CN107328867A - Groove profile rail hurt static state sample block - Google Patents
Groove profile rail hurt static state sample block Download PDFInfo
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- CN107328867A CN107328867A CN201710719456.7A CN201710719456A CN107328867A CN 107328867 A CN107328867 A CN 107328867A CN 201710719456 A CN201710719456 A CN 201710719456A CN 107328867 A CN107328867 A CN 107328867A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
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Abstract
The static sample block of groove profile rail hurt that the present invention is provided includes rail head, track slot, rail lip, the web of the rail and the flange of rail, rail head is provided with the first transverse holes, the second transverse holes, the 6th transverse holes and oblique hole, the 3rd transverse holes are provided with below track slot, junction between the web of the rail and the flange of rail is provided with the 4th transverse holes, and the second transverse holes and the 4th transverse holes are through hole；Multiple 5th transverse holes in transverse holes group, transverse holes group are provided with the web of the rail to be placed equidistant on length direction and short transverse；Fluted, the section semicircular in shape of groove is set in the middle part of the bottom surface of the flange of rail.Groove profile rail hurt static state sample root tuber sets the multiple detection holes for being located at rail head, rail lip, the web of the rail and the flange of rail respectively according to multiple hurt regions that groove profile rail is produced when Shi Jishiyong, to provide the hurt examination criteria in multiple hurt regions.
Description
Technical field
The present invention relates to groove profile rail ultrasonic examination technical field, more particularly to a kind of static sample block of groove profile rail hurt.
Background technology
The circuit of China's long term planning modern tram has added up more than 6000km, and the rule built are needed before the year two thousand twenty
Draw line length and exceeded 2600km, modern tram will be an important trend that future city track traffic develops.In paving
If, it is necessary to be welded using welding technique to groove profile rail when groove profile rail, and being needed before modern tram is formally runed
Carrying out flaw detection is carried out to groove profile rail weld seam.Modern tram grooved track is concordant with ground, and the weather conditions such as rainfall are produced
Raw ponding easily corrodes rail level, and modern tram is engaged in internal strife and the rail level caused by debris friction easily back and forth when travelling to track
Fretting fatigue produces underbead crack.So in order to ensure that the operation security needs of modern tram carry out inside to groove profile rail
The carrying out flaw detection of hurt.
At present in China's Rail Transit System, the defect-detecting equipment on I-rail is fairly perfect, is related to I-rail
The national standard of ultrasonic examination reference block just promulgated that national standard newest at present is GB/T early in 1999
Making and control method of the 11259-2015 ultrasound examinations with steel reference block, but on hurt inside groove profile rail sample block also
Do not seek unity of standard.
A kind of structure of the drawbacks of the standard sample rail of existing groove profile rail be by top to bottom successively include rail head, the web of the rail and
The flange of rail；Between rail head and the web of the rail, and arc transition between the web of the rail and the flange of rail；Six are from top to bottom disposed with the web of the rail
Guide groove is provided with one drawbacks of the standard flat-bottom hole, rail head；Second drawbacks of the standard is provided with its right end face of rail head to put down
Bottom outlet；Second drawbacks of the standard flat-bottom hole is located at the lower section of guide groove；The junction of the flange of rail and the web of the rail is provided with the first horizontal through hole.
What the drawbacks of the standard sample rail of existing this kind of groove profile rail was produced before being dispatched from the factory only for groove profile rail due to processing technology
Defect provides standard, and can not draw the hurt standard produced in the actual use of groove profile rail.
The content of the invention
The groove of processing technology defect standard and Shi Jishiyong hurt standard can be provided it is an object of the invention to provide a kind of
Type rail hurt static state sample block.
