Flaw detection device suitable for alloy steel point rail of shellfish frog

Abstract

The utility model relates to the technical field of railway turnout flaw detection, in particular to a flaw detection device suitable for a shellfish frog alloy steel point rail, which comprises an ultrasonic flaw detector, a scanning frame and a folding guide rail, the scanning frame comprises a frame body, a grip is arranged at the upper end of the frame body, a wiring port is arranged at one end of the upper side of the grip, and a photoelectric wheel is rotatably arranged at the front end of the frame body. A 0-degree probe, a front 37-degree single probe and a rear 37-degree single probe are sequentially arranged at the lower end of the frame body, the folding guide rails comprise a guide rail A and a guide rail B, the guide rails are rotationally connected through connecting pieces, the guide rails on the folding guide rails are unfolded into a straight line through the connecting pieces during use, and the scanning frame is mounted in the guide rails for flaw detection operation. According to the utility model, the 0-degree probe, the front 37-degree single probe and the rear 37-degree single probe are arranged to realize flaw detection of transverse cracks at the variable cross-section arc part of the rail bottom of the alloy steel point rail, so that the situations of missed detection and missed detection of a shell frog in a traditional detection mode are effectively avoided, and the driving safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of railway turnout flaw detection, in particular to a flaw detection device suitable for a Bayer frog alloy steel center rail. Background Art

[0002] By the end of 2023, the total operating mileage of China's railways will reach 159,000 kilometers. The railway network is becoming more and more dense, and turnouts are an indispensable part of the railway network. The railway network includes more and more turnouts; turnout flaw detection is the key difficulty in rail flaw detection. In recent years, with the increase in operating load, many safety incidents caused by the breakage of the switch heart rail have occurred across the country, seriously endangering driving safety; and from the analysis of the fracture situation, 85% are caused by transverse cracks in the variable cross-section of the bottom of the alloy heart rail, and the existing flaw detection methods are very limited in detecting damage to this part, and the effect is not ideal.

[0003] Through searching, the public announcement number CN220483292U discloses a flaw detection device for railway measurement. This utility model can adjust the position of the flaw detection mechanism according to needs by setting a lifting adjustment device and a lifting plate, so that the flaw detection mechanism is placed close to the upper side of the rail, which conforms to the ultrasonic detection method and avoids the propagation of sound waves in the rail and the air, thereby improving the accuracy of flaw detection.

[0004] However, when the railway measurement flaw detection device detects the fork part, due to the position setting of the ultrasonic flaw detection head, it can only detect the weld part, and it is difficult to detect the damage of the transverse crack part of the variable cross-section of the heart rail bottom, and the detection effect on the fork part is not ideal. Utility Model Content

[0005] In view of the existing problems, the utility model provides a flaw detection device suitable for a Bayesian frog alloy steel heart rail, aiming to solve the problem mentioned in the background technology that the existing equipment is difficult to detect the damage of the transverse crack part of the variable cross-section at the bottom of the heart rail, and the detection effect on the frog part is not ideal.

[0006] In order to solve the above problems, the utility model provides a flaw detection device suitable for a Bayeux frog alloy steel heart rail, comprising an ultrasonic flaw detector, a scanning frame and a folding guide rail, wherein the ultrasonic flaw detector is electrically connected to the scanning frame through a data line, the scanning frame comprises a frame body, a handle is arranged at the upper end of the frame body, a wiring port is arranged at one end of the upper side of the handle, a photoelectric wheel is rotatably arranged at the front end of the frame body, and a 0° probe, a front 37° single probe, and a rear 37° single probe are sequentially arranged on the lower side of the frame body; the folding guide rail comprises a group of guide rails A at both ends and a plurality of guide rails B in the middle, one end of the guide rail A is connected to a connecting piece, and both ends of the guide rail B are connected to connecting pieces, and the two connecting pieces are rotatably connected.

[0007] Furthermore, the bottom ends of the photoelectric wheel, the 0° probe, the front 37° single probe, and the rear 37° single probe are on the same line.

[0008] Furthermore, a sliding block is provided on the side of the frame body, and the scanning frame is slidably connected with the folding guide rail by placing the sliding block into the guide rail A and the guide rail B.

[0009] Furthermore, a magnet is installed at one end of the connecting piece.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model can perform flaw detection on transverse cracks at the variable-section arc at the bottom of the alloy steel heart rail by setting the positions of the 0° probe, the front 37° single probe and the rear 37° single probe, effectively eliminating the missed detection and missed inspection of the frog position in the traditional detection method.

[0012] 2. The utility model ensures that the scanning frame is always located at the center line of the frog during the flaw detection process by providing a folding guide rail, thereby improving the accuracy of flaw detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the overall structure of a flaw detection device suitable for alloy steel center rails of Bayer frogs;

[0014] Figure 2 It is a schematic diagram of a scanning frame part of a flaw detection device suitable for a Bayer frog alloy steel center rail;

[0015] Figure 3 It is a schematic diagram of a folded guide rail of a flaw detection device suitable for a Bayer frog alloy steel center rail in a folded state;

[0016] Figure 4 It is a partial schematic diagram of a connection piece of a flaw detection device suitable for a Bayer frog alloy steel center rail;

[0017] Figure 5 The present invention is a schematic diagram of the actual use status of a flaw detection device suitable for the alloy steel center rail of a Bayer frog.

