Laser displacement measuring device

Abstract

The embodiment of the utility model discloses a laser displacement measuring device. The laser displacement measuring device comprises a support, an angle adjusting mechanism, a laser sensor and a target object. The target object is arranged on a to-be-measured steel rail, the laser sensor is fixed on the support through the angle adjusting mechanism, and the support is arranged on a stand column on the side of the to-be-measured steel rail. The angle adjusting mechanism comprises a first angle adjusting assembly and a second angle adjusting assembly, the second angle adjusting assembly comprises a first fixing piece connected with the support, and the first angle adjusting assembly is connected with the first fixing piece in a relatively rotating mode, so that the angle between the laser sensor and the support can be adjusted. When the laser sensor is installed, the position of the laser sensor is quantitatively adjusted through the angle adjusting mechanism, the installation difficulty of the laser sensor is reduced, the adjusting steps of the measuring device are simplified, and the accuracy of steel rail displacement measurement is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of track safety monitoring, in particular to a laser displacement measuring device. Background Art

[0002] With the development of my country's railway transportation industry, the number of seamless lines has increased, and some new problems have emerged in the maintenance of seamless lines. After the seamless line is laid, the rails are restricted from free expansion and contraction due to the resistance of fasteners and ballast bed, resulting in huge temperature forces inside them. If the temperature compressive stress inside the rails is too large, it may cause track expansion; if the temperature tensile stress inside the rails is too large, exceeding the allowable tensile stress of the rails, the rails will break. Therefore, temperature forces have become a potential threat to whether seamless lines can meet the strength and stability requirements. In order to ensure driving safety, it is necessary for the railway engineering department to keep abreast of the changes in the stress inside the rails of the line, so as to provide a scientific basis for the maintenance of seamless lines.

[0003] At present, the domestic railway maintenance system mainly measures rail displacement manually using collimators or infrared devices, and calculates the actual locked rail temperature of the rail based on the rail displacement. However, the installation and position adjustment of the measuring device are relatively complicated, and the measurement results are distorted due to the displacement observation pile offset, displacement observation label shedding, manual measurement errors, etc. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a laser displacement measuring device, which simplifies the installation and adjustment steps of the measuring device and improves the accuracy of rail displacement measurement.

[0005] The utility model provides a laser displacement measuring device for monitoring rail displacement, the laser displacement measuring device comprising: a bracket, arranged on a column on the side of the rail; an angle adjustment mechanism, comprising a first angle adjustment component and a second angle adjustment component, the second angle adjustment component comprising a first fixing piece connected to the bracket, the first angle adjustment component being rotatably connected to the first fixing piece; a laser sensor, connected to the first angle adjustment component; and a target object, fixed on the waist of the rail.

[0006] Furthermore, the first angle adjustment component includes a first rotating member, a second fixed member and a first connecting member, the first rotating member includes a top plate and two first rotating plates respectively arranged at opposite ends of the top plate, the top plate is connected to the laser sensor, the first rotating plate extends from the top plate in a direction away from the laser sensor, the first rotating plate has a first rotating hole, the second fixed member includes a bottom plate and two second rotating plates respectively arranged at opposite ends of the bottom plate, the second rotating plate is arranged parallel to the first rotating plate, the second rotating plate has a second rotating hole corresponding to the first rotating hole, and the first connecting member passes through the first rotating hole and the second rotating hole; the second angle adjustment component also includes a second rotating member, a third rotating hole is opened on the top of the first fixed member, the second rotating member passes through the third rotating hole, and the second rotating member is also connected to the bottom plate.

[0007] Furthermore, a dial is also arranged on the top of the first fixing member, and scale lines are arranged on the outer wall of the dial. The dial is a cylinder that passes through the third rotating hole, and the inner diameter of the dial is greater than or equal to the aperture of the third rotating hole. The bottom plate includes a protrusion that extends into the dial, and the second rotating member passes through the protrusion, the dial and the third rotating hole.

