US20200189062A1 - Rail grinding machine displaceable manually on the rails of a track - Google Patents

Rail grinding machine displaceable manually on the rails of a track Download PDF

Info

Publication number
US20200189062A1
US20200189062A1 US16/615,939 US201816615939A US2020189062A1 US 20200189062 A1 US20200189062 A1 US 20200189062A1 US 201816615939 A US201816615939 A US 201816615939A US 2020189062 A1 US2020189062 A1 US 2020189062A1
Authority
US
United States
Prior art keywords
grinding
drive motor
grinding tool
blower
rail
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.)
Abandoned
Application number
US16/615,939
Other languages
English (en)
Inventor
Dieter Ludwig Kamml
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
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 Robel Bahnbaumaschinen GmbH filed Critical Robel Bahnbaumaschinen GmbH
Assigned to ROBEL BAHNBAUMASCHINEN GMBH reassignment ROBEL BAHNBAUMASCHINEN GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAMML, Dieter Ludwig
Publication of US20200189062A1 publication Critical patent/US20200189062A1/en
Abandoned legal-status Critical Current

Links

Images

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
    • 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

Definitions

  • the invention relates to a rail grinding machine, which is displaceable manually on the rails of a track in a longitudinal direction, the rail grinding machine comprising
  • Rail grinding machines of this type which are known from DE 20 2010 007 264 U1, for example, are very flexible in use and can be moved rapidly from one position to be machined to another, for example for grinding the welding beads between weld joints.
  • Rail grinding machines of this type there is the requirement that they should provide a maximum grinding performance and a high grinding quality at the same time.
  • the invention is based on the object of refining a rail grinding machine of the generic type in such a way as to provide an improved grinding performance as well as an improved grinding quality.
  • this object is achieved for a rail grinding machine according to the preamble of claim 1 in such a way that a blower is arranged above the grinding tool in order to move air downwardly past the drive motor and the grinding tool.
  • This measure ensures that the aspirated air is guided past the drive motor, causing it to be cooled to the required extent, and that this air, which is at the same time the cooling exhaust air of the motor, is then guided past the grinding tool, causing the grinding tool to be cooled as well, which results in an increased service life and, therefore, an increased grinding performance thereof. Guiding the air from the motor downwardly past the grinding tool will cause the air to strike the rail head surface such that chips and metal dust adhering thereto are removed. This increases the grinding quality, in other words the surface roughness of the ground rail head surface is reduced.
  • the effects achieved according to the invention are optimized in that a jacket is provided, which surrounds the drive motor and the grinding tool at least partly, with air ducts being formed between the jacket and the drive motor on the one hand and the grinding tool on the other, the air ducts being connected to the blower. This ensures that a targeted and, therefore, highly efficient air guidance past the motor and then towards the grinding tool is achieved.
  • the blower is arranged between the drive motor and the grinding tool, wherein the air duct between the drive motor and the jacket is an air intake duct while the duct between the grinding tool and the jacket is an exhaust air duct.
  • An optimum design of the blower is achieved if it has an impeller that is provided with a cover with a central intake opening and is coupled to the drive shaft in a co-rotational manner.
  • the air flows from the intake duct between the jacket and the drive motor to the central opening, the air flows through the gap between the housing of the drive motor and the cover, with the result that the drive motor is also cooled at its front end.
  • the air intake duct is extended, between the cover and the drive motor, towards the intake opening.
  • the grinding apparatus has, in the vast majority of cases, a servo-motor arranged above the drive motor for the axial displacement of the drive shaft, which enables the grinding tool to be fed towards the rail and readjusted in the event of corresponding wear.
  • the blower is fastened to the drive shaft in such a way that it is not displaceable axially in relation to the drive shaft. In other words, the blower is moved together with the grinding tool, causing the disk-shaped gap between the drive motor and the blower to be increased.
  • FIG. 1 shows a side view of a manually guided rail grinding machine
  • FIG. 2 shows a vertical longitudinal section through the grinding apparatus of the grinding machine as shown in FIG. 1 .
  • the grinding machine 1 shown in FIG. 1 for grinding in each case one rail 2 of a track has a machine frame 3 , which is guided on the rail 2 via guide rolls 4 .
  • the frame 3 is supported on the other rail (not shown) of the track as is common practice in practical application and known from DE 20 2010 007 264 U1.
  • the machine frame 3 is provided with handles 5 allowing the grinding machine 1 to be arranged on and removed from the rail.
