An integrated rail weld comprehensive detector

Abstract

The utility model relates to the field of weld flaw detection technology discloses a kind of integrated rail weld comprehensive flaw detector, including rail, and the walking plate moving on rail, the top of walking plate is equipped with bin cover by bolt, the both sides of walking plate top are equipped with walking assembly moving on rail, the bottom of walking plate and located the both sides of rail are equipped with flaw detection main part.The integrated rail weld comprehensive flaw detector, the setting of two walking assemblies makes flaw detection main body independently along rail track travel, without artificial push or carry, can automatically walk to each weld place and complete detection task in turn, reduce the labor intensity of detection personnel, improve the detection efficiency, simultaneously, through flaw detection probe horizontal, longitudinal lifting movement, and can be to the angle longitudinal adjustment of flaw detection probe where, can carry out multi-end surface detection to rail weld, improve the comprehensiveness of detection, and adopt integrated design, convenient for detection personnel to carry and operate, improve the portability and practicality of equipment.

Description

Technical Field

[0001] This utility model relates to the field of weld flaw detection technology, and in particular to an integrated rail weld flaw detector. Background Technology

[0002] In the railway transportation sector, the quality of rail welds directly affects the safety and stability of railway lines. With the rapid development of high-speed railways and the widespread laying of seamless rail tracks, the number of rail weld joints has increased dramatically, and weld damage has become one of the most significant types of damage to railway mainlines. Therefore, comprehensive and efficient inspection of rail welds is crucial.

[0003] Currently, most existing rail weld flaw detection equipment is operated manually or semi-automatically, and cannot achieve self-driven movement. It requires manual pushing or carrying of the equipment along the rail, which is not only labor-intensive but also inefficient. Secondly, manual operation makes it difficult to ensure that the flaw detector scans the weld at a constant speed and with a stable posture, resulting in poor stability and repeatability of the detection data. This can easily lead to missed detections or misjudgments due to human factors, creating potential safety hazards. Furthermore, for each weld, the operator must manually adjust the equipment position and align it with the weld, making it impossible to achieve automated and continuous batch inspection. Utility Model Content

[0004] In view of the problem that existing flaw detectors cannot achieve automated and continuous batch testing, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide an integrated rail weld flaw detector, which aims to achieve fully automated detection, greatly improve efficiency and reduce labor intensity.

[0006] To solve the above technical problems, this utility model provides the following technical solution: an integrated rail weld flaw detector, including a rail and a traveling plate that moves on the rail. A cover is bolted to the top of the traveling plate, and traveling components that move on the rail are installed on both sides of the top of the traveling plate. Flaw detector bodies are installed at the bottom of the traveling plate and on both sides of the rail. The walking assembly includes a walking wheel fixed to the center of the bottom of the walking plate, and U-shaped frames located on both sides of the walking wheel. At the same time, the two U-shaped frames move towards the center or the sides simultaneously. A servo motor is fixed inside the U-shaped frame, and a drive wheel is fixed to the drive end of the servo motor.

[0007] As an improved technical solution, the walking assembly also includes a dual-axis motor installed at the top center of the walking plate. Both drive ends of the dual-axis motor are equipped with lead screws. T-blocks are threaded onto the lead screws, and U-shaped frames are fixed to the bottom of the T-blocks. One end face of the T-block has a threaded hole that is threaded to the lead screw. Limiting channels for the T-blocks to pass through and slide are provided at the four corners of the top of the walking plate.

[0008] As an improved technical solution, the T-shaped block has a sliding hole at one end near the U-shaped frame, and a light rod is slidably mounted on the T-shaped block through the sliding hole. The two ends of the light rod are fixed to the bottom of the walking plate by a rod frame.

[0009] As an improved technical solution, the flaw detection body includes an L-shaped frame fixed to the bottom of the walking plate, a linear motor fixed on the L-shaped frame, a platform installed on the movable end of the linear motor, an electric telescopic rod installed on the top of the platform, and a flaw detection probe installed on the movable end of the electric telescopic rod.

[0010] As an improved technical solution, the movable end of the electric telescopic rod is fixed with a motor frame, a micro motor is installed inside the motor frame, the drive end of the micro motor is fixedly connected to a rotating connecting block, and a disc is welded to the flat end of the rotating connecting block.

