FR2882766A1 - Railway track`s rail maintenance e.g. rail integration, system, has sills, posts, and atleast two wheels driven by heat engine, where translations of posts and sills are coordinated to permit chassis to rest at ground on four support points - Google Patents

Abstract

The system has a chassis with a rectangular frame, two pairs of longitudinal sills, vertical posts (MCa, MCb) associated to the frame, vertical posts (ML1, ML1`) associated to the sills, and four wheels displaced on a railway track, where atleast two wheels are driven by a heat engine. Translations of the posts and translations of each of the sills are coordinated to permit the chassis to rest at the ground on four support points.

Description

The present invention relates to a retractable system for maintenance

  versatile railway rails.

  It is particularly suitable for the maintenance of railway rails, and in particular: - for securing or disconnecting the railway rails of their sleepers equipped with spring clips, for the extraction or installation railway sleepers equipped with spring clamps, lifting the rails for compliance with mechanically stressed rails, and hammering the rails for releasing said internal stresses, the system according to the invention. invention being retractable from the railroad track, at the termination of the aforesaid maintenance operations.

  In general, it is known that in order to carry out these various maintenance operations, the current technical answer, for each of them, is as follows: concerning the fastening of the railroad rail to its sleepers 30 previously equipped with clamps spring-loaded, the operation consists in pushing on two W-shaped springs, arranged head-to-tail on the other hand and 2882766 2 on the other side of the web of the rail, which are supported on the one hand on integral shoulder flanges. of the crossbar, and secondly on the rails of the rail by means of electrically insulating cabochons, this operation of setting up the two W-shaped springs, on either side of the web of the rail, to be performed simultaneously on said springs, and perpendicularly to the web of the rail, concerning the separation of the railway rail from its sleepers, the operation consists of moving the two W-shaped springs apart while acting simultaneously. nément on the two electrically insulating cabochons, concerning the extraction or the installation of sleepers railway rails equipped with spring clips, the operation consists in making a gripping of said crossbar in the vicinity of shoulder metal flanges secured to the sleepers, by bearing under said shoulders of the aforesaid metal flanges, concerning the lifting of the rails for the conformity of rails having undergone mechanical stresses, the operation consists in slightly raising the rail by resting on the surrounding ballast or on the crossheads, and to interpose in the interval thus obtained between the sole of the rail and the corresponding crossbar, a small diameter roller, concerning the hammering of the rails for the release of the aforesaid internal stresses, the operation consists of hammering the soul of the rail step by step, alternately on the inner and outer faces of ladi your soul, by going back and forth on the areas to be treated.

  It is also known that the interlocking and / or disconnected disconnecting devices are equipped with two jaws actuated simultaneously, in a direction transverse to the rail, in order to bring the two springs on either side of the web of the rail. ; said jaws are then spaced to allow positioning of the device in the vicinity of the pair of spring clips associated with the next cross member. During the tightening movement of the springs, the device must be positioned in a precise and fixed manner, avoiding any wedging of the springs at an angle; some devices are equipped with positioning sensors associated with a controller for managing the movement of said devices.

  Similarly, it is also known that the devices for extracting or placing rail railway sleepers equipped with spring clips are equipped with two jaws actuated simultaneously gripping said cross member in the vicinity of the metal flanges to shoulder integral with the sleepers, bearing under said shoulders of the aforesaid metal flanges. During the tightening movement of the flanges, the device must be positioned in a precise and fixed manner, avoiding any deterioration of the aforesaid flanges; the device must then be supported on the surrounding ballast in order to manipulate the cross and allow its extraction or implementation.

  Similarly, it is also known that railway rail lifting devices are equipped with two jaws actuated simultaneously gripping the rail under the top of said rail, taking support in the connection zone between the top and the rail. rail core through gripping fingers associated with the free end of said jaws. During the clamping movement of the rail, the device must then be supported on the surrounding ballast in order to be able to lift the rail and thus allow the installation in the interval obtained between the sole of the rail and the corresponding crossbar, a roller small diameter to free the rail of its sleepers.

  Similarly, it is known moreover that the devices for hammering the rail, an operation consisting in hammering the soul of the rail step by step, alternately on the inner and outer faces of said core, a so-called "striking" operation, are equipped with at least one balance, pivoting in a plane perpendicular to the main axis of the rail, about a horizontal axis parallel to said main axis of said rail, equipped near its free end with a metal counterweight, which comprises at least one near its contact surface with the rail, an interface made of ductile material avoiding marking the web of the rail. The kinetic energy applied to the soul of the rail, during the impact of the flyweight, petniet and, step by step, to release the internal stresses of the rail to be treated.

