CN211262733U - Five-layer comprehensive detection device for running gear of motor train unit - Google Patents
Five-layer comprehensive detection device for running gear of motor train unit Download PDFInfo
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- CN211262733U CN211262733U CN201921576833.7U CN201921576833U CN211262733U CN 211262733 U CN211262733 U CN 211262733U CN 201921576833 U CN201921576833 U CN 201921576833U CN 211262733 U CN211262733 U CN 211262733U
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Abstract
The utility model discloses a five layers of comprehensive testing device of EMUs walking portion divide into five levels, including on-vehicle detection, positive line detection, daily dynamic detection, regular on-line measuring and the detection of regularly taking off a round. The running gear diagnostic device is arranged at each level to guarantee the safety and the reliability of the motor train unit, so that the safe and reliable running of the running gear of the high-speed rail motor train unit is realized.
Description
Technical Field
The utility model belongs to vehicle maintenance detection area, concretely relates to five layers of comprehensive detection devices of line portion are walked to EMUs.
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.
At present, nondestructive testing of the running gear is mainly carried out by utilizing sound, light, magnetism and electric characteristics, and detecting defects and non-uniformity of key parts of the running gear by means of 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 information such as size, position, property, quantity and the like is given.
The detection methods have different emphasis points and need to be combined for use, so that the operation safety of key parts of the train is ensured. In order to improve the reliability of the detection result, the most suitable combination of nondestructive detection methods needs to be selected according to the material of the equipment, the manufacturing method, the working medium, the use condition and the failure mode, and the type, shape, position and orientation of the defects which can be generated are predicted.
At present, in mainly developed countries abroad, a multi-level wheel set running part guarantee system and equipment are gradually adopted for wheel set detection (see the following table).
The comprehensive detection of the running gear of the railway train in China currently adopts three-layer three-dimensional flaw detection solutions of daily dynamic detection, regular on-line detection and regular wheel-dropping detection. Although the detection system plays a great role, with the development and application of high-speed railways, new problems are continuously generated, mainly comprising: 1) the out-of-roundness detection problem is prominent; 2) abnormal noise of the wheel track; 3) instability of the bogie; 4) the problem of bearing failure is prominent; 5) the detection capability of the surface defects of the tread needs to be reinforced; 6) high-speed safety early warning of derailment tendency, derailment problem and the like.
SUMMERY OF THE UTILITY MODEL
At least one in defect or improvement demand more than prior art, the utility model provides a five layers of comprehensive testing device of EMUs walking portion divide into five levels, including on-vehicle detection, positive line detection, daily dynamic verification, regular on-line measuring and the detection of regularly falling to take turns. Through set up the safe and reliable of walking the way diagnostic device and ensuring EMUs at every level to realize the safe and reliable operation of high-speed railway EMUs walking way, the utility model discloses equally applicable in other rail transit vehicle fields, for example subway vehicle.
In order to achieve the above object, according to the utility model discloses an aspect provides a five layers of comprehensive testing device of walking capable portion of EMUs, wherein: the device comprises a vehicle-mounted detection device, a main line detection device, a daily dynamic detection device, a regular online detection device and a regular wheel falling detection device;
the vehicle-mounted detection device comprises a vehicle-mounted vibration abnormal sound detection device arranged on the motor train unit vehicle and is used for detecting out-of-roundness of wheels, tread defects of the wheels and bearing faults;
the on-line detection device comprises a motor train unit bearing state monitoring device TADS and a motor train unit fault dynamic detection device TEDS which are arranged at the positions of the motor train unit running-out and running-in positions to detect the outline dimensions of wheels, and is used for dynamically detecting the running faults of the motor train unit bearing and the train bottom;
the daily dynamic detection device is used for performing dynamic detection on the daily entering section or the entering section of the motor train unit;
the regular online detection device is used for carrying out regular online wheel-falling-free detection on key components of the motor train unit;
the regular wheel falling detection device is used for carrying out regular wheel falling detection on key components of the motor train unit.
Preferably, the daily dynamic detection device comprises a wheel pair dynamic detection system, a pantograph detection system, a vehicle bottom image monitoring system, a fan and a brake pad dynamic detection system which are arranged on a bullet train section or a section entering line, and is used for performing dynamic detection on the daily section entering or entering of the motor train unit.
