Magnetic powder inspection device for pressure vessel

Abstract

The utility model provides a magnetic powder inspection device for a pressure vessel, which comprises a handheld main body, connecting seats respectively arranged at two ends of the handheld main body, a connecting block with one end movably connected with the connecting seats, and a probe assembly movably connected with the other end of the connecting block, the probe assembly comprises a probe block with one end hinged to the connecting block and a roller arranged at the other end of the probe block, a swing frame is movably arranged on the probe block, and the roller is rotationally arranged on the swing frame; a containing groove is formed in the other end of the probe block. According to the magnetic powder inspection device for the pressure vessel provided by the utility model, through the arrangement of the swing frame, the roller swings in the accommodating groove of the detection block, so that the roller is attached to welding seams at different positions and angles in the pressure vessel, and the magnetic powder inspection device for the pressure vessel is smoother when walking in the pressure vessel; and through the arrangement of the arc-shaped surface, the detection block is more attached to the interior of the pressure vessel, so that the applicability of the magnetic powder inspection device for the pressure vessel to the pressure vessel is higher.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic particle flaw detector, specifically relates to a pressure vessel magnetic particle flaw detection device. BACKGROUND

[0002] Magnetic particle detection is a method of using magnetically conductive metal to be magnetized in a magnetic field and detecting defect characteristics through display medium. Magnetic particle detection is widely used to detect surface and near-surface defects of ferromagnetic materials. The probe block of the magnetic particle flaw detection device generates a magnetic field. After the ferromagnetic material is magnetized by the strong magnetic field, if there is a defect perpendicular to the magnetization direction on the surface or near the surface of the material, it will cause part of the magnetic lines of force to overflow, forming a leakage magnetic field. If magnetic powder or magnetic suspension is applied at the leakage magnetic field, the leakage magnetic field will attract the magnetic powder, causing the magnetic powder or magnetic suspension to gather, and thus showing the defect. Especially for the detection of weld position, discontinuous magnetic marks are gathered on the surface of the workpiece to be detected, so the discontinuous shape, position and size can be directly displayed, and the nature can be roughly determined.

[0003] However, the existing magnetic particle flaw detection device is mainly used for detecting welds on flat surfaces, and it is difficult to fit curved welds. The applicability of the magnetic particle flaw detection device to curved welds in pressure vessels is not strong. The present scheme solves this technical problem. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a pressure vessel magnetic particle flaw detection device. The setting of the swing frame enables the roller to swing in the accommodating groove of the probe block, so that the pressure vessel magnetic particle flaw detection device can fit the welds at different positions and angles in the pressure vessel, and the pressure vessel magnetic particle flaw detection device can run more smoothly in the pressure vessel. The setting of the arc surface makes the probe block fit the interior of the pressure vessel better, and the detection effect is better, so that the applicability of the pressure vessel magnetic particle flaw detection device to the pressure vessel is stronger.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a pressure vessel magnetic particle flaw detection device, which comprises a handheld main body, a connecting seat arranged at two ends of the handheld main body, a connecting block movably connected to one end of the connecting seat, and a probe assembly movably connected to the other end of the connecting block.

[0006] The probe assembly comprises a probe block hingedly connected to one end of the connecting block, a roller arranged at the other end of the probe block, a swing frame movably arranged on the probe block, and a roller rotationally arranged on the swing frame.

[0007] The other end of the probe block is provided with an accommodating groove, the accommodating groove is provided with a connecting shaft, and the swing frame is swingingly arranged on the connecting shaft.

[0008] The swing frame is provided with a rotating shaft between two ends, the roller is rotatably arranged on the rotating shaft, and the two ends of the roller are provided with rounded corners.

[0009] The swing frame is provided with a spring on each side, and the other ends of the two springs are connected with the bottom of the accommodating groove.

[0010] The other end of the probe block is provided with an arc surface, and the accommodating groove is arranged on the arc surface.

[0011] One end is provided with a connecting hole one, one end of the connecting block is provided with a connecting hole two, and the connecting hole one and the connecting hole two are movably connected through a limiting bolt which is sequentially penetrated;

[0012] The limiting bolt comprises a screw rod which is sequentially penetrated into the connecting hole one and the connecting hole two, a head connected with one end of the screw rod, and a hand nut connected with the other end of the screw rod, and the side of the head is provided with a tooth block one; the connecting hole one comprises a limiting groove for accommodating the head and a through groove allowing the tooth block one to pass through, the side of the connecting hole two is provided with a tooth block two, and the tooth block two is in separable contact with the tooth block one.

[0013] The connecting seat has the same structure as one end of the probe block, the two ends of the connecting block have the same structure, and the connecting seat and the connecting block are hingedly connected through a limiting bolt.

