CN110304103A - Wheel temperature-rise test device and method caused by train Wheel Rail Contact - Google Patents
Wheel temperature-rise test device and method caused by train Wheel Rail Contact Download PDFInfo
- Publication number
- CN110304103A CN110304103A CN201910619115.1A CN201910619115A CN110304103A CN 110304103 A CN110304103 A CN 110304103A CN 201910619115 A CN201910619115 A CN 201910619115A CN 110304103 A CN110304103 A CN 110304103A
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- Prior art keywords
- wheel
- temperature
- axle
- rail contact
- rise
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- 238000012360 testing method Methods 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 44
- 238000004088 simulation Methods 0.000 claims abstract description 21
- 238000002474 experimental method Methods 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000005096 rolling process Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 11
- 238000005057 refrigeration Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000003685 thermal hair damage Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K9/00—Railway vehicle profile gauges; Detecting or indicating overheating of components; Apparatus on locomotives or cars to indicate bad track sections; General design of track recording vehicles
- B61K9/04—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault
- B61K9/06—Detectors for indicating the overheating of axle bearings and the like, e.g. associated with the brake system for applying the brakes in case of a fault by detecting or indicating heat radiation from overheated axles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The present invention provides wheel temperature-rise test device and methods caused by a kind of train Wheel Rail Contact, comprising: supporting mechanism, power mechanism, wheel track temperature rise simulation mechanism, testing wheel pair；The supporting mechanism is located at the both ends of axle, for providing support to the axle；The power mechanism and the testing wheel are to being installed on the axle, and the testing wheel is to keeping vacant state；The power mechanism is for driving the testing wheel to rotation；The wheel track temperature rise simulation mechanism is mounted on the axle, for acting on the heat source of wheel tread to offer in rotary course in the testing wheel, with the temperature-rise period of simulating wheel.The present invention neatly can carry out temperature rise simulation to the running surface of wheeltrack under different operating conditions, and effectively save experimentation cost, the test efficiency for overcoming traditional experiment platform is low, the limitation of device complexity.
Description
Technical field
The present invention relates to train the field of test technology, and in particular, to wheel temperature rise test caused by train Wheel Rail Contact
Device and method.
Background technique
In bullet train operation, take turns on a critical component for being influence train operating safety, and in actual motion mistake
Cheng Zhong, wheel tread thermal damage are a main failure forms of wheel track again.When Railway wheelset is in high-speed cruising, especially tight
Anxious braking accelerates to will appear higher Wheel Rail Contact temperature rise when traction.When temperature rise reaches a certain level and when repeated action can lead
It causes wheel rail relation to deteriorate, so that wheel tread generates thermal stress, scratch, removing and fire check etc. occurs and destroy.Therefore wheel track connects
The research for touching temperature rise mechanism has great significance to operational safety and maintenance in guarantee wheel.
Currently, the heat of rail has little time to dissipate when wheel track circulating contact on the one hand since the space of wheel track experimental bench limits
Hair, can impact the temperature rise of wheel, on the other hand to Wheel Rail Contact when the research that is lack of pertinence of wheel temperature rise, and this
Preceding experimental provision structure is numerous and jumbled, at high cost.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide wheel temperature rises caused by a kind of train Wheel Rail Contact
Experimental rig and method.
In a first aspect, wheel temperature-rise test device caused by a kind of train Wheel Rail Contact provided by the invention, comprising: support
Mechanism, power mechanism, wheel track temperature rise simulation mechanism, testing wheel pair；The supporting mechanism is located at the both ends of axle, is used for described
Axle provides support；The power mechanism and the testing wheel are to being installed on the axle, and the testing wheel is to holding
Vacant state；The power mechanism is for driving the testing wheel to rotation；The wheel track temperature rise simulation mechanism is mounted on described
On axle, for acting on the heat source of wheel tread to offer in rotary course in the testing wheel, with the heating of simulating wheel
Process.
