EP2554745B1 - Machine for reconditioning railway roadbeds - Google Patents

Machine for reconditioning railway roadbeds Download PDF

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Publication number
EP2554745B1
EP2554745B1 EP12178881.4A EP12178881A EP2554745B1 EP 2554745 B1 EP2554745 B1 EP 2554745B1 EP 12178881 A EP12178881 A EP 12178881A EP 2554745 B1 EP2554745 B1 EP 2554745B1
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EP
European Patent Office
Prior art keywords
means
rails
characterized
connected
machine according
Prior art date
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Application number
EP12178881.4A
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German (de)
French (fr)
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EP2554745A1 (en
Inventor
Enrico Valditerra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Matisa Materiel Industriel SA
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Matisa Materiel Industriel SA
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Priority to IT000088A priority Critical patent/ITGE20110088A1/en
Application filed by Matisa Materiel Industriel SA filed Critical Matisa Materiel Industriel SA
Publication of EP2554745A1 publication Critical patent/EP2554745A1/en
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Publication of EP2554745B1 publication Critical patent/EP2554745B1/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/06Renewing or cleaning the ballast in situ, with or without concurrent work on the track
    • E01B27/10Renewing or cleaning the ballast in situ, with or without concurrent work on the track without taking-up track
    • E01B27/105Renewing or cleaning the ballast in situ, with or without concurrent work on the track without taking-up track the track having been lifted
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast

