DD212545A1 - ARRANGEMENT FOR DETERMINING THE DIMENSIONS FOR RAILING MACHINES IN TAGE CONSTRUCTION - Google Patents

Abstract

The invention relates to an arrangement for determining the size of track for track laying machines in opencast mining, where on an ungeschotterten planum parallel tracks for the propulsion of Abraumfoerderbruecken must be aligned at a defined distance from each other. The object of the invention is to use an already aligned track or a route marker as a reference line for a new track to be aligned and to create a non-contacting determination of the guideline for track maintenance in opencast mining, which works without complicated Messvorgaenge. According to the invention, the base deadbight fixed base length and tiltable optical transmitter at the ends of the base on a mounted on the track construction machine damped plane pendulum is arranged perpendicular, via angle encoder at the two base angles and the pendulum angle, which are connected to a transmitter, the distance between the zu directing track and the Leittrasse determined and determines the benchmark.

Description

title

Arrangement for determining the standard size for track-laying machines in opencast mining

Field of application of the invention;

The invention serves to determine guide sizes for track laying machines in opencast mining, where parallel tracks for the door drive of overburden conveyor bridges must be aligned at a defined distance from one another on a non-graveled flat.

It can be used where there is already an aligned track as a guide route or where line markings are available at intervals corresponding to the required measuring points along the route.

Characteristic of the existing technical solutions

To advance the overburden conveyor bridges in an open pit mine, there is always the task of laying several tracks parallel to the bridge columns. The tracks are laid ungeschottert on the roughly planed terrain, the benchmark for each reoriented track compared to the already aligned track is usually determined manually by means of measuring tape.

4134

The use of technical means is made more difficult by the track laying on a roughly planed ungraded terrain. Differences in height between the track to be leveled and the guide line, unevenness of the ground and the resulting changes in the position of the track-laying machine must enable the track alignment with a permissible tolerance.

For measuring the track width, the track height and the parallelism of railway tracks, there are various, in particular optical, measuring methods and gate directions. GB 24637 describes an "optical system" for forming datums for IT level adjustment of railway tracks. The already level track under the track construction machine is used to determine the reference height. Other methods use an optical reference axis formed adjacent to the track, outside the vehicle boundary profile. In DE-OS-283191b we d, a method and an arrangement described in which the reference axis for the duration of the measurement spatially fixed is aligned substantially parallel to the main direction of the track. In DE-QS-2553318 an arrangement is described which forms the reference line between two fixed track points.

These known measuring methods are bound to the formation of an exact reference plane or straight line, which are unsuitable for surface mining or because of difficult conditions. * There are no known non-contact measuring gauges which allow the parallel alignment of tracks on an ungraded surface.

4134

ο _Λ ο

- 3 - Object of the invention

The object of the invention is the parallel alignment of tracks on a non-gravel open pit surface5 with the aid of an already aligned track or a track marker without additional devices on the guide track.

Explanation of the essence of the invention;

The invention has for its object to provide an arrangement for non-contact determination of the benchmark for track-laying machines on an open pit along the propulsion of the AB-raumforderbrücke marked Leittrasse.

It? Height differences between the track to be straightened and the Leittrasse, unevenness of the subgrade and changes in position of the track construction machine to allow the alignment of the track in a predetermined tolerance without complicated measuring operations. This is achieved in the inventive arrangement for determining the guideline for track laying machines with a basic range of fixed base length and tiltable optical elements at the ends of the base, characterized in that the basic rangefinder known per se on a muted plane pendulum with the base

2b is arranged along the pendulum arm, which is suspended vertically on a track construction machine in the field of vision of a Leittrasse, the Pendeiarm in aligned position the pendulum axis and the tilt axes of the optical elements, the optical transmitter are arranged in the direction of travel of the track construction machine, wherein at least one tilt axis the optical elements slightly sur pendulum axis, is inclined, and that the tilting axes of the optical elements and the pendulum axis are connected via angle encoders with operating devices and an evaluation.

4134

The Leittrasse can be formed by marks lifted from the environment, as they are used to determine the advancing direction of Abraumförderbrücken - Depending on the required accuracy while the distances between the markers can be reduced. The Leittrasse can also be determined by an already aligned track »

, Sine advantageous embodiment results when the optisehe transmitter a continuous wave laser is present in the base and the laser beams are redirected by reflectors at the ends of the base on the Leittrasse.

The door parts of the invention lie in the simple structure and operability of the arrangement. I ¹ Ur the non-contact distance measurement between the track to be straightened and a routline always present in the open pit no additional devices on the Leittrasse are needed. • The machinist can, without additional optical means, by tracking two adjacent laser light points on. the Leittrasse make the straightening process of the track on the track construction machine.

