EP2460710A2 - Method for fastening line cables in line-rail influencing train control systems in railway tracks - Google Patents

Abstract

The method involves forming holes (4) for fastening devices on beams (2) in the center between rails (1) of a railway track, and forwardly moving a boring carriage (6) on the rails by using a motor-driven drive. Front and rear sensors i.e. inductive sensors, are provided for detecting position of the beams. The carriage is stopped and subsequently operated when the sensors detect the position of the beams, where the carriage is provided with a boring device (5) and a connection device for the fastening devices. The rails are fastened to the beams by sleeper screws.

Description

The invention relates to a method for drilling holes and / or for attaching fastening devices in these holes for the attachment of line conductors in line-train-influencing train control systems in rail lines according to the preamble of claim 1.

In the case of rail lines for train or rail traffic, the train control system Linien-Zug-influencing LZB is used. This device requires a line conductor, which runs in the track section to be tested in the middle between the two rails of the track.

To fix the line conductor between the two rails, the sleepers of the track are used. In this case, the line conductor is fastened by means of a corresponding, clip-like fastening device on every second threshold. To attach this fastener on the threshold, it is first necessary that in the threshold from above a hole is drilled. In this hole then the fastening device for the line conductor cable is used.

To introduce the holes in the thresholds so far a car is used, which is movable on the rails. The carriage has a drilling device. An operator drives the car to the desired location of the threshold, so that then the bore can be introduced. The disadvantage of this method is that always an operator is necessary to be able to move the car from threshold to threshold and also to operate the drilling device.

Based on this, the object of the invention is to provide an automatic method for drilling holes and / or attaching fastening devices in these holes for the attachment of line conductors in line-train-influencing train control systems at track distances.

The technical solution is characterized by the features in the characterizing part of claim 1.

This provides a method of automatically drilling holes and / or automatically attaching fasteners in these holes for attachment of line conductors in line-to-line train control systems at track distances. The basic idea of the invention lies in the fact that the vehicle is equipped with its working equipment with a positioning device using at least one sensor. The carriage moves on the track to be processed independently and finds its own working position, namely drilling position and / or position for introducing the fasteners. By means of the at least one sensor, a contactless detection of the thresholds or of a component of these thresholds is possible. As a result, the movement of the carriage can be derived and controlled with his work equipment and the working position. This positioning method prevents the car from overrunning the target position with its implements, even if the threshold distances are not exactly accurate.

According to the embodiment in claim 2 is preferably used as a sensor, a non-contact sensor. This has the advantage that the sensor operates wear-free. The non-contact sensor may be an inductive sensor. Alternatively, an ultrasonic sensor or a laser sensor or a miniature camera could be used, which optically detects the sleeper screw. Another alternative to the non-contact detection method is a forked light barrier. This fork light barrier also works without contact. A beam of light is sent from one fork and received by the other fork. If this light beam is interrupted, for example, by a sleeper screw, it can no longer be detected by the receiver fork. As a result, the forked light barrier triggers a switching pulse in the controller. Alternatively to the above-described non-contact method may also be a mechanical method be used, in which the switching operation is triggered by a touch, for example on the sleeper screw.

According to the embodiment in claim 3, the threshold screws are used to detect the positions of the thresholds. These sleepers are used to secure the rails to the sleepers. These sleeper screws are made of metal and are therefore ideally suited for the use of inductive sensors.

According to a preferred embodiment in claim 4 seen in the direction of travel, two sensors are used one behind the other. These two sensors move over the sleeper screws with a specific operating distance. The basic principle consists in the fact that the front sensor is first used once for the rough initial recognition of the sleeper screw. This means that the carriage is then moved further at reduced speed until the rear sensor detects the sleeper screw and thus the carriage is in the working position and stops.

The development according to claim 5 proposes a special movement management of the car, in the event that only every second threshold for the attachment of the signal cable is used. The basic principle is that after completion of work at a certain threshold, the car is first accelerated until the next threshold is reached. This next threshold is detected by the sensor. The corresponding signal is used, that the car is now decelerated until the next threshold, namely with respect to the original output threshold, the threshold after next is reached. Thus, there is a sufficient distance to decelerate the car and - especially when using two sensors - clearly locate the next position without overriding this position.

Fig. 1

eine Vorderansicht des Bohrwagens;

Fig. 2

einen Schnitt entlang der Linie A-A in Fig. 1;

Fig. 3

ein Detailausschnitt B aus der Darstellung in Fig. 2;

Fig. 4a bis 4d

der Verfahrensablauf in einer Draufsicht;

Fig. 5

ein Diagramm zur Darstellung der Bewegungsabläufe;

Fig. 6a

ein berührungsloses Detektionssystem unter Verwendung eines induktiven Sensors;

Fig. 6b

ein ebenfalls berührungsloses Detektionssystem unter Verwendung einer Gabellichtschranke;

Fig.6c

ein mechanischer Berührungssensor zum Erkennen der Schwellenschraube.

An embodiment for drilling holes for attaching fasteners in these holes for the attachment of line conductors in line-train-influencing train control systems at track distances is described below with reference to the drawings. In these shows:

Fig. 1

a front view of the drill truck;

Fig. 2

a section along the line AA in Fig. 1 ;

Fig. 3

a detail B from the illustration in Fig. 2 ;

Fig. 4a to 4d

the process flow in a plan view;

Fig. 5

a diagram illustrating the movement sequences;

Fig. 6a

a non-contact detection system using an inductive sensor;

Fig. 6b

a non-contact detection system using a forked light barrier;

6C

a mechanical touch sensor for detecting the sleeper screw.

