Device for measuring the longitudinal displacement of the rail scourge railway
(57) Abstract:The invention is intended for measuring the longitudinal displacement of the rail scourge railway track at its current renovation. The vehicle mounted proximity sensors for detecting the marks on the rail of the scourge and proximity sensor for detecting marks on the frame. Proximity sensors for detecting the marks on the rail of the scourge spaced along the vehicle and connected to a recording device through the respective counters and computing device. Contactless sensor for detecting marks on the frame is connected to a recording device via the pulse counter and the computing device. To the corresponding inputs of the pulse counter connected to the pulse generator. The technical result - the increase measurement accuracy. 2 Il. The invention relates to a device for measuring the longitudinal displacements of rail lashes welded rail track and can be used in its current contents to determine the values of the displacements plots rail lashes in a longitudinal direction relative to the frames.Known ustroystva resistance, made in the form of a segment of rail and fastened on the measured track section scourge with free change of its linear dimensions, while the reference resistance connected in series to the circuit section of rail scourge and a source of electrical current and is included in the double measuring bridge with locking device (SU 1710640 A1, E 01 35/00, 07.02.92 year).This device does not move along the path and to determine the longitudinal movements of other portions of rail lashes either sequentially transfer and install it to the device on these sites, or to mount several of these devices along the rail lashes, which reduces the performance of the work, monitoring the displacements of rail lashes. In addition to this the device must meet the highest quality requirements for electrical contact of the device with rail whip, taking into account the influence on device reads electromagnetic fields (interference from the contact wire and the currents flowing in the rail scourge (traction current and Tiki signaling).A device for measuring the longitudinal movement of the rails of the railway track containing transport sredska connection rails, the encoder is connected to the logger diode bridge and a threshold device (SU 1786220 A1, E 01 35/00, 07.01.93 year).In the measurement process is determined by the distance between the joints of rail lashes and closest to the corresponding interface of the terminal is bolted connections lashes with pojelavam base. Use the device to determine the offset end sections of rail lashes, when this cannot be determined offset in the longitudinal direction of the path middle sections of rail lashes. In this case, the terminal-bolt connection is the label on the marker ("lighthouse" spała), which is determined by the offset end portion of the scourge, and the joint can be mistaken for the mark on the rail of the scourge.In addition, this device has a number of disadvantages, namely: terminal rigidly connected to the rail, so prone to move with him when moving sleepers in ballast, low accuracy of measurements due to slippage of the sensor path along the rail, the possible error in the measurement due to the lack of gap junction rail lashes, it is important to consider the impact on the device reads electromagnetic fields (interference from the contact wire and the currents flowing in the rail scourge (although the sites to track the scourge (the length of the section, for example, 100 m between frames) along its entire length, improving the accuracy of measurement of progress rail stations scourge, the reduction of time for the measurement.To achieve this technical result, the device for measuring the longitudinal displacement of the rail scourge railway track containing the vehicle, installed contactless sensor for detecting the marks on the rail of the scourge and proximity sensor for detecting marks on the frame, connected to the recording device equipped with installed on the vehicle the second proximity sensor for detecting the marks on the rail of the scourge to exclude encoder, counters, clock frequency, and the computing device, this proximity sensors for detecting the marks on the rail of the scourge spaced along the vehicle at a fixed distance and are connected to a recording device through the respective counters and computing device, and a proximity sensor for detecting marks on the frame is connected to a recording device via a pulse counter, one input of which is connected to the output of the first in the direction of movement t of the said generator is connected to the corresponding inputs of the counters.In Fig. 1 shows a diagram of a device for measuring the longitudinal displacement of the rail scourge of railway. In Fig. 2 is a diagram of the locations of the sensors of this device relative to the marks on the rail of the scourge and the rapper.In the operation of jointless tracks can occur progress of individual sections of rail lashes due to the redistribution of stresses in the magnitude and in sign, while the ends of the pipe can be fixed. The change of the stress state of jointless tracks can be identified by the change in the distance between the mark on the rail of the scourge and the mark on the reference mark in each control section. The marks on the rail of the scourge executes, for example, transverse stripes, applied bright oil paint on the top part of the foot rail of the lash marks on the frame are, for example, transverse stripes, applied bright oil paint on the pad "lighthouse" sleepers. Immediately after laying rail lashes they are mentioned labels so that the label on the rail of the scourge and the label on the lining were on the same line. As a reference point can be used "lighthouse" sleepers (for example, sleepers, located opposite the picket table is further fixed facilities around the way.Device "lighthouse" sleepers must be performed in accordance with TU-2000. Terminals must be connected (or terminal is placed a special