A detection device for the roof of a railcar
The vision inspection device driven by electric push rods and servo motors solves the problem of full coverage of the roofs of different vehicle models by traditional inspection equipment, and achieves efficient and accurate roof inspection, reducing the missed inspection rate and the risk of high-altitude operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY CONSTR ELECTRIFICATION BUREAU GRP CO LTD
- Filing Date
- 2026-06-23
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional manual vehicle inspection is inefficient, high-altitude operations are risky, and the rate of missed detection is unstable. Existing automated equipment has limited installation height and poor detection accuracy, especially for the roof corners and hidden parts of different vehicle models.
The position and angle of the vision inspection camera are adjusted by using a first electric push rod and a second electric push rod, and the detection angle is adjusted by using a servo motor to drive the housing, so as to achieve full coverage close-range detection of the roof of different vehicle models.
It effectively reduces the rate of missed inspections of roof components, improves the accuracy and comprehensiveness of inspections, adapts to different vehicle models, and reduces the risks of working at heights.
Smart Images
Figure CN224581422U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of train inspection equipment, and in particular to an inspection device for the roof of a railcar. Background Technology
[0002] During the daily return inspection of trains to the depot, a systematic condition check is required for the key systems on the roof of various rail vehicles such as electric locomotives and EMUs. The scope of the inspection covers core components that are prone to wear, aging, or foreign object intrusion, such as pantographs, high-voltage insulators, surge arresters, roof busbars, and cover plate seals. Traditional manual vehicle inspection suffers from low efficiency, high-risk high-altitude operations, and unstable missed detection rates. Therefore, it is necessary to use automated visual inspection equipment, such as the Chinese utility model patent with publication number CN206002459U: a dynamic detection system for train roof images. This dynamic detection system includes a mounting bracket fixed above the train track and a 3D imaging component fixed on the mounting bracket. The 3D imaging component is used to capture images of the train roof. This fixed-point dynamic detection system for train roofs is fixed at a single position above the track. The installation angle and height of the 3D imaging component are not adjustable. For vehicles of different heights and widths, hidden parts such as the corners of the roof and the bottom of the pantograph are prone to missed detection. Furthermore, the connection between the electrification lines and the pantograph and the overhead contact line affects the installation position of the equipment, resulting in a relatively high overall installation height and affecting the accuracy of visual inspection. Utility Model Content
[0003] The purpose of this utility model is to provide a railcar roof inspection device. The first electric push rod and the second electric push rod adjust the position and angle of the visual inspection camera, which can be adapted to the roofs of various car models to achieve close-range full-coverage inspection, effectively reduce the missed inspection rate of roof components, and effectively solve the problems in the background art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A railcar roof inspection device includes a column, a base fixedly connected to the lower end of the column, a first electric push rod rotatably connected to the upper end of the column, a second electric push rod rotatably connected to the front side of the column, a connecting shaft seat fixedly connected to the lower end of the first electric push rod, the connecting shaft seat being rotatably connected to one end of the push rod of the second electric push rod, a fixing flange fixedly connected to the end of the first electric push rod away from the column, a first mounting flange fixedly connected to one end of the push rod of the first electric push rod, a second mounting flange fixedly connected to the front side of the first mounting flange via multiple guide rods, a servo motor fixedly connected between the first mounting flange and the second mounting flange, a housing rotatably connected to the front side of the second mounting flange, the output shaft of the servo motor passing through the second mounting flange and fixedly connected to the housing, and a vision inspection camera fixedly connected inside the housing.
[0005] As a further preferred embodiment of this utility model, the first electric push rod, the second electric push rod, the second mounting flange, and the vision inspection camera are electrically connected to an external main controller. The first electric push rod can control the horizontal extension distance of the vision inspection camera, and the second electric push rod controls the pitch angle of the first electric push rod, ensuring that the vision inspection camera is compatible with the roof height and width of different vehicle models. By adjusting the vertical height, horizontal extension distance, and detection intersection point of the vision inspection camera relative to the roof, full-coverage close-range detection of the roof of different types of railcars can be achieved.
[0006] As a further preferred embodiment of this utility model, a connecting seat is fixedly connected to the push rod end of the first electric push rod, and the connecting seat is used to provide a foundation for the connection of the first mounting flange.
[0007] As a further preferred embodiment of this utility model, a plurality of guide sleeves are fixedly connected to the outer circumferential side of the fixed flange. The guide sleeves have self-lubricating properties, which can improve the movement stability of the plurality of guide rods along the length direction of the first electric push rod.
[0008] As a further preferred embodiment of this utility model, a connecting sleeve is fixedly connected to the side of the first mounting flange facing the first electric push rod. The connecting sleeve is fixedly connected to the connecting seat. One end of each of the multiple guide rods is inserted into the corresponding guide sleeve. When the push rod in the first electric push rod is connected to the first mounting flange through the connecting seat and the connecting sleeve, it can push the entire first mounting flange, second mounting flange, servo motor, housing, and vision inspection camera assembly to a horizontal position on the roof of the vehicle.
