SU518786A1 - Device for detecting overheated railway axle boxes - Google Patents

Description

(54) DEVICE FOR DETECTING HEATED TOWNS OF RAILWAY MOBILE COMPOSITION

TeLo, Element., .nt OR and the control unit pack.opitel.

At El m between the time delays of the delay units of the signals passing physical units (i,). delays of the command of recording information t) and. delaying the reset of the transducers of the amplitude of the signal to the code (t) from the moment of passage of the second {along the train) sensor of the wheel passage there is an inequality: {Q

.f,

The structural scheme of the proposed device is shown in the drawing,

The device contains left 1 and right 2) in floor reading devices with infrared receivers, optics,

power circuits, amplifiers and shut-off valves. The device also contains dates for the wheel drive .3, 4, and 5, rail-2 superimposed overlay circuit 6, amplification of signals 7 and 8, signal shaping block from iSyKc 9 and 10, support block 11, block of gating pulse formations 12; the passage of physical mobile units 13, the unit forming the commands of the beginning and end of train 14, the transmitters of signals 15, 16, 17 and 18, the instrumentation equipment 19 and 20, the receivers of signals 21, 22, 2b and 24, gtuli threshold devices 25 and 26, threshold voltage setting unit 27, element OR 28, b: g delay signal of the passage mark physical units 29, AOR command decoder, converters M PL1. signal hubs in code 31 and 32, the delay unit of the pulse pulse of the amplitude converters of the signal in code 33, the delay unit of the information recording command 34, the physical axis of the mobile unit 35, 49 blessing the physical unit 36, the information recording unit 371 38, 39 and 40, drive 41 and drive control unit 42.,

When the train passes through the control section 45, the device operates as follows. At the time the train approaches the control section it is shunted. the rail and the overlap and on the floor readers 1 U 2 signal is given to the opening fo of the shutter valves, and the command formation unit 14 is given the signal to start the train. By this signal, a block 14 forms a command to start the train, which is transmitted through the signal transmitter 18 and the channel-forming Upsplot 19 and 20 to the receiver 24 and then to the command decoder 30. The latter generates the command to start the train, which removes the ban from receivers 21, 22 and 23, sets- M

c, in the physical mobile units account unit 36, the code value of the first subunit of the unit and the information accumulator 41 is connected via the unit 42 of the control unit 42. The command to start the train can be carried out using a code or any other impulse signal.

When the wheels of the first mobile unit pass through, in the zone of sensors at the passageways 3 and 4, infrared radiation from the axle box bodies is perceived by infrared radiation detectors placed in the reading devices 1 and 2, converted into electrical signals, which are fed to the gain blocks 7 and 8.

At the outputs of these blocks, the amplitudes of the signals from the books will be proportional to the levels of heating of the bodies of the books. In order to exclude the flow of signals from extraneous heated objects, the signal conditioning units from Books 9 and 10 perceive the force from the reinforcement blocks 7 and 8 only when the wheel is in the zone between sensors 3 and 4. This is achieved by using a gate generating unit 12.

If at the outputs of the 7n S amplification blocks there are no signals from the axle boxes or very Ma.jbi (low heating of the axle boxes), then from block 11 to the inputs of the blocks forming 9 and 10 a reference signal is supplied, the level of which does not exceed the average heating level of the axle box of the train .

Blocks 9 and 10 form signals from the axle boxes, normal them in duration, and transmit these signals to the inputs of the transmitters 15 and 16 at the time the wheels pass over sensor 4.

Signals from the axle boxes through transmitters 15 and 16, channel-forming equipment 19 and 20 to receivers 21 and 22 can be transmitted in any known manner using amplitude, frequency, or phg seismic modulation.

The signals from receivers 21 and 22 arrive at threshold devices 25 and 26. At the same devices, from block 27, a threshold voltage is set, the magnitude of which can be regulated within wide limits.

If the amplitude of the sitnal from the axlebox, i sets the threshold voltage, the threshold device 25 and 26 passes this signal to the output transducer of the amplitude of the signal to code 31 or 32 where the signal is encoded.

Simultaneously, from the outputs of the receivers 21 and 22, the signals are sent to the OR element and then to the counter of the axis of the physical FIT

unit 35, where the threshold number of the axis of the controlled mobile is calculated.

units.

