Steel rail contour laser measuring device

Abstract

The utility model provides a steel rail contour laser measuring device, which comprises a main frame, the direction of the measuring device in a use state is taken as a reference, the left side and the right side of the main frame are respectively provided with a group of laser devices and cameras, and the laser devices and the cameras are arranged front and back at intervals on the left side and the right side of the main frame. Each laser is assembled on the main frame through an adjusting assembly arranged corresponding to the laser, the adjusting assemblies can adjust front-back linear displacement and front-back deflection displacement of the lasers assembled on the adjusting assemblies, and the lasers can be rotated around the optical axes of the lasers and positioned. According to the utility model, the phenomenon that the left and right lasers are non-collinear and non-coplanar due to part processing errors and assembly errors is effectively eliminated, and the detection result precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rail profile measuring device, concretely relates to a rail profile laser measuring device. BACKGROUND

[0002] At present, in the field of non-contact measurement of rail profile, laser and camera imaging are mostly used for measurement, in order to increase the precision of measuring the rail head, the profile below the rail head needs to be collected, so that comparison with the standard rail profile can be realized. A pair of lasers are distributed on both sides of the rail, which can detect the lower profile on both sides of the rail head at the same time. However, the structural part error in the production process will cause the light (planar light) emitted by the two lasers after installation to not be on the same plane or line. SUMMARY

[0003] The rail profile laser measuring device designed by the utility model can overcome the deficiency of the measuring device for measuring the rail profile by using a pair of lasers in the prior art, which reduces the measuring precision due to the structural part error in production.

[0004] The utility model discloses a rail profile laser measuring device, which comprises a main frame, and the orientation of the measuring device in use is taken as the reference, a group of lasers and cameras are arranged on the left and right sides of the main frame, the lasers and the cameras are arranged in front of and behind each other on the left and right sides of the main frame, each laser is assembled on the main frame through the corresponding adjustment assembly, the adjustment assembly can adjust the front and rear linear displacement and front and rear deflection displacement of the laser assembled thereon, and the laser can be rotated and positioned around its optical axis.

[0005] In some embodiments, the adjustment assembly comprises an assembly body and two groups of front and rear position adjusting assemblies, a plurality of first through holes are formed in the assembly body, the assembly body is connected with the main frame in a detachable manner through a plurality of first threaded connecting pieces which are correspondingly threaded in each first through hole, the diameter of the first through hole is larger than the outer diameter of the first threaded connecting piece, and each group of front and rear position adjusting assemblies is arranged on the front side and the rear side of the assembly body.

[0006] In some embodiments, the front and rear position adjusting assembly comprises a first positioning seat and a first threaded adjusting rod threaded on the first positioning seat, the free end of the first threaded adjusting rod can abut against the front side end face or the rear side end face of the assembly body, and the first positioning seat is assembled on the top surface of the assembly body.

[0007] In some embodiments, the adjusting assembly further comprises two sets of front and rear deflection adjusting assemblies, a mounting groove is formed on the top surface of the assembly body and a first pressing plate is assembled thereon, a swing adjusting block is clamped between the mounting groove and the first pressing plate, the laser is assembled on the swing adjusting block, the swing adjusting block has a bottom side circular arc surface and a top side circular arc surface, the top surface of the mounting groove has a first circular arc wall surface matching the shape of the bottom side circular arc surface, the bottom surface of the first pressing plate has a first circular arc surface protrusion matching the shape of the top side circular arc surface, and each set of the front and rear deflection adjusting assemblies is respectively located at the front side and the rear side of the assembly body.

[0008] In some embodiments, the front and rear deflection adjusting assembly comprises a second positioning seat and a second threaded adjusting rod screwed on the second positioning seat, and the free end of the second threaded adjusting rod can abut against the front side end surface or the rear side end surface of the swing adjusting block.

[0009] In some embodiments, two second positioning seats are respectively fixedly assembled on the front side end surface and the rear side end surface of the assembly body.

