Detection structure, detection array and electrical equipment curved surface detection device

Abstract

The utility model discloses a detection structure, a detection array and an electrical equipment curved surface detection device, particularly relates to the technical field of curved surface detection, and is technically characterized in that the detection structure comprises a detection sensor, a rotating unit, a telescopic unit and a plurality of elastic units; one end of the rotating unit is arranged on the bottom surface of the detection sensor, and the other end of the rotating unit is arranged at one end of the telescopic unit; one end of each of the plurality of elastic units is arranged at the edge part of the bottom surface of the detection sensor, the other end of each of the plurality of elastic units is arranged on the outer side wall of the telescopic unit, and the plurality of elastic units are symmetrically arranged along the central axis of the telescopic unit; the detection array comprises a plurality of detection structures, and the plurality of detection structures are arranged in an array; the detection device comprises a shell, a placement groove is formed in the top of the shell, a detection array is placed in the placement groove, a control unit is arranged at the bottom of the shell, and the detection array is connected with the control unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to a curved surface detection technical field, concretely relates to a detection structure, detection array and power equipment curved surface detection device. BACKGROUND

[0002] In the process of power equipment acceptance and operation maintenance, ultrasonic detection technology is widely used in the detection of hidden defects such as metal crack, welding defect and insulation layer bubble because of its non-destructive and high sensitivity. Traditional ultrasonic detection usually adopts rigid probe, and the probe is contacted with the surface of the measured object by manual operation, and the internal defects are judged by the propagation characteristics of ultrasonic waves in the medium. However, the power grid equipment (such as GIS equipment shell, transformer weld, cable joint, etc.) often has complex curved surface structure, which leads to the following technical bottlenecks of traditional detection method:

[0003] (1) Poor coupling effect: rigid probe is difficult to adapt to irregular changes of curved surface, and air gap is easy to occur between probe and detection surface, which leads to serious attenuation of ultrasonic wave energy and directly affects the detection rate of defects.

[0004] (2) Low detection efficiency: the operator needs to repeatedly adjust the probe angle and pressure to find the best coupling position, especially in large-scale material acceptance, manual detection takes a long time, and the detection result is greatly affected by the operator's experience.

[0005] (3) Limitations of existing solutions: the current improvement methods for curved surface detection mainly include water immersion method and flexible array probe technology. Water immersion method needs to use coupling agent, which is difficult to apply to on-site rapid detection; and flexible array probe has high cost and poor mechanical durability, which is difficult to meet the long-term repeated use demand of power industry.

[0006] Therefore, the embodiment provides a detection structure, a detection array and a power equipment curved surface detection device to solve the above-mentioned related problems. CONTENT OF THE UTILITY MODEL

[0007] The utility model wants to solve the technical problem that the rigid probe in the prior art is difficult to apply to curved surface equipment detection, aims at providing a detection structure, detection array and power equipment curved surface detection device, through the telescopic unit in the detection structure, after the detection sensor is contacted with the curved surface, the detection sensor can be displaced up and down, through the cooperation of multiple elastic units and rotating units in the detection structure, the rotation and deviation of the monitoring sensor top surface in different angles and different directions are facilitated to realize the adhesion with the power equipment curved surface, multiple detection structures constitute a detection array, and the detection array constitutes a power equipment curved surface detection device to realize the self-adaptive adhesion detection on the power equipment curved surface surface, thereby solving the technical problem that the rigid probe in the prior art is difficult to apply to curved surface equipment detection.

[0008] The utility model discloses a technical scheme as follows:

[0009] The utility model provides a kind of detection structure, and detection structure includes detection sensor, rotating unit, telescopic unit and multiple elastic units;The bottom surface of detection sensor is equipped with one end of rotating unit, and the one end of telescopic unit is equipped with another end of rotating unit, and detection sensor, rotating unit and telescopic unit are coaxially arranged;

[0010] The edge portion of the bottom surface of detection sensor is respectively arranged one end of multiple elastic units, and the outer lateral wall of telescopic unit is respectively arranged another end of multiple elastic units, and multiple elastic units are symmetrically arranged along the central axis of telescopic unit.

