DE102006054818A1 - Carrier element, bearing arrangement and adjustment arrangement for a flexure arrangement - Google Patents

Abstract

The present invention relates to a carrier element (4) for an elastically bendable bending diverter section (2b) for forming (since the carrier element itself may also be the guideway) of a travel path (2) extending in the longitudinal direction of the carrier element (4) with upper and lower chords (5 , 6). Upper and lower belt (5, 6) are coupled to each other via a web-like web (7), wherein the web over a plurality of separate connecting portions (11, 12, 13, 14) with the upper and / or the lower flange (5, 6) is connected. The invention further relates to a bearing arrangement (20) for a flexure arrangement for guiding a track section (2b) in an adjustment plane (7), wherein the bearing arrangement (20) is arranged to be rotatable relative to a support element (4) in the adjustment plane and displaceable transversely to the adjustment device, so that when adjusting the Fahrwegabschnitts (2b) on the bearing assembly (20) in the adjustment no forces are transmitted. Furthermore, the invention relates to an adjustment arrangement for a flexure arrangement for adjusting and / or fixing a Fahrwegabschnitts (2b) in an adjustment position with 27), via which an acting in the Verstellbene torque can be applied, wherein the adjustment arrangement is formed, a defined bending line (28 ) and / or to fix or adjust the adjustment position of the carrier element (4).

Description

The The present invention relates to a carrier element for a elastically bendable bending diverter section for receiving an in Longitudinal direction of the support element running track. The carrier element has a top and bottom chord, which has a pleated-like Bridge are coupled together.

A steel girder construction, in which the upper girder is connected to the lower girder via a single, fold-like web, is known from US Pat FR 1.353.612 known. The folds are transverse to the carrier longitudinal direction. The folded web is continuously welded at its upper and lower edges with the upper and lower flange. There are proposed different designs of the pleat-like web, namely: a corrugated design, a zigzag-shaped folded version and rectangular and trapezoidal designed designs.

In bridge construction carriers are used in hybrid construction, in which upper and lower chords made of steel or prestressed concrete are interconnected via trapezoidally folded steel webs, so that these components form a box-shaped overall carrier cross-section. Again, the folds are transverse to the longitudinal axis and about in the direction of the expected main loads (usually vertical). The coupling with the concrete components takes place via so-called belt plates, which are welded on the web side with the web edges and the belt side - possibly via additional elements - anchored in the concrete matrix (see. André Müller: "Hybrid Construction with Folded Steel Bars" in Innovations in Construction - New Developments in Bridge Construction, Proceedings 5th Leipzig Symposium "Innovations in Construction: New Developments in Bridges", Leipzig Nov. 2004 ).

For modern, track-bound traffic and transport systems (VTS) special connection constructions (VBK) are required for the mutual connection of a section of track with two or more further sections. In modern monorail systems and magnetic levitation railways, in which the vehicle embraces the track, so-called flexures are in use, which have a fixed and a free end. The free end is optionally adjustable between corresponding terminal ends. For this purpose, this free end is adjusted substantially transversely to the direction of travel, wherein the corresponding support portion is elastically deformed or bent. Such flexures made of steel beams for magnetic highways are for example from the DE 44 16 820 C2 and the DE 34 20 260 known. A constructive compromise between opposing requirements must be found. On the one hand, a high rigidity of the track is required for operational reasons, on the other hand, the lowest possible stiffness should facilitate the bending of such a beam in the adjustment direction. Other types of flexures are from the CH 386 467 and DE 1 140 219 known.

From that It is an object of the present invention, a carrier element for one To provide bending points in the vertical direction (Z-direction) has a relatively high bending stiffness to predominantly vertically acting Safely absorb operating loads. At the same time a high torsional stiffness be given, against torsional loads, the operational about a pointing in the direction of travel longitudinal axis (X direction) of the support element occur. After all should the horizontal bending stiffness transverse to the direction of travel (Y-direction) be reduced to the adjustability of such a support element to facilitate.

