EP0843043B1 - Tangential grinding machine - Google Patents

Tangential grinding machine Download PDF

Info

Publication number: EP0843043B1
Authority: EP; European Patent Office
Prior art keywords: frame; rail; machine; grinding; axis
Prior art date: 1996-11-12
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

Application number

EP97119385A

Other languages

German (de)

English (en)

French (fr)

Other versions

EP0843043A1 (en

Inventor

Tiziano Mason

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.)

FAMA S.R.L.

Original Assignee

FAMA Srl

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.)

1996-11-12

Filing date

1997-11-06

Publication date

2003-04-02

1997-11-06 Application filed by FAMA Srl filed Critical FAMA Srl

1998-05-20 Publication of EP0843043A1 publication Critical patent/EP0843043A1/en

2003-04-02 Application granted granted Critical

2003-04-02 Publication of EP0843043B1 publication Critical patent/EP0843043B1/en

2017-11-06 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Images

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

This invention relates to a tangential grinding machine.
Tangential grinding machines comprising a grinding device consisting essentially of a grinding wheel of abrasive material which when rotated removes by abrasion a part of the material with which it comes into contact.
each grinding device consists generally of a disc of abrasive material, or grinding wheel, built to operate with its circumferential edge.
a further drawback of a tangential grinding wheel is the fact that to reprofile a rail a system with a negative contour is required, such a system being of high cost.
cup-type grinding wheels generally have to work on both rails simultaneously for mass balancing reasons. This makes it more difficult to carry out grinding work on a single rail, such as the central earth rail or the outer live lateral rail for subway trains.
FR-A-2.703.084 describes a machine for grinding rails of a railway track.
This machine is of the type comprising a main chassis and at least one grinding module comprising at least one chassis supported by two wheels bearing on the same rail and mounted on the main chassis, at least one grinding unit provided with a grinding head and with a motor for rotationally driving the grinder of this head, a device for supporting the grinding head, which device is articulated to the said module chassis so that it can pivot about the rail in a plane perpendicular to this rail and a device for controlling the angular positioning of the grinding head.
DE-A-2.612.174 describes a mobile rail grinding machine for grinding the running surface of the rails of a track comprising a grinding module mounted for power-driven vertical movements on a machine frame which runs on undercarriages on the track rails
a grinding machine is provided as described in claim 1.
the machine comprises a base frame 2 mounted on four wheels 4 which run on the rails 6 to be ground.
the grinding units 8 are movable transversely to the base frame 2 driven by hydraulic systems 14 (only one system is shown on the figures).
Each grinding unit 8 comprises a frame 9 formed from two parallel longitudinal members 16 joined together by cross-members 18, at the junctions between the longitudinal members and cross-members there being provided four uprights 20 for stiffening the frame.
the upper ends of the uprights are connected together by beams 22 provided with two guide arms 24 which engage in the uprights 26 of the grinding unit 8.
beams 22 provided with two guide arms 24 which engage in the uprights 26 of the grinding unit 8.
a further pair of arms 24 parallel to the aforesaid to enable the frame 9 to be moved vertically in a rigid manner relative to the grinding unit 8.
Said vertical movement is achieved by means of a plurality of pneumatic systems 28 fixed to the grinding unit 8 and having their rods rigid with the frame 9.
the force required at any given time for the various operations can be set by a pressure regulator (not shown on the drawings).
the frame 9 comprises a pair of bushes 30 in which there engage two pins 31 oppositely projecting from the longitudinal edges of a rocking platform 32.
the rocking platform consists of a rectangular frame 34 to which there are hinged, on a longitudinal side, two plates 36 which can be spaced apart at the other longitudinal side by a screw mechanism 35.
the plates 36 are hinged to the rectangular frame 34 on different sides.
Each plate 36 is fixed to a corresponding flange 38 provided with brackets 40 for securing an abrasive grinding wheel 42.
Each flange 38 can be adjusted by axial rotation relative to the overlying plate 36 and can be locked relative to it by bolts which engage in a plurality of corresponding holes 44.
Each grinding wheel 42 can be rotatably driven by a pulley 46 rigid with the shaft of a corresponding electric motor 48 mounted on the flange 38.
Each flange 38 is also provided with pairs of slotted holes 49 to enable it to be shifted outwards relative to the overlying plate so that the two grinding wheels 42 are not longitudinally aligned with each other, but are positioned on opposite sides of the centre line of the rail 6 to be ground.
each grinding wheel 42 has its axis of rotation non-parallel with the rolling surface of the track, and because of the facility for axially rotating the flange 38 relative to the plate 36 the two grinding wheels 42 can be inclined inwards relative to the direction of advancement along the rail.
the angle between the grinding wheel axis and the horizontal plane of the rail varies, and on varying the position of the flange 38 to the plate 36, the angle between the grinding wheel axis and the rail axis (convergence) varies.
the machine of the invention also uses a plurality of reference sensors for the rail position, which activate the various controls for effecting the grinding cycle.
the machine To operate the machine, it has firstly to be transferred to the site on which the rail to be ground is located. This transfer is preferably done by a locomotive 50, which can also be provided with an electrical generator unit 52 for remotely powering the grinding machine, especially if the railway line is not electrified or if the power supply has been temporarily switched off for maintenance reasons.
a locomotive 50 which can also be provided with an electrical generator unit 52 for remotely powering the grinding machine, especially if the railway line is not electrified or if the power supply has been temporarily switched off for maintenance reasons.
the horizontal cylinder-piston units 14 are then operated to transversely move the units 8 until the sensors sense the position of the rail 6 and halt the travel of the frame 9. At this point the frame is lowered by the pneumatic system 28 such that the grinding wheels 42 make contact with the rail head 53. During this operation the frame descends substantially rigidly as the arms 24, 24' are guided within the uprights 26.
the motors 48 are then operated to rotate the grinding wheels, which perform their abrasive action with a working pressure suitably regulated by the aforesaid pressure reducers.
a working pressure suitably regulated by the aforesaid pressure reducers.
the rail can be restored by using grinding wheels in which the profile is defined at the grinding wheel preparation stage by setting it at a particular inclination, convergence and shift with respect to the rail.
the flange 38 can also be shifted relative to the plate 36 to vary the position of the grinding wheel centre line about the rail axis.
These two units 54 have the function of supporting, in the case of deformation of the horizontal surface of the rail, the grinding wheel which is near this surface.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Architecture (AREA)
Civil Engineering (AREA)
Structural Engineering (AREA)
Machines For Laying And Maintaining Railways (AREA)
Disintegrating Or Milling (AREA)
Cyclones (AREA)
Grinding Of Cylindrical And Plane Surfaces (AREA)
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