When the signal from the axle box (on one or both sides of the train) exceeds the threshold voltage value specified by the device26, the output signal from device 25 or 26 also goes to the delay unit of the information recording command command 34. With a time delay sufficient to convert

; amplitudes of the analog signal from the axle box to the code and counting the axis number of the physical unit with a meter 35, from the output of 34 k block

I data storage 41 connect; the encoders 31 and 32, the counters of the axis of the physical unit 35 and the unit of the account of the physical moving units 36 through the block; Records 37, 38, 39 and 4O. At the same time

The control unit 42 is launched, and the information enters the drive 41. In this case, the drive enters: the sequence number of the physical mobile unit, the order number of the axis of this mobile unit, which has a heating level of the body of the box above-. Sews the threshold value of the devices 25 and 26, and the amplitude values of the signal® from the books for the right and left sides of the train.

After that, with a delay of the bilge, sufficient to record information into the drive, the delay pulse block 33. generates a reset signal. Amplitude converter with g: code to code 31 and sj.

. Information about the subsequent bucks; ; the same MOBILE unit is recorded in accumulator jib in the same way.

The pass marker of the physical mobile units 13 is controlled by the sensors for passing the wheels4, 5 and generates a signal from -f

: marks at the moment of passage by the last wheel of the mobile unit of the sensor 4.

This signal is transmitted through the transmitter 17 to the receiver 23 and further to the delay block 29. As the delay time is 2: 9 block, the delay time of the block 34 is longer. that the signal from block 29 enters the input of blocks 35 and 36 after the information from these blocks has already been entered into the drive 41. According to the signal from block 29, the counter 35 is set to the initial position, and in block 36 the value of the corresponding code of the second MOBILE unit is set.

When monitoring other mobile units

the sequence of operation of the equipment is similar.

When the last mobile unit of the train passes the control section, the signal

From the re / owl circuit of the overlay 6, the shut-off dampers in the reading devices Pstbha 1 and 2 are closed, and in block 14 a command is produced for the end of the train, which is transmitted to the receiver 24 and then to the command decoder 30. At the command end

the trains from the output of the command decoder 30 are prohibited for the operation of receivers 21, 22 and 23, and the delay of the command for writing information 34 is started and the total number of mobile units in the train is entered into the information accumulator {by this time the blocks

31, 32 and 35 are already in their original state x).,

As can be seen from the description of the operation of the device, after controlling the train in the drive

41 information is stored on the part of the train axle boxes, the amplitudes of the signals which exceed the threshold value set by block 27. Moreover, the information on each box contains the number of the mobile unit, the axis number of the mobile unit, the heating level of the box body to the side of the train with which the box is located. Changing the threshold value

can be reset by device 25 and 26; it is possible to memorize a storage unit of information about the axle boxes, starting with the average level of heating the axle boxes in the train (control mode of the apparatus or

operation mode of the equipment before sorting. stations) and. ending emergency

level (mode of detection of superheated ones; boxes by the magnitude of the heat signal amplitude).

As H; 11 copiers 41 can be used on tape drives, on magnetic disks, on ferrite cores, rotary hammers or digital devices of parallel print with a code decoder ..; -, -...

In the latter case, the drive also serves as a data logger. When using other drives as a registrar, any information recording device (digital digital indicators, electron-beam indicators, etc.) can be used.

Claims (1)

Invention Formula Jf A device for detecting overheated axles of railway railway composition, comprising floor reading units of sensors for the passage of wheels, reinforcement units, a rail overlay circuit, blocks for generating signals from axle boxes, formed a pulse pulse, a reference signal block, a marker. fie cheshil. 1GU units, the command formation unit started the trains, the best one (4 trains, transmitters and signals irn, the command decoder and the feed counting unit of the mobile unit, are distinguished by the functionality of the device’s capabilities, it is equipped with a task block threshold voltage, converter $ 1M1G ak signal amplitudes to code, physical axis axis unit counter, information command1 delay unit, information recording blocks, information iB / LS delay unit, amplitude of signal to code converter, on by the accumulator, the OR element and the control unit of the akshitepem, where the outputs of setting the threshold voltage are connected to the inputs of the transducers, the amplitudes of the CNGs; the inputs of the delay block of the k-mand write, the third input of which is connected to the output of the command decoder, the input of the delay of the signal of the mark of a physical unit is connected to the output of the receiver of the signals of the mark of mobile units, and its output is with the counting input of the physical units counter and with the reset input of the counting unit of the base number, the second input of which is connected through the OR element, with the outputs of the thermal receivers, audio boxes, transducers outputs, physical counters and connected with the drive through the recording unit information, the second inputs of the information recording unit are connected to the output of the write command delay unit, to which one input of the storage control unit and the delay unit of the pulse amplitude of the signal amplitude converters are also connected and in the code, the output of which is connected to the second inputs of the converters, the output of the command decoder, the beginning of the train and the end of the PCD are connected to the input of the NRA accumulator and to the reset input of the physical counting unit, and the output of the control unit; control drive input. ---;.-.-, ... .i ft-h. /; - fjtf )with- -.