Multi-parameter fusion columnar component strength detection device and method

Abstract

The invention discloses a multi-parameter fusion columnar component strength detection device and method, and belongs to the technical field of engineering structure nondestructive detection.The device comprises a fixing frame, a fixing assembly is arranged in the fixing frame, and the top of one side of the fixing frame is fixedly connected with a magnetic attraction side plate used for unmanned aerial vehicle conveying; a lifting assembly is arranged at the bottom end of the fixing frame, a testing assembly is integrated on the side, facing a component, of the lifting assembly, indentation mechanical testing and the sound wave excitation function are integrated, pressure data can be synchronously recorded when the surface of the component is pressed, and an internal impact mechanism is automatically triggered to excite sound waves when a pressure head retracts to the final position. According to the method, mechanical response and sound wave signals are synchronously obtained at the same measuring point, multi-parameter data fusion analysis is effectively supported, the accuracy and reliability of columnar component strength inversion are remarkably improved, and the method is suitable for in-situ strength evaluation of various columnar supporting structures such as mine pillars, underground chamber rock pillars and concrete pillars.

Description

Technical Field

[0001] This invention belongs to the field of non-destructive testing technology for engineering structures, specifically relating to a multi-parameter fusion-based strength testing device and method for columnar components. This device is suitable for in-situ strength testing and comprehensive performance evaluation of mine pillars, underground chamber rock pillars, concrete columns in building structures, and other similar columnar load-bearing components. Background Technology

[0002] In mines, underground chambers, and various building structures, columnar components (mine pillars, rock pillars, concrete pillars, etc.) serve as the core load-bearing units. Their mechanical strength and overall stability directly determine the safety and service life of the engineering structure. Therefore, it is crucial to develop a method and technical equipment that can accurately and efficiently assess the in-situ strength of columnar components.

[0003] Traditional methods for assessing the strength of load-bearing components, such as sampling laboratory tests or on-site point load tests, have inherent limitations: (1) The sampling process inevitably damages the structural integrity of the component and is detached from its actual environment (such as stress and humidity), resulting in test results that cannot truly reflect the actual load-bearing performance of the component; (2) Existing in-situ testing equipment often has relatively simple functions and is mostly limited to obtaining a single type of physical parameter, such as measuring only the sound wave velocity or only performing surface indentation tests. This "single parameter" testing mode is difficult to fully characterize the complex mechanical behavior of materials. Due to the lack of complementary and corrective information from multiple sources, when indirectly calculating strength based on a single parameter, there are significant defects such as large model errors and insufficient accuracy; (3) Due to the fixed structural design, many devices are difficult to adapt to columnar components with different diameters, cross-sectional shapes, or surface curvatures, resulting in sparse distribution and incomplete coverage of test points, making it impossible to achieve a systematic spatial assessment of the strength of the entire component.

[0004] In recent years, the development of non-destructive testing technologies such as acoustic wave testing has made it possible to indirectly evaluate material strength by inverting wave velocity fields. However, the field application of such technologies still faces challenges: existing acoustic wave testing equipment usually requires separate arrangement of the transmitting probe and the receiving sensor, which is cumbersome and inefficient. Moreover, the excitation energy and consistency of the acoustic wave emission source are difficult to control precisely, which directly affects data quality and repeatability. More importantly, such equipment generally lacks integrated mechanical loading functions and cannot simultaneously acquire the acoustic response and local mechanical deformation of the component during the application of load. Therefore, it is difficult to construct and verify an accurate strength model that can reveal the relationship between stress and acoustic properties.

[0005] In summary, existing technologies for strength assessment of columnar members suffer from problems such as limited testing parameters, poor equipment adaptability, and a disconnect between the testing process and the real-world environment, resulting in insufficient comprehensiveness and accuracy of the assessment results. Therefore, there is an urgent need for an in-situ testing device that can integrate multiple testing functions, adapt to different member sizes, and perform multi-parameter fusion analysis. Summary of the Invention

[0006] The purpose of this invention is to provide a multi-parameter fusion columnar component strength testing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-parameter fusion columnar component strength testing device, comprising a fixed frame, a fixed component inside the fixed frame, a battery compartment fixedly connected to one side of the fixed frame, a magnetic side plate for drone transport fixedly connected to the top of one side of the fixed frame, a lifting component at the bottom of the fixed frame, and a testing component on the side of the lifting component facing the columnar component.