  • a grinding unit 6 is mounted such as to be pivotable about a pivot axis 7 parallel to the rail 2 .
  • This grinding unit 6 has a mounting bracket 8 , which is mounted, at its ends, in pivot bearings 9 disposed on the machine frame 3 , the pivot bearings 9 defining the pivot axis 7 and being supported on the rail 2 by means of sensing rollers 10 .
  • the upwardly bent mounting bracket 8 carries a grinding apparatus 11 arranged approximately in the center thereof.
  • This grinding apparatus 11 has, at its center, an electric grinding drive motor 12 and a servo-motor 13 , which is also electric, the servo-motor being arranged above said grinding drive motor 12 .
  • a grinding tool 14 configured as a cup grinding wheel is provided below the grinding drive motor 12 .
  • the drive motor 12 and the servo-motor 13 are supplied with electrical energy from an energy supply module arranged on the mentioned cross-beam, for example an electric generator, driven by means of an Otto-cycle engine, with a downstream storage battery as is common practice in practical application and known from DE 20 2010 007 264 U1.
  • the grinding apparatus 11 is supplied with energy via a line 15 .
  • the mounting bracket 8 with the grinding apparatus 11 is pivoted manually by means of a pivot spindle drive 16 .
  • the grinding apparatus 11 has a housing 17 , which is firmly connected to the mounting bracket 8 .
  • the drive motor 12 is arranged below the mounting bracket 8 .
  • the drive motor 12 is a so-called external rotor motor the stator 18 of which is firmly connected to the housing 17 .
  • the rotor 19 which is arranged in the housing 17 radially outside the stator 18 , is connected to the drive shaft 20 for the grinding tool 14 in a non-rotational manner while the drive shaft 20 , however, is displaceable in relation to the rotor 19 in the direction of its longitudinal center axis 21 forming the axis of rotation.
  • the rotor 19 With its inner rotor sleeve 22 that accommodates the drive shaft 20 , the rotor 19 is rotatable in the stator 18 by means of roller bearings 23 but is mounted in such a way as to be non-displaceable in the direction of the longitudinal center axis 21 . Between the stator 18 and the radially outer sleeve-like rotor portion 24 , the stator laminations 25 are arranged.
  • the servo-motor 13 is arranged on the housing 17 , which is capable of driving, by means of its servo-motor shaft 26 , a threaded spindle 27 firmly connected thereto of a spindle nut drive 28 .
  • the threaded spindle 27 is arranged in a spindle nut 29 , which moves the drive shaft 20 in the direction of the axis 21 when the servo-motor shaft 26 and, therefore, the threaded spindle 27 , are being rotated, causing the grinding tool 14 to be shifted in the direction of the axis 21 as well.
  • the drive motor 12 On its lower side, the drive motor 12 is closed by means of a cover plate 30 , which is firmly connected to the housing 17 .
  • a blower 31 is arranged, which is non-rotationally and non-displaceably connected to the drive shaft 20 and is shifted together with the drive shaft 20 in the direction of the longitudinal center axis 21 when the drive shaft 20 is being displaced.
  • the distance between the blower 31 and the grinding tool 14 is unchangeable whereas the distance between the blower 31 and the drive motor 12 changes in the event of said axial displacements explained above.
  • the blower 31 has an impeller 32 , which has radially extending blades 33 .
  • the blades 33 are covered by a cover 34 , which has a large central opening 35 .
  • an air gap 36 is formed, which changes its axial width when the grinding tool 14 is being shifted as explained above.
  • the cover 34 is bent downwardly in its outer area such that a downwardly directed deflecting portion 37 is formed that guides the air towards the outer circumference 38 of the grinding tool 14 .
  • the drive motor 12 , the blower 31 and the grinding tool 14 are surrounded by a substantially cylindrical jacket 39 , which defines an air intake duct 40 between the jacket 39 and the region of the housing 17 that is associated to the drive motor 12 .
  • This is adjoined by the air gap 36 so the aspirated air flows around the outer circumference and the lower side of the drive motor 12 in such a way that a corresponding cooling effect is obtained.
  • the air is aspirated centrally through the opening 35 of the blower 31 and accelerated radially outwardly by means of the impeller 32 and discharged again in the direction of the rail 2 through an exhaust air duct 41 between the grinding tool 14 and the jacket 39 .
  • the grinding tool is cooled in this manner. Also, grinding chips disposed on the rail 2 are blown away so the grinding head is cleaned.
  • the air flow as a whole is designated by reference numeral 42 .
  • the jacket 39 is provided with lateral protective plates 43 serving as a protection against free-flowing chips.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
US16/615,939 2017-05-22 2018-05-18 Rail grinding machine displaceable manually on the rails of a track Abandoned US20200189062A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202017103078.4U DE202017103078U1 (de) 2017-05-22 2017-05-22 Manuell auf den Schienen eines Gleises verschiebbare Schienen-Schleifmaschine
DE202017103078 2017-05-22
PCT/EP2018/063186 WO2018215363A1 (de) 2017-05-22 2018-05-18 Manuell auf den schienen eines gleises verschiebbare schienen-schleifmaschine

