Brake system sensor for railway tank car and railway tank car operation monitoring system

Abstract

The invention relates to a railway transportation system, and provides a brake system sensor for a railway tank car and a railway tank car operation monitoring system in order to solve the problem that the fusion level of an existing railway tank car system and a modern digital technology is low, the brake system sensor comprises a brake cylinder push rod displacement sensor, a brake cylinder pressure sensor, a main pipe pressure sensor and an air storage cylinder pressure sensor; the brake cylinder push rod displacement sensor is arranged between the brake cylinder and the brake cylinder push rod; the brake cylinder pressure sensor is arranged on a ventilation pipeline for connecting the brake pressure limiting valve and the brake cylinder; the main pipe pressure sensor is arranged on a flange joint of a braking main pipe of the railway tank car; the air storage cylinder pressure sensor is arranged on a ventilation pipeline between the air storage cylinder of the railway tank car and the connecting valve; the invention further provides a railway tank car operation monitoring system adopting the brake system sensor, operation data information of a railway tank car is monitored in real time, and a user can know the operation state of the railway tank car timely and conveniently.

Description

Technical Field

[0001] The invention relates to a railway transportation system, and in particular to a braking system sensor for a railway tank car and a railway tank car operation monitoring system. Background Art

[0002] At present, the digital technology of rail transit products mainly focuses on the development of intelligent equipment in multiple dimensions, including product monitoring, intelligent perception, multi-network integration and system intensive control, diagnosis and fault identification, intelligent services, operating environment monitoring and intelligent perception, so that rail transit products can achieve intelligent services, automated operations, and intelligent perception and diagnosis of key systems or components.

[0003] With the continuous development of electronic information technology, users have put forward new demands on the safety, reliability and convenience involved in the management, operation and maintenance of railway tank cars, such as tank car location query, medium loading display, and automated operation of accessories such as manholes. However, at present, the level of integration of railway tank cars with digital technologies such as automation, informatization and intelligence is relatively low, making it difficult to meet user needs.

[0004] In order to meet the requirements of modern development and better meet user needs, it is necessary to carry out research on smart railway tank car technology based on automation, informatization and intelligent technology, improve the digitalization level of railway tank car products, and further improve the operation safety, reliability and management convenience of railway tank cars. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing railway tank car system has a low level of integration with modern digital technology and is difficult to meet users' needs for railway tank car operation management, and to propose a braking system sensor for railway tank cars and a railway tank car operation monitoring system.

[0006] To achieve the above objectives, the technical solution proposed by the present invention is:

[0007] A brake system sensor for a railway tank car, which is special in that it includes a brake cylinder push rod displacement sensor, a brake cylinder pressure sensor, a main pipe pressure sensor and an air storage cylinder pressure sensor;

[0008] The brake cylinder push rod displacement sensor is arranged between the brake cylinder and the brake cylinder push rod, fixed on the tank body by a suspension bracket, and is used to monitor the displacement of the brake cylinder push rod during the brake release process;

[0009] The brake cylinder pressure sensor is arranged on the ventilation duct connecting the brake pressure limiting valve and the brake cylinder, and is used to monitor the pressure in the brake cylinder during the brake release process;

[0010] The main pipe pressure sensor is arranged on the flange connection of the brake main pipe of the railway tank car and connected to the brake main pipe, and is used to monitor the air pressure in the brake main pipe during the brake release process;

[0011] The air storage cylinder pressure sensor is arranged on the ventilation duct between the air storage cylinder of the railway tank car and the connecting valve, and is used to monitor the air pressure in the air storage cylinder during the brake release process.

[0012] The brake cylinder push rod displacement sensor is used to monitor the push rod displacement information during the brake release process, confirm the position of the push rod, and determine whether the brake cylinder is braking sufficiently and releasing completely.

[0013] The brake cylinder pressure sensor, main pipe pressure sensor and air storage cylinder pressure sensor respectively monitor the pressure of key components such as the brake cylinder, brake main pipe, air storage cylinder, etc. during the brake release process, and judge whether the brake system is working normally based on the pressure change trend.