[0008] In a preferred embodiment, the fixing component includes a robotic arm limiting frame fixedly connected to both sides of the inner cavity of the fixing frame, and the ends of both robotic arm limiting frames are provided with arc-shaped clamping plates.

[0009] In a preferred embodiment, the lifting assembly includes a guide slide fixedly connected to the bottom of one side of the fixed frame, a first motor fixedly connected to the top of the guide slide, and a transmission screw located inside the guide slide fixedly connected to the output shaft of the first motor.

[0010] In a preferred embodiment, a C-shaped limiting bracket is slidably connected to one side of the guide carriage, and a threaded transmission block that is threaded to the outside of the transmission screw is fixedly connected to the back of the C-shaped limiting bracket.

[0011] In a preferred embodiment, the C-shaped limiting frame has sliding parts fixedly connected to both sides of the side facing the guide slide, and the guide slide has guide grooves adapted to the sliding parts on both sides facing outward.

[0012] In a preferred embodiment, a first rotating arc plate is slidably connected to the top of the C-shaped limiting frame near the columnar member, an arc-shaped limiting rod is fixedly connected inside the C-shaped limiting frame, the center of the bottom of the first rotating arc plate is slidably connected to the outside of the limiting rod, and test components are fixedly connected to both ends of the top of the first rotating arc plate.

[0013] In a preferred embodiment, a second motor is fixedly connected to the top of the C-shaped limiting frame, a transmission gear is fixedly connected to the output shaft of the second motor, and the back of the first rotating arc plate is provided with back teeth that mesh with the transmission gear.

[0014] In a preferred embodiment, each of the test components includes an L-shaped frame fixedly connected to a first rotating arc plate. An electric cylinder is fixedly connected inside the L-shaped frame. A fixed sleeve is fixedly connected to the telescopic end of the electric cylinder. A sliding column is slidably connected inside the fixed sleeve at the end facing the columnar member. A truncated cone is fixedly connected inside the sliding column at the end facing the columnar member. The sliding column and the fixed sleeve are fixedly connected by a spring.

[0015] In a preferred embodiment, a pressure sensor is fixedly connected to one side of the inner cavity of the fixed sleeve, and a groove adapted to one side of the truncated cone is provided at the opening of the fixed sleeve, and a sound wave transmitter trigger protrusion is provided inside the groove.

[0016] In a preferred embodiment, a second rotating arc plate is slidably connected to the bottom of the C-shaped limiting frame near the columnar member. The back of the second rotating arc plate is also provided with back teeth. A third motor is fixedly connected to the bottom of the C-shaped limiting frame. A drive gear that meshes with the back teeth of the second rotating arc plate is fixedly connected to the output shaft of the third motor. An electric telescopic rod is fixedly connected to the center of the side of the second rotating arc plate facing the columnar member. A one-third circular arc-shaped bonding plate is fixedly connected to the telescopic end of the electric telescopic rod. Multiple sound wave receivers are fixedly connected inside the arc-shaped bonding plate.

[0017] As a preferred embodiment, the present invention also proposes a multi-parameter fusion method for strength testing of columnar members, comprising the following steps: S1. Use a drone to transport the strength testing device in a folded or retracted state to the designated starting position of the columnar member to be tested; S2. The strength testing device is fixed to the columnar member by an arc-shaped clamping plate; S3. At a fixed height, perform synchronous testing of mechanical response and acoustic signal at multiple points along the circumference of the columnar component; S4. Based on the mechanical response and acoustic signal obtained from the test, the wave velocity field image and the pressure value distributed along the circumference of the column are obtained; S5. Based on the established relationship between pressure and strength, obtain the strength values ​​distributed along the circumference of the column; S6. Based on the circumferential strength value and wave velocity field imaging, the circumferential strength value calculated in step 5 is used as the boundary constraint condition, and the wave velocity field is used as the reference for internal strength calculation to obtain the two-dimensional strength distribution of the columnar component. S7. Using the lifting function of the device, repeat steps 3-6 to obtain the intensity distribution cloud map at different heights of the columnar component (e.g., one section every 0.5 meters or 1 meter); S8. Based on the three-dimensional strength distribution of columnar members, statistical theory is used to determine the probability distribution model of the strength dataset and calculate the characteristic strength of columnar members.

