CN104267100B - Dynamic test method for rail flaw detection - Google Patents
Dynamic test method for rail flaw detection Download PDFInfo
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- CN104267100B CN104267100B CN201410577738.4A CN201410577738A CN104267100B CN 104267100 B CN104267100 B CN 104267100B CN 201410577738 A CN201410577738 A CN 201410577738A CN 104267100 B CN104267100 B CN 104267100B
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- saw kerf
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Abstract
The invention discloses a dynamic test method for rail flaw detection. The dynamic test method comprises the following steps: a flaw detection device is arranged at the upper part of a supporting frame; a sliding platform is movably arranged at the bottom of the supporting frame in the length direction, wherein the sliding platform is located under the flaw detection device; a rail test block is arranged on the sliding platform, wherein the rail test block is located under the flaw detection device, can move opposite to the flaw detection device in the length direction of the supporting frame under the driving of the sliding platform, and is used for providing various damage simulations of a rail; an auxiliary device is arranged on the supporting frame, wherein the auxiliary device further comprises a coupling water spraying device that provides coupling water for a contact surface between the rail test block and a detection wheel of the flaw detection device. According to the invention, the dynamic test method for rail flaw detection can dynamically provide an all-around damage test environment for the rail flaw detection work, and is simple to operate, flexible in arrangement, small in environmental impact, and strong in adaptability.
Description
Technical field
The present invention relates to inspection technique field, especially relate to a kind of rail examination being applied to railway engineering field dynamic
Test method.
Background technology
Ultrasonic examination is a kind of most widely used flaw detection mode of detection technique field, the exploitation of non-destructive detecting device and examination
Test, all be unable to do without detected object.The major function of ultrasonic rail flaw detection operation is exactly to detect the wound that rail itself exists
Damage, for example：The core wound in rail head of rail portion, vertical splitting, the Crack In Bolt Hole in web of the rail portion, flange of rail selenodont trauma, and various
Trauma caused by welding, fatigue etc..Therefore, how to concentrate, these trauma detection objects completely, are comprehensively provided, be ultrasound wave
An important ring of Non-Destructive Testing.Domestic have a lot of mould producers to provide multiple trauma test blocks, but these trauma test blocks have one
Individual common feature is it is simply that all can only carry out static test, and is not provided that dynamic test.At present, it is applied to railway engineering neck
The ultrasonic test equipment in domain mainly has：Crack detector and rail-defect detector car.Wherein, rail-defect detector car flaw detection operation uses 6
Visit the wheel sensor detection mode of wheel 30 passages, edge is each perpendicular to the both sides of rail-defect detector car traffic direction on framework composition
It is arranged side by side 3 and visit wheel.At home, steel rail ultrasonic flaw detecting debugging and the Main Means demarcated are exactly to build a rail defects and failures
Test wire, simulates various rail defects and failureses on rail defects and failures test wire.Wherein, in the prior art, skill related to the present invention
Art scheme master has rail defects and failures calibration line and disk rail assay device.
(1) rail defects and failures calibration line mode is using one section of relatively straight railway being not frequently used on non-main track
Line, it is made up of accelerating sections and test section two parts.Wherein, at 4～6 kilometers, test section adopts 10 to the distance of accelerating sections
The rail composition of 12.5 meters of prefabricated various traumas.It is mainly characterized by：Using the test mode of " car dynamic rail is motionless ", close to true
Real test environment, has accelerating sections, and test interval is longer, suitable high speed test and its special calibrating.Its shortcoming is：Need special
Circuit, requires to line length, and rail replacement is inconvenient, not using being integrated in laboratory.Additionally, the cost of which is very
Height, using easily being affected by railway dispatching.
(2) disk rail assay device is using a ring device, and device edge is the rail of simulation, arranges thereon
Have various traumas, during test device along central rotation, as shown in Figure 1.Disk rail assay device include annular rail 201,
Rail fixed support 202, driving motor 203, speed reduction gearing 204, ring protection wall 205, coupling (operating) water nozzle 206, spy wheel
Unit 207, drainage arrangement 208, coupling water source 209 and power supply and protection device 210.It is mainly characterized by：Using " rail motor-car is not
Dynamic " test mode, certain speed can be reached, a certain amount of trauma also can be set thereon.Its shortcoming is：Circular rail is with reality
The rail that border uses has larger difference, is easily subject to constraint.Due to circular rail can not be designed to very big, actually used not
There may be the rail of such small curve radius, this damage set-up mode has larger gap with actually detected trauma object,
And also it is unfavorable for testing equipment is installed.
Therefore, exploitation one kind can dynamically provide omnibearing trauma experimental enviroment for rail examination operation, grasp simultaneously
Make easy, setting flexibly, little, strong adaptability, rail examination dynamic test method with low cost affected by environment become current
Problem demanding prompt solution.
Content of the invention
In view of this, it is an object of the invention to provide a kind of rail examination dynamic test method, can be rail examination
Operation dynamically provides omnibearing trauma experimental enviroment.
In order to realize foregoing invention purpose, the technology that the present invention specifically provides a kind of rail examination dynamic test method is real
Existing scheme, rail examination dynamic test method, comprise the following steps：
On the top of support frame, failure detector is set；
Sliding platform is movably set along its length in the bottom of described support frame, described sliding platform is located at institute
State the lower section of failure detector；
Rail test block is arranged on described sliding platform, described rail test block is located at the lower section of described failure detector, described
Rail test block under the drive of described sliding platform, along the length direction of described support frame, and can fill with respect to described flaw detection
Put movement, described rail test block is used for providing the various trauma simulations of rail；
Auxiliary device is arranged on described support frame, described auxiliary device further includes to couple water jet device, institute
State coupling water jet device and couple water for described rail test block with the contact surface offer visited between wheel of described failure detector.
Preferably, described sliding platform includes support groove, slide rail and spring backstop.In described support frame bottom along length
The side setting slide rail in direction, arranges fixing chute in the bottom of described support groove, and described support groove passes through fixing chute and can live
It is fixed on described slide rail dynamicly, described rail test block is fixed in described support groove.When carrying out rail examination dynamic test
When, described support groove can move back and forth along described slide rail, so that the rail test block in described support groove is with respect to described spy
Hinder device to move back and forth.Described spring backstop is set at described under(-)chassiss two ends along its length, described spring backstop is same
When be located at the two ends of described slide rail, the movement of described support groove is carried out spacing.
