EP0467001A1 - Train for laying new tracks and method for their laying using such a train - Google Patents

Abstract

The train for laying new tracks is composed of a transport wagon (1), of a wagon (3) for laying sleepers and rails, and of a wagon (5) for handling the rails. The laying wagon (3) and the handling wagon (5) are equipped with tracked bogies (4, 6) and are articulated between themselves and with the transport wagon (1). The said three wagons (1, 3, 5) are provided with upper runways (10, 11; 18, 19; 25) which are arranged in such a way as to bring the new rails (R) towards the head of the train, where the handling wagon (5) is situated. The wagons for laying (3) and for handling (5) are additionally equipped with lower runways (20, 29, 30) which are arranged in such a way as to bring the new rails (R) towards a rail-laying device (21) in order that they can be laid on the sleepers (T1) situated underneath the laying wagon (3). The handling wagon (5) is additionally equipped with installations (27) for lowering the rails on the upper runways onto the lower runways. <IMAGE>

Description

The invention relates to a train for laying new railways comprising a transport wagon, a device for laying sleepers and a device for laying rails, as well as a method for laying tracks. such a train.

The current laying trains, as described for example in patent application EP-A 0355 240 of the applicant, intended in particular for the renewal of sleepers and rails, are not designed to transport and handle the new rails on their wagons. Indeed, it is only the new sleepers which are transported on storage wagons coupled to the laying train and which are transported, by gantry cranes and carriers, from these storage wagons, through the train, to the place where they are laid by the device for laying the sleepers, while the new rails or the new bars already welded must be deposited beforehand on each side of the layout of the new track and left waiting. Once the new sleepers are installed on the ballast, the rails or bars are taken by rail clamps fitted with rollers, moved laterally and placed on the sleepers. All these operations are carried out while the train is advancing continuously.

When it comes to building a new track, the fact of having to deposit rails or long bars beforehand using tractors or other means of traction, requires considerable manpower and increases the duration of the job.

The present invention aims to eliminate the disadvantages of the current working system and to create a laying train capable of handling not only the new sleepers, but also the new rails, for example 36 m in length, which allows install sleepers and rails in a single continuous operation.

To achieve this object, the laying train according to the invention is characterized in that the sleeper laying and rail laying devices are installed on a laying wagon arranged between said transport wagon and a rail handling wagon, that the laying wagon and the handling wagon are fitted with tracked bogies and articulated with each other and with the transport wagon, that said three wagons are provided with upper tracks arranged to bring the new rails towards the head of the train, where there is the handling wagon, which the laying and handling wagons are furthermore equipped with lower raceways arranged to bring the new rails to the rail laying device to place them on the sleepers below the laying wagon, and that the handling wagon is further provided with facilities for lowering the rails from the upper raceways to the lower raceways.

The equipment of this laying train allows the sleepers and rails to be brought onto storage wagons and that the rails, stored on at least one wagon which is directly coupled to the transport wagon, are routed, one after the 'other, along the work wagons, therefore transport, laying and handling wagons, at the place of laying while the sleepers are laid below the train. These measures have the following advantages: higher efficiency thanks to continuous work, reduction of the labor required, limitation of the number of transports and rationalization of welding operations.

According to an advantageous embodiment of the invention, the train, provided with at least one gantry for the transfer of the sleepers and movable on storage wagons arranged behind the transport wagon, on it and on the wagon , is characterized in that the upper raceways located on the transport wagon and on the laying wagon comprise horizontal guide rollers and vertical guide rollers, partially motorized, arranged to center the two rails on the wagon transport in an area where the gantry must move freely, and to separate the two rails after this area on the laying wagon so as to allow the descent of the sleepers to be laid.

To reduce the length of the train when it travels to the site, it is advantageous for the handling wagon to be fitted with a movable beam slidably mounted in the longitudinal direction on the chassis of this wagon, between a transport position. retracted and a working position deployed forward, said beam being provided with the raceways and the facilities necessary to descend the rails from the upper raceways to the lower raceways.

Other advantageous embodiments are described in the dependent claims.

The invention also relates to a method for laying new railways defined by the characterizing clause of claim 9, and preferred execution steps are defined by claim 10.

