WO2023241848A1

WO2023241848A1 - Connecting arrangement between longitudinal-connection elements of a catenary system, and catenary system having such a connecting arrangement

Info

Publication number: WO2023241848A1
Application number: PCT/EP2023/061262
Authority: WO
Inventors: Sascha Giebel; Kai BLUMENTHAL; Wolfgang GRÄF
Original assignee: Siemens Mobility GmbH
Priority date: 2022-06-13
Filing date: 2023-04-28
Publication date: 2023-12-21
Also published as: DE102022205938A1

Abstract

The invention relates to a connecting arrangement (10), (20), (30) between at least two longitudinal-connection elements (1), (2) of a catenary system, wherein each of the longitudinal-connection elements (1), (2) can be designed in the form of a messenger wire (1) or a contact wire (2), and the connecting arrangement (10), (20), (30) is connected to the at least two longitudinal-connection elements (1), (2) by means of clamping devices (4), (8), wherein the connecting arrangement (10), (20), (30) has a connecting wire (12), (22), (32), at least part of which is provided with a sheath (14), (24), (34). The connecting arrangement (10), (20), (30) according to the invention and also catenary systems having such connecting arrangements (10), (20), (30) can be used, and are suitable, both for railbound and for non-railbound electric vehicles, that is to say in particular also for e-highway systems.

Description

Connection arrangement between longitudinal connecting elements of a contact line system and contact line system with such a connection arrangement

The invention relates to a connection arrangement between longitudinal connection elements of a contact line system and a contact line system with at least one such connection arrangement.

In contact line systems with chain structures and overhead lines or Contact wires from or for at least partially electrically powered, rail-bound and non-rail-bound vehicles, such as. B. Electric rail vehicles, trucks or e-buses, especially in eHighway contact line systems, have various cables and wires installed, with the contact wire and support cable stretched between two support points. To ensure that the contact wire of a contact line system always has the same height and does not sag, it is additionally supported by hangers or Hanger ropes attached to the supporting rope. hanger, or Hanger cables are usually made of copper or bronze cables and are therefore electrically conductive. Hangers can also connect two support cables or two contact wires. Only occasionally are the hangers made of plastic ropes. There are also other ropes, such as: B. Fixed point ropes, anchor ropes, etc.

Due to the physical properties, especially with regard to a change in length due to temperature changes, the wires and ropes used in a contact line system are usually tensioned in so-called post-tensioning lengths. In order to ensure uninterrupted contact between the current collector of the respective vehicle and the contact wire, the incoming and outgoing contact wires and support cables are guided in parallel over a certain length (e.g. a longitudinal span, usually approx. 30 - 80 m). Such areas are therefore also referred to as parallel fields. Thus, successive trailer lengths, i.e. an ending and a new beginning trailer length, overlap over a certain area. The corresponding ending contact wire, suspended from the support cable, is therefore usually positioned above the rails or rails, starting from its target height. The road is first pulled upwards and then further outside the rail/track or road area, where it is tensioned on the tensioning device. The supporting cable, which is connected via hangers or Hanger ropes carrying the contact wire also follow this course. The new contact wire is attached to the rail/track area in the same way, but coming from the corresponding tensioning device from the other direction. brought to the carriageway/road and introduced from above until it has reached the target contact wire height. When the contact wires and supporting cables are brought in and out of a chain structure, one of the chain structures must necessarily cross the other. In the case of two-pole chain systems, the continuous chain systems on both poles cross each other. As a result, it can happen that elements of both chains come into contact and rub against each other due to certain operating situations, temperature changes or other climatic influences. The result is that the corresponding elements can wear out mechanically and ultimately crack. This means they potentially pose a danger to traffic or traffic area and/or pose a danger to, if necessary. people present.

E-highway contact line systems, i.e. contact line systems for non-rail-bound vehicles, such as. B. Trucks, compared to contact line systems for rail-bound vehicles, such as. B. Railway rolling stock, additional features or Requirements, namely, firstly, two chain structures, since the plus and minus poles are routed via the overhead line and secondly, the hangers or Hanger ropes maintain a specified distance between the support rope and the contact wire, which must not be exceeded. Due to this constellation, it is almost unavoidable that corresponding ropes and/or wires touch and thus grind them against each other. Particularly in the parallel fields, the contact wire and/or supporting cable of the crossing chainwork can be attached to the hangers or Grind the hanger ropes of the other chain.

