An ultrasonic detection device for the weld of a GIS housing

Abstract

The present invention relates to the technical field of ultrasonic testing devices, and specifically to an ultrasonic testing device for welding seams of a GIS housing, including a GIS housing. A weld seam is provided on the surface of the GIS housing, and a circumferential seam ultrasonic walking detection mechanism is movably installed on the surface of the GIS housing. Through the setting of the circumferential seam ultrasonic walking detection mechanism, the entire detection device can move flexibly on the surface of the GIS housing while maintaining a stable detection position. By the cooperation of the swing arm and the GIS housing walking lubrication assembly, it is ensured that the ultrasonic testing device can adapt to the surface of the housing with different curvatures, increasing the applicability and flexibility of the device; with the optimized design of the GIS housing walking lubrication assembly, it not only provides lubrication for the movement of the detection device, but also can effectively collect dust and impurities around the weld seam, enabling the lubricating oil to be evenly distributed on the GIS housing walking path, reducing friction and wear, and at the same time avoiding waste of the lubricating oil.

Description

Technical Field

[0001] The present invention relates to the technical field of ultrasonic detection devices, and particularly to an ultrasonic detection device for welding GIS shell welds. Background Technique

[0002] Ultrasonic detection is a non-destructive testing technique that mainly uses the propagation characteristics of ultrasonic waves in materials to detect the quality of welds. In the detection of GIS shell welds, the ultrasonic detection device analyzes whether there are defects inside the weld by emitting ultrasonic waves and receiving the signals reflected back. This ultrasonic detection method has the advantages of convenient operation, high detection sensitivity, and no damage to materials, so it is widely used in the quality detection of GIS shell welds.

[0003] In the prior art, such as a pipeline spiral weld ultrasonic scanning device with the publication number CN214408801U, which includes a moving frame and a scanning frame. The moving frame includes a connecting cross beam, roller assemblies provided at both ends of the connecting cross beam, and a handle provided in the middle of the connecting cross beam. The scanning frame includes a connecting longitudinal beam perpendicularly connected to the connecting cross beam and at least one group of scanning assemblies provided on the connecting longitudinal beam; the roller assembly includes a roller mounting frame, a magnetic roller provided on the roller mounting frame, and an encoder with an input shaft connected to the roller main shaft. The roller mounting frame includes a roller mounting seat fixedly provided at the end of the connecting cross beam and a connecting seat connected to the roller mounting seat.

[0004] Although it solves the problem of low weld efficiency of traditional weld ultrasonic detection devices, the prior art uses a method of setting roller assemblies at both ends of the connecting cross beam and scanning assemblies on the connecting longitudinal beam. However, in actual use, the existing detection device usually affects the detection effect of the detector weld due to impurities on the pipeline surface, reducing the accuracy of data analysis and unable to achieve precise and efficient detection.

[0005] Therefore, the present invention proposes an ultrasonic detection device for welding GIS shell welds to solve the problem that the existing detection device usually affects the detection effect of the detector weld due to impurities on the pipeline surface and reduces the accuracy of data analysis, and can ensure that during the ultrasonic detection of GIS shell welds, the surrounding of the GIS shell weld can also be lubricated with oil to ensure the efficient detection of the ultrasonic detection structure. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an ultrasonic detection device for welding GIS shell welds to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present invention provides the following technical solution: An ultrasonic detection device for welding seams of a GIS housing, including a GIS housing, on the surface of which there is a welded seam. A circumferential seam ultrasonic walking detection mechanism is movably installed on the surface of the GIS housing. The circumferential seam ultrasonic walking detection mechanism includes a support unit and a limit walking unit. The limit walking unit is arranged on both sides of the support unit. The limit walking unit includes a fixed sleeve plate, a swing arm, and a GIS housing walking lubrication assembly. The support unit includes a horizontal truss, end plates, and a vertical truss.

[0008] Preferably, both ends of the horizontal truss are fixedly connected to the inner sides of the end plates. Installation holes are formed on the inner wall of the horizontal truss. An installation rod penetrates through the inner surface of the installation hole. Both ends of the installation rod are fixedly connected with U-shaped frames. A lining plate is fixedly connected to the lower end of the U-shaped frame. There are two groups of U-shaped frames and lining plates, which are symmetrically distributed about the horizontal central axis of the horizontal truss. The lower end of the lining plate is rotatably connected with an electromagnetic adsorption roller, and the electromagnetic adsorption roller is movably connected to the outer surface of the GIS housing.

