阅读说明：本技术 一种动车组轮对车载检测装置及方法 (Motor train unit wheel set vehicle-mounted detection device and method ) 是由 何武山 毕涛 邱建平 李加祺 林飞 邱绍峰 殷勤 左玉东 王林 刘宗泽 于 2019-09-19 设计创作，主要内容包括：本发明公开了一种动车组轮对车载检测装置,其特征在于,包括：安装在轮对轴箱上的无线传感器,用于车轮踏面、轴承状态检测；安装在转向架上的无线传感器,用于识别转向架结构状态；安装在制动管路上的无线传感器,用于列车管压力、制动缸压力检测；安装在锁销、阀门上的无线传感器,用于监测开合状态；还包括云端服务器,用于检测数据的集中交互。通过在轮对轴箱、转向架、制动管路等部位加装自供电模块、无线传感器节点与数据采集处理终端,实现动车组及机车轮对、轴承、转向架、制动系统及其他关键部件状态与变化趋势的实时监测。(The invention discloses a vehicle-mounted detection device for a wheel set of a motor train unit, which is characterized by comprising the following components: the wireless sensor is arranged on the wheel set axle box and used for detecting the wheel tread and the bearing state; the wireless sensor is arranged on the bogie and is used for identifying the structural state of the bogie; the wireless sensor is arranged on the brake pipeline and is used for detecting the pressure of the train pipe and the pressure of the brake cylinder; the wireless sensors are arranged on the lock pin and the valve and used for monitoring the opening and closing state; the system further comprises a cloud server for detecting the centralized interaction of the data. The self-powered module, the wireless sensor node and the data acquisition and processing terminal are additionally arranged at the positions of a wheel pair axle box, a bogie, a brake pipeline and the like, so that the real-time monitoring of the states and the change trends of the motor train unit, the wheel pair of the motor train unit, a bearing, the bogie, a brake system and other key components is realized.)

1. The utility model provides an on-vehicle detection device of EMUs wheel pair which characterized in that includes:

the wireless sensor is arranged on the wheel set axle box and used for detecting the wheel tread and the bearing state;

the wireless sensor is arranged on the bogie and is used for identifying the structural state of the bogie;

the wireless sensor is arranged on the brake pipeline and is used for detecting the pressure of the train pipe and the pressure of the brake cylinder;

the wireless sensors are arranged on the lock pin and the valve and used for monitoring the opening and closing state;

the system further comprises a cloud server for detecting the centralized interaction of the data.

2. The motor train unit wheelset vehicle-mounted detection device of claim 1, characterized in that:

the wireless sensor on the wheel set axle box is a temperature and vibration impact composite sensor (1);

preferably, the wireless sensor on the bogie is a vibration shock sensor;

preferably, the wireless sensor on the brake pipeline is an air pressure detection sensor;

preferably, the wireless sensors on the lock pin and the valve are position detection sensors.

3. The motor train unit wheelset vehicle-mounted detection device of claim 1, characterized in that:

the vehicle-mounted detection device for the motor train unit wheel pair further comprises a bus junction box (2), a detection host (3), a data transmission device (4) and a speed measurement unit (5);

the bus junction box (2) is used for summarizing data of wireless sensors on the wheel set axle box, the bogie, a brake pipeline, a lock pin and a valve and connecting the data to the detection host (3);

the detection host (3) combines the speed signal of the speed measurement unit (5) to output a detection result to the data transmission device (4) to be transmitted to the cloud server.

4. The motor train unit wheelset vehicle-mounted detection device of claim 1, characterized in that:

the motor train unit wheel set vehicle-mounted detection device also comprises a self-powered device which is used as a self-used power supply of the motor train unit wheel set vehicle-mounted detection device;

preferably, the system further comprises a satellite positioning device for providing real-time position positioning for the vehicle-mounted detection device of the motor train unit wheel pair.

