EP3517682B1 - Rail grinder - Google Patents

Rail grinder Download PDF

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Publication number
EP3517682B1
EP3517682B1 EP18214884.1A EP18214884A EP3517682B1 EP 3517682 B1 EP3517682 B1 EP 3517682B1 EP 18214884 A EP18214884 A EP 18214884A EP 3517682 B1 EP3517682 B1 EP 3517682B1
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EP
European Patent Office
Prior art keywords
grinding
grinding tool
axis
frame
rotation
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EP18214884.1A
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German (de)
French (fr)
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EP3517682A1 (en
Inventor
Gérald ARAVINDAKSHAN
Vincent BEN DRISS-TORRES
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Geismar Alpes SAS
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Geismar Alpes SAS
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Publication of EP3517682A1 publication Critical patent/EP3517682A1/en
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    • 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

Definitions

  • the present invention relates to the technical field of rail transport, mining and handling, and more particularly new work and maintenance of the rails of railways or rails of similar raceways, by grinding.
  • a rail grinder is a machine designed to grind the head of a rail, as a preventive or curative measure.
  • the rail grinding operations relate both to the top of the head of the rail and to the sides of the head oriented respectively towards the inside and the outside of the railway track.
  • a rail grinding machine comprises a motor receiving an abrasive grinding tool which it drives in rotation, the abrasive tool and the motor forming a grinding assembly capable of describing a transverse approach movement with respect to the rail.
  • the grinding machine comprises a supporting frame positioned on the rails and comprising at its ends running, guiding and holding members on the two rails of a track, for example of a railway track.
  • the grinding machine comprises an operating device for the movement of said machine in the longitudinal direction of the rail to be grinded.
  • Grinding machines are known specializing in grinding rail mushrooms or the sides of rails and / or switchgear, moving on the tracks. These grinding machines conventionally include an internal combustion engine because said grinding machines are most often used in outdoor places where there is no source of electric or hydraulic energy. In addition, the use of internal combustion engines is more economical and does not complicate or weigh down the frame of the grinding machine.
  • the internal combustion engine of said machines is coupled directly to the grinding tool so that the output shaft of the motor is parallel to the axis of rotation of the grinding tool. As a result, the motor tilts with the grinding head when grinding in the tilted position.
  • the inclination of the grinding tool is limited to a restricted angular range (+/- 30 °) from a middle position due to the direct coupling with the internal combustion engine which follows the inclination of the tool and which risks failure in the event of a steep inclination, posing in particular carburetion and lubrication problems, which could lead to a reduced service life for the engine.
  • the object of the invention is to remedy all or part of the aforementioned drawbacks and in particular to allow the whole of the rail profile on the track to be grinded over an inclination range of more than +/- 90 ° on one side or on the other side. the other, in relation to a vertical central position, thus guaranteeing the correct operation and longevity of the engine, while maintaining a simple architecture suitable for running in switches and crossings, economical and ergonomic.
  • the frame is configured to support and allow longitudinal movement along the rails of the grinding wheel according to the invention.
  • the frame is in the form of a U-shaped carriage on which a plurality of running elements is mounted, the running elements being spaced from one another on the frame.
  • the frame comprises two arms, each intended to extend generally along a rail of the track and connected to one another by a transverse bar.
  • At least two, preferably at least three, rolling members among the plurality of rolling members are rollers with carrier lip configured to guide and support the frame on the rails.
  • the supporting lip rollers are each arranged on a free end of an arm of the frame.
  • At least one other rolling member of the plurality of rolling members is arranged on the cross bar.
  • the front of the frame is constituted by the ends of the arms of the frame and "the rear of the frame” is constituted by the cross bar connecting the two arms of the frame.
  • one of the arms of the frame comprises an end portion on which is mounted a first rolling member and a second rolling member arranged opposite the first rolling member.
  • each rolling member or at least one of the first and the second rolling member is a roller with a carrier lip.
  • the end portion is mounted to pivot relative to the transverse bar of the chassis, which makes it possible to ensure that the running elements are all supported simultaneously and invariably on the two rails of the track.
  • the arm of the frame comprising the pivoting end portion is the arm arranged distally relative to the grinding tool.
  • the frame comprises a guide frame configured to move the motor and the grinding tool in at least the second direction.
  • the guide frame comprises at least a first transverse guide column arranged substantially parallel to a transverse bar fitted to the frame and a second guide column arranged at a distance from the first guide column in a substantially parallel manner, the first guide column and the second guide column being kept at a distance from each other by at least one spacer tube extending substantially perpendicular to the first guide column along a substantially vertical axis.
  • the guide frame comprises at least two spacer tubes arranged at a distance from one another between the first guide column and the second guide column.
  • the distance between the two arms of the frame is adjustable, by means of interchangeable tubes for example, which makes it possible to adapt the dimensions of the frame to the different track spacings.
  • the frame comprises at least one holding device preferably arranged on the transverse bar and configured to firmly hold the guide frame in a plane substantially intersecting the plane in which the frame extends and preferably substantially perpendicular.
  • the retaining device surrounds at least a portion of the first guide column of the guide frame.
  • the guide frame comprises an adjustment device comprising a movable carriage configured to slide along the guide frame and preferably along the guide columns of the guide frame.
  • the mobile carriage comprises running elements, for example in the form of rollers, shaped to cooperate with the first guide column and / or the second guide column, which allows the movement of the mobile carriage. in a direction transverse to the rails.
  • the guide frame comprises a height adjustment element arranged on the mobile carriage.
  • At least the motor and the grinding tool are positioned on the movable carriage, which makes it possible to adjust the height and the position of said grinding tool as a function of the operation to be performed.
  • the grinding tool and the motor are configured to be moved in height by means of the height adjustment element and transversely along the guide frame by means of the movable carriage.
  • the height adjustment element comprises a lower part onto which an upper part translates under the action of a maneuvering member, for example a steering wheel.
  • the grinder comprises a transmission device, the internal combustion engine being coupled to the grinding tool by means of said transmission device.
  • the transmission device preferably comprises a transmission belt and an angle transmission.
  • the transmission belt cooperates with an output drive shaft of the motor, said transmission belt being configured to drive the bevel gear in rotation along a first axis of rotation, said gearbox. angle being configured to drive the grinding tool along a second axis of rotation.
  • the first axis of rotation and the second axis of rotation are substantially orthogonal, preferably perpendicular.
  • the angle transmission comprises a first ring gear driven in rotation by the transmission belt along the first axis of rotation and a second ring gear driven in rotation by the first ring gear along the second axis of rotation.
  • the first crown and the second crown are conical.
  • the output drive shaft of the motor extends along an axis collinear with the first axis of rotation.
  • the transmission device has the advantage of allowing a particular mounting of the internal combustion engine, allowing said engine to be in an invariably horizontal position, that is to say without tilting, when using the grinder.
  • the transmission device remains simple, lightweight, protected and maintenance-free and reliable.
  • the transmission device is arranged on the movable carriage of the guide frame, which allows its transverse displacement from one rail to another and its height adjustment via the height adjustment element. mounted on the mobile cart.
  • the grinder comprises an inclination adjustment device configured to cooperate with the grinding tool so as to allow the inclination of said grinding tool according to an angular range of 180 ° around a profile of rail.
  • the grinding tool is configured to pivot relative to a vertical median axis of said grinding tool in the initial position according to an angular amplitude of +/- 90 ° by means of the adjustment device. tilt.
  • the axis of rotation of the grinding tool is substantially parallel to the longitudinal axis of a rail of the track.
  • the inclination adjustment device is mounted between the transmission device and the grinding tool on the first axis of rotation.
  • the inclination adjustment device is mounted on the movable carriage so that said inclination adjustment device is configured to be moved in height by means of the height adjustment element. and transversely along the guide frame by means of the movable carriage.
  • the inclination adjustment device comprises a casing on which is arranged a display element of the inclination of the grinding tool and an operating member.
  • the display element is a dial making it possible to visually and precisely assess the angle of inclination of the grinding tool.
  • the tilting movement is controlled by the operating member which is for example a tilting wheel, configured to drive a movement transmission element, which itself drives the tool. grinding and preferably the grinding head.
  • the operating member which is for example a tilting wheel, configured to drive a movement transmission element, which itself drives the tool. grinding and preferably the grinding head.
  • the grinding wheel is removable.
  • the grinding wheel is interchangeable and may for example be a cup wheel or a lapidary wheel.
  • the grinding head is configured to allow the type of grinding wheel to be changed simply and in particular thanks to a suitable fixing device.
  • the grinding head comprises a grinding wheel fixing device which can be either adapted to a lapidary grinding wheel or to a cup grinding wheel, said fixing device being interchangeable.
  • the grinding wheel fixing device may be composed for example of a fixing flange or of an adapter shaft depending on the type of grinding wheel to be fixed, said fixing device being coupled to the grinding head drive shaft.
  • the grinding wheel is mounted mobile in rotation in the grinding tool, along the second axis of rotation.
  • the grinding tool comprises a housing.
  • the grinding head comprises a protective cap for the grinding wheel at least partially covering the grinding wheel.
  • the protective cover can be made in two parts.
  • the protective cover may comprise a first part shaped to cover an upper part of the grinding wheel.
  • the first part is configured to move in translation along a translation axis collinear with the axis of rotation of the grinding head between a folded position in which the first part is completely arranged on the housing of the grinding tool. grinding, and a deployed position in which an upper part of the grinding wheel is covered by the first part of the cover, the first part extending in the extension of the housing of the grinding tool.
