Wedge Tap Connector Removal Tool for Safer Line Disconnection
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Solution Overview
Problem
The existing methods for removing wedge connectors from transmission and distribution lines are laborious and hazardous for linemen, requiring significant manual manipulation and use of impact tools at elevated positions, which complicates the process and increases safety risks.
Innovation Solution
A wedge connector removal tool with an elongated arm, attachment member, and threaded nut is designed to dislodge the wedge from the sleeve, allowing for efficient removal and replacement without the need for manual manipulation or powder cartridges, featuring a drive bolt that applies force through a threaded nut and protrusions for secure anchoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an impact tool is used to drive the wedge out of the wedge connector, then the wedge can be removed, but the process becomes laborious and hazardous requiring significant manual manipulation at elevated positions
Solution Approach 1:
The patent introduces a removal tool as an intermediary device between the lineman and the wedge connector. This tool includes a C-shaped member that couples to the wedge connector and a drive member that applies force to the wedge, eliminating the need for direct manual manipulation of the wedge itself and reducing the complexity and hazard of the removal process
Solution Approach 2:
The removal tool is divided into distinct functional segments: a C-shaped member for coupling to the wedge connector, a drive member for applying force to the wedge, and a force application mechanism. This segmentation allows each component to perform its specific function efficiently, simplifying the overall removal operation
2Productivity
If manual manipulation of the impact tool and wedge is required, then the wedge can be removed, but lineman safety is compromised due to precarious positions and need to retrieve additional tools
Solution Approach 1:
The removal tool merges multiple functions into a single integrated device: the C-shaped member couples to the wedge connector while simultaneously providing a mounting structure for the drive member, which in turn applies force to the wedge. This consolidation eliminates the need for linemen to handle multiple separate tools while positioned precariously, improving both productivity and safety
3Strength
If a charged impact tool is used to drive the wedge into the sleeve, then secure connection is achieved with holding pull-out force of 1200 lbs, but the removal process becomes equally complex requiring similar manual manipulation
Solution Approach 1:
The patent applies the inversion principle by using the same C-shaped member that receives the wedge during installation to also serve as the coupling mechanism for removal. The drive member applies force in the opposite direction (outward instead of inward) to eject the wedge, maintaining the strong connection during installation while enabling easy removal
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tool enables safe and efficient removal of wedge connectors, reducing manual labor and eliminating the need for powder cartridges, thereby enhancing lineman safety and operational efficiency.
Implementation Method 1
a drive bolt operable to translate through the threaded nut and interface with a surface of the wedge, where the advancement of the drive bolt displaces the wedge
Implementation Method 2
at least one protrusion (e.g., a hook, bar, or other protruding structure) extending perpendicular from the front surface of the elongated arm. The attachment member may be operable to engage with the wedge sleeve's top surface
Data Source
AI summary
The present invention provides an improved wedge connector removal tool for disconnecting a transmission or distribution line wedge tap connection and the methods of using such a tool. The tool may couple to a wedge connector around the transmission or distribution lines enabling a lineman's hands to be free from supporting the tool, and the wedge may be removed from the connection without the incorporation of powder charges.