The static sample block of groove profile rail hurt that the present invention is provided includes rail head, track slot, rail lip, the web of the rail and the flange of rail, rail head, rail
Groove and rail lip are respectively positioned on the upper end of the static sample block of groove profile rail hurt, and track slot is located between rail head and rail lip；The flange of rail is located at groove profile
The lower end of rail hurt static state sample block, and the web of the rail is connected between rail head and the flange of rail；Rail head is provided with the side of track slot
One transverse holes and the second transverse holes, rail lip are provided with the 3rd transverse holes below track slot, the junction between the web of the rail and the flange of rail
The 4th transverse holes are provided with, the first transverse holes, the second transverse holes, the 3rd transverse holes and the 4th transverse holes are quiet along groove profile rail hurt
The width extension of aspect block, the second transverse holes and the 4th transverse holes are through hole；Transverse holes group is provided with the web of the rail, laterally
Hole group includes six the 5th transverse holes, and width of multiple 5th transverse holes along the static sample block of groove profile rail hurt extends, and the
The opening of five transverse holes is towards rail lip side；In the projection in the static sample block length direction of groove profile rail hurt, multiple five
Transverse holes are placed equidistant；In the projection in the static sample tile height direction of groove profile rail hurt, multiple 5th transverse holes are placed equidistant；Rail
Oblique hole, the width of the bearing of trend relative to the static sample block of groove profile rail hurt in oblique hole are provided with the side of the nearly track slot of head rest
Direction is inclined upwardly 13 degree to 19 degree；Set fluted in the middle part of the bottom surface of the flange of rail, length of the groove along the static sample block of groove profile rail hurt
Spend direction extension, the section semicircular in shape of groove；First transverse holes, the second transverse holes, the 3rd transverse holes, the 4th transverse holes,
The diameter of five transverse holes, oblique hole and groove is between 2 millimeters to 4 millimeters.
From such scheme, in actual use, track bears the longitudinal force of cross force, vertical force and length direction,
Multiple 5th transverse holes in transverse holes group set positions different in the longitudinal direction, and ultrasonic probe can be detected individually often
Echo at where individual 5th transverse holes, to obtain the hurt standard for often locating to occur on the web of the rail；The synthesis of cross force and vertical force
Inclined hurt can be produced, therefore sets oblique hole to provide oblique hurt standard, the flange of rail is born there may be hurt after vertical force,
Therefore setting groove to provide flange of rail hurt standard in the middle part of the flange of rail, the first transverse holes, the second transverse holes and the 3rd transverse holes are then provided
The hurt standard of rail head or rail lip, groove profile rail hurt static state sample root tuber is provided with positioned at rail according to the stressing conditions in actual use
Multiple transverse holes on head, rail lip, the web of the rail and the flange of rail are to provide the hurt examination criteria in multiple hurt regions.
Further scheme is, in the projection of the length direction of the static sample block of groove profile rail hurt, adjacent two the 5th
The distance of transverse holes is 10 millimeters, is 94 millimeters positioned at the 5th transverse holes of the top and the distance of flange of rail bottom surface.
Therefore, transverse holes group is arranged in the hurt region of the web of the rail.
Further scheme is, in the projection of the short transverse of the static sample block of groove profile rail hurt, adjacent two the 5th
The distance of transverse holes is 300 millimeters.
Therefore, the distance on the length direction of the 5th transverse holes is set according to the angle and installation site of probe.
Further scheme is that the depth of the 5th transverse holes is 6 millimeters, the depth in oblique hole for 15 millimeters to 18 millimeters it
Between, the length of groove is 40 millimeters.
Further scheme is that the 6th transverse holes are provided with rail head, and the 6th transverse holes are through hole, and the 6th transverse holes are along groove
The width extension of type rail hurt static state sample block, the 6th transverse holes are a diameter of between 2 millimeters to 4 millimeters, the 6th transverse holes with
The distance of the top surface of rail head is between 13 millimeters to 15 millimeter.
Therefore, blind hole is not only provided with sustained height position, sample block, through hole, blind hole and through hole is also provided with
Different degrees of hurt is represented, therefore hurt standards different on the height and position can be obtained.
