Portable modular detection box capable of being carried on daily running train

Abstract

The utility model discloses a portable modularized detection box capable of being carried on a daily running train, and belongs to the field of railway inspection. A partition plate is horizontally fixed in the shell, a clamping groove matched with the protruding block is formed in the bottom of the laser radar, the laser radar is fixed to the partition plate through the protruding block embedded in the clamping groove, and the power source is fixed to the partition plate. The two longitudinal guide rails are arranged in a bilateral symmetry mode and fixed in the shell, and the two ends of the transverse guide rail are arranged on the two longitudinal guide rails in a sliding mode and abut against the longitudinal guide rails through jackscrews respectively. Or, the upper ends of the transverse guide rails are fixedly connected with cylinder rods of two air cylinders, the cylinder rods of the two air cylinders penetrate through the partition plate in a sliding mode, and cylinder bodies of the air cylinders are fixed to the partition plate; the camera is slidably connected with the transverse guide rail through a linear sliding block. A light source is fixed below the inner side of the housing. The power supply is electrically connected with the light source, the laser radar and the camera. The railway track detection box can detect a railway track in real time under the condition that normal operation of a train is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to a portable modular detection box capable of being carried on the daily running train, and belongs to the field of railway inspection. BACKGROUND

[0002] In the heavy haul railway bridge track detection, the traditional measurement method is time-consuming and labor-consuming, and a large number of observation points are needed, especially in the detection of long-distance railway track, the observation point is not only difficult to set, but also may threaten the safety of the instrument and the field personnel. In order to solve these problems, mobile laser scanning technology as a new type of measuring means can obtain a large amount of point information in a short time in a non-contact manner, realize automatic data processing, and is especially suitable for large-scale, long-distance and continuous detection of railway track.

[0003] At present, mobile laser scanning equipment needs to be carried on two types of track detection equipment: one is a small volume portable hand-push track detection vehicle; the other is a large track detection vehicle. These devices need to be scanned along the railway track continuously, and can only be carried out during the railway window period. However, with the continuous growth of heavy haul railway operation demand in China, the train density of railway line is also increasing, which leads to shorter operation time for railway maintenance, and also puts forward higher requirements for railway operation safety.

[0004] In view of the problems existing in the prior art, it is necessary to develop a new type of detection device installed on the daily running train, which can realize real-time detection of railway track without affecting the normal operation of the train. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at solving the problem that the existing track mobile laser scanning detection equipment can only be scanned and detected during the railway window period, and provides a portable modular detection box capable of being carried on the daily running train.

[0006] In order to achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0007] A portable modular detection box capable of being carried on the daily running train, comprising a shell, a power supply, a laser radar, a camera, a horizontal guide rail, a vertical guide rail, a light source, a linear slide and a cylinder; the number of vertical guide rails, light sources and cylinders is two;

[0008] The front end and the lower end of the shell are open ends, a partition plate is horizontally fixed in the shell, a protrusion is arranged on the upper end face of the partition plate, the bottom of the laser radar is provided with a clamping groove matched with the protrusion, the laser radar is fixed on the partition plate through the protrusion embedded in the clamping groove, and the power supply is fixed on the partition plate.

[0009] Further, a plurality of longitudinal position adjusting screw holes are symmetrically arranged on the front side wall of the two longitudinal guide rails, the plurality of longitudinal position adjusting screw holes are equidistantly arranged along the height direction of the longitudinal guide rail, and the transverse guide rail is fixed on the longitudinal guide rail through the jackscrew in screw connection with the longitudinal position adjusting screw hole.

[0010] Further, a plurality of transverse position adjusting screw holes are equidistantly arranged along the length direction of the rear side wall of the transverse guide rail, two through holes I are arranged on the linear slide block, the two through holes I correspond to the transverse position adjusting screw holes, and the linear slide block is fixedly connected with the transverse guide rail through the bolt in screw connection with the transverse position adjusting screw hole and penetrating through the through hole I.

[0011] Further, the longitudinal guide rail is in the shape of a dovetail groove, the two ends of the transverse guide rail are provided with dovetail end heads matched with the dovetail groove, a guide groove is arranged on the front side face of the transverse guide rail, the length of the guide groove is consistent with the distance between the two longitudinal guide rails, and the plurality of transverse position adjusting screw holes are arranged on the rear side wall of the guide groove.

[0012] Further, a plurality of threaded holes for being connected with the head part of the train are arranged on the rear side wall of the shell, the plurality of threaded holes are arranged in a matrix form, and the rear side wall of the shell and the head part of the train are fixedly connected through bolts.

[0013] Further, the detection box further comprises a rubber pad, a plurality of through holes II are arranged on the rubber pad at positions corresponding to the plurality of threaded holes, and the rear side wall of the shell, the rubber pad and the head part of the train are fixedly connected through bolts.

