CN208915183U - Rail bottom formula shear force sensor applied to railway detection, metering - Google Patents
Rail bottom formula shear force sensor applied to railway detection, metering Download PDFInfo
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- CN208915183U CN208915183U CN201821741316.6U CN201821741316U CN208915183U CN 208915183 U CN208915183 U CN 208915183U CN 201821741316 U CN201821741316 U CN 201821741316U CN 208915183 U CN208915183 U CN 208915183U
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- shear force
- force sensor
- rail
- metering
- mounting plate
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Abstract
The utility model provides a kind of rail bottom formula shear force sensor applied to railway detection, metering, it is characterized by: being fixed with a pair of of mounting plate between rail and a pair of adjacent sleeper, shear force sensor is disposed between the pair of mounting plate, the upward arc in the middle part of the shear force sensor is convex and contradicts the bottom surface of the rail, it can be bent with the bending of the rail, so as to measure the shearing force that the rail is born.Using the rail bottom formula shear force sensor provided by the utility model applied to railway detection, metering, it is no longer necessary to be punched on rail, because the security risk of rail damage may be not present, there is greatly progress meaning.
Description
Technical field
The utility model relates to a kind of rail bottom formula shear force sensors applied to railway detection, metering.
Background technique
With the high speed development of nation-building, the continuous improvement of national economy, the increasing of railway freight transport power, to railway
The guarantee of transportation safety is also most important.
The overload of railway freight car, unbalance loading are to the very big hidden danger of the security presence of transport, therefore, in order to ensure the peace of transport
Entirely, the detection device of overload, unbalance loading is installed on railway；The accurate weight of train in order to obtain is equipped with track scale equipment,
Weight detecting is carried out to rolling stock.
Accurate gauge check data in order to obtain are all often to set up one with independent in rail track
The load carrier (as shown in Figure 1) of rail 11, and it is equipped with pressure sensor 12 and instrument, to be adopted to the weight signal of vehicle
Collection calculates, but this structure seriously limits the travel speed of train, since rail is independent in bearing structure, with both ends butted line
There are rail gaps for road rail, for the accuracy and traffic safety of measurement, when train passes through this section, need to be decelerated to 15 public affairs
In/therefore hour is hereinafter, greatly reduce conevying efficiency.
In order to adapt to detection of the railroad train in main track high-speed cruising, Super leaning load detection device is introduced (such as Fig. 2 institute
Show), it is directly installed on existing line, due to not having the individual mechanical structure of rail, platen pressure sensor 22 is directly pacified
On concrete grey pillow 23, when train high speed passes through this detection interval, security implication is not had to driving.But due to carrying machine
Rail 21 above structure be it is continuous, when train passes through load carrier, wheel certainly will be will cause in upper and lower load carrier
Two sections generate certain vertical stress component, in this way, certain influence is just brought to the accuracy of detection, therefore, in carrying machine
At the steel rail web of structure, on two positions that wheel is upper and lower, it is also necessary to punch (i.e. mounting hole) respectively, be cut for installing detection
The axial pin type sensor 13 of shear force signal is superimposed, to eliminate steel for acquiring the shearing force of vertical direction, and with pressure signal
Rail vertical stress component bring influences, to improve detection accuracy.
It is above two in the prior art, in order to install axial pin type sensor 13, require to make a call to one in steel rail web position
Diameter is the mounting hole of 27mm or so, and then sensor is filled in, is tightened.The installation method of this filling type, to mounting hole
Required precision is high, if after slightly having the use of deviation or a period of time, mounting hole deforms, meeting by extrusion abrasion
The discontinuity of sensor is caused, to influence detection accuracy.
Moreover, needing to beat multiple mounting holes on rail to improve detection accuracy to install shear force sensor, Lai Zucheng
More detection intervals, to improve measurement accuracy.Mounting hole is more, and the security risk caused by rail is also more, by certain
Time rolls, it is easier to mark of break or even fracture occur at mounting hole, this brings very big hidden danger to traffic safety.
