EP0125348A1 - Maschine zur Wiederherstellung des Profils von Schienenköpfen - Google Patents

Maschine zur Wiederherstellung des Profils von Schienenköpfen Download PDF

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Publication number
EP0125348A1
EP0125348A1 EP83200699A EP83200699A EP0125348A1 EP 0125348 A1 EP0125348 A1 EP 0125348A1 EP 83200699 A EP83200699 A EP 83200699A EP 83200699 A EP83200699 A EP 83200699A EP 0125348 A1 EP0125348 A1 EP 0125348A1
Authority
EP
European Patent Office
Prior art keywords
grinding
plane
theoretical
heads
head
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.)
Granted
Application number
EP83200699A
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English (en)
French (fr)
Other versions
EP0125348B1 (de
Inventor
Frédy Scheuchzer
Fritz Bühler
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.)
LES FILS D'AUGUSTE SCHEUCHZER SA
SCHEUCHZER FILS AUGUSTE
Original Assignee
LES FILS D'AUGUSTE SCHEUCHZER SA
SCHEUCHZER FILS AUGUSTE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LES FILS D'AUGUSTE SCHEUCHZER SA, SCHEUCHZER FILS AUGUSTE filed Critical LES FILS D'AUGUSTE SCHEUCHZER SA
Priority to DE8383200699T priority Critical patent/DE3366980D1/de
Priority to EP83200699A priority patent/EP0125348B1/de
Priority to AT83200699T priority patent/ATE22949T1/de
Priority to US06/610,383 priority patent/US4621460A/en
Priority to DD84263084A priority patent/DD219230A5/de
Priority to JP59096749A priority patent/JPS603302A/ja
Priority to CA000454403A priority patent/CA1241561A/fr
Priority to ES532531A priority patent/ES8504300A1/es
Publication of EP0125348A1 publication Critical patent/EP0125348A1/de
Application granted granted Critical
Publication of EP0125348B1 publication Critical patent/EP0125348B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • 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 machine for reprofiling the head of the rails comprising one or more grinding heads per line of rails of the means for positioning and advancing the cutting tool (s) on the mushroom, the grinding head (s) being arranged around the mushroom so as to create one or more facets determined by the theoretical tangents along one, respectively several, generating the theoretical profile of the mushroom.
  • a rail head grinding vehicle is equipped with two groups of grinding heads per rail row. Each group includes four grinding heads forming a grinding shoe suspended from the vehicle chassis. Two pads facing each other, one per row of rails, are connected by their middle part to a connecting element. Each shoe is angularly movable in a transverse plane of the track in order to allow the orientation of the grinding heads to be modified and thus to be able to correct the whole of the fungus in several passages.
  • each grinding head is provided with means allowing its individual pivoting with respect to the other grinding wheels of the grinding shoe and parallel to a transverse plane of the track, thus increasing the possibilities of approaching the profile of the mushroom.
  • Means for changing the inclination of the skids and / or heads of step-by-step grinding is planned.
  • a jack and two drawbars articulated to a console fixed under the chassis of the vehicle ensure the suspension of each grinding pad, the jack ensuring on the one hand the lifting of the pad for walking high and on the other hand the adjustment of the support pressure of the skate on the line of rails.
  • Each grinding head can be individually adjusted in height with respect to the grinding pad by means of a slide.
  • the ripples are eliminated according to the length of the shoe, that is to say the extreme distance between the grinding heads.
  • the cont working role proves difficult and the grindstones tend to copy the undulations on the burrs, because the skate is no longer guided.
  • CH -A-614 - 476 also describes a machine for grinding the running surface of the rails, comprising a device for controlling the advance of the controlled cutting tool as a function of the dimensions of the corrugation and of the wear. of the tool, but not according to the theoretical tangent to the profile of the mushroom.
  • the present invention aims to overcome these drawbacks by proposing a machine avoiding grinding of the profile of the fungus beyond the theoretical tangent to the desired profile (theoretical).
  • each grinding head comprises a member located in the plane of the facet or in a parallel plane detecting the arrival of the cutting tool in the plane of the theoretical tangent and controlling the blocking of the means of positioning and advancing the cutting tool against the fungus as soon as the plane of the theoretical tangent is reached.
  • a tilting mechanical stop can be placed facing the cutting tool - and at the end of its tilting, under the action of the advance of the tool, the advance of the grinding head is blocked, the position of the stop being such that at the end of its tilting the active face of the cutting tool has reached the plane of the theoretical tangent.
