Omnibearing on-line detection system for flattening integrated ballast bed running gear

Abstract

The utility model discloses a flattening all-directional online detection system applied to an integral ballast bed running gear. The flattening all-directional online detection system comprises a control unit, a bogie left and right side acquisition unit, a rail side vehicle bottom acquisition unit and a wheel position sensor, the bogie left and right side acquisition units acquire the side surfaces of the walking part; the rail side vehicle bottom collection units are located on the two sides of each steel rail, and full-coverage collection of the bottom of the walking part is achieved; the rail side vehicle bottom collecting unit and the bogie left and right side collecting unit are arranged in a flat mode and comprise sealed box bodies. A visual window is arranged on the surface of the sealed box body, and a filter lens is arranged on the visual window; a camera, a laser and a reflecting lens are arranged in the sealed box body; the cameras and the lasers are in one-to-one correspondence, the reflecting lenses are located under the visual window and located on the side faces of the cameras and the lasers, and light rays of the cameras and the lasers are flattened through the reflecting lenses. According to the utility model, the flat arrangement is realized, and the omnibearing two-dimensional and three-dimensional acquisition and detection of the walking part can be realized.

Description

Technical Field

[0001] This utility model belongs to the field of online fault detection of key components of railway vehicle running gear, such as undercarriage traction device, motor cover, brake shoe or brake disc, gearbox, axle box, bogie braking device, etc. It relates to a running gear detection system, specifically a flattened all-round online detection system for the running gear of an integral track bed. Background Technology

[0002] The running gear refers to the lower part of a locomotive or rolling stock that guides the vehicle along the track and transmits the entire weight of the locomotive or rolling stock to the rails. It includes bogies, wheelsets, axle box lubrication devices, side frames, bolsters, and spring damping devices.

[0003] The running gear is the most important component of a railway vehicle, and the reliability of the bogies directly affects the stability of the train at high speeds, driving safety, and passenger comfort.

[0004] Therefore, the inspection of the running gear is crucial. Identifying and repairing faults can effectively ensure the safety of high-speed trains. Only by having a firm grasp of the characteristics and inspection points of each component of the running gear can we effectively prevent high-speed trains from leaving the depot with faults, thus ensuring passenger safety and stable operation.

[0005] Currently, wheelset inspection sheds are all constructed using an integral track bed method, resulting in relatively low elevations on their upper surfaces. The demand for online running gear inspection started later than that for wheelset online inspection, and since the running gear online inspection equipment needs to be installed on the upper surface of the integral track bed within the wheelset inspection shed, there is a necessitation of providing a running gear bottom online inspection and data acquisition box with sufficient inspection distance and a low installation height to meet this requirement.

[0006] In addition, there are limitations on the reserved space for side detection of the running section, so it is necessary to provide an online detection and acquisition box for the side of the running section with sufficient detection distance and small installation width to meet the requirements.

[0007] At the same time, it is necessary to achieve joint early warning of three-dimensional and two-dimensional images, eliminate false alarms caused by water stains and light, provide decision-making basis for economic maintenance of key vehicle components, and improve the early warning capability in the early stage of fault occurrence.

[0008] In summary, there is an urgent need for a flattened, all-around online inspection system for integral track bed running gear to overcome the aforementioned shortcomings. Summary of the Invention

[0009] The purpose of this utility model is to provide a flattened, all-around online detection system for the running gear of an integral track bed, in order to solve problems such as adapting the data acquisition box of the running gear detection device to the existing integral track bed and improving detection accuracy and efficiency, realizing joint early warning of three-dimensional and two-dimensional images, and eliminating false alarms caused by water stains and light.

