CN211772476U

CN211772476U - Track slab gap detection vehicle capable of walking in two directions

Info

Publication number: CN211772476U
Application number: CN201922234659.4U
Authority: CN
Inventors: 赵国堂; 王森荣; 朱彬; 林超; 梅琴; 周磊
Original assignee: China Railway Siyuan Survey and Design Group Co Ltd
Current assignee: China Railway Siyuan Survey and Design Group Co Ltd
Priority date: 2019-12-13
Filing date: 2019-12-13
Publication date: 2020-10-27
Anticipated expiration: 2029-12-13

Abstract

The utility model relates to a track slab gap detection vehicle capable of walking in two directions, which comprises a vehicle body and a gap detection unit arranged on the vehicle body, wherein the vehicle body can walk in two directions on a track, for example, the vehicle body is provided with a driving motor capable of driving in positive and negative rotation; or the vehicle body is pushed manually to walk in two directions by installing a manual push handle on the vehicle body. The utility model provides a track board off-seam detects car, automobile body can be promoted and two-way walking by motor drive or manual work, can realize track board off-seam detects car both way detection's purpose, and work is more nimble, can effectively improve the operating efficiency and off-seam and detect the accuracy. Further, an obstacle avoidance driving mechanism can be arranged on the vehicle body, and obstacle measurement units are respectively arranged at the front end and the rear end of the separation detection unit, so that the vehicle body can well avoid obstacles such as lateral stop blocks and the like in the two-way walking process.

Description

Track slab gap detection vehicle capable of walking in two directions

Technical Field

The utility model belongs to the technical field of the railway track structure detects, concretely relates to track board separation joint detection car that can two-way walking.

Background

One of the main defect types of the slab ballastless track is interlayer gap of a track structure. The generation of the gap can influence the smoothness and the dynamic response of the track on the one hand, and in addition, the contact state and the longitudinal temperature force transmission characteristic between the track plate and the supporting layer (mortar layer) are also inevitably changed, and the stability of the track structure is influenced.

Because interlayer separation seams generally exist in the lines, and the separation seams have different heights. Under the existing conditions, railway maintenance workers must carry out on-site measurement, and can formulate a maintenance scheme after preliminarily mastering the distribution condition of the gap between the track structural layers on the line, thereby realizing effective management.

Because the high-speed railway is operated in a totally-closed manner in daytime, the check of the interlayer separation seams of the track structure mainly depends on manual unfolding of a maintenance skylight at night, and a main tool for measuring the interlayer separation seams of the track structure is a feeler gauge. This way of checking has the following drawbacks: (1) visual conditions are poor at night, and the rail structure gap inspection is difficult to refine; (2) the manual detection is strong in subjectivity, and the detection efficiency is low due to the fact that the circuit detection is large in robustness; (3) in long-distance operation, the reliability of manually recording the line mileage corresponding to the gap and the track slab number is not high, and the omission and the mistake recording are inevitable. Therefore, automatic detection equipment for the rail plate gap needs to be developed.

At present, some automatic detection researches on the gap of the track slab are in a test stage, and the track slab gap detection vehicle is designed to move in a single direction, and when gap detection data is missing or abnormal in some places, the track slab gap detection vehicle is difficult to return to the place for supplementary detection, so that the gap detection accuracy is influenced, and the operation efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a but track board seam detection car of two-way walking can solve prior art's part defect at least.

The embodiment of the utility model relates to a track slab gap detection vehicle capable of walking in two directions, which comprises a vehicle body and a gap detection unit arranged on the vehicle body,

the vehicle body is provided with a vehicle body driving motor capable of driving the vehicle body to rotate forwards and backwards;

or a manual push handle is arranged on the vehicle body, the manual push handle comprises a handle frame arranged on the vehicle body and a handle arranged on the handle frame, the axial direction of the handle frame is vertical, and the axial direction of the handle is parallel to the axial direction of a wheel axle of the vehicle body;

or two handle frames are arranged on the vehicle body, the two handle frames are respectively arranged on two sides of the vehicle body along the traveling direction of the vehicle body, the bottom end of each handle frame is connected with the vehicle body and extends upwards in an inclined manner towards the direction far away from the vehicle body, and the top end of each handle frame is connected with a handle, or one handle frame is detachably assembled with one handle.

