Welding seam scanning frame of shield tunneling machine

Abstract

The utility model provides a welding seam scanning frame of a shield tunneling machine. The welding seam scanning frame comprises a support, a moving assembly, a spraying assembly and a detecting assembly. The moving assembly comprises a plurality of connecting frames and magnetic wheels which are sequentially connected to the support along a first path, and the magnetic wheels and the connecting frames are arranged in a one-to-one correspondence mode. The spraying assembly comprises a spraying can connected to the support and a spraying mechanism arranged at a liquid outlet of the spraying can, the spraying can is used for containing coupling liquid, and the spraying mechanism is used for spraying the coupling liquid to a to-be-detected surface; the detection assembly is connected to the support and used for detecting the weld joint of the face to be detected. According to the welding seam scanning frame of the shield tunneling machine, the detection assembly is arranged at the bottom of the support in the sliding mode along the long axis of the support and tightly attached to the cutter head of the shield tunneling machine in the working state, comprehensive and accurate ultrasonic detection can be conducted on the cutter head of the shield tunneling machine, and possible defects or problems of the cutter head can be found in time.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel boring machine technology, specifically relating to a tunnel boring machine weld seam inspection frame. Background Technology

[0002] As the core equipment of modern tunnel engineering, the quality of the steel structure welds of tunnel boring machines (TBMs) directly affects the safety and reliability of underground tunneling operations. During the assembly of TBMs, the welded joints of key components such as the cutterhead and main drive are often hundreds of meters long, which greatly affects non-destructive testing.

[0003] When performing ultrasonic testing on the welds of tunnel boring machines (TBMs), the cutterhead's surface is extremely large and significantly uneven. Furthermore, the area around the cutterhead often contains a large amount of mud and sand, making it difficult for the coupling agent to adhere evenly to the weld. A common approach is a multi-person collaborative method: one person mixes the coupling agent, another uses a spraying tool to spray the weld from different angles, a third marks the defect locations, and a fourth removes the mud and sand. This method is labor-intensive and inefficient. During testing, operators need to maintain constant pressure to keep the probe in perpendicular contact with the test surface. However, in practice, the complex structure of the cutterhead, including reinforcing ribs and mud holes, requires frequent repositioning. This fatigue directly leads to fluctuations in contact pressure, increasing the rate of missed defects. Severe defects can affect the normal operation of the TBM and cause quality accidents. Utility Model Content

[0004] This utility model provides a shield machine weld seam scanning frame, which aims to solve the technical problems in the prior art where shield machine weld seam flaw detection requires the cooperation of multiple employees, which is time-consuming, labor-intensive, and lacks sufficient detection accuracy.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A shield tunneling machine weld inspection frame is provided, comprising:

[0007] support;

[0008] The movable component includes a plurality of connecting frames sequentially connected to the bracket along a first path and magnetic wheels rotatably connected to the connecting frames, wherein the magnetic wheels are arranged in a one-to-one correspondence with the connecting frames;

[0009] A spraying assembly includes a spray bottle connected to the bracket and a spraying mechanism disposed at the outlet of the spray bottle. The spray bottle is used to hold a coupling liquid, and the spraying mechanism is used to spray the coupling liquid onto the surface to be tested.

[0010] A detection component is slidably connected to a bracket along the first path, and the detection component is used to detect the weld seam on the surface to be tested.

[0011] In one possible implementation, the sprayer is slidably connected to the bracket along the first path, and the shield machine weld inspection frame further includes a movable driver connected to the bracket, the driving end of the movable driver being connected to the sprayer for driving the sprayer to slide along the first path.

[0012] In one possible implementation, the moving component further includes an encoder and a drive motor electrically connected to the encoder, the drive motor being connected to at least one of the magnetic wheel shafts.

[0013] In one possible implementation, the spraying mechanism includes a hose and a nozzle connected to the outlet of the hose, the inlet of the hose being connected to the outlet of the spray bottle, and the hose being used to deliver coupling liquid from the spray bottle to the nozzle.

[0014] In one possible implementation, the spraying assembly further includes a connecting clamp slidably connected to the bracket along the first path, and the spray head is fixed to the connecting clamp.