5. The motor train unit wheelset vehicle-mounted detection device of claim 1, characterized in that:

and each carriage is provided with one set of the motor train unit wheel pair vehicle-mounted detection device, and the motor train unit wheel pair vehicle-mounted detection devices of different carriages are connected in series through wireless communication.

6. A vehicle-mounted detection method for a wheel set of a motor train unit is characterized by comprising the following steps:

the detection of the tread and the bearing state of the wheel is realized by installing a wireless sensor on the axle box of the wheel pair;

the structure state of the bogie is identified by installing a wireless sensor on the bogie;

the pressure detection of the train pipe and the pressure detection of the brake cylinder are realized by installing a wireless sensor on the brake pipeline;

the opening and closing state is monitored by installing wireless sensors on the lock pin and the valve;

and transmitting the detection data of the wireless sensors at each detection position to a cloud server for centralized interaction, and realizing unified data management, centralized alarm, data confirmation, query statistics and network sharing.

7. The motor train unit wheelset vehicle-mounted detection method of claim 6, characterized in that:

the wireless sensor on the wheel set axle box is a temperature and vibration impact composite sensor (1);

preferably, the wireless sensor on the bogie is a vibration shock sensor;

preferably, the wireless sensor on the brake pipeline is an air pressure detection sensor;

preferably, the wireless sensors on the lock pin and the valve are position detection sensors.

8. The motor train unit wheelset vehicle-mounted detection method of claim 6, characterized in that:

during the vehicle-mounted detection process of the wheel set of the motor train unit, data of wireless sensors on the wheel set axle box, a bogie, a brake pipeline, a lock pin and a valve are gathered through a bus junction box (2) and are connected to a detection host (3); the detection host (3) outputs a detection result to the data transmission device (4) by combining with the speed signal of the speed measurement unit (5) and transmits the detection result to the cloud server.

9. The motor train unit wheelset vehicle-mounted detection method of claim 6, characterized in that:

in the vehicle-mounted detection process of the motor train unit wheel pair, self-powering is carried out through a vehicle-mounted self-powering device;

preferably, the real-time position location service is also provided by a satellite positioning device.

10. The motor train unit wheelset vehicle-mounted detection method of claim 6, characterized in that:

and each carriage independently carries out vehicle-mounted detection of the motor train unit wheel pair, and the motor train unit wheel pairs of different carriages are in wireless communication series connection with each other.

Technical Field

The invention belongs to the field of vehicle maintenance and detection, and particularly relates to a vehicle-mounted detection device and method for a motor train unit wheel set.

Background

The running part is a key part of the railway train and can ensure that the train flexibly, safely and smoothly runs along the steel rail and passes through a curve; and various forces borne by the vehicle are reliably transmitted to the steel rail, so that the mutual impact between the vehicle and the steel rail is alleviated, the vibration of the vehicle is reduced, and the sufficient running stability and good running quality are ensured, therefore, the quality condition of the running part is directly related to the running safety of the train.

The wheel set is a key part of the running part and mainly comprises wheels, axles and bearings. The wheels are the final stressed parts for running of the motor train unit. Under the condition of high-speed operation, the wheel is easy to have surface fading, internal defects, wheel out-of-round and other dangerous faults, and the operation safety is seriously influenced. The internal stress state of the axle is the combination of various stresses, and fatigue cracks are easy to generate after the axle is used for a certain time. In which the risk of transverse cracks is great and can lead to the occurrence of a broken shaft accident. The axle box bearing bears large dynamic load, the bearing can rapidly develop once the bearing breaks down, and if the bearing is not found in time, the safety accidents of the vehicle such as a hot shaft, a burning shaft, a cutting shaft and the like can be caused.

The existing nondestructive detection method for wheel sets mainly uses ground detection, mainly utilizes sound, light, magnetism and electric characteristics, detects defects and nonuniformity of key parts of a running part through means such as ultrasonic detection, ray detection, magnetic powder detection, penetration detection, eddy current detection and the like on the premise of not influencing the use performance, and provides information such as size, position, property, quantity and the like. The research on the vehicle-mounted detection method is less.

