Rotating phased array ultrasonic testing device

Abstract

This utility model relates to a rotating phased array ultrasonic testing device. It includes a phased array ultrasonic probe, a support assembly, a housing assembly, and a motor. The support assembly includes a cover and a base detachably connected to define a first cavity. The phased array ultrasonic probe is received within the first cavity and is connected to the support assembly in a manner that allows for coordinated movement. The housing assembly includes a first housing and a second housing detachably connected to define a second cavity. The second cavity is configured to receive the phased array ultrasonic probe and the support assembly. The motor is fixed to the first housing, and its motor shaft is connected to the support assembly to drive the support assembly, which houses the phased array ultrasonic probe, to rotate within the housing assembly. This rotating phased array ultrasonic testing device is easy to assemble, allows for standardized operation, effectively reduces labor costs, and ensures consistent test results.

Description

Technical Field

[0001] This utility model relates to the field of nondestructive testing technology for materials, and in particular to a rotating phased array ultrasonic testing device that can be used to detect internal defects in steel castings. Background Technology

[0002] Steel castings are widely used in industrial fields such as construction machinery, heavy machinery, and energy equipment. Due to their typically thick walls, complex geometries, coarse grain structure, and uneven internal structure, steel castings may develop defects such as shrinkage cavities and hydrogen cracks. To ensure product quality, steel castings usually require inspection to identify and remove defective pieces. This inspection is typically performed non-destructively using ultrasonic technology.

[0003] Existing technologies include non-destructive testing schemes using phased array ultrasonic testing devices. However, this method requires experienced operators to manually operate the phased array ultrasonic probe and analyze the collected data. Its automation level is low, and the test results can vary significantly depending on the operator's experience. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the above-mentioned problems and / or other problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides a rotating phased array ultrasonic testing device, which includes a phased array ultrasonic probe, a support assembly, a housing assembly, and a motor. The support assembly includes a cover and a base, which are detachably connected together to define a first cavity. The first cavity is configured to receive the phased array ultrasonic probe and to connect the phased array ultrasonic probe to the support assembly in a manner that allows for coordinated movement. The housing assembly includes a first housing and a second housing, which are detachably connected together to define a second cavity. The second cavity is configured to receive the phased array ultrasonic probe and the support assembly. The motor is fixed to the first housing, and its motor shaft is connected to the support assembly to drive the support assembly and the phased array ultrasonic probe to rotate within the second cavity.

[0006] By using a rotating phased array ultrasonic probe, the detection device of this invention can scan thick-walled cast steel parts and generate 360° slices, allowing operators to screen out suspicious parts with micropores and hydrogen cracks for real-time verification and classification. This detection method does not require highly experienced operators; by simply scanning the surface of the casting, it enables more consistent inspection of large batches of large castings, significantly reducing manual inspection costs and improving the reliability of inspection results. Furthermore, the detection results of this invention can be presented in 3D and uploaded to a server for long-term storage.

[0007] According to one embodiment of the present invention, the base has a cylindrical structure and has a first opening and a second opening at its two axial ends, respectively, and the cover has a cylindrical structure and has a third opening at one axial end, wherein the base is configured to connect with the portion of the cover having the third opening at the second opening, and to allow the probe end of the phased array ultrasonic probe to extend from the first opening.

[0008] According to one embodiment of the present invention, the inner peripheral wall of the base is provided with threads for connecting the phased array ultrasonic probe at a position adjacent to the first opening.

[0009] According to one embodiment of the present invention, the outer peripheral wall of the cover is provided with an outer peripheral flange at a position adjacent to the third opening, for the axial end wall of the base to abut against.

[0010] According to one embodiment of the present invention, a notch extending axially to the third opening is provided on the outer peripheral wall of the cover body for the wiring terminal of the phased array ultrasonic probe to extend out.

[0011] According to one embodiment of the present invention, the other axial end of the cover has a top wall, and a retaining mechanism for connecting the motor shaft and the bracket assembly is provided between the top wall and the motor shaft of the motor. The retaining mechanism includes an adapter plate, a positioning pin and a spring. The adapter plate is sleeved and fixed on the motor shaft. The two ends of the positioning pin are respectively inserted into the adapter plate and the top wall. The spring is sleeved on the positioning pin and abuts against the adapter plate and the top wall.

[0012] According to one embodiment of the present invention, the retaining mechanism includes two locating pins and two springs corresponding to the two locating pins, the two locating pins being arranged opposite each other on both sides of the motor shaft in the diametrical direction.