Further scheme is that the first horizontal hole depth is 15 millimeters, and the distance of the top surface of the first transverse holes and rail head is
Between 13 millimeters to 15 millimeters；The distance of the top surface of second transverse holes and rail head is between 18 millimeters to 20 millimeter；3rd laterally
The depth in hole is between 30 millimeters to 35 millimeters, the distance of the bottom surface of the 3rd transverse holes and the flange of rail is 124 millimeters；4th transverse holes
Distance with the bottom surface of the flange of rail is 17 millimeters, and the distance of the aperture position in oblique hole and the top surface of rail head is 28 millimeters to 30 millimeters
Between.
Further scheme is that the first transverse holes, the second transverse holes, the 3rd transverse holes, the 4th transverse holes, the 5th are laterally
Hole, the 6th transverse holes, the diameter of oblique hole and groove are 2 millimeters.
Therefore, the setting of the diameter of transverse holes, oblique hole and groove is set according to certain standard can be more accurate
Ground obtains the hurt examination criteria met with actual hurt.
Further scheme is, in the projection of the short transverse of the static sample block of groove profile rail hurt, the first transverse holes, second
Adjacent the distance between two are 500 millimeters in transverse holes and the 6th transverse holes.
Further scheme is that the height of groove profile rail hurt static state sample block is 180 millimeters, and the width of the flange of rail is 180 millimeters,
The length of groove profile rail hurt static state sample block is 2000 millimeters.
Therefore, the profile of groove profile rail hurt static state sample block is designed according to the standard size of groove profile rail, and sets enough
Length to provide the stress hurt standard on length direction.
Further scheme is, the junction between rail head and the web of the rail sets the rounding that radius is 10 millimeters, the web of the rail with
Junction between the flange of rail sets the rounding that radius is 10 millimeters.
Brief description of the drawings
Fig. 1 is the front view of the static sample block first embodiment of groove profile rail hurt of the present invention.
Fig. 2 is the structural representation of groove profile rail in the static sample block first embodiment of groove profile rail hurt of the present invention.
Fig. 3 is the side view of the static sample block first embodiment of groove profile rail hurt of the present invention.
Fig. 4 is the side view of the static sample block first embodiment of groove profile rail hurt of the present invention.
Fig. 5 is the side view of the static sample block second embodiment of groove profile rail hurt of the present invention.
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment
First embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 is the front view of the static sample block embodiment of groove profile rail hurt of the present invention, and Fig. 2 is groove profile of the present invention
The structural representation of groove profile rail in rail hurt static state sample block embodiment.The static sample block of groove profile rail hurt that the present invention is provided is directed to groove
The flaw detection work of type rail and design, groove profile rail 9 include rail head 91, rail lip 92 and the track slot between rail head 91 and rail lip 92
93rd, the web of the rail 94 and the flange of rail 95, rail head 91 are broadside side, and rail lip 92 is narrow avris, and rail head 91, track slot 93 and rail lip 92 are respectively positioned on groove
The upper end of type rail 9, the flange of rail 95 is located at the lower end of groove profile rail 9, and the web of the rail 94 is located between rail head 91 and the flange of rail 95.
After actual use, when train is travelled on groove profile rail can to groove profile rail produce cross force, vertical force and with groove profile rail
Length direction identical longitudinal force, three-dimensional active force makes groove profile rail form most common several hurt regions：On rail head 91
The second hurt region 902, the 3rd hurt region 903 of the bottom center of the flange of rail 95, rail on one hurt region 901, the web of the rail 94
Lip 92 is in the bottom land of track slot 93 the 4th hurt region 904 formed below.The static sample block pin of groove profile rail hurt that the present invention is provided
Hurt examination criteria is provided to multiple hurt regions.