[0009] Preferably, force-bearing ring plates are fixedly connected to both upper ends of the vertical truss. A sleeve plate is arranged at the center of the vertical truss. The sleeve plate is integrally formed with the vertical truss. The inner surface of the sleeve plate is fixedly connected to the central outer wall of the horizontal truss. T-shaped limit grooves are respectively formed on both inner walls of the vertical truss. A movable frame is slidably installed on the inner surface of the T-shaped limit groove. An ultrasonic detection probe is detachably installed at the lower end of the movable frame.

[0010] Preferably, the fixed sleeve plate is fixedly installed on the outer surfaces of both ends of the horizontal truss. One end of the swing arm is fixedly connected with a pin shaft. The outer surface of the pin shaft is rotatably connected to the inner walls on both sides of the fixed sleeve plate. The other end of the swing arm is provided with a circular plate, and the circular plate and the swing arm form a "6"-shaped plate structure integrally.

[0011] Preferably, a chute is formed on the inner wall of the swing arm. A sliding block is slidably connected to the inner surface of the chute. The outer side of the sliding block is hinged with a curved abutting spring. The other end of the curved abutting spring is fixedly connected with a diagonal support plate, and the diagonal support plate is fixedly installed on the end plate.

[0012] Preferably, the GIS housing walking lubrication assembly includes a central roller, a rolling bearing, a hollow oil storage roller, and a housing walking wheel. The rolling bearing is arranged inside the circular plate. An arc-shaped weld touch plate is fixedly connected to the outer surface of the central roller. Dust adsorption cotton plates are evenly arranged on the outer surface of the arc-shaped weld touch plate.

[0013] Preferably, connecting columns are fixedly connected to both ends of the central roller. The outer surface of the connecting column is fixedly connected to one end of the hollow oil storage roller. The outer surface of the hollow oil storage roller is rotatably connected to the inner surface of the rolling bearing. An oil injection plug is movably installed at one end of the hollow oil storage roller away from the connecting column.

[0014] Preferably, an oil storage cavity is formed on the central inner wall of the hollow oil storage roller. Threaded grooves are provided on the inner wall of the oil storage cavity. Oil guiding holes are formed through the inner surface of the oil storage cavity.

[0015] Preferably, an oil extension member is arranged between the outer ring of the hollow oil storage roller and the inner ring of the housing traveling wheel. The oil extension member includes an inner sleeve ring plate. The outer surface of the hollow oil storage roller is fixedly connected to the inner surface of the inner sleeve ring plate and the center of the housing traveling wheel. Oil outlet holes are formed on the inner wall of the inner sleeve ring plate. The positions of the oil outlet holes are adapted to those of the oil guiding holes. Annular embedding grooves are formed on the inner wall of the outer ring of the housing traveling wheel. Strip-shaped oil overflow holes are formed on the inner wall of the annular embedding grooves. A friction embedding ring is movably sleeved on the inner side surface of the annular embedding groove.

[0016] Preferably, support inclined plates are fixedly connected to the outer surface of the inner sleeve ring plate. There are six groups of support inclined plates, which are arranged in a circular array about the central axis of the inner sleeve ring plate. One end of the support inclined plate away from the inner sleeve ring plate is fixedly connected to an outer sleeve ring plate. The outer surface of the outer sleeve ring plate is movably abutted against the inner wall of the housing traveling wheel.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] A welding GlS housing weld ultrasonic detection device proposed by the present invention, through the setting of the circumferential weld ultrasonic traveling detection mechanism, enables the entire detection device to move flexibly on the surface of the GlS housing while maintaining a stable detection position. By the cooperation of the swing arm and the GlS housing traveling lubrication assembly, it is ensured that the ultrasonic detection device can adapt to the surfaces of housings with different curvatures, increasing the applicability and flexibility of the device; with the optimized design of the GlS housing traveling lubrication assembly, it not only provides lubrication for the movement of the detection device but also can effectively collect dust and impurities around the weld, enabling the lubricating oil to be evenly distributed on the GlS housing traveling path, reducing friction and wear, and at the same time avoiding waste of lubricating oil; it solves the problem that the existing detection devices usually affect the detection effect of the detector weld due to impurities on the surface of the pipeline, reducing the accuracy of data analysis, and can ensure that during the ultrasonic detection of the GlS housing weld, the area around the GlS housing weld can also be oiled and lubricated to ensure the efficient detection of the ultrasonic detection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic distribution structure diagram of the GlS housing and the circumferential weld ultrasonic traveling detection mechanism of the present invention;

