Flaw detection device for machine maintenance

Abstract

The utility model relates to the technical field of flaw detection devices, in particular to a flaw detection device for machine maintenance, which comprises a detection device body and a detection unit, and the detection unit is connected with the detection device body through a data line; the detection unit comprises a sleeve and an insertion pipe, the insertion pipe is movably connected with the sleeve in an inserted mode, a plurality of sensors are arranged at one end of the insertion pipe, the other end of the insertion pipe penetrates through the sleeve and is fixedly connected with a pressing part, and a reset spring is arranged between the pressing part and the insertion pipe. By arranging the insertion pipe and arranging the sensors on the insertion pipe, the insertion pipe can extend into a machine for detection, machine parts do not need to be disassembled, the detection efficiency is improved, the insertion pipe can extend into the deep position of a tubular structure part, the part is comprehensively detected, the detection error is reduced, and the detection accuracy is improved. And the cannula and the sensor are protected through the sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of flaw detection devices, in particular to a flaw detection device for machine maintenance. Background Art

[0002] Flaw detection in machine maintenance is an important non-destructive testing technology designed to identify defects inside and on the surface of materials to ensure the reliability and safety of equipment. Common flaw detection methods include ultrasonic testing, radiographic testing, magnetic particle testing, and penetrant testing, which are applied to many fields such as welded joints, castings, and forgings. This technology is crucial for preventing equipment failures and accidents. It can detect potential problems in a timely manner, reduce long-term maintenance costs, and meet industry safety standards and regulations. Flaw detection is widely used in industries such as aviation, automobiles, and petrochemicals. For example, in the aviation field, regular inspections of aircraft fuselages and engines are important measures to ensure flight safety.

[0003] Existing machine maintenance and inspection procedures require disassembling machine parts and moving them to the device to be inspected. For example, Chinese Patent Publication No. CN220455221U discloses a "maintenance and inspection device" that uses ultrasonic radiation to detect cracks within a mechanical component body by emitting ultrasonic waves through an ultrasonic probe. A motor drives a screw to rotate, adjusting the spacing between two sliders and, consequently, the spacing between two clamping assemblies, making it easier to clamp and secure mechanical components of varying diameters. Adjusting the length of the output rod of an electric telescopic rod adjusts the height of the mechanical component body, ensuring that the fan-shaped ultrasonic waves cover the entire mechanical component body.

[0004] However, in actual use, mechanical parts are difficult to disassemble and assemble, which affects the detection efficiency. Some tubular parts cannot be inspected in depth during inspection, resulting in large errors in the detection results. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art, such as the trouble of disassembling and assembling mechanical parts, which affects the detection efficiency, and the problem that some tubular structure parts cannot be deeply inspected during inspection, resulting in large errors in the inspection results. A flaw detection device for machine maintenance is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A flaw detection device for machine maintenance is designed, comprising a detection device body and a detection unit, wherein the detection unit is connected to the detection device body via a data line;

[0008] The detection unit includes a sleeve and an insertion tube, the insertion tube is movably connected to the sleeve, one end of the insertion tube is provided with multiple sensors, the other end of the insertion tube passes through the sleeve and is fixedly connected to a pressing part, a reset spring is provided between the pressing part and the insertion tube, and the data line passes through the insertion tube and is connected to the multiple sensors.

[0009] Furthermore, a support portion cooperating with the return spring is fixedly provided on one side of the sleeve close to the pressing portion, a threaded hole is provided on the support portion, and a threaded tube cooperating with the threaded hole is fixedly provided on the pressing portion.

[0010] Furthermore, a connecting tube is fixedly provided on the inserting tube, the connecting tube is rotatably connected to the threaded tube, wing plates are fixedly provided on both sides of the supporting portion, and a threading tube that matches the data cable is fixedly provided on the pressing portion.

[0011] Furthermore, one end of the cannula having the sensor is fixedly provided with a plurality of elastic sheets, and the sensors are all provided on the elastic sheets.

[0012] Furthermore, a guide portion is fixedly provided at one end of the sleeve close to the sensor, and a guide groove with an arc is provided on the guide portion.