[0010] The technical solution of this utility model is:

[0011] A flattened, all-around online detection system for the running gear of an integral track bed includes a control unit and bogie left-side acquisition unit, bogie right-side acquisition unit, railside undercarriage acquisition unit, and wheel position sensors connected to the control unit. The bogie left-side and bogie right-side acquisition units acquire data from the sides of the running gear. The railside undercarriage acquisition units are located on both sides of each rail, achieving full coverage acquisition of the bottom of the running gear. The railside undercarriage acquisition units, bogie left-side acquisition unit, and bogie right-side acquisition unit are all flattened and include a sealed housing. A visualization window is provided on the surface of the sealed housing, and a filter lens is provided on the visualization window. A linear array camera and / or area array camera, a laser, and a reflective lens are provided inside the sealed housing. Each camera and laser corresponds to one camera. The reflective lens is located directly below the visualization window and to the side of the camera and laser. The reflective lens flattens the light from the camera and laser, thereby reducing the height of the sealed housing.

[0012] Furthermore, the sealed box is flattened and has a thickness of 160~240mm; the top of the trackside undercarriage acquisition unit is 150~550mm from the bottom of the running section, and the distance between the bogie left-side acquisition unit and the bogie right-side acquisition unit and the side of the running section is 900~1400mm.

[0013] Furthermore, multiple sets of lasers are arranged inside the sealed box. These multiple sets of lasers are parallel to each other and located below the visualization window, forming multiple line laser planes.

[0014] Furthermore, the camera and laser are located within a range of 150-220mm in the horizontal direction of the reflecting mirror; the tilt angle of the reflecting mirror with respect to the horizontal direction is 20-30 degrees.

[0015] Furthermore, the visualization window is equipped with a dust removal component, the air outlet of which is aligned with the filter lens on the visualization window. The dust removal component is located on the side of the sealed housing and includes a high-pressure fan, a ventilation duct, and a fan controller. The fan controller is connected to the high-pressure fan, and the high-pressure gas from the high-pressure fan is directly connected to the ventilation duct, which is oriented towards the filter lens.

[0016] Furthermore, a window movement protection mechanism is provided above the sealed housing of the trackside undercarriage acquisition unit, including an upper housing cover, a movable door, a movable door connecting rod, a winged electric push rod, and a slide rail slider. The upper housing cover is fixed to the upper surface of the sealed housing, and a shooting window is provided on the upper housing cover at the position corresponding to the visualization window. The movable door is provided on the shooting window. The movable door is connected to the slider, which has sliding and guiding functions, through the movable door connecting rod. The movable door connecting rod is also connected to one end of the winged electric push rod, and the other end of the winged electric push rod is fixed above the sealed housing.

[0017] Furthermore, a protective cover bracket is erected and fixed on the integral track bed, and a protective cover is fixedly fitted on top of the opposite protective cover bracket to protect the trackside undercarriage data acquisition unit. A window is provided on the protective cover.

[0018] Furthermore, the bottom of the protective cover bracket is connected to the mounting base plate via a ball joint screw. The rotation of the ball joint screw allows for adjustment of the horizontality and height of the mounting base plate. The trackside vehicle undercarriage acquisition unit is mounted on the mounting base plate.

[0019] Furthermore, a track-in-the-car-bottom acquisition unit is installed between the two rails, and the structure of the track-in-the-car-bottom acquisition unit is the same as that of the track-side car-bottom acquisition unit.

[0020] Furthermore, the left-side acquisition unit and the right-side acquisition unit of the bogie also include a housing body, a sliding door, a slider, an electric push rod, and a front door of the housing. The sealed housing is installed inside the housing body, and a sliding door is installed outside the sealed housing and inside the front door of the housing. Sliders are installed at the upper and lower ends of the sliding door, and the sliding door is moved by the electric push rod. Windows that are staggered are provided on both the sliding door and the front door of the housing.

[0021] Compared with the prior art, the advantages of this utility model are as follows:

[0022] (1) The flattening of this utility model is applied to the all-round online detection system of the running part of the integral track bed, which includes the bogie left side acquisition unit, bogie right side acquisition unit, track side undercarriage acquisition unit and track center undercarriage acquisition unit set on the integral track bed, which can realize the all-round detection of the bogie of the running part; moreover, the acquisition unit adopts a combination of line array camera and area array camera to realize the acquisition of three-dimensional image and two-dimensional image.

