EP3408450B1 - Verfahren zur verdichtung der schotterbettung eines gleises - Google Patents

Verfahren zur verdichtung der schotterbettung eines gleises Download PDF

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Publication number
EP3408450B1
EP3408450B1 EP16826704.5A EP16826704A EP3408450B1 EP 3408450 B1 EP3408450 B1 EP 3408450B1 EP 16826704 A EP16826704 A EP 16826704A EP 3408450 B1 EP3408450 B1 EP 3408450B1
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EP
European Patent Office
Prior art keywords
power
compaction
ballast
compacting
tool
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
EP16826704.5A
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German (de)
English (en)
French (fr)
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EP3408450A1 (de
Inventor
Josef HOFSTÄTTER
Thomas Philipp
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.)
Plasser und Theurer Export Von Bahnbaumaschinen GmbH
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Plasser und Theurer Export Von Bahnbaumaschinen GmbH
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Publication of EP3408450A1 publication Critical patent/EP3408450A1/de
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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
    • E01B27/13—Packing sleepers, with or without concurrent work on the track
    • 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
    • E01B27/17—Sleeper-tamping machines combined with means for lifting, levelling or slewing the track
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • 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
    • E01B2203/02—Removing or re-contouring ballast
    • E01B2203/028—Alternative ways
    • 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
    • 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
    • E01B2203/127—Tamping devices vibrating the track surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/01—Propulsion of the fluid
    • F17C2227/0128—Propulsion of the fluid with pumps or compressors
    • F17C2227/0135—Pumps
    • F17C2227/0142—Pumps with specified pump type, e.g. piston or impulsive type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/05—Regasification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F17C2265/068—Distribution pipeline networks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/07—Generating electrical power as side effect