As one embodiment, the vehicle body is provided with an obstacle avoidance driving mechanism, and the gap detection unit is connected with the obstacle avoidance driving mechanism so as to have a detection position horizontally opposite to the junction of the track plate and the supporting layer and an avoidance position avoiding obstacles on the traveling path of the track plate and the supporting layer.

As one embodiment, the obstacle avoidance driving mechanism includes a lifting driving unit installed on the vehicle body, and the gap detection unit is connected with an output end of the lifting driving unit through a mounting bracket.

As one embodiment, the track slab separation detecting vehicle capable of walking in two directions further comprises an obstacle detecting unit for detecting an obstacle on a traveling path of the separation detecting unit;

the gap detection unit comprises a detection box and gap detection devices arranged on the detection box, the gap detection devices are located at one side of the detection box, which faces the vehicle body, and the barrier detection units are provided with two groups and are arranged at the front end and the rear end of the detection box respectively along the traveling direction of the vehicle body.

As one embodiment, the barrier measuring unit includes a barrier measuring sensor.

As one embodiment, the two-way walking track slab gap detection vehicle also comprises a display for displaying gap detection information,

when the handle frame is vertical in the axial direction, the display is arranged at the top of the handle frame, and the display can rotate relative to the handle frame or the handle frame can rotate relative to the vehicle body;

when the handle frame is obliquely arranged on the vehicle body, the display is arranged on the vehicle body through the display bracket, and the display can rotate relative to the display bracket or the display bracket can rotate relative to the vehicle body.

As one of the embodiments, the display may be a touch screen display.

As an embodiment, the two-way walking track slab separation detection vehicle further comprises a computer, and the computer and the display are integrated into a whole.

As an embodiment, the track slab separation detecting vehicle capable of walking in two directions further comprises a speed detecting unit for acquiring the moving speed of the vehicle body.

As one embodiment, the bottom of the frame of the vehicle body is provided with a serial number photographing camera for collecting serial numbers of the track slabs to be detected.

The embodiment of the utility model provides a following beneficial effect has at least:

the utility model provides a track board from seam detects car, the automobile body can be promoted and two-way walking by motor drive or manual work, can realize track board from seam detects car two-way detection's purpose, and work is more nimble, can effectively improve operating efficiency and from seam detection accuracy, for example can detect the from seam condition of a certain track board reciprocally, improves and detects the rate of accuracy, for example can be when certain department from seam detection data disappearance or unusual, return to this department and carry out the replenishment detection.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the drawings without creative efforts.

Fig. 1 is a schematic structural view of a track slab gap detection vehicle according to an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is a schematic view of a gap detection unit according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention are described below clearly and completely, 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 efforts belong to the protection scope of the present invention.

As shown in fig. 1, the embodiment of the utility model provides a but two-way walking track board crack detection car, include automobile body 100 and install in crack detection unit 200 on the automobile body 100, wherein, above-mentioned automobile body 100 can two-way walk on the track, and concrete accessible is realized by following scheme:

(1) the vehicle body 100 is provided with a vehicle body driving motor capable of driving in forward and reverse rotation; the bidirectional walking of the vehicle body driven by the motor is a conventional technology, and is not described in detail herein.

(2) As shown in fig. 1, a manual push handle 400 is provided on a vehicle body 100, the manual push handle 400 includes a handle frame 402 mounted on the vehicle body 100 and a handle 401 mounted on the handle frame 402, the handle frame is vertical in the axial direction, and the handle is parallel to the wheel axle axial direction of the vehicle body 100.

(3) The vehicle body 100 is provided with two handle frames which are respectively arranged at two sides of the vehicle body 100 along the walking direction of the vehicle body 100, the bottom end of each handle frame is connected with the vehicle body 100 and extends upwards in an inclined way towards the direction far away from the vehicle body 100, one handle is detachably assembled on one handle frame, or the top end of each handle frame is connected with one handle.

Obviously, the above-mentioned (2) th and (3) th solutions are detection vehicles that travel on a track by manual pushing. In this embodiment, it is preferable that the vehicle body 100 is manually pushed to travel on the rail, so that the travel speed of the vehicle body 100 is conveniently controlled, and the rail plate gap condition is more accurately measured. Wherein, the scheme (2) has simple structure, less components, convenient transportation and installation and better application effect.

The handle 401 is preferably adapted to be held by an operator and typically includes two handles.

In addition, the height of the handle frame 402 is preferably adjustable to accommodate operators of different heights.

