A magnetic flux spraying device for a magnetic particle flaw detector

Abstract

This utility model relates to the field of magnetic particle inspection technology, and proposes a magnetic flux suspension spraying device for a magnetic particle inspection machine, comprising: a chassis and a movable table; a fixed plate is fixedly installed on one side of the chassis, a fixed component is fixedly installed on the top of the fixed plate, a first motor is fixedly installed inside the fixed component, a rotating shaft is fixedly installed at the output end of the first motor, a second motor is fixedly installed inside the fixed component, and a lead screw is fixedly installed at the output end of the second motor. By connecting the first motor and the rotating shaft, the rotating shaft can be rotated when the first motor is started, thereby rotating a steel pipe fixed to the outside of the rotating shaft by a spring and a support rod, so that the steel pipe can be evenly sprayed with magnetic flux suspension, and then detected by the probe to check whether the steel pipe is damaged. By threading the lead screw to the movable table, the movable table can be moved when the lead screw is rotated, thereby enabling the pump and the detection device to spray magnetic flux suspension and perform flaw detection on the steel pipe.

Description

Technical Field

[0001] This utility model belongs to the field of magnetic particle inspection technology, specifically relating to a magnetic fluid spraying device for a magnetic particle inspection machine. Background Technology

[0002] Magnetic particle testing utilizes the fact that when ferromagnetic materials are magnetized, the discontinuities cause local distortion of the magnetic field lines on and near the workpiece surface, generating a leakage magnetic field (i.e., the magnetic field formed when magnetic induction lines leave and enter the surface). This magnetic field attracts the magnetic powder applied to the workpiece surface, forming magnetic marks that are visible to the naked eye under suitable lighting, thus revealing the location, shape, and size of the discontinuities.

[0003] A known authorized patent with application number CN202122031251.4 discloses a magnetic flux spraying device for a magnetic particle flaw detector: it includes a flaw detector body, characterized in that a fixing plate is fixedly connected inside the flaw detector body, a base is fixedly connected to the bottom of the flaw detector body, a support plate is fixedly connected to the upper left surface of the flaw detector body, a clamping plate is connected to the support plate through a first threaded rod and a second threaded rod, a sliding plate is connected to the second threaded rod through a magnetic coil, and a spraying mechanism and a display mechanism are provided on the sliding plate.

[0004] However, the following problems were found in the implementation of the relevant technology: the device cannot automatically rotate the steel pipe during spraying and flaw detection. When the entire steel pipe needs to be sprayed with magnetic flux, the worker needs to manually rotate the steel pipe. The steel pipe also needs to be manually rotated during flaw detection. When the worker manually rotates the steel pipe, the magnetic flux sprayed on the steel pipe is easily wiped off, which can affect the accuracy of flaw detection.

[0005] Therefore, a magnetic flux spraying device for a magnetic particle flaw detector is proposed to solve the above problems. Utility Model Content

[0006] This utility model proposes a magnetic flux spraying device for a magnetic particle flaw detector, which solves the problem in related technologies that the device cannot automatically rotate the steel pipe during spraying and flaw detection.

[0007] The technical solution of this utility model is as follows: a magnetic flux spraying device for a magnetic particle flaw detector, comprising: a chassis and a movable table;

[0008] A fixing plate is fixedly installed on one side of the chassis, a fixing component is fixedly installed on the top of the fixing plate, a first motor is fixedly installed inside the fixing component, a rotating shaft is fixedly installed at the output end of the first motor, a second motor is fixedly installed inside the fixing component, and a lead screw is fixedly installed at the output end of the second motor.

[0009] A spring is fixedly installed on the outside of the rotating shaft, a support plate is fixedly installed on one end of the spring, a slide rod is fixedly installed inside the casing, and a filter plate is fixedly installed inside the casing.

[0010] Preferably, a magnetic coil is fixedly installed inside the movable platform, and a pump is fixedly installed on the top of the movable platform.

[0011] Preferably, a support pipe is fixedly installed at the output end of the pump, a nozzle is fixedly installed at one end of the support pipe, and a rubber tube is fixedly installed at the input end of the pump.