[0018] Compared with the prior art, the beneficial effects of the present invention are: This multi-parameter fusion columnar component strength testing device integrates indentation mechanical testing and acoustic excitation functions into a single testing component. It records pressure values ​​when pressing against the rock surface and automatically triggers an internal impact to generate acoustic waves when the indenter retracts to its endpoint. This integrated design allows for the simultaneous acquisition of pressure data and acoustic signals from the same measuring point in a single operation, providing richer and more coordinated in-situ data for the comprehensive inversion of columnar component (e.g., pillar) strength, thus improving the reliability of the evaluation results. This multi-parameter fusion columnar component strength testing device, by setting up a lifting component driven by a first motor and a rotating arc plate driven by a second motor, realizes the automatic positioning of the test component in height and circumference on the side of the pillar. This design can systematically plan multiple measuring points on the surface of columnar components (such as pillars), replacing the tedious process of repeated manual movement of equipment, significantly improving testing efficiency and data coverage, and providing technical support for comprehensively evaluating the strength distribution of columnar components (such as pillars). This multi-parameter fusion columnar component strength testing device, through the acoustic receiver array set on the second rotating arc plate and its driven electric telescopic rod, enables the acoustic receiver array to adaptively conform to the surface of columnar components (such as mine pillars) of different diameters. The ring arrangement of multiple acoustic receivers, combined with the mechanically triggered acoustic source in the integrated testing component, constitutes a complete acoustic testing system, effectively ensuring the quality and consistency of acoustic signal acquisition, and laying the foundation for accurate inversion of the internal wave velocity field of columnar components (such as mine pillars). Attached Figure Description

[0019] Figure 1 This is a front view of the structure of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a schematic diagram of the rear side of the structure of the present invention; Figure 4 This is a front view of the C-type limit bracket; Figure 5 This is a schematic diagram of the internal structure of the test component; Figure 6 This is a bottom schematic diagram of the structure of the present invention.

[0020] In the diagram: 1. Fixed frame; 101. Magnetic side plate; 102. Robotic arm limiting frame; 2. Battery compartment; 3. Guide slide; 301. Guide groove; 4. First motor; 5. Transmission screw; 6. C-type limiting frame; 601. Threaded transmission block; 602. Limiting rod; 603. Sliding part; 7. First rotating arc plate; 701. Back tooth; 8. Test assembly; 801. Electric cylinder; 802. Fixed sleeve; 803. Sliding column; 804. Conical frustum; 805. Spring; 806. Pressure sensor; 807. Sound wave transmitter trigger protrusion; 9. Second rotating arc plate; 901. Third motor; 10. Electric telescopic rod; 11. Arc-shaped bonding plate; 12. Sound wave receiver; 13. Second motor; 1301. Transmission gear. Detailed Implementation

[0021] The present invention will be further described below with reference to embodiments.

[0022] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] Please see Figures 1-6 The present invention provides a multi-parameter fusion columnar component strength testing device, including a fixed frame 1, a fixing component inside the fixed frame 1, a battery compartment 2 fixedly connected to one side of the fixed frame 1, a magnetic side plate 101 for drone transportation fixedly connected to the top of one side of the fixed frame 1, and the fixing component including a robotic arm limiting frame 102 fixedly connected to both sides of the inner cavity of the fixed frame 1, and an arc-shaped clamping plate at the end of each of the two robotic arm limiting frames 102. Using a drone, the entire multi-parameter fusion columnar component strength testing device is transported to a suitable position near the columnar component (e.g., a mine pillar) via the magnetic side plate 101. The fixing components inside the fixing frame 1 begin to work, and the arc-shaped clamping plates at the ends of the two robotic arm limit frames 102 initially fix the device, ensuring that the device remains relatively stable during subsequent operations and providing stable support for subsequent testing work.