  • the first part of the protective cover is mounted on the housing by means of a first clamping system configured to fix the first part and allow it to slide.
  • the translational stroke of the first part is determined by the length of the groove in which the first clamping system is arranged.
  • the protective cover comprises at least a second part concentric with the first part of the protective cover, and shaped to partially cover the grinding wheel.
  • the second part of the protective cover is movable in translation along a translation axis collinear with the axis of rotation of the grinding head between a folded position in which the second part is completely arranged on the first part of the protective cover and a deployment position in which the second part extends in the extension of the first part of the protective cover.
  • the division of the cover into at least two parts makes it possible to avoid abutting against the casing when the cover is raised while remaining in compliance with the regulations. Thus, the maximum protection is maintained while minimizing the efforts.
  • the cover made in two parts is preferably used for a cup wheel.
  • the protective cover is partially or totally removable.
  • the internal combustion engine is a four-stroke engine.
  • the internal combustion engine is indirectly connected to the grinding tool.
  • the motor is preferably arranged at the rear of the chassis while the grinding tool and preferably the transmission device are arranged at the front of the chassis. This configuration allows better visibility of the grinding tool in use.
  • the internal combustion engine comprises a centrifugal clutch, which makes it possible in particular to facilitate cold starting.
  • the grinder comprises four sub-assemblies which can be dismantled and structurally independent from one another, which makes it possible to facilitate the transport of the grinder and to improve ergonomics and handling. Indeed, thanks to this configuration each sub-assembly weighs significantly less than 50 kg.
  • the first sub-assembly comprises the frame.
  • the second sub-assembly comprises the guide frame and the mobile carriage.
  • the third sub-assembly comprises the internal combustion engine.
  • the fourth sub-assembly comprises the inclination adjustment device, the transmission device and the grinding tool.
  • the grinder 1 according to the invention is a rail grinder 100 configured to travel on a railway track or the like along rails 100.
  • the grinder 1 comprises an internal combustion engine 2 and a grinding tool 3 comprising a grinding head 4, said motor 2 being configured to drive the grinding tool 3 indirectly.
  • the grinder 1 further comprises a frame 5 arranged on the two rails 100 of a track as illustrated in Figure 1 , said frame 5 being configured to be movable in translation in at least a first direction along the rails 100, represented by a two-way arrow referenced D1.
  • the frame 5 therefore allows the movement of the grinder 1 on the track along the rails 100.
  • the frame 5 is detailed below with reference to Figure 2 .
  • the motor 2 is preferably arranged at the rear of the frame 5 while the grinding tool 3 and preferably the transmission device 8 (detailed below) are arranged at the front of the chassis 5.
  • the frame 5 is in the form of a U-shaped carriage comprising two arms 5a, each intended to extend generally along a rail 100 of the track and connected to each other by a cross bar 5b.
  • a plurality of running gear 5c, 5d is mounted on the frame 5, the running gear 5c, 5d being spaced apart from each other on the frame 5.
  • Three running gear 5c among the plurality of running gear are bearing lip rollers 5c configured to guide and carry the frame 5 on the rails 100.
  • the bearing lip rollers 5c are each arranged on a free end of an arm 5a of the frame 5 at the front of the frame and the other rolling member 5d is arranged on the cross bar 5b at the rear of the frame.
  • the arm arranged distally to the grinding tool 3 comprises two rollers with carrier lip 5c arranged at a distance and facing each other on an end portion 5f mounted to pivot relative to the transverse bar 5b of the frame. 5.
  • the grinder 1 further comprises a guide frame 6 mounted on the frame 5 and configured to move the motor 2 and the grinding tool 3 in at least a second direction, substantially perpendicular to the first direction D1 and transversely to the rails, as illustrated in Figure 1 by the two-way arrow referenced D2.
  • the guide frame 6 is detailed below with reference to the Figure 3 .
  • the guide frame 6 comprises at least a first transverse guide column 6a arranged substantially parallel to the transverse bar 5b of the frame 5 and a second guide column 6b arranged at a distance from the first guide column 6a in a substantially parallel manner.
  • Each guide column 6a, 6b comprises carrying handles 6d.
  • the first guide column 6a and the second guide column 6b are kept at a distance from each other by two spacer tubes 6c extending substantially perpendicular to the first guide column 6a along a substantially vertical axis.
  • the frame 5 comprises two holding devices 5h arranged on the transverse bar 5b and each configured to firmly hold a portion of the guide frame 6 in a plane substantially intersecting the plane in which the frame 5 extends and preferably substantially perpendicular.
  • each holding device 5h surrounds a portion of the first guide column 6a of the guide frame 6.
  • the guide frame 6 comprises an adjustment device 7 comprising a movable carriage 7a configured to slide along the guide columns 6a, 6b of the guide frame 6.
  • the movable carriage 7a comprises rolling members 7b, for example under the form of rollers, shaped to cooperate with the first guide column 6a and the second guide column 6b.
  • the adjustment device 7 comprises a flywheel-type maneuvering member 6f actuating two control rods 6g driving the carriage 7a in translation via the bearing members 7b.
  • the adjustment device comprises a height adjustment element 7c arranged on the movable carriage 7a.
  • the height adjustment element comprises a lower part 7d on which translates an upper part 7f under the action of a maneuvering member 7g, for example a steering wheel.
  • a maneuvering member 7g for example a steering wheel.
  • the grinding tool 3 and the motor 2 are configured to be moved in height by means of the height adjustment member 7c and transversely along the guide frame 6 by means of the movable carriage 7a.
  • the grinder 1 according to the invention comprises a transmission device 8, the internal combustion engine 2 being coupled to the grinding tool 3 by means of said transmission device 8, as detailed below. with reference to Figure 4 .
  • the transmission device 8 comprises a transmission belt 9 and an angle transmission 10.
  • the transmission belt 9 cooperates with an output drive shaft 2a of the engine 2 indicated in dotted lines on the figure.
  • Figure 4 to drive the angle transmission 10 in rotation along a first axis of rotation R1, said angle transmission 10 being configured to drive the grinding tool 3 along a second axis of rotation R2.
  • the first axis of rotation R1 and the second axis of rotation R2 are substantially orthogonal, preferably perpendicular, and the output drive shaft 2a of the motor 2 extends along an axis M1 collinear with the first axis of rotation R1.
  • the angle transmission 10 comprises a first ring gear (not shown) driven in rotation by the transmission belt 8 along the first axis of rotation R1 and a second ring gear (not shown) driven in rotation by the first ring gear according to the second axis of rotation R2.
  • the transmission device 8 is arranged on the carriage mobile 7a of the guide frame 6, which allows its transverse displacement from one rail 100 to another and its height adjustment via the height adjustment element 7c mounted on the mobile carriage 7a.
  • the grinder 1 comprises an inclination adjustment device 11 configured to cooperate with the grinding tool 3 so as to allow the inclination of said grinding tool 3 according to an angular range of 180 ° around a rail profile 100
  • the grinding tool 3 and preferably only the grinding head 4 is configured to pivot with respect to a vertical central axis according to an angular amplitude of +/- 90 ° by means of the inclination adjustment device.
  • the inclination adjustment device 11 is mounted between the transmission device 8 and the grinding tool 3 on the first axis of rotation R1 and is advantageously also mounted on the mobile carriage 7a so that said adjustment device of inclination 11 is configured to be moved in height by means of the height adjustment element 7c and transversely along the guide frame 6 by means of the movable carriage 7a.
  • the inclination adjustment device 11 comprises a housing 11a on which is arranged a display element 11b of the inclination of the grinding tool 3 and an operating member 11c.
  • the display element 11b is a dial making it possible to visually and precisely assess the angle of inclination of the grinding tool 3.
  • the inclination movement is controlled by the operating member 11c. which is for example a tilting wheel, configured to drive a movement transmission element (not shown), which itself drives the grinding tool 3 and preferably the grinding head 4.
  • the grinder 1 comprises a grinding tool 3 illustrated in detail in Figures 5 to 13 according to two embodiments.
  • the grinding tool 3 comprises a housing 3a.
  • the grinding head 4 comprises a cover 12 for protecting the grinding wheel 4a at least partially covering the grinding wheel 4a.
  • the grinding tool 3 and preferably the grinding head 4 is mounted to pivot on the frame 5 and is configured to pivot about the first axis R1 substantially.
  • the grinding head 4 comprises a removable grinding wheel 4a configured to cooperate with an interchangeable grinding wheel fixing device 4d, 4f adapted to the type of grinding wheel 4a.
  • the fixing device is an adapter shaft 4d shaped to cooperate with the drive shaft 4c, as shown in Figure 5 .
  • the fixing device is a fixing flange 4f shaped to cooperate with the drive shaft 4c.
  • the protective cover 12 can be made in two parts as illustrated in Figures 12 and 13 .
  • the grinding tool comprises a cover support 3b as illustrated in Figure 11 arranged in the extension of the housing 3a of the grinding tool 3 between the housing 3a and the grinding wheel 4a.
  • the first part 12a of the cover 12 is shaped to cover an upper part of the grinding wheel 4a.
  • the first part 12a of the cover is configured to move in translation along a translation axis collinear with the rotational drive axis R2 of the grinding wheel 4a between a folded position illustrated in Figure 13 in which the first part 12a is completely arranged on the housing 3a of the grinding tool 3, and a deployment position illustrated in Figure 12 and in which an upper part of the grinding wheel 4a is covered by the first part 12a of the cover 12, the first part 12a extending in the extension of the housing 3a of the grinding tool 3.
  • first part 12a of the protective cover 12 is mounted on the housing 3a by means of a first clamping system 12c configured to fix the first part 12a and allow it to slide.
  • the translational stroke of the first part 12a is determined by the length of the groove 12d in which the first clamping system 12c is arranged.
  • the second protective cover part 12 is movable in translation along a translation axis colinear with the drive axis R2 of the grinding wheel 4a between a folded position ( Figure 13 ) in which the second part 12b is completely arranged on the first part 12a of the protective cover 12 and a deployment position ( Figure 12 ) in which the second part 12b extends in the extension of the first part 12a of the protective cover 12.
  • the translational stroke of the second part 12b is determined by the length of the groove 12g in which a second clamping system 12f is arranged.
  • the grinder 1 can be broken down into four sub-assemblies which can be dismantled and structurally independent from one another, the first sub-assembly comprising the frame 5, the second sub-assembly comprising the guide frame 6 and the mobile carriage 7a and the adjustment element 7, the third sub-assembly comprising the internal combustion engine 2 and the fourth sub-assembly comprising the inclination adjustment device 11, the transmission device 8 and the grinding 3.