  • the stop acts directly or indirectly through a proximity sensor, on a valve hydraulic or pneumatic supply circuit of a positioning cylinder.
  • a pneumatic sensor can be used, the air jet of which is placed on the theoretical tangent and as soon as the cutting tool arrives in front of the orifice through which the air exits it disturbs the air jet, this disturbance being detected the blocking valve of the positioning cylinder is actuated.
  • the grinding heads are mainly used grouped and connected to a grinding base guided on the one hand in the vertical median plane of the rail, that is to say the longitudinal plane which passes through the axis of symmetry of the transverse profile of the rail. , and on the other hand in height by pressing on the surface of the rails, for example by means of rollers or pads.
  • the grinding heads depending on this base are inclined at different angles in a plane transverse to the rails, that is to say perpendicular to the longitudinal direction of the rails.
  • the angle of inclination of each head can be modified, either step by step between two predetermined limit values, or take one or the other of two predetermined values.
  • Each grinding head (fig. 2,3) comprises a frame 1 provided with two pairs of orifices 27a, 27b by which is fixed to a grinding base installed on a grinding vehicle, an electric motor 2 carrying the tool cut in the form of a grinding wheel 3 driven by through the spindle 4 and suspended from the frame 1 by four pendulums 5,6,7,8 forming two suspension parallelograms 5, and 7,8.
  • the pendulums 5 and 7 are articulated on one side on an axis 9 secured to the chassis 1 and on the other hand on the motor cage 2 by articulations 5a respectively 7a.
  • the pendulums 6,8 which are in fact levers of the first kind, are articulated by an intermediate point to an axis 10 secured to the chassis 1 and by one of their ends 6a respectively 8a to the motor cage 2.
  • the second end of the lever 8 applies or abuts the rod 11 of a jack 12, preferably hydraulic, secured to the chassis 1, while the second end of the lever 8 is articulated to the rod 13 of a jack 14, preferably pneumatic, suspended by an articulation 15 to a projection 1a of the chassis 1.
  • the jack 11 is the jack for positioning the grinding wheel while the jack 14 is the grinding jack, that is to say the one which regulates the bearing force of the tool on the rail.
  • a lever bent 17 from the inside of the angle so that its end 18 is disposed facing the peripheral part of the active surface of the grinding wheel 3.
  • This end 18 is provided with a lug 19 of a material having a greater abrasion resistance than that of the grinding wheel 3.
  • the second end 20 of the lever 17 has an approximately perpendicular projection to the arm of the adjacent lever which is subjected to the force of a spring 21 which causes the lever 17 to tilt so that the lug 19 is in the rest position in the plane A (dotted line) held against a stop not illustrated.
  • valve 22 can be replaced by a proximity detector detecting the approach of the end 20 of the lever and controlling by an electro-hydraulic or electro-pneumatic circuit the blocking of the supply to the cylinder of the jack 12.
  • a proximity detector 24, in particular a pneumatic detector instead of the tilting lever 17, it is possible to use a proximity detector 24, in particular a pneumatic detector.
  • the pneumatic detector 24 sends by a nozzle a jet of compressed air parallel to the active surface of the grinding wheel 3, the nozzle being placed exactly on the theoretical tangent T.
  • an electro-hydraulic or electro-pneumatic circuit acts as previously on the positioning cylinder 12.
  • FIG. 4 there is shown quite schematically a grinding base 25 comprising three grinding heads referenced 26, a grinding head 26 corresponds to a unit shown in FIGS. 1 and 2.
  • the three grinding heads 26 are secured to each other by rods 27 'while the heads situated at the ends are fixed to the base 25 by guide rods 27 fixed to the orifices 27a and 27b of their respective chassis 1 (FIG. 2 + 3).
  • Each grinding head is fixed at a different inclination from the others so in a single pass the rail head is reprofiled according to three generators G1, G2, G3 (fig.1) by creating tangential facets containing the corresponding theoretical tangents Tl, T2 respectively , T3. If the theoretical tangents are not reached in a single pass, a second or even several passages are carried out until the desired profile is obtained.
  • the chassis 28 of the base 25 rests by two legs 29.30 provided with two pads 31 on the rail rolling surface 23.
  • the grinding heads 26 can either be mounted on the frame 28 with an invariable inclination with respect to each other (fig.4) and in this case there are two possibilities 1) the angle of inclination of the heads cannot be modified, 2) it is possible to modify the angle of inclination of heads in block, or it is possible to modify the inclination of each head independently of the other heads between two limit values, as shown in FIG. 5 which will be described later.
