Track measuring follow-up system
FIELD: measurement technology.
SUBSTANCE: invention relates to mobile diagnostic complexes of rail track. Track measuring follow-up system of mobile diagnostic complex of rail track, suspension of which contains a roller axle, is equipped with lifting track measuring truck, made in the form of two coaxial telescopic booms and parallel with it shaft, connected to each other with independent parallelogram mechanisms connected with the help of brackets with roller axis. On external ends of the telescopic booms following wheels are available. Between the telescopic booms the body with diagnostic equipment is fixed. On the shaft there is at least one rotary module, and on the shaft ends are fixed L-shaped lever fork, each of which with its other end engages with one of the levers of the corresponding parallelogram mechanism.
EFFECT: as a result, reliable of diagnostic equipment arranged on track measuring truck and accuracy of measurements are increases.
1 cl, 4 dwg
SUBSTANCE: present group of inventions relates to measuring equipment, and can be used to check the railroad, in particular to determine deviation of the railroad from the design position. Method of check of spatial position of railroad means that using the receiving and analyzing systems two images of space adjacent to the railroad are obtained. Using the processing and control block the reference mark is detected on the obtained images, and coordinates of the reference elements of the reference mark are determined by preliminary measurements of the mutual spatial position of the check elements. Then displacement of the check elements relatively to the base point of the devices coordinate system in vertical, longitudinal and transverse directions are determined, angles of rotation of the reference mark around the vertical and longitudinal axes, as well as angle of system rotation relatively to the transverse axes is measured. Set of obtained values of displacement of each check element relative to the datum point of the devices coordinate system is compared with the pre-measured mutual spatial position of the mass elements. Based on the results of such comparison the displacements of the reference mark in vertical, longitudinal and transverse directions are determined. Correction of the obtained displacements is made considering the obtained angles of rotation, and railroad position is determined.
EFFECT: reduced error of determination of the railroad position.
2 cl, 1 dwg
SUBSTANCE: longitudinal stress values are defined continuously during the motion of a rolling stock at the mechanical interaction of a rolling railroad wheel with a rail when mechanical oscillations are excited at tested sections of rail bars with recording, converting of the received oscillations to acoustic oscillations with signal amplification, and at the analysis of spectrum of the excited oscillations in frequency and amplitude depending on a value of longitudinal mechanical stress at the rail bar sections. According to results of data processing changes in the spectrum of the excited oscillations are analysed and sections of railroad tracks are identified with deviations in an amplitude-frequency curve in a real-time mode.
EFFECT: increased efficiency of control and safety of train traffic.
SUBSTANCE: diagnostic device of control elements of a rolling stock derailing control device (RSDCD) includes an electronic unit for the detection and research of defects based on a magnetic metal memory method (MMM) with a ferroprobe converter (FPC) and an electronic unit for the detection and research of defects by means of an eddy current method with an eddy current converter (ECC). The device also has an electronic recording and processing unit connected to the electronic unit for the detection and research of defects based on MMM method and the electronic unit for the detection and research of defects by means of the eddy current method.
EFFECT: increasing safety of railroad movement.
16 cl, 5 dwg
FIELD: measurement equipment.
SUBSTANCE: invention relates to non-destructive testing devices and is intended to determine coordinates of an inspection sensor when searching defects. A general-purpose coordinate device for a manual defect detector is arranged on a test object and includes at least one inspection sensor, and it is made in the form of a flat frame of an open type, the free ends of which are installed with a possibility of being turned on supporting fasteners fixed on the test object. With that, on the frame there are two encoders arranged, each of which is provided with a cable connected to a cassette holder located between the encoders, in which a cassette is installed and provided with at least one inspection sensor with a possibility of its movement along the test object surface.
EFFECT: improving object test reliability, as well as reducing labour input for use of a coordinate device.
SUBSTANCE: linear guide with a sliding carriage is installed on a framework. Laser range profilometers with the possibility of moving them to change the position by the conveyor are mounted on the carriage. Laser scanners fixed on a bracket with one laser emitter and two receivers of the reflected signal, which are installed in the laser scanners, are used as the laser range profilometers. The receivers read the reflected signal simultaneously of the same cross-section of a reinforced concrete cross-tie. Minimum two laser scanners for simultaneous measurement of two or more reinforced concrete cross-ties are fixed on the carriage.
EFFECT: simplification of the system and measuring process and an improved performance and efficiency of the system operation due to the provision of a possibility to measure the parameters of two or more cross-ties at the same time.
