Portable magnetic defect detector

Abstract

The utility model discloses a portable magnetic defect detector and relates to the technical field of engineering detection. The device comprises a grip, and an adjusting mechanism and a configuration mechanism are arranged on the grip. Through the arrangement of the adjusting mechanism, when the device needs to be adjusted according to the size of a detected material in the using process, the motor can be started, the motor drives the two L-shaped sliding blocks matched with the motor to move towards each other or away from each other through the two-way screw rod, and due to the fact that the two L-shaped sliding blocks are connected with the two rectangular sliding frames on the track, the two rectangular sliding frames are connected with each other through the two-way screw rod. When the two L-shaped sliding blocks move on the two-way screw rod, the two rectangular sliding frames and the metal magnet yoke columns installed on the rectangular sliding frames can be synchronously driven to conduct corresponding position adjustment, then clamping of detection materials is achieved, and through the arrangement, the device can flexibly adapt to the detection materials of different sizes, and the detection efficiency is improved. The flexibility and the practicability of the device are obviously improved, so that the device can play a role in detection scenes of various sizes and specifications.

Description

Technical Field

[0001] This utility model belongs to the field of engineering testing technology, and in particular relates to a portable magnetic particle flaw detector. Background Technology

[0002] A portable magnetic particle flaw detector is a device used to detect surface and near-surface defects in ferromagnetic materials. Its working principle is based on the fact that when a ferromagnetic material is magnetized, the presence of defects will cause the magnetic field lines to be distorted, generating a leakage magnetic field, which in turn attracts magnetic particles to show the defects. It is small in size and light in weight, making it easy to carry to different testing sites. It is easy to operate, has multiple functions, has AC and DC output, and can be equipped with a variety of probes.

[0003] Existing portable flaw detectors have limitations in use. Because the metal magnetic yoke is fixedly connected to the main body of the flaw detector, the adjustable range is limited. This means that during flaw detection, it can only clamp and inspect objects of specific size and uniform shape. When encountering workpieces that exceed the limited range in size or have irregular shapes, it is difficult to exert the due detection efficiency, which reduces the flexibility and practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide a portable magnetic particle flaw detector, which solves the technical problems mentioned in the background art by setting an adjustment mechanism.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a portable magnetic particle flaw detector, including a handle, on which an adjustment mechanism and a configuration mechanism are provided;

[0007] The adjustment mechanism includes a rectangular block assembly fixedly connected to the front of the grip. A motor is fixedly connected to the left side of the rectangular block assembly. The output shaft of the motor is fixedly connected to a bidirectional screw via a coupling. The bidirectional screw passes through the rectangular block assembly and is rotatably connected to the rectangular block assembly. Two L-shaped sliders are threadedly connected to the outer wall of the bidirectional screw. A track is fixedly connected to the bottom of the grip. Two rectangular sliding frames are slidably connected to the outer surface of the track. The front of each of the two rectangular sliding frames is fixedly connected to the two L-shaped sliders.

[0008] Furthermore, the configuration mechanism includes two rotating components and a configuration component. The rotating component includes a rotating rod rotatably connected to the inner wall of a rectangular slide frame. The rear end of the rotating rod extends to the outside of the rectangular slide frame. A rotating block is fixedly connected to the outer wall of the rotating rod, and a metal magnetic yoke is fixedly connected to the bottom of the rotating block.

[0009] Furthermore, an arc-shaped groove is provided on the back of the rectangular sliding frame, and a balance bar is fixedly connected to the back of the rotating block. The end of the balance bar away from the rotating block extends out of the arc-shaped groove and is slidably connected to the arc-shaped groove.

[0010] Furthermore, a connecting block is fixedly connected to the outer wall of the rotating rod and the balance bar, and several limiting holes are opened on the back of the rectangular sliding frame. A pin is slidably sleeved on the connecting block, and the end of the pin away from the connecting block extends into the limiting hole.

[0011] Furthermore, two hoops are fixedly connected to the back of the grip, and a liquid storage tank is fixedly connected to the inner wall of the two hoops. An inlet pipe is fixedly connected to the outer wall of the liquid storage tank.

