Anti-blocking magnetic particle flaw detector device

Abstract

The utility model relates to an anti-blocking magnetic particle flaw detector device which comprises a bracket (10), a connecting pipe (11); a plurality of spraying holes (21) are formed in one end of the spraying head (12), a top ring (22) is arranged in the spraying head (12) in a sliding mode, and ejector pins (23) corresponding to the spraying holes (21) are arranged on the top ring (22); an impeller (30) is rotationally arranged in the spray head (12) in the radial direction of the spray head (12), and a driving disc (31) is arranged at the end of the impeller (30); the high-pressure magnetic suspension flows into the spray head (12) through the connecting pipe (11) and is sprayed to a workpiece through the spray hole (21) in the spray head (12), and meanwhile, the impeller (30) and the driving disc (31) are made to rotate, the top ring (22) is driven to slide in the spray head (12) in a reciprocating mode, and the ejector pin (23) is made to move in the spray hole (21) in a reciprocating mode, so that the spray hole (21) is automatically cleaned in real time instead of manual work, cleaning is not needed when the spray head (12) is blocked, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline flaw detection, in particular to an anti-blocking magnetic particle flaw detector device. Background Art

[0002] Magnetic particle flaw detection is a commonly used method for detecting workpiece defects at present. Its principle is that after ferromagnetic materials are 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, which adsorbs magnetic powder on the surface of the workpiece and forms magnetic marks, thereby showing the position, shape and size of the discontinuities. Magnetic particle flaw detection can detect defects such as cracks and hair cracks in ferromagnetic materials, has high detection sensitivity, and can intuitively show the position, shape, size and severity of the defects. Existing magnetic particle flaw detectors generally use pre-prepared magnetic suspension for the flaw detection preparation process.

[0003] The Chinese utility model patent with the authorization announcement number of CN217484250U discloses an anti-blocking magnetic particle flaw detector that facilitates the dredging of magnetic powder. Press the movable plate to insert the insertion pin into the water outlet nozzle to dredge it and avoid blockage. However, its defect is that manual pressing action is required to clean the nozzle, which is inconvenient to use. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that existing magnetic particle flaw detectors require manual pressing actions to clean the nozzles, which is inconvenient to use.

[0005] To solve the above problems, the utility model provides an anti-blocking magnetic particle flaw detector device, which includes a bracket. A connecting pipe is fixed on the bracket. A plurality of nozzles are fixedly communicated with the connecting pipe at intervals. One end of the nozzle is provided with a plurality of spray holes. A top ring is slidably arranged in the nozzle. A top pin corresponding to the spray hole is arranged on the top ring. A wave wheel is rotatably arranged in the nozzle along its radial direction. A driving disc is arranged at the end of the wave wheel for reciprocatingly sliding the top ring in the nozzle.

[0006] The anti-blocking magnetic particle flaw detector device provided by the utility model also has the following technical features:

[0007] The wave wheel includes a rotating shaft and blades. The rotating shaft is rotatably connected with the nozzle. A plurality of blades are arranged at intervals in the circumferential direction of the rotating shaft. The end of the rotating shaft extends out of the nozzle and is fixed to the driving disc. A retaining pin is eccentrically fixed on the driving disc. A sliding rod is fixed on the outer circumferential surface of the top ring. The sliding rod slides along the nozzle. A push rod is fixed at the end of the sliding rod. A long hole is opened along the length direction of the push rod. The retaining pin is arranged in the long hole.

[0008] The sliding rod includes a first rod and a second rod. One end of the first rod is fixed to the outer circumferential surface of the top ring, the other end of the first rod is perpendicularly fixed to one end of the second rod, and the other end of the second rod is fixed to the push rod. A sliding hole is formed in the side wall of the nozzle, and the first rod slides hermetically along the sliding hole.

[0009] A sliding groove is formed in the side wall of the nozzle, and the sliding groove is located inside the sliding hole. A sliding plate is perpendicularly fixed to the first rod, and the sliding plate slides hermetically along the sliding groove.

[0010] The axis of the rotating shaft is arranged away from the central plane of the nozzle.

[0011] A plurality of nozzles are fixed to one end of the nozzle, and the nozzles are arranged corresponding to the spray holes.

[0012] The other end of the nozzle is fixedly communicated with one end of the installation pipe, the other end of the installation pipe is clamped with a shaping pipe, and the shaping pipe is fixedly communicated with the connecting pipe.

