Fully immersion ultrasonic flaw detection equipment and method for large annular workpieces

Abstract

This invention discloses a large-scale, fully immersed ultrasonic flaw detection device for a ring-shaped workpiece, comprising a housing for containing water and the ring-shaped workpiece, a moving assembly arranged within the housing for supporting the ring-shaped workpiece and driving it to move radially or rotate circumferentially, a lifting assembly arranged within the housing for supporting the ring-shaped workpiece and driving it to move vertically downward to place it on the moving assembly or driving it to move vertically upward to remove it, and a detection assembly arranged within the housing for moving radially along the ring-shaped workpiece to perform flaw detection on its surface. Multiple detection assemblies are provided and are arranged at intervals along the circumference of the ring-shaped workpiece within the housing.

Description

Technical Field

[0001] This invention relates to the field of ultrasonic nondestructive testing technology, and in particular, to a full-water immersion ultrasonic flaw detection device for large annular workpieces. Furthermore, this invention also relates to a full-water immersion ultrasonic flaw detection method for large annular workpieces using the aforementioned full-water immersion ultrasonic flaw detection device. Background Technology

[0002] Ring-shaped workpieces are widely used in the engineering machinery industry. Rolling is one of the main processing methods for manufacturing ring-shaped workpieces. During the rolling process, various types of defects are easily generated inside the ring-shaped workpiece. When the defect size exceeds the standard, the performance of the ring-shaped workpiece will be greatly affected, and there will be safety hazards. Therefore, ultrasonic flaw detection equipment is often used to detect internal defects of ring-shaped workpieces.

[0003] Existing testing equipment typically clamps and fixes the ring-shaped workpiece on a rotating worktable to allow movement of the workpiece. Then, a probe is mounted on a moving or fixed gantry bridge to perform a helical scan along the surface of the ring-shaped workpiece, achieving automatic axial and radial detection. However, this method has the following drawbacks for ultrasonic testing of large ring-shaped workpieces: because the ring-shaped workpiece and the rotating worktable are relatively stationary, the probe cannot scan the clamping position, requiring two separate clamping operations to scan the entire cross-section of the ring-shaped workpiece, making the testing operation cumbersome and inefficient. Furthermore, for ultra-large diameter workpieces, a large-diameter rotating worktable is required, resulting in high costs. Additionally, the gantry bridge cannot accommodate multi-point testing devices, further reducing testing efficiency. Summary of the Invention

[0004] This invention provides a water immersion ultrasonic flaw detection device and method for large ring-shaped workpieces, to solve the technical problems of low detection efficiency and high cost of existing ultrasonic flaw detection for large ring-shaped workpieces.

[0005] According to one aspect of the present invention, a large-scale ring-shaped workpiece immersion ultrasonic flaw detection device is provided, comprising a housing for containing water and the ring-shaped workpiece, a moving assembly disposed within the housing for supporting the ring-shaped workpiece and driving the ring-shaped workpiece to move radially or to rotate the ring-shaped workpiece circumferentially, a lifting assembly disposed within the housing for supporting the ring-shaped workpiece and driving the ring-shaped workpiece to move vertically downward to place it on the moving assembly or to move the ring-shaped workpiece vertically upward to remove the ring-shaped workpiece, and a detection assembly disposed within the housing for moving radially along the ring-shaped workpiece to perform flaw detection on the surface of the ring-shaped workpiece, wherein multiple detection assemblies are provided and the multiple detection assemblies are arranged at intervals along the circumference of the ring-shaped workpiece within the housing.

[0006] As a further improvement to the above technical solution:

[0007] Furthermore, the moving assembly includes a moving track disposed within the housing, a radial moving assembly movably disposed on the moving track for sliding along the moving track to drive the annular workpiece to move radially, and a circumferential moving assembly disposed on the radial moving assembly for supporting the annular workpiece and driving the annular workpiece to rotate circumferentially.

[0008] Furthermore, the moving track includes a long track, a first short track arranged on the first side of the middle of the long track, and a second short track arranged on the second side of the middle of the long track. The radial moving group includes four radial moving parts, of which two radial moving parts are arranged at opposite ends of the long track, and the other two radial moving parts are arranged on the first short track and the second short track, respectively. The circumferential moving group includes four circumferential moving parts, which are arranged on the radial moving parts. The four circumferential moving parts correspond one-to-one with the four radial moving parts.

