CN111976786A

CN111976786A - Track inspection instrument

Info

Publication number: CN111976786A
Application number: CN202010899887.8A
Authority: CN
Inventors: 陶捷; 朱洪涛
Original assignee: Jiangxi Everbright Measurement And Control Technology Co ltd
Current assignee: Jiangxi Everbright Measurement And Control Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-11-24

Abstract

The invention provides a track inspection instrument, which comprises a track inspection trolley and two detectors carried on the track inspection trolley, wherein the two detectors are respectively arranged at two ends of the track inspection trolley and are respectively used for detecting steel rails at two sides, each detector comprises a shell fixed on the track inspection trolley, a light-transmitting element embedded at the bottom of the shell and at least one camera arranged in the shell, and the cameras shoot the steel rails and/or fasteners through the light-transmitting elements. According to the rail inspection trolley, the detector is erected on the rail inspection trolley, when the rail inspection trolley travels on the rail, the camera of the detector shoots the steel rail and/or the fastener to collect the picture of the steel rail and/or the fastener, so that the picture of the steel rail and/or the fastener only needs to be analyzed subsequently, multiple persons do not need to be distributed to conduct segmented inspection, the rail inspection efficiency is improved, and the labor intensity is greatly reduced.

Description

Track inspection instrument

Technical Field

The invention relates to the technical field of rail detection, in particular to a rail polling instrument.

Background

The rail is a route paved by strip-shaped steel rails for running of rail traffic trains such as trains and trams, and is generally paved on the ground, tunnels, bridges and other structures, and two sides of the steel rails are fixed through fasteners. When a rail transit train runs, the rail is abraded and vibrated, so that the phenomena of crack of the top surface of the steel rail, stripping and block falling of the top surface or the end part of the steel rail, loss of fasteners, deflection or fracture and the like are easily caused.

In order to ensure the normal operation of the rail transit train, whether the rail has the phenomenon or not is generally required to be regularly inspected, in the prior art, the rail is regularly inspected by manpower, generally, a section of rail needs to be distributed to a plurality of persons for subsection inspection, the efficiency is low, and the labor intensity of workers is high.

Disclosure of Invention

Based on the technical problem, the invention aims to provide a rail polling instrument to solve the technical problem of labor intensity of rail polling in the prior art.

According to the embodiment of the invention, the rail inspection instrument comprises a rail inspection trolley and two detectors carried on the rail inspection trolley, wherein the two detectors are respectively arranged at two ends of the rail inspection trolley and are respectively used for detecting steel rails at two sides, each detector comprises a shell fixed on the rail inspection trolley, a light-transmitting element embedded at the bottom of the shell and at least one camera arranged in the shell, and the cameras shoot the steel rails and/or fasteners through the light-transmitting elements.

Furthermore, the detector further comprises at least one light source, and each camera is configured with one light source.

Further, the quantity of camera is three, one of them the camera just sets up to the rail top surface to shoot the rail, two in addition the camera symmetry sets up in rail both sides and just to the fastener setting of rail, shoots the fastener of rail both sides.

Further, the light sources of the three cameras form a continuous light path perpendicular to the steel rail.

Further, the included angle between the camera which is arranged right opposite to the top surface of the steel rail and the camera which is arranged right opposite to the fastener is 30 degrees.

Furthermore, the shell is arc-shaped, and the camera which is arranged right opposite to the top surface of the steel rail is arranged at the center of the shell.

Furthermore, the detector also comprises a cooling fan, and the cooling fan is arranged between every two adjacent cameras.

Furthermore, the rail inspection trolley comprises a beam body, the beam body comprises a cross beam and a longitudinal arm which are connected in a T shape, one end, far away from the longitudinal arm, of the cross beam is provided with the detector, and one end of the longitudinal arm is provided with the detector.

Further, the two detectors are located on the same side or two sides of the central axis of the cross beam.

Further, the rail inspection trolley further comprises a plurality of wheel sets, the wheel sets are arranged on the beam body and used for achieving the rail inspection instrument to walk on the rail, the wheel sets comprise walking wheels walking on the top surface of the steel rail and mileage sensors for detecting the walking wheels.

The invention has the beneficial effects that: through setting up the detector on the dolly is examined to the rail, when the dolly was examined to the rail walked on the track to the rail, the camera of detector was shot rail and/or fastener to gather the picture of rail and/or fastener, follow-up like this only need to rail and fastener the picture carry out the analysis can, need not to distribute many people and carry out the segmentation and patrol and examine, improve the track and patrol and examine efficiency, greatly reduced artifical intensity of labour.

Drawings

Fig. 1 is a schematic perspective view of a track inspection device according to a first embodiment of the present invention;

FIG. 2 is an enlarged view taken at I in FIG. 1;

fig. 3 is a schematic diagram of a use state of the track patrol instrument in the first embodiment of the invention;

FIG. 4 is a schematic view showing the internal structure of the probe according to the first embodiment of the present invention;

fig. 5 is an external structural view of the detector in the first embodiment of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5, a track inspection device according to a first embodiment of the present invention is shown, which includes a track inspection trolley 10 and two detectors 20 mounted on the track inspection trolley 10, where the two detectors 20 are respectively disposed at two ends of the track inspection trolley 10 and are respectively used for detecting two side rails, specifically:

the rail inspection trolley 10 comprises a beam body 11 and a plurality of wheel sets 12 which are arranged on the beam body 11 and used for realizing the rail inspection instrument to travel on the rail. The beam body 11 comprises a cross beam 111 and a longitudinal arm 112 which are connected in a T shape, namely the rail inspection trolley 10 in the embodiment adopts a T-shaped beam. The end of the beam 111 remote from the trailing arm 112 is provided with a probe 20, and the end of the trailing arm 112 is provided with a probe 20. The two detectors 20 are located on the same side or both sides of the central axis of the cross beam 111, that is, the detectors 20 are located on the same side or both sides of the cross beam 111, and when the detectors are located on the same side, the other side can leave enough space for an operator to push the rail inspection trolley 10 to walk on the rail. In addition, both ends of crossbeam 111 and the both ends of trailing arm 112 all can set up a wheelset 12 for crossbeam 111 both ends all are provided with wheelset 12, and when the dolly 10 is examined to the rail erects on the track, the wheelset 12 at crossbeam 111 both ends respectively with both sides rail contact, thereby realize that the track patrols and examines the appearance and walk on the track.

Specifically, as shown in fig. 1 to 3, the wheel set 12 includes a traveling wheel 121 that rolls on the top surface of the rail and a tensioning wheel 122 that rolls on the inner side surface of the rail, and the rail inspection trolley 10 can travel on the rail due to the traveling wheel 121 that rolls on the top surface of the rail at both ends of the cross beam 111, and the tensioning wheel 122 that tensions the inner side surface of the rail at both ends of the cross beam 111, so as to ensure the posture of the rail inspection trolley 10. In addition, the wheel set 12 further includes a mileage sensor (not shown) for detecting the road wheels 121, and specifically, the mileage sensor can measure the traveling mileage of the road wheels 121 by detecting the number of rotation turns of the road wheels 121, so as to obtain the traveling mileage of the rail patrol instrument on the rail.

As shown in fig. 1, 4 and 5, the detector 20 includes a housing 21 fixed on the rail inspection trolley 10, a transparent component 22 embedded in the bottom of the housing 21, and at least one camera 23 disposed in the housing 21, where the camera 23 shoots the rail and/or the fastener through the transparent component 22, and specifically, the housing 21 is fixed on the rail inspection trolley 10 through a bracket 30. As shown in fig. 2, in the embodiment, the number of the cameras 23 is three, one of the cameras 23 is disposed right opposite to the top surface of the steel rail to shoot the steel rail, the other two cameras 23 are symmetrically disposed on two sides of the steel rail and right opposite to the fasteners of the steel rail to shoot the fasteners on two sides of the steel rail, wherein the housing 21 is arc-shaped, the camera 23 right opposite to the top surface of the steel rail is disposed at the center of the housing 21, and an included angle between the camera 23 right opposite to the top surface of the steel rail and the camera 23 right opposite to the fasteners is 30 °. In other embodiments, the number of the cameras 23 may be one, that is, only one camera 23 is provided, and the one camera 23 may be used for shooting the rail or the fastener; alternatively, the number of cameras 23 may also be two, i.e. only two cameras 23 are provided, which two cameras 23 may be used to photograph the rail and the side clip or to photograph the side clips. In an implementation, the camera 23 may be an industrial camera 23, and the light-transmitting element 22 may be a transparent material (such as transparent glass, transparent plastic, etc.) or a semitransparent material (such as ground glass, etc.).

In addition, the detector 20 further includes at least one light source 24, the number of the light sources 24 corresponds to the number of the cameras 23, and each camera 23 is configured with one light source 24, the light source 24 is used for providing a photographing environment for the camera 23, and preferably, the light sources 24 and the cameras 23 are arranged on the same straight line. In the present embodiment, the light sources 24 of the three cameras 23 form a continuous light path perpendicular to the steel rail, that is, when the detector 20 is turned on, there is a continuous light path perpendicular to the steel rail under the detector 20 to fully illuminate the shooting position of the cameras 23. The detector 20 further includes a heat dissipation fan 25, and a heat dissipation fan 25 is disposed between two adjacent cameras 23 to dissipate heat of the cameras 23 and the light source 24 by using the heat dissipation fan 25.

