EP4096982A1 - Anordnung zur erhöhung des kraftschlussbeiwerts bei einem schienenfahrzeug - Google Patents
Anordnung zur erhöhung des kraftschlussbeiwerts bei einem schienenfahrzeugInfo
- Publication number
- EP4096982A1 EP4096982A1 EP21711771.2A EP21711771A EP4096982A1 EP 4096982 A1 EP4096982 A1 EP 4096982A1 EP 21711771 A EP21711771 A EP 21711771A EP 4096982 A1 EP4096982 A1 EP 4096982A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wheel
- cleaning device
- cleaning
- rail
- rail vehicle
- 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
Links
- 238000004140 cleaning Methods 0.000 claims abstract description 47
- 230000003750 conditioning effect Effects 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000004576 sand Substances 0.000 claims description 3
- 238000011161 development Methods 0.000 description 18
- 230000018109 developmental process Effects 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 11
- 239000012530 fluid Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
- B08B1/143—Wipes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
- B08B1/12—Brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
-
- 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
Definitions
- the invention relates to an arrangement for increasing the coefficient of adhesion between a wheel of a rail vehicle and a rail on which the rail vehicle is traveling.
- the coefficient of adhesion is understood to be a ratio between a transferable circumferential force and a normal force.
- circumferential force is a transferable drive force which acts on the circumference of a rail vehicle wheel and drives or brakes it in the longitudinal direction of the rail vehicle.
- the normal force is the force that presses on the rail on which the rail vehicle is traveling via the wheel of the rail vehicle. It is generated by the weight of the rail vehicle.
- the coefficient of adhesion is decisive for a tractive force or braking force of the rail vehicle.
- a measuring unit to determine a transverse offset of a rail on which a rail vehicle is traveling relative to an effective area of a track conditioning unit.
- the track conditioning unit is used to supply auxiliary media (sand, water, Air) on the rails used, so that a coefficient of adhesion between the rail and a wheel of the rail vehicle is increased.
- auxiliary media sand, water, Air
- the object of the present invention is to provide an arrangement with which a further improvement in the tractive force or the braking force of a rail vehicle is achieved.
- the invention relates to an arrangement for increasing the coefficient of adhesion in a rail vehicle.
- the arrangement includes a rail vehicle wheel, a cleaning device and a rail on which the rail vehicle travels.
- the wheel of the rail vehicle is coupled to the cleaning device so that the cleaning device acts on the wheel when required.
- the cleaning device is arranged and designed in such a way that moisture adhering to a wheel running surface is at least reduced before the wheel running surface touches the rail. It is thereby achieved that a coefficient of adhesion in the contact area of the wheel running surface with the rail is increased.
- the cleaning device is arranged and designed in such a way that the moisture adhering to the wheel running surface is removed by drying. In an advantageous development, the cleaning device is arranged and designed in such a way that dirt adhering to the wheel running surface is reduced or removed.
- the cleaning device has at least one compressed air outlet through which compressed air is directed onto the wheel or onto the wheel running surface.
- the outlet is arranged at the level of the wheel axle.
- the cleaning device is designed as a mechanical cleaning system that acts on the wheel running surface.
- the mechanical cleaning system has a cleaning block or a cleaning brush.
- the cleaning block or the cleaning brush is movably mounted so that it can be pressed onto the wheel running surface via a coupling system if required.
- the resulting friction heats the wheel, which causes additional drying of the wheel.
- the coupling system is designed as a pneumatic system.
- the cleaning device is coupled to a track conditioning unit.
- the track conditioning unit applies an auxiliary medium, preferably sand or air, to the rail in order to additionally increase the coefficient of adhesion.
- the compressed air is passed through a heating device before being discharged via the compressed air outlet.
- the heating device is designed to heat the compressed air, so that the heated compressed air discharged via the compressed air outlet additionally dries the wheel running surface or the wheel.
- the heating device is arranged between a compressed air generating device and the compressed air outlet, so that the compressed air reaches the heating device as a compressed air stream.
- the heating device is arranged and designed in such a way that it encloses the flow of compressed air.
- the heating device is designed as a heatable pipe or as a heatable copper pipe through which the compressed air volume flow is passed for heating.
- the heating device is arranged and designed in such a way that the compressed air volume flow flows around the heating device.
- the heating device is designed as a glow wire which is arranged in the compressed air volume flow in order to heat it.
- the heating device is designed as a heat exchanger which transfers the heat of a fluid to the compressed air volume flow.
- the fluid used to supply heat is a transformer oil, which is in a transformer mator cooling circuit of the rail vehicle is used to dissipate heat from the transformer.
- the fluid used for supplying heat is engine cooling water that is used in an engine cooling circuit of the rail vehicle to remove heat from the engine.
- the present invention also causes an increase in tractive force or braking force that occurs immediately if the running circle of the wheel changes when the wheel rolls on the rail.
- the present invention causes an increase in tractive force or braking force that starts immediately when the running circle of the wheel as a whole is not dry or dry enough.
- the present invention causes an increase in tractive force or braking force that starts immediately when there are lubricating fluid residues of a wheel flange lubrication system on the wheel.