[0014] Further, the shell is made of aluminum alloy material and is welded into an integrated structure.

[0015] Further, the transverse guide rail and the two longitudinal guide rails are straight aluminum alloy guide rails.

[0016] Compared with the prior art, the shell has the advantages that:

[0017] 1. The detection box of this utility model can perform real-time detection of railway tracks without affecting the normal operation of trains, and the detection has the characteristics of wide range, long distance and long duration.

[0018] 2. The detection box of this utility model is equipped with a rubber pad at the connection between it and the front of the train. This not only plays a shock-absorbing role, reducing the vibration of the detection box during train operation, but also protects the detection box and ensures the accuracy of the detection.

[0019] 3. The camera can be adjusted left and right as well as in height according to the needs of the detection. The adjustment is convenient and reliable. Attached Figure Description

[0020] Figure 1 This is a front view of a portable modular testing box of this utility model that can be mounted on a train in daily operation;

[0021] Figure 2 This is a partial cross-sectional view showing the sliding connection between the end of the transverse guide rail and the longitudinal guide rail.

[0022] Figure 3 This is an axonometric drawing of a portable modular testing box that can be mounted on a train in daily operation according to this utility model; the yellow part in the figure represents the color of the light source 7;

[0023] Figure 4 This is a rear view of a portable modular testing box of this utility model that can be mounted on a train in daily operation;

[0024] The component names and reference numerals in the above figures are as follows:

[0025] 1. Housing; 2. Power supply; 3. LiDAR; 4. Camera; 5. Horizontal guide rail; 6. Vertical guide rail; 7. Light source; 8. Linear slider; 9. Dovetail groove; 11. Protrusion; 12. Screw hole; 13. Rubber pad; 14. Cylinder; 15. Partition plate. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0027] Specific implementation method one: as follows Figures 1-4As shown, the portable modular detection box of the present embodiment can be mounted on a daily running train, which comprises a shell 1, a power supply 2, a laser radar 3, a camera 4, a transverse guide rail 5, a longitudinal guide rail 6, a light source 7, a linear slide 8 and a cylinder 14; the number of longitudinal guide rails 6, light sources 7 and cylinders 14 is two; the front end and the lower end of the shell 1 are open ends, a partition plate 15 is horizontally fixed in the shell 1, a protrusion 11 is arranged on the upper end surface of the partition plate 15, the bottom of the laser radar 3 is provided with a clamping groove matched with the protrusion 11, the laser radar 3 is fixed on the partition plate 15 through the protrusion 11 embedded in the clamping groove, and the power supply 2 is fixed on the partition plate 15; the two longitudinal guide rails 6 are symmetrically arranged on the left and right inner side walls of the shell 1 and are fixed thereon, and the upper ends of the two longitudinal guide rails 6 are fixedly connected with the lower end surface of the partition plate 15; the two ends of the transverse guide rail 5 are slidingly arranged on the two longitudinal guide rails 6, and the two ends of the transverse guide rail 5 are respectively abutted on the longitudinal guide rails 6 through top screws; alternatively, the upper end of the transverse guide rail 5 is fixedly connected with the cylinder rods of the two symmetrically arranged cylinders 14, the cylinder rods of the two cylinders 14 slidingly pass through the partition plate 15, and the cylinder body of the cylinder 14 is fixed on the partition plate 15; the camera 4 is fixed on the linear slide 8, and the linear slide 8 is slidingly arranged on the transverse guide rail 5; two light sources 7 are symmetrically fixed below the inner side of the shell 1, a double light source symmetric lighting mode is adopted, and the power supply 2 is electrically connected with the light sources 7, the laser radar 3 and the camera 4 respectively.

[0028] Specific implementation method two: as shown in Figure 1 , Figure 3 The present embodiment is a further description of the specific implementation method one, a plurality of longitudinal positioning screw holes are symmetrically arranged on the front side wall of the two longitudinal guide rails 6, the longitudinal positioning screw holes are equally spaced along the height direction of the longitudinal guide rail 6, and the transverse guide rail 5 is fixed on the longitudinal guide rail 6 through the top screws rotatably connected with the longitudinal positioning screw holes.

[0029] Specific implementation method three: as shown in Figure 1 , Figure 3 The present embodiment is a further description of the specific implementation method one, a plurality of longitudinal positioning screw holes are symmetrically arranged on the front side wall of the two longitudinal guide rails 6, the longitudinal positioning screw holes are equally spaced along the height direction of the longitudinal guide rail 6, and the transverse guide rail 5 is fixed on the longitudinal guide rail 6 through the top screws rotatably connected with the longitudinal positioning screw holes.

