EP1560985B1 - Support for functional planes for a magnet suspension railway track - Google Patents

Abstract

There may be redundant fastenings for the stator packets (11). The running rail (1) has a flat upper surface (2) and vertical sidewalls (4,5). One of the sidewalls has its lower edge fastened to the middle of the upper surface of the inverted U-section rail (9). There are transverse reinforcing bulkheads (18). The inverted U-section rail has castellated sides with holes accommodating pairs of fastening bolts (16). The stator packets may have flat ends (22) butted together, or the ends may be dovetailed. The stator packets have downward-facing projections (28) at the bottom, with arch-shaped cutouts (13) between them.

Description

The invention relates to a function plane carrier for a magnetic levitation travel. Such a track is formed by guideways, which consist of a main carrier, which is arranged between two functional level carriers. The functional plane carriers define the travel path or the lane of the magnetic levitation vehicle or of the magnetic high-speed rail.

The non-contact support, guidance and drive system of magnetic highways uses a long-stator linear motor and is based on the principle of electromagnetic levitation. The long stator linear motor corresponds to a wound in the direction of travel electric motor. Instead of a magnetic rotating field, the linear motor generates an electromagnetic field that travels along the route. With the aid of an electronic control system, the magnetic levitation vehicle floats about 10 mm above the track. By reversing the magnetic field, the vehicle can be braked and accelerated without contact. In this case, a main component of the drive, namely the stator packs, installed in the driveway. Functional wearers have proven to be responsible for taking them over, which perform three main functions, namely the carrying, guiding and lifting of the vehicle. In addition, the functional level carrier forwards all operating loads, possibly. via mounting brackets, to the main girder, which in turn delivers the loads via substructures and foundations to the ground.

Fig. 5 shows a conventional functional plane carrier.
The function plane carrier has an upwardly facing sliding surface on which the magnetic levitation vehicle can slide when the drive, ie the power supply, completely fails. The magnetic levitation vehicle then supports itself via special sliding elements on the sliding surface and slips on this until it stops.

Side guide rails with perpendicular to the sliding surface and extending in the direction of travel effective surfaces serve the side guide of the magnetic levitation vehicle, which is mounted on the side of the guide shoe of the magnetic levitation vehicle mounted guide magnets which extend relative to the side guide rails.

In the lower part of the functional plane carrier, the stator packs are arranged, which lift and drive the vehicle. They are arranged so that they lift the vehicle over arranged in a bottom group of the guide shoe magnets by attracting the magnets. Since the smallest tolerances are required in this area, the stator packet is particularly aligned and fastened with respect to the function plane carrier.

Finally, the function plane carrier itself is adjusted and fixed to a mounting surface facing the main carrier. While steel structures have proven to be suitable for functional level members for tolerance reasons, the main beam can consist of concrete (hybrid beam construction) or of a steel construction.

As suspension for the stator packs described in DE 19735471 C suspension has proven in which a cast in plastic stator with horizontal, transverse to the direction of travel T-grooves, and the functional plane carrier has a so-called. Statorträgergurt, on its underside has two parallel running in the direction of trapezoidal rails, which are also provided with transverse to the direction of travel, horizontal T-slots. The grooves run at the same intervals as those in the stator packs.

While the grooves in the stator packs are made by already taking the individual sheets that make up the stator packs are formed, provided with the grooves corresponding punched, the grooves are milled into the Statorträgergurt according to the desired positioning of the stator. The coupling between the stator and Statorträgergurt via Nuttraversen, each having at their ends the same profile as the T-slots, so that they are respectively inserted into the corresponding grooves and connect the two components stator and Statorträgergurt in a defined position to each other. The Nuttraversen be additionally secured by screw on Statorträgergurt.

Another stator support suspension is known from DE 19931367 A, in which the Nuttraverse connected to the stator core between two parallel web flanges, which are attached to the underside of the Statorträgergurtes, bolted. An additional backup is done here via parallel to the fitting arranged dowel pins.