[0011] Further, multiple elastic units all include support rod and elastic piece, one end of support rod is movably connected to the outer lateral wall of telescopic unit, the other end of support rod is fixedly installed in one end of elastic piece, and the other end of elastic piece is equipped with the edge portion of the bottom surface of detection sensor.

[0012] Further, the number of elastic units is four.

[0013] Further, the rotating unit adopts universal shaft structure.

[0014] Further, the telescopic unit adopts spring needle.

[0015] Further, the elastic piece adopts spring structure.

[0016] The utility model also provides a kind of detection array, and detection array includes multiple above-mentioned any one detection structure, and multiple detection structures are arranged in array.

[0017] Further, the number of detection structures is nine, and nine detection structures are arranged in 3x3 array.

[0018] This utility model also provides a power equipment curved surface detection device. The detection device includes a housing, the top of which is provided with a placement groove, in which the detection array described in any one of the above-mentioned claims is placed. The bottom of the housing is provided with a control unit, and the detection array is connected to the control unit. The top surface of the detection array is higher than the top surface of the housing.

[0019] Furthermore, an elastic ring is provided on the top surface of the housing, the elastic ring surrounds the edge of the housing, and the top surface of the detection array is flush with the top surface of the elastic ring.

[0020] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0021] In this invention, the telescopic unit in the detection structure facilitates the vertical displacement of the detection sensor after it contacts the curved surface. The cooperation of multiple elastic and rotating units in the detection structure enables the top surface of the monitoring sensor to rotate and shift at different angles and orientations, achieving proper contact with the curved surface of the power equipment. Multiple detection structures form a detection array, which in turn constitutes a curved surface detection device for power equipment, enabling adaptive contact detection of the curved surface of the power equipment. This solves the technical problem of rigid probes being unsuitable for detecting curved equipment in existing technologies. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort. In the drawings:

[0023] Figure 1 This is a schematic diagram of a detection structure in this embodiment;

[0024] Figure 2 This is a schematic diagram of the structure of a detection matrix in this embodiment;

[0025] Figure 3 This is a schematic diagram of the structure of a power equipment curved surface detection device in this embodiment;

[0026] Figure 4 This is a structural cross-sectional view of a power equipment curved surface detection device in this embodiment.

[0027] The attached diagram shows the markings and corresponding component names:

[0028] 10. Detection structure; 20. Detection array; 1. Detection sensor; 2. Rotation unit; 3. Telescopic unit; 4. Elastic unit; 401. Support rod; 402. Elastic element; 5. Housing; 6. Placement slot; 7. Control unit; 8. Elastic ring. Detailed Implementation

[0029] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0030] In this disclosure, unless otherwise stated, the use of terms such as "first," "second," etc., to describe various elements is not intended to limit the positional, temporal, or importance relationships of these elements; such terms are merely used to distinguish one element from another. In some examples, the first element and the second element may refer to the same instance of that element, while in other cases, based on the context, they may refer to different instances.

[0031] The terminology used in the description of the various examples in this disclosure is for the purpose of describing particular examples only and is not intended to be limiting. Unless the context explicitly indicates otherwise, an element may be one or more unless the number of elements is specifically limited. Furthermore, the term "and / or" as used in this disclosure covers any one of the listed items and all possible combinations thereof.

[0032] Example

[0033] In this embodiment, a detection structure 10 is provided, see [link to previous embodiment]. Figure 1 , Figure 1 A schematic diagram of a detection structure 10 is shown, wherein the detection structure 10 includes a detection sensor 1, a rotating unit 2, a telescopic unit 3, and multiple elastic units 4; one end of the rotating unit 2 is fixedly installed on the bottom surface of the detection sensor 1, and the other end of the rotating unit 2 is movably installed on one end of the telescopic unit 3; the detection sensor 1, the rotating unit 2, and the telescopic unit 3 are coaxially arranged.

[0034] One end of each of the multiple elastic units 4 is respectively disposed on the bottom edge of the detection sensor 1, and the other end of each of the multiple elastic units 4 is respectively disposed on the outer side wall of the telescopic unit 3, and the multiple elastic units 4 are symmetrically arranged along the central axis of the telescopic unit 3.