Preferably, the regular online detection device comprises an in-garage comprehensive maintenance platform, a movable rim and spoke flaw detection device, a solid/hollow shaft flaw detection device and a portable rim and spoke flaw detection device which are arranged in a motor train unit application inspection warehouse and used for regular online wheel drop-free detection of key components of the motor train unit.
Preferably, the device for detecting the periodical wheel drop comprises fixed rim spoke flaw detection equipment and fixed hollow shaft flaw detection equipment which are arranged in a high-grade motor train unit garage, and is used for detecting the periodical wheel drop of key parts of the motor train unit.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, has following beneficial effect:
1. the utility model discloses a five layers of comprehensive detection device of line portion are walked to EMUs, the detection of walking the line portion of EMUs has carried out reasonable layering, carries out effective combination to walking line portion core part diagnostic device at every level to guarantee EMUs walk the safe and reliable of line portion, thereby realize high-speed railway EMUs safe and reliable operation.
2. The utility model discloses a five layers of comprehensive detection device of line portion are walked to EMUs can effectively solve the well core part that walks line portion and include: out-of-roundness detection problems; abnormal noise of the wheel track; instability of the bogie; the problem of bearing failure is prominent; the detection capability of the surface defects of the tread needs to be reinforced; high-speed safety early warning, such as derailment tendency, disconnection problem and the like, which newly appear in the traditional detection system, thereby meeting the detection requirement.
Drawings
FIG. 1 is a schematic overall level diagram of a five-layer comprehensive detection device for a running gear of a motor train unit according to the present invention;
FIG. 2 is a schematic view of the five-layer comprehensive detection device for the running gear of the motor train unit according to the present invention;
FIG. 3 is a schematic front line detection diagram of the five-layer comprehensive detection device for the running gear of the motor train unit of the present invention;
FIG. 4 is a schematic diagram of the daily dynamic detection of the five-layer comprehensive detection device for the running gear of the motor train unit of the present invention;
FIG. 5 is a schematic diagram of the periodic on-line detection of the five-layer comprehensive detection device for the running gear of the motor train unit of the present invention;
FIG. 6 is a schematic view of the periodic wheel-falling detection of the five-layer comprehensive detection device for the running gear of the motor train unit of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in 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. Furthermore, the technical features mentioned in the embodiments of the present invention described below can 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 the following embodiments.
As a preferred embodiment of the present invention, as shown in fig. 1-6, the present invention provides a five-layer comprehensive detection device for a running gear of a motor train unit, wherein: the device comprises a vehicle-mounted detection device, a main line detection device, a daily dynamic detection device, a regular online detection device and a regular wheel falling detection device.
As shown in fig. 2, the vehicle-mounted detection device comprises a vehicle-mounted vibration abnormal sound detection device arranged on a motor train unit vehicle, and is used for detecting wheel out-of-roundness, wheel tread defects and bearing faults. Specifically, sensors 11 are arranged on the wheel pair and the bearing, a bus junction box 12 collects data of the sensors and accesses the data to a detection host 13, and the detection host 13 outputs a detection result to a data transmission device 14 in combination with a speed signal of a speed measuring unit 15 and transmits the detection result back to a master control center.
As shown in fig. 3, the on-line detection device includes a motor train unit bearing state monitoring device TADS and a motor train unit fault dynamic detection device TEDS which are arranged at positions of the motor train unit exit and entry positions to detect the overall dimensions of the wheels, and is used for dynamically detecting the motor train unit bearing and underbody operation faults.
As shown in fig. 4, the daily dynamic detection device includes a wheel pair dynamic detection system 31, a pantograph detection system 32, a vehicle bottom image monitoring system 33, and a fan and brake pad dynamic detection system 34, which are arranged on a bullet train section or a section entering line, and are used for performing dynamic detection on the daily entering section or section entering of the motor train unit.
As shown in fig. 5, the regular online detection device includes an in-garage comprehensive maintenance platform 41, a mobile rim and spoke flaw detection device 42, a solid/hollow shaft flaw detection device 43, and a portable rim and spoke flaw detection device 44, which are arranged in a motor train unit application inspection garage, and is used for performing regular online wheel drop-free detection on key components of a motor train unit.
