WO2016041763A1

WO2016041763A1 - Current collector device and use of same

Info

Publication number: WO2016041763A1
Application number: PCT/EP2015/069663
Authority: WO
Inventors: Reto HÜGLI
Original assignee: Kummler + Matter Ag
Priority date: 2014-09-19
Filing date: 2015-08-27
Publication date: 2016-03-24
Also published as: DE102014113594A1

Abstract

The invention relates to a current collector device comprising a slider ring assembly (12) designed for sliding current-collecting co-operation with a live contact wire (10), and comprising a contact wire collecting assembly (14, 16, 18) which is connected thereto and is pivotable therewith relative to a supporting unit (22) and which offers a guide opening widened relative to a sliding width of the sliding assembly for wiring the slider ring assembly to the contact wire. The contact wire collecting assembly has at least one arm (14, 16) having at one end a free end portion (34) and at the other end a scanning portion (26, 28, 32) for scanning of slotted link means (24), in particular resting on the supporting unit, said arm being designed such that in response to an introduction of force to the contact wire collecting assembly during wiring and during the scanning of at least one portion of a course of the slotted link means said arm carries out a folding movement for narrowing of the guide opening.

Description

Pantograph device and use of such

The present invention relates to a pantograph device according to the preamble of the main claim, as it is known from DE 10 2012 002 749 A1. Furthermore, the present invention relates to a use of such a current collector device.

Current collector devices in connection with the operating power supply of towing-wire operated vehicles are generally known from the prior art. Thus, contact wires (catenaries) are used for power supply of trolleybuses, rail vehicles or the like, with typically pantographs of such vehicles forming at the end a pantograph head for cooperation with the contact wire. As soon as the current collector bar (suitably automated or manual) is actuated to the wire, the head makes the electrical contact with the contact wire, typically with a grinder section designed for power take-off. DE 10 2012 002 749 A1, which is referred to in the generic, prior art, describes in this context a current pickup head which is typically provided at the end of a current collector rod and designed to interact with a contact wire (the generic term "current pickup device" being used in the context of the present invention In concrete terms, these consist in the prior art of a U-shaped wire structure as a safety gear, whereby a (about opposite an effective wiper width of the current collector) widened entrance opening (guide opening) for the contact wire during Andrahten (contacting) Accordingly, when the current collector arm is brought into contact with the contact wire, there is a reduced risk that inaccurate positioning may cause the intended contact position. missed a grinder on the wire and thus leads to undesirable operating conditions.

However, since such Andraht- or guide aid for the Andrahten is needed only during the Andrahtvorgangs and would lead to problems through the over the contact wire up wire assembly in a downhill driving about turnouts or other branches, it is from the prior Technique further known to bring the trolley wire catching means with means for lowering or removing the wire structure from a contact wire coverage area in the wired state.

In the prior art according to DE 10 2012 002 749 A1, this is done by a mechanically demanding gear drive, which is not only complex in production and maintenance, but, especially under adverse environmental conditions of current collectors in everyday use - such as cold, snow, rain, vibration , Wind or similar influences - is only limited reliability and the risk of malfunction brings with it.

The object of the present invention is therefore to improve a generic pantograph device, in particular to simplify a head-mounted on the pantograph device Fahrdrahtfangbaugruppe with respect to their mechanical-constructive realization, thereby increasing the reliability and in particular such a device for use under to design load-bearing environmental conditions reliably and with a long service life.

The object is achieved by the current collector device with the features of the main claim; advantageous developments of the invention are described in the subclaims. Additional protection in the frame- men of the present invention is claimed for use of the pantograph device according to the invention, which is particularly favorable end of a rod pantograph according to the invention as a pantograph head for cooperation with a contact wire for road or rail vehicles, more preferably for public transport use.

In accordance with the invention advantageously the current end of a Stromabnehmerarms or similar pantograph device with its gripper assembly on the one hand and their Fahrdrahtfangbaugruppe the other, which are pivotally mounted with each other, and in particular with respect to a contact wire course, designed so that the contact with the contact wire and the force introduced thereby on the pantograph device not only enables the pivoting from a fishing position offering an extended guide opening for simplified Andrahten in a favorable driving position grinding position on the contact wire, but this force is also stored in a power storage, realized by the further education provided spring means , So then a restoring force of these spring means in a wiring back the catch position (for a later, again simplified simplified Andrahten) produces.

