Device for noncontact inspection of wheelset roll surfaces in motion of rail vehicle

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.

7 dwg

 

The invention relates to the field of measurement technology, particularly to a device for monitoring defects wheelset wheelset and can be used to control the technical condition of the wheelset wheelset with the movement of rolling stock.

A device for measuring Bicycle wheels of railway vehicles containing the carrier sensing element for engagement with the side surfaces of the wheels, made in the form of spring-loaded probes, sensing element for engagement with the rolling surface of the wheels and the sensing element for engagement with the wheel flange lubricators, signal converters, made in the form attached on the shoulders of control elements move (.RU No. 205577764, CL 61 K 9/12, 1991).

The disadvantages of this device is that it has a large error in the measurement, which leads to inaccurate results on the measurement of car wheels caused by the content in the construction of a large number of intermediate elements, i.e. a large network of technological chain.

It is also known a device for contactless measurement of the wear of the wheels during movement of the rail vehicles containing the fixing unit slope irregularities connected with its inputs to the unit determine the speed, the block in the management and one of the outputs for the contactless measurement of rent, and the input to the second input unit of decision-making. The device also contains travel sensors recording the passage of wheels, remote from each other at a distance of 500 m, the unit rate associated with the position sensors, the control unit associated with the unit, determine the speed and position sensors, the node contactless measurement of car, consisting of a high-frequency circuit, which includes a measuring device, rigidly connected to the rail and connected with the oscillator, which is connected to the block selection and centering the low-frequency component, the envelope of the amplitude-isolated voltage, and the unit of measurement of the average value of the amplitude-modulated voltage carrier frequency, which characterizes the overall car (wear). Site slope calculation irregularities contains block definition extreme values of the variable component of the voltage envelope, which also fulfills the function of a binary quantization of the derivative of the voltage-variable component, which is connected to the measurement unit, the average value of the amplitude-modulated voltage carrier frequency, connected in series generator linearly varying voltage, a memory unit for storing the amplitudes of the voltage and the unit stresses.

The compute node contains also connected to the block is the definition of sequential circuit, includes generator linearly-varying voltage, the memory block, the block dividing voltage unit multiplying the voltages associated with the memory block connected to the control unit. The compute node output associated with the unit of decision making, the second input is connected to the measurement unit, the average value of the amplitude-modulated voltage of the carrier frequency.

A memory unit for storing the amplitudes of the voltages and the memory block used for storing the amplitude of the input voltage generators linearly-varying voltage. These stresses are proportional to the length of the half-wave irregularities and the moving speed of the wheels.

A memory unit connected to the control unit serves for storing a voltage proportional to the amplitude of low-frequency voltage envelope, depending on the depth of the irregularities.

The output of block dividing voltage is generated a signal proportional to the slope of the measured roughness. The block decision produces a diagnostic signal on the compliance time overall uneven wear of the wheels of permissible values. The signal decision is produced after the release of the controlled wheels from a range of the measuring transducer is limited by the travel sensor (A.S. USSR № 556073, CL 21 To 9/12, 1977).

The disadvantages of the known devices also include the I the design complexity, associated with a large number of parts and components that determine a large error in the measurement of the Bicycle wheels.

Object of the invention is a device for contactless control of defects wheelset wheelset with the movement of rolling stock designed to simplify the structure, to provide continuous monitoring-measurement of all defects wheelset wheelset with the movement of rolling stock in both small and large distances with high accuracy, reduce the complexity of the process of monitoring the status of the wheelset wheelset with the movement of rolling stock.

The technical result of the invention is to increase safety and reduce accidents in the operation of rail rolling stock.

This is achieved by the fact that in the proposed device for contactless control of defects wheelset wheelset when driving rail vehicles containing nodes contactless control of the wheelset wheelset and the logger associated with these nodes, according to the invention, it contains the power supply for pulse shaping, resetlayout box and pipe with wires, nodes contactless control is executed in the form of a control sensor wheelset wheelset and sensor control crest is Olesno pair, which is fixed by nuts on the bracket installed on the PTC site and protected from rain covers, with one end of the bracket, which is fixed to the sensor is cut into two parts, one of them, rectilinear, has control sensor wheelset wheelset, and the other is bent at an angle to the straight side - mounted control sensor crest wheelset, with the side surface of the bracket is made a surge in the form of a rectangular trapezium, and to stiffen the connection of the rectangular line to the bracket made scarf, located on the side and on the end part of the rectangular a-line.

