Magnet assembly of high-precision magnetic particle flaw detector

Abstract

The utility model discloses a magnet assembly of a high-precision magnetic particle flaw detector, which relates to the technical field of magnetic particle flaw detection and comprises a handle and a magnetic head, the bottom of the handle is fixedly connected with the magnetic head, one side of the magnetic head is fixedly connected with a supporting mechanism, and the bottom of the supporting mechanism is rotatably connected with a rolling ball. The supporting mechanisms are symmetrically distributed on the left side and the right side of the magnet assembly. Compared with an existing common magnet assembly, the high-precision magnet assembly of the magnetic particle flaw detector has the advantages that the load bearing pressure of the handheld magnetic particle flaw detector is reduced, the contact area with a to-be-detected object is increased, the stability of the magnetic particle flaw detector is improved, and the to-be-detected object is accurately detected by the magnetic particle flaw detector; the supporting mechanism provides convenience for the placement of the magnetic particle flaw detector, so that the magnetic particle flaw detector can be placed uprightly, the influence on the magnetism caused by the friction between components of the magnetic particle flaw detector and other substances is avoided, the friction between the supporting mechanism and a detection surface is reduced by the rolling ball, and the detection surface is protected while the moving smoothness is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic particle flaw detection, specifically to a high-precision magnetic particle flaw detector magnet assembly. BACKGROUND

[0002] Magnetic particle flaw detection is to use the discontinuity of the ferromagnetic material after magnetization to make the magnetic force line of the workpiece surface and the near surface locally distorted and produce a magnetic leakage field (i.e. the magnetic field formed when the magnetic induction line leaves and enters the surface) to adsorb the magnetic powder applied on the workpiece surface, form a visible magnetic mark under suitable light, and show the position, shape and size of discontinuity.

[0003] For example, application No. CN202222974518.8, a magnetic particle flaw detector, includes a body, the body is the working part of the magnetic yoke, both ends of the body are hinged with a first skeleton, the two first skeletons are arranged in parallel, the end of the first skeleton away from the body is hinged with a second skeleton, the hinged axis of the second skeleton and the first skeleton is parallel to the hinged axis of the first skeleton and the body, the end of the second skeleton away from the first skeleton is hinged with a third skeleton, the hinged axis of the third skeleton and the second skeleton is perpendicular to the hinged axis of the first skeleton and the body, the end of the third skeleton away from the second skeleton is fixedly connected with a universal joint, the end of the universal joint away from the third skeleton is installed with a contact end, this application uses the universal joint to make the bottom end of the contact end contact the metal piece to be measured, reduces the contact between the edge or tip of the contact end and the metal piece to be measured, and reduces the possibility of leaving scratches on the surface of the metal piece to be measured. However, when the magnet assembly detects the object to be detected, the handheld machine detects the specified part, and there is no supporting point to appear unstable, which affects the detection result, and if the magnetic property is weak during the detection process, it is difficult to adsorb the magnetic powder, which affects the detection progress.

[0004] Therefore, in view of the above, the existing structure is improved, and a high-precision magnetic particle flaw detector magnet assembly is provided. Utility model content

[0005] The utility model aims at providing a high-precision magnetic particle flaw detector magnet assembly to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high-precision magnetic particle flaw detector magnet assembly, including handle and magnetic head, the bottom of handle is fixedly connected with magnetic head, and the side of magnetic head is fixedly connected with supporting mechanism, the bottom of supporting mechanism is rotatably connected with rolling ball, and the left and right sides of the magnet assembly are symmetrically distributed.

[0007] Preferably, the support mechanism comprises a connecting block fixedly connected to the left and right sides of the magnetic head, and a rotating block is rotatably connected to the outer surface of the connecting block, the bottom of the rotating block is fixedly connected with a retractable rod, and the bottom of the retractable rod is fixedly connected with a bottom plate.

[0008] Preferably, the bottom of the magnetic head is provided with a first skeleton, and a mounting shaft is rotatably connected to the bottom outer surface of the first skeleton.

[0009] Preferably, the bottom of the mounting shaft is fixedly connected with a second skeleton, and a mounting hole is formed in the bottom inner surface of the second skeleton.

[0010] Preferably, one side of the second skeleton is fixedly connected with an increasing frame, and the inner surface of the increasing frame is fixedly connected with an elastic block.

