CZ19055U1 - Device for continuous detection of wheel set driving profile state - Google Patents

Description

Technical field

The invention relates to a device for continuously determining the driving profile of a wheel set.

Background Art

During normal operation of the rolling stock, the running profile of the wheelset is worn, both on the track and on the flange. The wear rate is determined by a template gauge. Similarly, a laser meter is used, one part sends a laser beam to a wheel profile whose response is simultaneously sensed, and the other part compares the detected wear to the acceptable level of wear. Both measurement methods depend on the operator's attitude to the driving profile of the wheel, which is usually ensured by the worker's access to the mounting channel in the track. It is necessary to bring the rail vehicle to a standstill in both measurements with the application of a laser gauge. This prerequisite is characterized by low labor productivity and a certain level of security risk.

The above-mentioned drawbacks are eliminated by the automatic wear function measurement system of the rolling stock wheel described in the author's certificate CS 220643. Here the sensor elements are located on the rail. The lateral position of the wheel is defined by a pair of rails on which the position sensors of the measured points are located on the running profile of the wheel set. The measured values are evaluated by the computer. The advantage of such a device is, in particular, that the measurement on individual wheelsets is carried out continuously during the passage of the rail vehicle along the rail provided with such a device. The increased productivity of such activity and the contribution to occupational safety is clearly apparent. However, such a device has the common disadvantage of measuring a flat or laser gauge. The wheel profile of the wheelset is detected in all of these devices in only one location and the condition thus determined is taken as a reference for the entire wheel circumference. Unevenness of wear of the driving profile around the circumference of the wheel cannot be determined.

The essence of the technical solution

The solved device determines the running profile of the wheelset of the wheelset. At least one non-contact wheel drive sensor is disposed on the carrier coupled to the wheelset bearing body. The proximity sensor output is connected via the evaluation unit to display the results. The proximity sensor is a sensor that detects the signal response it sends. It can therefore be an inductive, ultrasonic or laser sensor. The main advantage of such a device is the possibility of continuous monitoring of the bicycle's driving profile. Thus, it finds out the unequal wear on the whole circumference, ie the ovality, the runout of the wheel and also the deformation, for example, caused by the local abrasion of the driving profile of the driving profile by the rail head when the vehicle brake is blocked.

List of drawings in the drawing

An overall view, that is to say, a schematic illustration of a device for continuously identifying the driving profile of a wheel with three non-contact sensors, is shown in the accompanying drawing in FIGS. 1 and 2.

Three contactless sensors and a driving profile P of K are located on the carrier 2 connected to the wheelset bearing body T. One proximity sensor f is directed to the driving surface Pf and the other two proximity sensors 1 are focused on the flanks flanks P2 of the wheel. The sensor 1 is connected via the evaluation unit 3 to the display 4 of the results.

Upon switching on the device for continuous detection of the driving profile of the P wheel K, the detected response of the signals of the individual proximity sensors 1 is continuously evaluated by the evaluation unit 3, into which

- 1 c /. iyv33 ui are fed, processed, and the resulting state is displayed on imaging 4 results. The resulting state can be displayed either as a set of detected values or as a result of comparison with the desired limit state. At the same time, the necessary professional intervention is diagnosed, such as, for example, the processing of the P-wheel drive profile or the replacement of the wheel set. The output signal from this device may, in a critical situation, instruct a vehicle to slow down to a safe limit.

Claims (4)

PROTECTION REQUIREMENTS An apparatus for continuously detecting the wheel profile of a wheel set, characterized in that at least one proximity sensor (1) of the wheel profile (P) of the wheel (K) is mounted on a carrier (2) connected to the wheel housing (T). the output of which is connected to the result display (4) via an evaluation unit (3). Device according to claim 1, comprising an inductive sensor. The device according to claim 1, comprising an ultrasonic sensor The device according to claim 1, comprising a laser sensor. characterized s e tí m characterized s e t í ni characterized s e tí m