[0020] Figure 2 Schematic diagram of the connection structure between a part of the GlS housing of the present invention and the circumferential weld ultrasonic walking detection mechanism;

[0021] Figure 3 For the present invention Figure 2 Enlarged structure schematic diagram at location A;

[0022] Figure 4 Schematic diagram of the partial disassembled structure of the circumferential weld ultrasonic walking detection mechanism of the present invention;

[0023] Figure 5 Schematic diagram of the partial bottom view structure of the circumferential weld ultrasonic walking detection mechanism of the present invention;

[0024] Figure 6 Schematic diagram of the partial disassembled structure of the GlS housing walking lubrication assembly of the present invention;

[0025] Figure 7 Schematic diagram of the side view cross-section of the GlS housing walking lubrication assembly of the present invention;

[0026] Figure 8 For the present invention Figure 7 Enlarged structure schematic diagram at location B;

[0027] Figure 9 Schematic diagram of the partial disassembled structure of the inner sleeve ring plate and the housing walking wheel of the present invention;

[0028] Figure 10 For the present invention Figure 9 Enlarged structure schematic diagram at location C;

[0029] Figure 11 Schematic diagram of the connection structure between the central roller and the hollow oil storage roller of the present invention;

[0030] Figure 12 Schematic diagram of the disassembled structure between the hollow oil storage roller and the oil injection plug of the present invention;

[0031] Figure 13 Schematic diagram of the half-sectional structure of the inner sleeve ring plate of the present invention;

[0032] Figure 14 For the present invention Figure 13 Enlarged structure schematic diagram at location D of the structure.

[0033] In the figure: 1. GlS housing; 2. Circumferential seam ultrasonic walking detection mechanism; 21. Horizontal truss; 210. Mounting hole; 211. Mounting rod; 212. U-shaped frame; 213. Liner plate; 214. Electromagnetic adsorption roller; 22. End plate; 221. Diagonal brace plate; 222. Miniature dust suction fan; 223. Curved baffle; 23. Vertical truss; 231. Sleeve plate; 230. T-shaped limit groove; 232. Force-receiving ring plate; 233. Movable frame; 234. Ultrasonic detection probe; 24. Fixed sleeve plate; 25. Swing arm; 250. Slide groove; 251. Sliding block; 252. Curved abutting spring; 26. GlS housing walking lubrication assembly; 261. Central roller; 2611. Connecting column; 262. Arc-shaped weld contact plate; 2621. Dust adsorption cotton plate; 263. Rolling bearing; 2631. Baffle; 264. Hollow oil storage roller; 2641. Oil injection plug; 2640. Oil storage cavity; 26400. Thread groove; 26401. Oil guiding hole; 265. Inner sleeve ring plate; 2650. Oil outlet hole; 26501. Oil collecting groove; 2651. Support diagonal plate; 2652. Outer sleeve ring plate; 266. Housing walking wheel; 2660. Strip-shaped oil overflow hole; 2661. Friction insert ring. Detailed implementation mode

