CN203890821U - Displacement meter for measuring displacement of high-speed railway steel rail in vertical direction and horizontal direction - Google Patents
Displacement meter for measuring displacement of high-speed railway steel rail in vertical direction and horizontal direction Download PDFInfo
- Publication number
- CN203890821U CN203890821U CN201420016938.8U CN201420016938U CN203890821U CN 203890821 U CN203890821 U CN 203890821U CN 201420016938 U CN201420016938 U CN 201420016938U CN 203890821 U CN203890821 U CN 203890821U
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- China
- Prior art keywords
- displacement
- speed railway
- sensing element
- rail
- displacement meter
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- 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.)
- Expired - Lifetime
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 title abstract description 7
- 239000010959 steel Substances 0.000 title abstract description 7
- 238000009434 installation Methods 0.000 claims abstract description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 239000011888 foil Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Abstract
The utility model provides a displacement meter for measuring displacement of a high-speed railway steel rail in the vertical direction and the horizontal direction. The displacement meter comprises an elastic sensitive element and resistance strain gauges which are arranged on the surfaces of the elastic sensitive element, wherein the resistance strain gauges are arranged on the upper surface and the lower surface of the elastic sensitive element. The thickness of a measured surface of the displacement meter is 2mm, the installation space is only 3cm, and the displacement meter can be installed in a space below the steel rail and can be used for measuring the vibrating displacement of the high-speed railway steel rail and a subway steel rail.
Description
Technical field
The utility model relates to sensor field, relates in particular to a kind of strain-type displacement meter of measuring rail in high speed railway vertical direction and horizontal direction.
Background technology
When high-speed railway moves, due to the friction of rail and wheel track, rail can produce vibration.If train is excessive through vertical displacement and the horizontal movement of out-of-date rail, train just has the danger of derailing, causes serious derail accident.
But when measuring the vertical displacement of rail, the top of rail is used for and wheel-rail friction, sensor installation is inconvenient, and below rail, sensor installation is better, does not allow to be subject to the impact of train process.But rail below limited space, the vertical height of installing space only has 4cm left and right, is far smaller than the size of traditional bit displacement sensor.
The sensor of at present traditional measurement displacement mainly contains following several, as post rod type displacement meter, current vortex displacement meter, guy type displacement meter etc., the horizontal movement of these several traditional displacement sensor rail is no problem, but due to vertical direction installing space limited (generally only about 4cm), and traditional several displacement transducers all cannot installed in narrow space like this.So when measuring high-speed railway vertical displacement, traditional displacement transducer cannot use.Thereby caused the problem that is not easy to use the vertical displacement of traditional displacement sensor high-speed railway.
Summary of the invention
The utility model cannot be measured the problem of high-speed railway vertical displacement for solving traditional displacement transducer, provide a kind of displacement meter of measuring rail in high speed railway vertical direction and horizontal direction to become meter, the installing space that the displacement meter of this measurement rail in high speed railway vertical direction and horizontal direction becomes meter only needs 3cm left and right, and the vibration displacement that can be used in rail in high speed railway and rail of subway is measured.
Concrete, this measures the displacement meter of rail in high speed railway vertical direction and horizontal direction, comprise elastic sensing element and be arranged on the lip-deep resistance strain gage of described elastic sensing element, described resistance strain gage is arranged on the upper surface and soffit of described elastic sensing element.The quantity of the resistance strain gage that the upper surface of described elastic sensing element is installed is 2.
The quantity of the resistance strain gage that the soffit of described elastic sensing element is installed is 2.
Preferably, the thickness of described elastic sensing element is 2mm.The installation width that the displacement meter of described measurement rail in high speed railway vertical direction and horizontal direction becomes meter is 30mm.
Preferably, described 2 electronics foil gauges are arranged on the middle part of described elastic sensing element side by side.
Preferably, described resistance strain gage is for carrying wire type foil gauge.The displacement meter of described measurement rail in high speed railway vertical direction and horizontal direction becomes meter and adopts full-bridge method to measure steel rail displacement.
It is 2mm that the displacement meter that the utility model provides is measured face thickness, and installing space only needs 3cm just passable, can be arranged on the lower side space of rail, and the vibration displacement that can be used in rail in high speed railway is measured.
