RU2309075C1 - Method of and system to control operation of device for application of lubricant onto rails - Google Patents

Abstract

FIELD: railway transport; auxiliary railway equipment.

SUBSTANCE: invention relates to control of application of lubricant onto rails. According to proposed method, lubricant applicator is fitted on movable terrain. Terrain is equipped, respectively, with radio beacon installed at beginning and sending radio signals and radio direction finder installed at end, with electronic control unit to which speed meter is connected. Radio direction finder detects angular deflection of radio signal to the left or right from longitudinal axis of track gauge depending on curvature of track section. Order is sent to apply lubricant to rails to left-hand or right-hand lubricator through electronic control unit, and angle α between vectors of speed at beginning and end of train at each moment is measured by means of radio signal and radius R of track curvature is calculated by electronic unit by formula

where L is distance between radio beacon and radio direction finder chosen with required lead of beginning of lubrication before getting of lubricator on rail in curvilinear section of track, and order is sent by electronic unit to lubricator to start lubrication and determine amount of lubricant to be applied depending on radius of curvature of rail track and speed of train. In proposed rail lubricator control system, train is furnished with radio beacon and radio direction finder at beginning and end of running, respectively to measure angle α of deflection of radio signal between vectors of speeds at beginning and end of train. Control system provides calculation of radius R of curvature of rail track in electronic control unit by formula

and delivers order for lubricating the rails and metering out amount of lubricant depending of radius of curvature of rail track and speed of train.

EFFECT: improved efficiency of lubrication.

3 cl, 2 dwg

Description

The invention relates to auxiliary railway equipment, namely to the management of the lubrication of the rails.

A known method of controlling a device for applying lubricant to rails, which consists in supplying lubricant to the friction zone of wheels and rails when the body of the locomotive receives an angular roll at the entrance to the curved track, while the roll must reach significant values (SU, A.C. No. 1652154 A1, class B61K 3/02, publ. 1989).

The disadvantage of this method is that the lubrication is carried out without taking into account the radius of curvature of the track rails and not throughout its curve. The disadvantage of this method is also that if the roll is negligible, then there will be no lubrication.

A known method of controlling a device for applying lubricant to rails, which consists in installing a device for applying lubricant to rails at the end of a movable unit (locomotive) in the direction of travel, the application of lubricant is carried out depending on the signal of the control system, which contains a device for acquiring an image of a section of the rail located in front of a moving vehicle, and an image processing device. If the deviation of the rail from the set direction exceeds the limit value, the control system generates a signal for applying lubricant. (DE, Application No. 19858517A1, CL B61K 3/02, 1998)

The disadvantage of this method is that in conditions of limited visibility, the lubrication of the rails will not be guaranteed.

A known method of controlling the lubrication of a device for lubrication of railway rails, adopted as a prototype mounted on a rolling stock, namely that the lubrication is carried out depending on the radio signal received from the radio transmitting device (beacon) installed on the American satellite navigation system "GPS" and received by the receiver (direction finder) signals mounted on rolling stock.

Using the satellite system’s radio signal, the position coordinates of the corresponding rolling stock unit are established, the position coordinates of the rolling stock unit are compared with the position data contained in the memory, and if the coordinates coincide, they give the analyzer (electronic unit) a command to start and end the rail lubrication (DE, patent, No. 19632958C1, CL B61K 3/02, 1998).

The disadvantages of this method of control are:

- a system of radio transmitting devices has not been implemented on the territory of Russia, the signals of which can be used to determine the coordinates of a unit of rolling stock on a certain section of a railway track;

- to ensure its operability, accurate electronic navigation maps of specific sections of the railway are needed;

- skipped points are possible at significant speeds, because the time for updating information in satellite receivers cannot be less than 1 s. At a speed of 100 km / h for 1 s, the receiver moves 27.8 m, which corresponds to a significant angular displacement (in a section with a radius of curvature of 300 m, the angular displacement is about 10 °). With a small alarm radius (less than 40 m), the probability of skipping the alarm point increases, and with a large alarm radius, the accuracy of the beginning and end of the rail lubrication process is significantly reduced;

- to establish the location of the corresponding unit of rolling stock, the use of signals from the satellite navigation system "GPS" is proposed. Global Positioning System (GPS) - American satellite navigation system. Its equipment is controlled by the American side and can be turned off at any time. The GLONASS domestic global navigation system has not yet been fully deployed over Russian territory.