A railway track for train or rail traffic has two rails 1, which are mounted on thresholds 2. For fastening serve sleepers 3.

In order to be able to install and fix line conductors in the middle between the two rails 1 - not shown - in line-train-influencing train protection systems on track sections, this cable is attached to the sleepers 2 by means of corresponding - also not shown - fasteners. These fastening devices are anchored in holes 4, which are located in the middle of the thresholds 2. The attachment of the signal cable on the thresholds 2 takes place on every second threshold. 2

For drilling the holes 4 is a drilling device 5. This is mounted on a carriage 6. This carriage 6 is movable on the rails 1 by means of a motor drive.

The carriage 6 has on its one side in succession two inductive sensors 7, 7 '. These sensors 7, 7 'are designed so that they emit a signal when they are in the area of the sleeper screws 3.

• Die Ausgangssituation sei in Fig. 4a dargestellt. In dieser Position befindet sich der hintere Sensor 7' im Bereich einer Schwellenschraube 3. In dieser Position des Wagens 6 hat die Bohreinrichtung 5 zuvor ein Loch 4 in die Schwelle 2 gebohrt.

The operation is as follows:

• The starting situation is in Fig. 4a shown. In this position, the rear sensor 7 'is in the region of a sleeper screw 3. In this position of the carriage 6, the drilling device 5 has previously drilled a hole 4 in the threshold 2.

In order to drill a hole 4 again in the second next threshold 2, the carriage 6 is set in computer-controlled motion and accelerated in total with the acceleration a1. until the front sensor 7 receives a signal from the threshold screw 3 of the next threshold 2 ( Fig. 4b ).

From this signal is no longer accelerated, but the achieved speed vmax is maintained until the rear sensor 7 'passes over the sleeper screw 3 ( Fig. 4c ).

With this signal of the rear sensor 7 ', the delay a2 becomes active. The carriage 6 is decelerated to the set speed v1. In this position, the front sensor 7 is in the region of the sleeper screw 3. The carriage 6 maintains this speed v1 until the rear sensor 7 'is switched by the sleeper screw 3. This keeps the carriage 6 in the new position ( Fig. 4d ). In this, the drilling device 5 can drill a new hole 4. Then the cycle starts again.

The illustrated embodiment describes the drilling of holes 4. These holes 4 serve to receive fastening devices for the line conductor. With the carriage 6, it is basically equally possible to drill holes 4 not only by means of the drilling device 5. It is also conceivable instead (or additionally) to automatically introduce the fastening devices for the line conductor into the holes 4 by means of a corresponding device.

Fig. 6a again shows a non-contact sensor 7 in the form of an inductive sensor for detecting the threshold screw 3. This non-contact inductive sensor 7 could also be replaced by an ultrasonic sensor or laser sensor or by a miniature camera, which optically detects the sleeper screw 3.

In the Fig. 6b is shown another non-contact method. Here, a fork light barrier 8 is used. The light beam is transmitted from one fork and received by the other fork. If this light beam is interrupted (in the present case by the sleeper screw 3), it can no longer be detected by the receiver fork. This triggers a switching pulse.

In Fig. 6c Finally, a mechanical process is shown. Mechanically, because the switching operation is triggered by touching a sheet on the sleeper screw 3. Touches the supernatant sheet the sleeper screw 3, a rotational movement of the sheet is carried out. As a result, the metal moves away from an inductive switch, which triggers a switching signal. This inductive switch can also by a Micro switch are replaced, which is relieved by this rotational movement and thereby switches. Other mechanical switches are conceivable.

Bezupszeichenliste

1

rail

2

threshold

3

sleeper screw

4

hole

5

drilling

6

dare

7, 7 '

sensor

8th

Light barrier

Claims (5)

Method for drilling holes (4) and / or for attaching fastening devices in these holes (4) for the attachment of line conductors in the case of line-train-influencing train control systems in the case of track sections,
the fastening device holes (4) being located on the sleepers (2) midway between the rails (1) of the track,
wherein on the rails (1) a carriage (6) is moved forward to the respective positions of the sleepers (2) and stopped upon reaching the position to then perform its work, and
the carriage having a drilling device (5) and / or a fastening device for the fastening devices,
characterized,
in that the carriage (6) has a motor drive with automatic control for advancing on the rails (1) and at least one sensor (7, 7 ') for detecting the positions of the sleepers (2),
wherein in the forward movement of the carriage (6) this is then stopped and then performs its work when the sensor (7, 7 ') has detected the corresponding threshold (2). Method according to the preceding claim,
characterized,
that the positions of the sleepers (2)
either contactless by means of a non-contact sensor (7, 7 '), in particular by means of an inductive sensor (7, 7') or an ultrasonic sensor or laser sensor or by a mini-camera or by a fork light barrier,
or by means of a mechanical switch / sensor (7)
be detected. Method according to one of the preceding claims,
characterized,
that for detecting the position of the threshold (2) by means of the sensor (7, 7 ') sleeper screws (3) are used, by means of which the rails (1) are mounted on the sleepers (2). Method according to one of the preceding claims,
characterized,
that seen in the direction of travel, two sensors (7, 7 ') are used one behind the other, wherein the front sensor (7) for the first detection of the threshold (2) is used and
the rear sensor (7 ') being used for the fine positioning of the carriage (6). Method according to one of the preceding claims,
characterized,
in that holes (4) are drilled and / or fastened at every other threshold (2),
that starting from a currently processed threshold (2) of the carriage (6) is accelerated to the next threshold (2) and
that after detecting this next threshold (2) by the sensor (7, 7 '), the carriage (6) is braked until reaching the turn again next threshold (2).

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