EP3192716A1 - Wartungsvorrichtung für die wartung von schienenfahrzeugen - Google Patents

Wartungsvorrichtung für die wartung von schienenfahrzeugen Download PDF

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Publication number
EP3192716A1
EP3192716A1 EP17150811.2A EP17150811A EP3192716A1 EP 3192716 A1 EP3192716 A1 EP 3192716A1 EP 17150811 A EP17150811 A EP 17150811A EP 3192716 A1 EP3192716 A1 EP 3192716A1
Authority
EP
European Patent Office
Prior art keywords
maintenance device
railway vehicle
maintenance
maintained
sensor
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Withdrawn
Application number
EP17150811.2A
Other languages
English (en)
French (fr)
Inventor
Louis-Romain Joly
Gérard GRUDE
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.)
SNCF Mobilites
Original Assignee
SNCF Mobilites
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 SNCF Mobilites filed Critical SNCF Mobilites
Publication of EP3192716A1 publication Critical patent/EP3192716A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
    • B61K13/00—Other auxiliaries or accessories for railways

Definitions

  • the present invention relates to the field of maintenance of railway vehicles such as trains, subways, trams, etc., and relates more specifically to a rail vehicle maintenance device.
  • Railway vehicle means any vehicle moving on or being guided by a ground or elevated railway track, defined by rails, ropes, cables or other guide elements for wheels, rollers or other non-friction sliding devices.
  • a railway vehicle may in particular designate a wagon or a set of wagons that can be towed by a locomotive.
  • Such a railway vehicle also designates a self-propelled train, that is to say ensuring its own propulsion.
  • a railway vehicle typically supports a plurality of various devices for driving the railway vehicle.
  • these devices several are generally fixed under the chassis of the railway vehicle.
  • maintenance operations are regularly necessary.
  • the rail vehicle that must be maintained is routed to a dedicated maintenance site.
  • the maintenance site typically typically comprises pits arranged under the vehicle so as to allow the passage of operators under the chassis of the vehicle. This installation is particularly heavy, complex and expensive to implement.
  • the maintenance operations of rail vehicles can also be accomplished by automated means to overcome some of the human resources.
  • the automated means are typically each dedicated to a predetermined type of railway vehicle.
  • a large number of automated means is required to cover all known railway vehicles, which makes this mode of maintenance particularly expensive.
  • the human maintenance means require that the rail vehicle is routed to its dedicated maintenance place, which increases the time and cost of maintenance operations of railway vehicles.
  • Such a mechatronic assistant may be in the form of a flying maintenance device, robotic or remote controlled.
  • a flying maintenance device robotic or remote controlled.
  • the space generally available under the body of a railway vehicle being relatively small, a flight stabilization system equipping the flying maintenance device is necessary.
  • This flight stabilization system is extremely expensive.
  • the energy consumption of the flying maintenance device is very important.
  • Such a mechatronic assistant can alternatively be in the form of a ground maintenance device, equipped with wheels or tracks, which can be robotized or remote controlled, and able to move under the railway vehicle to maintain.
  • the surface generally provided by railways under rail vehicles typically includes a mosaic of ballasts and ties, often irregular, resulting in a lack of stability of the wheel or track mounted land maintenance devices.
  • One solution to improve the stability of the ground maintenance devices is to increase the diameter of the wheels or the surface of the tracks of the maintenance device. This solution is not satisfactory because it increases the size of the maintenance device, which considerably reduces its availability and limits the areas of the rail vehicle to which the maintenance device can actually access. In addition, the increase in the size of the ground maintenance device significantly increases the energy consumption required for its propulsion.
  • a maintenance device comprising a plurality of rolling blocks able to move along guide elements of a railway vehicle and comprising means for modifying the track width of at least one of said rolling blocks , so as to allow a movement of the maintenance device along said guide elements, relative to the railway vehicle to be maintained, the maintenance device can move along the rails of the rail vehicle to maintain, while avoiding obstacles to the railway vehicle to maintain, these obstacles may be including the wheels of the railway vehicle.
  • FIG. 1 illustrating a railway vehicle 1 to maintain.
  • the rail vehicle 1 is mounted on guide elements such as rails 3a and 3b.
  • a maintenance device 5 according to the invention is shown under the box 7 of the rail vehicle 1 to maintain.
  • the maintenance device 5 has a height defined so as to allow its movement under the body of the railway vehicle 1.