The invention is based on the object of specifying a connection arrangement with which the direct grinding of crossing conductors against one another is avoided.

The task is solved by the features of independent patent claim 1. Further developments and refinements of the invention can be found in the features of the dependent patent claims.

For this purpose, a connection arrangement between at least two longitudinal connection elements of a contact line system is specified, whereby each of the longitudinal connection elements can be designed as a support cable or as a contact wire, and the connection arrangement is connected to the at least two longitudinal connection elements by means of clamping devices, the connection arrangement having a connection cable which is at least partially is equipped with a covering.

If only ropes or only wires are mentioned below, the missing term should always be included. The embodiments according to the invention always apply to both ropes and wires.

The solution according to the invention has the advantage that because the connecting rope and thus one of the crossing ropes has a covering, the crossing rope rolls off the covering without a covering and thus the direct rubbing against each other or. Grinding of the two crossing ropes and thus damaging each other until they rise or fall. Rubbing prevented or is at least severely delayed. This means that the wear on the corresponding, crossing cables and wires of the contact line system is significantly lower, which means that maintenance costs can be significantly reduced. The covering is advantageously constructed in such a way that the wear of the unrolling rope during movements on the sleeve is as low as possible, which further reduces wear and thus maintenance costs.

Another advantage is, in particular, that the solution according to the invention is very easy to implement and can be tailored specifically to the on-site situation as part of the usual assembly activities. Additional project planning is not necessary for this.

According to a further preferred embodiment of the invention, the covering is designed to be movable relative to the connecting rope. Particularly preferably, the covering is rotatable relative to the connecting cable and is designed in particular as a tube or as a sleeve. This has particular advantages in terms of production technology, since the connecting rope and the covering can be produced separately. This means that the covering can be easily pulled onto the connecting rope separately as a whole. The required length of the covering can also be easily dimensioned. In addition, a sleeve or sleeve has a substantially circular cross section. of a pipe is very advantageous because no corners and/or edges can get caught on other elements. Nevertheless, the casing is not limited to a circular cross section or the shape of a tube or a sleeve. Depending on your wishes and requirements, all possible other shapes and/or cross sections and/or sizes are conceivable and possible.

According to a further preferred embodiment of the invention, the covering is made of a low-abrasion material. In principle, the use of different, different materials is possible, provided they are sufficiently resistant. This is particularly advantageous as it also increases the service life of the casing itself and thus contributes to even lower maintenance costs.

According to a particularly preferred embodiment of the invention, the covering is secured by means of at least one fastening element. Element can be fixed to the connecting rope. The distance between the casing and the at least two longitudinal connecting elements is particularly preferably adjustable by means of the at least one fastening element. This has the advantage that the essentially complete length of the connecting rope does not need to be surrounded by a covering, but rather the covering can be of a length that covers the necessary area, i.e. the crossing area, of the connecting rope, in which contact between crossing ropes and /or wires are to be expected, be limited. Another advantage is that the possibility of adjusting the distance between the casing and the longitudinal elements, in particular z. B. to the supporting rope or to the contact wire, above and below the casing, by means of a fastening element, thus the position of the casing between the longitudinal elements not only exactly according to the local conditions or. Requirements are set, but the position is also very simple and uncomplicated to adapt to boundary conditions that change over time, for example changes in length due to temperature changes, sagging of the longitudinal elements over time, etc. , can be customized.

Regardless of this, the covering should advantageously be as large or be dimensioned long so that changes in the position of the unrolling rope, for example. B. also covered in the event of temperature changes. are included.

