CN108265576A - A kind of gapless track micro-displacement measuring device - Google Patents
A kind of gapless track micro-displacement measuring device Download PDFInfo
- Publication number
- CN108265576A CN108265576A CN201810259229.5A CN201810259229A CN108265576A CN 108265576 A CN108265576 A CN 108265576A CN 201810259229 A CN201810259229 A CN 201810259229A CN 108265576 A CN108265576 A CN 108265576A
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- China
- Prior art keywords
- rail
- displacement
- amesdial
- micro
- displacement measuring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B35/00—Applications of measuring apparatus or devices for track-building purposes
Abstract
The invention discloses a kind of gapless track micro-displacement measuring device, including：The fixing device being installed on sleeper；The mobile device being installed on rail can be moved with the movement of rail, and mobile device includes the baffle set towards rail length direction；And the amesdial in fixing device is set to, measuring staff and the baffle plane perpendicular contact of amesdial；When diffusing measurement to rail progress stress state using rail-impacting block, rail is hit by rail-impacting block, until amesdial measures the bouncing displacement opposite with crash direction, then it is assumed that rail is in zero stress state；If amesdial is unmeasured to bouncing displacement relative to initial makeup location, then it is assumed that rail is not up to zero stress state.The present invention can solve the technical issues of existing micro-displacement measuring device displacement measurement accuracy is not high, and measurement process is complicated.
Description
Technical field
The present invention relates to railroad engineering survey field, more particularly, to a kind of rail microbit applied to seamless railway circuit
Measuring system.
Background technology
Principal mode of the gapless track as railway track structure, has obtained increasingly extensive application.Gapless track
Mainly loading characteristic is：When rail temperature and actual lock rail temperature are inconsistent, there are stress in rail.When actual lock rail temperature
During more than design fastening-down temperature of rail, excessive stress tension or in compression is there is inside rail.At this moment just need to gapless track into
Row destressing, in the range of fastening-down temperature of rail when making its practical fastening-down temperature of rail be restored to design, to ensure at track-frame structure
In stable state.When gapless track carries out destressing, it is rail to weigh it and diffuse a whether even, accurate, enough important prerequisite
In zero stress state, judge that the method that rail is in zero stress state is that rail is in non-displacement state at ambient temperature.
At present, the method for in-site measurement rail stress state relies primarily on the method visually measured with artificial feel.Manually
Sensory methods are that rail is felt also there are displacement in people station whether on the rail positioned at Longkou position, this method be it is a kind of rough,
Convenient measuring method.But artificial feel method needs energy to concentrate, big by artifical influence factor, Observation personnel needs rich
Rich experience, and precision is relatively low, is not easy to observe the micro-displacement of rail rebound.
Invention content
In view of this, the purpose of the present invention is to provide a kind of gapless track micro-displacement measuring devices, existing micro- to solve
The technical issues of displacement measuring device displacement measurement accuracy is not high, and measurement process is complicated.
In order to achieve the above-mentioned object of the invention, the present invention specifically provides a kind of technology of gapless track micro-displacement measuring device
Implementation, a kind of gapless track micro-displacement measuring device, including：
The fixing device being installed on sleeper；
The mobile device being installed on rail can be moved with the movement of the rail, and the mobile device includes direction
The baffle of rail length direction setting；
And the amesdial in the fixing device is set to, the measuring staff of the amesdial is vertical with the baffle plane to be connect
It touches；
When carrying out destressing to the rail using rail-impacting block, rail is hit by the rail-impacting block, directly
The bouncing displacement opposite with crash direction is measured to the amesdial, then it is assumed that the rail is in zero stress state；If
The amesdial is unmeasured to bouncing displacement relative to initial makeup location, then it is assumed that the rail is not up to zero stress state.
Preferably, the mobile device includes the bearing for the inverted u-shaped being mounted on the rail, and the bearing is along rail
The both sides of width direction are provided with mounting hole, the mobile device are fixed on rail across mounting hole by bolt two, institute
State the top that baffle is fixed on the bearing.The bolt two is unclamped, the mobile device can be along the length direction of the rail
It is mobile.
Preferably, the baffle uses glass plate, and the amesdial has reversed displacement measurement function.
