SK592019A3 - System for monitoring the operating temperature of axle bearings of railway wheelsets - Google Patents

Abstract

System for monitoring the operating temperature of axle bearings of railway wheelsets contains temperature sensors (3) of the operating temperature of the axle bearings of the wagon (1) with railway wheelset (2), which are wirelessly connected to the receiver (4), which is wirelessly connected to the on-board computer (6) with a warning light and sound signal on the instrument panel (7) of the towing vehicle (5).

Description

Technical field

The invention relates to a new system for the continuous determination of the reliability of the operation of axle bearings of railway wheelsets. The invention falls into the field of engineering, transport.

Prior art

The continuous increase in train operating speeds means that the failure of an axle box can lead to serious derailments, leading to loss of life, material damage and serious disruption to the rail network, damage to the line and loss of confidence in the railways by the general public. It is known from the available information that railway wheelsets consist of skins, axles and axle bearings on which faults can occur.

At present, it is true that the fault, which is discovered by the employees of the railway undertaking, must be reported immediately to the person controlling the transport to ŽSR (dispatcher, dispatcher, ..). This also applies to bearing damage, [https://www.google.com/ search? Q = https% 3A% 2F% 2Fwww.zsr.sk +% E2% 80% BA + files +% E2% 80% BA + carriers +% E2% 80% BA + podmpouzivaniazelsietei2018-2 & ie = utf-8 & oe = utf-8 & client = firefox-b-ab] - pdf: RAILWAYS OF THE SLOVAK REPUBLIC TERMS AND CONDITIONS OF USE OF THE RAIL NETWORK for GVD 2017/2018

Due to the demand for safe and high-speed rail transport, railway wheelsets with increasing loads require thorough and reliable inspection and maintenance. Operation of railway double wheels rotating in axle bearings in demanding working conditions are exposed to material degradation by cyclic stress, which causes material fatigue. Gradual deterioration of the structural integrity of axle bearings increases the risk of their failure.

Bearing faults, if not detected in real time in time, can result in catastrophic failure.

The essence of the invention

The principle of the invention is aimed at timely and accurate monitoring of the operation and service life of the axle bearings of railway double wheels. The axle bearing temperature sensors are installed so that they touch the outer ring of the axle bearings. The axle bearing temperature data is transmitted wirelessly to a receiver located next to the track. The operating temperature of the axle bearing is read, recorded and evaluated in the receiver. Each temperature sensor has its own unique serial number, thanks to which the receiver recognizes from which axle bearing of the railway double wheels the data comes. The receiver of this data is designed to ignore data that may come from other trainsets passing into the eye.

When the receiver detects an increase in the reference operating temperature (usually 20-25%) in one or more axle bearings, it sends the recorded change and information on the increase in the reference operating temperature in real time to the on-board computer on the towing vehicle dashboard.

The driver is informed of such a change in the value by a red light with a number which is a unique serial number of each axle bearing and also by an audible warning signal located on the instrument panel. Regardless of the circumstances, if the control indicator illuminates, the train must be stopped at a predetermined location and the condition of the axle bearing must also be checked visually.

The system for monitoring the operating temperature of the axle bearings of railway double wheels does not require maintenance and at regular service intervals (10 years - date of battery replacement in the temperature sensor) the system must be checked. If the battery voltage in the temperature sensor drops, the entire sensor must be replaced. Since the system for monitoring the operating temperature of the railway double axle bearings recognizes each wheel according to the unique serial number of the temperature sensor, it is necessary to update the serial number of the temperature sensor in case of replacement of the entire axle bearings of the railway double seals.

Direct monitoring of the operating temperature of the axle bearings by temperature sensors can thus prevent catastrophic failures on the railways.

Overview of figures in the drawings

In the attached FIG. 1 is a block diagram of a system for monitoring the operating temperature of axle bearing axle bearings. The diagram contains the following components and brands: L Wagon

2. Railway wheelsets

S K 59-2019 Α3

3. Temperature sensors

4. Receiver

5. Towing locomotive

6. Board computer

7. Dashboard

I. Information sent

Examples of embodiments of the invention

The system for monitoring the operating temperature of the axle bearings of railway wheelsets consists of a wagon 1 on which railway wheelsets 2 are mounted, in which temperature sensors 3 are installed. During travel, temperature sensors 3 sense the operating temperatures of axle bearings and transmit information wirelessly in real time to receiver 4. The operating temperature of the axle bearing is read, recorded and evaluated in the receiver 4. The reference operating temperature for the axle bearing must be set in receiver 4.

If the receiver 4 detects an increase in the operating temperature in the axle bearings, it records the change and sends information about the increase in the reference operating temperature wirelessly in real time to the on-board computer 6 of the towing locomotive 5. The on-board computer 6 switches on the warning light and sound signaling on the instrument panel 7.

The start of the measurement of the operating temperature by the temperature sensors 3 of the axle bearings of the railway wheelsets 2 and the sending of data to the respective traction locomotive 5 is realized so that when the wagon 1 passes between the receivers 4 the information is paired with the on-board computer of the traction locomotive 5.

Industrial applicability

The invention can be used on all axle bearings of railway wheelsets used in passenger and freight railway transport, tram, but also other rail vehicles. The use of the present invention makes it possible to increase the operational reliability and the residual life of railway wheelsets.

The system for monitoring the operating temperature of axle bearings of railway wheelsets was prepared thanks to the support of the Operational Program Research and Innovation for the project: Research of advanced methods of intelligent information processing, ITMS code: NFP313010T570 co-financed from the found European regional development. The utility model application is sponsored by the project 015STU-4/2018 and the project 013TUKE-4/2019 ..Modern educational tools and methods of shaping creativity and increasing practical skills and habits for graduates of technical universities ”.

Claims (1)

PATENT CLAIMS A system for monitoring the operating temperature of the axle bearings of railway wheelsets, characterized in that the temperature sensors (3) of the operating temperature of the axle bearings of a wagon (1) with two wheelsets (2) are wirelessly connected to a receiver (4) which is wirelessly connected. on-board computer (6) with warning light and sound signaling on the instrument panel (7) of the towing locomotive (5).