[0012] Furthermore, the inlet pipe is connected to the storage tank, and a solenoid valve is fixedly connected to the outer wall of the storage tank. A delivery pipe is fixedly connected to the bottom end of the solenoid valve.

[0013] Furthermore, a switch is provided on the top of the grip, and a battery is provided on the right side of the grip.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, through the setting of an adjustment mechanism, allows the motor to be started when adjustments are needed based on the size of the material to be tested during use. The motor will drive two L-shaped sliders adapted to it to move towards or away from each other via a bidirectional screw. Since the two L-shaped sliders are connected to two rectangular sliding frames on the track, when the two L-shaped sliders move on the bidirectional screw, they will simultaneously drive the two rectangular sliding frames and the metal magnetic yokes installed on the rectangular sliding frames to make corresponding position adjustments, thereby achieving clamping of the material to be tested. Through this setting, the device can flexibly adapt to materials of different sizes, significantly improving the flexibility and practicality of the device, enabling it to perform effectively in various testing scenarios with different sizes and specifications.

[0016] 2. By setting up a configuration mechanism, if it is necessary to detect irregular materials, the pin on the connecting block can be pulled out. After the pin is removed, the limiting state of the connecting block is released. At this time, with the help of the synergistic effect of the rotating rod and the rotating block, the metal magnetic yoke column can be driven to flexibly adjust the clamping angle to meet the effective clamping of irregularly shaped materials. This greatly expands the applicability of the device, enabling it to deal with detection objects with complex and diverse shapes. At the same time, during the rotation of the rotating block, the balance rod on it will also slide synchronously in the arc groove on the rectangular slide frame, thereby ensuring the stability of the adjustment process of the rotating block driving the metal magnetic yoke column.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0020] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the configuration mechanism of this utility model;

[0022] Figure 4 for Figure 2 A magnified view of part A in the diagram;

[0023] Figure 5 for Figure 3 A magnified view of part B in the diagram;

[0024] Figure 6 for Figure 3 A magnified view of part C in the diagram.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Handle; 2. Adjustment mechanism; 3. Configuration mechanism; 21. Rectangular block assembly; 22. Motor; 23. Bidirectional screw; 24. L-shaped slider; 25. Track; 26. Rectangular slide frame; 31. Rotating rod; 32. Rotating block; 33. Metal magnetic yoke column; 34. Arc groove; 35. Balance bar; 36. Connecting block; 37. Limiting hole; 38. Pin; 39. Hoop; 391. Liquid storage tank; 392. Liquid inlet pipe; 393. Solenoid valve; 394. Delivery pipe; 395. Switch; 396. Battery. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6As shown, this utility model is a portable magnetic particle flaw detector, including a handle 1, on which an adjustment mechanism 2 and a configuration mechanism 3 are provided;

[0029] The adjustment mechanism 2 includes a rectangular block assembly 21 fixedly connected to the front of the grip 1. A motor 22 is fixedly connected to the left side of the rectangular block assembly 21. The output shaft of the motor 22 is fixedly connected to a bidirectional screw 23 via a coupling. The bidirectional screw 23 passes through the rectangular block assembly 21 and is rotatably connected to the rectangular block assembly 21. Two L-shaped sliders 24 are threadedly connected to the outer wall of the bidirectional screw 23. A track 25 is fixedly connected to the bottom of the grip 1. Two rectangular slide frames 26 are slidably connected to the outer surface of the track 25. The front of each of the two rectangular slide frames 26 is fixedly connected to the two L-shaped sliders 24.

[0030] By setting the adjustment mechanism 2, when the device needs to be adjusted according to the size of the material to be tested during use, the motor 22 can be started. The motor 22 will drive the two L-shaped sliders 24 that are adapted to it to move towards or away from each other through the bidirectional screw 23. Since the two L-shaped sliders 24 are connected to the two rectangular sliding frames 26 on the track 25, when the two L-shaped sliders 24 move on the bidirectional screw 23, they will simultaneously drive the two rectangular sliding frames 26 and the metal magnetic yoke column 33 installed on the rectangular sliding frames 26 to make corresponding position adjustments, thereby realizing the clamping of the material to be tested. With this setting, the device can flexibly adapt to the material to be tested of different sizes, significantly improving the flexibility and practicality of the device, and enabling it to perform effectively in a variety of testing scenarios with different sizes and specifications.

