EP3765670B1 - Rail grinding machine for grinding rails of a track - Google Patents

Rail grinding machine for grinding rails of a track Download PDF

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Publication number
EP3765670B1
EP3765670B1 EP18742708.3A EP18742708A EP3765670B1 EP 3765670 B1 EP3765670 B1 EP 3765670B1 EP 18742708 A EP18742708 A EP 18742708A EP 3765670 B1 EP3765670 B1 EP 3765670B1
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EP
European Patent Office
Prior art keywords
frame
cross slide
guide
grinding
machine
Prior art date
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Active
Application number
EP18742708.3A
Other languages
German (de)
French (fr)
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EP3765670C0 (en
EP3765670A1 (en
Inventor
Clemens KÜHNEL
Otto Widlroither
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.)
Robel Bahnbaumaschinen GmbH
Original Assignee
Robel Bahnbaumaschinen GmbH
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Publication date
Application filed by Robel Bahnbaumaschinen GmbH filed Critical Robel Bahnbaumaschinen GmbH
Priority to PL18742708.3T priority Critical patent/PL3765670T3/en
Publication of EP3765670A1 publication Critical patent/EP3765670A1/en
Application granted granted Critical
Publication of EP3765670C0 publication Critical patent/EP3765670C0/en
Publication of EP3765670B1 publication Critical patent/EP3765670B1/en
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Anticipated expiration legal-status Critical