The cross section profile of groove profile rail hurt static state sample block is consistent with groove profile rail, the static sample block of groove profile rail hurt including rail head 1,
Rail lip 2 and track slot 3, the web of the rail 4 and the flange of rail 5 between rail head 1 and rail lip 2, rail head 1 are broadside side, and rail lip 2 is narrow side
Side, rail head 1, track slot 3 and rail lip 2 are respectively positioned on the upper end of the static sample block of groove profile rail hurt, and the flange of rail 5 is located at the static sample of groove profile rail hurt
The lower end of block, the web of the rail 4 is located between rail head 1 and the flange of rail 5.
With reference to Fig. 3 and Fig. 4, Fig. 3 and Fig. 4 are the side view of the static sample block embodiment of groove profile rail hurt of the present invention.Groove profile
The height of rail hurt static state sample block is 180 millimeters, and the width of the flange of rail 5 is 180 millimeters, and the length of groove profile rail hurt static state sample block is
2000 millimeters.Wherein, the width of the flange of rail 5 is the width of the static sample block of groove profile rail hurt, and the connection between rail head 1 and the web of the rail 4
Place sets the rounding that radius is 10 millimeters, and the junction between the web of the rail 4 and the flange of rail 5 sets the rounding that radius is 10 millimeters.
For the first hurt region 901 on groove profile rail 9, groove profile rail hurt static state sample block is provided with rail head 1
First transverse holes 10, the second transverse holes 20, the 6th transverse holes 60 and oblique hole 70.
First transverse holes 10 are blind hole, and the first transverse holes 10 are arranged on rail head 1 on the side of track slot 3, and first is horizontal
It is horizontal-extending to width of the hole 10 along the static sample block of groove profile rail hurt；First transverse holes 10 and the distance of the top surface of rail head 1
For 15 millimeters, the depth of the first transverse holes 10 is 15 millimeters, a diameter of 2 millimeters of the first transverse holes 10.
Second transverse holes 20 and the 6th transverse holes 60 are through hole, and the second transverse holes 20 and the 6th transverse holes 60 are along groove profile
The width of rail hurt static state sample block is horizontal-extending, and the distance of the second transverse holes 20 and the top surface of rail head 1 is 20 millimeters, the 6th
The distance of the top surface of transverse holes 60 and rail head 1 is 15 millimeters, and the diameter of the second transverse holes 20 and the 6th transverse holes 60 is 2 millis
Rice.
Blind hole represents different hurt situations from the echo-signal that through hole is fed back, therefore is provided with and is located on rail head 1
First transverse holes 10 of same level height and the 6th transverse holes 60.
Oblique hole 70 is blind hole, and oblique hole 70 is arranged on rail head 1 on the side of track slot 3, the opening in oblique hole 70
The distance of position and the top surface of rail head 1 is 30 millimeters, and the bearing of trend in oblique hole 70 is relative to the static sample block of groove profile rail hurt
Width is inclined upwardly 19 degree, and the depth in oblique hole 70 is 15 millimeters, a diameter of 2 millimeters of oblique hole 70.
On the length direction of the static sample block of groove profile rail hurt, the first transverse holes 10 and the 6th transverse holes 60 are separated by 500 millis
Rice is set, and is separated by 500 millimeters of setting between the 6th transverse holes 60 and the second transverse holes 20, the second transverse holes 20 and oblique hole 70 it
Between be separated by 300 millimeters of settings, and the first transverse holes 10 are apart from 500 millimeters of settings of rail section of the static sample block of groove profile rail hurt.
Under the collective effect of horizontal force and vertical force, easily occur at inclined hurt on rail head 1, if only with transverse direction
Hole can not then draw the echo data matched with oblique hurt, therefore set oblique hole 70 to obtain the detection criterion of oblique hurt.
For the second hurt region on groove profile rail 9, groove profile rail hurt static state sample block is provided with transverse direction on the web of the rail 4
Hole group 500.