Preferably, handrail is set in any one or both ends of described support groove, when carrying out rail examination dynamic test, behaviour
Make personnel and promote described support groove back and forth to transport along described slide rail by being arranged on the handrail of any one or both ends of described support groove
Dynamic, so that the rail test block in described support groove moves back and forth with respect to described failure detector.
Preferably, velocity measuring device, described velocity measuring device bag are arranged on the under(-)chassiss of described support frame
Include tachometer disk, change-speed gearing, the fixed seat that tests the speed and speed encoder.The sidepiece of described tachometer disk and described support groove is movably
Contact, the movement of described support groove is converted to the rotation of described tachometer disk.Described change-speed gearing is movable with described tachometer disk
Ground contact, the rotation of described tachometer disk is converted to the rotation of itself, and described speed encoder is by the rotation of described change-speed gearing
Change into velocity pulse, and externally export the translational speed signal of described support groove, described failure detector externally exports dynamic
Rail defects and failures echo data.
Preferably, methods described is applied to the rail examination dynamic test of 0～12km/h inspection speed.
Preferably, described rail examination dynamic test method also includes the manufacturing process of described rail test block, this process bag
Bolt hole saw kerf, the rail for simulating web of the rail regio defect being provided for simulating Crack In Bolt Hole is included on described rail test block
Waist cross-drilled hole, for simulating the rail head cross-drilled hole of rail head regio defect, any in the flange of rail saw kerf of flange of rail position crackle for simulating
One or more traumas.
Preferably, described rail test block includes the first test block, and the manufacturing process of described rail test block further includes at institute
State the bolt hole saw kerf being provided for simulating Crack In Bolt Hole in the first test block, and for simulating the web of the rail of web of the rail regio defect
Cross-drilled hole.
Preferably, described rail test block includes the second test block, and the manufacturing process of described rail test block further includes at institute
Bolt hole saw kerf, the rail head horizontal stroke for simulating rail head regio defect being provided for simulating Crack In Bolt Hole is stated on the second test block
Hole, and for simulating the flange of rail saw kerf of flange of rail position crackle.
Preferably, described rail test block includes the 3rd test block, and the manufacturing process of described rail test block further includes at institute
Bolt hole saw kerf, the web of the rail horizontal stroke for simulating web of the rail regio defect being provided for simulating Crack In Bolt Hole is stated on the 3rd test block
Hole, the rail head cross-drilled hole for simulating rail head regio defect, and for simulating the flange of rail saw kerf of flange of rail position crackle.
Preferably, methods described is applied to the rail examination dynamic test of 0～6km/h inspection speed.
By implementing the technical scheme of the rail examination dynamic test method that the invention described above provides, there is following technology effect
Really：
(1) rail examination dynamic test method of the present invention can dynamically provide omnibearing trauma for rail examination operation
Experimental enviroment, using the teaching of the invention it is possible to provide the rail defects and failures sample basically identical with special circuit, meets the needs of practical situation in all directions；
(2) rail examination dynamic test method of the present invention is capable of the test mode of " rail motor-car is motionless ", rail test block
Fixed form flexibly, can in any combination, arbitrarily change detection object；
(3) the assay device perfect in shape and function that rail examination dynamic testing equipment dynamic approach of the present invention is utilized is reliable, body
Long-pending little, lightweight, easy for installation, less, easy through engineering approaches affected by environment, little by artificial restraining factors, outdoor can be built in
Interior can be built in, suitable experimental study is used.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing having required use in technology description is briefly described.It should be evident that drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable
Other embodiments are obtained according to these accompanying drawings.
Fig. 1 is the structure composition schematic diagram of prior art disk rail assay device；
Fig. 2 is that a kind of structure composition of specific embodiment of rail examination dynamic testing equipment in the inventive method is illustrated
Figure；
Fig. 3 is the structure of support frame in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Composition schematic diagram；
Fig. 4 is the structure of sliding platform in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Composition schematic diagram；
Fig. 5 is the structure of rail test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Composition schematic diagram；
Fig. 6 is a kind of specific embodiment of rail examination dynamic testing equipment medium velocity measurement apparatus in the inventive method
Structural representation；
Fig. 7 is coupling water jet device in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Structural representation；
Fig. 8 is improved rail anchor assembly in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Cross-sectional view；
Fig. 9 is the structure visiting wheel apparatus in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Composition schematic diagram；
Figure 10 is that a kind of cross-section structure of specific embodiment of rail examination dynamic testing equipment in the inventive method is illustrated
Figure；
Figure 11 is that a kind of operation principle of specific embodiment of rail examination dynamic testing equipment in the inventive method is illustrated
Figure；
Figure 12 is the cuing open of rail test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Face structural representation；
Figure 13 is the wound of the first test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Damage structure schematic diagram；
Figure 14 is the wound of the second test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Damage structure schematic diagram；
Figure 15 is the wound of the 3rd test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Damage structure schematic diagram；
Figure 16 is the wound of the first test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Damage cross-sectional view；
Figure 17 is the second test block trauma in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Cross-sectional view in overlook direction；
Figure 18 is the wound of the second test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Damage cross-sectional view；
Figure 19 is the wound of the 3rd test block in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
Damage cross-sectional view；
Figure 20 is the rail test block flange of rail in a kind of specific embodiment of rail examination dynamic testing equipment in the inventive method
The cross-sectional view of trauma；
Figure 21 is the part section structural representation of flange of rail trauma in Figure 20；
In figure：1- support frame, 2- sliding platform, 3- rail test block, 4- auxiliary device, 5- visits wheel apparatus, 11- bottom frame
Frame, 12- Adjustable supporter, 13- fixed seat, 14- height adjusting screw rod, 21- support groove, 22- slide rail, 23- spring backstop, 24-
Handrail, 25- improved rail anchor assembly, 26- fixes chute, 30- bolt hole, 31- first test block, 32- second test block, and 33- the 3rd tries
Block, 34- flange of rail trauma, 41- velocity measuring device, 411- tachometer disk, 412- change-speed gearing, 413- tests the speed fixed seat, 414- speed
Degree encoder, 42- couples water jet device, 421- flexibility spray boom, 422- ball valve, 423- nozzle, 424- water knockout drum, and 51- visits wheel,
52- framework forms, 201- annular rail, 202- rail fixed support, 203- driving motor, 204- speed reduction gearing, 205-
Ring protection wall, 206- couples (operating) water nozzle, and 207- visits wheel unit, 208- drainage arrangement, and 209- couples water source, and 210- powers and protects
Protection unit.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, clear, complete description is carried out to the technical scheme in the embodiment of the present invention.Obviously, described embodiment is only
It is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the common skill in this area
All other embodiment that art personnel are obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
As shown in accompanying drawing 2 is to accompanying drawing 21, give rail examination dynamic test method of the present invention, and based on the method
The specific embodiment of rail examination dynamic testing equipment, makees furtherly to the present invention with specific embodiment below in conjunction with the accompanying drawings
Bright.