[0013] Furthermore, a guide spring is fixedly connected between the guide portion and the sleeve, and both the sleeve and the insertion tube are gooseneck tubes.

[0014] The utility model proposes a flaw detection device for machine maintenance, which has the following beneficial effects:

[0015] In the present invention, by providing a cannula and arranging a sensor on the cannula, the cannula can be inserted deep into the machine for detection without removing the machine parts, thereby improving detection efficiency. In addition, the cannula can be extended deep into the tubular structure parts to fully detect the parts, thereby reducing detection errors.

[0016] Secondly, in the present invention, the cannula and the sensor are protected by the sleeve. When not in use, the reset spring drives the pressing part and the cannula to move, so that the end of the cannula with the sensor is retracted into the sleeve. In addition, the cannula and the sleeve are both gooseneck tubes with a certain deformation range, which can detect bent tubular parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a flaw detection device for machine maintenance proposed by the utility model;

[0018] Figure 2 This is a schematic structural diagram of the casing of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of area A of the present utility model;

[0020] Figure 4 It is a structural schematic diagram of the elastic sheet of the utility model.

[0021] In the figure: 1. Detection device body; 2. Detection unit; 3. Data cable; 4. Sleeve; 41. Guide portion; 42. Guide groove; 43. Guide spring; 5. Insertion tube; 51. Connecting tube; 52. Elastic sheet; 6. Sensor; 7. Pressing portion; 8. Return spring; 81. Support portion; 82. Threaded hole; 83. Threaded tube; 84. Wing plate; 85. Threading tube. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-4 , a flaw detection device for machine maintenance, comprising a detection device body 1 and a detection unit 2, wherein the detection unit 2 is connected to the detection device body 1 via a data line 3;

[0024] The detection unit 2 includes a sleeve 4 and a cannula 5, which is movably connected to the sleeve 4. One end of the cannula 5 is provided with multiple sensors 6. The other end of the cannula 5 passes through the sleeve 4 and is fixedly connected to a pressing part 7. A reset spring 8 is provided between the pressing part 7 and the cannula 5. The data line 3 passes through the cannula 5 and is connected to multiple sensors 6.

[0025] In the present invention, by arranging a sensor 6 on the cannula 5, the sensor 6 on the cannula 5 can be inserted deep into the machine for detection without removing the machine parts, thereby improving the detection efficiency, and the cannula 5 can be extended into the depths of small tubular structural parts to comprehensively detect the parts and reduce the detection error. The cannula 5 and the sensor 6 are protected by the sleeve 4. When not in use, the reset spring 8 drives the pressing part 7 and the cannula 5 to move, so that the end of the cannula 5 with the sensor 6 is retracted into the sleeve 4 to prevent it from being damaged by bumps. The sensor 6 is a detection sensor such as an ultrasonic sensor, a camera module, etc., which uploads the collected data to the detection device body 1 for processing and display.

[0026] Furthermore, in this embodiment, a support portion 81 that cooperates with the return spring 8 is fixedly provided on one side of the sleeve 4 close to the pressing portion 7, and a threaded hole 82 is provided on the support portion 81. A threaded tube 83 that cooperates with the threaded hole 82 is fixedly provided on the pressing portion 7. By cooperating with the threaded tube 83 and the threaded hole 82, the length of the part of the cannula 5 extending out of the sleeve 4 can be fixed, thereby avoiding continuously applying force to the pressing portion 7 and increasing the burden on the operator.

[0027] Furthermore, in this embodiment, a connecting tube 51 is fixedly provided on the cannula 5, and the connecting tube 51 is rotatably connected to the threaded tube 83. Wing plates 84 are fixedly provided on both sides of the support portion 81. A threading tube 85 that cooperates with the data cable 3 is fixedly provided on the pressing portion 7. The data cable 3 is connected to the sensor 6 in sequence through the threading tube 85, the threaded tube 83, the connecting tube 51, and the cannula 5.

[0028] It should be noted that, in this embodiment, a plurality of elastic sheets 52 are fixedly provided at one end of the cannula 5 having the sensor 6, and the sensors 6 are all provided on the elastic sheets 52. When the cannula 5 extends out of the sleeve 4, the elastic sheets 52 open, and the parts can be scanned and detected at multiple angles, thereby reducing detection errors.