A known lubrication supply system (control) in a device for lubrication of railway rails, a lubrication device mounted on the frame of the vehicle trolley and contains a rail lubricator, a tachogenerator mounted on the axle box, and an electronic unit that controls the operation of the rail lubricator. In addition, the control system includes hydraulic control valves and a dispenser with a lubricant source and a control unit connected to the vehicle’s speed meter (speed sensor), and the dispenser is made in the form of two pneumatic hydraulic cylinders controlled by hydraulic throttles connected to an electronic control unit and a pneumatic distributor. The control signal to the rail lubricator (a device for applying grease to the rails) is supplied after the non-contact measuring means register the entry of the cart with the rail lubricator into the curved section of the rail track: when the vehicle enters the curved section of the track, one of the contactless sensors triggering the directional valves triggers rail lubricator to the left or right position. Depending on the vehicle’s speed, the required number of rail lubricator hydraulic chokes opens and grease enters the contact area of the wheel flange with the rail (RU, patent No. 2085422, class B61K 3/02, 1997).

A disadvantage of the known control system is that it does not provide a certain dosage of lubricant depending on the radius of curvature of the rail track and does not apply lubricant throughout the entire curve.

A known lubrication control system in a device for lubricating railway rails, adopted as a prototype, which contains a control device that includes a radio transmitting device (beacon), a receiver (radio direction finder) of radio signals by which the coordinates of the position of the rolling stock are communicated, and an analyzer (electronic block), which compares the coordinates of the position of the unit of rolling stock with the positional data contained in the memory, and when the coordinates coincide, sends a signal about the beginning and the end of the lubrication process. As signal sources, it is possible to use radio transmitting devices arranged appropriately, by the radio signal of which it is possible to establish the position coordinates of the corresponding unit of rolling stock. It is also possible to use the signals of the satellite navigation system "GPS" to establish the location of the corresponding unit of rolling stock (DE, patent, No. 19632958 C1, CL B61K 3/02, 1998).

A disadvantage of the known control system are:

- a system of radio transmitting devices has not been implemented on the territory of Russia, the signals of which can be used to determine the coordinates of a unit of rolling stock on a certain section of a railway track;

- to ensure its operability, accurate electronic navigation maps of specific sections of the railway are needed;

- skipped points are possible at significant speeds, because the time for updating information in satellite receivers cannot be less than 1 s. At a speed of 100 km / h for 1 s, the receiver moves 27.8 m, which corresponds to a significant angular displacement (in a section with a radius of curvature of 300 m, the angular displacement is about 10 °). With a small alarm radius (less than 40 m), the probability of skipping the alarm point increases, and with a large alarm radius, the accuracy of the beginning and end of the rail lubrication process is significantly reduced;

- to establish the location of the corresponding unit of rolling stock, the use of signals from the satellite navigation system "GPS" is proposed. Global Positioning System (GPS) - American satellite navigation system. Its equipment is controlled by the American side and can be turned off at any time. The GLONASS domestic global navigation system is not yet fully deployed over the territory of Russia.

The technical result of the invention is to improve the method and control system of a device for applying lubricant to rails to increase the efficiency of rail lubrication by automatically dispensing lubricant on railway rails depending on the radius of curvature of the rail track and the speed of rolling stock and automatic lubrication along the entire curve of the rail track.

