Wing-type high-speed rail track slab defect inspection vehicle

Abstract

The present invention provides a wing-spreading high-speed rail track plate defect detection vehicle, which relates to the technical field of high-speed rail track plate defect detection. The detection vehicle includes a vehicle body, an extension drive mechanism, a lifting mechanism, a first detection component and a second detection component; the extension drive mechanism is in two groups and is symmetrically arranged on both sides of the vehicle body's movement direction; the first detection components are in two groups and are symmetrically arranged on both sides of the vehicle body, and the two groups of the first detection components are respectively connected to the extension drive mechanisms on both sides of the vehicle body; the lifting mechanism is in two groups and is symmetrically arranged on both sides of the bottom of the vehicle body along the vehicle body's movement direction; the second detection components are in two groups and are arranged one-to-one with the lifting mechanism. The present invention can expand the scope of single track plate defect detection, facilitate the detection of track plates in operation and under construction, and the detection is efficient and intelligent.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed railway track slab defect detection, and in particular to a wing-spreading high-speed railway track slab defect detection vehicle. Background Art

[0002] With the rapid development of my country's economy, the importance of rail transit has become increasingly prominent. Under this development trend, CRTS I, CRTS II and CRTS III slab ballastless tracks, as my country's completely independent intellectual property rights, have been widely used in the construction of high-speed rail lines; however, since the high-speed rail lines were put into operation, some ballastless tracks have suffered from problems such as settlement, gap separation and dislocation. The causes of these problems are mostly due to gaps between the track plate and the base plate, uneven filling and material defects. Considering that the location of the disease is located inside a complex structure, it is highly concealed, which increases the difficulty of detection and reduces the efficiency of detection; at the same time, the railway in operation has been speeding up year after year and the load operation tasks are heavy, and the time without vehicles for effective maintenance and inspection operations is getting shorter and shorter, and the railway maintenance and inspection work must be completed within 3 to 4 hours during the window period.

[0003] At present, in on-site inspection and maintenance, most measurement methods and inspection equipment have problems such as being time-consuming and labor-intensive, expensive, having a limited detection range, relying on the stability of the equipment and the proficiency of the operators, having high labor intensity and low efficiency, making it difficult to achieve good disease detection results.

[0004] In summary, it is necessary to develop a wing-spreading high-speed rail track slab defect inspection vehicle that can be used to expand the scope of single track slab defect inspection, facilitate the inspection and use of track slabs in operation and under construction, have efficient inspection operations, a high degree of automation, and reduce labor intensity. Summary of the invention

[0005] The purpose of the present invention is to provide a wing-spreading high-speed railway track plate defect detection vehicle, and the specific technical scheme is as follows:

[0006] A wing-spreading high-speed rail track plate defect detection vehicle, comprising a vehicle body, an extension drive mechanism and a first detection component;

[0007] There are two groups of extension drive mechanisms, which are symmetrically arranged on both sides of the movement direction of the vehicle body; each group of the extension drive mechanisms includes a hinged four-bar assembly, a telescopic assembly and a lifting assembly; one end of the hinged four-bar assembly is hinged to the vehicle body, and the other end is connected to the telescopic assembly; the telescopic assembly approaches or moves away from the vehicle body; the lifting assembly is connected to a movable slider on the telescopic assembly; there are two groups of the first detection assemblies, which are symmetrically arranged on both sides of the vehicle body, and the two groups of the first detection assemblies are respectively clamped and hinged with the lifting assemblies on both sides of the vehicle body.

[0008] Optionally, in each set of the extension drive mechanism, the hinged four-bar assembly includes a crank-rocker mechanism and a connecting frame;

[0009] The crank rocker mechanism includes a driving member, a first frame, a first connecting rod, a connecting rod, a second connecting rod and a second frame, wherein the first frame is fixedly arranged on the vehicle body; the second frame is fixedly arranged on the connecting frame; one end of the first connecting rod is hingedly arranged on the first frame, and the other end is rotatably connected to the connecting rod; one end of the connecting rod away from the first connecting rod is rotatably connected to the second connecting rod; one end of the second connecting rod away from the connecting rod is fixedly connected to the second frame; the output end of the driving member is connected to the input shaft of the first connecting rod through a coupling, and the first connecting rod is driven to rotate by the rotation of the output end of the driving member;

[0010] In each set of the hinged four-bar assembly, the crank-rocker mechanisms are at least two in number and move synchronously.