[0013] According to one embodiment of the present invention, both the first housing and the second housing have a sleeve-shaped structure. The first housing includes a first cylindrical portion and a first fixing portion extending radially outward from the first cylindrical portion. The second housing includes a second cylindrical portion and a second fixing portion extending radially outward from the second cylindrical portion. The first fixing portion and the second fixing portion are connected together by bolts.

[0014] According to one embodiment of the present invention, the first fixing portion extends axially beyond the first cylindrical portion to define a gap between the first cylindrical portion and the second cylindrical portion for the connector of the phased array ultrasonic probe to extend out. The gap is configured to extend in a predetermined angular range in the circumferential direction to allow the connector to rotate within the predetermined angular range.

[0015] According to one embodiment of the present invention, the second cylindrical portion surrounds the outer periphery of the base so as to define a fluid flow channel for the coupling fluid to flow out together with the base, and the second cylindrical portion is provided with an inlet communicating with the fluid flow channel.

[0016] In this phased array ultrasonic testing device, the phased array ultrasonic probe is mounted in a detachable support assembly consisting of a cover and a base, and can rotate within the housing assembly using the support assembly as a support, driven by a motor. Thus, the operator only needs to hold the motor body to place the probe end of the phased array ultrasonic probe against the steel casting to be tested, and the phased array ultrasonic testing device can slide on the surface of the steel casting while the phased array ultrasonic probe rotates automatically. This standardized operation eliminates human error and allows the operator to perform various scans within a 360° range on the steel casting, including S-scan (sector), B-scan (section), C-scan (planar), or 3D imaging, to screen out defective parts and perform real-time verification and classification. Attached Figure Description

[0017] The features and advantages of this utility model will become clear from the following detailed description provided with reference to the accompanying drawings. It should be understood that the following drawings are merely schematic and not necessarily drawn to scale, and therefore should not be considered as limitations on this utility model, wherein:

[0018] Figure 1 A perspective view of a rotating phased array ultrasonic testing device according to an embodiment of the present invention is shown.

[0019] Figure 2 Show Figure 1 An exploded view of the rotating phased array ultrasonic testing device shown.

[0020] Figure 3 Show Figure 1 Bottom view of the rotating phased array ultrasonic testing device shown;

[0021] Figure 4 Show Figure 3 A cross-sectional view along line AA of the rotating phased array ultrasonic testing device shown.

[0022] Figure 5 Show Figure 3 A cross-sectional view along line BB of the rotating phased array ultrasonic testing device shown.

[0023] Figure 6 Show Figure 2 A perspective view of the cover of the rotating phased array ultrasonic testing device shown;

[0024] Figure 7 Show Figure 2 A perspective view of the base of the rotating phased array ultrasonic testing device shown.

[0025] Figure 8 Show Figure 2 An exploded view of the holding mechanism of the rotating phased array ultrasonic testing device shown.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Phased array ultrasonic probe; 11. Probe end; 12. Terminal; 2. Support assembly; 21. Cover; 211. Third opening; 212. Outer peripheral wall; 213. Top wall; 2131. Second hole; 214. Outer peripheral flange; 215. Notch; 22. Base; 221. First opening; 222. Second opening; 223. End wall; 23. First cavity; 3. Housing assembly; 31. First housing; 311. First cylindrical part; 312. First fixing part; 32. Second housing; 321. Second cylindrical part; 322. Second fixing part; 323. Inlet; 33. Second cavity; 4. Motor; 41. Motor shaft; 5. Holding mechanism; 51. Adapter plate; 511. First hole; 52. Positioning pin; 53. Spring; 6. Fluid flow channel; 7. Gap. Detailed Implementation

[0028] Embodiments of the present invention are described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth to enable those skilled in the art to more fully understand and implement the present invention. However, it will be apparent to those skilled in the art that implementations of the present invention may not include some of these specific details. Furthermore, it should be understood that the present invention is not limited to the specific embodiments described. Rather, the present invention can be conceived to be implemented with any combination of the features and elements described below, regardless of whether they relate to different embodiments. Therefore, the following aspects, features, embodiments, and advantages are for illustrative purposes only and should not be construed as elements or limitations of the claims unless expressly set forth in the claims.

[0029] The terms such as “first” and “second” are used below to describe the elements of this application. These terms are used only to distinguish the individual elements and not to limit the nature, order, or number of these elements. The terms “comprising” and “having” are used to indicate an open-ended inclusion and mean that there may be additional elements / components besides those listed.

