EP1178154B1 - Rail profile grinder - Google Patents

Rail profile grinder Download PDF

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Publication number
EP1178154B1
EP1178154B1 EP01420165A EP01420165A EP1178154B1 EP 1178154 B1 EP1178154 B1 EP 1178154B1 EP 01420165 A EP01420165 A EP 01420165A EP 01420165 A EP01420165 A EP 01420165A EP 1178154 B1 EP1178154 B1 EP 1178154B1
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EP
European Patent Office
Prior art keywords
chassis
rail
grinding
engine
grinding machine
Prior art date
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Expired - Lifetime
Application number
EP01420165A
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German (de)
French (fr)
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EP1178154A1 (en
Inventor
M. Maurice Huboud-Peron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Turripinoise de Mecanique STUMEC SA
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Societe Turripinoise de Mecanique STUMEC SA
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Publication of EP1178154A1 publication Critical patent/EP1178154A1/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 a rail profile grinder, intended for new work and maintenance of railway tracks and similar raceways, especially in the transport sector railway, mining and handling.
  • a rail profile grinder is a machine designed for grind the head of a rail, mainly after track welding, with a view to to give the weld zone a profile identical to the current profile of the rail.
  • the grinding operations of a rail profile concement also well the top of the rail as the two sides of the rail head, twisted respectively on the inside and outside of the track.
  • the invention aims to improve a grinder rail profiles, of the type comprising a grinding head receiving a tool grinding abrasive, rotatably mounted about an axis and able to also describe a up / down movement parallel to its axis of rotation, the head grinding being carried by a chassis provided at its ends with means of rolling, guiding and holding on a rail of a railway track or the like, the grinder still comprising motorized means for driving in rotation of the grinding tool about its axis, and of the operating means for back and forth movement of the grinder in the direction longitudinal of the rail to be ground, the chassis being pivotable with the grinding head around a longitudinal axis so as to allow the grinding of the above the rail, or the side of the rail head on the inside of the track, or the side of the rail head on the outside of the track.
  • the chassis and the grinding head carried by this chassis can be tilted at will on one side or the other of the rail, from a substantially vertical starting position, to allow the grinding of the top of the rail or of one of the sides of the mushroom rail.
  • the engine which can be a four-stroke internal combustion engine, is carried by the operating arm of the grinder, kept in a vertical plane, and not carried by the chassis of the grinder, so that this motor remains substantially straight, even if the chassis is tilted.
  • a complex, unreliable and costly motion transmission which in the implementation according to the mentioned German patent application successively includes: a flexible shaft, a pinion angle gear conical, a universal joint and a belt.
  • the present invention aims to avoid all these drawbacks, by providing a simple and reliable solution for motion transmission between the motor and the grinding tool, while limiting the inclination of this motor at low angle values, ensuring good operation and longevity of said engine.
  • the invention also aims to provide a grinder of rail profiles allowing a more ergonomic and less working position tiring for the operator.
  • the invention essentially relates to a grinder rail profiles of the kind indicated in the introduction, in which the means motors for rotating the grinding tool consist of a internal combustion engine, with horizontal output shaft, the engine being fixed on a support which is articulated around a longitudinal axis, on a balancing assembly itself mounted to pivot about a longitudinal axis on the chassis, and designed to occupy in use a horizontal position bearing on the other rail of the track, while the horizontal output shaft of the motor is linked to the grinding head carried by the chassis by a set transmission which includes a transmission housing forming a kind of connecting rod, articulated between the engine output shaft and a horizontal axis linked to the frame or to the grinding head, so as to limit the inclination of the support to low angle values.
  • the means motors for rotating the grinding tool consist of a internal combustion engine, with horizontal output shaft, the engine being fixed on a support which is articulated around a longitudinal axis, on a balancing assembly itself mounted to pivot about a longitudinal axis on the chassis, and designed to
  • the invention proposes a particular mounting of the heat engine, this engine being fixed on a support pivotally mounted, around a horizontal axis, on a balancing assembly itself occupying an invariably horizontal position when using the grinder.
  • the engine is also linked to the chassis by the transmission assembly which forms a kind of connecting rod.
  • the mounting of the heat engine is achieved by an articulated device forming a kind of deformable quadrilateral, which is such that the inclination on the horizontal of the pivoting support of the engine, therefore of the engine itself, remains small and in particular does not not exceed about 15 °, while the chassis carrying the grinding head is tiltable ⁇ 90 ° on one side or the other, relative to its vertical center position.
  • spring means are provided which act on the pivoting support of the engine to compensate for the weight of this engine.
  • These spring means which relieve the efforts to be exerted by the operator, can be produced in the form of a gas spring, or any other type, articulated between the balancing assembly and the pivoting motor support.
  • the transmission assembly includes, in a form of embodiment of the invention, a drive gear carried by the output shaft horizontal of the engine, a toothed belt housed in the housing transmission, a receiving gear wedged on a horizontal shaft mounted rotating along the horizontal axis of articulation of the transmission casing on the chassis or on the grinding head, and a bevel gear with bevel gears linking the latter shaft to a sleeve coaxial with the grinding tool, and linked by splines on a shaft carrying the grinding tool.
  • the chassis has two offset longitudinal sections, the horizontal shaft mounted along the axis of articulation of the transmission housing entering the head of grinding at the level of the “offset” existing between the two sections of the frame.
  • the assembly balancing comprises, on the one hand, a hoop connecting the ends together of the chassis, and pivoting by its own ends, around a longitudinal axis, relative to this chassis, and on the other hand a transverse balancing bar, detachably attached to the middle part of the arch, and provided with a roller or support roller provided to rest and roll on the other rail of the way.
  • the pivoting motor support can be articulated on a fixed yoke, it also, in the middle part of the arch, at a distance from the articulation axis of the roll bar on the chassis.
  • the maneuvering means for the reciprocating movement of the grinder advantageously comprise an adjustable operating arm, pivotally mounted about a longitudinal axis on the chassis, means being provided for blocking the operating arm in a selected angular position.
  • the operating arm can thus be oriented ⁇ 45 °, on either side of a middle position, to maintain an ergonomic position of use, even if the chassis, which carries this operating arm, is lying on the floor. horizontal.
  • the chassis of the grinder object of the invention carries, at each end, a set of two rollers for guiding parallel axes, mounted on a common support itself mounted rotating around a longitudinal axis relative to the end corresponding chassis, on which is also pivotally mounted a end of the balancing assembly, a gear link connecting the support of the guide rollers at the end of the balancing assembly, and / or to the chassis, so that the pivoting of this assembly relative to the chassis is accompanied by a proportional orientation of the guide rollers.
  • the inclination of the chassis and the grinding head is thus accompanied by a "automatic" orientation of the guide rollers, which assume a position adapted according to whether the inner or outer side of the mushroom is ground of the rail.
  • the rail profile grinder is intended for work on rails 1 and 2 of a railway track, and it is more particularly designed to profile the fungus 3 of one of the rails 1 of the track, on which this grinder is positioned and guided.
  • the grinder has an elongated frame 4, which is provided at its two ends, of two trains of three carrier rollers, respectively 5 and 6. At its ends, the chassis 4 is still provided with two sets of rollers guide, respectively 7 and 8.
  • the chassis 4 In its middle part, the chassis 4 carries a grinding head 9, and an adjustable operating arm 10.
  • a hoop 11 connects the two ends of the chassis 4, the hoop 11 being pivotally mounted about a longitudinal axis with respect to the chassis 4.
  • On the middle part of the arch 11 is removably attached to a bar cross balancing 12, provided with a roller or support roller 13 at its free end.
  • an internal combustion engine 14 such as a four-stroke explosion, intended for the rotational drive of an abrasive tool grinding 15, rotatably mounted in the grinding head 9 (see also Figure 7).
  • the grinder For its use, the grinder whose general structure comes to be described is placed on the track, the chassis 4 being mounted and guided on the rail 1 by the rollers 5, 6, 7 and 8, while the roller or roller 13 is supported on the other rail 2.
  • the grinding head 9 is thus positioned opposite the rail 3 mushroom 1.
  • the motor 14 is fixed on a support 16, oriented transversely, which is articulated around a longitudinal axis 17 on a yoke 18 itself fixed on the roll bar 11, in the middle part thereof, at a distance from the axis hinge 11 on the chassis 4.
  • This motor 14 has a shaft horizontal outlet 19, oriented longitudinally, which is connected to a casing transmission 20 forming a kind of connecting rod, articulated between the shaft 19 and a horizontal axis 21, parallel to the shaft 19 and linked to the chassis or the head of grinding 9.
  • the chassis 4 has two offset longitudinal sections, 4a and 4b respectively, the "setback" existing between these two sections 4a and 4b allowing the connection of the transmission casing 20 along the axis horizontal articulation 21, facing the end of the first section 4a of the chassis 4.
  • Figure 7 shows the detail of the transmission mechanism, which ensures, from the motor 14, the rotational drive of the grinding tool 15 around its axis 23:
  • the toothed belt 25 also passes over a receiving toothed wheel 26, wedged on a shaft 27 mounted rotating along the horizontal axis 21 and entering a bevel gearbox of the grinding head 9.
  • the shaft 27 carries a pinion conical 28, engaged with a conical ring gear 29 mounted according to the axis 23 of the grinding tool 15.
  • the toothed ring 29 is linked in rotation with a sleeve 30, mounted rotating along the axis 23 in bearings superimposed 31 and 32.
  • the sleeve 30 is itself linked in rotation, with possibility of axial sliding thanks to splines 33, with a shaft 34 which carries, at one end, the grinding tool 15.
  • An operating device with flywheel 35, with integrated stop, makes it possible to adjust the axial position of the shaft 34, therefore of the grinding tool 15, the grinding depth being thus adjustable.
  • the two carrier roller trains 5 and 6, provided respectively at the two ends of the chassis 4, are mounted fixed relative to this chassis 4, and serve as a reference point for grinding, leaning and rolling on the grinding surface of the mushroom 3 of the rail 1.
  • each set 7 or 8 comprises two guide rollers 36 with parallel axes, mounted on a common support 37, the spacing of the two guide rollers 36 being adjustable to adapt to the width of the head 3 of the rail 1.
  • the support 37 has a wide circular opening, in which is mounted, and immobilized in rotation, an internally toothed crown 38.
  • the corresponding end of the arch 11 is secured with a mounting block 39, which is pivotally mounted about an axis 40 integral with the end of the chassis 4.
  • the mounting block 39 has a circular hub 41, around which the support 37 is mounted rotating by its circular opening. In this position, the ring gear 38 integral with the support 37 comes into taken with a fixed pinion 42, integral with the axis 40, the number of teeth of the pinion 42 being equal to, or substantially equal to, half the number of teeth of crown 38.
  • the arm of maneuver 10 is pivotally mounted on the first section 4a of the chassis 4, around a longitudinal axis 43, so that it can be adjusted in a plane transverse, and means are provided for immobilizing said arm of operation 10 in the selected angular position.
  • These means comprise a transverse plate 44, integral with the chassis 4 and provided a light in an arc 45, crossed by a screw secured to the arm 10, on which is tightened a locking nut 46 carrying a handle 47.
  • the described grinder allows to grind the entire head 3 of the rail, i.e. grind the profile of this at an angle of 180 °, without the need to turn the machine, the operating arm 10 being in each case oriented so as to allow easy operation of the grinder, and the motor 14 always remaining straight or slightly inclined, so that its operation and longevity are guaranteed.
  • the operator no longer has to support the weight of the motor, occupies a more ergonomic working position, is subject to less vibration and less noise, and is further away from projections sparks.

