CN211685127U

CN211685127U - Rail surface damage detection device

Info

Publication number: CN211685127U
Application number: CN201922215649.6U
Authority: CN
Inventors: 司道林; 王树国; 杨东升; 王猛; 葛晶; 王璞; 钱坤; 赵振华; 杨亮; 许良善
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Railway Engineering Research Institute of CARS; China State Railway Group Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Railway Engineering Research Institute of CARS; China State Railway Group Co Ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-10-16
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses a rail surface damage detection device, including box casing, check out test set, display device, collection equipment, power supply unit and walking the line subassembly, the bottom of box casing is seted up flutedly along length direction, and at least two sets of walking the line subassembly of installation in the recess, display device, collection equipment, check out test set and power supply unit set up respectively inside box casing, display device and check out test set and collection equipment signal connection, and display device and collection equipment are connected with the power supply unit electricity. The utility model integrates the detection device, the acquisition device, the power supply device, the display device and the walking assembly into a box structure, and has the effects of rain prevention and collision prevention; the rail head light band crack detector has the advantages that the whole device is supported and travels along a steel rail through the traveling assembly, the structure is small and compact, carrying and carrying are convenient, comprehensive detection of a small number of people under hands on a rail head light band position crack multi-occurrence area can be realized, the flexibility and usability of the device are good, the utilization rate is high, and the practicability is high.

Description

Rail surface damage detection device

Technical Field

The utility model relates to a track maintenance field especially relates to a rail surface damage detection device.

Background

Rails for railway and urban rail traffic are the main components for supporting and guiding the movement of wheels. Because the steel rail material is hard and the wheel rail is frequently contacted, rolling contact fatigue cracks often appear on the surface of the steel rail, and the surface material can be peeled off and fall off, even the rail is broken when the rolling contact fatigue cracks are serious, so that the driving safety is influenced. The periodic detection is carried out on the surface of the in-service steel rail on the line to find the crack initiation and propagation conditions, and the method is an important work for carrying out targeted polishing, eliminating and controlling the steel rail cracks.

At present, the commonly used steel rail crack detection device comprises three types, namely a manual handheld type steel rail crack detection device, a manual cart type steel rail crack detection device and a power vehicle type steel rail crack detection device. The manual handheld steel rail surface damage detection device has the advantages that the manual handheld steel rail surface damage detection device is small in size and limited in the number of portable probes, cannot completely cover an optical band area rolled by wheels on a rail head, cannot continuously measure the surface of a steel rail along the direction of a train, and can only be used for measuring cracks of discrete points on the surface of the steel rail; although the manual cart type steel rail surface damage detection device can realize continuous measurement of the steel rail surface along the train direction, the device has the advantages of large volume, inconvenience in carrying, more hands for carrying and lifting the line, incapability of measuring in rainy days due to precise instruments and strong limitation; when the vehicle-mounted steel rail surface damage detection device of the power vehicle is used, the device not only needs to be installed on a train operated conventionally or a special detection train, but also needs to be arranged for operation planning, the utilization rate of the detection equipment is not high, and the device is not as flexible as a manual mode. In addition, although the detection trolley driven by people appears at present, the detection trolley also has the problems of needing more manual lifting trolleys, needing longer line occupation time and the like, and has poor practicability.

Disclosure of Invention

The utility model aims at providing a rail surface damage detection device can realize pushing away the limit and detecting surperficial crack data on the rail, reaches portable and short-term test's purpose.

In order to achieve the above object, the utility model provides a following scheme:

the utility model provides a rail surface damage detection device, including box casing, check out test set, display device, collection equipment, power supply unit and walking subassembly, the bottom of box casing has seted up the recess along length direction, when box casing strides over the rail, the railhead of rail is located in the recess, install at least two sets of in the recess walk the subassembly, walk the subassembly and be used for driving box casing and remove on the rail; the display device, the collection equipment detection equipment with power supply unit sets up respectively inside the box casing, just detection equipment's detection site stretches out to in the recess, display device with detection equipment all with collection equipment signal connection, display device with collection equipment all with the power supply unit electricity is connected.

The real-time detection of the turnout is realized by the cooperation of the detection equipment, the display equipment and the acquisition equipment, the preparation time of maintenance personnel, the time for getting on and off the turnout and the return time are reduced, the inspection efficiency is improved, the turnout is not influenced by human factors and time, the precision is higher, and the real-time performance is better.

Optionally, the walking assembly comprises a vertical walking roller for walking along the top surface of the steel rail and a lateral walking roller for walking along two sides of the rail head of the steel rail; the vertical walking roller is arranged on the top surface of the groove, the lateral walking rollers are respectively arranged on two side walls of the groove, and the axis of the vertical walking roller is orthogonal to the axis of the lateral walking rollers.

The walking wheels are positioned in three directions, the stability is high, and meanwhile, the multiple guides 3 are matched with the guide surfaces of the turnout beams, so that the straddle type walking vehicle provides steering force at a turning position, and the trolley is prevented from derailing.

Optionally, each lateral walking roller is provided with a transverse spring limiting device; and at least one group of the walking components are respectively arranged at the two ends of the groove.

Optionally, a skylight is arranged in the front of the top surface of the box-type shell, the display device is embedded in the skylight, a sliding cover plate is mounted on the display device, and the display device is a tablet personal computer display.

Optionally, a modular storage bin is arranged at the rear part of the box-type shell, and the acquisition equipment and the power supply equipment are installed in the modular storage bin.

Optionally, the detection device is a probe type sensor, the probe type sensor is composed of an eddy current probe array or a plurality of eddy current single probes, and the probe type sensor is distributed on the periphery of the rail head along the contour of the arc surface of the rail head.

The detection equipment can be used for acquiring the surface image of the turnout by using a high-speed CCD camera, processing the acquired image to extract an image characteristic vector, and detecting, identifying and classifying the surface defects of the turnout through a classifier according to the image characteristic vector.

The detection device can also be an infrared thermal imaging detection method, a heating source heats the turnout beam during inspection, the thermal infrared imager outputs image data to an image acquisition card after the surface temperature distribution of the turnout beam is received by the thermal infrared imager, the image acquisition card transmits the received image data to a microcomputer, and the microcomputer processes the received image data and transmits the processed result to a video recorder for storage and a display for display.

Optionally, the collecting device includes a signal collector and a circuit board electrically connected to the signal collector.

Optionally, the power supply device is a storage battery pack; the power supply equipment is connected with the acquisition equipment, the display equipment and the detection equipment through cables.

Optionally, the box-type shell is a rectangular box-type shell; and a handle for lifting is arranged on the outer side wall of the cuboid box type shell.

Optionally, the two steel rail surface damage detection devices are connected in parallel and can be used for simultaneously detecting the rail surfaces of two steel rails.

The utility model discloses for prior art gain following technological effect:

the utility model provides a rail surface damage detection device, which integrates detection equipment, acquisition equipment, power supply equipment, display equipment and a traveling assembly into a box structure, and has the effects of rain prevention and collision prevention; the supporting and the advancing along the steel rail of the whole equipment are realized through the walking assembly, the structure is small and compact, the carrying and the carrying are convenient, the manual use is reduced, the continuous measurement of the surface of the steel rail along the longitudinal direction (the running direction of a train) of the steel rail is realized, and the comprehensive detection of a small number of people on the multi-crack-occurrence area of the position of the optical band on the rail head is realized.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a rail surface flaw detection device of the present invention;

FIG. 2 is a schematic cross-sectional view of a rail surface flaw detector according to the present invention;

fig. 3 is a side view of a rail surface flaw detector of the present invention;

reference numerals:

1. a box-type housing; 2. a detection device; 3. a display device; 4. collecting equipment; 5. a power supply device; 6. A running assembly; 61. a vertical walking roller; 62. a lateral walking roller; 7. a groove; 8. a steel rail; 9. a skylight; 10. modular storage bins.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model aims at providing a can be at a rail surface flaw detection device that rail surface detected in succession, can realize pushing away on the rail limit and detect surperficial crack data, reach portable and short-term test's purpose.

The utility model provides a rail surface damage detection device, including box casing, check out test set, display device, collection equipment, power supply unit and walking subassembly, the bottom of box casing has seted up the recess along length direction, and when box casing strided over the rail, the railhead of rail was located the recess, and at least two sets of walking subassemblies are installed to the recess, walk the subassembly and be used for driving box casing and move on the rail; display device, collection equipment, check out test set and power supply unit set up inside box casing respectively, and check out test set's detection site stretches out to the recess in, display device and check out test set all with collection equipment signal connection, display device and collection equipment all are connected with the power supply unit electricity.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The first embodiment is as follows:

as shown in fig. 1 to 3, the embodiment provides a rail surface damage detection apparatus, which includes a box-type housing 1, a detection device 2, a display device 3, an acquisition device 4, a power supply device 5, and a traveling assembly 6, wherein a groove 7 is formed in the bottom of the box-type housing 1 along the length direction, the width of the groove 7 is greater than the width of the cross section of a rail 8, when the box-type housing 1 spans over the rail 8, the rail head of the rail 8 is located in the groove 7, at least two sets of traveling assemblies 6 are installed in the groove 7, and the traveling assemblies 6 are used for driving the box-type housing 1 to move on the rail 8; display device 3, collection equipment 4, check out test set 2 and power supply unit 5 set up respectively inside box casing 1, have seted up the U type on the recess 7 and have led to the groove, and check out test set 2's detection site runs through the U type leads to the groove and extends in the recess 7 to detect rail 8. Wherein, display device 3 and check out test set 2 all with collection equipment 4 signal connection, display device 3 and collection equipment 4 all are connected with power supply unit 5 electricity.

Further, as shown in fig. 2, in the present embodiment, the running assemblies 6 include a vertical running roller 61 for running along the top surface of the rail 8 and supporting, and a lateral running roller 62 for running along both side surfaces of the head of the rail 8 and supporting, preferably, each set of running assemblies 6 includes a vertical running roller 61 and two lateral running rollers 62, the vertical running roller 61 is installed on the top surface of the groove 7, one lateral running roller 62 is installed on each of both side walls of the groove 7, and preferably, the axis of the vertical running roller 61 is orthogonal to the axis of the lateral running roller 62, wherein the vertical running roller 61 is preferably vertically disposed.

Furthermore, at least one set of running assemblies 6 is respectively installed at two ends of the groove 7, in this embodiment, it is preferable that one set of running assemblies 6 is respectively installed at two ends of the groove 7, the two sets of running assemblies 6 are symmetrically arranged, and the detection device is located between the two sets of running assemblies 6. The vertical traveling rollers 61 can support the box-type shell 1 to advance along the longitudinal direction (train running direction) of the steel rail 8; all be provided with horizontal spring stop device on every side direction walking gyro wheel 62, use 8 rectangular directions of rail to be vertical, use the wheel to press the direction on rail 8 to be vertical, so, use 8 cross sections levels of rail to be horizontal, horizontal spring stop device should lean on the railhead, have horizontal limiting displacement, can lead according to sharp, curve rail, guarantee that check out test set 2 remains throughout in the light band scope of rail 8, be favorable to improving detection efficiency.

Further, as shown in fig. 1, a skylight 9 is arranged at the front part of the top surface of the box-type housing 1 in the embodiment, the display device 3 is embedded in the skylight 9, and a sliding cover plate is installed on the display device 3 and used for covering the display device 3 during storage of the box body and rain measurement so as to prevent influence on display during rain. In this embodiment, the display device 3 is preferably a tablet personal computer display, and is configured to perform parameter adjustment and display detection data during detection, and may directly click corresponding software to perform management operations such as acquisition, storage, data playback, and the like.

