DE10240435B4 - Device for holding and adjusting the height of the contact wire during the trolley train - Google Patents

Abstract

Device for holding a contact wire of a catenary on a supporting cable during pulling and guying of the contact wire, characterized in that the contact wire during a pulling and unclamping
- Is guided over at least one in the drawing and guying direction rotatable guide roller,
- which is attached to a bracket construction, wherein the bracket construction is mounted on the support cable,
- Over the guide roller or guide rollers running contact wire is secured by means of a lock against a possible falling out, which is infinitely adjustable in height attached to the bracket construction and has a clamping device which locks the lock on the bracket construction when the lock mounted in its final position is.

Description

The The invention relates to a device for holding a contact wire a catenary on a carrying cable during a pulling and unclamping of the Contact wire and to its height adjustment after pulling and unclamping. The pulling and unclamping of the contact wire takes place when new equipment or replacement of the contact wire of the overhead line. Overhead lines, to which the invention relates, find their application especially in railways and trolleybuses, so-called. O-buses.

The Catenary, especially of full tracks, is usually in the Form of a chain overhead line running out of contact wire, carrying rope and hangers consists. Hereby contributes the suspension rope with the help of hangers the contact wire, causing a sag of the contact wire due its own weight is almost balanced. In addition is the contact wire during its operation under a mechanical tension in the longitudinal direction laid. This mechanical tension is applied to the two ends of the Contact wire generated by tie bars, where the contact wire with Weights, especially concrete weights, is stretched. Task of Mechanical bracing of the contact wire is that the contact wire at temperature increase preferably little bends down between the individual catenary support points.

at New installation or replacement of the contact wire of the catenary of a Route will be the contact wire first movable at a certain distance under the suspension rope at already attached guyed guy rope. Is the contact wire between two Entspannwerken complete misplaced, he is mechanically at its two ends to the final, from dependent on the superstructure type Operating tractive force tautened. Here, the contact wire moves in the movable bearings by up to 90 cm. When reaching the final traction and thus the final one Location of the contact wire becomes the movable attachment of the contact wire on the carrying rope through the firmly trapped in carrying rope and contact wire trailer replaced. The respective length a hanger is due to sagging dependent of the suspension rope from its position between the respective catenary bases.

was standing The technique is that the new contact wire during pulling and guying with brackets made of copper wire on the suspension rope in tension and guy direction is movably secured, wherein the brackets at a distance of about 6 m apart. The brackets are made of copper wire Made on site and brought to the appropriate length by the copper wire tensioned between the support cable and the contact wire and repeatedly around the suspension cable and contact wire is wound. So they only require a lot low logistic effort.

• – Der Fahrdraht wird bei dem Ziehen durch die Halterung mit Kupferdraht häufig mechanisch beschädigt. Hierdurch treten Unebenheiten an der Kontaktfläche Fahrdraht – Stromabnehmer auf, die sich im Laufe der Betriebszeit vergrößern, zu einem Lichtbogen und Abbrand zwischen Fahrdraht und Stromabnehmer führen und damit die Liegezeit des Fahrdrahtes verkürzen.
• – Der Fahrdraht kann sich in der Halterung aus Kupferdraht verklemmen, so dass sich beim Ziehen und Abspannen häufig die Kupferdrähte schräg stellen. Dies ist vor allem in Kurven der Strecke grundsätzlich gegeben, in denen die Zug- und Abspannrichtung des Fahrdrahtes leicht schräg gegenüber der Zug- und Abspannrichtung in der Geraden ausgerichtet ist. Folge ist ein Kontrollaufwand nach dem Ziehen und Abspannen des Fahrdrahtes, um die Lage der Halterungen aus Kupferdraht zu überprüfen und gegebenenfalls wieder in ihre erforderlichen Lage zu bringen. Erst dann ist eine Übernahme des Fahrdrahtes auf das Abspannwerk möglich.
• – Durch das Verklemmen des Fahrdrahtes in der Kupferdrahtbefestigung treten z.T. Knicke im Fahrdraht auf. Folge ist ein Kontrollaufwand nach dem Ziehen und Abspannen des Fahrdrahtes, um den Fahrdraht gegebenenfalls wieder knickfrei zu ziehen. Erst dann ist eine Übernahme des Fahrdrahtes auf das Abspannwerk möglich. Desweiteren schädigen die Knicke das Material des Fahrdrahtes nachhaltig, wodurch sich die Liegezeit des Fahrdrahtes verkürzt.
• – Eine Höhenregulierung des Fahrdrahtes mit den Halterungen aus Kupferdraht ist sehr aufwendig. Hierzu werden die Halterungen wieder geöffnet, die Höhe reguliert und die Halterungen wieder geschlossen.
• – Die Weiterverwendung des Kupferdrahtes der Halterungen ist nicht möglich, nach Einbau der Hänger werden die verwendeten Kupferdrähte verschrottet.