Abstract

The railway rail profile grinder has a chassis (4) with rollers (5-8) at its ends to engage the rail (6) to be ground. a balance (11-134) engages on the other rail (2) of the track and is pivotally mounted on the chassis, which also has positioning arm (10). An internal combustion engine (14) can be fixed on a support (16) pivoted on the balancer. The motor output shaft has a transmission (20) to the grinding wheel.

Description

La présente invention conceme une meuleuse de profils de rails, destinée aux travaux neufs et à l'entretien des rails de voies ferrées et de chemins de roulement analogues, notamment dans le domaine des transports ferroviaires, des mines et de la manutention.The present invention relates to a rail profile grinder, intended for new work and maintenance of railway tracks and similar raceways, especially in the transport sector railway, mining and handling.

Une meuleuse de profils de rails est une machine conçue pour meuler le champignon d'un rail, principalement après soudage en voie, en vue de donner à la zone de soudure un profil identique au profil courant du rail. De façon habituelle, les opérations de meulage d'un profil de rail concement aussi bien le dessus du rail que les deux flancs du champignon du rail, toumés respectivement du côté intérieur et du côté extérieur de la voie.A rail profile grinder is a machine designed for grind the head of a rail, mainly after track welding, with a view to to give the weld zone a profile identical to the current profile of the rail. Of usual way, the grinding operations of a rail profile concement also well the top of the rail as the two sides of the rail head, twisted respectively on the inside and outside of the track.

Plus particulièrement, l'invention vise à perfectionner une meuleuse de profils de rails, du genre comprenant une tête de meulage recevant un outil abrasif de meulage, monté rotatif autour d'un axe et apte à décrire aussi un mouvement de montée/descente parallèlement à son axe de rotation, la tête de meulage étant portée par un châssis pourvu, à ses extrémités, de moyens de roulement, de guidage et de maintien sur un rail d'une voie ferrée ou analogue, la meuleuse comprenant encore des moyens motorisés pour l'entraínement en rotation de l'outil de meulage autour de son axe, et des moyens de manoeuvre pour le déplacement en va-et-vient de la meuleuse dans la direction longitudinale du rail à meuler, le châssis étant pivotant avec la tête de meulage autour d'un axe longitudinal de manière à permettre au choix le meulage du dessus du rail, ou du flanc de champignon du rail du côté intérieur de la voie, ou du flanc du champignon du rail du côté extérieur de la voie.More particularly, the invention aims to improve a grinder rail profiles, of the type comprising a grinding head receiving a tool grinding abrasive, rotatably mounted about an axis and able to also describe a up / down movement parallel to its axis of rotation, the head grinding being carried by a chassis provided at its ends with means of rolling, guiding and holding on a rail of a railway track or the like, the grinder still comprising motorized means for driving in rotation of the grinding tool about its axis, and of the operating means for back and forth movement of the grinder in the direction longitudinal of the rail to be ground, the chassis being pivotable with the grinding head around a longitudinal axis so as to allow the grinding of the above the rail, or the side of the rail head on the inside of the track, or the side of the rail head on the outside of the track.