[0024] Please see Figures 1-6The bottom of the fixed frame 1 is provided with a lifting assembly. A test assembly 8 is provided on the side of the lifting assembly facing the columnar member (e.g., a mine pillar). The lifting assembly includes a guide slide 3 fixedly connected to the bottom of one side of the fixed frame 1. A first motor 4 is fixedly connected to the top of the guide slide 3. A transmission screw 5 located inside the guide slide 3 is fixedly connected to the output shaft of the first motor 4. A C-shaped limiting frame 6 is slidably connected to one side of the guide slide 3. A threaded transmission block 601 threadedly connected to the outside of the transmission screw 5 is fixedly connected to the back of the C-shaped limiting frame 6. Sliding parts 603 are fixedly connected to both sides of the C-shaped limiting frame 6 facing the guide slide 3. Guide grooves 301 adapted to the sliding parts 603 are provided on both outward-facing sides of the guide slide 3. A first rotating arc plate 7 is slidably connected to the top of the C-shaped limiting frame 6 near the columnar member (e.g., a mine pillar). A first rotating arc plate 7 is fixedly connected to the inside of the C-shaped limiting frame 6. An arc-shaped limiting rod 602 is slidably connected to the outside of the center of the bottom of the first rotating arc plate 7. Test components 8 are fixedly connected to both ends of the top of the first rotating arc plate 7. A second motor 13 is fixedly connected to the top of the C-shaped limiting frame 6. A transmission gear 1301 is fixedly connected to the output shaft of the second motor 13. A back tooth 701 that meshes with the transmission gear 1301 is provided on the back of the first rotating arc plate 7. Each test component 8 includes an L-shaped frame fixedly connected to the first rotating arc plate 7. An electric cylinder 801 is fixedly connected inside the L-shaped frame. A fixed sleeve 802 is fixedly connected to the telescopic end of the electric cylinder 801. A sliding column 803 is slidably connected inside the fixed sleeve 802 facing the end of the ore pillar. A truncated cone 804 is fixedly connected inside the sliding column 803 facing the end of the ore pillar. The sliding column 803 and the fixed sleeve 802 are fixedly connected by a spring 805. The first motor 4, which is fixedly connected to the top of the guide slide 3, is started. The output shaft of the first motor 4 drives the transmission screw 5 located inside the guide slide 3 to rotate. Since the C-type limit frame 6 is fixedly connected to the back of the threaded transmission block 601 that is threaded to the outside of the transmission screw 5, under the rotation of the transmission screw 5, the threaded transmission block 601 drives the C-type limit frame 6 to move up and down along the guide slide 3. At the same time, the sliding parts 603 on both sides of the C-type limit frame 6 facing the guide slide 3 slide in the guide grooves 301 that are adapted to the outer sides of the guide slide 3, ensuring the smooth movement of the C-type limit frame 6. The test component 8 is adjusted to a suitable height position so as to detect different height positions of columnar components (such as mine pillars). The second motor 13, fixedly connected to the top of the C-shaped limiting frame 6, is activated. The output shaft of the second motor 13 drives the transmission gear 1301 to rotate. Because the back of the first rotating arc plate 7 is provided with back teeth 701 that mesh with the transmission gear 1301, the rotation of the transmission gear 1301 drives the first rotating arc plate 7 to rotate around the arc-shaped limiting rod 602 fixedly connected inside the C-shaped limiting frame 6. This adjusts the test components 8 at both ends of the top of the first rotating arc plate 7 to a suitable circumferential position, thereby enabling detection at different positions on the side of the columnar component (e.g., a mine pillar). The test components 8 begin to work, and the electric cylinder 801 fixedly connected inside the L-shaped frame is activated. Its telescopic end pushes the fixed sleeve 802 to move towards the surface of the mine pillar. The sliding column 803 and the truncated cone 804 move together toward the surface of the columnar component (e.g., a pillar). When the truncated cone 804 presses against the rock surface of the columnar component (e.g., a pillar), the pressure sensor 806, which is fixedly connected to one side of the inner cavity of the fixed sleeve 802, records the pressure value at this time. This pressure value reflects the pressure condition of the columnar component (e.g., a pillar) at that point and is an important data for mechanical testing. As the electric cylinder 801 continues to act, the sliding column 803 slides inside the fixed sleeve 802 and compresses the spring 805. When the sliding column 803 retracts to the end point, the sound wave transmitter trigger protrusion 807 inside the groove at the opening of the fixed sleeve 802 is triggered, generating a sound wave signal. The sound wave propagates inside the columnar component (e.g., a pillar).

