EP2761089A1 - Tangentialschleifmaschine - Google Patents

Tangentialschleifmaschine

Info

Publication number
EP2761089A1
EP2761089A1 EP12717657.6A EP12717657A EP2761089A1 EP 2761089 A1 EP2761089 A1 EP 2761089A1 EP 12717657 A EP12717657 A EP 12717657A EP 2761089 A1 EP2761089 A1 EP 2761089A1
Authority
EP
European Patent Office
Prior art keywords
frame
machine
rails
plate
frames
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12717657.6A
Other languages
English (en)
French (fr)
Other versions
EP2761089B1 (de
Inventor
Claudio Favaron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fama Srl
Original Assignee
Fama Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fama Srl filed Critical Fama Srl
Publication of EP2761089A1 publication Critical patent/EP2761089A1/de
Application granted granted Critical
Publication of EP2761089B1 publication Critical patent/EP2761089B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0007—Movable machines
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools

Definitions

  • the present invention relates to a tangential grinding machine.
  • Tangential grinding machines for regenerating the worn profile of rails on site, comprising a grinding device consisting essentially of a grinding wheel of abrasive material which when rotated removes by abrasion a part of the material with which it comes into contact.
  • each grinding device consists generally of a d isc of abrasive material , or grind ing wheel , designed to operate with its circumferential edge.
  • a further drawback of a tangential grinding wheel is the fact that to re- profile a ra il an apparatus with a negative contou r is requ ired , such an apparatus being of high cost.
  • the final rail therefore presents a polygonal profile instead of the orig inal rad iused profile, with the cusps being flattened out and the profile being rounded by the subsequent passage of the train wheels, causing a continuous mechanical and metallurgic shock on the rail surface.
  • those cup wheels which operate on the rail lateral surface are hindered by the presence of natural obstacles such as points, guide and containing blades at the points and , in the particular case of tram-rails, the cement and asphalt plus the actual rail counterblade.
  • a further drawback is that cup grinding wheels generally have to work on both rails simultaneously for mass balancing reasons. This makes it more difficult to carry out grinding work on a single rail, such as the central earth rail or the outer lateral live rail for subway trains.
  • Figure 1 is a perspective view of the base structure, the first frame and the second frame of the grinding machine according to the invention;
  • Figure 2 shows it in the same view as Figure 1 but with the add ition of the support plate, and;
  • FIG. 3 shows it with the grinding unit mounted.
  • th e mach in e comprises substantially a base structure 2 mounted on four wheels 4 with their rim 6 slidable on the rails 8 to be ground.
  • the frame 1 8 can be moved horizontally by cylinder-piston units 22 which urge said frame outwards until abutment means 24, rigid with it, come into contact with the head 26 of the rail 8.
  • the vertical and horizontal sections of the frame 1 8 are connected together by a curved portion 28 comprising a plurality of holes 30.
  • a plate 46 is appl ied in a positionable manner to the annular portion 38, and locked to said portion by stops 48.
  • Said plate 46 supports a motor 50 which operates an abrasive grinding wheel by means of a pulley 52.
  • the machine of the invention is firstly transferred to the site on which that section of rail to be ground is located, after which the procedure is as follows:
  • the frame 32 is adjusted with respect to the curved portion 28 such as to slightly incl ine the axis of the grinding wheel 54 to the longitudinal axis of the rail 8 (inclination variation),
  • the plate 46 is adjusted relative to the annular portion 38 such as to vary the angle which the axis of the grinding wheel 54 makes to the axis of the rail (convergence variation),
  • the cyl inder-piston u n its 44 or red u cers 45 are operated to bri ng the grinding wheel 54 into contact with the rail, and the cylinder-piston units 22 are operated such that the sensors 24 lie in contact with the rail head,
  • the motor 50 is operated to rotate the grinding wheel 54.
  • the grind ing wheel implements its abrasive effect by virtue of the operating pressure on the cyl inder-piston u n its 44 , su itably regulated by pressure reducers, while wearing down in accordance with a certain profile having a rad ius independent of the worn contour of the rail by virtue of its particular disposition (inclination, convergence and translation relative to the rail). For each radius of the rail profile there corresponds a suitably positioned tangential grinding wheel .
  • th e inclination of the second frame 32 to the curved portion 28 and/or the position of the plate 46 relative to the annular portion 38 have merely to be varied such as to vary the inclination or the convergence of the grinding wheel to the rail .
  • the tangential grinding machine completely eliminates the negative contour which continuously reprofiles the grinding wheel by making the regeneration of the profile of the tangential grinding wheel take place by the abrasive wear due to the contact between the grinding wheel and rail (self-profiling).
  • the rail becomes both a material to be ground and a negative contour, which continuously regenerates the profile of the tangential grind ing wheel , so also el im inating the entire wastage of abrasive material caused by traditional tangential systems.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Cyclones (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP12717657.6A 2011-04-26 2012-04-20 Tangentialschleifmaschine Active EP2761089B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000025A ITVE20110025A1 (it) 2011-04-26 2011-04-26 Macchina molatrice tangenziale.
PCT/EP2012/057287 WO2012146540A1 (en) 2011-04-26 2012-04-20 Tangential grinding machine