Description

La présente invention concerne le domaine technique des transports ferroviaires, des mines et de la manutention et plus particulièrement des travaux neufs et d'entretien des rails de voies ferrées ou de rails de chemins de roulements analogues, par meulage.The present invention relates to the technical field of rail transport, mining and handling, and more particularly new work and maintenance of the rails of railways or rails of similar raceways, by grinding.

Une meuleuse de rails est une machine conçue pour meuler le champignon d'un rail, à titre préventif ou curatif. De façon habituelle, les opérations de meulage de rail concernent aussi bien le dessus du champignon du rail que les flancs du champignon orientés respectivement vers l'intérieur et vers l'extérieur de la voie ferrée.A rail grinder is a machine designed to grind the head of a rail, as a preventive or curative measure. Usually, the rail grinding operations relate both to the top of the head of the rail and to the sides of the head oriented respectively towards the inside and the outside of the railway track.

De manière connue, une machine de meulage de rails comprend un moteur recevant un outil abrasif de meulage qu'il entraine en rotation, l'outil abrasif et le moteur formant un ensemble de meulage apte à décrire un mouvement d'approche transversale par rapport au rail. La machine de meulage comprend un châssis porteur positionné sur les rails et comportant à ses extrémités des organes de roulement, de guidage et de maintien sur les deux rails d'une voie par exemple d'une voie ferrée. En outre, la machine de meulage comprend un dispositif de manœuvre pour le déplacement de ladite machine dans la direction longitudinale du rail à meuler.In known manner, a rail grinding machine comprises a motor receiving an abrasive grinding tool which it drives in rotation, the abrasive tool and the motor forming a grinding assembly capable of describing a transverse approach movement with respect to the rail. The grinding machine comprises a supporting frame positioned on the rails and comprising at its ends running, guiding and holding members on the two rails of a track, for example of a railway track. In addition, the grinding machine comprises an operating device for the movement of said machine in the longitudinal direction of the rail to be grinded.

On connait des machines de meulage spécialisées dans le meulage des champignons de rail ou des flancs de rails et/ou d'appareillages d'aiguillage, se déplaçant sur les voies. Ces machines de meulage comprennent classiquement un moteur à combustion interne car lesdites machines de meulage sont, le plus souvent, utilisées en des lieux extérieurs où l'on ne dispose pas de source d'énergie électrique ou hydraulique. En outre, l'utilisation de moteurs à combustion interne est plus économique et ne complexifie pas ni n'alourdit le châssis de la machine de meulage. Le moteur à combustion interne desdites machines est couplé directement à l'outil de meulage de sorte que l'arbre de sortie du moteur est parallèle à l'axe de rotation de l'outil de meulage. Il en résulte que le moteur s'incline avec la tête de meulage lors du meulage en position inclinée. Toutefois, l'inclinaison de l'outil de meulage est limitée à une plage angulaire restreinte (+/-30°) par rapport à une position médiane en raison du couplage direct avec le moteur à combustion interne qui suit l'inclinaison de l'outil et qui risque une défaillance en cas d'inclinaison forte posant notamment des problèmes de carburation et de lubrification, pouvant conduire à une durée de vie réduite pour le moteur.Grinding machines are known specializing in grinding rail mushrooms or the sides of rails and / or switchgear, moving on the tracks. These grinding machines conventionally include an internal combustion engine because said grinding machines are most often used in outdoor places where there is no source of electric or hydraulic energy. In addition, the use of internal combustion engines is more economical and does not complicate or weigh down the frame of the grinding machine. The internal combustion engine of said machines is coupled directly to the grinding tool so that the output shaft of the motor is parallel to the axis of rotation of the grinding tool. As a result, the motor tilts with the grinding head when grinding in the tilted position. However, the inclination of the grinding tool is limited to a restricted angular range (+/- 30 °) from a middle position due to the direct coupling with the internal combustion engine which follows the inclination of the tool and which risks failure in the event of a steep inclination, posing in particular carburetion and lubrication problems, which could lead to a reduced service life for the engine.

Le document US-A-3882645 divulgue une meuleuse selon le préambule de la revendication 1.The document US-A-3882645 discloses a grinder according to the preamble of claim 1.

L'invention a pour but de remédier à tout ou partie des inconvénients précités et notamment à permettre de meuler l'intégralité du profil de rail sur voie sur une plage d'inclinaison de plus de +/- 90° d'un côté ou de l'autre, par rapport à une position médiane verticale, garantissant ainsi le bon fonctionnement et la longévité du moteur, tout en conservant une architecture simple apte à circuler dans les appareils de voie, économique et ergonomique.The object of the invention is to remedy all or part of the aforementioned drawbacks and in particular to allow the whole of the rail profile on the track to be grinded over an inclination range of more than +/- 90 ° on one side or on the other side. the other, in relation to a vertical central position, thus guaranteeing the correct operation and longevity of the engine, while maintaining a simple architecture suitable for running in switches and crossings, economical and ergonomic.

À cet effet, l'invention a pour objet une meuleuse de rails configurée pour circuler sur une voie ferrée ou analogue, et comprenant :

  • Au moins un moteur à combustion interne,
  • Au moins un outil de meulage comprenant une tête de meulage comportant une meule entraînée en rotation selon un axe de rotation par le moteur à combustion interne,
  • Un châssis destiné à être agencé sur les deux rails d'une voie, ledit châssis étant configuré pour être mobile en translation dans au moins une première direction le long des rails et pour déplacer le moteur et l'outil de meulage dans au moins une deuxième direction, sensiblement perpendiculaire à la première direction et transversalement aux rails,
caractérisée en ce que l'outil de meulage est monté pivotant sur le châssis et étant configuré pour pivoter autour d'un premier axe de rotation sensiblement sécant et préférentiellement perpendiculaire à l'axe de rotation de la meule dans une plage angulaire d'au moins sensiblement 180°, tandis que le moteur est monté sur le châssis de manière non-pivotante et indépendante par rapport à l'outil de meulage.To this end, the invention relates to a rail grinder configured to run on a railway or the like, and comprising:
  • At least one internal combustion engine,
  • At least one grinding tool comprising a grinding head comprising a grinding wheel rotated about an axis of rotation by the internal combustion engine,
  • A frame intended to be arranged on the two rails of a track, said frame being configured to be movable in translation in at least a first direction along the rails and to move the motor and the grinding tool in at least a second direction, substantially perpendicular to the first direction and transversely to the rails,
characterized in that the grinding tool is pivotally mounted on the frame and being configured to pivot about a first axis of rotation substantially secant and preferably perpendicular to the axis of rotation of the grinding wheel in an angular range of at least substantially 180 °, while the motor is mounted on the frame in a non-swiveling manner and independent of the grinding tool.

Grâce à l'invention, il est possible de meuler l'ensemble d'un profil de chaque rail (champignon, âme et flancs) avec une même machine de manière simple, tout en préservant le moteur à combustion interne. En outre, la mobilité du châssis permet de travailler aussi bien sur un rail que sur l'autre et permet également de circuler librement sur la voie et de passer les aiguillages sans difficulté. Avantageusement et selon l'invention, le châssis est configuré pour supporter et permettre le déplacement longitudinal le long des rails de la meule selon l'invention.Thanks to the invention, it is possible to grind the whole of a profile of each rail (head, web and sides) with the same machine in a simple manner, while preserving the internal combustion engine. In addition, the mobility of the chassis makes it possible to work on one rail as well as on the other and also makes it possible to move freely on the track and to pass the switches without difficulty. Advantageously and according to the invention, the frame is configured to support and allow longitudinal movement along the rails of the grinding wheel according to the invention.

Les caractéristiques de l'invention listées ci-après sont à prendre seules ou en combinaison les unes avec les autres en fonction de leur compatibilité structurelle.The characteristics of the invention listed below are to be taken alone or in combination with one another depending on their structural compatibility.

Selon une caractéristique de l'invention, le châssis se présente sous la forme d'un chariot en forme de U sur lequel est montée une pluralité d'organes de roulement, les organes de roulement étant à distance les uns des autres sur le châssis.According to one characteristic of the invention, the frame is in the form of a U-shaped carriage on which a plurality of running elements is mounted, the running elements being spaced from one another on the frame.

Selon une caractéristique de l'invention, le châssis comprend deux bras, chacun destiné à s'étendre globalement le long d'un rail de la voie et reliés l'un avec l'autre par une barre transversale.According to one characteristic of the invention, the frame comprises two arms, each intended to extend generally along a rail of the track and connected to one another by a transverse bar.

Selon une caractéristique de l'invention, au moins deux, préférentiellement au moins trois, organes de roulement parmi la pluralité d'organes de roulement sont des galets à lèvre porteur configurés pour guider et porter le châssis sur les rails.According to one characteristic of the invention, at least two, preferably at least three, rolling members among the plurality of rolling members are rollers with carrier lip configured to guide and support the frame on the rails.

Selon une caractéristique de l'invention, les galets à lèvre porteurs sont agencés chacun sur une extrémité libre d'un bras du châssis.According to one characteristic of the invention, the supporting lip rollers are each arranged on a free end of an arm of the frame.

Selon une caractéristique de l'invention, au moins un autre organe de roulement de la pluralité d'organes de roulement est agencé sur la barre transversale.According to one characteristic of the invention, at least one other rolling member of the plurality of rolling members is arranged on the cross bar.

Dans la présente invention, on considère que « l'avant du châssis » est constitué par les extrémités des bras du châssis et « l'arrière du châssis » est constitué la barre transversale reliant les deux bras du châssis.In the present invention, it is considered that "the front of the frame" is constituted by the ends of the arms of the frame and "the rear of the frame" is constituted by the cross bar connecting the two arms of the frame.

Selon une caractéristique de l'invention, un des bras du châssis comprend une portion extrémale sur laquelle est monté un premier organe de roulement et un deuxième organe de roulement agencé en regard du premier organe de roulement.According to one characteristic of the invention, one of the arms of the frame comprises an end portion on which is mounted a first rolling member and a second rolling member arranged opposite the first rolling member.

Préférentiellement, chaque organe de roulement ou au moins l'un parmi le premier et le deuxième organe de roulement est un galet à lèvre porteur.Preferably, each rolling member or at least one of the first and the second rolling member is a roller with a carrier lip.