Embodiment 1：
As shown in Figure 2, the specific embodiment of the rail examination dynamic testing equipment based on the inventive method, including：
For carrying the support frame 1 of failure detector 5, failure detector 5 is arranged on the top of support frame 1；
It is movably disposed in the sliding platform 2 of support frame 1 bottom, sliding platform 2 along support frame 1 length direction
Lower section in failure detector 5；
It is arranged on the rail test block 3 on sliding platform 2, rail test block 3 is located at the lower section of failure detector 5, rail test block 3 energy
Under the drive of sliding platform 2, along the length direction of support frame 1 and mobile with respect to failure detector 5, rail test block 3 is used for
The various trauma simulations of rail are provided；
Auxiliary device 4, including coupling water jet device 42, coupling water jet device 42 is rail test block 3 and failure detector 5
Visit wheel 52 between contact surface provide coupling water.
As shown in Figure 3, support frame 1 further includes：Under(-)chassiss 11, Adjustable supporter 12, fixed seat 13 and height
Degree adjusting screw rod 14.Under(-)chassiss 11 adopt day glyph framework structure, and Adjustable supporter 12 is located at under(-)chassiss 11 length direction
Two middle side parts.Fixed seat 13 is arranged on the top of Adjustable supporter 12, is used for fixing failure detector 5.As shown in Figure 9, visit
Hinder device 5 to further include to visit wheel 51 and framework composition 52.Height adjusting screw rod 14 is used for fixed seat 13 and Adjustable supporter
Relative altitude between 12 is finely adjusted.In the middle of the specific embodiment of the invention as shown in drawings, with under(-)chassiss 11
As a example monolateral setting sliding platform 2 and rail test block 3, rail examination dynamic testing equipment is described, apparatus of the present invention
Can easily, neatly be extended in the bilateral setting sliding platform 2 of under(-)chassiss 11 and the implementation of rail test block 3.
As shown in Figure 4, sliding platform 2 further includes：Support groove 21, slide rail 22, spring backstop 23 and rail fastening down
Device 25.Slide rail 22 is arranged at under(-)chassiss 11 side along its length, and the bottom of support groove 21 is provided with fixing chute 26,
Support groove 21 passes through fixing chute 26 and is movably disposed on slide rail 22.As shown in Figure 8, rail test block 3 is locked by rail
Determine device 25 to be fixed in support groove 21, spring backstop 23 is arranged on under(-)chassiss 11 two ends along its length, and be located at cunning
The two ends of rail 22, carry out spacing to the movement of support groove 21.Sliding platform 2 still further comprises handrail 24, and handrail 24 is arranged on
Any one or both ends of support groove 21, operator promote support groove 21 to move back and forth along slide rail 22 by handrail 24, thus
Rail test block 3 in support groove 21 is moved back and forth with respect to failure detector 5.Now, the specific embodiment of the invention describes
Rail examination dynamic testing equipment can realize the effect of " rail motor-car is motionless ", only needs one i.e. operable, can be without power
The input of equipment.
As shown in Figure 6, auxiliary device 4 further includes：Velocity measuring device 41, velocity measuring device 41 is arranged on bottom
On portion's framework 11.Velocity measuring device 41 further includes：Tachometer disk 411, change-speed gearing 412, the fixed seat that tests the speed 413 and speed
Encoder 414.Tachometer disk 411, change-speed gearing 412 and speed encoder 414 are arranged at testing the speed in fixed seat 413, tachometer disk
411 are movably contacted with the sidepiece of support groove 21, the movement of support groove 21 are converted to the rotation of tachometer disk 411.Gear teeth
Wheel 412 is movably contacted with tachometer disk 411, the rotation of tachometer disk 411 is converted to the rotation of itself, speed encoder 414
The rotation of change-speed gearing 412 is changed into velocity pulse, and externally exports the translational speed signal of support groove 21.As accompanying drawing 7 institute
Show, coupling water jet device 42 further includes：Flexible spray boom 421, ball valve 422, nozzle 423 and water knockout drum 424.Coupling water according to
Secondary sprayed to the surface of rail test block 3 by water knockout drum 424, ball valve 422, flexible spray boom 421 and nozzle 423, in rail test block 3
Upper surface and failure detector 5 visit wheel 51 adventitias between contact surface formed moisture film.
As shown in accompanying drawing 5 and accompanying drawing 12, rail test block 3 is further provided with the bolt hole for simulating Crack In Bolt Hole
Saw kerf, for simulating the web of the rail cross-drilled hole of web of the rail regio defect, for simulating the rail head cross-drilled hole of rail head regio defect, be used for simulating rail
Any one or a few trauma in the flange of rail saw kerf of bottom position crackle.
Rail test block 3 further includes the first test block 31, and the first test block 31 is provided with for simulating Crack In Bolt Hole
Bolt hole saw kerf, and for simulating the web of the rail cross-drilled hole of web of the rail regio defect.
Rail test block 3 still further comprises the second test block 32, and the second test block 32 is provided with for simulating Crack In Bolt Hole
Bolt hole saw kerf, for simulating the rail head cross-drilled hole of rail head regio defect, and for simulating the flange of rail saw of flange of rail position crackle
Mouthful.
Rail test block 3 still further comprises the 3rd test block 33, and the 3rd test block 33 is provided with for simulating Crack In Bolt Hole
Bolt hole saw kerf, for simulating the web of the rail cross-drilled hole of web of the rail regio defect, for simulating the rail head cross-drilled hole of rail head regio defect, with
And for simulating the flange of rail saw kerf of flange of rail position crackle.
Rail test block 3 further includes more than one test block, test block is provided with bolt hole 30, the rail of test block is 43 again
～70kg, a length of 1～3m of rail of test block.
Above-mentioned first test block 31, the second test block 32 and the 3rd test block 33, and the first test block 31, the second test block 32 and the 3rd
Manual damage setting in test block 33 can be in any combination.As shown in Figure 5, it is above-mentioned first test block 31, the second test block 32 and
Assembled arrangement becomes one bar of rail in order for 3rd test block 33.