Dans une telle machine, le châssis et la tête de meulage portée par ce châssis peuvent être inclinés à volonté d'un côté ou de l'autre du rail, à partir d'une position de départ sensiblement verticale, pour permettre le meulage du dessus du rail ou de l'un ou l'autre des flancs du champignon du rail.In such a machine, the chassis and the grinding head carried by this chassis can be tilted at will on one side or the other of the rail, from a substantially vertical starting position, to allow the grinding of the top of the rail or of one of the sides of the mushroom rail.

En ce qui conceme les moyens motorisés d'entraínement en rotation de l'outil de meulage, certaines meuleuses utilisent un moteur à combustion interne, ce qui constitue en soi une solution intéressante car les meuleuses sont, le plus souvent, utilisées en des lieux extérieurs où l'on ne dispose pas de source d'énergie électrique ou hydraulique. Le recours à un moteur thermique pose toutefois des problèmes spécifiques, pour les meuleuses du genre ici concerné. Regarding the motorized drive means in rotation of the grinding tool, some grinders use a internal combustion, which is in itself an interesting solution because the grinders are most often used in outdoor locations where has no electric or hydraulic power source. The use of a However, the engine poses specific problems for grinders of the kind here concerned.

Ainsi, dans une meuleuse de ce genre produite antérieurement par le Demandeur, et commercialisée sous la dénomination « MP 12 », le moteur thermique est directement porté par le châssis, l'arbre de sortie du moteur étant parallèle à l'axe de rotation de l'outil de meulage. Il en résulte que ce moteur s'incline avec le châssis et avec la tête de meulage, lorsque ces parties sont utilisées en position inclinée. Or le fonctionnement d'un moteur à combustion interne est mis en cause par une inclinaison trop forte, qui pose notamment des problèmes de carburation et de lubrification, pouvant conduire à une réduction de la durée de vie du moteur.So in a grinder of this kind produced previously by the Applicant, and marketed under the name "MP 12", the engine is directly carried by the chassis, the motor output shaft being parallel to the axis of rotation of the grinding tool. As a result, this motor tilts with the chassis and with the grinding head, when these parts are used in an inclined position. However, the operation of a internal combustion is called into question by an excessive tilt, which poses in particular problems of carburation and lubrication, which can lead a reduction in engine life.

Dans une autre réalisation connue, décrite dans la demande de brevet allemand DE-A-19518457, le moteur, qui peut être un moteur à combustion interne à quatre temps, est porté par le bras de manoeuvre de la meuleuse, maintenu dans un plan vertical, et non pas porté par le châssis de la meuleuse, de sorte que ce moteur reste sensiblement droit, même si le châssis est incliné. Toutefois, une telle réalisation nécessite, entre l'arbre de sortie du moteur et l'outil de meulage, une transmission de mouvement complexe, peu fiable et coûteuse, qui dans la réalisation selon la demande de brevet allemand mentionnée comprend successivement : un arbre flexible, un renvoi d'angle à pignons coniques, un joint de cardan et une courroie.In another known embodiment, described in the application for German patent DE-A-19518457, the engine, which can be a four-stroke internal combustion engine, is carried by the operating arm of the grinder, kept in a vertical plane, and not not carried by the chassis of the grinder, so that this motor remains substantially straight, even if the chassis is tilted. However, such realization requires, between the motor output shaft and the grinding, a complex, unreliable and costly motion transmission, which in the implementation according to the mentioned German patent application successively includes: a flexible shaft, a pinion angle gear conical, a universal joint and a belt.

La présente invention vise à éviter tous ces inconvénients, en fournissant une solution simple et fiable pour la transmission du mouvement entre le moteur et l'outil de meulage, tout en limitant l'inclinaison de ce moteur à des valeurs d'angle faibles, garantissant le bon fonctionnement et la longévité dudit moteur.The present invention aims to avoid all these drawbacks, by providing a simple and reliable solution for motion transmission between the motor and the grinding tool, while limiting the inclination of this motor at low angle values, ensuring good operation and longevity of said engine.

L'invention a également pour objectif de fournir une meuleuse de profils de rails permettant une position de travail plus ergonomique et moins fatiguante pour l'opérateur.The invention also aims to provide a grinder of rail profiles allowing a more ergonomic and less working position tiring for the operator.

A cet effet, l'invention a essentiellement pour objet une meuleuse de profils de rails du genre indiqué en introduction, dans laquelle les moyens moteurs d'entraínement en rotation de l'outil de meulage sont constitués par un moteur à combustion interne, avec arbre de sortie horizontal, le moteur étant fixé sur un support qui est articulé autour d'un axe longitudinal, sur un ensemble d'équilibrage lui-même monté pivotant autour d'un axe longitudinal sur le châssis, et prévu pour occuper en utilisation une position horizontale prenant appui sur l'autre rail de la voie, tandis que l'arbre de sortie horizontal du moteur est lié à la tête de meulage portée par le châssis par un ensemble de transmission qui comprend un carter de transmission formant une sorte de bielle, articulée entre l'arbre de sortie du moteur et un axe horizontal lié au châssis ou à la tête de meulage, de manière à limiter l'inclinaison du support à des valeurs d'angle faibles.To this end, the invention essentially relates to a grinder rail profiles of the kind indicated in the introduction, in which the means motors for rotating the grinding tool consist of a internal combustion engine, with horizontal output shaft, the engine being fixed on a support which is articulated around a longitudinal axis, on a balancing assembly itself mounted to pivot about a longitudinal axis on the chassis, and designed to occupy in use a horizontal position bearing on the other rail of the track, while the horizontal output shaft of the motor is linked to the grinding head carried by the chassis by a set transmission which includes a transmission housing forming a kind of connecting rod, articulated between the engine output shaft and a horizontal axis linked to the frame or to the grinding head, so as to limit the inclination of the support to low angle values.

Ainsi, l'invention propose un montage particulier du moteur thermique, ce moteur étant fixé sur un support monté pivotant, autour d'un axe horizontal, sur un ensemble d'équilibrage occupant lui-même une position invariablement horizontale lors de l'utilisation de la meuleuse. Le moteur est aussi lié au châssis par l'ensemble de transmission qui forme une sorte de bielle. Ainsi, le montage du moteur thermique est réalisé par un dispositif articulé formant une sorte de quadrilatère déformable, qui est tel que l'inclinaison sur l'horizontale du support pivotant du moteur, donc du moteur lui-même, reste faible et en particulier ne dépasse pas environ 15°, alors que le châssis portant la tête de meulage est inclinable de ± 90° d'un côté ou de l'autre, par rapport à sa position médiane verticale.Thus, the invention proposes a particular mounting of the heat engine, this engine being fixed on a support pivotally mounted, around a horizontal axis, on a balancing assembly itself occupying an invariably horizontal position when using the grinder. The engine is also linked to the chassis by the transmission assembly which forms a kind of connecting rod. Thus, the mounting of the heat engine is achieved by an articulated device forming a kind of deformable quadrilateral, which is such that the inclination on the horizontal of the pivoting support of the engine, therefore of the engine itself, remains small and in particular does not not exceed about 15 °, while the chassis carrying the grinding head is tiltable ± 90 ° on one side or the other, relative to its vertical center position.