The task of the fuses of the two stator suspensions described above is to allow a defined and detectable vertical displacement of the stator in case of failure of the attachment, so that the operation of the track is still possible and the suspension damage can be located. This can be done, for example, via sensors distributed along the route.

The main disadvantage of this proven solution consists in the fact that the attachment of the stator via Nuttraversen or other spacers on a Statorträgergurt is relatively expensive to manufacture and maintain, and in that the usable stator height is significantly reduced by the intermediate elements.

This becomes particularly noticeable when high operating currents in the stator windings are required for acceleration are. However, the current intensity is limited by the available line cross-sections and the associated heating, as too high currents would lead to overheating of the system. Enlarged cable cross-sections are not possible due to the limited height of the stator. Stator packages with greater height can only be used if the profile of the functional plane support is increased, which could be realized only with considerable structural changes - even on the guide shoe of the vehicle itself. Also, the use of materials that can withstand higher temperatures, technical and economic limits are set.

The object of the present invention is now to provide a functional level carrier, which in particular has a larger stator packet, i. a stator package with a higher performance absorbs. Other advantages can be seen in simplifying the suspension, mounting and alignment of the stator and to compensate for the structural disadvantages of the known functional plane support at least partially.

The solution to this problem follows by a functional plane support according to claim 1. The core idea is to shift the suspension of the stator in the stator itself into it. As a result, the available space between the working plane of the stator, the so-called stator plane and the underside of the Statorträgergurts, which could theoretically extend to the sliding plane itself, be completely filled with the stator. If one uses only the existing space in conventional systems space, now stator packages are possible, which can accommodate instead of a two stator windings. As a result, higher acceleration values can be achieved without the need for larger or more expensive Statorwicklungsleitungen. Furthermore, the acceleration distances can be shortened and possible slopes of the Driveway can be increased so that an existing landscape profile can be passed konturnäher, and thus the route is simplified.

The embodiment of claim 2 and 3 relates to a stator, which is held together via jaws. Such stator packages are more economical to manufacture because they require less sealing effort. In this case, the holding piece itself serve to transmit the clamping forces.

The developments according to claim 4 and 5 relate to a sleeve, on the one hand receives the clamping forces between the jaws and on the other serves as a bearing for the inserted holding piece. The sleeve allows an adjustment of the stator with respect. Of Statorträgergurtes, in which the final bore geometry of the sleeve is set even in the adjusted state and so a particularly positionally accurate fixation can be done on the holding piece. In accordance with claim 6, the stator can be completely frictionally with respect to. The Statorträgergurts be fixed.

The claims 7 and 8 relate to a development in which the fanning of the stator laminations is prevented in particular for deep recesses for the stator windings.

The developments according to claim 9 to 11 relate to a particularly simple and advantageous for the attachment training of Statorträgergurts, the development according to claim 12 and 13 enables a redundant attachment and / or backup.

Claim 14 relates to a functional plane carrier according to the invention, in which the most important functions - carrying, guiding, driving - are integrated in only two core components. The embodiments according to claim 15 and 16 relate to a design of the stator, which in case of failure of the attachment ensures mutual support of the stator and allows a detectable, the groove width corresponding offset, which can be localized when using appropriate sensors on the road.

Fig. 1

eine perspektivische Ansicht eines erfindungsgemäßen Funktionsebenenträgers zeigt;

Fig. 2

eine perspektivische Ansicht eines Funktionsebenenträgers mit redundanter Aufhängung zeigt;

Fig. 3

einen Querschnitt durch einen erfindungsgemäßen Funktionsebenenträger in Integralbauweise und mit doppelten Statorwicklungen zeigt;

Fig. 4

die Nut und Federkopplung der Statorpakete in Fahrtrichtung darstellt; und

Fig. 5

einen herkömmlichen Funktionsebenenträger mit herkömmlicher Statorpaketaufhängung zeigt.

