Method of determination of clearance between ridge of railway wheel and rail head and device to effect determination

FIELD: transportation.

SUBSTANCE: invention relates to the equipment for measuring railway rails and wheels. The method of determination of the clearance between the railway wheel ridge (2) and rail head (1) includes attaching a pickup with its sensitive element directed towards the point of contact between the wheel and rail head to a crosswise beam (3) of the car truck. Simultaneously with the start of the car, the data coming the pickup on displacement of the wheel ridge relative to the rail head at a preset distance is continuously recorded. Then the pickup is removed from the car, the data carrier is removed from the pickup and the data obtained is processed using a computer programme to provided for a digital visual picture. On the picture thus obtained, a video image of a ruler with divisions is imposed to define the abode said clearance in divisions of the ruler. The said device has a case with a core, a pickup and light sources arranged on both sides of the pickup at an equal distance from it.

EFFECT: simpler design and smaller sizes of the device.

3 cl, 4 dwg

 

The invention relates to the use of measuring equipment and devices for measuring displacements of the rail head and crest rail wheels when moving train.

Famous cars, the track measurement with automated systems (Perspectives measurement systems rails. - Railways of the world, 1998. No. 12. - P.70-71), which are based on the principle of scanning head rail using television cameras located under the body of the car potenzmitel that produces images of the transverse profile of the rail during movement. The disadvantage of this method is that it does not image the interaction between wheel and rail and offset relative to each other.

Also known multifunctional measuring carriage UMF 160 (Bernhard Lichtberger. Die neue Generation von Multifunktionsmessfahrzeugen. EI - Eisenbahningenieur, 2003. No. 3. - C.26-32), which makes measurements at speeds up to 200 km/h Inside the car are measuring laboratory and facilities for staff. This measuring carriage defines a geometric path settings, the wear profile rail, wavy wear and other characteristics. The disadvantage is that it is bulky, expensive, technically complex system with its own power supply and all the measurements are not made at movement srednesetevogo a freight train, and is determined by the parameters of the railway track under its own load.

Closest to the technical nature of the proposed method and device is an apparatus for contactless measurement gauge with sensor (US 5199176; EV 35/00, E01B 35/04, UK 9/00, UK 9/08; JOSEF THEURER (AT), EGLSEER FRANZ (AT); APPARATUS FOR THE NON-CONTACT MEASUREMENT OF A TRACK GAGE. - Publ. 06.04.1993). Using the sensor, which is attached to the axis of the wheelset and receives reflected from the head of the rail beam. The beam is directed onto the surface to be measured and is reflected from it. The reflected beam falls on the light sensor. The disadvantage of this method is that the sensor used to determine the gauge, so the beam of the sensor is not in the gap between the crest of railway wheel and rail head and the rail. In this regard, the beam may be incorrectly reflected due to weather conditions, because in winter the surface of the rail is covered with a thin crust of ice. Thus, the method and the device allow to obtain gauge, and not the nature of the interaction between wheel and rail.

The aim of the invention is the measurement of the gap between the crest of railway wheel and rail head when the train moves, the simplification of the structure for measuring and reducing its size.

This goal is achieved by the fact that continuously record the relative position of the rail head and crest rail wheels with getting videosor the supply, and as a sensor using a video camera, which is placed on the cart moving srednesetevogo of the car.

The invention according to claim 1 is that the sensor is mounted on the platform, which is equipped with a rod, simultaneously with the beginning of the movement of the carriage continuously record on the storage media of the displacement sensor of the crest rail wheel relative to the rail head at a given distance, then remove the sensor from the undercarriage of the car, remove the media, processes the received data using a computer program to generate a digital video image from the video put video line with tick marks so that its integer or zero division coincided with the video image region of the crest rail wheels, looking at the frames on the background of the video line and determine the gap between the crest rail wheel and rail head in divisions of the ruler, and the invention according to claim 2. is that the case is made teams, consisting of welded T-shaped part, a vertical bar which is welded to the horizontal bar in the middle, and a rectangular hollow portion attached to the lower end of the vertical arms of the T-shaped part of the body of the bolt, and to the ends of the horizontal bars of the T-shaped part of the body is americna welded clamps so to open the ends of them were sent down from the horizontal bars of the T-shaped part of the body, at the ends of the clamps are provided with bolt holes and rectangular hollow part of the housing is provided with a bolt-hole, inside moves the rod of square cross section is no longer than rectangular hollow part of the housing, the outer end of the rod is equipped with a platform on which the sensor is installed and the light sources, the light sources are arranged on both sides of the sensor at an equal distance from him, at the same time as the sensor is used cylindrical black-and-white camera type cattle.

Figure 1-4 shows a schematic of the method for determining the clearance between the crest of railway wheel and rail head and device for its implementation.

