A device for measuring bicycle wheels of railway vehicles
(57) Abstract:Use: rail transport in systems for control of transport vehicles. The inventive device includes a carriage with a sensitive element for engagement with the side surfaces of the wheels made as installed on the vertical axis 2 of the roller 3 made in the form of spring-loaded Shopov sensitive element 9 for engagement with the rolling surface of the wheels and the sensing element 10 for engagement with the wheel flange lubricators, signal converters, made in the form mounted on the rods 11 and 12 controls the movement 13 and 14, and the Registrar 17. 1 C. p. F.-ly, 3 ill. The invention relates to railway transport and can be used in systems to monitor the condition of vehicles.A device for measuring Bicycle wheels of railway vehicles containing installed rails in the passage area of the wheel sensors to interact with the side surfaces of the wheels and their crests, respectively, and the sensing element to start the measurement, the last two of which through the respective signal converters swig conditions train depot.This objective is achieved in that the device for measuring Bicycle wheels of railway vehicles containing installed rails in the passage area of the wheel sensors to interact with the side surfaces of the wheels and their crests and the sensing element to start the measurement, the last two of which through the respective signal transducers associated with the Registrar, provided with a sensitive element for engagement with the rolling surface of the wheels, the latter and the sensing element for engagement with the ridges of the wheel is made in the form of probes, and installed between the ends of two adjacent rails of the movable and spring-loaded in the horizontal plane of the carriage, having a base in the form of a dovetail, posted in made in rigidly attached to the sole plate rails guide groove for movement therein in a direction perpendicular to the longitudinal axis of the rails, the carriage is made with two vertically oriented cylindrical cavities have mentioned probes, which is spring-loaded in the vertical plane, the signal converters made in the form of associated thrust through with probes of Allenstein with a horizontal shelf, made with a cavity open to the side rails. The sensing element for engagement with the side surfaces of the wheels are made in the form of a roller mounted in said cavity vertically fixed on the axis.In Fig.1 schematically shows the device before starting the measurement, a top view; Fig.2 the device at the time of measurement of the Bicycle wheel of Fig.3 end view along arrow A.A device for measuring Bicycle wheels of railway vehicles made in the form of a movable in the horizontal plane of the carriage 1, is equipped with a vertical axis 2 with the roller 3, which is designed to interact with nathusii wheel, pushing the carriage 1 to the inside of the track. Between the end portions of the rails 4 and 5 is rigidly fixed to the base 6 attached to the soles of the mentioned rails, provided with a notch 7 for placement and movement of the carriage 1. In order that the carriage 1 can move only in the horizontal plane, the neck 7 has the shape of a swallow's tail" (see Fig. 3). To return the carriage 1 to the initial position provided by the spring 8. In the carriage 1 has a cylindrical cavity for placement of the sensing elements in the form of spring-loaded probes 9 and C-scale amplifiers 15 and 16 are connected to respective inputs of the recorder 17. The probe 9 is designed to measure the amount of rent, and the probe 10 to determine when the measurement on the tape recording device 17, which is the recording of both signals. The distance "a" depends on the type of the measured wheel and it is therefore necessary to have a set of carriages 1 for each type of wheels of the fleet of locomotives and wagons. The roller 3 can communicate with the Central part of the bandage.Before using the device, check the mutual position of the pointed heads of the rods 9 and 10 to a reference sample, is designed as a portable sector bandage wheels, and record the marker pens of the recorder on the tape recorder 17. If necessary, the head of the probes 9 and 10 is screwed into the cylindrical body of the probe, or Vice versa vivencial of them, then) these heads in a position corresponding to the zero rent. Then let the vehicle through the device and measure his car wheels on both sides of the path, which provides two carriage 1, installed in the crevices of both lines of rails with some shift to measure Bicycle wheel wheelset was carried out sequentially one after the other hand, although different carriages, but OBV with the carriage, under the influence of the wheel.The wheel 18 during its movement along the rail 4 comes into contact with the roller 3 with its rounded crest 19 that leads to the displacement of the carriage 1 to the right, i.e., inside the track in the measuring position in which the roller 3 communicates with the vertical surface 20 of the drive wheel 18, by setting the carriage 1 so that the head of the probe 10 has been in contact with the ridge 19 on the distance "b" from the vertical plane 20, and the head of the probe 9 at a distance "a" in contact with the rolling surface of the wheel 18.Move the probes 9 and 10 under the influence of the wheel 18 in a vertical plane will be transformed by the elements 14 and 13 control movement into the corresponding electrical signals which are amplified large-scale amplifiers 15 and 16 and then fed to the corresponding inputs of the recorder 17, the control feathers recorder.The device provides high quality measurements of Bicycle wheels vehicles without stopping on the last position control, which allows you to shorten the scan time and location of a moving object in the repair. The test results of each pair of wheels fixed on the tape recorder and can serve as documentary podtverzhdeniya.neskolko vehicles contains the set of the rails in the passage area of the wheel sensors to interact with the side surfaces of the wheels and their crests and the sensing element to start the measurement, the last two of which through the respective signal transducers associated with the Registrar, characterized in that it is provided with a sensitive element for engagement with the rolling surface of the wheels, the latter and the sensing element for interaction with a crest wheels made in the form of probes, and installed between the ends of two adjacent rails of the movable and spring-loaded in a horizontal plane, a carriage having a base in the form of a dovetail, posted in made in rigidly attached to the sole plate rails guide groove similar to the base form, the longitudinal axis of which is perpendicular to the longitudinal axis of the rails, whereby the carriage is made with two vertical cylindrical cavities have mentioned probes, which is spring-loaded in a vertical plane, and the signal transducers made in the form of associated thrust through with probes controls movement, and the Registrar - recorder.2. The device according to p. 1, featuring the covered side rails, as the sensing element for engagement with the side surfaces of the wheels are made in the form of a roller mounted in said cavity vertically fixed on it axis.
