EP3419878A2 - Method for monitoring the condition of wheel sets and rail vehicle - Google Patents
Method for monitoring the condition of wheel sets and rail vehicleInfo
- Publication number
- EP3419878A2 EP3419878A2 EP17702001.3A EP17702001A EP3419878A2 EP 3419878 A2 EP3419878 A2 EP 3419878A2 EP 17702001 A EP17702001 A EP 17702001A EP 3419878 A2 EP3419878 A2 EP 3419878A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- radentlastungssensor
- rail vehicle
- wheel
- suspension
- drive
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
- B61D15/02—Breakdown cranes
Definitions
- the invention relates to a method for condition monitoring of
- Wheel sets of a rail vehicle and a rail vehicle are provided.
- Vehicles is detected by measurement (GB 2 061 849). About the travel of this value is fed to an intelligent controller, in which it is decided whether the vehicle is on the way safe derailment or whether a lock of the drive should take place. There is the determination of the suspension travel of the vehicle in operation. From the roll-in and rebound of the vehicle due to the overturning moment, the momentary distortion in the track and the actual elevation can be recalculated online in real time on the state of the derailment during the working trip. Thus, a very high level of security requiring special effort is necessary for this evaluation or control.
- the object of the present invention is now to provide a method and a rail vehicle of the type mentioned, with which an economically improved use is possible.
- Such a method allows on the one hand a high derailment safety and on the other hand an improved utilization of the tilt torque generating equipment.
- the distance or the switching point of the Radentlastungssensors is set geometrically such that when reaching a limit value of the derailment security defining switching point or the switching point of the feed of the rail vehicle is interrupted or turned off. If the vehicle is stationary during operation and a working device producing a tilting torque is in operation, the drive of the implement is alternatively influenced for an immediate reduction of the tilting moment. Since these drive controls are carried out exclusively via a hardware chain and each sensor is capable of making decisions, a particularly high degree of safety can be achieved. It is of particular advantage that this security can not be influenced by an operator.
- a rail vehicle equipped according to the invention features a particularly high degree of protection against derailment. achieved when the distance of the Radentlastungssensors or the switching point - before the first use of the vehicle - purely geometrically adjusted. In addition, even with subsequent installation in a rail vehicle only a small amount of additional design effort is required.
- FIG. 1 shows a schematically simplified side view of a rail vehicle
- FIGS. 2 and 3 each show an enlarged side view of a wheel set having a suspension.
- a rail vehicle 1 shown in FIG. 1 can be moved by wheelsets 2 by means of a travel drive 3 on a track 4 and equipped with a work implement 5 which changes a tilting moment - here for example in the form of a drive 6 comprising a crane.
- the wheelsets 2 are each arranged in pairs in a bogie 7 and have a schematically indicated suspension 8.
- a drive 11 having a car body tenabstützung 12 is provided.
- a Radentlastungssensor 15 for a distance measurement between the suspension 8 supporting the suspension base 13 (or a connected to this axlebox 16) and resting on the suspension 8 load support 14 is a Radentlastungssensor 15 arranged.
- This is designed for example as a proximity switch and opener.
- the mounted on the load support 14 and the bogie frame 10 Radentlastungssensor 15 is arranged in a mathematically determined prior to installation distance d with respect to a connected to the axle bearing 16 and to be detected by the Radentlastungssensor 5 operating bracket 17.
- Each Radentlastungssensor 15 having a preset and a maximum allowable Radentlastung defining shift mark is designed to directly influence the drive 6 of the implement 5 to avoid further increase in the overturning moment and / or the traction drive 3.
- the proximity switch or wheel relief sensor 15 is designed as an opener. The position of the Radentlastungssensors 15 and a switch mark is set with a pre-calculated Radentlastung on the bogie frame 10 such that at the corresponding Radentlastung the traction drive 3 and the drives 6 are interrupted by the opener in the hardware chain. For security reasons, there is no intelligent controller in the decision or hardware chain.
