System for carrying a contact wire

Abstract

The invention relates to a system (32) for carrying a first contact line (19) and a second contact line (19') which crosses or merges with the first contact line (19) through an interruption (33) above a railway crossing (3). The system includes a support beam (28); a first carrying element (34) which is connected to the support beam (28) at a first position and is adapted to carry the first contact line (19); a second carrying element (35) which is connected to the support beam (28) at a second position and is adapted to carry the first contact line (19); and a spacer (36) which is connected to the support beam (28) at a third position between the first position and the second position and is adapted to fasten a predefined minimum length (37) for the interruption of the first contact line (19) when viewed in the direction of travel of the first contact line (19).

Description

Technical Field

[0001] The present invention relates to a system for carrying a first catenary wire and a second catenary wire above a railway switch, and to a catenary junction including such a system. Background Art

[0002] Such a system is used, for example, in a railway depot where different railway tracks often cross each other. In a conventional system, a first railway track crosses a second railway track, and a first catenary wire adapted to supply power to trains on the first railway track and a second catenary wire adapted to supply power to trains on the second railway track approach each other as the two railway tracks run. Not far before the intersection point of the railway tracks, the two catenaries are kept at a certain distance from each other and fed approximately parallel to each other. Not far after the intersection point, the two catenaries are guided to separate from each other so that the first catenary supplies electrical energy to trains on the second railway track and the second catenary supplies electrical energy to trains on the first railway track. Summary of the Invention

[0003] It is an object of the present invention to improve the known system.

[0004] This object is solved by the features of the independent claims. Advantageous embodiments are the subject matter of the dependent claims.

[0005] According to one aspect of the present invention, a system for carrying a first catenary wire and a second catenary wire that crosses or merges with the first catenary wire through an interruption above a railway crossing point, the system comprising: a support beam; a first load-bearing element connected to the support beam at a first position and adapted to carry the first catenary wire; a second load-bearing element connected to the support beam at a second position and adapted to carry the first catenary wire; and a spacer connected to the support beam at a third position between the first position and the second position and adapted to secure a predefined minimum length for the interruption of the first catenary wire when viewed in the direction of the first catenary wire.

[0006] The system provided is based on the idea that the system mentioned at the beginning requires a relatively large amount of support structure that carries catenary switches. The reason is that, when viewed in the driving direction, before entering a railway switch, the catenary is formed with a convex surface that steadily changes the direction of the catenary, which in turn has a negative impact on track guidance. To ensure track guidance, the relatively large amount of support structure mentioned above is required.

[0007] In order to reduce the amount of the aforementioned support structure, a system is provided for crossing or merging catenaries and stably guiding a first catenary above a first railway track and a second catenary above a second railway track.

[0008] This is achieved by means of a support beam which essentially bears the first catenary at two different points. The spacer ensures a minimum length of interruption of the first catenary when viewed in the direction of the first catenary, such that even in the case of thermal agitation, no mechanical stress is introduced into the second catenary. In this way, the catenary crossing can be embodied as a cross, and the above-mentioned negative influence of the convex surface of the catenary on the track guidance is reduced, which in turn reduces the need for a larger amount of support structure.

[0009] In one embodiment of the provided system, the spacer is an element rotatably mounted to the support beam. In this way, when the system is installed on the railway track, the crossing or merging angle of the two catenaries can be easily adjusted.

[0010] In a further embodiment of the provided system, the spacer comprises a slotted disk which intersects and the slot is adapted to receive the second catenary. The disk fills the space generated due to the interruption of the first catenary and thus reduces the non-uniformity of the pantograph for obtaining electrical energy from the first catenary.

[0011] In another embodiment of the provided system, the first bearing element and the second bearing element are adapted to bear the first catenary by a form fit perpendicular to the course direction of the first catenary. In this way, the position of the first and second bearing elements on the first catenary can be easily adjusted by moving the elements on the first catenary along and against the course.

[0012] In a preferred embodiment of the provided system, the first bearing element and the second bearing element each comprise a fastening part which is adapted to press the first catenary onto the form fit to fasten the first bearing element and the second bearing element to prevent their unintentional movement relative to the first catenary.

[0013] In yet another embodiment of the provided system, the first bearing element and the second bearing element are respectively borne at the support beam via a distance adjustment part for adjusting the distance between the support beam and the first catenary perpendicular to the course of the first catenary. In this way, the height of the first catenary relative to the second catenary can be adjusted to prevent the non-uniformity of the pantograph when passing through a catenary turnout with the provided system.

[0014] In yet another embodiment, the provided system includes: a clamping cover attached to the support beam with a gap on a side opposite to the first contact wire to connect to the catenary carrying the first contact wire.

