EP0780516B1 - Machine-outil pour intervention mécanique sur un rail de chemin de fer - Google Patents
Machine-outil pour intervention mécanique sur un rail de chemin de fer Download PDFInfo
- Publication number
- EP0780516B1 EP0780516B1 EP96402742A EP96402742A EP0780516B1 EP 0780516 B1 EP0780516 B1 EP 0780516B1 EP 96402742 A EP96402742 A EP 96402742A EP 96402742 A EP96402742 A EP 96402742A EP 0780516 B1 EP0780516 B1 EP 0780516B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- rollers
- machine
- tool
- guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
- E01B31/02—Working rail or other metal track components on the spot
- E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
- E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
Definitions
- the invention relates to machines used for perform various interventions on the rails of a track railroad.
- French patent n ° 93.01278 (FR-A-2 701 277) describes a grinder automatic whose particularity is to work on edge with a rounded leading edge so as to have a punctual contact with the grinding wheel.
- This machine is essentially composed of a frame in which the grinding wheel can move longitudinally while describing a roughly semi-circular transverse movement the outline of the rail head.
- Elastic means compensate for differences in travel between the guide means and the copy rollers.
- the invention aims to remedy this disadvantage without changing the general design of the machine described in French patent n ° 93.01278.
- the wheel then tends to change its tilt and "draw" the rail without the springs disposed between the guide means and the copy rollers can absorb the parasitic forces at which the grinding wheel is subject.
- the invention plans to guide the transverse trajectory of the grinding wheel by means which ensure that at all points of this trajectory, the grinding wheel attacks the rail perpendicular to the tangent of its point of contact with the rail.
- the guide means are constituted by three rollers arranged in a triangle cooperating with three guide grooves, two of which copy variations in radius of curvature of the rail head and are offset angularly with respect to each other and with respect to the vertical center line of the machine.
- the machine shown in Figures 1 to 9 is a automatic machine which is intended for grinding welds and / or rail reloading areas railway.
- the rail is designated by the general reference R and its fungus by the reference C.
- the machine consists of two plates terminals 1, which are vertical and assembled one to the other by four rods 2, in Figures 1 and 2, or by two longitudinal member covers 2 in FIGS. 3, 5 and 7.
- Each plate 1 has on its internal face a groove 3, called drive groove, in which is fixed a double chain 4 whose part which makes protrusion out of groove 3 cooperates with the pinion 14 which will be described later.
- the profile of the groove 3 is curvilinear but is not not a portion of a circle in the geometric sense of the term: its layout is made so as to be substantially consistent to that of the section of the mushroom C of the rail R, but without have a sudden change in radius of curvature.
- each end plate 1 has a cutout allowing you to rest while marrying it tightly over the head of the rail C ( Figure 3).
- These plates can also carry wedging devices adjustable, not shown, which allow adjustment symmetrically the position of the body formed by the plates 1 and the side members (or rods) 2 in the axis and according to tilt the rail and lock the machine in this position.
- each plate 1 On its internal face, below the groove drive 3 and above the aforementioned cutout, each plate 1 has three guide grooves 18a, 18b, 18c, superimposed ( Figure 9).
- the upper guide groove has a profile parallel to the drive groove that is to say curvilinear, but not circular, without abrupt variation of radius of curvature and symmetrical about the plane vertical center of the machine (mark A in Figure 3).
- the lower grooves 18 b and 18 c have a profile curvilinear generally following the groove 18 a, but this profile shows abrupt variations in radius of curvature which copy those of the mushroom C of the rail R.
- these grooves are angularly offset from axis A, towards the left for groove 18 b and right for groove 18C.
- the angular offset of these grooves is of a value which corresponds to the angular offset of the rollers 19b and 19c which will be described below.
- the diagram in Figure 9 shows the positions the grinding wheel along the rail head and rollers 19a, 19b and 19c in the grooves 18a, 18b and 18c, the middle position along the axis A being shown in solid lines and the other positions being shown in broken lines.
- the triangle arrangement of the rollers 19a, 19b and 19c is symbolized in T for the position median of the wheel but has not been reported for other positions for reasons of clarity.
