CN211036583U - Floating plate track vertical displacement measuring device - Google Patents
Floating plate track vertical displacement measuring device Download PDFInfo
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- CN211036583U CN211036583U CN201921684402.2U CN201921684402U CN211036583U CN 211036583 U CN211036583 U CN 211036583U CN 201921684402 U CN201921684402 U CN 201921684402U CN 211036583 U CN211036583 U CN 211036583U
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- inner tube
- floating plate
- inner cylinder
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Abstract
The utility model discloses a vertical displacement measurement device of floating plate track, sensor unit mount are between inner tube and urceolus, and the position sets up rationally, can not cause the damage to spring isolator. The baffle limits the inner cylinder to extend out of the upper opening of the outer cylinder. During the use, when the rail received decurrent load, the load that the rail received passes to the inner tube of spring isolator through floating the board, and the compression of inner tube elasticity portion, inner tube elasticity portion drive inner cylinder cover downstream, and the inner tube lower part is fixed and can not produce the displacement on the track basis, and the vertical displacement of the inner cylinder cover of the sensor subassembly measurement of inner tube lower part is the vertical displacement of floating the board promptly. The utility model discloses simple structure, measuring result is accurate, can get rid of because the error that the marginal warpage of floating plate produced reduces because the tunnel lateral wall produces the influence of deformation.
Description
Technical Field
The utility model relates to the field of traffic technology, especially, relate to a vertical displacement measurement device of floating slab track.
Background
The floating slab is a common vibration damping track system, and has strict regulations and related requirements on the vertical displacement of the floating slab under the train operation condition in order to ensure the vibration damping effect of the floating slab under the train operation condition and the train operation safety. The vertical displacement test of the floating plate in the field is an important measure for checking the product quality of the floating plate. The standard specifies that the vertical displacement of the floating slab under the action of the load of the train is not more than 3 mm. Since the floating slab is a structure comprising the whole track system, the vertical displacement of different parts is usually different, from the perspective of standards and structural stress, the part directly related to the wheel track system below the steel rail is the part with the greatest relevance to train operation, and generally speaking, the vertical displacement of the floating slab refers to the vertical displacement of the area below the rail or the area adjacent to the rail.
The existing method for testing the vertical displacement of the floating plate adopts a direct method for measurement, usually adopts a contact sensor or a non-contact sensor, and the method needs to find a measurement reference point as a displacement zero reference point, wherein under the condition of the existing floating plate track structure, the measurement reference point is at the lower end of a tunnel wall, and the vertical displacement of the floating plate at the outer side of a track steel rail is measured by a displacement sensor, as shown in figure 1.
However, this method has the following disadvantages:
one, the sensor is installed at tunnel wall lower extreme, and under the train load effect, tunnel wall itself also can produce complicated displacement, and the displacement at different positions also can be different, and in the actual test, the tunnel wall of the reference point that the sensor installation adopted also can produce certain displacement because of the vibration, also the vertical displacement that the sensor measured on the board that floats is also inaccurate, can receive the influence of sensor installation position vibration displacement.
The existing testing method can only test the vertical displacement of the outer side part of the steel rail of the floating plate, the part is subjected to different displacements generated by different spring mounting parts, and actually the vertical displacement of the floating plate and the vertical displacement caused by the bending deformation of the plate are double influenced, and the vertical displacement is different from the vertical displacement of the floating plate at the lower part of the rail required by actual conditions.
Due to the defects, the vertical displacement of the lower position of the floating plate rail measured by the traditional measuring method actually comprises the vertical displacement of the floating plate, the bending deformation displacement of the floating plate and the vertical displacement of the tunnel wall, but not the real vertical displacement of the lower position of the floating plate rail, and according to statistics, the difference between the data measured by the method for measuring the vertical displacement of the floating plate by using the sensor arranged on the tunnel wall as a reference point and the actual value of the vertical displacement of the lower position of the floating plate rail reaches more than 50%.
