Control unit for gage width

FIELD: measurement equipment.

SUBSTANCE: invention refers to the field of measurement equipment and can be used for control of the geometrical dimensions of the railroad gage. The unit contains a meter of the geometrical dimensions and control equipment that are mounted on the vehicle support. Laser devices are located above the corresponding rails of the road. The unit is equipped with a support swivel drive group in the vertical plane. The support is made with a swivel load-bearing part connected with the help of a pin to its fixed part. The record and satellite image processor, the image send group and the display are connected to the microprocessor that is installed in the vehicle cabin, for example, of the diesel locomotive. The navigation aerial for determination of location of the laser devices from the satellite is installed on the support.

EFFECT: extension of the functionality related to determination of the geometrical dimensions of the gage in front of the transportation vehicle thus ensuring its travel safety.

2 cl, 11 dwg

 

The invention relates to the field of measurement technology and can be used to control the geometric dimensions of the railway track.

A device for the continuous determination of the resistance to lateral displacement of the rail and/or stabilization of the track that contains the migrated towards the frame connected to the frame by means drives the vertical movement of the vibrating unit includes a vibration exciter with a hydraulic actuator included in the hydraulic system, and the tools to interact with rails, measuring system, the registering unit and a computing unit connected to the measuring system and recording unit included in said hydraulic pressure sensor connected to the aforementioned computing unit for determining the resistance to lateral displacement of the rail (EN 2105836, E01B 35/00, 1995).

The disadvantage of this device is the difficulty of determining the offset of the railway track with his unknown geometric dimensions due to vibration.

The closest in technical essence and the achieved result is a measuring device on the go train, containing three associated with railway traction means measuring trucks, two of which are oriented in one direction, and one is a - in the opposite, and each of them consists of a frame on wheels, obkatyvalisj rails of a track, with measuring devices associated with the indicating and recording devices, truck hanging on axes with values traction device type trolleys - two trolleys on the same axis, one on the other, bogie frames made in the form of pairs of bearing shafts, one end fixed on the axis of the corresponding axle box and bearing on the other ends of the axles of these wheels, each truck frame rotary shafts are suspended by means of a power cylinder on the frame of the traction means, and the axis wheels are made telescopically extend through the respective power cylinder, and indicating and recording devices are located in the cab (EN 2152469, E01B 35/04, 1998).

The disadvantage of this device lies in the fact that when determining the geometric dimensions of railroad tracks under the vehicle is not secured its passage in the audited area.

The technical result of the invention consists in the extension of functionality when determining the geometric dimensions of the railway track in front of the vehicle with the security of its movement.

The technical result is achieved in that the device for controlling the width of the railway track, steriade is mounted on the rotary support vehicle measuring geometric dimensions and installed in the cabin of the control equipment, according to the invention in the upper part of the vehicle is placed stationary part of the swivel bearing, the axis of which is installed with the possibility of rotation of the actuator in the vertical plane of the supporting part with the measuring geometric dimensions, and the control apparatus includes a microprocessor which is connected to the Navigator and the image transfer unit, a recording unit and a signal processing and display.

Measuring geometric dimensions made in the form of two laser devices matrix type, the emitters and receivers which are located in the same vertical plane perpendicular to the direction of movement of the vehicle.

Figure 1 shows a General view of the device installed on the locomotive; figure 2 is a top view; figure 3 is a cross section along a-a in figure 2; figure 4 - location define the width of the track on the railway track, side view; figure 5 - definition schema gauge; 6 is a scheme for determining the elevation of one rail above the other rail; figure 7 - diagram of the operation of the laser device; Fig diagram of range-finding laser device; figure 9 is a section along b-B in Fig; figure 10 - matrix laser devices with one row of laser diodes, and figure 11 is an algorithm to test the geometric dimensions of the railway track.

Device for controlling the width of the railway track contains aktirovannye on the rotary support 1 vehicle 2 measuring geometric dimensions 3 and installed in the cab 4 of the control equipment 5.

In the upper part of the vehicle 2 is placed fixed part 6 of the rotary support 1, on the axis 7 which is installed with the possibility of rotation of the actuator 8 in the vertical plane of the supporting part 9 by measuring the geometric dimensions 3.

The control apparatus 5 includes a microprocessor 10 that is connected to the Navigator 11, block 12 of the image transfer unit 13 recording and signal processing and display 14.

Measuring geometric dimensions of 3 made in the form of two laser devices 15 and 16 matrix type, the emitters and receivers are located at a distance S from the rail head and a straight line perpendicular to the direction of movement of the vehicle 2.

The axis 7 is placed in bearings 17 in the plane of the receiver laser devices 15 and 16, and in the upper part of the vehicle 2 is installed antenna 18 Navigator 11 for communication with the satellite 19.

Device for controlling the width of the railway track works as follows.

Before leaving the station of the vehicle 2 (the locomotive) front mounted rotary support 1 by measuring the geometric dimensions 3 and the cabin 4 is connected to its control equipment 5. The probe 3 is in the form of two laser devices 15 and 16, placed on the rotary support 1 with the rotary bear is her part 9 in the upper part of the locomotive 2 over the corresponding rails of the railway track. Supporting part 9 unfolds drive rotation 8 in the vertical plane along the railway track. In the upper part of the locomotive 2 antenna 18 is configured to communicate with the satellite 19.

Locomotive 2 with the installed device should train tracks and checks before a main geometrical dimensions: gauge - In, and irregularities in excess of one rail on the other hp.

The microprocessor 10 processes the measurement results using the block 13 recording and signal processing unit 12 of the transmission image.