Publications (2)

Publication Number Publication Date
EP2761089A1 true EP2761089A1 (de) 2014-08-06
EP2761089B1 EP2761089B1 (de) 2015-12-30

Family

ID=44554220

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12717657.6A Active EP2761089B1 (de) 2011-04-26 2012-04-20 Tangentialschleifmaschine

Country Status (5)

Country Link
EP (1) EP2761089B1 (de)
CN (1) CN103518020B (de)
ES (1) ES2561409T3 (de)
IT (1) ITVE20110025A1 (de)
WO (1) WO2012146540A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105290900A (zh) * 2014-05-27 2016-02-03 北京鼎新时代科技有限公司 大重量铸坯修磨机及设计方法
ES2673918T3 (es) * 2014-06-24 2018-06-26 Fama S.R.L. Rectificadora tangencial para perfiles ferroviarios
JP6005114B2 (ja) * 2014-09-29 2016-10-12 三菱重工業株式会社 走行路の研削装置、及び走行路の研削方法
CN106112733B (zh) * 2016-06-23 2018-05-29 中国人民解放军第五七一九工厂 发动机限动器型面仿形打磨装置
CN106808333B (zh) * 2016-09-21 2018-09-07 比亚迪股份有限公司 用于轻轨轨道预制体的打磨装置
CN108103863B (zh) * 2017-11-15 2019-07-19 钟锦照 一种铁路用铁轨打磨装置
CN107984351A (zh) * 2017-12-29 2018-05-04 山东太古飞机工程有限公司 飞机复合材料蜂窝一次成型装置
CN111993164A (zh) * 2020-08-24 2020-11-27 安徽新境界自动化技术有限公司 一种双臂协同智能化机器人打磨机
CN113927410B (zh) * 2021-10-13 2022-07-26 中国铁路兰州局集团有限公司兰州工务机械段 一种数字计量信息采集器

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB959873A (en) * 1962-01-10 1964-06-03 Michigan Tool Co Improvements in grinding machines
AT344772B (de) * 1975-12-01 1978-08-10 Plasser Bahnbaumasch Franz Schienenschleifmaschine
IT1218120B (it) * 1986-10-01 1990-04-12 Claudio Baldo Macchina molatrice e/o rettificatrice tangenziale
IT1239247B (it) * 1990-05-08 1993-09-28 Rotafer Macchina rettificatrice tangenziale, particolarmente per rotaie ferroviarie
CN2250374Y (zh) * 1995-10-12 1997-03-26 沈阳铁路局锦州工程处电器设备厂 两用钢轨打磨机
IT1291080B1 (it) * 1996-11-12 1998-12-14 Mecno Srl Macchina molatrice tangenziale
FR2814765B1 (fr) * 2000-09-29 2004-02-13 Geismar Ancien Ets L Systeme de commande de la meule d'une machine de meulage notamment de rails
PL2177664T3 (pl) * 2008-10-20 2012-07-31 Schweerbau Gmbh & Co Kg Sposób i urządzenie do obróbki skrawaniem obrabianego przedmiotu określoną geometrycznie krawędzią tnącą
SE534317C2 (sv) * 2009-11-13 2011-07-05 Ind I Ystad Ab Metod och maskin för bearbetning av skarvar i järnvägsräls
FR2954784B1 (fr) * 2009-12-29 2012-01-13 Geismar Ancien Ets L Meuleuse de profil de rails
CN101864708B (zh) * 2010-06-24 2011-12-28 重庆运达机电设备制造有限公司 小型钢轨内燃砂带打磨机
CN201952693U (zh) * 2010-09-13 2011-08-31 季关钰 现场用钢轨轨底焊缝打磨机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012146540A1 *

Also Published As

Publication number Publication date
ES2561409T3 (es) 2016-02-26
EP2761089B1 (de) 2015-12-30
CN103518020B (zh) 2016-07-06
WO2012146540A1 (en) 2012-11-01
ITVE20110025A1 (it) 2012-10-27
CN103518020A (zh) 2014-01-15

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