Publications (1)

Publication Number Publication Date
US20200189062A1 true US20200189062A1 (en) 2020-06-18

Family

ID=59295836

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/615,939 Abandoned US20200189062A1 (en) 2017-05-22 2018-05-18 Rail grinding machine displaceable manually on the rails of a track

Country Status (10)

Country Link
US (1) US20200189062A1 (ru)
EP (1) EP3426843B1 (ru)
JP (1) JP2020521075A (ru)
CN (1) CN110651084B (ru)
AU (1) AU2018274558A1 (ru)
DE (1) DE202017103078U1 (ru)
DK (1) DK3426843T3 (ru)
EA (1) EA201992481A1 (ru)
PL (1) PL3426843T3 (ru)
WO (1) WO2018215363A1 (ru)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202018104152U1 (de) * 2018-07-19 2019-10-23 Robel Bahnbaumaschinen Gmbh Schienen-Schleifmaschine zum Schleifen von Schienen eines Gleises

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178724A (en) * 1978-03-23 1979-12-18 Harsco Corporation Rail grinding system
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4829723A (en) * 1987-10-16 1989-05-16 Loram Maintenance Of Way, Inc. Rail grinding machine
US4864776A (en) * 1987-08-21 1989-09-12 Winders, Barlow And Morrison Pty. Ltd. Rail grinding apparatus
US20070066193A1 (en) * 2005-09-16 2007-03-22 Speno International S.A. Reprofiling device for the rails of railroads that captures waste

