RU74881U1 - ON-BOARD SYSTEM OF TEMPERATURE CONTROL OF THE BOXES OF PASSENGER CAR (LOCOMOTIVE) - Google Patents

Abstract

1. On-board temperature control system for axlebox nodes of a passenger car (locomotive), including temperature sensors installed in each axle box, measuring their temperature, made with the possibility of their own identification by the position on the car (locomotive), and using communication lines connected to the input of the analysis unit made with the possibility of forming an array of data containing data on the temperature of all axlebox nodes, data on the outside temperature, marks on the achievement of critical values by axle nodes overheating, the output of which is connected to a terminal module, including a control unit and an indication unit connected in series, the control unit being configured to generate and transmit to the analysis unit a control signal for starting the polling of temperature sensors, replenishing the data array with current values of time and calendar date, and transmitting it to display unit, and if at least one axle box reaches critical overheating or a malfunction of at least one temperature sensor transfers the entire data array to a monitor that is connected to the output of the control unit, and the display unit is configured to display information about the current temperature of the axle boxes, as well as to issue warning signals of critical overheating and malfunction of temperature sensors, characterized in that thermal sensors are connected to the input of the analysis unit, located on the external parts of the carriage of the wagon (locomotive) measuring the temperature of the outside air on each side of the wagon (locomotive), made with the possibility of identification by purpose and

Description

The proposed utility model relates to the field of monitoring the devices of the chassis of a passenger car (locomotive): axle boxes, bearing assemblies of power units and can be used as a system installed in a passenger car (locomotive), which constantly monitors the state of monitored devices, predicts the occurrence of malfunctions, and alarms about critical conditions, as well as saving measurement and diagnostic results.

A well-known control system for heating the axle boxes of the SKNB passenger car, see V.P. Egorov “Design and operation of passenger cars”, a training manual, 1994, designed for continuous monitoring of axle box heating, including a set of temperature sensors mounted on axle boxes connected in series with each other , and the executive unit. A temperature sensor made on the basis of a fusible alloy or semiconductors (posistors) is in contact with the axle box body, and when the melting point of the alloy or the threshold temperature of the posistor is exceeded

respectively, a circuit break or a jump in resistance occurs, the executive unit installed in the compartment of the conductor generates a signal that includes sound and light signaling devices. SKNB does not allow to adjust the critical temperature setting for various controlled devices and conditions within the required limits, fusible temperature sensors fail when triggered, heating of axleboxes is not monitored and localization of heated axlebox is not ensured. The last disadvantage is eliminated in the patent of Russia No. 2093398, while maintaining the rest.

In the Russian patent for utility model No. 53253 dated July 21, 2005, "An electric train diagnostic system and an assembly for installing a sensor of this system," a device is proposed comprising a sensor sensing an operating parameter of a monitored device, a measuring device, an interface device, an indication device, and a storage device. Moreover, each controlled device is equipped with a sensor that is connected to a measuring device located on each carriage of each car, configured to compare the operating parameter received from the sensor with the threshold value of this parameter and to provide a signal to the display device when the operating parameter exceeds the threshold value, while information about the monitored device comes to the display device, the storage device stores information when the value exceeds the operating parameter th threshold of its value.

The disadvantages of this system:

- limited diagnostic algorithm only analysis of absolute heating;

- lack of constant monitoring;

- lack of operational access to stored information;

- lack of system self-control.

As the prototype of the utility model, “On-board temperature control system of the locomotive’s bearing assemblies was selected. (BSKT) ”, see the product catalog of the Experimental Electronics Factory, the TRANSPORT Center, which includes a set of temperature sensors (thermal converters) according to the number of axle boxes of the car interconnected

in parallel, measuring the temperature of the axleboxes and made possible by their own identification by the position on the car and connected to the input of the analysis unit (temperature module), configured to interrogate the temperature sensors for their presence and identification, perform cyclic communication with each temperature sensor to obtain information (reading data) about the temperature, calculating the value of the overheating of each axle box assembly relative to the outside air and comparing it with the critical value, respectively there is a malfunction of the axle box assembly, while the output of the analysis unit is connected to a terminal module including a series-connected control unit and an indication unit, configured to generate and issue warning sound and light signals in case of overheating of a critical value, displaying the location indication unit on the display overheated temperature sensor, as well as registration of critical situations in the storage device connected to the output of the control unit.

