EP2748375B1 - Lifting and alignment system - Google Patents

Description

The invention relates to a Heberichtsystem for laying in a solid lane track for rail vehicles, with pairwise positionable on right and left side rails of the track Heberichtvorrichtungen, each one below the rails of the track on a roadway placeable and height adjustable with respect to this supporting element, wherein the Rails are mounted by means of pivot bearing devices about a track longitudinal course at least substantially parallel pivot axis pivotally mounted on the respective support elements.

The installation of tracks in a fixed track requires maximum precision. This is mainly due to the fact that subsequent corrections of such types of superstructure (compared to classic ballast tracks), if at all possible, are associated with considerable effort.

Consequently, not only experienced personnel and a suitable measurement technique are required for such construction measures, but it also requires a Heberichtsystem by means of which the desired track position can be reliably adjusted and maintained until the completion of the installation process.

For most of the fixed carriageways, the tracks are installed according to the top-down principle. In this case, a corresponding basis in the form of the substructure and / or certain support layers is built with low accuracy first. Subsequently, the track rails and possibly other elements such as fasteners, sleepers or support plates are set up to the millimeter from the top (top-down). Finally, this desired, exact position of such a track grating is held / preserved by in the cavity between the inaccurately manufactured lower layers and the precisely aligned, upper track elements usually liquid, hardening materials (preferably in-situ concrete or binder-containing mortar) are filled and this cavity completely fill. In this way, all inaccuracies resulting from the installation of the lower layers are neutralized and the track grid is precisely and permanently fixed in the desired position.

For the establishment of the position of the track before its final casting with in-situ concrete or the like. So-called hoist systems with hoisting devices are used, which must enable a precise adjustment of the track above the substructure in height, lateral position and elevation of the track grate, rail inclination and the gauge. Frequently, it is also demanded that the tracks set up with such hoisting systems already be loadable before the final casting, ie must be passable by rail vehicles, because construction site transports are often handled via the not yet cast track. Despite considerable mechanical Impacts (operations, transports, unintentional loads) and temperature effects (length change of the rails due to temperature fluctuations), the straightening system must ensure the precisely set shape of the track. It should work reliably under rough site conditions and be quick and easy to operate and assemble and disassemble.

Most hoist devices of known hoist systems have been designed as a rigid frame in the understandable desire for a fixed, immovable fixation of the track grate, whose only freedom of movement are the regulatory possibilities. All other degrees of freedom are avoided in order to prevent possible displacement / deformation possibilities. However, this concept works well only in non-elevated areas (no bank of the track), because in such cases neither the weight of the directed track grid, nor any traffic loads generate lateral forces. However, as soon as the track has an incline - which is the case in every bend - the weight of the track grate and the possible traffic loads naturally cause shear forces which try to move the directional track from its desired position.

Some hoist systems use (in terms of vertical forces) very stable support elements, such as concrete blocks, to allow for possible on-board vehicle traffic. The straightening of the height and position of the track grille is then carried out with corresponding pressure-resistant elements, which are arranged between the support elements and the rails. The arrangement of the support elements directly under the rail to reach (at least in not excessive track areas) a cheap, largely centric load transfer, which favors the stability of the system. However, these support elements are relatively inflexible. Due to their rigid dimensions, they can be used without considerable additional effort only in projects in which the substructure is made very accurately and above all according to the track geometry (bank / bank elevation). In addition, this known system can also cause problems, the greater the cant / bank of the track section to set up because of the then by vertical load (dead weight, crossings) resulting lateral forces that can cause unwanted Gleisrostverschiebungen. This can change the massive design of the support elements only slightly. In excessive track areas, the removal of vertical loads is no longer centric. This creates torques that favor the lateral tilting of the support elements, which can also happen in careless arrangement. The same torques may also affect the gauge.