[0008] Furthermore, the laser displacement measuring device also includes a first limit member, the first rotating plate also has a first arc-shaped hole, the arc center of the first arc-shaped hole coincides with the center of the circle of the first rotating hole, the first limit member passes through the first arc-shaped hole and is connected to the second rotating plate; and / or the laser displacement measuring device also includes a second limit member, the top of the first fixing member also has a second arc-shaped hole, the arc center of the second arc-shaped hole coincides with the center of the circle of the third rotating hole, the second limit member passes through the second arc-shaped hole and is connected to the bottom plate.

[0009] Furthermore, the first rotating member of the first angle adjustment assembly has a rotational freedom along a vertical plane relative to the second fixed member, and the first angle adjustment assembly has a rotational freedom along a horizontal plane relative to the first fixed member of the second angle adjustment assembly.

[0010] Furthermore, the column has a wing plate, and the bracket includes a first fixing plate and a second fixing plate, the first fixing plate and the second fixing plate are arranged on opposite sides of the wing plate in a thickness direction, and the first fixing plate and the second fixing plate are connected to clamp the wing plate.

[0011] Furthermore, the first fixed plate includes a supporting section corresponding to the wing plate and a connecting section connected to the first fixing member, and the connecting section is arranged at the end of the first fixed plate along the length direction; the second fixed plate is arranged corresponding to the end of the supporting section close to the connecting section, and the second fixed plate has a tooth portion abutting against the wing plate, and the tooth portion and the supporting section clamp the wing plate.

[0012] Furthermore, the laser displacement measuring device includes two target objects and two laser sensors, the bracket includes two second fixed plates, the two second fixed plates are respectively arranged in one-to-one correspondence with the two ends of the first fixed plate, a connecting section is respectively arranged at both ends of the first fixed plate along the length direction, the laser sensors are arranged in one-to-one correspondence with the connecting sections, and the laser sensors are arranged in one-to-one correspondence with the target objects.

[0013] Furthermore, the target is a wedge, one side wall of the target is in contact with the rail, and the other side wall of the target is arranged toward the laser sensor.

[0014] Furthermore, the laser displacement measuring device also includes a data processing device and a solar panel. The data processing device is electrically connected to the laser sensor, and the solar panel is electrically connected to the data processing device. The data processing device and the solar panel are arranged on the column.

[0015] The embodiment of the utility model discloses a laser displacement measuring device, which includes a bracket, an angle adjustment mechanism, a laser sensor and a target. The target is set on the rail to be measured, and the laser sensor is fixed to the bracket through the angle adjustment mechanism, and the bracket is set on a column on the side of the rail to be measured. The angle adjustment mechanism includes a first angle adjustment component and a second angle adjustment component, and the second angle adjustment component includes a first fixing part connected to the bracket, and the first angle adjustment component is connected to the first fixing part for relative rotation. When installing the laser sensor, the direction of the laser sensor can be quantitatively adjusted through the angle adjustment mechanism, which simplifies the installation and adjustment of the measuring device and improves the accuracy of the rail displacement measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 It is a partial three-dimensional structural schematic diagram of a laser displacement measuring device provided by an embodiment of the utility model at a first viewing angle;

[0018] Figure 2 It is a partial three-dimensional structural schematic diagram of the laser displacement measuring device provided by an embodiment of the utility model at a second viewing angle;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the laser displacement measuring device provided by the embodiment of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the angle adjustment mechanism and the laser sensor provided in the embodiment of the utility model;

[0021] Figure 5 It is a partial top view of the bracket provided by the embodiment of the utility model;

[0022] Figure 6 It is a detection schematic diagram of the laser displacement measurement device provided by an embodiment of the utility model;

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the angle adjustment mechanism and the laser sensor provided by the embodiment of the utility model without the first connecting member, the first limiting member and the second limiting member;

[0024] Figure 8 It is a cross-sectional view of the laser sensor and the angle adjustment mechanism provided in the embodiment of the utility model.