SUBSTANCE: method comprises inspecting a portion of a railway line using a magnetic flaw detector mounted on a flaw detector car; identifying defects and structural components (bolt and welded joints of rails, metal rail plates etc), signals from which and positions of which are stored in a test card; using data on the structural components of the railway line for navigation during ultrasonic flaw detection of the same portion of the railway line; detailed analysis of objects identified by the magnetic flaw detector using an ultrasonic flaw detector; correcting the test card based on the flaw detection results.
EFFECT: high accuracy, quality and rate of detecting defects on rails.
2 cl, 5 dwg
FIELD: measurement equipment.
SUBSTANCE: device is used to monitor the deviation from straightness at the surface of the side active face of a rail head in horizontal plane and at the rail head running surface in vertical plane by contactless method. The device for automatic monitoring of rails' welded joint straightness comprises a casing, a mechanical portion, end face panels, contactless location sensors, sensors for contactless measurement of distance to the rail surface and an electronic unit. The mechanical portion consists of locating prisms closed by the end face panels on the outer side, the panels are fitted by cutouts corresponding to the surfaces mating the surfaces to be monitored with built-in magnets being installed between them. Each prism is equipped by backing-up tips contacting with the monitored surfaces. The contactless location sensors interfaced with the electronic unit are set near the tips. In the central casing part between the auxiliary prisms there installed are the sensors for contactless measurement of distance to the rail surface which are interfaced with the electronic unit providing for the display of the nonstraightness at analogue indicators and at a graphic display unit and for the storage of nonstraightness results in a memory block. The invention is also related to the method of using the device.
EFFECT: possibility of getting visualised and reliable information, reduction of time required for monitoring of rails' welded joint straightness.
2 cl, 10 dwg
SUBSTANCE: railway testing system contains track measuring truck and network centre and reference stations connected with the system. The truck contains control-computing complex to which track geometrical parameters measurement tools, navigational signals receiver, display unit, memory unit, transmit-receive unit, processor, communication interface unit, local alarm messaging unit and acoustical-electrical transducers are connected. Each reference station includes transceiver for navigational signals. Network centre consist of communication server, processing and control unit and data archiving unit. Also, external track gang notification system is included in the system.
EFFECT: improved safety of track gangs and mobile testing facilities.
2 cl, 1 dwg
SUBSTANCE: diagnostics car incorporated with the train and equipped with strain-gage mounted axles, strain-gage auto couplings, meters, systems of satellite navigation and wireless communication are used to define the track geometry conditions. Cure radii, positions of rail threads in plan and profile, track gage and other parameters related to electronic GPS map to relate them to the data of last trips of track metering train. At a time, strain-gage mounted axles are used to define vertical and lateral forces, their relationship in interaction between track and rolling stock and between rail and wheel. Strain-gage auto couplings are used to define dynamic forces at rolling stock to estimate dangerous section of the track for empty cars to be related to track profile. Proceeding from track geometry parameter measurements and train speed, probability of train derailing is estimated caused by rolling of wheel flange on the rail. Track sections are defined which can have anti-derailing factors lower than standard ones to work out recommendations on current maintenance of said tracks.
EFFECT: higher validity and efficiency of estimation.
2 cl, 3 dwg
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.
FIELD: railway transport; measuring facilities.
SUBSTANCE: invention relates to special purpose devices for measuring separate geometric parameters of reinforced concrete ties, i.e. propelling and canting of rail flats on reinforced concrete ties. Proposed device contains housing 1 with fitted-on transport handle 2, right-hand support 3 and left-hand support 4. First support screw 5 and second support screw 6 are installed on right-hand support 3, third support screw 7 and fourth support screw 8 are installed on left-hand support 4, right-hand catcher 9 and left-hand catcher 10 are installed on ends of housing 1, sensor 11 is secured on first support screw 5. Housing 1 carries also right-hand orientation handle 13 with pushbutton 15 and left-hand orientation handle 14. Base 16 is fastened in central part of housing 1, controller 17 and supply compartment 18 being secured on base 16. Device for measuring rail flat canting contains housing 1 with fitted-on transport handle 2, right-hand support 3 and left-hand support 4. First support screw 5 and second support screw 6 are installed on right-hand support 3. And third support screw 7 and fourth support screw 8 are installed on left0hand support 4. Right-hand catcher 9 and left-hand catcher 10 are installed on ends of housing 1, first sensor 11 is secured on first support screw 5, and second sensor 19 is installed on fourth support screw 8. Housing 1 carries right-hand orientation handle 13 with pushbutton 15, and left-hand orientation handle 14. Base 16 with fitted-on controller 17 and supply compartment 18 is secured in central part of housing 1. Moreover, support 21 is connected to housing 1 through vertical rods in central part.