[0015] According to another aspect of the present invention, a catenary intersection has a first contact wire and a second contact wire that crosses or merges with the first contact wire above a railway intersection. The catenary intersection includes: one of the provided systems; a first catenary that carries the first contact wire and includes a first catenary portion attached to the first end of the support beam and a second catenary portion attached to the second end of the support beam opposite to the first end; and a second catenary that carries the second contact wire and includes a hollow portion through which the support beam is guided.

[0016] In an embodiment of the provided catenary intersection, the hollow portion is a long groove opposite to the second contact wire and restricted by a wall.

[0017] In another embodiment of the provided catenary intersection, a spacer is located in a groove of the second catenary. Description of the Drawings

[0018] The above characteristics, features, and advantages of the present invention, as well as the ways and means to achieve them, will become more comprehensive based on the following description of the embodiments and will be explained in more detail in combination with the drawings. The drawings show:

[0019] Figure 1 is a schematic diagram of a railway yard having a conventional catenary intersection above a railway intersection in the form of a diamond crossing,

[0020] Figure 2 is about Figure 1 a part of the railway yard,

[0021] Figure 3 is a first perspective view of a catenary intersection according to the present invention, having a first contact wire and a second contact wire, and the second contact wire crosses the first contact wire above the Figure 1 railway intersection in.

[0022] Figure 4 is about Figure 2 a second perspective view of the catenary intersection,

[0023] Figure 5 is about a first perspective view of a system for carrying a first contact wire and a second contact wire crossing the first contact wire through an interruption at the catenary intersection in Figure 2 and

[0024] Figure 6 is aboutFigure 4 Second perspective view of the system.

[0025] In the figures, identical technical elements will be provided with the same reference signs and will only be described once. The figures are only schematic and in particular do not disclose any actual geometric dimensions. Detailed Description

[0026] Referring to Figure 1 , which shows a schematic view of a railway yard 1 having a conventional catenary crossing 2 above a railway crossing in the form of a diamond crossing 3. Looking into the image plane, Figure 1 also illustrated are two railway switches 4 as another type of railway crossing behind the diamond crossing 3.

[0027] The railway crossings 3, 4 transfer trains (not shown) between two railway tracks 5 and 5' extending in the driving direction 6 in Figure 1 , and are positioned side by side with respect to each other when viewed in the transverse direction 7. On the two railway tracks 5, 5', electrical energy is supplied to the trains via respective catenaries 8, 8', which are arranged above the catenaries 8, 8' when viewed in the height direction 9.

[0028] For transferring trains, the railway crossings 3, 4 consist of two cross-transfer railway tracks 10, 10'. The conventional catenary crossing 2 consists of two catenaries 11, 11', both of which start from one of the electrical catenaries 8, 8' and are arched with respect to each other to supply electrical energy to electric trains at the diamond crossing. All the catenaries 8, 8', 11, 11' are carried via a support structure 12 at the ceiling 13. To reduce Figure 1 the complexity, own reference signs are not provided for all the support structures 13.

[0029] As is well known, the railway crossings 3, 4 transfer trains between two railway tracks. Therefore, further explanation thereof will be omitted.

[0030] However, at the conventional catenary crossing 2, the arches have a negative impact on the track guidance of the catenaries on the railway tracks. To ensure the track guidance of the catenaries at the conventional catenary crossing 2, when viewed in the driving direction 6, the distance of the support structures 13 must be selected to be close to each other, which in turn increases the amount of the required support structures 13.

[0031] To overcome this drawback, a replacement catenary crossing is proposed. Before further describing this replacement catenary crossing in detail, reference should be made to Figure 2 and the profiles 14 of the catenaries 8, 8', 11, 11' will be described in further detail based on the catenary 11.

[0032] Viewed in the profile 14, the catenary 11 is formed to be axially symmetric with respect to the profile axis 15. Among them, the profile axis 15 extends parallel to the height direction 9 of the track 10. Viewed in the height direction 9, there is a cross arm 16 on the upper side of the catenary 11, and two tension arms 17 extend from the cross arm 16 against the height direction 9 and in the transverse direction 7. At the end of each tension arm 17 opposite to the cross arm 16, a clamping arm 18 is attached, and the contact wire 19 can be carried between the clamping arms 18 and is clamped by the tension arms 17.

[0033] Figure 2 The catenary 11 shown in [figures] is generally composed of a plurality of catenary sections, which are visible in the Figure 1 profile 14, and they are accurately positioned relative to each other and fixed to each other via a connection splice plate 20. The exact position is defined by the form fit between the connection splice plate 20 and the catenary section, and this form fit is embodied as a tongue / groove connection 21 in Figure 2 . In order to fix the individual catenary sections to each other, screws 22 can be screwed into the connection splice plate 20.