It is also known to use flexible support elements usually in the form of spindles / screws for setting up the track position. Such elements allow stepless regulation of the track grating height, but only a minimal effect on the structure of the respective track Roadway system and can be used easily again. In contrast to the above-described rigid support elements, however, they are only limited resilience and not suitable for driving with rail vehicles in the installed state in the present form easily. Especially in connection with the principle of the rigid frame results in excessive track sections a pronounced vulnerability to unwanted Gleisrostverschiebungen due to the resulting lateral forces.

Since the spindles / screws must be removed after track installation, they generally need to be positioned laterally beside the rails either on the inside or outside of the track. This results in not excessive track sections for eccentric load transfer, which has a bending moment. This bending moment has a negative effect on the behavior of the track grid to be straightened.

From the WO 2000/044987 A1 a device for height and side alignment and / or support of the rails of a track is known, formed in the support elements for the rails as pendulum supports and are stiffened diagonally by a length-adjustable train / pressure element. By elongation or shortening of the tension / compression element, a lateral displacement of interconnected by a connecting element rails is possible.

From the EP 1 740 771 B1 a device for adjusting a track grid and points is known, come in the Heberichtvorrichtungen as in the generic system used.

The object of the invention is to provide a Hebrichtsystem of the type mentioned in such a way that it can be used in different fixed carriageway systems, can be adapted with minimal effort to different project requirements and thus even in excessive track sections a passability of the track once established is possible without having to fear that the track will lose its desired position.

This object is achieved with the inventive Heberichtsystem in that the pivot bearing devices each have a mountable on the rail mounted retaining clip and that the retaining clips of two pairs arranged on the left and right side rail Heberichtvorrichtungen with mounting devices for the right and left side rails in the track spacing On the one hand, in the invention, the articulated support of the rail (s) by means of the pivot bearing device ensures that even in greatly inflated track areas all vertical loads are transmitted completely vertically into the substructure. In contrast to the concept described at the beginning with 'rigid frame', no transverse track forces are generated here from the vertical forces, even if the track is not must be set up with a strong elevation. By adjusting the altitudes of the support elements, the degree of elevation is determined, which adjusts any arbitrary bank of the track infinitely, stress-free and above all independently due to the pivoting about the rail axis with the pivot bearing enabled pivotability. Due to the stress-free Auflagerung of the track grid with the Heberichtsystem invention neither the rail inclination, nor the gauge are affected. Both are given trouble-free by the lane keeping elements. On the other hand, a self-stable track grid is created by means of the retaining brackets and the track holding elements connecting them together despite the pivotable Auflagerung the rails, the brackets and lane holding elements can be easily disassembled and reused after installation of the rails once.

In an advantageous development of the inventive hoisting system, the lane-keeping elements can be detachably connected to the retaining clips mounted on the rails. This facilitates the assembly of the system in that the Heberichtvorrichtungen can be arranged individually below the two rails, the gauge either by means of releasably attachable to the retaining brackets tracking elements is either already set or the tracking elements after the - provisional - Setting up the Heberichtvorrichtungen to be assembled.

In an advantageous embodiment of the device according to the invention, at least two height adjustment elements are arranged on both sides of the rail or the pivot bearing device which supports them on the support element. Due to the two-sided arrangement of Höheneinstellelemente the rails are always at least almost symmetrical as supported by a bridge. Preferably, the two Höheneinstellelemente are offset in the track longitudinal direction to each other, wherein the risk of tilting about a transverse axis extending transversely to the track longitudinal direction eliminated, at least in any case is minimized.

The pivot bearing device is preferably arranged displaceably on the support element transversely to the longitudinal course of the track, so that it is possible to regulate the lateral position of the track by a displacement of the pivot bearing device, without the need to intervene in the position of supporting itself on the substructure Höheneinstellelemente.

