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WO2017121596A1 - Dispositif d'application et procédé d'application de modificateurs de coefficient de friction d'un véhicule ferroviaire - Google Patents

Dispositif d'application et procédé d'application de modificateurs de coefficient de friction d'un véhicule ferroviaire Download PDF

Info

Publication number
WO2017121596A1
WO2017121596A1 PCT/EP2016/082171 EP2016082171W WO2017121596A1 WO 2017121596 A1 WO2017121596 A1 WO 2017121596A1 EP 2016082171 W EP2016082171 W EP 2016082171W WO 2017121596 A1 WO2017121596 A1 WO 2017121596A1
Authority
WO
WIPO (PCT)
Prior art keywords
rail
reibwertmodifikatoren
modifiers
friction
projectiles
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.)
Ceased
Application number
PCT/EP2016/082171
Other languages
German (de)
English (en)
Inventor
Marc-Oliver Herden
Christoph TOMBERGER
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.)
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Schienenfahrzeuge 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 Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Publication of WO2017121596A1 publication Critical patent/WO2017121596A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C15/00—Maintaining or augmenting the starting or braking power by auxiliary devices and measures; Preventing wheel slippage; Controlling distribution of tractive effort between driving wheels
    • B61C15/08—Preventing wheel slippage
    • B61C15/10—Preventing wheel slippage by depositing sand or like friction increasing materials
    • B61C15/107—Preventing wheel slippage by depositing sand or like friction increasing materials with electrically or electromagnetically controlled sanding equipment

