Self-walking tomography steel tube concrete structure detection data acquisition device
By using a self-propelled tomographic imaging detection device and a magnetic wall-climbing robot to drag the transducer assembly, the precise positioning and automated data acquisition of the ultrasonic transducer are achieved, solving the problems of low detection efficiency and high safety risks in existing technologies, and improving detection accuracy and safety.
Patent Information
- Application Number
- CN202423010967.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-06
AI Technical Summary
Existing non-destructive testing methods for concrete suffer from problems such as slow manual sensor deployment, lack of automated excitation signals, low data acquisition efficiency, limited number of test sections, low axial detection accuracy, and high safety risks associated with high-altitude operations, which are particularly prominent in the testing of steel-concrete composite structures.
A self-propelled tomographic imaging detection device is adopted, and the transducer assembly is dragged by a magnetic wall-climbing robot to achieve precise positioning of the ultrasonic transducer and automated data acquisition. The transducer assembly is controlled by a multi-channel data acquisition host to carry out cross-operation, avoiding high-altitude operations.
It improves the convenience and efficiency of detection, achieves high-precision data acquisition, reduces safety risks, and is suitable for target structures of different sizes.
Smart Images
Figure CN223551675U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete structure testing technology, and in particular to a self-propelled tomographic imaging data acquisition device for testing steel pipe concrete structures. Background Technology
[0002] Concrete structures are crucial components in bridges, tunnels, and industrial and civil buildings, and their internal property testing is essential for project quality evaluation and safety assessment. Traditional testing methods for concrete structures involve destructive strength tests on prepared cubic specimens. However, practice shows that the performance indicators of concrete structures measured using specimen tests often differ significantly from the actual performance of the concrete structure within the building. Therefore, on-site testing techniques for directly assessing the performance of concrete structures have become an important means of concrete engineering quality management.
[0003] On-site testing includes two methods: core sampling and non-destructive testing. Among them, non-destructive testing is widely used due to its advantages of convenience, efficiency and no damage to the engineering structure.
[0004] Among the non-destructive testing methods for concrete structures, the most commonly used and effective method is ultrasonic testing. The principle of ultrasonic testing is to use an ultrasonic transmitting probe to act on the concrete structure being tested. The ultrasonic stress wave penetrates inside the concrete or is reflected at the interface. Then, the wave velocity, wave amplitude, signal spectrum, and signal waveform are obtained through a receiving probe and signal detection equipment. By analyzing and interpreting the received signal, a quantitative or qualitative description of the strength, internal defects (voids, cracks, segregation, interlayers, non-compactness, etc.), and thickness of the concrete component can be obtained, thereby monitoring and evaluating the safety and quality of the concrete structure.
[0005] Currently, most non-destructive testing instruments for concrete used both domestically and internationally are based on the analysis and processing of received one-dimensional signals and manual interpretation, resulting in low efficiency and poor reliability. Since concrete is a mixture of cement, sand, and coarse aggregate, and given the complex environmental conditions and numerous influencing factors in bridge inspections, directly obtaining a relatively definitive description of the internal quality of concrete from one-dimensional received signals remains extremely difficult and uncertain, generally requiring considerable experience from the instrument operator. This has become one of the main reasons severely restricting the widespread adoption and development of ultrasonic testing methods for concrete.
[0006] Currently, most tomographic imaging techniques employ manually deployed ultrasonic transducers, using a hammer-based excitation method. This approach presents the following main problems:
[0007] 1. Before testing, it is necessary to mark the area in advance; the sensor deployment accuracy is not high.
[0008] 2. Due to the slow speed of manual sensor deployment and the lack of automated excitation signals, data acquisition efficiency is low;
[0009] 3. Limited work efficiency, limited number of inspection sections, and low accuracy of axial inspection results;
[0010] 4. Inspecting steel-concrete composite structures involves working at heights, which poses a high safety risk. Utility Model Content
[0011] Therefore, the purpose of this utility model is to provide a self-propelled tomographic imaging data acquisition device for steel pipe concrete structure detection, which uses a magnetic wall-climbing robot to drag the transducer assembly and performs concrete tomographic imaging detection on its own.
