EP3405616B1 - Machine de bourrage à moteurs hydrauliques synchronisés - Google Patents

Machine de bourrage à moteurs hydrauliques synchronisés Download PDF

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Publication number
EP3405616B1
EP3405616B1 EP17701751.4A EP17701751A EP3405616B1 EP 3405616 B1 EP3405616 B1 EP 3405616B1 EP 17701751 A EP17701751 A EP 17701751A EP 3405616 B1 EP3405616 B1 EP 3405616B1
Authority
EP
European Patent Office
Prior art keywords
tamping
hydraulic
hydraulic motor
tools
stuffing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17701751.4A
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German (de)
English (en)
French (fr)
Other versions
EP3405616A1 (fr
Inventor
Jörg Ganz
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
Original Assignee
Matisa Materiel Industriel SA
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Publication date
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Publication of EP3405616A1 publication Critical patent/EP3405616A1/fr
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Publication of EP3405616B1 publication Critical patent/EP3405616B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • E01B27/16—Sleeper-tamping machines
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B27/00—Placing, renewing, working, cleaning, or taking-up the ballast, with or without concurrent work on the track; Devices therefor; Packing sleepers
    • E01B27/12—Packing sleepers, with or without concurrent work on the track; Compacting track-carrying ballast
    • E01B27/20—Compacting the material of the track-carrying ballastway, e.g. by vibrating the track, by surface vibrators
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B2203/00—Devices for working the railway-superstructure
    • E01B2203/12—Tamping devices

