CN219029429U - Quick detection structure and track inspection train of unballasted track board void - Google Patents

Abstract

The utility model relates to a quick detection structure for ballastless track slab void and a track inspection train, which comprises measuring equipment and a hardware structure and is characterized in that: the hardware structure comprises a rigid cross beam, an anti-rolling damping base and a rail detection train hanging frame, wherein the rail detection train hanging frame is arranged at the bottom of a rail detection train, the rigid cross beam is arranged on the rail detection train hanging frame through the anti-rolling damping base, and the measuring equipment is arranged on the hardware structure; the side support is connected with a side damping connecting plate with a sliding block through damping rubber, and the base plate is connected with a bottom edge damping connecting plate through bottom edge damping rubber. The scheme has compact structure and can meet the requirement of track detection.

Description

Quick detection structure and track inspection train of unballasted track board void

Technical Field

The utility model relates to the field of track monitoring, in particular to a rapid detection structure for the void of a ballastless track plate and a track inspection train.

Background

Compared with a ballasted track, the ballastless track of the high-speed railway has the advantages of good smoothness, high stability, strong maintainability and the like, and is widely applied to the high-speed railway dry line in China. However, with the increase of the service time of the ballastless track, the defect of the unbuckling and leaving of the ballastless track is frequently generated under the combined influence of dynamic load impact and other natural environment factors during the running of the train, wherein the unbuckling of the CA mortar layer is one of the main reasons for inducing the defect. The CA mortar layer plays a role in bonding the track slab and the supporting layer, once the track slab is in a large-area void, the track smoothness, rigidity and comfortableness can be reduced, under severe conditions, the track slab can be arched, the derailment of a train can be caused, and the running safety of high-speed rails can be seriously endangered.

The existing method for directly detecting the void of the ballastless track plate is mainly divided into: thermal infrared imaging; geological radar detection method based on electromagnetic waves; detection methods based on elastic waves and detection methods based on ultrasonic waves. Based on far infrared imaging detection methods, discontinuity of thermal conductivity of materials is mainly detected, and the presence or absence of void is inferred by imaging the temperature of the structure surface by utilizing temperature changes caused by insolation. In the existing detection structure and method, although related researches exist, for example, a dynamic detection method for gap separation between ballastless track layers of a high-speed railway (patent number: 201811434228.6) proposes that the laser Doppler vibrometer is used for measuring the abnormal sinking speed of the area where the wheels of a train are positioned, so that the rapid detection of the gap separation of a track plate can be realized, and meanwhile, a laser gyroscope and a mileage encoder are integrated, so that the pitch angle speed generated by the train operation and the recording speed and position of the train operation can be eliminated. However, the method only analyzes the possibility of implementation from the principle level, the space of the wheel set of the rail detection train is very narrow, the problem of sensor integration and installation is faced in the specific implementation process, and the problem of how to ensure that each sensor is required to realize normal measurement and meet the requirements of rail detection train limit is solved, and meanwhile, the high-precision measurement of measurement data is realized.

Disclosure of Invention

The utility model designs a ballastless track slab void rapid detection structure of a track inspection train, and establishes a set of practically applicable high-speed railway ballastless track slab void rapid detection system.

The utility model relates to a ballastless track plate void rapid detection structure of a track inspection train, which comprises measuring equipment and a hardware structure and is characterized in that: the hardware structure comprises a rigid cross beam, an anti-rolling damping base and a rail detection train hanging frame, wherein the rail detection train hanging frame is arranged at the bottom of a rail detection train, the rigid cross beam is arranged on the rail detection train hanging frame through the anti-rolling damping base, and the measuring equipment is arranged on the hardware structure; the side support is connected with a side damping connecting plate with a sliding block through damping rubber, and the base plate is connected with a bottom edge damping connecting plate through bottom edge damping rubber.

Further, the measuring device comprises a laser gyroscope, a laser Doppler vibrometer and a rotary encoder; the laser gyroscope is arranged at the center of the rigid beam, the laser Doppler vibration meter is arranged at two ends of the rigid beam, and the rotary encoder is arranged at the center of the train wheel pair.

Preferably, the laser Doppler vibration meter closest to the center of the wheel set of the rail detection train is located at a distance of 1600-3000mm from the center of the wheel set.

Further, the rigid beam has a length by width by height dimension 2145 by 190 by 410mm.

Further, two side support plates are arranged side by side, and a plurality of sliding blocks are arranged on each side support plate.

Preferably, 3 rows of sliding blocks are arranged on the side support plates, and 2 sliding blocks are arranged in parallel in each row.

Further, the rail inspection vehicle hanging frame is arranged below the rail inspection vehicle side beam.

Further, the rigid cross beam exceeds the train boundary by less than 50mm.

