EP1918458B1 - Dispositif de meulage de profilés avec une bande abrasive en rotation - Google Patents

Dispositif de meulage de profilés avec une bande abrasive en rotation Download PDF

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Publication number
EP1918458B1
EP1918458B1 EP06022880A EP06022880A EP1918458B1 EP 1918458 B1 EP1918458 B1 EP 1918458B1 EP 06022880 A EP06022880 A EP 06022880A EP 06022880 A EP06022880 A EP 06022880A EP 1918458 B1 EP1918458 B1 EP 1918458B1
Authority
EP
European Patent Office
Prior art keywords
lamellae
profile
belt
grinding
grinding belt
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.)
Not-in-force
Application number
EP06022880A
Other languages
German (de)
English (en)
Other versions
EP1918458A1 (fr
Inventor
Frank Mevert
Kurt Sander
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.)
Mevert Maschinenbau & Cokg GmbH
Original Assignee
Mevert Maschinenbau & Cokg 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 Mevert Maschinenbau & Cokg GmbH filed Critical Mevert Maschinenbau & Cokg GmbH
Priority to AT06022880T priority Critical patent/ATE444399T1/de
Priority to EP06022880A priority patent/EP1918458B1/fr
Priority to DE502006004994T priority patent/DE502006004994D1/de
Publication of EP1918458A1 publication Critical patent/EP1918458A1/fr
Application granted granted Critical
Publication of EP1918458B1 publication Critical patent/EP1918458B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
    • E01B31/175—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding using grinding belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/004—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding rails, T, I, H or other similar profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/16—Machines or devices using grinding or polishing belts; Accessories therefor for grinding other surfaces of particular shape

