Track vertical dynamic acceleration measuring device

Abstract

The utility model discloses a rail vertical dynamic acceleration measuring device, which comprises an adjustable clamping mechanism with a clamping opening, a sleeper is clamped in the clamping opening, and two sides of the adjustable clamping mechanism are respectively and detachably connected with an adjustable mounting cover. A vertical displacement sensor and a vertical acceleration sensor are installed in the two adjustable installation covers respectively, and the height of the vertical displacement sensor and the height of the vertical acceleration sensor are both higher than the sleeper and lower than the rail top of the steel rail. According to the utility model, the irregularity degree of the track can be accurately monitored in real time, the monitoring difficulty is reduced, and the monitoring workload is reduced. The track irregularity monitoring device is suitable for the technical field of track irregularity monitoring in track traffic.

Description

Technical Field

[0001] The utility model belongs to the technical field of rail transportation, and in particular relates to a track vertical dynamic acceleration measuring device. Background Art

[0002] Currently, due to the long-term operation of the track, gaps will form between the lower part of the sleeper and the roadbed; or due to factors such as loosening of the connectors and sinking of the sleeper, gaps will appear between the sleeper and the rail; or the ballast density will decrease, causing the ballast to become loose. As a result, when a train passes, the track will experience large fluctuations. This condition is called track unevenness, which generally causes the train to be bumpy. When the track unevenness exceeds the limit, it is very likely to cause the train to derail, leading to major safety accidents. Currently, there is no better method to detect the degree of track unevenness, making it impossible to accurately determine the degree, location and other parameters of the track unevenness. The difficulty and workload of detection are relatively high. Utility Model Content

[0003] The utility model provides a track vertical dynamic acceleration measuring device, which is used for accurately and in real time monitoring the degree of track unevenness, thereby reducing the difficulty of monitoring and the workload of monitoring.

[0004] In order to achieve the above purpose, the technical solutions adopted by the present utility model are as follows:

[0005] A device for measuring vertical dynamic acceleration of a track comprises an adjustable clamping mechanism having a clamping opening, a rail sleeper being clamped in the clamping opening, adjustable mounting covers being detachably connected to both sides of the adjustable clamping mechanism, a vertical displacement sensor and a vertical acceleration sensor being respectively mounted in the two adjustable mounting covers, and the heights of the vertical displacement sensor and the vertical acceleration sensor being higher than the rail sleeper and lower than the rail top.

[0006] Furthermore, the adjustable clamping mechanism includes two relatively arranged clamping members, the two clamping members are connected by at least two double-screw screws arranged side by side, the clamping mouth is formed between the two clamping members, and the two adjustable mounting covers are respectively installed on the end faces of the two clamping members away from each other.

[0007] Furthermore, the clamping member includes a first connecting seat and a second connecting seat constructed at both ends of the clamping plate, and a plurality of threaded sleeves are constructed at intervals on the first connecting seat. Each of the double-screw screws is threadedly connected to two threaded sleeves aligned with each other on the two first connecting seats, and the second connecting seat is connected to the corresponding adjustable mounting cover.

[0008] Furthermore, the twin-helical screw includes a screw body, on which a forward thread portion and a reverse thread portion are spaced apart along the axial direction. The forward thread portion and the reverse thread portion are respectively threadedly connected to two aligned threaded sleeves on the two first connecting seats.

[0009] Furthermore, a connecting column is constructed on the side of the second connecting seat away from the sleeper, and a fastener is threadedly connected to the connecting column. One end of the adjustable mounting cover is clamped on the connecting column, and the fastener is pressed against the end face of the adjustable mounting cover.

[0010] Furthermore, the fastener includes a fastening nut fixed on the pressing seat, the pressing seat is movably connected to the connecting column, and the fastening nut is threadedly connected to the connecting column.

[0011] Furthermore, a plurality of threaded holes are opened at one end of the second connecting seat away from the first connecting seat, the gripping plate is fixed to the second connecting seat by a plurality of fixing bolts, and the gripping plate extends into the bottom of the sleeper, and each of the fixing bolts passes through the second connecting seat and is threadedly connected to the corresponding threaded hole.

[0012] Furthermore, the gripping plate includes a plate-shaped body, on which a connecting portion and an inclined insertion portion are constructed. The inclined insertion portion extends into the bottom of the sleeper, and the connecting portion is connected to each fixing bolt.

[0013] Furthermore, the adjustable mounting cover includes a cover body for accommodating a vertical displacement sensor or a vertical acceleration sensor, and a clip-on plate is fixedly connected to the cover body via a transition plate. A connecting notch is provided on the clip-on plate, and the clip-on plate is clipped to the side of the corresponding adjustable clamping mechanism.

[0014] Furthermore, an operating door is pivotally connected to one end of the cover body, a first connecting edge is constructed at the end of the operating door away from the pivot connection, and a second connecting edge is constructed at the corresponding side edge of the cover body. When the first connecting edge and the second connecting edge are aligned, the operating door is in a closed state; a strip hole extending vertically is opened at the end of the cover body away from the operating door, and a connecting rod is installed on the vertical displacement sensor or the vertical acceleration sensor, the connecting rod extends out of the strip hole, and a locking nut is threadedly connected to the connecting rod, and the locking nut is tightened on the corresponding end face of the cover body.

[0015] Due to the aforementioned structure, the present invention achieves a technological advancement over the prior art in that the adjustable clamping mechanism is clamped either at the non-end portion of the sleeper or at the end portion of the sleeper. When clamped at the non-end portion of the sleeper, the adjustable clamping mechanism is in a vertical position; when clamped at the end portion of the sleeper, the adjustable clamping mechanism is in a horizontal position. In both positions, the adjustable clamping mechanism avoids obstacles and maintains a secure position on the sleeper, and the two adjustable mounting covers are always in a vertical position. Furthermore, to ensure accurate monitoring and prevent excessive influence from other factors, the vertical displacement sensors and vertical acceleration sensors within the two adjustable mounting covers are positioned below the rails and above the sleepers. When a train passes, the vertical displacement sensors monitor the vertical displacement of the track, and the vertical acceleration sensors monitor the vertical acceleration, thereby analyzing the degree of track irregularity. Furthermore, the use of the adjustable mounting covers protects the vertical displacement sensors and vertical acceleration sensors within them, preventing them from being damaged by flying debris. In summary, the present invention can accurately and in real time monitor the degree of track unevenness, thereby reducing the difficulty of monitoring and the workload of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached figure:

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a structural front view of an embodiment of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the adjustable clamping mechanism according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the clamping member in the adjustable clamping mechanism according to an embodiment of the present utility model;

[0022] Figure 5 for Figure 4 A schematic diagram of the structure shown from another angle;

[0023] Figure 6 This is a schematic structural diagram of a double-screw screw in an adjustable clamping mechanism according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the connection between the gripping plate and the fixing bolts according to an embodiment of the present utility model;

[0025] Figure 8 This is a schematic structural diagram of an adjustable mounting cover according to an embodiment of the present utility model;

[0026] Figure 9 This is a schematic structural diagram of a fastener according to an embodiment of the present utility model.

[0027] Labeled parts: 100-clamping piece, 101-clamping plate, 102-first connecting seat, 103-threaded sleeve, 104-second connecting seat, 105-connecting column, 106-threaded hole, 200-double-screw, 201-screw body, 202-positive threaded portion, 203-reverse threaded portion, 204-connecting nut, 300-gripping plate, 301-plate body, 302-connecting portion, 303-tilt Oblique insertion part, 304-fixing bolt, 400-adjustable mounting cover, 401-cover body, 402-operating door, 403-second connecting edge, 404-first connecting edge, 405-strip hole, 406-connecting rod, 407-locking nut, 408-transition plate, 409-clamping plate, 410-connecting notch, 500-fastener, 501-fastening nut, 502-pressing seat, 600-clamping mouth. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0029] The utility model discloses a track vertical dynamic acceleration measuring device, such as Figure 1-9As shown, the adjustable clamping mechanism includes an adjustable clamping mechanism, a vertical displacement sensor, a vertical acceleration sensor, and two adjustable mounting covers 400. The adjustable clamping mechanism has a clamping opening 600 within which the sleeper is clamped. The two adjustable mounting covers 400 are detachably connected to either side of the adjustable clamping mechanism. The vertical displacement sensor and vertical acceleration sensor are mounted within the two adjustable mounting covers 400, respectively. The vertical displacement sensor and vertical acceleration sensor are both positioned above the sleeper and below the rail top. The operating principle and advantages of this utility model are as follows: the adjustable clamping mechanism is clamped to either the non-end portion of the sleeper or the end portion of the sleeper. When clamped to the non-end portion of the sleeper, the adjustable clamping mechanism is in a vertical position; when clamped to the end portion of the sleeper, the adjustable clamping mechanism is in a horizontal position. In both of these positions, the adjustable clamping mechanism avoids obstacles and maintains a secure position on the sleeper. Furthermore, the two adjustable mounting covers 400 are always in a vertical position. Moreover, in order to ensure the accuracy of monitoring and avoid excessive influence of other factors, the heights of the vertical displacement sensors and vertical acceleration sensors in the two adjustable mounting covers 400 are lower than the rails and higher than the sleepers. When the train passes, the vertical displacement sensor monitors the vertical displacement of the track, and the vertical acceleration sensor monitors the vertical acceleration, thereby analyzing the degree of track unevenness. Moreover, due to the use of the adjustable mounting cover 400, the vertical displacement sensor and vertical acceleration sensor therein are protected, and splashing gravel and the like are prevented from damaging the vertical displacement sensor and the vertical acceleration sensor. In summary, the utility model can accurately and in real time monitor the degree of track unevenness, thereby reducing the difficulty of monitoring and the workload of monitoring.

[0030] As a preferred embodiment of the present invention, Figure 3-6As shown, the adjustable clamping mechanism includes two clamping members 100 arranged opposite to each other, and the two clamping members 100 are connected by at least two double-screw rods 200 arranged side by side. The above-mentioned clamping opening 600 is formed between the two clamping members 100, and two adjustable mounting covers 400 are respectively mounted on the end faces of the two clamping members 100 that are away from each other. The specific structure of the clamping member 100 is as follows: the clamping member 100 includes a clamping plate 101, a first connecting seat 102 and a second connecting seat 104. The first connecting seat 102 and the second connecting seat 104 are respectively constructed at both ends of the clamping plate 101. A plurality of threaded sleeves 103 are spaced apart on the first connecting seat 102. Each double-screw rod 200 is threadedly connected to two threaded sleeves 103 aligned on the two first connecting seats 102, and the second connecting seat 104 is connected to the corresponding adjustable mounting cover 400. The specific structure of the twin-screw 200 of this embodiment is as follows: the twin-screw 200 includes a screw body 201, on which a forward threaded portion 202 and a reverse threaded portion 203 are spaced apart along the axial direction. The forward threaded portion 202 and the reverse threaded portion 203 are respectively threadedly connected to two aligned threaded sleeves 103 on the two first connecting seats 102. Furthermore, a connecting nut 204 is respectively threadedly connected to the forward threaded portion 202 and the reverse threaded portion 203, and each connecting nut 204 is locked onto the end face of the corresponding first connecting seat 102. The working principle and advantages of this embodiment are as follows: when it is necessary to clamp the two clamping members 100 on two opposite sides of the sleeper, the twin-screw 200 is rotated forward, so that the two first connecting seats 102 approach each other, so that the clamping opening 600 gradually becomes smaller until the two clamping plates 101 clamp the sleeper, and then each connecting nut 204 is tightened. In order to further clamp the sleeper, this embodiment adopts the following measures: a rubber layer is fixed on the end surface of one end of the two clamping plates 101 close to each other. When the two clamping plates 101 clamp the sleeper, the rubber layer is compressed and deformed and tightly fits on the side wall of the sleeper, thereby preventing the clamping plates 101 from separating from the sleeper.