[0025] Please see Figures 1-6 A pressure sensor 806 is fixedly connected to one side of the inner cavity of the fixed sleeve 802. A groove adapted to one side of the truncated cone 804 is opened at the opening of the fixed sleeve 802. A sound wave transmitter trigger protrusion 807 is provided inside the groove. A second rotating arc plate 9 is slidably connected to the bottom of the C-type limiting frame 6 near the columnar member (e.g., a mine pillar). A back tooth 701 is also provided on the back of the second rotating arc plate 9. A third motor 901 is fixedly connected to the bottom of the C-type limiting frame 6. A drive gear that meshes with the back tooth 701 of the second rotating arc plate 9 is fixedly connected to the output shaft of the third motor 901. An electric telescopic rod 10 is fixedly connected to the center of the side of the second rotating arc plate 9 facing the columnar member (e.g., a mine pillar). A one-third circular arc-shaped bonding plate 11 is fixedly connected to the telescopic end of the electric telescopic rod 10. Multiple sound wave receivers 12 are fixedly connected inside the arc-shaped bonding plate 11. When the third motor 901, which is fixedly connected to the bottom of the C-type limiting frame 6, is activated, the output shaft of the third motor 901 drives the drive gear that meshes with the back teeth 701 of the second rotating arc plate 9 to rotate. This drives the second rotating arc plate 9 to rotate, and the electric telescopic rod 10, which is fixedly connected to the center of the side of the second rotating arc plate 9 facing the columnar member (e.g., a pillar), is activated. Its telescopic end pushes the one-third circular arc-shaped bonding plate 11 to move towards the surface of the columnar member (e.g., a pillar), so that the arc-shaped bonding plate 11 adaptively fits the surface of columnar members (e.g., pillars) of different diameters. Multiple acoustic receivers 12, which are fixedly connected inside the arc-shaped bonding plate 11, start working and receive the acoustic signals excited by the test component 8 and propagated inside the pillar. The pressure data recorded by the pressure sensor 806 and the acoustic signals received by the acoustic receivers 12 are transmitted to the data processing system. The data processing system performs fusion analysis on these multi-parameter data and, through algorithms and models, comprehensively inverts the strength of the columnar member (e.g., a pillar), thereby accurately evaluating the strength of the columnar member (e.g., a pillar).