[0030] Specific implementation method four: as shown in Figure 1 , Figure 2As shown in the figure, the embodiment is a further description of the specific embodiment three, the longitudinal guide rail 6 is dovetail groove 9 shape, the two ends of the transverse guide rail 5 are provided with dovetail end head matched with the dovetail groove 9, the front side of the transverse guide rail 5 is provided with a guide groove, the length of the guide groove is consistent with the distance between the two longitudinal guide rails 6, and the plurality of transverse positioning screw holes are arranged on the rear side wall of the guide groove, so that the left and right positions of the camera 4 are adjusted, and the fixing of the camera 4 is facilitated.

[0031] Specific embodiment five: as shown in the figure, Figure 3 , Figure 4 As shown in the figure, the embodiment is a further description of the specific embodiment one, the rear side wall of the shell 1 is provided with a plurality of threaded holes 12 for connecting with the head of the train, and the plurality of threaded holes 12 are arranged in a matrix form, and the rear side wall of the shell 1 and the head of the train are fixedly connected through bolts.

[0032] Specific embodiment six: as shown in the figure, Figure 3 , Figure 4 As shown in the figure, the embodiment is a further description of the specific embodiment five, the detection box further comprises a rubber pad 13, a plurality of through holes two are arranged on the rubber pad 13 at positions corresponding to the plurality of threaded holes 12, and the rear side wall of the shell 1, the rubber pad 13 and the head of the train are fixedly connected through bolts. Since the vibration of the train has a significant influence on the quality of laser scanning and camera imaging, the connection between the detection box and the head of the train is the main way of vibration transmission. In order to ensure the stability of the detection process, the rubber pad 13 is customized according to the cross-sectional size of the connection. The rubber pad 13 is arranged between the shell 1 and the head of the train, which is beneficial to enhance the shock absorption performance of the detection box.

[0033] Specific embodiment seven: as shown in the figure, Figure 3 As shown in the figure, the embodiment is a further description of the specific embodiment one, the shell 1 is made of aluminum alloy material and is welded into an integral structure.

[0034] Specific embodiment eight: as shown in the figure, Figure 1 , Figure 3 As shown in the figure, the embodiment is a further description of the specific embodiment one, the transverse guide rail 5 and the two longitudinal guide rails 6 are straight aluminum alloy guide rails.

[0035] The use steps of the portable modular detection box which can be carried on the daily running train of the utility model are as follows:

[0036] (1) install the camera 4 on the transverse guide rail 5 through the linear slide 8, reasonably select the left and right positions and height of the camera 4 according to the lens parameters of the camera 4; wherein the height adjustment can be manually adjusted or adjusted through the air cylinder; manual adjustment: after pushing the transverse guide rail 5 to the required height, the transverse guide rail 5 is fixed by the top wire, so as to be fixed; air cylinder adjustment: the two air cylinders are controlled to move synchronously through the controller (the two air cylinders are electrically connected with the controller, and the controller is prior art, not shown in the drawing), so that the cylinder rod of the air cylinder drives the transverse guide rail 5 to the required height;

[0037] (2) install the laser radar 3 on the partition plate of the detection box;

[0038] (3) arrange the rubber pad 13 between the connection between the shell 1 and the head of the train, and fix the shell 1 and the rubber pad 13 with the head of the train through the bolt connection mode;

[0039] (4) adopt a double-side lighting mode, arrange the light source 7 symmetrically on the left and right sides, arrange the power supply 2 on the detection box, and electrically connect the power supply 2 with the laser radar 3, the camera 4 and the light source 7, so as to guarantee the endurance of the camera 4, the light source 7 and the laser radar 3.

[0040] The camera used in the utility model is a linear array industrial camera.

[0041] The function of the laser radar is:

[0042] (1) high-precision ranging and imaging: the laser radar measures the target position (distance and angle), motion state (speed, vibration and attitude) and shape by emitting laser pulses and receiving reflected light; it can accurately measure the target position, detect, identify, distinguish and track the target;

[0043] (2) train control and safety: the laser radar can scan obstacles in front of the vehicle, help the train control system avoid collision, and provide high-precision position and speed measurement when the train enters the tunnel or bridge structure, to ensure the safe operation of the train;

[0044] (3) accurate track measurement: the laser radar scans the track and monitors the deformation and cracks of the track in real time, and these data can be used to guide the maintenance work to ensure the safety and stability of the track.

[0045] The function of the camera is:

[0046] (1) image acquisition and processing: the camera can acquire the image of the track and the surrounding environment, extract the rail boundary in the image through video processing technology, and convert the points scanned by the laser radar into corresponding projection points on the image according to the internal parameter matrix of the camera and the monocular ranging model;

[0047] (2) Obstacle detection: Using video processing techniques, cameras can help detect obstacles on the track by analyzing image regions within predefined edges around the track to determine if they are obstacles;

[0048] (3) Laser radar assistance: In some systems, such as rail transit AEB systems, laser radar assisted vision SLAM systems, cameras are used in conjunction with laser radars to provide color point cloud data and enhance the ability to identify obstacles.

