EP0720943A1 - Dispositif de levage avec griffes pour rails - Google Patents

Dispositif de levage avec griffes pour rails Download PDF

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Publication number
EP0720943A1
EP0720943A1 EP95100079A EP95100079A EP0720943A1 EP 0720943 A1 EP0720943 A1 EP 0720943A1 EP 95100079 A EP95100079 A EP 95100079A EP 95100079 A EP95100079 A EP 95100079A EP 0720943 A1 EP0720943 A1 EP 0720943A1
Authority
EP
European Patent Office
Prior art keywords
lifting
lifting device
track
claws
working position
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Withdrawn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
EP95100079A
Other languages
German (de)
English (en)
Inventor
Heinz Dipl.Ing. Lörfing
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.)
Windhoff AG
Original Assignee
Windhoff AG
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 Windhoff AG filed Critical Windhoff AG
Priority to EP95100079A priority Critical patent/EP0720943A1/fr
Publication of EP0720943A1 publication Critical patent/EP0720943A1/fr
Withdrawn legal-status Critical Current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
    • B61K5/00—Apparatus for placing vehicles on the track; Derailers; Lifting or lowering rail vehicle axles or wheels

Definitions

  • the invention relates to a lifting device according to the preamble of claim 1.
  • Such lifting devices are known for example from DE-41 27 028 C1. Devices of this type are designed to drive on the floor level and to raise the wheel sets, the weight occurring in this case being introduced into the ground via the chassis of the lifting device.
  • the wheel sets are replaced in that interruptions in the track body are generated by track bridges, so that the track is interrupted at these points and the wheel sets or bogies can be removed laterally transversely to the track direction.
  • the invention has for its object to improve a known lifting device in such a way that it enables the change of wheelsets and bogies of different types of wagons, with little or no structural changes to the railway depot are required.
  • the invention proposes to provide small, movable lifting devices that travel at floor level or in a pit, which is often provided for the optical inspection of the trains between the rails. Because the lifting devices can be moved, they can be moved in adaptation to the most varied of center distances and enable the maintenance of a wide variety of wagon types.
  • Structural changes to the rail depot e.g. B. a reinforcement of foundations or similar renovation measures are unnecessary. At most, it can be provided to provide guide rails on the floor or in the pit, on which the lifting devices can be moved in order to ensure their correct alignment between the rails and thus to ensure the correct support of the claw claws on the rails.
  • the undercarriage can be raised - when the claws rest on the rails - so that there is no longer any contact with the ground and the entire lifting device can only be used via the Track claw supports.
  • the lifting device comprises a chassis with resilient wheels, the spring strength initially being designed only to carry the lifting device itself.
  • the travel is dimensioned so that the lifting device with its sprung parts is kept at a distance from the ground.
  • the track claws can be adjusted by an electric motor or hydraulically or in another suitable way and from their rest position into the Working position to be moved.
  • a particularly simple and, if necessary, manual operation can be provided in that the claws are pivotally mounted eccentrically with respect to their center of gravity and tension a spring during their pivoting movement into the working position. In this way, a hard impact of the track claws on the rail heads is prevented by the tension of the spring, and secondly, the lifting of the track claws for the return movement into their rest position is supported by the spring, so that manual operation is possible.
  • the bearing of the claws can be chosen with respect to their center of gravity so that a dead center is exceeded during the movement of the claws, so that the claws are stably supported in their rest position and can only be moved into the working position when this dead point is overcome.
  • a reliable locking of the claw claws in their working position can be achieved in that pivotable bolts are provided, which are eccentrically mounted and always bear against their respective sliding claws by their own weight on their sliding surface.
  • pivotable bolts are provided, which are eccentrically mounted and always bear against their respective sliding claws by their own weight on their sliding surface.
  • a locking mechanism of such simple construction can be operated by hand by first lifting the latch when the lifting device is relieved and removing it from the latch edge of the claw becomes. Then the claw can be moved from its working position to the rest position. Since the weight of the bolt does not have to be very large and the movement of the track claw can be spring-supported, this work is possible without motor aids and allows the lifting device to be designed at low cost.
  • lifting spindle gears for lifting the lifting pallet.
  • either a single pressure spindle can be provided per lifting device or two pulling spindles interacting in pairs, a lower spindle load occurring when two pulling spindles are used and two weakly dimensioned drive motors can be used than when using a single central lifting spindle.
  • the drive of the motors is synchronized to ensure that the pull spindles run in sync.