Transverse holes group 500 includes six the 5th transverse holes 50, and multiple 5th transverse holes 50 are along the static sample of groove profile rail hurt
The width extension of block, and the 5th transverse holes 50 opening towards the side of rail lip 3, a diameter of 2 milli of the 5th transverse holes
Rice, depth is 6 millimeters, and the 5th transverse holes 50 and the distance of the bottom surface of the flange of rail 5 positioned at the top are 94 millimeters.Six the 5th
Transverse holes 50 are equidistantly positioned on the length direction of the static sample block of groove profile rail hurt and in the height of the static sample block of groove profile rail hurt
Degree is equidistantly positioned on direction, the distance of adjacent two the 5th transverse holes 50 on the static sample block length direction of groove profile rail hurt
For 300 millimeters, the distance of adjacent two the 5th transverse holes 50 on the static sample tile height direction of groove profile rail hurt is 10 millimeters.
In addition, setting the 4th transverse holes 40 in the junction of the web of the rail 4 and the flange of rail 5, the 4th transverse holes 40 are through hole, and the 4th is horizontal
To a diameter of 2 millimeters of hole 40, width of the 4th transverse holes 40 along the static sample block of groove profile rail hurt extends, the 4th transverse holes
40 and the distance of the bottom surface of the flange of rail 5 are 17 millimeters, between the 4th transverse holes 40 and the static sample block front end face of groove profile rail hurt away from
From for 750 millimeters.
Because hurt easily occurs everywhere in different height on the web of the rail 4, therefore set be equidistantly positioned multiple five horizontal
To hole 50, because failure detector must be detection of being walked on the static sample block of groove profile rail hurt, and it is static in groove profile rail hurt
The 5th transverse holes 50 being placed equidistant on sample block length direction avoid multiple transverse holes and got too close to and to produce echo mutually dry
Disturb and the accurate echo data of each transverse holes can not be obtained, while the 5th transverse holes 50 being placed equidistant can also be compiled with photoelectricity
Code device is used in combination and accurately obtained the echo data of each transverse holes.
For being located at track slot 3 on the 3rd hurt region of groove profile rail 9, the in-orbit lip 2 of groove profile rail hurt static state sample block
The part of lower section is provided with the 3rd transverse holes 30.
Outwardly, width of the 3rd transverse holes 30 along the static sample block of groove profile rail hurt prolongs the opening of 3rd transverse holes 30
Stretch, the 3rd transverse holes 30 are blind hole, the depth of the 3rd transverse holes 30 is 30 millimeters, a diameter of 2 millimeters of the 3rd transverse holes 30, the
The distance of the bottom surface of three transverse holes 30 and the flange of rail 5 is 124 millimeters.
For positioned at the 4th hurt region of groove profile rail 9, lower center position of the groove profile rail hurt static state sample block in the flange of rail 5
One of bearing of trend and the static sample block length direction identical groove 80 of groove profile rail hurt are provided with, the section of groove 80 is in semicircle
Shape, the development length of groove 80 is 40 millimeters, and a diameter of 2 millimeters of groove 80, groove 80 is arranged on the 5th the 5th transverse holes
Between 50 and the 6th the 5th transverse holes 50, and the extending end end face of groove 80 and the 6th the 5th transverse holes 50 are in groove profile rail
Distance on hurt static state sample block length direction is 100 millimeters.
Under the Action of Gravity Field of train, easily there is hurt in the bottom that the flange of rail 5 is located at immediately below the web of the rail 4, therefore at the bottom of the flange of rail 5
Groove 80 is set to obtain the detection criterion of the hurt of the flange of rail 5 immediately below face center position, the i.e. web of the rail 4.