[0014] Furthermore, the brake cylinder push rod displacement sensor is connected to the connecting end of the brake cylinder push rod via a connecting rod parallel to the brake cylinder push rod;

[0015] One end of the connecting rod is connected to the brake cylinder push rod displacement sensor, and the other end is provided with a pull rod fixing ring, and the pull rod fixing ring is connected to the floating end pin hole of the brake cylinder push rod.

[0016] Further, the brake cylinder pressure sensor is connected to the ventilation duct of the brake cylinder through a tee;

[0017] The main pipe pressure sensor is connected to the brake main pipe through a tee;

[0018] The air storage cylinder pressure sensor is connected to the ventilation duct of the connecting valve through a three-way connection.

[0019] At the same time, the present invention also proposes a railway tank car operation monitoring system, which is special in that it includes a power supply system, a vehicle-mounted gateway, a tank medium sensor, a steering sensor and a vehicle positioning system, as well as the above-mentioned brake system sensor for railway tank cars;

[0020] The power supply system is connected to the vehicle gateway through power supply wires and signal lines, and the vehicle gateway is connected to the tank medium sensor, the brake system sensor, the steering sensor and the vehicle positioning system through power supply wires and signal lines; the vehicle gateway is used to communicate with an external host computer;

[0021] The power supply system is used to provide power to the tank medium sensor, the brake system sensor, the steering sensor and the vehicle positioning system through the power supply wire via the vehicle gateway, and the vehicle gateway reads the power supply system's power and fault signal through the signal line;

[0022] The vehicle-mounted gateway is used to collect data information from the tank medium sensor, brake system sensor, steering sensor and vehicle positioning system through the signal line, and transmit it to the external host computer for data processing;

[0023] The tank medium sensor is used to collect the liquid level, temperature and gas space pressure data information of the medium in the tank;

[0024] The brake system sensor is used to monitor the brake cylinder pressure, brake cylinder displacement, main pipe pressure, and air storage cylinder pressure data information during the brake release process;

[0025] The bogie sensor is used to monitor bearing data information during vehicle operation;

[0026] The vehicle positioning system is used to collect vehicle position information in real time.

[0027] Furthermore, the tank medium sensor includes a temperature sensor, a pressure sensor and a liquid level sensor, and the temperature sensor, the pressure sensor and the liquid level sensor are used to collect the tank medium temperature, the tank gas pressure and the tank medium liquid level information of the railway tank car respectively.

[0028] Further, the steering sensor includes a bearing temperature vibration sensor and an ambient temperature sensor;

[0029] The bearing temperature vibration sensor is arranged on the bogie bearing, and the contact on the bearing temperature vibration sensor contacts the tail of the bogie bearing, and is used to monitor the bearing temperature and vibration during the brake release process;

[0030] The ambient temperature sensor is used to monitor the ambient temperature during the operation of the vehicle.

[0031] Furthermore, the vehicle positioning system is a GPS positioning system.

[0032] Beneficial effects of the present invention:

[0033] [1] The present invention discloses a brake system sensor for a railway tank car. The brake cylinder push rod displacement sensor is arranged on the brake cylinder push rod to monitor the push rod displacement information during the brake release process, confirm the position of the push rod, and judge whether the brake cylinder has braked sufficiently and released completely; the brake cylinder pressure sensor, the main pipe pressure sensor and the air storage cylinder pressure sensor are respectively used to monitor the pressure of each key component such as the brake cylinder, the brake main pipe and the air storage cylinder during the brake release process, and judge whether the brake system is working normally according to the pressure change trend, which effectively improves the monitoring accuracy of the system, obtains the movement status information of the tank car in time, provides detailed and accurate monitoring information for the staff, eliminates faults in time, ensures the normal operation of the system, and effectively improves the safety and stability of the system.