However, this advantage of the prior art is counteracted by several disadvantages:

• - The contact wire is often damaged mechanically when pulled through the bracket with copper wire. As a result, unevenness occurs at the contact surface contact wire - pantograph, which increase in the course of the operating time, lead to an arc and burnup between the contact wire and pantograph and thus shorten the waiting time of the contact wire.
• - The contact wire can jam in the holder made of copper wire, so that when pulling and clamping often the copper wires are inclined. This is basically given in curves of the route in principle, in which the tensile and guying direction of the contact wire is slightly obliquely aligned with respect to the tension and guying in the straight line. Result is a control effort after pulling and unclamping the contact wire to check the position of the brackets made of copper wire and, if necessary, bring them back to their required position. Only then is a takeover of the contact wire on the substation possible.
• - By jamming the contact wire in the copper wire attachment occur sometimes kinks in the contact wire. Result is a control effort after pulling and clamping the contact wire to pull the contact wire again, if necessary, kink-free. Only then is a takeover of the contact wire on the substation possible. Furthermore, the kinks sustainably damage the material of the contact wire, which shortens the lying time of the contact wire.
• - A height adjustment of the contact wire with the brackets made of copper wire is very expensive. For this purpose, the brackets are opened again, the height regulated and the brackets closed again.
• - The reuse of the copper wire of the brackets is not possible, after installation of the trailer, the copper wires used are scrapped.

So far, these mentioned disadvantages of the prior art by the operator of the route and contracting the construction or maintenance measure on the overhead line due to the financial savings during the construction taleriert increasingly considered the Betriber the route and client of the construction and maintenance of the overhead line However, not only the costs during the construction phase but also the operating costs of the line and the following costs for the maintenance of the overhead line, the so-called Life-Cycle-Costs LCC. Measures and devices Although these reduce construction costs and subsequently unduly increase operating costs and maintenance costs, they can no longer be accepted in the future.

Out DE 526 889 C is a method of trolley installation known in which the contact wire is not temporarily fixed by a laying vehicle, but already laid under bias and immediately fixed permanently on the trailer of the supporting cable. As a result, temporary attachment means are not required on the support cable. Disadvantage of this method is, however, that in case of any necessary retightening of the contact wire after completion of laying all hangers must be individually reopened and readjusted. This creates a considerable effort for reworking.

• – Das Kabel muss mit seiner gesamten Länge von mehreren hundert Metern bis mehreren Kilometern durch die Rollen gezogen werden. Dies erfordert präzise gefertigte Rollen mit einer sehr geringen Rollreibung, die für hohe Traglasten dimensioniert sind. Die verwendeten Rollen sind demzufolge teuer sowie aufwendig in ihrer Herstellung und Wartung.
• – Durch die unterschiedlichen Orte der Trommel von der das Kabel abgewickelt wird und dem Personal, das das Kabel verlegt, ist ein erhöhter Aufwand von Personal sowie eine exakte Abstimmung der Abwickelgeschwindigkeit der Trommel und dem Verlegepersonal erforderlich.

Out US 4,475,715 is a method for laying cables, in particular television cables on masts known in which the laying of cables is done from a stationary cable drum. Here, first be attached to a support rope rollers and pulled over this cable. Disadvantages of this method are:

• - The cable must be pulled through the rollers with its entire length of several hundred meters to several kilometers. This requires precisely manufactured rollers with a very low rolling friction, which are dimensioned for high load capacities. The roles used are therefore expensive and expensive in their production and maintenance.
• - Due to the different locations of the drum from which the cable is handled and the staff who laid the cable, an increased effort of personnel and an exact coordination of the unwinding speed of the drum and the laying staff is required.