Preferably, the fixing device includes the U-shaped being made of supporting leg and the crossbeam being connected between two supporting legs
Type fixing tool.The bottom of the supporting leg is fixed with the vertical bolt on the sleeper, and the fixing device further includes one end and fixes
In on the crossbeam, the other end and the fixed strut of the amesdial, the strut link with the beam vertical.
Preferably, the end of the strut is fixedly connected by table folder with the fixed link of the amesdial.
Preferably, before stress state measurement is carried out to the rail, when micro-displacement measuring device is initially installed,
The measuring staff that relative distance between the fixing device and mobile device meets the amesdial generates suitable initial displacement.
Preferably, the rail-impacting block is installed on the Longkou position of the rail, the micro-displacement measuring device and rail-impacting block
Between installation site spacing on the rail is maintained at 98~102m.
Preferably, when the measurement length of rail is greater than or equal to 500m, by least installing a set of microbit every 500m
Measuring system carries out stress state measurement.When the measurement length of rail is less than 500m, by installing a set of microdisplacement measurement
Device carries out stress state measurement.
Preferably, when the amesdial measures bouncing displacement, the rail-impacting block stops hitting the rail for being measured section.
Preferably, the mobile device is directed toward the direction of fixing device and the direction of displacement of rail during rail-impacting block shock
Unanimously.
The technical solution of the gapless track micro-displacement measuring device provided by implementing the invention described above has following beneficial
Effect：
(1) when gapless track micro-displacement measuring device of the present invention is using bump rail the bouncing displacement that generates carry out rail should
Power state measurement, micro-displacement when can rebound to rail carry out more accurate quantization and measure, it is ensured that the zero of rail
Stress state is more uniform；
(2) gapless track micro-displacement measuring device of the present invention is simple in structure, easy to operate, practical, precision is high, measures complete
It is not influenced by external environment and subjective judgement, can fully realize that rail stress diffuses even, accurate, enough；
(3) gapless track micro-displacement measuring device of the present invention carries out the measurement of rail micro-displacement, amesdial by amesdial
Setting is on the securing means so that measure is not influenced completely by rail movement.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is a kind of structure diagram of specific embodiment of gapless track micro-displacement measuring device of the present invention；
Fig. 2 is a kind of mounting structure schematic diagram of specific embodiment of gapless track micro-displacement measuring device of the present invention；
Fig. 3 is the structural representation of fixing device in a kind of specific embodiment of gapless track micro-displacement measuring device of the present invention
Figure；
Fig. 4 is the structural representation of mobile device in a kind of specific embodiment of gapless track micro-displacement measuring device of the present invention
Figure；
Fig. 5 is a kind of mounting structure side view of the specific embodiment of gapless track micro-displacement measuring device of the present invention on rail
Figure；
Fig. 6 is a kind of mounting structure signal of the specific embodiment of gapless track micro-displacement measuring device of the present invention on rail
Figure；
Fig. 7 is the partial enlargement structural representation of part A in Fig. 6；
Fig. 8 is a kind of installation site signal of the specific embodiment of gapless track micro-displacement measuring device of the present invention on rail
Figure；
Fig. 9 is that installation site of the gapless track micro-displacement measuring device another kind specific embodiment of the present invention on rail is shown
It is intended to；
In figure：1- micro-displacement measuring devices, 2- rail, 3- rail-impacting blocks, 4- Longkous, 5- sleepers, 6- found bolt, and 10- is fixed
Device, 11- crossbeams, 12- supporting legs, 13- struts, 14- bolts one, 15- table folders, 20- mobile devices, 21- bearings, 22- plate washers,
23- bolts two, 30- amesdials, 31- measuring staffs, 32- fixed links.
Specific embodiment
For the sake of quoting and understanding, by the technical term hereinafter used, write a Chinese character in simplified form or abridge and be described below：
Amesdial：It checks the main measurer of the minor deviations of accessory size and shape, is widely used in precision instrument workpiece
Error in geometrical form and site error on, belong to dimensional measuring instrument, its precision can reach 0.001mm；
Rail-impacting block：It is put applied to railway long rail in progress gapless track joint connector welding procedure, gapless track stress
A kind of auxiliary machine tool of adjustment rail gap operation is dissipated, rail-impacting block is hit by " rail manpower coaster " during use, makes gapless line
Longitudinal movement；
Longkou：Rail truncated position.