In conventional flexures, the adjustable (elastically bendable) beam carrier is movably supported on corresponding switch bases. The carrier itself is often designed as a hollow box carrier. Known flexures are pivoted via electromechanical or hydraulic linear drives. To fix the end position are used, for example, via the toggle lever fixed actuating arms, braked drive motors and / or self-locking gear, or appropriately controlled or regulated hydraulic units (see. Gert Schwindt and Peter Jürgen Gaede: "The Schnellfahrweiche" in Maglev Transrapid - The New Dimension of Travel, Darmstadt 1989 " ).

For additional influence on the bending line and thus the curvature of the switch carrier, it is for example from the DE 44 16 820 C2 and the DE 34 20 260 C2 It is known to apply additional moments about the vertical Z axis via lugs extending parallel to the switch carrier. In order to realize a crossing of the turnouts even at high speeds, route crossings are provided, in which a straight line in a Klotoide or Sinoid, this in a constant radius and this finally opens again via a Klotoide or Sinoids in a straight line. Such paths prevent jerky lateral acceleration.

at usual Adjustment and storage systems for Biegeweich in magnetic railway tracks occurs high wear more essential Components on. The combination of high forces with low adjustment and guide tolerances and low clearance cause constraints that cause overload damage.

Another task can therefore be gese hen to improve the bearing or Einstellanordnung.

These Tasks are solved by the subject matter of claim 1.

The Carrier element according to the invention for one elastically bendable flexural soft section, in the upper and lower belt over a or a plurality of fold-like webs coupled together are characterized by the fact that the bridge over several connecting areas connected to the upper and / or lower chord. In contrast to the known continuous connection between bridge and upper and lower belt allow separate connection areas the optimal Utilization of the properties of a folded-like web. By design, such webs take in the direction across the folds or edgings only small forces (in a typical support element this corresponds to the X-axis). For vertical installation in a carrier element (the Z-axis runs in the direction of the canted lines), they provide one around the Z-axis high flexibility. Are the bars complete? connected at its edges with the upper and lower belt, so goes this flexibility at least lost in the border areas. When bending such carriers (here around the Z-axis) therefore occur in the peripheral areas large local Tensions. This is especially true when materials with different properties such as steel and concrete are combined. The formation of a carrier element according to claim 1 therefore allows a high bending stability or rigidity in the Z-direction (i.e. around the transverse to the longitudinal axis extending Y axis) and a comparatively increased flexibility in the Y direction or about the Z axis. At the same time, a high torsional stability remains around the X-axis in beam longitudinal direction receive. Even the raised Shear capacity the carrier with folded bridges opposite such carrier with flat web plates remains with separate connection areas receive. So it becomes a carrier provided especially for such Flexible diverter is suitable.

In The development according to claim 2, the connection areas in longitudinal direction the carrier element arranged and / or arranged pointwise. This design increases the flexibility around the Z-axis. A box section according to claim 3, wherein the upper and lower chords are connected by two webs, allows an additional increased Torsional rigidity.

The Development of the invention according to claim 4, in which the connection areas by special coupling elements realized, allows an optimizable connection to the and bottom strap. This is especially true when different Materials should be combined. According to claim 5, these are Coupling elements designed as a top plate or coupling pin, the are particularly well anchored in a concrete matrix.

According to claim 6 is the carrier element designed in hybrid construction, in which the upper belt made of a reinforced concrete or prestressed concrete material is. This can either be connected to a corresponding trough be in which the bridge and the lower chord usually from a Made of steel material; but it is also a good idea to and bottom flange made of reinforced concrete or prestressed concrete and these via webs from a steel material to connect with each other.

to increase lateral flexibility can Upper and / or lower flange have recesses in the edge region. It can the edge regions between the recesses as tracking elements be formed (claim 7).

According to claim 8 can such tracking elements however, also segmented on the lateral side regions of the upper belt be arranged. Such a design allows a substantial decoupling of support element and tracking elements. The tracking function affected the flexibility the carrier element little or not at all.

claim 9 relates to a flexure arrangement with an adjustable landing gear section, the several support elements according to the invention includes. For manufacturing or assembly technical reasons, it may be advantageous to assemble a chassis section from sub-segments. This simplifies transport and assembly and facilitates mass production the support elements, which are assembled so individually or preassembled into assemblies.