[0011] As an improved technical solution, the disc is provided with two sleeves on one end face near the flaw detection probe, and the flaw detection probe is clamped between the two sleeves. At the same time, one of the sleeves is welded to one end face of the disc, and the other sleeve is detachably installed at the bottom of the sleeve by bolts.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are: 1. This utility model uses a servo motor to drive the drive wheel to rotate. Under the action of friction between the drive wheel and the outer wall of the rail, the traveling plate moves linearly along the rail, which can drive the flaw detection body to move linearly along the direction of the rail, and move the flaw detection body to different weld seams for inspection. At the same time, no manual pushing is required, saving time and effort and improving efficiency. Furthermore, the distance between the two drive wheels on the traveling assembly is adjustable. On the one hand, it can make the drive wheel fit tightly against the outer wall of the rail, and on the other hand, it can effectively clamp rails of different sizes, improving adaptability.

[0013] 2. This utility model adjusts the distance between the flaw detection probe and the weld by extending and retracting the electric telescopic rod, allowing the flaw detection probe to be in close contact with the weld for inspection. The flaw detection probe moves longitudinally along the rail web where it is in contact with the weld, increasing the inspection area of ​​the weld. At the same time, the rotating connecting block is rotated by a micro motor, which adjusts the angle of the flaw detection probe longitudinally. The angle of the flaw detection probe is adapted to different positions on the rail web, ensuring that the flaw detection probe is closely aligned and in contact with the rail web, thus improving the inspection effect.

[0014] 3. This utility model, through the setting of two walking components, enables the flaw detection body to move autonomously along the rail track without manual pushing or carrying. It can automatically walk to each weld and complete the inspection task in sequence, reducing the labor intensity of the inspection personnel and improving the inspection efficiency. At the same time, through the horizontal and vertical lifting and lowering movement of the flaw detection probe, and the longitudinal adjustment of the angle of the flaw detection probe, multi-face inspection of rail welds can be performed, improving the comprehensiveness of the inspection. Moreover, the integrated design makes it easy for the inspection personnel to carry and operate, improving the portability and practicality of the equipment. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of an integrated rail weld flaw detector according to this utility model.

[0016] Figure 2 This is a schematic diagram of the walking component of an integrated rail weld flaw detector according to this utility model.

[0017] Figure 3 This is a schematic diagram of the main body of the integrated rail weld flaw detector of this utility model.

[0018] Explanation of reference numerals in the attached figures: 1. Walking plate; 2. Compartment cover; 3. Walking assembly; 31. Walking wheel; 32. Dual-axis motor; 33. T-block; 34. Lead screw; 35. Limiting channel; 36. Smooth rod; 37. U-shaped frame; 38. Drive wheel; 39. Servo motor; 4. Flaw detector body; 41. L-shaped frame; 42. Linear motor; 43. Stand; 44. Electric telescopic rod; 45. Motor frame; 46. Micro motor; 47. Disc; 48. Flaw detector probe; 49. Jacket; 410. Rotary connecting block. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1

[0020] Reference Figures 1-3 This is the first embodiment of the present invention, which provides an integrated rail weld flaw detector. This integrated rail weld flaw detector includes a rail and a traveling plate 1 that moves on the rail. A cover 2 is bolted to the top of the traveling plate 1. Traveling components 3 that move on the rail are installed on both sides of the top of the traveling plate 1. Flaw detector bodies 4 are installed at the bottom of the traveling plate 1 and on both sides of the rail. The walking assembly 3 includes a walking wheel 31 fixed at the bottom center of the walking plate 1, and U-shaped frames 37 located on both sides of the walking wheel 31. At the same time, the two U-shaped frames 37 move towards the center or the sides. A servo motor 39 is fixed inside the U-shaped frame 37, and the drive end of the servo motor 39 is located below the U-shaped frame 37. A drive wheel 38 is fixed to the drive end of the servo motor 39.

[0021] The walking assembly 3 also includes a dual-axis motor 32 installed at the top center of the walking plate 1. Both drive ends of the dual-axis motor 32 are equipped with lead screws 34, and both ends of the lead screws 34 are rotatably mounted on the top of the walking plate 1 through bearings. T-blocks 33 are threadedly installed on the lead screws 34, and U-shaped frames 37 are fixed to the bottom of the T-blocks 33. One end face of the T-blocks 33 is provided with a threaded hole that is threadedly connected to the lead screws 34. Limiting channels 35 are provided at the four corners of the top of the walking plate 1 for the T-blocks 33 to pass through and slide.