Optionally, the supporting mechanism includes: double-row roller bearing, bearing upper end cover, the support with bearing lower cover
Frame, workbench；The double-row roller bearing is placed in the axle both ends, the bearing upper end cover and the branch for having bearing lower cover
Support is placed on workbench.
Optionally, the power mechanism includes: permanent magnet synchronous motor, double reduction gear box and shaft coupling；Described two
Grade reduction gear box is provided with large helical gear and bevel pinion；The output shaft of the permanent magnet synchronous motor by the shaft coupling with
The input shaft of the bevel pinion is connected, and the bevel pinion is by engaging with the large helical gear on axle come on axle shaft
Testing wheel is to rotation.
Optionally, the wheel track temperature rise simulation mechanism includes: cooling and warming all-in-one machine, incubator and multiport laser heat
Source；The test wheel is placed in inside incubator；The multiport laser heat source is for heating wheel tread to assigned temperature.
Optionally, cambered surface and packet incubator bottom four corners are provided with equally distributed temperature sensing on the inside of the incubator
Device；The real time temperature that the temperature sensor will test feeds back to the cooling and warming all-in-one machine, so that cooling and warming one
The internal temperature that body machine adjusts the incubator is preset temperature.
Optionally, the multiport laser heat source is semiconductor laser, is placed in the incubator bottom；The multiport
Laser heat source controls the spot size and the angle of divergence of each port by combination, to change the output shape of the laser heat source,
Meet train in the form and dimension of linear running, curve negotiating and running surface of wheeltrack when through turnout passing.
Optionally, the multiport laser heat source changes the heating temperature of each port by adjusting input power.
Second aspect, the present invention also provides wheel temperature-raising experimental methods caused by a kind of train Wheel Rail Contact, using first
Wheel temperature-rise test device simulation test wheel temperature-rise effect caused by train Wheel Rail Contact described in any one of aspect.
Compared with prior art, the present invention have it is following the utility model has the advantages that
Wheel temperature-rise test device and method caused by train Wheel Rail Contact provided by the invention, can be neatly to difference
Running surface of wheeltrack progress temperature rise simulation under operating condition, effectively save experimentation cost, the test efficiency for overcoming traditional experiment platform are low
Under, the limitation of device complexity.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of supporting mechanism in the present invention；
Fig. 2 is the partial schematic diagram of motivation mechanism in the present invention；
Fig. 3 is the structural schematic diagram of wheel track temperature rise simulation mechanism in the present invention；
Fig. 4 is the structural schematic diagram of multiport laser heat source in the present invention；
Fig. 5 is three kinds of shape effect diagrams in Wheel Rail Contact region in the present invention；
Fig. 6 is the assembling schematic diagram of wheel temperature-rise test device caused by train Wheel Rail Contact provided by the invention.
In figure: 1- double-row roller bearing；2- has the support frame of bearing lower cover；3- bearing upper end cover；4- large helical gear；
5- bevel pinion；6- gear-box upper box；7- gear-box lower box；8- permanent magnet synchronous motor；9- shaft coupling；10- incubator is right
Cabinet；11- incubator left box body；12- multiport laser source；13- laser heat source port；14- cooling and warming all-in-one machine；15- vehicle
Wheel；16- axle.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, several changes and improvements can also be made.These belong to the present invention
Protection scope.
Fig. 6 is the assembling schematic diagram of wheel temperature-rise test device caused by train Wheel Rail Contact provided by the invention.Referring to
FIG. 1 to FIG. 6, the device in the embodiment of the present invention may include: supporting mechanism, power mechanism, wheel track temperature rise simulation mechanism, support
Mechanism is mounted on 16 both ends of axle in disassembled mode, makes testing wheel to horizontal hanging placement；Power mechanism includes that permanent magnetism is same
Motor 8 and double reduction gear box are walked, and makes testing wheel to realization quick rotation by shaft coupling 9；Wheel track temperature rise simulation mechanism
Temperature in the incubator for placing test wheel 15 can be maintained at preset temperature, reach extraneous air ring in simulation train operation
The purpose of border temperature further includes that multiport laser heat source heats the tyre tread in Wheel Rail Contact region, realizes wheel temperature rise
Simulation test procedure.
