CN102798413B - A kind of railway dynamic detection system - Google Patents
A kind of railway dynamic detection system Download PDFInfo
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- CN102798413B CN102798413B CN201210272815.6A CN201210272815A CN102798413B CN 102798413 B CN102798413 B CN 102798413B CN 201210272815 A CN201210272815 A CN 201210272815A CN 102798413 B CN102798413 B CN 102798413B
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Abstract
The present invention discloses a kind of railway dynamic detection system, comprises data perception unit, data acquisition unit and data processing unit.This system can complete and rotates uneven to bogie wheel shaft is issuable and rotates the real-time diagnosis misaligning fault, to the wheel of bogie under rolling stock's running status to the Real-Time Monitoring of the duty of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine, and real-time diagnosis can be carried out to issuable fault.Simultaneously, utilize the real-time transmission characteristic of vibration, the vibration and shock signal when vibration and shock signal during rolling stock's operation produced due to railroad track damage by acquisition and the rolling stock's operation due to Railway Roadbed generation, is monitored railroad track damage and subgrade defect.Compared with traditional railway detection system, the present invention can not only carry out comprehensive diagnostic to the fault of rolling stock, and detection efficiency is high.
Description
Technical field
The present invention relates to the security of operation detection field of rolling stock, particularly relate to a kind of railway dynamic detection system.
Background technology
Train is the important tool of traffic and transport, and it has, and freight volume is large, speed is fast, convenient, safety coefficient is high, circuit is fixed and the feature of time and the unified marshalling operation of bus stop.How to take the safety of effective management and technological means guarantee rolling stock, railroad track and railway bed, enter running status with what ensure train non-fault hidden danger, prevent personal safety as well as the property safety accident, become the emphasis of railway work.
Take rolling stock as motor train unit train be example, the detection of railway comprises motor train unit safety detection, the damage monitoring of railroad track and Railway Roadbed and monitors three parts.At present, the safety detection of motor train unit is still based on the temperature monitor of routine, also some vibration monitorings and failure diagnostic apparatus is had, but they are not all monitored the whirling vibration characteristic of the critical component wheel shaft of bogie, cannot uneven to the rotation of wheel shaft, the diagnosing malfunction such as to misalign and differentiate, therefore, still have part motor train unit fault to create to fail to judge.The damage monitoring of railroad track is based on traditional hand propelled defectoscope and large-scale inspection car, along with the increase that raising and the axle of train speed weigh, the speed of development also corresponding quickening of rail track damage, in addition rate of traffic flow is large, traditional defect-detecting equipment efficiency is too low, can not adapt to the needs of the development of railway.And there is detection speed series of problems such as grade slowly in the detection technique of ultrasound wave railroad track loss newly developed.Railway Roadbed monitoring adopts GCO probe GCO, geological radar, Transient Surface Wave Method and the multiple means such as test that fetch earth to test roadbed, thus obtain the defect information of roadbed, but, this monitoring method workload is large and monitoring efficiency is low, will lag behind the demand of railway high speed development gradually.
Summary of the invention
For above-mentioned technical matters, the object of the present invention is to provide a kind of railway dynamic detection system, which solving traditional railway detection system can not comprehensive diagnostic to the fault of rolling stock, and the problem low to the detection efficiency of railroad track damage and Railway Roadbed.
For reaching this object, the present invention by the following technical solutions:
A kind of railway dynamic detection system, comprises data perception unit, data acquisition unit and data processing unit;
Described data perception unit is arranged on bogie, to the temperature signal of the temperature signal of traction electric machine bearing and vibration signal, the temperature signal of bogie wheel set bearing and the transmission gear of vibration signal and traction electric machine and vibration signal, and data acquisition unit is exported to for the tach signal of real-time detection bogie wheel shaft, the wheel of bogie;
The standard signal that described data acquisition unit can identify for the described tach signal of input, temperature signal and vibration signal being converted to data processing unit, and export to data processing unit;
Described data processing unit is used for the described standard signal of input to be converted to digital signal, and this digital signal is analyzed, the wheel of acquisition bogie wheel shaft, bogie is to the status information of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine and failure message.
Especially, described data perception unit also for
Vibration and shock signal during rolling stock's operation that real-time detection produces due to railroad track damage; This vibration and shock signal inputs data processing unit process after data acquisition unit process, obtains the damage information of railroad track.
Especially, described data perception unit is further used for
Vibration and shock signal during rolling stock's operation that real-time detection produces due to Railway Roadbed; This vibration and shock signal inputs data processing unit process after data acquisition unit process, obtains Railway Roadbed information.