[0018] Description of the numbers in the figure:

[0019] 1. Ultrasonic flaw detector; 2. Scanning frame; 201. Frame body; 202. Handle; 203. Wiring port; 204. Photoelectric wheel; 205. 0° probe; 206. Front 37° single probe; 207. Rear 37° single probe; 208. Slider; 3. Folding guide rail; 301. Guide rail A; 302. Guide rail B; 303. Connector; 304. Magnet; 4. Data cable. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 5 The utility model provides a flaw detection device suitable for a Bayesian frog alloy steel heart rail, comprising an ultrasonic flaw detector 1, a scanning frame 2 and a folding guide rail 3. The ultrasonic flaw detector 1 is electrically connected to the scanning frame 2 through a data line 4. The scanning frame comprises a frame body 201, a handle 202 is arranged on the upper end of the frame body 201, a wiring port 203 is arranged on one end of the upper side of the handle 202, a photoelectric wheel 204 is rotatably arranged at the front end of the frame body 201, and a 0° probe 205, a front 37° single probe 206, and a rear 37° single probe 207 are sequentially arranged on the lower side of the frame body 201; the folding guide rail 3 comprises a group of guide rails A301 at both ends and a plurality of guide rails B302 in the middle, one end of the guide rail A301 is connected to a connecting piece 303, and both ends of the guide rail B302 are connected to connecting pieces 303, and the two connecting pieces 303 are rotatably connected.

[0022] The bottom ends of the photoelectric wheel 204, the 0° probe 205, the front 37° single probe 206, and the rear 37° single probe 207 are on the same line.

[0023] A slider 208 is disposed on the side of the frame body 201 , and the scanning frame 2 is slidably connected with the folding guide rail 3 by placing the slider 208 into the guide rail A301 and the guide rail B302 .

[0024] Wherein, a magnet 304 is installed at one end of the connecting member 303 .

[0025] Specific embodiments of the utility model:

[0026] In this embodiment, the specific model of the ultrasonic flaw detector 1 is the HT-9D weld ultrasonic flaw detector.

[0027] When performing flaw detection, the scanning frame 2 is used in conjunction with the folding guide rail 3 when flaw detection is performed on the frog surface; the guide rails A301 and B302 on the folding guide rail 3 are unfolded into a straight line through the connecting piece 303, and the connecting pieces 303 are fixed together by magnets 304 so that they do not rotate, and the unfolded folding guide rail 3 is adsorbed on the frog through the magnets 304; the slider 208 on the scanning frame 2 is placed in the guide rail A301, and the scanning frame 2 moves forward and backward along the unfolded folding guide rail 3 to ensure that the scanning frame 2 moves along the center line of the frog's heart rail; at this time, the scanning frame 2 is operated so that the 0° probe 205 and the front 37° single probe 20 6. The rear 37° single probe 207 measures the frogs in turn. During the scanning process, the 0° probe 205, the front 37° single probe 206 and the rear 37° single probe 207 are always in contact with the frogs. The measurement data obtained by the scanning frame 2 is displayed on the ultrasonic flaw detector 1 through the data line 4. The displacement distance during the scanning process is recorded by the photoelectric wheel 204. At the same time, the 0° probe 205, the front 37° single probe 206 and the rear 37° single probe 207 are used to perform A-type and B-type ultrasonic inspections to find transverse cracks in the heart rail. After the flaw detection operation is completed, the foldable connector 303 refolds the foldable guide rail 3.

[0028] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A flaw detection device suitable for a Bayer frog alloy steel center rail, comprising an ultrasonic flaw detector (1), a scanning frame (2) and a folding guide rail (3), wherein the ultrasonic flaw detector (1) is electrically connected to the scanning frame (2) via a data line (4), and is characterized in that: The scanning frame comprises a frame body (201), a handle (202) is arranged at the upper end of the frame body (201), a wiring port (203) is arranged at one end of the upper side of the handle (202), a photoelectric wheel (204) is rotatably arranged at the front end of the frame body (201), and a 0° probe (205), a front 37° single probe (206), and a rear 37° single probe (207) are arranged in sequence at the lower side of the frame body (201); The folding guide rail (3) comprises a group of guide rails A (301) at both ends and a plurality of guide rails B (302) in the middle, one end of the guide rail A (301) is connected to a connecting piece (303), and both ends of the guide rail B (302) are connected to connecting pieces (303), and the two connecting pieces (303) are rotatably connected.

2. A flaw detection device for alloy steel center rail of Bayer frog according to claim 1, characterized in that: The bottom ends of the photoelectric wheel (204), the 0° probe (205), the front 37° single probe (206), and the rear 37° single probe (207) are located on the same line.

3. A flaw detection device for alloy steel center rail of Bayer frog according to claim 1, characterized in that: A sliding block (208) is provided on the side of the frame body (201), and the scanning frame (2) is slidably connected with the folding guide rail (3) by placing the sliding block (208) into the guide rail A (301) and the guide rail B (302).

4. A flaw detection device for alloy steel center rail of Bayer frog according to claim 1, characterized in that: A magnet (304) is installed at one end of the connecting piece (303).

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