In the specific operation process carrying out rail examination dynamic testing equipment of the present invention, rail test block 3 is fixed on slip
On platform 2, the motion of rail test block 3 is exactly to promote sliding platform 2 by handrail 24.Sliding platform 2 drives rail test block 3 back and forth
Motion, you can realize " rail motor-car is motionless ", spring backstop 23 makes that sliding platform 2 is unlikely to skid off working interface.Meanwhile, by coupling
Water jet device 42 injection coupling water, makes the surface of rail test block 3 cover moisture film, ultrasonic signal is coupled into rail, thus
Ultrasound wave is made to visit the echo data that wheel dynamically obtains trauma from rail.Meanwhile, the other speed in the specific embodiment of the invention
The movement velocity of rail can be carried out linear convergent rate by degree measurement apparatus 41.
Embodiment 2：
As shown in Figure 10, the specific embodiment of rail examination dynamic test method of the present invention, comprises the following steps：
On the top of support frame 1, failure detector 5 is set；
Sliding platform 2 is movably set along its length in the bottom of support frame 1, sliding platform 2 is located at flaw detection dress
Put 5 lower section；
Rail test block 3 is arranged on sliding platform 2, rail test block 3 is located at the lower section of failure detector 5, and rail test block 3 can be
Under the drive of sliding platform 2, along the length direction of support frame 1 and mobile with respect to failure detector 5, rail test block 3 is used for carrying
Various trauma simulations for rail；
Auxiliary device 4 is arranged on support frame 1, auxiliary device 4 includes coupling water jet device 42, coupling water injection dress
Put 42 and couple water for rail test block 3 with the contact surface offer visited between wheel 52 of failure detector 5.
As shown in Figure 11, the top of the rail examination dynamic testing equipment of specific embodiment of the invention description is divided into spy wheel
Device 5, bottom is divided into rail test block 3.In figure, the bottom visiting wheel apparatus 5 is mounted with the spy wheel 51 of three ultrasound wave, visits wheel 51 and leads to
Overcoupling watertight pastes the rail level of rail test block 3, and rail test block 3 motion drives the adventitia motion visiting wheel 51, but does not change spy wheel 51
The direction of interior ultrasonic sensor.Once rail test block 3 motion will provide different detecting areas for above-mentioned ultrasonic sensor
Between, thus realizing the test method of " rail motor-car is motionless ".Car therein refers to visit wheel apparatus 5, and rail examination of the present invention is dynamic
Assay device is exactly to design to realize " rail moves ".
Sliding platform 2 includes support groove 21, slide rail 22, spring backstop 23 and handrail 24.In support frame 1 bottom along length
The side setting slide rail 22 in direction, arranges fixing chute 26 in the bottom of support groove 21, support groove 21 passes through fixing chute 26 can
It is movably fixed on slide rail 22, rail test block 3 is fixed in support groove 21.When carrying out rail examination dynamic test, behaviour
Make personnel and promote support groove 21 to move back and forth along slide rail 22 by being arranged on the handrail 24 of any one or both ends of support groove 21, from
And the rail test block 3 in support groove 21 is moved back and forth with respect to failure detector 5.Under(-)chassiss 11 along its length two
End setting spring backstop 23, spring backstop 23 is located at the two ends of slide rail 22 simultaneously, the movement of support groove 21 is carried out spacing.Handrail
24 are used for promoting sliding platform 2 linear running, and the design of Double armrest can single promote, and also can double promote.It is of course also possible to it is logical
Cross and so that support groove 21 is moved back and forth along slide rail 22 by the way of mechanical reciprocating promotes, so that the rail examination in support groove 21
Block 3 moves back and forth with respect to failure detector 5.The rail examination that the inventive method is applied to 0～12km/h inspection speed dynamically tries
Test.When using artificial promotion by the way of sliding platform 2, device is provided that the rail examination of 0～6km/h inspection speed dynamically tries
Test needs.
Velocity measuring device 41 is arranged on the under(-)chassiss 11 of support frame 1, velocity measuring device 41 includes tachometer disk
411st, change-speed gearing 412, the fixed seat that tests the speed 413 and speed encoder 414.Tachometer disk 411 is movable with the sidepiece of support groove 21
Ground contact, the movement of support groove 21 is converted to the rotation of tachometer disk 411.Change-speed gearing 412 is movably connect with tachometer disk 411
Touch, the rotation of tachometer disk 411 is converted to the rotation of itself, the rotation of change-speed gearing 412 is changed into speed by speed encoder 414
Degree pulse, and externally export the translational speed signal of support groove 21, failure detector 5 externally exports dynamic rail defects and failures number of echoes
According to.
Rail examination dynamic test method also includes the manufacturing process of rail test block 3, and this process is included in rail test block 3
It is provided for simulating the bolt hole saw kerf of Crack In Bolt Hole, for simulating the web of the rail cross-drilled hole of web of the rail regio defect, being used for simulating rail
The rail head cross-drilled hole of head regio defect, for simulating any one or a few trauma in the flange of rail saw kerf of flange of rail position crackle.
Rail test block 3 includes the first test block 31, and the manufacturing process of rail test block 3 further includes at and sets in the first test block 31
Put the bolt hole saw kerf for simulating Crack In Bolt Hole, and for simulating the web of the rail cross-drilled hole of web of the rail regio defect.
Rail test block 3 includes the second test block 32, and the manufacturing process of rail test block 3 further includes at and sets in the second test block 32
Put for simulate Crack In Bolt Hole bolt hole saw kerf, for simulating the rail head cross-drilled hole of rail head regio defect, and be used for simulating
The flange of rail saw kerf of flange of rail position crackle.
Rail test block 3 includes the 3rd test block 33, and the manufacturing process of rail test block 3 further includes at and sets in the 3rd test block 33
Put for simulate Crack In Bolt Hole bolt hole saw kerf, for simulating the web of the rail cross-drilled hole of web of the rail regio defect, be used for simulating rail head
The rail head cross-drilled hole of regio defect, and for simulating the flange of rail saw kerf of flange of rail position crackle.
Embodiment 3：
As shown in accompanying drawing 12,13,14 and 15, the specific embodiment of rail test block in the inventive method, rail examination is tested
Block is the web of the rail horizontal stroke being provided with for the bolt hole saw kerf simulating Crack In Bolt Hole on rail, being used for simulating web of the rail regio defect
Hole, for simulating the rail head cross-drilled hole of rail head regio defect, for simulating any one in the flange of rail saw kerf of flange of rail position crackle
Or several trauma, form rail test block 3.The rail test block 3 of specific embodiment of the invention description can provide and dedicated line roadbed
This consistent trauma sample, for the various rail defects and failureses of analog ultrasonic wave Non-Destructive Testing, meets rail examination real in all directions
The needs of border situation.