[0034] [2] The present invention can monitor the braking system in real time through the braking system sensor, quickly determine whether the braking system functions normally, and greatly improve the safety of the system operation process. Through real-time monitoring of the pressure of the brake cylinder, the brake main pipeline, and the air storage cylinder, it can be determined whether the pressure of each braking component meets the requirements. When the pressure does not meet the requirements, the fault location of the braking system can be preliminarily determined by determining the pressure relationship among the three. During the braking system relief process, through real-time monitoring of the pressure of the brake cylinder, the brake main pipeline, and the air storage cylinder, it can be determined whether the brake cylinder relief speed meets the requirements. When a non-relieved fault occurs, by determining the pressure relationship among the three, the fault location information and fault type information can be quickly determined, which effectively improves the monitoring efficiency and saves the monitoring time.

[0035] [3] The railway tank car operation monitoring system of the present invention sets corresponding monitoring sensors at different positions on the railway tank car, monitors the operation information of the railway tank car in real time through each monitoring sensor, and transmits the data to the vehicle gateway and the host computer for data processing in real time, so as to obtain real-time and reliable monitoring data information, effectively improve the safety performance of vehicle transportation, and monitor the data information of the railway tank car in real time, so that users can understand the operation status of the railway tank car in a timely and convenient manner, which is convenient for users to manage, use and maintain the railway tank car, and effectively saves management resources and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a brake system sensor for a railway tank car according to the present invention;

[0037] Figure 2 A system flow chart of an embodiment of a railway tank car operation monitoring system of the present invention;

[0038] Figure 3 Schematic diagram of the installation position of the bearing temperature vibration sensor in an embodiment of the present invention;

[0039] Figure 4 Schematic diagram of the installation position of the brake cylinder push rod displacement sensor in the embodiment of the present invention;

[0040] Reference numerals:

[0041] 1-brake cylinder push rod displacement sensor, 2-brake cylinder pressure sensor, 3-main pipe pressure sensor, 4-air storage cylinder pressure sensor, 5-brake cylinder, 6-brake cylinder push rod, 7-brake pressure limiting valve, 8-brake main pipe, 9-air storage cylinder, 10-connecting valve, 11-power supply system, 12-on-board gateway, 13-bearing temperature and vibration sensor, 14-bogie bearing, 15-connecting rod, 16-pull rod fixing ring. DETAILED DESCRIPTION

[0042] like Figure 1As shown, a brake system sensor for a railway tank car includes a brake cylinder push rod displacement sensor, a brake cylinder pressure sensor, a main pipe pressure sensor and an air storage cylinder pressure sensor;

[0043] The brake cylinder push rod displacement sensor is arranged between the brake cylinder and the brake cylinder push rod, and is fixed on the tank body by a suspension bracket. It can monitor the displacement of the brake cylinder push rod 6 in real time during the vehicle brake release process, and determine whether the push rod position meets the requirements when the vehicle brake system brakes, and whether the vehicle brake system fails to release or has brake failures when releasing. The brake cylinder push rod 6 displacement sensor is used to monitor the push rod displacement information during the brake release process, confirm the position of the push rod, and determine whether the brake cylinder 5 is fully braked and released completely; Figure 4 As shown, the connecting end of the brake cylinder push rod displacement sensor 1 and the brake cylinder push rod 6 is connected via a connecting rod 15 parallel to the brake cylinder push rod 6; one end of the connecting rod 15 is connected to the brake cylinder push rod displacement sensor 1, and the other end is provided with a pull rod fixing ring 16, which is connected to the pin hole of the floating end of the brake cylinder push rod 6.

[0044] The brake cylinder pressure sensor 2 is arranged on the ventilation duct connecting the brake pressure limiting valve 7 and the brake cylinder 5, and is connected to the ventilation duct of the brake cylinder 5 through a tee, and is used to monitor the pressure in the brake cylinder 5 during the brake release process;

[0045] The main pipe pressure sensor 3 is arranged on the flange connection of the brake main pipe 8 of the railway tank car and connected to the brake main pipe 8, and is connected to the brake main pipe 8 through a tee, and is used to monitor the air pressure in the brake main pipe during the brake release process;

[0046] The air storage cylinder pressure sensor 4 is arranged on the ventilation duct between the air storage cylinder 9 of the railway tank car and the connecting valve 10. It is connected to the ventilation duct of the connecting valve 10 through a three-way connection and is used to monitor the air pressure in the air storage cylinder 9 during the brake release process.

