Railway bridge crack detection device

Abstract

The utility model discloses a railway bridge crack detection device relates to railway bridge detection technical field. The utility model discloses a crossbeam, the crossbeam bottom is provided with horizontal moving mechanism, the horizontal moving mechanism bottom is provided with adjusting mechanism, and the adjusting mechanism bottom is provided with adjustable shooting mechanism, the horizontal moving mechanism includes the support board, and the support board top is fixedly connected with crossbeam bottom, and the support board opposite side is rotatably connected with threaded rod through bearing. The utility model discloses horizontal moving mechanism, adjusting mechanism and adjustable shooting mechanism close cooperation, realized horizontal, vertical direction and the flexible adjustment of multi -angle, broke the limitation of traditional detection mode on the detection range, through accurate position and angle adjustment, can cover each part of railway bridge comprehensively, effectively avoid the omission of crack detection, greatly improved the comprehensiveness and accuracy of detection.

Description

Technical Field

[0001] This utility model belongs to the field of railway bridge inspection technology, and in particular relates to a railway bridge crack detection device. Background Technology

[0002] As a critical infrastructure component of railway transportation, the structural health of railway bridges directly impacts train operation safety. Over long-term use, railway bridges are prone to various defects, with cracks being a common and dangerous one. To ensure the safe operation of railway bridges, regular crack inspections are necessary.

[0003] From a structural and functional perspective, traditional inspection equipment has limited capabilities in adjusting the inspection position and angle. For example, manual inspections are limited by human field of vision and mobility, making it impossible to conduct comprehensive and detailed inspections of hard-to-reach areas of bridges, such as the bridge base and the sides of piers, easily overlooking cracks. Simple inspection tools often lack flexible adjustment mechanisms, failing to precisely adjust to the required inspection position and angle, resulting in incomplete or inaccurate images and affecting crack judgment and analysis. Furthermore, traditional equipment also suffers from instability; after adjusting the inspection position and angle, it is prone to displacement due to external factors, thus affecting the reliability of the inspection results.

[0004] To address this issue, we provide a railway bridge crack detection device. Utility Model Content

[0005] The purpose of this invention is to provide a railway bridge crack detection device. Through the cooperation of a lateral movement mechanism, an adjustment mechanism, and an adjustable imaging mechanism, it solves the problem that existing railway bridge crack detection devices cannot efficiently and accurately detect designated areas.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a crack detection device for railway bridges, comprising a horizontal plate, a lateral moving mechanism at the bottom of the horizontal plate, an adjusting mechanism at the bottom of the lateral moving mechanism, and an adjustable imaging mechanism at the bottom of the adjusting mechanism; the lateral moving mechanism includes a support plate, the top of which is fixedly connected to the bottom of the horizontal plate, a threaded rod movably connected to the opposite side of the support plate via a bearing, a first motor fixedly connected to one side of the support plate, the output end of the first motor fixedly connected to one end of the threaded rod, a threaded sleeve threadedly connected to the surface of the threaded rod, a guide mechanism between the threaded sleeve and the support plate, and a braking mechanism on one side of the guide mechanism; the adjusting mechanism includes a housing. The top of the housing is fixedly connected to the bottom of the threaded sleeve. A servo motor is fixedly connected to the bottom of the inner cavity of the housing. A rotating disk is fixedly connected to the output end of the servo motor. A multi-stage electric telescopic rod is fixedly connected to the bottom of the rotating disk. Through the coordinated work of the lateral movement mechanism, the adjustment mechanism, and the adjustable shooting mechanism, accurate detection of different positions and angles of railway bridges is achieved. The lateral movement mechanism can flexibly adjust the horizontal shooting position. The adjustment mechanism drives the rotating disk and the multi-stage electric telescopic rod through the motor to realize the horizontal rotation and vertical movement of the camera, which greatly expands the detection range. The adjustable shooting mechanism can finely adjust the shooting angle of the camera to ensure the acquisition of high-quality crack images.