Description

  • The present invention concerns a machine for reconditioning railway roadbeds.
  • As is well-known, machines exist for reconditioning railway roadbeds, comprising an equipped wagon provided with means of temporarily lifting the track of the roadbed under the wagon, and excavation means for removing the ballast of the roadbed under the raised track. This removed ballast is conveyed to screening means to be partially recovered and returned to the reconditioned roadbed. In these machines, the excavating means, usually fitted with an excavating chain, pass under the sleepers for their entire length. The overall width of the excavating chain is somewhat greater, on both sides, than the length of the sleepers and therefore these machines cannot be used where any obstacle, natural or due to construction works, limits the free transverse section of the roadbed, on one or both sides in proximity to the edge of the heads of the sleepers, for example in tunnels, between platforms in stations, on certain bridges and so forth.
  • In Italian patent no. 948861 a machine is described for reconditioning railway roadbeds which, besides the means described above, also comprises means for rotating the sleepers, at least partly liberated from the rails, means for passing these sleepers in an oblique position through the gap free of the excavating chain, and means for rotating the sleepers again to their position perpendicular to the rails.
  • By means of such a machine described in that patent, it is possible to operate even where there are obstacles, natural and otherwise, which limit the free transverse section of the roadbed.
  • However, in reconditioning a railway roadbed, there is often the need to lower the level of the roadbed itself, for example where the tracks run in tunnels. This lowering of the roadbed is necessitated in order to allow particularly bulky railway wagons to pass, for example goods wagons. With the machines described above it is not possible, in the process of reconditioning the roadbed, to also carry out a lowering of the roadbed itself. In addition, the means of lifting and rotating the sleepers described in the aforementioned patent, which substantially comprise bogies running on axles, are very complex and inefficient.
  • From GB 2 247 265 A a machine for reconditioning railway roadbeds is known, comprising:
    • an equipped wagon provided with means suitable for temporarily lifting the rails of a track,
    • excavation means suitable for removing the material of the roadbed and
    • means of lifting and rotating at least one sleepers to be released from the rails of the track.
  • However, this known machine is not provided with a unit for demolishing the roadbed.
  • From DE 43 29 277 A1 an apparatus for loosening and compacting the ballast of track installations by means of vibrating picks is known. This know machine does not incorporate lifting means for both rails and sleepers, nor is it equipped with means for removing the ballast from the trackbed.
  • The object of the present invention is therefore the creation of a machine for reconditioning railway roadbeds which allows the performance of special jobs, such as the lowering of the roadbed which is necessary in some cases inside railway tunnels, including in the presence of any rocky layers lying under the ballast, or other normal material for making the roadbed. By means of the present machine, furthermore, it is possible rapidly and efficiently to lift and rotate the sleepers in synergy with the jobs of excavating and lowering the roadbed.
  • This object is achieved by the present invention by means of a machine for reconditioning railway roadbeds according to what is claimed in Claim 1.
  • Other important aspects of the present machine are stated in the dependent claims.
  • Further characteristics and advantages of the present invention will become better understood in the course of the following description, considered in exemplary and non-limiting terms and referring to the attached drawings, in which:
    • Fig. 1 shows a first view in lateral elevation of a machine for reconditioning railway roadbeds according to the present invention;
    • Fig. 2 shows a second view in lateral elevation of the present machine in an operating phase;
    • Fig. 3 shows a plan view of a stretch of railway line on which the present machine is working;
    • Fig. 4 shows a view in lateral elevation and partially in section of a rotatable clamp of the present machine, suitable for gripping, lifting and inclining the sleepers of the railway line whose roadbed needs to be reconditioned;
    • Fig. 5 shows a plan view and partially in section of a bogie for the rotatable clamp of Fig. 4 to run on;
    • Fig. 6 shows a front view, partially in section, of a unit for demolishing the roadbed, provided with a series of pneumatic hammers; and
    • Fig. 7 shows a front view and partially in section of a variant embodiment of the demolition unit of Fig. 6.
  • With reference to these attached drawings and with particular reference to Fig. 1 thereof, no. 1 indicates an equipped wagon of the present machine for reconditioning railway roadbeds. The wagon 1 comprises at the top a longitudinal beam 2, whose front and rear ends 3 and 4, are supported by corresponding railway axles 5 and 6, or bogies, suitable for running on a track 7 of any railway line. This track 7 consists of a pair of rails 8, of which one is visible in the drawing, joined by a series of sleepers 9 suitably positioned and connected to the rails 8 by suitable removable fixing means 58. The track 7 rests on a roadbed 10 formed of ballast and/or other suitable material. The equipped wagon 1 comprises at its front and rear ends 3 and 4 control cabins 11 and 12. Starting from the front end 3 of wagon 1, the present machine comprises a gripping and lifting device 13 for the rails 8 of the track 7. This device 13 for each of the rails 8 comprises for example a pair of lifting rollers or clamps 14 held solid by an arm 15 connected to actuating means 16 for raising and lowering it, for example linear actuators. The fixed part of these actuating means 16 is connected to the longitudinal beam 2 of wagon 1. To the longitudinal beam 2 is also connected, immediately upline of this lifting device 13 for the rails 8, a unit for demolishing the roadbed, which comprises a row of pneumatic hammers 17 arranged transversely with respect to the track 7. Upline of these pneumatic hammers 17 a rotatable clamp 18 is shown, suitable for gripping an individual sleeper 9, lifting it, inclining it suitably and taking it back to a new position, as we will see more clearly below in the description of the operation of the present machine. This rotatable clamp 18 is connected to an actuator 19 connected at the top to a bogie 20 suitable for running longitudinally inside a box-section support 21 fixed to the longitudinal beam 2 of the wagon 1. On the longitudinal beam 2 a motor unit 22 is installed which activates a device 23 for excavating and collecting the material of the roadbed 10, which is known per se. This device 23 is suitably inclined and comprises an excavating chain, not illustrated, suitable for conveying the material of the roadbed onto a conveyor belt located inside the side-walls of the device. This belt conveys the material removed from the roadbed towards a further conveyor belt 47 which will transfer it to a following wagon, not illustrated, provided with screening means for the excavated material, to eliminate reject material and redistribute the cleaned material recovered by screening. The excavating device 23 is supported on the beam 2 by means of an oscillation pin 24 and by actuating means 25 which allow the inclination to be varied. All the devices described above and provided for on the wagon 1 are illustrated in Fig. 1 in a non-operating position.