[0030] The rotating phased array ultrasonic testing device of this invention can be configured as a small testing device that can be used by hand by an operator.

[0031] like Figures 1 to 3 As shown, the exemplary phased array ultrasonic testing device of this utility model may include a phased array ultrasonic probe 1, a support assembly 2, a housing assembly 3, and a motor 4. The phased array ultrasonic probe 1 can be installed in the support assembly 2, which can be rotatably mounted—especially suspended—within the housing assembly 3. The motor 4 can be mounted on the housing assembly 3 and can be connected to the support assembly 2 via its motor shaft 41, so as to drive the support assembly 2 and the phased array ultrasonic probe 1 to rotate within the housing assembly 3, thereby enabling a 360° scan of the steel casting to screen out parts with defects such as micropores and hydrogen cracks.

[0032] Continue to refer to Figures 1 to 3 In the illustrated embodiment, the phased array ultrasonic probe 1 is generally cylindrical, with one axial end being a probe end 11 for transmitting and receiving ultrasonic waves, and a wiring terminal 12 extending radially outward for signal transmission located near the other axial end. The outer circumferential surface of the phased array ultrasonic probe 1 near the probe end 11 is typically provided with threads for mounting the phased array ultrasonic probe 1.

[0033] Figure 4 and Figure 5 The rotating phased array ultrasonic testing device of this embodiment is shown along the [path], [details]. Figure 3 A cross-sectional view of lines AA and BB in the diagram. (See attached image.) Figure 2 , Figure 4 and Figure 5 As shown, the support assembly 2 may include two separate parts: a cover 21 and a base 22. The cover 21 and base 22 can be detachably connected together, thereby jointly defining a first cavity 23. This first cavity 23 can be configured to receive the phased array ultrasound probe 1 and to allow the phased array ultrasound probe 1 to be connected to the support assembly 2 in a mutually movable manner. For example, threads can be provided on the inner peripheral wall of the base 22 to connect with threads near the probe end 11 of the phased array ultrasound probe 1. Alternatively, in other embodiments, the phased array ultrasound probe 1 can be fixed to the cover 21 or the base 22 by adhesive.

[0034] See also Figure 2 and Figure 4-5 The housing assembly 3 may include two separate parts: a first housing 31 and a second housing 32. The first housing 31 and the second housing 32 can be detachably connected together, thereby jointly defining a second cavity 33. A support assembly 2 with a phased array ultrasonic probe 1 can be installed within the second cavity 33 and is rotatable relative to the housing assembly 3. Advantageously, by changing the support assembly 2 according to the size of the phased array ultrasonic probe 1, different models of phased array ultrasonic probes 1 can be adaptively installed on the housing assembly 3, thereby enabling ultrasonic testing of steel castings of different specifications.

[0035] Motor 4 is, for example, a servo motor, and may include a motor shaft 41 and a motor body. The motor body of motor 4 may be fixed to housing assembly 3, and in particular to the first housing 31. The motor shaft 41 of motor 4 may extend into the second cavity 33 and be connected to the support assembly 2 so as to drive the support assembly 2 and the phased array ultrasonic probe 1 to rotate within the second cavity 33.

[0036] Figure 6 and Figure 7 The specific structures of the cover 21 and base 22 of the exemplary support assembly 2 are shown respectively. Figure 2 and Figure 5-7 As shown in the illustrated embodiment, both the cover 21 and the base 22 have a cylindrical structure. The two ends of the base 22 are through, that is, the two ends of the base 22 have a first opening 221 and a second opening 222 respectively. The axial end of the cover 21 intended to be connected to the base 22 has a third opening 211.

[0037] Advantageously, the inner diameter of the base 22 is larger than the outer diameter of the cover 21, thereby allowing the cover 21 and the base 22 to be connected by inserting the axial end portion of the cover 21 with the third opening 211 into the axial end portion of the base 22 with the second opening 222. Here, the outer diameter of the cover 21 and the inner diameter of the base 22 can be designed to form a tight fit. Alternatively, matching threads can be provided on corresponding portions of the outer peripheral wall of the cover 21 and the inner peripheral wall of the base 22, allowing them to be detachably connected by the threaded engagement. It is also conceivable to provide through holes in the wall of the base 22. Figure 7 (as can be seen in the image) so that the base 22 and the cover 21 can be secured together by inserting fastening screws into the through holes.