[0034] In order to clearly and completely describe the purpose, technical solution of the present invention, and make the advantages more clearly understood, the following further details the embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, not to limit the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0035] Example 1, please refer to Figure 1-14, the present invention provides a technical solution: a welding GlS housing weld ultrasonic detection device, including a GlS housing 1, on the surface of the GlS housing 1 there is a weld seam, the surface of the GlS housing 1 is movably installed with a circumferential weld ultrasonic walking detection mechanism 2, the circumferential weld ultrasonic walking detection mechanism 2 includes a support unit and a limit walking unit, the limit walking unit is arranged on both sides of the support unit, the limit walking unit includes a fixed sleeve plate 24, a swing arm 25 and a GlS housing walking lubrication component 26, the support unit includes a horizontal truss 21, an end plate 22 and a vertical truss 23; on the lower surface of the side of the end plate 22 close to the GlS housing walking lubrication component 26, a micro dust suction fan 222 is movably clamped, which is used for adsorbing impurities swept up, on one side of the micro dust suction fan 222 there is a curved baffle 223, the upper end of the curved baffle 223 is fixedly connected to the lower surface of the end plate 22, which is used to prevent the dust and impurities on the surface of the GlS housing 1 from escaping, avoiding the dust from dispersing around the ultrasonic detection probe 234 and affecting the ultrasonic detection of the welding GlS housing weld, ensuring that the detection data is more accurate;

[0036] In this embodiment, through the setting of the circumferential weld ultrasonic walking detection mechanism 2, the entire detection device can move flexibly on the surface of the GlS housing, and at the same time maintain a stable detection position. By using the cooperation of the swing arm 25 and the GlS housing walking lubrication component 26, it is ensured that the ultrasonic detection device can adapt to the surface of the housing with different curvatures, increasing the applicability and flexibility of the device; with the optimized design of the GlS housing walking lubrication component 26, it not only provides lubrication for the movement of the detection device, but also can effectively collect the dust and impurities around the weld seam, enabling the lubricating oil to be evenly distributed on the walking path of the GlS housing 1, reducing friction and wear, and at the same time avoiding the waste of lubricating oil; it solves the problem that the existing detection device usually affects the detection effect of the detector weld due to the impurities on the surface of the pipeline and reduces the accuracy rate of data analysis, and can ensure that during the ultrasonic detection of the GlS housing weld, the GlS housing weld can also be lubricated with oil around it, ensuring the efficient detection of the ultrasonic detection structure; it should be noted that the driving mode of this device can be manual or realized in cooperation with electric drive.

[0037] Embodiment Two, refer to the appendix Figure 1-14, on the basis of Embodiment 1, in order to realize the limited movement of the GLS housing walking lubrication assembly 26 while performing ultrasonic detection on the surface weld of the GLS housing 1: both ends of the horizontal truss 21 are fixedly connected to the inner sides of the end plates 22 respectively. Installation holes 210 are formed in the inner wall of the horizontal truss 21. The inner surface of the installation hole 210 is connected through with an installation rod 211. Both ends of the installation rod 211 are fixedly connected with U-shaped frames 212. The lower ends of the U-shaped frames 212 are fixedly connected with lining plates 213. There are two groups of U-shaped frames 212 and lining plates 213, which are symmetrically distributed about the horizontal central axis of the horizontal truss 21. The lower end of the lining plate 213 is rotatably connected with an electromagnetic adsorption roller 214, and the electromagnetic adsorption roller 214 is movably connected to the outer surface of the GLS housing 1; both upper ends of the vertical truss 23 are fixedly connected with force-bearing ring plates 232. A sleeve plate 231 is arranged at the center of the vertical truss 23. The sleeve plate 231 is integrally formed with the vertical truss 23. The inner surface of the sleeve plate 231 is fixedly connected to the central outer wall of the horizontal truss 21. T-shaped limiting grooves 230 are respectively formed in the inner walls on both sides of the vertical truss 23. The inner surface of the T-shaped limiting groove 230 is slidably installed with a movable frame 233. An ultrasonic detection probe 234 is detachably installed at the lower end of the movable frame 233;

[0038] In this embodiment, the two end plates 22 are connected by the horizontal truss 21. At this time, the horizontal truss 21 serves as a support for the vertical truss 23 and is sleeved by the sleeve plate 231. According to the size of the weld of the GLS housing 1, the distance between the two horizontally relatively distributed movable frames 233 is adjusted, and the distance between the ultrasonic detection probes 234 is adjusted synchronously. It should be noted that when the operator holds the force-bearing ring plates 232 with both hands and pushes, at this time, the entire circumferential seam ultrasonic walking detection mechanism 2 is adsorbed on the surface of the GLS housing 1 through the electromagnetic adsorption roller 214 and does not affect the circumferential seam movement of the device.

