs.Other features and advantages of the invention will emerge from the description which follows, with reference to the appended drawings, of nonlimiting exemplary embodiments.
La figure 1 représente une partie d'un convoi de wagons tombereaux équipés d'un système de chargement et de déchargement selon l'invention.FIG. 1 represents a part of a convoy of dump wagons equipped with a loading and unloading system according to the invention.
La figure 2 représente, schématiquement et à plus grande échelle, le dispositif élévateur mobile de l'un des wagons tombereaux de la figure 1.FIG. 2 represents, schematically and on a larger scale, the mobile lifting device of one of the dump wagons of FIG. 1.
La figure 3 est une vue en coupe transversale, à échelle également agrandie, d'un wagon tombereau doté d'un équipement selon l'invention suivant une première forme de réalisation.Figure 3 is a cross-sectional view, also on an enlarged scale, of a dump wagon fitted with equipment according to the invention according to a first embodiment.
Les figures 4 et 5 représentent schématiquement, en perspective, respctivement une portion de la partie inférieure et une portion de la partie supérieure de la chaîne à godets de l'élévateur mobile.Figures 4 and 5 schematically show, in perspective, respectively a portion of the lower part and a portion of the upper part of the bucket chain of the mobile elevator.
La figure 6 représente, à la manière de la figure 3, une deuxième forme de réalisation d'un équipement de wagon tombereau selon l'invention.FIG. 6 represents, in the manner of FIG. 3, a second embodiment of a dump wagon equipment according to the invention.
Les figures 7 à 9 représentent schématiquement, respectivement en perspective, en coupe verticale et en élévation, une portion de la partie inférieure, une portion de la partie supérieure et une portion de la partie ascendante de la chaîne à godets de l'élévateur mobile de la figure 6.Figures 7 to 9 schematically show, respectively in perspective, in vertical section and in elevation, a portion of the lower part, a portion of the upper part and a portion of the ascending part of the bucket chain of the mobile elevator of Figure 6.
Le figure 10 représente une coupe selon la ligne X-X de l'objet de la figure 9.FIG. 10 represents a section along line XX of the object of FIG. 9.
La figure 11 est une vue schématique agrandie de la portion de la chaîne à godets de la figure 6 située à la transition entre la partie ascendante et la partie supérieure.Figure 11 is an enlarged schematic view of the portion of the bucket chain of Figure 6 located at the transition between the ascending part and the upper part.
On voit sur la figure 1 un wagon tombereau auto-chargeable et auto-déchargeable, attelé à un autre wagon tombereau identique mais visible seulement en partie. Ces wagons tombereaux comportent un plateau 13 sur lequel est fixée une caisse 1 ayant des parois hautes, savoir deux parois frontales 2 et deux parois latérales 3. Ce type de wagon tombereau est utilisé pour le transport de matériaux en vrac, notamment au cours des opérations de dégarnissage de voies ferrées.We see in Figure 1 a self-loading and self-unloading dump wagon, coupled to another identical dump wagon but visible only in part. These dump wagons comprise a
Le wagon tombereau représenté est équipé d'un système de chargement et de déchargement de matériaux en vrac conforme à l'invention. Ce système comprend un convoyeur général 4 qui permet d'acheminer des matériaux en vrac, fournis par un engin de dégarnissage ou par le convoyeur général d'un autre wagon tombereau attelé à la droite du wagon en question, de la paroi frontale 2 de la caisse située à droite sur la figure vers l'autre paroi frontale 2 de la caisse située à gauche sur la figure.The dump car shown is equipped with a system for loading and unloading bulk materials according to the invention. This system comprises a