- the wheel relief sensor 15 is mounted above the axle box 16 on the truck frame 10.
- the operating bracket 17 is connected to the axle box 16.
- the dynamic spring travel can be traversed without restrictions during the transfer travel.
- the opener interrupts the traction drive 3 of the rail vehicle 1 so that it is immediately transferred to a derailment-safe operation.
- a release of the vehicle right takes place only when the tilting moment is reduced and thus the suspension 8 is charged more again.
- the derailment security can be ensured with a very high level of security.
- these sensors 15 are especially suitable for work tools 5 with working baskets receiving workers.
- the derailment safety at a maximum wheel unloading is determined. This maximum wheel relief is determined by the one wheel travel s receiving wheel relief sensor 15, which interrupts the traction drive 3 at a set shift mark.
- the verification is carried out according to method 3 according to EN14363. In principle, conditions a) and b) must be fulfilled. a) dQ / QO ⁇ 0.6 with test twist on the twist test bench and wheel unloading due to asymmetry.
- the maximum wheel relief AQ_max can be obtained by means of the wheel contact force in the empty state (empty tank, without loading ..):
- s_max AQ_max / k / k_verst ⁇ 0 .... maximum wheel load sjnax ... maximum spring travel due to rebound (corresponds to the wheel load) k ... spring constant of the respective wheel k_verst ... amplification factor by spring contact distance and Radauf distance.
- each sensor 15 does not communicate with each other, each sensor 15 is capable of decision.
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT972016 | 2016-02-25 | ||
PCT/EP2017/000109 WO2017144153A2 (en) | 2016-02-25 | 2017-01-30 | Method for monitoring the condition of wheel sets and rail vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3419878A2 true EP3419878A2 (en) | 2019-01-02 |
Family
ID=57914935
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17702001.3A Withdrawn EP3419878A2 (en) | 2016-02-25 | 2017-01-30 | Method for monitoring the condition of wheel sets and rail vehicle |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3419878A2 (en) |
CN (1) | CN108602519A (en) |
WO (1) | WO2017144153A2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT520559B1 (en) * | 2017-10-03 | 2019-05-15 | Plasser & Theurer Export Von Bahnbaumaschinen Gmbh | Method for operating a rail-mounted overhead construction machine and overhead construction machine |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT362818B (en) * | 1979-10-05 | 1981-06-25 | Plasser Bahnbaumasch Franz | TRACK PROCESSING OR - TRANSPORT VEHICLE WITH VARIABLE WHEEL LOAD DISTRIBUTION |
EP0713799B1 (en) * | 1994-11-23 | 1999-03-10 | Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H. | Machine for maintenance of a railway overhead line |
GB2426106A (en) * | 2005-05-11 | 2006-11-15 | Harborough Rail Systems Ltd | Instability alarm for a vehicle with a load bearing arm |
DE102011075310A1 (en) * | 2011-05-05 | 2012-11-08 | Putzmeister Engineering Gmbh | Mobile working machine with supporting device |
DE102011101803B4 (en) * | 2011-05-17 | 2014-11-20 | Kirow Ardelt Gmbh | Railway crane |
JP5778599B2 (en) * | 2012-02-22 | 2015-09-16 | 北海道旅客鉄道株式会社 | Method and apparatus for equalizing air spring pressure of railway freight car and railway freight car equipped with the same |
EP2910911A1 (en) * | 2014-02-21 | 2015-08-26 | Tamtron Oy | Improved measurement system for a material transfer vehicle |
-
2017
- 2017-01-30 WO PCT/EP2017/000109 patent/WO2017144153A2/en active Application Filing
- 2017-01-30 EP EP17702001.3A patent/EP3419878A2/en not_active Withdrawn
- 2017-01-30 CN CN201780010864.3A patent/CN108602519A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
WO2017144153A3 (en) | 2017-10-19 |
CN108602519A (en) | 2018-09-28 |
WO2017144153A2 (en) | 2017-08-31 |
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