EP97119385A 1996-11-12 1997-11-06 Tangential grinding machine Expired - Lifetime EP0843043B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ITVE960037		1996-11-12
IT96VE000037A IT1291080B1 (it)	1996-11-12	1996-11-12	Macchina molatrice tangenziale

Publications (2)

Publication Number	Publication Date
EP0843043A1 EP0843043A1 (en)	1998-05-20
EP0843043B1 true EP0843043B1 (en)	2003-04-02

Family

ID=11424222

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97119385A Expired - Lifetime EP0843043B1 (en)	1996-11-12	1997-11-06	Tangential grinding machine

Country Status (4)

Country	Link
EP (1)	EP0843043B1 (it)
AT (1)	ATE236296T1 (it)
DE (1)	DE69720371T2 (it)
IT (1)	IT1291080B1 (it)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DK0952255T3 (da) *	1998-04-20	2005-01-10	Schweerbau Gmbh & Co Kg	Skinneköretöj med en skinnefræsende anordning
AT410951B (de)	2000-07-17	2003-09-25	Linsinger Maschinenbau Gmbh	Verfahren zum reprofilieren mindestens des fahrspiegels einer schiene sowie einrichtung hierzu
AT411912B (de) *	2000-07-17	2004-07-26	Linsinger Maschinenbau Gmbh	Verfahren zum schleifen einer schiene sowie vorrichtung zur durchführung des verfahrens
EP1460176B1 (de) *	2003-03-20	2006-07-12	Stahlberg Roensch GmbH & Co. KG	Vorrichtung zum Bearbeiten der Laufflächen von Schienen durch Umfangsschleifen
EP2390415B1 (de) *	2010-05-28	2015-04-29	Vossloh High Speed Grinding GmbH	Schleifsteinanordnung mit minimierten resultierenden Moment und Kraft
EP2400056A1 (de) *	2010-06-28	2011-12-28	Vossloh High Speed Grinding GmbH	Vorrichtung zum Bearbeiten der Laufflächen von Schienen durch Umfangsschleifen mit einstellbarem Schleifprofil
JP5615079B2 (ja) *	2010-07-22	2014-10-29	保線機器整備株式会社	レール頭頂面の削正装置
ITVE20110025A1 (it) *	2011-04-26	2012-10-27	Fama S R L	Macchina molatrice tangenziale.
CZ303595B6 (cs) *	2011-05-13	2013-01-02	Morávek@Petr	Zpusob broušení železnicních kolejí a zarízení k jeho provádení
RU2465102C1 (ru) *	2011-05-19	2012-10-27	Открытое акционерное общество Научно-исследовательский и конструкторско-технологический институт подвижного состава (ОАО "ВНИКТИ")	Фрезерная головка
EP2886714B1 (de)	2013-12-17	2017-09-27	Vossloh High Speed Grinding GmbH	Prallblech mit Schutzbeschichtung für eine Schienenschleifmaschine
WO2015198206A1 (en)	2014-06-24	2015-12-30	Fama S.R.L.	Tangential grinding machine for railway profiles
DE202018104967U1 (de) *	2018-08-30	2019-12-10	Robel Bahnbaumaschinen Gmbh	Bearbeitungsmaschine zur Bearbeitung eines Gleises
CN112639208A (zh)	2018-08-30	2021-04-09	罗贝尔铁路建筑机械有限责任公司	用于加工轨道的加工机和方法
AT522861A1 (de)	2019-08-13	2021-02-15	Plasser & Theurer Export Von Bahnbaumaschinen Gmbh	Vorrichtung und Verfahren zum Bearbeiten der Oberfläche eines Schienenkopfes einer Schiene durch Stirnschleifen
IT202100007190A1 (it) *	2021-03-24	2022-09-24	Mecno Service S R L	Macchina molatrice particolarmente per il profilo longitudinale delle rotaie ferroviarie, ferrotranviarie e/o metropolitane.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3358406A (en) *	1965-10-14	1967-12-19	Speno International	Rail grinder
AT344772B (de) *	1975-12-01	1978-08-10	Plasser Bahnbaumasch Franz	Schienenschleifmaschine
FR2703084B1 (fr) *	1993-03-25	1995-06-23	Geismar Anc Ets L	Machine de meulage de rails d'une voie ferree.