[0022] The drive wheel 38 is driven by the servo motor 39 to rotate. Under the action of the friction between the drive wheel 38 and the outer wall of the rail, the walking plate 1 moves linearly along the rail, which can drive the flaw detection body 4 to move linearly along the direction of the rail. The flaw detection body 4 is moved to different weld seams for inspection. At the same time, no manual pushing is required, saving time and effort and improving efficiency. In addition, the distance between the two drive wheels 38 on the walking assembly 3 is adjustable. On the one hand, the drive wheel 38 can be closely attached to the outer wall of the rail. On the other hand, it can be adapted to the effective clamping of rails of different sizes, improving adaptability.

[0023] The T-shaped block 33 has a sliding hole at one end near the U-shaped frame 37, and the T-shaped block 33 is slidably mounted with a smooth rod 36 through the sliding hole. The two ends of the smooth rod 36 are fixed to the bottom of the walking plate 1 by a rod frame.

[0024] During use, the two walking components 3 enable the flaw detection body 4 to move autonomously along the rail track without manual pushing or carrying. It can automatically walk to each weld and complete the inspection task in sequence, completely freeing operators from heavy manual labor. It is particularly suitable for large-scale, continuous flaw detection operations on long rail lines, improving inspection efficiency by orders of magnitude, reducing the labor intensity of inspection personnel, and increasing inspection efficiency. At the same time, the flaw detection probe 48 can be moved horizontally and vertically, and the angle of the flaw detection probe 48 can be adjusted vertically, enabling multi-face inspection of rail welds, improving the comprehensiveness of the inspection. Moreover, the integrated design integrates the self-driving components, flaw detection body, etc. into a compact device, making it easy for inspection personnel to carry and operate, improving the portability and practicality of the equipment. Example 2

[0025] Reference Figures 1-3 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the flaw detection body 4 includes an L-shaped frame 41 fixed to the bottom of the walking plate 1. A linear motor 42 is fixed on the L-shaped frame 41. A platform 43 is installed on the movable end of the linear motor 42. An electric telescopic rod 44 is installed on the top of the platform 43. A flaw detection probe 48 is installed on the movable end of the electric telescopic rod 44. An ultrasonic host is installed on the top of the walking plate 1. The ultrasonic host and the flaw detection probe 48 are connected by a wire.

[0026] The movable end of the electric telescopic pole 44 is fixed with a motor frame 45. A micro motor 46 is installed inside the motor frame 45. The drive end of the micro motor 46 is fixedly connected to a rotating connecting block 410. A disc 47 is welded to the flat end of the rotating connecting block 410, and the flaw detection probe 48 is detachably installed on the disc 47.

[0027] Two sleeves 49 are provided on one end face of the disc 47 near the flaw detector 48, and the flaw detector 48 is clamped between the two sleeves 49. At the same time, one sleeve 49 is welded to one end face of the disc 47, and the other sleeve 49 is detachably installed at the bottom of the sleeve 49 by bolts. The sleeve 49 is provided with a wire hole.

[0028] During use, the distance between the flaw detection probe 48 and the weld is adjusted by extending and retracting the electric telescopic rod 44, so that the flaw detection probe 48 is in close contact with the weld for inspection. At the same time, the linear motor 42 can drive the flaw detection probe 48 to move longitudinally, so that the flaw detection probe 48 moves longitudinally to the rail web where it is in contact with the weld, thereby increasing the inspection area of ​​the weld. Meanwhile, the rotating connecting block 410 is started by the micro motor 46 to rotate, which will realize the longitudinal adjustment of the angle of the flaw detection probe 48. The angle of the flaw detection probe 48 is adapted to different positions on the rail web, so that the flaw detection probe 48 is closely aligned and in contact with the rail web line, thereby improving the inspection effect.

[0029] The remaining structure is the same as that in Example 1.