Especially, described data processing unit also for
The wheel of analysis bogie wheel shaft, bogie, to the status information of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine, carries out early warning to the fault that may exist.
Especially, described data perception unit specifically comprises: speed probe, motor bearings temperature sensor, motor bearings vibration transducer, wheel set bearing temperature sensor, wheel set bearing vibration transducer, motor gear temperature sensor, motor gear vibration transducer, track damage vibration transducer and subgrade defect vibration transducer;
Described speed probe is used for the tach signal of real-time detection bogie wheel shaft;
Described motor bearings temperature sensor and motor bearings vibration transducer are respectively used to the wheel of real-time detection bogie to the temperature signal of traction electric machine bearing and vibration signal;
Described wheel set bearing temperature sensor and wheel set bearing vibration transducer are respectively used to temperature signal and the vibration signal of real-time detection bogie wheel set bearing;
Described motor gear temperature sensor and motor gear vibration transducer are respectively used to real-time detection motor gear temperature sensor and motor gear vibration transducer;
Described track damage vibration transducer is arranged on bogie, for real-time detection due to vibration and shock signal when rolling stock that railroad track damage produces runs;
Described subgrade defect vibration transducer is arranged on bogie, the vibration and shock signal when rolling stock produced due to Railway Roadbed for real-time detection runs.
The present invention can the wheel of bogie wheel shaft rotary speed information and bogie to the temperature information of the transmission gear of traction electric machine bearing, bogie wheel set bearing, traction electric machine and vibration information, and rotate uneven to steering framing wheel to the fault of traction electric machine bearing, the fault of bogie wheel set bearing, the transmission gear fault of traction electric machine and bogie wheel shaft and misalign fault and carry out real-time online diagnosis in Real-Time Monitoring rolling stock operational process.Simultaneously, utilize the real-time transmission characteristic of vibration, the vibration and shock signal when vibration and shock signal during rolling stock's operation produced due to railroad track damage by acquisition and the rolling stock's operation due to Railway Roadbed generation, is monitored railroad track damage and subgrade defect.The present invention efficiently solves traditional railway detection system can not comprehensive diagnostic to the fault of rolling stock, and the problem low to the detection efficiency of railroad track damage and Railway Roadbed.
Accompanying drawing explanation
The structural drawing of the railway dynamic detection system that Fig. 1 provides for the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with drawings and Examples, the invention will be further described.
Please refer to shown in Fig. 1, the structural drawing of the railway dynamic detection system that Fig. 1 provides for the embodiment of the present invention.
In the present embodiment, railway dynamic detection system comprises data perception unit 101, data acquisition unit 102 and data processing unit 103.Described data perception unit 101 comprises: speed probe 1011, motor bearings temperature sensor 1012, motor bearings vibration transducer 1013, wheel set bearing temperature sensor 1014, wheel set bearing vibration transducer 1015, motor gear temperature sensor 1016, motor gear vibration transducer 1017, track damage vibration transducer 1018 and subgrade defect vibration transducer 1019.Described data acquisition unit 102 selects signal picker.
Described data perception unit 101 is arranged on bogie, to the temperature signal of the temperature signal of traction electric machine bearing and vibration signal, the temperature signal of bogie wheel set bearing and the transmission gear of vibration signal and traction electric machine and vibration signal, and data acquisition unit 102 is exported to for the tach signal of real-time detection bogie wheel shaft, the wheel of bogie.
It should be noted that, in the present embodiment, the transmission gear of wheel to traction electric machine bearing, bogie wheel set bearing and traction electric machine of bogie wheel shaft, bogie is a part for bogie structure.Speed probe 1011 is for the tach signal of real-time detection bogie wheel shaft.Motor bearings temperature sensor 1012 and motor bearings vibration transducer 1013 are respectively used to the wheel of real-time detection bogie to the temperature signal of traction electric machine bearing and vibration signal.Wheel set bearing temperature sensor 1014 and wheel set bearing vibration transducer 1015 are respectively used to temperature signal and the vibration signal of real-time detection bogie wheel set bearing.Motor gear temperature sensor 1016 and motor gear vibration transducer 1017 are respectively used to real-time detection motor gear temperature sensor 1016 and motor gear vibration transducer 1017.
Because vibration has real-time transmission characteristic, and the vibration characteristics of the vibration and shock signal of the vibration and shock signal of the rolling stock to produce due to railroad track damage when running when running with the rolling stock that produces due to Railway Roadbed is different, therefore can pass through to detect carry out of vibration and shock signal to the degree of impairment of railroad track and the disease incidence of railway bed and monitor.