- the present invention achieves both an increase in tensile force and an improved braking effect in the rail vehicle.
- An advantageous arrangement of compressed air outlets allows compressed air used for drying or cleaning the wheel to be saved, while at the same time maintaining or increasing the cleaning and drying effects on the wheel.
- the special contour of the wheel with its conical running surface and the flange are used to effectively remove water and dirt from the wheel.
- FIG. 1 shows a first embodiment of the present invention and FIG. 2 shows a second embodiment of the present invention.
- FIG. 1 shows a first embodiment of the present invention based on a chassis FW of a rail vehicle.
- the chassis FW includes a frame 1 to which a wheel set with a wheel 3 is attached.
- the wheel 3 is in contact with a rail 2 in a partial area, the contact circumference BU.
- Two compressed air outlets 4 are directed at the wheel 3, via which compressed air DL reaches a wheel running surface RLF.
- the two compressed air outlets 4 are arranged opposite one another in relation to the wheel diameter or at the level of the wheel axle, so that they act on the wheel running surface RLF from two sides.
- FIG. 2 shows a second embodiment of the present invention based on a chassis FW of a rail vehicle.
- the chassis FW includes a frame 1 to which a wheel set with a wheel 3 is attached.
- the wheel 3 is in contact with a rail 2 in a partial area, the contact circumference BU.
- a mechanical cleaning system 5 is pressed onto a wheel running surface RLF, for example via a pneumatic system 6, in order to dry it from moisture or to clean it.
- the mechanical cleaning system 5 contains a cleaning block or a cleaning brush which act on the wheel 3 for cleaning or drying. The resulting friction heats the wheel 3, which causes additional drying of the wheel 3.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020203183.5A DE102020203183A1 (de) | 2020-03-12 | 2020-03-12 | Anordnung zur Erhöhung des Kraftschlussbeiwerts bei einem Schienenfahrzeug |
PCT/EP2021/055242 WO2021180524A1 (de) | 2020-03-12 | 2021-03-03 | Anordnung zur erhöhung des kraftschlussbeiwerts bei einem schienenfahrzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4096982A1 true EP4096982A1 (de) | 2022-12-07 |
EP4096982B1 EP4096982B1 (de) | 2024-02-28 |
Family
ID=74873702
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21711771.2A Active EP4096982B1 (de) | 2020-03-12 | 2021-03-03 | Anordnung zur erhöhung des kraftschlussbeiwerts bei einem schienenfahrzeug |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP4096982B1 (de) |
CN (1) | CN115397713A (de) |
DE (1) | DE102020203183A1 (de) |
ES (1) | ES2975089T3 (de) |
PL (1) | PL4096982T3 (de) |
WO (1) | WO2021180524A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021214556A1 (de) | 2021-12-16 | 2023-06-22 | Siemens Mobility GmbH | Schienenfahrzeug |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE6924556U (de) | 1969-06-18 | 1969-11-20 | Bergische Stahlindustrie | Einrichtung zur reinigung von bandagen von schienenfahrzeugraedern |
DE7720982U1 (de) | 1977-07-05 | 1978-01-12 | Thyssen Industrie Ag, 4300 Essen | Reinigungsvorrichtung fuer die laufflaeche eines schienenfahrzeugrads |
DE20319041U1 (de) | 2003-12-09 | 2004-04-15 | Dierl, Ludwig, Dipl.-Ing. | Schienenreiniger |
DE102011110051A1 (de) | 2011-08-12 | 2013-02-14 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Pneumatische Schienenreinigungsvorrichtung für ein Schienenfahrzeug |
CN107031668A (zh) * | 2016-11-25 | 2017-08-11 | 青岛思锐科技有限公司 | 机车踏面清扫控制装置 |
EP3781451B1 (de) | 2018-05-17 | 2022-02-23 | Siemens Mobility GmbH | Gleiskonditioniereinheit mit vorrichtung zur schienentrocknung |
EP3774485B1 (de) | 2018-05-17 | 2022-01-26 | Siemens Mobility GmbH | Steuerbare gleiskonditioniereinheit |
CN109664914A (zh) * | 2019-01-25 | 2019-04-23 | 吕振国 | 一种用于盘形制动货运机车恢复粘着力的系统 |
-
2020
- 2020-03-12 DE DE102020203183.5A patent/DE102020203183A1/de not_active Ceased
-
2021
- 2021-03-03 ES ES21711771T patent/ES2975089T3/es active Active
- 2021-03-03 WO PCT/EP2021/055242 patent/WO2021180524A1/de active Search and Examination
- 2021-03-03 PL PL21711771.2T patent/PL4096982T3/pl unknown
- 2021-03-03 EP EP21711771.2A patent/EP4096982B1/de active Active
- 2021-03-03 CN CN202180028063.6A patent/CN115397713A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
PL4096982T3 (pl) | 2024-06-10 |
DE102020203183A1 (de) | 2021-09-16 |
WO2021180524A1 (de) | 2021-09-16 |
CN115397713A (zh) | 2022-11-25 |
EP4096982B1 (de) | 2024-02-28 |
ES2975089T3 (es) | 2024-07-03 |
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