Definitions

  • the invention relates to a dispensing device and a method for dispensing Reibwertmodifikatoren for a rail vehicle.
  • the effect of a brake or a drive device depends i.a. from the maximum transferable adhesion between the wheels and the rail, since the braking or driving force is transmitted via the wheels on the rail.
  • a parameter which is referred to as the maximum force value determines the amount of braking force or driving force that can be transmitted to the rail. If more force is exerted on a wheel to brake or accelerate the rail vehicle than can be accommodated in accordance with prevailing maximum traction over the wheel-rail contact, this can lead to sliding, spinning or locking of the wheel and an extended braking distance.
  • the maximum adhesion between the wheel and the rail depends heavily on the friction conditions between the wheel and the rail. Dirt, liquid and solid intermediate layers such. B.
  • Water or damp leaves can reduce the maximum available traction.
  • rail vehicles are equipped, for example, with particle sprinkling systems or sanding systems, via which a spreading material, such as sand, can be applied to a rail.
  • the spreading material can improve the maximum force between the wheel and the rail.
  • particle scattering systems are disclosed, for example, in DE 10 201 1 1 13 085 B4 and DE 10 2013 100 250 A1.
  • sand is discharged from a reservoir on the car body and sprayed into the gap between the wheel and rail to increase the maximum available.
  • liquid substances are usually used for reducing the frictional connection.
  • alcohol is usually added to prevent freezing of the substance in the reservoir, which, however, brings disadvantages in terms of environmental compatibility.
  • spraying of the liquid substance causes problems in precise aiming; The substance may enter areas of the contact system that should not be wetted by it.
  • the dispensing device for dispensing friction coefficient modifiers for a rail vehicle has a reservoir for accommodating Reibwertmodifikatoren and a transport device for transporting Reibwertmodifikatoren from the reservoir on a rail and / or a wheel of the rail vehicle and is inventively characterized in that the Reibwertmodifikatoren in the reservoir in Form of projectiles are added and the projectiles are designed such that the Reibwertmodifikatoren be transported by the transport device in the form of projectiles and on the rail and / or the wheel are releasable.
  • the method for applying Reibwertmodifikatoren on a rail and / or a wheel of a rail vehicle erfindungsgenzeß is characterized in that the Reibwertmodifikatoren in a reservoir in the form of projectiles auf- be taken by a transport device in the form of projectiles and released on the rail and / or the wheel.
  • the Reibwertmodifikatoren in the form of projectiles in the reservoir and to be transported by a transport device to the rail and / or the wheel of the rail vehicle.
  • Frictional modifiers in projectile form can also be prevented in conjunction with moisture freezing or clumping of Reibwertmodifikatoren.
  • the coefficient of friction modifiers in projectile form can be applied to the wheel and / or the rail with a high degree of accuracy and safety.
  • the dispenser can be used to dispense different coefficient of friction modifiers without having to adapt or modify the dispenser.
  • the Reibwertmodifikatoren be spent on the rail and / or the wheel of the rail vehicle, preferably in a gap between the wheel and rail.
  • the Reibwertmodifikatoren are particularly suitable to improve a frictional connection between rail and wheel, for example by increasing the maximum adhesion between the wheel and rail.
  • Reibwertmodifikatoren may preferably solid substances (eg., Sand, granules, particles, etc.), pasty or gelatinous
  • the term "projectile” is intended to denote any type of body which, when used as intended (here in particular provision in the storage container and conveyed by the transport device), should be in relation to Volume is stable.
  • the amount of Reibwertmodifikatoren existing in the projectile remains so substantially unchanged, that is, neither smaller nor larger.
  • the projectiles, when used as intended should neither dissolve nor form larger units with other projectiles.
  • Shape stability is not required, but may also be present.
  • the projectiles with the Reibwertmodifikatoren are preferably designed substantially spherical or spherical.
  • the transport device preferably has a metering device for metering the amount of friction modifiers to be applied to the rail and / or the wheel.
  • the smallest possible dosing quantity or dosing unit of the coefficient of friction modifiers is given by the coefficient of friction modifier of a projectile.
  • the transport device preferably has a mechanical and / or pneumatic conveying device for transporting the coefficient of friction modifiers.
  • a mechanical and / or pneumatic conveying device for transporting the coefficient of friction modifiers.
  • compressed air can be used, which preferably can be removed from the brake circuit, carried as high-pressure air or generated locally.
