EP1233108B1 - Hebe- und Absenkmechanismus für eine Schotterstopfeinheit - Google Patents

Hebe- und Absenkmechanismus für eine Schotterstopfeinheit Download PDF

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Publication number
EP1233108B1
EP1233108B1 EP02356027A EP02356027A EP1233108B1 EP 1233108 B1 EP1233108 B1 EP 1233108B1 EP 02356027 A EP02356027 A EP 02356027A EP 02356027 A EP02356027 A EP 02356027A EP 1233108 B1 EP1233108 B1 EP 1233108B1
Authority
EP
European Patent Office
Prior art keywords
tamping
connecting rod
tamping unit
crank
jointed
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.)
Expired - Lifetime
Application number
EP02356027A
Other languages
English (en)
French (fr)
Other versions
EP1233108A1 (de
Inventor
Sandri M. Sartori
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.)
Societe des Anciens Etablissements Lucien Geismar SAS
Original Assignee
Societe des Anciens Etablissements Lucien Geismar SAS
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 Societe des Anciens Etablissements Lucien Geismar SAS filed Critical Societe des Anciens Etablissements Lucien Geismar SAS
Publication of EP1233108A1 publication Critical patent/EP1233108A1/de
Application granted granted Critical
Publication of EP1233108B1 publication Critical patent/EP1233108B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the present invention relates, in general, to the railway track ballast stuffing. More specifically, this invention relates to a mechanism ensuring the movements of up / down of the tamping head, between a high position and a low position.
  • tamping In the railway sector, it is necessary to consolidate tracks by stalling the sleepers by a process called tamping. This one consists in making the ballast penetrate under the sleepers, by means of devices called tamping units, which are actually vibrating grippers. These are forced into the ballast, on either side of a sleeper, making them vibrate at a determined frequency close to the natural frequency of the ballast, and imposing a closing movement on the pliers which forces the nesting of the ballast under the sleeper.
  • the tamping head that is to say the part fitted with vibrating tools driven into the ballast, is mounted mobile vertically, between a high position and a low position.
  • the high position of the tamping head allows the tools to clear the lower parts of the railway clearance gauge for the tamping machine.
  • the low position allows the tamping head to compact the ballast, under the sleepers.
  • This lower position is adjustable, depending on the type of railway sleeper stuff; the lower position is adjusted so as to position the free bottom end of the tamping unit tools about 15 mm in below the sleepers.
  • FIGS 1 and 2 of the accompanying schematic drawing show a tamping unit with design up / down mechanism current, as disclosed in principle by the documents GB 968697 A and US 2926617 A, Figure 1 being a front view and the figure 2 a side view.
  • the tamping unit comprises a vertical frame 1, provided a vertical linear guide 2, on which is mounted a head support stuffing 3, which carries the stuffing head 4 proper.
  • On this head 4 are articulated symmetrically, around respective axes 5 and 6 parallel and horizontal, two tool holders 7 and 8 respectively equipped with stuffing 9 and 10, in their lower parts.
  • a motorized device with eccentric 11, carried by the central part of the tamping head 4, ensures the vibration of tools 9 and 10.
  • the respective upper ends of the two tool holders 7 and 8 are joined by a hydraulic clamping cylinder 12, arranged horizontally.
  • Another hydraulic cylinder 13, arranged vertically, ensures the up / down movements of the tamping head 4.
  • the end lower of the jack 13 is linked to the lower cross member of the chassis 1, while its upper end is linked to the stuffing head support 3, to vertically move this support 3 along the linear guide 2.
  • the stroke of the hydraulic cylinder 13 is here indicated in C, and it corresponds to the difference between the high position and low position of tamping tools 9 and 10 (see in particular at the bottom of figure 1).
  • the maximum size in tamping unit height is dependent on the extended length of the cylinder hydraulic 13. This space is currently large, which poses including security concerns.