• Les figures 1 et 2 montrent, d'une manière schématique, le train de pose complet divisé en deux sections, à savoir, sur la figure 1, le wagon de transport et une partie du wagon de pose et, sur la figure 2, l'autre partie du wagon de pose et le wagon de manutention.
• Les figures 3 et 4 montrent, d'une manière schématique, une vue de dessus du train, comme représenté sur les figures 1 et 3.
• Les figures 5 et 6 montrent, à une échelle agrandie, le wagon de pose et le wagon de manutention.
• La figure 7 est une vue agrandie, en coupe, selon la ligne VII-VII de la figure 1.
• La figure 8 est une vue schématique agrandie d'un dispositif de traction avec bras télescopique, monté sur le wagon de transport.
• La figure 9 est une vue agrandie, en coupe, selon la ligne IX-IX de la figure 4, avec les installations coulissantes en position levée.
• La figure 9a montre des détails de ces installations.
• La figure 10 représente la même vue que la figure 9, avec les installations coulissantes en position basse.
• La figure 11 est une vue agrandie de la station de traction montrée figure 5.
• La figure 12 est une vue suivant la flèche XII de la figure 11.
• Les figures 13 et 14 montrent schématiquement deux phases de pose des rails.

The invention will be described using an embodiment with reference to the accompanying drawings.

• Figures 1 and 2 schematically show the complete laying train divided into two sections, namely, in Figure 1, the transport wagon and part of the laying wagon and, in Figure 2, l other part of the laying wagon and the handling wagon.
• Figures 3 and 4 schematically show a top view of the train, as shown in Figures 1 and 3.
• Figures 5 and 6 show, on an enlarged scale, the laying wagon and the handling wagon.
• FIG. 7 is an enlarged view, in section, along the line VII-VII of FIG. 1.
• Figure 8 is an enlarged schematic view of a traction device with telescopic arm, mounted on the transport wagon.
• Figure 9 is an enlarged view, in section, along the line IX-IX of Figure 4, with the sliding installations in the raised position.
• Figure 9a shows details of these installations.
• FIG. 10 represents the same view as FIG. 9, with the sliding installations in the low position.
• FIG. 11 is an enlarged view of the traction station shown in FIG. 5.
• FIG. 12 is a view along arrow XII of FIG. 11.
• Figures 13 and 14 schematically show two phases of laying the rails.

According to FIGS. 1 to 4, the laying train comprises: a transport wagon 1 which rolls with its two bogies 2 on existing rails, or on rails already laid, a laying wagon 3 provided with a bogie with tracks 4 which rolls on the track ballast and the rear end of which rests by means of a joint 15 on the chassis of the transport wagon 1, and a rail handling wagon 5, also provided with a bogie with tracks 6 and hooked by a hinge 22 to the chassis of the laying wagon 3. This train moves in the direction indicated in the figures by the arrow F. The two tracked bogies 4 and 6 have wheels 4a, respectively 6a, which are retracted during the work and lowered if the train moves on the rails while the tracks are retracted. The three articulated wagons form a single unit which can be incorporated into the trains.

At the tail of the transport wagon 1 is coupled a storage wagon 7, provided with bogies 8 and on which the new R rails are stored, on several layers; in the case of 36 m rails, as in the example described, there are two storage wagons 7 for carrying these new rails. At the rear of the storage wagons 7 are coupled storage wagons for the new sleepers. All these wagons run on the R5 rails already installed.

The transport wagon 1 is equipped with a drive unit 9 which provides the energy for all the working elements, as well as the drive for the pulls. At the tail of this wagon are mounted traction devices 10, followed towards the front by guide rollers 11 adjustable in height. The traction devices 10 consist of rail clamps with telescopic arms making it possible to remove the rails from the storage wagons 7 and bring them to the motorized rollers provided with a clamping system for advancing the new rails from the storage wagon 7 on the guide rollers 11, towards the laying wagon 3. In the figures, the rails being advanced on the transport and laying wagons are designated as R1.

