Method for control over longitudinal stress condition of rail bars in continuous welded rail tracks
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.
The invention relates to a method of controlling the longitudinal stress state rail lashes jointless railway track and can be used under current operation of jointless railway track to control the longitudinal stresses in the rail lashes and prevent their emissions or ruptures.
The known method of control of the stress state sections of rail lashes jointless railway track caused by temperature changes and fatigue phenomena from the effects of the wheel on the rail during the passage of the composition, which consists in that prior to laying rail lashes carried out to determine the zones of stress concentration on the self-magnetic field scattering by scanning a magnetometer sensor along the surface of the rail head, a second diagnosis whip when passing on the way 50-150 million tons of cargo, determine the maximum change settings, RU №2454344 C1, B61K 9/08, 27.06.2012.
The known method of diagnostics of rails, namely that the vehicle install the device flaw detection, measurement of roughness and CCTV rails, move the vehicle along the rails, frames measure the condition of the rails can be chosen according to the speed of movement of the transport means�and, detect signals indicating a suspected defects and irregularities, increases the sensitivity of detection signals, delay instantaneous measurement signals according to their relative position and speed of travel of the vehicle so that they belonged to one and the same transverse cross-sections of rails, jointly analyze the signals of all devices on the sections of rails with suspected defect or irregularities, evaluate promising areas of rails, RU №2474505 C1, B61K 9/08, 10.02.2013.
The known method of diagnostics of the track, namely that the instruments of measurement of parameters of rail track mounted on the vehicle which moves along the track, measure the parameters of the track, detect defects and determine their coordinates, you get a graphical image of a section of rail track with the detected deviations in the cross sections of rail lashes, save the measurement results, after the end of the survey section of rail track analyze your results and based on the analysis of the specified image make a decision about the state of the track, RU №2446971 C2, B61K 9/08, G01D 7/02, 10.04.2012.
A device for determining the longitudinal stiffness of the track containing the levers attached to the ends of the rails razora�tion of the joint, the bolt pulls the levers through the spring, the tension force is calculated by multiplying the spring rate on the magnitude of its deformation and longitudinal stiffness of the track is determined by dividing the tension force on the amount of movement of the rail ends, RU # 100478 U1, B61K 9/08, 20.12.2010.
A device for measuring stress in various designs through the polarization-optical Converter comprising a load element, mounted on a controlled object, piezooptical Converter, which converts into an electrical signal the magnitude of stresses in the photoelastic element, and a processing unit of the signal, RU # 115474 U1, G01L 1/00, 27.04.2012; RU # 111646 U1, G01L 1/00, 20.12.2011.
The known method of determining the longitudinal stress state rail lashes jointless tracks, namely that periodically measure the temperature of sections of rail lashes, define longitudinal thermal stresses these areas, simultaneously with the temperature measurement areas is measured in the longitudinal displacements, determine the longitudinal strain plots of rail lashes and longitudinal stresses caused by them, and then determine the longitudinal tension sections to reflect the changes in their lengths and the longitudinal deformations, RU №2469894 C2, B61K 9/08, 20.12.2012; RU №2239547 C1, B61K 9/08, EV 35/00, 10.11.2004.
From�honest ways to determine the longitudinal stress state rail lashes are visual methods of determining the length of the object of control while changing the longitudinal stretching forces - compression and allow for the probability of false alarms or omissions labels, as well as the complexity of the subsequent calculations of mechanical stresses.
The known method of determination of mechanical stresses in the rail bar, including laying rail lashes under certain temperature conditions and with specified effort of her bond with the sleepers, after laying rail lashes in necks rail drill a hole conical shape, measure its diameter Dxand Dyfor two mutually perpendicular axes x and y, perform a subtraction of the measured data in accordance with the expression ΔD=Dx-Dyperform a temperature measurement in the bore of the neck rail, is determined according to the data obtained mechanical stresses in the rail bar and transmit them to the point of diagnosis, RU №2478153 C2, EV 19/00, 27.03.2013.
The known method of determining the longitudinal stress state rail lashes relates to a mechanical method of control, which is implemented in the hard conditions of railway operation, has a high accuracy of calculations of mechanical stresses under low-bandwidth control.