[0009] As a further preferred embodiment of this utility model, the second mounting flange is symmetrically fixedly connected to two fixing pins on the side opposite to the first mounting flange, and the ends of the fixing pins are engaged with snap rings.
[0010] As a further preferred embodiment of this utility model, two second adjustment grooves are symmetrically formed inside the housing. The second adjustment grooves are slidably connected to corresponding fixing pins. Two first connecting lugs and two second connecting lugs are fixedly connected to the side of the housing away from the second mounting flange. The second connecting lugs are provided with first adjustment grooves. One end of the vision inspection camera is fixedly connected between the two first connecting lugs, and the other end is fixedly connected between the two second connecting lugs. The output shaft of the servo motor can drive the housing angle adjustment, thereby adjusting the detection angle of the vision inspection camera.
[0011] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the second electric push rod drives the first electric push rod to adjust the pitch angle. The first electric push rod can drive the vision inspection camera to adjust the horizontal extension distance. In conjunction with the servo motor driving the housing, the vision inspection camera rotates to adjust the detection angle. It is suitable for railcar models of different heights and widths, and can perform close-range detection of hidden parts such as the corners of the car roof and the bottom of the pantograph. The installation position is not limited by the contact wire, effectively improving the accuracy and comprehensiveness of the roof inspection. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the first electric push rod, the first mounting flange, and the second mounting flange of this utility model. Figure 3 This is a schematic diagram of the first mounting flange structure of this utility model; Figure 4 This is a schematic diagram of the second mounting flange structure of this utility model; Figure 5 This is a schematic diagram of the main structure of this utility model in application.
[0013] In the diagram: 1. Column; 2. Base; 3. First electric push rod; 4. Second electric push rod; 5. Connecting shaft seat; 6. Fixed flange; 7. First mounting flange; 8. Second mounting flange; 9. Servo motor; 10. Housing; 11. Vision inspection camera; 12. Connecting seat; 13. Guide sleeve; 14. Guide rod; 15. Connecting sleeve; 16. Fixing pin; 17. First connecting ear; 18. Second connecting ear; 19. First adjusting slide; 20. Second adjusting slide. Detailed Implementation
[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0015] like Figures 1-5 As shown, the present invention provides a railcar roof inspection device, including a column 1, a base 2 fixedly connected to the lower end of the column 1, a first electric push rod 3 rotatably connected to the upper end of the column 1, a second electric push rod 4 rotatably connected to the front side of the column 1, a connecting shaft seat 5 fixedly connected to the lower end of the first electric push rod 3, the connecting shaft seat 5 rotatably connected to one end of the push rod of the second electric push rod 4, a fixing flange 6 fixedly connected to the end of the first electric push rod 3 away from the column 1, a first mounting flange 7 fixedly connected to one end of the push rod of the first electric push rod 3, a second mounting flange 8 fixedly connected to the front side of the first mounting flange 7 via multiple guide rods 14, a servo motor 9 fixedly connected between the first mounting flange 7 and the second mounting flange 8, a housing 10 rotatably connected to the front side of the second mounting flange 8, the output shaft of the servo motor 9 passing through the second mounting flange 8 and fixedly connected to the housing 10, and a vision inspection camera 11 fixedly connected inside the housing 10.
[0016] like Figure 1 As shown, the first electric push rod 3, the second electric push rod 4, the second mounting flange 8, and the vision inspection camera 11 are electrically connected to the external main controller. The first electric push rod 3 can control the horizontal extension distance of the vision inspection camera 11, and cooperate with the second electric push rod 4 to control the pitch angle of the first electric push rod 3, ensuring that the vision inspection camera 11 is adapted to the roof height and width of different vehicle models. By adjusting the vertical height, horizontal extension distance, and detection intersection point of the vision inspection camera 11 relative to the roof, full-coverage close-range detection of the roof of different types of railcars can be achieved.
[0017] like Figures 2-4As shown, a connecting seat 12 is fixedly connected to the end of the push rod of the first electric push rod 3. The connecting seat 12 provides a foundation for the connection of the first mounting flange 7. Multiple guide sleeves 13 are fixedly connected circumferentially to the outer side of the fixed flange 6. The guide sleeves 13 have self-lubricating properties, which can improve the stability of the movement of multiple guide rods 14 along the length direction of the first electric push rod 3. A connecting sleeve 15 is fixedly connected to the side of the first mounting flange 7 facing the first electric push rod 3. The connecting sleeve 15 is fixedly connected to the connecting seat 12. One end of each of the multiple guide rods 14 is inserted into the corresponding guide sleeve 13. When the push rod in the first electric push rod 3 is connected to the first mounting flange 7 through the connecting seat 12 and the connecting sleeve 15, it can push the entire first mounting flange 7, second mounting flange 8, servo motor 9, housing 10, and vision inspection phase. The machine 11 assembly is positioned horizontally on the roof. Two fixing pins 16 are symmetrically fixed to the side of the second mounting flange 8 opposite to the first mounting flange 7. The ends of the fixing pins 16 are engaged with snap rings. Two second adjusting slides 20 are symmetrically opened inside the housing 10. The second adjusting slides 20 are slidably connected to the corresponding fixing pins 16. Two first connecting lugs 17 and two second connecting lugs 18 are fixedly connected to the side of the housing 10 opposite to the second mounting flange 8. The second connecting lugs 18 have first adjusting slides 19. One end of the vision inspection camera 11 is fixedly connected between the two first connecting lugs 17, and the other end is fixedly connected between the two second connecting lugs 18. The output shaft of the servo motor 9 can drive the housing 10 to adjust the angle, thereby adjusting the detection angle of the vision inspection camera 11.