Definitions

  • the invention relates to a method for compacting the ballast bed of a track by means of a compacting tool set in vibration, the vibrations introduced into the ballast during the compacting process being recorded as a measure of the compaction of the ballast.
  • a tamping unit for compacting ballast on a track is known.
  • the position of an auxiliary cylinder providing compaction tools is recorded by means of a displacement transducer.
  • the auxiliary cylinder is controlled by a displacement sensor.
  • the vibration amplitude and the vibration frequency of the compaction tools are changed depending on the position of the ballast.
  • auxiliary force of an auxiliary cylinder is shown as a function of an auxiliary path and a code number is defined via the energy consumption. Accordingly, the energy supplied to the ballast via the auxiliary cylinder is considered by this index. This way, however, the energy that is lost in the system is not taken into account.
  • GB 2 451 310A discloses the monitoring of a tamping unit by means of sensors arranged on bearings.
  • the object of the present invention is now to create a method of the type mentioned at the outset, with which improved recognition of the ballast compaction that can be achieved by the compaction tools is possible.
  • the method should be executable with a tamping unit having compacting tools that can be set in vibration, which enables uniform ballast compaction.
  • the object is achieved according to the invention in that a drive power of the compacting tool is measured from a pressure curve of an eccentric drive or an auxiliary drive and this is reduced by the apparent power of the auxiliary drives, after which an active power available at the compacting tool for compacting the ballast is calculated.
  • the features of the invention make it possible—with the advantageous exclusion of constructive energy losses—to register the energy transferred directly into the ballast and thus to obtain a meaningful indicator for achieving optimum ballast compaction.
  • the ballast is not destroyed by excessive compaction and a very disadvantageous lateral flow in the longitudinal direction of the sleeper is reliably ruled out.
  • working devices suitable for ballast compaction can generally be improved in such a way that an exact statement (or code number) with regard to the achievable degree of compaction is possible in each case. This means that an optimal compaction state can be achieved even with different track-bound compaction, tamping and track stabilization machines.
  • the method according to the invention can be carried out by means of a tamping unit in which an acceleration sensor connected to a control unit is arranged on the tamping lever and/or on the compacting tool.
  • a tamping unit 1, shown in simplified form, for tamping ballast 3 of a ballast bed located underneath a track 2 consists essentially of two tamping levers 5, each pivotable about a pivot axis 4. These are each equipped at a lower end 6 with a compacting tool or Tamping tine 7 and connected at an upper end 8 to a hydraulic auxiliary drive 9.
  • Each auxiliary drive 9 is mounted on an eccentric shaft 11 which can be rotated by an eccentric drive 10 .
  • This vibratory oscillations are generated, the over the auxiliary drive 9, the Stopfhebei 5 and the compacting tool 7 are transferred to the ballast 3 to be compacted.
  • An acceleration sensor 13 connected to a control unit 12 is arranged at the lower end 6 of each stuffing lever 5 . Alternatively, this could also be fastened directly to the compaction tool 7 .
  • the acceleration sensor could also be arranged on a compacting tool designed as a track stabilizer and causing the track to vibrate.
  • the vibrations introduced into the ballast 3 by the compaction tools 7 during the compaction process are registered as a measure of the compaction of the ballast.
  • the acceleration forces acting directly on the compacting tool 7 are measured and fed to the control unit 12 as an acceleration signal.
  • the acceleration of the oscillating compaction tool or tamping pick 7 serves as an input variable in the system for determining the compaction quality. Normally, this does not execute a harmonic movement but works in a non-linear operation. The forces are transferred to the gravel 3 in one direction only, it can lead to a lifting of the gravel grains from the pimple areas come. This creates jumps in the force curve that distort the harmonic acceleration signal.
  • a maximum possible degree of compaction can be calculated with the acceleration sensor 13 within a time interval.
  • the information can thus be obtained that the ballast 3 located between the compacting tools 7 has not yet been compacted to a maximum degree corresponding to a specific value of the acceleration signal. If necessary, another tamping process can be initiated. It can also be documented in an advantageous manner that the degree of compaction was produced homogeneously, in particular during a longer tamping section.
  • the compacting tools 7 acting as exciters form an oscillating system with the ballast 3 as a resonator.
  • the resonance of the dynamic system is changed by the compression because the equivalent stiffness of the system changes.
  • the resonance frequency can be evaluated. It would also be advantageous to track the frequency of this resonant frequency.
  • An acceleration signal from the acceleration sensor that is output to the control unit 12 serves as the basis for a harmonic content (OSG) and a power of a fundamental oscillation (LGS). 13.
  • a power density spectrum or the spectral power density indicates the power of a signal in relation to the frequency in an infinitesimal (limit value towards zero) wide frequency band.
  • the acceleration signals are deformed as soon as a load occurs. This is visualized by calculating the power density spectrum and summed up in the range below 50Hz for fundamental power and above 50Hz for harmonic power.
  • the harmonic content is used as a measure of the ballast compaction.
  • the OSG of a harmonic sinusoidal basic acceleration signal is influenced by the non-linear behavior of the feedback (reflection) of the ballast.
  • the harmonic content is referred to as a dimensionless quantity and indicates the extent to which the power of the harmonics is superimposed on the power of the sinusoidal fundamental.
  • time-limited components of the acceleration signal are selected and fed to a calculation routine for the power density spectrum. This calculates the power density spectrum in the frequency band from 5 to 300 Hz.