  These devices, described above, equip: either separate machines, such as a lorry for setting up spring clips, a lorry for gripping sleepers, a rail lifting lorry, a rail hammering lorry, each of they require at least one operator, that is to say heavy machinery weighing several tons, including all these operations on the same platform, equipped with tracks to borrow the ballast, requiring 4 to 5 operators.

  These solutions are not entirely satisfactory for the following reasons: - in the case of separate machines, the manipulations, carried out step by step, require a lot of time and manpower and mobilize expensive equipment, - in the case of a unique machine, regardless of the mobilization of costly means that entails this approach, the handling of setting in track and derailment are complex given the size and mass of such a platform.

  The object of the invention is therefore more particularly to eliminate these disadvantages.

  It therefore proposes a system for the multipurpose maintenance of railroad rails involving at least one device among devices for securing or detaching railway rails from their sleepers equipped with spring clips, extraction pins or installing railway rail sleepers equipped with spring clips, lifting rails for compliance with mechanically stressed rails, and hammering rails for releasing said internal stresses, knowing that at least one of the aforementioned devices is integral with a frame consisting of a rectangular frame whose long side is parallel to the main axis of the railway, the aforesaid frame being substantially horizontal, supported by four vertical uprights simultaneously retractable, and two pairs of longitudinal members slidable in the direction perpendicular to the main axis of the railway ee, each of the aforesaid pairs of spars extending on either side of said frame, each of said spars being associated with a vertical upright, the aforesaid amounts of said spars being simultaneously retractable, the translations of the aforesaid vertical uprights associated with the aforesaid frame, the translations of the aforesaid vertical uprights associated with the aforementioned longitudinal members, and the translations of each of the aforesaid pairs of spars, are coordinated so as to allow the aforesaid frame, at each moment during its translation perpendicular to the main axis of the track, to rest on the ground on four points of support.

  One embodiment will be described hereinafter, by way of non-limiting example, with reference to the accompanying drawings, in which: FIGS. 1a, 1b, 1c, 1d, 1c, 1g, 1h are a diagrammatic representation. The various stages of translation of the system according to the invention, FIG. 2 is a diagrammatic representation of the system in elevation view, FIG. 3 is a schematic representation of the system according to a first view from above, and FIG. Figure 4 is a schematic representation of the system according to a second view from above.

  In the example shown in FIGS. 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, the system according to the invention comprises a frame CH, consisting of a rectangular frame C, the long side of which is parallel to the main axis A of the railway represented by the longitudinal axes A1, A2, of the two rails. The second railway track (not shown) is on the left, the clearing track is therefore to the right of said longitudinal axes A1, 2E The aforesaid frame C consists of two pairs of guides respectively C1, C1> and C2 , C2 ', arranged parallel to the short sides of the frame C, and contained in the plane of the substantially horizontal frame. The guides C1, C1, are arranged along a first short side of the frame C; the guides C2, C2, are arranged along the second short side of the frame C, the guides C1, C2, constituting the outer edge of the short sides of the frame C, the guides Cu, C2 'constituting the inner edge of the short sides of the frame C The guide C1 comprises in the vicinity of its two ends, two vertical uprights MCa, MCb; the guide C2 comprises in the vicinity of its two ends, two vertical uprights MCC, MCd.

  Two longitudinal members L1, L1 ,, are guided in translation respectively by the aforesaid guides C1, Cl ,, the beam L1 can translate to the left, the beam L1, can translate to the right.

  Similarly, two longitudinal members L2, L2 'are guided in translation respectively by the aforesaid guides C2, C2', the longitudinal member L2 can translate to the left, the longitudinal member L2 'can translate to the right.

  The aforesaid longitudinal members L1, L1, L2, L2 'comprise in the vicinity of their free end a vertical upright, respectively ML1, ML1', ML2, ML2>.

  The substantially horizontal translations of the longitudinal members LI, L2, are synchronous; it is the same for substantially horizontal translations of longitudinal members LI>, L2>; in other words, each pair of longitudinal members, respectively LI, L2, and L1>, L2>, slide in their respective guide in the same way.

  The substantially vertical translations of the uprights MCa, MCb, MCc, MCd are also synchronous, essentially in two positions, a "lowered" position and a "raised" position.