It It is therefore an object of the invention to provide a simple device, which, with little effort, the contact wire during the Pulling and guying on the supporting cable in tensile and guying direction movable fastened without damaging it and other parts of the overhead line and without jeopardizing the safety of the workforce and a simple height adjustment of the contact wire after pulling and unclamping allows.

• – Durch das Abrollen des Fahrdrahtes auf mindestens einer Führungsrolle wird der Fahrdraht nicht beschädigt und somit schonend verlegt. Hierdurch erhöht sich die Liegedauer des Fahrdrahtes, verringern sich die Kosten für Instandhaltung und verlängern sich die Wartungsintervalle des Fahrdrahtes.
• – Durch die kontinuierlich rollende Bewegung des Fahrdrahtes auf mindestens einer Führungsrolle kann sich der Fahrdraht nicht in der Vorrichtung verklemmen, so dass der Fahrdraht immer von selbst in seiner erforderlichen und endgültigen Lage positioniert bleibt. Ein Kontrollaufwand nach dem Ziehen und Abspannen des Fahrdrahtes ist nicht erforderlich.
• – Weiterhin wird durch die kontinuierliche Bewegung des Fahrdrahtes auf mindestens einer Führungsrolle ein definiertes Abspannen ermöglicht.
• – Durch eine Verriegelung, die höhenverstellbar an der Bügelkonstruktion befestigt ist, wird ein mögliches Herausfallen. des Fahrdrahtes aus der Bügelkonstruktion sicher verhindert. Die Verriegelung ist zusätzlich drehbar um die Bügelkonstruktion angebracht, um ein Herausnehmen des Fahrdrahtes aus der Bügelkonstruktion zum Einspannen in die Seitenhalterklemme zu ermöglichen.

This object is achieved in connection with the preamble of the main claim according to the invention by the features specified in claim 1. Advantages of the invention over the prior art are,

• - By rolling the contact wire on at least one guide roller of the contact wire is not damaged and thus laid gently. This increases the service life of the contact wire, reduces the cost of maintenance and extend the service intervals of the contact wire.
• - Due to the continuous rolling movement of the contact wire on at least one guide roller, the contact wire can not jam in the device, so that the contact wire is always positioned by itself in its required and final position. A control effort after pulling and unclamping the contact wire is not required.
• - Furthermore, a defined clamping is made possible by the continuous movement of the contact wire on at least one guide roller.
• - By a lock that is height adjustable attached to the bracket construction, is a possible falling out. the contact wire from the bracket construction safely prevented. The lock is additionally rotatably mounted around the stirrup structure to allow removal of the trolley wire from the stirrup structure for clamping in the side holder clamp.

To Claim 2 is at least one of the guide rollers made of a softer Material manufactured as the material of the contact wire. Advantage is here an additional Protection of the contact wire, since during pulling and guying the material of a leadership role and not the contact wire wears off.

claim 3 includes an advantageous embodiment for claim 2. As material for The contact wire is usually used copper because of its conductivity. The specified in claim 3 metal brass for at least one of the guide rollers is a softer material than copper and thus leads to the benefits of claim 2.

Claims 4 to 6 contain advantageous embodiments for the Form at least one of the guide rollers. In particular, by a recess in the direction of rotation at least one of the leadership roles and / or by a trained in hyperboloider or parabo loider form Ensures leadership, that the contact wire especially in the middle of the appropriate leadership role guided becomes. Advantage of this embodiment is an improved leadership of the contact wire without contact the side parts of the stirrup construction.

Claims 7 to 11 include advantageous embodiments for the Ironing construction also for the shape of the upper end of the stirrup construction, with the bracket construction hung in the suspension cable becomes.

According to claim 7, the upper end of the Bü gel construction formed as a hook. For this purpose, the bracket construction is bent at its upper end hook-shaped. Advantage of this device is that no additional part for hanging the bracket construction must be attached to the support cable to the bracket construction. Furthermore, the hook can optionally be nachgebogen with simple means according to the circumstances of the supporting rope on site. According to claim 8, the hook is formed as a beta-hook by the hooks - in particular semi-circular shaped - a straight, obliquely downwardly directed and in particular 12 cm long leg of the stirrup construction connects. The advantage of the beta-hook is that it can be hung quickly and safely in the suspension cable. In particular, the beta hook prevents an automatic unhooking of the stirrup construction during vibrations of the supporting cable.

claim 9 indicates that in the hook of claims 7 and / or 8 a slip guard is appropriate. This slip guard vehindert a slip of the Hook construction on the carrying rope and holds the hook construction and thus the leadership at their required position. In an advantageous embodiment From claim 10, the anti-slip device made of plastic, in particular Rubber, executed.

