CN215572727U - Floating plate steel rail displacement measuring device - Google Patents
Floating plate steel rail displacement measuring device Download PDFInfo
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- CN215572727U CN215572727U CN202122297401.6U CN202122297401U CN215572727U CN 215572727 U CN215572727 U CN 215572727U CN 202122297401 U CN202122297401 U CN 202122297401U CN 215572727 U CN215572727 U CN 215572727U
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Abstract
The utility model provides a floating plate rail displacement measuring device, comprising: the device comprises a fixed rod support, an inclination angle sensor, a laser displacement sensor, a movable rod, a laser displacement sensor reflector, a fixed rod and a movable rod support; the fixed rod support is used for being fixed on a steel rail, and one end of the fixed rod is hinged with the fixed rod support, so that the fixed rod and the fixed rod support can rotate relatively without relative displacement; the inclination angle sensor and the laser displacement sensor are arranged on the movable rod, and a reflecting plate of the laser displacement sensor is fixed on the fixed rod; one end of the movable rod is connected with the other end of the fixed rod and can move in the fixed rod along the axial direction; the moving rod support is used for being fixed on the tunnel wall, and the other end of the moving rod is hinged with the moving rod support, so that the moving rod and the moving rod support can rotate relatively without relative displacement.
Description
Technical Field
The utility model relates to the technical field of rail transit, in particular to a floating plate steel rail displacement measuring device.
Background
With the rapid development of economy, the urban land contradiction is increasingly prominent, so that when urban rails are designed, lines inevitably pass through special sections such as schools, hospitals and concert halls. The floating plate track structure well meets the requirements of vibration and noise reduction in special areas, and is widely applied in China.
In order to guarantee that the operation safety and the vibration reduction effect are considered, the related industry standard of the floating slab technology restricts the displacement of the steel rail of the floating slab track when the train passes through the floating slab track. Meanwhile, the change rule of the displacement of the steel rail in the transition region between the floating slab track bed and other track forms is known, and the optimization of the arrangement scheme of the floating slab vibration isolator is facilitated. Therefore, it is essential to accurately measure the rail displacement of the floating plate rail.
There are two main components at floating plate track rail displacement, displacement that isolator compression arouses on the one hand, displacement that fastener compression arouses on the other hand, and traditional measuring method is to use displacement sensor to measure above-mentioned two components respectively, then adds two components and synthesizes and obtain the rail displacement waveform, and its method mainly has following problem:
(1) usually, because the testing position is limited, the displacement caused by the compression of the vibration isolator needs to be measured at the edge of the floating plate, and the floating plate is supposed not to generate elastic deformation during the measurement, at the moment, the displacement value measured at the edge of the floating plate is approximate to the displacement of the floating plate at the measuring point, but actually, because the floating plate generates elastic deformation when being loaded, the displacement at the edge of the floating plate is different from the displacement of the vibration isolator, and the approximately introduced error influences the measurement accuracy;
(2) in the traditional method, two displacement sensors are required to be installed for measuring the displacement of the steel rail at one position, and four displacement sensors are required to be installed if the vertical displacement and the transverse displacement need to be measured simultaneously. The displacement sensor is complex to install, and the testing efficiency is not improved easily.
Therefore, new techniques and devices are needed to at least partially address the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the floating plate steel rail measurement, the measuring device capable of directly measuring the displacement of the floating plate steel rail is designed, and the measuring device is characterized in that the absolute displacement of the floating plate steel rail can be directly measured, the integration degree is high, and the field installation is convenient.
According to an aspect of the present invention, there is provided a floating plate rail displacement measuring apparatus, comprising:
the device comprises a fixed rod support, an inclination angle sensor (8), a laser displacement sensor (9), a movable rod (10), a laser displacement sensor reflector (11), a fixed rod (12) and a movable rod support (16);
the fixed rod support is used for being fixed on a steel rail, and one end of a fixed rod (12) is hinged with the fixed rod support, so that the fixed rod (12) and the fixed rod support can rotate relatively without relative displacement;
the inclination angle sensor (8) and the laser displacement sensor (9) are arranged on the movable rod (10), and the laser displacement sensor reflecting plate (11) is fixed on the fixed rod (12); one end of the movable rod (10) is connected with the other end of the fixed rod (12) and can move in the fixed rod along the axial direction;
the moving rod support is used for being fixed on the tunnel wall, and the other end of the moving rod (10) is hinged with the moving rod support, so that the moving rod (10) and the moving rod support can rotate relatively without relative displacement.