According to the invention, mechanically elegant and simple, at least one arm, preferably realized as a pair of arms spanning the guide opening, is moved during this process in the trolley wire assembly so that the wide guide opening (favorable for the wire) narrows after the wire by corresponding arm movement, thus a non-disturbing storage position occupies the driving. In accordance with the invention, this is realized by a link control, formed by linkage means on the one hand, which are preferably mounted on the slider assembly. group ansitzend provided and offer a backdrop course or a slide track for scanning through a scanning section of at least one arm of the Fahrdrahtfangbaugruppe. In this case, due to the contact wire contact during Andrahten and the associated force input, not only the pivoting of the pantograph device in the (typically horizontal, a wire path of the contact wire following) driving position causes, but rather the sensing portion of the arm ensures that the the guide opening of the Fahrdrahtfangbaugruppe folding free end portion of the arm, thus occupying the desired compact, non-sweeping driving position. At the same time and advantageously according to the invention, the arm associated spring means are tensioned (so far as the applied force), so after completion of driving and a wire, ie a removal of the slider assembly from the contact wire, by action of this tensioned spring force and by corresponding return movement or return Scanning the backdrop course through the sensing portion of the arm the described back-bringing the arrangement in the (about the guide rod more inclined and compared to the trolley wire horizontal position pivoted vertically) fishing position again at the same time extended (common) guide opening takes place.

While there are in principle a variety of ways to design the invention further developing spring means for cooperation with the at least one arm of Fahrdrahtfangbaugruppe, it is nevertheless advantageous and provided in a preferred embodiment of the invention, this spring means directly on or in a rotary or pivot bearing of the arm to integrate, for example in the manner of a tension, torsion or torsion spring. In this way, for example, the scanning of the slide and thus the associated deflection of the arm (by means of its scanning section) would tension the spring, ie a force generate memory effect, which in turn is then, for the described countermovement when wiring, driving available.

In the simplest case, this complex functionality can be realized (exclusively) mechanically with only one suitable movably mounted arm, which interacts with the spring means in a force-storing manner and scans with the sliding means, a preferred embodiment of the invention being an arm pair (ie A pair of inventively designed, further education symmetrically against each other and acting together, more preferably V-shaped, the guide opening spanning arms realized) is.

Especially this preferred development with a pair of arms looks nevertheless preferred and in turn further education to design the link means as common link body, which further preferably mutually symmetrical slide tracks or gate surfaces for scanning through the respective sampling sections of the arms offers; Depending on the intended pivotal course of the arms and the configuration of the scanning sections (these may be bent, cranked or otherwise symmetrically designed), the course of a three-dimensional curve edge in the space can have the course of the path (further developing axisymmetric).

Constructively and advantageously further developing the arms, in particular in their respective free end portions, designed so that in the wired state (ie, ready for power take driving condition), the pivoting position of the pantograph achieved here causes the free end portions are outside an overlap with the contact wire ; in practical implementation, this means that the contact wire does not run in the space spanned between the free end sections, but rather, in practical implementation, above this free end portions is that yes in this position, due to the described link control, the guide opening narrowing (tapering) are folded to each other and minimize with minimal space any mechanical interference risk.

In addition, further developing and structurally advantageous, the arms implementing the guide opening are bow-like connected by a central portion, this center portion is formed for contacting by the contact wire during Andrahten, so then by this middle section of the (contact wire-induced) force entry takes place on the arrangement and thus the Pivoting as well as the other, scene-controlled movements triggers. This middle section is, in order to achieve a favorable lever arm, spaced from a pivot bearing of the pantograph device, wherein it is again favorable and preferable to provide this pivotal mounting approximately in the region of the slider assembly, as well as, possibly in combination therewith, additionally here then also a coupling can be made to one end of a rod arm or the like carrier for connection to the vehicle. At the discretion of the person skilled in the art, it is also necessary here to additionally provide pivoting about a vertical axis, for example with the purpose of having the current collector device according to the invention, in particular the slider assembly, follow a curved contact wire course in an otherwise known manner. Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and with reference to the figures; these show in Fig. 1

to

Fig. 3 different views of the current collector device according to the invention a first embodiment in a, based on a contact wire, wired state and

Fig. 4

to

Fig. 6 analogous to the representation of FIGS. 1 to 3 views of the first

Embodiment in the wired state.

