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.
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:
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°,
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.
FIELD: railroad transport.
SUBSTANCE: invention refers to the field of railroad transport and is meant for control and evaluation of the railroad condition. The mobile workstation for diagnosis of the railroad consists of a self-propelled vehicle that has a width meter and a special device for measuring the section parameters of the railroad that through the corresponding signal processing modules are connected to the microprocessor. The target location device is connected to the microprocessor. The mobile workstation is equipped with the remote control unit that is connected through the communications link to the receiver wired up to the microprocessor and performing the controlling function in relation to the self-propelling vehicle. The self-propelling vehicle is composed of two carts, and the second cart is additionally equipped with the vertical straight scale and navigating receiver, and the first cart has a point-contact laser-optical device. The cart frames are equipped with docking devices for splitting and connection of the carts. Each of these devices is made in the form of a cup and a rod that are separately installed on the corresponding frames of the carts.
EFFECT: improvement of the accuracy of profile measurement along the rising and dropping sites.
3 cl, 20 dwg
FIELD: railway transport.
SUBSTANCE: this invention covers gauges for check of railroad bed condition and can be applied for detection and check of corrosion damage level of operated rails by ultrasonic scanning. The method is as follows: ultrasonic signals directed into the rail base are emitted from the rail rolling surface; and the signals reflected from the rail base are received. Amplitude envelop of the received ultrasonic signals is calculated during movement along the rail according to which corrosion damage level of the rail base is determined.
EFFECT: early determination of danger areas of rail base.
2 cl, 1 dwg
FIELD: railway transport.
SUBSTANCE: this invention covers rail voltage monitoring system. This system includes a sensor unit which additionally includes a sensor to be installed directly on a rail length. The proper sensor includes a flat metal pad and at least one or more sensors installed at one side of such pad. Usually, the sensors are strain gages installed on the pad in a specific pre-set configuration. At least one data collection module is electrically connected to the sensor, and a data processing module receives and processes data collected by data collection module.
EFFECT: high measuring accuracy of rail operational characteristics.
29 cl, 10 dwg
FIELD: machine building.
SUBSTANCE: device and method is intended to be used at measurement of curvature through certain base length of object (2t), for example per 1 running metre and maximum curvature through the whole length of the object. The basis of measurements is proximity sensors. Condition of measurements is straight-line movement of the object. There can be deviations at movement in the form of transverse offsets and vibration. In order to relate measurements to length and to compose the object curvature chart, speed sensor is used. Enough number of sensors will be log2(L/t)+2 sensors. They are located at distances of (t, t, 2t, 4t, 8t, 16t,…) between each other, where t - half of the base distance for curvature measurement.
EFFECT: device allows reducing the number of involved sensors at curvature measurement.
2 cl, 7 dwg
SUBSTANCE: invention relates to railway diagnostics complexes. Proposed complex comprises control and measuring complex and onboard computation complex. Said control and measuring complex comprises system to control and estimate track geometrical parameters, system for contactless control of rails geometry, high-speed rail flaw detection system, track defect visual detection system, train dynamics control system, speed georadar control system, structure approach speed control system, ACS and telemetry state high-speed control system, contact circuit state control system, analog radio communication parameter control system and digital radio communication parameter control system. Proposed complex is equipped with multiple-discrete track and geophysical track coordinate synchroniser connected with each control and measuring system. Onboard computation complex incorporates universal system for visualisation of synchronised data of all control and measuring systems equipped with integral interface, system with combination analysis and railway structure state forecast, as well as control system provided with communication with integrated data space of railway infrastructure.
EFFECT: higher speed and validity of measurements.
SUBSTANCE: invention relates to railway transport, particularly, to auxiliary railway equipment. Proposed complex comprises removable rail carriage accommodating positioning device, track measuring equipment to measure currents track coordinates, track width, mutual position of rails in height, system to analyse track parameters, data transfer interface to transmit data to external data base computer via communication adapter, automatic device to measure curvature of rails in horizontal plane, and programmable analyser. The latter consists of measurement results registrator, device to detect the departure of track parameters from preset ones, in-situ digital indication and graphical visualisation unit that allows audio comments on every mark, and track parameters memory.
EFFECT: higher efficiency of diagnostics.
SUBSTANCE: invention relates to railroad transport. Servo drive centering device of mobile flaw detector along rail lengthwise axis comprises detectors furnished with self-centering device. The latter is made up of permanent magnets arranged on faces of every detector on crosswise displacement carriages articulated with detectors and arranged on guide bars rigidly coupled with load bearing bar of servo drive system suspension.
EFFECT: higher quality of rail state control, possibility for flaw detection at high speeds.
SUBSTANCE: proposed system comprises data collection device mounted at rolling stock head and consisting of microcontroller whereto connected are transmitter, receiver and data output unit, transceiver module arranged at rolling stock tail and comprising transmitter and receiver, transmitter being connected via intercom line with data collection receiver. Measuring module is arranged on controlled track section. Said measuring module consists of receiver with its output connected to power accumulator, transmitter with its input connected to microcontroller output with its input connected via interface with vibration and temperature pickups. Vibration pickups are secured to rails or sleepers of controlled track section. Temperature pickups are secured to controlled track section rails. Power accumulator output is connected to microcontroller and transmitter supply inputs.
EFFECT: higher validity of control.
SUBSTANCE: invention relates to control instruments. Proposed system comprises radiation source 2 and signal processor 3 and photo receiver 1 made up of level transducer 21 and receiving analyser system 11 including lens 13 and position-sensitive optical radiation receiver 15, arranged on control truck 9 arranged on track 10. Output of photo receiver 1 is connected to input of signal processor 3. Radiation source is arranged on at least one contact-wire line support 4 or other structure, and is made up of reference mark containing at least two modulated light diodes 5 and photo receiver (b) and radiation source control circuit connected to independent power supply input 7. Photo receiver unit comprises extra receive-and-analyse system 12, control module 17 including at least one light diode radiator 18, photo receiver 18 and data signal processing circuit 20 with its output connected with input of second processing unit 3 with third input connected to level transducer 21 rigidly coupled with photo receiver 1.
EFFECT: higher accuracy of measurement.
SUBSTANCE: invention relates to railway transport. Proposed method comprises measuring rails spacing by means of contact and contactless (laser) metres. Distances between rails measured by contact and contactless metres are compared. If discrepancy in readings of said metres falls below tolerance, mean arithmetic values is entered into memory. If discrepancy in readings of said metres exceeds tolerance for straight track section, readings of contactless metre are entered in memory. In control track curved section, track curve radius is defined.
EFFECT: higher accuracy of control.
6 dwg, 2 ex
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.