[0011] Optionally, in each group of the extension drive mechanism, the telescopic assembly includes a telescopic screw module and a synchronous beam; the telescopic screw modules are two in number and are symmetrically arranged on the connecting frame along the movement direction of the vehicle body, and the two groups of the telescopic screw modules synchronously approach or move away from the vehicle body on the same side of the vehicle body; movable sliders are arranged on the two groups of the telescopic screw modules, and both ends of the synchronous beam are connected to the corresponding movable sliders.

[0012] Optionally, in each group of the extension drive mechanism, the lifting assembly includes two groups of lifting screw modules and two groups of first connecting parts; the two groups of lifting screw modules are symmetrically arranged on the two ends of the synchronous beam; the first connecting parts are arranged in a one-to-one correspondence with the lifting screw modules, and a lifting slider for connecting the corresponding first connecting part is provided on each group of the lifting screw modules; the end of the first connecting part away from the lifting slider is clamped and hinged with the first detection assembly.

[0013] Optionally, the wing-spreading high-speed rail track plate defect detection vehicle further includes a lifting mechanism and a second detection component; the lifting mechanism is in two groups and is symmetrically arranged on both sides of the bottom of the vehicle body along the movement direction of the vehicle body; the second detection component is in two groups and is arranged in a one-to-one correspondence with the lifting mechanism;

[0014] Each group of the lifting mechanism includes a first screw module, a second screw module, a first connecting component and a second connecting component; the first screw module and the second screw module are symmetrically arranged on both ends of one side of the bottom of the vehicle body along the movement direction of the vehicle body, a first slider for connecting the first connecting component is arranged on the first screw module, and a second slider for connecting the second connecting component is arranged on the second screw module; the second detection component is arranged away from the first slider and the second slider, and its two ends are respectively clamped and hinged with the first connecting component and the second connecting component.

[0015] Optionally, the first detection component and the second detection component have the same structure, and both include an ultrasonic sensor driver, a first supporting groove, a second supporting groove, a second connecting piece and an ultrasonic transducer; the first supporting groove and the second supporting groove are arranged up and down, and the two are connected by the second connecting piece; the ultrasonic sensor driver is arranged in the first supporting groove; the ultrasonic transducer passes through the second supporting groove, and its top is connected to the ultrasonic sensor driver through a wire, and its bottom faces the detection surface; the number of the ultrasonic transducers is multiple, and they are arranged in a linear array along the movement direction of the vehicle body.

[0016] Optionally, the first detection assembly and the second detection assembly further include a protective cover, and the protective cover is disposed on the first supporting groove; the protective cover is a transparent cover.

[0017] Optionally, the wing-spreading high-speed railway track plate defect inspection vehicle also includes a cleaning mechanism, which includes a cleaning component and a spraying device; the number of the cleaning components is multiple, and they are arranged one-to-one corresponding to the second support grooves; each of the cleaning components includes a motor and a nylon brush disc, the motor is arranged at the end of the second support groove, and its output shaft is connected to the nylon brush disc; the working surface of the nylon brush disc faces the track plate; the spraying device includes a water tank arranged on the vehicle body and a plurality of nozzles connected to the water tank; the nozzle is arranged on the end of the second support groove, and is arranged one-to-one corresponding to the cleaning components, and the nozzle of the nozzle faces the inspection surface.

[0018] Optionally, the vehicle body includes a frame, a differential drive assembly and a universal wheel assembly;

[0019] The differential drive assembly is arranged at the front end of the frame in the moving direction, and comprises a first differential drive member, a second differential drive member, a first coupling, a second coupling, a first driving wheel and a second driving wheel; the first driving wheel and the second driving wheel are symmetrically arranged on both sides of the front end of the frame; the first driving wheel is connected to the first differential drive member through the first coupling; the second driving wheel is connected to the second differential drive member through the second coupling;

[0020] The universal wheel assembly is arranged at the rear end of the frame in the direction of movement, and comprises a first universal wheel and a second universal wheel; the first universal wheel and the second universal wheel are symmetrically and rotatably arranged on both sides of the rear end of the frame;

[0021] A camera is also arranged at the front end of the frame in the moving direction; and ultrasonic distance measuring sensors are arranged on both sides of the frame in the moving direction.