[0039] Embodiment 3, referring to the appendix Figure 1-14 , on the basis of Embodiment 2, in order to enable the GLS housing walking lubrication assembly 26 to adapt to the surfaces of housings with different curvatures: fixed sleeve plates 24 are fixedly installed on the outer surfaces of both ends of the horizontal truss 21. One end of the swing arm 25 is fixedly connected with a pin shaft. The outer surface of the pin shaft is rotatably connected to the inner walls on both sides of the fixed sleeve plate 24. The other end of the swing arm 25 is provided with a circular plate, and the circular plate and the swing arm 25 are integrally formed in a "6"-shaped plate structure; a chute 250 is formed in the inner wall of the swing arm 25. The inner surface of the chute 250 is slidably connected with a sliding block 251. The outer side of the sliding block 251 is hinged with a curved abutment spring 252. The other end of the curved abutment spring 252 is fixedly connected with a diagonal support plate 221, and the diagonal support plate 221 is fixedly installed on the end plate 22;

[0040] In this embodiment, one end of the swing arm 25 is connected to the fixed sleeve plates 24 fixedly installed at both ends of the horizontal truss 21, and the other end is connected to the GlS housing walking lubrication assembly 26 for ultrasonic detection walking. When the GlS housing walking lubrication assembly 26 walks on the GlS housing 1, as Figure 5 shown, affected by GlS housings 1 of different sizes, the two swing arms 25 move relatively to both sides, and through the mutual cooperation of the sliding block 251 and the curved contact spring 252, the jitter during the overall walking of the GlS housing walking lubrication assembly 26 can be reduced, further ensuring the accuracy of the ultrasonic detection probe 234 for ultrasonic detection of the weld seam and avoiding the situation of poor imaging effect.

[0041] Embodiment 4. Referring to the appendix Figure 1-14 , on the basis of Embodiment 3, in order to achieve auxiliary lubrication during ultrasonic detection of the weld seam of the GlS housing 1 and reduce walking wear: The GlS housing walking lubrication assembly 26 includes a central roller 261, a rolling bearing 263, a hollow oil storage roller 264, and a housing walking wheel 266. The rolling bearing 263 is arranged inside the circular plate. An arc-shaped weld contact plate 262 is fixedly connected to the outer surface of the central roller 261, and dust adsorption cotton plates 2621 are uniformly arranged on the outer surface of the arc-shaped weld contact plate 262; Connecting columns 2611 are fixedly connected to both ends of the central roller 261, and the outer surface of the connecting column 2611 is fixedly connected to one end of the hollow oil storage roller 264. The outer surface of the hollow oil storage roller 264 is rotatably connected to the inner surface of the rolling bearing 263. An oil injection plug 2641 is movably installed at one end of the hollow oil storage roller 264 away from the connecting column 2611; An oil storage cavity 2640 is opened on the central inner wall of the hollow oil storage roller 264, a thread groove 26400 is arranged on the inner wall of the oil storage cavity 2640, and an oil guide hole 26401 is penetrated and opened on the inner surface of the oil storage cavity 2640; An oil extension member is arranged between the outer ring of the hollow oil storage roller 264 and the inner ring of the housing walking wheel 266. The oil extension member includes an inner sleeve ring plate 265. The outer surface of the hollow oil storage roller 264 is fixedly connected to the inner sleeve ring plate 265 and the central inner surface of the housing walking wheel 266. An oil outlet hole 2650 is opened on the inner wall of the inner sleeve ring plate 265, and the oil outlet hole 2650 is adapted to the position of the oil guide hole 26401. An annular embedding groove is opened on the inner wall of the outer ring of the housing walking wheel 266, a strip-shaped oil overflow hole 2660 is opened on the inner wall of the annular embedding groove, and a friction embedding ring 2661 is movably sleeved on the inner side surface of the annular embedding groove; A support inclined plate 2651 is fixedly connected to the outer surface of the inner sleeve ring plate 265. There are six groups of support inclined plates 2651 and they are circularly arranged in an array about the central axis of the inner sleeve ring plate 265. One end of the support inclined plate 2651 away from the inner sleeve ring plate 265 is fixedly connected to an outer sleeve ring plate 2652, and the outer surface of the outer sleeve ring plate 2652 is movably abutted against the inner wall of the housing walking wheel 266;

