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EP4227462A1 - Meuleuse et procédé de meulage pour une voie ferrée - Google Patents

Meuleuse et procédé de meulage pour une voie ferrée Download PDF

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Publication number
EP4227462A1
EP4227462A1 EP22156807.4A EP22156807A EP4227462A1 EP 4227462 A1 EP4227462 A1 EP 4227462A1 EP 22156807 A EP22156807 A EP 22156807A EP 4227462 A1 EP4227462 A1 EP 4227462A1
Authority
EP
European Patent Office
Prior art keywords
working body
grinding
grinding machine
bar
rail track
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.)
Pending
Application number
EP22156807.4A
Other languages
German (de)
English (en)
Inventor
Karsten CESCHIA
Sven KUMMER
Johannes Stercl
Richard Schienbein
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.)
Goldschmidt Holding GmbH
Original Assignee
Goldschmidt Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goldschmidt Holding GmbH filed Critical Goldschmidt Holding GmbH
Priority to EP22156807.4A priority Critical patent/EP4227462A1/fr
Priority to PCT/EP2023/051982 priority patent/WO2023156166A1/fr
Publication of EP4227462A1 publication Critical patent/EP4227462A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding

Definitions

  • the present invention relates to a grinding machine for a rail track and a grinding method for a rail track.
  • the objective of the present invention is to provide a grinding machine and a grinding method to change the grinding feed without deforming the machine body and without deviating a guidance wheel out of the rail track and without being inconvenient to operate, to tilt the machine for grinding the whole railhead, and/or to reduce the machine weight.
  • a first aspect of the present invention provides a grinding machine for a rail track, comprising: a bar arranged in parallel to the rail track, a working body attaching to the bar and movable relative to the bar, a grinding unit connected to the working body for grinding the rail track, a motor for supplying power to the grinding unit, and a position adjustment mechanism attached to the working body and to the bar for adjusting the position of the working body so that the working body is movable relative to the bar to change the feed of the grinding unit onto the rail track.
  • a first rotation means including a first axis and disposed between the working body and the bar, wherein the first rotation means allows the working body to be pivotable around the first axis in the direction T and to be movable relative to the bar in the direction U when the position adjustment mechanism moves the working body.
  • a second rotation means including a second axis and disposed between the position adjustment mechanism and the bar, wherein the second rotation means allows the position adjustment mechanism to be pivotable around the second axis in direction S when the position adjustment mechanism moves the working body.
  • the working body includes a hole for accommodating the first axis of the first rotation means when the working body incurs the movement in the direction U relative to the first rotation means during the operation of the position adjustment mechanism.
  • the hole of the working body is shaped to keep the distance between the first axis of the first rotation means and the second axis of the second rotation means constant during the movement of the working body.
  • the position adjustment mechanism includes: a driving actuator for an operator to activate the position adjustment mechanism, an adjustment spindle for changing the distance between the driving actuator and the second axis of the second rotation means by rotating the driving actuator, and a bellow covering around the adjustment spindle to protect dust from entering the adjustment spindle.
  • the working body includes an extending flange for connecting the working body to the position adjustment mechanism.
  • the first rotation means and the second rotation means are axially rotatable around the bar in the direction W so that the working body is tiltable around the bar to allow the grinding unit to grind the railhead of the rail track.
  • a ninth aspect of the present invention according to one of the first to eighth aspects, further comprising a handle fixed on the bar for an operator to hold onto.
  • the handle further comprises a stick in parallel to the bar.
  • the working body comprising a clip which engages the working body to the stick of the handle or disengages the working body from the stick of the handle.
  • the grinding unit is a grinding stone, a grinding disc, or a grinding belt.
  • the driving actuator is driven by an operator, an electric power source, or a hydraulic power source.
  • the driving actuator is a handwheel.
  • the position adjustment mechanism includes a locking means for controlling the driving actuator.
  • a seventeenth aspect of the present invention provides a grinding method for a rail track, comprising: providing a grinding machine according to one of the first to sixteenth aspects, grinding the rail track using the grinding machine, and actuating the position adjustment mechanism for adjusting the position of the working body so that the working body is movable relative to the bar to change the feed of the grinding unit onto the rail track.
  • Fig. 2 is a perspective view of a grinding machine for a rail track in accordance with the first embodiment of the present invention.
  • Fig. 3 is another perspective view of the grinding machine of Fig. 2 .
  • Fig. 4a is a front view of the grinding machine of Fig. 2 in the original position.