  • a safety nut is advantageously provided in addition to the main nut, which ensures the function of the lifting device in the event of wear or a defect in the main nut and, for example, prevents the sudden lowering of a raised lifting pallet.
  • the wear of the main nut can be monitored electrically, e.g. B. by monitoring an intended gap between the thread of the spindle and the nut.
  • the lifting device can have an electronic circuit which serves for the synchronization of a plurality of lifting devices in the case of an electrically controlled drive of the lifting devices. This can be the case, for example, when using two lifting elements on the same lifting device, e.g. B. when using two pull spindles on the same lifting device.
  • a pit 9 is provided in the floor 1 between the foundations 2, two guide rails 10 being provided in the area of the pit floor above a sump or a collecting trough, on which a lifting device 11 is guided so as to be movable by means of wheels 12.
  • the lifting device 11 comprises, as the actual lifting element, a lifting spindle gear, which acts as a pressure spindle 14 is formed.
  • a lifting pallet 15 can be raised by means of the pressure spindle 14, which can grip and raise the wheel flanges of the running wheels 7 of the wheel set 5 by means of corresponding claws 16.
  • the lifting device 11 comprises track claws 17, which are shown in solid lines in their working position, in which they are arranged above the rail heads of the rails 4.
  • the track claws 17 are shown in a raised position, in which they are drawn in between the rails 4, the track claws 17 being pivotably mounted about a pivot point 18 and being pivotable from their rest position, shown in dash-dotted lines, into the working position shown in solid lines.
  • Fig. 1 From Fig. 1 it can also be seen that in the rest position shown in dash-dotted lines the claws 17 bars 19 rest against an upper edge of the claws 17, this upper edge being designed as a sliding surface to which a bar edge 20 is connected. During the swiveling movement of the locking claws 17 from their rest position shown in dash-dotted lines into the working position shown in solid lines, the locking bars 19 slide along this sliding surface until they reach behind the locking edge 20 and thus lock the track claws 17 in their working position.
  • the lifting member can be actuated, that is, the pressure spindle 14 can be moved upwards, whereby they takes the lifting pallet 15 with it, also lifts and thus finally lifts the wheel set 5.
  • the forces of the pressure spindle 14 are introduced into a frame structure 21 of the lifting device 11, the track claws 17 in turn being attached to the frame structure 21, so that the forces absorbed by the frame structure 21 are introduced into the rails 4 via the track claws 17 and a load the pit floor is not or not to a significant extent.
  • the frame structure 21 can be seen, which receives both the pressure spindle 14 and the track claws 17. 2 that the pressure spindle 14 is assigned a drive motor 22, for example in the form of an electric motor.
  • holding brackets 23 are provided which enable the lifting device 11 to be handled by hand, so that the lifting device 11 can be moved, for example by hand, over the guide rails 10.
  • a gear wheel to which a sensor is assigned can be provided on the lifting spindles or their motors.
  • the sensor registers the teeth moving past it within a defined period of time, in advance the rotational speed of the motor or the lifting spindle and thus the lifting speed of the lifting pallet 15 can be calculated.
  • Fig. 3 it can also be seen that the claws 17 are mounted between two sheets 25 of the frame structure 21 and that in the area of the lifting pallet 15 in front of and behind the wheel 7 of the train, roll-off safeguards 26 are provided, which are used to transport the wheelset on the lifting pallet 15 prevent the wheels 7 from rolling.
  • roll-off safeguards 26 can be extended from a retracted position into their position securing the impeller 7, with the use of arrows in FIG. 4 indicating that the roll-off safeguards 26 move out of this securing position, in which they reach the area of the flange of the impeller 7 protrude, can be drawn into a releasing position.
  • a tolerance is provided which, when the track claws 17 are pivoted into their working position, causes a slight gap between the track claws 17 and the rail heads of the rails 4. If in this position the lifting pallet 15 is raised by the pressure spindle 14, the weight of the wheel set 5 will first be so large that not the wheel set 5 is raised, but that the lifting device 11 is first pressed down until the claws 17 on the The rail heads of the rails 4 rest.
  • the lifting device 11 does not lower further, but from this point in time the wheel set 5 is raised with a further movement of the pressure spindle 14.
  • FIG. B. for pivoting the track claws 17 or the latch 19, and a drive motor for moving the entire lifting device 11.
  • the illustrated exemplary embodiments merely represent an inexpensive embodiment of a lifting device according to the invention, in which many components can be actuated by hand. These exemplary embodiments therefore take into account the consideration that a plurality of similar lifting devices 11 are preferably used at the same time in order to lift an entire wagon or an entire train at the same time. Given the large number of lifting devices required, their cost-effective design is advantageous.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
EP95100079A 1995-01-04 1995-01-04 Dispositif de levage avec griffes pour rails Withdrawn EP0720943A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP95100079A EP0720943A1 (fr) 1995-01-04 1995-01-04 Dispositif de levage avec griffes pour rails