[0009] Furthermore, the radial moving member includes a moving carriage slidably arranged on the moving track and connected to the circumferential moving member, a moving drive mechanism with its output end connected to the moving carriage, and a guide wheel rotatably arranged on the moving carriage for abutting against the annular workpiece radially along the annular workpiece.

[0010] Furthermore, the circumferential moving component includes a rotary drum rotatably mounted on a traveling vehicle for supporting the annular workpiece and rotatable along the circumference of the annular workpiece, and a rotary drive mechanism fixedly mounted on the traveling vehicle with its output end connected to the rotary drum.

[0011] Furthermore, the inspection assembly includes a movable support disposed within the housing for radial movement along the annular workpiece, and a flaw detection component movably disposed on the movable support for performing flaw detection on the surface of the annular workpiece.

[0012] Furthermore, the movable support includes a detection track arranged in the housing along the radial direction of the annular workpiece, a support frame movably arranged on the detection track, a detection drive mechanism with its output end connected to the support frame, and a mounting base arranged on the top of the support frame and connected to the flaw detection workpiece.

[0013] Furthermore, the flaw detection component includes a robotic arm movably mounted on a mounting base, a flaw detection probe mounted on the free end of the robotic arm, and a data transceiver mounted on the robotic arm and electrically connected to the flaw detection probe.

[0014] Furthermore, the lifting assembly includes multiple lifting platforms, which are arranged at circumferential intervals within the housing along the annular workpiece.

[0015] According to another aspect of the present invention, a method for full immersion ultrasonic testing of large annular workpieces is also provided, which employs the aforementioned full immersion ultrasonic testing equipment for large annular workpieces, specifically including the following steps: S1, hoisting the annular workpiece onto a lifting mechanism, the lifting mechanism driving the annular workpiece to move vertically downwards to place it on a moving component; S2, the moving component supporting the annular workpiece and driving the annular workpiece to move radially, so that the annular workpiece is positioned in the center of the receiving shell, achieving the centering and positioning of the annular workpiece; S3, determining whether the water level inside the receiving shell has reached a preset height, if the water level inside the receiving shell has not reached the preset height, pumping water into the receiving shell until the water level inside the receiving shell reaches the preset height, and then pumping water along the annular workpiece... A radially moving detection component is used to perform flaw detection on the surface of the annular workpiece after the detection component reaches the detection position. If the water level inside the housing reaches a preset height, the detection component is moved radially along the annular workpiece to perform flaw detection on the surface of the annular workpiece after the detection component reaches the detection position. During the flaw detection process, the rotating component rotates the annular workpiece circumferentially. S4: After the detection is completed, the lifting mechanism drives the annular workpiece to move vertically upward to unload the annular workpiece. Then it is determined whether there are any annular workpieces that have not been flaw detected. If there are no annular workpieces that have not been flaw detected, the water inside the housing is pumped out to purify the housing. If there are any annular workpieces that have not been flaw detected, steps S1-S4 are repeated.

[0016] The present invention has the following beneficial effects:

[0017] This invention relates to a large-scale, fully immersive ultrasonic flaw detection device for ring-shaped workpieces. The device utilizes a housing to hold water and the ring-shaped workpiece for full immersion ultrasonic flaw detection. A lifting assembly vertically raises and lowers the ring-shaped workpiece to place or remove it. A moving assembly supports the ring-shaped workpiece and moves it radially. A detection assembly then moves radially along the workpiece to perform flaw detection on its surface. This achieves centering and detection of the ring-shaped workpiece, ensuring detection accuracy, reducing detection difficulty, and applicability to ring-shaped workpieces of different diameters, thus improving its versatility. Furthermore, the moving assembly rotates the ring-shaped workpiece circumferentially to change its shape. The supported parts on the workpiece ensure that the support of the moving component does not interfere with the detection component, simplifying the detection operation and improving detection efficiency. At the same time, it eliminates the need for a large-diameter rotary table, reducing costs. Finally, multiple detection components enable multi-point detection of the workpiece, further improving detection efficiency. This solution achieves flaw detection of ring-shaped workpieces through the coordinated operation of the housing, moving component, lifting component, and detection component. Compared with existing technologies, it eliminates the need for multiple clamping of the ring-shaped workpiece, simplifies the detection operation, achieves multi-point detection, has high detection efficiency, eliminates the need for a large-diameter rotary table, has low detection costs, and is highly applicable, making it suitable for widespread promotion and application.

[0018] In addition to the objectives, features, and advantages described above, the present invention has other objectives, features, and advantages. The invention will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention;

[0021] Figure 2 This is a partial structural schematic diagram of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention;

[0022] Figure 3 This is a partial structural schematic diagram of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention;

[0023] Figure 4 This is a partial structural schematic diagram of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention;

[0024] Figure 5 This is a partial structural schematic diagram of a large-scale ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention.

[0025] Legend:

[0026] 100. Housing; 200. Moving assembly; 210. Moving track; 211. Long track; 212. First short track; 213. Second short track; 220. Radial moving assembly; 221. Moving vehicle; 222. Moving drive mechanism; 223. Support wheel; 230. Circumferential moving assembly; 231. Rotary drum; 232. Rotary drive mechanism; 300. Lifting assembly; 400. Detection assembly; 410. Moving support; 411. Detection track; 412. Support frame; 413. Mounting base; 420. Flaw detection component; 421. Robotic arm; 422. Flaw detection probe; 423. Data transceiver. Detailed Implementation

[0027] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0028] Figure 1 This is a schematic diagram of the structure of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention; Figure 2This is a partial structural schematic diagram of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention; Figure 3 This is a partial structural schematic diagram of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention; Figure 4 This is a partial structural schematic diagram of a large ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention; Figure 5 This is a partial structural schematic diagram of a large-scale ring-shaped workpiece fully immersed ultrasonic flaw detection device according to a preferred embodiment of the present invention.

[0029] like Figure 1 and Figure 2As shown, the large-scale ring-shaped workpiece immersion ultrasonic flaw detection equipment of this embodiment includes a housing 100 for containing water and the ring-shaped workpiece, a moving component 200 arranged in the housing 100 for supporting the ring-shaped workpiece and driving the ring-shaped workpiece to move radially or rotate circumferentially, a lifting component 300 arranged in the housing 100 for supporting the ring-shaped workpiece and driving the ring-shaped workpiece to move vertically downward to place it on the moving component 200 or driving the ring-shaped workpiece to move vertically upward to unload the ring-shaped workpiece, and a detection component 400 arranged in the housing 100 for moving radially along the ring-shaped workpiece to perform flaw detection on the surface of the ring-shaped workpiece. Multiple detection components 400 are provided, and multiple detection components 400 are arranged at intervals along the circumference of the ring-shaped workpiece in the housing 100. Specifically, the large-scale ring-shaped workpiece full-water immersion ultrasonic flaw detection equipment of the present invention uses a housing 100 to hold water and a ring-shaped workpiece for full-water immersion ultrasonic flaw detection. A lifting assembly 300 drives the ring-shaped workpiece vertically up and down to place or remove it. A moving assembly 200 supports the ring-shaped workpiece and drives it to move radially. A detection assembly 400 moves radially along the ring-shaped workpiece to perform flaw detection on its surface, achieving centering and detection of the ring-shaped workpiece, ensuring detection accuracy, reducing detection difficulty, and applicability to the detection of ring-shaped workpieces of different diameters, thus improving applicability. Furthermore, the moving assembly 200 drives the ring-shaped workpiece to rotate circumferentially to change its position. The supported portion of the moving component 200 ensures that its support does not interfere with the detection component 400's detection, simplifying the detection operation and improving efficiency. It also eliminates the need for a large-diameter rotary table, reducing costs. Finally, multiple detection components 400 enable multi-point detection of the workpiece, further improving efficiency. This solution achieves flaw detection of ring-shaped workpieces through the coordinated operation of the housing 100, moving component 200, lifting component 300, and detection component 400. Compared to existing technologies, it eliminates the need for multiple clamping of the ring-shaped workpiece, simplifying the detection operation. It also achieves multi-point detection with high efficiency, eliminates the need for a large-diameter rotary table, reduces detection costs, and has strong applicability, making it suitable for widespread promotion and application. Optionally, the large ring-shaped workpiece immersion ultrasonic flaw detection equipment also includes a control component, which is electrically connected to the detection component 400, moving component 200, and lifting component 300 to achieve coordinated control and data processing between the components. Optionally, the control component includes a computer and an electronic control console.

