US20250122674A1 - Tamping unit for tamping sleepers of a track - Google Patents

Tamping unit for tamping sleepers of a track Download PDF

Info

Publication number
US20250122674A1
US20250122674A1 US18/685,343 US202218685343A US2025122674A1 US 20250122674 A1 US20250122674 A1 US 20250122674A1 US 202218685343 A US202218685343 A US 202218685343A US 2025122674 A1 US2025122674 A1 US 2025122674A1
Authority
US
United States
Prior art keywords
tamping
tamping unit
unit according
transmission element
drive
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.)
Pending
Application number
US18/685,343
Other languages
English (en)
Inventor
Florian KEPPLINGER
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
Original Assignee
Plasser und Theurer Export Von Bahnbaumaschinen GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Plasser und Theurer Export Von Bahnbaumaschinen GmbH filed Critical Plasser und Theurer Export Von Bahnbaumaschinen GmbH
Assigned to PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H. reassignment PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KEPPLINGER, Florian
Publication of US20250122674A1 publication Critical patent/US20250122674A1/en
Pending legal-status Critical Current

Links

Images

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
    • E01B27/16—Sleeper-tamping machines
    • E01B27/17—Sleeper-tamping machines combined with means for lifting, levelling or slewing 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
    • 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
    • E01B2203/125—Tamping devices adapted for switches or crossings

Definitions

  • a generic tamping unit is known from AT 304606 B.
  • the respective tamping unit segment comprises four tamping tools for the simultaneous tamping of two adjacent sleepers.
  • two tamping tools are coupled with a vibration drive via a transmission element designed as a pivoting lever.
  • a separate height adjustment of individual tamping tools is not possible.
  • This design enables a space-saving arrangement of the squeezing drives, resulting in a compact design of the tamping unit segment. Additionally, no interlocking of the drives is required.
  • the arrangement of all force-transmitting components in a common plane results in low loads and promotes equalization of the moved masses.
  • the respective transmission element is linked to the vibration drive via a third joint.
  • This articulated connection to the vibration drive provides an additional degree of freedom for the optimal positioning of the respective transmission element.
  • the respective transmission element is rigidly connected with the vibration drive. This can be useful, for example, if each tamping tool is assigned its own vibration drive.
  • Each squeezing cylinder is usefully linked to the assigned tamping tool on the cylinder side and to the assigned transmission element on the piston rod side.
  • the narrower piston rod leaves more space for the arrangement of the transmission element. This arrangement also minimizes the vibration load on the overall system as the larger mass portion of the squeezing cylinder is located near the tilting joint of the assigned tamping tool.
  • the acting mass moment of inertia only leads to low mechanical loads on the bearing points.
  • the respective tamping tool has an upper lever arm and a lower lever arm, with the lower lever arm comprising at least one tamping tine and with the upper lever arm being connected with the assigned transmission element.
  • Respectively opposing tamping tools form a tong-like arrangement that ensures optimum force transmission and an effective squeezing movement.
  • At least one tamping tine is arranged in a tamping tine support that can be tilted upwards. This enables effective treatment of turnouts and crossings. Tilting up individual tamping tines also prevents collisions with obstacles in the track during tamping.
  • Each tamping tool usefully has two tilting tamping tine supports for one tamping tine each, so that either only one tamping tine or both tamping tines can be tilted upwards.
  • the respective tamping unit segment comprises only two tamping tools for tamping a single sleeper of the track.
  • Each tamping unit segment has an optimum geometry and dimensioning for tamping a sleeper. For example, all tamping tines are aligned exactly vertically for a low penetration resistance during a penetration process in a ballast bed.
  • the dimensioning of the squeezing drives is also adjusted to the squeezing distances and squeezing forces to be achieved in an optimum manner.
  • the tamping unit segments arranged one behind the other are arranged in a shared tamping unit frame, with each tamping unit segment being height-adjustable separately by means of an assigned height-adjustment drive.
  • each tamping unit segment being height-adjustable separately by means of an assigned height-adjustment drive. This ensures a high degree of flexibility when treating turnouts and track lines. For example, only individual tamping units are activated to treat a diverging track rail.
  • An improved embodiment of the tamping unit comprises at least two tamping unit segments of identical design. This results in synergy effects in manufacturing and maintenance. Furthermore, different inline tamping units can be combined in a simple manner.
  • FIG. 1 Tamping unit segment in a front view
  • FIG. 4 Inline tamping unit
  • the tamping unit 1 shown in FIG. 1 comprises several tamping unit frames 2 , which are laterally shiftably mounted on a machine frame 3 of a track construction machine not described in more detail. At least one tamping unit segment 4 is arranged in the respective tamping unit frame 2 .
  • the respective tamping unit segment 4 comprises a tool carrier 5 , which is height-adjustably guided in vertical guides of the assigned tamping unit frame 2 . A lowering or lifting movement takes place by means of an assigned height-adjustment drive 6 .
  • the axes of rotation of the three joints 16 , 18 , 20 are arranged at the corners of an isosceles triangle in the side view.
  • the respective squeezing drive 19 is designed as an approximately vertically aligned hydraulic cylinder with a cylinder body 22 (cylinder tube and cover) and an upward-facing piston rod 23 .
  • the lower end of the respective cylinder body 22 is linked to the assigned tamping tool 9 in an articulated manner.
  • a pin with a plain bearing is arranged at the end of the piston rod 23 . This creates an articulated connection with the assigned transmission element 17 via the second joint 18 .
  • the respective transmission element 17 serves as a lever for transmitting a squeezing force from the respective squeezing drive 19 to the assigned tamping tool 9 .
  • the third joint 20 acts as the middle lever joint, which is connected with the assigned vibration drive 21 .
  • the kinematic system consisting of tamping tool 9 , squeezing drive 19 , and transmission element 17 is set into vibration when the vibration drive 21 is active.
  • a vibration drive 21 with an electromagnetic actuator is arranged. In this, an armature is moved back and forth within an electromagnetic or magnetic field at a vibration frequency.
  • the vibration drive 21 is designed as an eccentric drive. With the eccentric drive, the rotational speed of an eccentric shaft 24 determines the vibration frequency.
  • Several eccentric sections are arranged on the respective eccentric shaft 24 .
  • a first section with a first eccentricity is located in the centre between two eccentric shaft bearings. Two sections with a second eccentricity are designed on either side of this.
  • a first eccentric arm 25 which is coupled with one of the opposing tamping tools 9 , is mounted on the first eccentric section.
  • a second eccentric arm 25 is mounted on the two adjacent eccentric sections with two fork-shaped bearings. This second eccentric arm 25 is coupled with the other of the two opposing tamping tools 9 .
  • the alignment of the two eccentric arms 25 and the rotational position of the eccentric sections towards each other is chosen in such a way that vibrational movements with the desired vibration amplitudes in opposite directions occur in the third joints 20 of the connected transmission elements 17 .
  • the length ratio of the upper and lower lever arm 11 , 15 of the respective tamping tool 9 determines the vibration amplitude effective at the tip of the assigned tamping tine 14 according to the lever principle.
  • FIG. 3 schematically shows the kinematic arrangement of a tamping tool 9 with the assigned transmission element 17 , the squeezing drive 19 , and the vibration drive 21 .
  • the arrangement of the opposing tamping tool 9 is symmetrical in structure to the axis of symmetry 26 . As a result, equally large eccentricities on the eccentric shaft 24 result in equally large vibration amplitudes of the opposing tamping tools 9 .
  • An extension of the piston rod 23 causes a tipping movement of the transmission element 17 about the third joint 20 , whereby the first joint 16 is shifted outwards in relation to the swivelling axis 10 .
  • the corresponding shifting path determines the squeezing distance at the tip of the assigned tamping tine 14 according to the lever principle. If the third joint 16 is missing, the tipping movement takes place about an axis of rotation of the vibration drive 21 .
  • FIG. 4 shows a tamping unit frame 2 with three tamping unit segments 4 arranged one behind the other.
  • three sleepers 7 arranged directly one behind the other can be tamped simultaneously during each tamping process.
  • the tamping unit segments 4 can also be shifted in height individually due to the separate bearing in the shared tamping unit frame 2 . This option is useful for avoiding collisions with obstacles or for tamping twin sleepers.
  • the invention comprises further tamping units 1 , which can be assembled in a simple manner due to the narrow design of the tamping unit segments 4 .
  • two tamping unit segments 4 are arranged one behind the other in the respective tamping unit frame 2 , with only the respective front or the respective rear tamping unit segment 4 comprising tamping tine supports 12 , 13 that can be tilted upwards.
  • These tamping unit segments 4 are used in particular in turnouts. All tamping unit segments 4 together serve to efficiently treat a track line, with two sleepers 7 being tamped simultaneously during each tamping process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
US18/685,343 2021-09-30 2022-09-28 Tamping unit for tamping sleepers of a track Pending US20250122674A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ATA50775/2021A AT525075B1 (de) 2021-09-30 2021-09-30 Stopfaggregat zum Unterstopfen von Schwellen eines Gleises
ATA50775/2021 2021-09-30
PCT/EP2022/076991 WO2023052428A1 (de) 2021-09-30 2022-09-28 Stopfaggregat zum unterstopfen von schwellen eines gleises