Avantageusement, des moyens à ressort sont prévus, qui agissent sur le support pivotant du moteur thermique pour compenser le poids de ce moteur. Ces moyens à ressort, qui soulagent les efforts à exercer par l'opérateur, sont réalisables sous la forme d'un ressort à gaz, ou de tout autre type, articulé entre l'ensemble d'équilibrage et le support pivotant du moteur.Advantageously, spring means are provided which act on the pivoting support of the engine to compensate for the weight of this engine. These spring means, which relieve the efforts to be exerted by the operator, can be produced in the form of a gas spring, or any other type, articulated between the balancing assembly and the pivoting motor support.

L'ensemble de transmission comprend, dans une forme de réalisation de l'invention, une roue dentée motrice portée par l'arbre de sortie horizontal du moteur, une courroie crantée logée dans le carter de transmission, une roue dentée réceptrice calée sur un arbre horizontal monté tournant suivant l'axe horizontal d'articulation du carter de transmission sur le châssis ou sur la tête de meulage, et un renvoi d'angle à pignons coniques liant ce dernier arbre à un manchon coaxial à l'outil de meulage, et lié par des cannelures à un arbre portant l'outil de meulage.The transmission assembly includes, in a form of embodiment of the invention, a drive gear carried by the output shaft horizontal of the engine, a toothed belt housed in the housing transmission, a receiving gear wedged on a horizontal shaft mounted rotating along the horizontal axis of articulation of the transmission casing on the chassis or on the grinding head, and a bevel gear with bevel gears linking the latter shaft to a sleeve coaxial with the grinding tool, and linked by splines on a shaft carrying the grinding tool.

On obtient ainsi un ensemble de transmission simple, léger, protégé, ne nécessitant pas d'entretien et fiable. Avantageusement, pour réaliser commodément l'entrée du mouvement dans la tête de meulage, le châssis possède deux tronçons longitudinaux décalés, l'arbre horizontal monté suivant l'axe d'articulation du carter de transmission entrant dans la tête de meulage au niveau du « décrochement » existant entre les deux tronçons du châssis.This gives a simple, light transmission assembly, protected, maintenance-free and reliable. Advantageously, for the movement is conveniently entered into the grinding head, the chassis has two offset longitudinal sections, the horizontal shaft mounted along the axis of articulation of the transmission housing entering the head of grinding at the level of the “offset” existing between the two sections of the frame.

Selon une autre caractéristique avantageuse, l'ensemble d'équilibrage comprend, d'une part, un arceau reliant entre elles les extrémités du châssis, et pivotant par ses propres extrémités, autour d'un axe longitudinal, relativement à ce châssis, et d'autre part une barre d'équilibrage transversale, fixée de façon démontable sur la partie médiane de l'arceau, et pourvue d'un galet ou rouleau d'appui prévu pour s'appuyer et rouler sur l'autre rail de la voie. Le support pivotant du moteur peut être articulé sur une chape fixée, elle aussi, dans la partie médiane de l'arceau, à distance de l'axe d'articulation de l'arceau sur le châssis.According to another advantageous characteristic, the assembly balancing comprises, on the one hand, a hoop connecting the ends together of the chassis, and pivoting by its own ends, around a longitudinal axis, relative to this chassis, and on the other hand a transverse balancing bar, detachably attached to the middle part of the arch, and provided with a roller or support roller provided to rest and roll on the other rail of the way. The pivoting motor support can be articulated on a fixed yoke, it also, in the middle part of the arch, at a distance from the articulation axis of the roll bar on the chassis.

Selon encore une autre caractéristique, compte tenu de ce que le châssis de la meuleuse objet de l'invention peut être incliné sur ± 90° d'un côté ou de l'autre, par rapport à sa position médiane verticale, les moyens de manoeuvre pour le déplacement en va-et-vient de la meuleuse comprennent avantageusement un bras de manoeuvre orientable, monté pivotant autour d'un axe longitudinal sur le châssis, des moyens étant prévus pour le blocage du bras de manoeuvre dans une position angulaire sélectionnée. Le bras de manoeuvre peut ainsi être orienté de ± 45°, de part et d'autre d'une position médiane, pour conserver une position d'utilisation ergonomique, même si le châssis, qui porte ce bras de manoeuvre, est couché à l'horizontale.According to yet another characteristic, taking into account that the chassis of the grinder which is the subject of the invention can be inclined over ± 90 ° on one side or the other, relative to its vertical median position, the maneuvering means for the reciprocating movement of the grinder advantageously comprise an adjustable operating arm, pivotally mounted about a longitudinal axis on the chassis, means being provided for blocking the operating arm in a selected angular position. The operating arm can thus be oriented ± 45 °, on either side of a middle position, to maintain an ergonomic position of use, even if the chassis, which carries this operating arm, is lying on the floor. horizontal.

Suivant une dernière caractéristique avantageuse, le châssis de la meuleuse objet de l'invention porte, à chaque extrémité, un ensemble de deux galets de guidage d'axes parallèles, montés sur un support commun lui-même monté tournant autour d'un axe longitudinal relativement à l'extrémité correspondante du châssis, sur laquelle est aussi montée pivotante une extrémité de l'ensemble d'équilibrage, une liaison par engrenages liant le support des galets de guidage à l'extrémité de l'ensemble d'équilibrage, et/ou au châssis, de telle sorte que le pivotement de cet ensemble relativement au châssis s'accompagne d'une orientation proportionnelle des galets de guidage. L'inclinaison du châssis et de la tête de meulage s'accompagne ainsi d'une orientation « automatique » des galets de guidage, qui prennent une position adaptée suivant que l'on meule le flanc intérieur ou extérieur du champignon du rail. According to a final advantageous characteristic, the chassis of the grinder object of the invention carries, at each end, a set of two rollers for guiding parallel axes, mounted on a common support itself mounted rotating around a longitudinal axis relative to the end corresponding chassis, on which is also pivotally mounted a end of the balancing assembly, a gear link connecting the support of the guide rollers at the end of the balancing assembly, and / or to the chassis, so that the pivoting of this assembly relative to the chassis is accompanied by a proportional orientation of the guide rollers. The inclination of the chassis and the grinding head is thus accompanied by a "automatic" orientation of the guide rollers, which assume a position adapted according to whether the inner or outer side of the mushroom is ground of the rail.

L'invention sera mieux comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple, une forme d'exécution de cette meuleuse de profils de rails :