[0030] like Figure 2 and Figure 3As shown, in this embodiment, the moving component 200 includes a moving track 210 disposed within the housing 100, a radial moving assembly 220 movably disposed on the moving track 210 for sliding along the moving track 210 to drive the annular workpiece radially, and a circumferential moving assembly 230 disposed on the radial moving assembly 220 for supporting the annular workpiece and driving the annular workpiece to rotate circumferentially. Specifically, after the circumferential moving assembly 230 supports the annular workpiece, the radial moving assembly 220 slides along the moving track 210 to drive the annular workpiece radially, thereby achieving the centering and positioning of the radial component. During the detection process, the circumferential moving assembly 230 drives the annular workpiece to rotate circumferentially, thereby changing the supported portion on the annular workpiece, so that the support of the moving component 200 does not interfere with the detection of the detection component 400.

[0031] like Figure 2 and Figure 3 As shown, in this embodiment, the moving track 210 includes a long track 211, a first short track 212 arranged on the first side of the middle of the long track 211, and a second short track 213 arranged on the second side of the middle of the long track 211. The radial moving group 220 includes four radial moving members, of which two radial moving members are respectively arranged at opposite ends of the long track 211, and the other two radial moving members are respectively arranged on the first short track 212 and the second short track 213. The circumferential moving group 230 includes four circumferential moving members, which are arranged on the radial moving members. The four circumferential moving members are arranged in a one-to-one correspondence with the four radial moving members. Specifically, the moving track 210 consists of a long track 211, a first short track 212, and a second short track 213, so that the moving track 210 is arranged in a cross shape and centrally located within the housing 100. Then, the annular workpiece is moved radially synchronously by four radial moving parts to achieve four-point centering and positioning, ensuring positioning accuracy and fixing the center point position of the annular workpiece. This simplifies the control of the detection component 400. The annular workpiece is rotated circumferentially by four circumferential moving parts to ensure the stability of the circumferential rotation of the annular workpiece.

[0032] like Figure 3As shown, in this embodiment, the radial moving member includes a moving carriage 221 slidably arranged on the moving track 210 and connected to the circumferential moving member, a moving drive mechanism 222 with its output end connected to the moving carriage 221, and a guide wheel 223 rotatably arranged on the moving carriage 221 for abutting against the annular workpiece radially. Specifically, the moving drive mechanism 222 increases the working power to the moving carriage 221, causing the moving carriage 221 to move along the moving track 210. The guide wheel 223, acting as a guide wheel, drives the annular workpiece to move radially. When the circumferential moving member drives the annular workpiece to rotate circumferentially, the guide wheel 223 rotates synchronously to reduce friction and ensure the stability of the annular workpiece's circumferential rotation. Optionally, the moving drive mechanism 222 includes a hydraulic motor and a drive gear arranged on the moving carriage 221 and connected to the output end of the hydraulic motor.

[0033] like Figure 3 As shown, in this embodiment, the circumferential moving component includes a rotary drum 231 rotatably mounted on a traveling vehicle for supporting the annular workpiece and capable of rotating circumferentially along the workpiece, and a rotary drive mechanism 232 fixedly mounted on the traveling vehicle with its output end connected to the rotary drum 231. Specifically, by placing the annular workpiece on the rotary drum 231 and then driving the rotary drum 231 to rotate via the rotary drive mechanism 232, the annular workpiece is rotated circumferentially. Optionally, the rotary drive mechanism 232 is a hydraulic motor.

[0034] like Figure 1 As shown, in this embodiment, the detection assembly 400 includes a movable support 410 disposed within the housing 100 for radial movement along the annular workpiece, and a flaw detection element 420 movably disposed on the movable support 410 for performing flaw detection on the surface of the annular workpiece. Specifically, by moving the movable support 410 radially along the annular workpiece, the flaw detection element 420 is moved to the detection position, thereby enabling flaw detection on the surface of the annular workpiece.

[0035] like Figure 4 As shown, in this embodiment, the movable support 410 includes a detection track 411 arranged radially within the housing 100 along the annular workpiece, a support frame 412 movably arranged on the detection track 411, a detection drive mechanism with its output end connected to the support frame 412, and a mounting base 413 arranged on the top of the support frame 412 and connected to the flaw detection piece 420. Specifically, the detection drive mechanism drives the support frame 412 to move along the detection track 411, thereby moving the flaw detection piece 420 on the mounting base 413 to the detection position. Optionally, the detection track 411 is arranged on opposite sides of the movable track 210 to achieve unidirectional movement, facilitating coordinated control by the control components. Optionally, the detection drive mechanism includes a servo motor and a reducer.