  • Fig. 4 illustrates the rotatable clamp 18 in detail. This clamp 18 comprises two arms 26 suitable for rotating around a common pin 27 so as to separate and come together to clamp one of the sleepers 9 of Fig. 1. These arms 26 are controlled by an actuator 28. The clamp 18 is connected to a head 29 integral with the movable rod 30 of the actuator 19. This rod 30 runs inside a cylinder 31, forming an annular upper part 32 which rests, by means of a thrust bearing 33, on a support 34 fixed at the bottom to the bogie 20. This cylinder 31 is capable of rotating around a vertical axis with respect to said support 34 and said bogie 20, and roller bearings 35 are provided for this purpose in said support 34. The cylinder 31 is rotated in one direction or the other, and transmits said rotary motion to the arms 26 of the clamp 18, by means of an actuator 36, provided in the bogie 20. This actuator 36 (see also Fig. 5 in the attached drawings) comprises a cylinder 37 connected at one end and by a rotation pin 38 to a wall of the bogie 20. In this cylinder 37 there runs in one direction or the other a rod 30 connected, at one end and by means of a rotation pin 39, to a lever connected to a head 41 of the cylinder projecting into the bogie 20. This bogie 20 comprises a series of pairs of wheels 42 by means of which it can run along guides 43 formed in the box-section support 21 fixed to the longitudinal beam 2. At least one pair of such wheels, for example wheels 42', are connected to an activating reduction motor 44.
  • Fig. 6 illustrates the unit of the present machine for demolishing the roadbed 10. This demolition unit comprises two pneumatic hammers 17 positioned externally to the rails 8 of the track and two pneumatic hammers 17' positioned internally to the rails 8. Each of the pneumatic hammers 17 and 17' is controlled by its own lowering and raising actuator, respectively actuators 45 for the external pneumatic hammers 17 and actuators 45' for the internal pneumatic hammers 17'. Each of the actuators 45 for the external pneumatic hammers 17 comprises a cylinder 46 fixed, by means of suitable supports, to the longitudinal beam 2 of the wagon, and a movable rod 47 connected to the striking mass 48 of the relative pneumatic hammer 17.
  • Each of the actuators 45' for the internal pneumatic hammers 17' comprises a cylinder 46' fixed to a bogie 49 running transversely with respect to the longitudinal direction of advancement of the wagon, which is direction S in Fig. 2, and to the longitudinal direction of extension of the rails 8. This bogie 49, which can be similar for example to the bogie for the rotatable clamp described above, is supported by suitable guides 50 integral with the longitudinal beam 2 of the wagon. By means of this transversely movable bogie 49 the internal pneumatic hammers 17' can effectively demolish the stretch of roadbed 10 comprised between the two rails 8. Inside each of the cylinders 46' of each of the actuators 45' runs a rod 47' connected at the bottom to a beam 51 which holds solid the two striking masses 48' of the two internal pneumatic hammers 17'. These pneumatic hammers 17' therefore operate simultaneously and are provided with a central vertical guide made up of a rod 53 connected to the bogie 49 and a cylinder 54 connected to the beam 51. Naturally the number of internal and/or external pneumatic hammers provided in the demolition unit of the present machine could be different from what is illustrated in Fig. 6. It should be noted furthermore that the rails 8 are located in a stretch 55 of railway line with extremely small lateral spaces, for example in proximity to a station platform or in a tunnel.
  • Fig. 7 illustrates a variant of the demolition unit of the present machine. The external pneumatic hammers 17 are identical and operate in the same way with respect to what was previously illustrated in Fig. 6. The internal pneumatic hammers 17' however have the relative striking masses connected to each other by an actuator 52 and each of them is connected at the top to the beam 51 by means of an oscillation pin 57. The cylinders 46' of the two actuators 45' are connected directly to the longitudinal beam 2 of the wagon. To sum up, in this variant the two internal pneumatic hammers 17' manage to operate on the entire width of the roadbed 10 comprised between the rails 8 as a result of their variable inclination, controlled by actuator 52, and of their being fixed with oscillation pins 57 to beam 51.
  • We see below the operation of the present machine. During the operations which will be described below, the equipped wagon 1 moves in the direction S of advancement indicated in Fig. 2. When it becomes necessary to recondition a stretch of roadbed, it is first necessary to release the rails 8 from the sleepers 9 by manual removal of the means 58 fixing one to the other: see Figures 2 and 3 in the attached drawings, in which the fixing means 58 have been removed from the sleepers 9' and 9" located in front of the excavating device 23. In Fig. 3, note in particular the side-walls 59 of the device 23 for excavating and collecting the roadbed material, which advantageously have an overall side-to-side dimension which does not exceed the width of the sleepers 9, 9' and 9". This drawing also schematically illustrates the rotatable clamp 18, the group of pneumatic hammers 17 arranged parallel to the sleepers, according to any of the two forms of embodiment shown in Figs. 6 or 7, and the device 13 for gripping and lifting the rails. The actuators 16 of the device 13 are lowered in such a way that the means 14 of gripping the rails 8 are clamping the latter. These actuators are then retracted upwards so that the rails are temporarily raised from the released sleepers 9' and 9". The sleeper 9", situated at a given moment in the reconditioning process immediately in front of excavating device 23, is grasped by the arms 26 of the rotatable clamp 18, lifted from the roadbed 10 and inclined in a suitable manner so that it can be translated backwards past excavating device 23. Having arrived at its new laying position, in which the bogie 20 of the clamp 18 has travelled backwards substantially over the entire distance permitted by the support 21, the sleeper 9" is counter-inclined so as to make it assume once more the position transverse to the rails 8, and laid in the new position. Simultaneously, in the empty space left by the sleeper 9" for the work of excavating device 23, pneumatic hammers 17 and 17', sliding vertically upwards or downwards, penetrate the roadbed for the depth of lowering required. These pneumatic hammers 17 also break up any rock present in the roadbed and this broken-up rock is collected by excavating device 23 along with the ballast from the roadbed. The part of roadbed 10' situated upline of excavating device 23 (again, see Fig. 2) is lowered by the height required and reconditioned, and therefore the sleepers 9 in that part can be refixed to the rails 8. As mentioned above, all the material collected by the excavating device 23 will be transferred by the conveyor belt 47 to screening means provided on a wagon following wagon 1 where the present reconditioning machine is positioned.