FIG. 8 schematically shows on an enlarged scale a traction device 10 consisting of rail clamps 31 mounted on a telescopic arm 31 controlled by a jack 31 b, and motorized rollers 34, 35 provided with a clamping system 36 comprising a jack. The whole assembly mentioned is installed on a traction head 33, itself mounted on a support 33c by means of a parallelogram composed of articulated arms 33a. The arms 33a are adjustable in height by a jack 33b. The support 33c is mounted on a platform 32 which can be moved in the horizontal plane.

On the transport wagon 1 as well as on the laying wagon 3 and on the storage wagons at the rear of the train, there are continuous tracks 14 for at least one self-propelled gantry 13 which carries the new sleepers T of a wagon for storing the sleepers in the laying wagon 3. Finally, on the transport wagon 1, there is also a cabin 12 placed outside the raceway 14 for the gantry cranes and, from this cabin, the traction devices are controlled. 10.

The laying wagon 3 is equipped with a conveyor 16 for the sleepers and a device for laying the sleepers 17 (FIG. 5), the latter being monitored from a cabin placed under the chassis. The conveyor 16 receives the sleepers T brought by the gantry 13, as indicated by the arrow F1 in FIG. 1. This gantry 13, which carries thirty sleepers per passage, is provided, as illustrated in FIG. 7, with a beam 13a which can be raised or lowered according to the double arrow and which is fitted with crossbars 13b. The conveyor 16 is used to store and route these sleepers to the sleeper laying device 17 which lowers the sleepers according to arrow F2 in Figure 1 to place them on the ballast. The installed crosspieces are designated by T1.

This laying wagon 3 is provided with horizontal guide rollers 18 and partially motorized vertical guide rollers 19 forming the upper raceway for the new rails. They are arranged so as to center the two rails R1 which arrive on the transport wagon 1 in an area where the gantry 13 must move freely and to separate the two rails R1 after this area on the laying wagon 3 so as to allow the descent of the sleepers to be laid.

In addition, this laying wagon 3 includes a lower raceway for the rails, consisting of motorized guide rollers 20 which are suspended below the chassis and rail clamps 21 (Figure 1) provided with rollers for laying the new rails. on the sleepers T1 which have just been laid. The rails being laid on the sleepers T1 are designated by R4 (Figures 1, 3 and 7).

The handling wagon 5 consists of a central chassis 5a and a movable beam 23 slidably mounted thereon in the longitudinal direction between a working position deployed forward (Figures 2, 4, 6) and a retracted transport position 23 ', as shown in phantom in Figure 4. On this central chassis 5a of the handling wagon 5 and on the beam 23 are installed guide rollers 25 partially motorized and forming the upper raceway for the rails which, in their position on the upper raceway are designated by R2. In addition, sliding installations 27 are provided, displaceable vertically according to the double arrow F3 in FIG. 5, for lowering the rails from the upper raceways to the lower raceways, comprising rollers 28 which belong in the high position to the tracks upper bearings and in the lower position to the lower raceways, as will be explained later in relation to FIGS. 9 and 10. Finally, on the central chassis 5a and on the beam 23 are mounted auxiliary rollers 29 (FIGS. 2 and 6) as well as motorized traction stations 30 (Figures 2 and 5) belonging to the lower raceways.

One of the traction stations 30 suspended from the central chassis 5a is shown in FIGS. 11 and 12. It comprises an upper roller 38 motorized and driven by a reduction motor 39, as well as lower rollers 40. The roller 38 is mounted by the 'intermediate of a horizontal telescopic rod 43 fixed to the central frame 5a, and a vertical telescopic rod 44, both movable in the direction of the double arrows. The lower rollers 40 are mounted on an arm 45 rocking in the direction of the curved arrow and articulated on a support 42 fixed to the central chassis 5a. A clamping system 41 working with a jack makes it possible to clamp the rail R3.

As shown in Figures 9 and 10, the guide rollers 25 are mounted on pivoting frames 24, which are articulated to the central frame 5a, around a horizontal axis 24a. The sliding installations 27 are movably fixed vertically by uprights 27a to the chassis 5a, respectively to the beam 23 and can be raised and lowered by towing cables 27c driven by winches 27d. These sliding installations 27 are provided at their lower ends with arms 27b carrying the rollers 28. In the raised position illustrated in FIG. 9, the new rails R2 which arrive are supported on the one hand by the rollers 25 of the pivoting frames 24 and on the other starts with the rollers 28. In this figure 9, the preceding rails located on the lower raceway are designated by R3. This lower raceway comprises the auxiliary rollers 29 which are mounted to the frame 5b provided below the central chassis 5a.