Accompanying drawing explanation
Fig. 1 is surface structure schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further explained, as shown in Figure 1, a kind of displacement meter of measuring rail in high speed railway vertical direction and horizontal direction comprises elastic sensing element 1 and is arranged on the lip-deep resistance strain gage 2 of elastic sensing element 1, resistance strain gage 2 is arranged on the upper surface and the symmetric position on soffit of elastic sensing element 1, as shown in Figure 1, be the installation site of the resistance strain gage 2 of the upper surface of elastic sensing element 1.The quantity of the resistance strain gage 2 that the upper surface of elastic sensing element 1 is installed is 2.
The position of resistance strain gage and the position of upper surface that the soffit of elastic sensing element 1 is installed are symmetrical, therefore omit accompanying drawing, and the quantity of the resistance strain gage 2 that particular location can be installed with reference to the soffit of accompanying drawing 1. elastic sensing elements 1 is 2.Can form full bridge measurement method like this.
The thickness of elastic sensing element 1 is 2mm, and in the present embodiment, the installation width of measuring the displacement meter change meter of rail in high speed railway vertical direction and horizontal direction is 30mm.
Resistance strain gage 2 is for carrying wire type foil gauge.Form full bridge measurement method, the displacement meter of measuring rail in high speed railway vertical direction and horizontal direction becomes meter and adopts full-bridge method to measure steel rail displacement.
The material of elastic sensing element 1 adopts the material that can automatically recover after good springiness, bending, and the material of elastic sensing element 1 adopts No. 45 carbon steels in the present embodiment.
It is 2mm that the displacement meter that the utility model provides is measured face thickness, and its installing space only needs 3cm just passable, in use, can be arranged on the lower side space of rail, and the vibration displacement that can be used in rail in high speed railway and rail of subway is measured.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a displacement meter of measuring rail in high speed railway vertical direction and horizontal direction, it is characterized in that: it comprises elastic sensing element and is arranged on the lip-deep resistance strain gage of described elastic sensing element, described resistance strain gage is arranged on the upper surface and soffit of described elastic sensing element, the quantity of the resistance strain gage that the upper surface of described elastic sensing element is installed is 2, the quantity of the resistance strain gage that the soffit of described elastic sensing element is installed is 2, the thickness of described elastic sensing element is 2mm, the installation width that the displacement meter of described measurement rail in high speed railway vertical direction and horizontal direction becomes meter is 30mm.
2. the displacement meter of measurement rail in high speed railway vertical direction according to claim 1 and horizontal direction, is characterized in that: described resistance strain gage is arranged on the surface of described elastic sensing element side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016938.8U CN203890821U (en) | 2014-01-08 | 2014-01-08 | Displacement meter for measuring displacement of high-speed railway steel rail in vertical direction and horizontal direction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420016938.8U CN203890821U (en) | 2014-01-08 | 2014-01-08 | Displacement meter for measuring displacement of high-speed railway steel rail in vertical direction and horizontal direction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203890821U true CN203890821U (en) | 2014-10-22 |
Family
ID=51717244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420016938.8U Expired - Lifetime CN203890821U (en) | 2014-01-08 | 2014-01-08 | Displacement meter for measuring displacement of high-speed railway steel rail in vertical direction and horizontal direction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203890821U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307933A (en) * | 2019-07-16 | 2019-10-08 | 西南交通大学 | A kind of railway vehicle coupler power static demarcating testing stand |
| CN112781654A (en) * | 2020-12-31 | 2021-05-11 | 西南交通大学 | Crack steel rail gap fault detection system |
-
2014
- 2014-01-08 CN CN201420016938.8U patent/CN203890821U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307933A (en) * | 2019-07-16 | 2019-10-08 | 西南交通大学 | A kind of railway vehicle coupler power static demarcating testing stand |
| CN110307933B (en) * | 2019-07-16 | 2024-03-29 | 西南交通大学 | Static calibration test bed for coupler force of railway vehicle |
| CN112781654A (en) * | 2020-12-31 | 2021-05-11 | 西南交通大学 | Crack steel rail gap fault detection system |
| CN112781654B (en) * | 2020-12-31 | 2023-03-17 | 西南交通大学 | Crack steel rail gap fault detection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |