CN-121978208-A - Post insulator flaw detection device

CN121978208ACN 121978208 ACN121978208 ACN 121978208ACN-121978208-A

Abstract

The application relates to a post insulator flaw detection device which comprises a base, a lifting seat, a detection assembly and a detection probe, wherein the lifting seat is arranged on the base and can move along the height direction of the base, the detection assembly is arranged on the lifting seat and comprises a first detection seat and a second detection seat, the first detection seat is positioned above the second detection seat, the first detection seat and the second detection seat can be mutually close to or far away from each other along a preset direction, when the first detection seat and the second detection seat move to the upper coaxial position and the lower coaxial position, the inner wall of the first detection seat is abutted against one side of the upper section of a post insulator to be detected, the inner wall of the second detection seat is abutted against the other side of the lower section of the surface of the post insulator to be detected, and the detection probe is respectively arranged on the first detection seat and the second detection seat and performs flaw detection on the outer surface of the post insulator to be detected by moving around the central axis of the first detection seat or the second detection seat. The application can realize the coverage detection of the whole outer surface of the post insulator.

Inventors

YAN XU
XIE FENGLONG
WANG CHAO
ZHAO WEI
HAN YUAN

Assignees

内蒙古科电电气有限责任公司

Dates

Publication Date: 20260505
Application Date: 20260129

Claims (10)

1. The utility model provides a pillar insulator detection device that detects a flaw which characterized in that includes: A base; the lifting seat is arranged on the base and can move along the height direction of the base; the detection assembly is arranged on the lifting seat and comprises a first detection seat and a second detection seat, the first detection seat is positioned above the second detection seat, the first detection seat and the second detection seat can be mutually close to or far away from each other along a preset direction, when the first detection seat and the second detection seat move to the vertical coaxial position, the inner wall of the first detection seat is abutted with one side of the upper section of the post insulator to be detected, and the inner wall of the second detection seat is abutted with the other side of the lower section of the surface of the post insulator to be detected; The detection probes are respectively arranged on the first detection seat and the second detection seat, and the detection probes perform flaw detection on the outer surface of the post insulator to be detected by moving circumferentially around the central axis of the first detection seat or the second detection seat.
2. The post insulator flaw detection device according to claim 1, wherein the first and second detection seats have the same structure, and each of the first and second detection seats comprises: the limiting sleeve is semi-annular, and the inner wall of the limiting sleeve can be abutted against the surface of the post insulator to be tested; the guide sleeve and the limit sleeve are coaxially arranged up and down and are connected with the limit sleeve through a vertical plate, and a notch is formed in the guide sleeve; the gear ring is provided with a notch, the gear ring is sleeved in a groove on the outer wall of the guide sleeve and can rotate around the central shaft of the guide sleeve, the detection probe is mounted on the gear ring, and the detection probe can rotate around the central shaft of the guide sleeve under the driving of the gear ring.
3. The post insulator flaw detection device according to claim 2, wherein the first detection seat and the second detection seat further comprise a first gear and a second gear respectively, the first gear and the second gear are meshed with the toothed ring respectively, the meshing point of the first gear and the toothed ring is a first meshing point, the meshing point of the second gear and the toothed ring is a second meshing point, and the arc length between the first meshing point and the second meshing point on the toothed ring is greater than the arc length of the notch position of the toothed ring.
4. The post insulator flaw detection device according to claim 3, wherein the first gear and the second gear are in transmission connection with a third motor through a belt wheel and a transmission belt.
5. The post insulator flaw detection device according to any one of claims 2-4, further comprising symmetrically distributed transmission mechanisms, wherein the transmission mechanisms are correspondingly in transmission connection with the first detection seat and the second detection seat, and the transmission mechanisms comprise: the bottom plate is arranged on the lifting seat, and a guide long hole is formed in the bottom plate; The connecting arm is arranged in the guide long hole in a penetrating way, is arranged on the bottom plate through a transverse plate and can move along the guide long hole, and one end of the connecting arm is connected with the limiting sleeve; the support frame is arranged on the bottom plate, a sliding block is arranged on the support frame, and the sliding block is connected with the other end of the connecting arm; The spring is arranged on the support frame, one end of the spring is abutted against the support frame, and the other end of the spring is connected with one side of the sliding block; The moving block is arranged on the other side of the sliding block, one side, close to the sliding block, of the moving block is a curved surface, and when the moving block moves along the direction perpendicular to the spring, the spring pushes the sliding block to move along the length direction of the spring, and then the connecting arm is driven to move along the guide long hole.
6. The post insulator flaw detection device according to claim 5, wherein a roller is provided on a side of the slider close to the moving block.
7. The post insulator flaw detection device according to claim 6, wherein the transmission mechanism further comprises a screw rod, the screw rod is arranged at the end part of the support frame, the screw rod is in transmission connection with the second motor through a belt wheel and a transmission belt, a sliding seat is sleeved on the screw rod in a threaded manner, the sliding seat is in sliding fit with the end part of the support frame, and the sliding seat is connected with the moving block through a connecting rod.
8. The post insulator flaw detection device according to claim 5, wherein a side plate is arranged on the base, the moving block is connected with a vacuum adsorption plate through a push-pull rod, and the vacuum adsorption plate can be close to the side plate under the drive of the moving block and is adsorbed on the side plate through negative pressure.
9. The post insulator flaw detection device according to claim 1, wherein the base is provided with a driving screw and a guide rod extending along the height direction of the base, the lifting seat is in threaded connection with the driving screw, the lifting seat is in sliding fit with the guide rod, and the driving screw is in driving connection with the first motor through a belt wheel and a driving belt.
10. The post insulator flaw detection device according to claim 1, wherein universal wheels are provided on the base.