Rail test block 3 includes the first test block 31, and the first test block 31 is provided with the bolt hole for simulating Crack In Bolt Hole
Saw kerf, and for simulating any one or two kinds of traumas in the web of the rail cross-drilled hole of web of the rail regio defect.
Rail test block 3 includes the second test block 32, and the second test block 32 is provided with the bolt hole for simulating Crack In Bolt Hole
Saw kerf, for simulating the rail head cross-drilled hole of rail head regio defect, and for simulating appointing in the flange of rail saw kerf of flange of rail position crackle
Anticipate one or more traumas.
Rail test block 3 includes the 3rd test block 33, and the 3rd test block 33 is provided with the bolt hole for simulating Crack In Bolt Hole
Saw kerf, web of the rail cross-drilled hole, the rail head cross-drilled hole for simulating rail head regio defect for simulating web of the rail regio defect, and it is used for mould
Intend any one or a few trauma in the flange of rail saw kerf of flange of rail position crackle.
As shown in accompanying drawing 12,13 and 16, the first test block 31 is provided with bolt hole 30, bolt hole 30 is included positioned at the first examination
The two ends of block 31, the bolt hole 11 being intervally installed, bolt hole 12, bolt hole 13, bolt hole 14, bolt hole 15 and bolt hole
16.Bolt hole 11, bolt hole 12, bolt hole 13 are located at one end of the first test block 31, bolt hole 14, bolt hole 15 and bolt hole 16
The other end positioned at the first test block 31.The bolt hole saw kerf of the first test block 31 includes any one in bolt hole 30 arranged below
Or multiple saw kerf：
Saw kerf A11：Positioned at a quadrant of bolt hole 11, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 11, and the groove depth of saw kerf is 6～10mm, saw kerf
Groove width is 0.3～0.5mm；
Saw kerf B13：Positioned at three quadrants of bolt hole 12, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 12, and the groove depth of saw kerf is 6～10mm, saw kerf
Groove width is 0.3～0.5mm；
Saw kerf B11：Positioned at a quadrant of bolt hole 12, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 12, and the groove depth of saw kerf is 6～10mm, saw kerf
Groove width is 0.3～0.5mm；
Saw kerf C14：Positioned at the four-quadrant of bolt hole 13, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 13, and the groove depth of saw kerf is 6～10mm, saw kerf
Groove width is 0.3～0.5mm；
Saw kerf C12：Positioned at the two quadrant of bolt hole 13, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 13, and the groove depth of saw kerf is 6～10mm, saw kerf
Groove width is 0.3～0.5mm；
Saw kerf F14：Positioned at the two quadrant of bolt hole 16, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 16, and the groove depth of saw kerf is 6～10mm, saw kerf
Groove width is 0.3～0.5mm；
The web of the rail cross-drilled hole of the first test block 31 includes following being disposed on any one of the first test block 31 middle part web of the rail position
Plant or multiple cross-drilled hole：
Cross-drilled hole K11：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 65～85mm, and aperture is 1.5～2.5mm；
Cross-drilled hole K12：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 65～85mm, and aperture is 2.5～3.5mm；
Cross-drilled hole K13：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 65～85mm, and aperture is 4.5～5.5mm；
Cross-drilled hole K14：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 65～85mm, and aperture is 7～9mm；
Cross-drilled hole K15：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 110～140mm, and aperture is 1.5～2.5mm；
Cross-drilled hole K16：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 110～140mm, and aperture is 2.5～3.5mm；
Cross-drilled hole K17：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 110～140mm, and aperture is 4.5～5.5mm；
Cross-drilled hole K18：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 110～140mm, and aperture is 7～9mm；
Cross-drilled hole K19：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, positioned at bolt hole
7～9mm on the right side of the level at 14 edges, between cross-drilled hole K19 and bolt hole 14, the distance in axle center is 23～29mm, hole distance of shaft centers rail
The depth of tread is 87～107mm, and aperture is 4.5～5.5mm；
Cross-drilled hole K10：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, positioned at bolt hole
4.5～5.5mm on the right side of the level at 15 edges, between cross-drilled hole K10 and bolt hole 15, the distance in axle center is 20～26mm, hole distance of shaft centers
The depth of rail tread is 87～107mm, and aperture is 4.5～5.5mm.
As shown in accompanying drawing 12,14,17 and 18, the second test block 32 is provided with bolt hole 30, bolt hole 30 is included positioned at
The two ends of two test blocks 32, the bolt hole 21 being intervally installed, bolt hole 22, bolt hole 23, bolt hole 24, bolt hole 25 and spiral shell
Keyhole 26.Bolt hole 21, bolt hole 22, bolt hole 23 are located at one end of the second test block 32, bolt hole 24, bolt hole 25 and bolt
Hole 26 is located at the other end of the second test block 32.The bolt hole saw kerf of the second test block 32 includes arranged below any in bolt hole 30
One or more saw kerf：
Saw kerf B23：Positioned at three quadrants of bolt hole 22, from the horizontal by 40 °～50 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 22, the groove depth of saw kerf is 7～9mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf B22：Positioned at the two quadrant of bolt hole 22, from the horizontal by 40 °～50 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 22, the groove depth of saw kerf is 7～9mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf A26：Positioned at the right side at bolt hole 21 edge, from the horizontal by -5 °～5 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 21, the groove depth of saw kerf is 7～9mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf F25：Positioned at the left side at bolt hole 26 edge, from the horizontal by -5 °～5 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 26, the groove depth of saw kerf is 4～6mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf A23：Positioned at three quadrants of bolt hole 21, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 21, and the groove depth of saw kerf is 12～18mm, saw kerf
Groove width is 0.3～0.5mm；
Saw kerf C21：Positioned at a quadrant of bolt hole 23, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 23, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf C23：Positioned at three quadrants of bolt hole 23, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 23, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf D24：Positioned at the four-quadrant of bolt hole 24, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 24, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf D22：Positioned at the two quadrant of bolt hole 24, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 24, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf F22：Positioned at the two quadrant of bolt hole 26, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 26, and the groove depth of saw kerf is 12～18mm, saw kerf
Groove width is 0.3～0.5mm；
The rail head cross-drilled hole of the second test block 32 includes following being disposed on any one of the second test block 32 middle part rail head position
Plant or multiple cross-drilled hole：
Cross-drilled hole AF：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, it is arranged at the outside of rail, hole distance of shaft centers
The depth of rail tread is 15～21mm, and hole depth is 18～22mm, and aperture is 4.5～5.5mm；
