FR2643922A1 - ARRANGEMENT FOR THE HANDLING OF A RUNNING ROAD FOR GATES FOR LAYING RAILWAYS AND A METHOD OF LAYING A RUNNING ROAD WITH THIS ARRANGEMENT - Google Patents

Abstract

Arrangement for handling a runway for railroad laying gantries from said gantries, said runway being formed of sections. It comprises a handling beam 2, said sections to the supporting elements 23 of which are fixed rails 21 for guiding hoists and elements 25 formed by rail elements similar to the rails 21, movable between a rest position for which the ends of the handling beam 2 have a width 1 less than the space available inside the gantries and a working position for which said portions are arranged in the extension of said rails 21, the handling beam 2 then having, at its ends, a width L greater than 1, L being the spacing required for the gantry raceway.

Description

-l Arrangement for handling a raceway for gantry cranes

  The laying of a track and method of laying a raceway with this arrangement The present invention relates in a way

  general laying of railways.

  Usually, during the laying of railway tracks, whether it is the laying of a new track or the laying of a new track to replace a worn track, gantry cranes wider than the track width. These gantries are such that they can straddle wagons in order to load or unload them into track elements (sleepers, rails or even pre-constituted sections of flies, the rails being assembled on the sleepers. The gantries are self-propelled machines, some are provided with wheels with tires atin to roll on the laying platform but those most commonly used are provided with rolling means in the form of a roller and a raceway

must be provided for them.

  The raceway of said gantries is very often formed by the long welded rails intended

the way that we set up.

  When the long rails are thus used as a raceway for the gantry cranes, it is necessary to position the said rails at the spacing required for the passage of the gantry cranes and then, using a substitute machine, to take them back in order to the

position on the sleepers.

  This method has many drawbacks. On the one hand this requires multiple manipulations of said long rails, but moreover it is sometimes necessary to provide for wedging said rails if the laying platform is not fully adjusted or

  still if it threatens to sag.

  On the other hand, the laying of long rails on the platform requires the existence of a way for the

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  running of the laying train; a provisional track must therefore be put in place when installing a new fly. Another disadvantage of this method is that it cannot of course be implemented when the track to be implemented does not include

long welded rails.

  It has already been proposed a method according to which the gantries roll on a raceway constituted by profiles put in place and deposited by the gantries themselves but this is little used because the installation of the profiles at the desired spacing for the raceway is a problem

still poorly resolved.

  Indeed, the gantries are generally in the form of a reverse U positioned transversely to the raceway in order to rest by rollers located at the lower ends of the branches of the U on said raceway. The two branches of the U are elements of fairly large dimensions since they are constituted by jacks ensuring the variation in height of the gantry. An engine control station allowing the gantry to move is also provided on one of the two branches in the U. It will then be understood that the width available inside the gantry is less than the spacing of the raceway thereof. It is therefore difficult to carry the profiles from the upper crossbar thereof and to install them &

  the spacing required for the raceway.

  This is why, the present invention tends to solve this problem by proposing an arrangement for the handling of a raceway for gantries for laying railway tracks from said gantries, said raceway being in the form of profiles, characterized in that that it comprises a handling beam, sections profiled to the load-bearing elements which are fixed to the hoist guide rails and elements formed by rail elements similar to the rails, movable between a rest position for which the ends of the beam handling equipment have a width (1) less than the space available in the interior of the gantries and a working position for which said portions are arranged in the extension of said rails, the handling beam then having, at its ends, a width CL) greater than C (1), CL) being the spacing necessary for the raceway of the

gantries.

  The use of a handling beam thus arranged in order to allow the use of hoists which can move between the internal space of the gantries C (1) and an extreme position for which they are in place to place the raceway çL >, allows the installation and removal of said path this

  easy and fast rolling.

  According to another aspect of the invention, the profiles are, quite interestingly, made from sheet piles which allows, by the width of their flat shear to place them on

even unprepared land.

  The present invention also relates to the method of laying such a raceway as well as a method of laying a railway track using

such a raceway.

  The present invention will be better understood and other advantages of cellecl will emerge from the

  description which follows of an example of implementation

  work thereof with reference to the drawings in which: Figure 1 is a front view of a gantry; Figure 2 is a side view of a profile handling beam; Figure 3 is a top view of said handling beam; Figure 4 is a sectional view along line IV-IV of Figure 5 of a profile; Tigure 5 is a partial top view of a profile, on a reduced scale; Figure 6 shows a spreader intended for handling profiles; Figure 7 schematically shows the installation of the raceway; Figure 8 shows schematically the laying of a track; Figure 9 shows schematically the removal of the

Raceway.

  We see in Figure 1, a gantry 1 which is, in a manner known per se, in the general form of an inverted U. It rests by rollers 12 provided at the lower ends of the vertical branches 11 of the U on a raceway not shown. We see at 13 the cylinders for moving the transverse beam 14 between the high position shown in solid lines and the low position

shown in dotted lines.

  One of the branches 11 carries a control station 1b for the hydraulic motor M of the gantry 1 as well as for the control of the jacks 13 and other equipment that it carries. In service, two gantry cranes 1 are twinned as seen for example on the

figures 7, 8 and 9.