The pivot bearing device of a Heberichtvorrichtung may have a arranged on the associated support member Einstellschlitten on which the retaining clip is tiltably mounted about the pivot axis or storable. In this embodiment, the retaining clip can be fastened to the rail particularly quickly and reliably, thereby ensuring its pivoting relative to the lifting device supporting it. A constructive special robust and even under adverse conditions of use reliable configuration is obtained when the retaining clip is provided on an underside with a substantially semicircular or arch-shaped hinge strip in cross section, which engages in a formed on an upper side of the adjustment slide, adapted to the shape of the hinge rail hinge groove. Equivalent to this is an embodiment in which on the upper side of the adjusting a cross-section approximately semicircular or arched hinge strip is provided and is located on the underside of the retaining clip adapted thereto a hinge groove.

The retaining clips are preferably each formed substantially by two mutually lockable clip elements, which can be created from the two sides of the rail preferably in the region of the rail of this foot or create and clamp the rail in the locked state of the clip elements between them.

It has proven to be particularly advantageous if the mounting devices are provided for connecting the track-holding elements to the rail-inside clamping elements of the retaining clips. The lane-holding elements can then be connected indirectly via the retaining clips on the rails, for which purpose firstly the retaining clips are fastened to the rails and subsequently the lane-keeping elements are coupled to the retaining clips with the aid of the mounting devices. The arrangement may preferably be made such that the mounting devices substantially consist of upwardly open and V-shaped or trapezoidal downwardly tapered grooves and that the tracking elements are provided at their ends with adapted connection plates, with which they can be inserted in a form-fitting manner in the receiving grooves are.

The pivot bearing device can be adjusted by means of an acting between her and the support member adjusting screw, adjusting spindle or an actuating cylinder to adjust the lateral position of the track accurately.

Preferably, the rail in the direction of the longitudinal course of the track slidably to the support member at this auflagerbar, which is preferably achieved in that the retaining clip is mounted relative to the adjustment slide in the longitudinal direction of the rail or on this slidably. Longitudinal expansions of the rail, which tolerates this example, due to temperature fluctuations, do not affect in this way on the position of the Heberichtvorrichtung, the set track position is thus maintained even when length changes of the rails.

The height adjustment elements are formed in an advantageous embodiment of the invention of adjusting spindles or lifting cylinders.

Especially in areas where the track is laid with tight radii It may be advantageous for individual or all Heberichtvorrichtungen in a track section to provide at least one anti-roll bar element which preferably engages the support member and with which the Heberichtvorrichtung can be supported transverse to the longitudinal course of the track on the roadway or a side extending next to the track retaining wall or support wall. With such a stabilizer element, lateral forces acting on the lifting device can then also be absorbed and removed into the roadway substructure or a retaining wall / supporting wall located laterally next to the track, so that the height adjusting elements remain at least largely unencumbered by the transverse forces. The particular advantage of this construction is that with the anti-roll bar element a lateral support of the track is achieved, without thereby affecting the adjustability of the track or rail position by means of the transversely displaceable Einstellschlittens, since the stabilizer bar element is not immediately supported laterally against the rail, but on the stationary part, in particular the support element, the Heberichtvorrichtung. Even after the lateral support is mounted with the anti-roll bar element, the transverse spindle can be actuated and thereby the track can be set laterally in the desired position.

• Fig.1 ein erfindungsgemäßes Heberichtsystem für ein in einem Gleistrog verlegtes Eisenbahngleis in perspektivischer Darstellung;
• Fig. 2 ein aus zwei Heberichtvorrichtungen und einem Spurhalter bestehendes Heberichtsatzmodul des Heberichtsystems nach Fig. 1 in einer perspektivischen, auseinandergezogenen Darstellung;
• Fig. 3 den Gegenstand der Fig. 2 im mit den Schienen des Gleises zusammengebauten Zustand;
• Fig. 4 A-D einen Teil einer erfindungsgemäßen Heberichtvorrichtung in verschiedenen perspektivischen Darstellungen zur Illustration der verschiedenen Einstellmöglichkeiten und Freiheitsgrade;
• Fig. 5 eine perspektivische Darstellung der erfindungsgemäßen Heberichtvorrichtung zur Illustration der Montage einer Schiene an der Halteklammer; und
• Fig. 6 eine vereinfachte Schnittdarstellung des Heberichtsystems in einem Gleisabschnitt mit Überhöhung.