Description

Post insulator flaw detection device Technical Field The application relates to the technical field of power equipment detection, in particular to a post insulator flaw detection device. Background The post insulator is core insulating equipment in the power system, is mainly used for supporting and fixing wires, realizes insulation and isolation between the wires and the towers, and the performance stability of the post insulator is directly related to safe operation of a power grid. The post insulator is easy to crack, break, age and other defects due to long-term exposure to the severe natural environments such as wind, rain, ice and snow, ultraviolet radiation and the like. If the defects are not found and treated in time, the insulation performance is possibly reduced, electric accidents such as short circuit, flashover and the like are caused, large-area power failure is caused, and serious economic loss and social influence are caused. At present, the flaw detection mode of the post insulator has a plurality of defects. The traditional detection equipment can only detect the single side face of the insulator at a time, the detection efficiency is low, and the detection requirements of large scale and high frequency are difficult to meet. Meanwhile, the detection result is easily influenced by subjective factors such as experience level, operation standardization, fatigue state and the like of operators, so that the detection accuracy and stability are poor, and the consistency and reliability of detection data are difficult to guarantee. Disclosure of Invention The application provides a post insulator flaw detection device which is used for solving the problem that in the prior art, detection can only be carried out on a single side face of an insulator at a time, and the detection efficiency is low. The application provides a post insulator flaw detection device, comprising: A base; The lifting seat is arranged on the base and can move along the height direction of the base; The detection assembly is arranged on the lifting seat and comprises a first detection seat and a second detection seat, the first detection seat is positioned above the second detection seat, the first detection seat and the second detection seat can be mutually close to or far away from each other along a preset direction, when the first detection seat and the second detection seat move to the upper coaxial position and the lower coaxial position, the inner wall of the first detection seat is abutted with one side of the upper section of the post insulator to be detected, and the inner wall of the second detection seat is abutted with the other side of the lower section of the surface of the post insulator to be detected; The detection probes are respectively arranged on the first detection seat and the second detection seat, and detect the outer surface of the post insulator to be detected by moving around the central axis of the first detection seat or the second detection seat in the circumferential direction. In one possible design, the first detecting seat and the second detecting seat have the same structure, and each of the first detecting seat and the second detecting seat comprises: The limiting sleeve is semi-annular, and the inner wall of the limiting sleeve can be abutted against the surface of the post insulator to be tested; The guide sleeve and the limit sleeve are coaxially arranged up and down and are connected with the limit sleeve through the vertical plate, and a notch is arranged on the guide sleeve; The gear ring is provided with a notch, the gear ring is sleeved in a groove on the outer wall of the guide sleeve, the gear ring can rotate around the central shaft of the guide sleeve, the detection probe is arranged on the gear ring, and the detection probe can rotate around the central shaft of the guide sleeve under the driving of the gear ring. In one possible design, the first detecting seat and the second detecting seat further comprise a first gear and a second gear respectively, the first gear and the second gear are meshed with the toothed ring respectively, the meshing point of the first gear and the toothed ring is a first meshing point, the meshing point of the second gear and the toothed ring is a second meshing point, and the arc length between the first meshing point and the second meshing point on the toothed ring is greater than the arc length of the notch position of the toothed ring. In one possible design, the first gear and the second gear are in driving connection with the third motor through a belt wheel and a driving belt. In one possible design, the device further comprises symmetrically distributed transmission mechanisms, wherein the transmission mechanisms are correspondingly in transmission connection with the first detection seat and the second detection seat, and the transmission mechanisms comprise: The bottom plate is arranged on the lifting seat and provided with a guide sl