  Gantry cranes 1 can carry equipment

by means of attachment 16.

  As shown, each gantry crane 1 is equipped with removable cross-members 17 making it possible to constitute temporary storage areas 18 of which

  the utility will be explained later.

  For the handling of the profiles which should constitute the raceway of the gantries 1, a handling beam 2, visible in FIGS. 2 and 3,

  is attached to the attachment means 16.

  As indicated above, the gantries 1 are used in pairs, this is why the beam Z has loops 26 for its attachment to the hooking means 16 in two distinct zones preferably located symmetrically with respect to

his middle.

  Usually, said handling beam comprises two supporting elements 23 held in relation to one another by cross-pieces 24. The beam 2 is thus generally rectangular and its width is less than the space available between the branches

  11 vertical porticoes that carry it.

  In order to ensure the handling of the profiles with such a beam 2, it has been associated with two 2nd hoists movable on longitudinal rails 21 fixed to this

  effect on said load-bearing elements 23.

  So that it is possible to set up with such a beam 2 elements spaced apart by the distance hL) necessary for the raceway of the gantries 1, there are provided according to the invention at the ends of the beam 2 mobile portions 25 ,

said rails 21.

  We see in Figure 3, in solid lines, the right end of the beam 2 with said portions 25 in the rest position and the left end of said beam with said portions 25 in the working position. Note that when these portions 25 are in the working position, the end of the beam then has a width (L) whereas when these portions are in the rest position, the end of the beam

has a width (1).

  We see in Figures 2 and 3 that said portions are formed by rail elements similar to rails 21. These elements 25 are movably mounted on the support elements 23 by supports 27 of generally triangular shape. Each element 25 being worn

by two supports 27.

  The supports 27 are carried by the carrier elements 23, along one of their sides, around a vertical axis 28, they can thus pivot around their axes 28 between a position for which they are against the carrier element 23 as on the right of Figure 3 and a position for which they are perpendicular to the carrier element 2b as on the left

in Figure 3.

  The supports 27 carry, by the top opposite to the

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  dimension by which they are mounted on the carrier element 23, the elements 25 by portions of vertical axes 2t. The carrier element 23, the supports 27 and the element 25 thus form deformable parallelograms. In the working position, shown on the left of FIG. 3, the end of the element 25 directed towards the center of the beam is positioned against the end of the rail 21- in extension thereof so that the

  hoist 22 can flow from said rail 21 to element 25.

  As can be seen in the figures, the element 25 has a very flat S-shape in order to ensure a connection without sharp angles between the rail portions.

  located at different distances.

  It is understood that by such arrangements, the hoists 22 can carry elements and position them at a distance (L) from one another when they arrive at the end of the beam 2 in the working position while when the beam 2 has its ends in the rest position it can be overlapped by the gantries 1 in order to be taken by

the attachment means 16.

  Figures 4 and 5 show the sections intended to form the raceway of the gantries 1. According to the invention, sheet piles are used for the manufacture of these sections such as those used in construction to create

earth retaining walls.

  These sheet piles are interesting for creating a raceway according to the invention because they have, in section, the shape of a bowl with a wide

  flat bottom 31 and low vertical edges 32.

  Indeed, the presence of the wide flat bottom 31 ensures good stability of said sheet pile when it rests on the ground by said

  melts and this even on unprepared soils.

  Usually, the sheet piles 3 are rectangular, their length being much longer.

264392Z

larger than their width.

  The flanges 32 are connected to the bottom 31 by an oblique wall 33 and have their upper extremity folded back into the butt 34 in order to give good rigidity to the sheet pile 3. To make these sheet piles serve as a raceway, a U-shaped section is welded axially. overturned in order to form an axial groove 35 of dimensions such that the rollers 12 of the gantries 1 can collaborate by their circumferential groove 19 with it. At points not far from its center, the sheet pile 3 has four bridges 37 intended for its

  hooking to a lifting beam for handling.

  At one end of the sheet pile 3, the rib 35 carries an end piece 38 intended to fit into the end of the rib not carrying an end piece of the neighboring sheet pile 3 to ensure proper positioning of the sheet piles 3 one by compared to others when they form the raceway these

gantries 1.

  We see in Figure 6 the lifter 4 for handling sheet piles 3 as they

have just been described.

  The lifter 4 has a ring 41 by which it can be hung on the hoist 22 of the beam 2. Its parallelepiped body 42 ends in two faces 43 which are perpendicular to it and which carry pins 44, all directed in the same direction, intended at

  go under the bridges 37 of the sheet pile 3.

  Stop means 45 are provided in order to prevent any movement of the studs 44 relative to the bridges 37 when the spreader 4 carries a

sheet pile 3.

  Figures 7 to 9 will show an example of the use of a handling arrangement such that

has just been described.

  In this example, we want to lay a new track formed of track sections. An arrow F gives

the direction of progress of the site.