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/004—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding rails, T, I, H or other similar profiles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/08—Portable grinding machines designed for fastening on workpieces or other parts of particular section, e.g. for grinding commutators
    • 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 rail grinding machine for grinding rails of a track according to the preamble of claim 1.
  • the grinding machine has a cross slide that is movably mounted on a machine frame.
  • An intermediate frame is fastened to the cross slide, on which a motor frame is mounted so that it can be adjusted in height and pivoted about a vertical axis.
  • the grinding unit is pivotably mounted on the motor frame.
  • a rail grinding machine which comprises a machine frame which can be moved on rails.
  • a cross slide is slidably mounted on the machine frame, on which a height-adjustable grinding unit is arranged.
  • From the CN 106 192 630 A discloses a rail grinding machine with a machine frame that can be moved on rails and on which a cross slide is movably mounted. Another cross slide is displaceably mounted on the cross slide by means of a spindle. A height adjustment device with a grinding unit arranged on it is fastened to the further cross slide.
  • the invention is based on the object of creating a rail grinding machine of simple and stable construction, which allows the grinding unit to be adjusted flexibly.
  • the cross slide includes a closed cross slide frame, the cross slide is extremely stable, so that the grinding unit can be flexibly adjusted and stably arranged on the cross slide in a simple manner.
  • the cross slide frame forms a closed annular body that is more stable than a U-shaped body known from the prior art.
  • the cross slide frame extends in the longitudinal direction and in the transverse direction. Thanks to the closed cross slide frame, the cross slide can easily be used to arrange the flexibly adjustable grinding unit.
  • the cross slide frame extends in the longitudinal direction, which corresponds to a displacement direction of the rail grinding machine and is also referred to below as the x-direction. Furthermore, the closed cross slide frame extends in the transverse direction, which runs perpendicularly to the longitudinal direction and is also referred to below as the y-direction. A vertical direction that runs perpendicular to the longitudinal direction and the transverse direction is also referred to below as the z-direction.
  • the x, y and z directions form a Cartesian coordinate system.
  • the guide frame ensures a simple and stable structure as well as flexible adjustability of the grinding unit.
  • the guide frame enables the grinding unit to be arranged in a simple manner in such a way that the grinding unit can be pivoted about a pivot axis and is linearly adjustable in a vertical direction.
  • the guide frame is pivotably mounted on the cross slide.
  • the guide frame is arranged in particular on the closed cross slide frame, so that the guide frame additionally stiffens the cross slide frame.
  • the grinding unit is preferably mounted on the guide frame on two sides, in particular by means of a grinding unit carrier.
  • the guide frame is pivotably mounted on the cross slide frame, so that the grinding unit can be linearly displaced in the vertical direction and pivoted about a pivot axis.
  • the guide frame can preferably be pivoted by at least 60°, in particular by at least 90°, and in particular by at least 120° about the pivot axis.
  • the guide frame is preferably mounted on the closed cross slide frame by means of two pivot bearings.
  • the guide frame has, for example, two guide columns which are pivotably mounted on the closed cross slide frame.
  • the guide frame can be pivoted about the pivot axis, in particular by means of a guide frame drive.
  • the guide frame drive can be actuated manually, for example.
  • the guide frame drive includes, for example, a spindle drive or a rack and pinion drive.
  • a rail grinding machine ensures a simple and stable construction.
  • the closed cross slide frame is formed in a simple manner by the cross beams and the longitudinal beams.
  • the cross members extend in the transverse direction and are spaced from one another in the longitudinal direction. In particular, the cross members run parallel to one another.
  • the longitudinal members connect the cross members to one another.
  • the side rails extend in the longitudinal direction and are spaced from one another in the transverse direction.
  • the longitudinal members run parallel to one another.
  • the crossbeams and the longitudinal beams are preferably connected to one another at the ends, so that the closed cross slide frame has a rectangular shape in a plan view.
  • a rail grinding machine ensures a simple and stable structure and flexible adjustability of the grinding unit.
  • the cross carriage comprises first cross carriage guide rollers which are arranged above second cross carriage guide rollers when viewed in the vertical direction.
  • the first cross carriage guide rollers bear against an upper side of the machine frame, whereas the second cross carriage guide rollers bear against an underside of the machine frame.
  • the machine frame thus runs—viewed in the vertical direction—between the first cross slide guide rollers and the second cross slide guide rollers.
  • at least two first cross slide guide rollers and at least one second cross slide guide roller are arranged on each of the cross beams of the cross slide frame, so that the cross slide is guided exactly and stably or without play on the machine frame.
  • the cross slide guide rollers are in particular designed to be self-centering, so that they center or align themselves on the machine frame due to their cross-sectional shape.
  • the rail grinding machine preferably has a cross slide spindle drive, which can be actuated manually, for example.
  • a rail grinding machine ensures a simple and stable structure and flexible adjustability of the grinding unit.
  • the guide columns and the connection beam connecting them preferably form a U-shape.
  • the guide columns are arranged, in particular at the ends, on the closed cross slide frame.
  • the guide columns are preferably articulated in a pivotable manner on the crossbeams.
  • the guide columns run parallel to one another and enable the grinding unit to be arranged in a linearly adjustable manner.
  • the connecting beam connects and stabilizes the guide columns.
  • a grinding unit spindle drive for linearly displacing the grinding unit in the vertical direction is fixed to the connecting bracket.
  • the grinding unit spindle drive can be actuated manually, for example.
  • the connecting support connects the guide columns at an end of the guide frame facing away from the cross slide, so that the grinding unit arranged on the guide frame has free access to the rail.
  • a rail grinding machine ensures a simple and stable structure.
  • the grinding unit support is slidably mounted on the guide frame and easily stabilizes the guide frame.
  • the grinding unit carrier preferably has two carrier columns which are guided on both sides on the guide frame, in particular on the associated guide columns.
  • the grinding unit carrier preferably has a fixing device so that the grinding unit can be fixed in a desired grinding position relative to the guide frame.
  • a rail grinding machine ensures a simple and stable structure. Due to the fact that the grinding unit carrier comprises a closed carrier frame, the grinding unit can be fastened easily and stably and the guide frame can also be stabilized.
  • the support frame comprises two support columns, which essentially run in the vertical direction and are slidably mounted on the guide columns. Preferably the support columns are tubular, so that they are guided in a simple and reliable manner on the guide columns.
  • the guide columns each extend through one of the support columns.
  • the support columns are connected to each other by longitudinal beams.
  • the longitudinal beams extend essentially in the longitudinal direction and are arranged at a distance from one another in the vertical direction.
  • the longitudinal beams essentially connect the support columns at the ends.
  • the grinding unit is fastened to a first longitudinal beam facing the cross slide.
  • the grinding unit is fixed relative to the grinding unit carrier, ie it cannot be displaced.
  • a grinding unit spindle drive for displacing the grinding unit carrier in the vertical direction is fastened to a second longitudinal support facing away from the cross slide.
  • the closed support frame delimits an interior space in which a drive motor of the grinding unit is arranged at least partially.
  • a rail grinding machine ensures a simple and stable structure and flexible adjustability of the grinding unit. Due to the fact that the grinding unit carrier is mounted displaceably on the guide columns, the guide frame and the grinding unit carrier are stabilized. The grinding unit can be adjusted in a simple and flexible manner for processing the respective rail by means of the cross slide, the guide frame and the grinding unit carrier.
  • a rail grinding machine 1 is used for grinding one rail 2 of a track and has a machine frame 3 which is guided on the rail 2 via guide rollers 4 .
  • the machine frame 3 is supported by a cross arm 5 on the other rail 2 of the track via guide rollers 4 .
  • a handle 6 is arranged on the machine frame 3 by means of which the grinding machine 1 can be moved manually on the rails 2 .
  • the guide rollers 4 define a displacement direction of the grinding machine 1, which is also referred to below as the longitudinal direction or x-direction.
  • the machine frame 3 has longitudinal machine frame members 7, 8 and cross machine frame members 9, 10 which are connected to each other so that the machine frame 3 has a closed shape.
  • the machine frame side members 7, 8 extend in the x-direction and are spaced from one another in a y-direction perpendicular to the x-direction.
  • the y-direction is also referred to below as the transverse direction.
  • the machine frame cross members 9, 10 run in the y-direction and are spaced apart from one another in the x-direction.
  • the machine frame cross members 9, 10 are fixed at the ends to the machine frame side members 7, 8, so that the machine frame 3 has a rectangular shape.
  • the transverse boom 5 is arranged in a telescopically displaceable manner in the machine frame crossbeams 9, 10, so that the guide rollers 4 are spaced apart from one another in the y-direction in a variable manner.
  • a cross slide 11 is mounted on the machine frame 3 .
  • the cross slide 11 can be displaced in the y direction relative to the machine frame 3 by means of a cross slide spindle drive 12 .
  • the cross slide 11 has a closed cross slide frame 13 which is formed by longitudinal beams 14, 15 and by cross beams 16, 17.
  • the longitudinal beams 14, 15 extend in the x-direction and are spaced from one another in the y-direction.
  • the longitudinal beams 14, 15 are connected to one another at the ends by means of the cross beams 16, 17, so that the cross slide frame 13 has a rectangular shape in plan view.
  • the crossbeams 16, 17 extend in the y-direction and are spaced apart from one another in the x-direction.
  • the cross members 16, 17 each comprise a first section 18 which connects the longitudinal members 14, 15 to one another, and a second section 19 which extends downwards approximately centrally from the respective first section 18 - viewed in a vertical direction.
  • the vertical direction is also referred to below as the z direction and runs perpendicular to the x and y directions.
  • the x, y and z directions thus form a Cartesian coordinate system.
  • first cross slide guide rollers 20 are rotatably mounted on the respective cross member 16 , 17 on both sides of the associated second section 19 .
  • a second cross slide guide roller 21 rotatably mounted on the respective cross member 16, 17.
  • the first cross slide guide rollers 20 are mounted at a distance from the second cross slide guide rollers 21 in the z-direction, so that the first cross slide guide rollers 20 rest on an upper side of the machine frame 3, whereas the second cross slide guide rollers 21 rest on an underside of the machine frame 3 issue.
  • the cross slide guide rollers 20, 21 have a self-centering cross-sectional shape, so that the cross slide 11 is guided on the machine frame 3 in a self-centering manner.
  • the cross slide spindle drive 12 is attached to the cross slide 11 and the machine frame 3 and can be actuated manually by means of a hand wheel 22, so that the cross slide 11 can be displaced in the y-direction.
  • a guide frame 23 is mounted on the cross slide 11 such that it can pivot about a pivot axis 24 .
  • the guide frame 23 comprises two guide columns 25, 26 and a connecting beam 27 connecting the guide columns 25, 26.
  • the guide columns 25, 26 are arranged at the ends on one of the second sections 19 of the cross beams 16, 17 in each case.
  • the guide columns 25, 26 are connected to the cross slide frame 13 by means of a respective pivot bearing 28, 29.
  • the pivot bearings 28, 29 comprise pivot pins which, starting from the second sections 19, extend through associated bores in the guide columns 25, 26 and thus form the pivot axis 24.
  • the pivot axis 24 runs parallel to the x-direction.
  • the closed cross slide frame 13 delimits--seen in plan view--an interior space in which the guide frame 23 is mounted.
  • the guide columns 25, 26 run parallel to one another and are connected at an end opposite the pivot axis 24 by means of the connecting beam 27.
  • the guide frame 23 thus has a U-shape.
  • the grinding machine 1 has a guide frame drive 30 for pivoting the guide frame 23 .
  • the guide frame drive 30 is attached to the cross slide 11 and the guide frame 23 and can be actuated manually by means of a hand wheel 31 .
  • the guide frame 23 can be pivoted relative to the cross slide 11 by at least 60°, in particular by at least 90°, and in particular by at least 120° about the pivot axis 24 .
  • the grinding machine 1 has a grinding unit 32 which is mounted on the guide frame 23 by means of a grinding unit carrier 33 .
  • the grinding unit 32 can thus be displaced in the y-direction by means of the cross slide 11 and pivoted about the pivot axis 24 by means of the guide frame 23 .
  • the grinding unit support 33 is arranged on the guide frame 23 so as to be displaceable in the z-direction.
  • the grinding unit carrier 33 comprises a closed carrier frame 34.
  • the carrier frame 34 is formed by carrier columns 35, 36 and longitudinal carriers 37, 38 connecting them.
  • the support columns 35, 36 are tubular.
  • the guide columns 25, 26 each extend through one of the support columns 35, 36, so that they are displaceably guided on the guide columns 25, 26.
  • the support columns 35, 36 are connected at the end by the longitudinal supports 37, 38, so that the support frame 34 forms the closed shape.
  • the longitudinal beams 37, 38 extend in the x-direction and are spaced apart from one another in the z-direction.
  • the grinding unit 32 is fixed, ie not displaceable, to the first longitudinal beam 37 facing the cross slide 11 .
  • the grinding machine 1 has a grinding unit spindle drive 39 on which Connecting beam 27 and is attached to the second longitudinal beam 38 which faces away from the cross slide 11.
  • the grinding unit spindle drive 39 can be actuated manually by means of a hand wheel 40 .
  • the grinding unit 32 has a drive motor 41 and a grinding tool 42 which can be driven in rotation about an axis of rotation 43 by means of the drive motor 41 .
  • the grinding tool 42 is arranged below the longitudinal beam 37
  • the drive motor 41 is arranged above the longitudinal beam 37 .
  • the drive motor 41 extends at least partially into an interior space that is delimited by the support frame 34 .
  • the grinding machine 1 Due to the closed machine frame 3, the closed cross slide frame 13 and the closed carrier frame 34, the grinding machine 1 has a simple and stable construction.
  • the grinding unit 32 can be flexibly adjusted for grinding rails 2 by means of the linearly displaceable cross slide 11 , the pivotable guide frame 23 and the linearly displaceable grinding unit carrier 33 or carrier frame 34 .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Machine Tool Units (AREA)
  • Machines For Laying And Maintaining Railways (AREA)