[0034] To facilitate the insertion of the contact wire 19 between the clamping arms 18, a guide groove 23 extends in the transverse direction 7 or against the transverse direction 7 at the connection between the clamping arms 18 and the tension arms 17, and a threading trolly (not shown) can move on this guide groove. Since the insertion of the contact wire 19 between the clamping arms 18 is not necessary for understanding this embodiment, further explanation thereof is omitted.

[0035] Now, based on Figure 3 and Figure 4 the above-mentioned catenary intersection that ensures track guidance with a relatively small amount of support structure 13 will be described in further detail. Figure 3 and Figure 4 respectively show the first and second perspective views of the proposed catenary intersection 24, and this catenary intersection can be arranged above Figure 1 the diamond intersection 3.

[0036] The proposed catenary intersection 24 is composed of a first catenary 11 and a second catenary 11' that intersects the first catenary 11 at the proposed catenary intersection 24. The two catenaries 11, 11' have the same profile, and this profile is substantially the same as the profile 14 of the catenary 11 in Figure 2 . Figure 3 and Figure 4 The profiles of the catenaries 11, 11' in [figures] are the same as those in Figure 2The contour 14 of the catenary 11 shown differs only in two additional tongues on each tensioning arm 17. That is, in Figure 3 and Figure 4 , the splicing plate 20 is form-fitted by four tongue / groove connections 21 at each tensioning arm 17, rather than by two tongue / groove connections 21 at each tensioning arm 17 in Figure 2 . Since this technical detail has no technical impact on the difference in the working principle of the proposed catenary intersection 24 in the case of a conventional catenary intersection 2, further explanation thereof is omitted.

[0037] In Figure 3 and Figure 4 , the through holes 25 are visible for guiding the Figure 2 shown screws 22.

[0038] Figure 3 and Figure 4 , the first catenary carries the first contact wire 19, while the second catenary 11' carries the second contact wire 19'. The two contact wires 19, 19' cross at the proposed catenary intersection, which is the basic difference from the conventional catenary intersection 2. In other words, the first contact wire 19 always powers the trains running on the first railway track 10, while the second contact wire 19' always powers the trains running on the second railway track 10'. In this crossing, the first catenary 11 is interrupted by a catenary interruption 26, through which the second catenary 11' is guided. The second catenary 11' includes a hollow portion embodied as a slot 27 in Figure 2 and Figure 3 .

[0039] Through the slot 27, a support beam 28 is fed, which bridges two parts of the first catenary 11. The support beam 28 is fixed to the cross arms 16 of the two parts of the first catenary 11 by fixing screws 29, which can be screwed directly into the cross arms 16 of the first catenary 11 substantially. In the proposed catenary intersection 24, a clamping cover 30 is provided on the cross arm 16 of the first catenary 11 against the height direction 9, and before screwing in the support beam 28, the fixing screw 29 is fed through the clamping cover 30 and the cross arm 16. This forms a slot 31 between the clamping cover 30 and the support beam 28.

[0040] When the support beam 28 is fed through the slot 27 in the aforementioned manner and the clamping cover 30 is placed on the support beam 28, the part of the cross arm 16 of the second catenary 11' that limits the slot 27 is placed in the slot 31. In this way, the relative height position of the two catenaries 11, 11' with respect to each other is fixed.

[0041] The support beam 28 is part of a system 32 that carries the first contact line 19 and the second contact line 19' in the proposed catenary intersection 24. The system 32 will be further explained in detail based on Figure 5 and Figure 6 .

[0042] Similar to the catenary interruption 26 in the first catenary 11, the first contact line 19 is also interrupted by a line interruption 33. The second catenary 19' is fed through this line interruption 19.

[0043] The support beam 28 includes two load-bearing elements for carrying the first contact line 19'. In the direction of the first contact line 19, the first load-bearing element 34 is placed before the line interruption 33, while the second load-bearing element 35 is placed after the line interruption 33. The support beam 28 further carries a spacer 36 located in the line interruption 33 and keeps the line interruption 33 at a minimum length 37. This ensures that the first contact line 19 will not mechanically contact the second contact line 19' and introduce mechanical stresses, typically due to thermal disturbances.