Le convoyeur général 4 comprend un premier convoyeur 6 équipé d'une bande circulant horizontalement entre des rouleaux extrêmes 16 et un second convoyeur 7 à bande porté par une flèche 8. La flèche 8 peut pivoter à son extrémité 10 sur le plateau 13 du wagon, ce qui permet de l'orienter à volonté pour diriger son autre extrémité d'un côté ou de l'autre de la voie ferrée ou bien au-dessus du convoyeur 6 d'un autre wagon, comme représenté. Un vérin 11 articulé à la flèche 8 et au plateau 13 du wagon permet en outre de régler l'inclinaison de celle-ci. L'extrémité 10 de la flèche porte en outre une trémie 12 dans laquelle se déversent les matériaux acheminés par le convoyeur 6 appartenant au même wagon. Une béquille 14 fixée à la flèche 8 permet à celle-ci de prendre appui sur le wagon suivant, par exemple sur le groupe énergétique 15 porté par ce wagon.The
Comme le montre la figure 1, le premier convoyeur 6 qui sert au chargement de la caisse 1 est disposé sensiblement horizontalement au-dessus des parois frontales 2 de la caisse et repose sur les bords supérieurs de celles-ci par l'intermédiaire d'éléments d'appui non représentés. Le convoyeur 6 se trouve donc au-dessus de la caisse et peut être démonté même lorsque la caisse 1 est chargée de matériaux en vrac. Les matériaux acheminés par le convoyeur 6 sont guidés sur la bande 18 de celui-ci entre deux bordures constituées par des portillons pivotants 9 successifs dont le rapprochement en V permet de diriger le flux de matériaux dans la caisse aux endroits voulus.As shown in Figure 1, the first conveyor 6 which is used for loading the
Le système de chargement et de déchargement comprend aussi un appareil de manutention élévateur 5 capable de recharger les matériaux en vrac déposés dans la caisse sur la bande 18 du convoyeur 6 qui les achemine alors vers le convoyeur oblique 7. L'appareil de manutention 5 peut être déplacé suivant la direction longitudinale de la caisse d'une paroi frontale à l'autre de celle-ci, de sorte qu'il permet, en coopération avec le convoyeur général 4, de décharger entièrement la caisse 1 du wagon tombereau.The loading and unloading system also includes an elevating
En se reportant maintenant à la figure 3, on voit que l'appareil de manutention 5 comprend un bâti 51 s'étendant transversalement par rapport à l'axe longitudinal de la caisse 1 et ayant deux extrémités 52 qui reposent sur les bords supérieurs des parois latérales 3 de la caisse 1 par l'intermédiaire de jeux de galets 80 qui permettent les déplacements en translation du bâti entre les deux parois frontales 2 de la caisse. Ce bâti comprend une paire d'arceaux supérieurs 51a qui passent par-dessus le premier convoyeur 6, et une paire d'arceaux inférieurs 51b qui passent par-dessous le premier convoyeur 6. Ces paires d'arceaux supportent une paire de membrures avant et arrière 64 qui s'étendent transversalement et descendent verticalement dans la caisse 1. Aux membrures 64 sont fixés (figure 2) un bouclier oblique 66 ainsi qu'un treuil 56 susceptible d'avaler dans un sens (flèche A) ou dans l'autre (flèche R) une chaîne 57 tendue entre les deux parois frontales 2 de la caisse 1. La commande du treuil permet de déplacer le bâti 51 entre ces deux parois.Referring now to FIG. 3, it can be seen that the
Pour décharger la caisse 1 des matériaux 65 qu'elle contient, ceux-ci sont ramassés dans la région du fond 13 de la caisse, remontés au-dessus du niveau du convoyeur 6 et déversés sur ce dernier à l'aide d'une chaîne sans fin 54 à godets 55 guidée suivant un trajet fermé s'étendant dans un plan transversal par rapport à la direction longitudinale de la caisse 1 et entourant le convoyeur 6. Il s'agit d'une double chaîne, les godets 55 étant montés en succession entre ses deux parties, dont le guidage est assuré par une paire de rails 53 portés par le bâti 51 de l'appareil de manutention 5, chacun ayant la forme d'un cadre. Les deux rails de guidage 53 entourent le convoyeur 6 et plongent à l'intérieur de la caisse 1 en longeant les parois latérales 3 et le fond 13 de la caisse. Les rails de guidage ont une section en U et sont disposés face à face, leurs ouvertures longitudinales se trouvant en regard (figures 4 et 5). Chacune des deux parties de la double chaîne 54 circule dans l'un respectif de ces rails de guidage, entre leurs ailes 53a, 53b, sous l'action d'un moto-réducteur 58 monté sur le bâti 51 et attaquant l'une au moins de deux paires de pignons 59a, 59b sur lesquels la double chaîne