[0023] (2) In order to adapt to the limited space reserved for the inspection of the running part on the integral track bed, the bogie left side acquisition unit, bogie right side acquisition unit, track side undercarriage acquisition unit and track center undercarriage acquisition unit are designed as a whole flat. Furthermore, the camera and laser can be arranged in a flat manner through reflective lenses to effectively reduce the height of the box, so as to meet the requirement of installation on the integral track bed in the existing wheelset online inspection shed and avoid excavating a foundation pit on the existing integral track bed.

[0024] (3) The bogie left side acquisition unit, bogie right side acquisition unit, track side undercarriage acquisition unit, and track center undercarriage acquisition unit have multiple sets of lasers added inside the box to form multiple line laser planes, so the camera can acquire more light cross images, and the data redundancy and effectiveness are improved.

[0025] (4) The left side acquisition unit, right side acquisition unit, railside undercarriage acquisition unit, and rail-center undercarriage acquisition unit have been equipped with a dust removal component, which effectively ensures the cleanliness of the optical lens, extends the maintenance cycle of the optical lens, and makes the light cross-section image acquired by the camera clear and reliable.

[0026] (5) Both the trackside undercarriage acquisition unit and the track-center undercarriage acquisition unit are equipped with a window movement protection mechanism. When acquisition and detection are required, the window movement protection mechanism is opened, and the visualization window is completely unobstructed. When acquisition and detection are not required, the window movement protection mechanism is closed to cover the visualization window, so that the filter lens of the visualization window is not affected by rain, dust and other interferences when not in use.

[0027] The bogie's left-side and right-side acquisition units are equipped with movable doors and a front door for the housing. When testing is required, the three windows overlap; when testing is not required, the three windows are staggered, thus protecting the visualization windows of the acquisition mechanism. Attached Figure Description

[0028] Figure 1 This utility model is a flattened isometric drawing applied to an all-round online detection system for the running gear of an integral track bed.

[0029] Figure 2 This is a plan view of the flattened all-round online detection system for the running gear of an integral track bed, which is based on the present invention.

[0030] Figure 3 for Figure 1 Side view;

[0031] Figure 4 This is an enlarged schematic diagram of the data acquisition unit on the left side of the bogie;

[0032] Figure 5 A schematic diagram showing the installation of the trackside vehicle undercarriage data acquisition unit, the mounting plate for the trackside vehicle undercarriage data acquisition unit, and the protective cover for the trackside vehicle undercarriage data acquisition unit;

[0033] Figure 6 An exploded view of the data acquisition unit under the trackside vehicle;

[0034] Figure 7 Exploded view (looking down) of the data acquisition unit under the trackside vehicle;

[0035] Figure 8An enlarged schematic diagram of the sliding door of the data acquisition unit on the left side of the bogie in the open state;

[0036] Figure 9 This is an enlarged schematic diagram of the sliding door of the left-side data acquisition unit of the bogie in the closed state.

[0037] Among them, 1-left side bogie acquisition unit, 2-right side bogie acquisition unit, 3-railside undercarriage acquisition unit, 4-railside undercarriage acquisition unit mounting base plate, 5-protective cover bracket, 6-ball end screw, 7-railside undercarriage acquisition unit protective cover, 8-rail-center undercarriage acquisition unit, 9-rail-center undercarriage acquisition unit protective cover, 10-control unit, 11-wheel position sensor;

[0038] 101-Box body, 102-Collection mechanism, 103-Sliding door, 104-Slider, 105-Electric push rod, 106-Front door of the box body;

[0039] 31-Lower part of the enclosure, 32-Upper part of the enclosure, 33-Upper cover of the enclosure, 34-Moving door, 35-Moving door linkage, 36-Winged electric push rod, 37-Slide rail slider, 38-Camera, 39-Laser, 310-Reflecting mirror, 311-Powerful fan, 312-Ventilation duct, 313-Fan controller, 314-Fan controller protective cover, 315-Integrated control panel, 316-Visual window. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0041] The flattened design of this embodiment, applied to the all-around online detection system for the running gear of an integral track bed, includes a control unit 10, a bogie left-side acquisition unit 1, a bogie right-side acquisition unit 2, a railside undercarriage acquisition unit 3, a rail-center undercarriage acquisition unit 8, and wheel position sensors 11. The control unit 10 is connected to the bogie left-side acquisition unit 1, bogie right-side acquisition unit 2, railside undercarriage acquisition unit 3, rail-center undercarriage acquisition unit 8, and wheel position sensors 11 via electrical connectors.