[0044] The first load-bearing element 34 and the second load-bearing element 35 are constructed in the same way but are arranged mirror-inverted with respect to each other with respect to the line interruption 33. Each load-bearing element 34 includes a gripping part 38 that grips the corresponding contact line 19 like the clamping arm 18. In contrast to the clamping arm 18, the gripping part 38 does not clamp the first contact line 19 but only slides thereon and can thus move arbitrarily in the line direction. That is, the connection between the gripping part 38 and the first contact line 19 is a form-fit, while the clamping arm 18 is connected to the corresponding contact lines 19, 19' by a force-fit.

[0045] Each gripping part 38 is carried at the support beam by two load-bearing screws 39, which enables the gripping part to be carried precisely parallel to the first contact line 19. In order to turn the load-bearing screws 39 through the clamping cover 30 using a screwdriver, the clamping cover 30 includes corresponding screwdriver through-holes 40.

[0046] In order to fasten the position of the gripping element 38 when viewed in the direction of the first contact line 19, fastening screws 41 can be provided at each gripping element 38. The fastening screws 41 press their corresponding gripping elements 38 against the first contact line 19 and thus create a force-fit.

[0047] The spacer 36 is embodied as a circular disk 42, which is divided into two disk parts 42 by a disk groove 43. The disk 42 is fixed to the foot 44 by an un-referenced disk screw, which is carried at one end of a rod 45. The other end of the rod 45 is fastened to the support beam by a rod screw 46. In order to enable the disk 42 to be mounted to the foot 44 at different rotational angles, the foot 44 may include a plurality of screw holes 47 at different angular positions around the connection point of the rod 45, and the disk screw may be screwed into the screw holes. These screw holes 47 should preferably have equal angular distances from each other. In Figure 5 only one of the screw holes 47 is provided with a reference numeral for the sake of brevity.

[0048] To ensure that the spacer 36 does not create unintentional non-uniformities, it may be allocated in a groove 48, which is formed into the second contact grid and shown in Figure 3 FIG.

Claims

1. A system (32) for carrying a first catenary wire (19) and a second catenary wire (19') that crosses or merges with the first catenary wire (19) through an interruption (33) above a railway crossing (3), comprising: - A support beam (28), - A first load-bearing element (34) that is connected to the support beam (28) at a first position and is adapted to carry the first catenary wire (19), - A second load-bearing element (35) that is connected to the support beam (28) at a second position and is adapted to carry the first catenary wire (19), and - A spacer (36) that is connected to the support beam (28) at a third position between the first position and the second position and is adapted to keep the interruption (33) for interrupting the first catenary wire (19) at a predefined minimum length (37) when viewed in the direction of travel of the first catenary wire (19), wherein the spacer (36) includes a disk (42) through which a groove (43) passes, the groove (43) being adapted to receive the second catenary wire (19'), and each of the first load-bearing element (34) and the second load-bearing element (35) includes a gripping portion (38) for gripping the first catenary wire (19).

2. The system (32) according to claim 1, wherein The spacer (36) is rotatably (47) mounted to the support beam (28).

3. The system (32) according to claim 1, wherein, The first load-bearing element (34) and the second load-bearing element (35) are adapted to carry the first catenary wire (19) by form-fitting perpendicular to the direction of travel of the first catenary wire (19).

4. The system (32) according to claim 3, wherein, The first load-bearing element (34) and the second load-bearing element (35) each include a fastening portion (41) that is adapted to press the first catenary wire (19) against the form-fitting.

5. The system (32) according to any one of claims 1 to 4, wherein, The first load-bearing element (34) and the second load-bearing element (35) are respectively carried at the support beam (28) via a distance adjustment portion (39), the distance adjustment portion (39) being for adjusting the distance between the support beam (28) and the first catenary wire (19) perpendicular to the direction of travel of the first catenary wire (19).

6. The system (32) according to any one of claims 1 to 4, comprising a clamping cover (30) that is attached to the support beam (28) with a certain gap (31) on a side opposite to the first catenary wire (19) to connect to a catenary (11) carrying the first catenary wire (19).

7. A catenary crossing (24) having a first catenary wire (19) and a second catenary wire (19') that crosses or merges with the first catenary wire (19) above a railway crossing (3), comprising: - The system (32) according to any one of claims 1 to 6, - A first catenary, which carries the first catenary wire (19) and includes a first catenary portion attached to a first end of the support beam (28) and a second catenary portion attached to a second end of the support beam (28) opposite to the first end, and - The second catenary (11'), which bears the second contact wire (19') and includes a hollow portion (27) through which the support beam (28) is guided.

8. The catenary crossing point (24) according to claim 7, wherein, The hollow portion (27) is a long groove opposite to the second contact wire (19') and defined by a wall (16).

9. The catenary crossing point (24) according to claim 7 or 8, wherein, The spacer (36) is located in the groove (48) of the second catenary (11').

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