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1722100U (de) * 1956-02-02 1956-05-09 Eisen & Stahlind Ag Schienen- und schienenstoss-schleifmaschine.
CH671595A5 (en) * 1987-05-14 1989-09-15 Speno International Railway line rectifier - has filtering system with fan to remove and separate abrasive and metal particles
US5111624A (en) * 1990-09-10 1992-05-12 Loram Maintenance Of Way, Inc. Method and apparatus for limiting the dispersion of rail grinding machine spark and dust residue
ES2142566T3 (es) * 1996-10-11 2000-04-16 Scheuchzer Sa Procedimiento de soldadura de al menos un tramo de rail y maquina para la realizacion del procedimiento.
FI129765B (sv) * 2007-03-21 2022-08-15 Oy Kwh Mirka Ab Kompakt elektrisk slipmaskin
DE202010007264U1 (de) 2010-05-26 2010-08-26 Robel Bahnbaumaschinen Gmbh Schleifmaschine zum Schleifen von Schienen eines Gleises
EP2671675A1 (fr) * 2012-06-07 2013-12-11 Molemab France Système de réfroidissement d'un outil d'enlèvement de matière monte sur un dispositif rotatif
CN202945514U (zh) * 2012-12-10 2013-05-22 北京二七轨道交通装备有限责任公司 轨道打磨集尘系统和打磨车
CN102966014B (zh) * 2012-12-10 2014-12-03 北京二七轨道交通装备有限责任公司 轨道打磨集尘系统和打磨车
CN204608531U (zh) * 2014-12-26 2015-09-02 北京二七轨道交通装备有限责任公司 钢轨打磨装置及钢轨铣磨车
CN105178122B (zh) * 2015-10-12 2017-10-10 北京东顺博望石油设备有限公司 一种砂带式轨道打磨设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4178724A (en) * 1978-03-23 1979-12-18 Harsco Corporation Rail grinding system
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4864776A (en) * 1987-08-21 1989-09-12 Winders, Barlow And Morrison Pty. Ltd. Rail grinding apparatus
US4829723A (en) * 1987-10-16 1989-05-16 Loram Maintenance Of Way, Inc. Rail grinding machine
US20070066193A1 (en) * 2005-09-16 2007-03-22 Speno International S.A. Reprofiling device for the rails of railroads that captures waste

Also Published As

Publication number Publication date
WO2018215363A1 (de) 2018-11-29
DE202017103078U1 (de) 2017-06-21
DK3426843T3 (da) 2019-12-16
AU2018274558A1 (en) 2019-12-12
CN110651084B (zh) 2022-04-05
EP3426843A1 (de) 2019-01-16
JP2020521075A (ja) 2020-07-16
CN110651084A (zh) 2020-01-03
EP3426843B1 (de) 2019-09-11
EA201992481A1 (ru) 2020-04-08
PL3426843T3 (pl) 2020-04-30

Similar Documents

Publication Publication Date Title
CN109196745B (zh) 带有分离开关的手持式工具机
US9821433B2 (en) Particle separation assembly for power tool
US20200189062A1 (en) Rail grinding machine displaceable manually on the rails of a track
US20110104996A1 (en) Finishing machine
CN102416618B (zh) 具有抽吸适配器的手动导引的电动工具机
CN112372448B (zh) 一种磨床自适应砂轮装置
CN114908623A (zh) 用于研磨轨道的钢轨的研磨机
CN102947036A (zh) 手持式工具机
CN202545302U (zh) 一种喷雾降温扇
JP4063357B2 (ja) 保護カバーを具備する、手で操縦される作業機械
CN2834780Y (zh) 带特定磨轮安装机构的钻石磨抛机
CN201863125U (zh) 一种高效内冷却的电主轴
CN202556217U (zh) 研磨机
CN204277784U (zh) 一种刀具磨床专用砂轮修整装置
US20040154168A1 (en) Dust and debris shield for powered hand tool
CN212910819U (zh) 一种用于市政园林景观工程的草面自适应叠片式除草机
US20210138599A1 (en) Machine tool
CN219582594U (zh) 一种可调节喷嘴角度的喷抛丸设备
CN206242192U (zh) 一种具有木屑收集装置的木条铣槽机
CN100528478C (zh) 轮胎断面磨抛机
KR101814485B1 (ko) 원심형 송풍기
EP4357074A1 (en) Sprayer for spindle, particularly for a dental milling cutter
CN211880258U (zh) 一种角磨机转子绝缘挡圈辅助换向器散热结构
CN219508350U (zh) 一种道路划线装置
CN214685759U (zh) 一种动柱式数控磨床

Legal Events

Date Code Title Description
AS Assignment

Owner name: ROBEL BAHNBAUMASCHINEN GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KAMML, DIETER LUDWIG;REEL/FRAME:051129/0929

Effective date: 20191015

STPP Information on status: patent application and granting procedure in general

Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION