DE102016121363A1 - Bracket for antennas - Google Patents

Abstract

A height-adjustable mount (100, 101) for an antenna (1) has a vehicle-side part (100A) which can be fastened to a rail vehicle (500), an antenna-side part (100B) to which the antenna (1) can be fastened, and a height adjustment means (100). 2), with which a position of the antenna-side part (100B) relative to the vehicle-side part (100A) in a first direction (z) is continuously adjustable and which has a scissors lifter (2A).

Description

Technical area

The present invention relates to a holder for antennas, in particular a height-adjustable bracket for Balisenantennen of rail vehicles.

Prior art

For railway traffic, a number of safety techniques have been developed to ensure the safest and smoother operation possible. Such a track side built, punctual security technology is z. B. a so-called balise. A balise is a data transmission unit (transponder) that stores safety-relevant data on rail vehicles, e.g. Route information for the control of the tilting technology in the context of speed monitoring, transmitted. The balise may be fixedly mounted in or on the track bed, e.g. on rail sleepers, and is then excited by means of a typically vertical magnetic field when it is run over by a rail vehicle equipped with a corresponding balise antenna.

The European Train Control System (ETCS) is the basis for standardizing national train control techniques and thus an interoperable railway operation in Europe. Depending on the equipment level 1 to 3 corresponding so-called Eurobalises are used, which satisfy the ETCS specification. Similar balises are also used in China, which requires an ETCS-based Chinese Train Control System for high-speed trains.

For reliable operation, a defined vertical distance (height) of the balise antennas to the tracks or the rails is desired. However, due to the wear on the tires, since the diameter of the wheels of the rail vehicle decreases during operation, the height of the balise antennas is typically readjusted to the prescribed value at regular intervals.

In the CN 103378403A a railway vehicle antenna system is described, which has an installation base system and an antenna, which are interconnected by a height adjustment.

In addition, the describes EP 2145810 A1 a height-adjustable fastening device for use on a rail vehicle, comprising a clamping piece, the clamping piece being fastened to the rail vehicle and having a clamping surface with a clamping plate, and two clamping screws clamping the clamping plate and the clamping piece, wherein an adjusting screw is provided between clamping piece and clamping plate, which is oriented parallel to the clamping surface and thus in the vertical direction and perpendicular to the clamping screws.

Disadvantages of the prior art

The previously known solutions for the height adjustment of the balise antenna are complicated and / or only allow an adjustment of the height of the balise antenna on the track bed, which does not sufficiently compensate for the change in position of the balise antenna due to the wear of the rail vehicle wheels.

So it allows in the the EP 2145810 A1 described, height-adjustable fastening device while a person to adjust the clamping plate continuously in height. However, since the axis of rotation of the adjusting screw is perpendicular to the axes of rotation of the clamping screws to be temporarily released during the height adjustment, this manual height adjustment requires a number of different rotational movements under tight conditions. This is associated with a corresponding amount of time.

problem

The object of the present invention is to provide a reliable and easily adjustable height adjustment for antennas, in particular underfloor antennas such as balise antennas, which allows an accurate consideration of the wear of the rail vehicle wheels.

Inventive solution

The above object is achieved by a height-adjustable holder according to claim 1, a height-adjustable holder according to claim 5 and a rail vehicle according to claim 9.

According to one embodiment, a height-adjustable mount for an antenna comprises a vehicle-side part attachable to a rail vehicle, an antenna-side part to which the antenna can be fastened, and a height adjustment means with which a position of the antenna-side part is continuously adjustable relative to the vehicle-side part in a first direction and that has a scissors jack.

The term "scissors jack", as used herein, is intended to mean a lifting device or Describe carrying device having two pairs of legs or levers, wherein the legs or levers of each pair are connected to each other and rotatable to each other.

Typically, the scissors lifter also has (only) a threaded member (in particular a threaded spindle) which is arranged so that upon rotation about its axis of rotation a respective angle between the interconnected legs or levers of both pairs changes by the same amount.

This makes it possible to adjust the distance from antenna-side and vehicle-side part (with respect to the first direction) by a simple rotational movement of the one threaded member continuously and easily reproducible.

