Weld joint probe anti-wear protection device

Abstract

The anti-abrasion protection device comprises a lower protection shell with an opening in the top, and an upper protection shell with an opening in the bottom is arranged at the top of the lower protection shell; the upper protective shell is detachably connected with the lower protective shell, and an opening communicated with the interior of the upper protective shell is formed in the side wall of one surface of the upper protective shell; the inner contours of the lower protective shell and the upper protective shell are matched with the outer contour of the probe matrix, and the opening of the upper protective shell is vertically clamped on the diagonal plane of the probe matrix; according to the protection device, on the premise that the detection result of the probe is not affected, the probe is prevented from being in direct contact with the top of the steel rail when detecting the steel rail welding seam damage, the probe cannot be abraded, and the technical problem that the welding seam probe is abraded when workers of high-speed rails or subways conduct welding seam flaw detection operation is solved.

Description

Technical Field

[0001] This utility model belongs to the field of anti-wear technology for weld seam probes, and particularly relates to an anti-wear protection device for weld seam probes. Background Technology

[0002] In the high-speed rail and subway industries, weld seam inspection uses extremely consumable probes. This is because during rail weld seam inspection, the probe rubs against the rail surface, causing damage to the probe body. Severe wear can mislead inspectors in locating defects. Probes worn down to the level of the outer shell are scrapped. Currently, in the urban rail transit industry, one set of weld seam probes is consumed every 4 kilometers for rail weld seam inspection. Especially during the pre-opening acceptance phase, probe wear increases to one set every 2 kilometers, and each weld joint requires three probes for scanning. Therefore, the consumption of weld seam probes is extremely high, resulting in high costs. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a wear-resistant protection device for weld probes. By setting up an upper protective shell and a lower protective shell, the probe body is placed in the upper and lower protective shells, avoiding direct contact between the probe and the top of the rail when detecting rail weld damage, thus preventing probe wear. Furthermore, since the upper and lower protective shells are made of plexiglass, the sound waves emitted by the probe body will not be attenuated when passing through the bottom of the lower protective shell, and will penetrate into the rail weld for flaw detection. The detection results are not affected by the protection device, thus solving the technical problem of weld probe wear during weld flaw detection operations by high-speed rail or subway workers.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A wear-resistant protection device for a weld probe includes a lower protective housing 1 with a top opening and an upper protective housing 2 with a bottom opening at the top of the lower protective housing 1. The upper protective housing 2 is detachably connected to the lower protective housing 1. An opening 11 communicating with the interior of the upper protective housing 2 is machined on one side wall. The inner contours of the lower protective housing 1 and the upper protective housing 2 are adapted to the outer contour of the probe body 3, and the opening 11 of the upper protective housing 2 is vertically engaged with the oblique cut surface 12 of the probe body 3.

[0006] The upper protective shell 2 is detachably connected to the lower protective shell 1 via a screw 4. The shell thickness of the lower protective shell 1 and the upper protective shell 2 is greater than the diameter of the screw 4. The two side walls of the upper protective shell 2 are respectively provided with grooves 6 perpendicular to the horizontal ground. The bottom of the grooves 6 is provided with a first screw hole 7 penetrating the bottom of the upper protective shell 2. The top of the lower protective shell 1 is provided with a second screw hole 8 communicating with the first screw hole 7. Both the first screw hole 7 and the second screw hole 8 are engaged with the screw 4.

[0007] The groove 6 is a conical groove with a larger inner diameter at the top and a smaller inner diameter at the bottom.

[0008] The angle α between the inner top surface of the upper protective shell 2 and the horizontal plane is 5°.

[0009] The lower protective housing 1 has a rounded bottom edge 9 on the outer side along the probe body 3 in the direction of probe advance.

[0010] The lower protective housing 1 has a black rubber inclined block 10 on the bottom inner side along the probe body 3 in the direction of probe advance.

[0011] Both the lower protective shell 1 and the upper protective shell 2 are made of plexiglass.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, by setting up an upper protective shell and a lower protective shell, places the probe body inside the upper and lower protective shells, avoiding direct contact between the probe and the top of the rail when detecting rail weld damage. The probe will not wear out, enabling continuous weld flaw detection operations and improving the work efficiency of weld flaw detection.

[0014] 2. The upper and lower protective shells of this utility model are made of plexiglass. The sound waves emitted by the probe body will not be attenuated when they pass through the bottom of the lower protective shell. They can penetrate into the rail weld for flaw detection. The detection results are not affected by the protective device, which solves the technical problem of wear and tear on the weld probe during weld flaw detection operations by high-speed rail or subway workers.

[0015] 3. This utility model, by machining the bottom edge of the lower protective shell along the probe body's forward detection direction into a rounded chamfer, greatly reduces the resistance of the weld probe anti-wear protection device during its movement on the rail, thus extending the service life of the protection device.

[0016] 4. This utility model has a black rubber inclined block set on the bottom edge of the probe body along the detection direction inside the lower protective shell. When the reflected wave and incident wave emitted by the probe pass through the inclined block, the reflected wave is absorbed and the incident wave directly enters the interior of the rail. This prevents the reflected clutter from entering the side of the lower protective shell and prevents the reflected clutter from directly returning to the probe interior, thus reducing the influence of clutter inside the probe.

[0017] In summary, the protective device of this utility model avoids direct contact between the probe and the top of the rail without affecting the probe's detection results. The probe is completely protected and no longer wears out, achieving zero consumption of the weld flaw detection probe, improving the efficiency of weld flaw detection, and reducing probe costs. Attached Figure Description

[0018] Figure 1 A schematic diagram of the wear-resistant protection device for the weld probe with built-in probe housing provided by this utility model.

