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

• Rail grinding machine for grinding rails of a track
• the invention relates to a rail grinding machine for grinding rails of a track according to the preamble of claim 1.
• a rail grinding machine is known from DE 20 2017 000 696 U1, the grinding unit of which is flexibly adjustable.
• the grinding machine on a cross slide that is slidably mounted on a machine frame.
• An intermediate frame is attached to the cross slide, on which a motor frame is mounted in a height-adjustable manner and pivotable about a vertical axis.
• the grinding unit is pivotally mounted on the motor frame.
• the invention has for its object to provide a simple and sturdy rail grinding machine that allows flexible adjustment of the grinding unit.
• the cross slide comprises a closed cross slide frame makes the cross slide 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 in particular forms a closed ring body, which 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. Due to the closed cross slide frame, the cross slide is easy to use to arrange the flexibly adjustable grinding unit.
• the cross slide frame extends in the longitudinal direction, which corresponds to a direction of displacement of the rail grinding machine and is also referred to below as the x direction.
• the closed cross slide frame extends in the transverse direction, which runs perpendicular to the longitudinal direction and is also referred to below as the y direction.
• a vertical direction that is 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.
• a rail grinding machine ensures a simple and stable structure.
• the closed cross slide frame is formed in a simple manner by the cross members and the longitudinal members.
• the cross members extend in the transverse direction and are spaced apart from one another in the longitudinal direction.
• the cross members run in particular parallel to each other.
• the side members connect the cross members with each other.
• the longitudinal beams extend in the longitudinal direction and are spaced apart from one another in the transverse direction.
• the side members run in particular parallel to one another.
• the cross members and the longitudinal members are preferably connected to one another at the ends, so that the closed cross slide frame has a rectangular shape in plan view.
• a rail grinding machine ensures a simple and stable structure and flexible adjustability of the grinding unit.
• the cross slide comprises first cross slide guide rollers which, viewed in the vertical direction, are arranged above second cross slide guide rollers.
• the first cross slide guide rollers bear against an upper side of the machine frame, whereas the second cross slide guide rollers bear against an underside of the machine frame.
• the machine frame thus runs - in vertical - viewed in the 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 members of the cross slide frame, for example, so that the cross slide is guided on the machine frame precisely and stably or without play.
• the cross slide guide rollers are in particular 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 frame allows the grinding unit to be arranged in a simple manner such that the grinding unit is linearly adjustable in a vertical direction and / or pivotable about a pivot axis.
• the guide frame is preferably 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.
• a rail grinding machine ensures flexible adjustability of the grinding unit. Due to the swivel axis running parallel to the longitudinal direction, it is possible to machine the rail by grinding it sideways.
• 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 attached to the closed cross member by means of two pivot bearings. sledge frame stored.
• the guide frame has, for example, two guide columns which are pivotably mounted on the closed cross slide frame.
• the guide frame can in particular be pivoted about the pivot axis by means of a guide frame drive.
• the guide frame drive can be operated manually, for example.
• the guide frame drive comprises, for example, a spindle drive or a rack and pinion drive.
• a rail grinding machine ensures a simple and stable structure and a flexible adjustability of the grinding unit.
• the guide columns and the connecting carrier connecting them preferably form a U-shape.
• the guide columns are arranged on the closed cross slide frame, in particular at the end.
• the guide pillars are preferably pivotably articulated on the cross members.
• the guide columns run parallel to each other and enable a linearly adjustable arrangement of the grinding unit.
• the connector supports and stabilizes the pillars.
• a grinding unit spindle drive for linear displacement of the grinding unit in the vertical direction is attached to the connection carrier.
• the grinding unit spindle drive can be operated manually, for example.
• the connection carrier 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 flexible adjustability of the grinding unit.
• the grinding unit is preferably mounted on two sides on the guide frame, in particular by means of a grinding unit carrier.
• the guide frame is preferably pivotably mounted on the cross slide frame, so that the grinding unit in the vertical direction is linearly displaceable and is pivotable about a pivot axis.
• a rail grinding machine ensures a simple and stable structure.
• the grinding unit carrier is displaceably arranged on the guide frame and stabilizes the guide frame in a simple manner.
• 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.
• the fact that the grinding unit carrier comprises a closed carrier frame enables simple and stable fastening of the grinding unit and, in addition, stabilization of the guide frame.
• the support frame comprises two support columns, which run essentially in the vertical direction and are slidably mounted on the guide columns.
• the support columns are preferably tubular, so that they are guided on the guide columns in a simple and reliable manner.
• the guide columns each extend through one of the support columns.
• the carrier columns are connected to each other by catch carriers.
• the catch carriers essentially extend in the catch direction and are spaced apart from one another in the vertical direction.
• the catcher straps essentially connect the support pillars at the end.
• the grinding unit is attached to a first catch carrier facing the cross slide.