According to a particularly preferred embodiment of the invention, the at least one fastening element is fixed to the connecting rope and the covering rests on the fastening element. The lower limit of the area in which contact between crossing ropes is to be expected can therefore advantageously be set very easily and the covering lies due to gravity without additional measures or Aids are placed loosely on the fastening element without a firm connection. Of course, this assumes that the covering is dimensioned in such a way that the covering cannot slip over the fastening element. Preferably, the fastening element is similar to the pipe or sleeve-shaped casing, a substantially circular cross section, the diameter of which is larger than the diameter of the casing. This can prevent elements located underneath, such as the lower rope clamp, etc. , can be damaged by the covering.

According to a further particularly preferred embodiment of the invention, the at least one fastening element is fixed to the connecting rope and alternatively the covering is connected centrally to the fastening element, whereby the weight distribution or -load on the only fastening element in this embodiment is optimized.

According to a further particularly preferred embodiment of the invention, the covering can alternatively be fixed to the connecting cable by means of two fastening elements, the two fastening elements being fixed to the connecting cable and a fastening element in the upper region of the covering and a fastening element in the lower region of the covering with the covering connected is . This is a particularly safe embodiment of the invention.

However, the invention is not limited in number to one or two fastening elements. Depending on requirements, additional fastening elements can also be used, which can be located in all sensible positions between the longitudinal elements, for example the support cable and contact wire.

According to a further particularly preferred embodiment of the invention, the at least one fastening element is designed as a ball or roller bearing. Such bearings are advantageously extremely robust, easy to handle, very low-maintenance and are quickly available in any quantity. Of course, all sorts of other suitable components can also be used for this purpose. The connecting rope is particularly preferably a hanger rope, since assembly is particularly easy here.

A contact line system is particularly preferably equipped with at least one connection arrangement according to one of claims 1 to 12.

In summary, the connection arrangement according to the invention consists of a movably supported casing, for example a sleeve, over one of the two crossing cables and at least one fastening element between this cable and the enveloping sleeve. The at least one fastening element is, on the one hand, attached to one of the crossing ropes and fixes the position of the covering and, on the other hand, ensures mobility or The casing, for example the sleeve, can be rotated safely. This is done e.g. B. form-fitting or supported by sliding or friction elements, ball or rolling bearings, etc. The connection arrangement according to the invention thus makes it possible to prevent or prevent damage to crossing cables and/or wires of contact line systems, particularly in parallel fields. at least to significantly delay it and thus significantly reduce the maintenance effort. The connection arrangement according to the invention and contact line systems with such connection arrangements can be used and suitable for both rail-bound and non-rail-bound electric vehicles, in particular for eHighway systems for trucks or e-buses.

Preferred exemplary embodiments of the invention are explained in more detail with reference to the drawings. Show it :

Fig. 1 a connection arrangement according to the invention with a fastening element,

Fig. 2 a further connection arrangement according to the invention with a fastening element and Fig. 3 shows a further connection arrangement according to the invention with two fastening elements.

All three figures each show an embodiment of a connection arrangement 10, 20, 30 according to the invention, which is arranged between a support cable 1 and a contact wire 2. The respective connection arrangement 10, 20, 30 according to the invention is connected in the usual way at its upper end with a clamp 4 to the support cable 1 and at its lower end with a clamp with a loop 8 to the contact wire 2.

All three embodiments of the connecting arrangement 10, 20, 30 according to the invention have a connecting rope, in particular a hanger rope 12, 22, 32 with a sheath 14, 24, 34, on which the crossing rope and / or wire rolls without a sheath 5 and This prevents or at least greatly delays the direct rubbing or grinding of the two crossing ropes against each other and consequently the mutual damage to the point of rubbing or rubbing through. The casing 14, 24, 34 advantageously consists of a low-abrasion material, since this also increases the service life of the casing 14, 24, 34 and thus further reduces the maintenance effort and thus the maintenance costs. In principle, the use of all possible different materials is possible, provided they are sufficiently resistant to abrasion.

