Magnetic particle flaw detector

Abstract

The utility model discloses a magnetic powder flaw detector, which belongs to the technical field of magnetic powder flaw detection, and comprises a support frame, a rotating mechanism and flaw detection equipment, the support frame comprises a driving bracket, a liquid collecting bracket and a moving bracket; the rotating mechanism comprises a driving motor, a group of fixed seats, a rotating shaft and a transmission wheel, the driving motor is arranged below the driving support, the group of fixed seats are arranged above the driving support, the rotating shaft is arranged between the fixed seats, and the transmission wheel is arranged on the rotating shaft and connected with the driving motor through a transmission belt; a detection tube is arranged at the outer end of the rotating shaft, and a connector and a baffle are arranged between the detection tube and the rotating shaft; the flaw detection equipment comprises a moving mechanism and a flaw detector, the moving mechanism is arranged on the moving bracket, and the flaw detector is connected with the moving mechanism. The device is simple in structure and convenient to use, the stability of the flaw detection process is improved, magnetic powder liquid is recycled, manual misoperation is avoided, and the detection quality and the detection efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of magnetic particle inspection technology, specifically to a magnetic particle inspection machine. Background Technology

[0002] Magnetic particle testing can detect defects such as cracks, hairline cracks, white spots, folds, and inclusions in ferromagnetic materials. It has high detection sensitivity and can intuitively display the location, shape, size, and severity of defects. It has good repeatability in defect inspection and has been widely used in the flaw detection of pipes, bars, profiles, welded parts, machined parts, and forgings. Magnetic particle testing machines use probes, among which the ring probe can meet the flaw detection requirements of circumferential cracks in all workpieces that can be placed in the coil. It can also detect fatigue marks on workpieces and can be used for demagnetization of workpieces using the distance method.

[0003] Existing flaw detectors are inconvenient for comprehensive inspection of pipes. The equipment has a complex structure, is not easy to move, and the installation and maintenance process is cumbersome. Flaw detectors are usually inspected manually by hand, which is prone to operational errors. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic particle flaw detector to solve the above problems, automate the flaw detection operation, conduct comprehensive inspection of pipes, improve flaw detection efficiency and quality, and reduce human error.

[0005] Technical Solution: This utility model provides a magnetic particle flaw detector, including: a support frame, a rotating mechanism, and a flaw detector. The support frame includes a drive bracket, a liquid collection bracket, and a movable bracket. The liquid collection bracket is arranged on one side of the drive bracket, and the movable bracket is arranged above the liquid collection bracket. The rotating mechanism includes a drive motor, a set of fixed seats, a rotating shaft, and a transmission wheel. The drive motor is arranged below the drive bracket, the set of fixed seats is arranged above the drive bracket, the rotating shaft is arranged between the fixed seats, and the transmission wheel is arranged on the rotating shaft and connected to the drive motor through a transmission belt to output power. A detection tube is arranged at the outer end of the rotating shaft. The diameter of the detection tube is less than or equal to the inner diameter of the product to be tested. A connector and a baffle are arranged between the detection tube and the rotating shaft. The flaw detector includes a movable mechanism and a flaw detector. The movable mechanism is arranged on the movable bracket, and the flaw detector is connected to the movable mechanism. The flaw detector is annular, and the detection tube passes through the middle of the flaw detector. The movable mechanism drives the flaw detector to move back and forth along the detection tube.

[0006] Furthermore, in the aforementioned magnetic particle flaw detector, the drive support includes a base frame, a top frame, and a connecting rod. The side of the base frame closest to the liquid collection support is higher than the other side. The top frame is positioned above the base frame, and the connecting rod is positioned in the middle of the top frame. The fixed base is respectively positioned on the connecting rod and the top frame, and the drive motor is positioned below the connecting rod.

[0007] Furthermore, in the aforementioned magnetic particle flaw detector, adjustable feet are provided under the base frame.

[0008] Furthermore, in the aforementioned magnetic particle flaw detector, the connector has a conical structure with a bottom diameter larger than the diameter of the product to be tested.

[0009] Furthermore, in the aforementioned magnetic particle flaw detector, the height of the liquid collection support is lower than that of the drive support, and a leakage pool is provided on the liquid collection support. The leakage pool has a downwardly recessed structure and a leakage hole is provided at the bottom.

[0010] Furthermore, in the aforementioned magnetic particle flaw detector, the bottom of the liquid collection support is provided with a liquid collection tank, which faces the leakage pool and receives the magnetic powder liquid flowing down from the leakage hole.

[0011] Furthermore, in the aforementioned magnetic particle flaw detector, the moving mechanism includes a moving motor, a screw, and a sliding connecting block. The moving motor is mounted on a moving support, the screw is connected to the moving motor, the sliding connecting block is mounted on the screw and moves with the rotation of the screw, and the sliding connecting block is connected to the flaw detector.