[0008] The present invention is further configured such that the guiding mechanism includes a bracket, the top of the bracket is fixedly connected to the bottom of the cross plate, a sliding rod is fixedly connected to the inner wall of the bracket, a sliding sleeve is slidably connected to the surface of the sliding rod, and one side of the sliding sleeve is fixedly connected to a threaded sleeve.

[0009] The present invention is further configured such that the braking mechanism includes an L-shaped plate, the L-shaped plate is fixed to one side of the sliding sleeve, a hydraulic telescopic rod is fixedly connected to the surface of the L-shaped plate, and the output end of the hydraulic telescopic rod passes through the L-shaped plate and is fixedly connected to an anti-slip braking plate.

[0010] The present invention is further configured such that a control box is fixedly connected to one side of the bottom of the inner cavity of the box, and a maintenance plate is fixedly connected to one side of the box by bolts.

[0011] The present invention is further configured such that the adjustable shooting mechanism includes a fixed frame, the top of the fixed frame is fixedly connected to the output end of the electric telescopic rod, the inner wall of the fixed frame is movably connected to a transmission rod through a bearing, a second motor is fixedly connected to one side of the fixed frame, the output end of the second motor is fixedly connected to one end of the transmission rod, and a camera is fixedly connected to the opposite end of the transmission rod.

[0012] The present invention is further configured such that an annular plate is fixedly connected to the top of the rotating disk, and an arc-shaped block is slidably connected to the inner wall of the annular plate, with the top of the arc-shaped block being fixedly connected to the bottom of the box.

[0013] The present invention is further configured such that mounting plates are fixedly connected to both sides of the top of the horizontal plate, and the surface of the mounting plates is provided with evenly distributed mounting holes.

[0014] The present invention has the following beneficial effects.

[0015] 1. The horizontal moving mechanism, adjustment mechanism and adjustable shooting mechanism of this utility model work closely together to realize flexible adjustment in the horizontal, vertical and multi-angle directions, breaking through the limitations of traditional detection methods in terms of detection range. Through precise position and angle adjustment, it can fully cover all parts of railway bridges, effectively avoid omissions in crack detection, and greatly improve the comprehensiveness and accuracy of detection.

[0016] 2. The braking mechanism of this utility model ensures stability after leveling adjustment, the control box can be wirelessly controlled, improving the convenience of operation, the maintenance plate facilitates equipment maintenance, and the mounting plate and mounting holes enhance the adaptability of the equipment to different bridge structures. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a first-view perspective stereoscopic image of a railway bridge crack detection device.

[0019] Figure 2 This is a second-view stereoscopic image of a railway bridge crack detection device.

[0020] Figure 3 This is a three-dimensional view of the lateral movement mechanism in a railway bridge crack detection device.

[0021] Figure 4 This is a schematic diagram of the box being opened in a railway bridge crack detection device.

[0022] Figure 5 This is a three-dimensional view of an adjustable imaging mechanism in a railway bridge crack detection device.