Specifically, Fig. 1 is the structural schematic diagram of supporting mechanism in the present invention, and supporting mechanism includes double-row roller bearing 1, band
There are support frame 2, the bearing upper end cover 3 of bearing lower cover, double-row roller bearing 1 is fitted in 16 both ends of axle, 3 side of bearing upper end cover
Edge is slightly higher, plays the role of limiting 1 or so freedom degree of double-row roller bearing, the support frame 2 with bearing lower cover is fixed on work
Make to place testing wheel to hanging, convenient for realizing quick rotation under power mechanism.
Fig. 2 is the partial schematic diagram of motivation mechanism in the present invention, as shown in Fig. 2, power mechanism includes double-reduction gear
Large helical gear 4, the bevel pinion 5 of case, gear-box upper box 6, gear-box lower box 7, permanent magnet synchronous motor 8, shaft coupling 9, forever
The output torque of magnetic-synchro motor 8 is transferred to the input shaft of bevel pinion 5 via shaft coupling 9, then by bevel pinion 5 and greatly tiltedly
The engaged transmission of gear 4, on the axle 16 that power is reached to fixed large helical gear 4, thus under the synergistic effect of supporting mechanism
Quick rotation with motor car wheel 15 further heats the tyre tread of wheel 15, reaches the simulation examination of Wheel Rail Contact wheel temperature rise
Test purpose.Wherein permanent magnet synchronous motor 8 is variable speed electric motors, particularly, and can make the revolving speed of wheel 15 is up to 380Km/h.
Fig. 3 is the structural schematic diagram of wheel track temperature rise simulation mechanism in the present invention；As shown in figure 3, wheel track temperature rise simulation mechanism
Including incubator right case 10, incubator left box body 11, cooling and warming all-in-one machine 14, multiport laser heat source 12, cooling and warming
All-in-one machine 14 can select refrigeration or heating by mode tuning, be to meet train in different regions, the external world under the different times
The needs of variation of ambient temperature；Wherein, heating mode uses electric heating, and maximum temperature is up to 60 DEG C, and refrigeration mode is using vortex
Control is cold, and reachable -60 DEG C of minimum temperature, by warm 10 interface compression of case right case of air after heating or refrigeration into incubator
Interior, incubator is sealing structure, and upper cambered surface and bottom four corners are uniformly distributed temperature sensor battle array, Neng Goudong inside incubator
The variation of state detection heat preservation the temperature inside the box, creates ideal external environment convenient for amendment error, further uses and be placed in heat preservation
The multiport laser heat source 12 in bottom portion heats the tyre tread in Wheel Rail Contact region.
Fig. 4 is the structural schematic diagram of multiport laser heat source in the present invention, as shown in figure 4, multiport laser heat source 12 is
Semiconductor laser, the port 13 of single laser heat source can independent control, and the size of hot spot, the angle of departure can be in a certain ranges
Interior adjusting；Exportable different shape is controlled by the combination to laser heat source port 13, meets train in straight-line travelling, curve
The different of Wheel Rail Contact region when by with through turnout passing require, and especially have wheel track when scratch equivalent damage to connect in wheel tread
Out-of-flatness is touched, further includes the steep temperature rise in short-term in train braking or traction starting, it can be by adjusting laser heat source port
Input power realizes the heating temperature of different levels to contact area, is illustrated in figure 4 running surface of wheeltrack in different service conditions
Under schematic shapes.The temperature rise simulation process to test wheel 15 is further completed, and will be carried out after Test Data Collecting
Processing analysis.