The Bearing arrangement according to claim 10 allows a constraint-free Adjusting the travel section and provides a simplified Auflagerung the adjustable track section. The bearing arrangement offers in the Adjustment level two degrees of freedom: It is in the adjustment planes rotatably arranged and displaceable transversely to the adjustment. So that can guides for example Plain bearing skids or for the rolling bodies from rolling or wheel bearings with higher Tolerances made and assembled. Constraints, as at exactly out Adjustment paths occur (for example, in guide rails) are largely eliminated. The bearing assembly also takes thermally induced shape and length changes free from tension.

The Adjustment arrangement according to claim 11 to 13 allows an improved Fixation and adjustment of the flexure arrangement in the desired end positions.

To Claim 11 is an attacking on a support element actuator provided, which is an acting in an adjustment plane moment on the carrier element applies. This moment can be used simultaneously to set a defined bending line exactly or the adjustment position the carrier element in the desired manner to fix. It facilitates the provided according to claim 12 cantilever the application of the intended moment. The control elements can with lower restoring forces exert the required moment on the appropriately designed cantilever.

According to claim 13, the cantilever is also designed as a so-called support claw. This not only takes the moment acting in the adjustment plane the Z-axis), but carries also a bearing arrangement for guiding of the chassis section in the Verstellbene, which already has degrees of freedom specified above and absorbs the vertical loads.

So are the adjustment process, the forces as possible and without expensive guidance should be feasible, and the setting, fixing or adjustment on the carrier element or functionally separated at the track section in its end position.

The Adjustment elements act independently separated from the setting or fixing elements. This is robust simple components for adjustment usable (here must be relative size Stretching with big ones Overcome forces while) For setting or adjusting compact, low-maintenance units used are applied with which the required adjustment and fixing forces become.

About the However, in claim 13 specified supporting claws is at the same time functional separation a constructive combination of forces-transmitting Components can be realized. The support claw serves as a cantilever, which absorbs the setting and fixing moments. On the other hand, she allows through the transverse to the longitudinal direction of the carrier element running structure a big one Bearing spread, which reduces vertical bearing forces, from the moment around the X axis.

claim 14 concerns a track-bound transport and transport system the claimed features are realized.

embodiments The present invention will be described below with reference to the drawings explained. It shows

1a -C Schematic diagrams of an elastic bending device arrangement in different views and positions,

2 a schematic side view of a carrier element according to the invention with different web / Gurtverbindungsabschnitten,

3 a schematic cross-sectional view of a carrier element according to the invention,

4 a schematic cross-sectional view of a carrier element according to the invention, in which different biasing systems are recognizable,

5 a detailed perspective view of the area K from 2 .

6 a detailed perspective view of the area P from 2 .

7 an inventive carrier element with recesses for increasing the flexibility,

8th an inventive carrier element with modular attachments,

9a and 9b a schematic representation of a top view of a support member with a setting and bearing assembly in the straight ahead position ( 9a ) and turn-off ( 9b ), and

10 a cross-sectional view through the in 8th illustrated bearing assembly.

The 1a to 1c show a monorail system for a track-bound traffic and transport system (VTS). Shown is a turnout section of a driveway 2 , which has a first travel section 2a over a switch section 2 B to a second straight traveling section 2c ( 1b ) or alternatively to a branching travel section 2d leads ( 1c ). The illustrated roadway 2 is shown in an elevated construction, in which the track sections 2a to 2d on stands 3a . 3b rest. Here are the stands 3b made so broad that they the route section 2 B record in both positions. The travel section 2 B forms together with the uprights 3a and 3b and the travel sections 2a . 2c and 2d a so-called Biegeweiche. The adjustable travel section 2 B is determined by a force F ( 1c ) elastically bent so that the free end of the in 1b shown location in the in 1c shifted position is shifted. The force f is about one or more control elements, not shown, which on the travel section 2 B attack, upset. The travel section 2 B is constructed of one or more support elements.