sans fin 54 s'engrène. Le sens de circulation de la chaîne à godets est repéré par les flèches C. Ces pignons sont disposés dans la partie haute des cadres formés par les rails 53 pour ne pas être en contact avec les matériaux déposés dans la caisse 1. Le circuit de la chaîne 54 est tel que les godets 55 se remplissent dans le fond de la caisse et se vident une fois arrivés au-dessus de la bande 18 du convoyeur 6. A cet effet, comme on peut le voir sur les figures 4 et 5, chaque godet 55 est doté, sur sa face tournée vers le bas lorsqu'il se trouve dans la partie supérieure de son trajet, d'une paroi ouvrante 60 qui peut pivoter autour d'un axe d'articulation 61. Cette paroi est maintenue fermée sur la majeure partie du circuit de la chaîne 54 par les ailes intérieures 53b des rails 53, auxquelles on a donné à cet effet une largeur plus grande qu'aux ailes extérieures 53a. Toutefois, dans la partie du circuit surplombant la bande 18 du convoyeur 6, les ailes intérieures 53b sont rétrécies pour offrir des échancrures 90 permettant l'ouverture de la paroi 60 de chaque godet à cet endroit, comme visible sur les figures 3 et 5.To unload the
Chaque godet 55 présente pour son remplissage une embouchure 62 en forme de trapèze. Les parois latérales du godet forment avec la paroi fixe qui les relie face à la paroi ouvrante 60 un angle d'attaque 63 jouant le rôle d'un couteau qui permet, quel que soit le sens de déplacement du bâti 51, de désagréger les matériaux en vrac en les avalant à la base du talus formé par l'accumulation naturelle des matériaux déversés dans la caisse lors du chargement du wagon (figure 2). Ainsi, la chaîne sans fin 54 équipée de ses godets 55 peut faire remonter des matériaux en vrac du fond de la caisse sur la bande 18 du convoyeur 6 indépendamment du sens de progression du bâti 51 le long de la caisse.Each
En se reportant de nouveau à la figure 3, on voit que le convoyeur 6 porte le long de ses bords longitudinaux une paire de flasques 41 plongeant à l'intérieur de la caisse et disposés de part et d'autre de la chaîne 57, de façon à protéger celle-ci des matériaux tombant dans la caisse 1 lors des opérations de chargement. De même, le convoyeur 6 est muni, le long de ses bords longitudinaux, de déflecteurs 42 qui dirigent les matériaux acheminés par le convoyeur 6 vers les bords latéraux 3 de la caisse. Un autre jeu de déflecteurs 43 peut être prévu sur l'appareil de manutention 5 pour canaliser les matériaux déversés par chaque godet 55 sur la bande 18 du convoyeur 6, l'un de ces déflecteurs ayant pour rôle d'aider à la fermeture de la paroi articulée 60 du godet.Referring again to FIG. 3, it can be seen that the conveyor 6 carries along its longitudinal edges a pair of
Si l'appareil de manutention 5 doit être remplacé, en cas de panne par exemple, il suffit pour cela de faire coulisser le convoyeur 6 dans un sens ou dans l'autre suivant la flèche R ou A, à l'aide d'une grue, pour libérer le bâti 51. Cette manoeuvre peut être faite même lorsque le wagon est chargé de matériaux en vrac.If the
Une autre forme de réalisation de l'appareil de manutention 5 est représentée à la figure 6. Sa structure générale est semblable à celle de l'appareil décrit précédemment. Le ramassage et le relevage des matériaux se trouvant dans la caisse 1 du wagon se fait toujours à l'aide d'une double chaîne 54 à godets circulant autour du convoyeur 6 et plongeant jusqu'au fond 13 de la caisse. Toutefois, les godets, désignés maintenant par la référence 155, sont, en vue de leur vidage, dépourvus de la paroi ouvrante 60 que comportent les godets 55 de l'exemple précédent. Ils sont en effet ouverts sur la face correspondante, comme on peut le voir en comparant les figures 4 et 7. Pour que les godets ne perdent pas leur contenu dans la partie ascendante de leur trajet, une bande obturatrice 70 y est prévue, qui se déplace parallèlement à la chaîne 54, dans le même sens et avec la même vitesse (figure 9), cette bande étant disposée à une distance de la chaîne 54 telle que les godets viennent s'y appliquer par la totalité de leur face ouverte, laquelle de trouve ainsi obturée, la bande étant légèrement plus large que la face ouverte des godets (figure 10). Afin de soutenir la bande 70 pour qu'elle ne se dérobe pas sous la poussée des godets 155, une sole 71 est prévue, qui se dresse parallèlement au trajet de la chaîne et le long de laquelle la bande 70 se déplace en glissant. Cette soie 71 constitue également un élément d'étanchéité ayant pour rôle d'empêcher les matériaux de s'introduire derrière la bande 70.Another embodiment of the