Definitions

  • the invention relates to a stuffing machine having a plurality of stuffing units.
  • a stuffing machine with four stuffing units each having stuffing tools arranged one behind the other in the longitudinal direction of the machine for the stuffing of two directly adjacent sleepers.
  • the four stuffing units are transversely movable independently of one another.
  • Each stuffing unit has two tool holders arranged one behind the other in the longitudinal direction of the machine and adjustable in height independently of one another.
  • Each tool holder is dedicated to a cross member and comprises for this purpose a pair of tamping tools and a drive motor of this pair of tools.
  • the resulting tamping machine is universal in the sense that it can be used both on the sections of track with a switch as on sections of track without referrals.
  • the stuffing units are very specific and very different from those of a machine dedicated to the in-line stuffing of the sections of track without switching. Moreover, there is a risk of collision or jamming of the ballast stones between the adjacent tools of the two tool holders of the same pair, especially when the standard spacing between two adjacent track sleepers is reduced.
  • a stuffing machine comprising tamping units located side by side in the transverse direction of the machine to be able to work simultaneously on the entire cross, on both sides of each of the two rails of the railway . It is then expected that the movements of the adjacent stuffing units can be synchronized by a suitable hydraulic circuit.
  • two sets of stuffing are provided for the simultaneous stuffing of two crosspieces, each of the two sets consisting of two pairs of stuffing units, each pair being mounted on a frame pivoting about a vertical axis.
  • the pairs of stuffing units are positioned on either side of the rails, and the stuffing units of each pair are positioned on either side of each crosspiece.
  • a single hydraulic motor is used for the two adjacent tamping units on either side of the rail, the units being connected by transmission means.
  • the invention aims to overcome the drawbacks of the state of the art and to propose a stuffing machine comprising tamping units for in-line stuffing of at least two adjacent crosspieces, reducing the risk of shocks or jamming of ballast stone between adjacent tools.
  • a stuffing machine comprising at least a first stuffing unit comprising first stuffing tools and a first hydraulic motor provided with a first drive shaft driving the first stuffing tools to generate stuffing movements, and a second stuffing unit adjacent to the first stuffing unit and having second stuffing tools and a second hydraulic motor having a second drive shaft driving the second stuffing tools to generate stuffing movements.
  • the first stuffing unit and the second stuffing unit are positioned relative to each other so that in a synchronized work position, the first stuffing unit is used to stuff a first track cross and the second unit tamping device makes it possible to stuff a second track cross member directly adjacent to the first track cross member, for a standard spacing between the first track cross member and the second track cross member.
  • the stuffing machine comprises synchronized supply means of the first hydraulic motor and the second hydraulic motor.
  • the synchronization means may include a control circuit comprising one or more sensors for determining a rotational speed and a position of the first motor and the second motor.
  • One of the first and second motors may be a master motor, and the other a slave motor, the control circuit acting on the supply of the slave motor so that it is synchronized in speed and position with the master motor. .
  • the tamping machine comprises an electronic control circuit synchronized supply means, comprising one or more sensors for determining an instantaneous speed of rotation and / or a position of the first motor shaft and one or more sensors for determining an instantaneous speed of rotation and / or a position of the second motor shaft.
  • the electronic control circuit controls the synchronized supply means according to a servo law so that the instantaneous speed of the second motor shaft follows the instantaneous speed of the first motor shaft.
  • the electronic control circuit controls the synchronized supply means according to a servo law such that the second motor shaft has an absolute angular offset with the first drive shaft less than 10 ° under operating conditions. nominal.
  • the servo can follow a more complex law, involving the angular position or the angular offset, as well as the speed of rotation or acceleration.
  • the first stuffing unit and the second stuffing unit are positioned relative to one another so that the first stuffing tools have a path within a first envelope.
  • the second tamping tools have a path located inside a second geometrical envelope located at a minimum or zero distance from the first geometrical envelope, and the electronic control circuit controls the synchronized feed means according to a law of servitude as under conditions nominal use, the second stuffing tools are at a distance from the first stuffing tools strictly greater than the minimum distance.
  • the first tamping tools comprise one or more front tamping tools, preferably a pair of front picks, and one or more rear tamping tools, preferably a pair of rear picks, positionable on either side of a first one.
  • track cross member and the second tamping tools comprise one or more front tamping tools, preferably a pair of front picks, and one or more rear tamping tools, preferably a pair of rear picks, positionable on either side a second track cross, preferably immediately adjacent to the first track cross.
  • the first stuffing unit and the second stuffing unit are supported by a common stuffing frame movable laterally and / or longitudinally with respect to a frame of the stuffing machine.
  • the tamping machine includes an actuator for moving the second stuffing unit vertically relative to a stuffing box of the stuffing machine between a work position and an off position, independently of the first stuffing unit.
  • the synchronized supply means comprise a common hydraulic synchronized supply circuit of the first hydraulic motor and the second hydraulic motor.
  • the synchronized hydraulic supply circuit comprises at least one main hydraulic pump for supplying the first hydraulic motor and the second hydraulic motor.
  • the main hydraulic pump can advantageously be connected in series with the first hydraulic motor and the second hydraulic motor, the first hydraulic motor being connected between a delivery port of the main hydraulic pump and the second hydraulic motor.
  • the synchronized supply hydraulic circuit may further comprise a synchronizing hydraulic pump, and at least one movable synchronizing valve at least between a supply position in which a delivery port of the synchronization pump is connected between the first hydraulic motor and the second hydraulic motor and an isolation position in which the hydraulic timing pump is isolated.