[0022] Optionally, the wing-spreading high-speed railway track plate defect inspection vehicle also includes an electronic control device, which is arranged on the vehicle body and is connected to the extension drive mechanism, the first detection component, the lifting mechanism, the second detection component, the cleaning mechanism, the differential drive component, the camera and the ultrasonic ranging sensor through circuits respectively.

[0023] The application of the technical solution of the present invention has at least the following beneficial effects:

[0024] The wing-spreading high-speed railway track plate defect detection vehicle provided by the present invention realizes the detection of the detection position on the outer side of the track plate support platform by combining the extension drive mechanism and the first detection component; and realizes the detection of the middle station of the track plate by combining the lifting mechanism and the second detection component. Therefore, the present invention uses the extension drive mechanism, the first detection component, the lifting mechanism and the second detection component in combination to simultaneously detect four lines on the track plate, expand the detection range of a single track plate defect, and improve the detection efficiency. In addition, the present invention can be used to detect track plates during the construction period before the installation of rails on the high-speed railway track and the operation period after completion, and can realize multi-station detection on the high-speed railway track plate. In addition, the present invention has the advantages of high automation and intelligence of the whole machine, reduces the intensity of manual labor, and improves the detection efficiency.

[0025] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 2 is a schematic diagram of the overall structure of a wing-spreading high-speed railway track slab defect detection vehicle according to an embodiment of the present invention;

[0028] Figure 2 yes Figure 1 Schematic diagram of the structure of the mid-wing high-speed rail track slab defect inspection vehicle when in use;

[0029] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle car body;

[0030] Figure 4 yes Figure 1 A schematic diagram of the structure of the middle extension drive mechanism and the first detection assembly combination (the cleaning component is still included in the figure);

[0031] Figure 5 yes Figure 1 A schematic diagram of the structure of the middle lifting mechanism and the second detection assembly combination (the cleaning component is still included in the figure);

[0032] Figure 6 yes Figure 5 A right view of the second detection component;

[0033] Figure 7 yes Figure 2 Schematic diagram of the structure of the mid-wing high-speed rail track slab defect inspection vehicle after work is completed;

[0034] Among them, 1. body, 1.1. frame, 1.1.1. camera, 1.1.2. ultrasonic ranging sensor, 1.2. differential drive assembly, 1.3. universal wheel assembly, 2. extension drive mechanism, 2.1. hinge four-bar assembly, 2.1.1. crank rocker mechanism, 2.1.2. connecting frame, 2.2. telescopic assembly, 2.2.1. telescopic screw module, 2.2.2. synchronous crossbeam, 2.3. lifting assembly, 2.3.1. lifting screw module, 2.3.2. first connecting member, 3. A detection component, 4. Lifting mechanism, 4.1. First lead screw module, 4.2. Second lead screw module, 4.3. First connecting component, 4.4. Second connecting component, 5. Second detection component, 5.1. Ultrasonic sensor driver, 5.2. First supporting groove, 5.3. Second supporting groove, 5.4. Second connecting member, 5.5. Ultrasonic transducer, 5.6. Protective cover, 6. Cleaning mechanism, 6.1. Cleaning component, 6.2. Spraying equipment, 7. Electronic control equipment, A. Rail, B. Rail support platform, C. Track plate. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0036] Example:

[0037] See also Figure 1-7 , a wing-spreading high-speed rail track plate defect detection vehicle, comprising a vehicle body 1, an extension drive mechanism 2 and a first detection component 3;

[0038] The extension drive mechanism 2 is in two groups and is symmetrically arranged on both sides of the movement direction of the vehicle body 1; each group of the extension drive mechanism 2 includes a hinged four-bar assembly 2.1, a telescopic assembly 2.2 and a lifting assembly 2.3; one end of the hinged four-bar assembly 2.1 is hinged to the vehicle body 1, and the other end is connected to the telescopic assembly 2.2; the telescopic assembly 2.2 is close to or away from the vehicle body 1; the lifting assembly 2.3 is connected to the moving slider on the telescopic assembly 2.2;

