CN111426477A - Motor rotation bearing detection system for rail side acoustic diagnosis - Google Patents
Motor rotation bearing detection system for rail side acoustic diagnosis Download PDFInfo
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- CN111426477A CN111426477A CN202010276710.2A CN202010276710A CN111426477A CN 111426477 A CN111426477 A CN 111426477A CN 202010276710 A CN202010276710 A CN 202010276710A CN 111426477 A CN111426477 A CN 111426477A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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Abstract
The invention relates to the technical field of rail-side acoustic diagnosis, in particular to a motor bearing detection system for rail-side acoustic diagnosis, which comprises: the system comprises a sound sensor array, an automatic train number identification antenna, a wheel sensor and a data acquisition host, wherein the sound sensor array is used for acquiring sound signals transferred by a motor in operation, the automatic train number identification antenna is used for reading train number and train number information of a train in operation, and the wheel sensor is used for positioning, counting axles and measuring speed of wheels of the train in operation; the data acquisition host is used for processing, analyzing, counting and storing information. The train wheel fault severity detection system adopts an array structure with not less than 12 sound sensors, enlarges the sound collection range, improves the accuracy of collected sound signals, transmits the collected information to the data collection host for comparison and analysis, improves the accuracy of fault severity judgment, and simultaneously cooperates with the automatic identification antenna and the wheel sensors to carry out accurate positioning, accurate axle counting and accurate speed measurement on the train wheels.
Description
Technical Field
The invention relates to the technical field of rail-side acoustic diagnosis, in particular to a motor bearing detection system for rail-side acoustic diagnosis.
Background
The rail-side acoustic diagnosis adopts an acoustic diagnosis technology and a computer network technology, identifies the working state of the bearing by collecting and analyzing the noise signal of the bearing in operation, can provide an effective early fault diagnosis result in the bearing, and finds the fault before the hot shaft. The system is combined with an infrared shaft temperature detection system, shaft cutting and derailing accidents can be effectively prevented, the prevention level of bearing faults is improved, and the inspection of a train inspection on a rolling bearing is gradually transited from man-machine combination to man-machine combination. The rail-side acoustic diagnosis enhances the early warning capability of the bearing, prevents the gateway from moving forwards, embodies the safety guiding idea of prevention as the main and ensures the driving safety.
The motor bearing detection system for rail-side acoustic diagnosis is a rail-side diagnosis system based on a rail-side acoustic diagnosis technology, and the main problems in the prior art are that fault bearings and fault positions cannot be accurately positioned, and the fault severity cannot be accurately judged.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the motor bearing detection system for rail-side acoustic diagnosis, which can accurately position the fault bearing and the fault part and accurately judge the severity of the fault.
In order to achieve the purpose, the invention adopts the following technical scheme:
a rail-side acoustic diagnostic motor slew detection system, the detection system comprising:
the sound sensor array comprises at least 12 sound sensors, the sound sensor arrays are symmetrically arranged on two sides of the track and are used for collecting sound signals borne by the motor in operation;
the automatic train number identification antenna is arranged in the middle of the track and used for reading train number and train number information of a running train;
the wheel sensor is fixedly arranged above the steel rail and is used for positioning wheels of a running train, counting axles and measuring speed;
and the data acquisition host is used for receiving the information acquired by the sound sensor array, the automatic vehicle number identification antenna and the wheel sensor, and processing, analyzing, counting and storing the information.
Further, the sound sensor array is arranged in a protection box, the protection box is provided with a fan and a protection door, the protection box is fixedly and symmetrically arranged on two sides of the track, the distance between the protection box and the track central line is 1.8-2.5m, and the distance between the protection box and the track central line is preferably 2.027 m.
Further, sound sensor symmetric distribution is in orbital both sides, sound sensor is provided with in orbital one side and is no less than 6, sound sensor equidistant parallel arrangement, sound sensor bears towards the motor commentaries on classics.
Furthermore, the train number automatic identification antenna reads train number and train number information by transmitting microwave signals and receiving modulated signals reflected by the labels.
Furthermore, the wheel sensor is fixed above the steel rail through a clamp, and the wheel sensor is provided with a self-starting module.
Further, the number of the wheel sensors is not less than 3.
Further, the sound signals collected by the sound sensor array and transmitted by the motor comprise a motor transmission sound frequency signal and a motor transmission sound amplitude signal.
Furthermore, the detection system also comprises a memory, the memory is used for storing the data received by the data acquisition host and the data processed by the data acquisition host, and the data retention time on the memory is not less than 1 month.