Selon une caractéristique de l'invention, la portion extrémale est montée pivotante par rapport à la barre transversale du châssis, ce qui permet d'assurer que les organes de roulement sont tous en appui simultanément et invariablement sur les deux rails de la voie.According to one characteristic of the invention, the end portion is mounted to pivot relative to the transverse bar of the chassis, which makes it possible to ensure that the running elements are all supported simultaneously and invariably on the two rails of the track.

Avantageusement, le bras du châssis comprenant la portion extrémale pivotante est le bras agencé distalement par rapport à l'outil de meulage.Advantageously, the arm of the frame comprising the pivoting end portion is the arm arranged distally relative to the grinding tool.

Selon une caractéristique de l'invention, le châssis comprend un cadre de guidage configuré pour déplacer le moteur et l'outil de meulage dans au moins la deuxième direction.According to one characteristic of the invention, the frame comprises a guide frame configured to move the motor and the grinding tool in at least the second direction.

Avantageusement, le cadre de guidage comprend au moins une première colonne de guidage transversale agencée sensiblement parallèlement à une barre transversale équipant le châssis et une deuxième colonne de guidage agencée à distance de la première colonne de guidage de manière sensiblement parallèle, la première colonne de guidage et la deuxième colonne de guidage étant maintenues à distance l'une de l'autre par au moins un tube d'écartement s'étendant sensiblement perpendiculairement à la première colonne de guidage selon un axe sensiblement vertical.Advantageously, the guide frame comprises at least a first transverse guide column arranged substantially parallel to a transverse bar fitted to the frame and a second guide column arranged at a distance from the first guide column in a substantially parallel manner, the first guide column and the second guide column being kept at a distance from each other by at least one spacer tube extending substantially perpendicular to the first guide column along a substantially vertical axis.

Selon une caractéristique de l'invention, le cadre de guidage comprend au moins deux tubes d'écartement agencés à distance l'un de l'autre entre la première colonne de guidage et la deuxième colonne de guidage.According to one characteristic of the invention, the guide frame comprises at least two spacer tubes arranged at a distance from one another between the first guide column and the second guide column.

Selon une caractéristique de l'invention, la distance entre les deux bras du châssis est réglable, au moyen de tubes interchangeables par exemple, ce qui permet d'adapter les dimensions du châssis aux différents écartements des voies. Selon une caractéristique de l'invention, le châssis comprend au moins un dispositif de maintien agencé préférentiellement sur la barre transversale et configuré pour maintenir fermement le cadre de guidage dans un plan sensiblement sécant au plan dans lequel le châssis s'étend et préférentiellement sensiblement perpendiculaire. Préférentiellement, le dispositif de maintien enserre au moins une portion de la première colonne de guidage du cadre de guidage.According to one characteristic of the invention, the distance between the two arms of the frame is adjustable, by means of interchangeable tubes for example, which makes it possible to adapt the dimensions of the frame to the different track spacings. According to one characteristic of the invention, the frame comprises at least one holding device preferably arranged on the transverse bar and configured to firmly hold the guide frame in a plane substantially intersecting the plane in which the frame extends and preferably substantially perpendicular. . Preferably, the retaining device surrounds at least a portion of the first guide column of the guide frame.

Selon une caractéristique de l'invention, le cadre de guidage comprend un dispositif de réglage comprenant un chariot mobile configuré pour coulisser le long du cadre de guidage et préférentiellement le long des colonnes de guidage du cadre de guidage.According to one characteristic of the invention, the guide frame comprises an adjustment device comprising a movable carriage configured to slide along the guide frame and preferably along the guide columns of the guide frame.

Selon une caractéristique de l'invention, le chariot mobile comprend des organes de roulement, par exemple sous forme de galets, conformés pour coopérer avec la première colonne de guidage et/ou la deuxième colonne de guidage, ce qui permet le déplacement du chariot mobile dans une direction transversale par rapport aux rails.According to one characteristic of the invention, the mobile carriage comprises running elements, for example in the form of rollers, shaped to cooperate with the first guide column and / or the second guide column, which allows the movement of the mobile carriage. in a direction transverse to the rails.

Selon une caractéristique de l'invention, le cadre de guidage comprend un élément de réglage en hauteur agencé sur le chariot mobile.According to one characteristic of the invention, the guide frame comprises a height adjustment element arranged on the mobile carriage.

Selon une caractéristique de l'invention, au moins le moteur et l'outil de meulage sont positionnés sur le chariot mobile, ce qui permet de régler la hauteur et la position dudit outil de meulage en fonction de l'opération à effectuer.According to one characteristic of the invention, at least the motor and the grinding tool are positioned on the movable carriage, which makes it possible to adjust the height and the position of said grinding tool as a function of the operation to be performed.

Avantageusement, l'outil de meulage et le moteur sont configurés pour être déplacés en hauteur par l'intermédiaire de l'élément de réglage en hauteur et transversalement le long du cadre de guidage par l'intermédiaire du chariot mobile.Advantageously, the grinding tool and the motor are configured to be moved in height by means of the height adjustment element and transversely along the guide frame by means of the movable carriage.

Selon une caractéristique de l'invention, l'élément de réglage en hauteur comprend une partie inférieure sur laquelle translate une partie supérieure sous l'action d'un organe de manœuvre par exemple un volant.According to one characteristic of the invention, the height adjustment element comprises a lower part onto which an upper part translates under the action of a maneuvering member, for example a steering wheel.

Selon une caractéristique de l'invention, la meuleuse comprend un dispositif de transmission, le moteur à combustion interne étant accouplé à l'outil de meulage par l'intermédiaire dudit dispositif de transmission.According to one characteristic of the invention, the grinder comprises a transmission device, the internal combustion engine being coupled to the grinding tool by means of said transmission device.

Selon une caractéristique de l'invention, le dispositif de transmission comprend préférentiellement une courroie de transmission et un renvoi d'angle.According to one characteristic of the invention, the transmission device preferably comprises a transmission belt and an angle transmission.

Selon une caractéristique de l'invention, la courroie de transmission coopère avec un arbre d'entrainement de sortie du moteur, ladite courroie de transmission étant configurée pour entrainer en rotation le renvoi d'angle selon un premier axe de rotation, ledit renvoi d'angle étant configuré pour entrainer l'outil de meulage selon un deuxième axe de rotation.According to one characteristic of the invention, the transmission belt cooperates with an output drive shaft of the motor, said transmission belt being configured to drive the bevel gear in rotation along a first axis of rotation, said gearbox. angle being configured to drive the grinding tool along a second axis of rotation.

Selon une caractéristique de l'invention, le premier axe de rotation et le deuxième axe de rotation sont sensiblement orthogonaux, préférentiellement perpendiculaires.According to one characteristic of the invention, the first axis of rotation and the second axis of rotation are substantially orthogonal, preferably perpendicular.

Selon une caractéristique de l'invention, le renvoi d'angle comprend une première couronne entrainée en rotation par la courroie de transmission selon le premier axe de rotation et une deuxième couronne entrainée en rotation par la première couronne selon le deuxième axe de rotation. Préférentiellement, la première couronne et la deuxième couronne sont coniques.According to one characteristic of the invention, the angle transmission comprises a first ring gear driven in rotation by the transmission belt along the first axis of rotation and a second ring gear driven in rotation by the first ring gear along the second axis of rotation. Preferably, the first crown and the second crown are conical.

Selon une caractéristique de l'invention, l'arbre d'entrainement de sortie du moteur s'étend selon un axe colinéaire au premier axe de rotation.According to one characteristic of the invention, the output drive shaft of the motor extends along an axis collinear with the first axis of rotation.

Le dispositif de transmission présente l'avantage de permettre un montage particulier du moteur à combustion interne, permettant audit moteur d'être dans une position invariablement horizontale c'est-à-dire sans inclinaison, lors de l'utilisation de la meuleuse. En outre, le dispositif de transmission reste simple, léger, protégé et ne nécessitant pas d'entretien et fiable.The transmission device has the advantage of allowing a particular mounting of the internal combustion engine, allowing said engine to be in an invariably horizontal position, that is to say without tilting, when using the grinder. In addition, the transmission device remains simple, lightweight, protected and maintenance-free and reliable.

Selon une caractéristique de l'invention, le dispositif de transmission est agencé sur le chariot mobile du cadre de guidage, ce qui permet son déplacement transversal d'un rail à l'autre et son réglage en hauteur via l'élément de réglage en hauteur monté sur le chariot mobile.According to one characteristic of the invention, the transmission device is arranged on the movable carriage of the guide frame, which allows its transverse displacement from one rail to another and its height adjustment via the height adjustment element. mounted on the mobile cart.

Selon une caractéristique de l'invention, la meuleuse comprend un dispositif de réglage d'inclinaison configuré pour coopérer avec l'outil de meulage de manière à permettre l'inclinaison dudit outil de meulage selon une plage angulaire de 180° autour d'un profil de rail. Ainsi, l'outil de meulage est configuré pour pivoter par rapport à un axe médian vertical dudit outil de meulage en position initiale selon une amplitude angulaire de +/- 90° par l'intermédiaire du dispositif de réglage d'inclinaison. En d'autres termes et dans un autre référentiel, l'axe de rotation de l'outil de meulage est sensiblement parallèle à l'axe longitudinal d'un rail de la voie.According to one characteristic of the invention, the grinder comprises an inclination adjustment device configured to cooperate with the grinding tool so as to allow the inclination of said grinding tool according to an angular range of 180 ° around a profile of rail. Thus, the grinding tool is configured to pivot relative to a vertical median axis of said grinding tool in the initial position according to an angular amplitude of +/- 90 ° by means of the adjustment device. tilt. In other words and in another frame of reference, the axis of rotation of the grinding tool is substantially parallel to the longitudinal axis of a rail of the track.

Selon une caractéristique de l'invention, le dispositif de réglage d'inclinaison est monté entre le dispositif de transmission et l'outil de meulage sur le premier axe de rotation.According to one characteristic of the invention, the inclination adjustment device is mounted between the transmission device and the grinding tool on the first axis of rotation.