[0039] The number of the first detection components 3 is two groups and they are symmetrically arranged on both sides of the vehicle body 1. The two groups of the first detection components 3 are respectively clamped and hinged with the lifting components 2.3 on both sides of the vehicle body 1. In this embodiment, the extension drive mechanism 2 is used to realize the storage and release functions of the first detection component 3. When the wing-spreading drive mechanism 2 is erected, it is in the storage state, which can save the space occupied by the equipment. At this time, the telescopic component 2.2 is in a position close to the frame, which can reduce the driving torque of the hinge four-bar component 2.1; when the wing-spreading drive mechanism 2 is unfolded, it is in the release state. Moving the telescopic component 2.2 to a position away from the frame can reach the detection position, thereby realizing the disease detection of the edge of the track plate C.

[0040] In each set of the extension drive mechanism 2, the hinged four-bar assembly 2.1 includes a crank-rocker mechanism 2.1.1 and a connecting frame 2.1.2;

[0041] The crank rocker mechanism 2.1.1 includes a driving member, a first frame, a first connecting rod, a connecting rod, a second connecting rod and a second frame, wherein the first frame is fixedly arranged on the vehicle body 1; the second frame is fixedly arranged on the connecting frame 2.1.2; one end of the first connecting rod is hingedly arranged on the first frame, and the other end is rotatably connected to the connecting rod; one end of the connecting rod away from the first connecting rod is rotatably connected to the second connecting rod; one end of the second connecting rod away from the connecting rod is fixedly connected to the second frame; the output end of the driving member (i.e., the output shaft of the reducer) is connected to the input shaft of the first connecting rod through a coupling, and the first connecting rod is driven to rotate by the rotation of the output end of the driving member;

[0042] In each group of the hinged four-bar assembly 2.1, the crank-rocker mechanism 2.1.1 is in two groups and moves synchronously, so as to reduce the imbalance of the load on the connecting frame 2.1.2 and the first detection assembly 3, and ensure the force balance and stable movement of the connecting frame 2.1.2 and the first detection assembly 3 during operation.

[0043] In each group of the extension drive mechanism 2, the telescopic component 2.2 includes a telescopic screw module 2.2.1 and a synchronous beam 2.2.2; the number of the telescopic screw modules 2.2.1 is two groups and they are symmetrically arranged on the connecting frame 2.1.2 along the movement direction of the vehicle body 1, and the two groups of telescopic screw modules 2.2.1 synchronously approach or move away from the vehicle body 1 on the same side of the vehicle body 1; the moving sliders are arranged on the two groups of telescopic screw modules 2.2.1, and both ends of the synchronous beam 2.2.2 are connected to the corresponding moving sliders to enable the first detection component 3 to reach the detection positions at both ends of the track plate C in the width direction; after the detection vehicle completes the detection work, the first detection component 3 can be stored by retracting the telescopic component 2.2, and the driving torque of the hinged four-bar component 2.1 can also be reduced to reduce energy consumption.

[0044] In each group of the extension drive mechanism 2, the lifting assembly 2.3 includes two groups of lifting screw modules 2.3.1 and two groups of first connecting members 2.3.2; the two groups of lifting screw modules 2.3.1 are symmetrically arranged at the two ends of the synchronous beam 2.2.2; the first connecting member 2.3.2 is arranged one-to-one with the lifting screw module 2.3.1, and a lifting slider corresponding to the first connecting member 2.3.2 is arranged on each group of the lifting screw module 2.3.1; the end of the first connecting member 2.3.2 away from the lifting slider is clamped and hinged with the first detection assembly 3, so that the first detection assembly 3 can remain vertical by its own weight during movement, so as to achieve close coupling between the detection surface of the first detection assembly 3 and the detection surface of the track plate C, thereby reducing detection errors.