Further features and advantages of the invention will become apparent from the following description and the drawing, in which a preferred embodiment of the invention with reference to an example and explained in more detail. It shows:

• Fig.1 an inventive Heberichtsystem for a misplaced in a Gleistrog railroad track in perspective view;
• Fig. 2 a Heichtsatzmodul the Heberichtsystems according to two Heberichtvorrichtungen and a track holder after Fig. 1 in a perspective, exploded view;
• Fig. 3 the object of Fig. 2 in the state assembled with the rails of the track;
• Fig. 4 AD a portion of a Heberichtvorrichtung invention in various perspective views to illustrate the various adjustment options and degrees of freedom;
• Fig. 5 a perspective view of the invention Heberichtvorrichtung to illustrate the mounting of a rail on the retaining clip; and
• Fig. 6 a simplified sectional view of the hoist system in a track section with elevation.

This in Fig. 1 in its entirety designated 10 Heberichtsystem serves to align a fixed track to be laid track 11 in its correct, desired position above a roadway substructure 12 and laterally next to two support walls 13 of a roadway trough 14 before the set position of the track set by Filling of in-situ concrete is fixed in the roadway trough, which then firmly encloses the track rails or the attached thereto sleepers or rail support body (not shown) after curing.

The hoisting system 10 has a multiplicity of lifting sets 16 arranged one after the other in the longitudinal course 15 of the track, each consisting of two paired hoisting devices 17 and a track holding element 18 arranged transversely to the longitudinal track 15, which can be detachably connected to the hoisting devices in the manner described below in detail is.

How to best in the 4 to 6 can recognize, each of the Heberichtvorrichtungen 17 has a aufstellbares on the roadway base 12 and with respect to this height adjustable, approximately plate-shaped support member 19 which is provided on its upper side with a pivot bearing device 20. The adjustment of the height position of the support element above the roadway substructure is carried out by means of two height adjustment elements 21, which are formed in the illustrated embodiment of adjusting spindles which are screwed into right and left side of the pivot bearing device 20 on the support member fixedly arranged spindle nuts. By turning the adjusting spindles 21 in the spindle nuts, the height of the support element 19 can be changed over the roadway base 12, as shown in the Fig. 4A indicated by the arrows. Here, a horizontal orientation of the support element is independent of the condition of the road surface reachable because the adjusting spindles can be rotated independently and so unevenness of the substructure can be compensated (see. Fig. 6 ).

The pivot bearing device 20 consists essentially of a support member 19 transversely to the longitudinal direction 15 of the track or the rails slidably arranged Einstellschlitten 23 and a mountable to a rail 24 of the track 11 retaining clip 25 which is tiltably mounted on Einstellschlitten about a pivot axis 26, which Pivot axis is at least substantially parallel to the longitudinal course 15 of the track or its rail 24. The retaining clip 25 is formed by two mutually lockable clip elements 27, 28, which can be attached from the two sides of the rail in the region of the rail foot 29 at this and then fixed by means of a clamping screw 30, wherein they firmly clamp the rail between them ( Fig. 5 ). In order to ensure the pivoting movement of the retaining clip with respect to the adjustment slide, the retaining clip or one of the two clip elements 27 is provided with a downwardly convex, substantially semicircular hinge strip 31, while a hinge groove 32 is formed on an upper side of the adjustment slide 23, which is adapted to the cross-sectional shape of the hinge strip. As a result, this can turn a little way back and forth in the hinge groove about the pivot axis 26, whereby the Tilting movement of the retaining clip and thus of this clamped rail 24 relative to the adjusting slide and thus the support member 19 is possible.