[0012] To achieve the above objectives, this utility model provides a self-propelled tomographic imaging data acquisition device for steel-concrete composite structures, comprising: multiple transducer assemblies connected end-to-end in a circular ring surrounding the outer periphery of the steel-concrete composite structure; and also including a drag-and-fix aluminum plate, a magnetic wall-climbing robot, a robot remote control, and a multi-channel data acquisition host.
[0013] The transducer assembly includes a magnetic transducer and a transducer connector; the magnetic transducer is mounted on the transducer connector, and the transducer connectors located on both sides of the steel-concrete composite structure are respectively connected to one end of the drag-fixed aluminum plate, and the other end of the drag-fixed aluminum plate is connected to the magnetic wall-climbing robot, which communicates wirelessly with the robot remote controller; the transducer assembly is connected to a multi-channel data acquisition host through a transmission cable.
[0014] In a further preferred embodiment, the magnetic transducer is a cylinder that autonomously adheres to the surface of the steel-concrete structure to emit and receive ultrasonic signals.
[0015] More preferably, the transducer connector is a hollow steel pipe, and a transmission cable connecting the magnetic transducer and the multi-channel data acquisition host is installed inside the central control steel pipe.
[0016] More preferably, the specific shape of the drag-and-fix aluminum plate is a rectangular thin plate.
[0017] More preferably, the magnetic transducer transmits and receives ultrasonic signals in the radial direction of the steel-concrete composite structure.
[0018] More preferably, the other end of the drag-and-fix aluminum plate is hinged to the magnetic wall-climbing robot.
[0019] More preferably, the transducer connector is hinged to one end of the drag-fixed aluminum plate.
[0020] The self-propelled tomographic imaging data acquisition device for inspecting steel-tube concrete structures disclosed in this application has at least the following advantages compared to existing technologies:
[0021] 1. This application uses a transducer assembly, which can achieve precise positioning of ultrasonic transducers according to target structures of different sizes, making the operation convenient and efficient;
[0022] 2. By using a magnetic wall-climbing robot to drag the transducer assembly, the ultrasonic transducer assembly can be dragged according to the designed time, direction and fixed walking step length, which is highly efficient and avoids the need for personnel to work at heights.
[0023] 3. By controlling the transducer combination through a multi-channel data acquisition host, crossfire operation can be achieved, which greatly improves data acquisition efficiency and detection accuracy. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the self-propelled tomographic imaging data acquisition device for steel tube concrete structures provided by this utility model.
[0025] In the picture:
[0026] 1. Transducer assembly; 101. Magnetic ultrasonic transducer; 102. Transducer connector; 2. Magnetic wall-climbing robot; 3. Drag-and-fix aluminum plate; 4. Robot remote control; 5. Multi-channel data acquisition host; 6. Data transmission cable. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0028] like Figure 1 As shown, one embodiment of this utility model provides a self-propelled tomographic imaging data acquisition device for steel-concrete composite structure detection, comprising: multiple transducer assemblies connected end to end in a circular ring surrounding the outer periphery of the steel-concrete composite structure; and a drag-and-fix aluminum plate 3, a magnetic wall-climbing robot 2, a robot remote controller 4, and a multi-channel data acquisition host 5.
[0029] Each transducer assembly 1 includes a magnetically attached transducer 101 and a transducer connector 102. The magnetically attached transducer is mounted on the transducer connector 102. The magnetically attached transducer is cylindrical, and its operating frequency is designed according to requirements. It has a magnetic attraction function, autonomously adhering to the surface of the steel-concrete composite structure to transmit and receive ultrasonic signals. The magnetically attached transducer transmits and receives ultrasonic signals in the radial direction of the steel-concrete composite structure.
[0030] As shown in the figure, the transducer connectors 102 on both sides of the steel-concrete composite structure are also connected to one end of a drag-and-fix aluminum plate 3. The other end of the drag-and-fix aluminum plate 3 is connected to a magnetic wall-climbing robot 2. The transducer connectors connecting the drag-and-fix aluminum plates are set on opposite sides of the steel-concrete composite structure. At this time, the straight-line distance between the two transducer connectors is the diameter of the steel-concrete composite structure. When the two magnetic wall-climbing robots move up or down simultaneously, they scan the steel-concrete composite structure upward or downward to obtain tomographic imaging results. In the figure, S1 to Sn represent each transducer combination; one drag-and-fix aluminum plate is set on the transducer connector between S1 and Sn; the other drag-and-fix aluminum plate is set on the transducer connector between Sn / 2 and S(n / 2+1).