Cross-drilled hole AG：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, it is arranged at the inner side of rail, hole distance of shaft centers
The depth of rail tread is 15～21mm, and hole depth is 18～22mm, and aperture is 4.5～5.5mm；
Cross-drilled hole BF：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, it is arranged at the outside of rail, hole distance of shaft centers
The depth of rail tread is 15～21mm, and hole depth is 30～40mm, and aperture is 4.5～5.5mm；
Cross-drilled hole BG：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, it is arranged at the inner side of rail, hole distance of shaft centers
The depth of rail tread is 15～21mm, and hole depth is 30～40mm, and aperture is 4.5～5.5mm；
Cross-drilled hole C：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, it is arranged at the inner side of rail, hole distance of shaft centers steel
The depth of rail tread is 15～21mm, and hole depth is 50～60mm, and aperture is 4.5～5.5mm；
Cross-drilled hole L：Parallel to the flange of rail of rail, become 15 °～20 ° angles with the vertical section of rail, be arranged at the inner side of rail,
The depth of hole distance of shaft centers rail tread is 15～21mm, and hole depth is 33～42mm, and aperture is 4.5～5.5mm；
Cross-drilled hole K：Parallel to the flange of rail of rail, become -15 °～-20 ° angles with the vertical section of rail, be arranged at the interior of rail
Side, the depth of hole distance of shaft centers rail tread is 15～21mm, and hole depth is 33～42mm, and aperture is 4.5～5.5mm；
The flange of rail saw kerf of the second test block 32 includes following being disposed on any one of the second test block 32 middle part flange of rail position
Plant or multiple saw kerf：
Saw kerf G21：It is arranged at the flange of rail center position of rail, saw kerf face is the circle of diameter 10～14mm, and saw kerf face is vertical
In flange of rail face, and the cross section parallel to rail, groove depth is 5～7mm, and flute length is 10～14mm, and groove width is 0.2～0.3mm；
Saw kerf G22：Be arranged at rail the flange of rail center position, saw kerf face be diameter 8～12mm circle, saw kerf face perpendicular to
Flange of rail face, and the cross section parallel to rail, groove depth is 3～5mm, and flute length is 8～11mm, and groove width is 0.2～0.3mm；
Saw kerf G23：Be arranged at rail the flange of rail center position, saw kerf face be diameter 6～10mm circle, saw kerf face perpendicular to
Flange of rail face, and the cross section parallel to rail, groove depth is 1.5～2.5mm, and flute length is 6～8mm, and groove width is 0.2～0.3mm.
As shown in accompanying drawing 12,15 and 19, the 3rd test block 33 is provided with bolt hole 30, bolt hole 30 is included positioned at the 3rd examination
The two ends of block 33, the bolt hole 31 being intervally installed, bolt hole 32, bolt hole 33, bolt hole 34, bolt hole 35 and bolt hole
36.Bolt hole 31, bolt hole 32, bolt hole 33 are located at one end of the 3rd test block 33, bolt hole 34, bolt hole 35 and bolt hole 36
The other end positioned at the 3rd test block 33.The bolt hole saw kerf of the 3rd test block 33 includes any one in bolt hole 30 arranged below
Or multiple saw kerf：
Saw kerf B33：Positioned at three quadrants of bolt hole 32, from the horizontal by 40 °～50 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 32, the groove depth of saw kerf is 7～9mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf B32：Positioned at the two quadrant of bolt hole 32, from the horizontal by 40 °～50 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 32, the groove depth of saw kerf is 7～9mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf A36：Positioned at the right side at bolt hole 31 edge, from the horizontal by -5 °～5 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 31, the groove depth of saw kerf is 7～9mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf F35：Positioned at the left side at bolt hole 36 edge, from the horizontal by -5 °～5 ° angles, the extension line of saw kerf leads to
Cross the center of circle of bolt hole 36, the groove depth of saw kerf is 4～6mm, the groove width of saw kerf is 0.3～0.5mm；
Saw kerf A33：Positioned at three quadrants of bolt hole 31, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 31, and the groove depth of saw kerf is 12～18mm, saw kerf
Groove width is 0.3～0.5mm；
Saw kerf C31：Positioned at a quadrant of bolt hole 33, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 33, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf C33：Positioned at three quadrants of bolt hole 33, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 33, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf D34：Positioned at the four-quadrant of bolt hole 34, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 34, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf D32：Positioned at the two quadrant of bolt hole 34, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 34, and the groove depth of saw kerf is 7～9mm, the groove of saw kerf
A width of 0.3～0.5mm；
Saw kerf F32：Positioned at the two quadrant of bolt hole 36, from the horizontal by 33.5 °～41.5 ° angles, with vertical direction
Become 47.5 °～57.5 ° angles, the extension line of saw kerf passes through the center of circle of bolt hole 36, and the groove depth of saw kerf is 12～18mm, saw kerf
Groove width is 0.3～0.5mm；
The web of the rail cross-drilled hole of the 3rd test block 33 includes following being disposed on any one of the 3rd test block 33 middle part web of the rail position
Plant or multiple cross-drilled hole：
Cross-drilled hole K32：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 55～65mm, and aperture is 4.5～5.5mm；
Cross-drilled hole K33：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 80～100mm, and aperture is 4.5～5.5mm；
Cross-drilled hole K34：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the web of the rail of rail, hole distance of shaft centers steel
The depth of rail tread is 110～130mm, and aperture is 4.5～5.5mm；
The rail head cross-drilled hole of the 3rd test block 33 includes following being disposed on any one of the 3rd test block 33 middle part rail head position
Plant or multiple cross-drilled hole：
Cross-drilled hole K31：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the rail head of rail, hole distance of shaft centers steel
The depth of rail tread is 12～18mm, and aperture is 4.5～5.5mm；
Cross-drilled hole K35：Parallel to the flange of rail of rail, perpendicular to the vertical section of rail, run through the rail head of rail, hole distance of shaft centers steel
The depth of rail tread is 27～33mm, and aperture is 4.5～5.5mm；
The flange of rail saw kerf of the 3rd test block 33 includes following being disposed on any one of the 3rd test block 33 middle part flange of rail position
Plant or multiple saw kerf：
Saw kerf G31：It is arranged at the flange of rail center position of rail, saw kerf face is the circle of diameter 10～14mm, and saw kerf face is vertical
In flange of rail face, and the cross section parallel to rail, groove depth is 5～7mm, and flute length is 10～14mm, and groove width is 0.2～0.3mm；
Saw kerf G32：Be arranged at rail the flange of rail center position, saw kerf face be diameter 8～12mm circle, saw kerf face perpendicular to
Flange of rail face, and the cross section parallel to rail, groove depth is 3～5mm, and flute length is 8～11mm, and groove width is 0.2～0.3mm；
Saw kerf G33：Be arranged at rail the flange of rail center position, saw kerf face be diameter 6～10mm circle, saw kerf face perpendicular to
Flange of rail face, and the cross section parallel to rail, groove depth is 1.5～2.5mm, and flute length is 5～8mm, and groove width is 0.2～0.3mm.