Selon une caractéristique de l'invention, le dispositif de réglage d'inclinaison est monté sur le chariot mobile de sorte que ledit dispositif de réglage d'inclinaison est configuré pour être déplacé en hauteur par l'intermédiaire de l'élément de réglage en hauteur et transversalement le long du cadre de guidage par l'intermédiaire du chariot mobile.According to one characteristic of the invention, the inclination adjustment device is mounted on the movable carriage so that said inclination adjustment device is configured to be moved in height by means of the height adjustment element. and transversely along the guide frame by means of the movable carriage.

Selon une caractéristique de l'invention, le dispositif de réglage d'inclinaison comprend un carter sur lequel est agencé un élément d'affichage de l'inclinaison de l'outil de meulage et un organe de manœuvre. Avantageusement, l'élément d'affichage est un cadran permettant d'évaluer visuellement et précisément l'angle d'inclinaison de l'outil de meulage.According to one characteristic of the invention, the inclination adjustment device comprises a casing on which is arranged a display element of the inclination of the grinding tool and an operating member. Advantageously, the display element is a dial making it possible to visually and precisely assess the angle of inclination of the grinding tool.

Selon une caractéristique de l'invention, le mouvement d'inclinaison est commandé par l'organe de manœuvre qui est par exemple un volant d'inclinaison, configuré pour entraîner un élément de transmission de mouvement, qui entraine lui-même l'outil de meulage et préférentiellement la tête de meulage.According to one characteristic of the invention, the tilting movement is controlled by the operating member which is for example a tilting wheel, configured to drive a movement transmission element, which itself drives the tool. grinding and preferably the grinding head.

Selon une caractéristique de l'invention, la meule est amovible.According to one characteristic of the invention, the grinding wheel is removable.

Selon une caractéristique de l'invention, la meule est interchangeable et peut être par exemple une meule à boisseau ou une meule lapidaire.According to one characteristic of the invention, the grinding wheel is interchangeable and may for example be a cup wheel or a lapidary wheel.

Avantageusement, la tête de meulage est configurée pour permettre de changer de type de meule simplement et notamment grâce à un dispositif de fixation adapté.Advantageously, the grinding head is configured to allow the type of grinding wheel to be changed simply and in particular thanks to a suitable fixing device.

Selon une caractéristique de l'invention, la tête de meulage comprend un dispositif de fixation de meule qui peut être soit adapté à une meule lapidaire soit à une meule à boisseau, ledit dispositif de fixation étant interchangeable.According to one characteristic of the invention, the grinding head comprises a grinding wheel fixing device which can be either adapted to a lapidary grinding wheel or to a cup grinding wheel, said fixing device being interchangeable.

Selon une caractéristique de l'invention, le dispositif de fixation de la meule peut être composé par exemple d'un flasque de fixation ou d'un arbre d'adaptation selon le type de meule à fixer, ledit dispositif de fixation étant accouplé à l'arbre d'entrainement de la tête de meulage.According to one characteristic of the invention, the grinding wheel fixing device may be composed for example of a fixing flange or of an adapter shaft depending on the type of grinding wheel to be fixed, said fixing device being coupled to the grinding head drive shaft.

Selon une caractéristique de l'invention, la meule est montée mobile en rotation dans l'outil de meulage, selon le deuxième axe de rotation.According to one characteristic of the invention, the grinding wheel is mounted mobile in rotation in the grinding tool, along the second axis of rotation.

Selon une caractéristique de l'invention, l'outil de meulage comprend un carter.According to one characteristic of the invention, the grinding tool comprises a housing.

Selon une caractéristique de l'invention, la tête de meulage comprend un capot de protection de la meule couvrant au moins partiellement la meule.According to one characteristic of the invention, the grinding head comprises a protective cap for the grinding wheel at least partially covering the grinding wheel.

Selon une caractéristique de l'invention, le capot de protection peut être réalisé en deux parties.According to one characteristic of the invention, the protective cover can be made in two parts.

Selon une caractéristique de l'invention, le capot de protection peut comprendre une première partie conformée pour couvrir une partie supérieure de la meule. Avantageusement, la première partie est configurée pour se déplacer en translation selon un axe de translation colinéaire à l'axe de rotation de la tête de meulage entre une position de repli dans laquelle la première partie est totalement agencée sur le carter de l'outil de meulage, et une position de déploiement dans laquelle une partie supérieure de la meule est recouverte par la première partie du capot, la première partie s'étendant dans le prolongement du carter de l'outil de meulage.According to one characteristic of the invention, the protective cover may comprise a first part shaped to cover an upper part of the grinding wheel. Advantageously, the first part is configured to move in translation along a translation axis collinear with the axis of rotation of the grinding head between a folded position in which the first part is completely arranged on the housing of the grinding tool. grinding, and a deployed position in which an upper part of the grinding wheel is covered by the first part of the cover, the first part extending in the extension of the housing of the grinding tool.

Selon une caractéristique de l'invention, la première partie du capot de protection est montée sur le carter par l'intermédiaire d'un premier système de serrage configuré pour fixer la première partie et autoriser son coulissement.According to one characteristic of the invention, the first part of the protective cover is mounted on the housing by means of a first clamping system configured to fix the first part and allow it to slide.

Selon une caractéristique de l'invention, la course de translation de la première partie est déterminée par la longueur de la rainure dans laquelle est agencé le premier système de serrage.According to one characteristic of the invention, the translational stroke of the first part is determined by the length of the groove in which the first clamping system is arranged.

Selon une caractéristique de l'invention, le capot de protection comprend au moins une deuxième partie concentrique à la première partie du capot de protection, et conformée pour couvrir partiellement la meule.According to one characteristic of the invention, the protective cover comprises at least a second part concentric with the first part of the protective cover, and shaped to partially cover the grinding wheel.

Selon une caractéristique de l'invention, la deuxième partie de capot de protection est mobile en translation selon un axe de translation colinéaire à l'axe de rotation de la tête de meulage entre une position de repli dans laquelle la deuxième partie est totalement agencée sur la première partie du capot de protection et une position de déploiement dans laquelle la deuxième partie s'étend dans le prolongement de la première partie du capot de protection. Avantageusement, la division du capot en au moins deux parties permet d'éviter de buter contre le carter lors du relevage du capot tout en restant conforme à la règlementation. Ainsi, la protection maximum est conservée tout en minimisant les efforts.According to one characteristic of the invention, the second part of the protective cover is movable in translation along a translation axis collinear with the axis of rotation of the grinding head between a folded position in which the second part is completely arranged on the first part of the protective cover and a deployment position in which the second part extends in the extension of the first part of the protective cover. Advantageously, the division of the cover into at least two parts makes it possible to avoid abutting against the casing when the cover is raised while remaining in compliance with the regulations. Thus, the maximum protection is maintained while minimizing the efforts.

Selon l'invention, le capot réalisé en deux parties est préférentiellement utilisé pour une meule à boisseau.According to the invention, the cover made in two parts is preferably used for a cup wheel.

Selon une caractéristique de l'invention, le capot de protection est amovible partiellement ou totalement.According to one characteristic of the invention, the protective cover is partially or totally removable.

Selon une caractéristique de l'invention, le moteur à combustion interne est un moteur à quatre temps.According to one characteristic of the invention, the internal combustion engine is a four-stroke engine.

Selon une caractéristique de l'invention, le moteur à combustion interne est relié indirectement à l'outil de meulage.According to one characteristic of the invention, the internal combustion engine is indirectly connected to the grinding tool.

Selon une caractéristique de l'invention, le moteur est agencé préférentiellement à l'arrière du châssis tandis que l'outil de meulage et préférentiellement le dispositif de transmission sont agencés à l'avant du châssis. Cette configuration permet une meilleure visibilité de l'outil de meulage en cours d'utilisation.According to one characteristic of the invention, the motor is preferably arranged at the rear of the chassis while the grinding tool and preferably the transmission device are arranged at the front of the chassis. This configuration allows better visibility of the grinding tool in use.

Selon une caractéristique de l'invention, le moteur à combustion interne comprend un embrayage centrifuge, ce qui permet notamment de faciliter le démarrage à froid.According to one characteristic of the invention, the internal combustion engine comprises a centrifugal clutch, which makes it possible in particular to facilitate cold starting.

Selon une caractéristique de l'invention, la meuleuse comprend quatre sous-ensembles démontables et indépendants structurellement les uns par rapport aux autres, ce qui permet de faciliter le transport de la meuleuse et d'améliorer l'ergonomie et la manutention. En effet, grâce à cette configuration chaque sous-ensemble pèse sensiblement moins de 50Kg.According to one characteristic of the invention, the grinder comprises four sub-assemblies which can be dismantled and structurally independent from one another, which makes it possible to facilitate the transport of the grinder and to improve ergonomics and handling. Indeed, thanks to this configuration each sub-assembly weighs significantly less than 50 kg.

Selon une caractéristique de l'invention, le premier sous-ensemble comprend le châssis.According to one characteristic of the invention, the first sub-assembly comprises the frame.

Selon une caractéristique de l'invention, le deuxième sous-ensemble comprend le cadre de guidage et le chariot mobile.According to one characteristic of the invention, the second sub-assembly comprises the guide frame and the mobile carriage.

Selon une caractéristique de l'invention, le troisième sous-ensemble comprend le moteur à combustion interne.According to one characteristic of the invention, the third sub-assembly comprises the internal combustion engine.

Selon une caractéristique de l'invention, le quatrième sous-ensemble comprend le dispositif de réglage d'inclinaison, le dispositif de transmission et l'outil de meulage.According to one characteristic of the invention, the fourth sub-assembly comprises the inclination adjustment device, the transmission device and the grinding tool.