The proposed device for contactless control of defects wheelset wheelset when driving rail vehicles represented in the drawings.

Figure 1 shows the functional diagram of the device;

figure 2 - General view of the device;

figure 3 - location of the proximity sensors relative to the wheelsets;

figure 4 - mounting sites for contactless control of the wheelset wheelset with bracket on PTC site wheelset;

figure 5 - bracket;

figure 6 - the same figure 5 is a perspective view of;

figure 7 - diagram of the contactless control of defects wheelset wheelset when moving rail mobility is on composition.

The proposed device contains nodes for contactless control of the wheelset wheelset 19 and the Registrar 11. It contains a power supply 1 for pulse shaping, resetlayout box 2 and the tube with the wires 3.

Nodes contactless control 19 is made in the form of a control sensor surface of the pair of wheels 4 and sensor control of the crest of the pair of wheels 5, which are secured by nuts 7 on the bracket 6 that is installed and fixed on the PTC site by screws 10, weatherproof housings 8 and 9.

One end 12 of the bracket 6, which is fixed to the nodes of the contactless control 19 has a slit 13 into two parts 14 and 15, on one of them, rectilinear 14, a control sensor wheelset wheel pair 4, and the other is bent at an angle to the straight portion 15, a sensor control crest wheelset 5, with the side surface of the bracket 6 are of a burst of 16 in the form of a rectangular trapezium, and to stiffen the connection of the rectangular line 16 to the bracket 6 is made solitaire 18 located on the side and on the end part of the rectangular the line 16.

At the other end of the bracket 6 are cut 17 at an angle to the generatrix of the bracket 6. Nodes contactless control of the wheelset wheelset 19 formed from the sensors 4 and 5, is installed in the operating state the education gap 20 between the ends 21 of the sensors 4 and 5 and the rolling surface of the wheel pairs 22. The recorder 11 is connected to the computer network 23.

The proposed device for contactless control of defects wheelset wheelset with the movement of rolling stock works as follows.

For Assembly of the device is initially producing Assembly units and parts on the car and in the car. For this to buochs pair of wheels attached by screws 10 to the bracket 6. Then to part 15 of the bracket 6 and nuts 7 attach the sensor 5, by selecting in advance the end face 18 (7) of the sensor 5 at a specified distance education gap 17 relative to the surface of the crest wheelset, then the car is fixed resetlayout box 2 and the tube with the wires 3 which communicate with the sensors 4 and 5, as well as with power supply unit 1 mounted on the carriage. In addition, the car set the recorder 11, are connected through wires with power supply unit 1 and units 19 through razvitsya box 2.

Then move rail rolling stock and include the power supply 1, and the signals from the nodes of the contactless control 19 on the state of the wheelset wheelset is transmitted by wire to the box 2, and thence to the recorder 11, on whose testimony the judge about the status of the wheelset wheelset.

Further, these data from the register 11 are transferred in webcam connected to a computer network,which provides information about the status of all wheelsets passing rolling stock and timely prevention of emergency situations increasing the safe operation of rail vehicles.

Thus the proposed device for contactless control of defects wheelset wheelset when driving rail vehicles allows to improve safety and reduce accidents in the operation of rail rolling stock.

Device for contactless control of defects wheelset wheelset when driving rail vehicles containing nodes contactless control of the wheelset wheelset and the logger associated with these nodes, characterized in that it comprises a power supply for pulse shaping, resetlayout box and pipe with wires, nodes contactless control is executed in the form of a control sensor wheelset wheelset and sensor control crest wheelset, which is fixed by nuts on the bracket, installed at buochs, and protected from rain covers, with one end of the bracket, which is fixed to the sensors, is cut into two part, on one of them, rectilinear, has control sensor wheelset wheelset, and on the other, bent at an angle to the straight part, a control sensor crest wheelset, with the side surface of the bracket is made a surge in ramohalli line, and to stiffen the connection of the rectangular line to the bracket made scarf, located on the side and on the end part of the rectangular line.



 

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