  The substantially vertical translations of the uprights ML1, ML1>, ML2, ML2>, are also synchronous, in essentially two positions, a "lowered" position and a "raised" position.

  In general, when the aforesaid amounts MCa, MCb, MCC, MCd, are in the "lowered" position, the aforesaid ML1, ML1>, ML2, ML2>, are in the "raised" position, and vice versa.

  Thus, the combination of the substantially horizontal translation movements of the longitudinal members LI, L1>, L2, L2>, with respect to the frame C, of the substantially vertical translation movements of the uprights MCa, MCb, MCc, MCd, associated with the frame C, and substantially vertical translation movements of the uprights ML1, ML1>, ML2, ML2>, associated with longitudinal members LI, L1>, L2, L2>, allows a stepwise translation of the frame CH, to the right, that is to say say towards the runway.

  Advantageously, the drives in translation of the movable elements, mentioned above, will be of the hydraulic type or of the pneumatic or electric type.

  In the example of Figure la, the longitudinal members L1, L2, are in "retracted" position; the longitudinal members L1>, L2> are in the "output" position; frame C is located to the left of the main axis A of the track; the chassis CH is approximately centered with respect to the main axis A of the track; the amounts MCa, MCb, MCC, MCd, are in the "raised" position; the amounts ML1, ML1>, ML2, ML2>, are "lowered" position; thus the chassis CH rests on the ground on the four uprights ML1, ML1>, ML2, ML2>.

  This configuration corresponds to the operational position of the system according to the invention which allows the multipurpose maintenance of railroad rails involving at least one device among devices for securing or detaching railway rails from their sleepers equipped with clamps. spring-loaded, extracting or setting-up of railway rail sleepers equipped with spring clamps, lifting of rails for compliance of mechanically stressed rails, and pounding of rails for release said internal stresses.

  In the examples of FIGS. 1b, 1c, 1d, 1c, 1f, 1g, 1h, the operations of translation of the frame CH in the direction of the clearance path are represented, according to seven successive steps.

  In the example of Figure lb, the longitudinal members L1, L2 are in the "partially out" position; the longitudinal members L1>, L2> are in the "partially out" position; the frame C is located partially to the right of the main axis 0 of the track; the chassis CH is approximately centered with respect to the main axis A of the track; the amounts MCa, MCb, MCC, MCd, are in the "raised" position; the amounts ML1, ML1>, ML2, ML2>, are "lowered" position; thus the chassis CH rests on the ground on the four uprights ML1, ML1>, ML2, ML2>.

  In the example of Figure lc, the longitudinal members L1, L2, are in "retracted" position; the longitudinal members L1>, L2> are in the "partially out" position; the C-frame is located partially to the right of the main axis of the track; the frame CH is approximately to the right of the main axis de of the track; the amounts MCa, MCb, MCC, MCd are in the "lowered" position; the amounts ML1, ML1 ,, ML2, ML2 ,, are "raised" position; thus the chassis CH rests on the ground on the four uprights MCa, MCb, MCC, MCd.

  In the example of Figure ld, the longitudinal members L1, L2, are in "retracted" position; the longitudinal members L1 ,, L2 'are in the "output" position; frame C is situated partially to the right of the main axis A of the track; the frame CH is approximately to the right of the main axis A of the track; the amounts MCa, MCb, MCc, MCd, are in the "lowered" position; the amounts ML1, ML1>, ML2, ML2 ,, are "raised" position; thus the chassis CH rests on the ground on the four uprights MCa, MCb, MCc, MCd.

  In the example of Figure 1c, the longitudinal members L1, L2 are in the "output" position; the longitudinal members L1 ,, L2 ,, are in "retracted" position; frame C is located to the right of the main axis A of the track; the frame CH is approximately to the right of the main axis A of the track; the amounts MCa, MCb, MCC, MCd, are in the "raised" position; the amounts ML1, ML1>, ML2, ML2>, are "lowered" position; thus the chassis CH rests on the ground on the four uprights ML1, ML1 ', ML2, ML2'.

  In the example of Figure 1f, the longitudinal members L1, L2 are in the "retracted" position; the longitudinal members L1 ,, L2 'are in the "output" position; frame C is located to the right of the main axis A of the track; the chassis CH is essentially to the right of the main axis A of the track; the amounts MCa, MCb, MCc, MCd, are in the "lowered" position; the amounts ML1, ML1>, ML2, ML2 ,, are "raised" position; thus the chassis CH rests on the ground on the four uprights MCa, MCb, MCc, MCd.