[0011] Preferably, the bottom of the handle is fixedly connected with a key, and the bottom of the handle is fixedly connected with a detection lamp at a position symmetrical to the key.

[0012] Preferably, one end of the handle is fixedly connected with a connecting power supply, and the outer surface of the handle is fixedly connected with an anti-skid layer.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The utility model discloses a support mechanism and a rolling ball are arranged, when detecting, the support mechanism is adjusted to a proper angle, the weight pressure of the handheld magnetic particle flaw detector is reduced, the contact area with the object to be detected is increased, the stability of the magnetic particle flaw detector is improved, the magnetic particle flaw detector can detect the object to be detected more accurately, and after detection, the support mechanism is convenient for placing the magnetic particle flaw detector, so that the magnetic particle flaw detector can be placed vertically, the components of the magnetic particle flaw detector are prevented from being affected by friction with other substances and the magnetic property is affected, the rolling balls are uniformly distributed at the bottom of the support mechanism, when moving the magnetic particle flaw detector to detect different positions of the object to be detected, the rolling balls reduce the friction between the support mechanism and the detection surface, improve the smoothness of movement, and protect the detection surface.

[0015] 2. The utility model discloses an increasing frame and an elastic block in the increasing frame are arranged, when the magnetic property of the magnetic particle flaw detector is weakened, the adsorption force is reduced, proper magnetic blocks can be arranged in the increasing frame during detection, the magnetic property of the magnetic particle flaw detector is increased, the operator can judge conveniently, the elastic block can fix magnetic blocks of different sizes, the installation range of the increasing frame is expanded, and proper magnetic blocks of different sizes can be installed according to actual needs. DRAWINGS

[0016] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is the overall side view structure schematic diagram of the utility model;

[0018] Figure 3 It is the structure schematic diagram of the first framework 5 and the second framework 6 of the utility model;

[0019] Figure 4 It is the structure schematic diagram of the support mechanism 3 of the utility model.

[0020] In the drawing: 1, handle; 2, magnetic head; 3, support mechanism; 301, connecting block; 302, rotating block; 303, retractable rod; 304, bottom plate; 4, rolling ball; 5, first framework; 6, mounting shaft; 7, second framework; 8, mounting hole; 9, increase frame; 10, elastic block; 11, key; 12, detection lamp; 13, connecting power supply. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] As Figures 1-2 shown, a kind of high-precision magnetic particle flaw detector magnet assembly, including handle 1 and magnetic head 2, the bottom of the handle 1 is fixedly connected with magnetic head 2, and the side of magnetic head 2 is fixedly connected with support mechanism 3, the bottom of the support mechanism 3 is rotatably connected with rolling ball 4, and support mechanism 3 is symmetrically distributed on the left and right sides of magnet assembly, the bottom of handle 1 is fixedly connected with two groups of identical magnetic head 2 and is symmetrically parallelly distributed, support mechanism 3 plays the role of auxiliary support when detecting in magnetic particle flaw detector, improves the stability of magnetic particle flaw detector detection, and multiple rolling balls 4 are evenly distributed in the bottom of each support mechanism 3, reduce the resistance of magnetic particle flaw detector movement.

[0023] As Figure 4 shown, support mechanism 3 includes connecting block 301 fixedly connected on the left and right sides of magnetic head 2, and rotating block 302 is rotatably connected on the outer surface of connecting block 301, the bottom of rotating block 302 is fixedly connected with retractable rod 303, and the bottom of retractable rod 303 is fixedly connected with bottom plate 304, one side of rotating block 302 is provided with fastening bolt, and fastening bolt penetrates connecting block 301 and rotating block 302, by loosening fastening bolt to change the angle of rotating block 302, it is convenient to store retractable rod 303 in the bottom of rotating block 302, reduce the floor space when not using magnetic particle flaw detector.

[0024] Further, the bottom of the magnetic head 2 is provided with a first skeleton 5, and the bottom outer surface of the first skeleton 5 is rotatably connected with a mounting shaft 6, and the bottom of the first skeleton 5 and the second skeleton 7 is provided with a mounting hole 8, which can increase the length of the first skeleton 5 and the second skeleton 7 through the mounting hole 8 according to the need, and the mounting shaft 6 changes the angle between the first skeleton 5 and the second skeleton 7, which is convenient for detecting different shapes of the detected object.