[0018] It should be noted that this utility model is a railcar roof inspection device. Before inspection, the operator sends a control command to the second electric push rod 4 through an external main controller according to the model parameters of the train to be inspected. The push rod of the second electric push rod 4 performs a telescopic action, driving the first electric push rod 3 to adjust the pitch angle around the rotation connection point at the upper end of the column 1, adjusting the first electric push rod 3 to an angle that perfectly matches the roof height of the train model. Subsequently, the external main controller controls the push rod of the first electric push rod 3 to complete the extension or retraction action, driving the first mounting flange 7, the second mounting flange 8, the servo motor 9, the housing 10, and the vision inspection device. The detection module consisting of cameras 11 moves along the axis of the first electric push rod 3 to set the optimal close-range detection distance between the visual inspection camera 11 and the roof. Finally, the servo motor 9 receives the control signal to drive the housing 10 to rotate, adjusting the visual inspection camera 11 to the preset circumferential detection angle (while the first adjustment slide 19 and the second adjustment slide 20 are manually fine-tuned in advance to adjust the pitch angle of the visual inspection camera 11). After the pre-adjustment is completed, the train to be inspected passes through the inspection station at a low and uniform speed. The visual inspection camera 11 continuously takes pictures of the roof according to the preset parameters and transmits the image data to the external main controller to complete the defect analysis.
[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A railcar roof detection apparatus, characterized by: Includes a column (1), the lower end of which is fixedly connected to a base (2), the upper end of which is rotatably connected to a first electric push rod (3), the front side of which is rotatably connected to a second electric push rod (4), the lower end of which is fixedly connected to a connecting shaft seat (5), and the connecting shaft seat (5) is rotatably connected to one end of the push rod of the second electric push rod (4); The first electric push rod (3) is fixedly connected to a fixed flange (6) at one end away from the column (1), and the push rod end of the first electric push rod (3) is fixedly connected to a first mounting flange (7). The front side of the first mounting flange (7) is fixedly connected to a second mounting flange (8) through multiple guide rods (14). A servo motor (9) is fixedly connected between the first mounting flange (7) and the second mounting flange (8). The front side of the second mounting flange (8) is rotatably connected to a housing (10). The output shaft of the servo motor (9) passes through the second mounting flange (8) and is fixedly connected to the housing (10), and a vision inspection camera (11) is fixedly connected inside the housing (10).
2. A railcar roof detection device as defined in claim 1, wherein: The first electric push rod (3), the second electric push rod (4), the second mounting flange (8) and the vision inspection camera (11) are electrically connected to the external main controller.
3. A railcar roof detection apparatus as defined in claim 1, wherein: The first electric push rod (3) has a connecting seat (12) fixedly connected to its push rod end.
4. The railcar roof detection device according to claim 3, characterized in that: The fixed flange (6) is circumferentially fixedly connected to multiple guide sleeves (13).
5. A railcar roof detection apparatus as defined in claim 1, wherein: The first mounting flange (7) is fixedly connected to a connecting sleeve (15) on the side facing the first electric push rod (3). The connecting sleeve (15) is fixedly connected to the connecting seat (12), and one end of each of the multiple guide rods (14) is inserted into the corresponding guide sleeve (13).
6. A railcar roof detection apparatus as defined in claim 1, wherein: The second mounting flange (8) is symmetrically fixedly connected to two fixing pins (16) on the side opposite to the first mounting flange (7), and the ends of the fixing pins (16) are engaged with snap rings.
7. A railcar roof detection apparatus as defined in claim 6, wherein: Two second adjustment grooves (20) are symmetrically provided inside the housing (10). The second adjustment grooves (20) are slidably connected to the corresponding fixing pins (16). Two first connecting lugs (17) and a second connecting lug (18) are fixedly connected to the side of the housing (10) away from the second mounting flange (8). The second connecting lug (18) is provided with a first adjustment groove (19). One end of the visual inspection camera (11) is fixedly connected between the two first connecting lugs (17), and the other end is fixedly connected between the two second connecting lugs (18).