Claims (13)

  1. Machine for reconditioning railway roadbeds, comprising an equipped wagon (1) provided with means (13) suitable for temporarily lifting the rails (8) of a track (7), excavation means (23) suitable for removing the material of the roadbed (10) situated under the lifted track (7) and means (18) of lifting and rotating at least one of the sleepers (9', 9") from the rails (8) of the track (7), characterized in that it comprises at least one unit for demolishing and lowering the roadbed located, with respect to the direction (S) of advancement of the equipped wagon (1), upline of said means (13) of lifting the rails (8) and downline of said excavation means (23), and comprises a plurality of demolition means (17, 17') suitable for breaking up a certain stretch of roadbed (10), both within and outside the rails (8), said demolition means (17, 17') being suitable for acting in the empty space left by the sleeper (9") to be lifted and rotated by said lifting and rotating means (18), and said sleeper to be carried by said means (18) to a new position upline of the excavation means (23) and on the reconditioned and lowered roadbed (10').
  2. Machine according to Claim 1, characterized in that said demolition unit comprises at least one pneumatic hammer (17) positioned externally to each of the rails (8) of the track (7) and one or more pneumatic hammers (17') positioned between the rails (8).
  3. Machine according to Claim 1, characterized in that said demolition means (17, 17') comprise actuators (45, 45') for their lowering and raising, the fixed part (46, 46') of said actuators being integral with the longitudinal beam (2) of the wagon (1).
  4. Machine according to Claim 1, characterized in that said demolition means (17, 17') positioned both internally and externally to the rails (8), are transversely aligned.
  5. Machine according to Claim 2, characterized in that said pneumatic hammers (17') internal to the rails (8) comprise means (49, 52, 57) capable of allowing their displacement at least in a transverse direction with respect to the track (7).
  6. Machine according to Claim 5, characterized in that said pneumatic hammers (17') internal to the rails (8) are connected to a bogie (49) which can run transversely on guides (43) integral with the longitudinal beam (2) of the wagon (1).
  7. Machine according to Claim 5, characterized in that the pneumatic hammers (17') internal to the rails (8) are connected by means of relative oscillation pins (58) to a support beam (51) connected by relative actuator means (45') for lowering and raising to the longitudinal beam (2) of the wagon (1).
  8. Machine according to Claim 7, characterized in that said internal pneumatic hammers (17') are connected to each other by at least one actuator (52) which controls their rotation around said oscillation pins (58) so that they can mutually separate and come together.
  9. Machine according to Claim 1, characterized in that said lifting and rotating means of at least one sleeper (9") of the rails (8) comprises a rotatable clamp (18) connected by at least one lowering and raising actuator (19) to the longitudinal beam (2) of the wagon (1).
  10. Machine according to Claim 9, characterized in that said rotatable clamp (18) is connected at the top with a bogie (20) capable of running longitudinally, by suitable activating means (44), on guides (43) integral with the longitudinal beam (2) of the wagon (1).
  11. Machine according to Claim 9, characterized in that said rotatable clamp (18) comprises at least two arms (26) for gripping the sleeper (9"), connected to each other by an actuator (28) for mutually coming together and separating.
  12. Machine according to Claim 9, characterized in that said actuator (9) comprises a cylinder (31) connected to two rotation means (30, 37) located in said bogie (20), there being housed in said cylinder (31) a sliding rod (30) to whose ends the arms (26) of the clamp (28) are connected.
  13. Machine according to Claim 12, characterized in that said cylinder (31) is connected to an end of a lever (40) carrying at its other end a rotation pin (39) to which is connected an end of a rod (30) movable inside a cylinder (37), said cylinder (37) being connected by a rotation pin (38) to a wall of said wagon (20).
EP12178881.4A 2011-08-04 2012-08-01 Machine for reconditioning railway roadbeds Active EP2554745B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT000088A ITGE20110088A1 (en) 2011-08-04 2011-08-04 Machine for repairing railway tracks