[0035] It should be noted that in the embodiment, the detection sensor 1 is an ultrasonic sensor, and in other embodiments, it can also be set to other sensors according to actual needs, and here is not limited too much.

[0036] Specifically, in the embodiment, by the telescopic unit 3, the detection sensor 1 can be displaced up and down after being in contact with the curved surface; by the cooperation of the plurality of elastic units 4 and the rotating unit 2, the rotation and deviation of the top surface of the detection sensor at different angles and different directions are facilitated, so that the detection sensor is attached to the curved surface of the equipment.

[0037] As a possible implementation, the plurality of elastic units 4 each includes a support rod 401 and an elastic member 402, one end of the support rod 401 is movably connected to the outer side wall of the telescopic unit 3, the other end of the support rod 401 is fixedly installed at one end of the elastic member 402, and the other end of the elastic member 402 is arranged at the bottom edge of the detection sensor 1.

[0038] It should be noted that in the embodiment, one end of the support rod 401 is movably connected to the outer surface of the telescopic unit 3 through a rotating hinge, which is a conventional technical means in the art, and will not be described here. At the same time, when the detection structure 10 is in an idle state, the telescopic rod is arranged at a certain angle with the telescopic unit 3 and the elastic member 402, so that the elastic member 402 is parallel to the telescopic rod.

[0039] As a possible implementation, the number of elastic units 4 is four.

[0040] It should be noted that in the embodiment, the number of elastic units 4 is four, and in other embodiments, it can also be set to other numbers according to actual needs, and here is not limited too much.

[0041] As a possible implementation, the rotating unit 2 adopts a universal shaft structure.

[0042] It should be noted that in the embodiment, the rotating unit 2 adopts a universal shaft structure, and in other embodiments, it can also adopt a universal ball head structure, or other structures that can realize rotation at different angles, and will not be described here. By adopting the universal shaft structure, the detection sensor 1 can be freely deflected within ±15°.

[0043] As a possible implementation, the telescopic unit 3 adopts a spring needle.

[0044] It should be noted that in the embodiment, the telescopic unit 3 adopts a spring needle with a stroke of 5mm, and in other embodiments, it can also adopt a spring needle with a stroke of 6-8mm or other stroke length, and will not be described here. Limited too much.

[0045] As a possible implementation, the elastic member 402 adopts a spring structure.

[0046] It should be noted that in the present embodiment, the elastic member 402 adopts a spring structure with a stiffness coefficient of 5 N / mm, and in other embodiments, a spring structure with a stiffness coefficient of 6-8 N / mm or other stiffness coefficient according to actual needs can also be adopted, which will not be described in detail here.

[0047] Working principle: Since the detection sensor 1 contacts the curved surface and is pressed by the staff, the downward pressure of different positions on the surface of the detection sensor 1 is not the same, so the four elastic units 4 and the rotating unit 2 drive the detection sensor 1 to deflect according to the different downward pressure, so that the detection sensor 1 is attached to the curved surface.

[0048] In the present embodiment, the present embodiment also provides a detection array 20, see Figure 2 , Figure 2 A structural schematic diagram of a detection array 20 is shown, wherein the detection array 20 includes a plurality of any one of the above detection structures 10, and the plurality of detection structures 10 are arranged in an array.

[0049] As a possible implementation, the number of detection structures 10 is nine, and the nine detection structures 10 are arranged in a 3x3 array.

[0050] It should be noted that in the present embodiment, nine detection structures 10 are used to form a 3x3 detection array 20, and in other embodiments, ten, twelve, sixteen or other numbers of detection structures 10 that can form an array can also be used, and a 2x5, 3x4, 4x4 detection array 20 can also be set, which will not be limited here. At the same time, the spacing between each detection structure 10 is determined according to actual needs, which will not be limited here.

[0051] Specifically, in the present embodiment, a detection array 20 is formed by nine detection structures 10, which can detect multi-sensor data to achieve more accurate detection of the surface of the device.

[0052] In the present embodiment, the present embodiment also provides a power equipment curved surface detection device, see Figure 3 and Figure 4 , Figure 3 A structural schematic diagram of a power equipment curved surface detection device is shown, Figure 4 A structural cross-sectional view of a power equipment curved surface detection device is shown, wherein the detection device includes a housing 5, the top of the housing 5 is opened to form a placing groove 6, the placing groove 6 is placed with the above any one of the detection array 20, the bottom of the housing 5 is fixedly installed with a control unit 7, the detection array 20 is connected with the control unit 7, and the top surface of the detection array 20 is higher than the top surface of the housing 5.