Due to the advantageous suspension of the arrangement in the vertical and a safety distance above the track body and the tiltability of the base angle is ensured daJ3 height differences between the track and the Leittrasse, uneven floors, bumps, stones and the like along the base legs and changes in position of the track construction machine due to the ungeschotterten Laying the tracks have no influence on the distance measurement and the derivation of the guide size.

4134

When the machine is stopped, readiness to measure can be produced at an accelerated pace, since the vertical pendulum is independent of the proper movements of the track-laying machine. A suspension of the base at eye level of the machinist guarantees the unobstructed operation by obstructing objects on the planum, for. others, the arrangement can be better protected.

Embodiment 10

The representations, show

Pig. 1 Schematic representation of the arrangement according to the invention on a track construction machine;

Pig. 2 schematic diagram of the function of the arrangement according to the invention;

ZQ In Pig. 1, a damped plane pendulum is vertically suspended on a track construction machine (1), along which the base (in which there is a continuous wave laser (3) with 2 outputs is formed, along the pendulum arm (2) between the reflectors (4) and (5) whose rays radiate across the reflector

2t? gates (4) and (5).

The pendulum moves around the. Swing axle (6), which lies in the direction of travel. The reflectors (4) and (5) are tiltable, the tilt axes are also in the direction of travel, but at least one tilt axis is slightly inclined to the pendulum axis (fe). "About the reflectors (4) and (5), the rays of the continuous wave laser (3) are directed to the Leittrasse (Ib).

4134

17 goal:

Pig. 2 shows the basic representation of the determination of the guide values. The diagram shows the pendulum arm (2) with the reflectors (4) and (5) ₉ the continuous wave laser (3) in the base and the pendulum axis (6) via controls (10) for the angle and (11) for the angle Reflectors are tilted independently. The operating devices (10) and (11) can be coupled to this motor with angle adjusters. The angle encoders (7) for the angle, (8) for the angle and (9) for the angle are connected to a transmitter (12). The transmitter consists of a computer (13) and a setpoint memory (14).

For the determination of the directivity, the laser beams, which are deflected at a fixed base distance from each other via reflectors (4) and (5), directed to the target object of the Leittrasse (16).

For this purpose, the operating devices (7) and (8) are actuated until two laser points appear on the target point of the Leittrasse (16) side by side. This figure is achieved by slight inclination of at least one tilt axis of the reflectors (4) and (5) relative to the pendulum axis (6).

As long as the laser dots appear diagonally above each other, the setting of the BaS ₁ JSWiHkBl is not yet finished.

The machinist triggers the determination of the reference size when the adjustment of the base angle to the guide line (16) is completed. By the pendulum, it is ensured that the base is always arranged vertically. The angular position of the base angle and the pendulum angle, which represents the inclination of the track-laying machine, is removed via angle encoders (7)} (8) and (9) and transmitted to the computer (13). With the aid of the trigonometric relationships, which are calculated between the base length, the base angles and, the height h of the base above the Pußpunkt of Gl ice to be judged (15), of the Leittrasse in the computer (13).

4134

- 1 -

From the difference of the calculated distance and the value from the setpoint memory (14) results in the guide size, which is provided to the input module of the track construction machine, which presses the track in the determined direction. The machinist thus limits his work to the setting of the laser points on the Leittrasse. He has no complicated optical equipment to operate and can work with the naked eye .. In strong sunlight, however, it is appropriate to install an absorption glass strip for the entertaining visible portion of sunlight at the cabin window.

4134

Claims (4)

invention claim 1. Arrangement for determining the standard size for open pit railway trackmakers with a base fixed length rangefinder and tiltable optical transmitter at the ends of the base, characterized in that the basic rangefinder known per se is arranged on a damped plane pendulum with the base along the pendulum arm, which is vertically suspended on a track construction machine in the field of vision of a Leittrasse, the pendulum axis and the tilt axes of the optical transmitter are arranged in the direction of the track construction machine, wherein at least one tilt axis of the optical transmitter is slightly inclined to the pendulum axis and that the tilt axes of the optical elements and the pendulum axis on Angle encoders are connected to operating devices and an evaluation logic « 2. Arrangement for determining the reference size according to item 1, characterized in that the Leittrasse is formed by lifted off from the environment marks at defined intervals along the route. 3 · Arrangement for determining the RichtgröSe according to item 1, characterized in that the Leittrasse is formed by an already aligned track. 4. Arrangement for determining the standard size according to item 2 -'- or 3, characterized in that the optical transmitter are formed by a CW laser in the base and reflectors at the ends of the base. '4134