Second embodiment
With reference to Fig. 1 and Fig. 5, Fig. 5 is the side view of the static sample block second embodiment of groove profile rail hurt, wherein transverse holes only on the web of the rail
The arrangement of group is different from first embodiment, in the present embodiment, and immediate 5th transverse holes 52 and the 5th are horizontal on length direction
Distance is 20 millimeters in the height direction between hole 51, but in the projection in the static sample block length direction of groove profile rail hurt, the 5th
Transverse holes 51 are adjacent with the 5th transverse holes 53, and distance is 10 millimeters therebetween；5th transverse holes 52 and the phase of the 5th transverse holes 53
Neighbour, distance is to be still to be placed equidistant between 10 millimeters, i.e., multiple 5th transverse holes therebetween；Similarly, hinder in groove profile rail
In the projection for damaging static sample tile height direction, multiple 5th transverse holes are placed equidistant.
Multiple hurt regions that the static sample root tuber of groove profile rail hurt that the present invention is provided is produced according to groove profile rail when Shi Jishiyong
And the multiple holes for being located at rail head, rail lip, the web of the rail and the flange of rail respectively are set, to provide the hurt examination criteria in multiple hurt regions.
Finally it is emphasized that the foregoing is only the preferred embodiments of the present invention, it is not intended to limit the invention, it is right
For those skilled in the art, the present invention can have various change and change, such as：Due to track have symmetrical left rail with
Right rail, and the present embodiment is described in detail just for a wherein rail, therefore suitable for symmetry orbital, with groove profile in the present embodiment
The symmetrically arranged embodiment of rail hurt static state sample block also should be within protection scope of the present invention；All spiritual and originals in the present invention
Within then, any modification, equivalent substitution and improvements done etc. should be included in the scope of the protection.
Claims (10)
1. groove profile rail hurt static state sample block, including rail head, track slot, rail lip, the web of the rail and the flange of rail, the rail head, the track slot and institute
State the upper end that rail lip is respectively positioned on the static sample block of the groove profile rail hurt, and the track slot be located at the rail head and the rail lip it
Between；The flange of rail is located at the lower end of the static sample block of the groove profile rail hurt, and the web of the rail is connected to the rail head and the rail
Between bottom；
The rail head is provided with the first transverse holes and the second transverse holes on the side of the track slot, and the rail lip is in the rail
The 3rd transverse holes are provided with below groove, the junction between the web of the rail and the flange of rail is provided with the 4th transverse holes, described
First transverse holes, second transverse holes, the 3rd transverse holes and the 4th transverse holes are quiet along the groove profile rail hurt
The width extension of aspect block, second transverse holes and the 4th transverse holes are through hole；
It is characterized in that：
Transverse holes group is provided with the web of the rail, the transverse holes group includes six the 5th transverse holes, and multiple described five laterally
Width of the hole along the static sample block of the groove profile rail hurt extends, and the 5th transverse holes opening towards the rail lip institute
In side；In the projection in the static sample block length direction of the groove profile rail hurt, multiple 5th transverse holes are placed equidistant；
In the projection in the static sample tile height direction of the groove profile rail hurt, multiple 5th transverse holes are placed equidistant；
The rail head is provided with oblique hole on the side of the track slot, and the bearing of trend in the oblique hole is relative to the groove
The width of type rail hurt static state sample block is inclined upwardly 13 degree to 19 degree；
Set fluted in the middle part of the bottom surface of the flange of rail, length direction of the groove along the static sample block of the groove profile rail hurt prolongs
Stretch, the section semicircular in shape of the groove；
First transverse holes, second transverse holes, the 3rd transverse holes, the 4th transverse holes, the described 5th are laterally
The diameter in hole, the oblique hole and the groove is between 2 millimeters to 4 millimeters.
2. the static sample block of groove profile rail hurt according to claim 1, it is characterised in that：
In the projection of the length direction of the static sample block of the groove profile rail hurt, the distance of adjacent two the 5th transverse holes
It it is 94 millimeters positioned at the 5th transverse holes of the top and the distance of the flange of rail bottom surface for 10 millimeters.