  • Reibwertmodifikatoren can be achieved by the use of Reibwertmodifikatoren in projectile form a much lower air consumption.
  • a plurality of reservoirs may be provided for receiving Reibwertmodifikatoren.
  • the various reservoirs preferably accommodate projectiles having different types and / or sets of coefficient of friction modifiers.
  • different Reibwertmodifikatoren can be applied to the rail and / or the wheel as needed.
  • a projectile may have an amount of friction coefficient modifiers surrounded by an envelope.
  • the envelope is preferably designed such that it impacts on the rail or the wheel upon impact bursts and releases the Reibwertmodifikatoren contained therein.
  • the sheath is preferably configured in the form of a skin, a capsule, a shell or the like.
  • the wrapper may preferably be water soluble and / or compostable to avoid environmental impact.
  • the envelope may be formed in one or more parts.
  • a projectile in another advantageous embodiment of the invention, can be formed by a predefined unit of quantity of coefficient of friction modifiers.
  • this predefined unit of quantity is realized by a gel packet, a pressed material or the like.
  • the predefined unit of measure may optionally be coated, the coating preferably being able to prevent absorption of moisture and adhesion between units of measure.
  • the dispensing device may further comprise a coefficient of friction sensor for detecting friction coefficient data between wheel and rail and a control device for controlling the transport device in dependence on the detected friction coefficient data.
  • the dispensing device may further comprise a conveyor sensor for detecting conveyor data (eg delivery rate, delivery rate, etc.) of the coefficient of friction modifiers and a control device for controlling the transport device as a function of the acquired conveyor data.
  • the invention also relates to a projectile for providing Reibwertmodifikatoren for a rail vehicle, which is designed in the manner described above according to the invention.
  • the invention also relates to a rail vehicle having an above
  • FIGURE shows schematically the structure of a dispensing device for dispensing friction coefficient for a rail vehicle according to an embodiment of the present invention.
  • Fig. 1 shows schematically a dispensing device 10 for dispensing Reibwertmodifikatoren, which is mounted on a rail vehicle not shown in detail.
  • the rail vehicle has a wheel 12 which runs on a rail 14.
  • the dispensing device 10 has three reservoirs 16, 22, 28 in this embodiment.
  • the first reservoir 16 contains first projectiles 18 with first coefficient of friction modifiers 20, second projectiles 24 with second coefficient of friction modifiers 26 are contained in the second reservoir 22, and third projectiles 30 with third coefficient of friction modifiers 32 are contained in the third reservoir.
  • the first, second and third coefficients of friction modifiers 20, 26, 32 are preferably different from one another with regard to friction properties to be achieved between wheel 12 and rail 14.
  • the dispensing device 10 may also have only one reservoir, two reservoir or more than three reservoir.
  • the Reibwertmodifikatoren 20, 26, 32 are provided in the storage containers 16, 22, 28 in the form of projectiles 18, 24, 30, in particular substantially spherical projectiles. Due to the projectile shape, the coefficients of friction modifiers 20, 26, 32 can be simply portioned so that precise metering is made possible; combinations of solid and liquid components can also be used without being able to segregate in the storage containers, also in combination with moisture Freezing or clumping of Reibwert- modifikatoren 20, 26, 32 are prevented, and the Reibwertmodifikatoren 20, 26, 32 are applied to the wheel 12 and / or the rail 14 with a high accuracy and safety.
  • the Reibwertmodifikatoren 20, 26, 32 are chosen such that they can improve the adhesion between rail 14 and wheel 12.
  • Suitable friction coefficient modifiers 20, 26, 32 are solid substances (for example sand, granules, particles, etc.), pasty or gel-like substances, liquid substances and combinations of such substances. In principle, all substances and substance combinations known to the person skilled in the art for the stated purpose can be used.
  • the projectiles 18, 24, 30 each have an amount of Reibwertmodifikatoren 20, 26, 32 surrounded by an enclosure.
  • the envelope is designed such that it bursts upon impact with the rail 14 and the wheel 12 and the Reibwertmodifikatoren contained therein 20, 26, 32 releases.
  • the wrapper is made of gelatin, for example.
  • the projectiles 18, 24, 30 can each be formed by a predefined unit of quantity of coefficient of friction modifiers 20, 26, 32, for example in the form of a gel packet, a pressed material or the like, wherein this predefined unit of quantity can additionally be coated.
  • a transport device 34-42 For transporting and deploying the projectiles 18, 24, 30 from the storage containers 16, 22, 28 on the rail 14 and / or the wheel 12, a transport device 34-42 is provided.