L'invention sera mieux comprise, grâce à la description ci-après, qui se rapporte à des modes de réalisation selon la présente invention, donnés à titre d'exemples non limitatifs et expliqués avec référence aux Figures schématiques annexées. Les Figures schématiques annexées sont listées ci-dessous :

  • La Figure 1 est une vue en perspective d'une meuleuse conforme à la présente invention,
  • La Figure 2 est une vue en perspective, du châssis de la meuleuse représentée en Figure 1,
  • La Figure 3 est une vue en perspective du cadre de guidage de la meuleuse représentée en Figure 1,
  • La Figure 4 est une vue en perspective de la transmission et de l'outil de meulage de la meuleuse représentée en Figure 1,
  • La Figure 5 est une vue écorchée de dessus du montage d'une meule lapidaire sur la tête de meulage de la meuleuse selon l'invention,
  • La Figure 6 est une vue en perspective de la meuleuse selon l'invention équipée d'une meule lapidaire en utilisation selon le premier mode de réalisation,
  • La Figure 7 est une vue de détail de la meule lapidaire illustrée en Figure 6,
  • La Figure 8 est une vue écorchée de dessus du montage d'une meule à boisseau sur la tête de meulage de la meuleuse selon l'invention,
  • La figure 9 est une vue en perspective de la meuleuse selon l'invention équipée d'une meule à boisseau en utilisation selon le deuxième mode de réalisation,
  • La Figure 10 est une vue de détail de la meule à boisseau illustrée en Figure 9,
  • La Figure 11 est une vue de l'outil de meulage équipée d'une meule à boisseau sans capot de protection,
  • La Figure 12 est une vue de dessus de l'outil de meulage équipée d'une meule à boisseau avec un capot en position de déploiement,
  • La Figure 13 est une vue de dessus de l'outil de meulage équipée d'une meule à boisseau avec un capot en position de repli.
The invention will be better understood, thanks to the description below, which relates to embodiments according to the present invention, given by way of non-limiting examples and explained with reference to the accompanying schematic figures. The attached schematic figures are listed below:
  • The Figure 1 is a perspective view of a grinder according to the present invention,
  • The Figure 2 is a perspective view of the frame of the grinder shown in Figure 1 ,
  • The Figure 3 is a perspective view of the guide frame of the grinder shown in Figure 1 ,
  • The Figure 4 is a perspective view of the transmission and grinding tool of the grinder shown in Figure 1 ,
  • The Figure 5 is a cutaway view from above of the mounting of a lapidary grinding wheel on the grinding head of the grinder according to the invention,
  • The Figure 6 is a perspective view of the grinder according to the invention equipped with a lapidary grinding wheel in use according to the first embodiment,
  • The Figure 7 is a detail view of the lapidary wheel illustrated in Figure 6 ,
  • The Figure 8 is a cutaway view from above of the mounting of a cup wheel on the grinding head of the grinder according to the invention,
  • The figure 9 is a perspective view of the grinder according to the invention equipped with a cup grinding wheel in use according to the second embodiment,
  • The Figure 10 is a detail view of the cup wheel illustrated in Figure 9 ,
  • The Figure 11 is a view of the grinding tool fitted with a cup wheel without a protective cover,
  • The Figure 12 is a top view of the grinding tool fitted with a cup wheel with a cover in the deployed position,
  • The Figure 13 is a top view of the grinding tool fitted with a cup wheel with a cover in the folded position.

La meuleuse 1 selon l'invention est une meuleuse de rails 100 configurée pour circuler sur une voie ferrée ou analogue le long de rails 100.The grinder 1 according to the invention is a rail grinder 100 configured to travel on a railway track or the like along rails 100.

Conformément à la Figure 1 notamment, la meuleuse 1 selon l'invention comprend un moteur 2 à combustion interne et un outil de meulage 3 comportant une tête de meulage 4, ledit moteur 2 étant configuré pour entrainer l'outil de meulage 3 de manière indirecte. La meuleuse 1 comprend en outre un châssis 5 agencé sur les deux rails 100 d'une voie comme illustré en Figure 1, ledit châssis 5 étant configuré pour être mobile en translation dans au moins une première direction le long des rails 100, représentée par une flèche à double sens référencée D1. Le châssis 5 permet donc le déplacement de la meuleuse 1 sur la voie le long des rails 100. Le châssis 5 est détaillé ci-après en référence à la Figure 2.In accordance with the Figure 1 in particular, the grinder 1 according to the invention comprises an internal combustion engine 2 and a grinding tool 3 comprising a grinding head 4, said motor 2 being configured to drive the grinding tool 3 indirectly. The grinder 1 further comprises a frame 5 arranged on the two rails 100 of a track as illustrated in Figure 1 , said frame 5 being configured to be movable in translation in at least a first direction along the rails 100, represented by a two-way arrow referenced D1. The frame 5 therefore allows the movement of the grinder 1 on the track along the rails 100. The frame 5 is detailed below with reference to Figure 2 .

Avantageusement et comme on peut le voir en Figure 1, le moteur 2 est agencé préférentiellement à l'arrière du châssis 5 tandis que l'outil de meulage 3 et préférentiellement le dispositif de transmission 8 (détaillé par la suite) sont agencés à l'avant du châssis 5.Advantageously and as we can see in Figure 1 , the motor 2 is preferably arranged at the rear of the frame 5 while the grinding tool 3 and preferably the transmission device 8 (detailed below) are arranged at the front of the chassis 5.

Conformément à la Figure 2, le châssis 5 se présente sous la forme d'un chariot en forme de U comprenant deux bras 5a, chacun destiné à s'étendre globalement le long d'un rail 100 de la voie et reliés l'un avec l'autre par une barre transversale 5b. Une pluralité d'organes de roulement 5c, 5d est montée sur le châssis 5, les organes de roulement 5c, 5d étant à distance les uns des autres sur le châssis 5. Trois organes de roulement 5c parmi la pluralité d'organes de roulement sont des galets à lèvre porteurs 5c configurés pour guider et porter le châssis 5 sur les rails 100. Comme on peut le voir en Figure 2, les galets à lèvre porteurs 5c sont agencés chacun sur une extrémité libre d'un bras 5a du châssis 5 à l'avant du châssis et l'autre organe de roulement 5d est agencé sur la barre transversale 5b à l'arrière du châssis. Plus particulièrement, le bras agencé distalement à l'outil de meulage 3 comprend deux galets à lèvre porteur 5c agencés à distance et en regard l'un de l'autre sur une portion extrémale 5f montée pivotante par rapport à la barre transversale 5b du châssis 5.In accordance with the Figure 2 , the frame 5 is in the form of a U-shaped carriage comprising two arms 5a, each intended to extend generally along a rail 100 of the track and connected to each other by a cross bar 5b. A plurality of running gear 5c, 5d is mounted on the frame 5, the running gear 5c, 5d being spaced apart from each other on the frame 5. Three running gear 5c among the plurality of running gear are bearing lip rollers 5c configured to guide and carry the frame 5 on the rails 100. As can be seen in Figure 2 , the bearing lip rollers 5c are each arranged on a free end of an arm 5a of the frame 5 at the front of the frame and the other rolling member 5d is arranged on the cross bar 5b at the rear of the frame. More particularly, the arm arranged distally to the grinding tool 3 comprises two rollers with carrier lip 5c arranged at a distance and facing each other on an end portion 5f mounted to pivot relative to the transverse bar 5b of the frame. 5.

Conformément à la Figure 1, la meuleuse 1 selon l'invention, comprend en outre un cadre de guidage 6 monté sur le châssis 5 et configuré pour déplacer le moteur 2 et l'outil de meulage 3 dans au moins une deuxième direction, sensiblement perpendiculaire à la première direction D1 et transversalement aux rails, comme illustré en Figure 1 par la flèche à double sens référencée D2. Le cadre de guidage 6 est détaillé ci-après en référence à la Figure 3.In accordance with the Figure 1 , the grinder 1 according to the invention, further comprises a guide frame 6 mounted on the frame 5 and configured to move the motor 2 and the grinding tool 3 in at least a second direction, substantially perpendicular to the first direction D1 and transversely to the rails, as illustrated in Figure 1 by the two-way arrow referenced D2. The guide frame 6 is detailed below with reference to the Figure 3 .

Conformément à la Figure 3, le cadre de guidage 6 comprend au moins une première colonne de guidage 6a transversale agencée sensiblement parallèlement à la barre transversale 5b du châssis 5 et une deuxième colonne de guidage 6b agencée à distance de la première colonne de guidage 6a de manière sensiblement parallèle. Chaque colonne de guidage 6a, 6b comprend des poignées de portage 6d. La première colonne de guidage 6a et la deuxième colonne de guidage 6b sont maintenues à distance l'une de l'autre par deux tubes d'écartement 6c s'étendant sensiblement perpendiculairement à la première colonne de guidage 6a selon un axe sensiblement vertical. Dans l'exemple illustré aux Figures 1 et 2, le châssis 5 comprend deux dispositifs de maintien 5h agencés sur la barre transversale 5b et configurés chacun pour maintenir fermement une portion du cadre de guidage 6 dans un plan sensiblement sécant au plan dans lequel le châssis 5 s'étend et préférentiellement sensiblement perpendiculaire. Dans l'exemple illustré en Figure 1, chaque dispositif de maintien 5h enserre une portion de la première colonne de guidage 6a du cadre de guidage 6.In accordance with the Figure 3 , the guide frame 6 comprises at least a first transverse guide column 6a arranged substantially parallel to the transverse bar 5b of the frame 5 and a second guide column 6b arranged at a distance from the first guide column 6a in a substantially parallel manner. Each guide column 6a, 6b comprises carrying handles 6d. The first guide column 6a and the second guide column 6b are kept at a distance from each other by two spacer tubes 6c extending substantially perpendicular to the first guide column 6a along a substantially vertical axis. In the example shown in Figures 1 and 2 , the frame 5 comprises two holding devices 5h arranged on the transverse bar 5b and each configured to firmly hold a portion of the guide frame 6 in a plane substantially intersecting the plane in which the frame 5 extends and preferably substantially perpendicular. In the example shown in Figure 1 , each holding device 5h surrounds a portion of the first guide column 6a of the guide frame 6.

