EP2890849B1 - Slide chair for a rail switch - Google Patents

Description

The present invention relates to a sliding chair for a rail switch, a rail switch with at least one such slide and a heater for a rail switch.

Rail systems for rail vehicles are particularly exposed to the weather. In particular rail devices with moving parts such as railroad switches can be limited in their ability to function, especially in cold and / or ice and snow. Such restrictions can lead to significant disruptions to rail traffic, including the loss of train connections. Therefore, railroad switches are usually equipped with heaters in order to heat them in bad weather can. Due to the complexity of the structure and the large number of different components of a rail switch is to pay attention to a suitable arrangement of heating components in order to achieve a desired heating success can. The WO 2009/109664 A1 discloses a railway switch with such a heater. An object of the present invention is to design a sliding chair of a rail switch in such a way that a compact and efficient heating of components of the rail switch is possible.

This object is achieved by a sliding chair according to claim 1. Advantageous embodiments and further developments emerge from the dependent claims.

A sliding chair for a rail switch is described. The sliding chair comprises a base plate, by means of which the sliding chair can be fixed, and a Gleitstuhlplatte, which is fixedly connected to the base plate. In the base plate, a Heizfluidführungskanal is formed. Thus, the slide chair can be designed such that on the one hand fulfills its normal function as a sliding chair and on the other hand can act as part of a heating device. The Heizfluidführungskanal is provided for heat transfer to the sliding chair, in particular to the base plate, wherein the heat transfer can be effected in particular via a heat-conducting contact. For example, it can be provided that the Heizfluidführung and / or the Heizfluidführungskanal is on the one hand in heat-conducting contact with a heating fluid or can be brought, for example via an inner wall, on which the heating fluid is able to flow along. Thus, it can serve as a heater for the sliding chair. In addition, the Heizfluidführungskanal allows a space-saving and protected guiding of heating fluid through the Gleitstuhl. The base plate may be fixable to a suitable base device or underlay of the rail switch, in particular a threshold, or at another earth-fixed reference point. Specification of the slide chair may in particular mean that the base plate is anchored with respect to the ground and / or the base and / or secured to a suitable fixing device, such as by screwing, Einbetonieren, nails or other fastening device or anchorage. A Gleitstuhlplatte may be provided to set a rail of the rail switch, in particular a jaw, against a shift. For this purpose, the Gleitstuhlplatte is firmly connected to the base plate, such as by a suitable screw and / or welding. The base plate and / or the Gleitstuhlplatte may generally be made of a metallic material, such as a steel. It is conceivable that base plate and / or Gleitstuhlplatte and / or Gleitstuhl are made of a cast material. The Heizfluidführungskanal according to the invention is adapted to receive a heating fluid and to lead through the base plate. The Heizfluidführung is formed directly in the base plate, such as through one or more holes. In a variant, a conduit may be received in the base plate, in particular be poured. The Heizfluidführungskanal and / or the Heizfluidführung may have one or more fluid ports through which a heating fluid is supplied and / or can be removed. Such connections can be arranged or arranged in or on suitable openings in the base plate. Generally, in the context of this description, a rail switch may be a switch. A rail switch may have at least one rail pair of stock rail and tongue rail. A sliding chair may be provided to fix a stock rail on its side facing the tongue rail. It is conceivable that a tongue switch is able to move on the slide chair. In particular, it can be provided that the Gleitstuhlplatte is designed to store the Zungenweiche displaced. The Gleitstuhlplatte can be attached directly or indirectly above the base plate to this. In particular, it can be provided that the Gleitstuhlplatte not substantially can move relative to the base plate and / or fixed relative to the base plate fixed or fastened. be educated. It is generally conceivable that the Gleitstuhlplatte is positively mounted on the base plate, or that the Gleitstuhlplatte is materially formed with the base plate. The Heizfluidführungskanal may be poured into the base plate and / or milled and / or drilled. It is conceivable that in the Heizfluidführungskanal a Heizfluidführungsrohr installed, in particular cast. A Heizfluidführungsrohr may generally be made in particular