EP3026176B1 - Points component, points and production method for a points component with a heating device - Google Patents

Description

The invention relates to a guided as a guide device switch component, such as a tongue device, a heart or the like, with an upper part and a lower part, wherein the upper part and the lower part with at least one contact surface abut each other and wherein the upper part and the lower part connected to each other. Such a turnout component can the DE 101 24 624 A1 are taken, which describes a so-called sandwich construction. The WO 2013/120487 A1 further describes a switch component according to the preamble of claim 1. Furthermore, the invention relates to a manufacturing method for a switch component with heating.

Another prior art deals with heat exchanger units for heating systems and areas, with so-called point heaters, such as EP 2 142 704 B1 , Accordingly, for transferring heat to a component to be heated miniature channels are arranged in a planar arrangement in the component. The doctrine of EP 2 142 704 B1 obviously looking for a solution for a direct heating of turnout components, but of non-leading turnout components. Sliding chairs are named as an application. Sliding chairs do not lead the train but at best parts of a switch. The EP 2 142 704 B1 also focuses on special components, which are to be used in threshold compartments. Thus, therefore, always an indirect heating of leading parts is proposed, no direct heating.

Out WO 2011/141 550 A1 is a superstructure device with a tongue device is known, wherein over the entire length of the tongue device extends a block from which a tongue bed is worked out. The block is connected to supports and raised above the supports on a base plate. In a space formed by the supports, the base plate and the bottom of the block heating is provided as a heating rod.

By leading parts or guide means this description means elongate switch parts, such as tongue devices or the like, which have a longitudinal direction have coincident with the direction of travel of the train. The invention is also concerned with heating a considerable portion of a switch component seen in this direction of travel. Consequently, a generic switch component must also have a certain dimension along this direction.

Direct insertion of mini-channels according to EP 2 142 704 B1 , For example, as holes in any components of the 10 points construction, but also applies to the DE 10 2012 108 586 B3 as too expensive. The EP 2 142 704 B1 itself also indicates deformations that occur during direct heating. Heat exchanger units according to EP 2 142 704 B1 are stored at the support points on the switch with deformable elements 15.

Therefore, the use of separately manufactured heat exchangers with contact to switch components is generally further improved, cf. DE 10 2012 108 686 B3 , There is the teaching of the above EP 2 142 704 B1 (also WO 2008/131732 A1 ) are considered problematic. A disadvantage is the high production costs to be introduced individually mini-channels. Boreholes are also only linear executable, the freedom of design is limited.

The present invention has for its object to develop a low-cost manufacturing process that provides direct as possible Heizheizbarkeit leading Weichenbestandteile.

This object is achieved by a switch component comprising the characterizing features of claim 1 in combination solved with its generic features, further by a manufacturing method according to claim 11.

Further advantageous embodiments of the invention form the subject of further claims.

According to the invention, at least one inner cavity is formed between the upper part and the lower part, which cavity has at least one outwardly open connection opening. The invention thus utilizes the horizontally divided design of switch components with leadership property, under which design at least the sandwich construction according to DE 101 24 624 falls to create and use at least one space for a heater in the dividing area available for processing. The invention relates generally to horizontally split built turnout components, including those that already have by their construction cavities extending in the longitudinal direction. Following the idea of the invention, existing cavities in the interior of the points components can be integrated into a network for heating. This offers a variety of possibilities for production. The known limit of, for example holes is thus overcome.

A major advantage of expanding this horizontal cutting surface for accommodating the heating device or an at least roughly horizontal cutting surface to achieve a heating function, is further seen that deformations to be feared during direct heating can be better controlled, because in horizontal layer arrangement in preferred embodiments different Materials used and subsequently connected as parts of the points component. The switch component according to the invention is not limited to a division into two vertically superimposed constituent layers. The invention expressly comprises a retracted as a horizontal layer plate, which is advantageously fed as a heat transfer plate, as the lower or a middle part. Here are as material combinations that have proven to be advantageous during the invention: steel high-strength grade for the upper, leading parts and structural steel for the lower heating. The combination of materials with welding allows controlling or limiting the deformation by heating.