  • This transport device 34-42 has in this embodiment conveyors 34, 36, 38 for conveying the projectiles 18, 24, 30 from the reservoirs 16, 22, 28, a metering device 40 for metering the projectile quantities and preferably also for mixing the projectiles from the various storage containers 16, 22, 28, and a conveyor pipe 42 for conveying the projectiles 18, 24, 30 of the metering device 40 on the rail 14 and / or the wheel 12.
  • the delivery pipe 42 may be, for example, a solid pipe, a downpipe or a hose.
  • the transport device 34-42 may, for example, mechanical and / or pneumatic conveyors 34, 36, 38 have.
  • compressed air can be used, which can be taken for example from the brake circuit, carried as high-pressure air or generated locally.
  • the transport device 34-42 for transporting the projectiles 18, 24, 30 with the Reibwertmodifikatoren 20, 26, 32 therein may basically be constructed as a conventional sanding or particle scattering system for rail vehicles.
  • the projectiles 18, 24, 30 in the conveyors 34, 36, 38 by gravity, a worm drive or a rotation accelerator in a
  • Be promoted transport system to be transported there, for example by means of gas pressure, spring pressure, electric drive, etc.
  • the dispensing device 10 also has a conveyor sensor 44 for detecting conveying data such as a delivery rate, a delivery rate, etc. of the projectiles 18, 24, 30 through the conveyor tube 42 onto the rail 14 and / or the wheel 12.
  • a coefficient of friction sensor 50 for detecting current coefficient of friction data of the rail 14 and possibly also the wheel 12 is also provided.
  • the transport 34-42 i. in particular their conveying devices 34, 36, 38 and their metering device 40 are controlled by a control device 46.
  • the control device 46 can control the transport device 34-42 in particular in such a way, from which reservoir 16, 22, 28 or from which combination of storage containers and in what proportion projectiles 18, 24, 30 are to be deployed.
  • the control device 46 is usually provided with a brake control device 48 of the
  • the control device 46 is provided, for example, traction data and speed data.
  • the adhesion data can be provided for example by a Gleitschutzrechner the brake control device 48.
  • the force end data are provided by a force sensor device which is capable of detecting and / or monitoring a frictional connection, for example between the wheel 12 and the rail 14.
  • the speed data represents a vehicle speed of the rail vehicle.
  • the control device 46 preferably controls the transport device 34-42 as a function of the delivery data detected by the delivery sensor 44 and the friction value data acquired by the friction value sensor 50.
  • the control of the transport device 34-42 can for example take place in that a suitable manipulated variable of the conveyors 34, 36, 38 and / or the metering device 40 is set, such as a pressure, a stroke or a pulse width of a piston, a speed of a screw or a Cell wheel one of the conveying devices or the metering device to achieve a desired value of the friction coefficient modifier amount to be applied.
  • a suitable manipulated variable of the conveyors 34, 36, 38 and / or the metering device 40 is set, such as a pressure, a stroke or a pulse width of a piston, a speed of a screw or a Cell wheel one of the conveying devices or the metering device to achieve a desired value of the friction coefficient modifier amount to be applied.
  • control device 46 may further be provided, for example, that the control device 46 the
  • the control device 46 can, for example, when the release data of a Gleitschutz worn emerges from the adhesion data, the dispensing device 10 for applying Reibwertmodifikatoren 20, 26, 32 control the rail 14. It can be provided that the control device 46 increases the amount of projectile until the anti-slip device signals sufficient adhesion, for example, when the anti-slip device is no longer triggered. It is also conceivable that the control device 46 is designed to determine from the adhesion data a desired adhesion and / or a desired friction and the
  • Dispensing device 10 to control such that adjust the desired adhesion and / or the desired friction.
  • the dispensing device 10 may have fill level sensors, not shown, which determine a Giil congestionllstand in each of the reservoir 16, 22, 28. If the fill level in one or more storage containers 16, 22, 28 is below a predetermined minimum value, the control device 46 can generate a corresponding signal. The control device 46 may also perform the control of the transport device 34-42 based on the level data, for example, if it is present in a reservoir, a small amount of charge, increases the delivery of projectiles from other storage containers. It may further be provided that, based on a corresponding signal from the control device 46, a control of the rail vehicle takes place in such a way that a lower maximum speed of the rail vehicle is set at a low level in the storage containers 16, 22, 28. LIST OF REFERENCE NUMBERS