- a mobile assembly consisting of two parts 5 which are connected to each other by two bars 6 and 7 which are placed one above the other in the plane vertical center A when the pieces 5 are in position median as shown in Figures 1 to 9.
- Each of the parts 5 has in its part lower leg 10 provided at its lower end a roller 11 which rests on the mushroom C of the rail R.
- Each part 5 has three guide rollers 19a, 19b and 19c arranged in a triangle on its opposite face grooves 18a, 18b and 18c of the previous plate 1 corresponding.
- roller 19a The top of this triangle (roller 19a) is located on the vertical axis of the grinding wheel when it coincides with the median vertical axis (A) of the machine ( Figures 3, 5, 7 and 9). With respect to this axis the two lower rollers 19b, 19c, are each arranged at the groove with which it cooperates 18b, 18c, with an angular offset of 10 to 15 degrees.
- the two bars 6 and 7 bear one of their ends a motor 12 ( Figures 5 and 6) which drives the threaded rod 8 rotating on itself.
- plates 5 carry a shaft 9 which is rotated on itself by a motor 13 (FIG. 7) arranged on the other side of the assembly movable relative to the motor 12, this motor 13 being carried by the corresponding plate 5.
- the shaft 9 carries a pinion 14 which meshes with the chain 4.
- This chassis 15 carries a grinding tool designated by the general reference 16.
- This grinding tool has a drive motor 16a, an L-shaped drive spindle 16b and a disc-shaped grinding wheel 16c.
- the grinding tool 16 is carried by the chassis 15 in such a way that it is located on the side of the plane defined by the four bars, rods or shafts 6, 7, 8 and 9 and the part bent at 90 °, 16b, from the spindle to a length such as the grinding wheel proper 16c lies in the plane defined by the bars 6 to 9, as shown in Figure 3.
- the chassis 15 consists of two parts sliding doors connected to each other by a screw micrometric 17 which allows to adjust with great precision the height position of the grinding wheel 16c.
- the machine is placed astride the area to be ground (welding or reloading) so that the rollers 11 are equidistant from either side of this area.
- the grinding tool 16 is brought to one end of the mobile assembly.
- the tool By actuating the motor 13, the tool is brought grinding in one of the two extreme positions shown dashed in Figure 3, for example the position located on the right in which the wheel 16c is at level of the outer upper rim of the mushroom C of the rail R.
- the three motors 16a, 12 and 13 are then put into operation action.
- the threaded rod is put rotating on itself and it drives the chassis 15 (and therefore the grinding tool it carries) in translation from one end of bars 6 and 7 to the other.
- the chassis 15 actuates a limit switch which stops all the motors.
- the respective speeds of motors 12 and 13 are determined so that the wheel 16c goes back and forth complete while chassis 15 moves approximately 1 millimeter along bars 6 and 7.
- the springs 20 shown in Figures 3 to 8 are adaptation springs intended to allow a use of the machine on type rail profiles Most commonly used vineyards, namely profiles UIC 50, UIC 54 and UIC 60 without having to make plates 1 and special parts 5 for each of these profiles.
- the shape of the tool itself is not more imposed, as in the machine described in the patent n ° 93.01278, it can be any. This allows by example of using cup wheels instead of wheels circular.
- the present invention is not limited in its application only to grinders. It can be adapted to any automatic machine intended to carry out a mechanical intervention on a railroad including welding, cutting etc ...
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Numerical Control (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Gripping On Spindles (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Description
- La figure 1, est une vue schématique en élévation latérale d'un exemple de réalisation d'une machine à meuler, selon l'invention;
- La figure 2, est une vue de dessus de la machine de la figure 1;
- La figure 3, est une vue en coupe selon B-B de la figure 1;
- La figure 4, est une vue selon F de la figure 3;
- La figure 5, est une vue en coupe selon A-A de la figure 1;
- La figure 6 est une vue en coupe selon D-D de la figure 5;
- La figure 7, est une vue en coupe selon C-C de la figure 1;
- La figure 8, est une vue en coupe selon E-E de la figure 7;
- La figure 9 est un schéma de principe illustrant les diverses positions de la meule sur le développé de son parcours transversal sur le champignon du rail.