[0029] In addition, in this embodiment, a guide portion 41 is fixedly provided at one end of the sleeve 4 close to the sensor 6, and a guide groove 42 with an arc is provided on the guide portion 41. The guide portion 41 facilitates the insertion of the sleeve 4 into the machine equipment, and cooperates with the elastic sheet 52 through the guide groove 42. When the insertion tube 5 is retracted into the sleeve 4, the guide groove 42 applies force to the elastic sheet 52 so that the elastic sheet 52 is deformed and retracted into the sleeve 4.

[0030] In more detail, in this embodiment, a guide spring 43 is fixedly connected between the guide portion 41 and the sleeve 4, and the sleeve 4 and the insertion tube 5 are both gooseneck tubes. The guide spring 43 cooperates with the guide portion 41 to facilitate the insertion of the sleeve 4 into the curved tubular part, and the sleeve 4 and the insertion tube 5 are both gooseneck tubes, which can be deformed deep into the curved tubular part.

[0031] Working method: During operation, the guide spring 43 cooperates with the guide part 41 to facilitate the insertion of the sleeve 4 into the curved tubular part, and the sleeve 4 is used to protect the cannula 5 and the sensor 6. When it is in place, the pressing part 7 is forced to drive the threaded tube 83 and the cannula 5 to move, so that the cannula 5 extends out of the sleeve 4, and the threaded tube 83 is threadedly connected to the threaded hole 82 by rotating the pressing part 7, and the length of the part of the cannula 5 extending out of the sleeve 4 is fixed. When the cannula 5 extends out of the sleeve 4, the elastic sheet 52 opens, and the parts can be scanned and inspected at multiple angles to reduce the inspection error, and the collected data is uploaded to the inspection device body 1 for processing and display. After the inspection is completed, the pressing part 7 is rotated to separate the threaded tube 83 from the threaded hole 82, and the reset spring 8 drives the pressing part 7 and the cannula 5 to move, so that the end of the cannula 5 with the sensor 6 is retracted into the sleeve 4 to prevent it from being damaged by bumps.

[0032] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flaw detection device for machine maintenance, comprising a detection device body (1) and a detection unit (2), characterized in that: The detection unit (2) is connected to the detection device body (1) via a data line (3); The detection unit (2) includes a sleeve (4) and an insertion tube (5), wherein the insertion tube (5) is movably connected to the sleeve (4), a plurality of sensors (6) are provided at one end of the insertion tube (5), the other end of the insertion tube (5) passes through the sleeve (4) and is fixedly connected to a pressing portion (7), a reset spring (8) is provided between the pressing portion (7) and the insertion tube (5), and the data line (3) passes through the insertion tube (5) and is connected to the plurality of sensors (6).

2. The flaw detection device for machine maintenance according to claim 1, characterized in that: A support portion (81) that matches the return spring (8) is fixedly provided on one side of the sleeve (4) close to the pressing portion (7); a threaded hole (82) is provided on the support portion (81); and a threaded tube (83) that matches the threaded hole (82) is fixedly provided on the pressing portion (7).

3. The flaw detection device for machine maintenance according to claim 2, characterized in that: A connecting tube (51) is fixedly provided on the inserting tube (5), and the connecting tube (51) is rotatably connected to the threaded tube (83). Wing plates (84) are fixedly provided on both sides of the supporting portion (81), and a threading tube (85) that matches the data cable (3) is fixedly provided on the pressing portion (7).

4. The flaw detection device for machine maintenance according to claim 1, characterized in that: The cannula (5) has a sensor (6) at one end thereof, and a plurality of elastic sheets (52) are fixedly provided thereon, and the sensors (6) are all provided on the elastic sheets (52).

5. The flaw detection device for machine maintenance according to claim 4, characterized in that: A guide portion (41) is fixedly provided at one end of the sleeve (4) close to the sensor (6), and a guide groove (42) with an arc is provided on the guide portion (41).

6. The flaw detection device for machine maintenance according to claim 5, characterized in that: A guide spring (43) is fixedly connected between the guide portion (41) and the sleeve (4), and both the sleeve (4) and the insertion tube (5) are gooseneck tubes.

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