As shown in Figure 20, be rail test block 3 flange of rail trauma cross-sectional view, the center of rail test block 3 flange of rail
Position is provided with flange of rail trauma 34, and flange of rail trauma 34 is flange of rail saw kerf, is also called the vertical saw kerf in flange of rail center.Wherein, in figure
The position that H1 is referred to is the rail head position of rail test block 3, and H2 is web of the rail position, and H3 is flange of rail position.Accompanying drawing 21 is accompanying drawing 20
The part section structural parameters schematic diagram of middle flange of rail trauma 34.
The rail of the first test block 31, the second test block 32 and the 3rd test block 33 is respectively 43～70kg again.
The rail length of the first test block 31, the second test block 32 and the 3rd test block 33 is respectively 1～3m.
Above first test block 31, the second test block 32 and the 3rd test block 33, and the first test block 31, the second test block 32 and the 3rd
Manual damage in test block 33 all can be in any combination.Bolt hole saw kerf, web of the rail cross-drilled hole, rail head cross-drilled hole is included on rail, and
Flange of rail saw kerf is all sealed using epoxy resin in one or more interior (more than two or three) traumas.
Embodiment 4：
As one kind of the present invention preferably specific embodiment, embodiment 4 gives the specific process parameter of rail test block 3.
The rail test block 3 needing ultrasound detection includes three test blocks altogether, is the first test block 31, the second test block 32 and the 3rd test block respectively
33, rail test block three, processed by the new rail of 1.4 meters of P60, bolt hole is opened according to standard size in joint, own
Bolt hole need to be stupefied.The rail level of rail is smooth, no undulatory wear, no flake-off block, scratch, fish scale wound, soldering layer, uneven
Etc. defect.Rail mother metal through ultrasound detection no significant defect, trackside face, flange of rail face no substantially corrosion and scar.The quarter of bolt hole
Wire casing (saw kerf) width is 0.3～0.5mm, and groove groove (saw kerf) width of the flange of rail is 0.2～0.3mm.Rail profile carves test block
Message identification, such as：“GTS-T1”、“No：0001 ", " processing factory's title " etc., on rail include bolt hole saw kerf, web of the rail cross-drilled hole,
Rail head cross-drilled hole, and flange of rail saw kerf all sealed using epoxy resin in interior trauma, described in design parameter drawings described below.
The trauma numbering principle of each test block is：
(1) each test block is all individually numbered is Kmn, and m numbers for test block, and n numbers for trauma, in accompanying drawing from drawing from inside to outside
The side pointed out is outside.
(2) bolt hole saw kerf：It is A, B, C, D, E, F that six bolts hole from left to right are numbered respectively.Tiltedly saw kerf is according to institute
Be numbered in quadrant, upper right position be 1 quadrant, bottom right position be 2 quadrants, lower-left position be 3 quadrants, upper left position be 4 as
Limit.Left side jack saw mouth is No. n5, and right side jack saw mouth is No. n6.
(3) cross-drilled hole：Letter is K, and number consecutively is Kn1, Kn2, Kn3 etc. from left to right, and the rail head in the second test block 32 is horizontal
Hole is numbered according to the title on calibration line.
(4) bottom saw kerf：Letter is G, number consecutively from left to right：Gn1, Gn2, Gn3 etc..
The detail parameters of each test block trauma are as follows：
The trauma parameter of the first test block 31
(1) bolt hole saw kerf totally 6, as shown in table 1 below.
Table 1 first test block 31 bolt hole saw kerf parameter list
(2) web of the rail cross-drilled hole totally 10
Table 2 first test block 31 web of the rail cross-drilled hole parameter list
The trauma parameter of the second test block 32
(1) bolt hole saw kerf totally 10
Table 3 second test block 32 bolt hole saw kerf parameter list
(2) rail head cross-drilled hole totally 7
Table 4 second test block 32 rail head cross-drilled hole parameter list
(3) the vertical saw kerf in flange of rail center totally 3, simulate flange of rail crackle
Table 5 second test block 32 flange of rail saw kerf parameter list
The trauma parameter of the 3rd test block 33
(1) bolt hole saw kerf totally 10, parameter is with the second test block 32
Table 6 the 3rd test block 33 bolt hole saw kerf parameter list
(2) rail head and web of the rail cross-drilled hole totally 5, with aperture different depth
Table 7 the 3rd test block 33 rail head and web of the rail cross-drilled hole parameter list
(3) the vertical saw kerf in flange of rail center totally 3, with the second test block 32, position is different for size
Table 8 the 3rd test block 33 flange of rail saw kerf parameter list
By implementing the technical scheme of the rail examination dynamic test method of specific embodiment of the invention description, can produce
Following technique effect：
(1) the rail examination dynamic test method of specific embodiment of the invention description can for rail examination operation dynamically
There is provided omnibearing trauma experimental enviroment, and the rail defects and failures sample basically identical with special circuit, for analog ultrasonic wave
The various rail defects and failureses of Non-Destructive Testing, meet the needs of rail examination practical situation in all directions；
(2) the rail examination dynamic test method of specific embodiment of the invention description is capable of the survey of " rail motor-car is motionless "
Examination mode, rail test block fixed form flexibly, can in any combination, arbitrarily change detection object；Both possessed calibration line mode
Trauma presentation mode, can be consistent with actually detected situation again, be easy to be integrated in laboratory or the place little to site requirements,
Cost of investment is low, the construction period is short；
(3) device that the rail examination dynamic test method of specific embodiment of the invention description is utilized, possesses multichannel
Sensor mounting means, possesses the coupling device required for ultrasound examination, the auxiliary device such as velocity measuring device, perfect in shape and function
Reliability, small volume, lightweight, easy for installation, less, easy through engineering approaches affected by environment, little by artificial restraining factors, can be built in
Outdoor also can be built in interior, and suitable experimental study is used.