Claims (3)
- Machine-outil pour intervention mécanique sur un rail de chemin de fer du type comportant un bâti posé sur le rail de part et d'autre de la zone à traiter, muni d'un équipage mobile comportant des galets de copie du champignon du rail, asservissant le déplacement transversal de l'outil par l'intermédiaire de moyens de guidage suivant une trajectoire globalement semi-circulaire, lesdits moyens de guidage étant constitués par des galets (19a, 19b, 19c) portés par une pièce solidaire des galets de copie et des rainures (18a, 18b, 18c) du bâti, caractérisée en ce que lesdits moyens de guidage (18a, 18b, 18c ; 19a, 19b, 19c) sont agencés pour qu'en tous points de sa trajectoire, l'outil (16c) attaque le rail perpendiculairement à la tangente de son point de contact avec le rail (R), lesdits galets de guidage (19a, 19b, 19c) étant au nombre de trois, disposés en triangle, et coopérant avec trois rainures (18a, 18b, 18c) dont deux (18b, 18c) recopient les variations du rayon de courbure du champignon du rail en étant décalées angulairement l'une par rapport à l'autre et par rapport à l'axe vertical médian de la machine.
- Machine-outil selon la revendication 1, caractérisée en ce que le sommet du triangle (galet 19a) est disposé sur un axe vertical coïncidant avec l'axe vertical médian (A) de la machine lorsque le point de contact de l'outil avec le rail coïncide avec ledit axe médian, et les deux autre galets (19b, 19c) sont sensiblement équidistants par rapport à cet axe vertical et en ce que le galet supérieur (18b) coopère avec une rainure de guidage (18a) ayant un profil curviligne sans variation brusque de rayon de courbure, les galets inférieurs (19b, 19c) coopérant avec lesdites rainures de guidage (18b, 18c) dont les variations de rayon de courbure copient celles du champignon (C) du rail.
- Machine-outil selon la revendication 2 caractérisée en ce qu'elle comporte entre les galets copieurs (11) et les galets de guidage (19a, 19b, 19c) des moyens élastiques (20) permettant l'adaptation de la machine à une pluralité de profils de rails différents.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9515127A FR2742775B1 (fr) | 1995-12-20 | 1995-12-20 | Machine-outil pour intervention mecanique sur un rail de chemin de fer |
FR9515127 | 1995-12-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0780516A1 EP0780516A1 (fr) | 1997-06-25 |
EP0780516B1 true EP0780516B1 (fr) | 2001-02-28 |
Family
ID=9485710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96402742A Expired - Lifetime EP0780516B1 (fr) | 1995-12-20 | 1996-12-16 | Machine-outil pour intervention mécanique sur un rail de chemin de fer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0780516B1 (fr) |
AT (1) | ATE199418T1 (fr) |
DE (1) | DE69611895T2 (fr) |
FR (1) | FR2742775B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104929002B (zh) * | 2015-07-13 | 2017-08-25 | 刘剑 | 一种便携式曲线控制高精度钢轨仿形打磨机 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991008343A1 (fr) * | 1989-11-27 | 1991-06-13 | Friedrich Pokorny | Dispositif pour la rectification de rails |
FR2661698A1 (fr) * | 1990-05-03 | 1991-11-08 | Repcorail Sarl | Meuleuse reprofileuse portative par copie du rail. |
FR2701277B1 (fr) * | 1993-02-05 | 1995-04-21 | Mach Voie Ferree | Machine automatique portative pour le meulage des soudures et des zones de rechargement de rails de chemin de fer. |
-
1995
- 1995-12-20 FR FR9515127A patent/FR2742775B1/fr not_active Expired - Fee Related
-
1996
- 1996-12-16 DE DE69611895T patent/DE69611895T2/de not_active Expired - Lifetime
- 1996-12-16 AT AT96402742T patent/ATE199418T1/de active
- 1996-12-16 EP EP96402742A patent/EP0780516B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69611895D1 (de) | 2001-04-05 |
FR2742775B1 (fr) | 1998-02-13 |
EP0780516A1 (fr) | 1997-06-25 |
ATE199418T1 (de) | 2001-03-15 |
DE69611895T2 (de) | 2001-09-06 |
FR2742775A1 (fr) | 1997-06-27 |
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