  • Figure 1 est une vue d'ensemble, en perspective, d'une meuleuse conforme à la présente invention, en position de meulage du dessus d'un rail ;
  • Figure 2 est une vue en bout de la meuleuse, dans la position d'utilisation de figure 1 ;
  • Figure 3 est une vue d'ensemble, en perspective, de la meuleuse des figures précédentes, en position de meulage du flanc du champignon du rail, du côté intérieur de la voie.
  • Figure 4 est une vue en bout de la meuleuse, dans la position d'utilisation de figure 3 ;
  • Figure 5 est une vue d'ensemble, en perspective, de la meuleuse des figures précédentes, en position de meulage du flanc du champignon du rail, du côté extérieur de la voie ;
  • Figure 6 est une vue en bout de la meuleuse, dans la position d'utilisation de figure 5 ;
  • Figure 7 représente, en coupe, un détail du mécanisme d'entraínement de cette meuleuse ;
  • Figure 8 est une vue de détail en coupe, suivant VIII-VIII de figure 9, montrant le détail des galets de guidage et de leur montage ;
  • Figure 9 est une vue en coupe suivant IX-IX de figure 8, correspondant au même détail.
    • The invention will be better understood with the aid of the following description, with reference to the appended schematic drawing representing, by way of example, an embodiment of this rail profile grinder:
  • Figure 1 is an overall perspective view of a grinder according to the present invention, in the grinding position from above a rail;
  • Figure 2 is an end view of the grinder, in the position of use of Figure 1;
  • Figure 3 is an overall perspective view of the grinder of the previous figures, in the grinding position of the side of the head of the rail, on the inside of the track.
  • Figure 4 is an end view of the grinder, in the position of use of Figure 3;
  • Figure 5 is an overall perspective view of the grinder of the previous figures, in the grinding position of the side of the head of the rail, on the outside of the track;
  • Figure 6 is an end view of the grinder, in the position of use of Figure 5;
  • Figure 7 shows, in section, a detail of the drive mechanism of this grinder;
  • Figure 8 is a detail view in section along VIII-VIII of Figure 9, showing the detail of the guide rollers and their mounting;
  • Figure 9 is a sectional view along IX-IX of Figure 8, corresponding to the same detail.

    • Comme le montrent les figures 1 à 6, la meuleuse de profils de rails est destinée à des travaux sur des rails 1 et 2 d'une voie ferrée, et elle est plus particulièrement conçue pour réaliser le profilage du champignon 3 de l'un des rails 1 de la voie, sur laquelle cette meuleuse est positionnée et guidée.As shown in Figures 1 to 6, the rail profile grinder is intended for work on rails 1 and 2 of a railway track, and it is more particularly designed to profile the fungus 3 of one of the rails 1 of the track, on which this grinder is positioned and guided.

    La meuleuse possède un châssis allongé 4, qui est pourvu, à ses deux extrémités, de deux trains de trois galets porteurs, respectivement 5 et 6. A ses extrémités, le châssis 4 est encore pourvu de deux ensembles de galets de guidage, respectivement 7 et 8.The grinder has an elongated frame 4, which is provided at its two ends, of two trains of three carrier rollers, respectively 5 and 6. At its ends, the chassis 4 is still provided with two sets of rollers guide, respectively 7 and 8.

    Dans sa partie médiane, le châssis 4 porte une tête de meulage 9, et un bras de manoeuvre 10 orientable.In its middle part, the chassis 4 carries a grinding head 9, and an adjustable operating arm 10.

    Un arceau 11 relie les deux extrémités du châssis 4, l'arceau 11 étant monté pivotant autour d'un axe longitudinal par rapport au châssis 4. Sur la partie médiane de l'arceau 11 est fixée, de façon démontable, une barre d'équilibrage transversale 12, pourvue d'un galet ou rouleau d'appui 13 à son extrémité libre.A hoop 11 connects the two ends of the chassis 4, the hoop 11 being pivotally mounted about a longitudinal axis with respect to the chassis 4. On the middle part of the arch 11 is removably attached to a bar cross balancing 12, provided with a roller or support roller 13 at its free end.

    Entre le châssis 4 et l'arceau 11 est monté, d'une manière décrite en détail ci-après, un moteur à combustion interne 14, tel qu'un moteur à explosion à quatre temps, destiné à l'entraínement en rotation d'un outil abrasif de meulage 15, monté rotatif dans la tête de meulage 9 (voir aussi figure 7).Between the frame 4 and the hoop 11 is mounted, in a described manner in detail below, an internal combustion engine 14, such as a four-stroke explosion, intended for the rotational drive of an abrasive tool grinding 15, rotatably mounted in the grinding head 9 (see also Figure 7).

    Pour son utilisation, la meuleuse dont la structure générale vient d'être décrite est placée sur la voie, le châssis 4 étant monté et guidé sur le rail 1 par les galets 5, 6, 7 et 8, tandis que le galet ou rouleau 13 prend appui sur l'autre rail 2. La tête de meulage 9 est ainsi positionnée en regard du champignon 3 du rail 1.For its use, the grinder whose general structure comes to be described is placed on the track, the chassis 4 being mounted and guided on the rail 1 by the rollers 5, 6, 7 and 8, while the roller or roller 13 is supported on the other rail 2. The grinding head 9 is thus positioned opposite the rail 3 mushroom 1.

    Le moteur 14 est fixé sur un support 16, orienté transversalement, qui est articulé autour d'un axe longitudinal 17 sur une chape 18 elle-même fixée sur l'arceau 11, dans la partie médiane de celui-ci, à distance de l'axe d'articulation de l'arceau 11 sur le châssis 4. Ce moteur 14 possède un arbre de sortie horizontal 19, orienté longitudinalement, qui est raccordé à un carter de transmission 20 formant une sorte de bielle, articulée entre l'arbre 19 et un axe horizontal 21, parallèle à l'arbre 19 et lié au châssis ou à la tête de meulage 9.The motor 14 is fixed on a support 16, oriented transversely, which is articulated around a longitudinal axis 17 on a yoke 18 itself fixed on the roll bar 11, in the middle part thereof, at a distance from the axis hinge 11 on the chassis 4. This motor 14 has a shaft horizontal outlet 19, oriented longitudinally, which is connected to a casing transmission 20 forming a kind of connecting rod, articulated between the shaft 19 and a horizontal axis 21, parallel to the shaft 19 and linked to the chassis or the head of grinding 9.

    Un ressort à gaz 22, articulé entre l'arceau 11 et le support 16 (voir figures 2, 4 et 6), assure la compensation du poids du moteur 14 et de son support 16.A gas spring 22, articulated between the arch 11 and the support 16 (see Figures 2, 4 and 6), compensates for the weight of the motor 14 and its support 16.

    Le châssis 4 possède deux tronçons longitudinaux décalés, respectivement 4a et 4b, le « décrochement » existant entre ces deux tronçons 4a et 4b permettant le raccordement du carter de transmission 20 suivant l'axe d'articulation horizontal 21, face à l'extrémité du premier tronçon 4a du châssis 4.The chassis 4 has two offset longitudinal sections, 4a and 4b respectively, the "setback" existing between these two sections 4a and 4b allowing the connection of the transmission casing 20 along the axis horizontal articulation 21, facing the end of the first section 4a of the chassis 4.