[0030] Based on embodiments 1-2, the working principle of this utility model is as follows: The welded rails are placed on a pad, so that the bottom of the rails is exposed and the pad is not at the weld. The traveling plate 1 is placed on the rails, so that the rolling end of the traveling wheel 31 is in contact with the upper surface of the rails. Then, the dual-axis motor 32 drives the two lead screws 34 to rotate. Under the threaded transmission action of the lead screws 34 and the threaded holes on the T-blocks 33, the two T-blocks 33 move simultaneously toward the dual-axis motor 32, which means that the two drive wheels 38 move simultaneously toward the rails and clamp the rails between the two drive wheels 38. The traveling plate 1 is then clamped on the rails by the two traveling components 3. Then, the servo motor 39 drives the drive wheels 38 to rotate. Under the action of the friction between the drive wheels 38 and the outer wall of the rails, the traveling plate 1 moves linearly along the rails. The inspection process for the four weld seams of the main flaw detection body is as follows: When inspecting the rail web, the flaw detection probe 48 is positioned directly opposite the rail web. The distance between the flaw detection probe 48 and the weld is adjusted by extending and retracting the electric telescopic rod 44, so that the flaw detection probe 48 is in contact with the weld and can be inspected. At the same time, the linear motor 42 can drive the flaw detection probe 48 to move longitudinally, so that the flaw detection probe 48 moves longitudinally at the rail web where it is in contact with the weld, thereby increasing the inspection area of ​​the weld. At the same time, by starting the rotating connecting block 410 to rotate via the micro motor 46, the angle of the flaw detection probe 48 can be adjusted longitudinally. The angle of the flaw detection probe 48 can be adjusted to fit the different positions on the rail web, so that the flaw detection probe 48 is closely aligned and fits the rail web, thereby improving the detection effect. When it is necessary to inspect the welds at the top or bottom of the rail: The electric telescopic rod 44 moves to the top of the rail through cooperation with the flaw detection probe 48, and the micro motor 46 drives the flaw detection probe 48 to rotate 90 degrees so that the detection end face of the flaw detection probe 48 faces the top or bottom of the rail. At this time, the extension and retraction of the electric telescopic rod 44 and the lifting and lowering of the linear motor 42 are coordinated to make the flaw detection probe 48 face the weld. The extension and retraction of the electric telescopic rod 44 pushes the flaw detection probe 48 to move laterally along the weld for comprehensive inspection of the weld.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An integrated rail weld flaw detector, comprising a rail and a traveling plate (1) that moves on the rail, wherein a cover (2) is bolted to the top of the traveling plate (1), characterized in that: The walking plate (1) has walking components (3) that move on the rails installed on both sides of the top, and flaw detection bodies (4) are installed at the bottom of the walking plate (1) and on both sides of the rails. The walking assembly (3) includes a walking wheel (31) fixed at the bottom center of the walking plate (1) and a U-shaped frame (37) located on both sides of the walking wheel (31). At the same time, the two U-shaped frames (37) move towards the center or the sides simultaneously. A servo motor (39) is fixed inside the U-shaped frame (37), and a drive wheel (38) is fixed at the drive end of the servo motor (39).

2. The integrated rail weld flaw detector according to claim 1, characterized in that: The walking assembly (3) also includes a dual-axis motor (32) installed at the top center of the walking plate (1). Both drive ends of the dual-axis motor (32) are equipped with lead screws (34). T-blocks (33) are threaded on the lead screws (34), and U-shaped frames (37) are fixed at the bottom of the T-blocks (33). One end face of the T-blocks (33) is provided with a threaded hole that is threaded to the lead screws (34). Limiting channels (35) through which the T-blocks (33) pass and slide are provided at the four corners of the top of the walking plate (1).

3. The integrated rail weld flaw detector according to claim 2, characterized in that: The T-shaped block (33) has a sliding hole at one end near the U-shaped frame (37), and the T-shaped block (33) has a light rod (36) slidably mounted on it through the sliding hole. The two ends of the light rod (36) are fixed to the bottom of the walking plate (1) by the rod frame.

4. The integrated rail weld flaw detector according to claim 3, characterized in that: The flaw detection body (4) includes an L-shaped frame (41) fixed to the bottom of the walking plate (1), a linear motor (42) fixed on the L-shaped frame (41), a platform (43) installed on the movable end of the linear motor (42), an electric telescopic rod (44) installed on the top of the platform (43), and a flaw detection probe (48) installed on the movable end of the electric telescopic rod (44).

5. The integrated rail weld flaw detector according to claim 4, characterized in that: The electric telescopic rod (44) has a motor frame (45) fixed to its movable end. A micro motor (46) is installed inside the motor frame (45). A rotating connecting block (410) is fixedly connected to the drive end of the micro motor (46). A disc (47) is welded to the flat end of the rotating connecting block (410).

6. The integrated rail weld flaw detector according to claim 5, characterized in that: Two sleeves (49) are provided on one end face of the disc (47) near the flaw detector (48), and the flaw detector (48) is clamped between the two sleeves (49). At the same time, one of the sleeves (49) is welded to one end face of the disc (47), and the other sleeve (49) is detachably installed at the bottom of the sleeve (49) by bolts.

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