[0012] Preferably, a detection device is fixedly installed on the top of the active platform, a probe head is fixedly installed on one side of the detection device, and a display is fixedly installed on the front of the chassis.

[0013] Preferably, both the lead screw and the slide bar are located inside the movable table, and the lead screw is threadedly connected to the movable table, while the movable table is slidably disposed outside the slide bar.

[0014] Preferably, both the lead screw and the rotating shaft are fixedly mounted with fixed bearings on their exteriors, and both the lead screw and the rotating shaft are mounted inside the housing via fixed bearings.

[0015] The working principle and beneficial effects of this utility model are as follows: By starting the first motor and rotating shaft, the rotating shaft can be rotated, thereby rotating the steel pipe fixed outside the rotating shaft by the spring and support rod. This allows the steel pipe to be evenly sprayed with magnetic flux, which is then detected by the probe to check for damage. By connecting the lead screw to the movable table, the movable table can be moved when the lead screw is rotated, allowing the pump and the detection device to spray the magnetic flux and perform flaw detection on the steel pipe. By sliding the movable table outside the slide rod, the two slide rods can support the movable table. By fixing the magnetic coil inside the movable table, the magnetic coil can be moved when the movable table is moved, allowing the probe to detect defects in the steel pipe. By fixing the rubber tube to the input end of the pump, the rubber tube can be moved when the pump moves, preventing the rubber tube from obstructing the pump's movement. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 A magnified view of part A in the image;

[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0020] Figure 4 For the present utility model Figure 3 A magnified view of part B in the image.

[0021] In the diagram: 1. Chassis; 2. Movable platform; 3. Fixed plate; 4. Fixing component; 5. First motor; 6. Rotating shaft; 7. Second motor; 8. Lead screw; 9. Spring; 10. Support plate; 11. Slide rod; 12. Magnetic coil; 13. Pump; 14. Support pipe; 15. Nozzle; 16. Rubber hose; 17. Detection device; 18. Detector head; 19. Display; 20. Filter plate. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0023] Implementation

[0024] Please see Figure 1 -4. A magnetic flux spraying device for a magnetic particle flaw detector, comprising: a housing 1 and a movable table 2;

[0025] A fixing plate 3 is fixedly installed on one side of the chassis 1. A fixing component 4 is fixedly installed on the top of the fixing plate 3. A first motor 5 is fixedly installed inside the fixing component 4. A rotating shaft 6 is fixedly installed at the output end of the first motor 5. A second motor 7 is fixedly installed inside the fixing component 4. A lead screw 8 is fixedly installed at the output end of the second motor 7.

[0026] A spring 9 is fixedly installed on the outside of the rotating shaft 6, and a support plate 10 is fixedly installed on one end of the spring 9. A slide rod 11 is fixedly installed inside the casing 1, and a filter plate 20 is fixedly installed inside the casing 1.

[0027] The technical solution provided in this embodiment is as follows: In use, first press the support plate 10 to compress the spring 9, then place the steel pipe to be inspected outside the support plate 10, and then release the support plate 10. The support plate 10 will hold the steel pipe in place due to the rebound of the spring 9. Then, start the pump 13 to draw the magnetic suspension liquid from the inside of the housing 1 through the rubber tube 16, and then spray the magnetic suspension liquid onto the surface of the steel pipe through the support tube 14 and the nozzle 15. Then, start the first motor 5 and the second motor 7 to rotate the rotating shaft 6 and the lead screw 8 respectively. When the rotating shaft 6 rotates, it will drive the steel pipe. When the lead screw 8 rotates, it can move the movable table 2, so that the magnetic suspension liquid can be evenly sprayed onto the surface of the steel pipe. After the spraying is completed, the detection device 17 can inspect the steel pipe through the detection head 18 and the magnetic coil 12, and then display the results on the display 19.

[0028] Furthermore, a magnetic coil 12 is fixedly installed inside the movable platform 2, and a pump 13 is fixedly installed on the top of the movable platform 2.

[0029] Specifically, by fixing the magnetic coil 12 inside the movable platform 2, the magnetic coil 12 can be moved when the movable platform 2 is moved, and the probe head 18 can be used to detect whether the steel pipe has defects.

