Portable rechargeable alternating current magnet yoke flaw detector

Abstract

The utility model relates to the technical field of magnet yoke flaw detectors, and discloses a portable charging alternating current magnet yoke flaw detector which comprises a through groove formed in the bottom of a supporting block; the motor is arranged on the left side wall of the supporting block through a frame, and an output shaft of the motor penetrates through and extends into the through groove; the reciprocating lead screw is rotationally connected between the inner walls of the through groove, and one end of the reciprocating lead screw is fixedly connected with an output shaft of the motor; the threaded block is in threaded connection with the reciprocating screw rod; and the spraying mechanism is arranged on the supporting block and the threaded block. The bottom end of a metal magnet yoke column is attached to the surface of a workpiece, a motor is started through a switch and drives a reciprocating lead screw to rotate, a threaded block in threaded connection with the reciprocating lead screw drives a spraying mechanism to reciprocate in the extending direction of the motor, and at the moment, the spraying mechanism sprays magnetic powder to the surface of the workpiece; the spray head at the bottom end of the cross beam is matched with the movable threaded block to achieve the left-right reciprocating spraying effect, and after magnetic powder spraying is completed, a switch is pressed down to achieve flaw detection of the workpiece.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of magnetic yoke flaw detector, concretely to a portable charging alternating current magnetic yoke flaw detector. BACKGROUND

[0002] The charging type alternating current magnetic yoke flaw detector is a kind of equipment using magnetic yoke to magnetize flaw detection of ferromagnetic material, it is powered by portable charging power supply, and can generate alternating magnetic field without external power supply, and is widely used in oil field, shipbuilding, internal combustion engine accessories, coal mine, machinery, standard parts, oil pump nozzle, aircraft manufacturing, automobile parts, chemical industry, boiler pressure vessel and other industries.It is especially suitable for field operation without power supply and flaw detection operation in complex environments such as containers, bridges and pipelines that cannot be accessed under high pressure.

[0003] The existing magnetic yoke flaw detector needs to be used by the staff to spray a layer of magnetic powder on the detection workpiece in advance when detecting, so that the staff needs to carry an additional magnetic powder spraying device when using the magnetic yoke flaw detector outdoors, which is relatively inconvenient. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the defects of the prior art, the utility model provides a portable charging alternating current magnetic yoke flaw detector, which has the advantages of convenient carrying and using, and solves the problem that the existing magnetic yoke flaw detector needs the staff to carry an additional magnetic powder spraying device before detection, which is relatively complex.

[0006] (II) technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: a portable charging alternating current magnetic yoke flaw detector, comprising a main body assembly, the main body assembly comprises:

[0008] A metal magnetic yoke column is symmetrically arranged at the bottom of the supporting block;

[0009] A handle is arranged at the top of the supporting block;

[0010] A switch is arranged on the bottom surface of the handle;

[0011] A processing assembly is arranged on the supporting block and the switch, and the processing assembly comprises:

[0012] A through slot is arranged at the bottom of the supporting block;

[0013] A motor is arranged on the left side wall of the supporting block through a shelf, and the motor output shaft penetrates and extends into the through slot;

[0014] A reciprocating screw rod is rotatably connected between the inner walls of the through slot, and one end of the reciprocating screw rod is fixedly connected with the motor output shaft;

[0015] threaded block, threaded connection on the reciprocating screw rod;

[0016] spraying mechanism, provided on the support block and the threaded block.

[0017] Preferably, the spraying mechanism comprises:

[0018] motorized push rod, provided at the bottom of the threaded block, the motor, the motorized push rod and the switch are electrically connected;

[0019] crossbeam, provided at the bottom of the motorized push rod;

[0020] spray head, symmetrically and through connection at the bottom of the crossbeam;

[0021] hose, one end through connection at the top of the crossbeam by air pump;

[0022] groove, provided on the support block;

[0023] storage barrel, provided on the right side wall of the support block, the other end of the hose passes through the groove and is through connection with the storage barrel.

[0024] Preferably, the groove edge has an arc surface.

[0025] Preferably, the inner wall of the groove is rotationally connected with a rotating shaft by a spiral spring, and the hose is wound outside the rotating shaft.

[0026] Preferably, a protective cover is provided on the crossbeam.

[0027] Preferably, the width of the through slot is equal to the width of the threaded block.