The displacement sensors commonly used at present all need a sensor mounting position, namely a mounting base, the base is not fixed relative to a measured point, and the sensor is mounted on the base to accurately test the displacement of the measured point. The floating plate is a unit plate with the spring vibration isolators arranged on the track, the whole track plate moves under the action of train load, and the displacement sensor cannot be arranged on the floating plate. If the sensor is arranged on the tunnel wall on the side of the plate to test the vertical displacement under the floating plate rail, the self-movement of the tunnel wall also has the problems, and if the mounting arm of the sensor is too long, the test result is influenced. If the test points are at the track outside plate edge (conventional test method), the resulting data does not actually represent the displacement under the floating plate track. Finding the proper position by moving or lifting the floating plate when mounting the sensor is also very difficult due to the large volume and mass of the floating plate. Most of the existing displacement sensors are required by certain installation space, and due to the restriction of a floating plate structure and the limitation of the existing sensor structure, no other floating plate vertical displacement testing method capable of obtaining higher precision exists, so that a defect in the existing floating plate track acceptance is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a vertical displacement measurement device of floating slab track to solve the problem that above-mentioned prior art exists, make the vertical displacement measurement result of floating slab accurate.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a floating slab track vertical displacement measuring device, which comprises a spring vibration isolator, wherein the spring vibration isolator comprises an inner cylinder and an outer cylinder, and the inner cylinder is arranged inside the outer cylinder; the inner tube includes top-down fixed connection's interior cover, inner tube elasticity portion and inner tube lower part in proper order, be provided with at least two sets of sensor assembly just on the outer wall of inner tube lower part sensor assembly is located the inner tube with in holding the chamber between the urceolus, sensor assembly is used for measuring the vertical displacement of interior cover, be provided with the baffle in the urceolus, the urceolus upper end is provided with the urceolus upper shed, the urceolus lower extreme is provided with the urceolus under shed, be provided with the baffle opening on the baffle, interior cover is located the below of baffle, the inner tube lower part is followed the urceolus under shed stretches out.
Preferably, the edge of the inner cylinder cover is provided with protruding parts corresponding to the sensor assemblies one to one, the sensor assemblies are three groups, and the sensor assemblies are located on the same circumference.
Preferably, the sensor assembly comprises a mounting base and a displacement sensor, the displacement sensor is fixed on the mounting base, the mounting base is fixed on the lower portion of the inner barrel, and the measuring range of the displacement sensor is matched with the compression amount of the elastic portion of the inner barrel.
Preferably, a locking gasket is arranged at the opening of the baffle, the shape of the locking gasket is matched with that of the opening of the baffle, and the upper surface of the locking gasket and the upper surface of the baffle are located on the same plane.
Preferably, a height-adjusting gasket is arranged between the locking gasket and the inner cylinder cover.
Preferably, the outer cylinder upper opening, the outer cylinder lower opening and the baffle opening are matched with the inner cylinder cover in shape and size, and the outer cylinder upper opening, the outer cylinder lower opening and the baffle opening are arranged in a manner of being overlapped along the axial direction of the outer cylinder.
Preferably, the outer diameter of the inner cylinder elastic part is the same as the outer diameter of the lower part of the inner cylinder, and the size of the inner cylinder cover is larger than the size of the inner cylinder elastic part and the size of the lower part of the inner cylinder.
Preferably, the inner cylinder elastic part is a spring.
The utility model discloses for prior art gain following technological effect:
the utility model discloses a vertical displacement measurement device of floating plate track's sensor unit installs between inner tube and urceolus, and the position sets up rationally, can not cause the damage to spring isolator. The baffle limits the inner cylinder to extend out of the upper opening of the outer cylinder. During the use, when the rail received decurrent load, the load that the rail received passes to the inner tube of spring isolator through floating the board, and the compression of inner tube elasticity portion, inner tube elasticity portion drive inner cylinder cover downstream, and the inner tube lower part is fixed and can not produce the displacement on the track basis, and the vertical displacement of the inner cylinder cover of the sensor subassembly measurement of inner tube lower part is the vertical displacement of floating the board promptly. The utility model discloses simple structure, measuring result is accurate, can get rid of because the error that the marginal warpage of floating plate produced reduces because the tunnel lateral wall produces the influence of deformation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a method for measuring vertical displacement of a floating plate in the prior art;
FIG. 2 is a schematic view of the internal structure of the floating plate rail vertical displacement measuring device of the present invention;
FIG. 3 is a schematic view of the outer barrel of the present invention;
FIG. 4 is a schematic view of the inner barrel structure of the present invention;