The guide rollers 25 forming the upper raceway and mounted on the beam 23 are linked to these by means of a double articulation 44 as shown in FIG. 9a, making it possible to lower the raceway in work (on the left 9a), and to lift (to the right of Figure 9a) to be able to retract the beam 23 in the running position upside down.

Before lowering the sliding installations 27, with the rails R2, in the low position, illustrated in FIG. 10, the rails R3 must first be moved back so that said lower raceway is free. Then, to allow the rails R2 to descend, the guide rollers 25 are retracted by means of the jacks 26 which cause the pivoting frames 24 to tilt about 90 about the axis 24a. After the descent, the rails R2 supported by the rollers 28 also rest on the auxiliary rollers 29 (FIG. 10). Then, they are taken by the traction stations 30 which make these rails move back into a position such that the rear end of the rails, now in position R3 according to FIGS. 5 and 6, are located opposite the front end of the rails R4 to be spliced to these. After the jointing, they are taken below the laying wagon 3 by the rail clamps 21 to be placed on the crosspieces T1.

• - des chemins de roulement supérieurs constitués par des dispositifs de tractions 10 et les rouleaux de guidage 11 sur le wagon de transport 1, les rouleaux de guidage horizontaux 18 et les rouleaux de guidage verticaux 19 sur le wagon de pose 3, au niveau desquels les rails sont désignés par R1, et enfin les rouleaux de guidage 25 sur le wagon de manutention 5, au niveau desquels les rails sont désignés par R2;
• - des chemins de roulement inférieurs constitués par les rouleaux de guidage 20 et les pinces à rouleaux 21 sous le wagon de pose 3, au niveau desquels les rails sont désignés par R4, les rouleaux auxiliaires 29 et les stations de traction 30 sur le wagon de manutention 5, au niveau desquels les rails sont désignés par R3;
• - et les rouleaux 28 sur les installations coulissantes 27 qui, selon leur position, font partie soit des chemins de roulement supérieurs, soit des chemins de roulement inférieurs.

To summarize, the train includes:

• - upper raceways constituted by traction devices 10 and the guide rollers 11 on the transport wagon 1, the horizontal guide rollers 18 and the vertical guide rollers 19 on the laying wagon 3, at which the rails are designated by R1, and finally the guide rollers 25 on the handling wagon 5, at which the rails are designated by R2;
• - lower raceways constituted by the guide rollers 20 and the roller clamps 21 under the laying wagon 3, at which the rails are designated by R4, the auxiliary rollers 29 and the traction stations 30 on the wagon handling 5, at which the rails are designated by R3;
• - and the rollers 28 on the grout installations health 27 which, depending on their position, are either of the upper raceways or of the lower raceways.

• Un train de transport avec des wagons de stockage 7 des rails R et des wagons de stockage des traverses T chargés, arrive sur le chantier et est accouplé au train de pose. La poutre mobile 23 du wagon de manutention 5 est déployée vers l'avant, dans le sens de la marche du train. Deux premiers rails R1 sont acheminés sur le wagon de transport 1 au moyen des dispositifs de tractions 10 qui les tirent du wagon de stockage 7 sur le chemin de roulement supérieur, à savoir sur les rouleaux de guidage 11, puis sur les rouleaux de guidage horizontaux 18 et verticaux 19 au moyen desquels ils sont centrés sur le wagon de transport 1, puis écartés après cette zone sur le wagon de pose 3 de façon à permettre la pose des traverses T. Puis, les rails arrivent en position R2 sur le wagon de manutention 5 sur lequel ils sont supportés par les rouleaux de guidage 25 sur des cadres 24 (Fig.9).