[0031] As a preferred embodiment of the present invention, Figure 3 、 4As shown in Figures 9 and 9, a connecting post 105 is constructed on the side of the second connecting seat 104 away from the sleeper. A fastener 500 is threadedly connected to the connecting post 105. One end of the adjustable mounting cover 400 is clamped on the connecting post 105, and the fastener 500 is pressed against the end face of the adjustable mounting cover 400. The specific structure of the fastener 500 is as follows: the fastener 500 includes a coaxially arranged pressing seat 502 and a fastening nut 501. The fastening nut 501 and the pressing seat 502 are integrally formed. The pressing seat 502 is movably connected to the connecting post 105, and the fastening nut 501 is threadedly connected to the connecting post 105. When the end of the adjustable mounting cover 400 is clamped on the connecting post 105, the fastening nut 501 is tightened, so that the end of the adjustable mounting cover 400 is clamped between the pressing seat 502 and the second connecting seat 104.

[0032] As a preferred embodiment of the present invention, when the adjustable clamping mechanism is in a vertical state, in order to further strengthen the clamping strength of the adjustable clamping mechanism on the sleeper, the measures taken are as follows: Figure 3 、 5 As shown in Figures 7 and 8, a plurality of threaded holes 106 are formed on the end surface of the second connecting seat 104 away from the first connecting seat 102. The gripping plate 300 is fixed to the second connecting seat 104 via a plurality of fixing bolts 304. The gripping plate 300 extends into the bottom of the sleeper, and each fixing bolt 304 passes through the second connecting seat 104 and is threadedly connected to the corresponding threaded hole 106. The specific structure of the gripping plate 300 is as follows: the gripping plate 300 includes a plate-shaped body 301, on which are constructed a connecting portion 302 and an inclined insertion portion 303. The inclined insertion portion 303 extends into the bottom of the sleeper, and the connecting portion 302 is connected to each fixing bolt 304. Moreover, since the lower end surface of the inclined insertion portion 303 is inclined, it is convenient for the inclined insertion portion 303 to extend into the bottom of the sleeper. Moreover, the inclined insertion portion 303 cooperates with the second connecting seat 104, so that the adjustable clamping mechanism firmly holds the sleeper.

[0033] As a preferred embodiment of the present invention, Figure 1 、 2As shown in Figures 8 and 9, the adjustable mounting cover 400 includes a cover body 401, a transition plate 408, and a clip plate 409. The cover body 401 is used to accommodate a vertical displacement sensor or a vertical acceleration sensor, protecting the vertical displacement sensor and the vertical acceleration sensor from damage by flying debris. The clip plate 409 of this embodiment is connected and fixed to the cover body 401 via the transition plate 408. A connecting notch 410 is formed on the clip plate 409. The clip plate 409 is clipped onto the corresponding connecting column 105 of the second connecting seat 104 through the connecting notch 410. Thereafter, the fastener 500 is tightened to secure the clip plate 409 to the second connecting seat 104. In this embodiment, an operating door 402 is pivotally connected to one end of the cover body 401, a first connecting edge 404 is constructed at the end of the operating door 402 away from the pivot, and a second connecting edge 403 is constructed on the corresponding side edge of the cover body 401. When the first connecting edge 404 is aligned with the second connecting edge 403, the operating door 402 is in a closed state. In this embodiment, operations such as maintenance and replacement of the vertical displacement sensor or the vertical acceleration sensor can be carried out by opening the operating door 402. A strip hole 405 extending vertically is provided at the end of the cover body 401 away from the operating door 402. A connecting rod 406 is installed on the vertical displacement sensor or the vertical acceleration sensor. The connecting rod 406 extends out of the strip hole 405. A locking nut 407 is threadedly connected to the connecting rod 406, and the locking nut 407 is tightened on the corresponding end face of the cover body 401. In this embodiment, the connection between the connecting rod 406 and the housing 401 can be released by loosening the locking nut 407. The height of the vertical displacement sensor or vertical acceleration sensor can then be adjusted along the strip-shaped hole 405. After the adjustment is complete, the locking nut 407 can be tightened. In this embodiment, a Beidou positioning template can be installed in the housing 401 for positioning the track monitoring position.