Avantageusement, comme illustré en Figure 3 notamment, le cadre de guidage 6 comprend un dispositif de réglage 7 comprenant un chariot mobile 7a configuré pour coulisser le long des colonnes de guidage 6a, 6b du cadre de guidage 6. Le chariot mobile 7a comprend des organes de roulement 7b, par exemple sous forme de galets, conformés pour coopérer avec la première colonne de guidage 6a et la deuxième colonne de guidage 6b. Le dispositif de réglage 7 comprend un organe de manœuvre de type volant 6f actionnant deux bielles de commande 6g entrainant en translation le chariot 7a via les organes de roulements 7b.Advantageously, as illustrated in Figure 3 in particular, the guide frame 6 comprises an adjustment device 7 comprising a movable carriage 7a configured to slide along the guide columns 6a, 6b of the guide frame 6. The movable carriage 7a comprises rolling members 7b, for example under the form of rollers, shaped to cooperate with the first guide column 6a and the second guide column 6b. The adjustment device 7 comprises a flywheel-type maneuvering member 6f actuating two control rods 6g driving the carriage 7a in translation via the bearing members 7b.

Le dispositif de réglage comprend un élément de réglage en hauteur 7c agencé sur le chariot mobile 7a. Selon une caractéristique de l'invention, l'élément de réglage en hauteur comprend une partie inférieure 7d sur laquelle translate une partie supérieure 7f sous l'action d'un organe de manœuvre 7g par exemple un volant. Avantageusement, selon l'invention et comme illustré en Figure 1, l'outil de meulage 3 et le moteur 2 sont configurés pour être déplacés en hauteur par l'intermédiaire de l'élément de réglage en hauteur 7c et transversalement le long du cadre de guidage 6 par l'intermédiaire du chariot mobile 7a.The adjustment device comprises a height adjustment element 7c arranged on the movable carriage 7a. According to one characteristic of the invention, the height adjustment element comprises a lower part 7d on which translates an upper part 7f under the action of a maneuvering member 7g, for example a steering wheel. Advantageously, according to the invention and as illustrated in Figure 1 , the grinding tool 3 and the motor 2 are configured to be moved in height by means of the height adjustment member 7c and transversely along the guide frame 6 by means of the movable carriage 7a.

En outre, la meuleuse 1 selon l'invention, comprend un dispositif de transmission 8, le moteur 2 à combustion interne étant accouplé à l'outil de meulage 3 par l'intermédiaire dudit dispositif de transmission 8, comme il est détaillé ci-après en référence à la Figure 4.In addition, the grinder 1 according to the invention comprises a transmission device 8, the internal combustion engine 2 being coupled to the grinding tool 3 by means of said transmission device 8, as detailed below. with reference to Figure 4 .

Conformément à la Figure 4, le dispositif de transmission 8 comprend une courroie de transmission 9 et un renvoi d'angle 10. La courroie de transmission 9 coopère avec un arbre d'entrainement de sortie 2a du moteur 2 indiqué en pointillé sur la Figure 4 pour entraîner en rotation le renvoi d'angle 10 selon un premier axe de rotation R1, ledit renvoi d'angle 10 étant configuré pour entraîner l'outil de meulage 3 selon un deuxième axe de rotation R2. Comme on peut le voir en Figure 4, le premier axe de rotation R1 et le deuxième axe de rotation R2 sont sensiblement orthogonaux, préférentiellement perpendiculaires et l'arbre d'entrainement de sortie 2a du moteur 2 s'étend selon un axe M1 colinéaire au premier axe de rotation R1. Avantageusement, le renvoi d'angle 10 comprend une première couronne (non représentée) entrainée en rotation par la courroie de transmission 8 selon le premier axe de rotation R1 et une deuxième couronne (non représentée) entrainée en rotation par la première couronne selon le deuxième axe de rotation R2. Dans l'exemple illustré en Figure 1, le dispositif de transmission 8 est agencé sur le chariot mobile 7a du cadre de guidage 6, ce qui permet son déplacement transversal d'un rail 100 à l'autre et son réglage en hauteur via l'élément de réglage en hauteur 7c monté sur le chariot mobile 7a.In accordance with the Figure 4 , the transmission device 8 comprises a transmission belt 9 and an angle transmission 10. The transmission belt 9 cooperates with an output drive shaft 2a of the engine 2 indicated in dotted lines on the figure. Figure 4 to drive the angle transmission 10 in rotation along a first axis of rotation R1, said angle transmission 10 being configured to drive the grinding tool 3 along a second axis of rotation R2. As can be seen in Figure 4 , the first axis of rotation R1 and the second axis of rotation R2 are substantially orthogonal, preferably perpendicular, and the output drive shaft 2a of the motor 2 extends along an axis M1 collinear with the first axis of rotation R1. Advantageously, the angle transmission 10 comprises a first ring gear (not shown) driven in rotation by the transmission belt 8 along the first axis of rotation R1 and a second ring gear (not shown) driven in rotation by the first ring gear according to the second axis of rotation R2. In the example shown in Figure 1 , the transmission device 8 is arranged on the carriage mobile 7a of the guide frame 6, which allows its transverse displacement from one rail 100 to another and its height adjustment via the height adjustment element 7c mounted on the mobile carriage 7a.

Conformément à la Figure 4, la meuleuse 1 comprend un dispositif de réglage d'inclinaison 11 configuré pour coopérer avec l'outil de meulage 3 de manière à permettre l'inclinaison dudit outil de meulage 3 selon une plage angulaire de 180° autour d'un profil de rail 100. Ainsi, l'outil de meulage 3 et préférentiellement uniquement la tête de meulage 4, est configuré pour pivoter par rapport à un axe médian vertical selon une amplitude angulaire de +/- 90° par l'intermédiaire du dispositif de réglage d'inclinaison 11. Dans l'exemple illustré en Figure 4, le dispositif de réglage d'inclinaison 11 est monté entre le dispositif de transmission 8 et l'outil de meulage 3 sur le premier axe de rotation R1 et est avantageusement également monté sur le chariot mobile 7a de sorte que ledit dispositif de réglage d'inclinaison 11 est configuré pour être déplacé en hauteur par l'intermédiaire de l'élément de réglage en hauteur 7c et transversalement le long du cadre de guidage 6 par l'intermédiaire du chariot mobile 7a. Comme on peut le voir en détail en Figure 4, le dispositif de réglage d'inclinaison 11 comprend un carter 11a sur lequel est agencé un élément d'affichage 11b de l'inclinaison de l'outil de meulage 3 et un organe de manœuvre 11c. Avantageusement, l'élément d'affichage 11b est un cadran permettant d'évaluer visuellement et précisément l'angle d'inclinaison de l'outil de meulage 3. Par ailleurs, le mouvement d'inclinaison est commandé par l'organe de manœuvre 11c qui est par exemple un volant d'inclinaison, configuré pour entraîner un élément de transmission de mouvement (non représenté), qui entraine lui-même l'outil de meulage 3 et préférentiellement la tête de meulage 4.In accordance with the Figure 4 , the grinder 1 comprises an inclination adjustment device 11 configured to cooperate with the grinding tool 3 so as to allow the inclination of said grinding tool 3 according to an angular range of 180 ° around a rail profile 100 Thus, the grinding tool 3 and preferably only the grinding head 4, is configured to pivot with respect to a vertical central axis according to an angular amplitude of +/- 90 ° by means of the inclination adjustment device. 11. In the example shown in Figure 4 , the inclination adjustment device 11 is mounted between the transmission device 8 and the grinding tool 3 on the first axis of rotation R1 and is advantageously also mounted on the mobile carriage 7a so that said adjustment device of inclination 11 is configured to be moved in height by means of the height adjustment element 7c and transversely along the guide frame 6 by means of the movable carriage 7a. As can be seen in detail in Figure 4 , the inclination adjustment device 11 comprises a housing 11a on which is arranged a display element 11b of the inclination of the grinding tool 3 and an operating member 11c. Advantageously, the display element 11b is a dial making it possible to visually and precisely assess the angle of inclination of the grinding tool 3. Furthermore, the inclination movement is controlled by the operating member 11c. which is for example a tilting wheel, configured to drive a movement transmission element (not shown), which itself drives the grinding tool 3 and preferably the grinding head 4.

Comme expliqué plus haut dans la description, la meuleuse 1 comprend un outil de meulage 3 illustré en détail aux Figures 5 à 13 selon deux modes de réalisation. Quel que soit le mode de réalisation de l'outil de meulage 3, l'outil de meulage 3 comprend un carter 3a. Avantageusement, la tête de meulage 4 comprend un capot 12 de protection de la meule 4a couvrant au moins partiellement la meule 4a. En outre, quel que soit le mode de réalisation de l'outil de meulage 3, l'outil de meulage 3 et préférentiellement la tête de meulage 4, est monté pivotant sur le châssis 5 et est configuré pour pivoter autour du premier axe R1 sensiblement perpendiculaire au deuxième axe de rotation R2 de la meule 4a dans une plage angulaire d'au moins sensiblement 180° comme expliqué plus haut grâce au dispositif de réglage d'inclinaison 11 tandis que le moteur 2 est monté sur le châssis 6 de manière non-pivotante et indépendante par rapport à l'outil de meulage 3.As explained above in the description, the grinder 1 comprises a grinding tool 3 illustrated in detail in Figures 5 to 13 according to two embodiments. Regardless of the embodiment of the grinding tool 3, the grinding tool 3 comprises a housing 3a. Advantageously, the grinding head 4 comprises a cover 12 for protecting the grinding wheel 4a at least partially covering the grinding wheel 4a. In addition, whatever the embodiment of the grinding tool 3, the grinding tool 3 and preferably the grinding head 4, is mounted to pivot on the frame 5 and is configured to pivot about the first axis R1 substantially. perpendicular to the second axis of rotation R2 of the grinding wheel 4a in an angular range of at least substantially 180 ° as explained above thanks to the inclination adjustment device 11 while the motor 2 is mounted on the frame 6 in a non- swiveling and independent of the grinding tool 3.