[0015] In one possible implementation, the connecting clamp includes:

[0016] A connecting block, slidably disposed on the side of the bracket along the first path; and

[0017] A clamping rod, one end of which is hinged to the connecting block with the hinge axis parallel to the first path, and the other end of which is connected to the nozzle. The clamping rod rotates around the connecting block to adjust the height of the nozzle.

[0018] In one possible implementation, the detection component includes a lifting frame slidably connected to the support along the first path, and a probe connected to the lifting frame, the probe being able to fit against the surface to be tested to detect the weld seam on the surface to be tested.

[0019] In one possible implementation, the lifting frame includes:

[0020] A sliding block is slidably disposed on the bracket along the first path;

[0021] A swing arm, the top of which is hinged to the sliding block, with the hinge axis parallel to the first path; and

[0022] The connecting frame is hinged to the bottom end of the swing rod on one side, and the hinge axis is parallel to the first path. The probe is hinged to the inner frame of the connecting frame, and the hinge axis is perpendicular to the first path.

[0023] In one possible implementation, the bracket is also connected to a handle, with the end of the handle away from the bracket forming a gripping end.

[0024] In one possible implementation, a washer is fitted onto the outer circumferential surface of the magnetic wheel.

[0025] The shield machine weld seam inspection frame provided by this utility model, compared with the prior art, features a connecting frame symmetrically arranged at both ends of the support in the moving component. Multiple magnetic wheels are rotatably mounted on the connecting frame and magnetically adhere to and roll with the surface to be tested. This allows the inspection device to move smoothly on the surface of the shield machine, and the magnetic attraction of the magnetic wheels ensures the stability of the inspection device during movement, preventing slippage or deviation and ensuring inspection accuracy. A spray bottle containing coupling fluid is sprayed onto the surface to be tested via a spraying mechanism that slides along the long axis of the support, providing excellent coupling conditions for ultrasonic testing, facilitating the transmission and reception of ultrasonic detection signals, and improving inspection results. The detection component can perform comprehensive and accurate ultrasonic testing of the shield machine's cutterhead, promptly detecting potential defects or problems. This application eliminates the need for multiple workers, significantly improving inspection efficiency and reducing labor costs. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of a shield machine weld seam inspection frame provided in an embodiment of this utility model. Figure 1 ;

[0028] Figure 2 A schematic diagram of the structure of a shield machine weld seam inspection frame provided in an embodiment of this utility model. Figure 2 ;

[0029] Figure 3 A schematic diagram of the structure of a shield machine weld seam inspection frame provided in an embodiment of this utility model. Figure 3 ;

[0030] Figure 4 for Figure 1 Top view;

[0031] Figure 5 for Figure 1 Side view;

[0032] Figure 6 for Figure 1 Rear view;

[0033] Figure 7 A schematic diagram of the working process of the shield machine weld inspection frame provided in an embodiment of this utility model;

[0034] Figure 8 for Figure 7 Top view.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Bracket;

[0037] 2. Moving component; 21. Connecting frame; 22. Magnetic wheel; 23. Encoder; 24. Drive motor; 25. Washer;

[0038] 3. Spraying assembly; 31. Sprayer; 32. Spray nozzle; 33. Connecting clamp; 331. Connecting block; 332. Clamping rod; 34. Hose;

[0039] 4. Detection components; 41. Probe; 42. Lifting frame; 421. Sliding block; 422. Swing rod; 423. Connecting frame;

[0040] 5. Handle;

[0041] 6. Cutter head. Detailed Implementation

[0042] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0044] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0046] It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. The directional terms "inner" and "outer" refer to the inside or outside relative to the outline of each component itself.

[0047] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0048] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0049] In addition, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0050] Please refer to the following: Figures 1 to 8 The present invention provides a shield machine weld seam scanning frame. The shield machine weld seam scanning frame includes a support 1, a moving component 2, a spraying component 3, and a detection component 4. The moving component 2 includes multiple connecting frames 21 sequentially connected to the support 1 along a first path, and magnetic wheels 22 rotatably connected to the connecting frames 21. The magnetic wheels 22 correspond one-to-one with the connecting frames 21. The spraying component 3 includes a spray bottle 31 connected to the support 1 and a spraying mechanism located at the outlet of the spray bottle 31. The spray bottle 31 is used to hold coupling fluid, and the spraying mechanism is used to spray coupling fluid onto the surface to be tested. The detection component 4 is slidably connected to the support 1 along the first path and is used to detect the weld seam on the surface to be tested.