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, clear, complete description is carried out to the technical solution in the embodiment of the present invention.Obviously, described embodiment is only
Only it is the part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
All other embodiment that art personnel are obtained without creative efforts belongs to the model that the present invention protects
It encloses.
As shown in attached drawing 1 to attached drawing 9, the specific embodiment of gapless track micro-displacement measuring device of the present invention is given, under
The invention will be further described with reference to the drawings and specific embodiments in face.
Gapless track micro-displacement measuring device of the present invention judges that in the method that rail 2 is in zero stress state be rail 2
At ambient temperature in non-displacement state, i.e., rail 2 rebound is bumped against into using rail-impacting block 3, being treated as rail 2 should in zero
Power state.Therefore, accurate, the quick bouncing displacement for measuring rail 2 becomes extremely important.When rail 2 is in rebound state, position
Very little is moved, is not easy to observe the micro-displacement that rail 2 rebounds using traditional displacement observation method.And the specific embodiment of the invention is retouched
The gapless track micro-displacement measuring device stated carries out the measurement of rail micro-displacement using amesdial 30, when can rebound to rail 2
Micro-displacement carry out more accurate quantization and measure, ensure that the zero stress state of rail 2 is more uniform, fully realize rail 2
Destressing it is even, accurate, enough.
Embodiment 1
As shown in Figures 1 and 2, a kind of embodiment of gapless track micro-displacement measuring device of the present invention, specifically includes：
The fixing device 10 being installed on sleeper 5；
The mobile device 20 being installed on rail 2 can be moved with the movement of rail 2, and mobile device 20 is included towards steel
The baffle 22 of 2 length direction of rail setting；
And the amesdial 30 in fixing device 10 is set to, measuring staff 31 and 22 planar vertical contact of baffle of amesdial 30；
When micro-displacement measuring device 1 is used to carry out stress state measurement, together with fixing device 10 and mobile device 20
It is used cooperatively.When carrying out destressing to rail 2 using rail-impacting block 3, rail 2 is hit by rail-impacting block 3, Zhi Daoqian
Table 30 is divided to measure the bouncing displacement opposite with crash direction, then it is assumed that rail 2 is in zero stress state.If 30 phase of amesdial
It is unmeasured to bouncing displacement for initial makeup location, then it is assumed that rail 2 is not up to zero stress state.
Mobile device 20 further comprises the bearing 21 for the inverted u-shaped being mounted on rail 2, and bearing 21 is along 2 width of rail
The both sides in direction are provided with mounting hole, mobile device 20 are fixed on rail 2 across mounting hole by bolt 2 23, baffle 22
It is fixed on the top of bearing 21.Bolt 2 23 is unclamped, mobile device 20 can be moved along the length direction of rail 2.It will using glue
Baffle 22 is fixed on bearing 21, and the plane of baffle 22 is vertical with the longitudinal direction (i.e. the length direction of rail 2) of bearing 21.It uses
When the bearing 21 of inverted u-shaped is set on rail 2, screw four bolts 2 23 on bearing 21, you can ensure mobile device
20 can be moved with rail 2.
The measuring instrumentss of micro-displacement measuring device 1 use amesdial 30, and amesdial 30 has reversed displacement measurement function, keep off
Plate 22 uses glass plate, so the micro-displacement with rebound in zero stress of rail 2 can measure.Micro-displacement measuring device 1
Can be moved with rail 2, and this device push measuring instrument work, measuring instrument be fixed on a device without by
The influence of rail movement, you can achieve the purpose that measurement.
Fixing device 10 further comprises being fallen by what supporting leg 12 and the crossbeam being connected between two supporting legs 12 11 formed
U-shaped fixing tool.The bottom of supporting leg 12 is fixed on by bolt 1 on the vertical bolt 6 of sleeper 5, and fixing device 10 further includes
One end is fixed on crossbeam 11, and the other end and 30 fixed strut 13 of amesdial, strut 13 are vertically connected to crossbeam 11 (using weldering
It connects mode one end of supporting leg 12 and inverted u-shaped fixing tool link together in 90 °).The end of strut 13 passes through table folder 15
It is fixedly connected with the fixed link 32 of amesdial 30, the fixed link 32 of amesdial 30 is arranged in table folder 15, screws table folder 15
Bolt makes amesdial 30 be fixed in table folder 15.