  • FIG. 6 we have shown the means by which the angle of inclination of a grinding head or of multiple heads can be varied, as shown in FIG. 4, mounted on a grinding base. It is a front view corresponding to FIG. 5, certain parts having been omitted.
  • the base shown in Figure 5 has the difference from that of Figure 4 the fact that the heads are mounted so that one can change their angle of inclination independently of one another.
  • the shoe 31 has been replaced by a roller 35.
  • the same references followed by a zero have been used for the elements of FIG. 5 corresponding to FIG. 4 .
  • the chassis 280 rests on the running surface of the rail 23 by rollers 35 and it is guided horizontally by jacks 330 and rollers 340.
  • the chassis 280 is composed of two tubular beams 36 and 37 fitted with sheets having a triangular section seen from the front.
  • the rods 270 have been mounted on a pendulum 38 (in dotted lines) suspended from the chassis 280 of the grinding base 250 by a jack 39. Both rods 270 are guided in two circular grooves 40, 41 corresponding to the lines 40a and 41a of FIG. 7.
  • the grooves 40 and 41 are arcs of a circle centered at point 0'1 which is the center of curvature of an arc of a circle of the profile of the mushroom delimited by the two tangents T'1 and T'2 forming an angle B'1 which corresponds to the angle between the two extreme positions of the grinding head, the angle being of the order for example of 10.
  • the grooves 40 and 41 may correspond to one of the arcs A1, A2, A3 in FIG. 7 of the lines 40a and 41a or to the whole of the arc A1 + A 2 + A3.
  • the heads 2G must remain inside one of the arcs A1, A2 or A3 as mentioned above and in this case the grooves 4 0 and 41 correspond to a portion of the 'one of these arcs so that the heads remain respectively inside arcs A'1, A "1, A"' 1 or A'2, A "2, A"'3 or A'3, A "3, A”'3.
  • the heads 26 being integral with one another the fixing rods 27 of the two heads 26 situated at the ends are guided in grooves 40 and 41 and supported by a pendulum 38 and a jack 39 as shown in FIG. 6.
  • each head 260 is suspended from the frame 280 of the base 250 by a device similar to that shown in Figure 6.
  • each head 260 is suspended by rods 270 collaborating with grooves which they are provided with plates 43, 44, 45, 46 fixed to the frame 280 as shown in FIG. 6.
  • Two plates which will be called 42 and 47 are fixed behind the legs 290 respectively 300 of the base 250.
  • the grooves of each pair of plates 42, 43 or 44, 45 or 46.47 correspond respectively to one of the arcs A1, A2, A3 (fig. 7) or to all of the arcs A1 + A2 + A3.
  • the guide rods 270 are connected by pendulums 38 suspended and driven by jacks 39 not shown.
  • the modification of the inclination of a grinding head (fig. 5) or of a set of heads (fig. 4) between two limit values can be carried out either by modifying the inclination step by step, the drive being controlled for example by a motor, or by having the possibility of giving the inclination two determined values.
  • a base like that shown in FIG. 4 can be considered, the inclination of the heads of which is 70, 50 and 40 respectively and after modification of the angle by means, for example, of the device. in Figure 6 the respective inclination of the heads is 60, 40 and 30.
  • a grinding base can be composed of one or more grinding heads and in the case of a base with several heads the angle of inclination can either be modified as a block for all the heads or independently of one of the another, that is to say the heads are mounted fixed on the grinding base at a determined inclination.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Coating With Molten Metal (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP83200699A 1983-05-17 1983-05-17 Maschine zur Wiederherstellung des Profils von Schienenköpfen Expired EP0125348B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE8383200699T DE3366980D1 (en) 1983-05-17 1983-05-17 Machine for reprofiling rail heads
EP83200699A EP0125348B1 (de) 1983-05-17 1983-05-17 Maschine zur Wiederherstellung des Profils von Schienenköpfen
AT83200699T ATE22949T1 (de) 1983-05-17 1983-05-17 Maschine zur wiederherstellung des profils von schienenkoepfen.
US06/610,383 US4621460A (en) 1983-05-17 1984-05-15 Machine for reshaping rail heads
DD84263084A DD219230A5 (de) 1983-05-17 1984-05-16 Maschine zum reprofilieren eines schienenkopfes
JP59096749A JPS603302A (ja) 1983-05-17 1984-05-16 レ−ル頭部の削成装置
CA000454403A CA1241561A (fr) 1983-05-17 1984-05-16 Machine pour le reprofilage du champignon des rails
ES532531A ES8504300A1 (es) 1983-05-17 1984-05-16 Maquina para el reperfilado de la cabeza de los rieles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83200699A EP0125348B1 (de) 1983-05-17 1983-05-17 Maschine zur Wiederherstellung des Profils von Schienenköpfen