Further preferably, as shown in fig. 1, the track slab separation detecting vehicle is further provided with a display 500, and information such as real-time measurement results can be synchronously displayed through the display 500; the display 500 is further preferably a touch screen display 500 to facilitate human interaction.

The track slab separation detection vehicle is further provided with a central control unit, the central control unit is preferably a computer, the central control unit and the display 500 are preferably combined into an integrated machine, the measurement data and the result can be directly downloaded locally in the computer, and the computer can also send the measurement data to a cloud server for backup through a network. The display 500/computer may be mounted on the vehicle body 100 through a display bracket, and is suitable for the worker, and this case applies to the above-mentioned (1) and (3). The display 500 may be configured to rotate relative to the display stand or the display stand may be configured to rotate relative to the body of the vehicle to facilitate human-computer interaction with the display 500 by an operator, as desired for a bi-directional cart.

In a more preferable embodiment, the track slab separation detecting vehicle adopts the above-mentioned two-way walking scheme (2), and the display 500 is installed on the top of the handle frame 402, so that the structure is simplified, and an operator can conveniently control the movement of the vehicle body 100 according to the measurement data and results displayed by the display 500 in real time. Likewise, the display 500 may be rotatable with respect to the handle frame or the handle frame may be rotatable with respect to the vehicle body.

The structure of the detection vehicle is further optimized, as shown in fig. 1, an obstacle avoidance driving mechanism is arranged on the vehicle body 100, and the gap detection unit 200 is connected with the obstacle avoidance driving mechanism, so that a detection position horizontally aligned with the junction of the track slab and the supporting layer and an avoidance position avoiding obstacles on the traveling path of the track slab are provided.

The vehicle body 100 can travel on a rail, and the separation detecting unit 200 is mounted on the vehicle body 100 so as to travel with the vehicle body 100 in the rail longitudinal direction. When the gap detection unit 200 is at the detection position, the gap detection unit is horizontally aligned with the junction of the track plate and the supporting layer, and for the track with the lateral stoppers arranged on both sides, the lateral stoppers and other obstacles possibly existing on both sides of the track interfere with the advancing motion of the gap detection unit 200, in this case, the obstacle avoidance driving mechanism can enable the gap detection unit 200 to be at the avoidance position to avoid each obstacle.

It is understood that the avoidance position of the gap detection unit 200 is located above the detection position thereof. In one embodiment, the obstacle avoidance driving mechanism may drive the separation detection unit 200 to vertically lift, so that the separation detection unit 200 is switched between the detection position and the avoidance position, and accordingly, the obstacle avoidance driving mechanism includes a lifting driving unit installed on the vehicle body 100, and the separation detection unit 200 is connected to an output end of the lifting driving unit through a mounting bracket 300.

Conventional lifting drive units such as air cylinders, hydraulic cylinders, electric push rods, motors and transmission mechanisms are all suitable for the embodiment. Further preferably, as shown in fig. 1, the obstacle avoidance driving mechanism further includes a lifting guide sliding table 104 disposed on the vehicle body 100, and the mounting bracket 300 is slidably disposed on the lifting guide sliding table 104; the lifting motion of the mounting bracket 300 is guided by the lifting guide sliding table 104, so that the stability of the lifting motion of the separation detection unit 200 can be improved, and the safety of equipment is ensured. The mounting bracket 300 may be detachably connected to a guide slider, and the wire slider is slidably disposed on the lifting guide sliding table 104. In an alternative embodiment, the lifting driving unit may adopt a mode of a motor + a screw rod mechanism, the screw rod is connected with the lifting driving motor, and the guide slider is screwed on the screw rod.

In another embodiment, the obstacle avoidance driving mechanism may drive the gap detection unit 200 to swing in a vertical plane, so that the gap detection unit 200 is switched between the detection position and the avoidance position. Specifically, the off-seam detection unit 200 is mounted on the vehicle body 100 through a mounting bracket 300, the off-seam detection unit 200 is rotatably mounted on the mounting bracket 300, and the axial direction of the rotating shaft is parallel to the axial direction of the wheel axle of the vehicle body 100, and the obstacle avoidance driving mechanism drives the off-seam detection unit 200 to rotate around the rotating shaft, so that the off-seam detection unit 200 swings up to avoid an obstacle, or falls down to be in a detection position. The obstacle avoidance driving mechanism can adopt driving equipment such as a micro air cylinder, a micro electric push rod and the like, and the micro air cylinder/the micro electric push rod are respectively hinged with the mounting bracket 300 and the gap detection unit 200; the specific structure is easy to design by those skilled in the art and will not be described in detail herein.