Description

Die Erfindung betrifft eine Schienen-Schleifmaschine zum Schleifen von Schienen eines Gleises gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a rail grinding machine for grinding rails of a track according to the preamble of claim 1.

Aus der DE 20 2017 000 696 U1 ist eine Schienen-Schleifmaschine bekannt, deren Schleifeinheit flexibel verstellbar ist. Hierzu weist die Schleifmaschine einen Querschlitten auf, der an einem Maschinenrahmen verschiebbar gelagert ist. An dem Querschlitten ist ein Zwischenrahmen befestigt, an dem höhenverstellbar und um eine vertikale Achse verschwenkbar ein Motorrahmen gelagert ist. An dem Motorrahmen ist wiederum die Schleifeinheit verschwenkbar gelagert.From the DE 20 2017 000 696 U1 a rail grinding machine is known whose grinding unit can be flexibly adjusted. For this purpose, the grinding machine has a cross slide that is movably mounted on a machine frame. An intermediate frame is fastened to the cross slide, on which a motor frame is mounted so that it can be adjusted in height and pivoted about a vertical axis. In turn, the grinding unit is pivotably mounted on the motor frame.

Aus der US 1,772,636 A ist eine Schienen-Schleifmaschine bekannt, die einen auf Schienen verfahrbaren Maschinenrahmen umfasst. Auf dem maschinenrahmen ist ein Querschlitten verschiebbar gelagert, an dem ein Schleifaggregat höhenverstellbar angeordnet ist.From the US 1,772,636A a rail grinding machine is known which comprises a machine frame which can be moved on rails. A cross slide is slidably mounted on the machine frame, on which a height-adjustable grinding unit is arranged.

Aus der CN 106 192 630 A ist eine Schienen-Schleifmaschine mit einem auf Schienen verfahrbaren Maschinenrahmen bekannt, auf dem ein Querschlitten verschiebbar gelagert ist. Auf dem Querschlitten ist ein weiterer Querschlitten mittels einer Spindel verschiebbar gelagert. An dem weiteren Querschlitten ist eine Höhenverstelleinrichtung mit einem daran angeordneten Schleifaggregat befestigt.From the CN 106 192 630 A discloses a rail grinding machine with a machine frame that can be moved on rails and on which a cross slide is movably mounted. Another cross slide is displaceably mounted on the cross slide by means of a spindle. A height adjustment device with a grinding unit arranged on it is fastened to the further cross slide.

Aus der WO 2017/017 432 A1 ist eine Schienen-Schleifmaschine mit einem auswechselbaren Schleifaggregat bekannt.From the WO 2017/017 432 A1 a rail grinding machine with an exchangeable grinding unit is known.

Der Erfindung liegt die Aufgabe zugrunde, eine einfach und stabil aufgebaute Schienen-Schleifmaschine zu schaffen, die eine flexible Verstellbarkeit der Schleifeinheit ermöglicht.The invention is based on the object of creating a rail grinding machine of simple and stable construction, which allows the grinding unit to be adjusted flexibly.

Diese Aufgabe wird durch eine Schienen-Schleifmaschine mit den Merkmalen des Anspruchs 1 gelöst. Dadurch, dass der Querschlitten einen geschlossenen Querschlittenrahmen umfasst, ist der Querschlitten äußerst stabil, sodass an dem Querschlitten in einfacher Weise die Schleifeinheit flexibel verstellbar und stabil angeordnet werden kann. Der Querschlittenrahmen bildet insbesondere einen geschlossenen Ringkörper, der im Vergleich zu einem aus dem Stand der Technik bekannten U-förmigen Körper stabiler ist. Der Querschlittenrahmen erstreckt sich in der Längsrichtung und in der Querrichtung. Durch den geschlossenen Querschlittenrahmen ist der Querschlitten zur Anordnung der flexibel verstellbaren Schleifeinheit einfach nutzbar.This object is achieved by a rail grinding machine having the features of claim 1. Due to the fact that the cross slide includes a closed cross slide frame, the cross slide is extremely stable, so that the grinding unit can be flexibly adjusted and stably arranged on the cross slide in a simple manner. In particular, the cross slide frame forms a closed annular body that is more stable than a U-shaped body known from the prior art. The cross slide frame extends in the longitudinal direction and in the transverse direction. Thanks to the closed cross slide frame, the cross slide can easily be used to arrange the flexibly adjustable grinding unit.

Der Querschlittenrahmen erstreckt sich in der Längsrichtung, die einer Verschieberichtung der Schienen-Schleifmaschine entspricht und nachfolgend auch als x-Richtung bezeichnet ist. Ferner erstreckt sich der geschlossene Querschlittenrahmen in der Querrichtung, die senkrecht zu der Längsrichtung verläuft und nachfolgend auch als y-Richtung bezeichnet ist. Eine Vertikalrichtung, die senkrecht zu der Längsrichtung und der Querrichtung verläuft, ist nachfolgend auch als z-Richtung bezeichnet. Die x-, y- und z-Richtung bilden ein kartesisches Koordinatensystem.The cross slide frame extends in the longitudinal direction, which corresponds to a displacement direction of the rail grinding machine and is also referred to below as the x-direction. Furthermore, the closed cross slide frame extends in the transverse direction, which runs perpendicularly to the longitudinal direction and is also referred to below as the y-direction. A vertical direction that runs perpendicular to the longitudinal direction and the transverse direction is also referred to below as the z-direction. The x, y and z directions form a Cartesian coordinate system.