Publications (2)

Publication Number Publication Date
EP0125348A1 true EP0125348A1 (de) 1984-11-21
EP0125348B1 EP0125348B1 (de) 1986-10-15

Family

ID=8190954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83200699A Expired EP0125348B1 (de) 1983-05-17 1983-05-17 Maschine zur Wiederherstellung des Profils von Schienenköpfen

Country Status (8)

Country Link
US (1) US4621460A (de)
EP (1) EP0125348B1 (de)
JP (1) JPS603302A (de)
AT (1) ATE22949T1 (de)
CA (1) CA1241561A (de)
DD (1) DD219230A5 (de)
DE (1) DE3366980D1 (de)
ES (1) ES8504300A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315704A1 (de) * 1987-11-07 1989-05-17 Les Fils D'auguste Scheuchzer S.A. Schleifmaschine für die Reprofilierung von Schienenköpfen
US11668055B2 (en) 2018-08-27 2023-06-06 Harsco Technologies LLC Rail milling vehicle

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH654047A5 (fr) * 1983-09-16 1986-01-31 Speno International Procede et dispositif pour le reprofilage en continu des rails d'une voie ferree.
CH678341A5 (de) * 1989-03-02 1991-08-30 Speno International
CN103924491A (zh) * 2014-04-22 2014-07-16 北京二七机车工业有限责任公司 钢轨打磨车打磨头垂直升降装置
WO2022135814A2 (de) 2020-12-22 2022-06-30 Schweerbau International Gmbh & Co. Kg Vorrichtung und verfahren zum schleifen eines profils