[0042] Among them, such as Figure 1 and Figure 2 As shown, the railside undercarriage acquisition unit 3 is located on both sides of the rail (at least one railside undercarriage acquisition unit 3 is set on each side of the left and right rails to achieve full coverage of the bogie bottom images).

[0043] like Figure 5As shown, the protective cover bracket 5 is vertically fixed on the integral track bed. A protective cover 7 for the track side undercarriage data acquisition unit is fixedly fitted onto the upper part of the protective cover bracket 5, and a window is provided on the protective cover 7. The bottom of the protective cover bracket 5 is connected to the undercarriage data acquisition unit mounting plate 4 via a ball joint screw 6. Rotation of the ball joint screw 6 allows adjustment of the horizontality and height of the track side undercarriage data acquisition unit mounting plate 4 according to requirements. The track side undercarriage data acquisition unit 3 is mounted on the track side undercarriage data acquisition unit mounting plate 4.

[0044] like Figure 6 and Figure 7 As shown, the trackside undercarriage acquisition unit 3 has a flat design with a height of 160~240mm. The trackside undercarriage acquisition unit 3 includes a lower part of the housing 31, an upper part of the housing 32, a visualization window 316, a camera 38, a laser 39, a reflective lens 310, a comprehensive control board 315, a high-speed fan 311, a ventilation duct 312, a fan control board 313, and a fan control board protective cover 314.

[0045] The lower part 31, the upper part 32, the viewing window 316, and the electrical connectors are connected or bonded together with fasteners and sealant to form a dustproof and moisture-proof sealed enclosure. The viewing window 316 is located on the upper surface of the upper part 32, and a filter lens is provided on the viewing window 316, that is, the filter lens is located on the upper surface of the sealed enclosure.

[0046] Camera 38, laser 39, reflector 310, and integrated control board 315 are placed in the aforementioned sealed enclosure according to preset positions. The dustproof and moisture-proof functions of the sealed enclosure effectively extend the service life of camera 38 and laser 39. Camera 38 and laser 39 are in a one-to-one correspondence. Figure 6In this embodiment, one is a linear scan camera and the other is an area scan camera (for acquiring 3D and 2D images), both located within a 150-220mm range in the horizontal direction of the reflecting mirror 310. The camera 38 in this embodiment is purchased from Mercury or Hikvision, and the laser 39 is purchased from Snapdragon or Neptunus Sensors. The reflecting mirror 310 is located directly below the visualization window 316, with a tilt angle of 20-30 degrees to the horizontal. The reflecting mirror 310 allows for a flattened arrangement of the camera 38 and laser 39, effectively reducing the height of the sealed enclosure (the vertical height of the camera 38 and laser 39 is much higher than the horizontal height; the camera 38 and laser 39 are perpendicular to the target object, but the reflecting mirror 310 can convert this to a horizontal relationship, effectively reducing the overall height of the enclosure and making it "flattened"). Preferably, multiple sets of lasers 39 are arranged inside the sealed enclosure. These lasers 39 are parallel to each other and located below the visualization window 316, forming multiple linear laser planes. As a result, the camera 38 can acquire more cross-sectional images, improving data redundancy and effectiveness, and further enhancing detection accuracy and efficiency. The integrated control board 315 is a PCB board, which is electrically connected to both the camera 38 and the lasers 39.