FIELD: railway transport; instrument technology.
SUBSTANCE: proposed wear checking system contains optical receiving projection system and converting-and-calculating unit. It includes also car position pickup and car counter whose outputs are connected to inputs to inputs of converting-ands-calculated unit. Optical receiving projection system consists of sets of stereo modules. Rigid structure of each module includes two CCD television cameras and lighting unit. Outputs of stereomodules are connected to corresponding inputs of converting-and-calculating unit. Stereomodules are rigidly installed relative to each other.
EFFECT: enlarged operating capabilities.
3 cl, 2 dwg
FIELD: definition of the diameter of wheel pairs.
SUBSTANCE: the mode and photolaser arrangement for definition of the diameter of wheel pairs of a railway mobile train in conditions of its moving is based on the principle of measuring with the help of a photolaser arrangement of sizes which characterize the changing of the diameter of wheel tread and a degree of deterioration(wear) of the wheel pair band and also is based on the principle of computing the diameter of the wheel according to a wheel rolling circle according to the formula characterizing the changing of the diameter depending on current meaning of a chord of the wheel tread and the magnitude of a wheel tread wear. The execution of the mode of measuring of the chord and of the wheel tread wear is made by way of using of laser sources of light installed along one side of the track, horizontal and vertical photoreceiving mould "toolbars" installed on the other side of the inset in the rail and the track. Precision of measuring of geometric sizes of the wheel pair in the range of ±0.1 mm is achieved at the expense of using of laser sources of light and of photoreceivers in the shape of the mould "toolbars".
EFFECT: increases quality of precision of measuring; using of a laser commutation system and reliability of measuring elements under any weather conditions.
4 cl, 6 dwg
FIELD: railway transport; measuring facilities.
SUBSTANCE: invention can be used automatic control of condition of wheelset and its position relative to rail track. According to proposed method of monitoring of wheelset parameters and its position relative to rail track, working surface of wheel is radiated by light and wheel profile and position of wheelset relative to rail track is determined basing on received radiation. Scattered radiation from points on irradiate working surface of wheel is used with measurement of coordinates of said points, and, using received coordinates, completed profile of wheel is formed which is compared with standard profile of wheelset. Basing on results of comparing decision is made on whether wheelset can be operated or should be rejected.
EFFECT: possibility of monitoring irrespective of condition of surfaces under checking.
FIELD: transport engineering; rail vehicles.
SUBSTANCE: invention relates to measuring facilities and it can be used for checking condition of rail vehicle wheels 1. According to propose method, axle-box of wheel 1 to be checked and rail 3 with contrast mark 9 are exposed to flow of radiation, and image is received by radiation receiver. Radiator and matrix receiver are placed at a distance from rail track. Axle box and rail are irradiated with flow in form of train of short pulses with frequency proportional to wheel speed. Position of maximum of correlation functions obtained at correlation of standard fragment of image of axle box or rail mark with image in current frame is determined and changes in radii and parameters of wheel are judged by changes of vertical coordinates of maxima of correlation functions of axle boxes and rail in image frames.
EFFECT: improved reliability, enlarged functional capabilities.
2 cl, 4 dwg
FIELD: railway transport; auxiliary equipment.
SUBSTANCE: invention relates to device for checking condition of wheelsets of rail vehicles. proposed device contains optical measuring unit including optical measuring sensor made in form of laser focused radiation source 1 and optically mated linear radiation receiver 6 and also signal electronic processing unit. Device is furnished with prechamber 3 with nozzle 4 located before source of laser radiation coaxially with source and compressed air supply system connected with prechamber.