of a suitable stainless steel. A Heizfluidführung recorded in the Heizfluidführungskanal, in particular a tube or a hose, can be led out via an opening in the base plate or through a plurality of openings in the base plate from the base plate to provide about a arranged outside the sliding chair or can be arranged connection option. A heating fluid conduit may generally include one or more ports for connection to a heating fluid conduit. It is conceivable that a heating fluid guide comprises a line, a plurality of lines or a flow field, via which in each case a heating medium can be guided or can be guided. A Heizfluidführungskanal may be formed for receiving a Heizfluidführung and / or even as Heizfluidführung. A heating fluid may generally be any fluid which is suitable as a heating medium for a heating device. For example, a heating fluid may comprise a liquid and / or a gas, such as water, an oil, a water / glycol mixture, superheated steam and / or combustion exhaust gases. In general, a Heizfluidführung may be suitably fixed or attachable in the Heizfluidführungskanal and / or on the slide chair and / or on the base plate, such as by screwing and / or gluing and / or jamming and / or welding and / or soldering and / or casting or pouring. It can generally be provided that the heating fluid guide channel has channel openings, for example at least or exactly one inlet opening in the base plate and at least or exactly one outlet opening in the base plate. The channel openings may be lateral openings of the base plate. Between the openings of the Heizfluidführungskanal may be formed with a Heizfluidführung and / or be included a Heizfluidführung. It can be provided that the Heizfluidführungskanal between the output port and the input port in the base plate does not describe a straight line, but is formed in a bent or angled shape. In this case, a plurality of bends and / or bends can be provided. The shape of the Heizfluidführungskanals may be determined taking into account a desired heat transfer and / or structural requirements of the sliding chair. A heat transferring contact may be a thermally conductive contact. It is conceivable that a thermally conductive contact between two components, such as a Heizfluidführung and the base plate and / or the Heizfluidführungskanal provided by direct contact of the components or is available. Alternatively or additionally, a heat-conducting contact between two components can be provided or providable via one or more heat-conducting elements arranged between these components. In this case, a heat-conducting element can have good heat-conducting properties and can comprise, for example, a thermal compound and / or a metallic element, such as a metal layer or a film. It can be provided, for example, that at least in places a heat conducting paste is arranged or can be arranged between a heating fluid guide, for example a pipe, and the base plate and / or the heating fluid guide channel. In general, it may be expedient if components provided for a heat-conducting contact themselves have good heat conduction properties and consist for example of metallic materials and / or include such. Different components may have different materials. In a variant, the sliding chair comprises a rail holding device. The rail holding device can be designed to fasten a rail, in particular a stock rail, to the sliding chair. The rail can be fastened or fastened to the sliding chair via the rail holding device. It is conceivable that the rail holding device is arranged such that a rail attached to it is received or receivable between the rail holding device and the Gleitstuhlplatte. In particular, the rail can be clamped or clamped by the Gleitstuhlplatte on its side opposite the rail holding device side. The rail holding device may have a screw connection and / or a bolt device, by means of which the rail can be fastened or fastened.

It can be provided that the Heizfluidführungskanal is adapted to receive a Heizfluidführung. Such a heating fluid guide can be formed, for example, by a hose and / or a tube, which can be inserted into the Heizfluidführung. It is conceivable that hose and / or tube are cast into the base plate. It is also conceivable that the tube and / or the hose are inserted into the heating fluid guide and are attached thereto and / or in it. For example, a tube can be inserted as Heizfluidführung in the Heizfluidführungskanal and connected via a thermal grease to the Heizfluidführungskanal or glued thereto. It is conceivable that a clamp device and / or a web device is provided to hold a Heizfluidführung within the Heizfluidführungskanals.

The Heizfluidführungskanal can be arranged on the Gleitstuhlplatte opposite side of the base plate. In particular, the Heizfluidführungskanal can be arranged below the base plate. This allows a Heizfluidführung lead close to the ground.

