WO2016076307A1 - 鉄道車両用車輪のフランジ摩耗測定方法 - Google Patents
鉄道車両用車輪のフランジ摩耗測定方法 Download PDFInfo
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- WO2016076307A1 WO2016076307A1 PCT/JP2015/081584 JP2015081584W WO2016076307A1 WO 2016076307 A1 WO2016076307 A1 WO 2016076307A1 JP 2015081584 W JP2015081584 W JP 2015081584W WO 2016076307 A1 WO2016076307 A1 WO 2016076307A1
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- wheel
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- flange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/12—Measuring or surveying wheel-rims
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/50—Trackside diagnosis or maintenance, e.g. software upgrades
- B61L27/57—Trackside diagnosis or maintenance, e.g. software upgrades for vehicles or vehicle trains, e.g. trackside supervision of train conditions
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/08—Railway vehicles
- G01M17/10—Suspensions, axles or wheels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Definitions
- the present invention relates to a method for directly measuring the amount of flange wear of a wheel of a railway vehicle online during traveling.
- the wheel of the railway vehicle will come into contact with the rail when traveling.
- the wheel worn by contact with the rail has a great influence on the motion performance of the railway vehicle. Therefore, in order to travel the railway vehicle safely, it is very important to manage the amount of wear of the wheels.
- FIG. 10 is a diagram schematically showing the force that the wheel 1 receives from the rail 2 during traveling in a curve section composed of a relaxation curve and a circular curve.
- the rail 2 on the left side of FIG. 10 indicates the rail 2 on the outer peripheral side of the curved section
- the rail 2 on the right side of the paper indicates the rail 2 on the inner peripheral side of the curved section.
- the outer circumference side of the curved section is referred to as the outer gauge side
- the inner circumference side of the curved section is referred to as the inner gauge side.
- the wheel load P that the wheel 1 exerts perpendicularly to the rail surface and the lateral pressure Q that the wheel 1 exerts on the side surface of the rail 2 are important management indexes.
- N represents a normal force
- fy represents a lateral creep force.
- the upright wear generated in the flange 1f of the wheel 1 is quickly found and the shape of the wheel 1 is optimized by cutting with a rotating tool (hereinafter referred to as rolling). This is one of the solutions.
- the upright wear refers to wear in which the throat 1th of the wheel 1 wears and the flange 1f becomes almost upright (the hatched portion in FIG. 11).
- Patent Document 1 the shape of the tread of the left and right wheels and the cross-sectional shape of the rail are measured by a shape measuring device, and these shape data are converted into discrete data at predetermined intervals in the wheel thickness direction.
- An apparatus for evaluating the contact characteristics of a rail is disclosed.
- Patent Document 2 discloses an apparatus and method for continuously measuring a change in the shape of a tread surface of a wheel over a circumferential direction.
- Patent Document 3 discloses a device that quantitatively estimates a change in flange angle due to wear in relation to a travel distance, based on the flange angle at the time of design.
- Patent Document 4 discloses a method and apparatus for measuring the shape of a wheel using a plurality of laser distance meters, and Patent Document 5 using a plurality of cameras and a plurality of laser distance meters. Yes.
- the distance to the wheel is measured using distance sensors installed on the outside and inside of the rail, and the wheel diameter and flange are determined from these measurement results and the distance data related to the installation of the both distance sensors.
- An apparatus for calculating the shape of a wheel such as thickness and flange height and a method for installing the apparatus are disclosed.
- Patent Documents 1 to 3 are not technologies that measure while the vehicle is running, but technologies that are premised on offline measurement. Therefore, it is difficult to ensure safety during vehicle travel in a timely manner.
- Patent Documents 4 to 7 use a plurality of cameras and a plurality of laser distance meters. Accordingly, the specification becomes complicated and man-hours are required for maintenance. In addition, since measurement values need to be processed separately, it is difficult to ensure safety during vehicle travel in a timely manner.
- Patent Documents 1 to 3 are techniques based on the premise that measurement is performed off-line. Is difficult.
- the techniques disclosed in Patent Documents 4 to 7 use a plurality of cameras and a plurality of laser distance meters, the specifications become complicated and a man-hour is required for maintenance.
- it is necessary to process measured values separately it is difficult to ensure safety during vehicle travel in a timely manner.
- the method of measuring the flange wear of the railway vehicle wheel of the present invention Install a laser distance meter on the outer track side of the circular curve section on the railway track, When the vehicle travels in the circular curve section, the laser distance meter measures the distance to the front rim surface of the wheel on the outer gauge side of the front shaft of the carriage that constitutes the vehicle, The most important feature is to obtain the flange wear amount by comparing the measured distance with the previously measured distance.