The disadvantages of the known method include the dependence of control results from the chemical composition of rail steel, structure, metal rail, his initial amaniche�ness (magnetic methods).
A common drawback of all these methods is the possibility of minor control on the length of the local part of the route, and poor performance of control.
The known method of measuring tensile stress acting on the rail, whereby the rail is fixed at two or more points on the rail between the points of fixing hang the load of a large mass, with signal-dependent tensile forces, is the frequency response of the resulting oscillatory system formed by the specified rail and suspended to it the cargo, EN No. 2487325 C2, G01L 1/00, 10.07.2013.
This technical solution adopted as the closest analogue of the present invention.
The nearest analogue to the measurement of tensile forces acting on the rail, is carried out without installing on the rail sensors.
However, for implementing the method closest analogue of the necessary preliminary preparation of the investigated section of the route, the lack of trains in the studied section of the route at the time of the work, the impossibility of carrying out work at elevated temperatures because of possible loss of lateral stability of rail lines and, consequently, from the above, poor performance of the control.
The present invention is supposed solution for�ACI, to improve performance of control and enhance the safety of train movement.
The technical result of the invention lies in the implementation of control without prior knowledge of the studied section of the route and the lack of a need it is closed for traffic at the time of the works, by monitoring continuously in motion during the mechanical interaction of a rolling railway wheel and rail, and in the analysis of the spectrum of the excited mechanical oscillations in frequency and amplitude, and is operative to obtain information on the longitudinal cracking of rail lashes jointless tracks, at the expense of information on the lashes with excess quantities compressive or tensile stress, the analysis of spectral changes induced mechanical vibrations and the allocation of track sections with deviations of amplitude-frequency characteristics.
According to the invention this problem is solved due to the fact that the method of control of the longitudinal-stress state rail lashes jointless tracks is to determine the longitudinal mechanical stresses sections of rail lashes to reflect changes in the magnitude of the longitudinal strain.
The definition of the longitudinal stresses is carried out continuously in motion DRI�one of the rolling stock during the mechanical interaction of a rolling railway wheel and rail, upon excitation of mechanical vibrations on sections of rail lashes with registration, a transformation of the received mechanical vibrations into acoustic and amplification of the signal, and analyzing the spectrum of the excited mechanical oscillations in frequency and amplitude, depending on the magnitude of the longitudinal mechanical stresses sections of rail lashes.
According to the results of information processing analyse the change in the spectrum excited by mechanical vibrations and efficiently allocate the railway sections with deviations of amplitude-frequency characteristics.
The applicant has not identified the sources containing information about technical solutions, identical to the present invention, which allows to make a conclusion about its compliance with the criterion of "novelty."
Through the implementation of the distinguishing features of the invention in conjunction with the features specified in the restrictive part of the formula) achieved an important new properties of the object.
Determining longitudinal stresses continuously in the movement of railway rolling stock during the mechanical interaction of a rolling railway wheel and rail, the excitation of mechanical vibrations and in the analysis of the spectrum of the excited mechanical oscillations in frequency and amplitude allows to increase the performance of the control.
Carry out�their analysis of changes in the spectrum of the excited mechanical vibrations and operational allocation of track sections with deviations of amplitude-frequency characteristics, depending on the magnitude of the longitudinal mechanical stresses sections of rail lashes, increases the safety of train movement.
The applicant was not aware of any publication that would contain information about the impact of the distinctive features of invention technical result. In this regard, according to the applicant, it is possible to make a conclusion about conformity of the proposed technical solution the criterion of "inventive step".
The essence of the method is illustrated by drawings, where shown:
Fig.1 - diagram of the acoustic duct system.
Fig.2 is a Graphical depiction of excessive magnitude of the tensile stresses.
Fig.3 is a Graphical depiction of excessive magnitude of compressive mechanical stresses.
In the drawings:
rail - 1,
the source of mechanical vibrations - 2,
speaker system - 3,
Converter of mechanical vibrations in an acoustic system (3) - 4,
amplifying path (system 3) - 5,
spectrum analyzer (system 3) - 6,
the processing unit and storing information (system 3) - 7.