In a development, the Heizfluidführungskanal may have an open profile. By such a profile, a Heizfluidführung can be easily inserted into the Heizfluidführungskanal. In addition, it is easier to remove a heating fluid duct via an open profile, should this be necessary for maintenance or repair purposes.

In particular, it can be provided that the profile is open towards the underside of the base plate. Thus, a structural integrity with respect to the Gleitstuhlplatte is impaired as little as possible and allows easy access to the Heizfluidführungskanal.

In the Heizfluidführungskanal may be added or received as Heizfluidführung a hose or pipe for guiding a heating fluid. The Heizfluidführungskanal can be dimensioned accordingly to accommodate the desired hose or pipe can. The tube and / or the tube may be led out of the base plate or be led out and / or protrude from the base plate in one or two directions. Thus, for example, connections can be provided on the hose or pipe and be moved away from the sliding chair for connection.

The Heizfluidführungskanal may be performed in at least one arc. For example, the Heizfluidführungskanal have at least one U-shaped arc.

Between the base plate and Gleitstuhlplatte a receiving area may be provided, which is capable of receiving a clamping device. Such a tensioning device can be provided to positively influence the fastening properties of the Gleitstuhlplatte even with loads such as by a pull over the slide chair train. Conveniently, the Heizfluidführungskanal is arranged such that it does not affect the operation of the clamping device.

Further, a rail switch is provided with at least one slide chair described herein. The rail switch may in particular be a switch and have corresponding cheek rails and tongue rails. The heating ducts and / or Heizfluidführungen recorded in the Heizfluidführungskanälen can be connected and connectable via suitable connections and / or connecting lines with each other and / or with a Heizfluidquelle and / or a Heizfluidabfluss.

In addition, a heater for a rail switch is provided, which is adapted to lead a heating fluid through a Heizfluidführung in a Heizfluidführungskanal at least one slide chair described herein. The rail switch may be a rail switch described herein. The heating device may have at least one pump for providing the heating fluid and / or at least one heat source for heating the heating fluid. A heat source may be a burner, an electric heater, a geothermal device or the like. The heating device may further comprise suitable connections, such as pipes, hoses and / or corresponding lines and connection devices, via which one or more sliding chairs and / or Heizfluidführungskanäle of Gleitstühlen and / or received therein Heizfluidführungen can be supplied with heating fluid, such as one or more pumping devices. It is conceivable that sliding chairs and / or Heizfluidführungen of sliding chairs are fluidically connected in series and / or parallel or connectable.

In the following, embodiments of the invention will be described by way of example with reference to the accompanying drawings.

Fig. 1

schematisch eine Ansicht einer Gleitstuhlplatte mit Heizfluidführungskanal,

Fig. 2

schematisch einen Teil einer Schienenweiche mit mehreren Gleitstühlen,

Fig. 3

eine Seitenansicht eines Gleitstuhls einer Schienenweiche,

Fig. 4

eine Draufsicht eines Gleitstuhls,

Fig. 5

eine Sicht auf einen Gleitstuhl von unten,

Fig. 6

eine Ansicht eines Gleitstuhls von schräg unten,

Fig. 7

eine Querschnittsansicht eines Gleitstuhls,

Show it:

Fig. 1

2 is a schematic view of a slide chair plate with a heating fluid guide channel;

