Spraying device for magnetic particle flaw detector

Abstract

The utility model discloses a spraying device for a magnetic particle flaw detector, which relates to the technical field of nondestructive testing and comprises a main body, a conveyor belt is arranged in the main body, a through hole is formed in the surface of the conveyor belt, mounting racks I are arranged in the middle and on the lower side of the conveyor belt, and elastic components are fixedly arranged on the opposite surfaces of the mounting racks I; the two elastic assemblies are symmetrically arranged along the center line of the first mounting frame, and shovel teeth are fixedly arranged at one ends of the elastic assemblies. Compared with an existing spraying device of a common magnetic particle flaw detector, the spraying device for the magnetic particle flaw detector has the advantages that when the spraying device is used for spraying magnetic suspension, the magnetic suspension passes through the surface of the spraying part, then enters the through hole, is filtered by the filter screen, then enters the main body and waits for being collected, and the magnetic suspension is sprayed by the spraying part along with the rotation of the conveying belt; and residual magnetic suspension on the surface can be scraped under the action of the shovel teeth, so that raw materials can be further saved, and the use cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of nondestructive testing, in particular to a spraying device for a magnetic particle flaw detector. Background Technique

[0002] In the prior art, magnetic particle flaw detection is to use ferromagnetic materials to be magnetized. Due to the existence of discontinuities, the magnetic lines of force on the surface and near the surface of the workpiece are locally distorted to generate a leakage magnetic field, that is, the magnetic field formed when the magnetic induction lines leave and enter the surface, adsorb the magnetic powder applied on the surface of the workpiece, and form magnetic marks visible to the naked eye under appropriate illumination, so as to show the position, shape and size of the discontinuity. Before detecting the workpiece, it is necessary to spray a suspension liquid on the workpiece. The suspension liquid formed by mixing magnetic powder and dispersant in a certain proportion is called magnetic suspension liquid, and the suspension liquid is sprayed on the workpiece through a spraying device.

[0003] For example, the application number is 202122014705.7. The utility model discloses a spraying device for a magnetic particle flaw detector. A communicating pipe is arranged on the upper side of the working box. One end of the communicating pipe is provided with an injection check valve. A plurality of spraying components are arranged on the upper side of the working box. The working components are arranged inside the working box, and a sealing mechanism is arranged at the upper end of the working box. Using the working motor can complete the suction and ejection of the magnetic suspension liquid. The operation is simple and fast. And during the spraying process, when the magnetic suspension liquid is sucked and extruded, the magnetic suspension liquid is stirred, so that the concentration of the magnetic suspension liquid is uniform, avoiding the phenomenon of precipitation and stratification, and improving the spraying quality. However, the spraying device of this magnetic particle flaw detector is not convenient for preventing the magnetic suspension liquid from precipitating and stratifying during storage, and is not convenient for reducing the waste of raw materials. Moreover, the feeding method of the magnetic suspension liquid of this device is likely to produce more residues.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structural deficiencies, and a spraying device for a magnetic particle flaw detector is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spraying device for a magnetic particle flaw detector to solve the problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A spraying device for a magnetic particle flaw detector includes a main body. A conveyor belt is arranged inside the main body, and through holes are formed on the surface of the conveyor belt. Mounting frames I are arranged in the middle and at the lower side of the conveyor belt, and elastic components are fixedly arranged on the opposite surfaces of the mounting frames I. Two elastic components are symmetrically arranged along the center line of the mounting frame I, and a shovel tooth is fixedly arranged at one end of the elastic component.

[0007] Preferably, the shovel teeth are trapezoidal, and the shovel teeth are all slidably connected to the conveyor belt. Filters are provided on both sides of the lower part of the conveyor belt and located on both sides of the first mounting frame, and the filters are fixedly connected to both the first mounting frame and the main body at the same time.