2 shows a schematic view of such a support element 4 of the route section 2 B , The illustrated carrier element 4 , whose longitudinal axis runs in the X direction, has a top flange 5 and a bottom strap 6 on, over two jetties 7 connected to each other.

3 schematically shows possible cross sections of the support element 4 , This form upper chord 5 , Lower chord 6 and the footbridges 7 a box profile. upper chord 5 and bottom strap 6 are made of steel or prestressed concrete elements, while the webs 7 are made of a steel material. The cross section may be formed either trapezoidal or approximately rectangular. In this embodiment, the webs with 7 ' denoted and the (in the Y direction) wider executed lower chord 6 through dashed contours 6 ' shown.

The bridges 7 . 7 ' are formed like a fold, wherein the can direction or the fold course vertically (approximately in the Z direction) between upper and lower chord 5 and 6 runs.

In addition to the illustrated hybrid construction (concrete-steel composite), there are also versions in which the support member is formed entirely of steel, ie also upper and lower flange 5 . 6 are made of steel. Alternatively, one of the bars 7 and the lower chord 6 formed steel trough with a top chord 5 be made of steel-concrete material. There are also versions where the webs 7 made of a concrete material (for example ultra-high-strength concrete).

4 shows a schematically illustrated cross section, in the upper and lower chord 5 . 6 are designed as prestressed concrete elements. It can internal clamping elements 8th be provided or external clamping elements 9 that are outside the actual components (upper chord 5 , Lower chord 6 ) via appropriate lying inside the box section support brackets 10 be guided. External or internal clamping elements 9 . 10 prevent undue tensile stresses in the concrete matrix of concrete components and increase their load capacity. In the present case, in particular, the vertical load capacity in the Z direction is increased, since the highest operating loads act in this direction (vehicle weight, dead weight).

The connection of the folding bridges 7 to the upper or lower belt 6 takes place in several separate connection areas 11 and or 12 , in the 2 through thick lines 12 or points 11 at the upper and lower edges of the bars 7 Marked are.

The 5 and 6 show perspective views of in 2 marked areas K and P. 5 shows the connection of a bridge 7 over a headstock 13 , which in turn in 5 not shown upper flange 5 is anchored. This can be the top plate 13 be firmly anchored in the concrete matrix via additional anchoring elements. The headstock 13 is continuous or interrupted with the web wheel 7c connected (eg welded).

6 shows the coupling of the bridge 7 with several separate head plates 14 , Here is the jetty 7 with the head plates 14 only over the web edge section extending in the longitudinal direction of the carrier element 7a with the head plates 14 and thus with the upper belt 5 connected. The transverse to the longitudinal direction of the support element 4 running web edge sections 7b are not with a headstock 14 or the upper belt 5 coupled. This design increases the flexibility of the carrier element 4 in the Y direction, as when adjusting one of one or more support elements 4 formed travel section 2 B from the straight-ahead exhibition ( 1b ) in the branching position ( 1c ) the required force F is reduced, in comparison to a carrier in which the webs 7 over the entire length of the carrier element 4 according to 5 - So continuously - with the upper and lower belt 5 . 6 are connected.

The regional or selective connection of the bridges 7 to the upper or lower belt 5 . 6 facilitates deformations in these transitional areas caused by stress-induced creep and shrinkage, reduces local stresses and thus increases flexibility. According to 2 the point connection is provided only in a central region, in which when bending the support element 4 the strongest deformations are to be expected. Here is a high degree of flexibility of the web edge sections extending transversely to the longitudinal direction 7b especially desirable. In the two end regions of the carrier element 4 is a continuous connection area depending on the level of stress 12 (see also 5 ) desirable to increase the stability.

In other embodiments, punctiform connection areas are distributed over the entire carrier length 11 intended. It is also possible, some sections connecting areas 12 provided. The design of the connection areas 11 respectively. 12 allows an influence on the bending line, so that driving technically particularly favorable routes are possible without the train guide influencing bending line would have to be influenced by additional external moments or forces.