  • Fig. 4b is an enlarged view of section A of the grinding machine of Fig. 4a in the original position.
  • Fig. 5a is a front view of the grinding machine of Fig. 2 in the adjusted position.
  • Fig. 5b is an enlarged view of section B of the grinding machine of Fig. 5a in the adjusted position.
  • Fig. 6 is a front view of the grinding machine of Fig. 2 which is applied to a rail track in the original position.
  • Fig. 4a is a front view of the grinding machine of Fig. 2 in the original position.
  • Fig. 4b is an enlarged view of section A of the grinding machine of Fig. 4a in the original position.
  • FIG. 7 is a front view of the grinding machine of Fig. 2 which is applied to a rail track in the adjusted position.
  • Fig. 8 is a perspective view of the grinding machine of Fig. 2 which is applied to a rail track in the tilted position.
  • Fig. 9 is a side view of the grinding machine of Fig. 2 which is applied to a rail track in the untilted position.
  • Fig. 10 is a side view of the grinding machine of Fig. 2 which is applied to a rail track in the tilted position.
  • a grinding machine 1 for a rail track 2 comprises: a bar 10, a working body 11, a grinding unit 12, a motor 13, a position adjustment mechanism 14, a first rotation means 15, a second rotation means 16, a handle 17, a front guidance wheel 18, and a back guidance wheel 19.
  • the bar 10 is arranged in parallel to the rail track 2 and is equipped with the front guidance wheel 18 and the back guidance wheel 19 at the two ends of the bar 10.
  • the front guidance wheel 18 and the back guidance wheel 19 guide the grinding machine 1 along the rail track 2 and avoid the grinding machine 1 falling out of the rail track 2.
  • the working body 11 is attached to the bar 10 and is horizontally and axially movable relative to the bar 10.
  • the working body 11 is used for holding the grinding unit 12 and the motor 13.
  • the motor 13 can be provided outside of the grinding machine 1.
  • the working body 11 includes an opening for accommodating the grinding unit 12.
  • the grinding unit 12 is connected to the working body 11 for grinding and perpendicularly passes through the opening of the working body 11.
  • the grinding unit 12 is a grinding stone.
  • the grinding unit 12 can also be a grinding disc or a grinding belt.
  • the grinding unit 12 can also be any kind of railway repairing tool, such as a driller unit, a preheater, a welder, or a clamp.
  • the motor 13 is used for supplying power to the grinding unit 12.
  • the power source of the motor 13 can be electrical power, batteries, gasoline source, diesel source, hydraulic source, or any kind of power source.
  • the position adjustment mechanism 14 is attached to the working body 11 and is attached to the bar 10 for adjusting the position of the working body 11.
  • the working body 11 is movable relative to the bar 10 to change the feed of the grinding unit 12 onto the rail track 2.
  • the position adjustment mechanism 14 can change the grinding machine 1 from the original position ( Fig. 4a ) to the adjusted position ( Fig. 5a ).
  • the working body 11 includes an extending flange 112 for connecting the working body 11 to the position adjustment mechanism 14. The extending flange 112 allows the operator to control the movement of the working body 11 easier.
  • the handle 17 is fixed on the bar 10 for an operator to hold onto. During operation, the operator can hold the handle 17 to move the grinding machine 1 back and forth along the rail track 2 and tilt the grinding machine 1 around the railhead of the rail track 2.
  • the grinding machine 1 includes a first rotation means 15 including a first axis 151 and a second rotation means 16 including a second axis 161 to change the grinding feed without deforming the grinding machine 1 and without deviating the front guidance wheel 18 and the back guidance wheel 19 out of the rail track 2.
  • the first rotation means 15 includes the first axis 151 and is disposed between the working body 11 and the bar 10.
  • the working body 11 includes a hole 111 for accommodating the first axis 151 of the first rotation means 15 when the working body 11 incurs a movement in the direction U relative to the first rotation means 15 during the operation of the position adjustment mechanism 14 so that the working body 11 is flexibly balanced.
  • the hole 111 of the working body 11 is shaped to keep the distance between the first axis 151 of the first rotation means 15 and the second axis 161 of the second rotation means 16 constant during the movement of the working body 11.
  • the hole 111 of the working body 11 facilitates the rotation of the working body 11 around the first axis 151 of the first rotation means 15.
  • the front guidance wheel 18 and the back guidance wheel 19 do not deviate out of the rail track 2 because the distance therebetween keeps constant.
  • the first axis 151 of the first rotation means 15 does not move along the direction U.
  • the first rotation means 15 allows the working body 11 to be pivotable around the first axis 151 in the direction T and to be movable relative to the bar 10 in the direction U, as shown in Figs. 4b and 5b (the adjusted position).
  • the second rotation means 16 includes the second axis 161 and is disposed between the position adjustment mechanism 14 and the bar 10.
  • the second rotation means 16 allows the position adjustment mechanism 14 to be pivotable around the second axis 161 in direction S.