[0049] Main content of track detection:

[0050] (1) Geometric shape and size: including track gauge, rail wear, rail flatness, track curvature, track longitudinal slope, track lateral slope, etc.

[0051] (2) Track defects: detect cracks, corrosion, fatigue and other defects of the track;

[0052] (3) Fixed system: detect whether the track's fasteners, such as spikes, ballast, rail clips, etc. are secure;

[0053] (4) Track irregularity: assess track quality, detect track size and irregularity defects.

[0054] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims, not the above description, and therefore all changes falling within the meaning and scope of the equivalent conditions of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0055] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A portable modular detection box mountable on a daily running train, characterized in that: It comprises a shell (1), a power supply (2), a laser radar (3), a camera (4), a transverse guide rail (5), a longitudinal guide rail (6), a light source (7), a linear slider (8) and a gas cylinder (14); the number of the longitudinal guide rail (6), the light source (7) and the gas cylinder (14) is two; The front end and the lower end of the shell (1) are open ends, a partition plate (15) is horizontally fixed in the shell (1), a protrusion (11) is arranged on the upper end face of the partition plate (15), the bottom of the laser radar (3) is provided with a clamping groove matched with the protrusion (11), the laser radar (3) is fixed on the partition plate (15) through the protrusion (11) embedded in the clamping groove, and the power supply (2) is fixed on the partition plate (15); the two longitudinal guide rails (6) are symmetrically arranged on the left and right inner side walls of the shell (1) and are fixed thereon, and the upper ends of the two longitudinal guide rails (6) are fixedly connected with the lower end face of the partition plate (15); the two ends of the transverse guide rail (5) are slidingly arranged on the two longitudinal guide rails (6), and the two ends of the transverse guide rail (5) are respectively abutted against the longitudinal guide rails (6) through top screws; alternatively, the upper end of the transverse guide rail (5) is fixedly connected with the cylinder rods of the two symmetrically arranged gas cylinders (14), the cylinder rods of the two gas cylinders (14) slidingly pass through the partition plate (15), and the cylinder bodies of the gas cylinders (14) are fixed on the partition plate (15); the camera (4) is fixed on the linear slider (8), and the linear slider (8) is slidingly arranged on the transverse guide rail (5); two light sources (7) are symmetrically fixed below the inner side of the shell (1), and the power supply (2) is electrically connected with the light sources (7), the laser radar (3) and the camera (4).

2. The portable modular detection box according to claim 1, wherein: A plurality of longitudinal position adjusting screw holes are symmetrically arranged on the front side walls of the two longitudinal guide rails (6), the longitudinal position adjusting screw holes are equidistantly arranged along the height direction of the longitudinal guide rail (6), and the transverse guide rail (5) is fixed on the longitudinal guide rail (6) through top screws combined with the longitudinal position adjusting screw holes.

3. The portable modular detection box according to claim 1, wherein: A plurality of transverse position adjusting screw holes are equidistantly arranged on the rear side wall of the transverse guide rail (5) along the length direction, two through holes I are arranged on the linear slider (8), the two through holes I correspond to the transverse position adjusting screw holes, and the linear slider (8) is fixedly connected with the transverse guide rail (5) through bolts combined with the transverse position adjusting screw holes and passing through the through holes I.

4. The portable modular detection box according to claim 3, wherein: The longitudinal guide rail (6) is in the shape of a swallow-tail groove (9), the two ends of the transverse guide rail (5) are provided with swallow-tail end heads matched with the swallow-tail groove (9), a guide groove is arranged on the front side face of the transverse guide rail (5), the length of the guide groove is consistent with the distance between the two longitudinal guide rails (6), and the plurality of transverse position adjusting screw holes are arranged on the rear side wall of the guide groove.

5. The portable modular detection box according to claim 1, wherein: A plurality of screw holes (12) for connecting with the head part of the train are arranged on the rear side wall of the shell (1), the plurality of screw holes (12) are arranged in a matrix form, and the rear side wall of the shell (1) is fixedly connected with the head part of the train through bolts.

6. The portable modular detection box according to claim 5, wherein: The detection box further comprises a rubber pad (13), a plurality of through holes II are arranged on the rubber pad (13) at positions corresponding to the plurality of screw holes (12), and the rear side wall of the shell (1), the rubber pad (13) and the head part of the train are fixedly connected through bolts.

7. The portable modular detection box according to claim 1, wherein: The shell (1) is made of aluminum alloy material and is welded into an integrated structure.

8. The portable modular detection box according to claim 1, wherein: The transverse guide rail (5) and the two longitudinal guide rails (6) are straight aluminum alloy guide rails.

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