[0047] The brake cylinder pressure sensor 2, the main pipe pressure sensor 3 and the air storage cylinder pressure sensor 4 respectively monitor the pressure of key components such as the brake cylinder 5, the brake main pipe 8, the air storage cylinder 9, etc. during the brake release process in real time, and judge whether the brake system is working normally and whether there is any leakage based on the pressure change trend.

[0048] During the braking process of the braking system, by real-time monitoring of the pressures of the brake cylinder 5, the brake main pipe 8, and the air storage cylinder 9, it is possible to determine whether the pressures of the various braking components meet the requirements. When the pressures do not meet the requirements, the pressure relationship among the three can be determined to preliminarily determine the location of the brake system fault. During the relief process of the braking system, by real-time monitoring of the pressures of the brake cylinder 5, the brake main pipe 8, and the air storage cylinder 9, it is possible to determine whether the relief speed of the brake cylinder 5 meets the requirements. When a non-relieved fault occurs, the fault location information and fault type information can be quickly determined by determining the pressure relationship among the three, thereby effectively improving the monitoring efficiency, saving monitoring time, and improving the safety of the operation process.

[0049] like Figure 2 As shown, a railway tank car operation monitoring system includes a power supply system 11, an on-board gateway 12, a tank medium sensor, a brake system sensor, a steering sensor and a vehicle positioning system; the power supply system 11 is connected to the on-board gateway 12 through a power supply wire and a signal line, and the on-board gateway 12 is connected to the tank medium sensor, the brake system sensor, the steering sensor and the vehicle positioning system through a power supply wire and a signal line; the on-board gateway 12 is used to communicate with an external host computer; the power supply system 11 is used to provide power to the tank medium sensor, the brake system sensor, the steering sensor and the vehicle positioning system through the power supply wire and the on-board gateway 12;

[0050] The vehicle gateway 12 is used to collect data information from the tank medium sensor, brake system sensor, steering sensor and vehicle positioning system through the signal line, and transmit it to the external host computer for data processing;

[0051] The tank medium sensor includes a temperature sensor, a pressure sensor and a liquid level sensor, which are used to collect the tank medium temperature, the tank gas pressure and the tank medium liquid level information of the railway tank car respectively;

[0052] The brake system sensor includes a brake cylinder push rod displacement sensor 1, a brake cylinder pressure sensor 2, a main pipe pressure sensor 3 and an air storage cylinder pressure sensor 4. The brake cylinder push rod displacement sensor 1 and the brake cylinder pressure sensor 2 are used to monitor the displacement of the brake cylinder push rod 6 and the cylinder pressure of the brake cylinder 5 during the brake release process respectively; the main pipe pressure sensor 3 is arranged on the main ventilation duct of the railway tank car, and is used to monitor the air pressure in the main ventilation duct during the brake release process; the air storage cylinder pressure sensor 4 is arranged on the air storage cylinder 9 of the railway tank car, and is used to monitor the air pressure in the air storage cylinder 9 during the brake release process; the brake system sensor is used to monitor the brake cylinder 5 pressure, brake cylinder 5 displacement, main pipe pressure, and air storage cylinder 9 pressure data information during the brake release process;

[0053] like Figure 3As shown, the steering sensor includes a bearing temperature vibration sensor 13 and an ambient temperature sensor; the bearing temperature vibration sensor 13 is arranged on the bogie bearing 14, and the contact on the bearing temperature vibration sensor 13 contacts the tail of the bogie bearing 14, which is used to monitor the bearing temperature and vibration during the braking relief process; the ambient temperature sensor is used to monitor the ambient temperature during the braking relief process;

[0054] The vehicle positioning system is a GPS positioning system, which is used to collect vehicle location information in real time.