Der Führungsrahmen gewährleistet einen einfachen und stabilen Aufbau sowie eine flexible Verstellbarkeit der Schleifeinheit. Der Führungsrahmen ermöglicht in einfacher Weise eine Anordnung der Schleifeinheit derart, dass die Schleifeneinheit um eine Schwenkachse verschwenkbar ist und in einer Vertikalrichtung linear verstellbar ist. Der Führungsrahmen ist verschwenkbar an dem Querschlitten gelagert. Der Führungsrahmen ist insbesondere an dem geschlossenen Querschlittenrahmen angeordnet, sodass der Führungsrahmen den Querschlittenrahmen zusätzlich versteift. Die Schleifeinheit ist vorzugsweise an zwei Seiten an dem Führungsrahmen gelagert, insbesondere mittels eines Schleifeinheit-Trägers. Der Führungsrahmen ist an dem Querschlittenrahmen verschwenkbar gelagert, sodass die Schleifeinheit in der Vertikalrichtung linear verlagerbar ist und um eine Schwenkachse verschwenkbar ist.The guide frame ensures a simple and stable structure as well as flexible adjustability of the grinding unit. The guide frame enables the grinding unit to be arranged in a simple manner in such a way that the grinding unit can be pivoted about a pivot axis and is linearly adjustable in a vertical direction. The guide frame is pivotably mounted on the cross slide. The guide frame is arranged in particular on the closed cross slide frame, so that the guide frame additionally stiffens the cross slide frame. The grinding unit is preferably mounted on the guide frame on two sides, in particular by means of a grinding unit carrier. The guide frame is pivotably mounted on the cross slide frame, so that the grinding unit can be linearly displaced in the vertical direction and pivoted about a pivot axis.

Durch die parallel zu der Längsrichtung verlaufende Schwenkachse ist es möglich, die Schiene seitlich schleifend zu bearbeiten. Vorzugsweise ist der Führungsrahmen um mindestens 60°, insbesondere um mindestens 90°, und insbesondere um mindestens 120° um die Schwenkachse verschwenkbar. Vorzugsweise ist der Führungsrahmen mittels zwei Schwenklagern an dem geschlossenen Querschlittenrahmen gelagert. Hierzu weist der Führungsrahmen beispielsweise zwei Führungssäulen auf, die verschwenkbar an dem geschlossenen Querschlittenrahmen gelagert sind. Der Führungsrahmen ist insbesondere mittels eines Führungsrahmen-Antriebs um die Schwenkachse verschwenkbar. Der Führungsrahmen-Antrieb ist beispielsweise manuell betätigbar. Der Führungsrahmen-Antrieb umfasst beispielsweise einen Spindelantrieb oder einen Zahnstangenantrieb.Due to the pivot axis running parallel to the longitudinal direction, it is possible to grind the rail laterally. The guide frame can preferably be pivoted by at least 60°, in particular by at least 90°, and in particular by at least 120° about the pivot axis. The guide frame is preferably mounted on the closed cross slide frame by means of two pivot bearings. For this purpose, the guide frame has, for example, two guide columns which are pivotably mounted on the closed cross slide frame. The guide frame can be pivoted about the pivot axis, in particular by means of a guide frame drive. The guide frame drive can be actuated manually, for example. The guide frame drive includes, for example, a spindle drive or a rack and pinion drive.

Eine Schienen-Schleifmaschine nach Anspruch 2 gewährleistet einen einfachen und stabilen Aufbau. Durch die Querträger und die Längsträger wird in einfacher Weise der geschlossene Querschlittenrahmen ausgebildet. Die Querträger erstrecken sich in der Querrichtung und sind in der Längsrichtung zueinander beabstandet. Die Querträger verlaufen insbesondere parallel zueinander. Die Längsträger verbinden die Querträger miteinander.A rail grinding machine according to claim 2 ensures a simple and stable construction. The closed cross slide frame is formed in a simple manner by the cross beams and the longitudinal beams. The cross members extend in the transverse direction and are spaced from one another in the longitudinal direction. In particular, the cross members run parallel to one another. The longitudinal members connect the cross members to one another.

Die Längsträger erstrecken sich in Längsrichtung und sind in der Querrichtung zueinander beabstandet. Die Längsträger verlaufen insbesondere parallel zueinander. Vorzugsweise sind die Querträger und die Längsträger endseitig miteinander verbunden, sodass der geschlossene Querschlittenrahmen in Draufsicht eine Rechteckform hat.The side rails extend in the longitudinal direction and are spaced from one another in the transverse direction. In particular, the longitudinal members run parallel to one another. The crossbeams and the longitudinal beams are preferably connected to one another at the ends, so that the closed cross slide frame has a rectangular shape in a plan view.

Eine Schienen-Schleifmaschine nach Anspruch 3 gewährleistet einen einfachen und stabilen Aufbau sowie eine flexible Verstellbarkeit der Schleifeinheit. Der Querschlitten umfasst erste Querschlitten-Führungsrollen, die - in der Vertikalrichtung betrachtet - oberhalb von zweiten Querschlitten-Führungsrollen angeordnet sind. Die ersten Querschlitten-Führungsrollen liegen gegen eine Oberseite des Maschinenrahmens an, wohingegen die zweiten Querschlitten-Führungsrollen gegen eine Unterseite des Maschinenrahmens anliegen. Der Maschinenrahmen verläuft somit - in Vertikalrichtung betrachtet - zwischen den ersten Querschlitten-Führungsrollen und den zweiten Querschlitten-Führungsrollen. An jedem der Querträger des Querschlittenrahmens sind beispielsweise mindestens zwei erste Querschlitten-Führungsrollen und mindestens eine zweite Querschlitten-Führungsrolle angeordnet, sodass der Querschlitten exakt und stabil bzw. spielfrei an dem Maschinenrahmen geführt ist. Die Querschlitten-Führungsrollen sind insbesondere selbstzentrierend ausgebildet, sodass sich diese an dem Maschinenrahmen aufgrund ihrer Querschnittsform selbst zentrieren bzw. ausrichten. Zum Verlagern des Querschlittens in der Querrichtung weist die Schienen-Schleifmaschine vorzugsweise einen Querschlitten-Spindelantrieb auf, der beispielsweise manuell betätigbar ist.A rail grinding machine according to claim 3 ensures a simple and stable structure and flexible adjustability of the grinding unit. The cross carriage comprises first cross carriage guide rollers which are arranged above second cross carriage guide rollers when viewed in the vertical direction. The first cross carriage guide rollers bear against an upper side of the machine frame, whereas the second cross carriage guide rollers bear against an underside of the machine frame. The machine frame thus runs—viewed in the vertical direction—between the first cross slide guide rollers and the second cross slide guide rollers. For example, at least two first cross slide guide rollers and at least one second cross slide guide roller are arranged on each of the cross beams of the cross slide frame, so that the cross slide is guided exactly and stably or without play on the machine frame. The cross slide guide rollers are in particular designed to be self-centering, so that they center or align themselves on the machine frame due to their cross-sectional shape. To move the cross slide in the transverse direction, the rail grinding machine preferably has a cross slide spindle drive, which can be actuated manually, for example.