  • the machine has a platform located above the tamping unit chassis, platform on which to stand the operator to hydraulically and mechanically connect the tamping with a lifting device, such as a hydraulic shovel, used on the construction site.
  • the platform being located about 2 meters above the ground, it there is a greater or less risk of the operator falling and being injured serious.
  • a mechanism for up / down which includes a hydraulic cylinder arranged so substantially vertical, one end of the jack being articulated on the chassis of the tamping unit, and the other end of the jack being articulated at a point intermediate of a connecting rod, which has a first end articulated on a horizontal axis to a crank.
  • the second end of the connecting rod is articulated on the frame of the tamping unit.
  • the crank is mounted swivel on the tamping head support, this crank extending towards the bottom, from its hinge axis at the first end of the connecting rod, direction of the top of the tamping head support on which it is articulated.
  • the present invention aims to eliminate all of the drawbacks previously exposed, and it therefore aims to significantly reduce the overall height of the up / down mechanism, therefore the size of the tamping unit itself, so as to eliminate the risks of accidents incurred by the operator, while maintaining the race vertical currently performed by the tamping head.
  • the invention also aims to significantly increase the yield of such machine, by doubling the up / down speeds of the tamping unit, while maintaining the hydraulic flow currently supplied to the cylinder down up.
  • the invention aims to reduce mechanical stresses especially the crank, when the stuffing head enters the ballast, while reducing noise pollution during operation.
  • the invention as the subject of the appended claim 1, essentially relates to a mechanism up / down for ballast tamping unit, of the kind specified in introduction, mechanism which comprises a hydraulic cylinder so arranged substantially vertical, one end of which is hinged to the chassis of the unit tamping, and the other end of which is articulated at an intermediate point a connecting rod, which has a first hinged end, on an axis horizontal, with a crank, this mechanism being characterized in that the second end of the connecting rod is articulated, on a horizontal axis, to the support of tamping head, while the crank is pivotally mounted on the chassis the tamping unit, around a horizontal axis located on a vertical side of this frame.
  • the up / down mechanism for the tamping unit of ballast, object of! invention uses a hydraulic cylinder whose stroke is mechanically amplified by a connecting rod and crank device, combining with the vertical linear guide of the tamping head support.
  • the crank provides rotary guidance of the connecting rod at one of its ends.
  • the other extremity of the connecting rod, being articulated to the tamping head support, ensures the maintenance and the vertical displacement of said head, this other end being guided vertically by the vertical guide of the tamping head support.
  • the stroke of the head padding is approximately equal to twice the cylinder stroke.
  • the invention makes it possible to reduce considerably the stroke, therefore the deployed length, of the cylinder actuation of the up / down movement, which makes it possible to modify radically the configuration of the tamping unit, reducing considerably its size, especially in height, and with for consequence of a significant increase in ascent / descent speeds, thanks to the amplification of the cylinder stroke.
  • the solution of this invention also makes it possible to reduce the total height of the entire mechanism (compared to the production of document CH 285054 A) by the choice of a lateral positioning of the crank, vis-à-vis the chassis the tamping unit.
  • the invention practically makes it possible to double the speeds of ascent and descent of the tamping head and, therefore, significantly increase the tamping machine performance.
  • the solution provided by the present invention is also simple and economic.
  • the mechanism itself is particularly simple, since it only requires the addition of a connecting rod and a crank, while that the length of the cylinder is reduced.
  • the exterior size and weight of the stuffing equipment are reduced, while the platform is removed upper, its guardrails and its access ladder.