Further optimizing the above embodiment, the track slab separation detection vehicle further comprises an obstacle measurement unit for detecting an obstacle on the traveling path of the separation detection unit 200, and the automatic obstacle avoidance of the track slab separation detection vehicle can be realized by the interlocking and matching of the obstacle measurement unit and the obstacle avoidance driving mechanism. The obstacle measuring unit can adopt sensors, namely the obstacle measuring unit comprises an obstacle measuring sensor 203, and an ultrasonic sensor, a laser sensor, an infrared sensor, a radar sensor and the like are all suitable for the embodiment; in another embodiment, an obstacle measuring camera may also be used, and further, the obstacle measuring camera may be used in cooperation with the obstacle measuring sensor 203, and the type and height of the obstacle ahead may be known by the obstacle measuring camera, so that the gap-separating detecting unit 200 may avoid the obstacle more safely.

The obstacle measuring unit is preferably integrally installed with the seam crossing detecting unit 200, for example, as shown in fig. 3, the seam crossing detecting unit 200 includes a detecting box 201 and a seam crossing detecting device installed on the detecting box 201, and based on the requirement of bidirectional walking of the vehicle body 100, two sets of obstacle measuring units are preferably arranged, and are respectively installed at the front end and the rear end of the detecting box 201 along the advancing direction of the seam crossing detecting unit 200, and no matter which direction the vehicle body 100 advances, the obstacle measuring unit can well complete obstacle measuring work, and the safety of the device is ensured.

Further optimizing the above embodiment, because the gap detection unit 200 needs to switch between the detection position and the avoidance position, the accuracy of positioning the gap detection unit 200 needs to be ensured, for example, for the case that the obstacle avoidance driving mechanism drives the gap detection unit 200 to vertically lift, a limit block may be correspondingly arranged on the lift guide sliding table 104, but this embodiment provides a more general scheme: the track slab gap detection vehicle further comprises a position detection unit for detecting the position of the gap detection unit 200, in this embodiment, the position detection unit preferably comprises a height measurement sensor 204, and similarly, the height measurement sensor 204 may adopt an ultrasonic sensor, a laser ranging sensor, an infrared ranging sensor, and the like. The position detection unit is also preferably mounted integrally with the above-described off-seam detection unit 200, and in a configuration in which the off-seam detection unit 200 includes the cartridge 201 and an off-seam detection device mounted on the cartridge 201, the position detection unit is mounted on the bottom end of the cartridge 201.

As shown in fig. 3, the above-described gap detection unit 200 is optimized as follows:

in one embodiment, the above-mentioned crack-separation detection unit 200 includes a laser profile sensor 202, the laser emission direction of the laser profile sensor 202 is parallel to the horizontal direction, and is used for collecting profile data at the junction of the track slab and the supporting layer, and the laser profile sensor 202 is used for collecting the interlayer crack-separation state, so that the laser beam can penetrate into the crack-separation portion, and the crack-separation detection unit has the characteristics of higher sensitivity, resolution, accuracy and the like, and can realize visualization, and the result is visual and reliable.

In the case that the above-mentioned separation detecting unit 200 includes the detecting box 201, the laser profile sensor 202 is installed on the detecting box 201 and located on the side of the detecting box 201 facing the vehicle body 100, and when the vehicle body 100 travels on the track, the laser profile sensor 202 also faces the track side and is horizontally aligned with the boundary between the track plate and the supporting layer. Wherein the laser profile sensor 202 is an integrated module; in one embodiment, the laser profile sensors 202 are implemented as a corresponding series of laser profile sensors 202 of kirschner.

The laser profile sensor 202 is preferably electrically or communicatively connected to the computer, which is configured to acquire and analyze the profile data collected by the laser profile sensor 202 to determine whether a crack is generated. Of course, it is also possible to store the contour data by the above-mentioned computer and to manually determine whether or not a crack is generated.

In another embodiment, the above-mentioned crack detection unit 200 includes a crack camera 205, and a camera axis of the crack camera 205 is parallel to the horizontal direction, and is used for collecting image information at a junction of the track slab and the supporting layer. Similarly, the seam allowance photo camera 205 is electrically or communicatively connected to the computer, and the computer is configured to acquire and analyze image information collected by the seam allowance photo camera 205 to determine whether a seam occurs. Of course, it is also possible to store the image information by the computer and to manually determine whether or not a gap is generated.