[0026] This invention also proposes a multi-parameter fusion method for strength testing of columnar components: S1. Use a drone to transport the strength testing device in a folded or retracted state to the designated starting position of the columnar member to be tested; S2. The strength testing device is fixed to the columnar member by an arc-shaped clamping plate; S3. At a fixed height, perform synchronous testing of mechanical response and acoustic signal at multiple points along the circumference of the columnar component; S4. Based on the mechanical response and acoustic signal obtained from the test, the wave velocity field image and the pressure value distributed along the circumference of the column are obtained; S5. Based on the established relationship between pressure and strength, obtain the strength values ​​distributed along the circumference of the column; S6. Based on the circumferential strength value and wave velocity field imaging, the circumferential strength value calculated in step 5 is used as the boundary constraint condition, and the wave velocity field is used as the reference for internal strength calculation to obtain the two-dimensional strength distribution of the columnar component. S7. Using the lifting function of the device, repeat steps 3-6 to obtain the intensity distribution cloud map at different heights of the columnar component (e.g., one section every 0.5 meters or 1 meter); S8. Based on the three-dimensional strength distribution of columnar members, statistical theory is used to determine the probability distribution model of the strength dataset and calculate the characteristic strength of the columnar members. The working principle and usage process of this invention are as follows: First, the electromagnetic plate carried by the drone is attracted and fixed to the magnetic side plate 101. The strength testing device can be delivered to a suitable position near the columnar component (such as a mine pillar). The device is initially fixed by the arc-shaped clamping plate of the fixing component in the fixing frame 1. The first motor 4 at the top of the guide slide 3 is started, which drives the transmission screw 5 to rotate, so that the threaded transmission block 601 drives the C-shaped limiting frame 6 to move up and down along the guide slide 3. The sliding part 603 slides smoothly in the guide groove 301. The test component 8 is adjusted to a suitable height. The second motor 13 at the top of the C-shaped limiting frame 6 is started, which drives the transmission gear 1301 to rotate, so that the first rotating arc plate 7 rotates around the arc-shaped limiting rod 602. The test component 8 is then moved to a suitable height. When component 8 is adjusted to a suitable circumferential position, electric cylinder 801 pushes fixed sleeve 802 to move. When truncated cone 804 presses against the rock surface of columnar component (e.g., mine pillar), pressure sensor 806 records pressure value. When sliding column 803 retracts to the end point, sound wave transmitter triggers protrusion 807 to generate sound wave signal that propagates in columnar component (e.g., mine pillar). The third motor 901 at the bottom of C-type limit frame 6 is activated, driving the second rotating arc plate 9 to rotate. Electric telescopic rod 10 pushes arc-shaped bonding plate 11 to bond with the surface of columnar component (e.g., mine pillar). Sound wave signal is received by multiple sound wave receivers 12. Pressure data and sound wave signal are transmitted to data processing system. After fusion analysis and algorithm model inversion, the strength of columnar component (e.g., mine pillar) is accurately evaluated.

[0027] In the above scheme, it should be noted that: the transmission and reception of sound waves in this application are existing public technologies, and can be selected from existing equipment in this field according to the actual situation. The detection device can also be equipped with an existing controller for use, and the three motors and other circuit devices inside the device can be controlled by an external remote control terminal. The sound wave receiver 12 and the pressure sensor 806 can transmit test data to the external remote control terminal wirelessly. The forward and reverse rotation of the second rotating arc plate 9 can enable the sound wave receiver 12 to circle the entire mine pillar. The battery compartment 2 is equipped with a battery to power the electrical components of the entire device.

[0028] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-parameter fusion columnar member strength testing device, comprising a fixed frame (1), characterized in that: The fixed frame (1) is provided with a fixed component inside. A battery compartment (2) is fixedly connected to one side of the fixed frame (1). A magnetic side plate (101) for drone transportation is fixedly connected to the top of one side of the fixed frame (1). A lifting component is provided at the bottom of the fixed frame (1). A test component (8) is provided on the side of the lifting component facing the columnar member.

2. The multi-parameter fusion columnar member strength testing device according to claim 1, characterized in that: The fixing component includes a robotic arm limiting frame (102) fixedly connected to both sides of the inner cavity of the fixing frame (1), and the ends of the two robotic arm limiting frames (102) are provided with arc-shaped clamping plates.

3. The multi-parameter fusion columnar component strength testing device according to claim 1, characterized in that: The lifting assembly includes a guide slide (3) fixedly connected to the bottom of one side of the fixed frame (1), a first motor (4) fixedly connected to the top of the guide slide (3), and a transmission screw (5) located inside the guide slide (3) fixedly connected to the output shaft of the first motor (4).

4. The multi-parameter fusion columnar component strength testing device according to claim 3, characterized in that: A C-type limiting bracket (6) is slidably connected to one side of the guide slide (3), and a threaded transmission block (601) threadedly connected to the back of the C-type limiting bracket (6) is fixedly connected to the outside of the transmission screw (5).