[0010] In some embodiments, the front side end surface and the rear side end surface of the first pressing plate are respectively formed with a through groove extending along the left-right direction of the first pressing plate, and the free end of the second threaded adjusting rod is located in the through groove.

[0011] In some embodiments, the first circular arc surface protrusion has two left-right direction spaced apart ones of the first pressing plate; and / or, the four corner regions of the first pressing plate are detachably connected with the main frame through second threaded connecting members.

[0012] In some embodiments, a second pressing plate is further assembled on the top surface of the swing adjusting block, the laser is inserted into an axial positioning hole of the swing adjusting block, and the second pressing plate is sleeved on the radial outer side of the laser to form axial positioning of the laser with the axial positioning hole.

[0013] In some embodiments, the axial positioning hole is a tapered hole, a conical surface of revolution matching the tapered hole is formed on the outer circumferential wall of the laser, and the second pressing plate is pressed against the top side end surface of the conical surface of revolution.

[0014] The laser measuring device for rail profile of the utility model, two lasers on left and right sides are assembled on the same main frame, the uniformity of two installation references can be ensured through the size processing of the installation plane of the main frame, the front and rear positions and the front and rear deflection angles of the two lasers can be adjusted through the adjusting assembly, the laser can also rotate and position around the optical axis, thus the collinearity and the coplanarity of the laser light emitted by the two lasers can be accurately and conveniently adjusted, the verticality between the two lasers and the corresponding rail surface can be realized, the phenomenon that the left and right two lasers are not collinear and coplanar due to the component processing error and the assembly error is effectively eliminated, and the detection result precision is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is the stereogram structural schematic diagram of the laser measuring device for rail profile in the utility model embodiment;

[0016] Figure 2 is Figure 1 the stereogram structural schematic diagram of the adjusting assembly in the utility model embodiment;

[0017] Figure 3 is Figure 2 the structural exploded schematic diagram (part) of the adjusting assembly in the utility model embodiment;

[0018] Figure 4 is Figure 2 one transverse sectional schematic diagram of the adjusting assembly in the utility model embodiment;

[0019] Figure 5 is Figure 2 one longitudinal sectional schematic diagram of the adjusting assembly in the utility model embodiment.

[0020] In the drawing: 1, main frame; 2, laser; 21, conical surface rotary body; 3, camera; 41, assembly main body; 411, first threaded connecting piece; 42, installation groove; 43, first pressing plate; 431, first circular arc surface convex; 432, second threaded connecting piece; 44, swing adjusting block; 441, axial positioning hole; 51, first positioning seat; 52, first threaded adjusting rod; 61, second positioning seat; 62, second threaded adjusting rod; 7, second pressing plate. DETAILED DESCRIPTION

[0021] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations, however, can be implemented in many different forms and should not be construed as limited to the implementations set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example implementations to those skilled in the art. In the drawings, the thicknesses of regions and layers can be exaggerated for clarity. Like reference numerals can be used to refer to like elements throughout the several figures of the drawings, and description of the same elements can be omitted.

[0022] The described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the application.

[0023] The following examples describe a steel rail profile laser measuring device of the present application, and the examples are only part of the embodiments of the present application, but the protection scope of the present application is not limited thereto. All other embodiments obtained by those skilled in the art without creative labor should be covered within the protection scope of the present application.

[0024] Please refer to Figures 1 to 5 According to the embodiments of the present application, a steel rail profile laser measuring device is provided, which comprises a main frame 1 used as a component assembly body, and the orientation in the use state of the measuring device is taken as the reference (the specific orientation is shown in front and back, left and right in Figure 1 The left and right sides of the main frame 1 are respectively provided with a group of lasers 2 and cameras 3, wherein the lasers 2 are used to emit detection line lasers which form intersection lines with the outer profiles of the left and right sides of the steel rail, and the cameras 3 are used to take images of the intersection lines of the left and right sides of the steel rail in real time. The lasers 2 and the cameras 3 are arranged in front of and behind each other on the left and right sides of the main frame 1, and each laser 2 is assembled on the main frame 1 through an adjusting assembly (not marked in the figure) arranged corresponding to the laser 2. The adjusting assembly can adjust the front and back linear displacement and the front and back deflection displacement of the laser 2 assembled thereon, and the laser 2 can be rotated and positioned around its optical axis. The front and back deflection position is also the front and back swing inclination position of the laser 2, that is, the front and back pitch angle of the laser 2.