Publications (2)

Publication Number Publication Date
EP2554745A1 EP2554745A1 (en) 2013-02-06
EP2554745B1 true EP2554745B1 (en) 2017-06-21

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EP12178881.4A Active EP2554745B1 (en) 2011-08-04 2012-08-01 Machine for reconditioning railway roadbeds

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EP (1) EP2554745B1 (en)
ES (1) ES2640942T3 (en)
IT (1) ITGE20110088A1 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106223133A (en) * 2016-08-30 2016-12-14 中国铁建大桥工程局集团有限公司 A kind of multifunctional railway maintaining machine electrohydraulic integration machinery
CN106168008A (en) * 2016-08-30 2016-11-30 中国铁建大桥工程局集团有限公司 One has Figure recognition function railway maintenance mechanical-electrical-hydraulic integration machinery
CN106351082A (en) * 2016-08-30 2017-01-25 中国铁建大桥工程局集团有限公司 Multifunctional railway maintenance automated machine
CN106381781A (en) * 2016-08-31 2017-02-08 昆明学院 Automatic sleeper replacing device
CN106223136A (en) * 2016-08-31 2016-12-14 昆明学院 Sprocket calculus automation equipment below a kind of rail
CN106368088A (en) * 2016-08-31 2017-02-01 昆明学院 Automatic machine for replacing sleepers
CN106351089A (en) * 2016-08-31 2017-01-25 昆明学院 Mechanics-electronics-hydraulics-integrated sleeper replacing machine
CN106192626A (en) * 2016-08-31 2016-12-07 昆明学院 Change sleeper automated machine
CN106223134A (en) * 2016-08-31 2016-12-14 昆明学院 A kind of mechanical-electrical-hydraulic integration changes sleeper machine
CN106381780A (en) * 2016-08-31 2017-02-08 南通大学 Automatic sleeper hoisting device
CN106400624A (en) * 2016-08-31 2017-02-15 昆明学院 Sleeper replacement device with four-nut synchronous disassembly and assembly function
CN106381784A (en) * 2016-08-31 2017-02-08 昆明学院 Automatic sleeper replacing device
CN106192627A (en) * 2016-08-31 2016-12-07 昆明学院 Mechanical-electrical-hydraulic integration sleeper replacement device
CN106436505A (en) * 2016-10-11 2017-02-22 昆明学院 Mechanical-electrical-hydraulic integration equipment for sleeper replacement
CN106498815A (en) * 2016-11-05 2017-03-15 昆明学院 It is a kind of that there is swivel block and push-and-pull sleeper integrating device to change pillow machine
CN106337338A (en) * 2016-11-05 2017-01-18 昆明学院 Iintetrated Mechanism of Swivel Block and Mechanical-electrical-hydraulics of Push-and-pull Sleeper
CN106522046A (en) * 2016-11-06 2017-03-22 昆明学院 Mechanical-electrical-hydraulic integrated sleeper replacement device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT948861B (en) 1972-01-14 1973-06-11 Valditerra S Procedure and machine for repairing embankments iron roads
WO1990013710A1 (en) * 1989-05-12 1990-11-15 Crowell James E Tool for tamping ballast and the like
AT400729B (en) * 1990-08-24 1996-03-25 Plasser Bahnbaumasch Franz Machine for replacing the sills of a track
RU2086723C1 (en) * 1993-06-16 1997-08-10 Франц Плассер Банбаумашинен-Индустригезельшафт Мбх Method of and device for reconditioning of railway track ballast layer
DE4329277A1 (en) * 1993-08-31 1995-03-02 Klaus Wiegand Method and apparatus for loosening and compacting the ballast of track installations

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Publication number Publication date
EP2554745A1 (en) 2013-02-06
ES2640942T3 (en) 2017-11-07
ITGE20110088A1 (en) 2013-02-05

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