[0025] Further, the bottom of the mounting shaft 6 is fixedly connected with the second skeleton 7, and the bottom inner surface of the second skeleton 7 is provided with a mounting hole 8, and one side of the second skeleton 7 is fixedly connected with an increasing frame 9, and the inner surface of the increasing frame 9 is fixedly connected with an elastic block 10, and the first skeleton 5 is also fixedly connected with the increasing frame 9, which can increase the magnetic block, and the elastic block 10 is symmetrically distributed, and the different sizes of the magnetic block inside the increasing frame 9 are fixed.

[0026] Further, the bottom of the handle 1 is fixedly connected with a key 11, and the bottom of the handle 1 is fixedly connected with a detection lamp 12 at a position symmetrical to the key 11, and one end of the handle 1 is fixedly connected with a connecting power supply 13, and the outer surface of the handle 1 is fixedly connected with an anti-skid layer, and the detection lamp 12 increases the brightness, and the staff does not need to use other lighting equipment, which improves the convenience, and the connecting port of the connecting power supply 13 is provided with a protective layer, which avoids the wire breakage.

[0027] Working principle: when using the high-precision magnetic particle flaw detector magnet assembly, first, the operator holds the handle 1, rotates the rotating block 302 outside the connecting block 301 of the supporting mechanism 3 to the appropriate angle, and then adjusts the retractable rod 303 to the appropriate length, so that the rolling ball 4 at the bottom of the bottom plate 304 is detected with the contact surface, and then according to the shape of the detected object, the second skeleton 7 at the bottom of the mounting shaft 6 is rotated to make the second skeleton 7 and the first skeleton 5 have an appropriate intersection angle, and if the length of the flaw detector is not enough, the supporting frame can be increased through the mounting hole 8, and finally the power supply 13 is connected to the power supply, the key 11 and the detection lamp 12 are started, and the magnetic particle flaw detection work is started, and if the magnetic property of the flaw detector is poor during the detection process, the magnetic block can be added to one side of the elastic block 10 inside the increasing frame 9 to increase the magnetic attraction effect, which is the working principle of the high-precision magnetic particle flaw detector magnet assembly.

Claims

1. A high-precision magnetic particle flaw detector magnet assembly comprising a handle (1) and a magnetic head (2), characterized in that, The bottom of the handle (1) is fixedly connected with a magnetic head (2), one side of the magnetic head (2) is fixedly connected with a supporting mechanism (3), the bottom of the supporting mechanism (3) is rotatably connected with a rolling ball (4), and the supporting mechanism (3) is symmetrically distributed on the left and right sides of the magnet assembly.

2. The magnet assembly of claim 1, wherein The supporting mechanism (3) comprises left and right connecting blocks (301) fixedly connected with the magnetic head (2), and rotating blocks (302) rotatably connected with the outer surfaces of the connecting blocks (301), the bottom of each rotating block (302) is fixedly connected with a retractable rod (303), and the bottom of each retractable rod (303) is fixedly connected with a bottom plate (304).

3. The magnet assembly of claim 1, wherein the magnet assembly is a high-precision magnetic particle inspection machine magnet assembly. The bottom of the magnetic head (2) is provided with a first skeleton (5), and the bottom outer surface of the first skeleton (5) is rotatably connected with a mounting shaft (6).

4. The magnet assembly of claim 3, wherein the magnet assembly is configured to provide a magnetic field having a magnetic field strength of 0.5 to 1.5 T. The bottom of the mounting shaft (6) is fixedly connected with a second skeleton (7), and the bottom inner surface of the second skeleton (7) is provided with a mounting hole (8).

5. The magnet assembly of claim 4, wherein the magnet assembly is a high-precision magnetic particle inspection machine magnet assembly. One side of the second skeleton (7) is fixedly connected with an increasing frame (9), and the inner surface of the increasing frame (9) is fixedly connected with an elastic block (10).

6. The magnet assembly of claim 1 wherein, The bottom of the handle (1) is fixedly connected with a key (11), and the bottom of the handle (1) is fixedly connected with a detection lamp (12) symmetrically with the key (11).

7. The magnet assembly of claim 1 wherein the magnet assembly is a high-precision magnetic particle inspection machine magnet assembly. One end of the handle (1) is fixedly connected with a power supply (13), and the outer surface of the handle (1) is fixedly connected with an anti-skid layer.

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