  • the harmonic content (OSG), which correlates with the existing compaction in the ballast 3, is determined by dividing the power of the harmonics by the power of the fundamental oscillation (LGS). This key figure (OSG) indicates how large the power component of the harmonics is in the overall acceleration signal.
  • a cut-off frequency f1 between the fundamental (LGS) and the harmonic depends on the resonant frequency of the mechanical construction of the tamping unit 1 and is determined by the course of the power density spectrum (PSD).
  • the evaluation of an acceleration signal is described below.
  • the individual measured variables for the additional travel of the compaction tools 7 and their additional time are divided into several time segments.
  • the characteristic values for LGS and OSG are determined for the front and rear compacting tool 7 with respect to a working direction of a tamping machine.
  • the compaction process or the additional movement of the compaction tools 7 can advantageously be ended immediately as soon as the characteristic value OSG has reached a preset value.
  • a drive power of the eccentric drive 10 is used to determine an apparent power. This is measured by means of its pressure profile and the reactive power of the auxiliary drives 9 is deducted, since the power is lost at this point.
  • ballast force is determined using the measured acceleration of the compaction tool 7 .
  • the work process of ballast compaction can be divided into the following sections: immersing, positioning and raising the compaction tool 7. The actual compaction process takes place during the positioning.
  • the grain structure of the ballast 3 is rearranged. In this way, compaction energy is transferred from the compaction tool 7 to the ballast 3 .
  • the energy absorbed in the ballast 3 causes the grain structure to be rearranged and this subsequently leads to a reduction in the pore volume. If the ballast movement is complete below the threshold, the energy absorption of the ballast 3 is reduced. As a result, the forces introduced by the compacting tool 7 are reflected more or the opposite compacting tool 7 is decelerated to a greater extent.
  • the rigidity of Gravel 3 increases with increasing compaction and the proportions in which energy is absorbed in the gravel 3 (damping) decrease. This results in a greater reaction force to an acting force of the compaction tools 7. If good compaction of the ballast is thus achieved, an increased power consumption of the compaction tool 7 can be observed.
  • the measured value representative of the active power (the power absorbed by the ballast) can be obtained in various ways.
  • the drive power can be measured via the torque and the speed of the eccentric drive 10 and the reactive power consumed in the system itself can be subtracted from this.
  • Reactive power arises on the one hand from internal friction losses and flow losses in the hydraulic system and also within the auxiliary drives 9, which also serves as a force-limiting overload protection in the system. If the power limitation is active, more reactive power is consumed.
  • the reactive power can be done by measuring the power in the auxiliary drive 9 .
  • the resulting cylinder force and the speed that the piston rod travels in relation to the auxiliary drive 9 are required for this.
  • the resulting cylinder force can be determined by two pressure sensors in the auxiliary drive 9.
  • a displacement transducer in the hydraulic cylinder can be used to determine of the speed can be used by differentiating the distance once.
  • the reactive power of the auxiliary cylinder is determined by multiplying the measured pressures with the corresponding areas and the speed (differentiated path).
  • the reactive power of the auxiliary drive 9 is also dependent on the auxiliary pressure selected.
  • the total reactive power can be determined during commissioning as a function of speed, additional pressure and apparent power and stored in a multidimensional table in the computer. As a result, only the torque and the speed need to be determined to determine the impact force of the system.
  • the braking torque or torque loss can be determined using special test scenarios.
  • the power that is transferred to the gravel 3 is known at this point.
  • the magnitude of the compression force which is an indication of the compression quality produced depends on the accelerations on the compression tool 7 .
  • a substitute model of the corresponding working device in the case of a tamping machine of the compacting tool 7, is necessary:
  • F hydr (s. 2 ) can either be measured online (by equipping the two chambers of the auxiliary drive 9 with pressure sensors) or calculated using the drive power of the eccentric drive 10. The acceleration a p is recorded by measurement.
  • the speed covered and the path of the compaction tool 7 are necessary for the next calculation step.
  • the acceleration signal is integrated once for the speed and twice for the distance.
  • the energy determined in this way describes the energy absorption of the ballast 3 during the compaction process and indicates a measure of the respective degree of compaction. If the energy input converges towards a specific value, the ballast 3 can no longer be compacted any further.
  • the energy applied to the tamping pick surface and the compaction tools 7 in use is normalized as follows.
  • E pimpleLnorm t 1 A pimple ⁇ n ⁇ ⁇ f gravel ⁇ v pimple t ⁇ German
  • ballast 3 no longer absorbs any more energy and the physical behavior is the same as in the case of rigidity and is used as the E modulus of the ballast.
  • the stiffness which corresponds to the gradient in a force-displacement diagram, indicates the elastic behavior of the ballast 3 .
  • the determination of the modulus of elasticity for the ballast 3 is calculated using a linear regression line with minimization of the square mean.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Discharge Heating (AREA)
EP16826704.5A 2016-01-26 2016-12-29 Verfahren zur verdichtung der schotterbettung eines gleises Active EP3408450B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA34/2016A AT518195B1 (de) 2016-01-26 2016-01-26 Verfahren zur Verdichtung der Schotterbettung eines Gleises sowie Stopfaggregat
PCT/EP2016/002185 WO2017129215A1 (de) 2016-01-26 2016-12-29 Verfahren zur verdichtung der schotterbettung eines gleises sowie stopfaggregat