The pantograph device shown in FIGS. 1 to 6 and designed to cooperate with a contact wire 10 shown by way of example in FIGS. 1 and 4 has a cross-sectionally U-shaped contact shoe 12 designed to electrically contact the contact wire, which is otherwise known acts as a (carbon) electrode. An arrangement comprising a pair of arms 14, 16 which are widened in a V-shape and pivotable relative to one another is coupled to this wiper assembly 12, wherein a static central portion 18 (as opposed to the pivotable arms 14, 16) acts as the first attack - or contact surface for the contact wire during Andrahten (in the manner to be explained in detail below) is used (and i. Ü also acts as a spark protection in otherwise known manner). Mechanical stops (not shown) limit the arm positions when connecting and disconnecting.

The arrangement of the slider assembly and trolley wire assembly is pivotable about a bottom side of the sanding pad 12 formed pivot joint 20 relative to a support unit 22 which in turn serves as a hinge and coupling for one end of an unshown in the figures and otherwise known pantograph support arm, which connects the embodiment shown in FIGS. 1 to 6 as a pantograph head to a vehicle operated by a trolley, such as a trolley bus. On the support portion 22 sits an arcuate surface piece 24 as a gate piece, which offers a good in Figs. 3 and 6 recognizable tapered edge contour for scanning by scanning arms 26 and 28, which in turn rotatably on a respective pivot bearing 30 of the trolley wire assembly with the Arms 14, 16 are connected so that a stage-like scanning or sliding along rounded probing heads 32 of the Tastarmabschnitte 26 and 28, an opening and closing movement of the respective free end 34 having arms 14, 16 causes. In addition, respective armature 14 (or 16) with scanning portion 26 (or 28) mounted on the respective pivot bearings 30 are associated with torsion springs on bearings 30 such that the probes 32 (thus spreading the probe arms 26, 28 against each other and moving the end portions 34 in the manner of folding) biases these respective springs; In other words, by spring action of these torsion springs, the arrangement shown in the V-shaped open position of the arms 14, 16 biased against each other, so that the respective probes 32 urge shown in Fig. 3, tapered gate position of the gate 24.

The operation and operation of the current collector apparatus shown in Figs. 1 to 6 of the first embodiment will be described below with reference to the direct comparison between the operating condition before the Andrahten according to FIG. 1 to 3 compared to the wired state (grinding position) of FIG .. 4 to 6 explained. As can be seen in particular from the side view of Figure 2, the coupled arrangement of the slider assembly and Fahrdrahtfangbaugruppe in the not yet wired state obliquely upwards; the arms 14, 16 are widened in a V-shape so as to be able to absorb lateral position deviations during further approach to the (typically horizontally extending) contact wire 10, even if the positioning is not completely accurate, and then guide the contact wire first to the section 18 and then to to position the sanding pad 12.

As soon as a downward force is exerted on contact of the contact wire with the arrangement, the device pivots from the obliquely upwardly oriented position of FIG. 2 into a horizontal contact. Grinding position (FIG. 5), the pivoting taking place about the usually horizontally extending pivot axis 20, which end side of the carrier unit 22 together with the grinding shoe forms the pivot joint.

Due to the force input of the contact wire to the arrangement during pivoting the Tastabschnitte 26 and 28 are pressed along the randsei- term backdrop arc of the link element 24, with the result that (against a restoring force of the provided in the pivot bearings torsion or torsion of the arms ) the Tastarmabschnitte 26, 28 widen against each other, then the arms 14, 16 of the guide opening in the manner of a convolution to move toward each other, so that the originally V-shaped guide opening to a parallel position of the arms 14, 16 (seen approximately in Fig. 4 and 6) moves. Thus, in this driving position, not only the (currently not required) arms 14, 16 accommodated space-saving and without the risk of interference, also in particular the representation of Fig. 4 in the relative position to (horizontally extending) catenary 10 recognize that the end regions the arms 34 are out of overlap with the contact wire, so therefore no collisions or the like problems may arise when driving on (trolley) switches or junctions. At the same time, the device is held in the horizontal position shown by the contact force of the contact wire on the grinding shoe, typically of the order of 70N-120N according to EN 501 19, but against a restoring force of the spring means tensioned by the link widening (FIG.