    La figure 7 montre le détail du mécanisme de transmission, qui assure, à partir du moteur 14, l'entraínement en rotation de l'outil de meulage 15 autour de son axe 23 :Figure 7 shows the detail of the transmission mechanism, which ensures, from the motor 14, the rotational drive of the grinding tool 15 around its axis 23:

    L'extrémité de l'arbre de sortie 19 du moteur 14, située à l'intérieur du carter de transmission 20, porte une roue dentée motrice 24 sur laquelle passe une courroie crantée 25, logée dans ledit carter 20. La courroie crantée 25 passe aussi sur une roue dentée réceptrice 26, calée sur un arbre 27 monté tournant suivant l'axe horizontal 21 et entrant dans un boítier de renvoi d'angle de la tête de meulage 9. A son extrémité intérieure, l'arbre 27 porte un pignon conique 28, en prise avec une couronne dentée conique 29 montée suivant l'axe 23 de l'outil de meulage 15. La couronne dentée 29 est liée en rotation avec un manchon 30, monté tournant suivant l'axe 23 dans des paliers superposés 31 et 32. Le manchon 30 est lui-même lié en rotation, avec possibilité de coulissement axial grâce à des cannelures 33, avec un arbre 34 qui porte, à une extrémité, l'outil de meulage 15. Un dispositif de manoeuvre à volant 35, avec butée intégrée, permet de régler la position axiale de l'arbre 34, donc de l'outil de meulage 15, la profondeur de meulage étant ainsi réglable.The end of the output shaft 19 of the motor 14, located inside of the transmission housing 20, carries a drive gear 24 on which passes a toothed belt 25, housed in said housing 20. The toothed belt 25 also passes over a receiving toothed wheel 26, wedged on a shaft 27 mounted rotating along the horizontal axis 21 and entering a bevel gearbox of the grinding head 9. At its inner end, the shaft 27 carries a pinion conical 28, engaged with a conical ring gear 29 mounted according to the axis 23 of the grinding tool 15. The toothed ring 29 is linked in rotation with a sleeve 30, mounted rotating along the axis 23 in bearings superimposed 31 and 32. The sleeve 30 is itself linked in rotation, with possibility of axial sliding thanks to splines 33, with a shaft 34 which carries, at one end, the grinding tool 15. An operating device with flywheel 35, with integrated stop, makes it possible to adjust the axial position of the shaft 34, therefore of the grinding tool 15, the grinding depth being thus adjustable.

    Les deux trains de galets porteurs 5 et 6, prévus respectivement aux deux extrémités du châssis 4, sont montés fixes par rapport à ce châssis 4, et servent de prise de référence pour le meulage, en s'appuyant et en roulant sur la surface à meuler du champignon 3 du rail 1.The two carrier roller trains 5 and 6, provided respectively at the two ends of the chassis 4, are mounted fixed relative to this chassis 4, and serve as a reference point for grinding, leaning and rolling on the grinding surface of the mushroom 3 of the rail 1.

    Les deux ensembles de galets de guidage 7 et 8 sont montés, chacun, pivotants autour d'un axe longitudinal, sur l'extrémité correspondante du support 4. Comme le montrent plus en détail les figures 8 et 9, chaque ensemble 7 ou 8 comprend deux galets de guidage 36 d'axes parallèles, montés sur un support commun 37, l'écartement des deux galets de guidage 36 étant réglable pour s'adapter à la largeur du champignon 3 du rail 1. Le support 37 possède une large ouverture circulaire, dans laquelle est montée, et immobilisée en rotation, une couronne dentée intérieurement 38.The two sets of guide rollers 7 and 8 are mounted, each, pivoting about a longitudinal axis, on the corresponding end of the support 4. As shown in more detail in FIGS. 8 and 9, each set 7 or 8 comprises two guide rollers 36 with parallel axes, mounted on a common support 37, the spacing of the two guide rollers 36 being adjustable to adapt to the width of the head 3 of the rail 1. The support 37 has a wide circular opening, in which is mounted, and immobilized in rotation, an internally toothed crown 38.

    L'extrémité correspondante de l'arceau 11 est solidarisée avec un bloc de montage 39, qui est monté pivotant autour d'un axe 40 solidaire de l'extrémité du châssis 4. Le bloc de montage 39 possède un moyeu circulaire 41, autour duquel le support 37 est monté tournant par son ouverture circulaire. Dans cette position, la couronne dentée 38 solidaire du support 37 vient en prise avec un pignon fixe 42, solidaire de l'axe 40, le nombre de dents du pignon 42 étant égal, ou sensiblement égal, à la moitié du nombre de dents de la couronne 38.The corresponding end of the arch 11 is secured with a mounting block 39, which is pivotally mounted about an axis 40 integral with the end of the chassis 4. The mounting block 39 has a circular hub 41, around which the support 37 is mounted rotating by its circular opening. In this position, the ring gear 38 integral with the support 37 comes into taken with a fixed pinion 42, integral with the axis 40, the number of teeth of the pinion 42 being equal to, or substantially equal to, half the number of teeth of crown 38.

    Enfin, en se référant de nouveau aux figures 1 à 6, le bras de manoeuvre 10 est monté pivotant sur le premier tronçon 4a du châssis 4, autour d'un axe longitudinal 43, de sorte qu'il peut être réglé dans un plan transversal, et des moyens sont prévus pour immobiliser ledit bras de manoeuvre 10 dans la position angulaire sélectionnée. Ces moyens comprennent une platine transversale 44, solidaire du châssis 4 et pourvue d'une lumière en arc de cercle 45, traversée par une vis solidaire du bras 10, sur laquelle est serré un écrou de blocage 46 portant une manette 47. Finally, referring again to Figures 1 to 6, the arm of maneuver 10 is pivotally mounted on the first section 4a of the chassis 4, around a longitudinal axis 43, so that it can be adjusted in a plane transverse, and means are provided for immobilizing said arm of operation 10 in the selected angular position. These means comprise a transverse plate 44, integral with the chassis 4 and provided a light in an arc 45, crossed by a screw secured to the arm 10, on which is tightened a locking nut 46 carrying a handle 47.

    Les figures 1 et 2 illustrent l'utilisation de la meuleuse précédemment décrite, pour le meulage du dessus du champignon 3 du rail 1. Pour cette première utilisation, les positions sont les suivantes :

    • L'arceau 11 et la barre d'équilibrage 12 sont situés dans un plan horizontal.
    • Le support 4 se situe dans un plan vertical, au-dessus du rail 1 à meuler.
    • Le bras de manoeuvre 10 occupe sa position médiane de sorte qu'il est, lui aussi, orienté verticalement.
    • Les galets porteurs 5 et 6 s'appliquent tous horizontalement sur le dessus du rail 1.
    • Les deux galets de guidage 36 de chacun des deux ensembles 7 et 8 prennent place, verticalement, de part et d'autre du rail 1.
    • Le moteur 14 possède, avec son support 16, une position assez faiblement inclinée sur l'horizontale.
    Figures 1 and 2 illustrate the use of the grinder described above, for grinding the top of the head 3 of the rail 1. For this first use, the positions are as follows:
    • The arch 11 and the balancing bar 12 are located in a horizontal plane.
    • The support 4 is located in a vertical plane, above the rail 1 to be ground.
    • The operating arm 10 occupies its middle position so that it, too, is oriented vertically.
    • The support rollers 5 and 6 all apply horizontally to the top of the rail 1.
    • The two guide rollers 36 of each of the two assemblies 7 and 8 take place, vertically, on either side of the rail 1.
    • The motor 14 has, with its support 16, a relatively slightly inclined position on the horizontal.

    Dans cette position de la meuleuse, la mise en marche du moteur 14, et le déplacement en va-et-vient (flèche F) de l'ensemble de la machine à l'aide du bras de manoeuvre 10 le long de la voie, assurent le meulage du dessus du rail 1 par l'outil 15, entraíné en rotation à partir du moteur 14.In this position of the grinder, starting the engine 14, and the reciprocating movement (arrow F) of the entire machine using the operating arm 10 along the track, ensure the grinding of the above the rail 1 by the tool 15, driven in rotation from the motor 14.