According to an embodiment of the utility model, the floating plate rail displacement measuring device further comprises a leveling screw (15) provided on the travel bar support (16).
According to the embodiment of the utility model, the hinge joint of the fixed rod (12) and the movable rod (10) and the movable rod support (16) is realized by a revolute pair.
According to an embodiment of the utility model, the tilt sensor (8) and the laser displacement sensor (9) are arranged on the side of the moving bar (10) close to the tunnel wall.
According to the embodiment of the utility model, one end of the movable rod (10) is sleeved on the other end of the fixed rod (12).
The floating plate steel rail displacement measuring device has the characteristics of capability of measuring absolute displacement of the floating plate steel rail, high integration degree, convenience in field installation and the like. The device can be applied to measurement of displacement of the steel rails of various floating plates, measurement accuracy is improved, test difficulty is reduced, and test efficiency is improved.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. The objects and features of the present invention will become more apparent in view of the following description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a specific application of a floating plate rail displacement measurement apparatus according to an embodiment of the present invention; and
fig. 2 is a partially enlarged schematic structural view of a floating plate rail displacement measuring device according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings, but the present invention is not limited thereto.
FIG. 1 is a schematic diagram of a specific application of a floating plate rail displacement measurement apparatus according to an embodiment of the present invention; fig. 2 is a partially enlarged schematic structural view of a floating plate rail displacement measuring device according to an embodiment of the present invention. Referring to fig. 1 and 2, a floating plate rail displacement measuring device 7 according to an embodiment of the present invention may be used to measure the displacement of a floating plate rail. As shown in fig. 1, the floating slab steel rail is disposed in a tunnel, and may include a steel rail 1, a vibration isolator 3, and a floating slab 4, and the steel rail 1 is disposed on the floating slab 4. One end of the floating plate rail displacement measuring device 7 is fixed on the rail 1, and the other end is fixed on the tunnel wall 5.
Referring to the drawings, a floating plate rail displacement measuring apparatus according to an embodiment of the present invention may include a fixed bar support, a tilt sensor 8, a laser displacement sensor 9, a moving bar 10, a laser displacement sensor reflector 11, a fixed bar 12, and a moving bar support 16.
The travel bar support 16 is intended to be fixed to the tunnel wall, for example by gluing it with a strong glue. The other end of the moving bar 10 is hinged to the moving bar support so that the moving bar 10 and the moving bar support can be relatively rotated without relative displacement therebetween. In addition, a leveling screw 15 is provided on the travel bar support 16 for adjusting the level of the floating plate rail displacement measuring device 7. The articulation of the travel bar 10 with the travel bar support 16 can be achieved by means of a revolute pair 14. Other suitable specific connection means may of course be used.
A rod support (not shown) is used to attach to the rail. Similar to the travel bar support 16, the rail may be bonded, for example, using super glue. In addition, the bottom of the support can be subjected to insulation treatment by using an insulating bakelite plate. Similarly, one end of the fixing rod 12 is hinged with the fixing rod holder so that the fixing rod 12 and the fixing rod holder can relatively rotate without relative displacement therebetween.
One end of the moving bar 10 is connected to the other end of the fixed bar 12 and is able to move axially within the fixed bar, for example the two may be sleeved together, whereby the fixed bar provides a guide for the moving bar movement. The tilt sensor 8 and the laser displacement sensor 9 are arranged on a moving rod 10. More specifically, the tilt sensor 8 and the laser displacement sensor 9 are arranged on the side of the moving rod 10 close to the tunnel wall, so that the center of gravity of the device is close to the end of the tunnel wall, and the device is prevented from bending. The inclination angle sensor is used for measuring the rotation angle of the device caused by the displacement of the steel rail. The laser displacement sensor is used for measuring the displacement of the relative movement of the fixed rod and the movable rod of the device caused by the displacement of the steel rail. The laser displacement sensor reflector 11 is fixed on the fixing rod 12 and provides a measuring surface for the laser displacement sensor.