[0008] Preferably, a raw material barrel is provided on one side of the main body, and a feeding pipe is fixedly provided at the upper end of the raw material barrel. An installation cylinder is provided inside the raw material barrel below the feeding pipe, and a sealing plug is slidably arranged inside the installation cylinder.

[0009] Preferably, a floating ball is fixedly arranged in the middle of the sealing plug. A stirring frame is rotatably arranged below the installation cylinder, and the stirring frame is simultaneously rotatably connected to the raw material barrel. The stirring frame passes through the raw material barrel and is connected to the motor.

[0010] Preferably, the motor is fixedly connected to the raw material barrel. The other end of the feeding pipe is connected to a feeding box, and a telescopic frame is arranged at the upper end inside the feeding box. Slide rails are slidably arranged on both sides of the lower end of the telescopic frame.

[0011] Preferably, a pressing plate is fixedly arranged at the lower end of the slide rail. The pressing plate is simultaneously slidably connected to the feeding box, and sealing plates are arranged at both lower ends of the pressing plate.

[0012] Preferably, a second mounting frame is fixedly arranged at the upper end of the sealing plate, and a spring is fixedly arranged in the middle of the second mounting frame. The lower end of the spring is fixedly connected to the pressing plate.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. Through the settings of the main body, conveyor belt, through holes, first mounting frame, elastic component, shovel teeth and filters, when spraying the magnetic suspension liquid, the magnetic suspension liquid enters the through holes after passing through the surface of the spraying part and enters the main body after being filtered by the filters, waiting to be collected. And with the rotation of the conveyor belt, the residual magnetic suspension liquid on its surface can be scraped off under the action of the shovel teeth, thereby further saving raw materials.

[0015] 2. Through the settings of the raw material barrel, feeding pipe, installation cylinder, sealing plug, floating ball, stirring frame and motor, the raw materials are stored in the raw material barrel. The stock solution can be stirred with the rotation of the stirring frame, which can avoid the phenomenon of precipitation and stratification of the stock solution over time. And when extracting the stock solution, the stock solution is extracted through the installation cylinder. When the stock solution decreases, the floating ball drives the sealing plug to lower with the decrease of the water level of the stock solution. In this way, when the stock solution is insufficient, the sealing plug can prevent the feeding pipe from being blocked to prevent the sediment from being pumped away.

[0016] 3. With the settings of the feeding box, telescopic frame, slide rail, mounting frame II, sealing plate and spring, when the stock solution enters the feeding box from the raw material barrel, it first stays on the pressing plate. When the pressing plate moves upward, the sealing plate can be pressed down to enter below the pressing plate and wait for the pressing plate to move downward again. When the pressing plate moves downward, the sealing plate will be pressed against the lower end of the pressing plate under the action of pressure and the spring, so as to reduce the remaining raw materials during feeding. Brief Description of the Drawings

[0017] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0018] Figure 2 It is a schematic cross-sectional structure diagram of the main body of the present utility model;

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the raw material barrel of the present utility model;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the feeding box of the present utility model.

[0021] In the figure: 1, main body; 2, conveyor belt; 3, through hole; 4, mounting frame I; 5, elastic component; 6, scraping teeth; 7, filter screen; 8, raw material barrel; 9, feeding pipe; 10, mounting cylinder; 11, sealing plug; 12, floating ball; 13, stirring frame; 14, motor; 15, feeding box; 16, telescopic frame; 17, slide rail; 18, mounting frame II; 19, sealing plate; 20, spring; 21, pressing plate. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0023] As Figure 1 - Figure 2 shown, the spraying device for a magnetic particle flaw detector includes a main body 1. A conveyor belt 2 is arranged inside the main body 1, and through holes 3 are formed on the surface of the conveyor belt 2. Mounting frames I 4 are arranged in the middle and at the lower side of the conveyor belt 2, and elastic components 5 are fixedly arranged on the opposite surfaces of the mounting frames I 4. Two elastic components 5 are symmetrically arranged along the center line of the mounting frame I 4, and scraping teeth 6 are fixedly arranged at one end of the elastic components 5. When spraying the magnetic suspension liquid, after the magnetic suspension liquid passes through the surface of the spraying part, it enters the through holes 3 and is filtered by the filter screen 7 and then enters the inside of the main body 1 to wait to be collected. And as the conveyor belt 2 rotates, the residual magnetic suspension liquid on its surface can be scraped off under the action of the scraping teeth 6, so as to further save raw materials;