  • the synchronized supply means comprise a first hydraulic circuit comprising a first feed pump of the first hydraulic motor and a second hydraulic circuit independent of the first hydraulic circuit and comprising a second feed pump of the second motor. hydraulic.
  • the second hydraulic circuit may further comprise a synchronizing hydraulic pump, and at least one movable synchronizing valve at least between a supply position in which a discharge port of the synchronization pump is connected between the hydraulic synchronization pump and the second hydraulic motor and an isolation position in which the synchronizing hydraulic pump is isolated.
  • a tamping machine 10 for padding underneath a railroad track having track sections 12 consisting of two rails set on sleepers resting on ballast, and track sections comprising a track apparatus, including a referral.
  • the stuffing machine 10 comprises a machine frame 28 resting on rolling trains 30 with one or more axles, rolling on the track, frame which supports a first row 32 of at least two, and preferably at least four units. 34 and a second row 36 of at least two, and preferably at least four tamping units 38 located, in a direction of travel 100 of the machine, behind the first row 32 , and directly adjacent to the first row 32 , row 32.
  • the distance between the two rows 32 , 36 is such that in a working position illustrated on the figure 2 , the tamping units 34 of the first row 32 allow the tamping of the ballast under a first cross 18 of the railway, in front and behind the first cross 18 , laterally on either side of each of the two rails while the tamping units 38 of the second row 36 allow tamping of the ballast under a second crossbar 20 of the railroad directly adjacent to the first crosspiece 18 , in front and behind the second crossbar 20 , laterally on the side and other of each of the two rows of rails.
  • each tamping unit 34 of the first row 32 comprises front 40 and rear tamping tools 42 constituted here respectively by a pair of front picks 40 and a pair of 42 positionable rear picks.
  • each stuffing unit 38 of the second row 36 includes front 44 and rear stuffing tools 46 constituted here respectively by a pair of front picks 44 and a pair of rear picks 46 positionable on either side of the second crossbar 20.
  • Each tamping unit 34 of the first row is associated with a stuffing unit 38 directly adjacent to it from the second row 36 32 , to form a subset, in this case a pair, of associated adjacent stuffing units. 48 , supported by a common stuffing frame 50 ( figure 1 ) movable relative to the machine frame 28 at least laterally, that is to say in a general direction perpendicular to the rails, and where appropriate also longitudinally, that is to say in the general direction of the rails.
  • the lateral movement of each stuffing frame 50 can be either a translation movement relative to the machine frame 28 , or, as illustrated in FIG.
  • FIG. figure 1 a pivoting movement about a pivot axis 52 fixed relative to the machine frame 28 and parallel to a longitudinal direction 100 of the machine frame 28 , that is to say a plane movement composed of one or more rotations about axes parallel to the longitudinal direction of the machine frame 28.
  • the same is true of the possible longitudinal movements of each stuffing frame 50 with respect to the machine frame 28 which are, in the embodiment of FIG. figure 1 , produced by translation along the pivot axis 52 , but could be made by any other means. These movements are, in known manner, performed by actuators, not shown in the figures.
  • each stuffing unit 34 of the first row is provided with additional actuators ( figure 2 ) for adjusting the positioning of the tamping tools 40 , 42 in the longitudinal direction or in the lateral direction relative to the corresponding tamping frame 50 .
  • additional actuators may be provided to adjust the positioning of the tamping tools 44 , 46 of the second row tamping units. It is thus possible to obtain, by combining the adjustment possibilities of the stuffing frame 50 with respect to the machine frame 28 and the possibilities of individual adjustment of the tamping units 34 and possibly 38 with respect to the stuffing frame 50 , great freedom of positioning of the stuffing units 34 , 38 , as well as large deflections.
  • Each pair 48 of associated tamping units 34 , 38 is provided with an actuator for vertically retracting the tamping unit 34 from the first row 32 from the working position to an off position and deploying it from the off position. at the working position.
  • each pair of associated tamping units 48 is provided with a retraction actuator for retracting the tamping unit 38 of the second row 36 from the working position to an off position and deploying it from the position out of order at the working position.
  • the retracting movements of the stuffing units of the first row 32 and the second row 36 may be carried out by upward translation, upward tilting or any type of movement allowing each stuffing unit to be moved vertically away from the way.
  • the retraction actuators assigned to the second row 36 of stuffing units 38 are independent of those of the first row 32 , in the sense that it is possible to retract a stuffing unit 38 from the second row 36 into the position when the associated jam unit 34 of the first row 32 remains in the working position, as shown in FIG. figure 3 .
  • the proximity of the two rows 32 , 36 of tamping units 34 , 38 is dictated by the spacing between the cross rails, and, in practice, may cause risks of collision or jamming stones between the tools or tools rear tamping 42 of each stuffing unit 34 of the first row 32 and the stuffing tool (s) before 44 of the directly adjacent stuffing unit 38 of the second row 36 , especially if the movements of the stuffing tools 42 , 44 are not synchronized.
  • FIG. 2 there is illustrated the geometric envelope 70 of the clearance of the rear tamping tools 42 of a tamping unit 34 of the first row 32 and the geometric envelope 72 of clearance of the adjacent tamping tools 44 of a tamping unit 38 of the second row 36.
  • these envelopes 70 , 72 are tangent, or even interpenetrate: if the stuffing tools 42 , 44 were trained without synchronization, they would be likely to clash or get stuck in the presence of a stone from the ballast. Such a situation is avoided by synchronizing the movement of the tamping tools 42, 44, so that when one is near the tangent plane 74 between the two envelopes 70, 72, the other is away.
  • it is desired that the adjacent tamping tools 42, 44 are simultaneously in their extreme forward position and simultaneously in their rearmost position, and move in phase.
  • each tamping unit 34 of the first row 32 is vertically adjustable independently of the jamming unit 38 associated with the second row 36 , it is very complex to consider a drive by a common motor.