Definitions

  • the invention relates to a device for grinding a profile, in particular a rail intended for rail vehicles, by means of an endlessly circulating in the direction of the main extension of the profile abrasive bands, which can be pressed with an adjustable biasing force against the profile, wherein the abrasive belt by means of a plurality in a molding relative to each other movable, each extending in the longitudinal direction of the profile extending slats against the profile can be applied.
  • Such a device is used for example in track construction in rail processing for maintenance purposes.
  • the grinding process is preceded by a milling, the achievable in this way machining results necessarily require a rework by grinding the tread. Otherwise, chatter marks would be undesirably, especially acoustically noticeable.
  • the DE 41 19 525 A1 also already discloses a device for grinding and leveling the running surface of a railroad track after a repair by build-up welding.
  • the device has a movable pressure shoe, which comes into contact and pressure on the inside of an abrasive belt, and supporting contact bearing, which come, connected to the frame, in pressing on the rail on both sides of the working zone.
  • the travel of the pressure shoe towards the sanding belt under the action of a spring-acting dial is limited by a stop on the active-side orientation of the sanding belt to a straight line passing through the support points of the support bearings on the rail.
  • the grinding belt whose active side is parallel to the direction of the rail, eliminates only the projection of the leveling order metal.
  • JP 2003-053655 A a device for grinding a rail with a running in the longitudinal direction of the rail grinding belt, wherein the abrasive belt is pressed by means of a pressure element on the rail.
  • the device for belt grinding according to the DE 30 20 393 A1 is equipped with a sanding belt and a flat belt arranged between the sanding belt and a support disk.
  • the invention has for its object to provide a way to improve the achievable by means of the device by the grinding surface quality.
  • the processing speed should be increased at the same time.
  • the device is designed such that the lamellae are movable relative to one another, adjacent lamellae enclose a gap, and the shaped body has a guide, by means of which the lamellae are movably arranged in mutually spaced planes.
  • a substantially improved pressure distribution and thus a reduced maximum thermal load is achieved by optimally the grinding belt is acted upon by each blade with the same force.
  • this makes it possible to adapt the abrasive belt to the cross-sectional shape of the profile in an ideal manner and to press against the profile surface accordingly.
  • the lamellae have, for example, a material thickness of between 1 and 3 mm, in particular 2 mm and a gap of less than 1 mm.
  • the amount or timing of the biasing force may be adjustable based on operating conditions and environmental conditions sensed by a controller.
  • the lamellae could also each have a the grinding belt facing, reibmindemde sliding surface. As a result, the wear and at the same time an undesirable heat development are significantly reduced.
  • the lamellae could be arranged perpendicular to the nearest surface area of the profile corresponding to an optional curvature. It is particularly useful, however, when the slats are arranged to be movable in parallel planes, so that by the parallel arrangement a constant gap dimension can be realized independently of a possible relative movement of adjacent slats. At the same time a uniform heat dissipation is ensured.
  • the shaped body has a comb-like guide for the lamellae, by means of which the lamellae are movably arranged in mutually spaced planes, so as to ensure compliance with the required gap size with little effort.
  • the shaped body has a stop arranged in front of or behind the lamellae in the longitudinal direction of the profile, in addition an undesired displacement of the lamellae in the longitudinal direction of the profile is avoided.
  • the erforderiche heat dissipation can be achieved via a corresponding design of the surface in particular by means of cooling fins.
  • a development of the invention in which the device has a cooling device by means of which a coolant flow can be fed into the respective gap between the lamellae is particularly meaningful.
  • the device has a device for ionizing the slats, so as to ensure by appropriate forces of attraction the precipitation of the air-water mixture on the thus ionized lamellae. This not only reduces water consumption, but also ensures uniform wetting of the entire fin surfaces.
  • the lamellae could be elastically deformable, in particular thus yielding, so as to keep the transmittable preload force constant over the cross-sectional width of the profile.
  • it is particularly reliable if one or more lamellae can be acted upon together with the required preload force so as to be able to adjust the preload force in a controlled manner. In particular, so the removal during belt grinding over the entire cross section can be adjusted as needed.
  • each blade could be biased by means of a separate actuating means relative to the profile, so as to realize an active grinding. It is particularly simple, however, when the device comprises a fluidbeaufschlagbaren pressure body for generating the biasing force, which is arranged between the profile end faces of the lamellae and a support surface of the shaped body so as to load each blade with almost matching biasing force due to the uniform pressure distribution of the pressure hull and thereby being able to realize a passive grinding.
  • the molded body can be acted upon in a rapid time sequence with a variable biasing force.
  • the machining quality is improved in the grinding process in a simple manner that the biasing force is not set substantially constant as in the prior art according to the desired Abtrags oriental, but a continuous change between predetermined limits is subjected.
  • this alternating prestressing force chips and particles are not pressed into the surface of the rail and thereby damaged, but the chips and particles automatically come out of the processing zone laterally during the very brief but sufficient phase of the reduced prestressing force.
  • the erosion force is not reduced by the variable biasing force, but rather is improved, which can be attributed to the low heat generation and the improved wear behavior of the abrasive belt.
  • the shaped body can be driven with an oscillating movement, wherein the frequency is dimensioned such that, taking into account the contact surface of the grinding belt with the rail of each surface region of the rail is subjected to both the first and the second biasing force, ie in particular a full machining cycle undergoes the continuously variable biasing force.
  • the device may comprise a compressed air pulsator, by which the pneumatic cylinder driving the shaped body is subjected to a vibration. Due to the separation of functions of the transmission of the biasing force on the one hand and the introduction of the pulsating movement on the other hand, a particularly diverse, almost unlimited adjustability of the respective desired machining program is achieved.
  • a particularly promising modification is also provided by the fact that a sliding element is provided between the grinding belt and the lamellae which, for example, can also be designed to run endlessly around and can be moved to the grinding belt almost without slip.
  • the wear behavior of the abrasive belt, as well as the heat development can be further optimized.
  • an undesirable effect due to the increased in the seam region of the endless abrasive belt abruptly increased material thickness of the abrasive belt and the associated increased resistance upon impact of this interface to the molding can be avoided by the sliding belt is used to compensate for such material thickness differences.
  • the sliding belt can in turn be used as a wear material, so as to concentrate the wear occurring in the relatively inexpensive interchangeable sliding belt.
  • the grinding belt for setting different parallel tracks in different working positions can be fixed transversely to the feed movement of the grinding belt, so that due to the detected degree of wear of the grinding belt a parallel displacement are made transversely to the rail can.
  • continuously changing tracks can be realized, wherein the grinding belt can be moved in an oscillating manner in the transverse direction.
  • the abrasive belt leading pulleys are moved axially transversely to the rail.
  • the abrasive belt is preferably guided by means of a drive roller and at least two pulleys in a horizontal plane, of which at least one guide roller has a plurality of circumferentially arranged groove-shaped recesses, which serves similar to a known tire profile of the intake of liquid due to the belt tension by the deflection of the Abrasive belt can escape.
  • a drive roller and at least two pulleys in a horizontal plane, of which at least one guide roller has a plurality of circumferentially arranged groove-shaped recesses, which serves similar to a known tire profile of the intake of liquid due to the belt tension by the deflection of the Abrasive belt can escape.
  • the device could be designed for stationary processing of rail sections.
  • a modification is particularly advantageous in which the device is equipped with a mobile chassis movable along a rail and can thus be used, for example, as a trailer or in self-propelled operation, following a previous Fräsbearbeitungsvörraum.
  • the processing of the rail is preferably carried out in the opposite direction.
  • a plurality of abrasive belts for simultaneous or alternative use can be provided in the device, wherein for the temporal processing of parallel rails at least two by means of a respective shaped body against the respective profile prestressed abrasive belts are preferably realized.
  • further functional elements of the device can be provided multiple times or even assigned to several abrasive belts at the same time.
  • a common drive can be provided.
  • FIGS. 1 and 2 show a side view and an enlarged front view.
  • the device 1 has an endlessly circulating in the direction of the main extension of the profile 2 sanding belt 3, which is pressed in a horizontal region between two pulleys 4, 5 by means of a plurality of parallel, extending in the longitudinal direction of the profile 2 fins 6 thereto.
  • the slats 6 are arranged vertically movable and undeliverable by means of a pneumatically actuated pressure pad 7 with a biasing force 8 in the direction of the profile 2.
  • the device 1 In order to be able to act on the slats 6 with a variable biasing force 8 and thereby achieve an optimal adaptation of the grinding belt 3 to the profile, individual slats 6 can be acted upon by a different biasing force.
  • the device 1 To avoid a thermal overload of the abrasive belt 3 on the one hand and the fins 6 on the other hand, the device 1, a cooling device 9, through which a flow of coolant into the respective gap 10 between the fins 6 can be fed.
  • the slats 6 are additionally equipped with recesses 11, through which a lateral heat dissipation can be realized.
  • various parallel tracks are provided transversely to the direction of rotation 12 of the sanding belt 3.
  • the device 1 is moved by means of a chassis, not shown, on the rail 2 in the feed direction 14, so that there is a machining in reverse grinding.
  • the apparatus 1 further has a catching device 15 arranged in the feed direction 14 behind the deflection roller 4 for abrasive particles and released grinding emissions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Claims (16)

