Direct-current ultralow-frequency demagnetizing magnetic defect detector

Abstract

The utility model discloses a direct current ultra-low frequency demagnetizing magnetic defect detector, which comprises a base, two sides of the upper surface of the base are fixedly connected with protective frames, opposite sides of the two protective frames are fixedly connected with a plurality of damping buffer pieces, one sides of the damping buffer pieces are fixedly connected with a connecting plate, and the connecting plate is fixedly connected with a connecting rod. A connecting plate is fixedly connected to one side of the base, a low-frequency magnetic defect detector body is fixedly connected to one side of the connecting plate, adjusting bolts are in threaded connection to the two sides of the upper surface of the base, bearings are rotationally connected to the lower ends of the adjusting bolts, a supporting plate is fixedly connected to the lower surfaces of the bearings, and fixed limiting rods are fixedly connected to the two sides of the upper surface of the supporting plate. The low-frequency magnetic defect detector has the advantages that when the defect detector is impacted by external force, the protection frame can prevent the surface of the low-frequency magnetic defect detector body from being damaged, and the damping buffer piece can relieve the impact force.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic particle flaw detection equipment, in particular to a direct current ultra-low frequency demagnetization magnetic particle flaw detector. Background Art

[0002] The magnetization principle of the DC ultra-low frequency demagnetization magnetic particle flaw detector is: after the workpiece is magnetized, due to the existence of material discontinuity, the magnetic lines of force on the surface and near the surface of the workpiece are locally distorted at the material discontinuity, generating a leakage magnetic field, which adsorbs the magnetic powder applied to the surface of the workpiece, forming magnetic marks that are visible under appropriate light. This shows the location, shape and size of the material discontinuity. By observing and analyzing these magnetic marks, we can get an evaluation of the defects that affect the performance of the product.

[0003] The existing DC ultra-low frequency demagnetization magnetic particle flaw detector has an unreasonable protective structure. When the flaw detector is impacted by external force, the surface of the flaw detector body is easily damaged. It has poor practical safety and is inconvenient to move, and cannot meet the use requirements well. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a direct current ultra-low frequency demagnetization magnetic particle flaw detector.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A DC ultra-low frequency demagnetization magnetic particle flaw detector comprises a base, both sides of the upper surface of the base are fixedly connected with protective frames, a plurality of damping buffers are fixedly connected with opposite sides of the two protective frames, one side of the damping buffer is fixedly connected with a connecting plate, one side of the connecting plate is fixedly connected with a low-frequency magnetic particle flaw detector body, both sides of the upper surface of the base are threadedly connected with adjusting bolts, the lower end of the adjusting bolt is rotatably connected with a bearing, the lower surface of the bearing is fixedly connected with a support plate, both sides of the upper surface of the support plate are fixedly connected with fixed limit rods, the interior of the fixed limit rods is movably connected with a movable limit rod, and the upper surface of the movable limit rod is fixedly connected to the base.

[0007] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: an installation groove is provided on the upper surface of the low-frequency magnetic particle flaw detector body, a handle is fixedly installed inside the installation groove, placement grooves are provided on both sides of the upper surface of the low-frequency magnetic particle flaw detector body, and rotating seats are fixedly connected on both sides of the upper surface of the low-frequency magnetic particle flaw detector body. The interiors of the two rotating seats are rotatably connected to bottom rods, and the interiors of the two bottom rods are movably connected to adjusting rods, a grab rod is fixedly connected between the two adjusting rods, and moving wheels are fixedly connected to the lower surface of the base, and the number of the moving wheels is four.

[0008] In order to better achieve the above-mentioned purpose, the utility model adopts a further technical solution: a control panel is fixedly connected to one side of the front face of the low-frequency magnetic particle flaw detector body, an external interface is fixedly connected to the other side of the front face of the low-frequency magnetic particle flaw detector body, and heat dissipation ports are opened on both sides of the low-frequency magnetic particle flaw detector body.

[0009] The beneficial effects of the utility model are as follows: by setting a protective frame and a damping buffer, the protective frame and the damping buffer can protect the main body of the low-frequency magnetic particle flaw detector. When the flaw detector is impacted by external force, the protective frame can prevent the surface of the main body of the low-frequency magnetic particle flaw detector from being damaged, and the damping buffer can alleviate the impact force to avoid damage to the parts inside the main body of the low-frequency magnetic particle flaw detector, so that the flaw detector will not be easily damaged when it is transferred for outdoor use, thereby increasing the safety of the flaw detector. By setting a support plate and a moving wheel, the flaw detector can be transferred, which is simple and convenient to operate, has strong applicability, works stably, saves the physical strength of the staff, and increases the practicality of the flaw detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural schematic diagram of the DC ultra-low frequency demagnetization magnetic particle flaw detector proposed by the utility model;

[0011] Figure 2 This is a schematic structural diagram of the protection frame of the DC ultra-low frequency demagnetization magnetic particle flaw detector proposed by the utility model;

[0012] Figure 3 The utility model provides a schematic structural diagram of the low-frequency magnetic particle flaw detector body of the DC ultra-low frequency demagnetization magnetic particle flaw detector.