[0012] Furthermore, in the aforementioned magnetic particle flaw detector, the drive bracket, liquid collection bracket, and moving bracket are provided with opaque PC boards on their outer sides.

[0013] As can be seen from the above technical solution, this utility model has the following beneficial effects: The magnetic particle flaw detector described in this utility model has a simple structure and is easy to use. The upper part of the drive support is inclined, so that the rotating mechanism is also inclined. During the flaw detection process, the pipe is sleeved on the detection tube to prevent the pipe from slipping during rotation. A liquid collection support is set up, and a leakage pool and a liquid collection box are set up to collect the magnetic powder liquid spilled on the pipe, which can be recycled. The flaw detector is controlled by a moving mechanism to avoid human error, ensure the consistency of each flaw detection process, improve detection quality, and improve detection efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a magnetic particle flaw detector according to the present invention;

[0015] Figure 2 This is a schematic diagram of the rotating mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the drive bracket of this utility model;

[0017] Figure 4 This is a schematic diagram of the liquid collection support of this utility model;

[0018] Figure 5 This is a schematic diagram of the moving mechanism of this utility model.

[0019] In the figure: support frame 1, rotating mechanism 2, flaw detection equipment 3, drive bracket 11, liquid collection bracket 12, moving bracket 13, drive motor 21, fixed seat 22, rotating shaft 23, transmission wheel 24, moving mechanism 31, flaw detector 32, base frame 111, top frame 112, connecting rod 113, adjustable pad 114, detection tube 231, connector 232, baffle 233, leakage pool 121, leakage hole 122, moving motor 311, screw 312, sliding connecting block 313. Detailed Implementation

[0020] Example 1

[0021] like Figure 1-2 The magnetic particle flaw detector shown includes: a support frame 1, a rotating mechanism 2, and a flaw detection device 3. The support frame 1 includes a drive bracket 11, a liquid collection bracket 12, and a movable bracket 13. The liquid collection bracket 12 is arranged on one side of the drive bracket 11, and the movable bracket 13 is arranged above the liquid collection bracket 12. The rotating mechanism 2 includes a drive motor 21, a set of fixed seats 22, a rotating shaft 23, and a transmission wheel 24. The drive motor 21 is arranged below the drive bracket 11, the set of fixed seats 22 is arranged above the drive bracket 11, the rotating shaft 23 is arranged between the fixed seats 22, and the transmission wheel 24 is arranged on the rotating shaft. A drive motor 21 is connected to the shaft 23 via a transmission belt to output power. A detection tube 231 is installed at the outer end of the rotating shaft 23. The diameter of the detection tube 231 is less than or equal to the inner diameter of the product to be tested. A connector 232 and a baffle 233 are installed between the detection tube 231 and the rotating shaft 23. The flaw detection device 3 includes a moving mechanism 31 and a flaw detector 32. The moving mechanism 31 is mounted on a moving support 13. The flaw detector 32 is connected to the moving mechanism 31 and is annular. The detection tube 231 passes through the middle of the flaw detector 32. The moving mechanism 31 drives the flaw detector 32 to move back and forth along the detection tube 231. The pipe product to be tested is fitted onto the outside of the detection tube 231. The drive motor 21 drives the rotating shaft 23 to rotate, thereby causing the pipe product to rotate. Magnetic powder liquid is poured onto the pipe product to be tested and evenly covers the surface through rotation. The moving mechanism 31 drives the flaw detector 32 to move back and forth to detect whether there are defects in the pipe product.

[0022] like Figure 3The magnetic particle inspection machine shown includes a drive support 11 comprising a base frame 111, a top frame 112, and a connecting rod 113. The side of the base frame 111 closest to the liquid collection support 12 is higher than the other side. The top frame 112 is positioned above the base frame 111, and the connecting rod 113 is positioned in the middle of the top frame 112. Fixed seats 22 are respectively mounted on the connecting rod 113 and the top frame 112. The drive motor 21 is positioned below the connecting rod 113. Adjustable feet 114 are provided below the base frame 111. The upper part of the drive support 11 is inclined, causing the rotating mechanism 2 to also be inclined. During the inspection process, the pipe is fitted onto the detection tube 231, and with the help of the connector 232 and the baffle 233, the pipe is effectively prevented from slipping during rotation.

[0023] Example 2

[0024] Based on Example 1, in this example, as Figure 2 The magnetic particle flaw detector shown has a connector 232 with a conical structure and a bottom diameter larger than the diameter of the product to be tested.