Publications (1)

Publication Number Publication Date
US20250122674A1 true US20250122674A1 (en) 2025-04-17

Family

ID=83506544

Family Applications (1)

Application Number Title Priority Date Filing Date
US18/685,343 Pending US20250122674A1 (en) 2021-09-30 2022-09-28 Tamping unit for tamping sleepers of a track

Country Status (5)

Country Link
US (1) US20250122674A1 (enExample)
EP (1) EP4409071B1 (enExample)
JP (1) JP2024533797A (enExample)
AT (1) AT525075B1 (enExample)
WO (1) WO2023052428A1 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT528506B1 (de) * 2024-12-19 2026-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat zum Unterstopfen von Schwellen eines Gleises

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899909A (en) * 1959-08-18 Ballast tamping machine
US4744304A (en) * 1986-02-18 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
US4744303A (en) * 1986-02-27 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
GB2243178A (en) * 1990-04-20 1991-10-23 Plasser Bahnbaumasch Franz Unit for tamping three adjacent railway sleepers
US5706734A (en) * 1995-11-22 1998-01-13 Franz Plasser Bahnbaumaschinen Industriegesellschaft M.B.H. Ballast tamping machine, and method of tamping ballast under a track
CN110685198A (zh) * 2018-07-04 2020-01-14 中国铁建高新装备股份有限公司 一种套轨捣固车及相应的作业方法
EP3653789A1 (de) * 2018-11-15 2020-05-20 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. Verfahren und stopfaggregat zum stopfen eines gleises
US20200392671A1 (en) * 2017-12-21 2020-12-17 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping assembly for tamping sleepers of a track