[0014] The bottom side of the handheld main body is provided with an illuminating lamp and a camera, the illuminating lamp is electrically connected with a flaw detection switch, the top side of the handheld main body is provided with a shooting button for controlling photographing, the inside of the handheld main body is provided with a controller which is electrically connected with the camera, and the controller is provided with a communication module.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] (1) through the setting of the swing frame, the roller swings in the accommodating groove of the probe block, so that the welds at different positions and angles in the pressure container are adhered, the pressure container magnetic particle flaw detection device is more smooth when walking in the pressure container, the setting of the arc surface makes the probe block more adhere to the inside of the pressure container, and the detection effect is better, so that the adaptability of the pressure container magnetic particle flaw detection device to the pressure container is stronger.

[0017] (2) through the setting of the camera and the shooting button, the photos of the defective welds can be uploaded to the mobile phone through the controller, the weld defects are further observed and analyzed, and the welds are treated, so that the mobile phone is not needed to be used for photographing, and the use of the magnetic particle flaw detection device is more convenient and fast.

[0018] (3) through the limit bolt tooth block one and the connection hole two tooth block two combination, make the connection between the connecting seat and the connecting block, the connecting block and the probe block more stable and reliable, improve the stability of the magnetic particle flaw detection device operation. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic diagram of the utility model;

[0020] Figure 2 is the side view of the utility model probe block;

[0021] Figure 3 is the structure schematic diagram of the utility model containing groove;

[0022] Figure 4 is the structure schematic diagram of the utility model swing frame;

[0023] Figure 5 is the structure schematic diagram of the utility model connecting hole one;

[0024] Figure 6 is the structure schematic diagram of the utility model limit bolt.

[0025] In the drawing, 1, handheld main body;11, flaw detection switch;2, connecting seat;3, connecting block;31, connecting hole two;311, tooth block two;4, probe assembly;41, probe block;411, containing groove;412, arc surface;413, connecting hole one;4131, limiting groove;4132, through groove;42, roller;43, swing frame;44, spring;45, connecting shaft;46, rotating shaft;5, limit bolt;51, screw rod;52, head;53, hand screw cap;54, tooth block one;6, illuminating lamp;7, camera;71, shooting button. DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical features of the scheme, below through specific implementation, the scheme is described.

[0027] Referring to Figures 1-6 A pressure vessel magnetic particle flaw detection device, including handheld main body 1, still including respectively setting in the connecting seat 2 of handheld main body 1 both ends, the connecting block 3 of one end with connecting seat 2 movable connection, with the probe assembly 4 of connecting block 3 another end movable connection;

[0028] The probe assembly 4 includes the probe block 41 of one end with connecting block 3 hinged, setting roller 42 in the other end of probe block 41, the swing frame 43 is movably arranged on the probe block 41, the roller 42 rotationally arranged on the swing frame 43.

[0029] The other end of the probe block 41 is provided with a containing groove 411, a connecting shaft 45 is arranged in the containing groove 411, and the swing frame 43 is swingingly arranged on the connecting shaft 45.

[0030] Both ends of the swing frame 43 are provided with a rotating shaft 46, the roller 42 is rotatably arranged on the rotating shaft 46, and both ends of the roller 42 are provided with a round corner.

[0031] Both sides of the swing frame 43 are respectively connected with springs 44, and the other ends of the two springs 44 are respectively connected with the bottom of the containing groove 411.

[0032] The other end of the probe block 41 is provided with an arc surface 412, and the containing groove 411 is arranged on the arc surface 412.

[0033] One end is provided with a connecting hole one 413, one end of the connecting block 3 is provided with a connecting hole two 31, and the connecting hole one 413 and the connecting hole two 31 are movably connected through a limiting bolt 5 which is sequentially penetrated.

[0034] The limiting bolt 5 comprises a screw rod 51 which is sequentially penetrated into the connecting hole one 413 and the connecting hole two 31, a head 52 connected with one end of the screw rod 51, a hand screw nut 53 connected with the other end of the screw rod 51, and a tooth block one 54 arranged on the side of the head 52; the connecting hole one 413 comprises a limiting groove 4131 for accommodating the head 52 and a through groove 4132 for allowing the tooth block one 54 to pass through, and the side of the connecting hole two 31 is provided with a tooth block two 311 which is in separable contact with the tooth block one 54.

[0035] The connecting seat 2 has the same structure as one end of the probe block 41, both ends of the connecting block 3 have the same structure, and the connecting seat 2 and the connecting block 3 are hingedly connected through the limiting bolt 5.

[0036] The bottom side of the handheld main body 1 is respectively provided with an illuminating lamp 6 and a camera 7, the illuminating lamp 6 is electrically connected with a flaw detection switch 11, the top side of the handheld main body 1 is provided with a shooting button 71 for controlling photographing, the inside of the handheld main body 1 is provided with a controller which is electrically connected with the camera 7, and the controller is provided with a communication module.

[0037] The roller 42, the swing frame 43, the connecting shaft 45 and the rotating shaft 46 are all made of non-magnetic materials.

