EP0502859A1 - Device for grinding rails. - Google Patents
Device for grinding rails.Info
- Publication number
- EP0502859A1 EP0502859A1 EP90916217A EP90916217A EP0502859A1 EP 0502859 A1 EP0502859 A1 EP 0502859A1 EP 90916217 A EP90916217 A EP 90916217A EP 90916217 A EP90916217 A EP 90916217A EP 0502859 A1 EP0502859 A1 EP 0502859A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rail
- grinding wheel
- wheel carrier
- grinding
- sides
- 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
Links
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 a device for grinding rails, in particular rail joints, with a grinding wheel which can be brought up to the rail profile and is held in a grinding wheel carrier, the grinding wheel carrier being supported on the rail on both sides of the grinding point.
- the grinding wheel carrier is arranged on a frame which can be moved on the rail, the rollers of this frame also allowing its pivoting.
- the grinding wheel axis runs approximately transverse to the longitudinal axis of the rail and the grinding wheel driven by an internal combustion engine can be moved in the direction of the rail by hand.
- the operator guides and swivels the frame when grinding according to his feeling, with measurements being pre-torn in between. It is clear that such a device requires specialists to operate, and yet the results are very often unsatisfactory.
- the present invention has set itself the goal of creating a device with which a rail can be ground faster and more uniformly than previously with less well-trained workers. This is essentially achieved in that the grinding wheel carrier is located on two sides of the grinding point
- Points are each guided in a curved path that is essentially parallel to the ideal profile of the rail and is kept at the same distance from the actual rail profile.
- the measures according to the invention have the effect that on the one hand the radii of the ideal profile and on the other hand the actual state on both sides of the grinding point are taken into account. It therefore correlates to a smooth transition even in the case of rail joints where two differently worn rails meet.
- the smoothness of the transition is particularly important, however, because bumps on the wheels of the train traveling above it, particularly at the increasingly high speeds, should be avoided.
- a particularly compact and inherently rigid device results if the cam tracks for guiding the grinding wheel carrier are arranged on the uprights of a portal frame.
- the grinding wheel carrier in the cam tracks can be moved by hand, but the grinding wheel carrier in its cam tracks arranged on both sides is expediently movable by motor.
- the grinding wheel carrier is guided in the cam tracks by means of two bracketed rollers and each end of a pulling element guided by deflection rollers engages the associated roller carriers.
- the crowning of the rollers enables the grinding wheel carrier to be pivoted with respect to the longitudinal axis of the rail in those cases in which differently worn rails are present on both sides of the grinding point.
- roller carrier which in the case of an expedient embodiment is designed as a toothed belt, enables the movement of the grinding wheel carrier in the cam tracks in a simple manner.
- two opposite deflection rollers are expediently connected to one another via a shaft.
- a possible movement of the grinding wheel carrier in all directions is achieved if the grinding wheel carrier is guided displaceably on longitudinal guides, the longitudinal guides are displaceable in transverse guides at their two ends and the transverse guides are guided in the curved tracks.
- a roller resting on the rail is provided on both sides of the longitudinal guides.
- a safe and easy-to-use support of the device is achieved according to a further feature of the invention in that a slightly conical shear, the rail laterally comprehensive seat is provided on both sides, the two relatively movable tong-like arms are assigned to the underside of the Attack the rail head.
- rollers can be placed on the rail, by means of which the device can be moved on the rail.
- an electric motor is advantageously provided for driving the grinding wheel.
- Such an engine has far fewer vibrations than an internal combustion engine, so that the work result is also influenced favorably.
- the regulating and control device of the device are expediently arranged in the horizontal spar of the portal frame. There they are protected on the one hand, but easily accessible on the other hand.
- FIG. 1 shows a view of a device placed on a rail transversely to the longitudinal axis of the rail
- FIG. 2 shows a view in the longitudinal direction of the rail on an enlarged scale compared to FIG. 1
- FIG. 3 also shows a section along the line I on an enlarged scale II— II 1 in Fig.l and Fig.4 the. Area IV in Fig.l on a greatly enlarged scale.
- a grinding wheel carrier 1 carries a cup-shaped grinding wheel 3 which is driven by an electric motor and whose axis points at an angle deviating from 90 to the longitudinal axis of the rail 5.
- the rail 5 is thus ground at point 6.