[0042] In this embodiment, as Figure 7-8As shown, a rolling bearing 263 is arranged at the connection between the hollow oil storage roller 264 and the swing arm 25 to ensure the lubrication of the hollow oil storage roller 264 when driving the shell running wheel 266 to roll. By opening the oil filling plug 2641 at one end of the hollow oil storage roller 264, lubricating oil is injected into the inner cavity of the oil storage chamber 2640. The oil storage chamber 2640 serves as a storage space for lubricating oil. During the overall rolling and rotation of the hollow oil storage roller 264 and the shell running wheel 266, the lubricating oil enters the interior of the threaded groove 26400, and under the action of rotation, the lubricating oil is discharged through the adapted multiple groups of oil guide holes 26401, and with the adaptation of the oil outlet holes 2650 opened on the surface of the inner ring plate 265, the lubricating oil enters the multiple groups of separation cavities between the inner ring plate 265 and the outer ring plate 2652. It should be said that It is obvious that the supporting inclined plates 2651 are arranged in a circular array about the central axis of the inner ring plate 265. At this time, the supporting inclined plates 2651 can serve as support members for guiding the rolling of the shell running wheels 266, and enhance the walking strength of the shell running wheels 266. In addition, the lubricating oil can be guided through the inclined surface of the supporting inclined plates 2651 to facilitate better immersion in the outer ring plate 2652. In this way, when the shell running wheels 266 are in the process of continuous walking, the lubricating oil is evenly squeezed out from the strip-shaped oil-diffusing holes 2660 and fills the friction embedded ring 2661, thereby achieving the effect of smearing lubricating oil while deforming, improving the smoothness of the overall ultrasonic detection of the annular seam ultrasonic walking detection mechanism 2, and enhancing the stability of the ultrasonic detection probe 234 during ultrasonic detection; and it is worth noting that, Figure 7 As shown, one end of the hollow oil storage roller 264 is connected to the connecting column 2611, and the connecting column 2611 here supports the center roller 261. When the shell walking wheel 266 walks on the surface of the GLS shell 1, the arc-shaped weld touch plate 262 is acted upon by elasticity to continuously clean the weld of the GLS shell 1. In this way, the weld can be cleaned before the ultrasonic detection probe 234 detects, thereby preventing factors such as impurities from affecting the accuracy of the ultrasonic detection data.

[0043] Embodiment 5, refer to the attached Figure 1-14 On the basis of the fourth embodiment, in order to avoid the waste of lubricating oil: a baffle 2631 is provided on the side of the rolling bearing 263 close to the center roller 261, and the central inner surface of the baffle 2631 is rotatably connected to the outer surface of the circular plate; oil collecting grooves 26501 are provided on the inner walls at both ends of the inner ring plate 265, and the oil collecting groove 26501 includes a wide mouth and a narrow mouth, and the wide mouth and the narrow mouth are an integrally formed hollow groove structure, and the oil collecting groove 26501 is adapted to penetrate a group of oil guide holes 26401, which are used to collect excess lubricating oil to avoid waste;

[0044] In this embodiment, if Figure 8 and Figure 13-14As shown, the width of the outer sleeve ring plate 2652 is narrower than that of the inner sleeve ring plate 265 and the outer sleeve ring plate 2652. When the outer sleeve ring plate 2652 is immersed in the oil, under the continuous extrusion of the friction retaining ring 2661 when the housing traveling wheel 266 rolls, a part of the saturated oil of the outer sleeve ring plate 2652 is discharged through the strip-shaped oil-diffusing holes 2660, and a part will flow along the outer sleeve ring plate 2652. At this time, the excess oil enters the oil storage cavity 2640 again through the oil collecting groove 26501. Through the special empty groove design of the oil collecting groove 26501, it is convenient to collect the oil better, thus avoiding the waste of the remaining liquid.

