Method of controlling railway track skeleton displacement

FIELD: transport.

SUBSTANCE: invention relates to control over the state of track, particularly, to control over displacement of welded railway rail skeleton section displacement. Proposed method consists in defining the position of markers on rail skeleton relative to fixed objects (reference sleepers). Welded butts are used as said markers. Relative arrangement of selected welded butt with respect to selected reference sleeper is defined by the data of flaw detector car magnetic control channel so that signals from, say, bird pad and welded but can be unambiguously identified on defectogram. Besides their relative spatial position can be unambiguously identified by the data received from track transducer (coordinate meter) of flaw detector car. Magnitude of displacement is defined by comparing current data with that obtained before.

EFFECT: instrumental control over displacement.

1 dwg

 

The invention relates to the field of condition monitoring of railway track, in particular to methods for measuring and controlling the movement of sections of rail lashes railroad tracks, and can be used to determine whether the offset sections of rail lashes with respect to stationary objects (lighthouse sleepers). Currently, the great length of the main ways of Russian Railways used seamless path, where the rails are connected to each other in long lashes by welding. One of the most pressing issues for jointless tracks is its maintenance and operation in a period of significant changes in air temperature, which lead to increase of the longitudinal stresses in the rails (tensile winter and compressive in the summer), which is in violation of the production technology track work and maintenance of paths leads to rupture of the rod or rail to the ejection path.

The known method of control theft rail lashes on labels put oil paint on a feather foot of the rail and on the lining on the lighthouse (fixed) sleeper (section 4.2 of the Technical instructions for the device, installation, maintenance and repair of seamless path of TU-2000, approved by the Deputy Minister of Railways of the Russian Federation V.T. Semenov 31.03.2000).

The disadvantage of this method is the need for visual con the roll offset labels directly by a person or automated system, implementing this method of control (for example, patent RF №2174082, B61K 9/08). Visual inspection performed by a man, has a very low performance and can only be performed in the daytime and only if there is no snow cover. Known automated systems that implement the visual inspection method, also have several disadvantages, for example, false positives and perform control when there is snow or in the case of significant pollution of special marks.

The known method of control theft of rails on the mutual position of the bolted joint and terminal-bolt connection (the description of the invention to author's certificate No. 1786220 A1, E01B 35/00). However, the disadvantage of this method is to bind to bolted connections that, in the case of continuous welded rail way, does not make sense because of the impossibility of determining theft of the path in the middle part of the scourge. In addition, the ends of the lashes can be "breathable"and their longitudinal movement when the temperature changes are the norm.

The technical result, which directed the inventive method is the use of non-visual method of control bias rail lashes relatively lighthouse sleepers, devoid of the above disadvantages.

This technical result is achieved by the fact that DL is control shift rail lashes relatively lighthouse sleepers use magnetic data channel control car flaw detector (for example, Lysyuk B.C., Bugaenko V.M. damage to the rails and their diagnostics. - M.: ICC called "Akademkniga", 2006). It is known that magnetic control channel rails captures not only the signals from the defects, but also signals sleeper pads, as well as signals from the welded joints of rails. Using modern data processing methods of these signals can be uniquely identified. Because rail inspection car is equipped with an encoder (device coordinates), it is possible to determine the position of two objects (stationary sleeper lining and welded joints of rails), which are sources of signals relative to each other.

The proposed solution is illustrated in figure 1, which presents the spatial position of the signals 1 and 2, respectively, of the stationary tie lining lighthouse sleepers 3 and welded joints of rails 4 by changing the position of the rail scourge relatively lighthouse sleepers 3.

Consider the example of the method of control theft rail lashes railroad tracks.

The inventive method of control theft rail scourge involves obtaining primary data after laying the scourge and pinning it on continuous mode of operation. Thus determine the position of the lighthouse sleepers 3 signals 1 on the defectogram and select signals 2 coming to these sleepers welded joints 4, the Les which determine the distance L 0from the selected weld joint 4 to the lighthouse sleepers 3. In subsequent passages of the car measured length L1for a given pair of welded joint - lighthouse sleeper" compared to the L0. The difference ΔL=L0-L1will comply with theft of rail scourge regarding this lighthouse sleepers 3.

A method of measuring theft of rail lashes welded rail track based on the position of "labels" on the scourge relative to stationary objects (lighthouse sleepers), characterized in that as a "label" use of welded joints, and the determination of the relative position of the selected weld with respect to the selected lighthouse sleepers carried out according to the magnetic control channel of the flaw detector car, because the signals from objects of type "sleeper lining" and "welded joint" can be uniquely identified on the defectogram, and can be uniquely defined by their spatial position relative to each other by using the data received from detector (meter coordinates) of the flaw detector car, the magnitude of the value of theft scourge is determined by comparing the current data of the travel of the carriage with the data obtained previously.



 

Same patents:

FIELD: transport.

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FIELD: transport.

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2 tbl, 1 dwg

FIELD: transport.

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2 tbl, 2 dwgl

FIELD: transport.

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3 dwg

FIELD: transport.

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6 cl, 4 dwg

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2 cl, 11 dwg

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2 dwg

FIELD: railway transport; permanent way.

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6 cl, 6 dwg

FIELD: railway transport; permanent way testing facilities.

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4 cl, 6 dwg

FIELD: railway transport; track maintenance.

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4 cl, 5 dwg

FIELD: railway transport; permanent way.

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5 cl, 3 dwg

FIELD: railway transport.

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2 cl, 1 dwg

FIELD: railway transport.

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EFFECT: simple design of device, low cost.

3 cl, 2 dwg

FIELD: railway transport; permanent way.

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EFFECT: provision of chordless (single point) method of checking leveling of rail lines.

3 dwg

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