The method is as follows.
The way to control the longitudinal stress state rail lashes jointless tracks is that define a longitudinal mechanical stress sections of rail lashes and when�Alize spectrum analyze changes in the spectrum of the excited mechanical vibrations and efficiently allocate the railway sections with deviations of amplitude-frequency characteristics.
The definition of the longitudinal stresses is carried out continuously in the movement of railway rolling stock during the mechanical interaction of a rolling railway wheel and rail 1.
The definition of the longitudinal stresses is carried out by excitation of mechanical vibrations on sections of rail lashes with the registration of the source of mechanical vibrations 2, converting the received mechanical vibrations into acoustic in the acoustic transducer 4 system 3 and the signal amplification in the amplifier path 5.
The definition of the longitudinal stresses is carried out by analysis of the spectrum of the excited mechanical oscillations in frequency and amplitude in the spectrum analyzer 6, depending on the magnitude of the longitudinal mechanical stresses sections of rail lashes.
The analysis of spectral changes induced mechanical vibrations is carried out by results of processing of the information processing unit and information storage 7 speaker system 3, which analyze the change in the spectrum excited by mechanical vibrations and efficiently allocate the railway sections with deviations of the amplitude-frequency characteristics�of eristic.
The decision to longitudinal cracking of rail lashes jointless tracks or individual of their area and the need for additional work is accepted by the operator based on the analysis of changes of the amplitude-frequency characteristics of the system.
Graphic image of excessive magnitude of tensile stresses (Fig.2) and the graphic representation of excess quantities of compressive mechanical stresses (Fig.3) obtained when performing experimental work on the control of the longitudinal stress state rail lashes on the separate parcel of jointless tracks.
In the proposed method of control the longitudinal stress state rail lashes jointless tracks used methods and devices that are widely used in industry and in particular rail transport, and experimental work related to the spectral control of mechanical oscillations cause, according to the Complainant, the compliance of the method the criterion of "industrial applicability".
Using the proposed method allows to:
- to increase the productivity of control;
- to increase the objectivity of control;
- to improve the quality of the content of rail lashes jointless tracks;
- to improve the safety of train movement.
The way to control the longitudinal stress state ryul�new lashes jointless tracks, consisting in the determination of the longitudinal mechanical stresses sections of rail lashes with changes in the longitudinal strain, characterized in that the determination of the longitudinal stresses is carried out continuously in the movement of railway rolling stock during the mechanical interaction of a rolling railway wheel and rail, the excitation of mechanical vibrations on sections of rail lashes with registration, a transformation of the received mechanical vibrations into acoustic and amplification of the signal, and analyzing the spectrum of the excited mechanical oscillations in frequency and amplitude, depending on the magnitude of the longitudinal mechanical stresses sections of rail lashes, and according to the results of information processing analyse the change in the spectrum excited by mechanical vibrations and efficiently allocate the railway sections with deviations of amplitude-frequency characteristics.
SUBSTANCE: motor vehicle (MV) weight sensor contains a set of discrete sensing elements located between separate upper cover and lower cover the material of which is selected based on condition of providing sensor elastic deformation in bending approximately the same as for adjacent layer of road bed. Upper and lower covers can be made of material the Young 's modulus of which is not less than Young 's modulus of material of discrete sensing elements, and thermal linear expansion coefficient of this material can me approximately equal to thermal linear expansion coefficient of road bed adjacent layer material.
EFFECT: higher measurement accuracy and increased lifecycle time of sensor in specific road conditions.
22 cl, 15 dwg
SUBSTANCE: measurements of surface deformations ε are carried out in controlled points on a structure, which is in stressed-deformed condition. Controlled points are selected so that they are capable of additional loading regardless of the structure. In controlled points they create with the help of the available external force P, additional stresses that match in direction with the measured ones, deformation is stepwise increased by Δε, change of the external force is measured ΔPi. Loading is increased until
EFFECT: simplified process of measurement and no damage to integrity of the investigated structure.
3 cl, 3 dwg
FIELD: measurement equipment.