It should be noted that, because the embodiment is configured with the mileage sensor, the mileage of the track inspection instrument during the running on the track can be obtained, the detector 20 can shoot the rail and the fasteners during the running of the track inspection instrument on the track, and then the image shot by the detector 20 can be analyzed to determine whether the track has defects such as cracks on the top surface of the rail, peeling and chipping of the top surface or end portion of the rail, loss of the fasteners, deflection or fracture, and the like. Under the condition that the mileage sensor is not arranged, the approximate position of the defect can be pushed according to the shooting time, the starting measuring time and the walking speed of the track inspection instrument corresponding to the picture of the defect.

In addition, in some alternative embodiments, the image captured by the detector 20 may be checked manually or automatically based on image matching, which is implemented as follows: the method comprises the steps that firstly, a detector 20 shoots a defect-free steel rail and a fastener to obtain a defect-free standard steel rail picture and a defect-free standard fastener picture, the subsequent steel rail picture and the fastener picture shot by the detector 20 are respectively matched with the standard steel rail picture and the standard fastener picture in an image mode, if the matching rate is lower than a threshold value, it is judged that the current frame is defective, and the specific position of the rail defect can be determined through the shooting time of the current frame and the mileage measured by a mileage sensor.

Therefore, in some optional embodiments, the track patrol instrument may further include a controller 40, the controller 40 is disposed on the beam 11, each of the cameras 23 is electrically connected to the controller 40 through a network cable, so as to transmit the respective photographed images to the controller 40, the controller 40 is electrically connected to an upper computer (not shown in the drawings, and specifically may be a computer) through a network cable, so as to upload the images photographed by the cameras 23 to the upper computer, in addition, the mileage sensor is also electrically connected to the controller 40 through a network cable, and the controller 40 further uploads the measured mileage data to the upper computer, so that the upper computer can identify the specific position of the track defect by using the image matching method. Wherein the network cable can be routed through the inside of the beam 11 (hollow structure). Or in other embodiments, wireless communication (e.g., bluetooth, video, infrared, etc.) may be used to connect the host computer, the camera 23, and the controller 40.

In summary, in the track inspection instrument in this embodiment, the detector 20 is erected on the rail inspection trolley 10, when the rail inspection trolley 10 travels on the rail, the camera 23 of the detector 20 shoots the rail and/or the fastener to collect the picture of the rail and/or the fastener, and the collected picture can be transmitted to the upper computer processing software through the controller 40, so that it is only necessary to analyze the picture of the rail and the fastener subsequently to detect whether the rail has cracks on the top surface of the rail, the top surface or the end of the rail peels off and falls off, the fastener is lost, skews or fractures, and it is not necessary to distribute multiple persons to perform segmented inspection, thereby improving the efficiency of rail inspection and greatly reducing the labor intensity.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a track inspection appearance, its characterized in that, includes the rail and examines the dolly and carry on two detectors on the dolly are examined to the rail, two detectors are established respectively the both ends of dolly are examined to the rail are used for surveying the rail of both sides respectively, the detector is including being fixed in casing on the dolly is examined to the rail, inlay and locate the printing opacity component of casing bottom and set up in at least one camera in the casing, the camera sees through printing opacity component shoots rail and/or fastener.

2. The rail inspection apparatus of claim 1 wherein the detector further comprises at least one light source, one light source being associated with each of the cameras.

3. The track patrol instrument according to claim 2, wherein the number of the cameras is three, one of the cameras is arranged right opposite to the top surface of the steel rail so as to shoot the steel rail, and the other two cameras are symmetrically arranged on two sides of the steel rail and right opposite to the fasteners of the steel rail so as to shoot the fasteners on two sides of the steel rail.

4. The rail patrol instrument according to claim 3, wherein the light sources of the three cameras form a continuous light path perpendicular to the steel rail.

5. The track patrol instrument according to claim 3, wherein the angle between the camera disposed opposite the top surface of the rail and the camera disposed opposite the fastener is 30 °.

6. The track patrol instrument according to claim 5, wherein the housing is arc-shaped, and the camera disposed opposite the top surface of the rail is disposed at a central position of the housing.

7. The rail patrol instrument according to claim 1, wherein the detector further comprises a heat radiation fan, and one heat radiation fan is arranged between two adjacent cameras.

8. The rail inspection trolley according to claim 1, wherein the rail inspection trolley comprises a beam body, the beam body comprises a cross beam and a longitudinal arm which are connected in a T shape, one end of the cross beam, which is far away from the longitudinal arm, is provided with the detector, and one end of the longitudinal arm is provided with the detector.

9. The rail patrol instrument of claim 8, wherein two of said detectors are located on the same side or on both sides of the central axis of said cross beam.

10. The rail inspection trolley according to claim 8, further comprising a plurality of wheel sets arranged on the beam body for enabling the rail inspection trolley to travel on the rail, wherein the wheel sets comprise traveling wheels for traveling on the top surface of the steel rail and mileage sensors for detecting the traveling wheels.