The invention is explained below with reference to the figures, in which

Fig. 1

shows a perspective view of a functional plane carrier according to the invention;

Fig. 2

shows a perspective view of a functional level support with redundant suspension;

Fig. 3

shows a cross section through a functional plane support according to the invention in integral design and with double stator windings;

Fig. 4

represents the groove and spring coupling of the stator in the direction of travel; and

Fig. 5

shows a conventional functional plane carrier with conventional Statorpaketaufhängung.

FIG. 1 shows a function plane carrier 1 embodied as a welded construction, which has a top flange 3 defining a sliding surface 2 on its upper side, wherein the sliding surface extends horizontally and in the direction of travel. At the outer edge of the upper belt 3 sets the vertically and in the direction of travel side guide rail 4. The mounting surface 5 is formed by a parallel to the side guide rail 4 extending inwardly offset vertical flange 6 is formed, which is provided for coupling to the main carrier 7 (see FIG. 3) with mounting holes 8. At the lower end of the vertical flange 6 Statorträgergurt 9 is fixed, which is formed from a U-profile. The side flanges 10 of the Statorträgergurts 9 take on the stator 11, which is formed by vertically and in the direction of travel extending stator laminations 12 (see Fig. 3). The stator laminations 12 are provided with punched holes, which on the one hand define the recesses 13 for the stator windings 14 (see FIG. 3) and, on the other hand, a bore 15, which pass through the stator pack 11 transversely to the direction of travel. The stator pack 11 shown in FIG. 1 is made into a block by bonding and potting the stator laminations. For attachment to Statorträgergurt serve holding pieces 16, which are designed as screws, threaded bolts, cylindrical pins, fitting screws, etc. The holding piece 16 passes through the bore 15 of the stator core 11 and corresponding mounting holes 17 in the side flanges 10 of the stator carrier belt 9.

Upper flange 3, vertical flange 6, Statorträgergurt 9 and side guide rail 4 are welded together. For reinforcement transversely to the direction of travel extending rib plates 18 and connecting webs 18 a are welded.

The connection of the full functional plane support to the main carrier via an adapter piece 19, which, as shown in Fig. 3, are poured over corresponding armature 20 in the concrete body of the main carrier 7. The adapter piece 19 can also be designed for connection to a main carrier 7, which was manufactured in steel construction (not shown).

For connection of the functional plane support 1, the outwardly-facing end faces 21 of the adapter pieces 19 are processed so that in the coupling with the mounting surface 5 of the Function level carrier 1, the lane for the magnetic levitation vehicle with the required accuracy by the two each attached to the outer sides of the main carrier 7 function level carrier 1 is defined.

The stator 11 is adjusted during assembly in addition to the function plane support 1, so that the required very tight tolerances that apply to the active surfaces 22 of the stator 11, can be met. The embodiment shown in Fig. 1 shows between the top 23 of the stator 11 and the bottom 24 of the Statorträgergurts 9 a void, which has approximately the same height as it is required for the conventional mounting via Nuttraversen (Fig. 5). This void can now be used by the fact that the stator pack 11 fills this space, and the attachment pieces 16 are displaced towards the underside 24 of the Statorträgergurts 9 back. The recesses 13 for the stator windings 14 can be made deeper, so that two stator windings 14 can be accommodated without the profile of the functional plane support must be changed. The principle of this arrangement can be seen from Fig. 2 and Fig. 3.

2 shows a further developed stator core 11, in which the stator blades 12 are pressed together between two clamping jaws 25. The clamping force is applied via clamping elements 26 which sit either on the stator core 11 and clamping jaws 25 passing through holding pieces 16 or on additional tie rods 27. The clamping force can be applied by thread or other suitable means.

In recessed recesses 13 for receiving a plurality of stator windings 14, the risk that the stator lamellae 12 in particular in the web portions 28 between the recesses 13 solve each other, be countered that the additional tie rods 27 are arranged in these web portions 28.

It is also possible to provide clamping elements (not shown) which comprise the web regions 28 in the manner of a clasp, without protruding beyond the active surface 22, and thus holding the stator laminations together. These clips can simultaneously serve to receive and fix the stator windings 14.

