SU823203A1 - Device for measuring the path rolled by railway vehicle wheels - Google Patents

Description

(54) DEVICE FOR MEASURING ROLLS FOR ROLLS OF RAILWAY VEHICLES

I

The invention relates to railway transport and can be used in systems for monitoring the condition of vehicle wheels.

A device for measuring the rental of wheels in motion, comprising a measuring rail, photo sensors, an optical system with an illuminator, and a recording unit connected to the photo sensors 1, is known.

However, this device has insufficient reliability due to the instability of the transparency of the medium.

It is also known a device for measuring the rolling stock of wheels of railway vehicles, comprising a rail for supporting a wheel, interacting with the flange of the latter, a converter of the amount of rolled into an electrical signal and a recording unit 2.

However, this device does not allow obtaining the required reliability and accuracy of measuring the amount of rolled metal.

The purpose of the invention is to increase the reliability and accuracy of measurement.

The goal is achieved by the fact that the device is equipped with a measurement start sensor, a pulse generator, a large-scale converter and a switch, the first input of which is connected to the transmitter output, the second to the sensor start input, and the third switch input is connected to the output of the pulse generator, switch output via a scale converter connected to the input of the recording unit.

FIG. 1 is a schematic diagram of the device; in fig. 2 is a diagram of the switch and a large-scale conversion;

The device contains a converter 1 for rolling into an electrical signal connected to sensor 2, which through switch 3 and scale converter 4 is connected to recording unit 5. Measurement sensor 6 is connected via switch 3 to pulse generator 7 and to scale converter 4, as well to the measuring rail 8, on which the measured wheel 9 is mounted.

20

The Converter value of the rental in the electrical signal (Fig. 2) through the key 10, the key 11, the divider 12 and the adder 13 is connected to the recording unit.

The device works as follows.

A measuring wheel 9 is mounted on the rail 8. When it is rolled along the rail in the measuring position, the normally open switch 10 of the switch 3 (Fig. 2) n the signal from the converter 1 rolled into an electrical signal set up according to the reference the wheel enters key 11, which closes only at the moment the pulse arrives from generator 7. A pulse from the generator arrives simultaneously at key 11 and at the input of divider 12 (divider 12 is an integral part of scale converter 4). With the arrival of the pulse, the key 11 closes and the signal from the converter 1 through the closed switches 10 and 11 goes to the adder 13. At the same time, the adder 13 receives a signal from the divider 12, caused by the pulse from the generator 7. With each pulse arriving at the key 11, the adder 13, a signal is output corresponding to the amount of wheel rolling measured at the time of the pulse. At the same time, using the same pulse, the magnitude of the signal accumulated in the adder is divided by the number of signals passing through the key 11.

Thus, iia is a near-scale converter 4 n (L) signal, corresponding to the average value of the rental value measured at several points of the wheel. This eliminates the effect of random

errors (e.g., nicks) at the re | of the wheel to be measured for the measurement accuracy of the rolled stock and the measurement reliability is improved.

The proposed device provides reliability and high measurement accuracy.

Claims (2)

1. USSR author's certificate number 222446, cl. In 61 K 9/12, 1969. 2. USSR author's certificate in application number 2581877/11, cl. B 61 K 9/12, 1978 (prototype). but FIG. 2