If such a holder is attached with its vehicle-side part to a car body of a rail vehicle, the height of an antenna-side part of the holder attach antenna, typically a Balisenantenne, above the track bed and thus on the track bed mounted data transmission units (transponder), typically balises, simple, reliable and very accurate. This facilitates reliable information transfer between the data transmission units and the antenna, since the vertical distance of the antenna to the transmitting devices can be adjusted accordingly and also height differences between the track bed and the car body, e.g. due to wear in the course of operation wheels of the rail vehicle, can be compensated. Such an antenna height adjustment can take place, for example, in the context of maintenance.

In order not to change the orientation of the antenna when adjusting its height, the height adjustment of the antenna may preferably be effected by a translatory displacement of the antenna. For this purpose, the antenna is preferably guided translationally. The antenna may e.g. be guided by a pair of legs or levers through which the scissors jack works like a parallel jack, i. as a lifter, which sufficiently stabilizes an object to be supported or lifted independently of the height in directions perpendicular to the first direction and / or against rotations. Thus, can be dispensed with additional guides for the antenna, since the orientation of the antenna remains virtually unchanged even during the height adjustment.

In addition, especially when using threads which are self-locking, e.g. a corresponding trapezoidal thread, to dispense with a separate locking means for position or height fixation.

However, it is also possible to use additional security elements, e.g. Clamping rings, which are placed on the trapezoidal thread.

Typically, the thread axis of the threaded member is perpendicular to the first direction.

According to a further development, the scissor lift is constructed like a scissors jack. This allows a particularly simple and robust construction of the height-adjustable bracket.

The term "scissors jack" as used herein is intended to describe a scissors jack having two (typically identically constructed) pairs of levers, each connected to a joint (the so-called knee joint), the levers also articulated at their ends are.

The distance between the knee joints to each other and thus at the same time (perpendicular) distance of the vehicle-side part of the antenna-side part can be varied in the height adjustment via rotation of acting as a threaded member threaded spindle of the scissors jack.

Due to the comparatively low weight of the balise antenna, the scissor jack can be designed for a load of 17 kg to 20 kg.

The rotation of the threaded member (for height adjustment of the antenna) can be done manually, typically by means of a control element connected to the vehicle side member and / or fixed to the car body of the rail vehicle, e.g. a winch.

A flexible shaft can be arranged between the operating element and the threaded component. Thus, the manually operated control element can be mounted particularly easily accessible. Accordingly, the effort in height adjustment of the antenna can be further reduced.

For better guidance of the flexible shaft sliding bearings can also be provided.

As an alternative to the flexible shaft, it is also possible to use a deflection gear and an optional shaft, which may be rigid.

According to a development, the height adjustment means is controllable. Also, the cost of the height adjustment of the antenna can be significantly further reduced.

For example, the threaded member can be rotated via a controllable actuator or an electric motor.

Furthermore, a deflection gear or / or a flexible shaft can be arranged between the thread-carrying component and the actuator or the electric motor.

According to an embodiment, a height-adjustable mount for an antenna comprises a vehicle-side part which can be fastened to a rail vehicle, an antenna-side part to which the antenna can be fastened, and a controllable height adjustment means with which a position of the antenna-side part relative to the vehicle-side part in FIG a first direction is infinitely adjustable.

The controllable height adjustment means may comprise a parallel jack, a motor, an actuator connected to the parallel jack, a diverter located between the engine and the parallel jack, and / or a flexible shaft disposed between the engine and the parallel jack.

The parallel jack 2A is typically a scissor lift, more typically designed like a scissors jack.

In addition, the controllable height adjusting means typically includes an interface for control of a rail vehicle or its bus connected to the motor, the actuator or a drive circuit.

Alternatively or additionally, the controllable height adjustment means may also have a switch or switch box attachable to the rail vehicle and / or even wireless, e.g. via Bluetooth, be controlled.

According to one embodiment, a rail vehicle has a car body, one of the height-adjustable brackets described herein, the vehicle-side part of which is fixedly connected to the car body, and an antenna, which is fixed to the antenna-side part of the holder.

According to a further development, the height adjustment means is controllable and the rail vehicle further has a control connected to the height adjustment means.

The above-described embodiments may be arbitrarily combined with each other.

list of figures

The accompanying drawings illustrate embodiments and, together with the description, serve to explain the principles of the invention. The elements of the drawings are relative to one another and not necessarily to scale.

• 1 zeigt eine schematische Querschnittsansicht eines Schienenfahrzeugs mit einer von einer höhenverstellbaren Halterung gehaltenen Antenne gemäß einem Ausführungsbeispiel.
• 2 zeigt eine schematische Seitenansicht des in 1 gezeigten Schienenfahrzeugs mit der höhenverstellbaren Halterung für die Antenne gemäß einem Ausführungsbeispiel.
• 3 zeigt eine perspektivische Schnittansicht einer höhenverstellbaren Halterung für eine Antenne gemäß einem Ausführungsbeispiel.
• 4 zeigt eine perspektivische Schnittansicht eines Schienenfahrzeugs mit der in 3 dargestellten höhenverstellbaren Halterung für eine Antenne gemäß einem Ausführungsbeispiel.
• 5 zeigt eine schematische Aufsicht von der Seite auf das in 4 dargestellte Schienenfahrzeug mit der höhenverstellbaren Halterung für eine Antenne gemäß einem Ausführungsbeispiel.

Like reference numerals designate corresponding parts accordingly.

• 1 shows a schematic cross-sectional view of a rail vehicle with an antenna held by a height-adjustable holder according to an embodiment.
• 2 shows a schematic side view of the in 1 shown rail vehicle with the height-adjustable holder for the antenna according to an embodiment.
• 3 shows a perspective sectional view of a height-adjustable holder for an antenna according to an embodiment.
• 4 shows a perspective sectional view of a rail vehicle with the in 3 illustrated height-adjustable support for an antenna according to an embodiment.
• 5 shows a schematic plan view from the side of the in 4 illustrated rail vehicle with the height-adjustable support for an antenna according to an embodiment.

embodiments

1 shows a rail vehicle 500 comprising a height-adjustable bracket 100 with a mounted on the bracket 100 Balisenantenne 1 in a schematic cross-sectional view. For clarity, is in 1 only a lower section of the rail vehicle 500 shown without wheels.

A vehicle-side part 100A the bracket 100 is stable on a car body 510 . 520 a rail vehicle 500 attached. The height-adjustable bracket 100 and thus the Balisenantenne 1 gets off the rail vehicle 500 over the thresholds 51 or rails 5 held or while driving the rail vehicle 500 guided.

2 shows the rail vehicle 500 with the height-adjustable bracket 100. For clarity, in 2 however, on the presentation of the balise antenna and details of the Holder 100 is omitted. In addition, in 2 only an exemplary railcar of the rail vehicle 500 shown. In the rail vehicle 500 It may be a local or long-distance train with one or more railcars. For example, the rail vehicle 500 a high-speed train designed for travel speeds of at least 160 km / h, at least 180 km / h or even at least 190 km / h.

For better orientation, Cartesian coordinate systems xyz are shown in the figures, the z-direction representing the first direction, which is typically a vertical direction, and the x-direction in the direction of travel of the rail vehicle 500 can be oriented. Accordingly, the y-direction may be an orientation of thresholds 51 correspond.

As in the exemplary embodiment of 2 is shown, the bracket 100 with the Balisenantenne behind the front in the direction of travel x bogie 502 with the wheels 501 arranged and on the car body of the rail vehicle 500 be attached.

This allows a comparatively low-jitter guiding the balise antenna 1 above the track bed and thus over the balises 52 that like in 1 is shown, typically approximately midway between the rails 5 are arranged. In addition, a balise 52 at one of the rails 5 wearing sleepers 51 be attached.

In the in 1 illustrated exemplary embodiment, the vehicle-side part 100A from a traverse, such as a profile beam or a plate, formed with the two side walls 510 the car body is firmly connected, typically by means of one or more unillustrated screw.