The vibration and shock signal when rolling stock that described data perception unit 101 also produces because railroad track damages for real-time detection runs; This vibration and shock signal inputs data processing unit 103 and processes after data acquisition unit 102 processes, and obtains the damage information of railroad track.
Data perception unit 101 is by being arranged at the track damage vibration transducer 1018 on bogie, vibration and shock signal during rolling stock's operation that real-time detection produces due to railroad track damage.
Described data perception unit 101 is further used for vibration and shock signal when rolling stock that real-time detection produces due to Railway Roadbed runs; This vibration and shock signal inputs data processing unit 103 and processes after data acquisition unit 102 processes, and obtains Railway Roadbed information.
Data perception unit 101 by being arranged at the subgrade defect vibration transducer 1019 on bogie, the vibration and shock signal when rolling stock that real-time detection produces due to Railway Roadbed runs.
The standard signal that described data acquisition unit 102 can identify for the described tach signal of input, temperature signal, vibration signal and vibration and shock signal being converted to data processing unit, and export to data processing unit 103.
Because the tach signal that data perception unit 101 detects, temperature signal, vibration signal and vibration and shock signal not easily process and control, so all signals of detecting of data perception unit 101 all will be converted to by data acquisition unit 102 standard signal that data acquisition unit can identify.In actual applications, the kind of data acquisition unit 102 has a lot, selects signal picker in the present embodiment.
Described data processing unit 103 is for being converted to digital signal by the described standard signal of input, and this digital signal is analyzed, obtain bogie wheel shaft, the wheel of bogie is to traction electric machine bearing, the status information of the transmission gear of bogie wheel set bearing and traction electric machine and failure message, and the damage information of railroad track and Railway Roadbed information, both achieved bogie wheel shaft, the wheel of bogie is to traction electric machine bearing, the on-line monitoring and fault diagonosing of the transmission gear of bogie wheel set bearing and traction electric machine, achieve again the Real-Time Monitoring to railroad track damage and Railway Roadbed.In addition, when data processing unit 103 obtain bogie wheel shaft, bogie wheel to the status information of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine after, also will analyze further this status information, thus early warning will be carried out to the fault that the transmission gear of wheel to traction electric machine bearing, bogie wheel set bearing and traction electric machine of bogie wheel shaft, bogie may exist.
Take rolling stock as motor train unit train be example.Data processing unit 103 utilizes frequency spectrum, cepstrum technology completes the wheel of bogie under motor train unit running status the Real-Time Monitoring of the Vibration Condition of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine, and real-time diagnosis is carried out to issuable fault, when there are failures, early warning is given according to the GB GB11347-89 of China and international standard ISO3945 in time.Wherein, GB11347-89 is large rotating machinery vibration severity in-site measurement and the evaluation criteria of China, and ISO3945 is international large rotating machinery vibration severity in-site measurement and evaluation criteria.The rotating speed of data processing unit 103 pairs of bogie wheel shafts is analyzed, and obtains the orbit of shaft center of bogie wheel shaft, completes and rotates uneven to bogie wheel shaft is issuable and rotates the real-time diagnosis misaligning fault.Data processing unit 103 utilizes vibratory impulse recognition technology to complete railroad track damage and the Real-Time Monitoring of Railway Roadbed.
Technical scheme of the present invention can complete and rotates uneven to bogie wheel shaft is issuable and rotates the real-time diagnosis misaligning fault, to the wheel of bogie under motor train unit running status to the Real-Time Monitoring of the duty of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine, and real-time diagnosis can be carried out to issuable fault.Simultaneously, utilize the real-time transmission characteristic of vibration, the vibration and shock signal when vibration and shock signal during rolling stock's operation produced due to railroad track damage by acquisition and the rolling stock's operation due to Railway Roadbed generation, is monitored railroad track damage and subgrade defect.Compared with traditional railway detection system, the present invention can not only carry out comprehensive diagnostic to the fault of rolling stock, and detection efficiency is high.
Above are only preferred embodiment of the present invention and institute's application technology principle, be anyly familiar with those skilled in the art in the technical scope that the present invention discloses, the change that can expect easily or replacement, all should be encompassed in protection scope of the present invention.