[0045] The wing-spreading high-speed rail track slab defect detection vehicle further includes a lifting mechanism 4 and a second detection assembly 5; the lifting mechanism 4 is provided in two groups and is symmetrically arranged on both sides of the bottom of the vehicle body 1 along the moving direction of the vehicle body 1; the second detection assembly 5 is provided in two groups and is arranged one-to-one with the lifting mechanism 4;

[0046] Each group of the lifting mechanism 4 includes a first screw module 4.1, a second screw module 4.2, a first connecting component 4.3 and a second connecting component 4.4; the first screw module 4.1 and the second screw module 4.2 are symmetrically arranged at the two ends of one side of the bottom of the vehicle body 1 along the movement direction of the vehicle body 1, and a first slider for connecting the first connecting component 4.3 is arranged on the first screw module 4.1, and a second slider for connecting the second connecting component 4.4 is arranged on the second screw module 4.2, so as to facilitate the height adjustment of the second detection component 5 and realize the lowering and recovery of the second detection component 5 in the vertical direction; the second detection component 5 is arranged away from the first slider and the second slider, and its two ends are respectively clamped and hinged with the first connecting component 4.3 and the second connecting component 4.4, so as to facilitate the second detection component 5 to remain vertical by its own weight during the movement, so as to realize the close coupling of the detection surface of the second detection component 5 and the detection surface of the track plate C, and reduce the detection error. In this embodiment, the combination of the lifting mechanism 4 and the second detection component 5 can realize the detection of the middle station of the track plate C.

[0047] Each group of the first detection components 3 and each group of the second detection components 5 have the same structure. For example, each group of the second detection components 5 includes an ultrasonic sensor driver 5.1, a first support groove 5.2 (specifically an aluminum groove), a second support groove 5.3 (specifically an aluminum groove), a second connecting piece 5.4 and an ultrasonic transducer 5.5; the first support groove 5.2 and the second support groove 5.3 are arranged up and down, and the two are connected by the second connecting piece 5.4. Specifically, between the first support groove 5.2 and the second connecting piece 5.4 and the second support groove 5.3, the second connecting piece 5.4 is connected to the ultrasonic transducer 5.5. The support groove 5.3 and the second connecting member 5.4 are connected by bolts and nuts; the ultrasonic sensor driver 5.1 is arranged in the first support groove 5.2; the ultrasonic transducer 5.5 is arranged through the second support groove 5.3, and its top is connected to the ultrasonic sensor driver 5.1 through a wire, and the bottom faces the detection surface; in each group of the first detection components 3 and each group of the second detection components 5, the number of ultrasonic transducers 5.5 is sixteen, and they are arranged in a linear array along the movement direction of the vehicle body 1 in sequence, so as to increase the detection range.

[0048] The second detection component 5 also includes a protective cover 5.6, which is arranged on the first supporting groove 5.2 to protect the ultrasonic sensor driver 5.1 under harsh working conditions; the protective cover 5.6 is a transparent cover to realize the visualization of the ultrasonic sensor driver 5.1, to facilitate the observation of the working status of the ultrasonic sensor driver 5.1, and to facilitate the observation of whether the ultrasonic sensor driver 5.1 has a fault, so as to facilitate troubleshooting.

[0049] The wing-type high-speed rail track plate defect detection vehicle also includes a cleaning mechanism 6, which includes a cleaning component 6.1 and a spray device 6.2; the number of the cleaning components 6.1 is multiple, and they are arranged in a one-to-one correspondence with the second support groove 5.3; each of the cleaning components 6.1 includes a motor and a nylon brush disc, the motor is arranged at the end of the second support groove 5.3, and its output shaft is connected to the nylon brush disc; the working surface of the nylon brush disc faces the track plate C; the spray device 6.2 includes a water tank arranged on the vehicle body 1 and a plurality of nozzles (not shown in the figure) connected to the water tank; The nozzle is arranged on the end of the second supporting groove 5.3 and is arranged one by one with the cleaning component 6.1. The nozzle of the nozzle is directed toward the detection surface, so that the cleaning component 6.1 can complete the cleaning operation of the detection area on the track plate C. At the same time, the nozzle sprays water to moisten the detection area of ​​the track plate, which is convenient for the ultrasonic transducer 5.5 to perform the detection operation. Since there is a gap between the ultrasonic transducer 5.5 and the ground in the detection area, it is filled with water to facilitate the ultrasonic transducer 5.5 to perform normal detection work (the ultrasonic transducer 5.5 has a high frequency and is easily attenuated in the air, so it needs to be coupled with water).