[0019] Figure 2 A schematic diagram of the anti-wear protection device for weld probes without built-in probe housing provided by this utility model.

[0020] In the figure: lower protective housing 1, upper protective housing 2, probe body 3, screw 4, wire connector 5, groove 6, first screw hole 7, second screw hole 8, chamfer 9, bevel block 10, opening 11, beveled surface 12. Detailed Implementation

[0021] A wear-resistant protection device for a weld probe includes a lower protective housing 1 with a top opening and an upper protective housing 2 with a bottom opening at the top of the lower protective housing 11. The upper protective housing 2 is detachably connected to the lower protective housing 1 via a screw 4. An opening 11 communicating with the interior of the upper protective housing 2 is machined on one side wall. The inner contours of the lower protective housing 1 and the upper protective housing 2 are adapted to the outer contour of the probe body 3, and the opening 11 of the upper protective housing 2 is vertically engaged with the oblique surface 12 of the probe body 3. A wire connector 5 integrally connected to the probe body 3 is provided on the oblique surface 12 of the probe body 3.

[0022] The thickness of the lower protective shell 1 and the upper protective shell 2 is greater than the diameter of the screw 4. The two side walls of the upper protective shell 2 are respectively provided with grooves 6 perpendicular to the horizontal ground. The grooves 6 are tapered grooves with a larger inner diameter at the top and a smaller inner diameter at the bottom. The bottom of the grooves 6 is provided with a first screw hole 7 that penetrates the bottom of the upper protective shell 2. The top of the lower protective shell 1 is provided with a second screw hole 8 that communicates with the first screw hole 7. Both the first screw hole 7 and the second screw hole 8 are engaged with the screw 4, so that the upper protective shell 2 and the lower protective shell 1 are fixedly connected.

[0023] The angle α between the inner top surface of the upper protective shell 2 and the horizontal plane is 5°; the outer bottom edge of the lower protective shell 1 along the probe body 3 in the detection direction is processed into an arc-shaped chamfer 9, which can reduce the resistance of the weld probe anti-wear protection device during the push on the rail; the lower protective shell 1 is provided with a wedge 10 on the inner bottom along the probe body 3 in the detection direction. The wedge 10 is made of black rubber and is used to block some of the ultrasonic waves emitted by the probe body 3 from entering the probe interior through the side of the lower protective shell 1; the materials of the upper protective shell 2 and the lower protective shell 1 and the probe body 3 are all made of plexiglass.

[0024] The working principle of this utility model:

[0025] During operation, the bottom of the probe housing is coated with Vaseline, allowing the probe housing 3 to be placed inside the lower protective housing 1. The probe housing 3 is coupled to the bottom surface of the lower protective housing 1 via the Vaseline. Then, the upper protective housing 2 is placed on top of the lower protective housing 1, and the upper and lower protective housings are fixed together by screws 5. The upper and lower protective housings 2 and 1 are made of plexiglass. The wires of the probe housing 3 are connected to the wire connector 5. When the probe housing 3 is powered on, it emits ultrasonic waves. The ultrasonic waves do not attenuate when passing through the bottom of the lower protective housing 1 and penetrate into the rail weld for flaw detection. At the same time, the bottom of the probe housing 3 does not directly contact the rail surface within the lower protective housing 1 and is completely protected, preventing wear on the probe housing 3.

[0026] The technical solution of this utility model is not limited to the specific embodiments described above. All technical modifications made based on the technical solution of this utility model shall fall within the protection scope of this utility model.

Claims

1. A wear-resistant protection device for a weld seam probe, characterized in that, The device includes a lower protective housing (1) with a top opening and an upper protective housing (2) with a bottom opening at the top of the lower protective housing (1). The upper protective housing (2) is detachably connected to the lower protective housing (1). An opening (11) communicating with the interior of the upper protective housing (2) is machined on one side wall of the upper protective housing (2). The inner contours of the lower protective housing (1) and the upper protective housing (2) are adapted to the outer contour of the probe body (3), and the opening (11) of the upper protective housing (2) is vertically locked on the oblique surface (12) of the probe body (3).

2. The wear-resistant protection device for a weld probe according to claim 1, characterized in that: The upper protective shell (2) is detachably connected to the lower protective shell (1) by a screw (4). The shell thickness of the lower protective shell (1) and the upper protective shell (2) is greater than the diameter of the screw (4). The two side walls of the upper protective shell (2) are respectively provided with grooves (6) perpendicular to the horizontal ground. The bottom of the groove (6) is provided with a first screw hole (7) penetrating the bottom of the upper protective shell (2). The top of the lower protective shell (1) is provided with a second screw hole (8) communicating with the first screw hole (7). Both the first screw hole (7) and the second screw hole (8) are engaged with the screw (4).

3. The wear-resistant protection device for a weld probe according to claim 2, characterized in that: The groove (6) is a conical groove with a larger inner diameter at the top and a smaller inner diameter at the bottom.

4. The wear-resistant protection device for a weld probe according to claim 1, characterized in that: The angle α between the inner top surface of the upper protective shell (2) and the horizontal plane is 5°.

5. The wear-resistant protection device for a weld probe according to claim 1, characterized in that: The lower protective housing (1) has a rounded bottom edge (9) along the outer side of the probe body (3) in the direction of probe movement.

6. The wear-resistant protection device for a weld probe according to claim 1, characterized in that: The lower protective housing (1) has a black rubber inclined block (10) on the bottom inner side along the probe body (3) in the direction of probe advance.

7. The wear-resistant protection device for a weld probe according to claim 1, characterized in that: Both the lower protective shell (1) and the upper protective shell (2) are made of plexiglass.

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