The specified technical result is achieved by the fact that in the method of controlling the device for applying grease to the rails, which consists in installing a device for applying grease to the rails on a rolling stock, the rails are lubricated in a curved section of the track depending on the radio signal from the beacon and the receiving receiver of the direction finder , equip the rolling stock at the beginning and at the end in the direction of its movement, respectively, with a beacon emitting a radio signal and a direction finder with an electronic control unit I, to which the speed sensor is connected, is fixed with a direction finder, depending on the shape of the rail track curvature of the track section, the angular deviation of the radio signal to the left or right of the longitudinal axis of the rail track, issue a command to operate the left or right lubrication device on the rails through the electronic control unit and measure plot of the rail track at every instant using a radio signal, the angle α between the velocity vectors of the beginning and end of the rolling stock, calculate the radius R of the curvature R in the electronic control unit sovoy tracks from the relationship:

where L is the distance between the beacon and the direction finder, selected with the necessary pre-emption of the start of lubrication before the entry of the device for applying lubricant to the rails in a curved section of the track,

and give, using the electronic control unit, a command to the device for applying lubricant to the rails to lubricate the rail and the lubricant dosage depending on the radius of curvature of the rail track and the speed of the rolling stock, and the fact that in the control system of the device for applying lubricant to the rails containing a beacon for radiation of radio signals, a direction finder for receiving radio signals with an electronic control unit and a speed sensor of the rolling stock, the rolling stock is equipped at the beginning and end in the direction of its movement, respectively beacon and direction finder for measuring the angle α of the deviation of the radio signal between the velocity vectors of the beginning and end of the rolling stock, calculating in the electronic control unit the radius R of the curvature of the rail track from the relation

,

,

where L is the distance between the beacon and the direction finder, with the necessary lead,

and for sending, using the electronic control unit, commands to the device for applying lubricant to the rails for lubricating the rail and dosing the lubricant depending on the radius of curvature of the rail track and the speed of the rolling stock.

Figure 1 presents a structural diagram of a control system with which the inventive method of controlling a device for applying lubricant to rails is implemented, figure 2 shows the vectors of the change in the angular direction of the speeds of the beginning and end of the rolling stock.

и конца

подвижного состава 5, вычисления в электронном блоке управления 3 радиуса R кривизны рельсовой колеи 9 из соотношенияThe control system for implementing the proposed method includes (Fig. 1): a beacon (radio transmitter) 1 for emitting radio signals, a direction finder (receiver) of radio signals 2 with an electronic control unit 3 and a speed sensor 4 of the rolling stock 5, made in the form of a wheel speed sensor, device 6 for applying grease to the rails. Beacon 1 and direction finder 2 are mounted on rolling stock 5 at the beginning and end, respectively, while beacon 1 is installed closer to the head of rolling stock 5 on a locomotive or car 7, and direction finder 2 is closer to its tail of rolling stock 5, for example, on a car 8 moving along a rail track 9 of a track with a device 6 for applying grease to the rails for measuring the angle α (Figs. 1, 2) of the radio signal deviation between the start velocity vectors

and end

rolling stock 5, calculations in the electronic control unit 3 of radius R of curvature of the rail gauge 9 from the relation

where L is the distance between the beacon 1 and the direction finder 2 with the necessary lead (L.> 50 m) of the start of lubrication before the entry of the device 6 for applying lubricant to the rails in a curved section of the track,

and applying, using the electronic control unit 3, commands to the device 6 for applying grease to the rails to lubricate the rail and the lubricant dosage, depending on the radius R of the curvature of the track rails and the speed of the rolling stock 5.

The inventive method is implemented as follows.

