Multifunctional nondestructive testing device suitable for rock damage

Abstract

The multifunctional nondestructive testing device comprises a machine body, a handle is arranged on one side of the machine body, a top plate of the machine body is designed to be capable of being opened and closed, traceless adsorption supports are arranged on the two sides of the bottom of the machine body, a power source device is arranged in the machine body, and an impact device is arranged in the center of the interior of the machine body. The impact device penetrates through the bottom plate and extends out of the machine body, the bottom of the impact device is flush with the bottom of the traceless adsorption support, the impact device is connected with the output end of a motor, the input end of the motor is connected with a power source device, sensors are arranged on the two sides of the impact device, and the sensors are connected with an amplifier through connecting wires. The mechanical impact device is adopted to control the impact hammer to beat downwards, so that the detection speed is greatly improved, a large amount of data can be measured, and the rock defect condition of a to-be-detected surface can be completely measured.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic test model devices, and particularly relates to a multifunctional nondestructive testing device suitable for rock damage. Background Art

[0002] The technical background of the application of non-destructive testing technology on rocks can be traced back to the demand for quality testing of rocks during production, construction and use. As a natural material, the quality and performance of rocks are affected by many factors, such as composition, structure, environmental conditions, etc. In order to ensure the quality and reliability of rock products, non-destructive testing technology is introduced into rock testing.

[0003] Nondestructive testing technology is a non-destructive testing method that uses physical or chemical principles to detect internal defects, structural changes and performance indicators without damaging the object being tested. The application of nondestructive testing technology on rocks can accurately detect the internal structure, mechanical properties and chemical composition of rocks, thereby evaluating the quality and reliability of rocks. In addition to quality testing during the production and construction of rock products, nondestructive testing technology is also widely used in rock resource exploration, geological disaster warning and environmental protection. For example, in the field of geological disaster warning, nondestructive testing technology can be used to monitor the mechanical properties, crack distribution and groundwater conditions of rocks in real time, providing data support for the prevention and response of geological disasters.

[0004] Therefore, there is an urgent need for a multifunctional nondestructive testing device suitable for rock damage to solve the above problems. Summary of the invention

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a multifunctional non-destructive testing device suitable for rock damage to solve the problems raised in the background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme: a multifunctional nondestructive testing device suitable for rock damage, comprising a fuselage, a handle on one side of the fuselage, a top plate of the fuselage being designed to be openable and closable, traceless adsorption brackets being arranged on both sides of the bottom of the fuselage, a power supply device being arranged inside the fuselage, an impact device being arranged at the center of the interior of the fuselage, the impact device extending through the bottom plate to the outside of the fuselage, the bottom of the impact device being flush with the bottom of the traceless adsorption bracket, the impact device being connected to the output end of a motor, the input end of the motor being connected to the power supply device, sensors being arranged on both sides of the impact device, and the sensors being connected to an amplifier through connecting lines.

[0007] Preferably, the traceless adsorption brackets are connected by pipelines, an air extraction device is arranged at the center of the pipeline, and a plurality of suction cups are arranged at the bottom of the traceless adsorption bracket.

[0008] Preferably, the amplifier is arranged on the inner bottom plate of the fuselage, and a plurality of buttons are arranged on the amplifier.

[0009] Preferably, the top plate of the impact device is provided with a hole for a driving connecting rod to pass through, one end of the driving connecting rod is connected to the output end of the motor through a track driving mechanism, and the other end of the driving connecting rod is connected to the top end of an impact hammer provided in the inner cavity of the impact device.

[0010] Preferably, a guide rail is provided on the inner wall of the impact device, and a slide rail is provided on the hammer body of the impact hammer. The slide rail can be embedded in the guide rail and move up and down.

[0011] Preferably, one end of the vertical rod in the driving connecting rod is connected to the impact hammer, and the other end of the vertical rod is provided with a connecting bolt which is slidably connected to a groove provided in the middle of the transverse rod.

[0012] Preferably, the turntable in the crawler drive mechanism is connected to the right side of the transverse rod, and the turntable is connected to the output end of the motor located inside the fuselage through the crawler.

[0013] Preferably, the power supply device is a power storage type charging power supply.

[0014] Preferably, the handle is designed to be arc-shaped and is fixedly arranged on the outer side wall of the fuselage.

[0015] The utility model has the following beneficial effects:

[0016] 1. The design of the utility model is very simple and practical, and the components are connected in a detachable manner, which reduces the threshold and cost of the experiment.

[0017] 2. The utility model adopts automatic detection to control the movement of the impact hammer to impact the surface to be tested. The generated impact signal is amplified by the amplifier and then received by the sensor, thereby reducing the error of manual knocking.

[0018] 3. The utility model adopts a traceless adsorption bracket, and the air is pumped by a vacuum pump, so that the entire device can be firmly fixed on the surface to be tested, thereby improving the safety and effectiveness of the experiment.