It is realized fastly under the power transmitting of permanent magnet synchronous motor 8 as shown in fig. 6, being placed in the test wheel 15 inside incubator
Speed rotation, it is further that the tyre tread in Wheel Rail Contact region is added using the multiport laser heat source 12 for being placed in incubator bottom
Heat, off-test after a period of time.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims, this not shadow
Ring substantive content of the invention.In the absence of conflict, the feature in embodiments herein and embodiment can any phase
Mutually combination.
Claims (8)
1. wheel temperature-rise test device caused by a kind of train Wheel Rail Contact characterized by comprising supporting mechanism, engine
Structure, wheel track temperature rise simulation mechanism, testing wheel pair；The supporting mechanism is located at the both ends of axle, for providing branch to the axle
Support；The power mechanism and the testing wheel are to being installed on the axle, and the testing wheel is to keeping vacant state；Institute
Power mechanism is stated for driving the testing wheel to rotation；The wheel track temperature rise simulation mechanism is mounted on the axle, is used for
In the testing wheel to the heat source for acting on wheel tread is provided in rotary course, with the temperature-rise period of simulating wheel.
2. wheel temperature-rise test device caused by train Wheel Rail Contact according to claim 1, which is characterized in that the branch
Support mechanism includes: double-row roller bearing, bearing upper end cover, the support frame with bearing lower cover, workbench；The double rolling
Bearing is placed in the axle both ends, and the bearing upper end cover is placed on workbench with the support with bearing lower cover.
3. wheel temperature-rise test device caused by train Wheel Rail Contact according to claim 1, which is characterized in that described dynamic
Force mechanisms include: permanent magnet synchronous motor, double reduction gear box and shaft coupling；The double reduction gear box is provided with greatly
Helical gear and bevel pinion；The output shaft of the permanent magnet synchronous motor passes through the input shaft of the shaft coupling and the bevel pinion
It is connected, the bevel pinion is by engaging with the large helical gear on axle come the testing wheel on axle shaft to rotation.
4. wheel temperature-rise test device caused by train Wheel Rail Contact according to claim 1, which is characterized in that the wheel
Rail temperature rise simulation mechanism includes: cooling and warming all-in-one machine, incubator and multiport laser heat source；The test wheel is placed in guarantor
Inside incubator；The multiport laser heat source is for heating wheel tread to assigned temperature.
5. wheel temperature-rise test device caused by train Wheel Rail Contact according to claim 4, which is characterized in that the guarantor
Cambered surface and packet incubator bottom four corners are provided with equally distributed temperature sensor on the inside of incubator；The temperature sensor will be examined
The real time temperature measured feeds back to the cooling and warming all-in-one machine, so that cooling and warming all-in-one machine adjusts the interior of the incubator
Portion's temperature is preset temperature.
6. wheel temperature-rise test device caused by train Wheel Rail Contact according to claim 4, which is characterized in that described more
Port laser heat source is semiconductor laser, is placed in the incubator bottom；The multiport laser heat source passes through combination control
The spot size and the angle of divergence of each port meet train in linear running, song to change the output shape of the laser heat source
Line passes through and the form and dimension of running surface of wheeltrack when through turnout passing.
7. wheel temperature-rise test device caused by train Wheel Rail Contact according to claim 4, which is characterized in that described more
Port laser heat source changes the heating temperature of each port by adjusting input power.