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT304606B (de) * 1968-04-29 1973-01-10 Plasser Bahnbaumasch Franz Gleisstopfwerkzeug-Aggrerat
AT344774B (de) * 1976-06-09 1978-08-10 Plasser Bahnbaumasch Franz Gleisstopfmaschine, insbesondere zum unterstopfen von gleis-weichen
EP0208826B1 (de) * 1985-07-19 1988-10-12 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Stopfaggregat für Gleisstopfmaschine
SU1712514A1 (ru) * 1990-01-08 1992-02-15 Научно-Производственное Объединение По Созданию Новых Машин, Механизмов И Оборудования Для Транспортного Строительства "Трансстроймаш" Путева машина
ATA174097A (de) * 1997-10-14 1999-01-15 Plasser Bahnbaumasch Franz Stopfaggregat
AT520267B1 (de) 2017-08-08 2020-02-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat zum Unterstopfen von Schwellen eines Gleises
AT522456B1 (de) * 2019-10-08 2020-11-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Stopfaggregat zum Unterstopfen von Schwellen eines Gleises
AT523825B1 (de) * 2020-07-03 2021-12-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Maschine und Verfahren mit einem Stopfaggregat
CN112160196A (zh) * 2020-10-21 2021-01-01 中国铁建高新装备股份有限公司 捣固装置及捣固车
CN112176791B (zh) * 2020-10-21 2025-05-13 中国铁建高新装备股份有限公司 一种双枕捣固装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899909A (en) * 1959-08-18 Ballast tamping machine
US4744304A (en) * 1986-02-18 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
US4744303A (en) * 1986-02-27 1988-05-17 Kershaw Manufacturing Co., Inc. Railway track tamping machine
GB2243178A (en) * 1990-04-20 1991-10-23 Plasser Bahnbaumasch Franz Unit for tamping three adjacent railway sleepers
US5706734A (en) * 1995-11-22 1998-01-13 Franz Plasser Bahnbaumaschinen Industriegesellschaft M.B.H. Ballast tamping machine, and method of tamping ballast under a track
US20200392671A1 (en) * 2017-12-21 2020-12-17 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping assembly for tamping sleepers of a track
US11566381B2 (en) * 2017-12-21 2023-01-31 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Tamping assembly for tamping sleepers of a track
CN110685198A (zh) * 2018-07-04 2020-01-14 中国铁建高新装备股份有限公司 一种套轨捣固车及相应的作业方法
EP3653789A1 (de) * 2018-11-15 2020-05-20 Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. Verfahren und stopfaggregat zum stopfen eines gleises

Also Published As

Publication number Publication date
WO2023052428A1 (de) 2023-04-06
EP4409071C0 (de) 2026-04-01
AT525075A4 (de) 2022-12-15
JP2024533797A (ja) 2024-09-12
EP4409071B1 (de) 2026-04-01
EP4409071A1 (de) 2024-08-07
AT525075B1 (de) 2022-12-15

Similar Documents

Publication Publication Date Title
US12385190B2 (en) Tamping unit for tamping sleepers of a track
CN112840080B (zh) 用于捣固轨道的轨枕的捣固机组
US12529192B2 (en) Machine and method with a tamping unit
PL140524B1 (en) Set of tamping tools for a mobile machine used for building railroad tracks
JP7734310B2 (ja) 道床つき固め機のためのタンピングユニット
GB1568847A (en) Railway track tamping machine comprising at least one vertically adjustable tampling init
US4196532A (en) Ballast regulator side plow
CS273312B2 (en) Truck machine for rails' packing, levelling and straightening
US20160273171A1 (en) Railway maintenance machine for track levelling and alignment with the capacity to operate without interruptions in its advance on straight tracks and to operate on track turnouts tamping the diverging track
JP2854158B2 (ja) ３個の枕木の下部を突固める軌道突固め機用の突固めユニット
JPS6245361B2 (enExample)
JP7699651B2 (ja) 軌道のバラスト道床を締め固める道床つき固め機
JP2024533797A (ja) 軌道のまくらぎの下側を突き固めるためのタンピング装置
US20250354338A1 (en) Tamping unit and method for tamping sleepers of a track
GB2096215A (en) Tamping machine with fully asynchronous tamping units
JPH0260802B2 (enExample)
US5862759A (en) Self-propelled machine for stabilizing, by hammering and compacting, tracks laid on ballast
WO2020253235A1 (zh) 含可移动支点横移机构的养护工作装置框架及作业方法
US4355579A (en) Track tamper
JP2024533797A5 (enExample)
JPH0369702A (ja) 横断方向および垂直方向に調整可能な締め固め装置を備えた自走式軌道締め固め機械
CS221264B2 (cs) ) Stroj pro podbíjení příčných pražců koleje

Legal Events

Date Code Title Description
AS Assignment

Owner name: PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN GESELLSCHAFT M.B.H., AUSTRIA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KEPPLINGER, FLORIAN;REEL/FRAME:066517/0068

Effective date: 20240212

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION COUNTED, NOT YET MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED