CN217931428U

CN217931428U - Steel rail detection equipment

Info

Publication number: CN217931428U
Application number: CN202221847621.XU
Authority: CN
Inventors: 陈韬阳; 方遒
Original assignee: Xiamen University of Technology
Current assignee: Xiamen University of Technology
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-11-29
Anticipated expiration: 2032-07-18

Abstract

The utility model provides a rail check out test set, it includes: the frame is constructed into an annular structure, and a steel rail transportation channel is surrounded by the annular structure; the ultrasonic detection module comprises 4 ultrasonic sensing assemblies, 4 ultrasonic sensing assemblies and an ultrasonic detection module, wherein the 4 ultrasonic sensing assemblies are arranged on the rack and are arranged at intervals in the circumferential direction; the eddy current detection module comprises 4 eddy current sensors, and the 4 eddy current sensors are configured on the rack and are arranged at intervals in the circumferential direction. The rail detection equipment uses the imaging module, the ultrasonic detection module and the eddy current detection module, can realize detection and positioning of surface and internal flaws of the steel rail, and achieves the purpose of accurately controlling the quality of the steel rail.

Description

Steel rail detection equipment

Technical Field

The utility model relates to a rail detection area especially relates to a rail check out test set.

Background

In rail manufacturing, rails that pass through rolling mills often suffer from a number of drawbacks including: (1) Appearance quality defects such as rail surface cracks, rolling marks, scratches, and geometric tolerances, flatness, etc. of the rail. (2) Inherent quality aspects such as the presence of metallurgical defects such as inclusions, segregation, and the like. These defects, as described above, can affect the outgoing quality of the rail and can also be a cause of damage to the rail during use.

In view of this, the present application is specifically made.

Disclosure of Invention

The utility model aims to solve the technical problem that overcome above-mentioned prior art at least not enough, and provide a simple structure, and can detect the check out test set of rail quality.

In order to achieve the purpose, the utility model adopts the technical scheme as follows: a rail detecting apparatus includes:

a frame configured as an annular structure surrounding a rail transport passageway;

the imaging module is configured on the frame and comprises 4 imaging assemblies arranged on the annular structure at intervals, the imaging assemblies are respectively configured to acquire images of a certain area of the steel rail in the circumferential direction, and the images of the area acquired by the 4 imaging assemblies form an image of 360 degrees of the steel rail in the circumferential direction.

Preferably, the imaging module comprises 4 illumination assemblies, and each illumination assembly is arranged between two imaging assemblies along the circumferential direction.

Preferably, 4 imaging assemblies are arranged at equal intervals in the circumferential direction, and 4 illuminating assemblies are arranged at equal intervals.

Preferably, two of the imaging assemblies are arranged on a horizontal line, and the other two of the imaging assemblies are arranged in a vertical direction.

Preferably, the imaging assembly comprises an image sensor and a laser emitter, and an included angle between an extension line of an emission center of the laser emitter and an optical axis of the image sensor is 0-45 degrees.

Preferably, the frame comprises a first support of a ring structure, and the imaging module is arranged on the first support.

Preferably, the rail detection equipment further comprises 4 ultrasonic sensing assemblies, and the 4 ultrasonic sensing assemblies are configured on the frame and are arranged at equal intervals in the circumferential direction;

two of the ultrasonic sensing assemblies are arranged on a horizontal line, and the other two ultrasonic sensing assemblies are arranged in a vertical direction.

Preferably, the frame comprises a second support of annular configuration, the 4 ultrasonic sensing assemblies being disposed on the second support, the first support and the second support being juxtaposed in the direction of transport of the rail.

Preferably, the rail detection apparatus further includes 4 eddy current sensors, the 4 eddy current sensors are respectively supported on the rack through a driving module, and the driving module is configured to drive the eddy current sensors to move relative to the rack; wherein the 4 eddy current sensors are arranged at equal intervals in the circumferential direction; and two of the eddy current sensors are arranged on a horizontal line, and the other two eddy current sensors are arranged in a vertical direction.

Preferably, the frame comprises a third support of an annular structure, the 4 eddy current sensors are arranged on the third support, and the first support and the second support are juxtaposed in the conveying direction of the steel rail.

Owing to adopted above technical scheme, the utility model discloses following beneficial effect has: the utility model provides a rail check out test set has used imaging module, ultrasonic detection module and eddy current detection module, can realize detecting and fixing a position rail surface, inside flaw, reaches the purpose of accurate management and control rail quality.

Drawings

To illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 and 2 are schematic views respectively showing a rail detection apparatus according to a next embodiment from different viewing angles;

FIG. 3 is a schematic diagram of an eddy current inspection module according to an embodiment;

FIG. 4 is a schematic diagram of an ultrasonic detection module according to one embodiment;

FIG. 5 is a schematic view of an imaging module according to an embodiment.

Reference numerals:

the device comprises a steel rail S, a frame 11, a conveying wheel 12, a third support 13, a first support 14, a second support 15, a supporting slide rail 16, an eddy current detection probe 21, a first single-shaft driver 25, an industrial light source 31, a cross laser emitter 35, an industrial camera 39, high-performance sound insulation foam 51, a second single-shaft driver 52 and an ultrasonic probe 56.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1 to 5, in an embodiment, referring to fig. 1, the steel rail detecting apparatus of the present application includes a frame 11, a conveying wheel 12, and a slide rail 16, where the frame 11 is configured as an annular structure, the slide rail 16 supports the frame 11 to slide along a length direction of a steel rail S, and the conveying wheel 12 is disposed in the middle of the annular structure of the frame 11 for conveying the steel rail S. In one embodiment, the frame 11 is configured to be slidable for detecting the rail S during sliding relative to the rail S. In other embodiments, the frame 11 may be stationary and the rails S may slide to be inspected within the frame 11.

The frame 11 includes a first bracket 14, a second bracket 15, and a third bracket 13. In the present embodiment, the first bracket 14, the second bracket 15, and the third bracket 13 are each an octagonal housing member. In other embodiments, the first bracket 14, the second bracket 15, and the third bracket 13 may also be a circular hollow member, or a hexagonal hollow member, a square hollow member, respectively.

An imaging module is configured on the first support 14, and the imaging module includes 4 imaging assemblies arranged on the annular structure at intervals, the imaging assemblies are respectively configured to acquire an image of a certain region of the steel rail in the circumferential direction, and the images of the regions acquired by the 4 imaging assemblies constitute an image of 360 ° of the steel rail in the circumferential direction. Specifically, the imaging assembly includes 4 illumination assemblies and 4 imaging assemblies, including an industrial camera 39 and a cross laser transmitter 35. The industrial cameras 39 are arranged at equal intervals along the circumferential direction, two industrial cameras 39 are arranged on a horizontal line, the other two industrial cameras 39 are arranged in the vertical direction, namely, the industrial cameras 39 are arranged at four positions of 0 degrees, 90 degrees, 180 degrees and 270 degrees, the cross laser emitter 35 is arranged corresponding to the industrial cameras 39, and the included angle between the cross laser emitter 35 and the industrial cameras 39 is between 0 degrees and 45 degrees. The illumination assembly is an industrial light source 31 disposed between two imaging assemblies. That is, the industrial light source 31 is installed at several positions of 45 °, 135 °, 225 °, and 315 °, and the installation of the light source can avoid the shadow region, so that the imaging quality of the industrial camera 39 is improved.

The second holder 15 is provided with 4 ultrasonic sensor units, and the 4 ultrasonic sensor units are arranged on the frame and arranged at equal intervals in the circumferential direction. The two ultrasonic sensing assemblies are arranged on a horizontal line, and the other two ultrasonic sensing assemblies are arranged in a vertical direction. Specifically, the ultrasonic sensing component is an ultrasonic probe 56, and the ultrasonic probe 56 is arranged at four positions of 0 °, 90 °, 180 ° and 270 °. The second bracket 15 is provided with high-performance soundproof foam 51. The ultrasonic probe 56 is supported on the second support 15 by a second single-axis driver 52, and the second single-axis driver 52 includes a motor and a ball screw transmission for driving the ultrasonic probe 56 toward or away from the steel rail S.

And 4 eddy current sensors are arranged on the third support 13, the 4 eddy current sensors are respectively supported on the rack through a driving module, and the driving module is used for driving the eddy current sensors to move relative to the rack. Wherein the 4 eddy current sensors are arranged at equal intervals in the circumferential direction; and two of the eddy current sensors are arranged on a horizontal line, and the other two eddy current sensors are arranged in a vertical direction. Specifically, the eddy current sensor is an eddy current inspection probe 21, the eddy current inspection probe 21 is supported on the third support 13 by the first single-axis driver 25, and the eddy current inspection probe 21 is arranged at four positions of 0 °, 90 °, 180 °, and 270 °.

Wherein, on arranging 4 eddy current sensor, 4 ultrasonic sensing subassemblies and formation of image module group in different supports respectively, let three detection module group become the modular mode setting for rail check out test set becomes the modularization installation, simplifies mounting structure, and three detection module can change the order assembly along rail S' S direction of delivery.

The working process of the steel rail detection equipment is as follows:

rolled steel rail S enters a rack 11 and is driven by a conveying wheel 12 to enter a detection area I, the detection area I is an eddy current detection module, a first single-shaft driver 25 drives an eddy current detection probe 21 to approach the steel rail S, and the change of eddy current is detected so as to obtain the detection information of the near surface of the steel rail S. And then the steel rail S reaches a detection area II which is a visual-structural light detection area, the four groups of industrial light sources 31 are responsible for illuminating the steel rail S to be detected, the four cross lasers 35 are respectively projected on the side surfaces of the steel rail S, and the four industrial cameras 39 are aligned to the four surfaces of the steel rail to detect the appearance quality of the steel rail S. The steel rail S continues to advance into a third part, which is an ultrasonic detection area, and the position of the ultrasonic phased array probe 56 can be adjusted by adjusting the second single-shaft driver 52 aiming at the steel rails S with different specifications, so that the internal quality of the steel rail S can be detected. The detection device is arranged at the tail end of a production line, so that the steel rail can be rapidly subjected to comprehensive quality detection.

The steel rail is subjected to eddy current detection, visual detection and ultrasonic flaw detection to form the following steps: the comprehensive steel rail quality detection system comprises superficial quality detection, appearance size quality detection and steel rail internal quality detection, and comprehensive steel rail quality data can be formed by the process. The four eddy current detection probes 21 can detect superficial damage of the steel rail S, a structured light detection system formed by combining four groups of industrial cameras and lasers can carry out three-dimensional reconstruction and appearance defect detection (including dimension detection, flatness detection and the like) on the steel rail S, wherein the mass center of the steel rail S is taken as the center of a Cartesian coordinate, the direction perpendicular to the ground is taken as an axis Y, the horizontal plane is taken as an axis X, the image sensor and the laser emitter are arranged in the positions of 0 degrees, 90 degrees, 180 degrees and 270 degrees, the light source is arranged in the positions of 45 degrees, 135 degrees, 225 degrees and 315 degrees, the light source can avoid a shadow area, and the imaging quality is improved. The four groups of ultrasonic phased array probes with adjustable positions can carry out omnibearing detection on the internal defects of the steel rail. And a fusion mode of recording flaw positions and merging the flaw positions into a three-dimensional model generated by a vision-laser detection module is adopted. I: the eddy current inspection portion detects superficial flaws (which may be visible or invisible) and records where the flaw data appears on the rail, ii: the vision-laser inspection portion generates a three-dimensional model having the S-profile, dimensions, flatness, and surface imperfections of the rail. III: ultrasonic flaw detection will record defects inside the rail. Finally, aiming at the positions of the flaws recorded by each module, the positions of superficial flaws detected by eddy currents and internal flaws detected by ultrasonic waves are added into the three-dimensional model during data fusion, and when one steel rail S completely passes through the detection device, a complete data body of a single steel rail is generated.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A rail detection apparatus, comprising:

a frame configured as an endless structure, the endless structure surrounding a rail transport passageway;

the imaging module is configured on the stand and comprises 4 imaging assemblies arranged on the annular structure at intervals, the imaging assemblies are respectively configured to acquire images of a certain area of the steel rail in the circumferential direction, and the images of the area acquired by the 4 imaging assemblies are formed into images of 360 degrees of the steel rail in the circumferential direction;

the ultrasonic detection module comprises 4 ultrasonic sensing assemblies, and the 4 ultrasonic sensing assemblies are configured on the rack and are arranged at intervals in the circumferential direction;

the eddy current detection module comprises 4 eddy current sensors, and the 4 eddy current sensors are configured on the rack and are arranged at intervals in the circumferential direction.

2. The rail inspection apparatus of claim 1, wherein the imaging module includes 4 illumination assemblies, each illumination assembly being disposed circumferentially between two of the imaging assemblies.

3. The rail detecting apparatus according to claim 2, wherein 4 of the imaging modules are arranged at equal intervals in a circumferential direction, and 4 of the illumination modules are arranged at equal intervals.

4. The rail detection apparatus of claim 3, wherein two of the imaging assemblies are arranged in a horizontal line and the other two imaging assemblies are arranged in a vertical direction.

5. The steel rail detecting apparatus according to claim 1, wherein the imaging unit includes an image sensor and a laser emitter, and an angle between an extension line of an emission center of the laser emitter and an optical axis of the image sensor is 0 ° to 45 °.

6. A rail testing apparatus according to any one of claims 1 to 5 wherein said housing includes a first support of annular configuration on which said imaging module is disposed.

7. The rail detection apparatus of claim 6, wherein the 4 ultrasonic sensing assemblies are configured to be arranged at equal intervals in the circumferential direction;

8. The rail detection apparatus of claim 7, wherein the housing includes a second support of annular configuration on which the 4 ultrasonic transducer assemblies are disposed, the first and second supports being juxtaposed in the direction of travel of the rail.

9. The rail testing apparatus of claim 8, wherein each of said 4 eddy current sensors is supported on said frame by a drive module, said drive module being configured to move said eddy current sensor relative to said frame; wherein the 4 eddy current sensors are arranged at equal intervals in the circumferential direction; and two of the eddy current sensors are arranged on a horizontal line, and the other two eddy current sensors are arranged in a vertical direction.

10. The rail inspection apparatus of claim 9, wherein the housing includes a third support of annular configuration, the 4 eddy current sensors being disposed on the third support, the first support, the second support and the third support being juxtaposed in the direction of travel of the rail.