Further, as shown in fig. 1, a modular storage bin 10 is provided at the rear of the box-type housing 1 in the present embodiment, and the collection device 4 and the power supply device 5 are installed in the modular storage bin 10. The modular storage 10 also has the function of shielding the collection device 4 and the power supply device 5 from rain so as not to hinder the normal use of the collection device 4 and the power supply device 5 in rainy days.

Further, the detection device 2 is a probe type sensor, which may be composed of an eddy current probe array or a plurality of eddy current single probes. In this embodiment, the preferable probe type sensor is composed of a plurality of eddy current single probes, and the plurality of eddy current single probes are distributed on the periphery of the rail head along the arc profile of the rail head, that is, the eddy current single probes are arranged along the cross section of the rail head in a surrounding manner to cover the crack multi-occurrence area at the light band position rolled by the wheels on the rail head, so that the crack depth at each position of the top surface of the rail head is measured. The eddy current probe array and the eddy current single probe are existing sensors for detecting rail cracks in the field, and the specific structure and the crack detection principle of the eddy current probe array and the eddy current single probe are not described in detail herein.

Further, the acquisition device 4 in this embodiment includes a signal acquisition instrument and a circuit board electrically connected to the signal acquisition instrument, and is used for driving each probe in the detection device 2 and receiving and recording data from each probe in the detection device 2. Wherein, the detection device 2 is connected with the acquisition device 4 through a data line, the acquisition device 4 is an existing device, and the device further comprises a signal generator, a data storage hard disk and the like, and the specific data receiving principle and the data recording principle are not repeated herein.

Further, the power supply device 5 in the present embodiment is preferably a battery pack; the power supply device 5 can be connected with the acquisition device 4 and the display device 3 respectively in a conventional electrical connection manner through cables to supply power to the three.

Further, the box-type housing 1 in the present embodiment is preferably a rectangular parallelepiped box-type housing; the handle that is used for lifting the fortune is installed to the lateral wall of the box casing of cuboid, improve the holistic transport convenience of equipment and flexibility.

Furthermore, two steel rail surface damage detection devices can be connected in parallel, and can be used for simultaneously detecting two steel rail surfaces.

The following describes the specific operation principle of the embodiment by using a single device to detect cracks on the surface of a single-strand steel rail.

Firstly, placing a box-type shell 1 on a strand of steel rail 8, keeping a vertical walking roller 61 vertical to the top surface of the steel rail, and keeping lateral walking rollers 62 positioned at two sides of the rail head of the steel rail, and ensuring no traveling obstacle; then, opening a sliding cover plate on the display device 3, and simultaneously starting the power supply device 5 to supply power to the display device 3 and the acquisition device 4; then starting corresponding software in the display device 3, after corresponding acquisition parameters are set in the software, the acquisition device 4 starts to drive the detection device 2 to acquire data according to the set parameters, the acquisition device 4 can directly convert signals of the detection device 2 into crack depth data, and the data acquired by each probe in real time are displayed on the display device 3 and are simultaneously stored in a hard disk of the acquisition device 4; meanwhile, the box-type shell 1 is pushed along the steel rail 8 manually, the crack depth of the rail surface can be continuously measured by each sensor probe in the detection device 2, and data signals are stored by the acquisition device 4 and displayed in the display device 3. The data conversion function of the acquisition device 4 is the prior art, and is not described in detail.

During detection, if the data of the display device 3 is not needed to be seen, or during raining, the sliding cover type cover plate can be closed to cover the display device 3, so that the waterproof effect is facilitated. The sliding cover plate can be arranged in a transparent or non-transparent form.