SUBSTANCE: invention relates to the field of measurement of voltage of initial shift (plasticity) of liquids in pipelines, for example milk in hoses of milking machines. The offered method of measurement of voltage of shift of milk column consists in that using one pressuriser the water column pressure h1 = 20 - 25 mm is pre-set in a glass vessel connected by piping with a differential water manometer and a capillary, and the capillary piping is locked by a clip, and using the second pressuriser the portion of milk is sucked into the capillary to the column length l0 = by 1 - 2 cm, then the pipeline is locked by a clip, the water column h2 = 25 - 30 mm is established, the clip is unlocked. Meanwhile, using a stop watch the time of shift of milk column t1 under the action of h1 pressure is measured, and then the time of shift of the milk column t2 under the action of the pressure h2 is measured. The voltage of initial shift τ0 is determined by the formula τ0=9.8(D/4l0)(t1 _t2)(t1/h1-t2/h2), where D - diameter of the capillary, mm. The device for measurement of voltage of shift of milk column contains the pressuriser connected with piping with the differential water manometer and glass vessel to which the horizontally located capillary and the second pressuriser is connected, and the piping from the vessel to the capillary and to the second supercharger is designed with a possibility of locking by a clip.
EFFECT: group of inventions is aimed at decrease of labour costs and improvement of accuracy of determination of voltage of initial shift of controlled liquid.
2 cl, 1 dwg
FIELD: rescue equipment.
SUBSTANCE: invention relates to reducers of breathing apparatus. The reducer has a housing and three chamber made in it separated by the walls: high-pressure chamber (HPC) and the reduced pressure chamber (RPC), separated by the first wall, the control chamber (CC) separated with the second wall from the RPC; the seat with a hole in the first wall; the partition with a movable plunger and a valve located in the RPC, separating the CC to piston and annular cavities; first channel connecting the RPC with piston cavity of the CC; the second channel connecting the annular cavity of the CC with the environment, the third channel with a throttle, which connects the RPC with the annular cavity of the CC, a check valve connected to the second channel. The method of regulating the gas flow in the reducer comprises supplying gas to the HPC, displacement of the plunger with the valve and forming a gap between the seat and the valve; entering the gas flow from the HPC and the RPC, accordingly, to the gas consumer; entering the gas flow from the RPC to the CC through the first channel; moving the partition with the plunger and the valve under the action of the gas pressure difference on them, changing the gap between the seat and the sealing element of the valve; flowing of gas from the HPC through the third channel with a throttle in the annular cavity of the CC, moving the partition with the plunger and the valve, and changing the gap between the valve and the seat, regulation of supply and pressure of the gas entering the RPC and the consumer.
EFFECT: providing regulation of a gas flow in the reducer with the given value of the reduced pressure of gas at small amplitude of the pressure oscillations.
8 cl, 3 dwg
SUBSTANCE: invention relates to the field of horticulture, namely to control means to assess the physical and mechanical properties of berries. The device consists of a portable housing with control buttons located in it, alphanumeric LCD display, force measuring sensor connected to the electrical measuring device provided with a peak detector and compensator of packaging, as well as a grip for berries mechanically connected to the force measuring sensor through the rod force distributor and made in the form of a hinged fixed and spring-loaded movable gripping cup-shaped jaws, and a control device of gripping berries fixed to the housing, and kinematically connected to the shank of the movable gripping cup-shaped jaw for providing opening and closing the gripping jaws. In addition, the device comprises a movable spring-loaded pressure rod arranged so that its pressure surface is located between the gripping cup-shaped jaws and in its motion without berries there is no mechanical contact with the elements of gripping berries, and in the presence of fruit between the gripping jaws, it presses it with its pressure surface to its the inner surface of the gripping jaws, a mechanical actuator of the pressure rod mounted on the portable housing, and the device of determining the coefficient of relative strength of berries.
EFFECT: device provides improved performance in carrying out control operations by combining the operations.
3 cl, 4 dwg
FIELD: machine building.
SUBSTANCE: in the formula
EFFECT: reduced labour inputs in the determination of pressure of safety valve opening start without the valves' demounting from a pipeline by means of measuring the forces required to open the valves at two different pressures in their inner cavity and by the following calculation of pressure of safety valve opening start.