Utility model content
The purpose of this utility model is that: a kind of rail bottom formula shear force sensor applied to railway detection, metering, solution are provided
Certainly the above-mentioned technical problems in the prior art.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of rail bottom formula shear force sensor applied to railway detection, metering, it is characterised in that: adjacent with a pair in rail
It is fixed with a pair of of mounting plate between sleeper, shear force sensor, the shear force sensor are disposed between the pair of mounting plate
The upward arc in middle part it is convex and contradict the bottom surface of the rail.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: each mounting plate
Upper direction along ng a path is equipped with rail support groove, and the both ends of the shear force sensor are embedded in the rail support groove.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: the mounting plate is being held
The two side portions of track slot are designed with fixation hole, and the mounting plate is fixedly connected by the fixation hole with rail and sleeper.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: each mounting plate
It is made of rectangular first position block and L-shaped second position block, the first position block and the second position block split
After form rectangular notch, the end of the shear force sensor is placed in the notch and positions.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: the shear force sensor
The strain gauge being fixed at the neutral axis of bearing beam including bearing beam and in the horizontal direction.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: the strain gauge has
Two or more, and be in symmetrically and evenly to arrange using the vertical central axes of bearing beam as line of symmetry.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: the strain gauge only has
One, and be arranged on the vertical central axes of bearing beam.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: the bearing beam and peace
Loading board is integral structure or separate structure.
The rail bottom formula shear force sensor for being applied to railway detection, metering, it is characterised in that: the strain gauge is electricity
Hinder foil gauge or fiber grating.
Compared with prior art, the utility model by adopting the above technical scheme has advantages in that sensor
Installation no longer needs to punch on rail, because the security risk of rail damage may be not present, has greatly progress meaning.
Detailed description of the invention
Fig. 1 is the mounting structure schematic diagram of the prior art one；
Fig. 2 is the mounting structure schematic diagram of the prior art two；
Fig. 3 is the mounting structure schematic diagram of rail bottom formula shear force sensor；
Fig. 4 is the top view of one of case structure of rail bottom formula shear force sensor；
Fig. 4 A is the top view of another case structure of rail bottom formula shear force sensor；
Fig. 5 is one of paste position schematic diagram of strain gauge；
Fig. 6 is another paste position schematic diagram of strain gauge.
Description of symbols: independent rail 11；Pressure sensor 12；Axial pin type shear force sensor 13；Rail 21；Board-like pressure
Force snesor 22；Concrete grey pillow 23；Rail 31；Sleeper 32；Mounting plate 33；Rail support groove 331；The hole A 332；The hole B 333；First
Position block 334；Second position block 335；Notch 336；Shear force sensor 34；Bearing beam 341；Strain gauge 342.
Specific embodiment
Hereinafter reference will be made to the drawings is described in detail by way of example and not limitation some specific embodiments of the present invention.
Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these
Attached drawing is not necessarily to be depicted true to scale.
As shown in Figure 3, Figure 4, the utility model provides a kind of rail bottom formula shearing sensing applied to railway detection, metering
Device has a pair of of the mounting plate 33 being fixed between rail 31 and a pair of adjacent sleeper 32 and fixes in the pair of mounting plate
The upward arc in middle part of shear force sensor 34 between 33, the shear force sensor 34 is convex and contradicts the bottom surface of the rail 31,
It is bent with the bending of the rail 31, so as to measure the shearing force that the rail 31 is born.
As shown in figure 4, direction along ng a path is equipped with rail support groove 331, the shear force sensor 34 on each mounting plate 33
Both ends be embedded in the rail support groove 331, limit its axial position；The mounting plate 33 rail support groove 331 two side portions all
Equipped with fixation hole, there are two types of common types for the fixation hole, and one is every sides of each mounting plate 33 332 (Φ of the hole A
25mm) two, another kind is that every side of each mounting plate 33 has one, the hole B 333 (Φ 33mm)；Two kinds of holes can exist simultaneously
(as shown in Figure 4), can also be only a kind of；The diameter in both holes can also be determined specifically according to the actual situation.
As shown in Figure 4 A, be rail bottom formula shear force sensor 34 another case structure top view, it is different from Fig. 4 it
Place by: each mounting plate 33 is made of rectangular first position block 334 and L-shaped second position block 335, first
Rectangular notch 336, the end of the shear force sensor 34 are formed after 335 split of position block 334 and the second position block
It is placed in the notch 336 and positions, and the bottom surface with rail 31 is not in contact；In the present embodiment, each described first
The hole A 332 there are two being all provided on position block 334 and each second position block 335, it is of course also possible to be changed to be respectively provided with one
A hole B 333, can also be changed to set that there are two the hole A 332 and a holes B 333 simultaneously.