EFFECT: enlarged operating capabilities of device in contaminated atmospheres.
FIELD: railway transport.
SUBSTANCE: invention relates to method and devices for detecting slides on wheel roll surface. Surface of wheel is irradiated by laser beam. Information of presence and parameters of slide is found by comparing obtained sequence of profiles of flange top by changed distance between flange top and upper edge of rail. Proposed device contains optical measuring systems 1 and 2 connected with electronic information processing unit 3 arranged at a distance from one another to permit taking measurements of flange profile of one and the other half of wheel.
EFFECT: increased speed and facilitated measurements.
2 cl, 3 dwg
FIELD: railway transport; auxiliary railway equipment.
SUBSTANCE: proposed device for noncontact inspection of wheelset roll surfaces in motion has roll surface check pickup 4 of wheelset and wheelset flange check pickup 5 secured on bracket 6 installed on axle box and protected from precipitation by hoods 8 and 9, recorder connected with pickups, supply unit to form pulses, splitter box and tube 3 with wires. End of bracket on which pickups are secured is divided into two parts, straight-line one and curved one. Boss in form of right-angled trapezium is made from side surface of bracket. Gusset is made to render rigidity to connection of right-angled trapezium with bracket, said gusset being arranged both on side and end face parts of right-angled trapezium.
EFFECT: increased safety, reduced accidents in operation of rail vehicle.
FIELD: railway transport.
SUBSTANCE: invention relates to methods and devices for technological control. According to proposed method of dimensional checking of train parts on the run, rails are used as guide members setting trajectory of movement of part under checking, and also data processing system, optical measuring system whose distance pickups consist of radiator and receiver designed for recording backscattered radiation. Measuring pickups are arranged in space at both sides relative to guide member on additional vibration-isolating base, measuring system is secured stationary, moment of train approaching is recorded and identification of car is carried out, measuring pickups are calibrated, measuring pickups are synchronized with guide member position pickups and moment of intersection of area of measurement by part is determined. Moment of intersection of area of measurement by part is determined in one and the same position of part relative to guide member. Then measured surface of part is scanned in direction of part movement, measurement is done along line of scanning in one direction, data are gathered and processed taking into account weight of car, corresponding deflection of rail and speed of train. When processing the data, angle of attack of wheel on rail and deformation of rail at moment of taking of measurement are taken into account additionally, the moment id recorded when part under measurement leaves area of measurement, and required parameters of part are determined. According to invention, complex of dimensional checking of train parts on the run includes train approach moment pickup, pickup recording moment when part under measurement leaves are of measurement, vibration-isolating base for fastening the pickups, pickup determining position of part relative to guide member and synchronizing device for time gating of readings of all pickups. Optical measuring pickups are arranged in space at different sides of guide member, are provided with calibration device and made for scanning all surface of part to be measured. Receiver of distance pickups is provided with at least one quick-acting position sensitive photodetector. Rail displacement pickup is made with possibility of checking deformation of rail.
EFFECT: increased accuracy of measurements.
3 cl, 1 dwg
SUBSTANCE: invention relates to the equipment for measuring railway rails and wheels. The method of determination of the clearance between the railway wheel ridge (2) and rail head (1) includes attaching a pickup with its sensitive element directed towards the point of contact between the wheel and rail head to a crosswise beam (3) of the car truck. Simultaneously with the start of the car, the data coming the pickup on displacement of the wheel ridge relative to the rail head at a preset distance is continuously recorded. Then the pickup is removed from the car, the data carrier is removed from the pickup and the data obtained is processed using a computer programme to provided for a digital visual picture. On the picture thus obtained, a video image of a ruler with divisions is imposed to define the abode said clearance in divisions of the ruler. The said device has a case with a core, a pickup and light sources arranged on both sides of the pickup at an equal distance from it.
EFFECT: simpler design and smaller sizes of the device.
3 cl, 4 dwg
SUBSTANCE: method of railroad wheel pair contact surface wear monitoring proceeds from the measurement of the rail vertical vibration acceleration effected using an accelerometer and comprises converting the said data into electrical signals to be compared to reference signals corresponding to permissible defect tolerances. The method includes, additionally, measuring the wheel rim vertical travel along the contact surface development length by means of consecutively arranged magneto electric pickups, establishing the dependence of the induced signal magnitude upon the wheel rim position and comparing the resulted ratio with the defectless wheel reference data. The results obtained are correlated to the wheel pair linear speed to disclose, finally, the wheel defect size.
EFFECT: accurate measurement in wide range of train speeds.