The work is carried out as follows:

• A transport train with storage wagons 7 of the rails R and storage wagons of the sleepers T loaded, arrives at the site and is coupled to the laying train. The movable beam 23 of the handling wagon 5 is deployed forward, in the direction of travel of the train. Two first rails R1 are conveyed on the transport wagon 1 by means of the traction devices 10 which pull them from the storage wagon 7 on the upper raceway, namely on the guide rollers 11, then on the horizontal guide rollers 18 and vertical 19 by means of which they are centered on the transport wagon 1, then separated after this zone on the laying wagon 3 so as to allow the laying of the sleepers T. Then, the rails arrive in position R2 on the wagon of handling 5 on which they are supported by the guide rollers 25 on frames 24 (Fig.9).

As soon as the guide rollers 28 of the sliding installations 27 are in the high position, the pivoting frames 24 are tilted 90 ′, thus retracting the guide rollers 25. The two rails supported only by the guide roller 28 can be lowered by the sliding installations 27 on the lower raceways, namely on the auxiliary rollers 29, as shown for the rails R3 in FIG. 9 and for the rails R2 in FIG. 10. Here your rails are taken up by traction stations 30 which move them back to the laying wagon 3, where the rails in position R4 are supported and guided by rollers 20 and roller clamps 21, in the separated position, as illustrated in FIG. 13.

During this handling of the rails, the gantry crane 13, moving on the continuous tracks 14, brings the thirty first sleepers and deposits them on the transporter 16. The train advances by its own means and the sleepers are laid by the poses sleepers 17, in automatic cycles, at the prescribed distance.

As soon as the first twenty crosspieces are laid, the rails R4 are centered and placed on the crosspieces T so that they can be spliced through the ribs 37 to the rail R5 laid in the previous interval (Fig.13).

In the meantime, the following rails are routed on the handling wagon and lowered into position R3 on the lower raceway of the handling wagon, as shown schematically in Figure 13.

Then, with respect to the advancing train, the rails R3 are moved back to the front end of the rails R4 by the traction stations 30 and are held stationary so that they can be linked by fishplates 37 to the rails R4, as shown in the figure. 14. During this time, the new rails are routed on the upper tracks and lowered on the lower tracks as soon as the laying train is advanced by a length of rail to be laid.

The installation of the rails which has just been described can be carried out at a working speed of approximately 300 m / hour.

In FIG. 3, 4, the rails R3 and R4 located on the lower raceway have been drawn apart towards the outside in an exaggerated manner so that they can be better distinguished from the rails R1 and R2 located on the upper raceways. In reality, the lower and upper raceways are vertical to one another.

After the laying of several rails, in particular after the storage wagons for the rails and the sleepers have been emptied, these storage wagons are evacuated from the site, while the laying train can remain on standby on the site until the newly loaded storage cars return.

The laying of the sleepers and rails which has just been described constitutes the first stage of the work, and this first stage is followed by a second stage during which the rails are welded and then fixed on the sleepers.

This second stage takes place as follows: a welding machine, a rail neutralization installation and a tightening machine for fixing the rails to the sleepers are brought to the site.

After dismantling the fishplates 37, a certain number of rails are welded together, in particular between 6 and 12 rails depending on the geometry of the track, to form the first long bar of 216 to 432 m, and are also welded with the rails laid in the previous interval. Then this first long bar is neutralized, that is to say brought and maintained at a prescribed temperature, and fixed to the crosspieces. During the neutralization and the fixing of the first long bar to the sleepers, the welding machine advances and welds the next rails to form the second long bar, and as soon as the first long bar is fixed to the sleepers the welding machine moves back and welds the first and second long bars together; then the second long bar is neutralized and fixed on the crosspieces, and during this time the third long bars are welded and so on.

The invention is not limited to the embodiment described, but can of course be carried out with numerous variants with regard to the different elements.