[0038] See especially Figure 4 and Figure 5 The axial dimensions of the cover 21 and the base 22 can be designed such that, when the phased array ultrasonic probe 1 is installed in the first cavity 23, the probe end 11 of the phased array ultrasonic probe 1 can be extended from the bottom surface of the base 22. Figure 1 The middle surface extends towards the lower right, which is the surface facing the steel casting being inspected during use.

[0039] See also Figure 4 and Figure 5 Near the first opening 221, the inner peripheral wall of the base 22 may be provided with an internal thread to engage with the thread provided on the outer peripheral surface of the phased array ultrasonic probe 1 as described above, thereby fixing the phased array ultrasonic probe 1 and the base 22 together in a manner that allows them to move together.

[0040] See now Figure 2 , Figure 5 and Figure 6 Advantageously, the other axial end of the cover 21 opposite the third opening 211 can have a top wall 213, on which a structure for mounting the bracket assembly 2 to the motor shaft 41 of the motor 4 can be provided. Also advantageously, an outer peripheral flange 214 can be formed on the outer peripheral wall 212 of the cover 21, which can be close to the third opening 211 so as to serve as a limiting stop or mounting seat for the base 22. Specifically, in the assembled state, the axial end wall 223 of the base 22 can abut against the outer peripheral flange 214. It is also conceivable to have axial through holes or threaded holes in the outer peripheral flange 214, and corresponding threaded holes in the axial end wall 223 of the base 22, so that the base 22 and the cover 21 can be connected together by bolts passing through these through holes or threaded holes.

[0041] like Figure 2 and Figure 5-6As shown, a notch 215 may also be provided on the outer peripheral wall 212 of the cover 21. The notch 215 extends axially from the axial end wall where the third opening 211 of the cover 21 is located toward the top wall 213 of the cover 21, thereby allowing the wiring terminal 12 of the phased array ultrasonic probe 1 to extend radially relative to the support assembly 2.

[0042] Advantageously, such as Figure 2 , Figure 5 and Figure 8 As shown, the rotary phased array ultrasonic testing device of this embodiment may further include a retaining mechanism 5 for connecting the motor 4 and the support assembly 2. This retaining mechanism 5 may be disposed between the top wall 213 of the cover 21 and the motor shaft 41 of the motor 4, and may include an adapter plate 51, a positioning pin 52, and a spring 53. The adapter plate 51 may be sleeved and fixed to the motor shaft 41. One end of the positioning pin 52 is inserted into the first hole 511 of the adapter plate 51, and the other end is inserted into the second hole 2131 on the top wall 213. The spring 53 is sleeved on the positioning pin 52, with one end abutting against the adapter plate 51 and the other end abutting against the top wall 213. Thus, the support assembly 2 can be suspended in the housing assembly 3 and can generate a small displacement in the axial direction, thereby ensuring that the probe end 11 of the phased array ultrasonic probe 1 inside it is in contact with the surface of the steel casting.

[0043] In the embodiment shown, the retaining mechanism 5 may include two locating pins 52 and two springs 53 respectively sleeved thereon. The two locating pins 52 and their springs 53 may be arranged opposite each other on both sides of the motor shaft 41 in the diametrical direction. This makes the force on the support assembly 2 with the phased array ultrasonic probe 1 more balanced. It can be understood that the first hole 511 on the adapter plate 51 may be constructed as an elongated hole to give each locating pin 51 the freedom to move along the diametrical direction of the adapter plate 51, thereby ensuring that the phased array ultrasonic probe 1 coincides with the axial centerline of the motor shaft 41.

[0044] return Figure 2 , Figure 4 and Figure 5 According to the embodiment shown in the figure, the first housing 31 may have a sleeve-like structure and may include a first cylindrical portion 311 and a first fixing portion 312. The first cylindrical portion 311 may be used to define a portion of the second cavity 33. The first fixing portion 312 may extend radially outward from the first cylindrical portion 311 and is provided with a plurality of axially extending first mounting holes ( Figure 5(As can be seen in the image). The second housing 32 may also have a sleeve-like structure and may include a second cylindrical portion 321 and a second fixing portion 322. The second cylindrical portion 321 may be used to define another part of the second cavity 33. The second fixing portion 322 may extend radially outward from the second cylindrical portion 321 and is provided with a plurality of axially extending second mounting holes (…). Figure 5 (As can be seen in the image). In this way, the first fixing part 312 and the second fixing part 322 can be connected together by means of bolts passing through the first mounting hole and the second mounting hole, thereby connecting the first housing 31 and the second housing 32 into a complete outer shell.