wherein: 1-spring vibration isolator, 2-floating plate, 3-displacement sensor, 4-outer cylinder, 5-inner cylinder cover, 6-inner cylinder elastic part, 7-inner cylinder lower part, 8-baffle, 9-outer cylinder upper opening, 10-outer cylinder lower opening, 11-baffle opening, 12-protrusion, 13-mounting base, 14-locking gasket and 15-heightening gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The utility model aims at providing a vertical displacement measurement device of floating slab track to solve the problem that above-mentioned prior art exists, make the vertical displacement measurement result of floating slab accurate.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 2-4: the embodiment provides a floating slab track vertical displacement measuring device which comprises a spring vibration isolator 1, wherein the spring vibration isolator 1 comprises an inner cylinder and an outer cylinder 4, the inner cylinder is arranged inside the outer cylinder 4, and the size of the inner wall of the outer cylinder 4 is larger than that of the outer wall of the inner cylinder; the inner tube includes top-down fixed connection's interior cover 5 in proper order, inner tube elastic component 6 and inner tube lower part 7, be provided with at least two sets of sensor assembly and sensor assembly on the outer wall of inner tube lower part 7 and be located the appearance chamber between inner tube and urceolus 4, sensor assembly is used for measuring the vertical displacement of interior cover 5, be provided with baffle 8 in the urceolus 4, urceolus 4 upper end is provided with urceolus upper shed 9, urceolus 4 lower extreme is provided with urceolus lower shed 10, be provided with baffle opening 11 on the baffle 8, interior cover 5 is located the below of baffle 8, inner tube lower part 7 stretches out from urceolus lower shed 10. The sensor assembly of the floating plate 2 track vertical displacement measuring device of the embodiment is installed between the inner cylinder and the outer cylinder 4, the position is reasonably set, and the spring vibration isolator 1 cannot be damaged. The baffle 8 restricts the extension of the inner cylinder from the upper opening 9 of the outer cylinder. During the use, when the rail received decurrent load, the load that the rail received passes to the inner tube of spring isolator 1 through floating board 2, and inner tube elastic component 6 compresses, and inner tube elastic component 6 drives interior cover 5 downstream, and inner tube lower part 7 is fixed and can not produce the displacement on the track basis, and the vertical displacement of inner cover 5 that the sensor assembly of inner tube lower part 7 measured, be the vertical displacement of floating board 2 promptly. The embodiment has the advantages of simple structure and accurate measurement result, can eliminate errors caused by edge warping of the floating slab 2, and reduces the influence of deformation caused by the side wall of the tunnel.
In this embodiment, the edge of the inner cylinder cover 5 is provided with the protruding portions 12 corresponding to the sensor assemblies one to one, the sensor assemblies are three groups, and the three groups of sensor assemblies are located on the same circumference, the three groups of sensor assemblies avoid measurement result deviation caused by the influence of unbalance loading on the spring vibration isolator 1 during operation, as shown in fig. 2, the protruding portions 12 can completely block the sensor assemblies, and can ensure that the sensor assemblies are prevented from interfering with the position of the outer cylinder 4 when the inner cylinder enters and exits the outer cylinder 4.
In this embodiment, the sensor assembly includes a mounting base 13 and a displacement sensor 3, the displacement sensor 3 is fixed on the mounting base 13, the mounting base 13 is fixed on the lower portion 7 of the inner cylinder in an adhesive manner, and the measuring range of the displacement sensor 3 is matched with the compression amount of the elastic portion 6 of the inner cylinder.
In this embodiment, a locking washer 14 is disposed at the opening of the baffle plate 8, the shape of the locking washer 14 is matched with the shape of the opening of the baffle plate 8, and the upper surface of the locking washer 14 and the upper surface of the baffle plate 8 are located on the same plane. A height-adjusting gasket 15 is arranged between the locking gasket 14 and the inner cylinder cover 5, and the height-adjusting gasket 15 is respectively contacted with the locking gasket 14 and the inner cylinder cover 5 and is used for transmitting the load received by the locking gasket 14 to the inner cylinder cover 5. In this embodiment, the lock washer 14 and the heightening washer 15 are deformed negligibly.
In this embodiment, the outer cylinder upper opening 9, the outer cylinder lower opening 10 and the baffle opening 11 are all matched with the shape and size of the inner cylinder cover 5, and the outer cylinder upper opening 9, the outer cylinder lower opening 10 and the baffle opening 11 are arranged in a manner of overlapping along the axial direction of the outer cylinder 4.
In this embodiment, the outer diameter of the inner cylinder elastic part 6 is the same as the outer diameter of the inner cylinder lower part 7, and the size of the inner cylinder cover 5 is larger than the sizes of the inner cylinder elastic part 6 and the inner cylinder lower part 7. The inner cylinder elastic part 6 is a spring.
When the 2 track vertical displacement measuring device of floating slab of this embodiment installs, at first install sensor unit in inner tube lower part 7, put into urceolus 4 with the inner tube that has sensor unit, and rotate the inner tube 60, make baffle opening 11 not coincide with interior cover 5, baffle 8 in the urceolus 4 can play limiting displacement to the inner tube, will heighten gasket 15 and lock gasket 14 and put to in proper order on interior cover 5, make lock gasket 14 and baffle opening 11 phase-match, lie in floating slab 2 with above-mentioned spring isolator 1, the lower extreme of inner tube is installed on the track basis, the upper end and the floating slab 2 of inner tube are connected, intervene test instrument with displacement sensor 3's wire. The embodiment has the advantages of simple structure and accurate measurement result.