[0019] 4. The utility model can perform nondestructive testing in various complex environments. The portability and adaptability of this device make it very convenient to use in various outdoor environments. It can perform tasks such as geological surveys, rock classification, and geological disaster warnings in natural environments.

[0020] 5. The utility model adopts a non-destructive detection method during the detection process, which can obtain the internal information of concrete without destroying the rock wall. It can be used to study scientific issues such as the physical properties, geological structure and evolutionary history of rocks, and provides important technical support for fields such as geology, geophysics and environmental science. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional rear end structure of the utility model;

[0023] Figure 3 This is a top view of the internal structure of the utility model;

[0024] Figure 4 This is a schematic diagram of the suction cup structure of the utility model;

[0025] Figure 5 This is a schematic diagram of the connection structure between the impact device and the motor in the utility model;

[0026] Figure 6 It is a schematic diagram of the connection structure between the impact hammer and the driving connecting rod in the utility model. DETAILED DESCRIPTION

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] See also Figures 1 to 6 A multifunctional nondestructive testing device suitable for rock damage includes a body 1, a handle 2 is provided on one side of the body 1, the top plate of the body 1 is designed to be openable and closable, traceless adsorption brackets 3 are arranged on both sides of the bottom of the body 1, a power supply device 4 is arranged inside the body 1, an impact device 6 is arranged at the center of the body 1, the impact device 6 extends through the bottom plate to the outside of the body 1, the bottom of the impact device 6 is flush with the bottom of the traceless adsorption bracket 3, the impact device 6 is connected to the output end of the motor 9, the input end of the motor 9 is connected to the power supply device 4, sensors 5 are arranged on both sides of the impact device 6, and the sensor 5 is connected to the amplifier 7 through a connecting line. The device is provided with seamless adsorption brackets on both sides of the fuselage, and an impact device and a sensor are arranged at the bottom of the fuselage. When the impact hammer in the impact device collides with the surface to be tested, the released sound wave is received by the sensor and amplified by the amplifier. A power supply device is contained inside. There are many suction cups at the bottom of the seamless adsorption bracket at the bottom of the fuselage. The seamless adsorption brackets on both sides are connected by pipes and are evacuated by a vacuum pump. When performing the detection operation, the air in the suction cups is evacuated and adsorbed on the surface to be tested.

[0029] Preferably, the traceless adsorption brackets 3 are connected by a pipe 301, a suction device 303 is provided at the center of the pipe 301, and a plurality of suction cups 302 are provided at the bottom of the traceless adsorption bracket 3. This design can stably fix the device on the object to be tested, and the suction device sucks air through the pipe to adsorb the suction cup on the surface to be tested, which will not cause damage to the object to be tested and can also firmly fix the device.

[0030] Preferably, the amplifier 7 is arranged on the bottom plate inside the fuselage 1, and a plurality of buttons 701 are arranged on the amplifier 7. This design reasonably utilizes the internal space of the fuselage, amplifies the signal received by the sensor through the amplifier, and can flexibly adjust the signal amplification strength according to the detection environment through the buttons.

[0031] Preferably, the top plate of the impact device 6 is provided with a hole for the driving connecting rod 8 to pass through, one end of the driving connecting rod 8 is connected to the output end of the motor 9 through the track driving mechanism 10, and the other end of the driving connecting rod 8 is connected to the top of the impact hammer 601 provided in the inner cavity of the impact device 6. This design enables the impact device to pass the mechanical linkage detection, greatly improving the service life of the device.

[0032] Preferably, the inner wall of the impact device 6 is provided with a guide rail 603, and the hammer body of the impact hammer 601 is provided with a slide rail 602, and the slide rail 602 can be embedded in the guide rail 603 and move up and down. The impact hammer can move up and down in the cylinder along the guide rail to perform vertical striking.

[0033] Preferably, one end of the vertical rod 801 in the driving connecting rod 8 is connected to the impact hammer 601, and the other end of the vertical rod 801 is provided with a connecting bolt that is slidably connected to the groove provided in the middle of the horizontal rod 802. In this design, when the horizontal rod moves left and right, the vertical rod can move downward to drive the impact hammer to strike the surface to be tested.

[0034] Preferably, the turntable 1001 in the crawler drive mechanism 10 is connected to the right side of the horizontal rod 802, and the turntable 1001 is connected to the output end of the motor 9 located inside the fuselage through the crawler 1002. The motor starts to run and drives the crawler to rotate, the crawler rotation drives the turntable to rotate, and the turntable rotation drives the horizontal rod to move left and right. At this time, the vertical rod can move downward to drive the impact hammer to knock the surface to be tested.

[0035] Preferably, the power supply device 4 is a storage type charging power supply. This design can overcome the difficulty of not being able to find an external power supply in a wild environment, thereby greatly improving the practicality of the device.

[0036] Preferably, the handle 2 is designed in an arc shape and is fixedly arranged on the outer side of the side wall of the body 1. This design fits the palm better and is convenient for moving the device.