[0025] Description of reference numerals:

[0026] 1-rail; 11-rail waist;

[0027] 2-column; 21-web; 22-wing plate;

[0028] 3-bracket; 31-first fixing plate; 311-supporting section; 312-connecting section; 32-second fixing plate; 321-toothed section; 322-auxiliary section;

[0029] 4-angle adjustment mechanism; 41-first angle adjustment component; 411-first rotating member; 4111-top plate; 4112-first rotating plate; 412-second fixing member; 4121-bottom plate; 41211-protrusion; 4122-second rotating plate; 413-first connecting member; 42-second angle adjustment component; 421-first fixing member; 4211-third rotating hole; 4212-scaled plate; 422-second rotating member; 43-first limiting member; 431-first rotating hole; 432-first arc hole; 433-first fixing hole; 44-second limiting member; 441-second arc hole; 442-second rotating hole; 443-second fixing hole;

[0030] 5- Laser sensor;

[0031] 6- Target;

[0032] 7-Level;

[0033] 8- Data processing device;

[0034] 9-Solar panels. DETAILED DESCRIPTION

[0035] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0036] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0037] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, the elements described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. The device may be oriented in other ways, and the spatially relative descriptors used herein should be interpreted accordingly.

[0039] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0040] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0041] like Figure 1-Figure 6As shown, an embodiment of the utility model provides a laser displacement measuring device, which is used to monitor the displacement of the rail 1. The laser displacement measuring device includes a bracket 3, an angle adjustment mechanism 4, a laser sensor 5 and a target 6. Among them, the target 6 is fixed on the rail waist 11 of the rail 1 to be measured, and the bracket 3 is arranged on the column 2 on the side of the rail 1. The angle adjustment mechanism 4 is arranged on the bracket 3, and the laser sensor 5 is arranged on the angle adjustment mechanism 4 and points to the target 6. When in use, the laser sensor 5 emits a laser to the target 6 and receives the laser signal reflected by the target 6. The movement amount of the target 6 can be obtained based on the laser signals received multiple times. The displacement of the rail 1 can be calculated using the projection relationship between the surface of the target 6 receiving the laser and the surface where the target 6 and the rail 1 are attached, combined with the movement amount of the target 6, thereby realizing the monitoring of the lateral displacement, longitudinal displacement and settlement of the track. Furthermore, the actual locking rail temperature of the rail 1 can be calculated according to the displacement of the rail 1 , so as to understand the internal stress of the rail 1 at this time and provide a basis and guidance for the maintenance of the rail 1 .

[0042] During the installation of the laser displacement measurement device, the relative positions of the laser sensor 5 and the target object 6 need to be adjusted. Generally, the user first fixes the target object 6 on the rail waist 11, and then adjusts the position of the laser sensor 5 to ensure that the laser sensor 5 can send and receive laser signals to the target object 6. In this embodiment, the angle adjustment mechanism 4 includes a first angle adjustment component 41 and a second angle adjustment component 42. The first angle adjustment component 41 allows the laser sensor 5 to rotate along a first direction relative to the bracket 3, and the second angle adjustment component 42 allows the laser sensor 5 to rotate along a second direction relative to the bracket 3, thereby improving the convenience of adjusting the laser sensor 5 and improving the adjustment efficiency of the user. Therefore, the user can adjust the position of the laser sensor 5 connected to the angle adjustment mechanism 4 in the first direction and the second direction by adjusting the angle adjustment mechanism 4. After the laser sensor 5 is adjusted to a predetermined position, the angle adjustment mechanism 4 can be fixed to fix the laser sensor 5. Compared with directly moving the laser sensor 5, this adjustment method quantifies the position of the laser sensor 5 and improves the adjustment efficiency. In this embodiment, the rotation axis in the first direction and the rotation axis in the second direction are perpendicular to each other.

[0043] The first angle adjustment assembly 41 includes a first rotating member 411, a second fixed member 412 and a first connecting member 413. The first rotating member 411 has a rotational freedom along a first direction relative to the second fixed member 412. The laser sensor 5 is connected to the first rotating member 411 so as to be able to rotate along the first direction. In this embodiment, the first direction is a rotation direction on a vertical plane, that is, the rotation axis of the first direction is arranged along a horizontal direction, and the first rotating member 411 and the second fixed member 412 can rotate relative to each other along a vertical plane. The user adjusts the pitch angle of the laser sensor 5 by changing the angle relationship between the first rotating member 411 and the second fixed member 412.