[0013] A main machine, a magnetization coil, and a positioning seat are sequentially arranged on the bracket along the length direction of the connecting pipe. The magnetization coil and the positioning seat are slidably arranged on the bracket, and magnetization electrodes are oppositely arranged on the main machine and the positioning seat.

[0014] A lighting lamp is arranged on the bracket, and the lighting lamp is located above the nozzle.

[0015] The utility model has the following beneficial effects: The high-pressure magnetic suspension liquid flows into the nozzle through the connecting pipe and is sprayed onto the workpiece through the spray holes on the nozzle. At the same time, the wave wheel and the driving disc rotate, driving the top ring to slide back and forth in the nozzle, so that the top needle moves back and forth in the spray hole, so as to automatically clean the spray hole in real time instead of manually, and there is no need to clean when the nozzle is blocked, which is more convenient to use. Description of the Drawings

[0016] Figure 1 is the front view of the utility model;

[0017] Figure 2 is the sectional view of the nozzle;

[0018] Figure 3 is the internal structure diagram of the nozzle;

[0019] Figure 4 is Figure 2 the partial enlarged view of. Detailed Embodiment

[0020] The utility model will be described in detail below with reference to the drawings and in combination with embodiments. It should be noted that, without conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0021] Such as Figures 1 to 4As shown in the figure, the anti-blocking magnetic particle flaw detector device of the present utility model includes a bracket 10, a connecting pipe 11 is fixed on the bracket 10, and a plurality of spray nozzles 12 are fixedly communicated with the connecting pipe 11 at intervals. One end of the spray nozzle 12 is provided with a plurality of spray holes 21, a top ring 22 is slidably arranged in the spray nozzle 12, and a top needle 23 corresponding to the spray hole 21 is arranged on the top ring 22; a wave wheel 30 is rotatably arranged in the spray nozzle 12 along its radial direction, and a driving disc 31 is arranged at the end of the wave wheel 30 for reciprocating sliding of the top ring 22 in the spray nozzle 12.

[0022] The high-pressure magnetic suspension liquid flows into the spray nozzle 12 through the connecting pipe 11 and is sprayed onto the workpiece through the spray holes 21 on the spray nozzle 12. At the same time, the wave wheel 30 and the driving disc 31 rotate, driving the top ring 22 to reciprocate in the spray nozzle 12, so that the top needle 23 reciprocates in the spray hole 21 to automatically clean the spray hole 21 in real time instead of manually, without waiting for the spray nozzle 12 to be blocked for cleaning, which is more convenient to use.

[0023] Among them, one end of the connecting pipe 11 is closed, the other end of the connecting pipe 11 is communicated with the liquid storage tank, and the liquid storage tank is provided with a feeding port and a water adding port; an air pump is arranged outside the liquid storage tank, and the air charging end of the air pump extends into the liquid storage tank to increase the pressure in the liquid storage tank; a stirring device can also be arranged in the liquid storage tank to prevent the magnetic suspension liquid from precipitating; the above structure is the prior art and will not be elaborated here.

[0024] Among them, the diameter of the top needle 23 is smaller than the diameter of the spray hole 21, preferably half of the diameter of the spray hole 21; a fillet is arranged at one end of the top needle 23 away from the top ring 22.

[0025] Among them, driving discs 31 are arranged at both ends of the wave wheel 30 to achieve a more stable driving effect on the top ring 22.

[0026] Preferably, the wave wheel 30 includes a rotating shaft 32 and blades 33. The rotating shaft 32 is rotatably connected to the spray nozzle 12, and a plurality of blades 33 are arranged at intervals around the circumference of the rotating shaft 32; the end of the rotating shaft 32 extends out of the spray nozzle 12 and is fixed to the driving disc 31, and a pin 34 is eccentrically fixed on the driving disc 31; a sliding rod 35 is fixed on the outer circumferential surface of the top ring 22, the sliding rod 35 slides along the spray nozzle 12, a push rod 36 is fixed at the end of the sliding rod 35, and a long strip hole 37 is arranged along the length direction of the push rod 36, and the pin 34 is arranged in the long strip hole 37.

[0027] The high-pressure magnetic suspension liquid flows into the spray nozzle 12 through the connecting pipe 11, causing the wave wheel 30 and the driving disc 31 to rotate. Through the cooperation of the pin 34 and the long strip hole 37, the sliding rod 35 is driven to reciprocate along the spray nozzle 12, thereby driving the top ring 22 to reciprocate in the spray nozzle 12, so that the top needle 23 reciprocates in the spray hole 21 to automatically clean the spray hole 21 in real time instead of manually.