Fig. 1 shows a connection arrangement 10 according to the invention with a fastening element 18. The connection arrangement 10 consists of a connecting cable, in particular a hanger cable 12, which is connected to the support cable 1 or the contact wire 2 via the clamps 4 and 8. 1 also shows a casing 14 of the hanger rope 12 in a top view, through which the hanger rope 12 is passed. Fig. 1 further shows a fastening element 18, which can be attached to the hanger, for example by means of a screw or clamp connection. rope 12 is fixed. The fastening element 18 is a separate component and is not firmly connected to the casing 14. Rather, the casing 14 rests loosely on the fastening element 18 due to gravity without a firm connection. The ones in Fig. 1 is thus movable relative to the hanger rope 12 and in particular rotatable about the hanger rope 12 and has the shape of a tube or a sleeve with a substantially circular cross section. In order to prevent the casing 14 from slipping over the fastening element 18, the casing 14 is dimensioned accordingly. Preferably, the fastening element 18, similar to the tubular or sleeve-shaped casing 14, has a substantially circular cross-section, the diameter of which is larger than the diameter of the casing 14 itself. Alternatively, it is of course also possible for the casing 14 to have a corresponding, dimensioned base with a hole (not shown in FIG. 1) in order to prevent slipping over the fastening element 18. In any case, this means that elements located underneath, for example the lower cable clamp 8, etc. , protected from damage. The covering 14 can therefore advantageously be produced separately and can very easily be pulled onto the hanger rope 12 as a whole before the actual assembly of the hanger rope 12 .

The position of the fastening element 18 on the hanger rope 12 can be fixed variably, i.e. H . By changing the position of the fastening element 18 on the hanger cable 12, the distance between the covering 14 and the support cable 1 and the contact wire 2 can be changed and adjusted accordingly depending on requirements. This has, among other things, the advantage that the essentially complete length of the hanger rope 12 does not need to be covered, but rather the covering 14 can, as shown, be of a length that covers the necessary crossing area 16 of the hanger rope 12, in which there is contact between crossing ropes and/or wires 5 are to be expected, covered, limited. The necessary length of the casing 14 can also be easily and easily dimensioned in terms of production technology. The position of the covering 14 between the support cable 1 and the contact wire 2 can therefore not only be adjusted exactly according to the local conditions or Requirements specified or can be set, but also very easily and uncomplicated at any time to changing boundary conditions over time, for example changes in length due to temperature changes, sagging of the support cable 1 and / or the contact wire 2, etc. , adapted and readjusted accordingly.

The casing 14 should advantageously be at least as large or be dimensioned long so that changes in position of the unrolling rope 5, e.g. B. at or due to temperature changes, still covered or are included. Accordingly, it is advantageous to dimension the casing 14 larger than the expected size depending on the safety requirements. necessary crossing area 16, so that the casing 14, as in FIG. l shown, protrudes beyond the intersection area 16.

In the description of Figures 2 and 3, only the differences between the illustrated embodiments of the connection arrangements according to the invention and the one shown in Fig. 1 described received. The advantages are of course also present within the scope of the similarities and also apply to the embodiments in Fig. 2 and 3 in particular with regard to the intersection areas 26 and 36.

Fig. 2 shows a further connection arrangement 20 according to the invention with a fastening element 28.

The connection arrangement 20 also has a fastening element 28 which is fixed to the hanger rope 22 . As an alternative to the connection arrangement 10 in FIG. 1, the casing 24 is centrally and directly connected to the fastening element 28, whereby the weight distribution or -load on the fastening element 28 is optimized. The fastening element 28 is designed as a ball or rolling bearing, which ensures that the casing 24 also is movable relative to the hanger rope 22 and in particular rotatably mounted around the hanger rope 22. Such bearings are advantageously extremely robust, easy to handle and, moreover, very low-maintenance. The covering 24 is tighter and therefore more controlled due to the direct connection to the fastening element 28. Guided to the hanger rope 22, it therefore has correspondingly less freedom of movement compared to the covering 14 from FIG. 1 and is therefore also designed to be more robust and less maintenance-intensive, in particular because the fastening element 28 is attached within the casing 24 and is therefore better protected from the effects of the weather.

Fig. 3 shows a further connection arrangement 30 according to the invention with two fastening elements 38, 39.