[0037] The working principle of this embodiment is as follows:

[0038] The utility model arranges measuring points on the surface to be tested. Before performing nondestructive testing, it is necessary to assemble the entire instrument first and adjust the length of the sensor and the impact hammer to ensure that they can correctly sense and generate signals. Then, the air is pumped through the vacuum device and the device is fixed to the rock wall through the suction cup. After the device is fixed, the device is started. At this time, the impact device starts to work, generating elastic waves, which are received by the sensor and amplified by the amplifier and converted into electrical signals, and the data is stored. In this process, data can be measured multiple times, and the data can be parsed and analyzed by a computer. Computer analysis can be used to analyze whether there are defects inside the object to be tested, which brings convenience to subsequent work.

[0039] The quality of the structure is judged based on the frequency and acoustic time parameters. The theoretical calculation formula for elastic properties and sound speed is as follows:

[0040]

[0041] Where: is the wave speed, m / s; ρ is the density, kg / ; μ is Poisson's ratio; E is elastic modulus, Pa. The speed of sound is proportional to the square root of the elastic modulus. If the elastic modulus is high, the strength of the object being measured is also high.

[0042] The impact echo acoustic method is based on the difference in the propagation speed of sound waves in different media and the reflection, refraction, transmission and other phenomena that occur when sound waves encounter the interface of the medium. Specifically, when an impact or vibration is applied to the surface of the material being tested, a sound wave signal is generated. These sound wave signals propagate inside the material, and when they encounter the interface or defects inside the material, they are reflected or scattered. These reflected or scattered sound wave signals, i.e., echo signals, are captured by a dedicated pickup. By analyzing the echo signals, information about the internal structure of the material can be obtained. The impact echo acoustic method achieves non-destructive testing of the internal structure and defects of the material by measuring and analyzing the propagation and reflection of sound waves inside the material. This method has the advantages of non-contact, fast and accurate, so it has been widely used in the field of non-destructive testing.

[0043] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A multifunctional nondestructive testing device for rock damage, comprising a body (1), characterized in that: A handle (2) is provided on one side of the body (1); the top plate of the body (1) is designed to be openable and closable; traceless adsorption brackets (3) are provided on both sides of the bottom of the body (1); a power supply device (4) is provided inside the body (1); an impact device (6) is provided at the center of the body (1); the impact device (6) extends through the bottom plate to the outside of the body (1); the bottom of the impact device (6) is flush with the bottom of the traceless adsorption bracket (3); the impact device (6) is connected to the output end of the motor (9); the input end of the motor (9) is connected to the power supply device (4); sensors (5) are provided on both sides of the impact device (6); and the sensors (5) are connected to the amplifier (7) via a connecting line.

2. A multifunctional nondestructive testing device for rock damage according to claim 1, characterized in that: The traceless adsorption brackets (3) are connected to each other via a pipe (301), an air extraction device (303) is provided at the center of the pipe (301), and a plurality of suction cups (302) are provided at the bottom of the traceless adsorption bracket (3).

3. A multifunctional nondestructive testing device for rock damage according to claim 1, characterized in that: The amplifier (7) is arranged on the inner bottom plate of the body (1), and a plurality of buttons (701) are arranged on the amplifier (7).

4. A multifunctional nondestructive testing device for rock damage according to claim 1, characterized in that: The top plate of the impact device (6) is provided with a hole for a driving connecting rod (8) to pass through; one end of the driving connecting rod (8) is connected to an output end of a motor (9) via a crawler drive mechanism (10); the other end of the driving connecting rod (8) is connected to a top end of an impact hammer (601) provided in the inner cavity of the impact device (6).

5. A multifunctional nondestructive testing device for rock damage according to claim 4, characterized in that: The inner wall of the impact device (6) is provided with a guide rail (603), and the hammer body of the impact hammer (601) is provided with a slide rail (602), and the slide rail (602) can be embedded in the guide rail (603) and move up and down.

6. A multifunctional nondestructive testing device for rock damage according to claim 4, characterized in that: One end of the vertical rod (801) in the driving connecting rod (8) is connected to the impact hammer (601), and the other end of the vertical rod (801) is provided with a connecting bolt which is slidably connected to a groove provided in the middle of the transverse rod (802).

7. A multifunctional nondestructive testing device for rock damage according to claim 4, characterized in that: The turntable (1001) in the crawler drive mechanism (10) is connected to the right side of the transverse rod (802), and the turntable (1001) is connected to the output end of the motor (9) located inside the fuselage through the crawler (1002).

8. The multifunctional nondestructive testing device for rock damage according to claim 1, characterized in that: The power supply device (4) is a power storage type charging power supply.

9. The multifunctional nondestructive testing device for rock damage according to claim 1, characterized in that: The handle (2) is designed to be arc-shaped and is fixedly arranged on the outside of the side wall of the machine body (1).

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