To the height h of the baseline antenna 1 over the balise 52 to adjust, ie the distance between the balise 52 and the baseline antenna 1 in the z-direction (first direction), is between the vehicle-side part 100A and an antenna-side part designed as a holder 100B where the balise antenna 1 fastened is, typically by means of one or more screw, a height adjustment means with a parallel jack 2A provided with a position of the antenna-side part 100B relative to the vehicle-side part 100A can be adjusted continuously in the z-direction.

Since the vehicle-side part 100A on the car body 510 . 520 of the rail vehicle 500 is attached, in this way, a distance d between the car body 510 . 520 and the balise antenna 1 (eg between the bottom of the balise antenna 1 and the bottom of a bottom plate 520 of the car body) and thus the height h in the z-direction can be adjusted continuously. This allows a reduction in the height D of the car body over the rails 5 due to a wear of the wheels and an increase in the height D due to an exchange of worn wheels by new wheels by a corresponding change of the distance d to compensate so that the height h of the baseline antenna 1 over the balise 52 remains in a desired range.

In the in 1 illustrated exemplary embodiment is the parallel jack 2A designed as a scissors jack. In the cross section shown has the parallel lifter 2A a left and a right pair of levers, wherein the levers of each pair are connected to each other at a respective knee joint. The distance between the knee joints in the y direction and thus the distance h in the z direction can be achieved by turning a threaded spindle 21 of the parallel lift 2A , which is typically arranged with the knee joints in a plane perpendicular to the first direction z, can be adjusted or changed.

The threaded spindle 21 is typically a trapezoidal threaded spindle 21 , the self-locking in the parallel lift 2A is stored.

But it can also be one or more additional on the threaded spindle 21 attached clamping rings 22 be used.

As in 1 is shown, the height adjustment means one with the threaded spindle 21 connected and controllable motor 2C exhibit. Accordingly, the height adjusting means may be controlled by the rail vehicle 500 to be controlled.

If the engine 2C on one of the floor plates 520 is attached to the car body, for example, at the bottom of the right floor panels 520 where the engine 2C For easy maintenance, can be the connection between a motor shaft of the engine 2C and the threaded spindle 21 over a flexible shaft 2 B respectively.

For improved guidance of the flexible shaft 2 B can have one or more plain bearings 23 be provided.

Instead of the flexible shaft 2 B can also be used a reversing gear.

It can also be provided instead of the engine 2C a (not shown) manually operable control element, for example, to use a typically lockable hand crank.

Typically, the hand-operated control is easily accessible at the bottom of the bottom plate 520 attached.

3 shows a height-adjustable bracket 101 with mounted antenna 1 in a perspective sectional view.

The bracket 101 is similar to that described above with reference to FIGS 1 and 2 explained bracket 100 and also has a vehicle-side part 100A , which can be attached to a rail vehicle, an antenna-side part 100B for the antenna 1 , and a height adjustment means 2A . 2 B with the location of the antenna-side part 100B relative to the vehicle-side part 100A is infinitely adjustable in the z direction.

Due to the selected bleed is in 3 only a part of the typically mirror-symmetrical to the plane in which the axis of rotation of the threaded spindle 21 lies, constructed frame construction of the vehicle-side part 100A and the box construction of the antenna-side part 100B shown.

For a detailed description of the frame construction and the box construction is omitted for the sake of clarity.

Both the frame construction and the box construction are typically made of sheet metal and / or metal beams.

4 shows a further perspective sectional view of the height-adjustable bracket 101 which on a rail vehicle 501 is attached. 5 shows a schematic plan view from the side of the rail vehicle 501 and the height-adjustable bracket 101 with the antenna 1 ,

The rail vehicle 501 is similar to the above with respect to the 1 and 2 explained rail vehicle 500 , For the sake of clarity, the 4 and 5 from the rail vehicle 501 but only one base plate 520 a car body shown.

In 4 are more details of the frame structure of the vehicle-mounted part 100A as in 3 shown. In particular, two profile beams 11 . 11 ' shown on which a consisting of two side plates and a roof plate holding structure of the vehicle-side part 100A for the scissors lifter 2A whose top can be bolted to the roof panel rests.