With the rapid development of high-speed railways in China, short plates of a ground wheel set nondestructive testing method are as follows:

the method is limited by a detection field, so that a train can be detected only in a detection area, faults occurring when the train runs in a non-detection area cannot be well detected, unpredictability of factors causing 'abnormal stop' of the train in transit and even unpredictability before serious accidents such as 'derailment' of the train and the like occur are not predicted;

secondly, the problem of non-real-time detection is also very prominent, data processing is carried out on the ground, the processed data volume is large, other transmission modes are required to be uploaded to a train control end, the period is long, and the problems of low efficiency and the like are gradually highlighted.

Therefore, various faults such as wheel out-of-roundness of the train wheel set, wheel tread defects, bearing fault early warning and the like can be timely and accurately found, accidents such as on-line train stopping and the like are reduced, the quality of maintenance is improved, and the method is the research institute of a vehicle-mounted detection method.

Disclosure of Invention

Aiming at least one of the defects or improvement requirements in the prior art, the invention provides a vehicle-mounted detection device for wheel sets of a motor train unit, which is characterized in that a self-powered module, a wireless sensor node and a data acquisition and processing terminal are additionally arranged at positions of wheel set axle boxes, bogies, brake pipelines and the like, so that the real-time monitoring of states and change trends of motor train units, wheel sets of the motor train unit, bearings, bogies, brake systems and other key components is realized.

In order to achieve the above object, according to one aspect of the present invention, there is provided a vehicle-mounted detection device for wheel sets of a motor train unit, comprising:

the wireless sensor is arranged on the wheel set axle box and used for detecting the wheel tread and the bearing state;

the wireless sensor is arranged on the bogie and is used for identifying the structural state of the bogie;

the wireless sensor is arranged on the brake pipeline and is used for detecting the pressure of the train pipe and the pressure of the brake cylinder;

the wireless sensors are arranged on the lock pin and the valve and used for monitoring the opening and closing state;

the system further comprises a cloud server for detecting the centralized interaction of the data.

Preferably, the wireless sensor on the wheel-set axle box is a temperature and vibration impact composite sensor;

preferably, the wireless sensor on the bogie is a vibration shock sensor;

preferably, the wireless sensor on the brake pipeline is an air pressure detection sensor;

preferably, the wireless sensors on the lock pin and the valve are position detection sensors.

Preferably, the vehicle-mounted detection device for the motor train unit wheel pair further comprises a bus junction box, a detection host, a data transmission device and a speed measurement unit;

the bus junction box is used for summarizing data of the wireless sensors on the wheel set axle boxes, the bogie, the brake pipeline, the lock pins and the valves and connecting the data into the detection host;

the detection host outputs a detection result to the data transmission device by combining with the speed signal of the speed measurement unit, and the detection result is transmitted to the cloud server.

Preferably, the motor train unit wheel set vehicle-mounted detection device further comprises a self-powered device which is used as a self-used power supply of the motor train unit wheel set vehicle-mounted detection device;

preferably, the system further comprises a satellite positioning device for providing real-time position positioning for the vehicle-mounted detection device of the motor train unit wheel pair.

Preferably, each carriage is provided with one set of the motor train unit wheel pair vehicle-mounted detection device, and the motor train unit wheel pair vehicle-mounted detection devices of different carriages are in wireless communication series connection.

In order to achieve the above object, according to another aspect of the present invention, there is also provided a method for detecting wheel sets of a motor train unit on a vehicle, wherein:

the detection of the tread and the bearing state of the wheel is realized by installing a wireless sensor on the axle box of the wheel pair;

the structure state of the bogie is identified by installing a wireless sensor on the bogie;

the pressure detection of the train pipe and the pressure detection of the brake cylinder are realized by installing a wireless sensor on the brake pipeline;

the opening and closing state is monitored by installing wireless sensors on the lock pin and the valve;

and transmitting the detection data of the wireless sensors at each detection position to a cloud server for centralized interaction, and realizing unified data management, centralized alarm, data confirmation, query statistics and network sharing.