  • Each tamping unit 34 , respectively 38 is thus provided with its own drive motor 76 , 78 respectively, comprising a motor shaft 80 , respectively 82 , for driving the front and rear stuffing tools 40 , 42 , respectively 44 , 46 in the oscillating stuffing movement (cf. figure 5 ).
  • synchronization means are provided between the motor 76 of each stuffing unit 34 of the first row 32 and the motor 78 of the stuffing unit 38 associated with the second row 36 , while the motor shafts 80 , 82 are not mechanically linked.
  • a hydraulic circuit 83 connecting in series a first hydraulic motor 76 to generate oscillations of the tamping tools 40 , 42 of a first tamping unit 34 of the first row 32 , a second hydraulic motor 78 to generate oscillations of the tamping tools 44 , 46 of the second stuffing unit 38 adjacent to the first stuffing unit 34 and belonging to the same pair 48 , and a main hydraulic pump 84 for supplying the first hydraulic motor 76 and the second hydraulic motor 78. It is shown here the first motor 76 in series between the main hydraulic pump 84 and the second motor 78 , but the reverse arrangement is also possible.
  • the two hydraulic motors 76 , 78 are volumetric in the sense that their rotational speed is a function, preferably linear or quasi-linear flow. Since the hydraulic motors 76 , 78 are connected in series, a volume of oil from the main hydraulic pump 84 and passing through the first motor 76 also passes through the second motor 78 , to the losses. Or losses due to hydraulic leaks in the hydraulic motor 76 closest to the main hydraulic pump are not negligible, and can reach for example, to fix ideas, 5 to 10% of the volume passing through. As a result, to maintain synchronization between the two hydraulic motors 76 , 78 , it is necessary to supplement the supply of the hydraulic motor 78 farthest from the main hydraulic pump 84 , namely the second motor in our example. For this purpose, a synchronizing hydraulic pump 86 is connected, via a synchronization valve 88 , in parallel with the hydraulic motor 78 furthest from the main hydraulic pump 84.
  • An electronic control circuit 90 of the feed hydraulic circuit 83 includes a microcontroller 92 for controlling the synchronization valve 88 so that the rotation of the hydraulic motor 78 farthest from the main hydraulic pump 84 is slaved to the rotation of the motor 76 is the closest to the main hydraulic pump 84.
  • a microcontroller 92 for controlling the synchronization valve 88 so that the rotation of the hydraulic motor 78 farthest from the main hydraulic pump 84 is slaved to the rotation of the motor 76 is the closest to the main hydraulic pump 84.
  • One or more rotation sensors 94 connected to the microcontroller 92 make it possible to determine at least the instantaneous speed, and preferably also the angular position of the drive shaft 80 of the master motor 76.
  • one or more connected rotation sensors 96 the microcontroller 92 can determine at least the instantaneous speed, and preferably also the absolute angular position of the motor shaft 82 of the slave motor 78.
  • the microcontroller 92 compares the values thus determined and deduces if the slave motor 78 is late and must be accelerated, or is in advance and must be slowed down.
  • the timing valve 88 is positioned to connect a discharge port of the timing pump 86 to the supply port of the slave hydraulic motor 78 on the link between the the master motor 76 and the slave hydraulic motor 78.
  • the synchronization pump 86 then delivers an oil flow that is added to that of the main hydraulic pump 84 and accelerates the rotation of the slave motor 78.
  • the synchronization valve 88 is positioned to isolate the synchronization pump 86 , which has the immediate effect of slowing down the slave motor 78 due to losses in the master motor 76.
  • the master motor 76 is what was referred to above as the first motor, namely the motor driving the jamming unit 34 of the first row 32 , the slave motor 78 being the one driving the adjacent stuffing unit 38 of the second row 36.
  • An optional isolation valve 98 may be provided between the master motor 76 and the slave motor 78 , to isolate the slave motor 78 and limit power consumption, when the corresponding stuffing unit 38 is out of order Alternatively, it is possible, in the absence of such a bypass valve 98 , to continuously supply the slave motor 78 , even when the corresponding stuffing unit 38 is in the retracted off position.
  • the operating mode with slaved control of the rotation of the slave motor 78 with respect to the master motor 76 is used at least when the two rows of stuffing units 32 , 36 are used in parallel, therefore in the sections of track without track apparatus.
  • the synchronizing hydraulic pump 86 is dimensioned so as to be able to compensate more than the expected losses in the master motor 76 , for example with a nominal flow rate that is strictly greater than a nominal leakage rate of the master motor 76 , preferably greater than 1.5 times the nominal leakage rate of the master motor 76 , and preferably less than 2 times the nominal leakage rate of the master motor 76.
  • the synchronization valve 88 must have a response time adapted to the desired control .
  • the synchronizing hydraulic pump 86 is isolated and can idle or be stopped. If the isolation valve is present, it is also possible to completely isolate the slave motor 78.
  • the master motor 76 can drive the stuffing unit 38 , the slave motor 76 then driving the stuffing unit 34.
  • two independent hydraulic circuits 83 , 183 can be provided , one for supplying the master motor 76 with a positive displacement pump 84 , the other for supplying the slave motor 78 with a positive displacement pump.
  • main 184 and a synchronizing hydraulic pump 186 connected, via a timing valve 188 , in parallel with the main hydraulic pump 184.
  • An electronic control circuit 90 of the feed hydraulic circuit 183 includes a microcontroller 92 for controlling the synchronization valve 188 so that the rotation of the slave motor 78 is slaved to the rotation of the master motor 76.
  • the stuffing machine may further comprise more than two rows of stuffing tools.
  • the tamping unit 38 may be modified, if necessary, to allow simultaneous jamming of two or more sleepers, so that a pair 48 of associated stuffing units 34 , 38 and attached to a common stuffing frame 50 is capable of in-line jamming of more than two sleepers, and retains the possibility, after retracting the stuffing units 38 , of tamping the ballast in a section of track with switchgear using the stuffing units 34 of the first row 32.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP17701751.4A 2016-01-21 2017-01-20 Machine de bourrage à moteurs hydrauliques synchronisés Active EP3405616B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1650464A FR3047016B1 (fr) 2016-01-21 2016-01-21 Machine de bourrage a moteurs hydrauliques synchronises
PCT/IB2017/050306 WO2017125888A1 (fr) 2016-01-21 2017-01-20 Machine de bourrage à moteurs hydrauliques synchronisés