  • the increase in machine efficiency, obtained by the mechanism amplifier of the cylinder stroke, also represents an economic gain important.
  • the solution of the present invention provides during operation a reduction in mechanical stress, and a reduction in emissions sound.
  • the crank is subjected to a tensile force (and no more than compression), which eliminates buckling of the crank in this phase where the mechanical stresses are the strongest.
  • the crank has a single movable joint, this crank being mounted between a fixed frame and the connecting rod, which makes it perfectly stable and keeps it away vibrating elements, resulting in a significant reduction in shock and noise.
  • the object of the invention solution thus provides a significant improvement, by a judicious arrangement of the crank and its joints.
  • FIGS. 3 to 6 a tamping unit is shown, of which generally known elements are designated by the same references numerical than those of Figures 1 and 2.
  • this tamping unit always includes a vertical frame 1, provided with a vertical linear guide 2 on which a head support is mounted tamping 3, which carries the tamping head 4.
  • the ascent / descent mechanism generally designated by the item 14, consists of a hydraulic cylinder 15, a connecting rod 16 and a crank 17.
  • the hydraulic cylinder 15 arranged substantially vertically, has a cylinder body articulated by its lower end, around an axis horizontal 18, on the lower part of the chassis 1 of the tamping unit, in particularly on a yoke 19 fixed to the lower cross member of the chassis.
  • the stem of the cylinder 15 is articulated by its upper end, around another axis horizontal 20, at a point located substantially mid-length of the connecting rod 16.
  • the connecting rod 16 is articulated by one end, around an axis horizontal 21, on the stuffing head support 3.
  • the other end of the connecting rod 16 is articulated around a horizontal axis 22 at one end of the crank 17.
  • the crank 17 is itself pivotally mounted, about an axis horizontal 23 fixed located on a vertical side of the chassis 1 of the tamping unit.
  • the various horizontal axes 18, 20, 21, 22 and 23, previously mentioned, are all parallel to each other, and perpendicular to the plane of the chassis 1.
  • the actuation of the hydraulic cylinder 15 moves the connecting rod 16, in its vertical plane.
  • the connecting rod 16 is guided, at a end, by the corresponding end of the crank 17 which describes an arc of circle centered on the axis 23.
  • the other end of the connecting rod 16 is guided according to a vertical trajectory, since it is linked to the stuffing head support 3, itself guided by the vertical guide 2, constituted for example by a single central guide column.
  • Figures 3 and 4 show the tamping unit with its stuffing 4 in the high position, the jack 15 being deployed so that the connecting rod 16 is raised.
  • FIG. 3 which thus shows the vertical stroke C of the head of jam 4.
  • the stroke C1 of the jack 15 is substantially equal to half of the stroke C of the tamping head 4.
  • the up / down mechanism 14 ensures the amplification of the movements of the cylinder 15, while providing a compact embodiment of the tamping unit, in particular a reduction in its overall height.
  • Figure 7 shows a tamping machine 24 according to the state of the technical, i.e. with ascent / descent mechanism in accordance with Figures 1 and 2, the machine 24 being used in combination with a hydraulic shovel 25, partially represented by its arm 26.
  • a platform 28 with safety railing 29; the machine 24 also includes, laterally, a ladder 30 for access to the platform 28.
  • the Figure 8 shows a tamping machine 31 with up / down mechanism 14 according to the invention.
  • the total height h of this machine 31 being considerably reduced, a simple side step 32, located at a low height, is sufficient to allow the operator to access the upper part of the machine 31, in order to carry out the mechanical and hydraulic connection operations on the arm 26 of the hydraulic shovel 25. Risk of injury from falling the operator, or electrocution, are thus eliminated.
  • the yield of the machine is optimized by the present invention because by retaining the flow hydraulics of the pump (not illustrated) which here supplies the jack 15, the speeds up and down of the tamping unit are substantially doubled, in comparison with the stuffing machine 24 according to the state of the art,