Claims (2)
1. a railway dynamic detection system, is characterized in that, comprises data perception unit, data acquisition unit and data processing unit;
Described data perception unit is arranged on bogie, to the temperature signal of the temperature signal of traction electric machine bearing and vibration signal, the temperature signal of bogie wheel set bearing and the transmission gear of vibration signal and traction electric machine and vibration signal, and data acquisition unit is exported to for the tach signal of real-time detection bogie wheel shaft, the wheel of bogie;
The standard signal that described data acquisition unit can identify for the described tach signal of input, temperature signal and vibration signal being converted to data processing unit, and export to data processing unit;
Described data processing unit is used for the described standard signal of input to be converted to digital signal, and this digital signal is analyzed, the wheel of acquisition bogie wheel shaft, bogie is to the status information of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine and failure message;
The vibration and shock signal when rolling stock that described data perception unit also produces because railroad track damages for real-time detection runs; This vibration and shock signal inputs data processing unit process after data acquisition unit process, obtains the damage information of railroad track;
Described data perception unit is further used for vibration and shock signal when rolling stock that real-time detection produces due to Railway Roadbed runs; This vibration and shock signal inputs data processing unit process after data acquisition unit process, obtains Railway Roadbed information;
Described data perception unit specifically comprises: speed probe, motor bearings temperature sensor, motor bearings vibration transducer, wheel set bearing temperature sensor, wheel set bearing vibration transducer, motor gear temperature sensor, motor gear vibration transducer, track damage vibration transducer and subgrade defect vibration transducer;
Described speed probe is used for the tach signal of real-time detection bogie wheel shaft;
Described motor bearings temperature sensor and motor bearings vibration transducer are respectively used to the wheel of real-time detection bogie to the temperature signal of traction electric machine bearing and vibration signal;
Described wheel set bearing temperature sensor and wheel set bearing vibration transducer are respectively used to temperature signal and the vibration signal of real-time detection bogie wheel set bearing;
Described motor gear temperature sensor and motor gear vibration transducer are respectively used to real-time detection motor gear temperature sensor and motor gear vibration transducer;
Described track damage vibration transducer is arranged on bogie, for real-time detection due to vibration and shock signal when rolling stock that railroad track damage produces runs;
Described subgrade defect vibration transducer is arranged on bogie, the vibration and shock signal when rolling stock produced due to Railway Roadbed for real-time detection runs.
2. railway dynamic detection system according to claim 1, is characterized in that, described data processing unit also for
The wheel of analysis bogie wheel shaft, bogie, to the status information of the transmission gear of traction electric machine bearing, bogie wheel set bearing and traction electric machine, carries out early warning to the fault that may exist.
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| CN201210272815.6A CN102798413B (en) | 2012-08-01 | 2012-08-01 | A kind of railway dynamic detection system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103847761B (en) * | 2012-11-30 | 2016-06-29 | 建维科技（深圳）有限公司 | A kind of system and method for monitoring rail crack and damage in real time |
| CN107161168A (en) * | 2017-05-26 | 2017-09-15 | 华东交通大学 | Rail smooth degree on train bogie dynamically adjusts adaptive device and control method |
| CN109318716B (en) * | 2017-12-20 | 2020-01-10 | 中车长春轨道客车股份有限公司 | Traction motor shaft temperature monitoring alarm control method, system and related device |
| CN108318263B (en) * | 2018-01-30 | 2020-09-25 | 中道恒通（北京）科技有限公司 | Locomotive vibration state monitoring system |
| CN115598456B (en) * | 2022-11-29 | 2023-07-04 | 科瑞工业自动化系统（苏州）有限公司 | Train fault on-line monitoring method and system |
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| CN102390408A (en) * | 2011-10-25 | 2012-03-28 | 张健 | Safety monitoring system of rail wagon |
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| JPH08282491A (en) * | 1995-04-17 | 1996-10-29 | Central Japan Railway Co | Slack sensing device for rail coupling device |
| JP3950373B2 (en) * | 2002-06-25 | 2007-08-01 | 三菱重工業株式会社 | Mobile loading test vehicle |
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| CN201965028U (en) * | 2010-05-13 | 2011-09-07 | 唐德尧 | Running-in test diagnostic system of metro vehicle traveling part |
| CN201882114U (en) * | 2010-12-01 | 2011-06-29 | 南车洛阳机车有限公司 | Rail flaw detector car for urban light rail transit |
| CN102390408A (en) * | 2011-10-25 | 2012-03-28 | 张健 | Safety monitoring system of rail wagon |
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Address after: 100070 Beijing Fengtai District South Fourth Ring West Road 188 District 5 Building Patentee after: Beijing Railway Engineering Electromechanical Technology Research Institute Limited by Share Ltd Address before: 100070 Beijing Fengtai District South Fourth Ring West Road 188 District 5 Building Patentee before: Beijing Railway Institute of Mechanical and Electrical Engineering Co.,Ltd. |