Furthermore, the detection system compares the collected sound frequency signals of the motor bearing during the running of the train with the sound frequency signals of the motor bearing during the running of the motor bearing of the non-fault train to determine the position of the motor bearing with the fault, and compares the collected sound amplitude signals of the motor bearing during the running of the train with the sound amplitude signals of the motor bearing during the running of the motor bearing of the non-fault train to judge the severity of the fault.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention adopts not less than 12 sound sensors of the sound sensor array to collect the sound signals transferred by the motor, enlarges the sound collection range, improves the accuracy of the collected sound signals, transmits the collected information to the data collection host for comparison and analysis, and improves the accuracy of the judgment of the severity of the fault;
(2) the train wheel automatic identification antenna is adopted to identify train number and train number information of a train, and meanwhile, a wheel sensor fixedly arranged above a steel rail is matched to perform accurate positioning, accurate axle counting and accurate speed measurement on the train wheels, so that a fault train number, a fault bearing and a fault position can be accurately positioned.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
description of the drawings: 1 an acoustic sensor array; 2. the vehicle number automatic identification antenna; 3. a wheel sensor; 4. a data acquisition host; 5. a steel rail; 6. a train; 7. a track; 8. a motor is rotatably supported; 9. the track centerline.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
A rail-side acoustic diagnostic motor slew detection system, the detection system comprising:
the sound sensor array 1 comprises at least 12 sound sensors, the sound sensor array 1 is symmetrically arranged on two sides of the track 7, and the sound sensor array 1 is used for collecting sound signals of the motor bearing 8 in operation;
the automatic train number identification antenna 2 is arranged in the middle of the track 7, and the automatic train number identification antenna 2 is used for reading train number and train number information of a train 6 in operation;
the wheel sensor 3 is fixedly arranged above the steel rail 5, and the wheel sensor 3 is used for wheel positioning, axle counting and speed measurement of a running train 6;
and the data acquisition host 4 is used for receiving the information acquired by the sound sensor array 1, the automatic vehicle number identification antenna 2 and the wheel sensor 3, and processing, analyzing, counting and storing the information.
Preferably, the sound sensor array 1 is arranged in a protection box, the protection box is provided with a fan and a protection door, the protection box is fixedly and symmetrically arranged on two sides of the track 7, the distance between the protection box and the track central line 9 is 1.8-2.5m, and the distance between the protection box and the track central line 9 is preferably 2.027 m.
Preferably, sound sensor symmetric distribution is in the both sides of track 7, sound sensor is provided with in one side of track 7 and is no less than 6, sound sensor equidistant parallel arrangement, sound sensor bears 8 towards the motor commentaries on classics.
Preferably, the automatic train number identification antenna 2 reads the train number and the train number information of the train 6 by transmitting a microwave signal and receiving a modulated signal reflected by the tag.
Preferably, the wheel sensor 3 is fixed above the steel rail 5 through a clamp, and the wheel sensor 3 is provided with a self-starting module.
Preferably, the number of the wheel sensors 3 is not less than 3.
Preferably, the sound signal of the motor rotor 8 collected by the sound sensor array 1 includes a motor rotor 8 sound frequency signal and a motor rotor 8 sound amplitude signal.
Preferably, the detection system further comprises a memory, the memory is used for storing the data received by the data acquisition host 4 and the data processed by the data acquisition host 4, and the data retention time on the memory is not less than 1 month.
Preferably, the detection system compares the collected sound frequency signal of the motor bearing 8 when the train 6 runs with the sound frequency signal of the motor bearing 8 when the fault-free train 6 runs, determines the fault position of the motor bearing 8, and compares the collected sound amplitude signal of the motor bearing 8 when the train 6 runs with the collected sound amplitude signal of the motor bearing 8 when the motor bearing 8 of the fault-free train 6 runs to judge the fault severity.
When the motor bearing 8 is not in fault or defect-free, the vibration displayed when the motor bearing 8 rotates is mainly caused by the smoothness and waviness of a rotating surface, so that the sound emitted when the motor bearing operates is normal; when the rolling surface of the machine bearing 8 is defective, a rapid impact vibration, i.e., an abnormal sound, is generated at the defective portion due to the impact phenomenon. Common faults are: cracks, peels, pits, scratches, dents, scratches, etc. The frequencies of abnormal sounds emitted by different parts of the motor bearing 8 are different due to different rotating speeds, and the data acquisition host 4 can identify the part where the fault occurs according to the acoustic frequency characteristics and determine the fault type; the more serious the motor bearing 8 fault is, the larger the amplitude of the abnormal sound is correspondingly, namely the amplitude of the abnormal sound reflects the severity of the fault, and the data acquisition host 4 determines the severity of the damage according to the amplitude of the abnormal sound.
The embodiments show that the invention can accurately position the fault bearing and fault position, accurately judge the fault severity and is suitable for large-scale application.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and variations that can be made by the present invention in the specification or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (9)
1. A rail-side acoustic diagnostic motor slew detection system, the detection system comprising:
the sound sensor array comprises at least 12 sound sensors, the sound sensor arrays are symmetrically arranged on two sides of the track and are used for collecting sound signals borne by the motor in operation;
the automatic train number identification antenna is arranged in the middle of the track and used for reading train number and train number information of a running train;
the wheel sensor is fixedly arranged above the steel rail and is used for positioning wheels of a running train, counting axles and measuring speed;
and the data acquisition host is used for receiving the information acquired by the sound sensor array, the automatic vehicle number identification antenna and the wheel sensor, and processing, analyzing, counting and storing the information.