The attachment of the stator 11 in Fig. 2 takes place via side panels 10 a, which surround the stator 11 together with the Statorträgergurt 9 in the receiving area U-shaped. The side panels 10a have slot-like recesses, in the correspondingly extended holding pieces 16 are used. The stator packs 11 thus mounted can be additionally secured by the holding pieces are coupled to the Statorträgergurt 9 via suspensions 30, which consist for example of an eyebolt 31. The direction of force of these suspensions 30 is chosen so that it secures the stator 11 via the retaining piece 16 in a defined mounting position. In the embodiment of FIG. 2, the holding piece 16 protrudes into the eye 31a, is secured therein by a nut 32, wherein the eyebolt thread 31b is inserted into a slot 33 in Statorträgergurt 9 and fixed there with a wedge 34 and a nut 31c. The wedge serves to exert a horizontal force component on the holding piece 16, which fixes it with the stator 11 in a defined position.

FIG. 3 shows a further exemplary embodiment of a functional plane carrier 1 according to the invention, in which the functions are integrated into two main elements 35, 36. The upper flange 3 and the side guide rail 4 are combined to form an angle profile 35, while the vertical flange 6 and the Statorträgergurt 9 together with the stator packets 11 at least partially comprehensive side flanges 10 to a T-like Profile 36 are summarized. This T-like profile is also executable without the side flanges 10. In this case, the side panels 10a and / or the suspensions 30 (see Fig. 2) may be attached to the substantially flat stator support belt 9. Other profile geometries are possible. For example, top flange 3, vertical flange 6 and stator carrier belt 9 can be designed as a double-T carrier (not shown), which is closed by a side guide rail 4 on its side forming the roadway edge. For reinforcement ribbed plates 18 and webs 18a are used in these versions.

Fig. 3 shows a further particularly advantageous embodiment of the invention. Again, a stator 11, the fins 12 are compressed via two clamping jaws 25, shown. The clamping force is applied here via a sleeve 15 passing through the sleeve 37, which is welded at its ends to the clamping jaws 25. It may also be provided that the sleeve 37 is welded at one end to a jaw 25, while it is secured at the other end via a collar and a corresponding recess in the other jaw 25 axially in the direction of the bore 15. The suspension in Statorträgergurt 9 via a bolt 38 which passes through the sleeve 37 and the mounting holes 17. Particularly simple and safe, the assembly of the bolt 38 can be effected in that this cooled (for example, by liquid nitrogen) is inserted with undersize and after heating to the ambient temperature with the sleeve 37 and / or the holes 17 forms a press fit. This results in a frictional connection between the bolt 38 and Statorträgergurt 9, 10 and between the bolt 38 and sleeve 37. There are no further fasteners required. Even an operational heating of the stator does not loosen the press fit, since the bolt and stator heat uniformly.

The sleeve 37 allows, with appropriate design, a post-processing of its inner surface after the stator 11 is assembled, since, for example, when rubbing, the stator blades 12 are not damaged, and so after adjustment of the stator 11 in its installed position, the mounting holes 17 and the inner Passage through the sleeve 37 can be made in one go, and then only the bolt 38 is used. It is advantageous if both the mounting holes 17 and the passage through the sleeve 37 only finished, for. be wiped out or milled up.

4 shows a perspective view of two stator packets 11 arranged one behind the other in the direction of travel, which are each formed with a transverse groove 39 or a transverse spring 40 at their front ends. For clarity, only the recesses 13 are shown for the stator windings. Mounting holes, jaws, or stator blades are not shown. The tongue and groove connection between individual stator 11 provides additional security in the failure of the attachment of a stator 11. In this case, it depends in the groove 39 and in the spring 40 of the adjacent stator. The stator core 11, in which the suspension has failed, then depends on the vertical component of the gap width b offset in the functional plane carrier 1. This offset can be detected by appropriate sensors, which then deliver a locatable signal through which a defective stretch can be detected. In this embodiment, a gap width b between 0.5 and 10 mm has been found to be particularly advantageous. The geometry of the tongue and groove joint is not limited to the trapezoidal configuration shown in FIG. Any profile can be chosen that allows a positive coupling in the vertical direction of adjacent stator packets.