Claims (10)

1. Laying train for new rail tracks composed of a transport wagon (1), a device for laying sleepers (17) and a device for laying rails (21), characterized in that said devices (17, 21) are installed on a laying wagon (3) disposed between said transport wagon (1) and a rail handling wagon (5), than the laying wagon (3) and the handling wagon ( 5) are fitted with tracked bogies (4, 6) and articulated with each other and with the transport wagon (1), that said three wagons (1, 3, 5) are provided with upper raceways (10, 11; 18, 19; 25) arranged to bring the new rails (R) towards the head of the train, where the handling wagon (5) is located, which the laying (3) and handling (5) wagons are further equipped lower raceways (20, 29, 30) arranged to bring the new rails (R) to the rail laying device (21) to place them on the sleepers (T1) below the wagon d e installation (3), and that the handling wagon (5) is further provided with facilities (27) for lowering the rails from the upper raceways to the lower raceways. 2. Laying train according to claim 1, with at least one gantry (13) movable on the transport wagon (1) and the laying wagon (3), characterized in that the upper raceways located on the wagon transport (1) and on the laying wagon (3) comprise horizontal guide rollers (18) and vertical guide rollers (19), partially motorized, arranged to center the two rails (R1) on the transport wagon (1) in an area where the gantry (13) must move freely, and to separate the two rails (R1) after this area on the laying wagon (3) so as to allow the descent of the sleepers to be laid. 3. Installation train according to one of claims 1 or 2, characterized in that on the handling wagon (5) the upper raceways consist of guide rollers (25) partially motorized and mounted on each side on frames (24) pivoting about a horizontal axis (24a) parallel to the longitudinal axis of the wagon (5), while the lower raceways include traction stations (30) for the rails, and this handling wagon (5) is further equipped with sliding installations (27) in the vertical direction and comprising means for supporting the rails, said sliding installations (27) being arranged to take up the rails of said rollers (25) of the tracks upper bearings and lower them to the lower raceways from where the traction means retract these rails. 4. Laying train according to claim 3, characterized in that the means for supporting the rails on the sliding installations (27) are rollers (28) which, in the low position of this installation, form guide rollers lower raceways, if necessary, supplemented by auxiliary rollers (29) fixed to the chassis of the handling wagon (5). 5. Laying train according to claims 3 or 4, characterized in that said traction stations (30) comprise motorized rollers provided with a clamping system for increasing the traction force. 6. Installation train according to one of claims 1 to 5, characterized in that the handling wagon (5) is provided with a movable beam (23) slidably mounted in the longitudinal direction on the chassis of this wagon ( 5), between a retracted transport position (23 ') and a working position deployed forward, said beam (23) being provided with upper (25) and lower (29) raceways, with sliding installations ( 27) for lowering the rails and, where appropriate, traction means. 7. Installation train according to one of claims 1 to 6, comprising at least one sleeper wagon for sleepers, characterized in that there is provided at least one rail wagon (7) which is coupled back said three articulated wagons (1, 3, 5) and in front of said sleeper storage wagon. 8. Laying train according to one of claims 1 to 7, characterized in that the start of the running track of the transport wagon (1) is equipped with traction devices (10) consisting of rail clamps mounted on a telescopic arm (31) for removing the rails of the storage wagon (7) to bring them to the motorized rollers (34, 35) provided with a clamping system (36), said traction devices (10) being movable in the vertical and horizontal planes, to be able to be positioned opposite the rails to be routed. 9. Method for laying new railways using a train according to claim 1 with which the sleepers, conveyed from the storage wagons, are laid one after the other during the continuous advance of the train, characterized in that - the new rails are transported on at least one storage wagon placed at the tail of the transport wagon; - from this storage wagon, said new rails are brought onto the transport and laying wagons up to the handling wagon; - then these new rails are lowered onto the lower level and, with respect to the advancing train, moved back until the rear end of these reaches the front end of the rails previously laid to be spliced there, then are routed under the laying wagon on new sleepers which have just been laid, the following rails being brought to the handling wagon during these operations; - when the handling wagon has moved forward, the following rails are handled in the same way, and so on. 10. Method according to claim 9, characterized in that after the installation of several spliced rails, the storage wagons are evacuated from the site, the splints are dismantled and a certain number of rails are welded to form a first long bar; this is neutralized and fixed on the sleepers; during the neutralization and fixing of the first long bar the next rails are welded to form the second long bar, after which the first and the second long bar are welded together, then the second long bar is neutralized and fixed on the sleepers, and during this time the third long bars are welded and so on.

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