In embodiments according to the invention, in particular with structural steel and larger component volumes, deformations kept within satisfactory limits.

According to a further embodiment of a switch component according to the invention outer surfaces of the switch component are at least thermally insulated. Particularly preferably, the Wärmeisolierfunktion is taken into account in the design of a vibration protection.

A manufacturing method according to the invention has at least the method steps: providing an at least one cavity in at least one of the contact surfaces or an upper and a lower part of a railway switch component with mutually zuwendbaren and interconnectable contact surfaces, in particular for preparing a production by the sandwich method between contact surface areas with at least one connection opening to the outside, which leads out of the area of the contact surfaces to integrate the cavity in a heating system or to grant a heating system with, for example, inlet and outlet access to the switch component.

Fig. 1

ein Ausführungsbeispiel eines unteren Teils eines erfindungsgemäßen Weichenbestandteils in perspektivischer Darstellung,

Fig. 2

Weichenbestandteile des ersten Ausführungsbeispiels in einer Draufsicht mit eingetragenen Schnitten quer zur Schienenlängsrichtung und gestrichelt eingetragenen Heizkanälen,

Fig. 3

den in Fig. 2 eingetragenen Schnitt A-A mit beweglicher Zunge, deren Bewegbarkeit im Ausführungsbeispiel gegen Vereisen zu sichern ist, und

Fig. 4

den in Fig. 2 eingetragenen Schnitt B-B auf Höhe einer Rücklauföffnung der Heizleitung durch den Weichenbestandteil.

According to one embodiment of the method according to the invention, the cavity and the connection opening are produced in a single manufacturing process step, in particular by machining, in a surface of at least one of the parts.
To illustrate the invention, an embodiment is given in the figures described below. Show it:

Fig. 1

An embodiment of a lower part of a switch component according to the invention in a perspective view,

Fig. 2

Switch components of the first embodiment in a plan view with registered sections transverse to the rail longitudinal direction and dashed registered heating channels,

Fig. 3

the in Fig. 2 registered section AA with movable tongue whose mobility is to be secured against icing in the embodiment, and

Fig. 4

the in Fig. 2 registered section BB at the level of a return opening of the heating cable through the points component.

In the FIGS. 1 to 4 an embodiment of a switch component according to the invention is shown here embodied as a tongue device 5. The tongue device 5 has an upper part 1 and a lower part 2. The cuts of FIGS. 3 and 4 give an insight into the vertical distribution in upper 1 and lower part 2. FIG. 1 shows in perspective only the lower part with its contact surfaces 3 aligned upward.

The upper part and the lower part abut each other with the contact surfaces 3. Laterally one recognizes in the cuts the FIGS. 3 and 4 in that the upper part and the lower part are welded together 4.

Between the parts 1, 2 in the present case about the tongue 6 of the tongue device 5 following below the tongue 6, an inner cavity 10 is formed, milled in this case. The cavity 10 has two outwardly open connection openings 12.1, 12.2. The connecting openings 12.1, 12.2 lead heating medium in a flow 11 and a return 13 of a heating system. As a heating system in addition to conventional heaters, a geothermal system or connected to a solar panel line into consideration.

The upper part 1 and the lower part 2 according to the invention may alternatively be connected to one another in a generally positive, material or non-positive manner for welding.

The cavity 10 has in the illustrated embodiment, two spaces which are formed in the lower part 2 and connected by an external soft connection line 20. Alternatively, according to the invention upper parts can be designed with cavities, which are integrated into a heating system. The cavity can also be designed according to the invention in two parts. It can also be another part incorporated in the vertical distribution for heating, quasi a heating layer as an intermediate layer, which is nowhere shown.

The cavity 10 is in the in FIG. 1 illustrated lower part 2 as upwardly open, running along the Weichenbestandteils in the direction of travel as a long groove extending recesses. Alternatively or additionally, cavities can be designed as a short groove transverse to the switch component. At the edge or edges thereof, the contact surface 3 closes according to the invention.
The cavity 10 is shown in the form of a half-tube in channel form. The cavity 10 is milled with a semicircular cross-section in the lower part 2 of the switch component. This offers production engineering and aerodynamic advantages. Especially in deflection or curved areas, the round, round groove prevents edges and dead spaces. Further processing of the upper part 1 is not required.