- the distance to the front rim surface of the wheel on the outer gauge side of the front shaft of the carriage measured with a laser rangefinder installed on the outer gauge side of the circular curved section is conventionally measured.
- the flange wear amount can be obtained only by comparing with the above distance.
- laser distance meters are installed at four locations where the curvature of the curved section is reversed, and the front rim surface of the wheel on the outer gauge side of the front shaft of the two-axis carriage that is traveling along the curved section with these laser distance meters.
- the distance up to this point is measured by the method of the present invention, it is possible to measure the flange wear amount of all the wheels of the two-shaft carriage.
- the flange wear amount of the wheel of the railway vehicle can be directly measured online while traveling in the curved section, and the flange wear amount of the wheel can be managed.
- FIG. 6 is a view similar to FIG.
- FIG. 5A when the wheel shaft (hereinafter referred to as the rear shaft) in the rearward direction of the carriage comes to a position facing the laser distance meter.
- FIG. 5 is a view similar to FIG. 4 when a wheel mounted on a railway vehicle is worn. It is a figure explaining an example of the installation position of the laser range finder used when implementing this invention method, (a) shows the case of an up line, (b) shows the case of a down line. It is a figure explaining the wheel which measures flange abrasion with the laser distance meter installed in the position shown in Drawing 6 (a). It is a figure explaining the wheel which measures flange abrasion with the laser distance meter installed in the position shown in Drawing 6 (b).
- (A) is the figure which showed the result of having measured the distance to the front rim surface of a wheel with the laser rangefinder about the vehicle equipped with the wheel immediately after rolling, (b) about the vehicle equipped with the wheel which 1 mm of flanges were worn It is the figure which showed the result of having measured the distance to the front rim surface of a wheel with a laser distance meter. It is a figure explaining the force which a wheel receives from a rail when a railroad vehicle passes through a curve section, and a paper surface left side shows an outer track side and a paper surface right side shows an inner track side. It is a figure explaining the upright wear which generate
- the present invention is installed on the outer track side of a circular curve section for the purpose of directly measuring on-line the flange wear amount of the wheel of a railway vehicle while traveling in a curved section to ensure safety during traveling. This was achieved by comparing the distance to the front rim surface of the wheel measured with a laser rangefinder.
- FIG. 1 is a diagram for explaining the names of main parts of a railway vehicle wheel.
- the wheel 1 includes a boss portion 1h into which an axle is inserted, a rim portion 1r in contact with the rail 2, a boss portion 1h and a rim portion 1r. It is comprised from three parts of the board part 1w to connect.
- a tread surface 1t in contact with the rail 2 and a flange 1f continuous with the tread surface 1t via a throat 1th are formed.
- the side surface of the rim portion 1r on the side where the flange 1f is formed is referred to as a back rim surface 1rb, and the side surface opposite to the back rim surface 1rb is referred to as a front rim surface 1rf.
- the throat 1th of the wheel 1 on the outer gauge side of the front shaft Sf of the carriage B is pressed against the rail 2 as described above. Therefore, as the running time of the vehicle becomes longer, the amount of upright wear of the flange 1f of the wheel 1 increases, and the distance between the flange outer surfaces of both wheels 1 constituting the wheel shaft (see FIG. 2) becomes shorter.
- the distance between the flange outer surfaces of both wheels 1 constituting the wheel shaft is referred to as “flange outer surface distance”.
- the laser rangefinder 3 is installed outside the rail 2o on the outer track side in the circular curve section, and the front rim of the wheel 1sfo on the outer track side of the front shaft Sf running from the installation position.
- the wear amount of the flange 1f of the wheel 1 can be known.
- the front rim of the wheel 1sfo on the outer gauge side of the front axis Sf is measured by the laser distance meter 3.
- the distance L1 to the surface 1rf is measured (see FIG. 4A).
- the displacement in the vehicle width direction of the front shaft Sf is reset to the zero point, and the measurement by the laser rangefinder 3 when the vehicle equipped with the wheel 1sfo with the worn flange 1f travels in a curved section. Guarantees accuracy.
- the distance L2 to the front rim surface 1rf of the wheel 1sfo of the vehicle is measured by the laser distance meter 3 (FIG. 5 (a)). )reference).
- the rail on the inner track side is denoted as 2i.