8. wheel temperature-raising experimental method caused by a kind of train Wheel Rail Contact, which is characterized in that application in claim 1-7 as appointed
Wheel temperature-rise test device simulation test wheel temperature-rise effect caused by train Wheel Rail Contact described in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619115.1A CN110304103B (en) | 2019-07-10 | 2019-07-10 | Wheel temperature rise test device and method caused by train wheel-rail contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910619115.1A CN110304103B (en) | 2019-07-10 | 2019-07-10 | Wheel temperature rise test device and method caused by train wheel-rail contact |
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| Publication Number | Publication Date |
|---|---|
| CN110304103A true CN110304103A (en) | 2019-10-08 |
| CN110304103B CN110304103B (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910619115.1A Active CN110304103B (en) | 2019-07-10 | 2019-07-10 | Wheel temperature rise test device and method caused by train wheel-rail contact |
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| Country | Link |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB969348A (en) * | 1960-09-19 | 1964-09-09 | Gen Signal Corp | Improvements in and relating to heat source detection systems |
| US5292090A (en) * | 1992-12-02 | 1994-03-08 | Meg Trans Corp. | Simulator for railroad hot wheel detector |
| EP0604389B1 (en) * | 1992-12-21 | 1998-02-25 | VAE Aktiengesellschaft | Device for the detection of unacceptably heated components or spots on moving objects |
| CN101344470A (en) * | 2008-09-01 | 2009-01-14 | 株洲硬质合金集团有限公司 | Friction wear testing machine |
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| CN202255903U (en) * | 2011-09-14 | 2012-05-30 | 株洲南车时代电气股份有限公司 | Locomotive wheel set testing apparatus |
| EP2484575A1 (en) * | 2011-02-04 | 2012-08-08 | Progress Rail Services Corporation | A detector for detecting train wheel bearing temperature |
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| CN203069366U (en) * | 2013-01-09 | 2013-07-17 | 西南交通大学 | High and low temperature fatigue test bench for railway-vehicle wheel shaft |
| CN108645635A (en) * | 2018-05-30 | 2018-10-12 | 武汉理工大学 | Wheel track testing stand based on fiber grating and its contact force measuring method |
-
2019
- 2019-07-10 CN CN201910619115.1A patent/CN110304103B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB969348A (en) * | 1960-09-19 | 1964-09-09 | Gen Signal Corp | Improvements in and relating to heat source detection systems |
| US5292090A (en) * | 1992-12-02 | 1994-03-08 | Meg Trans Corp. | Simulator for railroad hot wheel detector |
| EP0604389B1 (en) * | 1992-12-21 | 1998-02-25 | VAE Aktiengesellschaft | Device for the detection of unacceptably heated components or spots on moving objects |
| CN101344470A (en) * | 2008-09-01 | 2009-01-14 | 株洲硬质合金集团有限公司 | Friction wear testing machine |
| CN102116722A (en) * | 2009-12-31 | 2011-07-06 | 中国科学院金属研究所 | High-speed high-temperature multifunctional friction and abrasion tester |
| EP2484575A1 (en) * | 2011-02-04 | 2012-08-08 | Progress Rail Services Corporation | A detector for detecting train wheel bearing temperature |
| CN202255903U (en) * | 2011-09-14 | 2012-05-30 | 株洲南车时代电气股份有限公司 | Locomotive wheel set testing apparatus |
| CN203069366U (en) * | 2013-01-09 | 2013-07-17 | 西南交通大学 | High and low temperature fatigue test bench for railway-vehicle wheel shaft |
| CN103196765A (en) * | 2013-03-11 | 2013-07-10 | 北京矿冶研究总院 | Multifunctional high-temperature high-speed friction and wear testing machine and method |
| CN108645635A (en) * | 2018-05-30 | 2018-10-12 | 武汉理工大学 | Wheel track testing stand based on fiber grating and its contact force measuring method |
Non-Patent Citations (1)
| Title |
|---|
| 邓玉萍等: "轮对跑合试验台温度检测系统硬件设计", 《鞍山师范学院学报》 * |
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| Publication number | Publication date |
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| CN110304103B (en) | 2020-12-15 |
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Effective date of registration: 20231030 Address after: 201612 Room 501-2, Building 7, No. 518, Xinzhuan Road, Songjiang District, Shanghai Patentee after: Sitaiji Intelligent Technology (Shanghai) Co.,Ltd. Address before: 200235 Caobao Road, Xuhui District, Shanghai, No. 120-121 Patentee before: SHANGHAI INSTITUTE OF TECHNOLOGY |
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