The connection arrangement 30 has two fasteners

38 and 39, both of which are fixed to the hanger rope 32. Both fastening elements 38 , 39 are attached within the casing 34 . The fastening element 38 is in the upper region of the casing 34 and the fastening element

39 connected to the casing 34 in the lower region of the casing 34. By distributing it over two fastening elements 38, 39, the weight distribution or -load on the fastening elements 38, 39 is further reduced or optimized so that this embodiment is particularly safe.

The fastening elements 38 and 39 are also advantageously designed as ball or rolling bearings, which also ensures here that the casing 34 is movable relative to the hanger rope 32 and is mounted rotatably around the hanger rope 32 in particular. The guidance of the casing 34 is even tighter and more controlled compared to the casing 22 and accordingly has further improved properties compared to the embodiment according to FIG. 2.

However, the invention is not limited to one or two fastening elements 18, 28, 38, 39, particularly with regard to the number of fastening elements 18, 28, 38, 39. Je If necessary, additional fastening elements can also be used, which can be attached at all sensible positions between the longitudinal elements of the contact line system, for example support cable 1 and contact wire 2.

Claims

Patent claims

1. Connection arrangement (10, 20, 30) between at least two longitudinal connecting elements (1, 2) of a contact line system, each of the longitudinal connecting elements (1, 2) acting as a support cable

(1) or can be designed as a contact wire (2), and the connecting arrangement (10, 20, 30) is connected to the at least two longitudinal connecting elements (1, 2) by means of clamping devices (4, 8), characterized in that the connecting arrangement ( 10, 20, 30) has a connecting rope (12, 22, 32), which is at least partially equipped with a covering (14, 24, 34).

2. Connection arrangement (10, 20, 30) according to claim 1, characterized in that the casing (14, 24, 34) is designed to be movable relative to the connecting cable (12, 22, 32).

3. Connection arrangement (10, 20, 30) according to claim 2, characterized in that the covering (14, 24, 34) is designed to be rotatable relative to the connecting cable (12, 22, 32).

4. Connection arrangement (10, 20, 30) according to one of the preceding claims, characterized in that the casing (14, 24, 34) is made of a low-abrasion material.

5. Connection arrangement (10, 20, 30) according to one of the preceding claims, characterized in that the casing (14, 24, 34) is designed as a tube or as a sleeve.

6. Connection arrangement (10, 20, 30) according to one of the preceding claims, characterized in that the covering (14, 24, 34) can be fixed to the connecting cable (12, 22, 32) by means of at least one fastening element (18, 28, 38, 39).

7. Connection arrangement (10, 20, 30) according to claim 6, characterized in that the distance of the casing (14, 24, 34) to the at least two longitudinal connecting elements (1, 2) by means of the at least one fastening element (18, 28, 38 ,39) is adjustable.

8. Connection arrangement (10, 20, 30) according to one of claims 6 or 7, characterized in that at least one fastening element (18, 28, 38, 39) is fixed to the connecting cable (12, 22, 32) and the covering (14, 24, 34) rests on the fastening element (18, 28, 38, 39).

9. Connection arrangement (10, 20, 30) according to one of claims 6 or 7, characterized in that at least one fastening element (18, 28, 38, 39) is fixed to the connecting cable (12, 22, 32) and the covering (14, 24, 34) is connected centrally to the fastening element (18, 28, 38, 39).

10. Connection arrangement (10, 20, 30) according to one of claims 6 or 7, characterized in that the covering (14, 24, 34) is attached to the connecting cable (12, 22) by means of two fastening elements (18, 28, 38, 39). , 32) can be fixed, the two fastening elements (18, 28, 38, 39) being fixed to the connecting rope (12, 22, 32) and a fastening element (18, 28, 38, 39) in the upper region of the covering (14 , 24, 34) and a fastening element (18, 28, 38, 39) in the lower region of the casing (14, 24, 34) is connected to the casing (14, 24, 34).

11. Connection arrangement (10, 20, 30) according to one of claims 6 to 10, characterized in that at least one fastening element (18, 28, 38, 39) is designed as a ball or roller bearing.

12. Connection arrangement (10, 20, 30) according to one of the preceding claims, characterized in that the connecting rope (12, 22, 32) is a hanger rope.

13. Catenary system with at least one connection arrangement (10, 20, 30) according to one of claims 1 to 12.