- a wheel on the inner rail side of the front shaft Sf is denoted by 1 sfi
- a wheel on the outer rail side of the rear shaft Sr is denoted by 1 sro
- a wheel on the inner rail side of the rear shaft Sr is denoted by 1 sri.
- the wear amount of the flange 1f of the wheel 1sfo can be obtained by subtracting the measured distance L2 from the distance L1.
- the wear amount of the flange of the wheel is a change amount of (flange outer surface distance ⁇ wheel inner surface distance) / 2 with respect to a new wheel or a wheel immediately after rolling (see FIG. 2). As wear progresses, the amount of change in (flange outer surface distance ⁇ wheel inner surface distance) / 2 decreases.
- wheel inner surface distance means the distance between the wheel inner surfaces of both the wheels 1 which comprise a wheel shaft.
- the amount of wear time Evaluation can be performed.
- the respective circular curve sections of the up line and the down line may be installed at two locations where the curvature of the rail 2 is reversed (see FIG. 6).
- the wheels 12 and 16 on the outer gauge side of the front shaft Sf of the biaxial carriage B1 located on the front side and the biaxial carriage B2 located on the rear side are measured by the laser distance meter 3a.
- the amount of wear of the flange 1f can be measured.
- the laser distance meter 3b measures the wear amount of the flanges 1f of the wheels 11 and 15 on the outer track side of the front shaft Sf of the biaxial cart B1 located on the front side and the biaxial cart B2 located on the rear side. Can do.
- the wheels 18 and 14 on the outer gauge side of the front shaft Sf of the biaxial cart B2 located on the front side and the biaxial cart B1 located on the rear side are measured by the laser distance meter 3c.
- the amount of wear of the flange 1f can be measured.
- the wear amount of the flanges 1f of the wheels 17 and 13 on the outer track side of the front shaft Sf of the biaxial cart B2 located on the front side and the biaxial cart B1 located on the rear side is measured. Can do.
- the inventors have determined the distance to the front rim surface of the wheel mounted on the vehicle on which the test track having a circular curve radius of 120 m is run at a speed of 10 km / h as the outer track of the test track in the circular curve section.
- the results of measurement with a laser distance meter installed on the side will be described below.
- FIG. 9A is a diagram showing the result of measuring the distance to the front rim surface of each wheel on the outer gauge side when the vehicle is equipped with wheels immediately after rolling
- FIG. 9B is the amount of flange wear on the vehicle. It is the same figure as Fig.9 (a) at the time of equip
- the measured distance to the front rim surface is the case of a wheel with a flange wear amount of 1 mm compared to the case of the wheel immediately after rolling (see FIG. 9A) ( 9 (b)) was measured 1 mm smaller, and the effect of the present invention could be confirmed.
- the distance to the front rim surface 1rf of the wheel 1sfo on the outer rail side of the front shaft Sf is measured by the laser distance meter 3 installed outside the rail 2o on the outer rail side in the circular curve section.
- a laser distance meter 3 may be installed inside the outer rail side rail 2o to measure the distance to the back rim surface 1rb.
- the laser distance meter 3 does not need to be provided at four places as shown in FIG. 6, and may be provided at one place.
Abstract
Description
