GIS basin-type insulator automatic ultrasonic detection device

Abstract

The invention belongs to the technical field of power transmission and transformation insulation equipment, and relates to an automatic ultrasonic detection device for a GIS basin-type insulator. Comprising a first table body, a rotating device, an edge detection device and a basin body detection device, the rotating device comprises a second table body, a first rotating shaft, a first stepping motor and a rotating platform, and is used for placing a to-be-detected basin-type insulator and driving the to-be-detected basin-type insulator to rotate; the edge detection device comprises a first fixed bracket, a first probe clamp and a first ultrasonic detection probe, and is used for detecting an edge area of the basin-type insulator to be detected; the basin body detection device comprises a second fixed bracket, a second probe clamp and a second ultrasonic detection probe, and is used for detecting a basin body area of the basin-type insulator to be detected; according to the device provided by the invention, automatic full-coverage detection of the GIS basin-type insulator is realized, missing detection caused by manual detection is avoided, and the detection precision and the detection efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission and transformation insulation equipment, in particular to an automatic ultrasonic detection device for GIS pot-type insulators. Background Art

[0002] Pan insulators are important components in gas insulated switchgear (GIS), and are mostly cast from a composite material consisting of AI2O3 particles and epoxy resin. During the manufacturing, transportation, installation and use process, pan insulators may have air gap defects such as flags and cracks, which will gradually expand and eventually lead to equipment insulation breakdown, causing equipment failure and causing huge losses. Therefore, it is necessary to regularly perform ultrasonic testing on pan insulators in GIS equipment to detect air gap defects in pan insulators and repair them to ensure the safe operation of GIS equipment.

[0003] In the prior art, ultrasonic testing of pot-type insulators is manual testing. The operator holds an ultrasonic testing probe and detects the edge area and pot body area of ​​the pot-type insulator. During the detection process, the ultrasonic testing probe contacts the surface of the pot-type insulator and uses the ultrasonic testing probe to emit ultrasonic signals. The ultrasonic signals propagate through the material of the insulator. When encountering discontinuities or defects in the material, the ultrasonic waves will be reflected or scattered. The probe receives these reflected waves or scattered waves to determine whether there are defects in the internal structure of the insulator. However, manual testing depends on the experience and skills of the operator. Different operators have different control over the positioning of the probe and the contact between the probe and the pot-type insulator. If the positioning of the probe is inaccurate or the contact between the probe and the pot-type insulator is poor, it will lead to missed detection, thereby reducing the accuracy of the detection results. In addition, manual testing not only consumes human resources, but also has relatively low detection efficiency.

[0004] In summary, how to design an automatic ultrasonic detection device for pot-type insulators to overcome missed detection and false detection caused by manual detection and improve detection efficiency is a problem that needs to be solved urgently. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problems of low detection result accuracy and low detection efficiency of the ultrasonic detection method for pot-type insulators in the prior art.

[0006] In order to solve the above technical problems, the present invention provides an automatic ultrasonic detection device for GIS pot-type insulators, comprising:

[0007] The first table body has a first reserved hole on its table top;

[0008] The rotating device specifically comprises:

[0009] A second table body is arranged below the first table body, and a second reserved hole is arranged on the table top;

[0010] The second reserved hole is aligned with the center of the first reserved hole;

[0011] A first rotating shaft, passing through the second reserved hole and the first reserved hole;

[0012] A first stepper motor is fixedly mounted on the lower surface of the table top of the second table body and is used to drive the first rotating shaft to rotate;

[0013] A rotating platform, arranged above the first reserved hole and connected to the first rotating shaft, used for placing the pot-type insulator to be inspected on the upper surface of the rotating platform and driving the pot-type insulator to be inspected to rotate when the first rotating shaft rotates;

[0014] The edge detection device specifically comprises:

[0015] A first fixing bracket, the bottom of which is arranged on the upper surface of the table top of the first table body;

[0016] A first probe fixture is arranged on the side wall of the first fixing bracket and is provided with a first ultrasonic detection probe, and is used to detect the edge area of ​​the pot-type insulator to be detected by using the first ultrasonic detection probe;

[0017] The basin detection device specifically comprises:

[0018] A second fixing bracket, the bottom of which is arranged on the upper surface of the table top of the first table body;

[0019] The second probe fixture is arranged on the side wall of the second fixing bracket and is provided with a second ultrasonic detection probe, and is used for detecting the basin body area of ​​the basin-type insulator to be detected by using the second ultrasonic detection probe.

[0020] Preferably, a first gear is sleeved on the first rotating shaft;

[0021] The first stepper motor is connected to a second rotating shaft, and the second rotating shaft passes through a third reserved hole arranged on the table top of the second table body;

[0022] The second rotating shaft is sleeved with a second gear meshing with the first gear at a position above the third reserved hole; when the first stepper motor is started, the second rotating shaft drives the second gear to drive the first gear to rotate, thereby driving the first rotating shaft to rotate.

[0023] Preferably, the basin detection device further comprises:

[0024] The first bearing and the second bearing are respectively arranged at upper and lower ends of the second fixing bracket close to the pot-type insulator to be tested through the first bearing seat and the second bearing seat;

[0025] A lead screw passes through the first bearing and the second bearing; the angle between the lead screw and the plane where the upper end surface of the pot-type insulator to be tested is located is equal to the angle between the side surface of the pot body area of ​​the pot-type insulator to be tested and the plane where the upper end surface of the pot-type insulator to be tested is located;

[0026] A lead screw nut, sleeved on the lead screw and connected to the second probe fixture;

[0027] The second stepper motor is connected to one end of the lead screw through a coupling, and is used to drive the lead screw to rotate, so that the lead screw nut drives the second probe fixture to move along the lead screw, thereby causing the second ultrasonic detection probe clamped by the second probe fixture to move axially along the basin area of ​​the basin-type insulator to be detected.

[0028] Preferably, when the lead screw nut drives the second probe fixture to move to the first bearing, the second ultrasonic detection probe and the upper end surface of the pot-type insulator to be detected are located in the same horizontal plane;

[0029] When the lead screw nut drives the second probe fixture to move to the second bearing, the second ultrasonic detection probe and the lower end surface of the pot-type insulator to be detected are located in the same horizontal plane.

[0030] Preferably, a first sliding groove is provided on the table top of the first table body;

[0031] The bottom of the first fixing bracket is fixed to the first sliding groove by bolts and nuts, and the position of the first fixing bracket is changed by adjusting the positions of the bolts and nuts in the first sliding groove.

[0032] Preferably, the second fixed support is an inclined beam support, comprising a first inclined support column, a second inclined support column and a horizontal beam;

[0033] The bottom of the first inclined support column and the bottom of the second inclined support column are both arranged on the upper surface of the table top of the first table body;

[0034] The included angle between the first inclined support and the table top of the first table body and the included angle between the second inclined support and the table top of the first table body are both equal to the included angle between the basin area of ​​the basin-type insulator to be tested and the table top of the first table body;

[0035] The second probe fixture is arranged on a side wall of the first inclined support pillar or the second inclined support pillar.

[0036] Preferably, a second sliding groove and a third sliding groove are provided on the table top of the first table body;

[0037] The bottom of the first inclined support column is fixed to the second sliding groove by bolts and nuts; the second inclined support column is fixed to the third sliding groove by bolts and nuts;

[0038] The position of the second fixing bracket is changed by adjusting the positions of the bolt and the nut in the second sliding groove and the third sliding groove.

[0039] Preferably, the first ultrasonic detection probe is connected with an edge zone wedge, and the curvature of the arc surface of the edge zone wedge on the side in contact with the edge zone of the pot-type insulator to be detected is the same as the arc curvature of the edge zone of the pot-type insulator to be detected;

[0040] The second ultrasonic detection probe is connected with a basin area wedge, and the arc shape of the basin area wedge contacting the basin area of ​​the basin type insulator to be detected matches the basin shape of the basin area of ​​the basin type insulator to be detected.

[0041] Preferably, the upper surface of the rotating platform is in the shape of an inverted pot, so as to axially fix the pot-type insulator to be inspected when the pot-type insulator to be inspected is inverted on the upper surface of the rotating platform.

[0042] Preferably, the first rotating shaft and the rotating platform are key-connected.

[0043] The automatic ultrasonic detection device for GIS pot-type insulators provided in the present application includes a first table body, a rotating device, an edge detection device and a pot body detection device. The rotating device uses a first stepper motor to drive a rotating platform on which the GIS pot-type insulator is placed to rotate through a rotating shaft. When detecting the GIS pot-type insulator, it is only necessary to place the GIS pot-type insulator on the rotating platform and turn on the first stepper motor at the same time, thereby driving the first rotating shaft and the rotating platform to rotate, so that the GIS pot-type insulator located on the rotating platform rotates accordingly, so that the first ultrasonic detection probe clamped by the first probe clamp moves along the edge area of ​​the GIS pot-type insulator to detect the edge area of ​​the GIS pot-type insulator, and the second ultrasonic detection probe clamped by the second probe clamp moves along the pot body area of ​​the GIS pot-type insulator to detect the pot body area of ​​the GIS pot-type insulator. By designing a rotating device to drive the GIS pot-type insulator to rotate, the edge detection device is used to detect the edge area of ​​the GIS pot-type insulator, and the pot body detection device is used to detect the pot body area of ​​the GIS pot-type insulator, thereby completing the automatic detection of the edge area and pot body area of ​​the GIS pot-type insulator, realizing full coverage detection of the GIS pot-type insulator, eliminating the need for manual rotation of the GIS pot-type insulator, avoiding missed detection caused by manual detection, and improving detection accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments of the present invention in conjunction with the accompanying drawings, wherein

[0045] Figure 1 A schematic diagram of the structure of the automatic ultrasonic detection device for GIS pot-type insulators provided in this application;

[0046] Figure 2 A schematic diagram of the first table structure provided for this application;

[0047] Figure 3 A schematic diagram of the structure of the rotating device provided for this application;

[0048] Figure 4 A schematic diagram of the second table structure provided for this application;

[0049] Figure 5 A schematic diagram of the structure of the edge detection device provided in this application;

[0050] Figure 6 A schematic diagram of the first probe fixture structure provided in this application;

[0051] Figure 7 A front view of a second probe fixture provided in this application;

[0052] Figure 8 A side view of a second probe fixture provided for the present application;

[0053] Fig. 9 A schematic diagram of the structure of the basin detection device provided in this application;

[0054] Explanation of the reference numerals in the specification: 1. first table body; 10. first reserved hole; 11. first sliding groove; 12. second sliding groove; 13. third sliding groove; 2. rotating device; 20. second table body; 200. second reserved hole; 201. third reserved hole; 21. first rotating axis; 22. first stepper motor; 220. second rotating axis; 23. rotating platform; 24. first gear; 25. second gear; 3. edge detection device; 30. first fixed bracket; 31. first probe Clamp; 32, first ultrasonic detection probe; 33 edge area wedge 4, basin detection device; 40, second fixed bracket; 400, first inclined support; 401, second inclined support; 402, horizontal beam; 41, second probe clamp; 42, second ultrasonic detection probe; 43, first bearing seat; 44, second bearing seat; 45, first bearing; 46, second bearing; 47, lead screw; 48, lead screw nut; 49, second stepping motor; 50, coupling; 51, basin area wedge. DETAILED DESCRIPTION

[0055] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0056] See also Figure 1 , Figure 1 The figure shows a schematic structural diagram of the automatic ultrasonic detection device for GIS pot-type insulators provided in the present application. The device specifically comprises a first table body 1, a rotating device 2, an edge detection device 3 and a pot body detection device 4.

[0057] The first table body 1 is provided with a first reserved hole 10 on the table top. Figure 2 shown.

[0058] In some specific examples of the present application, the bracket of the first table body 1 can be fixed to the ground by anchor bolts, so that the entire detection device is fixed to the ground to maintain the stability of the detection device.

[0059] like Figure 3 As shown, the rotating device 2 includes a second table body 20 , a first rotating shaft 21 , a first stepper motor 22 and a rotating platform 23 .

[0060] The second table body 20 is arranged below the first table body, and a second reserved hole 200 is arranged on the table top; the second reserved hole 200 is aligned with the center of the first reserved hole 10, such as Figure 4 shown.

[0061] In some specific examples of the present application, the bracket of the second table body 20 can also be fixed to the ground by anchor bolts to maintain the stability of the rotating device.

[0062] The first rotating shaft 21 passes through the second reserved hole 200 and the first reserved hole 10 .

[0063] The first stepper motor 22 is fixedly disposed on the lower surface of the table top of the second table body 20 to drive the first rotating shaft 21 to rotate.

[0064] The rotating platform 23 is arranged above the first reserved hole 10 and connected to the first rotating shaft 21 , and is used to place the pot-type insulator to be inspected on the upper surface of the rotating platform 23 , and drive the pot-type insulator to be inspected to rotate when the first rotating shaft 21 rotates.

[0065] like Figure 5 2 is a schematic diagram of the structure of an edge detection device provided in the present application. The edge detection device 3 specifically includes a first fixed bracket 30 , a first probe fixture 31 and a first ultrasonic detection probe 32 .

[0066] The bottom of the first fixing bracket 30 is disposed on the upper surface of the table top of the first table body 1 .

[0067] The first probe fixture 31 is disposed on the side wall of the first fixing bracket 30 , and is provided with a first ultrasonic detection probe 32 , so as to detect the edge area of ​​the pot-type insulator to be detected by using the first ultrasonic detection probe 32 .

[0068] like Figure 6 The figure shows a schematic diagram of the structure of the first probe clamp 31 provided in the present application. The circular ring at the upper end is a clamping structure, and the circular ring is tightened by screws to clamp the first ultrasonic detection probe 32. Two reserved through holes are provided at the lower end, and bolts are passed through the reserved through holes to fix the first probe clamp 31 on the side wall of the first fixed bracket 30.

[0069] In other embodiments of the present application, a duckbill pliers may be used as the first probe clamp, and a soft pad or protective layer may be provided at the clamping opening of the duckbill pliers to prevent mechanical damage or pressure damage to the first ultrasonic detection probe.

[0070] The pelvic body detection device 4 specifically includes a second fixing bracket 40 , a second probe fixture 41 and a second ultrasonic detection probe 42 .

[0071] The bottom of the second fixing bracket 40 is disposed on the upper surface of the table top of the first table body 1 .

[0072] The second probe fixture 41 is disposed on the side wall of the second fixing bracket 40 , and is provided with a second ultrasonic detection probe 42 , so as to detect the basin area of ​​the basin-type insulator to be detected by using the second ultrasonic detection probe 42 .

[0073] like Figure 7 The figure shows a front view of the second probe fixture 41 provided by the present application. Figure 8 The side view of the second probe fixture 41 provided in the present application is the same as the first probe fixture 31. The upper end ring is a clamping structure. The ring is tightened by screws to clamp the second ultrasonic detection probe 42. The lower end is provided with four reserved through holes. Bolts are passed through the reserved holes to fix the second probe fixture 41 to the side wall of the second fixed bracket 40. Figure 8 It can be seen that the side view of the lower end of the second probe fixture 41 is 7-shaped with a certain inclination angle. After the second probe fixture 41 is fixed to the side wall of the second fixing bracket 40, the second ultrasonic detection probe 43 clamped therein can be kept horizontal.

[0074] In other embodiments of the present application, a duckbill pliers may be used as the second probe clamp, and a soft pad or protective layer may be provided at the clamping opening of the duckbill pliers to prevent mechanical damage or pressure damage to the second ultrasonic detection probe.

[0075] When inspecting the GIS pot insulator, the GIS pot insulator is placed on a rotating platform, and the first stepper motor is turned on to drive the first rotating shaft and the rotating platform to rotate, so that the GIS pot insulator on the rotating platform rotates accordingly, thereby making the first ultrasonic detection probe clamped by the first probe clamp move along the edge area of ​​the GIS pot insulator to inspect the edge area of ​​the GIS pot insulator, and the second ultrasonic detection probe clamped by the second probe clamp is moved along the basin area of ​​the GIS pot insulator to inspect the basin area of ​​the GIS pot insulator.

[0076] The automatic ultrasonic detection device for GIS pot-type insulators provided in the present application is designed with an edge detection device to detect the edge area of ​​the GIS pot-type insulator, and is designed with a pot body detection device to detect the pot body area of ​​the GIS pot-type insulator. At the same time, a rotating device is designed to drive the GIS pot-type insulator to rotate. During the detection process, the GIS pot-type insulator is driven to rotate by the rotating device, thereby completing automatic detection of the edge area and pot body area of ​​the GIS pot-type insulator, realizing full coverage detection of the GIS pot-type insulator, avoiding missed detection caused by manual detection, and improving detection accuracy and efficiency.

[0077] Furthermore, if Figure 3 and Figure 4 As shown, the first rotating shaft 21 is sleeved with a first gear 24;

[0078] The first stepper motor 22 is connected to a second rotating shaft 220, and the second rotating shaft 220 passes through a third reserved hole 201 provided on the table top of the second table body 20;

[0079] The second rotating shaft 220 is located above the third reserved hole 201 and is sleeved with a second gear 25 meshing with the first gear 24; when the first stepper motor 22 is started, the second rotating shaft 220 drives the second gear 25 to drive the first gear 24 to rotate, thereby driving the first rotating shaft 21 to rotate.

[0080] When testing the pot-type insulator, turn on the first stepper motor to drive the second rotating shaft to drive the second gear to rotate, so that the first gear meshing with the second gear rotates, thereby driving the first rotating shaft and the rotating platform to rotate, so that the GIS pot-type insulator located on the rotating platform rotates accordingly.

[0081] Optionally, in some embodiments of the present application, the upper surface of the rotating platform 23 is in the shape of an inverted basin, such as Figure 3 As shown, when the pot-type insulator to be tested is turned upside down on the rotating platform 23 for testing, the pot-shaped protrusion on the upper surface of the rotating platform 23 can axially fix the pot-type insulator to be tested.

[0082] For example, the first stepper motor 22 can be fixed to the lower surface of the second table body 20 by bolts; the first gear 24 is keyed to the first rotating shaft 21; the second gear 25 is keyed to the second rotating shaft 220; and the rotating platform 23 is keyed to the top end of the first rotating shaft 21.

[0083] Optionally, in some embodiments of the present application, the first fixed bracket 30 and the second fixed bracket 40 are rod-shaped brackets. If the height of the GIS pot-type insulator is relatively high, the second ultrasonic detection probe cannot fully detect the pot body area of ​​the pot-type insulator within one rotation cycle. The position of the second probe clamp 41 on the second fixed bracket 40 can be changed to change the height of the second ultrasonic detection probe 42, and the rotating device can be started again to achieve full coverage detection of the pot body area of ​​the GIS pot-type insulator.

[0084] Furthermore, in some embodiments of the present application, in order to enable the second ultrasonic detection probe to automatically move along the axial direction of the basin area of ​​the basin-type insulator to be detected, so as to realize automatic full coverage detection of the basin area, Fig. 9 As shown, the basin detection device also includes a first bearing seat 43, a second bearing seat 44, a first bearing 45, a second bearing 46, a lead screw 47, a lead screw nut 48, a second stepping motor 49 and a coupling 50.

[0085] The first bearing 45 and the second bearing 46 are disposed at upper and lower ends of the second fixing bracket 40 close to the pot-type insulator to be inspected through the first bearing seat 43 and the second bearing seat 44 respectively.

[0086] The lead screw 47 passes through the first bearing 45 and the second bearing 46; the angle between the lead screw 47 and the plane where the upper end face of the pot-type insulator to be tested is equal to the angle between the side surface of the pot body area of ​​the pot-type insulator to be tested and the plane where the upper end face of the pot-type insulator to be tested is located.

[0087] The lead screw nut 48 is sleeved on the lead screw 47 and connected to the second probe fixture 41 .

[0088] The second stepper motor 49 is connected to one end of the lead screw 47 through a coupling 50, and is used to drive the lead screw 47 to rotate, so that the lead screw nut 48 drives the second probe clamp 41 to move along the lead screw 47, thereby causing the second ultrasonic detection probe 42 clamped by the second probe clamp 41 to move axially along the basin area of ​​the basin-type insulator to be detected.

[0089] By arranging the lead screw in parallel with the basin body area of ​​the basin-type insulator to be inspected, when the second clamp moves along the lead screw, the second ultrasonic detection probe clamped therein can better contact the basin body area of ​​the basin-type insulator to be inspected.

[0090] In some embodiments of the present application, in order to cover the entire area of ​​the pot body of the pot-type insulator to be inspected, when the lead screw nut 48 drives the second probe fixture 41 to move to the first bearing 45, the second ultrasonic detection probe 43 and the upper end surface of the pot-type insulator to be inspected are located at the same horizontal plane;

[0091] When the lead screw nut 48 drives the second probe fixture 41 to move to the second bearing 46 , the second ultrasonic detection probe 43 and the lower end surface of the pot-type insulator to be detected are located at the same horizontal plane.

[0092] Specifically, a ball screw nut pair is formed by using a lead screw 47 and a lead screw nut 48 to convert the rotational motion of the second stepper motor 49 into linear motion. When the second stepper motor 49 is started, the rotating shaft in the second stepper motor 49 drives the lead screw 47 to rotate through a coupling, and the lead screw nut 48 on the lead screw 47 moves up and down along the thread on the lead screw 47, so that the second probe clamp 42 connected to the lead screw nut 48 moves along the lead screw 47, so that the second ultrasonic detection probe 43 clamped by the second probe clamp 42 moves axially relative to the basin area of ​​the basin insulator to be detected, and at the same time, under the action of the rotating device 2, full coverage detection of the basin area is achieved.

[0093] Optionally, in order to enable the second fixing bracket 40 to be stably arranged on the first table body 1, in some embodiments of the present application, as Fig. 9 As shown, the second fixed bracket 40 is an inclined beam bracket, including a first inclined support column 400 , a second inclined support column 401 and a horizontal beam 402 .

[0094] The bottom of the first inclined support post 400 and the bottom of the second inclined support post 401 are both arranged on the upper surface of the table top of the first table body 1 .

[0095] The angle between the first inclined support 400 and the table top of the first table body 1 and the angle between the second inclined support 401 and the table top of the first table body 1 are both equal to the angle between the pot area of ​​the pot-type insulator to be tested and the table top of the first table body 1.

[0096] The second probe fixture 41 is disposed on a side wall of the first inclined support post 400 or the second inclined support post 401 .

[0097] Optionally, in some embodiments of the present application, the first fixed bracket 30 and the second fixed bracket can be fixed to the first table body 1 by bonding, hinging or welding, but after these connection methods, the fixed brackets cannot move, which reduces the flexibility and practicality of the entire detection device.

[0098] Based on the above reasons, in a preferred embodiment of the present application, Figure 2 As shown, the first table body 1 is provided with a first sliding groove 11 , a second sliding groove 12 and a third sliding groove 13 .

[0099] The bottom of the first fixing bracket 30 is fixed to the first sliding groove 11 by bolts and nuts. The position of the first fixing bracket 30 can be changed by adjusting the positions of the bolts and nuts in the first sliding groove 11 .

[0100] The bottom of the first inclined support 400 in the second fixed bracket 40 is fixed to the second sliding groove 12 by bolts and nuts; the second inclined support 401 is fixed to the third sliding groove 13 by bolts and nuts;

[0101] At the same time, by adjusting the positions of the bolts and nuts in the second sliding groove 12 and the third sliding groove 13 , the position of the second fixing bracket 40 can be changed.

[0102] In order to further improve the contact quality between the ultrasonic detection probe and the pot-type insulator to be detected, in some embodiments of the present application, an edge zone wedge 33 is also connected to the first ultrasonic detection probe 32, and the arc curvature of the side of the edge zone wedge 33 in contact with the edge zone of the pot-type insulator to be detected is the same as the arc curvature of the edge zone of the pot-type insulator to be detected.

[0103] The second ultrasonic detection probe 42 is connected with a basin wedge 51 . The arc shape of the basin wedge 51 on the side in contact with the basin of the basin insulator to be detected matches the basin shape of the basin of the basin insulator to be detected.

[0104] The detection process of the automatic ultrasonic detection device for GIS pot-type insulators provided in the present application is as follows: placing the pot-type insulator to be detected coated with a coupling agent on the upper surface of the rotating platform, the edge area wedge on the second ultrasonic detection probe in the edge detection device contacts the edge area of ​​the pot-type insulator to be detected, starting the first stepper motor to rotate the rotating platform, completing the detection of the edge area of ​​the pot-type insulator to be detected, and turning off the first stepper motor; starting the second stepper motor so that the lead screw nut drives the second ultrasonic detection probe to move to the first bearing or the second peripheral bearing, so that the pot area wedge on the second ultrasonic detection probe contacts the upper end face or the lower end face of the pot-type insulator to be detected, turning off the second stepper motor and starting the first stepper motor to rotate the rotating platform, when the rotating platform drives the pot-type insulator to be detected to rotate one circle, turning off the first stepper motor and starting the second stepper motor, so that the lead screw nut drives the second ultrasonic detection probe to move to the undetected pot area, turning off the second stepper motor and starting the first stepper motor, and repeating the above process until the full coverage detection of the pot area is completed.

[0105] In other embodiments, the detection process of the GIS pot-type insulator automatic ultrasonic detection device can also be as follows: the pot-type insulator to be detected, which is coated with a coupling agent, is placed on the upper surface of the rotating platform, the edge area wedge on the second ultrasonic detection probe in the edge detection device contacts the edge area of ​​the pot-type insulator to be detected, the second stepper motor is started so that the screw nut drives the second ultrasonic detection probe to move axially along the basin body area, and after moving from the upper end surface of the basin body area to the lower end surface or from the lower end surface to the upper end surface, the second stepper motor is turned off and the first stepper motor is started to rotate the rotating platform, so that the edge area wedge and the basin area wedge contact the undetected area of ​​the pot-type insulator to be detected, the first stepper motor is turned off and the second stepper motor is turned on again, and the above process is repeated until full coverage detection of the edge area and the basin body area is completed.

[0106] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the present invention.

Claims

1. An automatic ultrasonic detection device for GIS pot insulators, characterized in that: include: The first table body has a first reserved hole on its table top; The rotating device specifically comprises: A second table body is arranged below the first table body, and a second reserved hole is arranged on the table top; the second reserved hole is aligned with the center of the first reserved hole; A first rotating shaft, passing through the second reserved hole and the first reserved hole; A first stepper motor is fixedly mounted on the lower surface of the table top of the second table body and is used to drive the first rotating shaft to rotate; A rotating platform, arranged above the first reserved hole and connected to the first rotating shaft, used for placing the pot-type insulator to be inspected on the upper surface of the rotating platform and driving the pot-type insulator to be inspected to rotate when the first rotating shaft rotates; The edge detection device specifically comprises: A first fixing bracket, the bottom of which is arranged on the upper surface of the table top of the first table body; A first probe fixture is arranged on the side wall of the first fixing bracket and is provided with a first ultrasonic detection probe, and is used to detect the edge area of ​​the pot-type insulator to be detected by using the first ultrasonic detection probe; The basin detection device specifically comprises: A second fixing bracket, the bottom of which is arranged on the upper surface of the table top of the first table body; The second probe fixture is arranged on the side wall of the second fixing bracket and is provided with a second ultrasonic detection probe, and is used for detecting the basin body area of ​​the basin-type insulator to be detected by using the second ultrasonic detection probe.