[0044] The first rotating member 411 includes a top plate 4111 and two first rotating plates 4112 respectively disposed at opposite ends of the top plate 4111. The top plate 4111 is connected to the laser sensor 5, and the first rotating plates 4112 extend from the top plate 4111 in a direction away from the laser sensor 5. Figure 4 and Figure 7 As shown, the top plate 4111 and the two first rotating plates 4112 form an "n"-shaped structure, the top plate 4111 forms the top of "n", and the two first rotating plates 4112 respectively form two side walls of "n". The laser sensor 5 is arranged on the side of the top of the "n"-shaped structure away from the side wall. At least one of the first rotating plates 4112 is provided with a first rotating hole 431, and the first connecting member 413 passes through the first rotating hole 431 to be rotatably connected with the first rotating plate 4112.

[0045] The second fixing member 412 includes a bottom plate 4121 and two second rotating plates 4122 respectively disposed at opposite ends of the bottom plate 4121. The second rotating plates 4122 extend from the bottom plate 4121 toward the direction close to the laser sensor 5. Figure 4 and Figure 7As shown, the bottom plate 4121 and the two second rotating plates 4122 form a "U"-shaped structure, the bottom plate 4121 forms the bottom of the "U", and the two second rotating plates 4122 respectively form the two side walls of the "U". The second rotating plate 4122 is arranged in parallel with the first rotating plate 4112, and the width of the bottom plate 4121 is smaller than the width of the top plate 4111, that is, the distance between the two second rotating plates 4122 is smaller than the distance between the two first rotating plates 4112. The "n"-shaped first rotating member 411 and the "U"-shaped second fixed member 412 opening are arranged opposite to each other, and the first rotating member 411 is partially sleeved on the outside of the second fixed member 412. The second rotating plate 4122 has a second rotating hole 442 corresponding to the first rotating hole 431, and the first connecting member 413 passes through the first rotating hole 431 and the second rotating hole 442. In this embodiment, the first rotating hole 431 and the second rotating hole 442 are both light holes, and the first connecting member 413 is a bolt with a nut at the end. When the position adjustment of the laser sensor 5 in the first direction is completed, the nut can be tightened to lock and fix the first rotating member 411 and the second fixing member 412.

[0046] like Figure 7 As shown, the first rotating plate 4112 also has a first arc hole 432, and the arc center of the first arc hole 432 coincides with the circle center of the first rotating hole 431. The second rotating plate 4122 has at least one first fixing hole 433. When the first rotating hole 431 and the second rotating hole 442 are coaxially arranged, the first fixing hole 433 and the first arc hole 432 are at least partially connected. The laser displacement measuring device also includes a first stopper 43, which is a bolt with a nut at the end. Figure 4 As shown, after the position adjustment of the laser sensor 5 in the first direction is completed, the first stopper 43 is used to pass through the first arc hole 432 and the first fixing hole 433 and locked, so that the first angle adjustment component 41 and the second angle adjustment component 42 are relatively fixed. In this embodiment, two first fixing holes 433 are set on the second rotating plate 4122. During the debugging process, the user selects one of the first fixing holes 433 according to the angle of the laser sensor 5 in the first direction, passes the first stopper 43 through the first fixing hole 433, and then moves the first rotating member 411. When the laser sensor 5 is in a predetermined position, the nut of the first stopper 43 is tightened, so that the first rotating member 411 and the second fixing member 412 are relatively fixed, and then the nut at the end of the first connecting member 413 is tightened to further fix the first rotating member 411 and the second fixing member 412. That is, the two first fixing holes 433 correspond to different angle orientations of the laser sensor 5 in the first direction, respectively. The user selects the first fixing hole 433 as needed, and then adjusts the specific angle range of the laser sensor 5 and tightens the nut of the first stopper 43.

[0047] The second angle adjustment component 42 includes a first fixed member 421 and a second rotating member 422. The top of the first fixed member 421 is provided with a third rotating hole 4211. The second rotating member 422 passes through the third rotating hole 4211 so as to be able to rotate in the second direction. The second rotating member 422 is also connected to the bottom plate 4121, so that the first angle adjustment component 41 is rotatably connected to the second rotating member 422, and then the second angle adjustment component 42 drives the laser sensor 5 to rotate along the second direction. In this embodiment, the second direction is the rotation direction on the horizontal plane, that is, the rotation axis of the second rotating member 422 is arranged in the vertical direction, and the second rotating member 422 can rotate along the horizontal plane. The user adjusts the horizontal angle of the laser sensor 5 by changing the angle relationship between the second rotating member 422 and the first fixed member 421. In order to facilitate installation, a level 7 is arranged on the first fixed member 421, and during the installation process, it can be ensured that the bracket 3 and the first fixed member 421 are arranged horizontally, thereby ensuring that the second rotating member 422 rotates in the horizontal direction. In this embodiment, the level meter 7 is a level indicating bubble meter, which is fixed at the edge of the top of the first fixing member 421 .