The 7 and 8th show versions of the upper flange 5 , which are particularly advantageous for the design of such Monorailsystemen in de NEN on the edges of the upper belt tracking elements are formed, which are encompassed by a corresponding vehicle.

Here are according to 7 recesses 15 in the border areas 16 provided the upper girth. This design increases the flexibility of a carrier element 4 in the Y direction. In the case that the recesses 15 over the connection area of the bridge 7 out into the interior of the upper or lower girth 5 . 6 run, so are these recesses 15 ideally between the head plates 14 arranged. This is on the left in the 7 indicated.

8th shows an embodiment in which on a relatively narrow upper chord 5 via support arms 17 segmented tracking elements 18 are arranged. This design allows for a relatively narrow top chord 5 having good bending properties in the transverse direction, the realization of a comparatively wide track path on the tracking elements 18 without adversely affecting the bending properties.

The 9 to 10 show in a schematic representation bearing arrangements 20 leading to the route section 2 B from a straight-ahead exhibition ( 9a ) into a branching position ( 9b ) are suitable. The 9a and 9b show a schematic view from above and the 10 one in the 9a drawn cross-sectional view S: S.

At the travel section 2 B is in the range of a stand 3b on both sides of the support element a cantilever 21 trained firmly with the travel section 2 B connected is. On the support arm 21 is a rolling element 22 attached, that via a journal 23 ( 10 ) rotatable about the support arm 21 is arranged. This is through the arrows 24 in 9a indicated. The rolling element 22 rolls on one with the stand 3 ' connected taxiway 25 and is on this in the direction of the arrow 26 displaceable. At rest of the route section 2 B The vertical loads occurring over the track section 2 B , the support arms 21 , the journal 23 , the rolling element 22 over the taxiway 25 in the stand 3b ablated.

The mobility of the rolling element 22 on the taxiway 25 in the direction of the arrow 26 or the straight line of freedom in the construction of the roller element 22 allow it, temperature-induced changes in length of the route section 2 B without forcing forces between taxiway 25 and rolling element 22 Act.

When adjusting the track section 2 B in the in 9b shown position prevents the rotation of the rolling element 22 in the direction 24 and the displacement in the direction 26 Forcing forces between taxiway 25 and rolling element 22 , The through the top 27 of the taxiway 25 Defined adjustment level thus remains free of forces in the X and Y direction. This can taxiway 25 and rolling elements 22 be comparatively roughly tolerated to each other in the adjustment.

For exact positioning of the travel section 2 B in its final position (see 1c ) engage the ends of the support arms 21 through arrows 27 Symbolized control elements, which in the adjustment plane a moment on the track section 2 B Apply in the adjustment plane, namely around the vertical Z-axis. Such control elements 27 can in several areas of the travel section 2 B be provided to the bend line 28 and thus the course of the route section 2 B to influence so that on the one hand, the free end 29 (please refer 1b and 1c ) exactly with the track area 2d Aligns and the bend line 28 the desired routing corresponds.

In high-speed traffic and transport systems, it is desirable to have tracks - especially when cornering - that do not cause sudden lateral accelerations. In the embodiment described above, therefore, the actual adjustment takes place independently of setting, fixing and / or adjusting in a desired end position. In this case, in the illustrated embodiment, the bearing assembly 20 on the same support arms 21 arranged, at which also the adjusting elements 27 attack. In other embodiments, these bearing arrangements 20 for adjustment completely independent of the points of attack for adjustment and adjustment. To improve the load transfer are in 10 alternative reinforcement ribs 30 . 30 ' arranged, in particular the transmission of vertical loads between the landing gear section 2 B and the support arm 21 improve.

The in connection with the 9a . 9b and 10 described bearing arrangement 20 and those with the arms 21 interacting control elements 27 formed actuator assembly is in 10 in connection with a carrier element 4 shown at the folding webs 7 with a top strap 5 and a bottom strap 6 are connected. Both the bearing arrangement 20 as well as the actuator assembly may be formed on any suitable for flexures support elements.