Fig. 2

schematically a part of a rail switch with several slide chairs,

Fig. 3

a side view of a Gleitstuhls a rail switch,

Fig. 4

a top view of a sliding chair,

Fig. 5

a view of a sliding chair from below,

Fig. 6

a view of a slide chair from diagonally below,

Fig. 7

a cross-sectional view of a slide chair,

FIG. 1 schematically shows a plan view of a portion of a slide chair 10. The slide chair 10 comprises a base plate 12 and a Gleitstuhlplatte arranged above it. The Gleitstuhlplatte 14 is fixedly connected to the base plate 12 and arranged so that the Gleitstuhlplatte 14 is able to keep in a conventional manner a stock rail 100 of a Zungenweiche. About mounting holes 16, the base plate 12 is fixed or attachable to a rail tie 50. A support device 21 of the slide chair 10 is intended to receive and support a tensioning device such as a clamping bracket. The slide chair can be considered part of a rail switch. One of the stock rail 100 associated tongue rail 102 of the rail switch is mounted relative to the stock rail 100 movable on the Gleitstuhlplatte 14. In the base plate 12 of the slide chair 10, a Heizfluidführungskanal 20 is provided, which is shown in dashed lines in the figure. In the Heizfluidführungskanal 20, a Heizfluidführung 22 is accommodated, which is formed in this example as Heizfluidführungsrohr. The Heizfluidführungskanal 20 has a first channel opening or inlet opening 24, in which the tube 22 penetrates into the base plate and the Heizfluidführungskanal 20. Further, a second channel opening or exit opening 26 is provided, through which the tube 22 exits the Heizfluidführungskanal 20 after it has been described within the base plate 12 embedded in the Heizfluidführungskanal 20 substantially a U-shaped arc. The tube 22 protrudes beyond the base plate 12 both at the first channel opening 24 and at the second channel opening 26. In this example, it is provided that the tube 22 in each case even extends beyond the threshold 50, to which the base plate 12 is attached. At each tube end of the tube 22, a fluid port 28, 30 is provided, via which a heating fluid via an associated line 32, 34 of a heater can be fed into the pipe 22 or discharged therefrom. If a warm heating fluid flows via the lines 32, 34 and the tube 22, the heating fluid in the heating fluid guide channel 20 can give off heat to the base plate 12 and the slide chair 10 in order to heat it.

FIG. 2 shows a larger part of a rail switch with several sliding chairs 10. The Gleitstühle 10 correspond to those with reference to FIG. 1 described slide chair 10. In FIG. 1 It can be seen that tongue rail 102 and stock rail 100 are not arranged parallel to each other. On each slide 10, a rail holding device 25 is provided, by means of which the stock rail 100 is respectively screwed to the slide chair 10 and is held against displacement. In the limited section of the FIG. 1 the corresponding rail holding device is not visible, even if it can be present. On the tongue rail 102 facing and with respect to the stock rail 100 of the rail holder 25 opposite side of the stock rail 100, the stock rail 100 is secured by the sliding chair 10 against displacement. The tongue switch 102 is mounted on the Gleitstuhlplatte 14 and can shift to it. The sliding chairs 10 are each serially connected via connecting lines 32, 34, so that a heating fluid can successively flow through the sliding chairs shown and is able to heat them. It is of course also conceivable another fluidic arrangement, such as a parallel arrangement or a single arrangement in which one or more sliding chairs 10 are each supplied separately with heating fluid or are supplied. It can also be provided that not every slide 10 of a rail switch has a heating fluid guide channel 20 shown here or a corresponding heating fluid guide, but differently shaped slide chairs are used. For example, slide chairs 10 as in Figures 1 and 2 shown at particularly sensitive to temperature or weather sensitive places a rail switch, while at less sensitive places other types of sliding chairs without the described Heizfluidführungskanal 20 can be used.

FIG. 3 shows a cross-sectional view of a mounted slide chair 10. On the base plate 12 of the slide chair 10, on the one hand, the rail holding device 25 is arranged to hold the stock rail 100 on the side facing away from the tongue rail 102 side. The tongue rail 102 is arranged as shown movably on the slide chair 10 and can move in particular on the Gleitstuhlplatte 14. The Gleitstuhlplatte 14 is arranged such that it can clamp the stock rail 100 on the rail holding device 25 opposite side and in particular is able to secure against lateral movements. Within the Heizfluidführungskanals 20 a Heizfluidführung 22 is laid in the form of a pipe to the terminal 28. Between the Gleitstuhlplatte 14 and the base plate 12, a receiving region of the support means 21 is provided, in which a supportable by the support means 21 clamping device can be accommodated. Furthermore, the base plate 10 may be fixed or fixable via an exemplary mounting hole 16. It is understood that a plurality of mounting holes can be provided.