[0050] The vehicle body 1 comprises a vehicle frame 1.1, a differential drive assembly 1.2 and a universal wheel assembly 1.3;

[0051] The differential drive assembly 1.2 is arranged at the front end of the frame 1.1 in the moving direction, and comprises a first differential drive member (specifically a servo motor), a second differential drive member (specifically a servo motor), a first coupling, a second coupling, a first driving wheel and a second driving wheel; the first driving wheel and the second driving wheel are symmetrically arranged on both sides of the front end of the frame 1.1; the first driving wheel is connected to the first differential drive member through the first coupling; the second driving wheel is connected to the second differential drive member through the second coupling; the first differential drive member and the second differential drive member are used to realize the differential movement of the first driving wheel and the second driving wheel, thereby realizing the steering of the detection vehicle;

[0052] The universal wheel assembly 1.3 is arranged at the rear end of the frame 1.1 in the direction of movement, and comprises a first universal wheel and a second universal wheel; the first universal wheel and the second universal wheel are symmetrically and rotatably arranged on both sides of the rear end of the frame 1.1;

[0053] A camera 1.1.1 is also provided at the front end of the frame 1.1 in the direction of movement; ultrasonic ranging sensors 1.1.2 are provided on both sides of the frame 1.1 in the direction of movement to determine the distance between the frame 1.1 and the rail supports B and rails A on both sides to prevent collision, and adjust the direction of the inspection vehicle according to the distance between the frame 1.1 and the rail supports B on both sides, so that the inspection vehicle can travel along the track route on the track plate C without colliding with the rail supports or rails.

[0054] The wing-spreading high-speed railway track plate defect detection vehicle also includes an electronic control device 7, which is a conventional structure device consisting of a PLC, a stepper motor driver, a servo motor driver, a power supply and a power conversion module and a protection circuit. The electronic control device 7 is arranged on the vehicle body 1, and is respectively connected to the extension drive mechanism 2, the first detection component 3, the lifting mechanism 4, the second detection component 5, the cleaning mechanism 6, the differential drive component 1.2, the camera 1.1.1 and the ultrasonic ranging sensor 1.1.2 through circuits.

[0055] The operating principle of the wing-spreading high-speed rail track slab defect detection vehicle is as follows:

[0056] First, the inspection vehicle is put on line, the electric control device 7 controls the extension drive mechanism 2 to unfold, and the telescopic component 2.2 extends away from the vehicle body; the lifting component 2.3 and the lifting mechanism 4 descend, so that the first inspection component 3 and the second inspection component 5 descend, so that the cleaning mechanism 6 can contact the track; then the inspection vehicle moves forward, cleans out the inspection area and sprays water to wet the track plate; when the inspection vehicle moves forward a distance of an inspection station, it stops moving forward, and the cleaning mechanism 6 stops working;

[0057] Secondly, the electric control device 7 controls the lifting components 2.3 on both sides to drive the first detection components 3 on both sides to descend, so that the detection surface of the first detection component 3 (i.e., the bottom surface of the ultrasonic transducer 5.5) is tightly coupled with the detection surface of the track plate C, and the defect information of the track plate C is detected; at the same time, the electric control device 7 controls the lifting mechanism 4 to drive the second detection component 5 to descend, so that the detection surface of the second detection component 5 (i.e., the bottom surface of the ultrasonic transducer 5.5) is tightly coupled with the detection surface of the track plate C, and the defect information of the track plate C is detected; the electric control device 7 controls the ultrasonic sensor driver 5.1 to operate and analyze the defect information, and completes the detection of the detection station;

[0058] Then, the electric control device 7 controls the lifting components 2.3 on both sides to drive the first detection components 3 on both sides to rise, so that the detection surface of the first detection component 3 is separated from the detection surface of the track plate C; the electric control device 7 controls the lifting mechanism 4 to drive the second detection component 5 to rise, so that the detection surface of the second detection component 5 is separated from the detection surface of the track plate C; the electric control device 7 controls the differential drive component 1.2 to move the vehicle body 1 to the next detection station, and at the same time, the electric control device 7 starts the cleaning mechanism 6 to clean the sand and dust on the next detection station, and at the same time, the spray mechanism sprays water to wet the track plate C. When the detection vehicle moves forward a distance of a detection station, it stops moving forward, and the cleaning mechanism 6 stops working; repeat the above detection process until the detection task is completed;