Before stress state measurement is carried out to rail 2, when micro-displacement measuring device 1 is initially installed, fixing device
The measuring staff 31 that relative distance between 10 and mobile device 20 meets amesdial 30 generates suitable initial displacement, in order to calibrated
Really measure the bouncing displacement of rail 2.
Rail-impacting block 3 is installed on the Longkou position of rail 2, and (rail 2 will be blocked during measurement, be referred to as dragon close to truncated position
Mouthful), micro-displacement measuring device 1 and rail-impacting block 3 are when the installation site spacing on rail 20 is maintained between 98~102m, to steel
The measurement effect of rail micro-displacement is best.When the measurement length of rail 2 is greater than or equal to 500m, by least being installed every 500m
A set of micro-displacement measuring device 1 carries out stress state measurement.It is a set of by installing when the measurement length of rail 2 is less than 500m
Micro-displacement measuring device 1 carries out stress state measurement.
When the measurement for carrying out rail micro-displacement, no matter bouncing displacement is much, as long as amesdial 30 measures bouncing displacement
Then think that rail 2 is in zero stress state, and amesdial 30 is unmeasured then thinks that rail 2 is not up to zero stress shape to bouncing displacement
State.The bouncing displacement that amesdial 30 measures varies, this installation position with amesdial 30, rail-impacting block 3 installation position,
The quantity of rail-impacting block 3, the straight Qu Douyou very close relationships for hitting rail number and rail track of rail-impacting block 3.When amesdial 30
When measuring bouncing displacement, rail-impacting block 3 stops hitting the rail 2 for being measured section.
The direction of displacement of rail 2 is consistent when the direction that mobile device 20 is directed toward fixing device 10 is hit with rail-impacting block 3.It is such as attached
Shown in Fig. 8, when rail-impacting block 3 imposes as shown in F in attached drawing impact force from left to right to rail 2, the direction of displacement of rail 2 with
The direction (from left to right) that mobile device 20 is directed toward fixing device 10 is consistent.As shown in Figure 9, when rail-impacting block 3 is imposed to rail 2
As shown in F in attached drawing during impact force from right to left, the direction of displacement of rail 2 is directed toward the side of fixing device 10 with mobile device 20
It is consistent to (from right to left).Mobile device 20 is fixed on when using on rail 2, can be with rail when carrying out rail microdisplacement measurement
2 movement and move, when mobile device 20 is moved to fixing device 10, amesdial 30 will generate reading, if fixed dress
When putting 10 reverse movement, it just will appear fixing device 10 and detached with mobile device 20, so as to cause the position of rail 2 cannot be measured
Move size.
The micro-displacement measuring device 1 that embodiment 1 describes can observe the misalignment of rail 2 by amesdial 30 in real time,
And it can be clearly observed that reversed displacement when rail 2 rebounds so that accurate measure of rail micro-displacement is possibly realized, non-
Often be conducive to when seamless track steel rail is laid with and diffuses, observation gapless line naked eyes when reaching zero stress state are not easy to observe
The reversed micro-displacement arrived, so as to fulfill the accurate judgement of rail zero stress state.
Embodiment 2
As shown in Figure 7, a kind of embodiment of the gapless track microdisplacement measurement method based on 1 described device of embodiment,
Specifically include following steps：
S10) the fixing device for installing 10 on sleeper 5 is provided with amesdial 30 in fixing device 10；
S11) mobile device 20 is installed on rail 2, mobile device 20 includes the baffle set towards 2 length direction of rail
22；The distance between fixing device 10 and mobile device 20 are adjusted, and ensures that the measuring staff 31 of amesdial 30 and 22 plane of baffle are hung down
Directly touch；
S12 destressing) is carried out to rail 2 using rail-impacting block 3, when hitting rail 2 to amesdial 30 by rail-impacting block 3
Measure the bouncing displacement opposite with crash direction, then it is assumed that rail 2 is in zero stress state.If amesdial 30 is relative to first
Beginning installation site is unmeasured to bouncing displacement, then it is assumed that rail 2 is not up to zero stress state.