Eine Schienen-Schleifmaschine nach Anspruch 4 gewährleistet einen einfachen und stabilen Aufbau sowie eine flexible Verstellbarkeit der Schleifeinheit. Die Führungssäulen und der diese verbindende Verbindungsträger bilden vorzugsweise eine U-Form aus. Die Führungssäulen sind, insbesondere endseitig, an dem geschlossenen Querschlittenrahmen angeordnet. Vorzugsweise sind die Führungssäulen verschwenkbar an den Querträgern angelenkt. Die Führungssäulen verlaufen parallel zueinander und ermöglichen eine linear verstellbare Anordnung der Schleifeinheit. Der Verbindungsträger verbindet und stabilisiert die Führungssäulen. An dem Verbindungsträger ist insbesondere ein Schleifeinheit-Spindelantrieb zum linearen Verlagern der Schleifeinheit in der Vertikalrichtung befestigt. Der Schleifeinheit-Spindelantrieb ist beispielsweise manuell betätigbar. Der Verbindungsträger verbindet die Führungssäulen an einem dem Querschlitten abgewandten Ende des Führungsrahmens, sodass die an dem Führungsrahmen angeordnete Schleifeinheit einen freien Zugang zu der Schiene hat.A rail grinding machine according to claim 4 ensures a simple and stable structure and flexible adjustability of the grinding unit. The guide columns and the connection beam connecting them preferably form a U-shape. The guide columns are arranged, in particular at the ends, on the closed cross slide frame. The guide columns are preferably articulated in a pivotable manner on the crossbeams. The guide columns run parallel to one another and enable the grinding unit to be arranged in a linearly adjustable manner. The connecting beam connects and stabilizes the guide columns. In particular, a grinding unit spindle drive for linearly displacing the grinding unit in the vertical direction is fixed to the connecting bracket. The grinding unit spindle drive can be actuated manually, for example. The connecting support connects the guide columns at an end of the guide frame facing away from the cross slide, so that the grinding unit arranged on the guide frame has free access to the rail.

Eine Schienen-Schleifmaschine nach Anspruch 5 gewährleistet einen einfachen und stabilen Aufbau. Der Schleifeinheit-Träger ist verlagerbar an dem Führungsrahmen angeordnet und stabilisiert den Führungsrahmen in einfacher Weise. Vorzugsweise weist der Schleifeinheit-Träger zwei Trägersäulen auf, die beidseitig an dem Führungsrahmen, insbesondere an den zugehörigen Führungssäulen geführt sind. Der Schleifeinheit-Träger weist vorzugsweise eine Fixiereinrichtung auf, sodass die Schleifeinheit in einer gewünschten Schleifposition relativ zu dem Führungsrahmen fixierbar ist.A rail grinding machine according to claim 5 ensures a simple and stable structure. The grinding unit support is slidably mounted on the guide frame and easily stabilizes the guide frame. The grinding unit carrier preferably has two carrier columns which are guided on both sides on the guide frame, in particular on the associated guide columns. The grinding unit carrier preferably has a fixing device so that the grinding unit can be fixed in a desired grinding position relative to the guide frame.

Eine Schienen-Schleifmaschine nach Anspruch 6 gewährleistet einen einfachen und stabilen Aufbau. Dadurch, dass der Schleifeinheit-Träger einen geschlossenen Trägerrahmen umfasst, werden eine einfache und stabile Befestigung der Schleifeinheit und zusätzlich eine Stabilisierung des Führungsrahmens ermöglicht. Der Trägerrahmen umfasst zwei Trägersäulen, die im Wesentlichen in der Vertikalrichtung verlaufen und an den Führungssäulen verschiebbar gelagert sind. Vorzugsweise sind die Trägersäulen rohrförmig ausgebildet, sodass diese in einfacher und zuverlässiger Weise an den Führungssäulen geführt sind. Die Führungssäulen erstrecken sich hierzu jeweils durch eine der Trägersäulen. Die Trägersäulen sind durch Längsträger miteinander verbunden. Die Längsträger erstrecken sich im Wesentlichen in der Längsrichtung und sind in der Vertikalrichtung beabstandet zueinander angeordnet. Die Längsträger verbinden die Trägersäulen im Wesentlichen endseitig. An einem dem Querschlitten zugewandten ersten Längsträger ist die Schleifeinheit befestigt. Die Schleifeinheit ist relativ zu dem Schleifeinheit-Träger fest angeordnet, also nicht verlagerbar. An einem dem Querschlitten abgewandten zweiten Längsträger ist insbesondere ein Schleifeinheit-Spindelantrieb zum Verlagern des Schleifeinheit-Trägers in der Vertikalrichtung befestigt. Der geschlossene Trägerrahmen begrenzt einen Innenraum, in dem zumindest teilweise ein Antriebsmotor der Schleifeinheit angeordnet ist.A rail grinding machine according to claim 6 ensures a simple and stable structure. Due to the fact that the grinding unit carrier comprises a closed carrier frame, the grinding unit can be fastened easily and stably and the guide frame can also be stabilized. The support frame comprises two support columns, which essentially run in the vertical direction and are slidably mounted on the guide columns. Preferably the support columns are tubular, so that they are guided in a simple and reliable manner on the guide columns. For this purpose, the guide columns each extend through one of the support columns. The support columns are connected to each other by longitudinal beams. The longitudinal beams extend essentially in the longitudinal direction and are arranged at a distance from one another in the vertical direction. The longitudinal beams essentially connect the support columns at the ends. The grinding unit is fastened to a first longitudinal beam facing the cross slide. The grinding unit is fixed relative to the grinding unit carrier, ie it cannot be displaced. In particular, a grinding unit spindle drive for displacing the grinding unit carrier in the vertical direction is fastened to a second longitudinal support facing away from the cross slide. The closed support frame delimits an interior space in which a drive motor of the grinding unit is arranged at least partially.

Eine Schienen-Schleifmaschine nach Anspruch 7 gewährleistet einen einfachen und stabilen Aufbau sowie eine flexible Verstellbarkeit der Schleifeinheit. Dadurch, dass der Schleifeinheit-Träger verlagerbar an den Führungssäulen gelagert ist, werden der Führungsrahmen sowie der Schleifeinheit-Träger stabilisiert. Durch den Querschlitten, den Führungsrahmen und den Schleifeinheit-Träger ist die Schleifeinheit in einfacher und flexibler Weise zur Bearbeitung der jeweiligen Schiene verstellbar.A rail grinding machine according to claim 7 ensures a simple and stable structure and flexible adjustability of the grinding unit. Due to the fact that the grinding unit carrier is mounted displaceably on the guide columns, the guide frame and the grinding unit carrier are stabilized. The grinding unit can be adjusted in a simple and flexible manner for processing the respective rail by means of the cross slide, the guide frame and the grinding unit carrier.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels. Es zeigen:

Fig. 1
eine erste perspektivische Ansicht einer Schienen-Schleifmaschine,
Fig. 2
eine zweite perspektivische Ansicht der Schienen-Schleifmaschine in Figur 1,
Fig. 3
eine Seitenansicht der Schienen-Schleifmaschine in Figur 1,
Fig. 4
eine Schnittansicht der Schienen-Schleifmaschine entlang der Schnittlinie IV-IV in Figur 3,
Fig. 5
eine Draufsicht auf einen Maschinenrahmen und einen daran geführten Querschlitten der Schienen-Schleifmaschine,
Fig. 6
eine perspektivische Ansicht des Querschlittens und einer Schleifeinheit, die mittels eines Führungsrahmens und eines Schleifeinheit-Trägers linear verlagerbar und verschwenkbar an dem Querschlitten gelagert ist, und
Fig. 7
eine perspektivische Ansicht entsprechend Figur 6 ohne die Schleifeinheit.
Further features, advantages and details of the invention result from the following description of an exemplary embodiment. Show it:
1
a first perspective view of a rail grinding machine,
2
a second perspective view of the rail grinding machine in FIG figure 1 ,
3
a side view of the rail grinding machine in figure 1 ,
4
a sectional view of the rail grinding machine along the section line IV-IV in figure 3 ,
figure 5
a top view of a machine frame and a cross slide of the rail grinding machine guided on it,
6
a perspective view of the cross slide and a grinding unit, which is mounted on the cross slide in a linearly displaceable and pivotable manner by means of a guide frame and a grinding unit carrier, and
7
a perspective view accordingly figure 6 without the grinding unit.

Eine Schienen-Schleifmaschine 1 dient zum Schleifen jeweils einer Schiene 2 eines Gleises und weist einen Maschinenrahmen 3 auf, der über Führungsrollen 4 auf der Schiene 2 geführt ist. Der Maschinenrahmen 3 ist über einen Querausleger 5 auf der weiteren Schiene 2 des Gleises über Führungsrollen 4 abgestützt. An dem Maschinenrahmen 3 ist ein Handgriff 6 angeordnet, mittels dem die Schleifmaschine 1 manuell auf den Schienen 2 verschiebbar ist. Die Führungsrollen 4 definieren eine Verschieberichtung der Schleifmaschine 1, die nachfolgend auch als Längsrichtung oder x-Richtung bezeichnet ist.A rail grinding machine 1 is used for grinding one rail 2 of a track and has a machine frame 3 which is guided on the rail 2 via guide rollers 4 . The machine frame 3 is supported by a cross arm 5 on the other rail 2 of the track via guide rollers 4 . A handle 6 is arranged on the machine frame 3 by means of which the grinding machine 1 can be moved manually on the rails 2 . The guide rollers 4 define a displacement direction of the grinding machine 1, which is also referred to below as the longitudinal direction or x-direction.

Der Maschinenrahmen 3 weist Maschinenrahmen-Längsträger 7, 8 und Maschinenrahmen-Querträger 9, 10 auf, die miteinander verbunden sind, sodass der Maschinenrahmen 3 eine geschlossene Form hat. Die Maschinenrahmen-Längsträger 7, 8 erstrecken sich in der x-Richtung und sind in einer senkrecht zu der x-Richtung verlaufenden y-Richtung beabstandet zueinander. Die y-Richtung ist nachfolgend auch als Querrichtung bezeichnet. Die Maschinenrahmen-Querträger 9, 10 verlaufen in der y-Richtung und sind in der x-Richtung zueinander beabstandet. Die Maschinenrahmen-Querträger 9, 10 sind endseitig an den Maschinenrahmen-Längsträgern 7, 8 befestigt, sodass der Maschinenrahmen 3 eine Rechteckform hat. Der Querausleger 5 ist teleskopartig verschiebbar in den Maschinenrahmen-Querträgern 9, 10 angeordnet, sodass die Führungsrollen 4 in der y-Richtung veränderbar zueinander beabstandet sind.The machine frame 3 has longitudinal machine frame members 7, 8 and cross machine frame members 9, 10 which are connected to each other so that the machine frame 3 has a closed shape. The machine frame side members 7, 8 extend in the x-direction and are spaced from one another in a y-direction perpendicular to the x-direction. The y-direction is also referred to below as the transverse direction. The machine frame cross members 9, 10 run in the y-direction and are spaced apart from one another in the x-direction. The machine frame cross members 9, 10 are fixed at the ends to the machine frame side members 7, 8, so that the machine frame 3 has a rectangular shape. The transverse boom 5 is arranged in a telescopically displaceable manner in the machine frame crossbeams 9, 10, so that the guide rollers 4 are spaced apart from one another in the y-direction in a variable manner.

An dem Maschinenrahmen 3 ist ein Querschlitten 11 gelagert. Der Querschlitten 11 ist mittels eines Querschlitten-Spindelantriebs 12 in der y-Richtung relativ zu dem Maschinenrahmen 3 verlagerbar. Der Querschlitten 11 weist einen geschlossenen Querschlittenrahmen 13 auf, der durch Längsträger 14, 15 und durch Querträger 16, 17 gebildet ist. Die Längsträger 14, 15 erstrecken sich in der x-Richtung und sind in der y-Richtung voneinander beabstandet. Die Längsträger 14, 15 sind mittels der Querträger 16, 17 endseitig miteinander verbunden, sodass der Querschlittenrahmen 13 in Draufsicht eine Rechteckform hat. Die Querträger 16, 17 erstrecken sich in der y-Richtung und sind in der x-Richtung zueinander beabstandet.A cross slide 11 is mounted on the machine frame 3 . The cross slide 11 can be displaced in the y direction relative to the machine frame 3 by means of a cross slide spindle drive 12 . The cross slide 11 has a closed cross slide frame 13 which is formed by longitudinal beams 14, 15 and by cross beams 16, 17. The longitudinal beams 14, 15 extend in the x-direction and are spaced from one another in the y-direction. The longitudinal beams 14, 15 are connected to one another at the ends by means of the cross beams 16, 17, so that the cross slide frame 13 has a rectangular shape in plan view. The crossbeams 16, 17 extend in the y-direction and are spaced apart from one another in the x-direction.

Die Querträger 16, 17 umfassen jeweils einen ersten Abschnitt 18, der die Längsträger 14, 15 miteinander verbindet, und einen zweiten Abschnitt 19, der sich ungefähr mittig von dem jeweiligen ersten Abschnitt 18 - in einer Vertikalrichtung betrachtet - nach unten erstreckt. Die Vertikalrichtung ist nachfolgend auch als z-Richtung bezeichnet und verläuft senkrecht zu der x- und der y-Richtung. Die x-, y- und z-Richtung bilden somit ein kartesisches Koordinatensystem.The cross members 16, 17 each comprise a first section 18 which connects the longitudinal members 14, 15 to one another, and a second section 19 which extends downwards approximately centrally from the respective first section 18 - viewed in a vertical direction. The vertical direction is also referred to below as the z direction and runs perpendicular to the x and y directions. The x, y and z directions thus form a Cartesian coordinate system.