[0036] like Figure 5 As shown, in this embodiment, the flaw detection component 420 includes a robotic arm 421 movably mounted on a mounting base 413, a flaw detection probe 422 mounted on the free end of the robotic arm 421, and a data transceiver 423 mounted on the robotic arm 421 and electrically connected to the flaw detection probe 422. Specifically, by moving the robotic arm 421 relative to the mounting base 413, the flaw detection probe 422 is aligned with different points in the radial direction of the annular workpiece to achieve flaw detection and transmit detection data. The data transceiver 423 then receives and sends the detection data for centralized processing. Optionally, multiple robotic arms 421 are mounted on the mounting base 413, with the robotic arms 421, flaw detection probes 422, and data transceivers 423 arranged in a one-to-one correspondence to improve detection efficiency through simultaneous multi-point detection.

[0037] like Figure 1 As shown, in this embodiment, the lifting assembly 300 includes multiple lifting platforms, which are arranged at intervals along the circumference of the annular workpiece within the housing 100. Specifically, by simultaneously lifting and lowering the multiple lifting platforms, the annular workpiece can be vertically lifted and lowered, allowing it to be placed on the moving assembly 200 or moved out of the water for easy removal. During the inspection process, the multiple lifting platforms can be raised and lowered to different heights to tilt the annular workpiece, thereby exposing the supported portion for inspection by the inspection assembly 400. This enables omnidirectional flaw detection even when the annular workpiece is not rotating circumferentially. In other words, this solution, through the cooperation of the moving assembly 200 and the lifting assembly 300, enables omnidirectional inspection of the annular workpiece in both rotating and fixed states, making it suitable for different types of annular workpieces and greatly improving its applicability. For example, when the annular workpiece has a boss, the moving assembly 200 will be hindered and interfered with when driving the annular workpiece to rotate axially, preventing the support portion of the annular workpiece from being changed. In this case, the multiple lifting platforms can be raised and lowered separately to expose the support portion of the annular workpiece, enabling omnidirectional inspection of the annular workpiece. Optionally, a ladder is provided on the side wall of the housing 100 to facilitate personnel entering the water tank to observe the workpiece inspection. Optionally, a purification water tank is provided inside the housing 100 to purify the housing 100 after the inspection of the annular workpiece. It should be understood that the integrated arrangement of the housing 100 and the purification water tank makes full use of the space inside the housing 100.

[0038] like Figure 1As shown, the large annular workpiece full immersion ultrasonic flaw detection method of this embodiment uses the above-mentioned large annular workpiece full immersion ultrasonic flaw detection equipment, specifically including the following steps: S1, the annular workpiece is hoisted onto the lifting mechanism, and the lifting mechanism drives the annular workpiece to move vertically downward to place it on the moving component 200; S2, the moving component 200 supports the annular workpiece and drives the annular workpiece to move radially, so that the annular workpiece is located in the middle of the housing 100, realizing the centering and positioning of the annular workpiece; S3, it is determined whether the water level in the housing 100 has reached the preset height. If the water level in the housing 100 has not reached the preset height, water is pumped into the housing 100 until the water level in the housing 100 reaches the preset height, and then the detection component is moved radially along the annular workpiece. 400, after the detection component 400 reaches the detection position, the detection component 400 performs flaw detection on the surface of the annular workpiece. If the water level inside the housing 100 reaches a preset height, the detection component 400 is moved directly along the radial direction of the annular workpiece so that after the detection component 400 reaches the detection position, the detection component 400 performs flaw detection on the surface of the annular workpiece. During the flaw detection process, the rotating component rotates the annular workpiece circumferentially. S4, after the detection is completed, the lifting mechanism drives the annular workpiece to move vertically upward to unload the annular workpiece. Then it is determined whether there are any annular workpieces that have not been flaw detected. If there are no annular workpieces that have not been flaw detected, the water inside the housing 100 is pumped out to purify the housing 100. If there are any annular workpieces that have not been flaw detected, steps S1-S4 are repeated.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A large-scale ring-shaped workpiece fully immersed ultrasonic flaw detection device, characterized in that, The device includes a housing (100) for containing water and an annular workpiece, a moving assembly (200) arranged in the housing (100) for supporting the annular workpiece and driving the annular workpiece to move radially or rotate circumferentially, a lifting assembly (300) arranged in the housing (100) for supporting the annular workpiece and driving the annular workpiece to move vertically downward to place it on the moving assembly (200) or driving the annular workpiece to move vertically upward to unload the annular workpiece, and a detection assembly (400) arranged in the housing (100) for moving radially along the annular workpiece to perform flaw detection on the surface of the annular workpiece. Multiple detection assemblies (400) are provided, and multiple detection assemblies (400) are arranged at intervals along the circumference of the annular workpiece in the housing (100). The moving assembly (200) includes a moving track (210) disposed within the housing (100), a radial moving assembly (220) movably disposed on the moving track (210) for sliding along the moving track (210) to drive the annular workpiece to move radially, and a circumferential moving assembly (230) disposed on the radial moving assembly (220) for supporting the annular workpiece and driving the annular workpiece to rotate circumferentially. The moving track (210) includes a long track (211), a first short track (212) arranged on the first side of the middle of the long track (211), and a second short track (213) arranged on the second side of the middle of the long track (211). The radial moving group (220) includes four radial moving members, two of which are arranged at opposite ends of the long track (211), and the other two are arranged on the first short track (212) and the second short track (213). The circumferential moving group (230) includes four circumferential moving members, which are arranged on the radial moving members. The four circumferential moving members are arranged in a one-to-one correspondence with the four radial moving members. The radial moving part includes a moving carriage (221) that is slidably arranged on the moving track (210) and connected to the circumferential moving part, a moving drive mechanism (222) whose output end is connected to the moving carriage (221), and a wheel (223) that is rotatably arranged on the moving carriage (221) for abutting against the annular workpiece radially along the annular workpiece. The circumferential moving part includes a rotary drum (231) rotatably mounted on the moving vehicle (221) for supporting the annular workpiece and rotatable along the circumference of the annular workpiece, and a rotary drive mechanism (232) fixedly mounted on the moving vehicle (221) and whose output end is connected to the rotary drum (231). The inspection assembly (400) includes a movable support (410) disposed within the housing (100) for radial movement along the annular workpiece, and a flaw detection component (420) movably disposed on the movable support (410) for performing flaw detection on the surface of the annular workpiece.