[0028] Among them, the length of the long strip hole 37 is greater than twice the eccentricity of the pin 34 with respect to the driving disc 31.

[0029] Preferably, the sliding rod 35 includes a first rod 38 and a second rod 39. One end of the first rod 38 is fixed to the outer circumferential surface of the top ring 22, the other end of the first rod 38 is perpendicularly fixed to one end of the second rod 39, and the other end of the second rod 39 is fixed to the push rod 36; a sliding hole 40 is formed in the side wall of the nozzle 12, and the first rod 38 slides sealingly along the sliding hole 40.

[0030] Wherein, the length of the sliding hole 40 is greater than or equal to twice the eccentricity of the retaining pin 34 with respect to the drive disk 31.

[0031] Preferably, a sliding groove 41 is formed in the side wall of the nozzle 12, and the sliding groove 41 is located in the sliding hole 40; a sliding plate 42 is perpendicularly fixed to the first rod 38, and the sliding plate 42 slides sealingly along the sliding groove 41.

[0032] Wherein, the length of the sliding plate 42 is greater than or equal to twice the length of the sliding hole 40, and the width of the sliding plate 42 is greater than the width of the sliding hole 40; the length of the sliding groove 41 is greater than or equal to three times the length of the sliding hole 40, and the width of the sliding groove 41 is greater than the width of the sliding plate 42.

[0033] Wherein, the sliding plate 42 is made of a rubber sealing material, and of course, it can also be other materials capable of sliding and sealing, such as polytetrafluoroethylene, nylon, etc.

[0034] Preferably, the axis of the rotating shaft 32 is arranged away from the central plane of the nozzle 12.

[0035] It is convenient for the high-pressure magnetic suspension liquid shock wave wheel 30 and makes it rotate continuously.

[0036] Wherein, two wave wheels 30 can be symmetrically arranged with respect to the central plane of the nozzle 12 to achieve a more stable pushing effect on the top ring 22.

[0037] Preferably, a plurality of nozzles 24 are fixed to one end of the nozzle 12, and the nozzles 24 are arranged corresponding to the spray holes 21.

[0038] Wherein, the nozzle 24 is conically arranged, and the diameter of the nozzle 24 becomes smaller as it is farther away from the nozzle 12 to achieve the aggregation of the magnetic suspension liquid.

[0039] Preferably, the other end of the nozzle 12 is fixedly communicated with one end of the installation pipe 13, the other end of the installation pipe 13 is clamped with a shaping pipe 14, and the shaping pipe 14 is fixedly communicated with the connecting pipe 11.

[0040] Wherein, the inner surface of the other end of the installation pipe 13 is provided with a sealing ring and a snap structure to achieve the sealed communication between the installation pipe 13 and the shaping pipe 14.

[0041] Wherein, a solenoid valve is arranged in the shaping pipe 14 to control whether the nozzle 12 sprays the magnetic suspension liquid onto the workpiece.

[0042] Preferably, a main unit 15, a magnetization coil 16, and a positioning seat 17 are sequentially arranged on the bracket 10 along the length direction of the connecting pipe 11. The magnetization coil 16 and the positioning seat 17 are slidably arranged on the bracket 10, and magnetization electrodes are oppositely arranged on the main unit 15 and the positioning seat 17.

[0043] Among them, before performing magnetic particle flaw detection on the workpiece, the workpiece is first pretreated, including steps such as cleaning, rust removal, and grinding; the main unit 15 generally includes a power supply module, a control module, and a display module. The power supply module provides a stable power output. The control module controls the current and magnetic field strength of the magnetization coil 16. The display module is used to display the detection results and parameter settings; the magnetization coil 16 is used to generate a magnetic field and can adjust the current and magnetic field strength according to the control signal of the main unit; the magnetization electrode is a connecting device between the magnetization coil 16 and the workpiece and is used to introduce the magnetic field into the workpiece.

[0044] Preferably, a lighting lamp 18 is arranged on the bracket 10, and the lighting lamp 18 is located above the spray head 12.