[0059] Finally, the electronic control device 7 controls the telescopic component 2.2 to drive the lifting components 2.3 on both sides to approach the vehicle body 1 and move a certain distance to reduce the torque, and the extension drive mechanism 2 is recovered, and the first detection component 3 is recovered to the top of the vehicle body 1 for storage, thereby reducing the space occupied by the inspection vehicle; the electronic control device 7 controls the lifting mechanism 4 to lift the second detection component 5, and stores the second detection component 5 to the bottom of the vehicle body 1; the inspection vehicle drives to the offline point and completes the offline process.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The wing-spreading high-speed rail track slab defect detection vehicle is characterized by: It comprises a vehicle body (1), an extension drive mechanism (2) and a first detection component (3); The extension drive mechanisms (2) are in two groups and are symmetrically arranged on both sides of the movement direction of the vehicle body (1); each group of the extension drive mechanisms (2) comprises a hinged four-bar assembly (2.1), a telescopic assembly (2.2) and a lifting assembly (2.3); one end of the hinged four-bar assembly (2.1) is hinged to the vehicle body (1), and the other end is connected to the telescopic assembly (2.2); the telescopic assembly (2.2) moves closer to or farther from the vehicle body (1); the lifting assembly (2.3) is connected to a movable slider on the telescopic assembly (2.2); The first detection components (3) are in two groups and are symmetrically arranged on both sides of the vehicle body (1); the two groups of the first detection components (3) are respectively clamped and hinged with the lifting components (2.3) on both sides of the vehicle body (1); In each set of the extension drive mechanism (2), the hinged four-bar assembly (2.1) comprises a crank-rocker mechanism (2.1.1) and a connecting frame (2.1.2); The crank rocker mechanism (2.1.1) comprises a driving member, a first frame, a first connecting rod, a connecting rod, a second connecting rod and a second frame, wherein the first frame is fixedly arranged on the vehicle body (1); the second frame is fixedly arranged on the connecting frame (2.1.2); one end of the first connecting rod is hingedly arranged on the first frame, and the other end is rotatably connected to the connecting rod; one end of the connecting rod away from the first connecting rod is rotatably connected to the second connecting rod; one end of the second connecting rod away from the connecting rod is fixedly connected to the second frame; the output end of the driving member is connected to the input shaft of the first connecting rod through a coupling, and the first connecting rod is driven to rotate by the rotation of the output end of the driving member; In each set of the hinged four-bar assembly (2.1), the crank-rocker mechanisms (2.1.1) are at least two in number and move synchronously; It also includes a lifting mechanism (4) and a second detection assembly (5); the lifting mechanism (4) is provided in two groups and is symmetrically arranged on both sides of the bottom of the vehicle body (1) along the movement direction of the vehicle body (1); the second detection assembly (5) is provided in two groups and is arranged in a one-to-one correspondence with the lifting mechanism (4).

2. The wing-spreading high-speed railway track slab defect detection vehicle according to claim 1 is characterized in that: In each group of the extension drive mechanism (2), the telescopic assembly (2.2) comprises a telescopic screw module (2.2.1) and a synchronous crossbeam (2.2.2); the number of the telescopic screw modules (2.2.1) is two and they are symmetrically arranged on the connecting frame (2.1.2) along the movement direction of the vehicle body (1), and the two groups of the telescopic screw modules (2.2.1) synchronously approach or move away from the vehicle body (1) on the same side of the vehicle body (1); the movable sliders are arranged on the two groups of the telescopic screw modules (2.2.1), and both ends of the synchronous crossbeam (2.2.2) are connected to the corresponding movable sliders.

3. The wing-spreading high-speed railway track slab defect detection vehicle according to claim 2 is characterized in that: In each group of the extension drive mechanism (2), the lifting assembly (2.3) includes two groups of lifting screw modules (2.3.1) and two groups of first connecting members (2.3.2); the two groups of lifting screw modules (2.3.1) are symmetrically arranged at both ends of the synchronous crossbeam (2.2.2); the first connecting members (2.3.2) are arranged in a one-to-one correspondence with the lifting screw modules (2.3.1), and a lifting slider for connecting to the corresponding first connecting member (2.3.2) is arranged on each group of the lifting screw modules (2.3.1); the end of the first connecting member (2.3.2) away from the lifting slider is clamped and hinged with the first detection assembly (3).