It as shown in Figure 5, Figure 6, is the side view of shear force sensor 34, the shear force sensor 34 is by between both ends
Bearing beam 341 and the strain gauge 342 being fixed at the neutral axis of bearing beam 341 in the horizontal direction composition, the strain gauge 342
Can be even more for two, and be in symmetrically and evenly to arrange (such as Fig. 5 institute using the vertical central axes of bearing beam 341 as line of symmetry
Show), the strain gauge 342 can also be with only one, and is arranged on the vertical central axes of bearing beam 341 (as shown in Figure 6).
In above-described embodiment, the bearing beam 341 can be integral structure with mounting plate 33, be also possible to separate structure.
Wherein, the strain gauge 342 can be resistance strain gage or fiber grating.
When the utility model is installed, strain gauge 342 is pasted on bearing beam 341, is then placed in bearing beam 341
Between a pair of of mounting plate 33, then by mounting plate 33 by screw and fastener fixing between rail 31 and sleeper 32, make load
The upward arc in the middle part of beam 341 is convex and contradicts the bottom surface of the rail 31, that is, completes installation.
Using the rail bottom formula shear force sensor 34 provided by the utility model applied to railway detection, metering, it is no longer necessary to
It is punched on rail 31, because the security risk of the damage of rail 31 may be not present, there is greatly progress meaning.
It is described above to be merely exemplary for the utility model, and not restrictive, those of ordinary skill in the art
Understand, without departing from the spirit and scope defined by the claims, can many modifications may be made, variation or it is equivalent, but
It falls within the protection scope of the utility model.
Claims (9)
1. a kind of rail bottom formula shear force sensor applied to railway detection, metering, it is characterised in that: in rail and a pair of adjacent rail
It is fixed with a pair of of mounting plate between pillow, shear force sensor is disposed between the pair of mounting plate, the shear force sensor
The upward arc in middle part is convex and contradicts the bottom surface of the rail.
2. the rail bottom formula shear force sensor according to claim 1 applied to railway detection, metering, it is characterised in that: every
Direction along ng a path is equipped with rail support groove on a mounting plate, and the both ends of the shear force sensor are embedded in the rail support groove.
3. the rail bottom formula shear force sensor according to claim 2 applied to railway detection, metering, it is characterised in that: institute
It states mounting plate and is designed with fixation hole in the two side portions of rail support groove, the mounting plate passes through the fixation hole and rail and sleeper
It is fixedly connected.
4. the rail bottom formula shear force sensor according to claim 1 applied to railway detection, metering, it is characterised in that: every
A mounting plate is made of rectangular first position block and L-shaped second position block, the first position block and second
Rectangular notch is formed after position block split, the end of the shear force sensor is placed in the notch and positions.
5. the rail bottom formula shear force sensor according to claim 1 applied to railway detection, metering, it is characterised in that: institute
State the strain gauge that shear force sensor includes bearing beam and is fixed at the neutral axis of bearing beam in the horizontal direction.
6. the rail bottom formula shear force sensor according to claim 5 applied to railway detection, metering, it is characterised in that: institute
Stating strain gauge has two or more, and is in symmetrically and evenly to arrange using the vertical central axes of bearing beam as line of symmetry.
7. the rail bottom formula shear force sensor according to claim 5 applied to railway detection, metering, it is characterised in that: institute
State strain gauge only one, and be arranged on the vertical central axes of bearing beam.
8. the rail bottom formula shear force sensor according to claim 5 applied to railway detection, metering, it is characterised in that: institute
Stating bearing beam and mounting plate is integral structure or separate structure.
9. the rail bottom formula shear force sensor according to claim 5 applied to railway detection, metering, it is characterised in that: institute
Stating strain gauge is resistance strain gage or fiber grating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741316.6U CN208915183U (en) | 2018-10-25 | 2018-10-25 | Rail bottom formula shear force sensor applied to railway detection, metering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741316.6U CN208915183U (en) | 2018-10-25 | 2018-10-25 | Rail bottom formula shear force sensor applied to railway detection, metering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208915183U true CN208915183U (en) | 2019-05-31 |
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ID=66710561
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821741316.6U Active CN208915183U (en) | 2018-10-25 | 2018-10-25 | Rail bottom formula shear force sensor applied to railway detection, metering |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514277A (en) * | 2019-06-28 | 2019-11-29 | 北京东方瑞威科技发展股份有限公司 | A kind of fibre optical sensor for railway big load dynamic weighting |
-
2018
- 2018-10-25 CN CN201821741316.6U patent/CN208915183U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514277A (en) * | 2019-06-28 | 2019-11-29 | 北京东方瑞威科技发展股份有限公司 | A kind of fibre optical sensor for railway big load dynamic weighting |
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