    Les figures 3 et 4 illustrent l'utilisation de la même meuleuse, pour le meulage du flanc du champignon 3 du rail 1 situé du côté intérieur de la voie, c'est-à-dire le côté tourné vers l'autre rail 2. Pour cette deuxième utilisation, les positions sont les suivantes :

    • L'arceau 11 et la barre d'équilibrage 12 sont encore situés dans un plan horizontal.
    • Le support 4 se situe, lui aussi, dans un plan horizontal, et il se trouve ainsi orienté en direction de l'autre rail 2.
    • Le bras de manoeuvre 10 est orienté, par rapport au châssis 4, de manière à se trouver relevé, obliquement.
    • Les galets porteurs 5 et 6 s'appliquent tous verticalement sur le flanc intérieur du champignon 3 du rail 1.
    • Les deux galets de guidage 36 de chacun des deux ensembles 7 et 8 prennent une orientation oblique, sensiblement à 45°, en s'orientant ainsi de façon automatique par l'effet de l'engrenage constitué de la couronne dentée 38 et du pignon 42.
    • Le moteur 14 possède, avec son support 16, une position pratiquement horizontale, très légèrement inclinée en sens inverse de l'inclinaison de la position des figures 1 et 2.
    FIGS. 3 and 4 illustrate the use of the same grinder, for grinding the side of the head 3 of the rail 1 located on the inside of the track, that is to say the side facing the other rail 2. For this second use, the positions are as follows:
    • The arch 11 and the balancing bar 12 are still located in a horizontal plane.
    • The support 4 is also located in a horizontal plane, and it is thus oriented in the direction of the other rail 2.
    • The operating arm 10 is oriented relative to the chassis 4, so as to be raised, obliquely.
    • The carrier rollers 5 and 6 all apply vertically to the inner side of the mushroom 3 of the rail 1.
    • The two guide rollers 36 of each of the two assemblies 7 and 8 assume an oblique orientation, substantially at 45 °, thus being oriented automatically by the effect of the gear formed by the ring gear 38 and the pinion 42 .
    • The motor 14 has, with its support 16, a practically horizontal position, very slightly inclined in the opposite direction to the inclination of the position of FIGS. 1 and 2.

    Dans cette autre position de la meuleuse, la mise en marche du moteur 14, et le déplacement en va-et-vient (flèche F) de l'ensemble de la machine à l'aide du bras de manoeuvre 10, le long de la voie, assurent le meulage du flanc intérieur du champignon 3 du rail 1.In this other position of the grinder, starting the motor 14, and the reciprocating movement (arrow F) of the entire machine using the operating arm 10, along the track, ensure the grinding of the inner side of the mushroom 3 of the rail 1.

    Enfin, les figures 5 et 6 illustrent l'utilisation de la même meuleuse, pour le meulage du flanc du champignon 3 du rail 1 tourné vers le côté extérieur de la voie, c'est-à-dire le côté tourné à l'opposé à l'autre rail 2. Pour cette troisième utilisation, les positions sont les suivantes :

    • L'arceau 11 et la barre d'équilibrage 12 sont toujours situés dans un plan horizontal.
    • Le support 4 se situe, lui aussi, dans un plan horizontal, et il se trouve ainsi orienté vers l'opposé de l'autre rail 2.
    • Le bras de manoeuvre 10 est orienté, par rapport au châssis 4, à l'opposé de la position des figures 3 et 4, pour se trouver ici aussi relevé obliquement.
    • Les galets porteurs 5 et 6 s'appliquent tous verticalement sur le flanc extérieur du champignon 3 du rail 1.
    • Les deux galets de guidage 36 de chacun des deux ensembles 7 et 8 prennent une orientation oblique, sensiblement à 45° (mais inverse de celle des figures 3 et 4), en s'orientant ici aussi de façon automatique par l'effet de l'engrenage constitué de la couronne dentée 38 et du pignon 42.
    • Le moteur 14 possède, avec son support 16, une position assez faiblement inclinée sur l'horizontale, en sens inverse de l'inclinaison de la position des figures 1 et 2.
    Finally, Figures 5 and 6 illustrate the use of the same grinder, for grinding the side of the mushroom 3 of the rail 1 facing the outside of the track, that is to say the side turned opposite to the other rail 2. For this third use, the positions are as follows:
    • The arch 11 and the balancing bar 12 are always located in a horizontal plane.
    • The support 4 is also located in a horizontal plane, and it is thus oriented opposite the other rail 2.
    • The operating arm 10 is oriented, relative to the chassis 4, opposite the position of Figures 3 and 4, to be here also raised obliquely.
    • The carrier rollers 5 and 6 all apply vertically to the outer flank of the mushroom 3 of the rail 1.
    • The two guide rollers 36 of each of the two assemblies 7 and 8 take an oblique orientation, substantially at 45 ° (but opposite to that of FIGS. 3 and 4), here also being oriented automatically by the effect of the gear consisting of the ring gear 38 and the pinion 42.
    • The motor 14 has, with its support 16, a relatively slightly inclined position on the horizontal, in the opposite direction to the inclination of the position of FIGS. 1 and 2.

    Dans cette dernière position de la meuleuse, la mise en marche du moteur 14, et le déplacement en va-et-vient (flèche F) de l'ensemble de la machine à l'aide du bras de manoeuvre 10, le long de la voie, assurent le meulage du flanc extérieur du champignon 3 du rail 1.In this last position of the grinder, starting the motor 14, and the reciprocating movement (arrow F) of the entire machine using the operating arm 10, along the track, ensure the grinding of the outer side of the head 3 of the rail 1.

    Bien entendu, il est aussi possible d'amener la meuleuse dans des positions intermédiaires, par rapport aux trois positions typiques précédemment décrites et illustrées au dessin, ceci pour le meulage des rayons de raccordement entre le dessus du rail 1 et les flancs du champignon 3. Of course, it is also possible to bring the grinder into intermediate positions, compared to the three typical positions previously described and illustrated in the drawing, this for grinding the spokes of connection between the top of the rail 1 and the sides of the mushroom 3.

    Il ressort de ce qui précède que la meuleuse décrite permet de meuler la totalité du champignon 3 du rail, c'est-à-dire de meuler le profil de celui-ci sur un angle de 180°, sans qu'il soit nécessaire de retourner la machine, le bras de manoeuvre 10 étant dans chaque cas orienté de manière à permettre la conduite aisée de la meuleuse, et le moteur 14 restant toujours droit ou assez faiblement incliné, de sorte que son fonctionnement et sa longévité sont garantis.It appears from the above that the described grinder allows to grind the entire head 3 of the rail, i.e. grind the profile of this at an angle of 180 °, without the need to turn the machine, the operating arm 10 being in each case oriented so as to allow easy operation of the grinder, and the motor 14 always remaining straight or slightly inclined, so that its operation and longevity are guaranteed.

    Grâce à l'invention, l'opérateur n'a plus à soutenir le poids du moteur, occupe une position de travail plus ergonomique, est soumis à moins de vibrations et à moins de bruits, et est plus éloigné des projections d'étincelles.Thanks to the invention, the operator no longer has to support the weight of the motor, occupies a more ergonomic working position, is subject to less vibration and less noise, and is further away from projections sparks.

    L'on ne s'éloignerait pas du cadre de l'invention, telle que définie dans les revendications annexées, en modifiant la forme extérieure du support, ou les moyens de montage pivotant du moteur, ou encore le détail des galets porteurs et des galets de guidage ; la machine pourrait être plus complexe, c'est-à-dire être étendue de façon à entraíner deux ou plusieurs meules sur une file ou deux files de rails, par un ou plusieurs moteurs.One would not depart from the scope of the invention, as defined in the appended claims, by modifying the external shape of the support, or the pivoting mounting means of the motor, or the detail of the rollers carriers and guide rollers; the machine could be more complex, that is to say be extended so as to drive two or more grinding wheels on a line or two lines of rails, by one or more motors.