[0031] The configuration mechanism 3 includes two rotating components and a configuration component. The rotating components include a rotating rod 31 rotatably connected to the inner wall of a rectangular slide frame 26. The rear end of the rotating rod 31 extends outside the rectangular slide frame 26. A rotating block 32 is fixedly connected to the outer wall of the rotating rod 31. A metal magnetic yoke column 33 is fixedly connected to the bottom of the rotating block 32. An arc-shaped groove 34 is formed on the back of the rectangular slide frame 26. A balance bar 35 is fixedly connected to the back of the rotating block 32. The end of the balance bar 35 away from the rotating block 32 extends outside the arc-shaped groove 34 and is slidably connected to the arc-shaped groove 34. A connecting block 36 is fixedly connected to the outer walls of the rotating rod 31 and the balance bar 35. Several limiting holes 37 are provided on the back. A pin 38 is slidably sleeved on the connecting block 36. The end of the pin 38 away from the connecting block 36 extends into the limiting hole 37. Two hoops 39 are fixedly connected to the back of the handle 1. A liquid storage tank 391 is fixedly connected to the inner wall of the two hoops 39. An inlet pipe 392 is fixedly connected to the outer wall of the liquid storage tank 391. The inlet pipe 392 communicates with the liquid storage tank 391. A solenoid valve 393 is fixedly connected to the outer wall of the liquid storage tank 391. A delivery pipe 394 is fixedly connected to the bottom end of the solenoid valve 393. A switch 395 is provided on the top of the handle 1. A battery 396 is provided on the right side of the handle 1.

[0032] By setting the configuration mechanism 3, if it is necessary to detect irregular materials, the pin 38 on the connecting block 36 can be pulled out. After the pin 38 is pulled out, the limiting state of the connecting block 36 is released. At this time, with the help of the coordinated action of the rotating rod 31 and the rotating block 32, the metal magnetic yoke column 33 can be driven to flexibly adjust the clamping angle to meet the effective clamping of irregularly shaped materials. This greatly expands the applicability of the device, enabling it to cope with detection objects with complex and diverse shapes. At the same time, during the rotation of the rotating block 32, the balance rod 35 on it will also slide synchronously in the arc groove 34 on the rectangular slide frame 26, thereby ensuring the stability of the adjustment process of the rotating block 32 driving the metal magnetic yoke column 33.

[0033] A specific application of this embodiment is as follows: Solenoid valve: ZCS series hydraulic solenoid valves can be used. The main working principle of solenoid valves is to control fluid by using electromagnetic force. When the coil is energized, a magnetic field is generated, which magnetizes the iron core and generates electromagnetic force. For direct-acting solenoid valves, the electromagnetic force acts directly on the valve core, lifting it from the valve seat, thereby opening the fluid passage. For pilot-operated solenoid valves, the electromagnetic force first opens the pilot hole, causing the pressure in the upper chamber of the main valve piston to drop. The pressure difference is used to lift the main valve core and open the passage. When the coil is de-energized, the magnetic field and electromagnetic force disappear, and the valve core resets under the action of spring force or medium pressure, closing the passage.