[0025] In the technical scheme, the two lasers 2 on the left and right sides are assembled on the same main frame 1, the uniformity of the installation reference of the two lasers 2 can be ensured through the size processing of the installation plane of the main frame 1, the front and back positions and the front and back deflection angles of the two lasers 2 can be adjusted through the adjusting assembly, and the laser 2 can also be rotated and positioned around its optical axis, so that the collinearity and coplanarity of the laser light emitted by the two lasers 2 can be accurately and conveniently adjusted, and the perpendicularity of the two lasers 2 to the corresponding steel rail surface can be realized, so that the phenomenon of the non-collinearity and non-coplanarity of the left and right lasers 2 due to the component processing error and assembly error can be effectively eliminated, and the detection result accuracy is improved.

[0026] In some embodiments, the adjusting assembly comprises an assembling body 41 and two sets of front-rear position adjusting assemblies (not labeled in the figure), the assembling body 41 is formed with a plurality of first through holes (not labeled in the figure, in one specific embodiment, four are provided in total), the assembling body 41 is detachably connected with the main frame 1 by a plurality of first threaded connecting members 411 which are correspondingly threaded in the first through holes, and the diameter of the first through holes is larger than the outer diameter of the first threaded connecting members 411, each set of the front-rear position adjusting assemblies is respectively arranged at the front side and the rear side of the assembling body 41, and in one specific embodiment, the first through holes can be waist-shaped holes.

[0027] In the technical solution, since the diameter of the first through holes is larger than the outer diameter of the first threaded connecting members 411, the relative position between the assembling body 41 and the main frame 1 can be flexibly adjusted, that is, in specific use, the first threaded connecting members 411 are screwed to realize the pushing of the assembling body 41 and the mechanical adjustment of the front-rear position thereof, which is simple in structure and convenient to adjust.

[0028] In some embodiments, the front-rear position adjusting assembly comprises a first positioning seat 51 and a first threaded adjusting rod 52 which is threadedly connected to the first positioning seat 51, the free end of the first threaded adjusting rod 52 can abut against the front side end face or the rear side end face of the assembling body 41, and the first positioning seat 51 is assembled on the top surface of the assembling body 41.

[0029] It can be understood that when it is needed to move the assembling body 41 as a whole rearward by a certain distance, the first threaded adjusting rod 52 of the front-rear position adjusting assembly at the front side end face is screwed by a certain distance to push the assembling body 41 rearward, in the adjustment process, the first threaded adjusting rod 52 of the front-rear position adjusting assembly at the rear side leaves a gap with the rear side end face of the assembling body 41, and after the front-rear position of the assembling body 41 is moved to the target position, the first threaded adjusting rod 52 of the front-rear position adjusting assembly at the rear side is screwed to abut against the rear side end face of the assembling body 41, and at the same time, the first threaded connecting members 411 of the assembling body 41 are screwed in place to finally position the assembling body 41. When it is needed to move the assembling body 41 as a whole forward by a certain distance, the reverse operation can be performed, which is not described herein.

[0030] In some embodiments, the adjusting assembly further comprises two sets of front and rear deflection adjusting assemblies (not labeled in the figure), the top surface of the assembly body 41 is formed with a mounting groove 42 and assembled with a first pressing plate 43, the mounting groove 42 and the first pressing plate 43 are clamped with a swing adjusting block 44, the laser 2 is assembled on the swing adjusting block 44, so that the swing adjusting block 44 can drive the laser 2 to swing forward and backward to adjust the pitch angle of the laser beam, the swing adjusting block 44 has a bottom arc surface (not labeled in the figure) and a top arc surface (not labeled in the figure), the top surface of the mounting groove 42 has a first arc wall surface (not labeled in the figure) matched with the shape of the bottom arc surface, and the bottom surface of the first pressing plate 43 has a first arc surface protrusion 431 matched with the shape of the top arc surface, each set of the front and rear deflection adjusting assemblies is respectively arranged on the front side and the rear side of the assembly body 41.