To Claim 11 is the bracket construction Made of round steel. The advantage here is that the bracket construction With little effort on site - especially by hand - bent can be. Furthermore, guaranteed execution made of round steel - in particular unlike an execution made of square steel -, that for the case that the contact wire during of pulling and unrolling unintentionally touches the strap construction, the Contact wire not damaged becomes.

In Claim 12 is stated that the total length of the bracket construction - measured from its lower end to its upper end - to the distance between the suspension rope and contact wire is adapted to the particular location at which the bracket construction hung in the suspension cable is. As a result, the contact wire is already near his final Position positioned.

One advantageous embodiment for the total length of the Ironing construction is specified in claim 13, wherein the total length of the Ironing construction either 800 mm or 1350 mm or 1800 mm. Advantage of the three full length is that to the usual lengths the trailer are adjusted, so that during assembly by the assembly staff only the choice must be made between three predetermined lengths and no adjustments have to be made.

To Claim 14, the locking of the bracket construction is made, that they also regulate altitude of the contact wire for mounting the trailer of the chain mechanism Completion of the pulling and guying of the contact wire is to be applied. Advantage of this device is that immediately after completion of pulling and tightening the contact wire, start the height adjustment of the contact wire can. Therefor will be the same device as for pulling and unclamping used the contact wire. It will only be the contact wire from the lead role or the guide rollers lifted to the lock, with the then the contact wire can be fastened steplessly in the required height.

The invention will be described below with reference to the embodiments of 1 and 2 explained in more detail. The figures show in

1 , a guide roller with the stirrup construction and the locking during the pulling and guying of the contact wire,

2 the guide roller with the bracket construction and the lock during the height adjustment of the contact wire.

• 1. Die Stellen der Oberleitung, an denen die Hänger eingebaut werden sollen werden markiert.
• 2. Für die jeweilige Stelle wird die Bügelkonstruktion (2) mit der entsprechenden Gesamtlänge ausgewählt und mit dem Beta-Haken (3) der Bügelkonstruktion in das Tragseil (9) eingehängt. Dabei verhindert die Rutschsicherung (4) ein selbstständiges Rutschen der Hakenkonstruktion auf dem Tragseil während der Ziehens und Abspannens.
• 3. Besteht die Gefahr des selbstständigen Aushängens des Beta-Hakens bei möglichen Schwingungen des Tragseils, so wird der Beta-Haken von Hand nachgebogen.
• 4. Die Verriegelung (5) wird geöffnet, indem die Klemmvorrichtung der Verriegelung (5) mit der Stellschraube (9) geöffnet wird, die Verriegelung nach oben geschoben und zur Seite gedreht wird.
• 5. Daraufhin wird der Fahrdraht auf die Führungsrolle (1) in die Position (1) während des Ziehens und Abspannens gelegt und die Verriegelung (5) wieder geschlossen.
• 6. Nachdem der Fahrdraht in alle relevanten Vorrichtungen eingelegt worden ist, wird der Fahrdraht an seinen beiden Enden abgespannt.
• 7. Hat der Fahrdraht seine, von der Oberbauart abhängige Betriebszugkraft erreicht, wird die Verriegelung (5) der Bügelkonstruktion entsprechend Punkt 4 geöffnet, und die Verriegelung entsprechend 2 an der Bügelkonstruktion mit der Stellschraube der Klemmvorrichtung befestigt.
• 8. Der Fahrdraht wird von der Führungsrolle auf die Verriegelung (5) in die Position (8) während der Höhenregulierung gehoben.
• 9. Die Höhenregulierung des Fahrdrahtes (8) erfolgt, indem der entsprechende Abstand zwischen Fahrdraht und Tragseil (9) ermittelt und mit der Verriegelung (5) eingestellt wird.
• 10. Nun erfolgt der Einbau der Hänger, woraufhin der Bügelkonstruktion wieder entfernt werden kann.