[0034] During use, when adjustments to the device are needed based on the size of the material to be tested, motor 22 can be started. Motor 22 will drive two L-shaped sliders 24, which are adapted to it, to move towards or away from each other via bidirectional screw 23. Since the two L-shaped sliders 24 are connected to two rectangular sliding frames 26 on the track 25, when the two L-shaped sliders 24 move on the bidirectional screw 23, they will simultaneously drive the two rectangular sliding frames 26 and the metal magnetic yoke 33 mounted on the rectangular sliding frames 26 to make corresponding position adjustments, thereby achieving clamping of the material to be tested. Through this setting, the device can flexibly adapt to materials of different sizes, significantly improving the flexibility and practicality of the device, enabling it to perform effectively in various testing scenarios with different size specifications. If it is necessary to test irregular materials, the pin 38 on the connecting block 36 can be pulled out. After the pin 38 is removed, the limiting state of the connecting block 36 is released. At this time, with the help of the coordinated action of the rotating rod 31 and the rotating block 32, the metal magnetic yoke 33 can be driven to flexibly adjust the clamping angle to meet the requirements. The effective clamping of irregularly shaped materials greatly expands the applicability of the device, enabling it to handle inspection objects with complex and diverse shapes. At the same time, during the rotation of the rotating block 32, its balance rod 35 also slides synchronously in the arc groove 34 on the rectangular sliding frame 26, thereby ensuring the stability of the adjustment process of the rotating block 32 driving the metal magnetic yoke column 33. After the clamped material is fixed, the solenoid valve 393 can be activated. After the solenoid valve 393 is activated, the magnetic suspension liquid in the storage tank 391 will be sprayed onto the material surface through the delivery pipe 394. Then, the switch 395 is turned on to magnetize the material. When the material is magnetized, a strong magnetic induction intensity will be generated inside. If there are defects such as cracks or pores on or near the surface of the material, the magnetic lines of force will be distorted. Some magnetic lines of force may escape from the material surface, forming a leakage magnetic field. The local magnetic poles of the leakage magnetic field will attract ferromagnetic magnetic powder, causing the magnetic powder to accumulate at the defect, thus presenting the shape and location of the defect, so that the inspector can judge the existence and nature of the defect.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A portable magnetic particle flaw detector, characterized in that: Includes a grip (1), on which an adjustment mechanism (2) and a configuration mechanism (3) are provided; The adjustment mechanism (2) includes a rectangular block group (21) fixedly connected to the front of the grip (1). A motor (22) is fixedly connected to the left side of the rectangular block group (21). The output shaft of the motor (22) is fixedly connected to a bidirectional screw (23) through a coupling. The bidirectional screw (23) passes through the rectangular block group (21) and is rotatably connected to the rectangular block group (21). Two L-shaped sliders (24) are threadedly connected to the outer wall of the bidirectional screw (23). A track (25) is fixedly connected to the bottom of the grip (1). Two rectangular sliding frames (26) are slidably connected to the outer surface of the track (25). The front of each of the two rectangular sliding frames (26) is fixedly connected to the two L-shaped sliders (24).

2. The portable magnetic particle flaw detector according to claim 1, characterized in that, The configuration mechanism (3) includes two rotating components and a configuration component. The rotating component includes a rotating rod (31) rotatably connected to the inner wall of the rectangular slide frame (26). The rear end of the rotating rod (31) extends to the outside of the rectangular slide frame (26). A rotating block (32) is fixedly connected to the outer wall of the rotating rod (31). A metal magnetic yoke column (33) is fixedly connected to the bottom of the rotating block (32).

3. A portable magnetic particle flaw detector according to claim 2, characterized in that, The back of the rectangular sliding frame (26) is provided with an arc groove (34), and the back of the rotating block (32) is fixedly connected with a balance bar (35). The end of the balance bar (35) away from the rotating block (32) extends to the outside of the arc groove (34) and is slidably connected to the arc groove (34).

4. A portable magnetic particle flaw detector according to claim 2, characterized in that, The outer walls of the rotating rod (31) and the balance rod (35) are fixedly connected to a connecting block (36). The back of the rectangular sliding frame (26) is provided with several limiting holes (37). A pin (38) is slidably sleeved on the connecting block (36). The end of the pin (38) away from the connecting block (36) extends into the limiting hole (37).

5. A portable magnetic particle flaw detector according to claim 1, characterized in that, Two hoops (39) are fixedly connected to the back of the grip (1), and a liquid storage tank (391) is fixedly connected to the inner wall of the two hoops (39). An inlet pipe (392) is fixedly connected to the outer wall of the liquid storage tank (391).

6. A portable magnetic particle flaw detector according to claim 5, characterized in that, The inlet pipe (392) is connected to the storage tank (391), and a solenoid valve (393) is fixedly connected to the outer wall of the storage tank (391). A delivery pipe (394) is fixedly connected to the bottom end of the solenoid valve (393).

7. A portable magnetic particle flaw detector according to claim 1, characterized in that, A switch (395) is provided on the top of the grip (1), and a battery (396) is provided on the right side of the grip (1).

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