4. The wing-spreading high-speed railway track slab defect detection vehicle according to any one of claims 1 to 3, characterized in that: Each group of the lifting mechanisms (4) comprises a first screw module (4.1), a second screw module (4.2), a first connecting component (4.3) and a second connecting component (4.4); the first screw module (4.1) and the second screw module (4.2) are symmetrically arranged at two ends of one side of the bottom of the vehicle body (1) along the movement direction of the vehicle body (1); a first slider for connecting the first connecting component (4.3) is arranged on the first screw module (4.1); and a second slider for connecting the second connecting component (4.4) is arranged on the second screw module (4.2); the second detection component (5) is arranged away from the first slider and the second slider, and its two ends are respectively clamped and hinged with the first connecting component (4.3) and the second connecting component (4.4).

5. The wing-spreading high-speed railway track slab defect detection vehicle according to claim 4 is characterized in that: The first detection component (3) and the second detection component (5) have the same structure, and both comprise an ultrasonic sensor driver (5.1), a first support groove (5.2), a second support groove (5.3), a second connecting piece (5.4) and an ultrasonic transducer (5.5); the first support groove (5.2) and the second support groove (5.3) are arranged one above the other and are connected via the second connecting piece (5.4); the ultrasonic sensor driver (5.1) is arranged in the first support groove (5.2); the ultrasonic transducer (5.5) is arranged through the second support groove (5.3), and the top of the ultrasonic transducer is connected to the ultrasonic sensor driver (5.1) via a wire, while the bottom faces the detection surface; there are a plurality of ultrasonic transducers (5.5), which are sequentially arranged in a linear array along the moving direction of the vehicle body (1).

6. The wing-spreading high-speed railway track slab defect detection vehicle according to claim 5 is characterized in that: The first detection component (3) and the second detection component (5) further comprise a protective cover (5.6), wherein the protective cover (5.6) is arranged on the first supporting groove (5.2); the protective cover (5.6) is a transparent cover.

7. The wing-spreading high-speed railway track slab defect detection vehicle according to claim 5 is characterized in that: The vehicle also comprises a cleaning mechanism (6), wherein the cleaning mechanism (6) comprises a cleaning component (6.1) and a spray device (6.2); the cleaning components (6.1) are provided in a plurality and are arranged one-to-one with the second support grooves (5.3); each cleaning component (6.1) comprises a motor and a nylon brush disc, the motor being arranged at the end of the second support groove (5.3), and the output shaft of the motor being connected to the nylon brush disc; the working surface of the nylon brush disc facing the track plate (C); the spray device (6.2) comprising a water tank arranged on the vehicle body (1) and a plurality of spray heads connected to the water tank; the spray heads are arranged at the end of the second support groove (5.3), and are arranged one-to-one with the cleaning components (6.1), and the nozzles of the spray heads facing the detection surface.

8. The wing-spreading high-speed railway track slab defect detection vehicle according to claim 7 is characterized in that: The vehicle body (1) comprises a vehicle frame (1.1), a differential drive assembly (1.2) and a universal wheel assembly (1.3); The differential drive assembly (1.2) is arranged at the front end of the frame (1.1) in the moving direction, and comprises a first differential drive member, a second differential drive member, a first coupling, a second coupling, a first driving wheel and a second driving wheel; the first driving wheel and the second driving wheel are symmetrically arranged on both sides of the front end of the frame (1.1); the first driving wheel is connected to the first differential drive member via the first coupling; the second driving wheel is connected to the second differential drive member via the second coupling; The universal wheel assembly (1.3) is arranged at the rear end of the frame (1.1) in the direction of movement, and comprises a first universal wheel and a second universal wheel; the first universal wheel and the second universal wheel are symmetrically and rotatably arranged on both sides of the rear end of the frame (1.1); A camera (1.1.1) is also arranged at the front end of the vehicle frame (1.1) in the direction of movement; and ultrasonic distance measuring sensors (1.1.2) are arranged on both sides of the vehicle frame (1.1) in the direction of movement.

9. The wing-spreading high-speed railway track slab defect detection vehicle according to claim 8 is characterized in that: The vehicle also includes an electric control device (7), which is arranged on the vehicle body (1) and is connected to the extension drive mechanism (2), the first detection component (3), the lifting mechanism (4), the second detection component (5), the cleaning mechanism (6), the differential drive component (1.2), the camera (1.1.1) and the ultrasonic distance measuring sensor (1.1.2) through circuits.

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