[0038] The specific working process of the utility model:

[0039] In use, the tooth block one 54 of the limiting bolt 5 is in contact with the tooth block two 311 after passing through the limiting groove 4131 and the groove 4132, so that the connection between the connecting seat 2 and the connecting block 3 and the connection between the connecting block 3 and the probe block 41 is more stable and reliable, after adjusting the angle of the probe block 41, spraying contrast enhancer and magnetic suspension liquid at the weld position, connecting the power supply of the pressure vessel magnetic particle testing device, starting the testing switch 11, and making the arc surface 412 of the probe block 41 close to the two sides of the weld inside the pressure vessel to magnetize and vibrate, observing the change of the magnetic suspension liquid at the weld position after being magnetized by the magnetic field, and making the brightness of the weld position meet the detection requirements through the illuminating lamp 6, if the weld defect is found, pressing the shooting button 71 to take a photo, and uploading the photo to the mobile phone through the controller, if there is no defect at the weld, holding the hand-held main body 1 to make the two rollers 42 roll along the two sides of the weld for continuous weld defect detection.

[0040] Through the setting of the camera 7 and the shooting button 71, the photo of the defective weld can be uploaded to the mobile phone through the controller, and the weld defect can be further observed and analyzed to process the weld, so that the magnetic particle testing device is more convenient and fast to use without using a mobile phone for shooting separately.

[0041] Through the combination of the tooth block one 54 on the limiting bolt 5 and the tooth block two 311 on the connecting hole two 31, the connection between the connecting seat 2 and the connecting block 3 and the connection between the connecting block 3 and the probe block 41 is more stable and reliable, and the stability of the magnetic particle testing device in operation is improved.

[0042] The technical features not described in the utility model can be realized by or using the prior art, which will not be repeated here, of course, the above description is not a limitation of the utility model, and the utility model is not limited to the above examples, the changes, modifications, additions or replacements made by ordinary skilled in the art within the essential scope of the utility model should also belong to the protection scope of the utility model.

Claims

1. A magnetic particle testing device for pressure vessels comprising a hand-held main body (1), characterized in that, It also includes connecting seats (2) arranged at both ends of the handheld body (1), a connecting block (3) movably connected with one end of the connecting seat (2), and a probe assembly (4) movably connected with the other end of the connecting block (3). The probe assembly (4) includes a probe block (41) hingedly connected with one end of the connecting block (3), a roller (42) arranged at the other end of the probe block (41), and a swing frame (43) movably arranged on the probe block (41), wherein the roller (42) is rotatably arranged on the swing frame (43).

2. The pressure vessel magnetic particle inspection apparatus of claim 1, wherein The other end of the probe block (41) is provided with a receiving groove (411), and a connecting shaft (45) is arranged in the receiving groove (411), wherein the swing frame (43) is swingably arranged on the connecting shaft (45).

3. The pressure vessel magnetic particle inspection apparatus of claim 2, wherein A rotating shaft (46) is arranged between the two ends of the swing frame (43), and the roller (42) is rotatably arranged on the rotating shaft (46), wherein the two ends of the roller (42) are provided with rounded corners.

4. The pressure vessel magnetic particle inspection apparatus of claim 3, wherein The two sides of the swing frame (43) are respectively connected with springs (44), and the other ends of the two springs (44) are respectively connected with the bottom of the receiving groove (411).

5. The pressure vessel magnetic particle inspection apparatus of claim 4, wherein The other end of the probe block (41) is provided with an arc surface (412), and the receiving groove (411) is arranged on the arc surface (412).

6. The pressure vessel magnetic particle inspection apparatus of claim 1, wherein One end of the probe block (41) is provided with a connecting hole one (413), one end of the connecting block (3) is provided with a connecting hole two (31), and the connecting hole one (413) and the connecting hole two (31) are movably connected through a limiting bolt (5) sequentially penetrating into the connecting hole one (413) and the connecting hole two (31). The limiting bolt (5) includes a screw rod (51) sequentially penetrating into the connecting hole one (413) and the connecting hole two (31), a head (52) connected with one end of the screw rod (51), and a hand screw cap (53) connected with the other end of the screw rod (51), wherein the side of the head (52) is provided with a tooth block one (54); the connecting hole one (413) includes a limiting groove (4131) for accommodating the head (52) and a through groove (4132) allowing the tooth block one (54) to pass through, and the side of the connecting hole two (31) is provided with a tooth block two (311), wherein the tooth block two (311) is in separable contact with the tooth block one (54).

7. The pressure vessel magnetic particle inspection apparatus of claim 6, wherein The structure of the connecting seat (2) is the same as one end of the probe block (41), the structures of the two ends of the connecting block (3) are the same, and the connecting seat (2) and the connecting block (3) are hingedly connected through the limiting bolt (5).

8. The pressure vessel magnetic particle inspection apparatus of claim 1, wherein The bottom side of the handheld body (1) is respectively provided with an illuminating lamp (6) and a camera (7), the illuminating lamp (6) is electrically connected with a flaw detection switch (11), the top side of the handheld body (1) is provided with a shooting button (71) for controlling photographing, the inside of the handheld body (1) is provided with a controller electrically connected with the camera (7), and the controller is provided with a communication module.

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