In a further preferred scheme, the above-mentioned crack separation detection unit 200 includes a laser profile sensor 202 and a crack separation camera 205, which can further improve the accuracy of the measurement result, and the profile data collected by the laser profile sensor 202 is combined with the image information collected by the crack separation camera 205, so that the crack separation state of the track slab can be presented more intuitively, and a maintenance scheme can be established conveniently. In the case where the above-described crack detection unit 200 includes the cassette 201, the laser profile sensor 202 and the crack photographing camera 205 are both mounted on the cassette 201 and are both located on a side of the cassette 201 facing the vehicle body 100.

In connection with the structure of the track slab separation detection vehicle, the track slab separation detection vehicle further includes a speed detection unit for acquiring the moving speed of the vehicle body 100, and the speed detection unit may be, for example, a rotary encoder connected to a wheel shaft of the vehicle body 100, and of course, conventional speed measurement elements such as a wheel shaft pulse speed sensor are also applicable to this embodiment. The speed detection unit is also preferably electrically connected to the computer. The moving speed of the vehicle body 100 is detected by the speed detection unit, the computer can be correspondingly converted into the traveling mileage of the vehicle body 100, and the track slab separation measurement result can be accurately positioned after the initial mileage is determined.

The track slab number may be pre-stored in the computer database, and the track slab corresponding to the track slab gap measurement result may be calculated and judged according to the initial mileage information and the mileage information of the vehicle body 100. However, the calculation is used for judging the condition that the joint of two adjacent track slabs is possibly inaccurate, therefore, a number acquisition unit can be arranged and used for acquiring the number of the track slab to be detected, and the computer is also used for acquiring the number of the track slab to be detected and correspondingly storing the crack detection information and the track slab number. Preferably, the serial number acquisition unit comprises a serial number photographing camera, and the setting of the serial number photographing camera is preferably selected according to the engraving condition of the track slab serial number, and in one embodiment, the serial number photographing camera is preferably arranged at the bottom of the vehicle body 100 for the condition that the track slab serial number is engraved on the upper surface of the track slab (between two rails); in other embodiments, the number camera may be mounted at the bottom end of the cartridge 201 or on the mounting bracket 300. Then, still further, can set up this serial number camera demountable installation, for example through modes such as screw installation, buckle installation, magnetism installation of inhaling, be convenient for its mounted position's adjustment to be applicable to the crack state detection of different lines.

Through the matching of the serial number photographing camera and the speed detection unit, the condition that the vehicle body 100 can advance in two directions can be well adapted, and the accurate positioning of the track slab separation measurement result is ensured.

Further preferably, the track slab separation detecting vehicle is further provided with a positioning unit for positioning the position of the vehicle body 100. The positioning unit can be a GPS positioning module and/or a beidou positioning module, and of course, other positioning modules are also applicable to the embodiment. Through this positioning unit, can further guarantee to the accurate positioning of track board gap measuring result, can send simultaneously and detect car positional information in real time, the railway administration equipment management and control of going on the road at night of being convenient for.

In an optional embodiment, the track slab gap detection vehicle further includes an illumination unit for increasing the brightness of the junction between the track slab and the support layer, and the illumination unit may be used to meet the requirement of night measurement, and ensure the accuracy of the measurement result and the safety of personnel equipment, especially when the gap camera 205 is configured. The lighting unit may employ conventional lighting fixtures, such as LED lamps and the like; in the case where the off-seam detecting unit 200 includes a cartridge 201, the illumination unit is provided on a side of the cartridge 201 facing the vehicle body 100.

Also, with the above-described structure provided with the numbered photographing cameras, the lighting apparatus may be provided for the numbered photographing cameras.

As shown in fig. 1 and 2, the two sets of gap detection units 200 are preferably provided and respectively mounted on both sides of the vehicle body 100 along the wheel axis direction of the vehicle body 100, and the two sets of gap detection units 200 are preferably configured to respectively detect the gap states on both sides of the track plate.

Further optimize the structure of above-mentioned detection car, this track board separation seam detection car is the detachable structure, specifically can include at least one in following detachable structure:

(1) the mounting bracket 300 is detachably mounted to the vehicle body 100;

(2) the detection box 201 is detachably mounted on the mounting bracket 300;

(3) the lifting guide sliding table 104 is detachably mounted on the vehicle body 100;

(4) the manual push handle 400 is detachably mounted on the vehicle body 100;

(5) the vehicle body 100 comprises a vehicle frame 101 and a wheel 102 arranged on the vehicle frame 101, wherein the vehicle frame 101 comprises a plurality of frame bodies, and the frame bodies are sequentially detachably assembled along the axial direction of a wheel shaft; wherein the wheel assembly is also preferably detachably connected to the frame 101.