[0023] In the attached diagram: 1. Horizontal plate; 2. Lateral movement mechanism; 3. Adjustment mechanism; 4. Adjustable shooting mechanism; 21. Support plate; 22. Threaded rod; 23. First motor; 24. Threaded sleeve; 25. Guide mechanism; 26. Braking mechanism; 31. Housing; 32. Servo motor; 33. Rotary disk; 34. Multi-stage electric telescopic rod; 251. Bracket; 252. Slide rod; 253. Slide sleeve; 261. L-shaped plate; 262. Hydraulic telescopic rod; 263. Anti-slip brake plate; 5. Control box; 6. Inspection plate; 41. Fixing frame; 42. Second motor; 43. Camera; 7. Circular plate; 8. Arc-shaped block; 9. Mounting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figure 1-5 This utility model is a railway bridge crack detection device, including a horizontal plate 1, a transverse moving mechanism 2 at the bottom of the horizontal plate 1, an adjusting mechanism 3 at the bottom of the transverse moving mechanism 2, and an adjustable shooting mechanism 4 at the bottom of the adjusting mechanism 3; the transverse moving mechanism 2 includes a support plate 21, the top of the support plate 21 is fixedly connected to the bottom of the horizontal plate 1, a threaded rod 22 is movably connected to the opposite side of the support plate 21 via a bearing, a first motor 23 is fixedly connected to one side of the support plate 21, the output end of the first motor 23 is fixedly connected to one end of the threaded rod 22, a threaded sleeve 24 is threadedly connected to the surface of the threaded rod 22, a guide mechanism 25 is provided between the threaded sleeve 24 and the support plate 21, and a braking mechanism 26 is provided on one side of the guide mechanism 25; the adjusting mechanism 3 includes a housing 31, the top of the housing 31 is fixedly connected to the bottom of the threaded sleeve 24, a servo motor 32 is fixedly connected to the bottom of the inner cavity of the housing 31, a rotating disk 33 is fixedly connected to the output end of the servo motor 32, and a multi-stage electric telescopic rod 34 is fixedly connected to the bottom of the rotating disk 33.

[0026] Specifically, through the coordinated operation of the lateral movement mechanism 2, the adjustment mechanism 3, and the adjustable shooting mechanism 4, precise detection of railway bridges at different positions and angles is achieved. The lateral movement mechanism 2 can flexibly adjust the horizontal shooting position. The adjustment mechanism 3, through the motor-driven rotating disk 33 and multi-stage electric telescopic rod 34, realizes the horizontal rotation and vertical movement of the camera 43, greatly expanding the detection range. The adjustable shooting mechanism 4 can fine-tune the shooting angle of the camera 43 to ensure the acquisition of high-quality crack images. The overall design optimizes the detection process in many aspects, improves the practicality and detection accuracy of the detection device. The first motor 23 is a Y132M-4 type three-phase asynchronous motor; the servo motor 32 is a Y90L-4 type three-phase asynchronous motor; and the second motor 42 is a small DC geared motor.

[0027] The guiding mechanism 25 includes a bracket 251, the top of which is fixedly connected to the bottom of the horizontal plate 1. A slide rod 252 is fixedly connected to the inner wall of the bracket 251, and a sliding sleeve 253 is slidably connected to the surface of the slide rod 252. One side of the sliding sleeve 253 is fixedly connected to a threaded sleeve 24. The braking mechanism 26 includes an L-shaped plate 261, which is fixed to one side of the sliding sleeve 253. A hydraulic telescopic rod 262 is fixedly connected to the surface of the L-shaped plate 261. The output end of the hydraulic telescopic rod 262 passes through the L-shaped plate 261 and is fixedly connected to an anti-slip brake plate 263. A control box 5 is fixedly connected to one side of the bottom of the inner cavity of the housing 31. One side of the housing 31 is fixedly connected by bolts. The adjustable shooting mechanism 4 includes a maintenance plate 6 and a fixed frame 41. The top of the fixed frame 41 is fixedly connected to the output end of the electric telescopic rod. A transmission rod is movably connected to the inner wall of the fixed frame 41 through a bearing. A second motor 42 is fixedly connected to one side of the fixed frame 41. The output end of the second motor 42 is fixedly connected to one end of the transmission rod. A camera 43 is fixedly connected to the opposite end of the transmission rod. An annular plate 7 is fixedly connected to the top of the rotating disk 33. An arc-shaped block 8 is slidably connected to the inner wall of the annular plate 7. The top of the arc-shaped block 8 is fixedly connected to the bottom of the box 31. Mounting plates 9 are fixedly connected to both sides of the top of the horizontal plate 1. The surface of the mounting plates 9 has evenly distributed mounting holes.