washer) so that the inner face does not touch the soles of rail scourge. Rubber Podilskyi gaskets should be replaced by a strip of low friction, such as plastic, that is, to "lighthouse" sleeper did not prevent longitudinal movement of the rail scourge.Device for measuring the longitudinal displacement of the rail scourge welded rail track contains a contactless optical sensors 1, 2 and 3, mounted on the beam of the truck or on the frame rail of the vehicle, for example, car potenzmitel, and connected to the corresponding inputs of the former (4 pulses. Sensor 1 is the first in the direction of the working movement of the car-potenzmittel. Sensors 1 and 2 spaced along the carriage potenzmitel and are located at a fixed distance d from each other in the same plane. Sensors 1 and 2 are designed to detect the marks on the rail of the scourge and aimed at the upper part of the foot rail of the scourge, and the sensor 3 is designed to detect marks on the frame and is directed, for example, under the of tchekov 6 and/or 7 pulses. To the other inputs of the counters 6 and 7 of the pulse generator 5 is connected the clock frequency. On count 6 of the pulses are the pulses from the sensors 1 and 3 and the generator 5, and the counter 7 - from sensors 1 and 2 and the generator 5. The outputs of the counters 6 and 7 pulses are connected to the inputs of the computing device 8, the output of which is connected to a recording device that includes a monitor 9 and block 10 memory.Shaper 4 pulse counters 6 and 7 of the pulse generator 5 clock frequency computing unit 8 and the recording device (monitor 9 and block 10 memory) mounted on the carriage-potenzmittel.When driving car potenzmittel sensor 1 detects the mark on the upper part of the sole rail whip and sends a signal to the imaging unit 4 pulses, then the sensor 3 detects the mark on the frame (lining "lighthouse" sleepers) and sends a signal to the imaging unit 4 pulses, after which the same mark on the upper part of the sole rail scourge sensor 2 detects and sends a signal to the imaging unit 4 pulses.The mark detection sensors 1, 2 and 3 as follows. Laser led each sensor irradiates the analyzed surface (the upper part of the foot rail of the rod or the properties of the optical signal and generates at the output a certain level of an electrical signal. The level of the electric signal at the output of the sensor depends on the reflectivity of the surface being examined (the lighter, the signal level above). Thus, the motion sensor light over the mark on the rail of the scourge and the reference point on the sensor output obtained an electrical impulse.The implementation of sensors 1, 2 and 3 optical is one of the possible options for their implementation. In case the sensors 1, 2 and 3, for example, magnetic marks on the rail of the scourge and benchmarks applied using appropriate methods that reads these sensors.With shaper 4 pulses required forms arrive at the counters 6 and 7 pulses which is supplied and the clock frequency of the generator 5. The counter 7 determines the number of pulses of the generator 5 for the time interval between pulses from sensor 1 and 2. The counter 6 determines the number of pulses of the generator 5 for the time interval between pulses from the sensor 1 and 3. The device 8 performs calculation of a value equal to the distance S (Fig. 2), by multiplying the known distance d on the ratio of the number of pulses from the counter 6 to the number of pulses from the counter 7. The value of S is the distance between the mark on the upper part of the sole rail scourge and meta-laying rail scourge or since the previous measurement, the provisions of sections rail scourge. This value shifts the section of rail scourge with the computing device 8 is displayed on the monitor 9 and stored in the memory block 10.Instead shaper 4 pulses can be used in analog - to-digital converters at the inputs of the counters 6 and 7 pulses, and the output of the sensor 1 is connected with the corresponding inputs of the counters 6 and 7 pulses, the output of the sensor 3 is connected with a respective input of the counter 6 pulses, and the output of the sensor 2 is connected with a respective input of the counter 7 pulses.The device provides a measurement of the longitudinal movements of sections of rail scourge relative to the fixed reference points along the railway track at a certain distance from each other, with great accuracy and little time spent on it, which gives the possibility to control for the stress state rail lashes welded railway track.High accuracy and performance are achieved through the use of completely non-contact measurement system. The use of two sensors located at a fixed distance d from each other, to identify the marks on the rail of the scourge eliminates mehanicheskogo contactless control of the displacements of the individual rail sections of the scourge, located at a certain distance from each other relative to the fixed reference points, with a high degree of accuracy and with a small investment of time (compared to the closest analogue). Device for measuring the longitudinal displacement of the rail scourge railway track containing the vehicle, installed contactless sensor for detecting the marks on the rail of the scourge and proximity sensor for detecting marks on the frame, connected to a recording device, characterized in that it has installed on the vehicle the second proximity sensor for detecting the marks on the rail of the scourge, the counters, the clock frequency and the computing device, with non-contact sensors for detecting the marks on the rail of the scourge spaced along the vehicle and connected to a recording device through the respective counters and computing device, and a proximity sensor for detecting marks on the frame is connected to a recording device via a pulse counter, one input of which is connected to the output of the first in the direction of movement of the vehicle the date lsof connected to the corresponding inputs of the counters.
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.