[0048] Furthermore, the top of the first fixing member 421 has a protruding dial 4212. Figure 8 As shown, the scale plate 4212 is a cylinder that is connected to the third rotating hole 4211, and the inner diameter of the scale plate 4212 is greater than or equal to the aperture of the third rotating hole 4211. That is, there is a groove in the middle of the scale plate 4212, and the groove is connected to the third rotating hole 4211. The bottom plate 4121 also includes a protrusion 41211 extending into the scale plate 4212, and the protrusion 41211 has a circular hole in the middle, and the second rotating member 422 passes through the protrusion 41211, the scale plate 4212 and the third rotating hole 4211. In this embodiment, there is a gasket between the scale plate 4212 and the protrusion 41211. Graduation lines are set on the side wall of the scale plate 4212, and the user can locate the position of the second rotating member 422 through the graduation lines during the debugging process. In this embodiment, the second rotating member 422 has a hexagonal top at one end close to the protruding portion 41211, and the protruding portion 41211 has a hexagonal groove, so that the two are relatively fixed in the circumferential direction. In addition, the second rotating member 422 has a nut at one end close to the third rotating hole 4211. After the position adjustment of the laser sensor 5 in the second direction is completed, the nut can be tightened to fix the second rotating member 422 and the first fixing member 421.

[0049] like Figure 7As shown, at least one second arc hole 441 is further provided on the top of the first fixing member 421, and the arc center of the second arc hole 441 coincides with the circle center of the third rotating hole 4211. A second fixing hole 443 is provided on the bottom plate 4121, and the laser displacement measuring device further includes a second stopper 44, which passes through the second arc hole 441 and is connected to the bottom plate 4121. The end of the second stopper 44 has a nut. In this embodiment, three second arc holes 441 are provided on the top of the first fixing member 421. During the debugging process, the user selects one of the second arc holes 441 according to the required position of the laser sensor 5, passes the second limit member 44 through the second arc hole 441, and then moves the first angle adjustment component 41 and the laser sensor 5 connected thereto. When the laser sensor 5 is in a predetermined position, the nut of the second limit member 44 is locked so that the first angle adjustment component 41 and the second angle adjustment component 42 are relatively fixed in the second direction, and then the nut at the end of the second rotating member 422 is tightened to further fix the first fixing member 421 and the second rotating member 422. That is, the three second arc holes 441 correspond to different angular orientations of the laser sensor 5, and the user selects the second arc hole 441 according to needs. Figure 4 As shown, when the laser sensor 5 needs to point to the direction on the left side of the figure, the user chooses to pass the second limiter 44 through the second arc hole 441 near the right side, and then adjusts the specific angle range of the laser sensor 5 and tightens the nut of the second limiter 44. Conversely, when the laser sensor 5 needs to point to the direction on the right side of the figure, the user chooses to pass the second limiter 44 through the second arc hole 441 near the left side, and then adjusts the specific angle range of the laser sensor 5 and tightens the nut of the second limiter 44. When the laser sensor 5 needs to point to a direction substantially perpendicular to the paper surface, the user chooses to pass the second limiter 44 through the second arc hole 441 located in the middle, and then adjusts the specific angle range of the laser sensor 5 and tightens the nut of the second limiter 44.