[0045] Preferably, such as Figure 2 and Figure 5 As shown, the first fixing part 312 can be configured to extend beyond the first cylindrical part 311 in the axial direction toward the second fixing part 311. Thus, when the first fixing part 312 and the second fixing part 322 are connected, a gap 7 can be defined between the first cylindrical part 311 and the second cylindrical part 321 (see...). Figure 4 and Figure 5 The gap 7 can be configured to extend in the circumferential direction within a predetermined angular range—particularly approximately 180° or greater—to allow the terminals 12 of the phased array ultrasound probe 1 to extend and to allow it to rotate within the predetermined angular range. It should be noted that the notch 215 on the cover 21 of the support assembly 2 is displaced within the circumferential angular range of the gap 7 in the assembled state.

[0046] refer to Figure 4 The second cylindrical portion 321 can surround the outer periphery of the base 22 and, together with the base 22, define the liquid flow channel 6. This liquid flow channel 6 can surround the probe end 11 of the phased array ultrasonic probe 1 extending from the base 22. The second cylindrical portion 321 can be provided with an inlet 323 communicating with the liquid flow channel 6. The inlet 323 can be located in an inclined protrusion extending radially outward relative to the second cylindrical portion 321. In this way, the coupling fluid can enter the liquid flow channel 6 through the inlet 323 and fill the space between the probe end 11 of the phased array ultrasonic probe 1 and the steel casting, thereby improving the efficiency of detection.

[0047] Industrial applicability

[0048] The rotating phased array ultrasonic testing device of this invention is particularly suitable for ultrasonic testing of internal defects in steel castings with coarse grains and strong scattering, in order to detect shrinkage cavities and hydrogen cracks. However, it should be understood that the rotating phased array ultrasonic testing device of this invention can also be used for other components that require ultrasonic testing, especially metal components.

[0049] by Figures 1 to 8Taking the illustrated embodiment as an example, when assembling the rotary phased array ultrasonic testing device, the phased array ultrasonic probe 1 can be screwed onto the base 22 first, so that the probe end 11 of the phased array ultrasonic probe 1 protrudes slightly from the first opening 221 of the base 22. Then, the cover 21 is inserted from the other end of the phased array ultrasonic probe 1 away from the probe end 111, so that the wiring terminal 12 of the phased array ultrasonic probe 1 protrudes from the notch 215. The cover 21 is fastened to the base 22, so that one end of the cover 21 is inserted into the base 22 until the end wall 223 of the base 22 abuts against the outer peripheral flange 214 of the cover 21. At this time, the cover 21 and the base 22 can be fixed together by bolts. On the other hand, the adapter plate 51 is installed on the motor shaft 41 of the motor 4, and the first housing 31 is fixed to the motor body of the motor 4 by bolts. Insert the positioning pins 52 into the second hole 2131 of the top wall 213 of the cover 21, and install springs 53 on each positioning pin 52 so that one end of the spring 53 rests on the top wall 213. Place the assembly formed by the phased array ultrasonic probe 1, the bracket assembly 2, the positioning pins 52, and the springs 53 into the first housing 31 and connect it to the adapter plate 51 on the motor shaft 41. Specifically, insert the other end of the positioning pin 52 into the first hole 511 of the adapter plate 51, and make the other end of the spring 53 on it abut against the adapter plate 51, in particular, preload the spring 53 by slightly compressing it. Finally, slide the second housing 32 into the bracket assembly 2 from the side away from the motor 4, and fix the second housing 32 to the first housing 31 with bolts, thereby completing the assembly of the rotary phased array ultrasonic detection device of this embodiment.

[0050] This utility model discloses a rotary phased array ultrasonic testing device, comprising a detachable support assembly 2 and a detachable housing assembly 3. The support assembly 2 can accommodate the phased array ultrasonic probe 1 and can be installed in the housing assembly 3, thereby forming a rotating support for the phased array ultrasonic probe 1. Such a phased array ultrasonic testing device is easy to assemble and convenient for operators. In use, the operator only needs to hold the motor body of the hand motor 4 to place the probe end 11 of the phased array ultrasonic probe 1 against the steel casting to be tested. Standardized operations can be used to scan and test the steel casting, eliminating human error, reducing the experience requirements of the operator, thereby lowering labor costs, and ensuring the consistency and reliability of the test results.