Further, the rail inspection train stores pylon is provided with 1 pair. Preferably, the centers of the two rail inspection train hanging frames are 1000mm apart.

Based on the same inventive concept, the utility model also designs a track inspection train, which comprises a track inspection train body, and is characterized in that: the ballastless track plate void rapid detection structure is arranged on the track detection vehicle body.

The utility model has the advantages that:

the track slab void rapid detection structure for the professional track detection train is integrated, has high integration level, can be rapidly disassembled and assembled, and does not exceed the maximum limit of the train. The rigid cross beam can be slid according to detection requirements of different positions, the relative position of the rigid cross beam and the anti-roll damping base is changed, the whole structure is compact, and the rail inspection train has good expansibility and adaptability to rail inspection trains of different models. And the method is highly automatic, and realizes the rapid detection capability of the rail detection train.

Drawings

FIG. 1 is a schematic diagram of a hardware architecture of the present utility model;

FIG. 2 is a schematic view of an anti-roll damper base;

FIG. 3 is a schematic view of the base plate structure of the anti-roll damper base;

FIG. 4 is a schematic view of a side support plate structure of an anti-roll shock mount;

FIG. 5 is a schematic diagram of the installation of a test beam on an on-track test train in accordance with an embodiment of the present utility model;

in the figure: rigid beam 1, anti-roll damping base 2 (slider 2.1, side damping rubber 2.2, side damping connecting plate 2.3, side support plate 2.4, right angle connecting piece 2.5, base plate 2.6, base damping connecting plate 2.7, base damping rubber 2.8), rail inspection train stores pylon 3, laser gyroscope 4, laser Doppler vibrometer 5, rotary encoder 6, data synchronization acquisition module 7.

Detailed Description

The technical scheme of the utility model is further specifically described below through examples and with reference to the accompanying drawings. Examples:

the utility model relates to a ballastless track slab void rapid detection structure of a track inspection train, which comprises measuring equipment and a hardware structure, wherein the hardware structure comprises a rigid beam 1, an anti-roll damping base 2 and a track inspection train hanging frame 3, the track inspection train hanging frame 3 is arranged at the bottom of the track inspection train, the rigid beam 1 is arranged on the track inspection train hanging frame 3 through the anti-roll damping base 2, and the measuring equipment is arranged on the hardware structure; the measuring equipment comprises a laser gyroscope 4, a laser Doppler vibration meter 5 and a rotary encoder 6; the laser gyroscope 4 is arranged at the center of the rigid beam 1, the laser Doppler vibration meters 5 are arranged at two ends of the rigid beam 1, and the rotary encoders 6 are arranged at the center of the train wheel pairs.

The anti-roll damping base 2 comprises a sliding block 2.1, side damping rubber 2.2, side damping connecting plates 2.3, side supporting plates 2.4, right-angle connecting pieces 2.5, a base plate 2.6, a bottom side damping connecting plate 2.7 and bottom side damping rubber 2.8. The sliding blocks 2.1 can be embedded into sliding grooves which are matched with the rigid cross beam, so that the rigid cross beam can conveniently move transversely. The sliding block is connected with the side damping connecting plate 2.3 through bolts; the side damping connection plate 2.3 is connected with the middle of the side support plate 2.4 through side damping rubber 2.2, and 6 sliding blocks are mounted on each side damping plate 2.3, wherein the main function of the side damping rubber 2.2 is to absorb impact and vibration in the left-right direction generated by the rigid cross beam. The right-angle connecting piece 2.5 connects and fixes the side support plate 2.4 and the base plate 2.6, and ensures that the two form an included angle of 90 degrees. The bottom edge shock-absorbing connecting plate 2.7 is connected with the bottom edge shock-absorbing connecting plate 2.7 through four bottom edge shock-absorbing rubbers 2.8, and the bottom edge shock-absorbing connecting plate 2.7 is fixed through bolts, wherein the bottom edge shock-absorbing rubbers 2.8 mainly absorb the impact and vibration in the vertical direction generated by the rigid beam 1. Through the arrangement of the structure, the impact vibration of the rigid cross beam in the left-right direction and the up-down direction generated in the moving process can be well eliminated and counteracted, and the measurement stability is ensured. The anti-roll damping base 2 is connected with a rail inspection train hanger 3 through bolts.

The distance between the center positions of the two anti-roll damping bases is 1000mm, and the distance between the two anti-roll damping bases and the two ends of the rigid beam is 500mm respectively; the two rail inspection train hangers are respectively welded on the bottom surface of the train, the welding positions are corresponding to the welding positions of the anti-rolling damping base, the centers of the two rail inspection train hangers are equally spaced by 1000mm, the anti-rolling damping base is arranged on the rail inspection train hanger, the rigid cross beam is connected with the rail inspection train hanger, the relative positions of the rigid cross beam and the damping base can be adjusted according to the movement of different train models, and the relative positions which are given at present are the best installation positions.