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95100079A EP0720943A1 (fr) 1995-01-04 1995-01-04 Dispositif de levage avec griffes pour rails

Publications (1)

Publication Number Publication Date
EP0720943A1 true EP0720943A1 (fr) 1996-07-10

Family

ID=8218887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95100079A Withdrawn EP0720943A1 (fr) 1995-01-04 1995-01-04 Dispositif de levage avec griffes pour rails

Country Status (1)

Country Link
EP (1) EP0720943A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326765B3 (de) * 2003-06-13 2004-09-30 Khanmoradi, Bijan Wolfgang, Dipl.-Ing. Verschiebemethode eines Eisenbahnwaggons mittels einer Vorrichtung zum Auswechseln von Radsätzen an Schienenfahrzeugen
EP1935746A1 (fr) 2006-12-22 2008-06-25 NEUERO Technology GmbH Voie ferrée de maintenance
ITBO20110212A1 (it) * 2011-04-20 2012-10-21 Rinieri Alberto Costruzioni M Eccaniche Di L Piattaforma elevatrice e rotante per operazioni di smontaggio e di rimontaggio di assili o di altri componenti da cala-assi ferroviari o da altre attrezzature analoghe.
CN104527717A (zh) * 2014-12-16 2015-04-22 南车青岛四方机车车辆股份有限公司 一种可整体提吊的轨道车辆

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE726390C (de) * 1941-06-08 1942-10-12 Windhoff Rheiner Maschf Vorrichtung zum wahlweisen Auswechseln von Laufradachsen oder Drehgestellen
WO1990000486A1 (fr) * 1988-07-06 1990-01-25 Gebr. Dickertmann Hebezeugfabrik Ag Procede et dispositif d'echange d'essieux sur des vehicules sur rails

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE726390C (de) * 1941-06-08 1942-10-12 Windhoff Rheiner Maschf Vorrichtung zum wahlweisen Auswechseln von Laufradachsen oder Drehgestellen
WO1990000486A1 (fr) * 1988-07-06 1990-01-25 Gebr. Dickertmann Hebezeugfabrik Ag Procede et dispositif d'echange d'essieux sur des vehicules sur rails

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10326765B3 (de) * 2003-06-13 2004-09-30 Khanmoradi, Bijan Wolfgang, Dipl.-Ing. Verschiebemethode eines Eisenbahnwaggons mittels einer Vorrichtung zum Auswechseln von Radsätzen an Schienenfahrzeugen
EP1935746A1 (fr) 2006-12-22 2008-06-25 NEUERO Technology GmbH Voie ferrée de maintenance
ITBO20110212A1 (it) * 2011-04-20 2012-10-21 Rinieri Alberto Costruzioni M Eccaniche Di L Piattaforma elevatrice e rotante per operazioni di smontaggio e di rimontaggio di assili o di altri componenti da cala-assi ferroviari o da altre attrezzature analoghe.
CN104527717A (zh) * 2014-12-16 2015-04-22 南车青岛四方机车车辆股份有限公司 一种可整体提吊的轨道车辆
CN104527717B (zh) * 2014-12-16 2017-01-25 中车青岛四方机车车辆股份有限公司 一种可整体提吊的轨道车辆

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