  • the maintenance device 5 comprises a frame 9 supporting a plurality of rolling blocks 11.
  • the maintenance device 5 has a generally rectangular shape.
  • the maintenance device 5 is symmetrical about its longitudinal axis 12.
  • the maintenance device 5 may have an asymmetric shape with respect to its longitudinal axis 12, in order to minimize the distances that it will have to travel without having all its wheels in contact with the rails supporting the rail vehicle to maintain.
  • the rolling blocks 11 are able to move along the guide elements of the railway vehicle 1 to be maintained, for example along the rails 3a, 3b shown in FIG. figure 1 as will be seen in the following description.
  • the chassis 9 of the maintenance device 5 comprises a plurality of longitudinal members 13 which interconnect the bearing blocks 11 of the maintenance device.
  • the maintenance device 5 shown in FIG. figure 2 comprises four bearing blocks 11 interconnected by the longitudinal members 13. Of course, a distinct number of bearing blocks 11 constituting the maintenance device 5 can be envisaged.
  • Each of the spacings 15, 17 and 19 between two consecutive rolling blocks 11 may be adapted at will independently of one another, depending on the diameter of the wheels and the distance between the axles of the rail vehicle to maintain.
  • the length of each spar 13 may be separate from one spar to another, and / or a distinct number of spars 13 between two consecutive rolling blocks 11 may be considered.
  • the connection between a spar and a bearing block, or between two spars between them, can be provided by any means known to those skilled in the art, in particular by screwing.
  • the frame 9 of the maintenance device 5 has locations adapted to support measurement and image acquisition devices of the railway vehicle to maintain.
  • These measurement and acquisition devices may be, for example and not limited to, a camera 21 or a "LIDAR", not shown, acronym for "Light Detection And Ranging”.
  • the bearing block 11 comprises in each of its lateral ends 23a and 23b rolling units 25a, 25b respectively supported by support plates 27a, 27b of the bearing block 11.
  • Each rolling unit 25a, 25b is able to move on the along the rails of the railway vehicle to be maintained, for example along the rails 3a, 3b shown in FIG. figure 1 .
  • the rolling units may be equipped with slip-resistant strips 28.
  • the rolling units 25a, 25b are able to be rotated respectively by rotary motors 29a, 29b.
  • the rotary motors 29a, 29b may designate rotary electric motors step by step.
  • Each of the rolling units 25a, 25b may be constituted for example by a wheel, by a track driven by wheels or by a roller, as shown in the figures.
  • more bearing units may be provided at the lateral ends 23a, 23b of the bearing block.
  • the bearing block 11 further comprises support plates 31a, 31b, which in particular allow the attachment of the longitudinal members 13 connecting two adjacent bearing blocks to each other as illustrated in FIG. figure 2 .
  • the rolling units 25a, 25b are able to be driven in translation along an axis substantially parallel to a longitudinal axis 33 of the rolling units.
  • the bearing block 11 comprises two linear actuators 35a, 35b respectively acting on the bearing units 25a, 25b.
  • the linear actuators 35a, 35b are for example driven respectively by linear stepper motors 37a, 37b.
  • Figures 4 and 5 are respectively an enlarged view of the figure 3 , centered on the lateral end 23a of the bearing block 11, and an isometric view of the lateral end 23a of the bearing block 11.
  • the characteristics relating to the lateral end 23a of the bearing block 11 are symmetrically applied to the lateral end 23b of the bearing block 11.
  • the linear actuator 35a comprises a movable rod 39a connected to the support plate 27a.
  • the support plate 27a is also connected to guide rods 41a able to move in translation during the activation of the linear actuator 35a, through bearings 43 which may for example be supported by the support plate 31a and by a complementary support plate 45a.
  • the rotary motors 29a, 29b respectively cause the rotation of the rolling units 25a, 25b about their longitudinal axis 33
  • the linear actuators 35a, 35b respectively driven by the linear motors 37a, 37b respectively cause the translation displacement of the rolling units 25a, 25b along an axis substantially parallel to the longitudinal axis 33 of the rolling units.
  • the track width of the bearing block 11 is modifiable as a function of the stroke of the moving rod of the linear actuator, that is to say that the distance between the rolling units 25a, 25b of the same rolling block is editable.
  • the modification of the track width can be controlled mechanically when the maintenance device encounters an obstacle to the railway vehicle to be maintained.
  • an obstacle can be constituted in particular by the wheels of the railway vehicle to be maintained, resting on their guide elements.
  • the maintenance device comprises electronic detection means for the presence of an obstacle to the railway vehicle to be maintained, these means being able to communicate with a control and control unit of linear actuators 35a, 35 of width modification. track of a bearing block.