[0047] The visualization window 316 is equipped with a dust removal assembly, which is fixed to the sides of the lower part 31 and the upper part 32 of the housing. The assembly includes a high-pressure blower 311, a ventilation duct 312, a blower controller 313, and a blower control board protective cover 314. The blower controller 313 is connected to the high-pressure blower 311, and the high-pressure gas from the high-pressure blower 311 is directly connected to the ventilation duct 312. The ventilation duct 312 is positioned facing the filter lens on the visualization window 316.

[0048] In addition, the trackside undercarriage acquisition unit 3 is also equipped with a window movement protection mechanism, including an upper housing 33, a movable door 34, a movable door connecting rod 35, a winged electric push rod 36, and a slide rail slider 37. The upper housing 33 is fixed to the upper part 32 of the housing, and a shooting window is set on the upper housing 33 at the position corresponding to the visualization window 316. The movable door 34 is set on the shooting window. Figure 7 As shown, the movable door linkage 35 is designed with an L-shaped structure. Its long axis is fixed to the back of the movable door 34, and the end of its short axis moves on the slide rail slider 37. The long axis of the movable door linkage 35 is connected to one end of the winged electric push rod 36, and the other end of the winged electric push rod 36 is fixed to the upper part 32 of the upper housing. The winged electric push rod 36 is set in a direction parallel to the slide rail slider 37. When the winged electric push rod 36 is powered in reverse, the push rod retracts, causing the movable door 34 to slide along the guide direction of the slide rail slider 37 until it reaches its travel distance and stops. At this time, the movable door 34 is in a fully open state; otherwise, it is closed.

[0049] The window movement protection mechanism (winged electric push rod 36), the air blowing and dust removal assembly (specifically the fan controller 313), the camera 38, and the laser 39 are directly or via electrical connectors (such as the integrated control board 315 mentioned above) connected to the control unit 10 to respectively realize the opening and closing protection of the movable door 34, the protection of the filter lens of the visualization window 316 from interference by rain, dust, etc. when not in use, the air blowing and dust removal of the visualization window 316, the image acquisition of the camera 38, and the laser 39 emitting laser light to illuminate the plane.

[0050] Preferably, in order to better achieve full coverage of the bottom of the bogie (to fill in any gaps), the detection system in this embodiment adds a track-center undercarriage acquisition unit 8. The track-center undercarriage acquisition unit 8 is located in the middle of the two rails. The structure of the track-center undercarriage acquisition unit 8 is the same as that of the track-side undercarriage acquisition unit 3 mentioned above, and will not be described again here. The only difference between the two is the shape and the size of the visualization window 316.

[0051] The installation and adjustment methods of the track-center undercarriage acquisition unit 8 and the track-center undercarriage acquisition unit protective cover 9 are the same as those of the track-side undercarriage acquisition unit 3 and the track-side undercarriage acquisition unit protective cover 7: the protective cover bracket is erected and fixed on the integral track bed, and the track-center undercarriage acquisition unit protective cover 9 is fixedly fitted on the upper part of the oppositely set protective cover bracket.

[0052] like Figure 3 As shown, the distance between the top of the trackside undercarriage acquisition unit 3 and the track-center undercarriage acquisition unit 8 and the bottom of the railway train bogie is 150~550mm, preferably 300mm.

[0053] The left-side acquisition unit 1 and right-side acquisition unit 2 of the bogie are fixed to the left and right sides of the integral track bed, respectively. Their detection windows must be more than 2500mm from the center of the track, and the horizontal center of the detection windows must be 400-560mm from the track surface. Because the sides of the bogie also have requirements for the shooting distance, the reserved usable space is relatively narrow. Therefore, the left-side acquisition unit 1 and right-side acquisition unit 2 can be considered as flattened acquisition units in the vertical direction. The distance between the left-side acquisition unit 1 and the right-side acquisition unit 2 and the side of the running gear is 900-1400mm.

[0054] The bogie right-side acquisition unit 2 is mirrored with the bogie left-side acquisition unit 1, and its structure is the same as that of the bogie left-side acquisition unit 1.