Claims (16)

1. A functional beam for a magnetically levitated travel way, wherein the one travelway defining functional plane beam (1) comprises a slide surface (2), a lateral guide flange (4), a stator beam (9, 10, 10a) which carries a stator packet (11) consisting of vertical and travel directed stator lamellas (12) and a mounting surface (5) serving for coupling onto a main beam (7), characterised in that the stator packet (11) has a boring (15) penetrating said lamellas (12) essentially perpendicularly and which stator packet (11) is bound together on the stator beam (9, 10, 10a) by a retainer member (16, 38) penetrating said boring (15).
2. A functional plane beam in accord with claim 1, characterised in that the stator packet (11) is pressed together with a specific clamping pressure between two clamping plates (25), the plates of which run essentially parallel to the stator lamellas (12) and wherein the retainer member (16, 38) likewise penetrates the clamping plates (25).
3. A functional plane beam in accord with claim 2, characterised in that the clamping force is transferred to the clamping plates (25) by means of clamping elements (26) placed on the bolt (16).
4. A functional plane beam in accord with claim 2 or 3, characterised in that the clamping force is directed by a shell (37) running coaxially to the bolt (16, 38), which said shell penetrates the stator packet (11) and the clamping plates (25).
5. A functional plane beam in accord with claim 4, characterised in that the shell (37) is welded with a clamping plate (25).
6. A functional plane beam in accord with one of the foregoing claims characterised in that the retainer member (16, 38), during the time of assembly, forms a compression bonding with the shell (37), with the stator packet (11) and with the clamping plates (25).
7. A functional plane beam in accord with one of the forgoing claims, characterised in that the stator packet (11) in the area of the projections (28) between the recesses (13) for the stator windings (14) comprises additional clamping elements.
8. A functional plane beam in accord with claim 7, characterised in that the clamping elements encompass the projections (28) in a cliplike manner and/or bind onto the stator lamellas (12) and, if required, also onto the clamping plates (25) in the area of the penetration of the tie-bars (27).
9. A functional plane beam in accord with one the foregoing claims, characterised in that the stator beam (9, 10, 10a) is constructed as a U-shaped structural member, and the bolt (16, 38) penetrates the two legs (10) thereof.
10. A functional plane beam in accord with claim 9, characterised in that the retainer member (16, 38) forms a press-fit with the stator beam (9, 10, 10a).
11. A functional plane beam in accord with claim 9, characterised in that the retainer member (16, 38) engages itself in a slotlike excision in the U-shaped structural member (10, 10a).
12. A functional plane beam in accord with one of the claims 9 to 11, characterised in that the retainer member (16, 38) is bound to the functional plane beam (1) by an additional suspension (30, 31a, 31b, 31c, 32, 33, 34).
13. A functional plane beam in accord with claim 12, characterised in that the additional suspension (30, 31a, 31b, 31c, 32, 33, 34) is so designed, that it secures the retain member (16, 38) in its inserted position.
14. A functional plane beam in accord with one of the foregoing claims characterised in that the beam (1) is constructed from essentially two rolled structural shapes (35, 36), in particular incorporating a structural angle member (35) which incorporates the slide surface (2) and the lateral guide flange (4) as well as a T-shaped member (36), which carries the mounting surface (5) and the stator beam (9, 10).
15. A functional plane beam in accord with one of the foregoing claims, characterised in that in one end face of a stator packet (11), a horizontal groove (39) is constructed running transverse to the direction of travel and in the opposite end face thereof, a horizontal tongue (40), positioned transverse to the direction of travel, so that, with the sequentially placed stator packets (11) the tongues (40) in the said grooves (39) engage the respectively adjacent stator packets (11).
16. A functional plane beam in accord with claim 15, characterised in that, between the groove (39) and the tongue (40) is a gap having a width b, between 0,5 and 10 mm.

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