An dem jeweiligen ersten Abschnitt 18 sind beidseitig des zugehörigen zweiten Abschnitts 19 erste Querschlitten-Führungsrollen 20 drehbar an dem jeweiligen Querträger 16, 17 gelagert. Darüber hinaus ist an dem jeweiligen zweiten Abschnitt 19 eine zweite Querschlitten-Führungsrolle 21 drehbar an dem jeweiligen Querträger 16, 17 gelagert. Die ersten Querschlitten-Führungsrollen 20 sind in der z-Richtung beabstandet zu den zweiten Querschlitten-Führungsrollen 21 gelagert, sodass die ersten Querschlitten-Führungsrollen 20 an einer Oberseite des Maschinenrahmens 3 anliegen, wohingegen die zweiten Querschlitten-Führungsrollen 21 an einer Unterseite des Maschinenrahmens 3 anliegen. Die Querschlitten-Führungsrollen 20, 21 haben eine selbstzentrierende Querschnittsform, sodass der Querschlitten 11 selbstzentrierend an dem Maschinenrahmen 3 geführt ist.On the respective first section 18 , first cross slide guide rollers 20 are rotatably mounted on the respective cross member 16 , 17 on both sides of the associated second section 19 . In addition, at the respective second section 19 a second cross slide guide roller 21 rotatably mounted on the respective cross member 16, 17. The first cross slide guide rollers 20 are mounted at a distance from the second cross slide guide rollers 21 in the z-direction, so that the first cross slide guide rollers 20 rest on an upper side of the machine frame 3, whereas the second cross slide guide rollers 21 rest on an underside of the machine frame 3 issue. The cross slide guide rollers 20, 21 have a self-centering cross-sectional shape, so that the cross slide 11 is guided on the machine frame 3 in a self-centering manner.

Der Querschlitten-Spindelantrieb 12 ist an dem Querschlitten 11 und dem Maschinenrahmen 3 befestigt und manuell mittels eines Handrades 22 betätigbar, sodass der Querschlitten 11 in der y-Richtung verlagerbar ist.The cross slide spindle drive 12 is attached to the cross slide 11 and the machine frame 3 and can be actuated manually by means of a hand wheel 22, so that the cross slide 11 can be displaced in the y-direction.

An dem Querschlitten 11 ist ein Führungsrahmen 23 um eine Schwenkachse 24 verschwenkbar gelagert. Der Führungsrahmen 23 umfasst zwei Führungssäulen 25, 26 und einen die Führungssäulen 25, 26 verbindenden Verbindungsträger 27. Die Führungssäulen 25, 26 sind endseitig jeweils an einem der zweiten Abschnitte 19 der Querträger 16, 17 angeordnet. Hierzu sind die Führungssäulen 25, 26 mittels eines jeweiligen Schwenklagers 28, 29 mit dem Querschlittenrahmen 13 verbunden. Die Schwenklager 28, 29 umfassen Schwenkstifte, die sich ausgehend von den zweiten Abschnitten 19 durch zugehörige Bohrungen in den Führungssäulen 25, 26 erstrecken und so die Schwenkachse 24 ausbilden. Die Schwenkachse 24 verläuft parallel zu der x-Richtung. Der geschlossenen Querschlittenrahmen 13 begrenzt - in Draufsicht betrachtet - einen Innenraum, in dem der Führungsrahmen 23 gelagert ist.A guide frame 23 is mounted on the cross slide 11 such that it can pivot about a pivot axis 24 . The guide frame 23 comprises two guide columns 25, 26 and a connecting beam 27 connecting the guide columns 25, 26. The guide columns 25, 26 are arranged at the ends on one of the second sections 19 of the cross beams 16, 17 in each case. For this purpose, the guide columns 25, 26 are connected to the cross slide frame 13 by means of a respective pivot bearing 28, 29. The pivot bearings 28, 29 comprise pivot pins which, starting from the second sections 19, extend through associated bores in the guide columns 25, 26 and thus form the pivot axis 24. The pivot axis 24 runs parallel to the x-direction. The closed cross slide frame 13 delimits--seen in plan view--an interior space in which the guide frame 23 is mounted.

Die Führungssäulen 25, 26 verlaufen parallel zueinander und sind an einem der Schwenkachse 24 gegenüberliegenden Ende mittels des Verbindungsträgers 27 verbunden. Der Führungsrahmen 23 weist somit eine U-Form auf. Zum Verschwenken des Führungsrahmens 23 weist die Schleifmaschine 1 einen Führungsrahmen-Antrieb 30 auf. Der Führungsrahmen-Antrieb 30 ist an dem Querschlitten 11 und dem Führungsrahmen 23 befestigt und manuell mittels eines Handrades 31 betätigbar. Der Führungsrahmen 23 ist relativ zu dem Querschlitten 11 um mindestens 60°, insbesondere um mindestens 90°, und insbesondere um mindestens 120° um die Schwenkachse 24 verschwenkbar.The guide columns 25, 26 run parallel to one another and are connected at an end opposite the pivot axis 24 by means of the connecting beam 27. The guide frame 23 thus has a U-shape. The grinding machine 1 has a guide frame drive 30 for pivoting the guide frame 23 . The guide frame drive 30 is attached to the cross slide 11 and the guide frame 23 and can be actuated manually by means of a hand wheel 31 . The guide frame 23 can be pivoted relative to the cross slide 11 by at least 60°, in particular by at least 90°, and in particular by at least 120° about the pivot axis 24 .

Die Schleifmaschine 1 weist eine Schleifeinheit 32 auf, die mittels eines Schleifeinheit-Trägers 33 an dem Führungsrahmen 23 gelagert ist. Die Schleifeinheit 32 ist somit mittels des Querschlittens 11 in der y-Richtung verlagerbar und mittels des Führungsrahmens 23 um die Schwenkachse 24 verschwenkbar. Der Schleifeinheit-Träger 33 ist in der z-Richtung verlagerbar an dem Führungsrahmen 23 angeordnet. Der Schleifeinheit-Träger 33 umfasst einen geschlossenen Trägerrahmen 34. Der Trägerrahmen 34 wird durch Trägersäulen 35, 36 und diese verbindende Längsträger 37, 38 gebildet. Die Trägersäulen 35, 36 sind rohrförmig ausgebildet. Die Führungssäulen 25, 26 erstrecken sich durch jeweils eine der Trägersäulen 35, 36, sodass diese verlagerbar an den Führungssäulen 25, 26 geführt sind. Die Trägersäulen 35, 36 sind endseitig durch die Längsträger 37, 38 verbunden, sodass der Trägerrahmen 34 die geschlossene Form ausbildet. Die Längsträger 37, 38 erstrecken sich in der x-Richtung und sind in der z-Richtung zueinander beabstandet. An dem dem Querschlitten 11 zugewandten ersten Längsträger 37 ist die Schleifeinheit 32 fest, also nicht verlagerbar, befestigt. Zum Verlagern des Trägerrahmens 34 weist die Schleifmaschine 1 einen Schleifeinheit-Spindelantrieb 39 auf, der an dem Verbindungsträger 27 und an dem zweiten Längsträger 38 befestigt ist, der dem Querschlitten 11 abgewandt ist. Der Schleifeinheit-Spindelantrieb 39 ist manuell mittels eines Handrades 40 betätigbar.The grinding machine 1 has a grinding unit 32 which is mounted on the guide frame 23 by means of a grinding unit carrier 33 . The grinding unit 32 can thus be displaced in the y-direction by means of the cross slide 11 and pivoted about the pivot axis 24 by means of the guide frame 23 . The grinding unit support 33 is arranged on the guide frame 23 so as to be displaceable in the z-direction. The grinding unit carrier 33 comprises a closed carrier frame 34. The carrier frame 34 is formed by carrier columns 35, 36 and longitudinal carriers 37, 38 connecting them. The support columns 35, 36 are tubular. The guide columns 25, 26 each extend through one of the support columns 35, 36, so that they are displaceably guided on the guide columns 25, 26. The support columns 35, 36 are connected at the end by the longitudinal supports 37, 38, so that the support frame 34 forms the closed shape. The longitudinal beams 37, 38 extend in the x-direction and are spaced apart from one another in the z-direction. The grinding unit 32 is fixed, ie not displaceable, to the first longitudinal beam 37 facing the cross slide 11 . To move the support frame 34, the grinding machine 1 has a grinding unit spindle drive 39 on which Connecting beam 27 and is attached to the second longitudinal beam 38 which faces away from the cross slide 11. The grinding unit spindle drive 39 can be actuated manually by means of a hand wheel 40 .