[0025] like Figure 4 The magnetic particle flaw detector shown has a liquid collection support 12 that is lower than the drive support 11. The liquid collection support 12 is provided with a leakage pool 121, which is a downwardly recessed structure with a leakage hole 122 at the bottom.

[0026] In this embodiment, the liquid collection support 12 is provided with a liquid collection tank at its bottom, which faces the leakage pool 121 and receives the magnetic powder liquid flowing down from the leakage hole 122. The liquid collection tank collects the magnetic powder liquid spilled on the pipe and can be recycled.

[0027] like Figure 5 The magnetic particle flaw detector shown includes a moving mechanism 31 comprising a moving motor 311, a screw 312, and a sliding connecting block 313. The moving motor 311 is mounted on a moving support 13, the screw 312 is connected to the moving motor 311, and the sliding connecting block 313 is mounted on the screw 312 and moves with the rotation of the screw 312. The sliding connecting block 313 is connected to the flaw detector 32. The flaw detector 32 is controlled to move by the moving mechanism 31, avoiding human error, ensuring consistency in each flaw detection process, improving detection quality, and increasing detection efficiency.

[0028] In this embodiment, the outer sides of the drive bracket 11, the liquid collection bracket 12, and the moving bracket 13 are provided with opaque PC boards to meet the photometric requirements of magnetic particle inspection.

[0029] It should be noted that the above description is merely a technical solution of the utility model and not a limitation. Although the present 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 the utility model without departing from the scope of the present utility model, and all such modifications and substitutions should be covered within the scope of the claims of the present utility model.

Claims

1. A magnetic particle flaw detector, characterized in that: include: The support frame (1) includes a drive bracket (11), a liquid collection bracket (12), and a movable bracket (13). The liquid collection bracket (12) is provided on one side of the drive bracket (11), and the movable bracket (13) is provided above the liquid collection bracket (12). The rotating mechanism (2) includes a drive motor (21), a set of fixed seats (22), a rotating shaft (23), and a transmission wheel (24). The drive motor (21) is located below the drive bracket (11), the set of fixed seats (22) is located above the drive bracket (11), the rotating shaft (23) is located between the fixed seats (22), and the transmission wheel (24) is located on the rotating shaft (23) and connected to the drive motor (21) via a transmission belt to output power. A probe tube (231) is provided at the outer end of the rotating shaft (23). The diameter of the probe tube (231) is less than or equal to the inner diameter of the product to be tested. A connector (232) and a baffle (233) are provided between the probe tube (231) and the rotating shaft (23). The flaw detection device (3) includes a moving mechanism (31) and a flaw detector (32). The moving mechanism (31) is mounted on a moving support (13). The flaw detector (32) is connected to the moving mechanism (31). The flaw detector (32) is circular. The detection tube (231) passes through the flaw detector (32). The flaw detector (32) moves back and forth along the detection tube (231).

2. The magnetic particle flaw detector according to claim 1, characterized in that: The drive bracket (11) includes a base frame (111), a top frame (112), and a connecting rod (113). The base frame (111) is higher on one side than the liquid collection bracket (12). The top frame (112) is located above the base frame (111). The connecting rod (113) is located in the middle of the top frame (112). The fixing seat (22) is located on the connecting rod (113) and the top frame (112), respectively. The drive motor (21) is located below the connecting rod (113).

3. A magnetic particle flaw detector according to claim 2, characterized in that: Adjustable feet (114) are provided under the base frame (111).

4. A magnetic particle flaw detector according to claim 1, characterized in that: The connector (232) has a conical structure with a bottom diameter larger than the diameter of the product to be tested.

5. A magnetic particle flaw detector according to claim 1, characterized in that: The height of the liquid collection bracket (12) is lower than that of the drive bracket (11). A leakage pool (121) is provided on the liquid collection bracket (12). The leakage pool (121) has a downwardly recessed structure and a leakage hole (122) is provided at the bottom.

6. A magnetic particle flaw detector according to claim 5, characterized in that: The liquid collection bracket (12) is provided with a liquid collection tank at the bottom, which is directly opposite the leakage pool (121) and receives the magnetic powder liquid flowing down from the leakage hole (122).

7. A magnetic particle flaw detector according to claim 1, characterized in that: The moving mechanism (31) includes a moving motor (311), a screw (312), and a sliding connecting block (313). The moving motor (311) is mounted on the moving bracket (13). The screw (312) is connected to the moving motor (311). The sliding connecting block (313) is mounted on the screw (312) and moves with the rotation of the screw (312). The sliding connecting block (313) is connected to the flaw detector (32).

8. A magnetic particle flaw detector according to claim 1, characterized in that: The drive bracket (11), liquid collection bracket (12), and moving bracket (13) are provided with opaque PC boards on their outer sides.

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