The utility model ensures the achievement of the following technical results:

1. improving the accuracy of determining the value of overheating;

2. expanding the diagnostic capabilities of the system;

3. improving system performance;

4. improving system performance;

5. improving the efficiency of post-service maintenance of axlebox nodes;

6. saving system memory;

7. improving the efficiency of access to stored information.

Claims (7)

1. On-board temperature control system for axlebox nodes of a passenger car (locomotive), including temperature sensors installed in each axle box, measuring their temperature, made with the possibility of their own identification by the position on the car (locomotive), and using communication lines connected to the input of the analysis unit made with the possibility of forming an array of data containing data on the temperature of all axlebox nodes, data on the outside temperature, marks on the achievement of critical values by axle nodes overheating, the output of which is connected to a terminal module, including a control unit and an indication unit connected in series, the control unit being configured to generate and transmit to the analysis unit a control signal for starting the polling of temperature sensors, replenishing the data array with current values of time and calendar date, and transmitting it to display unit, and if at least one axle box reaches critical overheating or a malfunction of at least one temperature sensor transfers the entire data array to a monitor that is connected to the output of the control unit, and the display unit is configured to display information about the current temperature of the axle boxes, as well as to issue warning signals of critical overheating and malfunction of temperature sensors, characterized in that thermal sensors are connected to the input of the analysis unit, located on the external parts of the carriage of the wagon (locomotive) measuring the temperature of the outside air on each side of the wagon (locomotive), made with the possibility of identification by purpose and July on the car (locomotive), and the temperature sensors located in the axle boxes are made with the additional possibility of identification for the intended purpose, while the analysis unit is configured to calculate the overheating of the axle boxes relative to the outside air for each side of the car (locomotive). 2. The on-board temperature control system for axlebox nodes of a passenger carriage (locomotive) according to claim 1, characterized in that the analysis unit is configured to multi-stage compare the calculated values of overheating with the values of dangerous levels of overheating, corresponding to the emergence and development of a trend for a critical situation for each boxen node, and the display unit is configured to provide additional signaling about the achievement of dangerous levels of overheating. 3. The on-board temperature control system for axlebox assemblies of a passenger carriage (locomotive) according to claim 1 or 2, characterized in that the indicator unit includes a light indicator module configured to signal the status of each temperature sensor installed on the axlebox, and the control unit with the ability to generate warning light signals of overheating of each temperature sensor. 4. The on-board temperature control system of the axle boxes of a passenger car (locomotive) according to claim 1, characterized in that the analysis unit is configured to switch by an external (control) signal of the information input from the outputs of the temperature sensors to the output of the simulation unit generating signals for exceeding critical overheating by each temperature sensor, as well as simulating malfunction of temperature sensors and their connection lines. 5. The on-board temperature control system of the axle boxes of a passenger car (locomotive) according to claim 1 or 2, characterized in that the control unit and the storage device are configured to record the current temperature state of the system in the storage device with a set time interval. 6. The on-board temperature control system for axlebox nodes of a passenger carriage (locomotive) according to claim 5, characterized in that the control unit is configured to record a temperature state of the system with a time interval adjustable depending on the current value of overheating of axlebox nodes. 7. The on-board temperature control system of the axle boxes of a passenger carriage (locomotive) according to claim 5, characterized in that the control unit is configured to transfer the system by an external signal from the current temperature control mode to a reading mode from a random recording device with its playback on the display and signaling devices of the display unit, while the control unit is equipped with control inputs of external interrupts.