[0051] In practice, bracket 1 is made of steel, which has high structural strength, is not easily deformed, and can be used stably as a support frame. Alternatively, a steel frame can be used, as long as it has high strength and can support the spraying component 3 and the detection component 4.

[0052] For specific implementation, please refer to Figure 1 and Figure 6 The arrows in the diagram represent the direction of the first path.

[0053] In practical implementation, this application utilizes the magnetic wheel 22 to magnetically fix the surface to be measured, thereby improving the adsorption and fixation effect between the device and the cutter head 6 and enhancing the stability during use.

[0054] The principle of use of this application is as follows: Place this device on the cutter head 6, such as... Figure 7 and Figure 8As shown, the magnetic wheel 22 moves and comes into contact with the surface to be tested. The spray bottle 31 delivers coupling liquid to the spraying mechanism, which sprays the coupling liquid onto the surface to be tested. The magnetic wheel 22 is moved so that the detection component moves to the surface of the coupling liquid, thus realizing the detection operation.

[0055] Compared with the prior art, the shield machine weld seam scanning frame provided in this embodiment has two connecting frames 21 symmetrically arranged at both ends of the support 1 in the moving component 2. Multiple magnetic wheels 22 are respectively rotatably arranged on the connecting frames 21 and magnetically attached to and rolling with the surface to be tested. This allows the detection device to move smoothly on the surface to be tested of the shield machine. The magnetic attraction of the magnetic wheels 22 ensures the stability of the detection device during movement, preventing the detection device from sliding or deviating, and ensuring the accuracy of the detection. The spray bottle 31 contains coupling fluid, which is sprayed onto the surface to be tested by the spraying mechanism sliding along the long axis of the support 1. This provides good coupling conditions for ultrasonic detection, which is beneficial to the transmission and reception of ultrasonic detection signals and improves the detection effect. The detection component 4 can perform comprehensive and accurate ultrasonic detection on the cutterhead 6 of the shield machine, and promptly detect any defects or problems that may exist in the cutterhead 6. This application does not require multiple workers to cooperate in the operation; only one employee needs to operate this tooling, which greatly improves the detection efficiency and reduces labor costs.

[0056] In some embodiments, the spray bottle 31 is slidably connected to the support 1 along a first path. The shield machine weld seam scanning frame also includes a movable driver connected to the support 1. The driving end of the movable driver is connected to the spray bottle 31 and is used to drive the spray bottle 31 to slide along the first path. The movable driver drives the spray bottle 31 to move, and the spray bottle 31 moves in coordination with the movement of the spraying mechanism, increasing the flexibility of the spraying mechanism, thereby increasing the spraying area and expanding the scope of use.

[0057] It should be noted that a switch is provided on the spray bottle 31 to ensure that the coupling fluid can remain inside the spray bottle 31. As one embodiment of the mobile driver, the mobile driver includes a mobile carriage that is slidably mounted on the bracket 1 along a first path and a vertical rod mounted on the mobile carriage, the top of which is connected to the spray bottle 31.

[0058] As another implementation of the movement of the spray bottle 31 along the first path, the spray bottle 31 is held by an employee.

[0059] In some embodiments, see Figures 1 to 3 The moving component 2 also includes an encoder 23 and a drive motor 24 electrically connected to the encoder 23. The drive motor 24 is connected to the shaft of at least one of the magnetic wheels 22. The drive motor 24 provides rotational power to the magnetic wheels 22, enabling the magnetic wheels 22 to move on the surface to be measured. The encoder 23 can record the data from the drive motor 24, allowing employees to easily obtain the movement range and position of the magnetic wheels 22, increasing ease of use.

[0060] In practice, two drive motors 24 are provided, which are respectively connected to the shafts of the magnetic wheels 22 at both ends of the bracket 1.