Figure 1 shows the arrangement of equipment for implementing the method of determining the clearance between the crest of railway wheel and rail head during movement of the carriage, including the head of the rail 1, the crest rail wheel 2, the transverse beam 3 truck of the car, the T-shaped housing 4 mounting design, rectangular hollow part of the housing 5, the plug 6, a cylindrical black-and-white camera 7, the light sources 8, the rod of square section 9.

Figure 2 shows a diagram of the device for implementing the method according to claim 1, comprising additionally at the RH is increased by 1, the clamps 10, the bolts 11 and nuts for clamping the bolt 12 and a nut for attaching and adjusting the position of the rectangular hollow part of the housing 5, the bolt 13 and a nut for adjusting the position of a rod of square section 9.

Figure 3 presents a view of the site And from figure 2, includes a cylindrical black-and-white camera 7, the light sources 8, the rod of square section 9, attachment 14 of the light sources 8, the bracket 15 of the cylindrical black-and-white camera 7.

4 shows the image of the relative position of the crest rail wheel 2, the head of the rail 1 and the gap 17 on the background of the image line 16, which combined with the staff in the processing of digital video recording.

The proposed method is as follows.

For implementing the method performs the Assembly of the device. To do this, attach the T-shaped part of the housing 4 to the cross beam 3 truck of the car, put on the clamps 10 on the transverse beam 3 truck of the car so that the vertical part of it was directly over head rail 1. The final consolidation of the T-shaped part of the housing 4 is performed by tightening the nuts on the bolts 11. After that, the rod of square section 9 with installed light sources 8 and cylindrical black-and-white camera 7 is fixed to a rectangular hollow part of the housing 5, and then a rectangular hollow part of the housing 5 is attached to nor is it the end of the vertical arms of the T-shaped part of the housing 4 and is fixed by a bolt 12 in such position, to the axis of the cylindrical black-and-white camera 7 was directed to the contact point of the crest rail wheel 2 and the head of the rail 1. Then move the rod of square section 9 along the rectangular hollow part of the housing 5, by setting the desired distance from the cylindrical black-and-white camera 7 to the contact point of the crest rail wheel 2 and the head rail 1.

Then connect the power supply 6 to the cylindrical black and white camera 7 and the light sources 8. When the movement of the carriage write changes the gap between the crest of railway wheel 2 and the head rail 1 on the VCR. The duration of recording is limited by the resource videotapes. For further video processing is performed by digitization. Then in the program video processing perform the overlay image line 16 on the digitized video, thus determining the magnitude of the gap 17 in divisions of line 16.

Thus, the proposed method for determining the clearance between the crest of railway wheel and rail head and the device for its implementation allow to determine the relative position of the rail head and crest rail wheels with obtaining a video image, and apparatus for implementing a method for determining the clearance between the crest of the railway is one of the wheel and the rail head is simple and cheap in comparison with the measuring carriages. In addition, the proposed device can be installed on various designs running trucks cars and locomotives.

1. The method for determining the clearance between the crest of railway wheel and rail head, comprising attaching to the cross beam of the undercarriage of the car design, mounting sensor, comprising a housing with a rod, the adjustment of the sensor, the direction of the receiving element of the sensor at the point of contact a railway wheel and rail head, rigid fastening of the sensor in this position, the processing of the received data, wherein the sensor is mounted on the platform, which is equipped with a rod, simultaneously with the beginning of the movement of the carriage continuously record on the storage media of the displacement sensor of the crest rail wheel relative to the rail head at a given distance, then remove the sensor from the undercarriage of the car, remove the media information, processes the received data using a computer program to generate a digital video image from the video put video line with tick marks so that its integer or zero division coincided with the video image region of the crest rail wheels, looking at the frames on the background of the video line and determine the gap between the crest rail way is th wheel and the rail head in the divisions of the line.

2. The device for implementing the method according to claim 1, comprising a housing with a rod and the sensor, wherein the body is made teams, consisting of welded T-shaped part, a vertical bar which is welded to the horizontal bar in the middle, and a rectangular hollow portion attached to the lower end of the vertical arms of the T-shaped part of the body of the bolt, and to the ends of the horizontal bars of the T-shaped part of the body symmetrically welded clamps so that their open ends facing downwards from the horizontal bars of the T-shaped part of the body, at the ends of the clamps are provided with bolt holes, and rectangular hollow part of the housing is provided with a bolt-hole, inside moves the rod of square cross section is no longer than rectangular hollow part of the housing, the outer end of the rod is equipped with a platform on which the sensor is installed and the light sources, the light sources are arranged on both sides of the sensor at an equal distance from him.

3. The device according to claim 2, characterized in that the sensor is used as the cylindrical black-and-white camera type cattle.



 

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2 cl, 3 dwg

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