The detachable mounting structure is preferably a bolt connection, although other detachable connection methods are also suitable for use in the present embodiment.

Based on above-mentioned structure, can be convenient for this track board from the transportation of seam detection car, simultaneously, be convenient for the maintenance of different parts to be changed.

Further preferably, as shown in fig. 1, the mounting bracket 300 includes a horizontal frame bar 301 and a vertical frame bar 302, the horizontal frame bar 301 is connected to the vehicle body 100, for example, slidably mounted on the lifting guide sliding table 104, the top end of the vertical frame bar 302 is connected to the horizontal frame bar 301, and the detecting box 201 is mounted at the bottom end of the vertical frame bar 302. Wherein, the detecting box 201 is preferably detachably mounted on the vertical frame bar 302; the vertical frame bar 302 and the horizontal frame bar 301 are preferably detachably connected, for example, by an adapter to which both the vertical frame bar 302 and the horizontal frame bar 301 are connected in a pluggable manner. Further can set up stiffener 303, this stiffener 303 both ends are connected with horizontal hack lever 301 and vertical hack lever 302 respectively, can improve the stationarity of vertical hack lever 302, avoid detecting box 201 and rock and influence the testing result accuracy.

Further preferably, as shown in fig. 1 and fig. 2, the vehicle body 100 is configured with three wheels 102, and the three wheels 102 are arranged in a triangle, so that on the premise of ensuring the operation stability and smoothness of the vehicle body 100, the structure of the vehicle body 100 is simplified, the number of components and the occupied space of the vehicle body 100 are reduced, and the vehicle body 100 is convenient to transport. Accordingly, the frame 101 includes a main frame in a straight shape and two wing frames 103 connected to one end of the main frame, the two wing frames 103 are respectively installed at both sides of the main frame in the traveling direction of the vehicle body 100 for respectively installing one wheel 102, and the other wheel 102 is installed at the other end of the main frame. Two wing frames 103 can be further arranged to be detachably assembled with the main frame; the main frame comprises a plurality of frame body parts, and each frame body part is sequentially detachably assembled along the axial direction of the wheel axle.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a but two-way walking's track board crack detection car that leaves, includes the automobile body and install in crack detecting element on the automobile body, its characterized in that:

2. The track slab separation detection vehicle capable of walking in two directions according to claim 1, wherein: the vehicle body is provided with an obstacle avoidance driving mechanism, and the separation detection unit is connected with the obstacle avoidance driving mechanism so as to have a detection position which is horizontally aligned with the junction of the track plate and the supporting layer and an avoidance position which avoids obstacles on the advancing path of the track plate.

3. The track slab separation detection vehicle capable of walking in two directions according to claim 2, wherein: the obstacle avoidance driving mechanism comprises a lifting driving unit arranged on the vehicle body, and the separation detection unit is connected with the output end of the lifting driving unit through a mounting bracket.

4. The track slab separation detection vehicle capable of walking in two directions according to claim 2, wherein: the obstacle detection unit is used for detecting obstacles on the travelling path of the seam separation detection unit;

5. The track slab separation detection vehicle capable of walking in two directions according to claim 4, wherein: the obstacle measuring unit comprises an obstacle measuring sensor.

6. The bidirectionally-walkable track slab separation inspection vehicle according to any one of claims 1 to 5, wherein: also comprises a display used for displaying the crack detection information,

7. The track slab separation detection vehicle capable of walking in two directions according to claim 6, wherein: the display may be a touch screen display.

8. The track slab separation detection vehicle capable of walking in two directions according to claim 6, wherein: the display device also comprises a computer, and the computer and the display are integrated into an integrated machine.

9. The track slab separation detection vehicle capable of walking in two directions according to claim 1, wherein: the vehicle body moving speed detection device further comprises a speed detection unit for acquiring the moving speed of the vehicle body.

10. The track slab separation detection vehicle capable of walking in two directions according to claim 9, wherein: the frame bottom of automobile body is equipped with the serial number camera of shooing that is used for gathering and waits to examine the track board serial number.