[0061] In some embodiments, see Figures 1 to 4 The spraying mechanism includes a hose 34 and a nozzle 32 connected to the outlet of the hose 34. The inlet of the hose 34 is connected to the outlet of the spray bottle 31, and the hose 34 is used to transport the coupling fluid in the spray bottle 31 to the nozzle 32. The hose 34 connects the spray bottle 31 and the nozzle 32, facilitating the transport of the coupling fluid. This avoids the structural complexity and failure risks associated with requiring additional power or complex pumping devices, ensuring the stability and continuity of the coupling fluid supply. During ultrasonic testing, it continuously supplies coupling fluid to the nozzle 32, ensuring that the nozzle 32 can spray the coupling fluid onto the surface to be tested in a timely and uniform manner, maintaining a good testing environment and testing effect, and improving the reliability and efficiency of the entire testing device. The nozzle 32 can accurately spray the coupling fluid onto the surface to be tested, ensuring complete coating and thus guaranteeing the normal operation of the testing work.

[0062] Optionally, the hose can be a rubber tube or a corrugated tube.

[0063] In some embodiments, see Figures 1 to 6 The spraying assembly 3 also includes a connecting clamp 33 that slides along the first path and is connected to the bracket 1, with the nozzle 32 fixed to the connecting clamp 33. The connecting clamp 33 can stably fix the nozzle 32, allowing the nozzle 32 to perform spraying operations stably. The connecting clamp 33 slides along the long axis of the bracket 1, which can drive the nozzle 32 to adjust its position, increasing the flexibility of use.

[0064] In some embodiments, see Figures 1 to 3 The connecting clamp 33 includes a connecting block 331 and a clamping rod 332. The connecting block 331 is slidably disposed on the side of the bracket 1 along a first path; one end of the clamping rod 332 is hinged to the connecting block 331, and the hinge axis is parallel to the first path; the other end of the clamping rod 332 is connected to the nozzle 32; the clamping rod 332 rotates around the connecting block 331 to adjust the height of the nozzle 32.

[0065] The connecting clamp 33 provided in this embodiment has high structural stability. The connecting block 331 can slide along the long axis of the bracket 1, and the clamping rod 332 swings up and down, driving the nozzle 32 to adjust the spraying angle and increase the range of use. The connecting block 331 and the clamping rod 332 are hinged, increasing the flexibility of use.

[0066] As one embodiment of the movement of the connecting block 331, the side of the bracket 1 is provided with a guide groove extending along its own long axis. The connecting block 331 has a rolling wheel, which rolls in cooperation with the guide groove, driving the connecting block 331 to move along the long axis of the bracket 1.

[0067] In some embodiments, see Figure 1 and Figure 6 The detection component 4 includes a lifting frame 42 slidably connected to the bracket 1 along a first path, and a probe 41 connected to the lifting frame 42. The probe 41 can be in contact with the surface to be tested to detect the weld seam on the surface. The lifting frame 42 can move the probe 41 up and down, making it convenient for the probe 41 to be close to the surface of the coupling fluid during operation, and to be spaced apart from the bottom surface when not in operation, avoiding damage to the probe 41 and facilitating its storage, thus increasing ease of use. When in use, the probe 41 is in close contact with the surface of the coupling fluid for easy normal detection.

[0068] It should be noted that probe 41 uses a flaw detection probe from the prior art. The specific structure of probe 41 is not the inventive point of this application and will not be described in detail here.

[0069] In some embodiments, see Figure 1 and Figure 6 The lifting frame 42 includes a sliding block 421, a swing rod 422, and a connecting frame 423. The sliding block 421 is slidably mounted on the support 1 along a first path; the top of the swing rod 422 is hinged to the sliding block 421, and the hinge axis is parallel to the first path; one side of the connecting frame 423 is hinged to the bottom end of the swing rod 422, and the hinge axis is parallel to the first path; the probe 41 is hinged to the inner frame of the connecting frame 423, and the hinge axis is perpendicular to the first path.

[0070] The lifting frame 42 provided in this embodiment can move up and down flexibly. The sliding block 421 is slidably disposed on the side of the support 1 along the long axis of the support 1, ensuring the smooth sliding of the lifting frame 42 in the long axis direction. The top of the swing rod 422 is hinged to the sliding block 421 and the hinge axis is parallel to the long axis, allowing the swing rod 422 to rotate around the axis, thereby driving the connecting frame 423 and the probe 41 to adjust their angles. One side of the connecting frame 423 is hinged to the bottom end of the swing rod 422 and the hinge axis is parallel to the long axis. The inner frame is hinged to the probe 41. This structural design allows the probe 41 to be flexibly adjusted in multiple dimensions. This greatly improves the flexibility and accuracy of the inspection, ensuring that any defects or problems that may exist in various parts of the cutter head 6 can be detected.