- the grinding wheel 3 is movable in the direction of its axis L.
- the grinding wheel carrier 1 is displaceable in the longitudinal guides 8 along the rail 5.
- the longitudinal guides 8 have four guide rods 9 and two side cover plates 10 connected to them. End plates 11, which are provided with bearings 12, are arranged at both ends of the cover plates 10.
- the bearings 12 include transverse guides 13 which are held by a plate 14.
- a roller 16 is mounted on an extension 15 of each end plate 11. Both rollers 16 rest on the rail 5.
- Two cambered rollers 17 are mounted on each plate 14, which roll in guides 18.
- the guides 18 run parallel to the ideal profile of the rail 5, ie the centers of the radii of curvature of the rail profile and the curved path at least essentially coincide.
- the plate 14 acting as a roller carrier is provided with pins 19, each of which engages the end of a toothed belt 20 which is guided over deflection rollers 21.
- the cam tracks 18 are provided in the uprights 24 of a portal frame, the horizontal spar 25 on the one hand, the stability of the Device ensures, on the other hand, the motor 23, the shaft 22 and the control devices 26 of the device.
- a slightly conical seat 27 is provided on both sides of the rail 5, this seat 27 is assigned two arms 28, which can be moved like forceps and which engage on the underside of the rail head (FIG. 2).
- the arms 28 are moved via a spindle drive 29.
- arms 30 are articulated on the uprights 24, which carry a rail roller 31 at one end. If the device is to be moved on the rail, the arms 30 are pivoted towards the uprights 24, so that the device is lifted off the rail and the entire device can be moved.
- the arms 30 are locked with lugs 32 of the portal frame.
- the procedure is as follows: the portal frame. 24,25 is on a rail 5 in the case of ts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT2710/89 | 1989-11-27 | ||
AT271089 | 1989-11-27 | ||
PCT/AT1990/000108 WO1991008343A1 (en) | 1989-11-27 | 1990-11-07 | Grinding device for honing rails |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0502859A1 true EP0502859A1 (en) | 1992-09-16 |
EP0502859B1 EP0502859B1 (en) | 1994-08-17 |
Family
ID=3539079
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90916217A Expired - Lifetime EP0502859B1 (en) | 1989-11-27 | 1990-11-07 | Device for grinding rails |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0502859B1 (en) |
AT (1) | ATE110132T1 (en) |
CZ (1) | CZ279003B6 (en) |
DE (1) | DE59006853D1 (en) |
WO (1) | WO1991008343A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5359815A (en) * | 1992-11-06 | 1994-11-01 | Harsco Corporation | Profile grinder |
FR2742775B1 (en) * | 1995-12-20 | 1998-02-13 | Sud Ouest Travaux | MACHINE TOOL FOR MECHANICAL INTERVENTION ON A RAILWAY RAIL |
AT406971B (en) * | 1996-06-24 | 2000-11-27 | P C Wagner Elektro Thermit Sch | Device for grinding a rail head profile |
GB0401403D0 (en) * | 2004-01-22 | 2004-02-25 | Balfour Beatty Plc | Rail joint grinding |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1231751A (en) * | 1959-04-13 | 1960-10-03 | Railroad Track Grinding Machine | |
US3566546A (en) * | 1966-11-21 | 1971-03-02 | Chemetron Corp | Apparatus for grinding welded rail |
GB1325587A (en) * | 1970-10-28 | 1973-08-01 | Permanent Way Equip | Rail grinding machine assembly |
-
1990
- 1990-11-07 AT AT90916217T patent/ATE110132T1/en not_active IP Right Cessation
- 1990-11-07 WO PCT/AT1990/000108 patent/WO1991008343A1/en active IP Right Grant
- 1990-11-07 EP EP90916217A patent/EP0502859B1/en not_active Expired - Lifetime
- 1990-11-07 DE DE59006853T patent/DE59006853D1/en not_active Expired - Fee Related
- 1990-11-22 CZ CS905804A patent/CZ279003B6/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9108343A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0502859B1 (en) | 1994-08-17 |
ATE110132T1 (en) | 1994-09-15 |
CZ279003B6 (en) | 1994-11-16 |
DE59006853D1 (en) | 1994-09-22 |
CZ580490A3 (en) | 1994-05-18 |
WO1991008343A1 (en) | 1991-06-13 |
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