In order to adjust the adjusting slide transversely to the longitudinal course of the track, it is transversely slidably received on the support member 19 in a slide 33 and coupled with a transverse spindle 34, with the help of the Einstellschlitten are moved very sensitively and exactly in the slide to the left or right can Fig. 4B ). It can be seen that while the retaining clip 25, the hinge strip engages positively in the provided on the adjusting hinge groove is taken transversely to the rail longitudinal direction and thus the lateral position of the attached to the support bracket 25 rail is adjusted by turning the transverse spindle 34. Especially Fig. 4B also shows that the retaining clip 25 or its one clip element 27 can move freely in the longitudinal direction 15 of the track relative to the adjusting slide, because the hinge strip 31 extending between two lateral flanges 27A, B of the clip element 27 is longer than the one formed in the adjusting slide hinge groove 32 so that the retaining clip 25 and thus the rail 24 clamped therein in any case limited slidably mounted in the longitudinal direction 15 of the track to the support member 19 of the Heberichtvorrichtung 17.

As already mentioned above, the two lifting devices 17 of each Heberichtsatzes 16 are held by means of a track-holding element 18 at the correct distance from each other. The track-holding element 18 is provided for this purpose at its two ends 35 with a cross-sectionally V-shaped downwardly tapered connection plates 36, while the inner clip elements 28 of the retaining clips 25 have grooves 37 which are adapted to the cross-sectional shape of the connection plates, so also down Rejuvenate V- or trapezoidal and into which the connection plates 36 of the track-holding elements 18 can be inserted from above. Due to the V-shaped configuration of the grooves 37 and the plates 36 to achieve a self-centering, positive, backlash-free locking and a firm connection of the right and left side retaining clips 25 at the correct distance from each other to the track spacing of the clamped by the retaining clips left and right Ensure rails from each other. However, the design of the mounting devices formed essentially by the grooves 37 with the track holding elements connectable not only causes a correct adjustment of the lateral distance of the two rails from each other, but also prevents a tilting movement of the left and right side rail relative to each other about their longitudinal axis, ie the tracking elements cause the rail inclination of both rails when aligning the track need not be set independently, but gauge and rail inclination despite the very compact Construction always be reliably maintained.

The inventive solution in which the track is supported on the Heberichtvorrichtungen on the pivot bearing devices and thus a pivotable Auflagerung the rails on the support member is achieved about a pivot axis pivoting rail, resulting in that even when aligning the track with elevation, as best in Fig. 6 It can be seen that no lateral forces resulting from the dead weight of the track or a traffic load acting on it have to be absorbed by the holding devices and deposited in the roadway substructure. The bearing forces act only in the vertical direction, ie in the longitudinal direction of the Höheneinstellelemente 21, which thus can transmit these compressive forces without lateral force and without bending moment.

However, in exceptional cases, for example, curves with comparatively small radii, still no sufficient securing position of the invention Heberichtsystems be achieved, it is possible with simple means to provide a gain. For this purpose, the support elements 19 of the Heberichtvorrichtungen 18 by means of anti-roll bar elements 38 are spread laterally against the support walls 13 of the roadway trough 14, as shown in the Fig. 1 and 3 is clearly recognizable. Of course, such anti-stabilizer elements, which are simply screwed to the plate-shaped support elements and supported for example under spring tension on the side of the track running walls, also support tunnel walls, banquets or other stable objects in the area. Despite such a rigid or substantially rigid fixation of the support elements laterally relative to the walls running alongside the track or the like. is a device of the track grid with the invention Heberichtsystem continue precise and reliable possible because the lateral adjustment of the support brackets supporting Einstellschlitten relative to the support elements, the height adjustment of the support members by means of Höheneinstellelemente and in particular the pivoting movement of the rails of the track to its longitudinal axis parallel pivot axes is not prevented by the anti-roll bar elements.