Two laser device 15 and 16 with a matrix emitters and receivers are placed on the rotary support 1 on top of the locomotive 2 over the corresponding rails of the railway track. To increase the range of the inspection of railway track, drive 8 rotates toward the movement in the vertical plane at an angle α of the carrier portion 9 connected by the axle 7 with the fixed part 6. The axis 7 is placed in bearings 17 in the plane of the receiver laser devices 15 and 16.

Track width of the path is measured by two laser devices 15 and 16, mounted on the support 1 at an angle α. Receivers laser devices 15 and 16 together with their emitters scan of the head rail thereby to define an inner boundary of the heads. At these limits the range of the signal laser luciolinae by an amount equal to: ΔL=H/cosα,

where H is the height from the border control gauge on the rail head to his feet.

For the new rail R65 from reference materials N will be equal to 141,7 mm

As examples of acceptable height H=140 mm; α=88°.

The value of ΔL=140/0,0349=4011 mm, α=87° ΔL=140/0,0523=2676 mm

These examples show that at these angles of a laser beam to determine the location of the inner side faces (edges) of the heads of both rails noticeable difference in the distances between the head and base rails. In this case, it is a way of measuring gauge according to the difference of the location of the lateral edges of the rails on the inside of the track. Two laser device 15 and 16 are mounted at a distance from each other in the same horizontal plane equal to the known width of the railway track 1520 mm Tolerances, broadening and narrowing of the track covered by the rulers of matrices laser devices 15 and 16.

Figure 10 matrix with emitters and receivers, laser devices 15 and 16, arranged horizontally and transversely above the corresponding rails, scan the rail head to their soles. Parallel rays from the individual lasers are located on the same line in the matrix at a close distance from each other, for example through 2 mm, is focused on the rail head with the possibility of their coverage on straight and curved track sections Two boundary laser matrix, which define the track width, allow for the known location them in the matrix to determine the distance between them.

Elevation of one rail above the other hp(see Fig.6) is defined as the difference between the distances or ranges of L3and L4measured to the respective rails laser devices 15 or 16. Moreover, the receivers emitters matrices laser devices 15 and 16 should clearly record the size In width of railroad track in this place.

hp=L3-L4,

where L3- the distance (range) to determine the gauge on the left rail from the laser device 15;

L4- the distance (range) to determine the gauge on the right rail from the laser device 16.

Distances L3and L4you can measure laser devices 15 and 16 to the level of the heads of the respective rails. Measurements are made with smooth vertical oscillations of the locomotive 2.

Continuously measured values of hpin the direction of travel of the locomotive 2 indicate the existing irregularities of the railway track.

Laser devices 15 and 16 function as locators checking the path in front of a moving locomotive 2, and ensure the safety of its movement.

Track width is measured laser devices 15 and 16 at low speed diesel locomotive 2, the hen his cabin makes a smooth vertical vibrations.

The distance from the locomotive 2 to the place of measurement and geometry control of the railway track is determined by the following formula:

L1=ht×tgα,

where ht- mounting height swivel bearing 1 on the locomotive 2 relative to the rail head.

Take the height ht=4.3 m; α=88°,

ΔL=4,3×28,63=143,15 m,

when α=87° ΔL=4,3×11,43=57,15 m

Satellite 19 data about the location of the locomotive 2 is transmitted to the Navigator 11 and is read by microprocessor 10. In addition, receiver and antenna 18 receives the signal carrying image information of the railway track, which is converted and displayed on the display 14 in the form of a cross-section of the path, indicating gauge in mm In block 13 recording and processing signals generated another image of the cross-section of the track path with the measured laser devices 15 and 16, the width of the path, for example, with an accuracy of ±2 mm, the distance between the inner faces of the heads of the left rail and right rail (figure 9) may vary depending on operating conditions and repair of the railroad tracks.

These images are compared in the microprocessor 10, exposes differences or differences in the size of the gauge. Image processing is performed on a moving locomotive 2 automatically by microprocessor 10. If the differences exceed d the permissible limits (6 mm), the display 14 displays the warning or alert sounds. Signal in the case of lowering the gauge (2 mm). In these cases, the train can't go further. Need to fix the tracks.

In the absence of differences or discrepancies in excess of permissible limits on gauge 1520 mm, locomotive 2 cars can follow along.

Record the geometric dimensions of the gauge before the locomotive 2 and comparison with images from space are produced continuously in front of the locomotive 2 at different speeds of motion.

On straight sections of the path of the laser devices 15 and 16 control the path at a distance of several hundred meters.

On winding roads, the range of their measurements is limited to tens of meters provided coverage laser matrices heads bent in the horizontal plane of the rails. The control is done by the permissible standards.

Control the width of the railway track is provided a direct measurement of laser devices 15 and 16 and confirmation images from satellite 19. Only in this case, the composition with cars can safely follow a given route.

The efficiency of the device to control the width of the railway track is to ensure safety of vehicle maintenance the vehicle track width and elevation of one rail above the other on the railway track.

1. Device for controlling the width of the railway track, containing mounted on the rotary support vehicle measuring geometric dimensions and installed in the cabin of the control apparatus, characterized in that the upper part of the vehicle is placed stationary part of the swivel bearing, the axis of which is installed with the possibility of rotation of the actuator in the vertical plane of the supporting part with the measuring geometric dimensions, and the control apparatus includes a microprocessor which is connected to the Navigator and the image transfer unit, a recording unit and a signal processing and display.

2. The device according to claim 1, characterized in that the measuring geometric dimensions made in the form of two laser devices matrix type, the emitters and receivers which are located in the same vertical plane perpendicular to the direction of movement of the vehicle.



 

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