Afin de favoriser la bonne application des godets 155 sur la bande obturatrice 70, ceux-ci sont reliés à la chaîne 54 par articulation suivant un unique axe 72 situé à proximité de leur embouchure 62, autour duquel ils peuvent pivoter par rapport à la chaîne, sur un angle limité par une paire de biellettes 73 articulées à la double chaîne 54, chacune étant engagée par une boutonnière 74 sur un ergot 75 solidaire de la paroi latérale correspondante de chaque godet. Comme le montre la figure 9, la disposition est telle que le poids P du godet 155 et de son contenu, appliqué en son centre de gravité G, crée un couple qui tend à maintenir appliqué le godet sur la bande obturatrice, de sorte qu'il se déplace de conserve avec celle-ci, sa face ouverte restant parfaitement obturée sur toute la partie ascendante de la chaîne sans fin 54. La bande 70 s'étend un peu au delà du sommet de cette partie, toujours soutenue par la sole 71 orientée ici sensiblement horizontalement, de façon à maintenir l'obturation de la face ouverte des godets 155 jusqu'à ce qu'ils arrivent en bonne position au-dessus du convoyeur 6 pour y déverser leur contenu. Si, dans cette portion de la partie supérieure du trajet de la chaîne à godets, ceux-ci n'étaient pas parfaitement obturées par la bande 70, les matériaux qui pourraient s'en échapper seraient recueillis par celle-ci et se trouveraient de même déversés dans le convoyeur à l'endroit où la bande 70 termine sa course en passant sur un rouleau de renvoi 76.In order to promote the correct application of the
Ce rouleau 76 est aussi le rouleau d'entraînement qui met en circulation la bande 70. Sur son arbre 77 (figure 11) est en effet calé un pignon 78 couplé en rotation par une chaîne 79 à un pignon 81 calé sur l'arbre 82 de la paire de pignons 59a d'entraînement de la double chaîne 54, ces pignons étant situés à la transition entre les parties ascendante et supérieure du trajet de celle-ci. Sur ce même arbre, actionné en rotation par le moto-réducteur 58, tourne fou un tambour 83 sur lequel prend appui la bande 70 (figure 8). Le rapport des diamètres des pignons 78 et 81 est calculé, en fonction des diamètres des pignons 59a et du tambour 76, de façon que la bande obturatrice se déplace exactement à la même vitesse linéaire que la chaîne à godets. Au bas de la partie ascendante du trajet de cette dernière, la bande 70 passe sur un rouleau de renvoi 84 qui tourne fou autour d'un axe distinct de celui de la paire de pignons 59c voisine qui assure la déviation à cet endroit de la chaîne à godets. Une quatrième paire de pignons fous 59d est de même prévue au début de la partie inférieure du trajet de la chaîne à godets. On remarquera que, dans cette forme d'exécution, les rails 54 de guidage de cette dernière ne couvrent pas tout son trajet, mais se limitent aux parties inférieure et ascendante de celui-ci, comme le montre la figure 6.This
Claims (16)
- A self-loading and self-unloading dump truck comprising a body (1) with high walls (2, 3) and a system for loading and unloading bulk materials and comprising a general conveyor (4) for conveying the bulk materials at least from one front wall (2) to the other of the body,
characterised in that the general conveyor is disposed at a central level near that of the upper edges of the body (1), and the loading and unloading system also comprises a machine (5) for handling the bulk materials deposited in the body and re-loading them on to the general conveyor. - A truck according to claim 1, characterised in that the handling machine (5) comprises means (55, 155) for picking up bulk materials travelling in a transverse plane relative to the longitudinal direction of the body (1) and the general conveyor (4), the handling machine also being movable in translation between the front walls (2) of the body.