In this specification, each embodiment is described by the way of going forward one by one, and what each embodiment stressed is and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
The above, be only presently preferred embodiments of the present invention, and not the present invention is made with any pro forma restriction.Though
So the present invention is disclosed as above with preferred embodiment, but is not limited to the present invention.Any it is familiar with those skilled in the art
Member, in the case of the spirit without departing from the present invention and technical scheme, can be utilized in the methods and techniques of the disclosure above
Hold and technical solution of the present invention is made with many possible variations and modification, or the Equivalent embodiments being revised as equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, the technical spirit of the foundation present invention is to made for any of the above embodiments any simple
Modification, equivalent, equivalence changes and modification, all still fall within the scope of technical solution of the present invention protection.
Claims (10)
1. a kind of rail examination dynamic test method is it is characterised in that comprise the following steps：
On the top of support frame (1) setting failure detector (5)；
In movably setting sliding platform (2) along its length of the bottom of described support frame (1), described sliding platform (2)
Lower section positioned at described failure detector (5)；
In described sliding platform (2) upper setting rail test block (3), described rail test block (3) is located under described failure detector (5)
Side, described rail test block (3) can under the drive of described sliding platform (2), along the length direction of described support frame (1), and
Mobile with respect to described failure detector (5), described rail test block (3) is used for providing the various trauma simulations of rail；
In described support frame (1) upper setting auxiliary device (4), described auxiliary device (4) further includes to couple water injection dress
Put (42), described coupling water jet device (42) is between described rail test block (3) and the spy wheel (52) of described failure detector (5)
Contact surface provide coupling water.
2. rail examination dynamic test method according to claim 1 it is characterised in that：Described sliding platform (2) includes
Support groove (21), slide rail (22) and spring backstop (23)；The side setting along its length in described support frame (1) bottom is slided
Rail (22), arranges fixing chute (26) in the bottom of described support groove (21), and described support groove (21) passes through fixing chute (26)
Movably it is fixed on described slide rail (22), described rail test block (3) is fixed in described support groove (21)；When carrying out steel
During rail flaw detection dynamic test, described support groove (21) can move back and forth along described slide rail (22), so that described support groove
(21) the rail test block (3) in moves back and forth with respect to described failure detector (5)；Under(-)chassiss in described support frame (1)
(11) two ends along its length arrange described spring backstop (23), and described spring backstop (23) is located at described slide rail (22) simultaneously
Two ends, the movement of described support groove (21) is carried out spacing.
3. rail examination dynamic test method according to claim 2 it is characterised in that：In described support groove (21) arbitrarily
One or both ends setting handrail (24), when carrying out rail examination dynamic test, operator are by being arranged on described support groove
(21) handrail (24) of arbitrarily one or both ends promotes described support groove (21) to move back and forth along described slide rail (22), so that
Rail test block (3) in described support groove (21) moves back and forth with respect to described failure detector (5).
4. the rail examination dynamic test method according to Claims 2 or 3 it is characterised in that：In described support frame (1)
Under(-)chassiss (11) upper velocity measuring device (41) is set, described velocity measuring device (41) includes tachometer disk (411), speed change
Gear (412), the fixed seat that tests the speed (413) and speed encoder (414)；Described tachometer disk (411) and described support groove (21)
Sidepiece movably contacts, and the movement of described support groove (21) is converted to the rotation of described tachometer disk (411)；Described gear teeth
Wheel (412) is movably contacted with described tachometer disk (411), and the rotation of described tachometer disk (411) is converted to the rotation of itself,
The rotation of described change-speed gearing (412) is changed into velocity pulse by described speed encoder (414), and externally exports described support
The translational speed signal of groove (21), described failure detector (5) externally exports dynamic rail defects and failures echo data.
5. rail examination dynamic test method according to claim 4 it is characterised in that：Methods described is applied to 0～
The rail examination dynamic test of 12km/h inspection speed.
6. the rail examination dynamic test method according to any claim in claim 1,2,3,5 it is characterised in that：
Described rail examination dynamic test method also includes the manufacturing process of described rail test block (3), and this process is included in described rail
It is provided for simulating bolt hole saw kerf, web of the rail cross-drilled hole, the use for simulating web of the rail regio defect of Crack In Bolt Hole in test block (3)
In simulation rail head regio defect rail head cross-drilled hole, for simulate flange of rail position crackle flange of rail saw kerf in any one or a few
Trauma.
7. rail examination dynamic test method according to claim 6 it is characterised in that：Described rail test block (3) includes
First test block (31), the manufacturing process of described rail test block (3) further includes at and is provided on described first test block (31)
The bolt hole saw kerf of simulation Crack In Bolt Hole, and for simulating the web of the rail cross-drilled hole of web of the rail regio defect.
8. rail examination dynamic test method according to claim 6 it is characterised in that：Described rail test block (3) includes
Second test block (32), the manufacturing process of described rail test block (3) further includes at and is provided on described second test block (32)
The bolt hole saw kerf of simulation Crack In Bolt Hole, the rail head cross-drilled hole for simulating rail head regio defect, and be used for simulating flange of rail portion
The flange of rail saw kerf of position crackle.
9. rail examination dynamic test method according to claim 6 it is characterised in that：Described rail test block (3) includes
3rd test block (33), the manufacturing process of described rail test block (3) further includes at and is provided in described 3rd test block (33)
The bolt hole saw kerf of simulation Crack In Bolt Hole, for simulating the web of the rail cross-drilled hole of web of the rail regio defect, being used for simulating rail head position and lack
Sunken rail head cross-drilled hole, and for simulating the flange of rail saw kerf of flange of rail position crackle.
10. the rail examination dynamic test method according to any claim in claim 1,2,3,5,7,8,9, it is special
Levy and be：Methods described is applied to the rail examination dynamic test of 0～6km/h inspection speed.
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| CN201410577738.4A CN104267100B (en) | 2014-10-24 | 2014-10-24 | Dynamic test method for rail flaw detection |
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| CN109557178B (en) * | 2017-09-27 | 2021-04-02 | 鞍钢股份有限公司 | Automatic ultrasonic flaw detection device and method for flat-bulb steel |
| CN109030636A (en) * | 2018-07-24 | 2018-12-18 | 中铁检验认证中心 | The steel rail ultrasonic detection test block device and detection method of web of the rail welding cable |
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