Die Schleifeinheit 32 weist einen Antriebsmotor 41 und ein Schleifwerkzeug 42 auf, das mittels des Antriebsmotors 41 um eine Drehachse 43 drehantreibbar ist. Das Schleifwerkzeug 42 ist - in der z-Richtung betrachtet - unterhalb des Längsträgers 37 angeordnet, wohingegen der Antriebsmotor 41 oberhalb des Längsträgers 37 angeordnet ist. Der Antriebsmotor 41 erstreckt sich zumindest teilweise in einen Innenraum, der durch den Trägerrahmen 34 begrenzt ist.The grinding unit 32 has a drive motor 41 and a grinding tool 42 which can be driven in rotation about an axis of rotation 43 by means of the drive motor 41 . Viewed in the z-direction, the grinding tool 42 is arranged below the longitudinal beam 37 , whereas the drive motor 41 is arranged above the longitudinal beam 37 . The drive motor 41 extends at least partially into an interior space that is delimited by the support frame 34 .

Die Schleifmaschine 1 weist aufgrund des geschlossenen Maschinenrahmens 3, des geschlossenen Querschlittenrahmens 13 und des geschlossenen Trägerrahmens 34 einen einfachen und stabilen Aufbau auf. Durch den linear verlagerbaren Querschlitten 11, den verschwenkbaren Führungsrahmen 23 und den linear verlagerbaren Schleifeinheit-Träger 33 bzw. Trägerrahmen 34 ist die Schleifeinheit 32 in flexibler Weise zum Schleifen von Schienen 2 verstellbar.Due to the closed machine frame 3, the closed cross slide frame 13 and the closed carrier frame 34, the grinding machine 1 has a simple and stable construction. The grinding unit 32 can be flexibly adjusted for grinding rails 2 by means of the linearly displaceable cross slide 11 , the pivotable guide frame 23 and the linearly displaceable grinding unit carrier 33 or carrier frame 34 .

Claims (7)

  1. Rail grinding machine for grinding rails of a track, having
    - a machine frame (3),
    - a plurality of guide rollers (4) for manual movement of the rail grinding machine (1) in a longitudinal direction (x), which are rotatably mounted on the machine frame (3),
    - a cross slide (11),
    -- which is mounted on the machine frame (3) in such a manner as to be movable in a transverse direction (y), and
    -- which comprises a closed cross slide frame (13),
    - a grinding unit (32), which is movable in the transverse direction (y) by means of the cross slide (11),
    characterized
    in that a guide frame (23) is arranged on the cross slide (11),
    in that the grinding unit (32) is mounted on the guide frame (23) in such a manner as to be movable in a vertical direction (z),
    in that the guide frame (23) is mounted on the cross slide (11) in such a manner as to be pivotable about a pivoting axis (24) extending parallel to the longitudinal direction (x), and
    in that the grinding unit (32) is arranged on the guide frame (23) for pivoting about the pivoting axis (24).
  2. Rail grinding machine as claimed in claim 1, characterized in that the cross slide frame (13) comprises crossmembers (16, 17) which extend in the transverse direction (y) and are connected to longitudinal members (14, 15) extending in the longitudinal direction (x).
  3. Rail grinding machine as claimed in claim 1 or 2, characterized in that, for movement in the transverse direction (y), the cross slide (11) comprises a plurality of cross slide guide rollers (20, 21), which are arranged spaced apart in a vertical direction (z).
  4. Rail grinding machine as claimed in any of claims 1 to 3, characterized
    in that the guide frame (23) comprises two guide columns (25, 26) and a connecting member (27) connecting said columns.
  5. Rail grinding machine as claimed in any of claims 1 to 4, characterized
    in that the grinding unit (32) is secured on a grinding unit support (33) which is mounted on the guide frame (23) in such a manner as to be movable in the vertical direction (z).
  6. Rail grinding machine as claimed in claim 5, characterized in that the grinding unit support (33) comprises a closed support frame (34).
  7. Rail grinding machine as claimed in claim 5 or 6, characterized in that the grinding unit support (33) is mounted movably on guide columns (25, 26) of the guide frame (23).
EP18742708.3A 2018-06-15 2018-06-15 Rail grinding machine for grinding rails of a track Active EP3765670B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18742708.3T PL3765670T3 (en) 2018-06-15 2018-06-15 Rail grinding machine for grinding rails of a track

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/066001 WO2019238247A1 (en) 2018-06-15 2018-06-15 Rail grinding machine for grinding rails of a track

Publications (3)

Publication Number Publication Date
EP3765670A1 EP3765670A1 (en) 2021-01-20
EP3765670C0 EP3765670C0 (en) 2023-06-07
EP3765670B1 true EP3765670B1 (en) 2023-06-07

Family

ID=62952033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18742708.3A Active EP3765670B1 (en) 2018-06-15 2018-06-15 Rail grinding machine for grinding rails of a track

Country Status (8)

Country Link
US (1) US20210237222A1 (en)
EP (1) EP3765670B1 (en)
JP (1) JP7275170B2 (en)
CN (2) CN111971434B (en)
AU (1) AU2018427985A1 (en)
EA (1) EA202092167A1 (en)
PL (1) PL3765670T3 (en)
WO (1) WO2019238247A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110983882B (en) * 2019-12-28 2020-09-04 南京溧水高新创业投资管理有限公司 Rail grinding device adaptable to rails with different distances
CN117020846B (en) * 2023-09-26 2024-03-22 山东伟鹏自动化科技有限公司 Lathe guide rail grinding equipment

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Also Published As

Publication number Publication date
CN111971434A (en) 2020-11-20
CN113463454A (en) 2021-10-01
EP3765670C0 (en) 2023-06-07
EP3765670A1 (en) 2021-01-20
CN111971434B (en) 2021-10-29
WO2019238247A1 (en) 2019-12-19
US20210237222A1 (en) 2021-08-05
PL3765670T3 (en) 2023-10-09
EA202092167A1 (en) 2021-02-26
AU2018427985A1 (en) 2020-11-19
JP7275170B2 (en) 2023-05-17
JP2021531983A (en) 2021-11-25

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