例えば特許文献1では、形状測定装置によって左右それぞれの車輪の踏面形状とレールの断面形状を計測し、これらの形状データを車輪の厚さ方向に所定間隔毎の離散データに変換して、車輪とレールの接触特性の評価を行う装置が開示されている。
鉄道軌道における円曲線区間の外軌側にレーザー距離計を設置し、
車両が前記円曲線区間を走行した時に、前記レーザー距離計で当該車両を構成する台車の前軸における外軌側の車輪の表リム面までの距離を測定し、
この測定した前記距離を従前に測定した前記距離と比較することでフランジ摩耗量を得ることを最も主要な特徴としている。
以下、未使用の車輪のことを「新製車輪」という。また、前記転削した直後の車輪のことを「転削直後車輪」という。
1sfo 前軸の外軌側の車輪
1f フランジ
1rf 表リム面
2 レール
3 レーザー距離計
B 台車
Sf 前軸
Claims (3)
- 鉄道軌道における円曲線区間の外軌側にレーザー距離計を設置し、
車両が前記円曲線区間を走行した時に、前記レーザー距離計で当該車両を構成する台車の進行方向前方の輪軸における外軌側の車輪の表リム面までの距離を測定し、
この測定した前記距離を従前に測定した前記距離と比較することでフランジ摩耗量を得ることを特徴とする鉄道車両用車輪のフランジ摩耗測定方法。 - 鉄道軌道における円曲線区間の外軌側にレーザー距離計を設置し、
未使用の車輪又は正規の形状となるように転削した直後の車輪を装備した車両が前記円曲線区間を走行した時に、前記レーザー距離計で当該車両を構成する台車の進行方向前方の輪軸における外軌側の車輪の表リム面までの距離を予め測定しておき、
車両が前記円曲線区間を走行した時に、前記レーザー距離計で当該車両を構成する台車の進行方向前方の輪軸における外軌側の車輪の表リム面までの距離を測定して、前記未使用の車輪又は前記転削した直後の車輪の表リム面までの測定距離から減算することで、未使用の車輪又は転削した直後の車輪からのフランジ摩耗量を得ることを特徴とする鉄道車両用車輪のフランジ摩耗測定方法。 - 前記レーザー距離計を、前記円曲線区間の曲率が反転している4カ所に設置して、これらレーザー距離計で前記円曲線区間を走行中の2軸台車の進行方向前方の輪軸における外軌側の車輪の表リム面までの距離を測定することを特徴とする請求の範囲第1項又は第2項に記載の鉄道車両用車輪のフランジ摩耗測定方法。
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CN201580059954.2A CN107076645B (zh) | 2014-11-11 | 2015-11-10 | 铁道车辆用车轮的轮缘磨损测定方法 |
US15/525,080 US10352831B2 (en) | 2014-11-11 | 2015-11-10 | Method for measuring wear of railroad vehicle wheel flange |
EP15858514.1A EP3220123B1 (en) | 2014-11-11 | 2015-11-10 | Method for measuring wear of rail-vehicle-wheel flange |
AU2015347772A AU2015347772A1 (en) | 2014-11-11 | 2015-11-10 | Method for measuring wear of rail-vehicle-wheel flange |
BR112017007740A BR112017007740A2 (pt) | 2014-11-11 | 2015-11-10 | método para medição de desgaste de flange de roda de veículo ferroviário |
JP2016559058A JP6610557B2 (ja) | 2014-11-11 | 2015-11-10 | 鉄道車両用車輪のフランジ摩耗測定方法 |
RU2017116493A RU2666043C1 (ru) | 2014-11-11 | 2015-11-10 | Способ измерения износа реборды железнодорожных колес |
CA2966726A CA2966726C (en) | 2014-11-11 | 2015-11-10 | Method for measuring wear of railroad vehicle wheel flange |
ES15858514T ES2804504T3 (es) | 2014-11-11 | 2015-11-10 | Método para medir el desgaste de las pestañas de rueda de vehículos ferroviarios |
AU2018286590A AU2018286590A1 (en) | 2014-11-11 | 2018-12-27 | Method for measuring wear of railroad vehicle wheel flange |
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EP (1) | EP3220123B1 (ja) |
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AU (2) | AU2015347772A1 (ja) |
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2015
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- 2015-11-10 ES ES15858514T patent/ES2804504T3/es active Active
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- 2015-11-10 CN CN201580059954.2A patent/CN107076645B/zh active Active
- 2015-11-10 EP EP15858514.1A patent/EP3220123B1/en active Active
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JP7328528B2 (ja) | 2019-09-13 | 2023-08-17 | 富士通株式会社 | 車輪径予測プログラム、車輪径予測方法及び車輪径予測システム |
JP7430622B2 (ja) | 2020-11-04 | 2024-02-13 | 川崎車両株式会社 | 鉄道車両の車輪フランジの摩耗診断システムおよび摩耗診断方法 |
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BR112017007740A2 (pt) | 2017-12-26 |
CA2966726A1 (en) | 2016-05-19 |
EP3220123A4 (en) | 2018-07-11 |
AU2015347772A1 (en) | 2017-06-22 |
CN107076645B (zh) | 2019-11-12 |
US20170336293A1 (en) | 2017-11-23 |
EP3220123A1 (en) | 2017-09-20 |
EP3220123B1 (en) | 2020-05-06 |
AU2018286590A1 (en) | 2019-01-24 |
CA2966726C (en) | 2020-06-16 |
RU2666043C1 (ru) | 2018-09-05 |
US10352831B2 (en) | 2019-07-16 |
ES2804504T3 (es) | 2021-02-08 |
JPWO2016076307A1 (ja) | 2017-06-15 |
CN107076645A (zh) | 2017-08-18 |
JP6610557B2 (ja) | 2019-11-27 |
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