[0031] The magnetic wall-climbing robot 2 communicates wirelessly with the robot remote controller; the magnetic wall-climbing robot 2 is connected to the multi-channel data acquisition host 5 via a transmission cable 6.
[0032] The transducer connector 102 is a hollow steel pipe, inside which is installed a transmission cable 6 connecting the magnetic transducer 101 to the multi-channel data acquisition host 5. The magnetic wall-climbing robot 3, with a built-in encoder, is used to drag the ultrasonic transducer assembly 1 according to the designed time, direction, and fixed walking step length. The multi-channel data acquisition host 5 controls the transducer assembly 1, sequentially controlling each magnetic ultrasonic transducer 101 to emit ultrasonic energy according to the designed sequence, while other transducers receive signals, achieving crossfire operation.
[0033] The specific shape of the drag-and-fix aluminum plate 3 is a rectangular thin plate.
[0034] For ease of movement, the other end of the drag-and-fix aluminum plate 3 is hinged to the magnetic wall-climbing robot 2. The transducer connector 102 is hinged to one end of the drag-and-fix aluminum plate 3. As shown in the figure, in this application, the transducer assembly is evenly distributed in a ring array around the outer periphery of the steel-concrete composite structure; in this embodiment, there are two magnetic wall-climbing robots and two drag-and-fix aluminum plates 3; they are respectively set on opposite sides of the steel-concrete composite structure. The two magnetic wall-climbing robots move in the same direction. If they move from bottom to top, tomographic imaging scanning of the steel-concrete composite structure can be performed from bottom to top.
[0035] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A self-propelled tomographic imaging data acquisition device for inspecting steel-tube concrete structures, characterized in that, include: The system includes multiple transducer assemblies connected end to end, forming a ring around the outer perimeter of the steel-concrete composite structure; it also includes a drag-and-fix aluminum plate, a magnetic wall-climbing robot, a robot remote control, and a multi-channel data acquisition host. The transducer assembly includes a magnetic transducer and a transducer connector; the magnetic transducer is mounted on the transducer connector, and the transducer connectors located on both sides of the steel-concrete composite structure are respectively connected to one end of the drag-fixed aluminum plate, and the other end of the drag-fixed aluminum plate is connected to the magnetic wall-climbing robot, which communicates wirelessly with the robot remote controller; the transducer assembly is connected to a multi-channel data acquisition host through a transmission cable.
2. The self-propelled tomographic imaging data acquisition device for steel tube concrete structures according to claim 1, characterized in that, The magnetic transducer is a cylinder that autonomously adheres to the surface of the steel-concrete structure to emit and receive ultrasonic signals.
3. The self-propelled tomographic imaging data acquisition device for steel-tube concrete structures according to claim 1, characterized in that, The transducer connector is a hollow steel pipe, and a transmission cable connecting the magnetic transducer and the multi-channel data acquisition host is installed inside the hollow steel pipe.
4. The self-propelled tomographic imaging data acquisition device for steel-tube concrete structures according to claim 1, characterized in that, The specific shape of the drag-and-fix aluminum plate is a rectangular thin plate.
5. The self-propelled tomographic imaging data acquisition device for steel-tube concrete structures according to claim 1, characterized in that, The magnetic transducer transmits and receives ultrasonic signals in the radial direction of the steel-concrete composite structure.
6. The self-propelled tomographic imaging data acquisition device for steel-tube concrete structures according to claim 1, characterized in that, The other end of the drag-and-fix aluminum plate is hinged to the magnetic wall-climbing robot.
7. The self-propelled tomographic imaging data acquisition device for steel tube concrete structure inspection according to claim 1, characterized in that, The transducer connector is hinged to one end of the drag-fixed aluminum plate.