  • Such electronic detection means of the presence of an obstacle are for example parameterized to detect the presence of an axle or wheels of the railway vehicle to maintain.
  • Such obstacle detection means may consist of a sensor 47 (visible at figures 2 and 8 ), in particular being an optical sensor (in the visible spectrum or not), and / or an ultrasonic sensor, and / or a resistive sensor, and / or a capacitive sensor, and / or an inductive sensor.
  • This sensor is preferably positioned at the front of the maintenance device, the front of the device being defined relative to the operation of the device when the device moves along the guide elements such as the rails.
  • the electronic means for detecting the presence of an obstacle may comprise means making it possible to detect overcurrent in the motors 29a, 29b controlling the rolling units 25a, 25b.
  • the control and command unit may in turn comprise a database containing information relating to the type of railway vehicle to be maintained.
  • This database may notably include information relating to the geometry of the rail vehicle to be maintained and the geometry of the maintenance device.
  • the electronic detection means for the presence of an obstacle to the railway vehicle may comprise an optical sensor and the control and control unit may comprise an image processing algorithm, parameterized to identify the vehicle. to maintain.
  • the running units of the maintenance device may further be coded wheels and / or adapted to count the number of rotations controlled by the rotary actuators and to communicate this information to the control and command unit. .
  • the aforementioned means for detecting the presence of an obstacle allow the maintenance device to know the location (or locations) at which the rolling units must be retracted in order to allow the movement of the maintenance device relative to the railway vehicle to be maintained.
  • the maintenance device 5 is initially dismantled. The operator deposits the rolling blocks 11 on the rails 3a, 3b. It then connects the bearing blocks 11 to each other through the longitudinal members 13. It installs on the maintenance device the various accessories (sensors, control unit and control, etc.). The maintenance device is ready to use. The operator controls the maintenance device by means of a wired or wireless control panel. If the maintenance device is not equipped with an automatic detection means of the identifier of the railway vehicle to be examined, the operator can himself enter this information.
  • the maintenance device may include robotic means, arranged to allow the movement of the device under the railway vehicle to maintain, autonomously.
  • the maintenance device moves towards the railway vehicle to be maintained.
  • the rolling units 25a, 25b are at this stage all positioned in contact with the rails 3a, 3b.
  • the control and control unit orders the modification of the track width of the first bearing block 11 of the maintenance device.
  • the activation of the linear actuators of the first bearing block 11 causes the retraction of the bearing units 25a, 25b (not visible), thus modifying the track width of the first bearing block 11, so as to allow the displacement of the first block of bearing 11 of the maintenance device along the rails 3a, 3b.
  • step B The progress of the maintenance device continues while the first rolling block 11 has a reduced track width until the first bearing block 11 of the maintenance device exceeds the first obstacle 49.
  • the control and control unit orders the modification of the track width of the first bearing block 11 of the maintenance device.
  • the activation of the linear actuators of the first bearing block 11 causes the stretching of their rods so as to position the rolling units 25a, 25b in a position in which they bear on the rails 3a, 3b (step C).
  • the maintenance device 5 has the advantage of to be able to move under the railway vehicle to be maintained, that is to say that the maintenance device remains stable on the rails 3a and 3b during its passage along the rails and when it encounters the obstacles. In other words, no force maintaining the position of the maintenance device is necessary thanks to the arrangement of all the running blocks of the maintenance device according to the invention.
  • the information detected by the maintenance device during its movement can be returned directly to the operator using the maintenance device or can be sent remotely for processing, or processed directly on board the aircraft. railway vehicle.
  • the accessibility of the underbody maintenance device of the rail vehicle is improved.
  • the reduction in the size of the maintenance device also significantly reduces the energy consumption required for its propulsion vis-à-vis mechatronic wizards of the prior art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
EP17150811.2A 2016-01-14 2017-01-10 Wartungsvorrichtung für die wartung von schienenfahrzeugen Withdrawn EP3192716A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1650290A FR3046772B1 (fr) 2016-01-14 2016-01-14 Dispositif de maintenance pour la maintenance de vehicules ferroviaires