  To this effect, we pose, FIG. 7, the raceway of the gantries 1. It can be seen that in this effect, sheet piles 3 are stored in the volumes 18 created by the removable sleepers 17 of the gantries 1, the handling beam 2 is attached to gantries

  with these movable elements 25 in the working position.

  We then take the sheet piles 3 using the lifting beams 4 described above attached to the hoists 22 and then, by displacement of said hoists on the rails 21, 25, they are put in place at the front of the gantries in order to

create the raceway.

  When a long length of raceway is thus created, the handling beam 2 is deposited at the front end of said raceway. The elements 25 of its end facing the raceway are brought back to the rest position so that the gantries 1 can overlap it in order to go to the rear end of the raceway. The cross members 17 are dismantled in order to

  free the internal space of said gantries.

  We see in Figure 8 the gantry cranes 1 positioned on the wagon transporting them to the site. Once unloaded on their track, the gantries 1 circulate in order to unload the track elements 5 carried by wagons 8. We see that for this purpose said gantries overlap the wagons 8 and their loading, and, this is why the

sleepers 17 have been dismantled.

  Track elements 5 are positioned &

  inside the raceway then spliced.

  When the new flight has been placed over a length substantially equal to the raceway, the gantries 1 are brought above the beam 2 which is then taken up. The sleepers 17 are reassembled and the gantries go to the other end of the path

  bearing to ensure removal, Figure 9.

  To this end, the sheet piles s 3 are lifted by the lifting beams 4 and stacked in the storage volumes 18. Once the raceway has been removed, it is again placed as in FIG. 7 at the front of the

new path.

  We can easily understand that we could remove the old track with the same equipment, it would be enough for a train of empty wagons to be parked

in front of the porticoes.

  We would install the raceway in the same way, then, the beam 2 and the. sleepers would be placed on a train wagon located at the front,

  or on the wagon intended for the transport of gantry cranes.

  The gantry cranes would then shuttle between the empty train located at 1 'before they would load the deposited track elements and the train located at the rear in order to unload the new track elements. The new track can also be formed in a known manner by sleepers, for example concrete, on which long long rails are deposited directly in place for example by pulling them

at the gantries.

Claims (7)

Claims   1. Arrangement for the handling of a raceway for gantries for laying railway tracks from said gantries, said raceway being formed from profiles, characterized in that it comprises a handling beam (2), from said profiles to the supporting elements (233 from which are fixed rails (21> for guiding hoists (22) and elements (25) formed by rail elements similar to the rails (21), movable between a rest position for which the ends of the handling beam (2) have a width (1) less than the space available inside the gantries and a working position for which said portions are arranged in the extension of said rails (2i), the handling beam (2) then having, at its ends, a width CL) greater than (1), CL) being the spacing necessary for the raceway of the gantries. at. Arrangement according to claim 1, characterized in that the movable elements (25) are in flattened S shape.   3. Arrangement according to claim 1 or 2, characterized in that the supports (27) are carried by the carrier elements (23) around an axis (28) and   carry the movable elements (25) by an axis (29).   4. Arrangement according to claim 3, characterized in that the carrier element (23), the supports (27) and the movable element (25) form a deformable parallelogram with said supports (27) perpendicular & the carrier element ( 23) when   the movable element (25) is in the working position.   5. Arrangement according to any one of   claims 1 to 4, characterized in that the   movable elements (25) are mounted on the carrier elements (23) by supports (27) of form broadly triangular.   6. Arrangement according to any one of   previous claims, characterized in that the   profiles are sheet piles t3) having in section the shape of a bowl with a wide flat bottom (31) on which is arranged an axial rib (35) with which rollers can collaborate (12> gantries (1) by their groove 7. Arrangement according to claim 6, characterized in that a lifting beam (4) for handling the profiles (3) is attached to the hoist (22) of the beam (2) by a ring (41) and carries said profiles (3) by nipples <44) which engage under bridges (37) of said sheet pile (3).   8. A method of laying a railway track comprising the installation, before the laying of the track proper, of a raceway by gantry cranes for handling track elements, said raceway being arranged on either side other of the location of the future track and being made up of profiles capable of cooperating with the rollers of the laying gantries, characterized in that one uses for the laying of said raceway raceway elements stored at inside the space defined by said gantries and which are handled using a beam, carried by said gantries, provided with movable elements making it possible to place the raceway elements at the desired spacing.   9. A method of laying a railroad track using gantries according to claim 8, characterized in that after having laid their raceway, after the removal of the handling beam whose movable elements are put in the rest position and disassembling the sleepers (17), said gantries ensure the installation of track elements which they unload from wagons. 10. A method of laying a railroad track according to claim 8 or 9, characterized in that the sections are sheet piles (3) stored in volumes {18) created by sleepers (17) connecting the branches of said gantries (1 ;, the handling beam <2) is attached to said gantries, the mobile elements (25) are put in the working position, and in that each of the hoists (22> carries a lifting beam (4) by which it takes a sheet pile (3) in the volume (18) and brings it by displacement along the rails (21, 25) at the front of the gantries then, the ends of the elements (25) being spaced by the width (L) necessary for the raceway, each gantry crane places the sheet pile it carries on the track laying platform.