  1. Dispositif (1) de meulage d'un profilé (2), en particulier d'un rail destiné à des véhicules ferroviaires, au moyen d'un ruban sans fin de meulage (3) qui est orienté dans la direction de l'extension principale du profilé (2) et qui peut être repoussé contre le profilé (2) par une force réglable de précontrainte (8),
    le ruban de meulage (3) pouvant être appliqué contre le profilé (2) au moyen de plusieurs lamelles (6) qui s'étendent chacune dans un corps façonné dans le sens de la longueur du profilé (2),
    caractérisé en ce que
    les lamelles (6) peuvent se déplacer les unes par rapport aux autres,
    en ce que des lamelles voisines (6) délimitent un interstice (10) et
    en ce que le corps façonné présente un guide par lequel les lamelles (6) sont disposées de manière à pouvoir se déplacer dans des plans mutuellement espacés.
  2. Dispositif (1) selon la revendication 1, caractérisé en ce que les lamelles (6) sont disposées de manière à pouvoir se déplacer dans des plans parallèles.
  3. Dispositif (1) selon les revendications 1 ou 2, caractérisé en ce que le corps façonné présente pour les lamelles (6) une butée disposée dans le sens de la longueur du profilé (2) en amont et/ou en aval des lamelles (6).
  4. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que le dispositif présente un système de refroidissement (9) qui permet d'amener un écoulement de fluide de refroidissement dans chacun des interstices (10) situés entre les lamelles (6).
  5. Dispositif (1) selon la revendication 4, caractérisé en ce que comme fluide de refroidissement, un mélange d'air et d'eau peut être amené dans chaque interstice (10) situé entre les lamelles (6).
  6. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que le dispositif (1) présente un système d'ionisation des lamelles (6).
  7. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que la force de précontrainte nécessaire peut être appliquée sur certaines des lamelles (6) ou sur toutes les lamelles.
  8. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que pour appliquer la force de précontrainte, le dispositif (1) présente un corps de poussée sur lequel est appliqué un fluide et qui est disposé entre les côtés frontaux, non tournés vers le profilé, des lamelles (6) et une surface d'appui du corps façonné.
  9. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que des forces variables de précontrainte (8) peuvent être appliquées successivement sur le corps façonné (6).
  10. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que le corps façonné est disposé de manière à pouvoir se déplacer dans un guide et peut être approché du rail (2) au moyen d'un vérin pneumatique.
  11. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce qu'entre le ruban de meulage (3) et les lamelles (6) est prévu un élément coulissant et en particulier un ruban coulissant en boucle sans fin.
  12. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que le ruban de meulage (3) peut être fixé transversalement (flèche 13) par rapport au déplacement d'avancement (direction d'avancement 14) du ruban de meulage (3) pour établir différentes pistes parallèles en différentes positions de travail.
  13. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que le ruban de meulage (3) est guidé dans un plan horizontal au moyen d'un galet d'entraînement et d'au moins deux galets de renvoi (4, 5).
  14. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce qu'au moins un galet de renvoi (4, 5) présente à sa périphérie plusieurs découpes disposées en forme de rainure.
  15. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que la tension du ruban de meulage (3) peut être ajustée au moyen d'un galet ajustable.
  16. Dispositif (1) selon au moins l'une des revendications précédentes, caractérisé en ce que le dispositif (1) est doté d'un bâti de déplacement qui peut se déplacer le long du profilé (2).
EP06022880A 2006-11-03 2006-11-03 Dispositif de meulage de profilés avec une bande abrasive en rotation Not-in-force EP1918458B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT06022880T ATE444399T1 (de) 2006-11-03 2006-11-03 Vorrichtung zum schleifen eines profils mittels eines umlaufenden schleifbands
EP06022880A EP1918458B1 (fr) 2006-11-03 2006-11-03 Dispositif de meulage de profilés avec une bande abrasive en rotation
DE502006004994T DE502006004994D1 (de) 2006-11-03 2006-11-03 Vorrichtung zum Schleifen eines Profils mittels eines umlaufenden Schleifbands