Further Variations and embodiments result for the person skilled in the art within the scope of the following claims.

Claims (14)

Carrier element ( 4 ) for an elastic biegba bending soft portion of a longitudinal direction of the support element ( 4 ) extending track, in which an upper and a lower chord ( 5 . 6 ) via a folded-like web ( 7 ) are coupled together, wherein the web ( 7 ) over several separate connection areas ( 11 . 12 ) is respectively connected to the upper and / or lower chord. Carrier element ( 4 ) according to claim 1, wherein the connection areas ( 11 . 12 ) are arranged in the longitudinal direction of the carrier element and / or pointwise. Carrier element ( 4 ) according to claim 1 or 2, wherein upper, lower chord ( 5 . 6 ) and two bridges ( 7 ) form a closed box profile. Carrier element ( 4 ) according to one of the preceding claims, in which the connection areas ( 11 . 12 ) via coupling elements ( 13 . 14 ) with the lower or upper belt ( 5 . 6 ) of the carrier element ( 4 ) are connected. Carrier element ( 4 ) according to claim 4, wherein the coupling elements ( 13 . 14 ) as a head plate ( 13 . 14 ) and / or coupling bolts are executed. Carrier element ( 4 ) according to one of the preceding claims, which is designed in hybrid construction, wherein the web ( 7 ) and / or lower chord ( 6 ) are formed of steel material and the top flange ( 75 ) made of a reinforced concrete or prestressed concrete material. Carrier element ( 4 ) according to one of the preceding claims, in which the upper belt ( 5 ) in a lateral over the bridge ( 7 ) projecting edge region ( 16 ) Recesses ( 15 ), which reduce the lateral bending stiffness. Carrier element ( 4 ) according to one of the preceding claims, in which on the lateral side regions of the upper belt ( 5 ) Guidance elements ( 18 ) are arranged, which in the longitudinal direction of the support element ( 4 ) are formed segmented. Flexible bending arrangement for a track-bound traffic ← and transport system, in which an adjustable travel section ( 26 ) by a plurality of carrier elements ( 4 ) is formed according to one of the preceding claims. Bearing arrangement ( 20 ) for a flexure arrangement according to claim 9 for guiding the travel section ( 2 B ) in an adjustment plane, the bearing arrangement ( 20 ) to a support element ( 4 ) is arranged rotatably in the adjustment plane and displaceable transversely to the adjustment, so that when adjusting the Fahrwegabschnitts ( 2 B ) via the bearing arrangement ( 20 ) no forces are transmitted in the adjustment plane. Adjustment arrangement for a flexure arrangement according to claim 9 for adjusting and / or fixing the travel path section (FIG. 2 B ) in an adjustment position with an actuating element acting on the carrier element ( 27 ), via which a moment acting in the adjustment plane torque can be applied, wherein the adjustment arrangement is designed to define a defined bending line ( 28 ) and / or the adjustment position of the carrier element ( 4 ) to fix. Adjusting arrangement according to Claim 11, in which the actuating element ( 27 ) at a transverse to the longitudinal direction of the track section ( 2 B ) arranged cantilever arm ( 21 ) is arranged. Adjusting arrangement according to claim 12, wherein the cantilever arm ( 21 ) as Auflagerkräfte receiving Tragpratze ( 21 . 30 . 30 ' ) is formed, which a bearing assembly ( 20 ) for guiding the route section ( 2 B ) carries in an adjustment plane, the support bracket ( 21 . 30 . 30 ' ) is arranged rotatably in the adjustment plane and displaceable transversely to the adjustment, so that when adjusting the Fahrwegabschnitts ( 2 B ) via the bearing arrangement ( 20 ) no forces are transmitted in the adjustment plane. Track-bound transport and transport system with a carrier element ( 4 ) according to one of claims 1 to 8, a bearing arrangement ( 20 ) according to claim 10 and / or an adjusting arrangement according to one of claims 11 to 13.