[0050] The column 2 can be a contact network support or a pre-buried concrete self-supporting pole beside the track. The cross section of the column 2 can be trapezoidal, "H"-shaped, circular, etc. The connection structure between the bracket 3 and the column 2 is selected according to the specific structure of the column 2. Here, the column 2 is an "H"-shaped contact network support for example. Figure 3 As shown, the column 2 includes a web 21 and two wing plates 22. The two wing plates 22 are arranged in parallel, the web 21 is arranged between the two wing plates 22, and the web 21 is arranged perpendicular to the two wing plates 22. One of the wing plates 22 of the bracket 3 is arranged close to the rail 1, and the bracket 3 is arranged on the wing plate 22 close to the rail 1. Optionally, the width direction of the wing plate 22 is parallel to the extension direction of the rail 1. Figure 2 and Figure 5As shown, the bracket 3 includes a first fixing plate 31 and a second fixing plate 32, which are arranged on opposite sides of the wing plate 22 in the thickness direction, and the first fixing plate 31 and the second fixing plate 32 are connected to clamp the wing plate 22. In this embodiment, the length of the first fixing plate 31 is greater than the dimension of the wing plate 22 in the length direction of the first fixing plate 31, the length of the second fixing plate 32 is shorter than the length of the first fixing plate 31, the second fixing plate 32 is arranged at the edge of the wing plate 22, and the first fixing plate 31 and the second fixing plate 32 are connected by studs.

[0051] Further, the first fixing plate 31 includes a support section 311 and a connecting section 312, the support section 311 is arranged corresponding to the wing plate 22, and the second fixing plate 32 is arranged on both sides of the wing plate 22 relative to the support section 311 and cooperates with the support section 311 to clamp the wing plate 22. In this embodiment, the middle part of the support section 311 is arranged parallel to the wing plate 22, and the top and bottom of the support section 311 have a support structure bent toward the wing plate 22, and the support structure abuts against the wing plate 22. The connecting section 312 is arranged at the end of the first fixing plate 31 along the length direction, the connecting section 312 protrudes from the side of the wing plate 22, and the first fixing member 421 is connected to the support section 311. The middle part of the second fixing plate 32 is also parallel to the wing plate 22, the top and bottom of the second fixing plate 32 are bent in the direction close to the wing plate 22, and the second fixing plate 32 has sharp teeth at the position abutting against the wing plate 22, and the bending structure and the sharp teeth constitute the tooth portion 321, which can improve the connection strength between the second fixing plate 32 and the wing plate 22. like Figure 2 As shown, the end of the second fixing plate 32 protruding from the outside of the wing plate 22 also has an auxiliary portion 322 bent toward the first fixing plate 31, the auxiliary portion 322 is arranged perpendicular to the plane of the wing plate 22 close to the rail 1, and the auxiliary portion 322 points to the boundary between the support section 311 and the connecting section 312. When the first fixing member 421 is connected to the connecting section 312, the auxiliary portion 322 fits the side wall of the first fixing member 421 to assist the first fixing member 421 in fixing to the connecting section 312.

[0052] In this embodiment, the laser displacement measuring device further includes a data processing device 8 and a solar panel 9. The data processing device 8 is electrically connected to the laser sensor 5. The solar panel 9 is electrically connected to the data processing device 8 and the laser sensor 5 respectively. The data processing device 8 and the solar panel 9 are arranged on the column 2. Figure 3 As shown, the data processing device 8 and the laser sensor 5 are arranged on two opposite wing plates 22. After the laser sensor 5 detects the laser signal, it transmits the signal to the data processing device 8, and the data processing device 8 processes the received signal. The solar panel 9 supplies power to the data processing device 8 and the laser sensor 5, and the solar panel 9 is arranged on the sunny side of the column 2.

[0053] Furthermore, the laser displacement measuring device can be connected to the monitoring center server, and the monitoring center server is connected to the user terminal. After receiving the laser signal, the laser sensor 5 sends the data to the data processing device 8, and the data processing device 8 sends the data to the monitoring center server. The monitoring center server analyzes and processes the data to obtain the displacement value of the rail 1, the displacement change trend, and the locked rail temperature and other values ​​obtained based on the displacement. The monitoring center server is connected to the user terminal, and the user logs in to the monitoring center server through the user terminal to query the relevant data of the rail 1. In addition, the signal detected by the laser sensor 5 can be uploaded to the monitoring center server in real time, and the monitoring center server can realize real-time displacement change analysis. When the value is about to reach or reaches the alarm value, the monitoring center server can give early warning and real-time alarm. Compared with the existing technology, it can timely respond to the displacement change of the rail 1, improve the warning efficiency, and greatly reduce the driving safety risk.