Claims (3)

  1. Hebe- und Absenkmechanismus des Stopfkopfes zwischen einer oberen und einer unteren Position in einem Schotterstopfaggregat für Bahngleise, insbesondere ein Stopfaggregat, das ein vertikales Chassis (1) umfasst, das mit einer vertikalen linearen Führung (2) ausgestattet ist, auf der ein Träger (3) für den Stopfkopf montiert ist, der den Stopfkopf (4) trägt, welcher mit vibrierenden Stopfwerkzeugen (9, 10) ausgerüstet ist, wobei dieser Hebe- und Absenkmechanismus (14) einen Hydraulik-Zylinder (15) umfasst, der im wesentlichen senkrecht angeordnet ist, dessen eines Ende angelenkt ist (18, 19 - Figur 3) am Chassis (1) des Stopfaggregats und dessen anderes Ende an einem Zwischenpunkt (20) eines Zwischenglieds (16) angelenkt ist, die ein erstes Ende mit Gelenkverbindung, um eine horizontale Achse (22), an einer Kurbel (17) besitzt, dadurch gekennzeichnet, dass das zweite Ende des Zwischenglieds (16) eine Gelenkverbindung, um eine horizontale Achse (21), mit dem Träger (3) des Stopfkopfes hat, während die Kurbel (17) schwenkbar am Chassis (1) des Stopfaggregats montiert ist, und zwar um eine horizontale Achse (23), die sich an einer vertikalen Fläche dieses Chassis (1) befindet.
  2. Hebe- und Absenkmechanismus nach Anspruch 1, dadurch gekennzeichnet, dass ein Ende des Zylinders (15) an dem Zwischenpunkt (20) im wesentlichen in der Mitte der Länge des Zwischenglieds (16) so angelenkt ist, dass der Hub (C) des Stopfkopfes (4) zwischen dessen oberer und dessen unterer Position annähernd dem doppelten Hub (C1) des Zylinders (15) entspricht.
  3. Hebe- und Absenkmechanismus nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Zylinder (15) an seinem oberen Ende eine Gelenkverbindung mit dem Zwischenglied (16) hat, wobei das untere Ende des Zylinders (15) eine Gelenkverbindung (bei 18) mit dem unteren Teil (19) des Chassis (1) des Stopfaggregats hat.
EP02356027A 2001-02-14 2002-02-13 Hebe- und Absenkmechanismus für eine Schotterstopfeinheit Expired - Lifetime EP1233108B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0102009 2001-02-14
FR0102009A FR2820764B1 (fr) 2001-02-14 2001-02-14 Mecanisme de montee/descente pour unite de bourrage de ballast

Publications (2)

Publication Number Publication Date
EP1233108A1 EP1233108A1 (de) 2002-08-21
EP1233108B1 true EP1233108B1 (de) 2003-09-24

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Application Number Title Priority Date Filing Date
EP02356027A Expired - Lifetime EP1233108B1 (de) 2001-02-14 2002-02-13 Hebe- und Absenkmechanismus für eine Schotterstopfeinheit

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EP (1) EP1233108B1 (de)
AT (1) ATE250691T1 (de)
DE (1) DE60200039T2 (de)
FR (1) FR2820764B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031734A (zh) * 2010-12-15 2011-04-27 山东申普交通科技有限公司 小型液压自动捣固机及智能控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT521850A1 (de) 2018-10-24 2020-05-15 Plasser & Theurer Export Von Bahnbaumaschinen Gmbh Gleisbaumaschine und Verfahren zum Unterstopfen von Schwellen eines Gleises
CN112962365A (zh) * 2021-02-07 2021-06-15 伯恩重工机械(苏州)有限公司 一种便携式内燃捣固镐

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH285054A (fr) * 1950-04-06 1952-08-31 Const Mecaniques Sa Renens Machine à bourrer le ballast des voies ferrées.
US2926617A (en) * 1955-05-31 1960-03-01 Kershaw Mfg Company Inc Ballast tamping apparatus
AT247898B (de) * 1960-03-07 1966-06-27 Plasser Bahnbaumasch Franz Gleisstopfmaschine
IT213739Z2 (it) * 1987-07-01 1990-01-22 Bozzurra Fernando Gruppo rincalzatore leggero per assestamento massicciata ferroviaria

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102031734A (zh) * 2010-12-15 2011-04-27 山东申普交通科技有限公司 小型液压自动捣固机及智能控制方法

Also Published As

Publication number Publication date
ATE250691T1 (de) 2003-10-15
DE60200039D1 (de) 2003-10-30
DE60200039T2 (de) 2004-07-08
FR2820764B1 (fr) 2004-06-18
FR2820764A1 (fr) 2002-08-16
EP1233108A1 (de) 2002-08-21

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