  • the movement in the direction S at the second rotation means 16 and the movement in the direction U at the first rotation means 15 keep the length of the working body 11 balanced, as shown in Fig. 5a (the adjusted position). Namely, the working body 11 does not crush or deform from the movements when the grinding machine 1 changes from the original position ( Fig. 4a and 4b ) to the adjusted position ( Fig. 5a and 6b).
  • the rotation mechanism of the first rotation means 15 and the second rotation means 16 leads to an angle ⁇ of at least 1.5 degrees between the working body 11 and the bar 10, as shown in Fig. 7 .
  • the angle ⁇ can also be 0-20 degrees. Therefore, an angle between the grinding unit 12 and the rail track 2 may exist.
  • the sloped grinding unit 12 also increases the grinding performance on the rail track 2, as shown in Fig. 7 .
  • the position adjustment mechanism 14 includes a driving actuator 141, an adjustment spindle 142, a locking means 144, and a bellow 143.
  • the position adjustment activates the movement in the direction R and changes the feed of the grinding unit 12.
  • the driving actuator 141 is used for an operator to activate the position adjustment mechanism 14 by rotating or counter-rotating the wheel.
  • the adjustment spindle 142 changes the distance between the driving actuator 141 and the second axis 161 of the second rotation means 16.
  • the bellow 143 covering around the adjustment spindle 142 protects dust from entering the adjustment spindle 142.
  • the bellow 143 is preferably made of rubber or plastic.
  • the driving actuator 141 is driven by an operator and is a handwheel 1411.
  • the operator can operate the handwheel 1411 by hand to control the adjustment spindle 142.
  • the locking means 144 is used for controlling the rotation of the driving actuator 141 to prevent the driving actuator 141 from being automatically rotated. In other words, the locking means 144 prevents the driving actuator 141 from turning independently due to vibrations.
  • the driving actuator 141 is driven by an electric power source or a hydraulic power source.
  • the electric power source or the hydraulic power source can be installed on the handle 17 so that the operator can easily control the driving actuator 141 when the operator holds the handle 17. Namely, the operator does not need to turn the driving actuator 141 by hand. This helps the operator to easily use the grinding machine 1.
  • the tilting function of the grinding machine 1 allows the operator to grind the whole railhead without hugely bending his or her body to operate the grinding machine 1. That is, the grinding machine 1 can be tilted from the untilted position ( Fig. 9 ) to the tilted position ( Fig. 10 ).
  • the grinding machine 1 is convenient for an operator to grind the rail track 2.
  • the first rotation means 15 and the second rotation means 16 are axially rotatable around the bar 10 in the direction W so that the working body 11 is tiltable around the bar 10 to allow the grinding unit 12 to grind the railhead of the rail track 2.
  • the tiltable angle ⁇ of the working body 11 is from 0 to 90 degrees with respect to the handle 17.
  • the tiltable angle ⁇ of the working body 11 can also be from 0 to 130 degrees in respect to the handle 17.
  • the handle 17 further comprises a stick 171 parallel to the bar 10.
  • the stick 171 is located nearly adjacent to the working body 11 and is parallel to the working body 11.
  • the working body 11 comprises a clip 113.
  • the operator When the operator grinds the top of the railhead, the operator can stand and does not need to bend his or her body to operate the grinding machine 1. At this time, the clip 113 engages the working body 11 to the stick 171 of the handle 17. In contrast, if the operator wants to grind the edge of the railhead, the operator just needs to disengage the working body 11 from the stick 171 of the handle 17. Namely, the clip 113 disengages the working body 11 from the stick 171 of the handle 17. In this way, the operator can tilt the working body 11 at a tilted position ( Fig. 8 ) for grinding the side of the rail track 2 (i.e., running edge).
  • the present invention provides a grinding method for a rail track 2.
  • the grinding machine 1 of the present invention is provided.
  • the operator grinds the rail track 2 using the grinding machine 1.
  • the operator can actuate the position adjustment mechanism 14 for adjusting the position of the working body 11 so that the working body 11 is movable relative to the bar 10 to change the feed of the grinding unit 12 onto the rail track 2. Namely, the grinding machine 1 is changed from the original position ( Fig. 6 ) to the adjusted position ( Fig. 7 ).
  • the operator can disengage the clip 113 of the working body 11 from the stick 171 of the handle 17 so that the grinding machine 1 is changed from the untilted position ( Fig. 9 ) to the tilted position ( Fig. 10 ).
  • the present invention can change the grinding feed efficiently without deforming the working body 11 and without deviating the front guidance wheel 18 and the back guidance wheel 19 out of the rail track 2, and can tilt the grinding machine 1 for grinding the whole railhead, and can reduce the grinding machine 1 weight.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
EP22156807.4A 2022-02-15 2022-02-15 Meuleuse et procédé de meulage pour une voie ferrée Pending EP4227462A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22156807.4A EP4227462A1 (fr) 2022-02-15 2022-02-15 Meuleuse et procédé de meulage pour une voie ferrée
PCT/EP2023/051982 WO2023156166A1 (fr) 2022-02-15 2023-01-27 Meuleuse et procédé de meulage pour une voie ferrée