  In the example of Figure 1g, the longitudinal members L1, L2 are in the "output" position; the longitudinal members Lp, L2 ,, are in "retracted" position; frame C is located to the right of the main axis A of the track; the chassis CH is essentially to the right of the main axis L of the track; the amounts MCa, MCb, MCC, MCd, are in the "raised" position; the amounts ML1, ML1 ,, ML2, ML2>, are "lowered" position; thus the chassis CH rests on the ground on the four uprights ML1, ML1>, ML2, ML2>.

  In the example of Figure 1h, the longitudinal members L1, L2, are in "retracted" position; the longitudinal members L1>, L2> are in the "retracted" position; frame C is located to the right of the main axis A of the track; the chassis CH is situated to the right of the main axis A of the track; the amounts MCa, MCb, MCC, MCd are in the "lowered" position; the amounts ML1, ML1 ,, ML2, ML2,, are "raised" position; thus the chassis CH rests on the ground on the four uprights MCa, MCb, MCc, MCd.

  This configuration corresponds to the nonoperational position of the system according to the invention which allows the chassis CH to be positioned on the release track.

  In the example of Figure 2, the system according to the invention is in the configuration corresponding to the operational position, that is to say according to Figure la.

  The railroad track consists of two rails R1, R2, on either side of the main axis L. of the track; these two rails R1, R2, are integral with crossbars T by means of fasteners AT1, AT1>, AT2, AT2 ,, respectively, such spring clamps arranged head to tail on either side of the core of rail and supported on the one hand on shoulder metal flanges (not shown) integral with the cross member and secondly on the rail flanges by means of electrically insulating cabs (not shown).

  The T-bars rest on the BA ballast; it will be noted that the second channel, not shown, is located to the left of the main axis L1, and therefore the clearance path is located to the right of the main axis A. The system according to the invention comprises a CH chassis constituted : a frame C supported by four uprights MCa, MCb, MC, (not shown), MCd (not shown); in the present case, these four uprights are in "raised" position, of four longitudinal members L1 (not shown), LI>, L2 (not shown), L2> (not shown), integral respectively amounts ML1, ML1>, ML2 (not shown) ML2> (not shown); in the present case, these four uprights are in "raised" position, devices D1, D2, railway rail maintenance, secured respectively to the frame C and longitudinal members L1>, L2>; in this case, these two devices are devices for securing or detaching the railway rails of their sleepers equipped with spring clips, which devices are designed to allow the chassis CH to rest on the top of the rail a MO engine associated with a HY hydraulic unit; said hydraulic unit being associated with the translation drive members (not shown) of the mobile elements MCa, MCb, MCC, MCd, ML1, ML1 ', ML2, ML2>, L1, LI>, L2, L2'; in the present case, the engine MO and the hydraulic unit HY are located above the device DI, and a seated operator OP, located above the device D2; the latter is thus in charge of maneuvering the different rail maintenance devices, such as the devices for securing or detaching the railway rails from their sleepers equipped with spring clamps, extraction or placement of sleepers railway rails equipped with spring clamps, lifting rails for aligning mechanically stressed rails, and hammering rails for releasing said internal stresses, as well as the elements mobile MCa, MCb, MCc, MCd, PWM, ML1, ML2, ML2 ', LI, LI', L2, L2, for performing the transfer operation of the system according to the invention, towards the runway , that is, to the right of the main axis A of the railway track, beyond the rail R2.

  In the example shown in FIG. 3, the chassis CH, approximately centered on either side of the main axis A of the railroad track consisting of the rails R 1, R 2, comprises, in the zone close to said rails R 1, R 2: the frame C supported by four vertical uprights MCa, MCb, MCc MCd, the four uprights MLI, MLI>, ML2, ML2>, respectively integral with the longitudinal members Li (not shown), L1, L2 (not shown) , L2 ', the aforesaid longitudinal members L1, L2 being in the "retracted" position, the aforesaid longitudinal members L1, L2, being in the "output" position, devices Dia, Dib, Die, respectively for securing the railway rail RI on its sleepers equipped with spring clips, hammering the rail for the release of its internal stresses, and detaching the rail from its sleepers equipped with spring clips; these devices Dia, Dib, Die, are integral with the frame C, and devices D2a, D2b, D2c respectively securing the railway rail R2 on its sleepers equipped with spring clips, hammering the rail for the release of its internal constraints, and detaching the rail from its sleepers equipped with spring clips; these devices D2a, D2b, D2c are integral with the longitudinal members Li ', L2>.