Claims

1. A brake system sensor for a railway tank car, characterized in that: It comprises a brake cylinder push rod displacement sensor (1), a brake cylinder pressure sensor (2), a main pipe pressure sensor (3) and an air storage cylinder pressure sensor (4); The brake cylinder push rod displacement sensor (1) is arranged between the brake cylinder (5) and the brake cylinder push rod (6) and is used to monitor the displacement of the brake cylinder push rod (6) during the brake release process; The brake cylinder pressure sensor (2) is arranged on a ventilation duct connecting the brake pressure limiting valve (7) and the brake cylinder (5), and is used to monitor the pressure in the brake cylinder (5) during the brake release process; The main pipe pressure sensor (3) is arranged on the flange connection of the brake main pipe (8) of the railway tank car and connected to the brake main pipe (8) to monitor the air pressure in the brake main pipe (8) during the brake release process; The air storage cylinder pressure sensor (4) is arranged on a ventilation duct between an air storage cylinder (9) and a connecting valve (10) of a railway tank car, and is used to monitor the air pressure in the air storage cylinder (9) during a brake release process.

2. The brake system sensor for a railway tank car according to claim 1, characterized in that: The brake cylinder push rod displacement sensor (1) is connected to the connecting end of the brake cylinder push rod (6) via a connecting rod (15) parallel to the brake cylinder push rod (6); One end of the connecting rod (15) is connected to the brake cylinder push rod displacement sensor (1), and the other end is provided with a pull rod fixing ring (16), and the pull rod fixing ring (16) is connected to the pin hole of the movable end of the brake cylinder push rod (6).

3. The brake system sensor for a railway tank car according to claim 2, characterized in that: The brake cylinder pressure sensor (2) is connected to the ventilation duct of the brake cylinder (5) via a tee; The main pipe pressure sensor (3) is connected to the brake main pipe (8) via a tee; The air storage cylinder pressure sensor (4) is connected to the ventilation duct of the connecting valve (10) via a three-way connection.

4. A railway tank car operation monitoring system, characterized in that: It comprises a power supply system (11), an on-board gateway (12), a tank medium sensor, a steering sensor and a vehicle positioning system, and a brake system sensor for a railway tank car as claimed in claim 1; The power supply system (11) is connected to the vehicle-mounted gateway (12) via a power supply wire and a signal wire, and the vehicle-mounted gateway (12) is connected to a tank medium sensor, a brake system sensor, a steering sensor, and a vehicle positioning system via a power supply wire and a signal wire; the vehicle-mounted gateway (12) is used for communication connection with an external host computer; The power supply system (11) is used to provide power to the tank medium sensor, the brake system sensor, the steering sensor and the vehicle positioning system through the power supply wire via the vehicle gateway (12), and the vehicle gateway (12) reads the power supply system (11) and the fault signal through the signal line; The vehicle-mounted gateway (12) is used to collect data information from the tank medium sensor, the brake system sensor, the steering sensor and the vehicle positioning system through the signal line, and transmit it to the external host computer for data processing; The tank medium sensor is used to collect the liquid level, temperature and gas space pressure data information of the medium in the tank; The brake system sensor is used to monitor the brake cylinder (5) pressure, brake cylinder (5) displacement, main pipe pressure, and air storage cylinder (9) pressure data information during the brake release process; The bogie sensor is used to monitor bearing data information during vehicle operation; The vehicle positioning system is used to collect vehicle position information in real time.

5. A railway tank car operation monitoring system according to claim 4, characterized in that: The tank medium sensor includes a temperature sensor, a pressure sensor and a liquid level sensor, which are used to collect the tank medium temperature, the tank gas pressure and the tank medium liquid level information of the railway tank car respectively.

6. A railway tank car operation monitoring system according to claim 5, characterized in that: The steering sensor comprises a bearing temperature vibration sensor (13) and an ambient temperature sensor; The bearing temperature vibration sensor (13) is arranged on the bogie bearing (14), and the contact on the bearing temperature vibration sensor (13) contacts the tail of the bogie bearing (14) to monitor the bearing temperature and vibration during the braking release process; The ambient temperature sensor is used to monitor the ambient temperature during the operation of the vehicle.

7. A railway tank car operation monitoring system according to claim 6, characterized in that: The vehicle positioning system is a GPS positioning system.

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