начала - локомотива (вагона) 7 подвижного состава 5 и

скорости конца подвижного состава - вагона 8, вычисляют в электронном блоке управления 3 радиус R кривизны рельсовой колеи 9 из соотношенияInstall a device 6 for lubricating the rails at the end of the tail of the rolling stock 5 on car 8, equip the rolling stock 5 in the direction of movement at the beginning closer to the head on the locomotive or car 7 with a beacon 1 and at the end on car 8 with a direction finder 2 with an electronic control unit 3 to which connect the sensor 4 speed of the rolling stock. Beacon 1 emits a radio signal. Accept and fix with the direction finder 2, depending on the curvature of the rail track 9, the angular deviation α of the radio signal to the left or right of the longitudinal axis O-O of the rail track 9. On a straight section of the rail track 9, the radiation of the beacon 1 is received by the direction finder 2 as arriving without deviation from the O- axis About the rail track 9, and the direction finder 2 does not give a signal to the electronic control unit 3 that the rolling stock 5 is on the curved section of the rail track 9. When entering the curved section of the rail track 9, the beacon 1 tklonyaetsya in the direction of rotation of the track 9 relative to the rectilinear motion. An angular change in the direction of the radio signal even before the entrance of the car 8 with the device 6 for applying grease to the rails in the curved section of the rail track 9 is fixed with a direction finder 2, which issues an instruction to the left or right device 6 for applying grease to the rails through the electronic control unit 3. The angle α between the velocity vectors is measured on a portion of the rail track 9 at each instant using a radio signal

beginning - locomotive (car) 7 rolling stock 5 and

the speed of the end of the rolling stock - car 8, calculate in the electronic control unit 3 the radius R of curvature of the rail gauge 9 from the ratio

where L is the distance between the beacon 1 and the direction finder 2, selected with the necessary pre-emptive start of lubrication before the device 6 for applying lubricant to the rails enters the curved section of the track (L> 50 m).

Using the electronic control unit 3, a command is sent to the device 6 for applying grease to the rails to lubricate the rail and the lubricant dosage depending on the radius R of curvature of the rail gauge 9 and the speed of the rolling stock 5 determined by the speed sensor 4.

Claims (2)

1. The method of controlling the device for applying lubricant to the rails, which consists in installing a device for applying lubricant to the rails on a rolling stock, lubricating the rails in a curved section of the track depending on the radio signal from the beacon and the receiving receiver of the direction finder, characterized in that they are equipped rolling stock at the beginning and at the end in the direction of its movement, respectively, by the aforementioned radio beacon emitting a radio signal, and a direction finder with an electronic control unit to which the speed sensor is fixed, it is fixed with a direction finder, depending on the shape of the rail track curvature of the track section, the angular deviation of the radio signal to the left or right of the longitudinal axis of the rail track, issue a command through the electronic control unit to operate the left or right device for applying lubricant to the rails and measure on the rail track section in every moment, using a radio signal, the angle α between the velocity vectors of the beginning and end of the rolling stock, calculate the radius R of curvature of the rail track in the electronic control unit from wearing

, where L is the distance between the beacon and the direction finder, selected with the necessary pre-emption of the start of lubrication before the entry of the device for applying lubricant to the rails in a curved section of the track, and submit using the electronic control unit a command to the device for applying lubricant to the rails to lubricate the rail and the lubricant dosage depending on the radius of curvature of the rail track and the speed of the rolling stock. 2. The control system of the device for applying lubrication to the rails, containing a beacon for emitting radio signals, a direction finder for receiving radio signals with an electronic control unit and a speed sensor of the rolling stock, characterized in that the rolling stock is equipped at the beginning and end in the direction of travel with the said beacon and direction finder for measuring the angle α of the deviation of the radio signal between the velocity vectors of the beginning and end of the rolling stock, calculating in the electronic control unit the radius R cree izny the track from the relation

, where L is the distance between the beacon and the direction finder, selected with the necessary pre-emption of the start of lubrication before the entry of the device for applying lubricant to the rails in a curved section of the track, and giving, using the electronic control unit, commands to the device for applying lubricant to the rails for lubricating the rail and dosing the lubricant depending on the radius of curvature of the rail track and the speed of the rolling stock.

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