• the grinding unit is fixed relative to the grinding unit carrier, ie it cannot be moved.
• a grinding unit spindle drive for moving the grinding unit carrier in the vertical direction is attached.
• the closed support frame delimits an interior in which a drive motor of the grinding unit is at least partially arranged.
• a rail grinding machine ensures a simple and stable structure and flexible adjustability of the grinding unit.
• the fact that the grinding unit carrier is displaceably mounted on the guide pillars stabilizes the guide frame and the grinding unit carrier. Thanks to the cross slide, the guide frame and the grinding unit carrier, the grinding unit can be easily and flexibly adjusted for machining the respective rail.
• FIG. 1 is a first perspective view of a rail grinding machine
• FIG. 2 shows a second perspective view of the rail grinding machine in FIG. 1,
• FIG. 3 shows a side view of the rail grinding machine in FIG. 1,
• Fig. 4 is a sectional view of the rail grinding machine along the
• Section line IV-IV in Figure 3, 5 is a plan view of a machine frame and a cross slide of the rail grinding machine guided thereon,
• Fig. 6 is a perspective view of the cross slide and one
• Grinding unit carrier is linearly displaceable and pivotally mounted on the cross slide, and
• Fig. 7 is a perspective view corresponding to Figure 6 without the
• a rail grinding machine 1 is used to grind one rail 2 of a track and has a machine frame 3 which is guided on the rail 2 by means of guide rollers 4.
• the machine frame 3 is on a cross arm 5 on the other rail 2 of the track
• 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 direction of displacement of the grinding machine 1, which is also referred to below as the longitudinal direction or x-direction.
• the machine frame 3 has machine frame side members 7, 8 and machine frame cross members 9, 10, which are connected to one another, 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 apart from one another in a y direction running 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 in the x direction.
• the machine NEN frame cross members 9, 10 are attached at the end to the machine frame side members 7, 8, so that the machine frame 3 has a rectangular shape.
• the cross arm 5 is telescopically displaceable in the machine frame cross members 9, 10, so that the guide rollers 4 are spaced apart from one another in the y direction.
• 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 apart 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 cross beams 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 approximately centrally downward from the respective first section 18, viewed in a vertical direction.
• the vertical direction is also referred to below as the z direction and is 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 is rotatably mounted on the respective cross member 16, 17.
• the first cross-slide guide rollers 20 are mounted in the z-direction at a distance from the second cross-slide guide rollers 21, so that the first cross-slide guide rollers 20 bear against an upper side of the machine frame 3, whereas the second cross-slide guide rollers 21 against an egg - Apply to the underside of the machine frame 3.
• the cross slide guide rollers 20, 21 have a self-centering cross-sectional shape, so that the cross slide 11 is guided self-centering on the machine frame 3.
• the cross slide spindle drive 12 is fastened to the cross slide 11 and the machine frame 3 and can be operated manually by means of a handwheel 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 so as to be pivotable about a pivot axis 24.
• the guide frame 23 comprises two guide columns 25, 26 and a connecting carrier 27 connecting the guide columns 25, 26.
• the guide columns 25, 26 are each arranged at the end on one of the second sections 19 of the cross members 16, 17.
• 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 viewed in plan view — delimits 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 one end opposite the pivot axis 24 by means of the connection carrier 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 fastened to the cross slide 11 and the guide frame 23 and can be actuated manually by means of a handwheel 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 can be pivoted about the pivot axis 24 by means of the guide frame 23.
• the grinding unit carrier 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 members 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 in the z direction.
• the grinding unit 32 is fixed to the first longitudinal beam 37 facing the cross slide 11, that is to say it cannot be displaced. To move the support frame 34, the
• Grinding machine 1 has a grinding unit spindle drive 39, which on the Connection carrier 27 and 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 handwheel 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 - viewed in the z direction - arranged below the longitudinal member 37, whereas the drive motor 41 is arranged above the longitudinal member 37.
• the drive motor 41 extends at least partially into an interior space which 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 support frame 34, the grinding machine 1 has a simple and stable construction. Due to the linearly displaceable cross slide 11, the pivotable guide frame 23 and the linearly displaceable grinding unit carrier 33 or carrier frame 34, the grinding unit 32 is flexibly adjustable for grinding rails 2.

Landscapes

• 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)

Priority Applications (9)

Applications Claiming Priority (1)

Publications (1)

Family

ID=62952033

Family Applications (1)

Country Status (8)

Cited By (1)

Families Citing this family (1)

Citations (4)

Family Cites Families (19)

• 2018
  • 2018-06-15 EP EP18742708.3A patent/EP3765670B1/de active Active
  • 2018-06-15 CN CN201880092355.4A patent/CN111971434B/zh active Active
  • 2018-06-15 WO PCT/EP2018/066001 patent/WO2019238247A1/de unknown
  • 2018-06-15 JP JP2020566679A patent/JP7275170B2/ja active Active
  • 2018-06-15 AU AU2018427985A patent/AU2018427985A1/en active Pending
  • 2018-06-15 CN CN202110818421.5A patent/CN113463454A/zh active Pending
  • 2018-06-15 PL PL18742708.3T patent/PL3765670T3/pl unknown
  • 2018-06-15 EA EA202092167A patent/EA202092167A1/ru unknown
  • 2018-06-15 US US17/049,082 patent/US20210237222A1/en active Pending

Patent Citations (4)

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