The device can be processed by using light materials such as aluminum alloy and the like, so that the device has enough rigidity, reduces the mass and is convenient to carry. After the measuring point is selected, one end of the device is fixed with the steel rail by using super glue. The travel rods are stretched to bring the device travel rod supports into contact with the tunnel wall while the device is held substantially horizontal and then secured to the tunnel wall. And adjusting a nut on a leveling screw at the tunnel wall end of the adjusting device to level according to the output of the inclination angle sensor. And measuring the distance between one end of the device connected with the steel rail and the center of the revolute pair 14 at the wall end of the tunnel. The laser displacement sensor and the inclination angle sensor are connected to data acquisition equipment through a sensor wire 13, and output signals of the sensors when a train passes are recorded.
When a train passes through, the steel rail generates vertical and horizontal displacement, the vertical and horizontal displacement can be calculated by utilizing the output of the laser displacement sensor and the inclination angle sensor, and the calculation formula is as follows:
in the formula: x is the horizontal displacement of the steel rail;
y is the vertical displacement of the steel rail;
l is the initial length of the device when the train does not pass through, and is obtained by measuring after the device is installed;
delta l is the length variation of the device when the train passes through and is measured by a displacement sensor;
and theta is the rotation angle of the device and is measured by the tilt angle sensor.
Although the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, and those skilled in the art can make various changes or modifications without departing from the spirit of the present invention.
Claims (5)
1. A floating plate rail displacement measurement device, comprising: the device comprises a fixed rod support, an inclination angle sensor (8), a laser displacement sensor (9), a movable rod (10), a laser displacement sensor reflector (11), a fixed rod (12) and a movable rod support (16);
the fixed rod support is used for being fixed on a steel rail, and one end of a fixed rod (12) is hinged with the fixed rod support, so that the fixed rod (12) and the fixed rod support can rotate relatively without relative displacement;
the inclination angle sensor (8) and the laser displacement sensor (9) are arranged on the movable rod (10), and the laser displacement sensor reflecting plate (11) is fixed on the fixed rod (12); one end of the movable rod (10) is connected with the other end of the fixed rod (12) and can move in the fixed rod along the axial direction;
the moving rod support is used for being fixed on the tunnel wall, and the other end of the moving rod (10) is hinged with the moving rod support, so that the moving rod (10) and the moving rod support can rotate relatively without relative displacement.
2. The floating plate rail displacement measurement device of claim 1, further comprising a leveling screw (15) disposed on the travel bar support (16).
3. The floating plate rail displacement measuring device of claim 1, wherein the articulation of the fixed bar (12) to the fixed bar support and the articulation of the moving bar (10) to the moving bar support (16) is achieved by a revolute pair.
4. The floating plate rail displacement measuring device according to claim 1, characterized in that the tilt sensor (8) and the laser displacement sensor (9) are arranged on the side of the moving bar (10) close to the tunnel wall.
5. The floating plate rail displacement measuring device of claim 1, wherein one end of the moving rod (10) is fitted over the other end of the fixed rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122297401.6U CN215572727U (en) | 2021-09-18 | 2021-09-18 | Floating plate steel rail displacement measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122297401.6U CN215572727U (en) | 2021-09-18 | 2021-09-18 | Floating plate steel rail displacement measuring device |
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| Publication Number | Publication Date |
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| CN215572727U true CN215572727U (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122297401.6U Active CN215572727U (en) | 2021-09-18 | 2021-09-18 | Floating plate steel rail displacement measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355829A (en) * | 2022-08-18 | 2022-11-18 | 深圳大学 | Displacement measuring device and method for shock insulation support |
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2021
- 2021-09-18 CN CN202122297401.6U patent/CN215572727U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115355829A (en) * | 2022-08-18 | 2022-11-18 | 深圳大学 | Displacement measuring device and method for shock insulation support |
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