[0034] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A track vertical dynamic acceleration measuring device, characterized in that: The invention comprises an adjustable clamping mechanism with a clamping opening, in which the sleeper is clamped, and adjustable mounting covers are detachably connected to both sides of the adjustable clamping mechanism, and a vertical displacement sensor and a vertical acceleration sensor are respectively mounted in the two adjustable mounting covers, and the heights of the vertical displacement sensor and the vertical acceleration sensor are both higher than the sleeper and lower than the rail top.

2. A track vertical dynamic acceleration measuring device according to claim 1, characterized in that: The adjustable clamping mechanism includes two clamping parts arranged opposite to each other, and the two clamping parts are connected by at least two double-screw screws arranged side by side. The clamping port is formed between the two clamping parts, and the two adjustable mounting covers are respectively installed on the end faces of the two clamping parts away from each other.

3. A track vertical dynamic acceleration measuring device according to claim 2, characterized in that: The clamping member includes a first connecting seat and a second connecting seat constructed at both ends of the clamping plate, and a plurality of threaded sleeves are constructed at intervals on the first connecting seat. Each of the double-screw screws is threadedly connected to two threaded sleeves aligned with each other on the two first connecting seats, and the second connecting seat is connected to the corresponding adjustable mounting cover.

4. A track vertical dynamic acceleration measuring device according to claim 3, characterized in that: The twin-screw includes a screw body, on which a forward thread portion and a reverse thread portion are spaced apart along the axial direction. The forward thread portion and the reverse thread portion are respectively threadedly connected to two aligned thread sleeves on two first connecting seats.

5. The device for measuring vertical dynamic acceleration of a track according to claim 3, characterized in that: A connecting column is constructed on the side of the second connecting seat away from the sleeper, and a fastener is threadedly connected to the connecting column. One end of the adjustable mounting cover is clamped on the connecting column, and the fastener is pressed against the end surface of the adjustable mounting cover.

6. A track vertical dynamic acceleration measuring device according to claim 5, characterized in that: The fastener comprises a fastening nut fixed on a pressing seat, the pressing seat is movably connected to a connecting column, and the fastening nut is threadedly connected to the connecting column.

7. The device for measuring vertical dynamic acceleration of a track according to claim 3, characterized in that: A plurality of threaded holes are opened at one end of the second connecting seat away from the first connecting seat. The gripping plate is fixed to the second connecting seat by a plurality of fixing bolts, and the gripping plate extends into the bottom of the sleeper. Each fixing bolt passes through the second connecting seat and is threadedly connected to the corresponding threaded hole.

8. A track vertical dynamic acceleration measuring device according to claim 7, characterized in that: The gripping plate comprises a plate-shaped body, on which a connecting portion and an inclined inserting portion are constructed. The inclined inserting portion extends into the bottom of the sleeper, and the connecting portion is connected with each fixing bolt.

9. The device for measuring vertical dynamic acceleration of a track according to claim 1, characterized in that: The adjustable mounting cover includes a cover body for accommodating a vertical displacement sensor or a vertical acceleration sensor. The clamping plate is connected and fixed to the cover body via a transition plate. A connecting notch is provided on the clamping plate, and the clamping plate is clamped to the side of the corresponding adjustable clamping mechanism.

10. A track vertical dynamic acceleration measuring device according to claim 9, characterized in that: An operating door is pivotally connected to one end of the cover body, a first connecting edge is constructed at the end of the operating door away from the pivot connection, and a second connecting edge is constructed on the corresponding side edge of the cover body. When the first connecting edge and the second connecting edge are aligned, the operating door is in a closed state; a strip hole extending vertically is opened at the end of the cover body away from the operating door, a connecting rod is installed on the vertical displacement sensor or the vertical acceleration sensor, the connecting rod extends out of the strip hole, a locking nut is threadedly connected to the connecting rod, and the locking nut is tightened on the corresponding end face of the cover body.

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