[0051] Various modifications and variations can be made to the embodiments disclosed above without departing from the scope or spirit of this invention. Other embodiments of this invention will be apparent to those skilled in the art based on the practice of this invention disclosed in this specification. This specification and the examples disclosed herein should be considered illustrative only, and the true scope of this invention is defined by the appended claims and their equivalents.

Claims

1. A rotary phased array ultrasonic testing device characterized in that it include: Phased array ultrasonic probe (1); The support assembly (2) includes a cover (21) and a base (22) which are detachably connected together to define a first cavity (23) configured to receive the phased array ultrasound probe (1) and to connect the phased array ultrasound probe (1) to the support assembly (2) in a co-moving manner. The housing assembly (3) includes a first housing (31) and a second housing (32), the first housing (31) and the second housing (32) being detachably connected together to jointly define a second cavity (33), the second cavity (33) being configured to receive the phased array ultrasound probe (1) and the support assembly (2); and The motor (4) is fixed to the first housing (31), and the motor shaft (41) of the motor (4) is connected to the bracket assembly (2) so as to drive the bracket assembly (2) and the phased array ultrasonic probe (1) to rotate in the second cavity (33).

2. The rotating phased array ultrasonic testing device according to claim 1, characterized in that, The base (22) has a cylindrical structure and has a first opening (221) and a second opening (222) at its two axial ends, respectively. The cover (21) has a cylindrical structure and has a third opening (211) at one of its axial ends. The base (22) is configured to connect with the portion of the cover (21) having the third opening (211) at the second opening (222) and allow the probe end of the phased array ultrasonic probe (1) to extend from the first opening (221).

3. The rotating phased array ultrasonic testing device according to claim 2, characterized in that, The inner peripheral wall of the base (22) is provided with threads at the location adjacent to the first opening (221) for connecting the phased array ultrasonic probe (1).

4. The rotating phased array ultrasonic testing device according to claim 2 or 3, characterized in that, The outer peripheral wall (212) of the cover (21) is provided with an outer peripheral flange (214) at a position adjacent to the third opening (211) for abutting against the axial end wall (223) of the base (22).

5. The rotating phased array ultrasonic testing device according to claim 4, characterized in that, The outer peripheral wall (212) of the cover (21) has a notch (215) extending axially to the third opening (211) for the wiring terminal (12) of the phased array ultrasonic probe (1) to extend out.

6. The rotating phased array ultrasonic testing device according to claim 4, characterized in that, The other axial end of the cover (21) has a top wall (213). A retaining mechanism (5) for connecting the motor shaft (41) and the bracket assembly (2) is provided between the top wall (213) and the motor shaft (41) of the motor (4). The retaining mechanism (5) includes a transition plate (51), a positioning pin (52) and a spring (53). The transition plate (51) is sleeved and fixed on the motor shaft (41). The two ends of the positioning pin (52) are respectively inserted into the transition plate (51) and the top wall (213). The spring (53) is sleeved on the positioning pin (52) and abuts against the transition plate (51) and the top wall (213).

7. The rotating phased array ultrasonic testing device according to claim 6, characterized in that, The retaining mechanism (5) includes two locating pins (52) and two springs (53) corresponding to the two locating pins (52), the two locating pins (52) being arranged opposite each other on both sides of the motor shaft (41) in the diametrical direction.

8. The rotating phased array ultrasonic testing device according to claim 4, characterized in that, Both the first housing (31) and the second housing (32) have a sleeve-shaped structure. The first housing (31) includes a first cylindrical part (311) and a first fixing part (312) extending radially outward from the first cylindrical part (311). The second housing (32) includes a second cylindrical part (321) and a second fixing part (322) extending radially outward from the second cylindrical part (321). The first fixing part (312) and the second fixing part (322) are connected together by bolts.

9. The rotating phased array ultrasonic testing device according to claim 8, characterized in that, The first fixing portion (312) extends axially beyond the first cylindrical portion (311) to define a gap (7) between the first cylindrical portion (311) and the second cylindrical portion (321) for the terminal (12) of the phased array ultrasonic probe (1) to extend out. The gap (7) is configured to extend in a predetermined angular range in the circumferential direction to allow the terminal (12) to rotate within the predetermined angular range.

10. The rotating phased array ultrasonic testing device according to claim 8, characterized in that, The second cylindrical portion (321) surrounds the outer periphery of the base (22) to define a fluid flow channel (6) for the coupling fluid to flow out together with the base (22), and the second cylindrical portion (321) is provided with an inlet (323) communicating with the fluid flow channel (6).

Images