In addition, a USB interface for inserting a flash disk or a mobile hard disk can be further provided on the acquisition device 4, so that the detected data can be copied conveniently, or the measured data can be directly stored in an external flash disk or a mobile hard disk during detection.

Therefore, the steel rail surface damage detection device provided by the utility model integrates the detection equipment, the acquisition equipment, the power supply equipment, the display equipment and the walking assembly into a box-type structure, and has the effects of rain prevention and collision prevention; the supporting of the whole equipment and the advancing along the steel rail are realized through the walking assembly, the walking and detection are integrated, the structure is small and compact, the carrying and the carrying are convenient, the manual use is reduced, the continuous measurement of the surface of the steel rail along the longitudinal direction (the running direction of a train) of the steel rail is realized, and the rapid comprehensive detection of a plurality of cracks of the optical band position on the rail head under a small number of hands is realized.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. A rail surface damage detection device which characterized in that: the steel rail walking device comprises a box type shell (1), a detection device (2), a display device (3), an acquisition device (4), a power supply device (5) and walking assemblies (6), wherein the detection device (2), the display device (3), the acquisition device (4) and the power supply device (5) are arranged inside the box type shell (1), a groove (7) is formed in the bottom of the box type shell (1) along the length direction, when the box type shell (1) spans over a steel rail (8), the rail head of the steel rail (8) is located in the groove (7), at least two groups of the walking assemblies (6) are arranged in the groove (7), and the walking assemblies (6) are used for driving the box type shell (1) to move on the steel rail (8); the detection position of the detection device (2) stretches out of the groove (7), the display device (3) and the detection device (2) are connected with the acquisition device (4) through signals, and the display device (3) and the acquisition device (4) are connected with the power supply device (5) electrically.

2. A rail surface flaw detection device according to claim 1, wherein: the walking assembly (6) comprises a vertical walking roller (61) and a lateral walking roller (62), wherein the vertical walking roller is used for walking along the top surface of the steel rail (8), and the lateral walking roller is used for walking along two sides of the rail head of the steel rail (8); the vertical walking rollers (61) are mounted on the top surfaces of the grooves (7), the lateral walking rollers (62) are mounted on two side walls of the grooves (7) respectively, and the axis of the vertical walking rollers (61) is orthogonal to the axis of the lateral walking rollers (62).

3. A rail surface flaw detection device according to claim 2, wherein: each lateral walking roller (62) is provided with a transverse spring limiting device; and at least one group of the walking components (6) are respectively arranged at two ends of the groove (7).

4. A rail surface flaw detection device according to claim 1, wherein: the top surface front portion of box casing (1) is equipped with skylight (9), display device (3) are embedded in inside skylight (9), install the sliding closure formula apron on display device (3), display device (3) are the panel computer display.

5. A rail surface flaw detection device according to claim 1, wherein: the rear part of the box-type shell (1) is provided with a modular storage bin (10), and the acquisition equipment (4) and the power supply equipment (5) are installed in the modular storage bin (10).

6. A rail surface flaw detection device according to claim 1, wherein: the detection device (2) is a probe type sensor which is composed of an eddy current probe array or a plurality of eddy current single probes and is distributed on the periphery of the rail head along the contour of the cambered surface of the rail head.

7. A rail surface flaw detection device according to claim 1, wherein: the acquisition equipment (4) comprises a signal acquisition instrument and a circuit board electrically connected with the signal acquisition instrument.

8. A rail surface flaw detection device according to claim 1, wherein: the power supply equipment (5) is a storage battery pack; the power supply equipment (5) is connected with the acquisition equipment (4) and the display equipment (3) through cables.

9. A rail surface flaw detection device according to claim 1, wherein: the box-type shell (1) is a cuboid box-type shell (1); the outer side wall of the cuboid box-type shell (1) is provided with a handle for lifting and transporting.

10. A rail surface flaw detection device according to claim 1, wherein: two rail surface damage detection device connects in parallel, can be used for detecting simultaneously to two strands of rail (8) rail faces.