  In the example shown in FIG. 4, the chassis CH, approximately centered on either side of the main axis A of the railroad track consisting of the rails R 1, R 2, comprises, in the zone above said rails Ri, R2.

  The frame C supported by four vertical uprights MCa, MCb, MCc MCd, the four uprights ML1, MLi, ML2, ML2 ,, respectively integral longitudinal members L1 (not shown), L1, L2 (not shown), L2 >, the aforesaid longitudinal members L1, L2 being in the "retracted" position, the aforesaid longitudinal members L1>, L2, being in the "output" position, the thermal engine MO and the hydraulic unit HY located above the devices Dia, Dib, Die , integral with the frame C, and two operators OP1, OP2, located above the devices D2a, D2b, D2c, integral with the longitudinal members L1>, L2 '.

  Thus the operators OP1, OP2, will be able to carry out the maintenance of the rails of railway, and in particular the operations: of joining or detaching the rails of railway of their sleepers equipped with spring clips, - of extraction or setting in place railway rail sleepers equipped with spring clamps, lifting the rails for compliance of mechanically stressed rails, and hammering the rails for the release of the aforementioned internal stresses, as well as the transfer operation of the system according to the invention in the direction of the clearance path at the termination of said maintenance operations.

  Of course, the system according to the invention will be equipped with four wheels to move on the railway track.

  Advantageously, at least two wheels will be driven by the above-mentioned engine MO allowing the system according to the invention to be self-propelled.

  2882766 - 14 - Thus a single machine, of dimensions close to a lorry, piloted by two operators, will be able to carry out all the maintenance operations, in particular the lifting of the rails before the hammering operation, and will be retractable, releasing thus the railway way.

Claims (5)

- 15 - Claims   1. System for the multipurpose maintenance of railroad tracks (R1, R2), involving at least one device among securing devices (Dia, D2a), or of uncoupling (Dlc, D2c), railroad tracks iron (R1, R2), their sleepers (T) equipped with spring clamps, extraction or placement of crosspieces (T) of railway rails (R1, R2), equipped with spring clips, of lifting the rails (R1, R2), for the compliance of rails having undergone mechanical stresses, and hammering (Dib, D2b) rails (R1, R2), for the release of the aforesaid internal stresses, characterized in at least one of the aforementioned devices (Dia, Dib, Die, D2a, D2b, D2c) is secured to a frame (CH) consisting of a rectangular frame (C) whose long side is parallel to the axis main (A) of the railway, the aforesaid frame (C) being substantially horizontal, supported by four uprights (MCa, MCb, MCc, MCd), simultaneously retractable, and two pairs of longitudinal members (L1, L2, and L1, L2 '), slidable in the direction perpendicular to the main axis (A) of the railway, each of the said pairs of longitudinal members (L1, L2, and L1 ', L2'), extending on either side of said frame (C,) each of said longitudinal members (L1, L2, L1 ', L2') being associated with a vertical upright (ML1, ML2, ML1>, ML2>), the aforesaid amounts (ML1, ML2, MLr, ML2 '), said longitudinal members (L1, L2, L1', L2 ') being simultaneously retractable, the translations of the aforementioned vertical uprights (MCa, MCb, MCc, MCd), associated with the aforesaid frame (C), the translations of the aforesaid vertical uprights (ML1, ML2, MLr, ML2>), associated with the aforementioned longitudinal members (L1, L2, Lr, L2>), and the translations of each said pairs of spars (L1, L2, and L1>, L2,), are coordinated so as to allow said frame (CH), at each moment during its translation perpendicular to the main axis (A) of the track, to rest on the ground on four points of support.   2882766 - 16 - 2. System according to claim 1, characterized in that the drives in translation of the movable elements (MCa, MCb, MCc, MCd, ML1, ML2, ML1 ', ML2>, L1, L2, and L1>, L2>), will be hydraulic type or pneumatic type or electric type.   3. System according to claim 2, characterized in that the said drives in translation of the movable elements (MCa, MCb, MCC, MCd, ML1, ML2, ML1>, ML2>, L1, L2, and L1>, L2>). , are carried out by means of a heat engine (MO) associated with a hydraulic power unit (HY).   4. System according to claim 1, characterized in that it is associated with four wheels allowing the system to move on the railway track.   5. System according to claim 4, characterized in that two of the aforesaid wheels are driven by the aforesaid heat engine (MO) allowing the system to be self-propelled.