EFFECT: improved efficiency of measurements, increased accuracy and provision of operative measurement of parameters under checking.
3 cl, 2 dwg
FIELD: railway transport.
SUBSTANCE: invention relates to method of diagnosing condition of railway and street car tracks. Proposed device contains detectors designed for measuring deviation of gauge and position of track by level of sags, humps and cavities connected with contact members. Device contains also vertical parallel, inner and outer posts, rollers made for interaction with side working inner surfaces of side track, rollers made for interaction with upper working surfaces of rail track, jambs some ends of which are connected with roller races and others, with corresponding posts. One of detectors is made in form of dial indicator, being arranged on one of inner posts and coupled with roller-type contact elements made for interaction with side working inner surfaces of track. Rod of said indicator is in contact with upper end of other inner post. Springs are placed between inner post. Springs are placed between inner posts in upper and lower parts, mounted on upper surface of two pairs of bosses fitted on one axle. Holes are made in inner posts. Axle with bushing is placed in inner posts. Bracket is connected by one end to bushing, and other end of bracket serves for fastening to floor of test car. Second detector is made in form of metric rule secured to inner post, and two pointers secured on upper end faces of outer posts. Two pairs of slots are made on outer posts. Slots are arranged on one axis and they accommodate pins installed for movement. Pins are provided with stops from outer and inner parts of posts.
EFFECT: improved reliability of device, reduced cost, possibility of reading results of measuring directly from detectors.
FIELD: railway transport; permanent way.
SUBSTANCE: invention relates to method of noncontact inspection of profile of ballast base passing square to longitudinal direction of track. Inspection is carried out together with recording of deviation of track in level and in position. Depending on recorded defects as to level (a) and profile of ballast base 13 obtained for said level, amount of crushed stone for lifting track 4 to preset level and uniform ballasting is determined. To find amount of crushed stone required for ballast base 12, recorded profile of ballast base 13 is applied to preset profile of cross section 14.
EFFECT: improved ballasting of track.
3 cl, 4 dwg
FIELD: railway transport; permanent way.
SUBSTANCE: invention relates to method of grading of existing bed of railway in which cables and/or pipes are laid beyond the limits of rails, and to laser measuring device to read bed profile. According to proposed method, operator removes material of bed by sucking through definite steps along bed to form pits or cross trenches at each side of track, and using laser camera, checks profile near pit and position of buried cables or pipes and stores obtained information. Then, using information kept in memory, operator controls device for mechanical digging of material from both sides of track without risk of damage to buried cables or pipes and profile of graded bed. Laser measuring device is mounted on railway motor car with cross guide beam 12 and carriage with laser camera which can be moved along guide beam. Laser camera is pointed with its lens downwards to read distance from ground, being connected with computer to record position of bogie on rails and distance from camera to ground.
EFFECT: provision of safe, quick and cheap method of railway bed grading with use of laser measuring device.
6 cl, 6 dwg
FIELD: railway transport; permanent way testing facilities.
SUBSTANCE: method of pulling contact system cable comes to the following: each rail 6 is read off by means of distance pickup 16 placed over rail and moved continuously in longitudinal direction of track and scanning in plane 20 passing square to longitudinal direction of track. Problem points of measurement 25 on rail defining geometry of switch are recorded as measurement values in polar system of coordinates. Polar coordinates for measurement values are converted into Cartesian coordinates and information is recorded in memory at continuous measurements of distance by means of measuring wheel after which lateral section for switch 1 is calculated basing on recorded measurement values. Actual measurement values are compared in definite points of measurement 25 with preset values of at least two of enumerated parameters kept in memory, namely, width of clearance between counter-rail and running rail, through clearance or state of tongue as to its wear, minimum width between edge of guide rail and side edge of running rail in curve, width of gauge and/or distance between counter-rails or guide surfaces and deviation of obtained values from preset values. In device for noncontact measurement of lateral section or rail-to-rail distance of track, each pickup 16 is arranged in area over corresponding rail 6 being essentially laser scanner 17 for reading problem points of measurement 25 defining geometry of switch which is made for reciprocation at angle of scanning (α).
EFFECT: provision of quick and accurate determination and evaluation of measurands of vital importance for switch.
4 cl, 6 dwg
FIELD: railway transport; track maintenance.
