DD212931A1 - MEASURING ARRANGEMENT FOR MONITORING RAIL TRACKS - Google Patents

Abstract

The invention relates to a measuring arrangement for monitoring railway tracks, in particular craneway tracks. The invention aims to provide a simple operable and easily implementable measuring arrangement for tracks, which works with high accuracy while saving working time. The object of the invention is to realize a measuring arrangement with a dynamic emfooring system in which a continuous and / or discrete Follow-up of the light beam receiver in the horizontal and vertical direction to determine the deviations of the position of a track during the driving movement of the metrology is done. According to the invention, the measuring receiver consists of a 4-quadrant photodiode, which is continuously guided along a measuring path such that the center of gravity of the light beam axis is continuously in the center of the photodiode. The photodiode is thereby guided in the horizontal direction via an angular movement and in the vertical direction linearly or vice versa. The Messempfaenger is rotatably mounted on the measuring carriage with respect to the light beam axis. In a special embodiment, the axes of movement of the measuring receiver can be fixed.

Description

for if *

a) Title of the invention

Measuring arrangement for monitoring railway tracks

b) Field of application of the invention

The invention relates to a measuring arrangement for monitoring railway tracks, in particular crane rail tracks.

c) Characteristic of the known technical solutions

In the D3-Q5 283191 S <?? ird means sum measuring the position of a track described wherein represents a spatially fixed Lichtstrahlbesugsachse parallel -sum track generated v? Ird "Within the light beam is a mobile measuring device on the track of the measuring point to measuring point moves The measurement receiver consists of a zv / eidimensioalalen photodiode, which with the help of a, with svjei perpendicularly arranged Yarsehiebeelementen equipped tracking device horizontally and vertically moves raircl so that the Liohtschv / dpunkt coincides with the diode center * From the displacement signals of the displacement elements and the Hesssignal the Ueigungsaufnehmers the position of the rail profile is determined at each measuring point with respect to the Lichtatrahlachee «

The measuring device has the iachteilj that the situation be mood of the track only at certain Meßstsllen done and the device technically effort is large * In addition, the device is only applicable for one *,

M / h .1,

d) Object of the invention

The aim of the invention is to provide an easy-to-use and easily implementable measuring arrangement for tracks which operates with high accuracy while at the same time saving working time.

e) Presentation of the essence of the invention

The object of the invention is to realize a measuring arrangement with a dynamic receiver system in which a continuous and / or discrete tracking of the light beam receiver takes place in the horizontal and vertical directions for determining the deviations of the position of a track during the driving movement of the measuring device.

According to the invention, the measuring receiver consists of a 4-quadrant photodiode, which is continuously guided along a measuring path so that the center of gravity of the light beam axis is continuously in the center of the photodiode. The photodiode is thereby guided in the horizontal direction by an angular movement and in the vertical direction by a linear or reverse vector. The measuring receiver is rotatably mounted on the measuring carriage with respect to the light beam axis. In a particular embodiment, the movement axes of the measuring receiver can be determined.

f) embodiment

The invention will be explained in more detail with reference to an exemplary embodiment

1 is the front view of the measuring arrangement, Figure 2 is the side view of the measuring arrangement. The rail-mounted device consists of a measuring carriage 1 with drive, two horizontally arranged rollers 2, two Seitenführuagsr-ollen 3 on the right and left side, radio remote control receiver, telemetry transmitter, Bank corp sensor assembly and an electro-optical receiving system 4 "on the base plate 5 of the scale carriage, the horizontal rollers 2, one of which is coupled to the traction drive, fixed and the side guiding

roll 3 measurably adjustable to adapt to the respective rail head width 6, mounted.

About the! Install- and spring assemblies 7, the side guide rollers 3 on one side of the trolley can be set either as a guide rollers fixed or as pressure rollers resilient ·

The electro-optical Smpfangsanlage 4 consists of the modules of two-dimensional light receiver in the form of a 4-quadrant photodiode 8, with vertical tracking and electro-mechanical drive 10, rotary arm 11 with horizontal rotation mechanism 12 and electro-mechanical drive 13 and electronic components for controlling the 7ertikalnachführeinrichtung. 9 and the horizontal turning mechanism 12 of the photodiode 3 ·

For measuring the horizontal and vertical position of a railway track, z. As a crane track rail 14, a light source via suitable erection devices fixedly mounted on the crane rail track 14 at an end point or at any other point within the crane runway system «

Zvjeckmäßigervjeje is used as a light source, a per se known laser ventilation device. The laser alignment device is aligned so that the laser beam 15 serves as a space-focussed measuring axis for the crane track rail.