The cavity 10 is according to the invention a kind of heating loop and can lead in this embodiment directly even a heatable fluid medium. The welds 4 seal sufficiently. Alternative embodiments of the invention have a cavity that receives a heating wire.
In the contact surface seals are provided adjacent to the cavity in other embodiments, not shown.
A manufacturing method according to the invention can be understood for the switch component 5 shown in the figures. Parts 1 and 2 are provided for welding 4. Whether the parts 1 and 2 are already completely finished or not should not play a role here. The cavity 10 is according to the embodiment shown in advance between the Milled contact areas 3 with the two connection openings 12 to the outside.

LIST OF REFERENCE NUMBERS

1

upper part

2

lower part

3

contact area

4

Weld

5

A tongue device

6

tongue

10

cavity

11

leader

12

connecting opening

13

returns

14

management

20

connecting line

Claims (12)

1. A shift element, executed as a guiding device, such as a tab device (5), a heart piece or the like, with at least one upper part (1) and one lower part (2), in which the upper part and the lower part contact each other with at least one contact face (3) and in which the upper part and the lower part are connected to each other, in which at least one inner cavity ( 10) is formed between the upper part (1) and the lower part (2), with this cavity (10) having at least one connection opening (12) that is open towards the outside, characterized in that the cavity (10) progresses in the manner of a heating loop in a contact area between the parts (1,2).
2. The shift element in accordance with claim 1, characterized in that the at least upper part (1) and the lower part (2) have a form-, material- or force-locking connection with each other, particularly preferred by welding (4).
3. The shift element in accordance with one of claims 1 or 2, characterized in that the cavity (10) is executed with a single space or with multiple spaces in the lower part (2), the upper part (1), or in both parts (1, 2).
4. The shift element in accordance with one of the preceding claims, characterized in that the cavity (10) in the lower part (2) is executed as an upwards open cutout or cutouts extending particularly preferentially as a long groove along the shift element and/or as a short groove or grooves crosswise to the shift element, at the edge or edges of which the contact face (3) is connected, or the contact faces (3) are connected.
5. The shift element in accordance with one of the preceding claims, characterized in that the cavity (10) is formed half-tube-shaped or channel-shaped in the contact face (3) of one of the parts (1, 2) that faces the respective other part (1, 2).
6. The shift element in accordance with claim 5, characterized in that the cavity (10) is milled into the part (1, 2) of the shift element (1) with a semi-circular cross-section.
7. The shift element in accordance with one of the preceding claims, characterized in that the cavity (10) directly conducts a heatable fluid medium.
8. The shift element in accordance with one of the preceding claims, characterized in that a seal is inserted adjacent to the cavity (10) in the contact face within the in the contact face that is further cut out for a sealing purpose and/or that the sealing of the cavity (10) is performed by the type of connection (4) between the parts (1,2) of the shift element.
9. A shift with at least one shift element in accordance with one of the preceding claims.
10. The shift in accordance with claim 9, characterized in that the cavity (10) or the cavities of at least two shift elements in accordance with one of the claims 1 to 8 are connected to each other, in particular by a connection line (20) outside of the shift.
11. A production method for a shift element, executed as a guide device, such as a tab device (5), a heart piece or the like, in particular for a shift element in accordance with one of claims 1 to 8, with a heating device, comprising at least the process steps:

    - Provision of at least one at least semi-finished upper and at least one at least semi-finished lower part (1, 2) of the shift element with contact faces (3) that can be turned towards each other and connected to each other, in particular for preparing production according to the sandwich procedure,

    - production of a cavity (10) in at least one of the contact faces or between contact face areas with at least one connection opening (12, 13) to the outside that leads out of the area of the contact faces (3), in order to integrate the cavity (10) into a heating system or to give the heating system access into the shift element, in which the cavity is made at least of the connection opening itself.
12. The production method in accordance with claim 11, characterized in that the cavity (10) and the connection opening (12, 13) are not executed with identical spaces and the cavity (10) and the connection opening (12, 13) are produced in a single production procedure step, in particular by machining, in a surface of at least one of the parts.

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