Power transmission line strain insulator string replacement device

By designing a clamping mechanism including arc pressure plate, arc clamp, ball block and arc end block, the problem of cable slipping when replacing tension insulator strings is solved, achieving higher safety and efficiency.

CN119651414AActive Publication Date: 2025-03-18JIANGSU JK ELECTRICAL EQUIP CO LTD
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Patent Information

Application Number
CN202411819478.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-11
Publication Date
2025-03-18
Estimated Expiration
2044-12-11

AI Technical Summary

Technical Problem

When replacing the tension-resistant insulator string of transmission lines, due to the smooth surface of the cable, the friction between the clamps and the cable surface cannot be effectively fixed, which is prone to slippage, which increases the difficulty of replacement.

Method used

A clamping mechanism including arc pressure plate, arc clamping plate, ball block and arc end block is designed. Through the ball grooves and convex patterns of arc pressure plate, the cables are deformed and tortuous during clamping, increasing friction and limiting the breaking space to prevent slipping.

Benefits of technology

It effectively prevents the cable from slipping and falling during the tightening process, and improves the safety and efficiency of tension-resistant insulator string replacement.

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Abstract

The invention discloses a power transmission line strain insulator string replacement device, relates to the technical field of power line maintenance, and aims to solve the problem that when a strain insulator string is replaced, the strain insulator string cannot be fixed and is easy to slip off when the tension is large due to the fact that the surface smoothness of a cable is high and the cable only depends on the friction force between a clamping piece and the surface of the cable. According to the power transmission line strain insulator string replacement device, a ball block and an arc end block are respectively matched through a ball groove and a convex pattern of an arc pressing plate, so that a cable is deformed and bent in a clamping process, separation spaces on the upper side and the lower side are limited in a pulling process, and a contact surface with a clamping piece is enlarged when the cable slips off from a central position; meanwhile, the zigzag path enables the cable to bear larger resistance compared with a linear path, thereby preventing the cable from slipping and falling off due to the smooth surface of the cable when the cable is tensioned, and preventing the difficulty of replacing a strain insulator string from being increased.
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