Publications (1)

Publication Number Publication Date
EP3192716A1 true EP3192716A1 (de) 2017-07-19

Family

ID=55650531

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17150811.2A Withdrawn EP3192716A1 (de) 2016-01-14 2017-01-10 Wartungsvorrichtung für die wartung von schienenfahrzeugen

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EP (1) EP3192716A1 (de)
FR (1) FR3046772B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3078160A1 (fr) * 2018-02-22 2019-08-23 Alstom Transport Technologies Dispositif d'inspection de sous-chassis de vehicule ferroviaire et procede d'inspection correspondant

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3073806B1 (fr) * 2017-11-17 2021-04-16 Sncf Mobilites Dispositif de mesure des brosses de contact

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021488A1 (de) * 2003-06-04 2005-01-05 Windhoff Bahn- Und Anlagentechnik Gmbh Prüfstand für Drehgestelle und/oder Radsätze von Schienenfahrzeugen
FR2917432A1 (fr) * 2007-01-09 2008-12-19 Atmf Soc Par Actions Simplifie Dispositif de decapage, nettoyage, d'entretien, d'applications de produits sur des barres metalliques ou des barres en tous materiaux.
CN204184377U (zh) * 2014-09-26 2015-03-04 中机生产力促进中心 一种用于不解编列车组的检修系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021488A1 (de) * 2003-06-04 2005-01-05 Windhoff Bahn- Und Anlagentechnik Gmbh Prüfstand für Drehgestelle und/oder Radsätze von Schienenfahrzeugen
FR2917432A1 (fr) * 2007-01-09 2008-12-19 Atmf Soc Par Actions Simplifie Dispositif de decapage, nettoyage, d'entretien, d'applications de produits sur des barres metalliques ou des barres en tous materiaux.
CN204184377U (zh) * 2014-09-26 2015-03-04 中机生产力促进中心 一种用于不解编列车组的检修系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3078160A1 (fr) * 2018-02-22 2019-08-23 Alstom Transport Technologies Dispositif d'inspection de sous-chassis de vehicule ferroviaire et procede d'inspection correspondant
EP3531102A1 (de) * 2018-02-22 2019-08-28 ALSTOM Transport Technologies Verfahren und vorrichtung zur inspektion des hilfsrahmens eines schienenfahrzeugs

Also Published As

Publication number Publication date
FR3046772A1 (fr) 2017-07-21
FR3046772B1 (fr) 2019-06-14

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