Preferably, when the system is installed, the distance between the left-most vibration meter and the center of the wheel set is 1600mm at 2500 mm; when the vibration measuring device is furthest, the distance between the left-most vibration measuring device and the center of the wheel set is 3000mm. The installation and fixation positions can be adjusted according to the needs in actual use within the range of 1600-3000 mm.

The utility model relates to a ballastless track plate void rapid detection structure of a track inspection train, which is applied to the following specific applications: step one: connecting an optical head of the vibration meter, a laser gyroscope and a data synchronous control acquisition module according to design requirements; after the wiring of the sensor is finished, the assembly of each mechanical structure is completed, wherein the rotary encoder is arranged at the center of the axle end of the rail detection train axle, and the description is omitted here.

Step two: after wiring and installation of each sensor are completed, synchronous debugging of the sensors is carried out.

Step three: the width of the rail inspection train is usually about 3300mm, the distance limit value is 50-100mm, so that the inspection beam can be installed on the side face of the train and can only be installed near a suspension of the bottom face of the side beam of the train 16, the residual space is very narrow, the length, the width and the height=3000 mm, 200mm and 500mm, and the inspection beam and the train suspension system need to be kept at a certain distance, so that the overall structure of the inspection beam needs to be designed very compactly, and the volume needs to be reduced to the greatest extent on the premise of guaranteeing the measurement requirement and the strength. The overall size of the ballastless track slab void rapid detection structure based on the track detection train meets the installation requirement of a narrow space near a track detection train suspension, so that the design size of the rigid cross beam is long x wide x high = 2145mm x 190mm x 410mm. The rail inspection vehicle hanging frame is arranged below the rail inspection vehicle side beam, and because the rail inspection vehicle is bilaterally symmetrical, the installation of the inspection cross beam is described by taking one side of the train, and the widest part of the inspection cross beam exceeds the boundary of the train by 40mm and is smaller than the limit value of the train by 50mm. Therefore, structural design of the ballastless track slab void rapid detection system based on the track detection train is completed, and the installation of the sensor data synchronous acquisition module 7 and the rigid cross beam on the track detection train can be used for track detection operation.

Based on the same inventive concept, the utility model also designs a track inspection train which comprises a track inspection train body, wherein the track inspection train body is provided with the rapid detection structure for the void of the ballastless track plate.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Claims (10)

1. The utility model provides a quick detection structure of ballastless track board void, includes measuring equipment and hardware structure, its characterized in that: the hardware structure comprises a rigid cross beam, an anti-rolling damping base and a rail detection train hanging frame, wherein the rail detection train hanging frame is arranged at the bottom of a rail detection train, the rigid cross beam is arranged on the rail detection train hanging frame through the anti-rolling damping base, and the measuring equipment is arranged on the hardware structure; the side support is connected with a side damping connecting plate with a sliding block through damping rubber, and the base plate is connected with a bottom edge damping connecting plate through bottom edge damping rubber.

2. The ballastless track slab void rapid detection structure of claim 1, wherein: the measuring equipment comprises a laser gyroscope, a laser Doppler vibration meter and a rotary encoder; the laser gyroscope is arranged at the center of the rigid beam, the laser Doppler vibration meter is arranged at two ends of the rigid beam, and the rotary encoder is arranged at the center of the train wheel pair.

3. The ballastless track slab void rapid detection structure of claim 2, wherein: the distance between the laser Doppler vibration meter closest to the center of the wheel pair of the rail detection train and the center of the wheel pair is 1600-3000 mm.

4. The ballastless track slab void rapid detection structure of claim 1, wherein: the side support plates are arranged in parallel, and a plurality of sliding blocks are arranged on each side support plate.

5. The ballastless track slab void rapid detection structure of claim 4, wherein: and 3 rows of sliding blocks are arranged on the side support plates, and 2 sliding blocks are arranged in parallel in each row.

6. The ballastless track slab void rapid detection structure of claim 1, wherein: the rail inspection train hanging frame is arranged below the rail inspection train boundary beam.

7. The ballastless track slab void rapid detection structure of claim 1, wherein: the rigid cross beam exceeds the train boundary by less than 50mm.

8. The ballastless track slab void rapid detection structure of claim 1, wherein:

the rail inspection train stores pylon is provided with 1 pair, two rail inspection train stores pylon centers are 1000mm apart.

9. The ballastless track slab void rapid detection structure of claim 4, wherein:

and the rigid cross beam is provided with a sliding groove which is matched with the sliding block and is transversely arranged.

10. The utility model provides a train is patrolled and examined to track, includes track detection car body, its characterized in that: the ballastless track slab void rapid detection structure of any one of claims 1 to 9 is arranged on the track detection vehicle body.

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