2. The large-scale ring-shaped workpiece full-water immersion ultrasonic flaw detection equipment according to claim 1, characterized in that, The movable support (410) includes a detection track (411) arranged in the radial direction of the annular workpiece within the housing (100), a support frame (412) movably arranged on the detection track (411), a detection drive mechanism with its output end connected to the support frame (412), and a mounting base (413) arranged on the top of the support frame (412) and connected to the flaw detection piece (420).

3. The large-scale ring-shaped workpiece full-water immersion ultrasonic flaw detection equipment according to claim 2, characterized in that, The flaw detection component (420) includes a robotic arm (421) movably mounted on a mounting base (413), a flaw detection probe (422) mounted on the free end of the robotic arm (421), and a data transceiver (423) mounted on the robotic arm (421) and electrically connected to the flaw detection probe (422).

4. The large-scale ring-shaped workpiece full-water immersion ultrasonic flaw detection equipment according to claim 1, characterized in that, The lifting assembly (300) includes multiple lifting platforms arranged circumferentially within the housing (100) along the annular workpiece.

5. A method for ultrasonic flaw detection of large ring-shaped workpieces by full water immersion, characterized in that, The large annular workpiece full immersion ultrasonic flaw detection equipment according to any one of claims 1-4 specifically includes the following steps: S1, the ring-shaped workpiece is hoisted onto the lifting assembly (300), and the lifting assembly (300) drives the ring-shaped workpiece to move vertically downward to place it on the moving assembly (200); S2, the moving component (200) supports the annular workpiece and drives the annular workpiece to move radially so that the annular workpiece is located in the middle of the housing (100) to achieve the centering and positioning of the annular workpiece. S3, determine whether the water level inside the housing (100) has reached the preset height. If the water level inside the housing (100) has not reached the preset height, pump water into the housing (100) until the water level inside the housing (100) reaches the preset height. Then move the detection component (400) radially along the annular workpiece so that after the detection component (400) reaches the detection position, the detection component (400) performs flaw detection on the surface of the annular workpiece. If the water level inside the housing (100) has reached the preset height, move the detection component (400) directly radially along the annular workpiece so that after the detection component (400) reaches the detection position, the detection component (400) performs flaw detection on the surface of the annular workpiece. During the flaw detection process, the rotary drive mechanism (232) drives the annular workpiece to rotate circumferentially. S4. After the inspection is completed, the lifting assembly (300) drives the ring workpiece to move vertically upward to unload the ring workpiece. Then it is determined whether there is a ring workpiece that has not been inspected. If there is no ring workpiece that has not been inspected, the water in the housing (100) is pumped out to purify the housing (100). If there is a ring workpiece that has not been inspected, steps S1-S4 are repeated.

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