2. The system according to claim 1, wherein the acoustic sensor array is disposed in a protection box, the protection box is provided with a fan and a protection door, the protection box is fixedly and symmetrically disposed on two sides of the track, the distance between the protection box and the track centerline is 1.8-2.5m, and the distance between the protection box and the track centerline is preferably 2.027 m.
3. The system of claim 1, wherein the sound sensors are symmetrically distributed on two sides of the track, at least 6 sound sensors are arranged on one side of the track, the sound sensors are arranged in parallel at equal intervals, and the sound sensors face the motor.
4. The system according to claim 1, wherein the automatic train number identification antenna reads train number and number information by transmitting microwave signals and receiving modulated signals reflected by the tag.
5. The system according to claim 1, wherein the wheel sensor is fixed above the rail by a clamp, and the wheel sensor is provided with a self-starting module.
6. The system of claim 1, wherein there are no fewer than 3 wheel sensors.
7. The system of claim 1, wherein the acoustic signature of the electromechanical transducer collected by the acoustic sensor array comprises an electromechanical transducer acoustic frequency signal and an electromechanical transducer acoustic amplitude signal.
8. The system according to claim 1, further comprising a memory for storing the data received by the data acquisition host and the data processed by the data acquisition host, wherein the retention time of the data in the memory is not less than 1 month.
9. The system of claim 1, wherein the detection system compares the collected sound frequency signals of the motor bearing during train operation with the sound frequency signals of the motor bearing during non-fault train operation to determine the location of the motor bearing fault, and compares the collected sound amplitude signals of the motor bearing during train operation with the sound amplitude signals of the motor bearing during non-fault train operation to determine the severity of the fault.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010276710.2A CN111426477A (en) | 2020-04-09 | 2020-04-09 | Motor rotation bearing detection system for rail side acoustic diagnosis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010276710.2A CN111426477A (en) | 2020-04-09 | 2020-04-09 | Motor rotation bearing detection system for rail side acoustic diagnosis |
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| CN111426477A true CN111426477A (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010276710.2A Pending CN111426477A (en) | 2020-04-09 | 2020-04-09 | Motor rotation bearing detection system for rail side acoustic diagnosis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112433004A (en) * | 2020-12-02 | 2021-03-02 | 长安大学 | Wheel rail damage monitoring method and system |
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| CN201017329Y (en) * | 2006-11-15 | 2008-02-06 | 深圳市远望谷信息技术股份有限公司 | Ground reading apparatus of automatic recognizing equipment |
| CN105258785A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第三研究所 | Acoustic monitoring station, wheel detection method and train bearing fault passive acoustic diagnosis system |
| CN105760802A (en) * | 2016-05-13 | 2016-07-13 | 郑州智辆电子科技有限公司 | Device capable of identifying train number and conducting location tracking and operating method thereof |
| CN107554558A (en) * | 2017-08-31 | 2018-01-09 | 哈尔滨威克科技有限公司 | Running mechanism of train portion safety detection prewarning apparatus |
| CN110672341A (en) * | 2019-11-11 | 2020-01-10 | 成都主导科技有限责任公司 | Train running part detection system arranged on track |
-
2020
- 2020-04-09 CN CN202010276710.2A patent/CN111426477A/en active Pending
Patent Citations (5)
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| CN201017329Y (en) * | 2006-11-15 | 2008-02-06 | 深圳市远望谷信息技术股份有限公司 | Ground reading apparatus of automatic recognizing equipment |
| CN105258785A (en) * | 2015-10-20 | 2016-01-20 | 中国电子科技集团公司第三研究所 | Acoustic monitoring station, wheel detection method and train bearing fault passive acoustic diagnosis system |
| CN105760802A (en) * | 2016-05-13 | 2016-07-13 | 郑州智辆电子科技有限公司 | Device capable of identifying train number and conducting location tracking and operating method thereof |
| CN107554558A (en) * | 2017-08-31 | 2018-01-09 | 哈尔滨威克科技有限公司 | Running mechanism of train portion safety detection prewarning apparatus |
| CN110672341A (en) * | 2019-11-11 | 2020-01-10 | 成都主导科技有限责任公司 | Train running part detection system arranged on track |
Non-Patent Citations (2)
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| 赵长波、陈雷: "《铁路货车安全监测与应用概论》", 30 April 2010 * |
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Cited By (1)
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| CN112433004A (en) * | 2020-12-02 | 2021-03-02 | 长安大学 | Wheel rail damage monitoring method and system |
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Application publication date: 20200717 |