[0045] The working principle and usage process of the present invention: In actual use, first, by opening the oil filling plug 2641, lubricating oil for the surface lubrication of the GlS housing 1 is filled into the two oil storage cavities 2640 respectively, and then the oil filling plug 2641 seals the hollow oil storage roller 264. Subsequently, the ultrasonic detection probe 234 is externally connected to the ultrasonic detector through a connecting wire, and the two are electrically connected. The annular seam ultrasonic walking detection mechanism 2 is adsorbed to the weld position on the surface of the GlS housing 1 through the electromagnetic adsorption roller 214. At this time, the two ultrasonic detection probes 234 are adjusted to be located on both sides of the weld respectively, so that the weld is in the center position; then, the operator holds the two force-receiving ring plates 232 with his hands and pushes the annular seam ultrasonic walking detection mechanism 2 to walk on the surface of the GlS housing 1 as a whole. At this time, affected by the GlS housing 1 of different sizes, the two swing arms 25 move relatively to both sides, and through the mutual cooperation of the sliding block 251 and the curved abutting spring 252, the jitter during the overall walking of the GlS housing traveling lubrication assembly 26 can be reduced, further ensuring the accuracy of the ultrasonic detection of the ultrasonic detection probe 234 towards the weld; at this time, the housing traveling wheel 266 and the friction retaining ring 2661 on its surface continuously contact the surface of the GlS housing 1. Due to the rotation, the lubricating oil in the inner cavity of the oil storage cavity 2640 is guided through the thread groove 26400 and discharged through a set of adapted oil guiding holes 26401. In cooperation with the adaptation of the oil outlet holes 2650 provided on the surface of the inner sleeve ring plate 265, the lubricating oil enters the multi-component separation cavity between the inner sleeve ring plate 265 and the outer sleeve ring plate 2652 at this time. The lubricating oil is guided through the inclined surface of the support inclined plate 2651, which is convenient for better immersion into the outer sleeve ring plate 2652. Thus, when the housing traveling wheel 266 is continuously walking, the lubricating oil is evenly extruded from the strip-shaped oil-diffusing holes 2660, filling the friction retaining ring 2661, so as to achieve the function of deforming and walking along the edge to apply lubricating oil, improving the smoothness of the overall ultrasonic detection of the annular seam ultrasonic walking detection mechanism 2. At the same time, when the housing traveling wheel 266 walks on the surface of the GlS housing 1, the arc-shaped weld contact plate 262 is affected by elasticity and continuously sweeps the weld of the GlS housing 1. Thus, the weld can be cleaned before the ultrasonic detection probe 234 detects, avoiding the influence of impurities and other factors on the accuracy of the ultrasonic detection data.

[0046] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasonic detection device for the weld of a GIS housing, comprising a GIS housing (1), on the surface of which there is a weld seam, characterized in that: A circumferential seam ultrasonic walking detection mechanism (2) is movably mounted on the surface of the GlS housing (1). The circumferential seam ultrasonic walking detection mechanism (2) includes a support unit and a limit walking unit. The limit walking unit is arranged on both sides of the support unit. The limit walking unit includes a fixed sleeve plate (24), a swing arm (25) and a GlS housing walking lubrication assembly (26). The support unit includes a horizontal truss (21), an end plate (22) and a vertical truss (23). A circular plate is arranged at the other end of the swing arm (25). The circular plate and the swing arm (25) are integrally formed into a "6"-shaped plate structure. The GlS housing walking lubrication assembly (26) includes a central roller (261), a rolling bearing (263), a hollow oil storage roller (264) and a housing walking wheel (266). The rolling bearing (263) is arranged inside the circular plate. An arc-shaped weld contact plate (262) is fixedly connected to the outer surface of the central roller (261). Dust adsorption cotton plates (2621) are evenly arranged on the outer surface of the arc-shaped weld contact plate (262). An oil storage cavity (2640) is formed on the inner wall of the center of the hollow oil storage roller (264). Thread grooves (26400) are arranged on the inner wall of the oil storage cavity (2640). Oil guide holes (26401) are formed through the inner surface of the oil storage cavity (2640). An oil extension member is arranged between the outer ring of the hollow oil storage roller (264) and the inner ring of the housing walking wheel (266). The oil extension member includes an inner sleeve ring plate (265). The outer surface of the hollow oil storage roller (264) is fixedly connected to the inner surface of the center of the inner sleeve ring plate (265) and the housing walking wheel (266). Oil outlet holes (2650) are formed on the inner wall of the inner sleeve ring plate (265). The oil outlet holes (2650) are adapted to the positions of the oil guide holes (26401).