    Claims (11)

    1. A rail profile grinding machine, comprising a grinding head (9) carrying an abrasive grinding tool (15) mounted to rotate about an axis (23) and capable also of describing an up/down movement parallel to its axis of rotation (23), the grinding head (9) being carried by the central part of a chassis (4) provided, at its ends, with means (5-8) for running, guiding and fitting on a rail (1) of a railroad track or the like, the grinding machine also comprising motorized means (14) for rotating the grinding tool (15) about its axis (23) and maneuvering means (10) for moving the grinding machine back and forth (F) in the longitudinal direction of the rail (1) that is to be ground, the chassis (4) pivoting with the grinding head (9) about a longitudinal axis so as to provide a choice of grinding the top side of the rail (1), or the flank of the rail head (3) on the inside of the track or the flank of the rail head (3) on the outside of the track, characterized in that the motorized means for rotating the grinding tool (15) consist of an internal combustion engine (14) with horizontal output shaft (19), the engine (14) being fixed to a support (16) which is articulated, about a longitudinal axis (17), to a balancing assembly (11, 12, 13) itself mounted to pivot about a longitudinal spindle (40) on the chassis (4) and designed to occupy, in use, a horizontal position by resting on the other rail (2) of the track, while the horizontal output shaft (19) of the engine (14) is connected to the grinding head (9) carried by the chassis (4) by a transmission assembly comprising a transmission box (20) forming a kind of link, articulated between the output shaft (19) of the engine (14) and a horizontal axis (21) connected to the chassis (4) or to the grinding head (9), in such a way as to limit the inclination of the support (16) to small angles.
    2. The rail profile grinding machine as claimed in claim 1, characterized in that the transmission assembly comprises a driving gear wheel (24) carried by the horizontal output shaft (19) of the engine (14), a toothed belt (25) housed in the transmission box (20), a driven gear wheel (26) fixed on a horizontal shaft (27) mounted to rotate about the horizontal axis (21) of articulation of the transmission box (20) to the chassis (4) or the grinding head (9), and an angular transmission in the form of a pair of bevel gears (28, 29) connecting the latter shaft (27) to a sleeve (30) coaxial with the grinding tool (15) and connected by splines (33) to a shaft (34) carrying the grinding tool (15).
    3. The rail profile grinding machine as claimed in claim 2, characterized in that the chassis (4) has two offset longitudinal portions (4a, 4b), the horizontal shaft (27) mounted along the axis of articulation of the transmission box (20) entering the grinding head (9) at the "discontinuity" between the two portions (4a, 4b) of the chassis (4).
    4. The rail profile grinding machine as claimed in any of claims 1 to 3, characterized in that spring-loaded means (22) are provided, which act on the pivoting support (16) of the combustion engine (14) to compensate for the weight of this engine (14).
    5. The rail profile grinding machine as claimed in claim 4, characterized in that the aforementioned spring-loaded means are produced in the form of a gas spring (22) or a spring of any other kind, articulated between the balancing assembly (11, 12, 13) and the pivoting support (16) of the engine (14).
    6. The rail profile grinding machine as claimed in any of claims 1 to 5, characterized in that the inclination of the pivoting support (16) of the engine (14), and therefore of the engine (14) itself, with respect to the horizontal does not exceed about 15°, whereas the chassis (4) carrying the grinding head (9) can be inclined by ± 90° to one side or the other with respect to its vertical central position.
    7. The rail profile grinding machine as claimed in any of claims 1 to 6, characterized in that the balancing assembly comprises, on the one hand, a bow (11) connecting the ends of the chassis (4) together and pivoting via its own ends (39) about a longitudinal spindle (40), relative to this chassis (4), and, on the other hand, a transverse balancing bar (12) fixed removably to the central part of the bow (11) and provided with a roller or follower (13) designed to press and roll along the other rail (2) of the track.
    8. The rail profile grinding machine as claimed in claim 7, characterized in that the pivoting support (16) of the engine (14) is articulated (at 17) to a yoke (18) which is fixed in the central part of the bow (11) some distance from the spindle articulalting the bow (11) to the chassis (4).
    9. The rail profile grinding machine as claimed in any of claims 1 to 8, characterized in that the maneuvering means for the back and forth movement (F) of the grinding machine comprise an orientable maneuvering arm (10) mounted to pivot about a longitudinal axis (43) on the chassis (4), means (44-47) being provided for immobilizing the maneuvering arm (10) in a preselected angular position.
    10. The rail profile grinding machine as claimed in any of claism 1 to 9, characterized in that the chassis (4) of which carries, at each end, a set of two guide rollers (36) with parallel axes, mounted on a common support (37) itself mounted to rotate about a longitudinal axis relative to the corresponding end of the chassis (4), on which end is also pivotably mounted one end (39) of the balancing assembly (11, 12, 13), a connection by way of gears (38, 42) connecting the support (37) of the guide rollers (36) to the end (39) of the balancing assembly (11, 12, 13) and/or to the chassis (4) in such a way that pivoting of this assembly (11, 12, 13) relative to the chassis (4) is accompanied by proportional orientation of the guide rollers (36).
    11. The rail profile grinding machine as claimed in all of claims 7 and 10, characterized in that each end of the bow (11) is secured to a mounting block (39) mounted to pivot about a spindle (40) secured to the end of the chassis (4), the mounting block (39) having a circular hub (41) around which the support (37) of the guide rollers (36) is mounted to rotate, which support (37) has a circular opening in which an internally toothed annulus gear (38) meshing with a pinion (42) secured to the spindle (40), is mounted.
    EP01420165A 2000-08-01 2001-07-20 Rail profile grinder Expired - Lifetime EP1178154B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0010160A FR2812670B1 (en) 2000-08-01 2000-08-01 RAIL PROFILE GRINDER
    FR0010160 2000-08-01

    Publications (2)

    Publication Number Publication Date
    EP1178154A1 EP1178154A1 (en) 2002-02-06
    EP1178154B1 true EP1178154B1 (en) 2004-03-03

    Family

    ID=8853206

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP01420165A Expired - Lifetime EP1178154B1 (en) 2000-08-01 2001-07-20 Rail profile grinder

    Country Status (7)

    Country Link
    US (1) US6669533B2 (en)
    EP (1) EP1178154B1 (en)
    AT (1) ATE261024T1 (en)
    CA (1) CA2354651A1 (en)
    DE (1) DE60102187T2 (en)
    ES (1) ES2218355T3 (en)
    FR (1) FR2812670B1 (en)

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    Also Published As

    Publication number Publication date
    US6669533B2 (en) 2003-12-30
    DE60102187T2 (en) 2005-02-17
    FR2812670B1 (en) 2002-10-04
    DE60102187D1 (en) 2004-04-08
    FR2812670A1 (en) 2002-02-08
    US20020019205A1 (en) 2002-02-14
    ATE261024T1 (en) 2004-03-15
    EP1178154A1 (en) 2002-02-06
    CA2354651A1 (en) 2002-02-01
    ES2218355T3 (en) 2004-11-16

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