As shown in fig. 6, the device for detecting the periodical wheel drop comprises a fixed rim spoke flaw detection device 51 and a fixed hollow shaft flaw detection device 52 which are arranged in a high-grade motor train unit garage, and is used for detecting the periodical wheel drop of key parts of the motor train unit.
The five layers of systems interact with each other, and the safety and the reliability of key parts of the motor train unit are jointly guaranteed.
The utility model discloses a five layers of comprehensive detection device of line portion are walked to EMUs, the detection of walking the line portion of EMUs has carried out reasonable layering, carries out effective combination to walking line portion core part diagnostic device at every level to guarantee EMUs walk the safe and reliable of line portion, thereby realize high-speed railway EMUs safe and reliable operation.
The utility model discloses a five layers of comprehensive detection device of line portion are walked to EMUs can effectively solve the well core part that walks line portion and include: out-of-roundness detection problems; abnormal noise of the wheel track; instability of the bogie; the problem of bearing failure is prominent; the detection capability of the surface defects of the tread needs to be reinforced; high-speed safety early warning, such as derailment tendency, disconnection problem and the like, which newly appear in the traditional detection system, thereby meeting the detection requirement.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A five-layer comprehensive detection device for a running gear of a motor train unit is characterized in that: the device comprises a vehicle-mounted detection device, a main line detection device, a daily dynamic detection device, a regular online detection device and a regular wheel falling detection device;
the vehicle-mounted detection device comprises a vehicle-mounted vibration abnormal sound detection device arranged on the motor train unit vehicle and is used for detecting out-of-roundness of wheels, tread defects of the wheels and bearing faults;
the on-line detection device comprises a motor train unit bearing state monitoring device TADS and a motor train unit fault dynamic detection device TEDS which are arranged at the positions of the motor train unit running-out and running-in positions to detect the outline dimensions of wheels, and is used for dynamically detecting the running faults of the motor train unit bearing and the train bottom;
the daily dynamic detection device is used for performing dynamic detection on the daily entering section or the entering section of the motor train unit;
the regular online detection device is used for carrying out regular online wheel-falling-free detection on key components of the motor train unit;
the regular wheel falling detection device is used for carrying out regular wheel falling detection on key components of the motor train unit.
2. The five-layer comprehensive detection device for the running gear of the motor train unit according to claim 1, characterized in that:
the daily dynamic detection device comprises a wheel pair dynamic detection system (31), a pantograph detection system (32), a vehicle bottom image monitoring system (33), a fan and brake pad dynamic detection system (34) which are arranged on a bullet train section or section entering line, and is used for performing dynamic detection on the daily entering section or entering section of the motor train unit.
3. The five-layer comprehensive detection device for the running gear of the motor train unit according to claim 1, characterized in that:
the regular online detection device comprises an in-garage comprehensive maintenance platform (41), a movable rim and spoke flaw detection device (42), a solid/hollow shaft flaw detection device (43) and a portable rim and spoke flaw detection device (44) which are arranged in an inspection garage of a motor train unit application institute, and is used for regular online wheel drop-free detection of key components of the motor train unit.
4. The five-layer comprehensive detection device for the running gear of the motor train unit according to claim 1, characterized in that:
the device for detecting the wheel drop regularly comprises fixed rim spoke flaw detection equipment (51) and fixed hollow shaft flaw detection equipment (52) which are arranged in a high-grade garage of the motor train unit, and is used for detecting the wheel drop regularly of key parts of the motor train unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921576833.7U CN211262733U (en) | 2019-09-19 | 2019-09-19 | Five-layer comprehensive detection device for running gear of motor train unit |
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| CN201921576833.7U CN211262733U (en) | 2019-09-19 | 2019-09-19 | Five-layer comprehensive detection device for running gear of motor train unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179858A (en) * | 2021-09-16 | 2022-03-15 | 中国国家铁路集团有限公司 | Wheel turning method and device based on wheel health state |
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- 2019-09-19 CN CN201921576833.7U patent/CN211262733U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114179858A (en) * | 2021-09-16 | 2022-03-15 | 中国国家铁路集团有限公司 | Wheel turning method and device based on wheel health state |
| CN114179858B (en) * | 2021-09-16 | 2023-12-05 | 中国国家铁路集团有限公司 | Wheel turning method and device based on wheel health state |
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