[0028] (Three) beneficial effects

[0029] Compared with the prior art, the utility model provides a portable charging alternating current magnetic yoke flaw detector, has the following beneficial effects:

[0030] The magnetic yoke flaw detector has the advantages of being convenient to carry and use. The metal magnetic yoke column bottom end is attached to the workpiece surface. The motor is started through the switch. The motor drives the reciprocating screw rod to rotate. The threaded block threaded on the reciprocating screw rod drives the spraying mechanism to reciprocate along the motor extension direction. At this time, the spraying mechanism sprays the magnetic powder on the workpiece surface. The spray head at the bottom of the crossbeam cooperates with the moving threaded block to realize the effect of left and right reciprocating spraying. After the magnetic powder spraying is completed, the switch is pressed to realize the flaw detection of the workpiece. The problem that the existing magnetic yoke flaw detector needs the staff to additionally carry the magnetic powder spraying device before flaw detection is solved. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the utility model.

[0032] Figure 2 This is a bottom view of the protective cover structure in this utility model;

[0033] Figure 3 This is a front view cross-sectional view of the through groove structure in this utility model;

[0034] Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0035] In the picture:

[0036] 1. Main component; 11. Support block; 12. Metal magnetic yoke column; 13. Handle; 14. Switch;

[0037] 2. Processing components; 21. Through slot; 22. Motor; 23. Reciprocating lead screw; 24. Threaded block; 25. Spraying mechanism; 251. Electric push rod; 252. Crossbeam; 253. Nozzle; 254. Hose; 255. Groove; 256. Storage tank; 257. Rotating shaft; 26. Protective cover. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] Example 1

[0040] See Figures 1-4The utility model provides a portable charging alternating current magnetic yoke flaw detector, including main part assembly 1, main part assembly 1 includes: the bottom symmetry of support block 11 is provided with metal magnetic yoke column 12, handle 13 is set up in the top of support block 11, switch 14 is set up in the bottom surface of handle 13, and the processing assembly 2 is set up on support block 11 with switch 14, and the processing assembly 2 includes: through slot 21 is opened in the bottom of support block 11, motor 22 is set up through the left side wall of support block 11 by frame, and the output shaft of motor 22 penetrates and extends to in through slot 21, reciprocating screw rod 23 is rotatably connected between the inner wall of through slot 21, and one end of reciprocating screw rod 23 is fixedly connected with the output shaft of motor 22, threaded block 24 is screwly connected on reciprocating screw rod 23, spraying mechanism 25 is set up on support block 11 with threaded block 24, and spraying mechanism 25 includes: electric push rod 251 is set up in the bottom of threaded block 24, and motor 22, electric push rod 251 with switch 14 are all electrically connected, crossbeam 252 is set up in the bottom of electric push rod 251, spray head 253 is symmetrically and penetrates and is connected in the bottom of crossbeam 252, hose 254 one end penetrates and is connected in the top of crossbeam 252 through air pump, recess 255 is opened in support block 11, and storage barrel 256 is set up in the right side wall of support block 11, and the other end of hose 254 passes through recess 255 and is connected with storage barrel 256 penetrates.

[0041] In use, the worker drives the device to the place where the workpiece needs to be detected, and the metal magnetic yoke column 12 is attached to the surface of the workpiece. The processing assembly 2 processes the surface of the workpiece in advance: the worker starts the motor 22 through the switch 14, the motor 22 drives the reciprocating screw rod 23 to rotate, the threaded block 24 threaded on the reciprocating screw rod 23 drives the spraying mechanism 25 to reciprocate along the extension direction of the motor 22, and at this time the spraying mechanism 25 sprays the workpiece surface with magnetic powder: the worker first controls the electric push rod 251 to extend downward through the switch 14, the electric push rod 251 drives the cross beam 252 to lower, until a certain distance is kept with the surface of the workpiece, and then the air pump on the hose 254 is started, the hose 254 transports the magnetic powder stored in the storage barrel 256 to the cross beam 252, and the symmetrical spray heads 253 at the bottom of the cross beam 252 spray the magnetic powder at the cross beam 252, achieving the effect of left and right reciprocating spraying with the moving threaded block 24. The worker adjusts the reciprocating distance of the threaded block 24 by controlling the rotating time of the motor 22, so as to control the thickness of the magnetic powder spraying. After the magnetic powder spraying is completed, the worker presses the switch 14, the workpiece is in a magnetized state, and the switch 14 is released. Whether the workpiece has a magnetic mark is observed, so that the workpiece is conveniently detected. When the threaded block 24 drives the cross beam 252 to move, the hose 254 continuously moves out of the groove 255, and the arc surface at the corner of the groove 255 avoids the hose 254 from being scratched by the edge of the groove 255 when entering and leaving the groove 255, thereby affecting the spraying effect of the spraying mechanism 25.