1996
- 1996-11-12 IT IT96VE000037A patent/IT1291080B1/it active IP Right Grant
1997
- 1997-11-06 EP EP97119385A patent/EP0843043B1/en not_active Expired - Lifetime
- 1997-11-06 AT AT97119385T patent/ATE236296T1/de not_active IP Right Cessation
- 1997-11-06 DE DE69720371T patent/DE69720371T2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
DE69720371D1 (de)	2003-05-08
EP0843043A1 (en)	1998-05-20
ATE236296T1 (de)	2003-04-15
IT1291080B1 (it)	1998-12-14
ITVE960037A1 (it)	1998-05-12
ITVE960037A0 (it)	1996-11-12
DE69720371T2 (de)	2004-02-12

Publication	Publication Date	Title
EP0843043B1 (en)	2003-04-02	Tangential grinding machine
EP3161212B1 (en)	2018-04-04	Tangential grinding machine for railway profiles
CA1167647A (en)	1984-05-22	Grinding device for the reprofiling of a rail of a railway track
CA2141511C (en)	2005-04-26	Rail grinding machine for grinding rails of a track
EP2761089B1 (en)	2015-12-30	Tangential grinding machine
JP5462236B2 (ja)	2014-04-02	鉄道車輪を加工する方法と機械
JPH0374281B2 (it)	1991-11-26
US4993193A (en)	1991-02-19	Railroad vehicle for reprofiling at least one rail of a railroad track
US20220176460A1 (en)	2022-06-09	Portable profiler for locomotive or railcar wheels
JPH02500259A (ja)	1990-02-01	接線研削機
US5293718A (en)	1994-03-15	Tangential grinding machine particularly for railway rails
US10226824B2 (en)	2019-03-12	Portable profiler for locomotive or railcar wheels
AU725345B2 (en)	2000-10-12	A device for the continuous and fine reprofiling in situ of the surface of the head of at least one rail of a railway track
HU177360B (en)	1981-09-28	Drivable rail grinder
RU188497U1 (ru)	2019-04-16	Рельсошлифовальная установка
US2035154A (en)	1936-03-24	Rail grinding machine
CA1295834C (en)	1992-02-18	In-track rail base grinding apparatus and method
DE4437541C2 (de)	1998-08-20	Schleifmaschine
CN2193227Y (zh)	1995-03-29	移动式道岔打磨机
CA1047768A (en)	1979-02-06	Machine for truing the bearing surface of a rail of a railroad track
US4372020A (en)	1983-02-08	Slag removal apparatus
RU2080232C1 (ru)	1997-05-27	Универсальная установка для обработки колесных пар подвижного состава железных дорог
ITVE970007A1 (it)	1998-08-13	Macchina molatrice tangenziale.
CN113215878A (zh)	2021-08-06	一种钢轨打磨设备
JPH07279103A (ja)	1995-10-24	鉄道レールの局部部分の研削、とくに２つの隣接するレールまたは他の破壊欠陥の溶接用機械

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