[0028] Specifically: The guide mechanism 25, through the cooperation of the sliding rod 252 and the sliding sleeve 253, provides stable guidance for the lateral movement of the threaded sleeve 24, ensuring the smoothness and accuracy of the lateral movement mechanism 2, thereby improving the reliability of the entire detection device in the horizontal direction adjustment, enabling the camera 43 to accurately move to the designated horizontal detection position. The braking mechanism 26 uses the hydraulic telescopic rod 262 to push the anti-slip brake plate 263 to contact the bracket 251 for braking. Compared with other braking methods, hydraulic braking can provide a larger and more stable braking force, ensuring that the device will not shift due to external interference after horizontal position adjustment, effectively improving the stability after horizontal adjustment, and providing a guarantee for obtaining accurate detection images. The control box 5 facilitates centralized control of all components of the entire detection device and can be remotely controlled wirelessly. Operators can easily operate the motor, electric telescopic rod, and hydraulic telescopic rod 262 through the control box 5, improving the ease of operation of the equipment. The inspection plate 6 is fixed to one side of the box 31 with bolts, making it easy to disassemble and convenient for maintenance personnel. The internal components are inspected and maintained by personnel, reducing the difficulty of equipment maintenance and improving its maintainability. The adjustable shooting mechanism 4 drives the transmission rod and camera 43 through the second motor 42, which can precisely adjust the shooting angle of the camera 43. This allows the detection device to flexibly adjust the shooting angle according to the actual situation of the bridge cracks, obtain the best crack image, help to analyze the crack characteristics more accurately, and improve the pertinence and accuracy of the detection. The cooperation between the annular plate 7 and the arc block 8 plays a role in stabilizing support and guiding during the rotation of the rotating disk 33, ensuring the smoothness and accuracy of the rotation of the rotating disk 33. This allows the camera 43 to remain stable when performing horizontal rotation shooting, improving the reliability of horizontal rotation shooting and ensuring that the railway bridge can be photographed and inspected comprehensively and without blind spots. The mounting plate 9 and mounting holes provide multiple installation methods. The detection device can be installed in a suitable position according to the different structural characteristics and detection requirements of the railway bridge, enhancing the adaptability and versatility of the equipment, and enabling the detection device to be widely used in crack detection work of various types of railway bridges.

[0029] The working principle of this utility model is as follows: The first motor 23 in the lateral movement mechanism 2 is activated. The output shaft of the first motor 23 drives the threaded rod 22 to rotate on the bearings on the opposite side of the support plate 21. Since the threaded rod 22 and the threaded sleeve 24 are threadedly connected, the threaded sleeve 24 will move laterally along the threaded rod 22 between the support plates 21. In the guide mechanism 25, the sliding rod 252 is fixed to the inner wall of the bracket 251, and the sliding sleeve 253 slides on the surface of the sliding rod 252. One side of the sliding sleeve 253 is connected to the threaded sleeve 24, which ensures the smooth lateral movement of the threaded sleeve 24. Stability and straightness are ensured, thereby enabling adjustment of the horizontal shooting position. When the threaded sleeve 24 moves to the desired horizontal position, the braking mechanism 26 starts to work. The hydraulic telescopic rod 262 of the braking mechanism 26 extends. A single-acting piston-type hydraulic telescopic rod 262 is selected to push the anti-slip brake plate 263 into contact with the bracket 251. By increasing the friction, the threaded sleeve 24 is fixed in the current position, improving the stability after horizontal adjustment and preventing the shooting effect from being affected by the movement of the device during shooting. The servo motor 32 of the adjustment mechanism 3 drives... The rotating disk 33 rotates. Since the annular plate 7 at the top of the rotating disk 33 is slidably connected to the arc-shaped block 8 at the bottom of the box 31, the stability of the rotating disk 33 is ensured. When the rotating disk 33 rotates, it drives the multi-stage electric telescopic rod 34 fixed at its bottom and the adjustable shooting mechanism 4 below to rotate 360 ​​degrees horizontally together, so that the camera 43 can shoot the railway bridge from all directions. The multi-stage electric telescopic rod 34 adopts a multi-stage sleeve electric telescopic rod to achieve a large stroke of vertical movement. Through the telescopic action, it drives the fixed frame 41 and the camera 43 on the fixed frame 41 to move vertically, effectively expanding the working space of the camera 43, so that it can cover the area at different heights of the railway bridge, which is convenient for detecting cracks in different parts of the bridge. The second motor 42 of the adjustable shooting mechanism 4 starts. A small DC geared motor is adopted. Its output end drives the transmission rod to rotate on the bearing on the inner wall of the fixed frame 41, which in turn causes the camera 43 at the other end of the transmission rod to rotate, realizing the adjustment of the shooting angle of the camera 43, so as to capture the image of the bridge crack more accurately.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A railway bridge crack detection device, comprising a horizontal plate (1), characterized in that: The bottom of the horizontal plate (1) is provided with a horizontal moving mechanism (2), the bottom of the horizontal moving mechanism (2) is provided with an adjustment mechanism (3), and the bottom of the adjustment mechanism (3) is provided with an adjustable shooting mechanism (4). The lateral moving mechanism (2) includes a support plate (21), the top of which is fixedly connected to the bottom of the horizontal plate (1). A threaded rod (22) is movably connected to the opposite side of the support plate (21) via a bearing. A first motor (23) is fixedly connected to one side of the support plate (21). The output end of the first motor (23) is fixedly connected to one end of the threaded rod (22). A threaded sleeve (24) is threadedly connected to the surface of the threaded rod (22). A guide mechanism (25) is provided between the threaded sleeve (24) and the support plate (21). A braking mechanism (26) is provided on one side of the guide mechanism (25). The adjustment mechanism (3) includes a housing (31), the top of which is fixedly connected to the bottom of a threaded sleeve (24), a servo motor (32) is fixedly connected to the bottom of the inner cavity of the housing (31), a rotating disk (33) is fixedly connected to the output end of the servo motor (32), and a multi-stage electric telescopic rod (34) is fixedly connected to the bottom of the rotating disk (33).