[0031] In the technical solution, the swing adjusting block 44 is clamped between the mounting groove 42 and the first pressing plate 43, and the top surface and the bottom surface of the swing adjusting block 44 respectively slide along an arc direction between the first pressing plate 43 and the mounting groove 42, so as to realize the sliding pitch adjustment of the laser 2 assembled on the swing adjusting block 44, which is simple in structure and convenient to operate.

[0032] As a specific embodiment, the front and rear deflection adjusting assemblies comprise a second positioning seat 61 and a second threaded adjusting rod 62 screwed on the second positioning seat 61, and the free end of the second threaded adjusting rod 62 can abut against the front end surface or the rear end surface of the swing adjusting block 44.

[0033] In the technical solution, the swing angle of the swing adjusting block 44 is adjusted by the pushing of the free end of the second threaded adjusting rod 62, which is simple to realize.

[0034] In some embodiments, the two second positioning seats 61 are respectively fixedly assembled on the front end surface and the rear end surface of the assembly body 41.

[0035] In the technical solution, the second positioning seat 61 is assembled on the assembly body 41, so that the pitch angle adjustment of the laser 2 is more convenient.

[0036] In some embodiments, the front end surface and the rear end surface of the first pressing plate 43 are respectively formed with a through groove (not labeled in the figure) extending along the left and right directions of the first pressing plate 43, and the free end of the second threaded adjusting rod 62 is located in the through groove, as shown in Figure 2 The left and right extension lengths of the through groove are much greater than the diameter of the free end of the second threaded adjusting rod 62.

[0037] In the technical solution, the through groove formed on the end face of the first pressing plate 43 can reduce the difficulty of alignment between the second threaded adjusting rod 62 and the swing adjusting block 44.

[0038] Specifically referring to Figure 3 As shown in the drawings, in some embodiments, the first circular-arc-face protrusions 431 are spaced apart in the left-right direction of the first pressing plate 43, and correspondingly, the top surface of the swing adjusting block 44 has a top-side circular arc surface at the left and right ends thereof, and the middle region does not need to be designed as a circular arc surface, so as to reduce the processing difficulty and processing cost, and at the same time, the middle region can be designed as a flat surface, so as to facilitate the axial positioning of the laser 2.

[0039] Further referring to Figure 3 As shown in the drawings, the four corner regions of the first pressing plate 43 are detachably connected with the main frame 1 through the second threaded connecting members 432, so as to reliably clamp the swing adjusting block 44.

[0040] In some embodiments, the top surface of the swing adjusting block 44 is further assembled with a second pressing plate 7, the laser 2 is inserted into the axial positioning hole 441 of the swing adjusting block 44, and the second pressing plate 7 is sleeved on the radial outer side of the laser 2 to form axial positioning of the laser 2 with the axial positioning hole 441. Specifically, the axial positioning hole 441 is a tapered hole, the outer circumferential wall of the laser 2 is formed with a conical surface of revolution 21 matched with the tapered hole, and the second pressing plate 7 is pressed against the top-side end face of the conical surface of revolution 21, so as to achieve axial accurate positioning of the laser 2. In specific applications, the second pressing plate 7 and the swing adjusting block 44 are not locked, the operator manually rotates the laser 2 to rotate it around its optical axis by a certain angle so that the laser emission outlets of the two lasers 2 on both sides are parallel to each other, and then the second pressing plate 7 is locked to position the laser 2.

[0041] Those skilled in the art can easily understand that the advantageous technical features of the above-mentioned various modes can be freely combined and superimposed without conflict.