FIELD: machine building.
SUBSTANCE: invention relates to flow regulators, particularly, to flow regulators with bowl-shape seat. Regulator consists of valve body to define fluid flow and valve seat, drive case engaged with valve body, control member arranged in drive case and adapted to displacement relative to valve body and valve seat for regulation of fluid flow at displacement between open position and closed position whereat said control member engages with valve seat, and spring articulated with control member to displace the latter to open position. Said control member has the surface directed to valve seat and furnished with recess. Recess can be reamed, or concave, or conical or have any other suitable surface.
EFFECT: higher reliability, perfected adjustment.
19 cl, 4 dwg
SUBSTANCE: reference sample comprises a metal base with a central zone of reference complex stressed condition through the base thickness. At the edges of the base at one or different sides there is one or several zones of pad welds from another metal, coefficient of linear expansion and yield point of which is lower than the coefficient of linear expansion and yield point of the base metal. The base is first exposed to high-temperature tempering, afterwards control marks or a grid of measurement bases are applied onto surfaces of the central zone of the base at two sides, for two test measurements after high-temperature tempering of the base before applying pad welds and in the end of thermal treatment of the base already with pad welds. The form of the base, locations of pad welds and the mode of thermal treatment are defined in advance as a result of computer simulation modelling by the method of finite elements with account of grades of the base metal and pad welds metals and the required reference complex stressed condition of the central zone of the base through its thickness.
EFFECT: increased validity of results of measurements of mechanical stresses in cross sections of various thick-walled metal structures.
2 cl, 5 dwg
SUBSTANCE: method of determining tangential stress in steel pipelines involves making a sample in form of a hollow cylinder from the same material as the structure; step by step loading of the sample; measuring coercitive force indicators at each loading step, with a defined orientation of magnetic flux generated in the coersimeter relative the sample; obtaining a relationship between the coercitive force indicators and values of stress in the sample; measuring the coercitive force indicators of the metal of the structure; determining stress values using the obtained relationship; tangential stress in the sample is generated by applying torque to the sample; the coercitive force is measured along the axis of the sample or the pipeline twice, while directing magnetic flux in opposite directions. The coercitive force indicator used when determining tangential stress is the magnitude of the difference between measured values of the coercitive force.
EFFECT: high accuracy of determining tangential stress in surface steel pipelines.
1 dwg, 1 tbl, 1 ex
FIELD: measurement equipment.
SUBSTANCE: method for determining residual hardening stresses involves hardening of samples and determination of residual hardening stresses; at that, a pack is formed of plates of similar size, which are numbered and marked in advance; then, the above pack is subject to hardening; after that, plate bending deformations are measured in two planes, as per which residual hardening stresses are calculated.
EFFECT: improving accuracy of determination of residual hardening stresses.
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.
SUBSTANCE: invention relates to track safety control and serves for remote detection of changes in track conditions caused by rail structure faults and occurrence of dangerous objects in groundwork. Proposed method comprises recording of vibroacoustic pulses in rail resulted from interaction of wheel pairs with rail joints at equal opposite distances therefrom. Signals registered on train passing said rail joints are filtered out and accumulated. Note here that after passage of first train over known-good track said signals are converted to maximum affinity to conserve parameters of correcting circuit. In passage of the next train of track section - signal generator result of comparison is compared with preset threshold. In case it is exceeds decision is made about availability of affected track ahead of running train.
EFFECT: higher reliability of remote detection in real time conditions.
3 cl, 5 dwg
SUBSTANCE: Invention relates to railway transport, particularly, to determination of track irregularities and other defects. Propose method consists in defining the level controlled track section of electromagnetic radiation by video control appliances in shifting electromagnetic radiation receiver along said section. Measured level of electromagnetic radiation is used to define track wear and defects. Track image is locked in visible spectrum of electromagnetic radiation in polarisation filter with rotary gating axis and processing of images by estimation of Stocks parameters.
EFFECT: determination of track whatever defects and irregularities by whatever processing means.
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