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Regulating Braking Force (AREA)

Abstract

L'invention concerne un dispositif d'application (10), destiné à appliquer des modificateurs de coefficient de friction (20, 26, 32) d'un véhicule ferroviaire, qui comprend au moins un réservoir (16, 22, 28) destiné à recevoir des modificateurs de coefficient de friction (20, 26, 32) et un dispositif de transport (34-42) destiné à transporter les modificateurs de coefficient de friction (20, 26, 32) du réservoir (16, 22, 28) sur un rail (14) et/ou une roue (12) du véhicule ferroviaire. Les modificateurs de coefficient de frottement (20, 26, 32) sont placés dans le réservoir (16, 22, 28) sous la forme de projectiles (18, 24, 30). Les projectiles (18, 24, 30) sont conçus de telle sorte que les modificateurs de coefficient de friction (20, 26, 32) peuvent être transportés par le dispositif de transport (34-42) sous la forme de projectiles (18, 24, 30) puis peuvent être libérés sur le rail (14) et/ou la roue (12).
PCT/EP2016/082171 2016-01-11 2016-12-21 Dispositif d'application et procédé d'application de modificateurs de coefficient de friction d'un véhicule ferroviaire Ceased WO2017121596A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016100291.7A DE102016100291B3 (de) 2016-01-11 2016-01-11 Ausbringeinrichtung und Verfahren zum Ausbringen von Reibwertmodifikatoren für ein Schienenfahrzeug
DE102016100291.7 2016-01-11

Publications (1)

Publication Number Publication Date
WO2017121596A1 true WO2017121596A1 (fr) 2017-07-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/082171 Ceased WO2017121596A1 (fr) 2016-01-11 2016-12-21 Dispositif d'application et procédé d'application de modificateurs de coefficient de friction d'un véhicule ferroviaire

Country Status (2)

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DE (1) DE102016100291B3 (fr)
WO (1) WO2017121596A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT16652U1 (de) * 2018-10-03 2020-04-15 Mbm Holding Gmbh Sandungsvorrichtung sowie Sandaustragungseinrichtung für ein Schienenfahrzeug

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010084085A1 (fr) * 2009-01-22 2010-07-29 Nowe Gmbh Système d'épandage de sable
WO2012021225A2 (fr) * 2010-08-09 2012-02-16 General Electric Company Système et procédé d'effort de traction
WO2013034740A1 (fr) * 2011-09-09 2013-03-14 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Installation d'épandage de particules pour un véhicule ferroviaire
WO2014108316A1 (fr) * 2013-01-11 2014-07-17 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Procédé et dispositif permettant d'analyser un matériau d'épandage et de commander l'application d'un matériau d'épandage sur un rail pour un véhicule ferroviaire
WO2015044246A1 (fr) * 2013-09-27 2015-04-02 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Dispositif et procédé d'amélioration d'un coefficient d'adhérence entre une roue et un rail de véhicule ferroviaire
DE102013016881A1 (de) * 2013-10-11 2015-04-16 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Ausbringeinrichtung für Reibwertmodifikatoren für ein Schienenfahrzeug

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2374993C (fr) * 1999-05-19 2008-07-15 Aea Technology Plc Renforcement de l'adherence de la roue sur le rail
US7290807B2 (en) * 2002-06-26 2007-11-06 General Electric Company Method and system of limiting the application of sand to a railroad rail
AT503513B8 (de) * 2004-02-11 2009-01-15 Faiveley Transport Einrichtung zur überwachung des flusses von streugut in fahrzeugen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010084085A1 (fr) * 2009-01-22 2010-07-29 Nowe Gmbh Système d'épandage de sable
WO2012021225A2 (fr) * 2010-08-09 2012-02-16 General Electric Company Système et procédé d'effort de traction
WO2013034740A1 (fr) * 2011-09-09 2013-03-14 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Installation d'épandage de particules pour un véhicule ferroviaire
WO2014108316A1 (fr) * 2013-01-11 2014-07-17 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Procédé et dispositif permettant d'analyser un matériau d'épandage et de commander l'application d'un matériau d'épandage sur un rail pour un véhicule ferroviaire
WO2015044246A1 (fr) * 2013-09-27 2015-04-02 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Dispositif et procédé d'amélioration d'un coefficient d'adhérence entre une roue et un rail de véhicule ferroviaire
DE102013016881A1 (de) * 2013-10-11 2015-04-16 Knorr-Bremse Systeme für Schienenfahrzeuge GmbH Ausbringeinrichtung für Reibwertmodifikatoren für ein Schienenfahrzeug

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