2. The ultrasonic detection device for the weld of the GlS shell according to claim 1, characterized in that: Both ends of the horizontal truss (21) are fixedly connected to the inner side of the end plate (22). Mounting holes (210) are formed on the inner wall of the horizontal truss (21). Mounting rods (211) are connected through the inner surfaces of the mounting holes (210). U-shaped frames (212) are fixedly connected to both ends of the mounting rods (211). Liners (213) are fixedly connected to the lower ends of the U-shaped frames (212). Two groups of U-shaped frames (212) and liners (213) are provided and symmetrically distributed about the horizontal central axis of the horizontal truss (21). An electromagnetic adsorption roller (214) is rotatably connected to the lower end of the liner (213). The electromagnetic adsorption roller (214) is movably connected to the outer surface of the GlS housing (1).

3. The ultrasonic detection device for the weld of the GlS housing according to claim 2, characterized in that: At both upper ends of the vertical truss (23), force-bearing ring plates (232) are fixedly connected. A sleeve plate (231) is arranged at the center of the vertical truss (23). The sleeve plate (231) is integrally formed with the vertical truss (23). The inner surface of the sleeve plate (231) is fixedly connected to the central outer wall of the horizontal truss (21). T-shaped limiting grooves (230) are respectively formed on the inner walls on both sides of the vertical truss (23). An activity frame (233) is slidably installed on the inner surface of the T-shaped limiting groove (230). An ultrasonic detection probe (234) is detachably installed at the lower end of the activity frame (233).

4. A method for ultrasonic inspection of welded joints of a GIS housing according to claim 3, characterized in that: The fixed sleeve plate (24) is fixedly installed on the outer surfaces at both ends of the horizontal truss (21). One end of the swing arm (25) is fixedly connected with a pin shaft. The outer surface of the pin shaft is rotatably connected to the inner walls on both sides of the fixed sleeve plate (24).

5. The ultrasonic detection device for the weld of a GIS housing according to claim 4, characterized in that: A chute (250) is formed on the inner wall of the swing arm (25). A sliding square block (251) is slidably connected to the inner surface of the chute (250). A curved abutting spring (252) is hinged to the outer side of the sliding square block (251). The other end of the curved abutting spring (252) is fixedly connected to a diagonal support plate (221). The diagonal support plate (221) is fixedly installed on the end plate (22).

6. The ultrasonic detection device for the weld of a GIS housing according to claim 1, characterized in that: Both ends of the central roller (261) are fixedly connected with connecting columns (2611). The outer surface of the connecting column (2611) is fixedly connected to one end of the hollow oil storage roller (264). The outer surface of the hollow oil storage roller (264) is rotatably connected to the inner surface of a rolling bearing (263). An oil injection plug (2641) is movably installed at the end of the hollow oil storage roller (264) away from the connecting column (2611).

7. A welding GlS shell weld ultrasonic detection device according to claim 1, characterized in that: An annular embedding groove is formed on the inner wall of the outer ring of the housing traveling wheel (266). A strip-shaped oil overflow hole (2660) is formed on the inner wall of the annular embedding groove. A friction embedding ring (2661) is movably sleeved on the inner side surface of the annular embedding groove.

8. A welding GlS shell weld ultrasonic detection device according to claim 1, characterized in that: Supporting diagonal plates (2651) are fixedly connected to the outer surface of the inner sleeve ring plate (265). There are six groups of the supporting diagonal plates (2651) and they are circularly arrayed about the central axis of the inner sleeve ring plate (265). One end of the supporting diagonal plate (2651) away from the inner sleeve ring plate (265) is fixedly connected to an outer sleeve ring plate (2652). The outer surface of the outer sleeve ring plate (2652) is movably abutted against the inner wall of the housing traveling wheel (266).

Images