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2118209B2 (de) * 1970-08-14 1976-04-22 Speno International S.A., Genf (Schweiz); Frank Speno Railroad Ballast Cleaning Co. Inc., Ithaca, N.Y. (V.St.A.) Vorrichtung zum schleifen der langgestreckten wellen von eisenbahnschienen
DE7407724U (de) * 1974-03-06 1978-11-09 Georg Robel Gmbh & Co, 8000 Muenchen Schienenkopf-nachformschleifmaschine
DE2843649A1 (de) * 1977-10-10 1979-04-12 Scheuchzer Fils Auguste Eisenbahnschienenschleifwagen
DE2701216B2 (de) * 1976-02-18 1979-05-10 Speno International S.A., Genf (Schweiz) Verfahren zum Nacharbeiten der Oberfläche der Schienenköpfe eines verlegten Eisenbahngleises und Vorrichtung zur Ausübung dieses Verfahrens
EP0002177A1 (de) * 1977-11-28 1979-06-13 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Schienenschleifmaschine zum Abschleifen von Unregelmässigkeiten der Schienen-Fahrfläche
EP0032214A1 (de) * 1980-01-09 1981-07-22 Speno International S.A. Eisenbahnbaumaschine zum Schleifen von Schienenköpfen
DD152595A5 (de) * 1979-08-14 1981-12-02 Plasser Bahnbaumasch Franz Gleisverfahrbare maschine zum abtragen der schienenkopfoberflaechen-unregelmaessigkeiten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2035154A (en) * 1935-01-29 1936-03-24 Faries Robert Rail grinding machine
US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder
DE2410564C3 (de) * 1974-03-06 1978-08-10 Georg Robel Gmbh & Co, 8000 Muenchen Schienenkopf-Nachformschleifmaschine
CH592780A5 (de) * 1976-01-07 1977-11-15 Speno International
US4178724A (en) * 1978-03-23 1979-12-18 Harsco Corporation Rail grinding system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2118209B2 (de) * 1970-08-14 1976-04-22 Speno International S.A., Genf (Schweiz); Frank Speno Railroad Ballast Cleaning Co. Inc., Ithaca, N.Y. (V.St.A.) Vorrichtung zum schleifen der langgestreckten wellen von eisenbahnschienen
DE7407724U (de) * 1974-03-06 1978-11-09 Georg Robel Gmbh & Co, 8000 Muenchen Schienenkopf-nachformschleifmaschine
DE2701216B2 (de) * 1976-02-18 1979-05-10 Speno International S.A., Genf (Schweiz) Verfahren zum Nacharbeiten der Oberfläche der Schienenköpfe eines verlegten Eisenbahngleises und Vorrichtung zur Ausübung dieses Verfahrens
DE2843649A1 (de) * 1977-10-10 1979-04-12 Scheuchzer Fils Auguste Eisenbahnschienenschleifwagen
EP0002177A1 (de) * 1977-11-28 1979-06-13 Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. Schienenschleifmaschine zum Abschleifen von Unregelmässigkeiten der Schienen-Fahrfläche
DD152595A5 (de) * 1979-08-14 1981-12-02 Plasser Bahnbaumasch Franz Gleisverfahrbare maschine zum abtragen der schienenkopfoberflaechen-unregelmaessigkeiten
EP0032214A1 (de) * 1980-01-09 1981-07-22 Speno International S.A. Eisenbahnbaumaschine zum Schleifen von Schienenköpfen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315704A1 (de) * 1987-11-07 1989-05-17 Les Fils D'auguste Scheuchzer S.A. Schleifmaschine für die Reprofilierung von Schienenköpfen
US4908993A (en) * 1987-11-07 1990-03-20 Les Fils D'auguste Scheuchzer S.A. Grinding machine for reprofiling railheads
US11668055B2 (en) 2018-08-27 2023-06-06 Harsco Technologies LLC Rail milling vehicle

Also Published As

Publication number Publication date
JPS603302A (ja) 1985-01-09
ATE22949T1 (de) 1986-11-15
DE3366980D1 (en) 1986-11-20
DD219230A5 (de) 1985-02-27
US4621460A (en) 1986-11-11
ES532531A0 (es) 1985-04-01
EP0125348B1 (de) 1986-10-15
CA1241561A (fr) 1988-09-06
ES8504300A1 (es) 1985-04-01

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