[0054] Figure 6 Schematic diagram of the detection of the laser displacement measurement device provided by the embodiment of the utility model. Figure 6 As shown, the target 6 is a wedge, one side wall of the target 6 is in contact with the rail 1, and the other side wall of the target 6 is arranged toward the laser sensor 5, and the side wall facing the laser sensor 5 is a reflective surface. The column 2 is arranged on the side of the rail 1, and the laser sensor 5 is fixed on the first surface of the column 2 facing the rail 1. The laser of the laser sensor 5 points to the reflective surface, and the reflective surface receives and reflects the laser, so that the displacement of the rail 1 can be calculated according to the change in the position and distance of the laser reflected by the reflective surface.

[0055] One laser sensor 5 detects the displacement of one rail 1. For a single-track railway with two rails 1, two laser sensors 5 need to be set to detect the two rails 1 respectively. Figure 3 As shown, the laser displacement measuring device includes two laser sensors 5, and the two laser sensors 5 are respectively arranged on both sides of the plane of the wing plate 22 close to the rail 1. The bracket 3 includes a first fixing plate 31 and two second fixing plates 32. A connecting section 312 is arranged at both ends of the first fixing plate 31 along the length direction, and the laser sensor 5 is arranged in a one-to-one correspondence with the connecting section 312. The two second fixing plates 32 are respectively arranged in a one-to-one correspondence with the two ends of the first fixing plate 31 and are fixed with the first fixing part 31 and the wing plate 22. The laser displacement measuring device also includes two targets 6 (not shown in the figure), and the two rails 1 to be measured are respectively provided with the target 6, and the target 6 and the laser sensor 5 are arranged in a one-to-one correspondence.

[0056] When the railway is a double-track railway with four rails 1, two columns 2 are arranged beside the rails 1, and each column 2 has Figure 3The same laser displacement measuring device as the column 2 shown. The two sets of laser displacement measuring devices are connected to the same monitoring center server, and the user can query the displacement value, displacement change trend and locking rail temperature and other values ​​of any rail 1 through the user terminal connected to the monitoring center server.

[0057] The embodiment of the utility model discloses a laser displacement measuring device, which includes a bracket, an angle adjustment mechanism, a laser sensor and a target. The target is set on the rail to be measured, and the laser sensor is fixed to the bracket through the angle adjustment mechanism, and the bracket is set on a column on the side of the rail to be measured. The angle adjustment mechanism includes a first angle adjustment component and a second angle adjustment component, and the second angle adjustment component includes a first fixing part connected to the bracket, and the first angle adjustment component is connected to the first fixing part for relative rotation. When installing the laser sensor, the direction of the laser sensor can be quantitatively adjusted by the angle adjustment mechanism, which simplifies the installation and adjustment steps of the measuring device and improves the accuracy of rail displacement measurement.

[0058] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A laser displacement measuring device for monitoring the displacement of a rail (1), characterized in that: The laser displacement measuring device comprises: A bracket (3) is arranged on a column (2) on the side of the rail (1); The angle adjustment mechanism (4) comprises a first angle adjustment component (41) and a second angle adjustment component (42), wherein the second angle adjustment component (42) comprises a first fixing member (421) connected to the bracket (3), and the first angle adjustment component (41) is connected to the first fixing member (421) in a relatively rotatable manner; a laser sensor (5), connected to the first angle adjustment component (41); and The target object (6) is fixed on the rail waist (11) of the steel rail (1).

2. The laser displacement measuring device according to claim 1, characterized in that: The first angle adjustment component (41) comprises a first rotating member (411), a second fixing member (412) and a first connecting member (413); the first rotating member (411) comprises a top plate (4111) and two first rotating plates (4112) respectively arranged at opposite ends of the top plate (4111); the top plate (4111) is connected to the laser sensor (5); the first rotating plate (4112) extends from the top plate (4111) in a direction away from the laser sensor (5); the first rotating plate (4112) 2) a first rotating hole (431) is formed, the second fixing member (412) comprises a bottom plate (4121) and two second rotating plates (4122) respectively arranged at opposite ends of the bottom plate (4121), the second rotating plates (4122) are arranged in parallel with the first rotating plate (4112), the second rotating plate (4122) has a second rotating hole (442) corresponding to the first rotating hole (431), and the first connecting member (413) passes through the first rotating hole (431) and the second rotating hole (442); The second angle adjustment component (42) further comprises a second rotating member (422); a third rotating hole (4211) is provided at the top of the first fixing member (421); the second rotating member (422) passes through the third rotating hole (4211); and the second rotating member (422) is also connected to the bottom plate (4121).