- A truck according to claim 2, characterised in that the handling machine (5) comprises:
a mobile frame (51), the ends (52) of which rest on the upper edges of the side walls (3) of the body (1),
an endless chain (54) with buckets (55, 155) driven by drive means along a loop path which is defined by guide means connected to the mobile frame (51) and surrounds the general conveyor (4) and descends into the interior of the body (1) along the side walls (3) and the bottom (13) thereof, and
means for moving the mobile frame (51) between the front walls (2) of the body. - A truck according to claim 3, characterised in that the endless chain (54) is a double chain surrounding the buckets (55, 155) and its guide means comprise a pair of parallel rails (53) carried by the frame (51) and guiding the endless chain at least along the bottom and rising parts thereof.
- A truck according to any of claims 1 to 4, characterised in that the buckets (55) on the inside of the loop path of the endless chain (54) comprise a movable wall (60) in the form of a pivoted lid, and means for controlling the position of the lid are provided and hold it in the closed position in the bottom and rising parts of the said loop path and open it in the upper part thereof, so that the buckets empty their contents when suspended over the general conveyor.
- A truck according to claims 4 and 5, characterised in that the means for controlling the position of the bucket lid (60) comprise rails (53) for guiding the endless chain (54) and having a U section with their longitudinal openings facing one another, one flange of the rails being sufficiently wide to cover the edge of the lid whereas it narrows in the upper part of the loop path so as to free the lid and enable it to tilt into the open position.
- A truck according to any of claims 1 to 4, characterised in that the buckets (155), on the inside of the loop path of the endless chain (54), have an open surface without a wall, and during the rising part and a portion of the upper part of their path, the open surface is covered by a belt (70) travelling parallel to the bucket chain at the same speed and in the same direction, the open surfaces of the buckets pressing against the belt until they leave it in the top part of their path and discharge their contents on to the general conveyor.
- A truck according to claim 7, characterised in that the buckets (155) are linked to the endless chain by a single pivot (72) situated near their mouth (62), around which they can pivot relatively to the endless chain and in the plane of its travel, by a small clearance angle defined by the tilt-limiting means associated with each bucket.
- A truck according to claim 7 or 8, characterised in that the path of the bucket-closing belt (72) continues over a portion of the upper part of the path of the bucket chain, said portion having a length such that the buckets discharge their contents into the central zone of the general conveyor.
- A truck according to any of claims 7 to 9, characterised in that the closing belt (70) backs against a fixed supporting plate (71) in the portion of its path where the buckets rest against it.
- A truck according to any of claims 3 to 10, characterised in that the means driving the endless chain (54) comprise a motor and reduction gear unit (58) acting upon at least one pinion (59a) carried by the frame (51), the endless chain engaging the pinions.
- A truck according to any of claims 3 to 11, characterised in that the means for moving the frame (51) comprise a winch (56) secured to the frame and adapted to pull a chain (57) in one or the other direction, the chain being tensioned between the front walls (2) of the body.