In the embodiment, the compression amount of the spring vibration isolator 1 under the action of train load is tested, so that the vertical dynamic displacement of the floating slab 2 under the rail is obtained. The implementation changes the traditional method for installing the displacement sensor 3 on the side wall of the tunnel, and compared with the traditional method for obtaining the vertical displacement of the floating plate 2 under the track by testing the outer edge of the track, the method is more reliable, can eliminate errors caused by warping of the edge of the floating plate 2, reduce the influence caused by deformation of the side wall of the tunnel and the influence caused by vibration of a sensor installation arm, and has more accurate data. The displacement sensor 3 simple to operate of this embodiment can not cause any damage to 2 structures of floating slab or spring isolator 1 in the test, also can not bring adverse effect to these parts after the test is accomplished, and more importantly adopts the device of this embodiment to solve the difficult problem that can't carry out effective detection to 2 track vertical displacement of floating slab at present.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (8)
1. The utility model provides a vertical displacement measurement device of floating slab track which characterized in that: the spring vibration isolator comprises a spring vibration isolator, wherein the spring vibration isolator comprises an inner cylinder and an outer cylinder, and the inner cylinder is arranged in the outer cylinder; the inner tube includes top-down fixed connection's interior cover, inner tube elasticity portion and inner tube lower part in proper order, be provided with at least two sets of sensor assembly just on the outer wall of inner tube lower part sensor assembly is located the inner tube with in holding the chamber between the urceolus, sensor assembly is used for measuring the vertical displacement of interior cover, be provided with the baffle in the urceolus, the urceolus upper end is provided with the urceolus upper shed, the urceolus lower extreme is provided with the urceolus under shed, be provided with the baffle opening on the baffle, interior cover is located the below of baffle, the inner tube lower part is followed the urceolus under shed stretches out.
2. The floating plate rail vertical displacement measurement device of claim 1, wherein: the edge of inner tube lid be provided with the protruding portion of sensor module one-to-one, sensor module is three groups, and three groups sensor module is located same circumference.
3. The floating plate rail vertical displacement measurement device of claim 1, wherein: the sensor assembly comprises an installation base and a displacement sensor, the displacement sensor is fixed on the installation base, the installation base is fixed on the lower portion of the inner barrel, and the measuring range of the displacement sensor is matched with the compression amount of the elastic portion of the inner barrel.
4. The floating plate rail vertical displacement measurement device of claim 1, wherein: the opening part of baffle is provided with the lock washer, the shape of lock washer with the opening shape phase-match of baffle, the upper surface of lock washer with the upper surface of baffle is located the coplanar.
5. The floating plate rail vertical displacement measurement device of claim 4, wherein: and a height-adjusting gasket is arranged between the locking gasket and the inner cylinder cover.
6. The floating plate rail vertical displacement measurement device of claim 1, wherein: the outer barrel upper opening, the outer barrel lower opening and the baffle opening are matched with the inner barrel cover in shape and size, and the outer barrel upper opening, the outer barrel lower opening and the baffle opening are arranged in a manner of being overlapped along the axial direction of the outer barrel.
7. The floating plate rail vertical displacement measurement device of claim 1, wherein: the outer diameter of the inner cylinder elastic part is the same as the outer diameter of the lower part of the inner cylinder, and the size of the inner cylinder cover is larger than the sizes of the inner cylinder elastic part and the lower part of the inner cylinder.
8. The floating plate rail vertical displacement measurement device of claim 1, wherein: the elastic part of the inner cylinder is a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921684402.2U CN211036583U (en) | 2019-10-10 | 2019-10-10 | Floating plate track vertical displacement measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921684402.2U CN211036583U (en) | 2019-10-10 | 2019-10-10 | Floating plate track vertical displacement measuring device |
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| CN211036583U true CN211036583U (en) | 2020-07-17 |
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| CN201921684402.2U Active CN211036583U (en) | 2019-10-10 | 2019-10-10 | Floating plate track vertical displacement measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552263A (en) * | 2019-10-10 | 2019-12-10 | 同济大学 | Floating plate track vertical displacement measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110552263A (en) * | 2019-10-10 | 2019-12-10 | 同济大学 | Floating plate track vertical displacement measuring device |
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