In 1 is a leader ( 1 ) with the bracket construction ( 2 ), the height-adjustable lock ( 5 ) and the clamping device during the pulling and guying of the contact wire ( 6 ) as in 2 during the height adjustment of the contact wire ( 8th ). Here, the contact wire moves perpendicular to the plane of the drawing. The installation of the contact wire of the overhead line to the support cable ( 9 ) with the aid of the device according to the invention takes place as follows:

• 1. The places of the overhead line on which the hangers are to be installed are marked.
• 2. The bracket construction ( 2 ) with the appropriate total length and with the beta hook ( 3 ) of the stirrup construction in the supporting cable ( 9 ). The slip protection ( 4 ) an independent sliding of the hook construction on the supporting cable during pulling and unclamping.
• 3. If there is a risk of the self-releasing of the beta-hook with possible vibrations of the suspension rope, the beta-hook is bent by hand.
• 4. The lock ( 5 ) is opened by the clamping device of the lock ( 5 ) with the adjusting screw ( 9 ) is opened, the lock is pushed upwards and turned to the side.
• 5. The contact wire is then placed on the guide roller ( 1 ) in the position ( 1 ) while pulling and guy down and the lock ( 5 ) closed again.
• 6. After the contact wire has been inserted into all relevant devices, the contact wire is guyed at both ends.
• 7. If the trolley wire has reached its service-dependent on the type of superstructure, the locking ( 5 ) of the stirrup construction according to point 4, and the lock accordingly 2 attached to the bracket construction with the adjusting screw of the clamping device.
• 8. The contact wire is moved from the guide roller to the lock ( 5 ) in the position ( 8th ) lifted during height adjustment.
• 9. The height adjustment of the contact wire ( 8th ) takes place by the appropriate distance between contact wire and carrying cable ( 9 ) and with the lock ( 5 ) is set.
• 10. Now the hanger is installed, whereupon the stirrup construction can be removed again.

1

leadership

2

Ironing construction

3

Beta-hook

4

slipguard

5

lock

6

position of the contact wire during pulling and unclamping the

contact wire

7

axis of rotation for the leadership

8th

position of the contact wire during the height regulation of the contact wire

9

screw

Claims (14)

Device for holding a contact wire of a catenary on a support cable during pulling and guying of the contact wire, characterized in that the contact wire is guided during a drawing and unwinding - at least one in the drawing and guying direction rotatable guide roller, - which is attached to a bracket construction , wherein the stirrup construction is mounted on the support cable, - is secured via the guide roller or guide rollers running contact wire by means of a lock against a possible falling out, which is infinitely adjustable in height attached to the stirrup construction and has a clamping device which locks on the stirrup construction locked when the lock is in its final position. Device according to claim 1, characterized in that that at least one of the guide rollers made of a softer material than the material of the contact wire is. Device according to claim 2, characterized in that that at least one of the guide rollers made of brass. Device according to one or more of claims 1 to 3, characterized in that at least one of the guide rollers is cylindrically shaped. Device according to one or more of claims 1 to 4, characterized in that at least one of the guide rollers is cylindrically shaped and a recess in the direction of rotation of the guide roller to the leadership of the contact wire in the transverse direction of the guide roller. Device according to one or more of claims 1 to 5, characterized in that at least one of the guide rollers is formed in hyperboloid or paraboloidal form. Device according to claim 1, characterized in that that the top end of the stirrup construction as a hook for hanging is formed in the support cable. Device according to claim 7, characterized in that that the hook is designed as a beta-hook, by addressing the - isobesondere Semicircular shaped - hoes a straight, oblique downwardly directed leg of the bracket construction connects. Device according to one or more of claims 7 and 8, characterized in that in the hook a slip guard is appropriate. Device according to claim 9, characterized in that that the anti-slip device is made of plastic. Device according to one or more of claims 1 to 10, characterized in that the bracket construction made of round steel is made. Device according to one or more of claims 1 to 11, characterized in that the total length of the bracket construction to the distance is adjusted between support cable and contact wire. Device according to claim 12, characterized in that that the strap construction in an overall length of either 800 mm or 1350 mm or 1800 mm. Device according to one or more of claims 1 to 13, characterized in that the continuously height-adjustable locking with Clamping device of the bracket construction is manufactured as a bracket construction for receiving the contact wire.