Publications (2)

Publication Number Publication Date
EP3405616A1 EP3405616A1 (fr) 2018-11-28
EP3405616B1 true EP3405616B1 (fr) 2019-11-20

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Application Number Title Priority Date Filing Date
EP17701751.4A Active EP3405616B1 (fr) 2016-01-21 2017-01-20 Machine de bourrage à moteurs hydrauliques synchronisés

Country Status (6)

Country Link
US (1) US11072891B2 (zh)
EP (1) EP3405616B1 (zh)
CN (1) CN108699779B (zh)
ES (1) ES2842823T3 (zh)
FR (1) FR3047016B1 (zh)
WO (1) WO2017125888A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3020073B1 (fr) * 2015-07-27 2017-01-13 Matisa Materiel Ind Sa Procede de renouvellement de voies ferrees et dispositif pour sa mise en oeuvre
FR3047016B1 (fr) * 2016-01-21 2019-09-06 Matisa Materiel Industriel S.A. Machine de bourrage a moteurs hydrauliques synchronises
CN109778609A (zh) * 2019-01-25 2019-05-21 中国铁建高新装备股份有限公司 一种多功能捣固车及其作业方法
CN113756849B (zh) * 2021-09-01 2024-02-09 中煤科工开采研究院有限公司 一种全向移动液压支架控制方法

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AT315227B (de) * 1969-08-08 1974-05-10 Plasser Bahnbaumasch Franz Stopfwerkzeug für Gleisstopfmaschinen
AT345325B (de) * 1975-06-20 1978-09-11 Plasser Bahnbaumasch Franz Gleisstopfmaschine, insbesondere gleisstopf- und nivelliermaschine
AT339358B (de) * 1974-05-09 1977-10-10 Plasser Bahnbaumasch Franz Antriebs- und steuereinrichtung fur vibrier- und verstellbare werkzeuge einer gleisbearbeitungsmaschine, insbesondere fahrbare gleisstopfmaschine
AT339360B (de) * 1975-08-25 1977-10-10 Plasser Bahnbaumasch Franz Fahrbare gleisstopfmaschine zum unterstopfen der querschwellen eines gleises
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Also Published As

Publication number Publication date
ES2842823T3 (es) 2021-07-14
EP3405616A1 (fr) 2018-11-28
WO2017125888A1 (fr) 2017-07-27
US20190032282A1 (en) 2019-01-31
FR3047016A1 (fr) 2017-07-28
FR3047016B1 (fr) 2019-09-06
CN108699779B (zh) 2020-11-03
US11072891B2 (en) 2021-07-27
CN108699779A (zh) 2018-10-23

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