3. The laser displacement measuring device according to claim 2, characterized in that: A dial (4212) is also arranged on the top of the first fixing member (421), and scale lines are arranged on the outer wall of the dial (4212); the dial (4212) is a cylinder that passes through the third rotating hole (4211); the inner diameter of the dial (4212) is greater than or equal to the aperture of the third rotating hole (4211); the bottom plate (4121) includes a protrusion (41211) that extends into the dial (4212); and the second rotating member (422) passes through the protrusion (41211), the dial (4212) and the third rotating hole (4211).

4. The laser displacement measuring device according to claim 2, characterized in that: The laser displacement measuring device further comprises a first stopper (43); the first rotating plate (4112) further comprises a first arc-shaped hole (432); the arc center of the first arc-shaped hole (432) coincides with the circle center of the first rotating hole (431); the first stopper (43) passes through the first arc-shaped hole (432) and is connected to the second rotating plate (4122); and / or The laser displacement measuring device further comprises a second stopper (44); a second arc-shaped hole (441) is further provided on the top of the first fixing member (421); the arc center of the second arc-shaped hole (441) coincides with the circle center of the third rotating hole (4211); the second stopper (44) passes through the second arc-shaped hole (441) and is connected to the bottom plate (4121).

5. The laser displacement measuring device according to claim 2, characterized in that: The first rotating member (411) of the first angle adjustment component (41) has a rotational freedom of rotation along a vertical plane relative to the second fixed member (412), and the first angle adjustment component (41) has a rotational freedom of rotation along a horizontal plane relative to the first fixed member (421) of the second angle adjustment component (42).

6. The laser displacement measuring device according to claim 1, characterized in that: The column (2) has a wing plate (22), and the bracket (3) includes a first fixing plate (31) and a second fixing plate (32), wherein the first fixing plate (31) and the second fixing plate (32) are arranged on opposite sides of the wing plate (22) in a thickness direction, and the first fixing plate (31) and the second fixing plate (32) are connected to clamp the wing plate (22).

7. The laser displacement measuring device according to claim 6, characterized in that: The first fixing plate (31) comprises a supporting section (311) corresponding to the wing plate (22) and a connecting section (312) connected to the first fixing member (421), wherein the connecting section (312) is arranged at an end of the first fixing plate (31) along the length direction; The second fixing plate (32) is arranged corresponding to the end of the supporting section (311) close to the connecting section (312), and the second fixing plate (32) has a tooth portion (321) abutting against the wing plate (22), and the tooth portion (321) and the supporting section (311) clamp the wing plate (22).

8. The laser displacement measuring device according to claim 7, characterized in that: The laser displacement measuring device comprises two targets (6) and two laser sensors (5); the bracket (3) comprises two second fixing plates (32); the two second fixing plates (32) are respectively arranged in one-to-one correspondence with the two ends of the first fixing plate (31); the first fixing plate (31) is respectively provided with a connecting section (312) at both ends along the length direction; the laser sensors (5) are arranged in one-to-one correspondence with the connecting sections (312); and the laser sensors (5) are arranged in one-to-one correspondence with the targets (6).

9. The laser displacement measuring device according to claim 1, characterized in that: The target (6) is a wedge, one side wall of the target (6) is in contact with the rail (1), and the other side wall of the target (6) is arranged toward the laser sensor (5).

10. The laser displacement measuring device according to claim 1, characterized in that: The laser displacement measuring device further comprises a data processing device (8) and a solar panel (9); the data processing device (8) is electrically connected to the laser sensor (5); the solar panel (9) is electrically connected to the data processing device (8); and the data processing device (8) and the solar panel (9) are arranged on the column (2).

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