[0055] Taking the left-side data acquisition unit 1 of the bogie as an example, such as... Figure 4 As shown, the bogie left side acquisition unit 1 includes a housing 101, an acquisition mechanism 102, a sliding door 103, a slider 104, an electric push rod 105, and a front door 106 of the housing. It has the functions of opening and closing the cabin door 103, emitting lasers, and acquiring images, and is applied to the side of the bogie.

[0056] like Figure 4 , Figure 8 and Figure 9 As shown, a front door 106 is provided on the housing 101, and a window is provided on the front door 106. A data acquisition mechanism 102 is provided inside the housing 101. The structure of the data acquisition mechanism 102 is the same as that of the trackside undercarriage data acquisition unit 3 without the window movement protection mechanism mentioned above (not described again here). A filter lens is also provided on the visualization window of the data acquisition mechanism 102.

[0057] A sliding door 103 is provided on the outside of the acquisition mechanism 102 and inside the front door 106 of the housing. The sliding door 103 serves to protect the visualization window on the acquisition mechanism 102.

[0058] Sliding door 103 has sliders 104 at its upper and lower ends. Under the action of electric push rod 105, the sliders 104 are driven to move the sliding door 103.

[0059] Windows that are staggered are installed on the sliding door 103 and the front door 106 of the enclosure. When the test begins, the sliding door 103 moves until the three windows (the visualization window of the acquisition mechanism 102, the window of the sliding door 103, and the window of the front door 3 of the enclosure) overlap (e.g., Figure 8 As shown); when the sliding door 103 is closed, it moves to the point of obstructing the visualization window on the acquisition mechanism 102 (as shown). Figure 9 (As shown).

[0060] The wheel position sensor 11 is arranged in the direction of train entry, and the wheel position sensor 11 is located at a distance of more than 5m from the trackside undercarriage acquisition unit 3.

[0061] The workflow of the flattening method applied to the all-round online inspection system for the running gear of the integral track bed in this embodiment is as follows:

[0062] When a railway vehicle passes through the detection line, the wheelset of the railway vehicle first triggers the wheel position sensor 11. After receiving the signal of the railway vehicle entering the line, the control unit 10 sends a collection signal to the bogie left side acquisition unit 1, bogie right side acquisition unit 2, trackside undercarriage acquisition unit 3, and track-center undercarriage acquisition unit 8 to prepare them for data collection. That is, the electric push rods in the bogie left side acquisition unit 1, bogie right side acquisition unit 2, trackside undercarriage acquisition unit 3, and track-center undercarriage acquisition unit 8, with the help of the guide rail slider, drive the cabin door to move linearly and open the window movement protection mechanism.

[0063] Secondly, after the railway vehicle enters the track and continues to move, the first wheelset triggers the wheel position sensor 11. After receiving the trigger signal from the wheel position sensor 11, the control unit 10 sends acquisition signals to the bogie left-side acquisition unit 1, bogie right-side acquisition unit 2, trackside undercarriage acquisition unit 3, and track-center undercarriage acquisition unit 8 to start collecting real-time train passing data. Data collection continues while the train is in motion until it goes offline, at which point the collection of real-time train passing data ceases, ultimately collecting all the preset required valid data.

[0064] Finally, after receiving the train offline signal, the control unit 10 restores the system to the state of waiting for the train to enter the line.

[0065] The above description is merely a preferred embodiment of the present utility model and does not constitute a limitation on the scope of protection of the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the scope of protection of the claims of the present utility model.

Claims

1. A flattened, all-around online inspection system for the running gear of an integral track bed, characterized in that, The detection system includes a control unit and bogie left side acquisition unit, bogie right side acquisition unit, railside undercarriage acquisition unit and wheel position sensor connected to the control unit; The bogie left-side acquisition unit and the bogie right-side acquisition unit acquire data from the sides of the running gear; the railside undercarriage acquisition unit is located on both sides of each rail, achieving full coverage acquisition of the bottom of the running gear. The trackside undercarriage acquisition unit, the bogie left-side acquisition unit, and the bogie right-side acquisition unit are all flattened and include a sealed housing. A visualization window is set on the surface of the sealed housing, and a filter lens is set on the visualization window. A linear array camera and / or area array camera, a laser, and a reflective lens are set inside the sealed housing. Each camera and laser corresponds to one camera. The reflective lens is located directly below the visualization window and to the side of the camera and laser. The reflective lens flattens the light from the camera and laser, thereby reducing the height of the sealed housing.