3. the static sample block of groove profile rail hurt according to claim 2, it is characterised in that：
In the projection of the short transverse of the static sample block of the groove profile rail hurt, the distance of adjacent two the 5th transverse holes
For 300 millimeters.
4. the static sample block of groove profile rail hurt according to claim 3, it is characterised in that：
The depth of 5th transverse holes is 6 millimeters, and the depth in the oblique hole is the groove between 15 millimeters to 18 millimeters
Length be 40 millimeters.
5. the static sample block of groove profile rail hurt according to claim 4, it is characterised in that：
It is provided with the 6th transverse holes on the rail head, the 6th transverse holes are through hole, the 6th transverse holes are along the groove profile
The width extension of rail hurt static state sample block, the 6th transverse holes are a diameter of between 2 millimeters to 4 millimeters, and the described 6th is horizontal
The distance of the top surface of rail head described in Xiang Kongyu is between 13 millimeters to 15 millimeter.
6. the static sample block of groove profile rail hurt according to claim 5, it is characterised in that：
The first horizontal hole depth is 15 millimeters, the distance of first transverse holes and the top surface of the rail head for 13 millimeters extremely
Between 15 millimeters；
The distance of the top surface of second transverse holes and the rail head is between 18 millimeters to 20 millimeter；
The depth of 3rd transverse holes is between 30 millimeters to 35 millimeters, the bottom surface of the 3rd transverse holes and the flange of rail
Distance is 124 millimeters；
The distance of the bottom surface of 4th transverse holes and the flange of rail is 17 millimeters；
The distance of the aperture position in the oblique hole and the top surface of the rail head is between 28 millimeters to 30 millimeter.
7. the static sample block of groove profile rail hurt according to claim 6, it is characterised in that：
First transverse holes, second transverse holes, the 3rd transverse holes, the 4th transverse holes, the described 5th are laterally
Hole, the 6th transverse holes, the diameter of the oblique hole and the groove are 2 millimeters.
8. the static sample block of groove profile rail hurt according to claim 7, it is characterised in that：
In the projection of the short transverse of the static sample block of the groove profile rail hurt, first transverse holes, second transverse holes
Adjacent the distance between two are 500 millimeters with the 6th transverse holes.
9. the static sample block of groove profile rail hurt according to any one of claim 1 to 8, it is characterised in that：
The height of the static sample block of the groove profile rail hurt is 180 millimeters, and the width of the flange of rail is 180 millimeters, the groove profile rail
The length of hurt static state sample block is 2000 millimeters.
10. the static sample block of groove profile rail hurt according to any one of claim 1 to 8, it is characterised in that：
Junction between the rail head and the web of the rail sets the rounding that radius is 10 millimeters, the web of the rail and the flange of rail
Between junction set radius to be 10 millimeters of rounding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710719456.7A CN107328867B (en) | 2017-08-21 | 2017-08-21 | Groove type rail damage static sample block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710719456.7A CN107328867B (en) | 2017-08-21 | 2017-08-21 | Groove type rail damage static sample block |
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| CN107328867A true CN107328867A (en) | 2017-11-07 |
| CN107328867B CN107328867B (en) | 2023-06-30 |
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| CN207281016U (en) * | 2017-08-21 | 2018-04-27 | 暨南大学 | Groove profile rail hurt static state sample block |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103969333A (en) * | 2014-05-22 | 2014-08-06 | 攀钢集团攀枝花钢钒有限公司 | Method for detecting flaw of wing rail |
| CN205861621U (en) * | 2016-06-22 | 2017-01-04 | 内蒙古包钢钢联股份有限公司 | The drawbacks of the standard sample rail of grooved rail |
| CN206362742U (en) * | 2016-11-03 | 2017-07-28 | 中国铁道科学研究院金属及化学研究所 | A kind of steel rail welding line ultrasonic detection device |
| CN207281016U (en) * | 2017-08-21 | 2018-04-27 | 暨南大学 | Groove profile rail hurt static state sample block |
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