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06022880A EP1918458B1 (fr) 2006-11-03 2006-11-03 Dispositif de meulage de profilés avec une bande abrasive en rotation

Publications (2)

Publication Number Publication Date
EP1918458A1 EP1918458A1 (fr) 2008-05-07
EP1918458B1 true EP1918458B1 (fr) 2009-09-30

Family

ID=37758551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06022880A Not-in-force EP1918458B1 (fr) 2006-11-03 2006-11-03 Dispositif de meulage de profilés avec une bande abrasive en rotation

Country Status (3)

Country Link
EP (1) EP1918458B1 (fr)
AT (1) ATE444399T1 (fr)
DE (1) DE502006004994D1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL2177664T3 (pl) 2008-10-20 2012-07-31 Schweerbau Gmbh & Co Kg Sposób i urządzenie do obróbki skrawaniem obrabianego przedmiotu określoną geometrycznie krawędzią tnącą
CN101838956A (zh) * 2010-05-18 2010-09-22 李洪彬 内燃式钢轨砂带打磨机
CN101864708B (zh) * 2010-06-24 2011-12-28 重庆运达机电设备制造有限公司 小型钢轨内燃砂带打磨机
CN104117888B (zh) * 2014-08-06 2016-09-14 齐齐哈尔轨道交通装备有限责任公司 罐式集装箱焊缝打磨装置
CN111074702B (zh) * 2019-12-31 2021-07-13 北京交通大学 砂带式钢轨打磨作业控制系统及其打磨控制方法
CN114102364A (zh) * 2020-08-28 2022-03-01 洛阳拓博尔铁路设备有限公司 一种立式自降温钢轨打磨装置
US20240084520A1 (en) 2020-12-22 2024-03-14 Schweerbau International Gmbh & Co. Kg Device and method for grinding a profile
EP4282585A1 (fr) * 2022-05-23 2023-11-29 Rail Maintenance Group AG Dispositif de meulage de rails

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456217A (en) 1947-04-11 1948-12-14 Linville L Rothrock Sanding machine
US3283447A (en) * 1964-03-19 1966-11-08 Hiram W Cretsinger Platen for contour sanding, grinding and polishing
DE3020393A1 (de) 1980-05-29 1982-01-28 Friedr. August Picard KG, 5630 Remscheid Vorrichtung zum bandschleifen
CH670667A5 (en) 1987-02-09 1989-06-30 Speno International Rail reshaping equipment for railway track - has chassis supported on wheels at one side and with endless grinding belt other side
US4768312A (en) * 1987-03-06 1988-09-06 Williams & White Machine Shop Ltd. Rail grinding machine
FR2655670B1 (fr) 1989-12-08 1994-01-21 Habimat Sarl Machine a bande abrasive pour egaliser la surface d'un rail de chemin de fer apres rechargement.
DK0444242T3 (da) 1990-01-26 1993-03-01 Elaugen Gmbh Skinne-slibemaskine
CH690963A5 (fr) 1996-12-20 2001-03-15 Speno Internat S A Dispositif pour la finition du reprofilage en voie et en continu de la surface du champignon d'au moins un rail d'une voie ferrée.
JP2003053655A (ja) 2001-08-13 2003-02-26 Nagoya Railroad Co Ltd 鉄道のレール上面部削正装置
DE202005012147U1 (de) 2005-08-03 2005-12-15 Möser Maschinenbau GmbH Bandschleifmaschine

Also Published As

Publication number Publication date
EP1918458A1 (fr) 2008-05-07
DE502006004994D1 (de) 2009-11-12
ATE444399T1 (de) 2009-10-15

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