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22156807.4A EP4227462A1 (fr) 2022-02-15 2022-02-15 Meuleuse et procédé de meulage pour une voie ferrée

Publications (1)

Publication Number Publication Date
EP4227462A1 true EP4227462A1 (fr) 2023-08-16

Family

ID=80682747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22156807.4A Pending EP4227462A1 (fr) 2022-02-15 2022-02-15 Meuleuse et procédé de meulage pour une voie ferrée

Country Status (2)

Country Link
EP (1) EP4227462A1 (fr)
WO (1) WO2023156166A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118621A (en) * 1935-02-15 1938-05-24 Henry J Perazzoli Track grinder
WO2012146540A1 (fr) * 2011-04-26 2012-11-01 Fama S.R.L. Machine de meulage tangentiel
CN203144852U (zh) * 2013-01-29 2013-08-21 呼和浩特铁路局焊轨段 轨道电路分路不良打磨机
WO2017035210A1 (fr) * 2015-08-24 2017-03-02 Stanley Black & Decker, Inc. Appareil à outils de voie de chemin de fer
DE202017002300U1 (de) * 2017-04-29 2018-01-15 Robel Bahnbaumaschinen Gmbh Schleifmaschine zum Schleifen einer Schiene eines Gleises
WO2018215362A1 (fr) 2017-05-26 2018-11-29 Robel Bahnbaumaschinen Gmbh Meuleuse de rail et procédé de meulage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118621A (en) * 1935-02-15 1938-05-24 Henry J Perazzoli Track grinder
WO2012146540A1 (fr) * 2011-04-26 2012-11-01 Fama S.R.L. Machine de meulage tangentiel
CN203144852U (zh) * 2013-01-29 2013-08-21 呼和浩特铁路局焊轨段 轨道电路分路不良打磨机
WO2017035210A1 (fr) * 2015-08-24 2017-03-02 Stanley Black & Decker, Inc. Appareil à outils de voie de chemin de fer
DE202017002300U1 (de) * 2017-04-29 2018-01-15 Robel Bahnbaumaschinen Gmbh Schleifmaschine zum Schleifen einer Schiene eines Gleises
WO2018215362A1 (fr) 2017-05-26 2018-11-29 Robel Bahnbaumaschinen Gmbh Meuleuse de rail et procédé de meulage

Also Published As

Publication number Publication date
WO2023156166A1 (fr) 2023-08-24

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