A probe positioning device for special equipment inspection

Abstract

This utility model belongs to the field of special equipment inspection and provides a probe positioning device for special equipment inspection. It includes a bracket and an arc-shaped block. The outer arc surface of the arc-shaped block has a handle, and the inner arc surface has several ball bearings. An adaptive probe assembly is mounted on the arc-shaped block and includes a detection probe that can move radially along the arc-shaped block and a telescopic unit. The detection probe is an ultrasonic probe. A connecting assembly is located on one side of the arc-shaped block and includes a take-up roller and a connecting rope wound around it. The end of the connecting rope has a loop. This utility model, through the combined use of the bracket and the adaptive probe assembly, and the multi-arc design of the radially adjustable detection probe and the arc-shaped block, can cover special equipment of various diameters without replacing the bracket, thus improving applicability. The connecting assembly allows for the splicing and connection of multiple devices, enabling close-fitting scanning of circumferential welds on pipes of different diameters, resulting in high inspection efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of special equipment inspection, specifically a probe positioning device for special equipment inspection. Background Technology

[0002] In the field of special equipment inspection, ultrasonic probes are often used to inspect welds on pipes, containers, etc. A positioning device is required to ensure that the probe is stably attached to the surface of the workpiece and moves along the weld.

[0003] Existing supports are mostly designed with a fixed curvature, and one type of support can only be used for equipment of a specific diameter. When dealing with special equipment of different specifications, the support needs to be changed frequently, which not only increases the equipment cost but also prolongs the preparation time for testing. When inspecting circumferential welds, a single probe needs to move around the circumference of the workpiece, which is cumbersome and prone to missed detection due to trajectory deviation. Multi-probe combinations lack a precise splicing and positioning structure, making it difficult to ensure synchronous testing. The probe position is fixed and cannot be radially adjusted according to the curvature of the workpiece, which can easily lead to loose fit and affect the stability of the detection signal. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a probe positioning device for special equipment inspection, which solves the problems of poor versatility of the detection bracket, lack of probe splicing and positioning, and weak adaptive adjustment in the prior art, thus affecting detection efficiency and accuracy.

[0005] A probe positioning device for special equipment inspection, comprising:

[0006] The bracket includes an arc-shaped block, the outer arc surface of which is provided with a handle and the inner arc surface is provided with a plurality of ball bearings;

[0007] An adaptive probe assembly, mounted on an arc-shaped block, includes a detection probe and a telescopic unit that can move radially along the arc-shaped block, wherein the detection probe is an ultrasonic probe;

[0008] A connecting component, located on one side of the arc-shaped block, includes a take-up roller and a connecting rope wound thereon, the end of which is provided with a collar;

[0009] The connecting hook is located on the side of the arc-shaped block away from the connecting component and is adapted to the collar;

[0010] The drive assembly, located at one end of the take-up roller, is used to lock the take-up roller.

[0011] Preferably, the telescopic unit includes a guide post, one end of which is fixed to the detection probe, and the other end slides through the arc-shaped block and is provided with a limiting ring, and a reset spring is sleeved on the outside.

[0012] Preferably, the bottom surface of the detection probe is provided with a flexible pad, and the upper end of the guide post is provided with an aviation plug for transmitting detection data.

[0013] Preferably, a coil spring is provided between the take-up roller and the arc-shaped block for automatically retrieving the connecting rope, wherein the connecting rope is a high-strength nylon rope or a steel wire rope.

[0014] Preferably, the drive assembly includes a handwheel and a positioning post slidably disposed thereon, and the arc-shaped block is provided with a plurality of positioning holes that cooperate with the positioning post.

[0015] Preferably, the arc-shaped block is made of high-strength aluminum alloy, and the ball bearing protrudes from the inner arc surface to reduce moving friction.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This utility model, through the combined use of a bracket and an adaptive probe assembly, and the multi-arc design of the radially adjustable detection probe and the arc block, can cover special equipment of various diameters without the need to replace the bracket, thus improving its applicability.

[0018] 2. This utility model can achieve splicing and connection of multiple devices through connecting components, and can perform surface scanning on the circumferential welds of pipes with different diameters, resulting in high detection efficiency. Attached Figure Description

[0019] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the third-view three-dimensional structure of this utility model.

[0022] In the picture:

[0023] 1. Bracket; 101. Arc block; 102. Handle; 103. Ball bearing; 2. Adaptive probe assembly; 201. Detection probe; 202. Guide post; 203. Limiting ring; 204. Return spring; 3. Connecting assembly; 301. Take-up roller; 302. Connecting rope; 303. Collar; 4. Drive assembly; 401. Handwheel; 402. Positioning post; 5. Aviation plug; 6. Connecting hook; 7. Positioning hole; 8. Flexible pad. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] As attached Figure 1 To be continued Figure 3 As shown:

[0026] This utility model provides a probe positioning device for special equipment inspection, including a bracket 1, an adaptive probe assembly 2, a connecting assembly 3, and a driving assembly 4.

[0027] As attached Figure 2 To be continued Figure 3 As shown: The bracket 1 includes an arc-shaped block 101, which is made of high-strength aluminum alloy with an adjustable arc of R50-R500mm and a wall thickness of 5mm. Two symmetrical handles 102 are welded to the outer arc surface of the arc-shaped block 101 for easy hand operation. Six balls 103 are embedded at both ends of the inner arc surface. The balls 103 protrude 1mm from the inner arc surface to reduce friction with the equipment surface when the device moves and to avoid scratching the equipment.