- A truck according to claim 12, characterised in that the general conveyor (4) bears a pair of plates (41) which extend into the interior of the body and are disposed on either side of the chain (57) tensioned between the two front walls (2) of the body.
- A truck according to any of claims 3 to 13, wherein the ends (52) of the frame (51) have rollers (80) bearing on the upper edges of the side walls (3) of the body.
- A truck according to any of claims 3 to 14, characterised in that each bucket (55, 155) has a trapezoidal filling mouth (62) having an angle of contact (63) suitable for breaking up the bulk materials irrespective of the direction of travel of the frame (51).
- A truck according to any of the preceding claims, characterised in that the general conveyor (4) comprises a first belt conveyor (6) extending substantially horizontally between the front walls (2) of the body, and a second belt conveyor (7) mounted on a jib (8) which is adjustable and can slope, the conveyor being longitudinally adjustable to prolong the first conveyor towards a neighbouring truck in the train, or transversely adjustable towards a side of the track.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FR9206065A FR2691420B1 (en) | 1992-05-19 | 1992-05-19 | SELF-LOADING AND UNLOADABLE TRUCK WAGON. |
FR9206065 | 1992-05-19 | ||
PCT/FR1993/000479 WO1993023276A1 (en) | 1992-05-19 | 1993-05-18 | Self-loadable and self-unloadable open truck |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0593730A1 EP0593730A1 (en) | 1994-04-27 |
EP0593730B1 true EP0593730B1 (en) | 1995-09-27 |
Family
ID=9429930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93910131A Expired - Lifetime EP0593730B1 (en) | 1992-05-19 | 1993-05-18 | Self-loadable and self-unloadable open truck |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0593730B1 (en) |
AT (1) | ATE128421T1 (en) |
AU (1) | AU5173393A (en) |
DE (1) | DE69300556T2 (en) |
FR (1) | FR2691420B1 (en) |
WO (1) | WO1993023276A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ279535B6 (en) * | 1993-05-07 | 1995-05-17 | Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. | Wagon for transportation and deposition of bulk material |
FR2762821B1 (en) | 1997-05-02 | 2001-02-09 | Ddl Sa | DEVICE FOR HANDLING BULK LOADS CONTAINED IN A WAGON |
ITMI20111485A1 (en) * | 2011-08-03 | 2013-02-04 | Sistemi Ferroviari S R L | CONTAINER, RAIL TRANSPORT WAGON USING THIS CONTAINER AND PROCEDURE FOR LOADING / UNLOADING INERT FROM A RAIL TRANSPORT CARRIAGE |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3167193A (en) * | 1962-05-14 | 1965-01-26 | Klosk Lawrence | Loading car with conveyor |
DE2403010A1 (en) * | 1974-01-23 | 1975-07-31 | Wieger Maschbau | Viscous material loading and unloading machine - has lengthwise conveyor with transverse conveyor below, sliding in lengthwise direction |
-
1992
- 1992-05-19 FR FR9206065A patent/FR2691420B1/en not_active Expired - Fee Related
-
1993
- 1993-05-18 AU AU51733/93A patent/AU5173393A/en not_active Abandoned
- 1993-05-18 AT AT93910131T patent/ATE128421T1/en not_active IP Right Cessation
- 1993-05-18 DE DE69300556T patent/DE69300556T2/en not_active Expired - Fee Related
- 1993-05-18 EP EP93910131A patent/EP0593730B1/en not_active Expired - Lifetime
- 1993-05-18 WO PCT/FR1993/000479 patent/WO1993023276A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
WO1993023276A1 (en) | 1993-11-25 |
FR2691420A1 (en) | 1993-11-26 |
AU5173393A (en) | 1993-12-13 |
EP0593730A1 (en) | 1994-04-27 |
DE69300556D1 (en) | 1995-11-02 |
FR2691420B1 (en) | 1995-06-16 |
ATE128421T1 (en) | 1995-10-15 |
DE69300556T2 (en) | 1996-05-15 |
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