2. The automatic ultrasonic detection device for GIS pot insulators according to claim 1 is characterized in that: The first rotating shaft is sleeved with a first gear; The first stepper motor is connected to a second rotating shaft, and the second rotating shaft passes through a third reserved hole arranged on the table top of the second table body; The second rotating shaft is sleeved with a second gear meshing with the first gear at a position above the third reserved hole; when the first stepper motor is started, the second rotating shaft drives the second gear to drive the first gear to rotate, thereby driving the first rotating shaft to rotate.

3. The automatic ultrasonic detection device for GIS pot insulator according to claim 1 is characterized in that: The basin detection device also includes: The first bearing and the second bearing are respectively arranged at upper and lower ends of the second fixing bracket close to the pot-type insulator to be tested through the first bearing seat and the second bearing seat; A lead screw passes through the first bearing and the second bearing; the angle between the lead screw and the plane where the upper end surface of the pot-type insulator to be tested is located is equal to the angle between the side surface of the pot body area of ​​the pot-type insulator to be tested and the plane where the upper end surface of the pot-type insulator to be tested is located; A lead screw nut, sleeved on the lead screw and connected to the second probe fixture; The second stepper motor is connected to one end of the lead screw through a coupling, and is used to drive the lead screw to rotate, so that the lead screw nut drives the second probe fixture to move along the lead screw, thereby causing the second ultrasonic detection probe clamped by the second probe fixture to move axially along the basin area of ​​the basin-type insulator to be detected.

4. The automatic ultrasonic detection device for GIS pot insulators according to claim 3 is characterized in that: When the lead screw nut drives the second probe fixture to move to the first bearing, the second ultrasonic detection probe and the upper end surface of the pot-type insulator to be detected are located in the same horizontal plane; When the lead screw nut drives the second probe fixture to move to the second bearing, the second ultrasonic detection probe and the lower end surface of the pot-type insulator to be detected are located in the same horizontal plane.

5. The automatic ultrasonic detection device for GIS pot insulators according to claim 1 is characterized in that: A first sliding groove is provided on the table top of the first table body; The bottom of the first fixing bracket is fixed to the first sliding groove by bolts and nuts, and the position of the first fixing bracket is changed by adjusting the positions of the bolts and nuts in the first sliding groove.

6. The automatic ultrasonic detection device for GIS pot insulators according to claim 1 is characterized in that: The second fixed support is an inclined beam support, comprising a first inclined support column, a second inclined support column and a horizontal beam; The bottom of the first inclined support column and the bottom of the second inclined support column are both arranged on the upper surface of the table top of the first table body; The included angle between the first inclined support and the table top of the first table body and the included angle between the second inclined support and the table top of the first table body are both equal to the included angle between the basin area of ​​the basin-type insulator to be tested and the table top of the first table body; The second probe fixture is arranged on a side wall of the first inclined support pillar or the second inclined support pillar.

7. The automatic ultrasonic detection device for GIS pot insulators according to claim 6 is characterized in that: The table top of the first table body is provided with a second sliding groove and a third sliding groove; The bottom of the first inclined support column is fixed to the second sliding groove by bolts and nuts; the second inclined support column is fixed to the third sliding groove by bolts and nuts; The position of the second fixing bracket is changed by adjusting the positions of the bolt and the nut in the second sliding groove and the third sliding groove.

8. The automatic ultrasonic detection device for GIS pot insulators according to claim 1 is characterized in that: The first ultrasonic detection probe is connected with an edge wedge, and the curvature of the arc surface of the edge wedge on the side in contact with the edge of the pot-type insulator to be detected is the same as the arc curvature of the edge of the pot-type insulator to be detected; The second ultrasonic detection probe is connected with a basin area wedge, and the arc shape of the basin area wedge contacting the basin area of ​​the basin type insulator to be detected matches the basin shape of the basin area of ​​the basin type insulator to be detected.

9. The automatic ultrasonic detection device for GIS pot-type insulators according to claim 1 is characterized in that: The upper surface of the rotating platform is in the shape of an inverted pot, and is used to axially fix the pot-type insulator to be inspected when the pot-type insulator to be inspected is inverted on the upper surface of the rotating platform.

10. The automatic ultrasonic detection device for GIS pot insulators according to claim 1, characterized in that: The first rotating shaft and the rotating platform are connected by a key.

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