[0013] In the figure: 1 base, 2 protection frame, 3 damping buffer, 4 connecting plate, 5 low-frequency magnetic particle flaw detector body, 6 adjusting bolts, 7 bearings, 8 support plates, 9 fixed limit rods, 10 movable limit rods, 11 installation slots, 12 handles, 13 placement slots, 14 rotating seat, 15 bottom rods, 16 adjustment rods, 17 grab rods, 18 moving wheels, 19 control panel, 20 external interfaces, 21 heat dissipation ports. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0015] Reference Figure 1-Figure 3As shown, the DC ultra-low frequency demagnetization magnetic particle flaw detector includes a base 1, both sides of the upper surface of the base 1 are fixedly connected with protective frames 2, the opposite sides of the two protective frames 2 are fixedly connected with a plurality of damping buffers 3, one side of the damping buffer 3 is fixedly connected with a connecting plate 4, one side of the connecting plate 4 is fixedly connected with a low-frequency magnetic particle flaw detector body 5, both sides of the upper surface of the base 1 are threadedly connected with adjusting bolts 6, the lower end of the adjusting bolts 6 is rotatably connected with a bearing 7, the lower surface of the bearing 7 is fixedly connected with a support plate 8, both sides of the upper surface of the support plate 8 are fixedly connected with fixed limit rods 9, the fixed limit rods 9 are movably connected with movable limit rods 10 inside, and the upper surface of the movable limit rods 10 is fixedly connected to the base 1.

[0016] In the utility model, a mounting groove 11 is provided on the upper surface of the main body 5 of the low-frequency magnetic particle flaw detector, a handle 12 is fixedly installed inside the mounting groove 11, placement grooves 13 are provided on both sides of the upper surface of the main body 5 of the low-frequency magnetic particle flaw detector, both sides of the upper surface of the main body 5 of the low-frequency magnetic particle flaw detector are fixedly connected with rotating seats 14, the interiors of the two rotating seats 14 are rotatably connected with bottom rods 15, the interiors of the two bottom rods 15 are movably connected with adjusting rods 16, a grab rod 17 is fixedly connected between the two adjusting rods 16, the bottom rod 15 and the adjusting rod 16 are stored through the placement groove 13, and the device is driven to move in different ways through the handle 12 and the grab rod 17; the lower surface of the base 1 is fixedly connected with moving wheels 18, and the number of the moving wheels 18 is four.

[0017] A control panel 19 is fixedly connected to one side of the front face of the low-frequency magnetic particle flaw detector main body 5, and an external interface 20 is fixedly connected to the other side of the front face of the low-frequency magnetic particle flaw detector main body 5. Heat dissipation ports 21 are provided on both sides of the low-frequency magnetic particle flaw detector main body 5. The device is operated through the control panel 19, the detection gun is connected to the low-frequency magnetic particle flaw detector main body 5 through the external interface 20, and the heat of the low-frequency magnetic particle flaw detector main body 5 is dissipated through the heat dissipation ports 21.

[0018] When the utility model is used, first grasp the handle 12 to move the flaw detector to a relatively flat surface, rotate the adjusting bolt 6 to drive the support plate 8 to move upward, until the flaw detector support column is moved by the moving wheel 18, and then the bottom rod 15 is taken out from the placement groove 13 through the rotating seat 14, and the adjusting rod 16 is pulled to a suitable position. After that, grasp the grasping rod 17 and drive the flaw detector to move through the moving wheel 18. During the movement, the protective frame 2 and the damping buffer 3 can protect the low-frequency magnetic particle flaw detector body 5, and the damping buffer 3 can alleviate the impact force to avoid damage to the parts inside the low-frequency magnetic particle flaw detector body 5. Finally, after reaching the target point, adjust the bolt 6 again to drive the support plate 8 to move downward to fix the flaw detector support in place, connect the detection gun to the low-frequency magnetic particle flaw detector body 5 through the external interface 20, operate the equipment through the control panel 19, and repeat the above steps to transfer the flaw detector after the detection is completed.

Claims

1. A direct current ultra-low frequency demagnetization magnetic particle flaw detector, comprising a base (1), characterized in that: Both sides of the upper surface of the base (1) are fixedly connected to protective frames (2), and a plurality of damping buffers (3) are fixedly connected to opposite sides of the two protective frames (2), and one side of the damping buffer (3) is fixedly connected to a connecting plate (4), and one side of the connecting plate (4) is fixedly connected to a low-frequency magnetic particle flaw detector body (5), and both sides of the upper surface of the base (1) are threadedly connected to adjusting bolts (6), and the lower end of the adjusting bolt (6) is rotatably connected to a bearing (7), and the lower surface of the bearing (7) is fixedly connected to a support plate (8), and both sides of the upper surface of the support plate (8) are fixedly connected to fixed limit rods (9), and the fixed limit rods (9) are movably connected to a movable limit rod (10) inside, and the upper surface of the movable limit rod (10) is fixedly connected to the base (1).

2. The DC ultra-low frequency demagnetization magnetic particle flaw detector according to claim 1, characterized in that: The upper surface of the low-frequency magnetic particle flaw detector body (5) is provided with a mounting groove (11), a handle (12) is fixedly installed inside the mounting groove (11), placement grooves (13) are provided on both sides of the upper surface of the low-frequency magnetic particle flaw detector body (5), rotating seats (14) are fixedly connected to both sides of the upper surface of the low-frequency magnetic particle flaw detector body (5), bottom rods (15) are rotatably connected to the inside of the two rotating seats (14), adjustment rods (16) are movably connected to the inside of the two bottom rods (15), and a grab rod (17) is fixedly connected between the two adjustment rods (16), and the lower surface of the base (1) is fixedly connected to moving wheels (18), and the number of the moving wheels (18) is four.

3. The DC ultra-low frequency demagnetization magnetic particle flaw detector according to claim 1, characterized in that: A control panel (19) is fixedly connected to one side of the front face of the low-frequency magnetic particle flaw detector body (5), an external interface (20) is fixedly connected to the other side of the front face of the low-frequency magnetic particle flaw detector body (5), and heat dissipation ports (21) are provided on both sides of the low-frequency magnetic particle flaw detector body (5).

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