SUBSTANCE: geometry of track is measured by using high-accuracy measuring circuit with two mechanically coupled test trucks forming transport and mechanically coupled test trucks forming transport and mechanical part of measuring system and including covered distance meter and truck tilting level sensors relative to horizon and at least one radiating mark (optical radiation source) rigidly installed on first test truck in direction of movement and providing pressing of flange of wheel to inner head of base rail, and optical electronic receiving-and-analyzing system rigidly secured on second truck. Second truck is double axle, with flanges of corresponding wheelsets pressed to inner surface of head of base rail, thus forming measuring base identifying position of base rail in points of contact of corresponding wheelsets.
EFFECT: improved accuracy of measurement at simplification of process.
4 cl, 5 dwg
FIELD: railway transport; permanent way.
SUBSTANCE: proposed device for checking condition of switch tongue includes movable and fixed members in form of tongue includes movable and fixed members in form of tongue and ties with adjoining and second stock rails secured on ties and it contains one tongue position pickup relative to adjoining stock rail designed for shunting track circuits of automatic block system. Device is furnished with stop shoe secured on fixed member of track and designed for limiting displacement of tongue along adjoining stock rail. Tongue position pickup is made in form of stationary and movable contacts. Used as stationary contact is said stop shoe which is electrically connected with adjoining stock rail and is electrically insulated from second stock rail. Movable contact is electrically connected with second stock rail being electrically insulated from adjoining stock rail and installed for power interaction with tongue and forming electric connection with stationary contact.
EFFECT: improved safety of traffic, enlarged functional capabilities of device.
5 cl, 3 dwg
FIELD: railway transport.
SUBSTANCE: invention can be used for diagnosing condition of rails using combined ultrasonic and magnetic nondestructive testing devices of higher resolving power. Proposed rail track mobile testing device includes vehicle on frame of which flaw detector bogie is mounted with system for pneumatic and manual lifting of bogie I to traveling position. Tracking ski secured on frame of flaw detector bogie is provided with ultrasonic testing converters unit. Mobile device is provides also with pneumatic system for forced pressing of flaw detector bogie to rails made for adjusting force of pressing in vertical axis and with lateral stabilizing device consisting of roller carriage with flexible damping support. Series magnetizing coils of magnetic control device whose inductive sensor is installed after converters unit in rear part of tracing ski in direction of movement of flaw detector bogie, said coils being fitted on axles of wheel-steps of flaw detector bogie and connected to each other. Said magnetizing coils are installed on bearings and are arranged I protective hood secured on frame of flat detector bogie. Housing of converters unit, protective hood and frame of flaw detector bogie are made on nonmagnetic material. Wheels of flaw detector bogie are installed for independent rotation.
EFFECT: increased resolving power at diagnosing condition of rails, increased dynamic stability of device in movement along rails, reduced mass and dimensional characteristics.
2 cl, 1 dwg
FIELD: railway transport.
SUBSTANCE: method comes to measuring vertical and horizontal accelerations of meter body and those of left-hand and right-hand axle boxes of one of its wheelsets, determining values of measured accelerations and components of vertical accelerations of axle boxes for preset fixed running speed, and comparing obtained values with tolerable values and determining minimum value of maximum running speed of meter on particular section of rail track. Proposed device contains covered part transmitter, initial data packet shaper, accumulator, filter unit, operator's panel, acceleration meters, speed meter, board time system, scaling unit, path irregularities detector, wheel out-of-roundness detector, body vibration intensity detector, maximum speed meter and report date packet shaper. Group of inventions provides determination, with high accuracy and reliability, values of accelerations appearing in main members of meter-path system and obtaining complex characteristics of dynamic interaction of rail track and running train.
EFFECT: simple design of device, low cost.
3 cl, 2 dwg
FIELD: railway transport; permanent way.
SUBSTANCE: invention relates to methods of checking and forecasting condition of rail track. According to proposed method, running course of body of track-testing car is measured by means of inertia navigational system installed under pivot of test bogie, and running hunting angle of test bogie relative to body is measured by means of angular displacement transducer. Then, using axle box-rail transducers, distance from flanges of corresponding wheels of bogie to rail heads are measured. Basing on obtained information , running courses of rail lines are calculated as running course of body minus running hunting angle of test bogie relative to body minus running angle of parallel misalignment of flanges of wheelsets of test bogie and heads of rail lines. Then running values of horizontal irregularities of rail lines are found as product of bogie base by deflection of running course of rail lines from running averaged courses of rail lines on bogie base calculated from courses of rail lines. Running radii of curvature of rail lines are found by dividing bogie base by measured increment of course angles of rail lines on bogie base.
EFFECT: provision of chordless (single point) method of checking leveling of rail lines.