2. The flattened all-around online inspection system for the running gear of an integral track bed as described in claim 1, characterized in that, The sealed box is flattened and has a thickness of 160~240mm; the top of the trackside undercarriage acquisition unit is 150~550mm from the bottom of the running section, and the distance between the bogie left acquisition unit and the bogie right acquisition unit and the side of the running section is 900~1400mm.

3. The flattened all-around online inspection system for the running gear of an integral track bed as described in claim 2, characterized in that, Multiple sets of lasers are installed inside the sealed box. These lasers are parallel to each other and located below the visualization window, forming multiple linear laser planes.

4. The flattened all-around online inspection system for the running gear of an integral track bed as described in claim 3, characterized in that, The camera and laser are located within a range of 150-220mm in the horizontal direction of the reflecting mirror; the tilt angle of the reflecting mirror with respect to the horizontal direction is 20-30 degrees.

5. The flattened all-around online inspection system for the running gear of an integral track bed as described in claim 4, characterized in that, The visualization window is equipped with a dust removal component. The air outlet of the dust removal component is aligned with the filter lens on the visualization window. The dust removal component is located on the side of the sealed box and includes a high-pressure fan, a ventilation duct, and a fan controller. The fan controller is connected to the high-pressure fan, and the high-pressure gas from the high-pressure fan is directly connected to the ventilation duct. The ventilation duct is oriented towards the filter lens.

6. A flattened, all-around online inspection system for the running gear of an integral track bed as described in any one of claims 1-5, characterized in that, The sealing housing of the trackside vehicle undercarriage acquisition unit is equipped with a window movement protection mechanism, which includes an upper housing cover, a movable door, a movable door connecting rod, a winged electric push rod, and a slide rail slider. The upper housing cover is fixed to the upper surface of the sealing housing, and a shooting window is provided on the upper housing cover at the position corresponding to the visualization window. The movable door is provided on the shooting window. The movable door is connected to the slider with sliding and guiding functions through the movable door connecting rod. The movable door connecting rod is also connected to one end of the winged electric push rod, and the other end of the winged electric push rod is fixed above the sealing housing.

7. The flattened all-around online inspection system for the running gear of an integral track bed as described in claim 6, characterized in that, The integral track bed is vertically and fixedly equipped with a protective cover bracket, and a protective cover is fixedly fitted on the top of the opposite protective cover bracket to protect the trackside undercarriage data acquisition unit. A window is provided on the protective cover.

8. The flattened all-around online inspection system for the running gear of an integral track bed as described in claim 7, characterized in that, The bottom of the protective cover bracket is connected to the mounting base plate via a ball joint screw. The rotation of the ball joint screw allows for adjustment of the horizontality and height of the mounting base plate. The trackside vehicle undercarriage acquisition unit is mounted on the mounting base plate.

9. A flattened, all-around online inspection system for the running gear of an integral track bed, as described in any one of claims 1-5, characterized in that... A track-in-the-car-bottom acquisition unit is installed between the two rails, and the structure of the track-in-the-car-bottom acquisition unit is the same as that of the track-side car-bottom acquisition unit.

10. A flattened, all-around online inspection system for the running gear of an integral track bed as described in any one of claims 1-5, characterized in that, The left and right acquisition units of the bogie also include a housing body, a sliding door, a slider, an electric push rod, and a front door of the housing. The sealed housing is set inside the housing body. A sliding door is set outside the sealed housing and inside the front door of the housing. Sliders are set at the upper and lower ends of the sliding door. The sliding door is moved by the electric push rod. Windows that are staggered are set on the sliding door and the front door of the housing.

Images