Mobile device 20 includes the bearing 21 for the inverted u-shaped being mounted on rail 2, and bearing 21 is along 2 width direction of rail
Both sides are provided with mounting hole, and baffle 22 is fixed on the top of bearing 21.Step S11) further comprise：
When adjusting the distance between mobile device 20 and fixing device 10, pass through mounting hole mobile by bolt 2 23
Device 20 is fixed on rail 2.When unclamping bolt 2 23, mobile device 20 can be moved along the length direction of rail 2.
Fixing device 10 includes the inverted u-shaped being made of supporting leg 12 and the crossbeam being connected between two supporting legs 12 11
Fixing tool.Step S10) further comprise：
The bottom of supporting leg 12 is fixed on the vertical bolt 6 of sleeper 5, fixing device 10 and amesdial are connected by strut 13
30, one end of strut 13 is fixed on crossbeam 11, and the other end is fixed with amesdial 30, and is ensured that strut 13 is vertical with crossbeam 11 and connected
Knot.The end of strut 13 is fixedly connected with the fixed link 32 of amesdial 30 by table folder 15.
Step S11) further comprise：
The relative distance between fixing device 10 and mobile device 20 is adjusted, it is suitable to meet the generation of the measuring staff 31 of amesdial 30
The initial displacement of amount.
Rail-impacting block 3 is installed on the Longkou position of rail 2, and (rail 2 will be blocked during measurement, be referred to as dragon close to truncated position
Mouthful), between the installation site spacing of micro-displacement measuring device 1 and rail-impacting block 3 on rail 20 is maintained at 98~102m.Work as rail
When 2 measurement length is greater than or equal to 500m, stress shape is carried out by least installing a set of micro-displacement measuring device 1 every 500m
State measures.When the measurement length of rail 2 is less than 500m, stress state survey is carried out by installing a set of micro-displacement measuring device 1
Amount.The direction of displacement of rail 2 is consistent when the direction that mobile device 20 is directed toward fixing device 10 is hit with rail-impacting block 3.
In step S12) in, when amesdial 30 measures bouncing displacement, rail-impacting block 3 stops hitting the rail for being measured section
2。
When use rail-impacting block 3 is hit, and apparent displacement does not occur to rail 2, micro-displacement measuring device 1 is installed on rail 2
Carry out stress state measurement.31 displacement of measuring staff of amesdial 30 is observed at any time when carrying out 2 stress state of rail and measuring, if reached
Range to measuring staff 31 then adjusts the position of mobile device 20, in order to avoid damage amesdial 30.
The technical solution of the gapless track micro-displacement measuring device described by implementing the specific embodiment of the invention, can produce
Raw following technique effect：
(1) it is generated when the gapless track micro-displacement measuring device of specific embodiment of the invention description utilizes bump rail anti-
Sticking position is moved into row rail stress state measurement, and micro-displacement when can rebound to rail carries out more accurate quantization and measures,
It can ensure that the zero stress state of rail is more uniform；
(2) the gapless track micro-displacement measuring device of specific embodiment of the invention description is simple in structure, easy to operate, real
High with, precision, measurement is not influenced completely by external environment and subjective judgement, can fully realize that rail stress diffuses it is even,
It is accurate, enough；
(3) the gapless track micro-displacement measuring device of specific embodiment of the invention description carries out rail microbit by amesdial
The measurement of shifting, amesdial are set on the securing means so that measure is not influenced completely by rail movement.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention.Though
So the present invention is disclosed as above with preferred embodiment, however is not limited to the present invention.It is any to be familiar with those skilled in the art
Member, in the case where not departing from the Spirit Essence of the present invention and technical solution, all using in the methods and techniques of the disclosure above
Appearance makes technical solution of the present invention many possible changes and modifications or is revised as the equivalent embodiment of equivalent variations.Therefore,
Every content without departing from technical solution of the present invention, technical spirit according to the present invention are made to the above embodiment any simple
Modification, equivalent replacement, equivalence changes and modification still fall within the range of technical solution of the present invention protection.