Quel que soit le mode de réalisation de l'outil de meulage 3, la tête de meulage 4 comprend une meule 4a amovible configurée pour coopérer avec un dispositif de fixation 4d, 4f de meule interchangeable adapté au type de meule 4a. En l'espèce, aux Figures 5 à 7 est illustré un premier mode de réalisation de l'outil de meulage 3 selon lequel la meule 4a est meule lapidaire. Ainsi, le dispositif de fixation est un arbre d'adaptation 4d conformé pour coopérer avec l'arbre d'entrainement 4c, comme représenté en Figure 5. Aux Figures 8 à 10, est illustré le deuxième mode de réalisation de l'outil de meulage 3 selon lequel la meule 4a est une meule à boisseau. Ainsi, le dispositif de fixation est un flasque de fixation 4f conformé pour coopérer avec l'arbre d'entrainement4c.Whatever the embodiment of the grinding tool 3, the grinding head 4 comprises a removable grinding wheel 4a configured to cooperate with an interchangeable grinding wheel fixing device 4d, 4f adapted to the type of grinding wheel 4a. In this case, to Figures 5 to 7 A first embodiment of the grinding tool 3 is illustrated, according to which the grinding wheel 4a is a lapidary grinding wheel. Thus, the fixing device is an adapter shaft 4d shaped to cooperate with the drive shaft 4c, as shown in Figure 5 . To the Figures 8 to 10 , is illustrated the second embodiment of the grinding tool 3 according to which the wheel 4a is a cup wheel. Thus, the fixing device is a fixing flange 4f shaped to cooperate with the drive shaft 4c.

Préférentiellement, selon le deuxième mode de réalisation de l'outil de meulage 3, le capot 12 de protection peut être réalisé en deux parties comme illustré aux Figures 12 et 13. Avantageusement, l'outil de meulage comprend un support de capot 3b comme illustré en Figure 11 agencé dans le prolongement du carter 3a de l'outil de meulage 3 entre le carter 3a et la meule 4a.Preferably, according to the second embodiment of the grinding tool 3, the protective cover 12 can be made in two parts as illustrated in Figures 12 and 13 . Advantageously, the grinding tool comprises a cover support 3b as illustrated in Figure 11 arranged in the extension of the housing 3a of the grinding tool 3 between the housing 3a and the grinding wheel 4a.

Comme illustré en Figure 12, la première partie 12a du capot 12 est conformée pour couvrir une partie supérieure de la meule 4a. La première partie 12a du capot est configurée pour se déplacer en translation selon un axe de translation colinéaire à l'axe d'entrainement en rotation R2 de la meule 4a entre une position de repli illustré en Figure 13 dans laquelle la première partie 12a est totalement agencée sur le carter 3a de l'outil de meulage 3, et une position de déploiement illustré en Figure 12 et dans laquelle une partie supérieure de la meule 4a est recouverte par la première partie 12a du capot 12, la première partie 12a s'étendant dans le prolongement du carter 3a de l'outil de meulage 3. De plus, la première partie 12a du capot 12 de protection est montée sur le carter 3a par l'intermédiaire d'un premier système de serrage 12c configuré pour fixer la première partie 12a et autoriser son coulissement. La course de translation de la première partie 12a est déterminée par la longueur de la rainure 12d dans laquelle est agencé le premier système de serrage 12c.As shown in Figure 12 , the first part 12a of the cover 12 is shaped to cover an upper part of the grinding wheel 4a. The first part 12a of the cover is configured to move in translation along a translation axis collinear with the rotational drive axis R2 of the grinding wheel 4a between a folded position illustrated in Figure 13 in which the first part 12a is completely arranged on the housing 3a of the grinding tool 3, and a deployment position illustrated in Figure 12 and in which an upper part of the grinding wheel 4a is covered by the first part 12a of the cover 12, the first part 12a extending in the extension of the housing 3a of the grinding tool 3. In addition, the first part 12a of the protective cover 12 is mounted on the housing 3a by means of a first clamping system 12c configured to fix the first part 12a and allow it to slide. The translational stroke of the first part 12a is determined by the length of the groove 12d in which the first clamping system 12c is arranged.

Conformément aux Figures 12 et 13, la deuxième partie de capot 12 de protection est mobile en translation selon un axe de translation colinéaire à l'axe d'entrainement R2 de la meule 4a entre une position de repli (Figure 13) dans laquelle la deuxième partie 12b est totalement agencée sur la première partie 12a du capot 12 de protection et une position de déploiement (Figure 12) dans laquelle la deuxième partie 12b s'étend dans le prolongement de la première partie 12a du capot 12 de protection. La course de translation de la deuxième partie 12b est déterminée par la longueur de la rainure 12g dans laquelle est agencé un deuxième système de serrage 12f.In accordance with Figures 12 and 13 , the second protective cover part 12 is movable in translation along a translation axis colinear with the drive axis R2 of the grinding wheel 4a between a folded position ( Figure 13 ) in which the second part 12b is completely arranged on the first part 12a of the protective cover 12 and a deployment position ( Figure 12 ) in which the second part 12b extends in the extension of the first part 12a of the protective cover 12. The translational stroke of the second part 12b is determined by the length of the groove 12g in which a second clamping system 12f is arranged.

Conformément à l'invention, la meuleuse 1 peut se décomposer en quatre sous-ensembles démontables et indépendants structurellement les uns par rapport aux autres, le premier sous-ensemble comprenant le châssis 5, le deuxième sous-ensemble comprenant le cadre de guidage 6 et le chariot mobile 7a et l'élément de réglage 7, le troisième sous-ensemble comprenant le moteur 2 à combustion interne et le quatrième sous-ensemble comprenant le dispositif de réglage d'inclinaison 11, le dispositif de transmission 8 et l'outil de meulage 3.According to the invention, the grinder 1 can be broken down into four sub-assemblies which can be dismantled and structurally independent from one another, the first sub-assembly comprising the frame 5, the second sub-assembly comprising the guide frame 6 and the mobile carriage 7a and the adjustment element 7, the third sub-assembly comprising the internal combustion engine 2 and the fourth sub-assembly comprising the inclination adjustment device 11, the transmission device 8 and the grinding 3.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés aux figures annexées. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is not limited to the embodiments described and shown in the appended figures. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (11)

  1. A rail (100) grinder (1) configured to travel on a railway or similar track, and comprising:
    - at least one inner combustion engine (2),
    - at least one grinding tool (3) comprising a grinding head (4) including a grinding wheel (4a) driven in rotation according to an axis of rotation (R2) by the inner combustion engine (2),
    - a chassis (5) intended to be arranged on the two rails (100) of a track, said chassis (5) being configured to be movable in translation in at least one first direction (D1) along the rails and to displace the engine (2) and the grinding tool (3) in at least one second direction (D2), substantially perpendicular to the first direction (D1) and transversely to the rails (100),
    characterized in that the grinding tool (3) is pivotally mounted on the chassis (5) and being configured to pivot about a first substantially secant axis of rotation (R1) and preferably perpendicular to the axis of rotation (R2) of the grinding wheel (4a) in an angular range of at least substantially 180°, while the engine (2) is mounted on the chassis (5) in a non-pivoting and independent manner compared to the grinding tool (3).
  2. The grinder according to claim 1, wherein the chassis (5) comprises a guiding frame (6) configured to displace the engine (2) and the grinding tool (3) in at least the second direction (D2).
  3. The grinder according to claim 2, wherein the guiding frame (6) comprises an adjustment device (7) comprising a movable carriage (7a) configured to slide along the guiding frame (6).
  4. The grinder according to claim 3, wherein at least the engine (2) and the grinding tool (3) are positioned on the movable carriage (7a).
  5. The grinder according to any one of claims 3 or 4, wherein the guiding frame (6) comprises a height adjustment element (7c) arranged on the movable carriage (7a).
  6. The grinder according to any one of claims 2 to 5, wherein the guiding frame (6) comprises at least one first transverse guiding column (6a) arranged substantially parallel to a transverse bar (5b) equipping the chassis (5) and a second guiding column (6b) arranged at a distance from the first guiding column (6a) in a substantially parallel manner, the first guiding column (6a) and the second guiding column (6b) being kept at a distance from one another by at least one spacing tube (6c) extending substantially perpendicularly to the first guiding column (6a) according to a substantially vertical axis.
  7. The grinder according to any one of the preceding claims, wherein the engine (2) is arranged at the rear of the chassis (5) while the grinding tool (3) is arranged at the front of the chassis (5).
  8. The grinder according to any one of the preceding claims, wherein the grinding tool (3) comprises a casing (3a) and the grinding head (4) comprising a protection cowl (12) of the grinding wheel (4a), said protection cowl (12) being carried out in two portions (12a, 12b).
  9. The grinder according to the preceding claim, wherein the first portion (12a) of the cowl (12) is shaped to cover an upper portion of the grinding wheel (4a) and configured to be displaced in translation according to an axis of translation collinear with the axis of rotation (R2) of the grinding wheel (4a) between a folding position in which the first portion (12a) of the cowl (12) is completely arranged on the casing (3a) of the grinding tool (3), and a deployment position in which an upper portion of the grinding wheel (4a) is covered by the first portion (12a) of the cowl (12), the first portion (12a) of the cowl (12) extending into the expansion of the casing (3a) of the grinding tool (3).
  10. The grinder according to any one of the preceding claims, comprising a transmission device (8) preferably comprising a transmission belt (9) and an angular transmission (10), the inner combustion engine (2) being coupled to the grinding tool (3) via said transmission device (8).
  11. The grinder according to any one of the preceding claims, wherein the grinding wheel (4a) is removable and interchangeable and can be for example a grinding cup or a grinding stone.
EP18214884.1A 2018-01-24 2018-12-20 Rail grinder Active EP3517682B1 (en)

Applications Claiming Priority (1)

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FR1850552A FR3077077B1 (en) 2018-01-24 2018-01-24 TRACK GRINDER

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EP3517682A1 EP3517682A1 (en) 2019-07-31
EP3517682B1 true EP3517682B1 (en) 2020-10-07

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AU2019326848A1 (en) * 2018-08-30 2021-03-11 Robel Bahnbaumaschinen Gmbh Processing machine and method for processing a rail track
DE102021104309A1 (en) * 2021-02-23 2022-08-25 Andrea Rüdt Device and method for material processing of the frog point of a switch arrangement
CN113481769B (en) * 2021-06-29 2023-03-14 苏州睿友智能装备有限公司 Intelligent steel rail profile grinding equipment

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FR3077077A1 (en) 2019-07-26
FR3077077B1 (en) 2019-12-20
CN110067161A (en) 2019-07-30
CN110067161B (en) 2022-03-01
EP3517682A1 (en) 2019-07-31

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