[0024] Furthermore, the filter screen 7 can remove some impurities in the stock solution, avoiding impurities being mixed inside the stock solution.

[0025] As Figure 3 - Figure 4 shown, the shovel teeth 6 are set as trapezoids, and the shovel teeth 6 are all slidably connected to the conveyor belt 2. Filter screens 7 are arranged on both sides of the lower part of the conveyor belt 2 and located at the mounting frame one 4, and the filter screens 7 are fixedly connected to the mounting frame one 4 and the main body 1 at the same time. A raw material bucket 8 is arranged on one side of the main body 1, and a feeding pipe 9 is fixedly arranged at the upper end of the raw material bucket 8. An installation cylinder 10 is arranged below the feeding pipe 9 inside the raw material bucket 8, and a sealing plug 11 is slidably arranged inside the installation cylinder 10. A floating ball 12 is fixedly arranged in the middle of the sealing plug 11. A stirring frame 13 is rotatably arranged below the installation cylinder 10, and the stirring frame 13 is rotatably connected to the raw material bucket 8 at the same time. The stirring frame 13 passes through the raw material bucket 8 and is connected to the motor 14, and the motor 14 is fixedly connected to the raw material bucket 8. The other end of the feeding pipe 9 is connected to the feeding box 15, and a telescopic frame 16 is arranged at the upper end inside the feeding box 15. Slide rails 17 are slidably arranged on both sides of the lower end of the telescopic frame 16. A pressing plate 21 is fixedly arranged at the lower end of the slide rail 17, and the pressing plate 21 is slidably connected to the feeding box 15 at the same time. Sealing plates 19 are arranged at both lower ends of the pressing plate 21. An installation frame two 18 is fixedly arranged at the upper end of the sealing plate 19, and a spring 20 is fixedly arranged in the middle of the installation frame two 18. The lower end of the spring 20 is fixedly connected to the pressing plate 21. The raw material is stored in the raw material bucket 8. As the stirring frame 13 rotates, the stock solution can be stirred, which can avoid the phenomenon of precipitation and stratification of the stock solution over time. And when the stock solution is extracted, the stock solution is extracted through the installation cylinder 10. When the stock solution decreases, the floating ball 12 drives the sealing plug 11 to lower as the water level of the stock solution decreases. In this way, when the stock solution is insufficient, the sealing plug 11 can prevent the feeding pipe 9 from being blocked to prevent the sediment from being pumped away; when the stock solution enters the feeding box 15 from the raw material bucket 8, it first stays on the pressing plate 21, and when the pressing plate 21 moves upward, the sealing plate 19 can be pressed down to enter below the pressing plate 21 and wait for the pressing plate 21 to move downward again. When the pressing plate 21 moves downward, the sealing plate 19 will be pressed against the lower end of the pressing plate 21 under the action of pressure and the spring 20. In this way, the remaining raw materials can be reduced during feeding.

[0026] Furthermore, the fan blades at the bottom of the stirring frame 13 can make the stock solution below drive the sediment to move upward together, which can reduce the precipitation of the stock solution.

[0027] Working principle: When using the spraying device for the magnetic particle flaw detector, first, when spraying the magnetic suspension liquid, the magnetic suspension liquid passes through the surface of the spraying part and then enters the through hole 3. After being filtered by the filter screen 7, it enters the interior of the main body 1 and waits to be collected. Along with the rotation of the conveyor belt 2, the residual magnetic suspension liquid on its surface can be scraped off under the action of the shovel teeth 6, thus further saving raw materials. Secondly, the raw materials are stored in the raw material barrel 8. The original liquid can be stirred along with the rotation of the stirring frame 13, which can avoid the phenomenon of precipitation and stratification of the original liquid over time. When extracting the original liquid, the original liquid is extracted through the installation cylinder 10. When the original liquid decreases, the floating ball 12 drives the sealing plug 11 to lower along with the decrease of the liquid level of the original liquid. In this way, when the original liquid is insufficient, the sealing plug 11 can prevent the feeding pipe 9 from being blocked to prevent the sediment from being pumped away. Finally, when the original liquid enters the feeding box 15 from the raw material barrel 8, it first stays on the pressing plate 21. When the pressing plate 21 moves upward, the sealing plate 19 can be pressed down so that it enters below the pressing plate 21 and waits for the pressing plate 21 to move downward again. When the pressing plate 21 moves downward, the sealing plate 19 will be pressed against the lower end of the pressing plate 21 under the action of pressure and the spring 20. In this way, the residual raw materials can be reduced during feeding. This is the working principle of the spraying device for the magnetic particle flaw detector.

Claims

1. A spray device for a magnetic particle flaw detector, comprising a main body (1), characterized in that: A conveyor belt (2) is arranged inside the main body (1), and a through hole (3) is opened on the surface of the conveyor belt (2). A mounting frame (4) is arranged in the middle and lower side of the conveyor belt (2), and an elastic component (5) is fixedly arranged on the opposite side of the mounting frame (4). Two elastic components (5) are symmetrically arranged along the center line of the mounting frame (4), and a shovel tooth (6) is fixedly arranged at one end of the elastic component (5).

2. The spray device for magnetic particle flaw detector according to claim 1, characterized in that: The shovel teeth (6) are arranged in a trapezoidal shape, and the shovel teeth (6) are all slidably connected to the conveyor belt (2), and filter screens (7) are arranged on both sides of the mounting frame (4) below the conveyor belt (2), and the filter screens (7) are fixedly connected to the mounting frame (4) and the main body (1) at the same time.

3. The spray device for magnetic particle flaw detector according to claim 2, characterized in that: A raw material barrel (8) is provided on one side of the main body (1), and a feeding pipe (9) is fixedly provided at the upper end of the raw material barrel (8); a mounting cylinder (10) is provided inside the raw material barrel (8) below the feeding pipe (9), and a sealing plug (11) is slidably provided inside the mounting cylinder (10).

4. The spray device for magnetic particle flaw detector according to claim 3, characterized in that: A floating ball (12) is fixedly arranged in the middle of the sealing plug (11), and a stirring frame (13) is rotatably arranged below the mounting cylinder (10). The stirring frame (13) is rotatably connected to the raw material barrel (8) at the same time, and the stirring frame (13) passes through the raw material barrel (8) and is connected to a motor (14).

5. The spray device for magnetic particle flaw detector according to claim 4, characterized in that: The motor (14) is fixedly connected to the raw material barrel (8), the other end of the feeding pipe (9) is connected to the feeding box (15), and a telescopic frame (16) is provided at the upper end of the feeding box (15), and slide rails (17) are slidably provided on both sides of the lower end of the telescopic frame (16).

6. The spray device for magnetic particle flaw detector according to claim 5, characterized in that: A pressing plate (21) is fixedly provided at the lower end of the slide rail (17), and the pressing plate (21) is slidably connected to the feeding box (15), and sealing plates (19) are provided at the lower ends of both sides of the pressing plate (21).

7. The spray device for magnetic particle flaw detector according to claim 6, characterized in that: A second mounting frame (18) is fixedly arranged at the upper end of the sealing plate (19), and a spring (20) is fixedly arranged in the middle of the second mounting frame (18), and the lower end of the spring (20) is fixedly connected to the pressure plate (21).

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