2. The railway bridge crack detection device according to claim 1, characterized in that: The guide mechanism (25) includes a bracket (251), the top of the bracket (251) is fixedly connected to the bottom of the horizontal plate (1), a slide rod (252) is fixedly connected to the inner wall of the bracket (251), a sliding sleeve (253) is slidably connected to the surface of the slide rod (252), and one side of the sliding sleeve (253) is fixedly connected to the threaded sleeve (24).

3. The railway bridge crack detection device according to claim 2, characterized in that: The braking mechanism (26) includes an L-shaped plate (261), which is fixed to one side of the sliding sleeve (253). A hydraulic telescopic rod (262) is fixedly connected to the surface of the L-shaped plate (261). The output end of the hydraulic telescopic rod (262) passes through the L-shaped plate (261) and is fixedly connected to an anti-slip brake plate (263).

4. The railway bridge crack detection device according to claim 1, characterized in that: A control box (5) is fixedly connected to one side of the bottom of the inner cavity of the box (31), and a maintenance plate (6) is fixedly connected to one side of the box (31) by bolts.

5. A railway bridge crack detection device according to claim 1, characterized in that: The adjustable shooting mechanism (4) includes a fixed frame (41), the top of the fixed frame (41) is fixedly connected to the output end of the electric telescopic rod, the inner wall of the fixed frame (41) is movably connected to a transmission rod through a bearing, a second motor (42) is fixedly connected to one side of the fixed frame (41), the output end of the second motor (42) is fixedly connected to one end of the transmission rod, and a camera (43) is fixedly connected to the opposite end of the transmission rod.

6. The railway bridge crack detection device according to claim 1, characterized in that: The top of the rotating disk (33) is fixedly connected to an annular plate (7), and the inner wall of the annular plate (7) is slidably connected to an arc-shaped block (8). The top of the arc-shaped block (8) is fixedly connected to the bottom of the box (31).

7. A railway bridge crack detection device according to claim 1, characterized in that: Mounting plates (9) are fixedly connected to both sides of the top of the horizontal plate (1), and the mounting plates (9) have evenly distributed mounting holes on their surfaces.

Images