5. The multi-parameter fusion columnar component strength testing device according to claim 4, characterized in that: The C-type limiting frame (6) has sliding parts (603) fixedly connected to both sides of the side facing the guide slide (3), and the guide slide (3) has guide grooves (301) adapted to the sliding parts (603) on both sides facing outward.

6. The multi-parameter fusion columnar member strength testing device according to claim 5, characterized in that: The top of the C-shaped limiting frame (6) near the columnar member is slidably connected to a first rotating arc plate (7). An arc-shaped limiting rod (602) is fixedly connected inside the C-shaped limiting frame (6). The center of the bottom of the first rotating arc plate (7) is slidably connected to the outside of the limiting rod (602). Both ends of the top of the first rotating arc plate (7) are fixedly connected to test components (8).

7. The multi-parameter fusion columnar member strength testing device according to claim 6, characterized in that: The top of the C-type limiting frame (6) is fixedly connected to a second motor (13), and a transmission gear (1301) is fixedly connected to the output shaft of the second motor (13). The back of the first rotating arc plate (7) is provided with a back tooth (701) that meshes with the transmission gear (1301).

8. The multi-parameter fusion columnar member strength testing device according to claim 7, characterized in that: Each of the test components (8) includes an L-shaped frame fixedly connected to a first rotating arc plate (7), an electric cylinder (801) fixedly connected inside the L-shaped frame, a fixed sleeve (802) fixedly connected to the telescopic end of the electric cylinder (801), a sliding column (803) slidably connected inside the fixed sleeve (802) facing the columnar member, a truncated cone (804) fixedly connected inside the sliding column (803) facing the columnar member, and the sliding column (803) and the fixed sleeve (802) are fixedly connected by a spring (805).

9. The multi-parameter fusion columnar component strength testing device according to claim 8, characterized in that: A pressure sensor (806) is fixedly connected to one side of the inner cavity of the fixed sleeve (802). A groove adapted to one side of the truncated cone (804) is opened at the opening of the fixed sleeve (802). A sound wave transmitter trigger protrusion (807) is provided inside the groove. A second rotating arc plate (9) is slidably connected to the bottom of the C-shaped limit frame (6) near the columnar member. A back tooth (701) is also provided on the back of the second rotating arc plate (9). A third motor (901) is fixedly connected to the bottom of the C-shaped limit frame (6). A drive gear that meshes with the back tooth (701) of the second rotating arc plate (9) is fixedly connected to the output shaft of the third motor (901). An electric telescopic rod (10) is fixedly connected to the center of the side of the second rotating arc plate (9) facing the columnar member. A one-third circular arc-shaped fitting plate (11) is fixedly connected to the telescopic end of the electric telescopic rod (10). Multiple sound wave receivers (12) are fixedly connected inside the arc-shaped fitting plate (11).

10. The multi-parameter fusion columnar member strength testing device according to claims 1-9, the present invention also proposes a multi-parameter fusion columnar member strength testing method, comprising the following steps: S1. Use a drone to transport the strength testing device in a folded or retracted state to the designated starting position of the columnar member to be tested; S2. The strength testing device is fixed to the columnar member by an arc-shaped clamping plate; S3. At a fixed height, perform synchronous testing of mechanical response and acoustic signal at multiple points along the circumference of the columnar component; S4. Based on the acoustic signal and mechanical response obtained from the test, the wave velocity field image and the pressure value distributed along the circumference of the column are obtained; S5. Based on the established relationship between pressure and strength, obtain the strength values ​​distributed along the circumference of the column; S6. Based on the circumferential strength value and wave velocity field imaging, the circumferential strength value calculated in step 5 is used as the boundary constraint condition, and the wave velocity field is used as the reference for internal strength calculation to obtain the two-dimensional strength distribution of the columnar component. S7. Using the lifting function of the device, repeat steps 3-6 to obtain the intensity distribution cloud map at different heights of the columnar component (e.g., one section every 0.5 meters or 1 meter); S8. Based on the three-dimensional strength distribution of columnar members, statistical theory is used to determine the probability distribution model of the strength dataset and calculate the characteristic strength of columnar members.

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