SU1579804A1 - Apparatus for detecting wheel pair slipping - Google Patents

Abstract

This invention relates to a vehicle, in particular, to devices for detecting the locking of wheelsets. The aim of the invention is to increase reliability. The device for detecting wheel pair locking contains, according to the number of wheel pairs, rotational speed sensors 1, drivers 2, keys 3 and counters 4, the outputs of which are connected to the inputs of the adder 5 and the coincidence circuit 6, the output of which is connected to the inputs of the coincidence unit 8 and one of the control inputs decoder 1 connected by another input to the output of counter 11 connected by input to output of switch 10 connected by one of the inputs to output of quartz oscillator 9 pulses, and the output of controlled decoder 12 is connected to the output of the circuit from successively in block 13 letters, a decoder 14 and a digital indicator 15. 1 Il.

Description

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This invention relates to a vehicle, in particular, to devices for detecting the locking of wheelsets.

The aim of the invention is to increase reliability.

The drawing shows a block diagram of a device for detecting wheel pair locking.

The device contains, according to the number of wheel pairs, sensors 1 of rotational speed of wheel pairs connected by outputs to inputs of drivers 2, outputs of which are connected to one of the inputs of keys 3 connected by outputs to inputs of counters 4, outputs of which are connected to inputs of adder 5, and outputs b - with the inputs of the matching circuit 6, to the output of which and the output of the adder are connected the inputs of the control unit 7, the reset unit 8 connected to the output of the output of the matching circuit 6, a quartz oscillator 9 pulses, to the output of which one of the inputs of the switch 10 is connected The output of the output of the counter 11, to the output of which and the output of the matching circuit 6, are connected the inputs of the controlled decoder 12, the output of which is connected to the circuit output from the memory unit 13, the decoder 14 and the digital indicator L5 connected in series, and block 8 reset connected to the other inputs of the keys 3 and 10.

The device works as follows.

In the absence of bobbing, the frequencies of the signals of sensors 1 are the same. The imaging unit 2 outputs pulses arriving through the keys 3 into the counters 4. At the same time, the pulses from the quartz oscillator 9 pulses through the key 10 enter the counter 11. In this case, since the frequencies from the sensors 1 are the same and the capacities of the counters 4 are equal, the counters 4 are filled simultaneously and Signals appear at outputs b. The coincidence circuit 6 is turned on, which closes the key 10 and at the same time opens the controllable decoder 12, transferring information in reverse code from counter 11 to memory block 13. Next, the reset unit 8 is turned on, setting the counters 4 to the initial state. The information recorded in the memory unit 13, converted by the decoder 14 into a decimal code, is highlighted by a digital indicator 15, showing the speed of movement of the locomotive.

When a wheel pair is boxed, the frequency of sensor 1 articulated with this pair increases. Counter 4, articulated

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with the boxing wheelset, is filled before exit a, before another counter 4 is filled before exit b. The adder 5 is turned on and, by its output, the signal turns on node 7

control signaling box In the meantime, the filling of the counters 4 associated with the non-blocking wheel pair and the counter 11 connected with the quartz oscillator 9 pulses continues. After counter 4, articulated with a non-boxed wheel pair, is filled before exit b9, coincidence circuit 6 is turned on and closes keys 3 and 10 and simultaneously opens a controllable decoder 12, transferring information in the reverse code from counter i to

memory block 13. After this, the reset unit 8 is turned on, setting the counter to the initial state. The information recorded in the memory block 13, converted by the decoder 14 into a decimal code, is highlighted by a digital indicator 15, showing the speed of the locomotive, since the time taken to fill the counter 11 from the crystal oscillator 9 has not changed and is still determined by the frequency of rotation of the wheel pair preserving the clutch.

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Claims (1)

Invention Formula Device for detecting wheel pair locking, containing, according to the number of wheel pairs, wheel speed sensors 0 pairs connected by outputs to the inputs of drivers, the outputs of which are connected to one of the inputs of one of the keys connected to the outputs of the inputs of one of the counters, one of the outputs of which are connected to the inputs of the adder, and the other with the inputs 5 of the coincidence circuit, the output of which and the output of the adder are connected to the inputs of the control unit, and a reset unit connected to the output of the coincidence circuit, characterized in that, in order to increase reliability, Q it is equipped with a quartz pulse generator controlled by a decoder, connected in series by a memory unit with a decoder and a digital indicator, and an additional key and counter, to the output of which and the output of the coincident 5 are connected the inputs of a controlled decoder connected to the output of the memory unit, moreover the additional key inputs are connected to the outputs of a quartz pulse generator, a reset unit, and a matching circuit, respectively, and 0 with the output connected to the input of an additional counter.