FIG. 4 shows a view of the slide chair 10 from above. In contrast to the view of FIG. 1 Here, the rail holding device 25 for fixing a stock rail 100 together with fixing holes 16 can be seen.

FIG. 5 shows a view of a slide chair 10 from below. It can be seen that in the base plate 12 of the Heizfluidführungskanal 20 is formed and extends substantially U-shaped between the channel openings 24, 26. In the base plate 12 is also a formed substantially oval opening 32, through which a clamping device can be seen. Such a tensioning device can be arranged in the support device 21 between the base plate 12 and not to be recognized Gleitstuhlplatte 14. The opening 32 serves to receive the clamping device and can allow access to the clamping device. Furthermore, a structural relief of the base plate 12 in the region of the clamping device can take place via the opening 32.

FIG. 6 schematically shows a view of a sliding chair 10 obliquely from below. In this view, hint the Gleitstuhlplatte 14 and the rail holding device 25 and the mounting holes 16 can be seen. The heating fluid guide channel 20 is guided between the channel openings 24, 26 substantially U-shaped around the oval base plate opening 32. It can be seen that the heating fluid guide channel 20 is downwardly open in profile, so that a Heizfluidführungsrohr or a Heizführungsschlauch can be easily inserted into the Heizfluidführungskanal 20.

FIG. 7 shows a cross-sectional view of a slide chair 10 from behind. There is a support device opening 36 can be seen, which allows access to the receiving area between Gleitstuhlplatte 14 and base plate 12. As can be seen generally from the drawings, the heating fluid guide channel 20 is guided within the base plate 12 so as not to interfere with the structural integrity of the base plate 12 and the attachment of the gliding chair 10 to a sill or pad.

LIST OF REFERENCE NUMBERS

10

A slide

12

baseplate

14

slide chair

16

mounting holes

20

Heizfluidführungskanal

21

support means

22

pipe

24

entrance opening

26

output port

25

Rail maintenance facility

28

connection

30

connection

32

opening

36

Abstützeinrichtungsöffnung

50

threshold

100

stock rail

102

tongue rail

Claims (10)

1. A slide chair (10) for a rail switch, comprising
   a base plate (12), by means of which the slide chair (10) is fixed or can be fixed;
   a slide chair plate (14), which is fixedly connected to the base plate (12);
   characterised in that
   a hot fluid duct channel (20) is formed in the base plate (12).
2. The slide chair according to Claim 1, wherein the hot fluid duct channel (20) is designed to accommodate a hot fluid duct (22).
3. The slide chair according to any one of the preceding claims, wherein the hot fluid duct channel (20) is arranged on the side of the base plate (12) opposite the slide chair plate (14).
4. The slide chair according to any one of the preceding claims, wherein the hot fluid duct channel (20) has an open profile.
5. The slide chair according to Claim 4, wherein the profile is open towards the lower face of the base plate (12).
6. The slide chair according to any one of the preceding claims, wherein a hose or pipe for conducting a hot fluid is accommodated or can be accommodated as the hot fluid duct (22) in the hot fluid duct channel (20).
7. The slide chair according to any one of the preceding claims, wherein the hot fluid duct channel (20) runs in at least one curve.
8. The slide chair according to any one of the preceding claims, wherein an accommodation region is provided between base plate (12) and slide chair plate (14), which region can accommodate a clamping device.
9. A rail switch having at least one slide chair (10) according to any one of Claims 1 to 8.
10. A heating device for a rail switch, which is designed to conduct a hot fluid through a hot fluid duct (22) in a hot fluid duct channel (22) of at least one slide chair (10) according to any one of Claims 1 to 8.

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