[0071] In some embodiments, see Figures 1 to 3 The bracket 1 is also connected to a handle 5, with the end of the handle 5 away from the bracket 1 forming a gripping end. The handle 5 facilitates the movement of the device by employees, providing a gripping point and increasing the ease of handling.

[0072] In some embodiments, see Figure 1 and Figure 2A washer 25 is fitted onto the outer circumferential surface of the magnetic wheel 22. The washer 25 increases the friction between the magnetic wheel 22 and the surface to be measured, improving movement stability. The rubber washer 25 acts as a buffer and shock absorber. This reduces the impact and friction on the surface to be measured during the rolling of the magnetic wheel 22, preventing damage to the surface due to excessive friction and protecting the integrity and surface quality of the surface to be measured. The use of a rubber washer also enhances the adsorption force and sealing between the magnetic wheel 22 and the surface to be measured due to the elasticity of the rubber. In the magnetically attached state, the washer 25 can better fill the tiny gaps between the magnetic wheel 22 and the surface to be measured, preventing substances such as coupling fluid from seeping out of the gaps.

[0073] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shield tunneling machine weld seam inspection frame, characterized in that, include: support; The movable component includes a plurality of connecting frames sequentially connected to the bracket along a first path and magnetic wheels rotatably connected to the connecting frames, wherein the magnetic wheels are arranged in a one-to-one correspondence with the connecting frames; A spraying assembly includes a spray bottle connected to the bracket and a spraying mechanism disposed at the outlet of the spray bottle. The spray bottle is used to hold a coupling liquid, and the spraying mechanism is used to spray the coupling liquid onto the surface to be tested. A detection component is slidably connected to a bracket along the first path, and the detection component is used to detect the weld seam on the surface to be tested.

2. The shield machine weld inspection frame as described in claim 1, characterized in that, The sprayer is slidably connected to the bracket along the first path. The shield machine weld inspection frame also includes a movable driver connected to the bracket. The driving end of the movable driver is connected to the sprayer and is used to drive the sprayer to slide along the first path.

3. The shield machine weld inspection frame as described in claim 1, characterized in that, The moving component also includes an encoder and a drive motor electrically connected to the encoder, the drive motor being connected to at least one of the magnetic wheel shafts.

4. The shield machine weld inspection frame as described in claim 1, characterized in that, The spraying mechanism includes a hose and a nozzle connected to the outlet of the hose. The inlet of the hose is connected to the outlet of the spray bottle. The hose is used to deliver the coupling liquid in the spray bottle to the nozzle.

5. The shield machine weld inspection frame as described in claim 4, characterized in that, The spraying assembly further includes a connecting clamp that is slidably connected to the bracket along the first path, and the spray head is fixed to the connecting clamp.

6. The shield machine weld inspection frame as described in claim 5, characterized in that, The connecting clamp includes: A connecting block, slidably disposed on the side of the bracket along the first path; and A clamping rod, one end of which is hinged to the connecting block with the hinge axis parallel to the first path, and the other end of which is connected to the nozzle. The clamping rod rotates around the connecting block to adjust the height of the nozzle.

7. The shield machine weld inspection frame as described in claim 1, characterized in that, The detection component includes a lifting frame slidably connected to the bracket along the first path, and a probe connected to the lifting frame. The probe can fit against the surface to be tested to detect the weld seam on the surface to be tested.

8. The shield machine weld inspection frame as described in claim 7, characterized in that, The lifting frame includes: A sliding block is slidably disposed on the bracket along the first path; A swing arm, the top of which is hinged to the sliding block, with the hinge axis parallel to the first path; and The connecting frame is hinged to the bottom end of the swing rod on one side, and the hinge axis is parallel to the first path. The probe is hinged to the inner frame of the connecting frame, and the hinge axis is perpendicular to the first path.

9. The shield machine weld inspection frame as described in claim 1, characterized in that, The bracket is also connected to a handle, with the end of the handle away from the bracket forming a gripping end.

10. The shield machine weld inspection frame as described in claim 1, characterized in that, A washer is fitted on the outer circumferential surface of the magnetic wheel.

Images