[0053] It should be noted that in the present embodiment, the control unit 7 comprises a data acquisition chip and a control processing chip, the control unit 7 is connected with each detection sensor 1 in the detection array 20 through a wire, and the control unit 7 is connected with the upper computer through a wire, the upper computer can be a computer device or a mobile terminal, which is a conventional technical means in the field, and will not be described here in more detail; at the same time, in the present embodiment, the top surface of the detection array 20 is 5mm higher than the top surface of the shell 5, and in other embodiments, it can also be set to 6mm, 7mm, 8mm or other heights, which will not be limited here; at the same time, the shell 5 adopts a cylindrical aviation aluminum alloy frame.

[0054] As a possible implementation, the top surface of the shell 5 is provided with an elastic ring 8, the elastic ring 8 encloses the edge part of the shell 5, and the top surface of the detection array 20 is flush with the top surface of the elastic ring 8.

[0055] It should be noted that in the present embodiment, the elastic ring 8 adopts a rubber ring, and the height of the rubber ring is 5mm, and in other embodiments, it can also be set to 6mm, 7mm, 8mm or other heights, which will not be limited here; at the same time, the top surface of the rubber ring is provided with a polyurethane coating to enhance the wear resistance of the rubber ring.

[0056] Working principle: when it is necessary to detect the curved surface of the power equipment, first connect the detection device with the upper computer, then place the elastic ring 8 at the detection position and press it down; during the pressing process, each detection structure 10 of the detection matrix will automatically adjust the angle of the detection sensor 1 according to the curvature of the contacted curved surface position, so that each detection structure 10 is attached to the curved surface, so as to collect the defects of the curved surface and upload them to the upper computer for processing.

[0057] The above specific embodiments further illustrate the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above description is only a specific embodiment of the present application, and is not used to limit the protection scope of the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A detection structure, characterized in that, The detection structure includes a detection sensor, a rotating unit, a telescopic unit, and multiple elastic units; one end of the rotating unit is located on the bottom surface of the detection sensor, and the other end of the rotating unit is located at one end of the telescopic unit; the detection sensor, the rotating unit, and the telescopic unit are coaxially arranged. One end of each of the multiple elastic units is disposed at the bottom edge of the detection sensor, and the other end of each of the multiple elastic units is disposed on the outer side wall of the telescopic unit, and the multiple elastic units are symmetrically arranged along the central axis of the telescopic unit.

2. The detection structure according to claim 1, characterized in that, Each of the multiple elastic units includes a support rod and an elastic element. One end of the support rod is movably connected to the outer wall of the telescopic unit, and the other end of the support rod is fixedly installed on one end of the elastic element. The other end of the elastic element is located at the bottom edge of the detection sensor.

3. The detection structure according to claim 1, characterized in that, The number of elastic units is four.

4. The detection structure according to claim 1, characterized in that, The rotating unit adopts a universal joint structure.

5. The detection structure according to claim 1, characterized in that, The telescopic unit uses a spring-loaded pin.

6. The detection structure according to claim 2, characterized in that, The elastic element adopts a spring structure.

7. A detection array, characterized in that, The detection array includes a plurality of detection structures as described in any one of claims 1-6, wherein the plurality of detection structures are arranged in an array.

8. A detection array according to claim 7, characterized in that, The number of detection structures is nine, and the nine detection structures are arranged in a 3×3 array.

9. A device for detecting curved surfaces of power equipment, characterized in that, The detection device includes a housing, the top of which is provided with a placement slot, in which a detection array as described in any one of claims 7-8 is placed, the bottom of which is provided with a control unit, the detection array being connected to the control unit, and the top surface of the detection array being higher than the top surface of the housing.

10. A power equipment curved surface inspection device according to claim 9, characterized in that, An elastic ring is provided on the top surface of the housing, and the elastic ring surrounds the edge of the housing. The top surface of the detection array is flush with the top surface of the elastic ring.

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