During subsequent bonding, the shoe 12 would initially be disengaged from the conduit 10 by suitable automatic or manual lowering of the illustrated pantograph device shown as a head at the end of a rod (not shown). As a result of the described spring preload, the arrangement pivots back into the obliquely upward catching position (thus, as in the comparison of FIGS. 2 and 5, a pivot-backward movement back into the non-wired starting position of FIG. 2 takes place), and During this pivoting movement by scanning the scanning sections 26, 28 of the link edge 24, from the state of FIG. 6 back to the state of FIG. 3, there is a pivoting operation of the arms 14, 16 back into the expanded V-position of FIG. 1 to 3 The arrangement is thus again ready for a subsequent re-wireing.

It is clear from the above description that with minimal mechanical effort and correspondingly highly trouble-free and reliable, the various movement processes when connecting and disconnecting can run coordinated with each other. In particular, compared to the cited as generic form of the prior art, this not only results in advantages in production and manufacturing costs, also in practical operation a drastically simplified maintenance associated with higher operating times.

Claims

Pantograph device with

a slider assembly (12) formed for dragging down-streaming engagement with a live contact wire (10);

and a driving wire catching assembly (14, 16, 18), which is connected to the latter and can be pivoted relative to a carrier unit (22) with respect to a wiper width of the wiper assembly, offering an extended guide opening for wire-feeding the wiper assembly to the contact wire.

characterized in that

the traveling wire catching assembly has at least one arm (14, 16) having at one end a free end section (34) and at the other end an arm (14, 16) for scanning linkage means (24), in particular sitting on the carrier unit;

which is designed such that it performs a folding movement for narrowing the guide opening in response to a force occurring in the Andrahten force input to the trolley wire assembly and scanning at least a portion of a slide course of the guide means.

Apparatus according to claim 1, characterized in that the at least one arm and the trolley wire catching assembly are formed so that the force input causes the pivoting of the slider assembly with ansangsender Fahrdrahtfangbaugruppe in a grinding position parallel to a contact wire course, being tensioned on the arm spring means, the so are trained that in a wiring by spring force of the spring means a pivoting opposite pivotal movement and controlled by the sliding means extension of the guide opening is effected.

Apparatus according to claim 1 or 2, characterized in that the spring means as a rotational or pivot axis of the at least one arm (14, 16) associated with tensile, rotary and / or torsion spring are formed.

Device according to one of claims 1 to 3, characterized in that the Fahrdrahtfangbaugruppe for forming the guide opening comprises a pair of preferably V-shaped pivotally mounted against each other of the arms, which are designed to cooperate with the jointly provided for the pair of arms connecting means.

Apparatus according to claim 4, characterized in that the slide means (24) for scanning by respective tactile portions of the pair of arms symmetrically, in particular axisymmetric, trained and mutually arranged slide tracks and / or backdrop surfaces.

Device according to one of claims 1 to 5, characterized in that the guide means comprise an arcuately shaped body or surface element (24) whose three-dimensional curve descriptive edge is designed for scanning through the scanning portion of the arm.

Device according to one of claims 1 to 6, characterized in that the at least one arm of the Fahrdrahtfangbaugrup- Pe is formed so that at least the free end portion (34) is in a contact state of the slider assembly on the contact wire (10) outside an overlap with the contact wire. Device according to one of claims 1 to 7, characterized in that between two arms of the trolley wire catching assembly, a center portion (18) is provided so that in the Andrahten the pivoting of the trolley wire assembly and the slider assembly in response to a Kraftabeaufschlagung the Mittelab- section through the contact wire he follows.

Device according to one of claims 1 to 8, characterized in that the Tastabschnitt (26, 28) of the preferably cranked and / or provided with a bend arm portion at a mating end for the sliding means comprises a probe head (32) and / or the sliding means self-lubricating are formed and / or offer lubricant for the interaction with the Tastabschnitt.

Device according to one of claims 1 to 9, characterized in that the slider assembly having a swivel joint has a receptacle for connection to a support arm as a carrier unit.

Use of the pantograph device according to one of claims 1 to 10 for the power supply of a road or rail vehicle, in particular for public transport.