Claims (14)

1. Lifting and alignment system for a track (11) for rail vehicles to be laid in slab track with lifting and alignment devices (17) that can be positioned in pairs at right and left side rails (24) of the track (11), which respectively have a support element (19) that can be placed below the rails of the track on a track substructure and which are height-adjustable relative thereto, wherein the rails (24) are supported on the respective support elements (19) in a pivotal manner by means of pivot bearing devices (20) about a pivot axis (26), which is at least essentially parallel to the longitudinal extension (15) of the track, characterized in that the pivot bearing devices (20) each have a retaining clamp (25) that can be mounted on the supported rail (24) and that the retaining clamps (25) of lifting and alignment devices (17) arranged respectively in pairs at the left and right side of the rail are provided with mounting devices (37) for track retaining elements (18) retaining the left and right side rails in a spaced manner of each other at the track distance.
2. Lifting and alignment system according to claim 1, characterized in that the track retaining elements (18) can be connected to the retaining clamps (25) in a releasable manner.
3. Lifting and alignment system according to claim 1 or 2, characterized in that the support elements (19) respectively have at least two height adjustment elements (21) on both sides of the rail (24) or of the pivot bearing device (20) supporting these.
4. Lifting and alignment system according to claim 3, characterized in that the two height adjustment elements (21) are arranged offset to each other in the longitudinal track direction.
5. Lifting and alignment system according to one of claims 1 to 4, characterized in that the pivot bearing devices (20) at the support elements (19) are arranged in a displaceable manner transversely to the longitudinal extension (15) of the track (11).
6. Lifting and alignment system according to one of claims 1 to 5, characterized in that the pivot bearing device (20) of a lifting and alignment device (17) has an adjusting slide (23) arranged at the associated support element (19), on which slide the retaining clamp (25) is supported or can be supported about the pivot axis (26) in a tiltable manner.
7. Lifting and alignment system according to claim 6, characterized in that the retaining clamp (25) is provided with an essentially semi-circular or segmental arch-shaped hinge bar (31) in its cross section at a bottom side, which bar surrounds a hinge groove (32) formed at an upper side of the adjusting slide (23) adapted to the form of the hinge bar (31).
8. Lifting and alignment system according to claim 6 or 7, characterized in that the retaining clamp (25) is essentially formed by two clamping elements (27,28) that can be interlocked with each other, which abut it from the two sides of the rail (24) preferably in the region of their rail foot (29) and which clamp the rail (24) between them in the locked state of the clamping elements (27,28).
9. Lifting and alignment system according to claim 8, characterized in that the mounting device (37) is formed on the clamping element (28) of the retaining clamp (27) at the inner side of the rail.
10. Lifting and alignment system according to one of claims 1 to 9, characterized in that the mounting devices essentially consist of receiving grooves (37) open at the top and tapering downwards in their cross section in a V-shaped or trapezoidal manner and that the track retaining elements (18) are provided with adapted connection plates (36) at their ends (35), with which they can be inserted in the receiving grooves (37) in a positive-locking manner.
11. Lifting and alignment system according to one of claims 1 to 10, characterized in that the pivot bearing device (20) of the lifting and alignment devices (17) is adjustable by means of an adjusting screw, adjusting spindle (34) or a positioning cylinder acting between it and the support element (19).
12. Lifting and alignment system according to one of claims 1 to 11, characterized in that the rails (24) of the track (11) can be supported on the support elements (19) in a displaceable manner in the direction of the longitudinal extension (15).
13. Lifting and alignment system according to one of claims 1 to 12, characterized in that the height adjustment elements (21) are formed by adjusting spindles or lifting cylinders.
14. Lifting and alignment system according to one of claims 1 to 13, characterized by at least one transverse stabilising element (38) engaging a lifting and alignment device (17) preferably at its support element (19), with which the lifting and alignment device (17) can be supported transversely to the longitudinal extension (15) of the track (11) on the track substructure (12) or on a retaining wall (13) extending laterally next to the track (11) or a support wall.

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