[0030] Furthermore, a support pipe 14 is fixedly installed at the output end of the pump 13, a nozzle 15 is fixedly installed at one end of the support pipe 14, and a rubber hose 16 is fixedly installed at the input end of the pump 13.

[0031] Specifically, by fixing the rubber tube 16 to the input end of the pump 13, the rubber tube 16 can be moved when the pump 13 moves, preventing the rubber tube 16 from obstructing the movement of the pump 13.

[0032] Furthermore, a detection device 17 is fixedly installed on the top of the activity platform 2, a detection head 18 is fixedly installed on one side of the detection device 17, and a display 19 is fixedly installed on the front of the chassis 1.

[0033] Specifically, by fixing the display 19 to the front of the chassis 1, the results detected by the probe 18 can be displayed on the display 19, so that the workers can clearly know the flaw detection results of the steel pipe.

[0034] Furthermore, both the lead screw 8 and the slide bar 11 are located inside the movable table 2, and the lead screw 8 is threadedly connected to the movable table 2, while the movable table 2 is slidably disposed outside the slide bar 11.

[0035] Specifically, by threading the lead screw 8 to the movable table 2, the movable table 2 can be moved when the lead screw 8 is rotated, thereby enabling the pump 13 and the detection device 17 to spray magnetic fluid and perform flaw detection on the steel pipe. By sliding the movable table 2 outside the slide rod 11, the two slide rods 11 can support the movable table 2.

[0036] Furthermore, both the lead screw 8 and the rotating shaft 6 are fixedly mounted with fixed bearings on their exteriors, and both the lead screw 8 and the rotating shaft 6 are mounted inside the housing 1 via fixed bearings.

[0037] Specifically, by installing both the lead screw 8 and the rotating shaft 6 inside the housing 1 through fixed bearings, it is possible to prevent the lead screw 8 and the rotating shaft 6 from directly rubbing against the housing 1, thus affecting the service life of the device.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A magnetic flux spraying device for a magnetic particle flaw detector, characterized in that, include: Chassis (1) and mobile platform (2); A fixing plate (3) is fixedly installed on one side of the chassis (1), a fixing member (4) is fixedly installed on the top of the fixing plate (3), a first motor (5) is fixedly installed inside the fixing member (4), a rotating shaft (6) is fixedly installed at the output end of the first motor (5), a second motor (7) is fixedly installed inside the fixing member (4), and a lead screw (8) is fixedly installed at the output end of the second motor (7). A spring (9) is fixedly installed on the outside of the rotating shaft (6), a support plate (10) is fixedly installed on one end of the spring (9), a slide rod (11) is fixedly installed inside the housing (1), and a filter plate (20) is fixedly installed inside the housing (1).

2. The magnetic flux spraying device for a magnetic particle flaw detector according to claim 1, characterized in that: A magnetic coil (12) is fixedly installed inside the movable platform (2), and a pump (13) is fixedly installed on the top of the movable platform (2).

3. The magnetic flux spraying device for a magnetic particle flaw detector according to claim 2, characterized in that: A support pipe (14) is fixedly installed at the output end of the pump (13), a nozzle (15) is fixedly installed at one end of the support pipe (14), and a rubber tube (16) is fixedly installed at the input end of the pump (13).

4. The magnetic flux spraying device for a magnetic particle flaw detector according to claim 1, characterized in that: A detection device (17) is fixedly installed on the top of the active platform (2), a detection head (18) is fixedly installed on one side of the detection device (17), and a display (19) is fixedly installed on the front of the chassis (1).

5. The magnetic flux spraying device for a magnetic particle flaw detector according to claim 1, characterized in that: The lead screw (8) and the slide bar (11) are both located inside the movable table (2), and the lead screw (8) is threadedly connected to the movable table (2), while the movable table (2) is slidably disposed outside the slide bar (11).

6. The magnetic flux spraying device for a magnetic particle flaw detector according to claim 1, characterized in that: Both the lead screw (8) and the rotating shaft (6) are fixedly mounted with fixed bearings on their exteriors, and both the lead screw (8) and the rotating shaft (6) are mounted inside the housing (1) through fixed bearings.

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