[0042] Example two

[0043] On the basis of example one, an auxiliary function is added.

[0044] Referring to Figures 1-4 , the inner wall of the groove 255 is connected with a rotating shaft 257 through a volute spring, and the hose 254 is wound outside the rotating shaft 257. The cross beam 252 is provided with a protective cover 26. The width of the through groove 21 is equal to the width of the threaded block 24.

[0045] The scroll spring refers to a spring of helical line in a plane, the spring is a kind of spring that material is wound into a planar helical shape, one end of the spring is fixed, after the other end is subjected to a torque, the material is subjected to a bending moment, a bending elastic deformation is generated, and thus the spring is twisted in its own plane. The hose 254 is wound on the rotating shaft 257, when the threaded block 24 moves, the hose 254 is pulled out of the groove 255, the pulling force of the scroll spring will act, the length will increase, and when the threaded block 24 moves to the groove 255, the external force decreases, the scroll spring will generate a torsional force to drive the rotating shaft 257 to rotate, so that the hose 254 can be automatically wound on the rotating shaft 257 again, the hose 254 is wound at any time to avoid the hose 254 from being loose and contacting the reciprocating wire rod 23, and abrasion of the hose 254 is caused. When the spray head 253 sprays the magnetic powder, the protective cover 26 avoids that the magnetic powder adheres to the metal yoke column 12, and the normal paving effect of the magnetic powder is affected. The threaded block 24 moves in the through groove 21 under the influence of the reciprocating wire rod 23, since the through groove 21 and the threaded block 24 have the same width, the front and rear sides of the threaded block 24 slide on the inner side walls of the through groove 21, and the stability of the threaded block 24 when moving is increased.

[0046] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A portable rechargeable AC magnetic yoke flaw detector, comprising a main body component (1), wherein the main body component (1) includes: Support block (11), with metal magnetic yoke columns (12) symmetrically arranged at its bottom; A handle (13) is provided on the top of the support block (11); The switch (14) is located on the bottom surface of the handle (13); The feature is that: a processing component (2) is provided on the support block (11) and the switch (14), and the processing component (2) includes: A through groove (21) is provided at the bottom of the support block (11); The motor (22) is mounted on the left side wall of the support block (11) via a frame, and the output shaft of the motor (22) passes through and extends into the through slot (21); A reciprocating lead screw (23) is rotatably connected between the inner walls of the through groove (21), and one end of the reciprocating lead screw (23) is fixedly connected to the output shaft of the motor (22); Threaded block (24) is threadedly connected to the reciprocating lead screw (23); The spraying mechanism (25) is disposed on the support block (11) and the threaded block (24).

2. The portable rechargeable AC magnetic yoke flaw detector according to claim 1, characterized in that: The spraying mechanism (25) includes: An electric push rod (251) is disposed at the bottom of the threaded block (24), and the motor (22), the electric push rod (251) and the switch (14) are all electrically connected; A crossbeam (252) is disposed at the bottom of the electric push rod (251); The nozzle (253) is symmetrically and continuously connected to the bottom of the crossbeam (252); The hose (254) is connected at one end to the top of the crossbeam (252) via an air pump; A groove (255) is formed on the support block (11); The storage bucket (256) is located on the right side wall of the support block (11), and the other end of the hose (254) passes through the groove (255) and is connected to the storage bucket (256).

3. The portable rechargeable AC magnetic yoke flaw detector according to claim 2, characterized in that: The groove (255) has an arc-shaped surface at its edge.

4. A portable rechargeable AC magnetic yoke flaw detector according to claim 3, characterized in that: The inner wall of the groove (255) is rotatably connected to a rotating shaft (257) by a spiral spring, and the hose (254) is wound around the outside of the rotating shaft (257).

5. A portable rechargeable AC magnetic yoke flaw detector according to claim 4, characterized in that: A protective cover (26) is provided on the crossbeam (252).

6. A portable rechargeable AC magnetic yoke flaw detector according to claim 5, characterized in that: The width of the through groove (21) is equal to the width of the threaded block (24).

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