[0042] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. 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 measuring device for rail profiles, characterized in that, The device includes a main frame (1). With the orientation of the measuring device in use as a reference, a set of lasers (2) and cameras (3) are respectively arranged on the left and right sides of the main frame (1). The lasers (2) and cameras (3) are arranged at intervals on the left and right sides of the main frame (1). Each laser (2) is assembled on the main frame (1) by an adjustment component that is arranged with its corresponding component. The adjustment component can adjust the linear displacement and deflection displacement of the laser (2) assembled on it. The laser (2) can be rotated and positioned around its optical axis.

2. The rail profile laser measuring device according to claim 1, characterized in that, The adjustment assembly includes an assembly body (41) and two sets of front and rear position adjustment components. The assembly body (41) has a plurality of first through holes. The assembly body (41) passes through each of the first through holes in a corresponding manner via a plurality of first threaded connectors (411) to be detachably connected to the main frame (1). The diameter of the first through hole is larger than the outer diameter of the first threaded connector (411). Each set of front and rear position adjustment components is located on the front and rear sides of the assembly body (41).

3. The rail profile laser measuring device according to claim 2, characterized in that, The front and rear position adjustment assembly includes a first positioning seat (51) and a first threaded adjustment rod (52) threadedly connected to the first positioning seat (51). The free end of the first threaded adjustment rod (52) can abut against the front end face or the rear end face of the assembly body (41). The first positioning seat (51) is assembled on the top surface of the assembly body (41).

4. The rail profile laser measuring device according to claim 2, characterized in that, The adjustment assembly also includes two sets of front and rear deflection adjustment components. A mounting groove (42) is formed on the top surface of the assembly body (41) and a first pressure plate (43) is assembled thereon. A swing adjustment block (44) is held between the mounting groove (42) and the first pressure plate (43). The laser (2) is assembled on the swing adjustment block (44). The swing adjustment block (44) has a bottom arc surface and a top arc surface. The top surface of the mounting groove (42) has a first arc wall surface that matches the shape of the bottom arc surface. The bottom surface of the first pressure plate (43) has a first arc surface protrusion (431) that matches the shape of the top arc surface. Each set of front and rear deflection adjustment components is located on the front and rear sides of the assembly body (41).

5. The rail profile laser measuring device according to claim 4, characterized in that, The front and rear deflection adjustment assembly includes a second positioning seat (61) and a second threaded adjustment rod (62) threadedly connected to the second positioning seat (61). The free end of the second threaded adjustment rod (62) can abut against the front end face or the rear end face of the swing adjustment block (44).

6. The rail profile laser measuring device according to claim 5, characterized in that, The two second positioning seats (61) are respectively fixedly assembled on the front end face and the rear end face of the assembly body (41).

7. The rail profile laser measuring device according to claim 5, characterized in that, The front and rear end faces of the first pressure plate (43) are respectively formed with through grooves extending in the left and right directions of the first pressure plate (43), and the free end of the second threaded adjusting rod (62) is located in the through groove.

8. The rail profile laser measuring device according to claim 4, characterized in that, The first arc-shaped protrusion (431) has two spaced apart in the left and right directions of the first pressure plate (43); and / or, the four corner areas of the first pressure plate (43) are detachably connected to the main frame (1) by the second threaded connector (432).

9. The rail profile laser measuring device according to claim 4, characterized in that, A second pressure plate (7) is also assembled on the top surface of the swing adjustment block (44). The laser (2) is inserted into the axial positioning hole (441) of the swing adjustment block (44). The second pressure plate (7) is fitted on the radial outside of the laser (2) to form an axial positioning of the laser (2) with the axial positioning hole (441).

10. The rail profile laser measuring device according to claim 9, characterized in that, The axial positioning hole (441) is a tapered hole, and a conical rotating body (21) matching the tapered hole is formed on the outer circumferential wall of the laser (2). The second pressure plate (7) presses against the top end face of the conical rotating body (21).

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