[0045] The working principle of the present utility model is as follows:

[0046] The workpiece is installed on the main unit 15 and the positioning seat 17. The magnetic suspension liquid prepared in the liquid storage tank is sent into the connecting pipe 11 by using an air pump and is evenly sprayed onto the surface of the workpiece through the spray head 12 at a certain distance and speed. The main unit 15 is used to control the magnetization coil 16 to perform magnetization treatment on the workpiece. Then, observe the magnetic powder deposition on the surface of the workpiece. Obvious magnetic powder aggregation will form at the defective part. After observation and recording, the magnetic powder on the surface of the workpiece is cleaned. During the process of spraying the magnetic suspension liquid onto the surface of the workpiece, the high-pressure magnetic suspension liquid flows into the spray head 12 through the connecting pipe 11, and the high-pressure magnetic suspension liquid flows into the spray head 12 through the connecting pipe 11, causing the wave wheel 30 and the driving disk 31 to rotate. Through the cooperation of the pin 34 and the long hole 37, the slide rod 35 is driven to reciprocate along the spray head 12, thereby driving the top ring 22 to reciprocate in the spray head 12, causing the thimble 23 to reciprocate in the spray hole 21, so as to automatically clean the spray hole 21 in real time instead of manually, without waiting for the spray head 12 to be blocked for cleaning, which is more convenient to use.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model.

Claims

1. An anti-blocking magnetic particle flaw detector device, comprising a bracket (10), a connecting pipe (11) fixed on the bracket (10), and a plurality of nozzles (12) fixedly connected to the connecting pipe (11) at intervals, characterized in that: A plurality of spray holes (21) are provided at one end of the spray head (12); a top ring (22) is slidably provided inside the spray head (12); and a top pin (23) corresponding to the spray hole (21) is provided on the top ring (22); a pulsator (30) is rotatably provided in the spray head (12) along its radial direction, and a driving disk (31) is provided at the end of the pulsator (30) for causing the top ring (22) to slide back and forth inside the spray head (12).

2. The anti-blocking magnetic particle flaw detector device according to claim 1 is characterized in that: The impeller (30) comprises a rotating shaft (32) and blades (33), wherein the rotating shaft (32) is rotatably connected to the nozzle (12), and a plurality of blades (33) are arranged at intervals in the circumferential direction of the rotating shaft (32); the end of the rotating shaft (32) extends out of the nozzle (12) and is fixed to the driving disk (31), and a bayonet (34) is eccentrically fixed to the driving disk (31); a sliding rod (35) is fixed to the outer circumferential surface of the top ring (22), and the sliding rod (35) slides along the nozzle (12); a push rod (36) is fixed to the end of the sliding rod (35), and a long hole (37) is opened on the push rod (36) along its length direction, and the bayonet (34) is arranged in the long hole (37).

3. The anti-blocking magnetic particle flaw detector device according to claim 2 is characterized in that: The sliding rod (35) comprises a first rod (38) and a second rod (39); one end of the first rod (38) is fixed to the outer circumferential surface of the top ring (22); the other end of the first rod (38) is vertically fixed to one end of the second rod (39); and the other end of the second rod (39) is fixed to the push rod (36); a sliding hole (40) is provided on the side wall of the nozzle (12); and the first rod (38) slides along the sliding hole (40) in a sealed manner.

4. The anti-blocking magnetic particle flaw detector device according to claim 3 is characterized in that: A slide groove (41) is provided on the side wall of the nozzle (12), and the slide groove (41) is located in the slide hole (40); a slide plate (42) is vertically fixed on the first rod (38), and the slide plate (42) slides along the slide groove (41) in a sealed manner.

5. The anti-blocking magnetic particle flaw detector device according to claim 1 is characterized in that: The axis of the rotating shaft (32) is arranged away from the center plane of the spray head (12).

6. The anti-blocking magnetic particle flaw detector device according to claim 1, characterized in that: A plurality of nozzles (24) are fixed to one end of the spray head (12), and the nozzles (24) are arranged corresponding to the spray holes (21).

7. The anti-blocking magnetic particle flaw detector device according to claim 1 is characterized in that: The other end of the nozzle (12) is fixedly connected to one end of the mounting tube (13); the other end of the mounting tube (13) is clamped with a shaping tube (14); and the shaping tube (14) is fixedly connected to the connecting tube (11).

8. The anti-blocking magnetic particle flaw detector device according to claim 1 is characterized in that: The support (10) is provided with a main unit (15), a magnetizing coil (16), and a positioning seat (17) in sequence along the length direction of the connecting pipe (11); the magnetizing coil (16) and the positioning seat (17) are slidably arranged on the support (10); and magnetizing electrodes are arranged on the main unit (15) and the positioning seat (17) in a manner opposite to each other.

9. The anti-blocking magnetic particle flaw detector device according to claim 1, characterized in that: The bracket (10) is provided with a lighting lamp (18), and the lighting lamp (18) is located above the spray head (12).

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