Claims (10)
1. a kind of gapless track micro-displacement measuring device, which is characterized in that including：
The fixing device (10) being installed on sleeper (5)；
The mobile device (20) being installed on rail (2) can move, the mobile device with the movement of the rail (2)
(20) baffle (22) including being set towards rail (2) length direction；
And the amesdial (30) in the fixing device (10) is set to, measuring staff (31) and the baffle of the amesdial (30)
(22) planar vertical contact；
When carrying out destressing to the rail (2) using rail-impacting block (3), rail (2) is carried out by the rail-impacting block (3)
It hits, until the amesdial (30) measures the bouncing displacement opposite with crash direction, then it is assumed that the rail (2) is in zero
Stress state；If the amesdial (30) is unmeasured to bouncing displacement relative to initial makeup location, then it is assumed that the rail
(2) it is not up to zero stress state.
2. gapless track micro-displacement measuring device according to claim 1, it is characterised in that：Mobile device (20) packet
Include the bearing (21) of the inverted u-shaped on the rail (2), both sides of the bearing (21) along rail (2) width direction
Mounting hole is provided with, the mobile device (20) is fixed on rail (2) across mounting hole by bolt two (23), the gear
Plate (22) is fixed on the top of the bearing (21)；The bolt two (23) is unclamped, the mobile device (20) can be along the steel
The length direction movement of rail (2).
3. gapless track micro-displacement measuring device according to claim 2, it is characterised in that：The baffle (22) is using glass
Glass plate, the amesdial (30) have reversed displacement measurement function.
4. according to claim 1,2 or 3 any one of them gapless track micro-displacement measuring devices, it is characterised in that：It is described solid
Determine device (10) including the inverted u-shaped being made of supporting leg (12) and the crossbeam (11) being connected between two supporting legs (12) to consolidate
Determine tooling；The bottom of the supporting leg (12) and the vertical bolt (6) on the sleeper (5) are fixed, and the fixing device (10) is also wrapped
It includes one end to be fixed on the crossbeam (11), the other end and the amesdial (30) fixed strut (13), the strut (13)
It is vertically connected to the crossbeam (11).
5. gapless track micro-displacement measuring device according to claim 4, it is characterised in that：The end of the strut (13)
It is fixedly connected by table folder (15) with the fixed link (32) of the amesdial (30).
6. according to claim 1,2,3 or 5 any one of them gapless track micro-displacement measuring devices, it is characterised in that：When right
Before the rail (2) carries out stress state measurement, when micro-displacement measuring device (1) is initially installed, the fixing device
(10) relative distance between mobile device (20) meets the suitable initial bit of measuring staff (31) generation of the amesdial (30)
It moves.
7. gapless track micro-displacement measuring device according to claim 6, it is characterised in that：Rail-impacting block (3) installation
In the Longkou position of the rail (2), the micro-displacement measuring device (1) and peace of the rail-impacting block (3) on the rail (20)
Holding position spacing is maintained between 98~102m.
8. according to claim 1,2,3,5 or 7 any one of them gapless track micro-displacement measuring devices, it is characterised in that：When
The measurement length of rail (2) be greater than or equal to 500m when, by every 500m at least install a set of micro-displacement measuring device (1) into
Row stress state measures；When rail (2) measurement length be less than 500m when, by install a set of micro-displacement measuring device (1) into
Row stress state measures.
9. gapless track micro-displacement measuring device according to claim 8, it is characterised in that：When the amesdial (30) is surveyed
When measuring bouncing displacement, the rail-impacting block (3) stops hitting the rail (2) for being measured section.
10. according to claim 1,2,3,5,7 or 9 any one of them gapless track micro-displacement measuring devices, it is characterised in that：
The direction of displacement of rail (2) when the direction that the mobile device (20) is directed toward fixing device (10) is hit with the rail-impacting block (3)
Unanimously.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259229.5A CN108265576A (en) | 2018-03-27 | 2018-03-27 | A kind of gapless track micro-displacement measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810259229.5A CN108265576A (en) | 2018-03-27 | 2018-03-27 | A kind of gapless track micro-displacement measuring device |
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| CN108265576A true CN108265576A (en) | 2018-07-10 |
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