The profile beams 11 . 11 ' are about two side panels or side panels 12 with each other and not shown side walls of the rail vehicle 501 connected.

As through the unmarked through holes in the side panels 12 is indicated, the connection is made with the side walls of the rail vehicle 501 typically via one or more screw connections.

According to one embodiment, a height-adjustable mount for an antenna has a vehicle-side part which can be fastened to a rail vehicle, an antenna-side part to which the antenna can be fastened, and a height adjustment means, which has a parallel lift designed as a scissors jack, over which a position the antenna-side part is continuously adjustable relative to the vehicle-side part in a first direction.

While specific embodiments have been illustrated and described herein, it is within the scope of the present invention to properly modify the illustrated embodiments without departing from the scope of the present invention. The following claims are a first, non-binding attempt to broadly define the invention.

LIST OF REFERENCE NUMBERS

1

Antenna / Balise Antenna

2A

Height adjustment / scissor lift

2 B

Height adjustment / flexible shaft

2C

Height adjustment means / engine

5

rail

11, 11 '

Profile, carrier, traverse

12

Side panel / side panel

21

screw

22

clamping ring

23

bearings

51

threshold

52

Balise / Eurobalise

100A

vehicle-side part

100B

antenna-side part

500, 501

Rail vehicle / multiple unit

510

Side wall

520

baseplate

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• CN 103378403 A [0005]
• EP 2145810 A1 [0006, 0008]

Claims (10)

Height-adjustable mount (100, 101) for an antenna (1), comprising: - A vehicle-side part (100 A), which is fastened to a rail vehicle (500); - an antenna-side part (100B) to which the antenna (1) can be fastened; and - A height adjusting means (2A-C) comprising a scissor lifter (2A) via which a position of the antenna-side part (100B) relative to the vehicle-side part (100A) in a first direction (z) is infinitely adjustable. Bracket after Claim 1 wherein the height adjusting means (2A-C) comprises a reversing gear connected to the scissors lifter (2A) or a flexible shaft (2B) connected to the scissors lifter (2A). Bracket after Claim 1 or 2 wherein the height adjustment means (2A-C) comprises a manually operable control element, in particular a hand crank, connected to the scissor lift (2A), the deflection gear and / or the flexible shaft (2B). Bracket after Claim 1 or 2 wherein the height adjustment means (2A-C) is controllable; and / or wherein the height adjustment means (2A-C) comprises an actuator connected to the scissor lift (2A), and / or an engine connected to the deflection gear or the flexible shaft (2B) ( 2C). Height-adjustable mount (100, 101) for an antenna (1), comprising: - A vehicle-side part (100 A), which is fastened to a rail vehicle (500); - an antenna-side part (100B) to which the antenna (1) can be fastened; and - A controllable height adjustment means (2A-C) with the one position of the antenna-side part (100B) relative to the vehicle-side part (100A) in a first direction (z) is infinitely adjustable. Bracket after Claim 5 wherein the controllable height adjustment means (2A-C) comprises a parallel lift (2A), a motor (2C), an actuator connected to the parallel lift (2A), a diverter gear arranged between the engine (2C) and the parallel lift (2A), and / or a flexible shaft (2B) disposed between the motor (2C) and the parallel lift (2A), and / or wherein the parallel lift (2A) is a scissor lift (2A). Holder for one of the Claims 1 to 4 and 6 wherein the scissor lifter (2A) is designed as a scissor jack, wherein the scissors lifter (2A) has a rotatably mounted threaded member for adjusting the position, and / or wherein the threaded member is a threaded spindle (21), in particular a trapezoidal threaded spindle (21). Holder for one of the Claims 3 . 4 . 6 and 7 , further comprising a sliding bearing (23) for the flexible shaft (2B). Rail vehicle (500, 501) comprising: - a car body (510, 520); - A holder (100, 101) according to any one of the preceding claims, whose vehicle-side part (100 A) on the car body (510, 520) is fixed; and - An antenna (1) which is fixed to the antenna-side part (100 B) of the holder (100, 101). Rail vehicle (500) after Claim 9 further comprising a controller connected to the height adjusting means (2A-C).

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