[0028] As attached Figure 1 To be continued Figure 3 As shown: A radial groove is formed on the arc-shaped block 101, and a guide post 202 is slidably arranged in the groove. One end of the guide post 202 is vertically fixed to the detection probe 201. The detection probe 201 is an ultrasonic probe with a frequency of 2.5-5MHz, which can move along the groove to adapt to equipment surfaces with different curvatures. The upper end of the guide post 202 slides through the through hole of the arc-shaped block 101, and the top end is detachably connected to the limiting ring 203 by bolts to prevent it from falling off. A return spring 204 is sleeved on the outside of the guide post 202, and the two ends of the spring abut against the detection probe 201 and the arc-shaped block 101 respectively to ensure that the probe is always in contact with the equipment surface.

[0029] As attached Figure 2 To be continued Figure 3 As shown: A take-up roller 301 is rotatably mounted on one side of the arc-shaped block 101 via a bearing. A connecting rope 302, made of high-strength nylon rope or steel wire rope, is wound around the take-up roller 301. A collar 303 is fixed to the end of the connecting rope 302. A connecting hook 6, adapted to the collar 303, is welded to the other side of the arc-shaped block 101, enabling rapid assembly of multiple devices. A coil spring is installed between the take-up roller 301 and the arc-shaped block 101 for automatic retraction of the connecting rope. One end of the take-up roller 301 extends out of the arc-shaped block 101 and connects to the drive assembly 4.

[0030] As attached Figure 2 To be continued Figure 3 As shown: The drive assembly 4 includes a handwheel 401 fixed to the end of the take-up roller 301. A positioning post 402 is slidably arranged on the handwheel 401 along the radial direction. Twelve positioning holes 7 are evenly opened at the corresponding positions on the arc block 101. The positioning post 402 can be inserted into the positioning hole 7 to lock the take-up roller 301 and ensure that the tension of the connecting rope is consistent.

[0031] As attached Figure 1 To be continued Figure 2 As shown: An aviation plug 5 is installed on the upper end of the guide column 202 for connecting the detection host to transmit data; a flexible pad 8 is pasted on the bottom surface of the detection probe 201 to enhance the sealing and protect the surface of the equipment.

[0032] Working principle: During single-probe scanning, the operator directly holds the handle 102, aligning the inner arc surface of the arc-shaped block 101 with the pipe. The ball bearing 103 contacts the surface, reducing resistance. The pushing device moves axially along the pipe, and the return spring 204 keeps the detection probe 201 in contact with the surface. The ultrasonic signal is transmitted to the main unit via the aviation connector 5, displaying defect data in real time. During movement, the ball bearing 103 reduces friction, ensuring smooth probe movement.

[0033] When inspecting a circumferential weld by splicing multiple devices, take multiple devices, hook the collar 303 of the first device into the connecting hook 6 of the second device, turn the handwheel 401 to tighten the connecting rope 302, and lock the positioning column 402; similarly, connect the third device to form a ring with a diameter that matches the pipe.

[0034] The assembled device is placed on the outside of the circumferential weld, and the coil spring automatically adjusts the tension of the connecting rope to ensure that each detection probe 201 is evenly distributed. Simultaneously, all devices are pushed to rotate around the pipeline, and the detection probes 201 fit into the weld under the action of the reset spring, achieving 360° blind-spot-free detection, which improves the detection efficiency by 3 times compared to a single device.

[0035] The embodiments of this utility model are given for the purpose of illustration and description. Although the embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Any changes, modifications, substitutions and variations made by those skilled in the art to the above embodiments within the scope of this utility model should be included within the protection scope of this utility model.

Claims

1. A probe positioning device for special equipment inspection, characterized by, include: The bracket (1) includes an arc-shaped block (101), the outer arc surface of which is provided with a handle (102), and the inner arc surface is provided with a plurality of balls (103); An adaptive probe assembly (2) is disposed on an arc block (101) and includes a detection probe (201) that can move radially along the arc block (101) and a telescopic unit. The detection probe (201) is an ultrasonic probe. The connecting component (3) is located on one side of the arc-shaped block (101) and includes a take-up roller (301) and a connecting rope (302) wound thereon. The end of the connecting rope (302) is provided with a collar (303). A connecting hook (6) is located on the side of the arc-shaped block (101) away from the connecting assembly (3) and is adapted to the collar (303); The drive assembly (4) is located at one end of the take-up roller (301) and is used to lock the take-up roller (301).

2. The positioning device of claim 1, wherein, The telescopic unit includes a guide post (202), one end of which is fixed to the detection probe (201), and the other end slides through the arc-shaped block (101) and is provided with a limiting ring (203), and a reset spring (204) is sleeved on the outside.

3. The positioning device of claim 2, wherein, The bottom surface of the detection probe (201) is provided with a flexible pad (8), and the upper end of the guide post (202) is provided with an aviation plug (5) for transmitting detection data.

4. The positioning device of claim 1, wherein, A coil spring is provided between the take-up roller (301) and the arc-shaped block (101) for automatically retrieving the connecting rope (302), which is a high-strength nylon rope or a steel wire rope.

5. The positioning device of claim 1, wherein, The drive assembly (4) includes a handwheel (401) and a positioning post (402) slidably disposed thereon. The arc-shaped block (101) is provided with a plurality of positioning holes (7) that cooperate with the positioning post (402).

6. The positioning device of claim 1, wherein, The arc-shaped block (101) is made of high-strength aluminum alloy, and the ball (103) protrudes from the inner arc surface to reduce moving friction.

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