Publications (2)

Publication Number Publication Date
EP3408450A1 EP3408450A1 (de) 2018-12-05
EP3408450B1 true EP3408450B1 (de) 2023-03-01

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EP16826704.5A Active EP3408450B1 (de) 2016-01-26 2016-12-29 Verfahren zur verdichtung der schotterbettung eines gleises

Country Status (13)

Country Link
US (1) US10914040B2 (ru)
EP (1) EP3408450B1 (ru)
JP (1) JP6961601B2 (ru)
KR (1) KR102564092B1 (ru)
CN (1) CN108603345B (ru)
AT (1) AT518195B1 (ru)
AU (1) AU2016389117B2 (ru)
CA (1) CA3007505C (ru)
DK (1) DK3408450T3 (ru)
EA (1) EA036197B1 (ru)
ES (1) ES2944909T3 (ru)
PL (1) PL3408450T3 (ru)
WO (1) WO2017129215A1 (ru)

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Publication number Priority date Publication date Assignee Title
AT518195B1 (de) * 2016-01-26 2017-11-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren zur Verdichtung der Schotterbettung eines Gleises sowie Stopfaggregat
AT520056B1 (de) * 2017-05-29 2020-12-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Vorrichtung zum Verdichten eines Gleisschotterbetts
AT519738B1 (de) * 2017-07-04 2018-10-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Vorrichtung zum Verdichten eines Gleisschotterbetts
KR102319047B1 (ko) * 2017-11-24 2021-10-29 한정희 철도용 타이 템퍼
AT520698B1 (de) * 2017-12-07 2020-09-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und System zur Belastungsüberwachung eines Stopfaggregates
AT520791B1 (de) * 2017-12-21 2020-08-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren zum Betreiben eines Stopfaggregats einer Gleisbaumaschine sowie Stopfvorrichtung zur Gleisbettverdichtung und Gleisbaumaschine
AT520771B1 (de) * 2017-12-28 2020-08-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren zum Betreiben eines Stopfaggregats einer Gleisbaumaschine sowie Stopfvorrichtung zur Gleisbettverdichtung und Gleisbaumaschine
AT521481B1 (de) * 2018-10-24 2020-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Vorrichtung zum Stabilisieren eines Gleises
AT521798B1 (de) * 2018-10-24 2021-04-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Vorrichtung zum Verdichten eines Schotterbettes
AT522406A1 (de) * 2019-04-11 2020-10-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfpickel und Verfahren zum Stopfen eines Gleises
CN111501436B (zh) * 2020-04-30 2021-12-24 中国铁建重工集团股份有限公司 液压捣固装置
AT524861B1 (de) * 2021-04-12 2022-10-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Maschine zum Stopfen eines Gleises
KR102367598B1 (ko) * 2021-10-20 2022-03-31 한국철도공사 굴삭기 장착형 철도궤도 자갈 다짐기
CN114703703B (zh) * 2022-04-28 2023-01-31 武汉理工大学 一种捣固耙、捣固镐、捣固车以及捣固车的捣固方法
AT18149U1 (de) 2022-09-06 2024-03-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Vorrichtung zum Bestimmen der Beschaffenheit, insbesondere des Verdichtungsgrads, eines Gleisbetts

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AT519738B1 (de) * 2017-07-04 2018-10-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Verfahren und Vorrichtung zum Verdichten eines Gleisschotterbetts

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Publication number Publication date
PL3408450T3 (pl) 2023-06-26
CN108603345B (zh) 2021-02-26
DK3408450T3 (da) 2023-05-30
CA3007505A1 (en) 2017-08-03
ES2944909T3 (es) 2023-06-27
JP6961601B2 (ja) 2021-11-05
AU2016389117A1 (en) 2018-07-05
US10914040B2 (en) 2021-02-09
CA3007505C (en) 2024-05-14
US20190055698A1 (en) 2019-02-21
EA201800294A1 (ru) 2019-01-31
AT518195A1 (de) 2017-08-15
JP2019503441A (ja) 2019-02-07
CN108603345A (zh) 2018-09-28
AT518195B1 (de) 2017-11-15
EA036197B1 (ru) 2020-10-13
KR102564092B1 (ko) 2023-08-04
EP3408450A1 (de) 2018-12-05
WO2017129215A1 (de) 2017-08-03
KR20180103880A (ko) 2018-09-19
AU2016389117B2 (en) 2022-01-27

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