Preferably, the wireless sensor on the wheel-set axle box is a temperature and vibration impact composite sensor;

preferably, the wireless sensor on the bogie is a vibration shock sensor;

preferably, the wireless sensor on the brake pipeline is an air pressure detection sensor;

preferably, the wireless sensors on the lock pin and the valve are position detection sensors.

Preferably, in the vehicle-mounted detection process of the wheel set of the motor train unit, data of wireless sensors on the wheel set axle box, the bogie, the brake pipeline, the lock pin and the valve are collected and connected to a detection host through a bus junction box; the detection host outputs a detection result to the data transmission device by combining with the speed signal of the speed measurement unit and transmits the detection result to the cloud server.

Preferably, in the vehicle-mounted detection process of the motor train unit wheel pair, self-power is supplied through a vehicle-mounted self-power supply device;

preferably, the real-time position location service is also provided by a satellite positioning device.

Preferably, each carriage independently carries out vehicle-mounted detection of the motor train unit wheel set, and the motor train unit wheel sets of different carriages are connected in series through wireless communication.

The above-described preferred features may be combined with each other as long as they do not conflict with each other.

Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

1. according to the vehicle-mounted detection device and method for the wheel set of the motor train unit, disclosed by the invention, the out-of-roundness of the wheel, the tread defect of the wheel, the bearing fault and the like are detected in real time by the vehicle-mounted detection device for the running part, so that the safety and the reliability of the motor train unit are ensured, and the safe and reliable running of the running part of the high-speed rail motor train unit is realized.

2. All the steps of the train wheel set detection device and method based on vehicle-mounted detection are completed in a vehicle-mounted environment, and the train wheel set detection device and method are a fault diagnosis system integrating data acquisition, data processing and fault judgment, reduce the dependence on remote assistance, have important significance for guiding the safe operation of a train, and provide a new direction for exploring a better detection and diagnosis method.

Drawings

FIG. 1 is a schematic diagram of a motor train unit wheel set vehicle-mounted detection device of a single carriage;

fig. 2 is a schematic diagram of the multi-compartment motor train unit wheel set vehicle-mounted detection device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to specific embodiments.

The five-layer comprehensive detection method and device for the running gear of the motor train unit are divided into five layers of vehicle-mounted detection, main line detection, daily dynamic detection, regular online detection and regular wheel-dropping detection. As a preferred embodiment of the present invention, as shown in fig. 1-2, the present invention provides a vehicle-mounted detection device for wheel sets of a motor train unit, comprising:

the wireless sensor is arranged on the wheel set axle box and used for detecting the wheel tread and the bearing state; preferably, the wireless sensor on the wheelset axle box is a temperature and vibration impact composite sensor 1.

The wireless sensor is arranged on the bogie and is used for identifying the structural state of the bogie; preferably, the wireless sensor on the bogie is a vibratory shock sensor.

The wireless sensor is arranged on the brake pipeline and is used for detecting the pressure of the train pipe and the pressure of the brake cylinder; preferably, the wireless sensor on the brake pipe is an air pressure detection sensor.

Wireless sensors mounted on key components such as lock pins, valves, etc. for monitoring the open and close states; preferably, the wireless sensors on the lock pin and the valve are position detection sensors.

The cloud server is used for detecting the centralized interaction of the data and realizing the unified management of the data, the centralized alarm, the data confirmation, the query statistics and the network sharing.

As shown in fig. 1-2, the vehicle-mounted detection device for the wheel set of the motor train unit further comprises a bus junction box 2, a detection host 3, a data transmission device 4 and a speed measurement unit 5. The detection host 3 specifically adopts a DPU unit, the data transmission device 4 specifically adopts a TCMS module and provides an HMI (human machine interface), and the speed measurement unit 5 obtains a speed signal through a train BCU unit.

The bus junction box 2 is used for summarizing data of wireless sensors on the wheel set axle box, the bogie, a brake pipeline, a lock pin and a valve and connecting the data into the detection host 3; the detection host 3 outputs a detection result to the data transmission device 4 and transmits the detection result to the cloud server by combining with the speed signal of the speed measurement unit 5.

Preferably, the motor train unit wheel set vehicle-mounted detection device further comprises a self-powered device which is used as a self-used power supply of the motor train unit wheel set vehicle-mounted detection device; preferably, the system further comprises a satellite positioning device for providing real-time position positioning for the vehicle-mounted detection device of the motor train unit wheel pair.

Preferably, each carriage is provided with one set of the motor train unit wheel pair vehicle-mounted detection device, and the motor train unit wheel pair vehicle-mounted detection devices of different carriages are in wireless communication series connection.

The invention is based on advanced technologies such as vehicle-mounted vibration self-power supply, wireless communication network, GPS positioning, wireless MEMS sensing, low-power consumption embedded intelligent acquisition and the like, combines the acquisition and processing of composite physical parameters such as vibration, temperature, sound, pressure, position sensing and the like, and realizes the real-time monitoring of the states and the change trends of motor train unit and locomotive wheel pairs, bearings, bogies, braking systems and other key components by additionally arranging a self-power supply module, wireless sensor nodes and a data acquisition and processing terminal at the positions of wheel set axle boxes, bogies, braking pipelines and the like.

The invention also provides a vehicle-mounted detection method for the wheel set of the motor train unit, wherein the method comprises the following steps:

the detection of the tread and the bearing state of the wheel is realized by installing a wireless sensor on the axle box of the wheel pair; preferably, the wireless sensor on the wheel-set axle box is a temperature and vibration impact composite sensor 1;

the structure state of the bogie is identified by installing a wireless sensor on the bogie; preferably, the wireless sensor on the bogie is a vibration shock sensor;

the pressure detection of the train pipe and the pressure detection of the brake cylinder are realized by installing a wireless sensor on the brake pipeline; preferably, the wireless sensor on the brake pipeline is an air pressure detection sensor;

the opening and closing state is monitored by installing wireless sensors on the lock pin and the valve; preferably, the wireless sensors on the lock pin and the valve are position detection sensors;

and transmitting the detection data of the wireless sensors at each detection position to a cloud server for centralized interaction, and realizing unified data management, centralized alarm, data confirmation, query statistics and network sharing.

Preferably, in the vehicle-mounted detection process of the wheel set of the motor train unit, data of wireless sensors on the wheel set axle box, the bogie, the brake pipeline, the lock pin and the valve are collected and connected into the detection host machine 3 through the bus junction box 2; the detection host 3 outputs a detection result to the data transmission device 4 by combining with the speed signal of the speed measurement unit 5, and transmits the detection result to the cloud server.

Preferably, in the vehicle-mounted detection process of the motor train unit wheel pair, self-power is supplied through a vehicle-mounted self-power supply device; preferably, the real-time position location service is also provided by a satellite positioning device. Preferably, each carriage independently carries out vehicle-mounted detection of the motor train unit wheel set, and the motor train unit wheel sets of different carriages are connected in series through wireless communication.

The invention ensures the safety and the reliability of the motor train unit by detecting the wheel out-of-roundness, the wheel tread defect, the bearing fault and the like in real time by the vehicle-mounted detection device of the running part, thereby realizing the safe and reliable operation of the running part of the high-speed rail motor train unit.

In the invention, all the steps are completed in a vehicle-mounted environment, and the method is a fault diagnosis system integrating data acquisition, data processing and fault judgment, reduces the dependence on remote assistance, has important significance for guiding the safe operation of a train, and provides a new direction for exploring a better detection and diagnosis method.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.