The device according to the invention is placed at any point on the crane track rail 14 and the photodiode 8 of the electro-optical Smpfangsanlage 4 via the Vertikalnachführeioriohtung 9 and the horizontal rotation mechanism 12 adjusted so that the center of the 4-quadrant photodiode is in the center of a laser beam cross section «

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With a conventional punk remote control system, the measuring carriage 1 is driven from any location in the Hahbereich the crane runway from the respective measuring points on the crane rail track »

To measure the horizontal and vertical position of the crane track rail 14, the laser alignment device and the electro-optical reception system 4 are set up and aligned on the measuring carriage 1 in the manner described.

Occurs in the process of the measuring carriage from one measuring point to another deviation of the center of the potodiode 8 from the center of the Laser3trahlachee 15, this deviation is registered by the photodiode 8 with high accuracy, the measuring signals of the potentiometer 8 are processed by appropriate electronic assemblies such in that they serve to automatically process the potodiode 8 via the vertical tracking device 9 and the horizontal mechanism *

The photodiode is readjusted until the center of the potentiometer coincides with the center of the laser radiation. From the respective displacement of the potentiometer 8 in the horizontal and vertical direction, the positional deviation of the crane track rail at height ΔΈ and side AS is obtained »

Falsifications of the orientation due to lateral inclination of the measuring device due to unilaterally abgefahrener rail head profiles or tilting of the crane track rail are determined by a electronic Qserneigungskompensationsbaugruppe and there is an automatic correction of the measured values ΔΕ and AS * The dynamics of the tracking control loop allows accurate continuous tracking of the potentiometer even during the ride of the measuring carriage 1 from a measuring point sum other =, From the Meßviagen 1, the corrected measured values (CNS and uH) of the crane rail 14 via a mounted on the measuring carriage 1 Telemetri eras he zura Telemetrieeiapf anger, located at the location of the Punkfernsteuersendera or on a

In order to register the measured values, suitable measuring equipment such as electronic measuring memory, magnetic tape storage, printer or recorder can be connected to the measuring display or can be entered manually in measurement forms.

With the gate direction according to the invention for measuring the crane track rails or other train tracks two different measurement methods are applicable.

a) Discrete measurement method

The measuring carriage 1 is moved from the measuring point to the measuring point via the punk remote control system. A transmission of the measured values 43 and ΔΕ determined by the electro-optical receiving system takes place at the respective measuring points, the measuring carriage 1 being at a standstill.

b) continuous measuring method

The measuring section 1 is put into operation via the punk remote control system and travels at an approximately constant traveling speed on the crane track rail 14. During the travel of the measuring carriage 1, the photodiode is automatically tracked by the vertical and horizontal tracking device to the laser beam 15. The continuously occurring measured values 4 S and ΛΕ can be transmitted either continuously or at variably adjustable time intervals.

Claims (3)

Srfindungsanspruch; 1 · Measuring device for monitoring railway tracks, consisting of a light beam generated parallel to the track as a reference axis, a movable on the track Meßvfsgen with a Heigungskompensator and a measuring receiver with a photodiode on the measuring carriage via a tracking device in each measuring point horizontally and vertically in the Moving the light beam reference axis moves if the position of the track, the height and the side is determined by auaden path signals, characterized in that the measuring receiver consists of a 4-quadrant potodiode (8) along a measuring path continuously in horizontal ochtung over a Angle movement and in the vertical direction linear or vice versa is performed so that the center of gravity of the light beam axis (15) is continuously in the center of the photodiode (8). 2. Measuring arrangement according to item 1, characterized in that the Maßempfänger with respect to the light beam axis (8) is rotatably mounted on MeßväAgen (1) « 3 · measuring arrangement according to point _e 1, characterized in that the movement axes are fixed the measuring receiver ·, r this purpose, 1 sheet of drawings -